Patent Description:
The present application relates to a power tool and, in particular, to a table cutting device.

Table cutting devices are commonly used for cutting workpieces. Nowadays, table cutting devices can also use battery packs as energy sources. For a table cutting device using a battery pack, an operator needs to bend and squat to a position flush with the battery pack and press a key on the battery pack so that information about the remaining electric quantity of the battery pack can be observed. In order to implement this operation, the operator often needs to suspend a cutting stroke first, which is extremely inconvenient for the operator.

A table cutting device according to the preamble of claim <NUM> is known form <CIT>.

To solve the deficiencies of the related art, an object of the present application is to provide a table cutting device in which electric quantity information of a battery pack can be seen quickly.

To achieve the preceding object, the present application adopts the technical solutions described below.

According to the invention, there is provided a table cutting device comprising.

According to the invention, the table cutting device includes a front portion, where the front portion includes at least a support plate, and a scale rail capable of displaying a height of the cutting assembly is disposed on the support plate.

According to the invention, the display assembly is located on the front portion of the table cutting device.

According to the invention, the display assembly is disposed on the support plate.

In an example, the table cutting device includes a right portion, where the right portion connects the front portion to a rear portion opposite to the front portion, and the display assembly is located on the right portion of the table cutting device.

In an example, the table cutting device includes an upper portion, where the upper portion includes at least an upper surface of the workbench, and when the workbench is parallel to a horizontal plane, a height of the display assembly in a vertical direction is lower than or equal to a height of the upper surface in the vertical direction.

In an example, the display assembly is embedded in the upper surface of the workbench.

In an example, the display assembly is disposed on the power supply connection assembly.

In an example, the display assembly includes a light-emitting portion, where the light-emitting portion conveys electric quantity information of the battery pack by emitting light.

In an example, the display assembly further includes a function portion capable of controlling the light-emitting portion to be turned on or off.

In an example, a distance between the light-emitting portion and the function portion is greater than or equal to <NUM>. In an example, the light-emitting portion is capable of conveying failure information of the battery pack through flashing.

In an example, the light-emitting portion is capable of conveying different types of failure information of the battery pack through a speed of flashing.

In an example, the light-emitting portion includes multiple indicator bars, and different numbers of indicator bars flicker so that the light-emitting portion is capable of conveying different types of failure information of the battery pack.

In an example, the power supply connection assembly includes a battery pack connection portion for being coupled to the battery pack, where the battery pack connection portion includes a connection opening for the battery pack to be inserted into, and the connection opening faces downward.

The present application has the following benefits: the table cutting device of the present application has the additional display assembly so that an operator can observe the electric quantity information of the battery pack when operating the table cutting device, thereby greatly improving operation convenience.

To make solved technical problems, adopted technical solutions, and achieved technical effects of the present application more apparent, the technical solutions in examples of the present application are further described in detail below in conjunction with the drawings. The examples described below are part, not all, of the examples of the present application.

The technical solution of a cutting system provided by the present application is described in detail below in conjunction with the drawings and the examples. Electric quantity information of a battery pack connected to a table cutting device in the cutting system can be quickly seen.

A cutting system <NUM> includes a table cutting device <NUM> and a battery pack <NUM> (referring to <FIG>). The battery pack <NUM> supplies power to the table cutting device <NUM>, and the battery pack <NUM> is detachably connected to the table cutting device <NUM>. As shown in <FIG> and <FIG>, the table cutting device <NUM> includes a workbench assembly <NUM>, a cutting assembly <NUM>, a support assembly <NUM>, and a drive assembly <NUM>. The workbench assembly <NUM> is supported by the support assembly <NUM>. The cutting assembly <NUM> is driven by the drive assembly <NUM> to work. The workbench assembly <NUM> includes rails <NUM> and a workbench <NUM>. A cutting member opening <NUM> is formed substantially in the middle of the workbench <NUM>. The rails <NUM> are connected to two sides of the workbench <NUM>.

As shown in <FIG> and <FIG>, the cutting assembly <NUM> includes a cutting member <NUM> rotatable about a first axis, and the cutting member <NUM> is mounted to the drive assembly <NUM>. The cutting assembly <NUM> further includes a dust discharge member <NUM>, a blade follower <NUM>, a shield <NUM>, and the like. The cutting member <NUM> is configured to extend through the cutting member opening <NUM> and also configured to be capable of being lifted, lowered, and inclined relative to the workbench assembly <NUM>. The blade follower <NUM> is disposed on a side of the cutting member <NUM> and configured to be parallel to the plane in which the cutting member <NUM> rotates. The blade follower <NUM> is disposed on the rear side of the cutting member <NUM> during cutting, and the rear side refers to a direction relatively away from a side from which a workpiece enters, so that the blade follower <NUM> separates the cut workpiece on the opposite side of the cutting. The blade follower <NUM> and the cutting member <NUM> can pass through the cutting member opening <NUM> together. The shield <NUM> is mounted outside the cutting member <NUM> and at least partially covers the cutting member <NUM> to protect a user from being hurt by the cutting member <NUM>. The shield <NUM> has a shield base <NUM>, where the shield <NUM> is rotatable relative to the shield base <NUM>, and the shield <NUM> is connected to the blade follower <NUM> through the shield base <NUM>.

As shown in <FIG>, the support assembly <NUM> is connected to the workbench assembly <NUM> and disposed below the workbench assembly <NUM>. The support assembly <NUM> includes several support rods <NUM> and base members <NUM> which are connected to each other. The several support rods <NUM> are disposed vertically and horizontally, and the base members <NUM> may be connected to the support rods <NUM> in different directions or may be disposed at end portions of some support rods <NUM>. The base members <NUM> are in contact with a placement surface on which the table cutting device <NUM> is disposed. In other examples, the support rods <NUM> may be inclined at a certain angle relative to the workbench assembly <NUM>. A support plate <NUM> is further included on a side of the support assembly <NUM>, is connected to support rods <NUM>, and generally forms a plane.

An adjustment mechanism <NUM> includes an operation member <NUM> and a scale rail <NUM>, and the adjustment mechanism <NUM> can adjust a cutting depth of the cutting member <NUM>. In this example, the scale rail <NUM> is an arc-shaped opening formed on the support plate <NUM>, and the operation member <NUM> extends through the arc-shaped opening. One end of the operation member <NUM> is directly or indirectly connected to the cutting assembly <NUM>, and the other end of the operation member <NUM> extends from the scale rail <NUM> to be connected to a handle. The operation member <NUM> is operated so that the cutting assembly <NUM> can be rotated to be inclined at a certain angle relative to the workbench assembly <NUM> and positioned at the angle. When the cutting member <NUM> is at a desired angle to perform an angled cutting operation, the handle or another locking device can lock and position the cutting assembly <NUM> for performing the angled cutting operation. In some examples, in addition to being rotatable along the scale rail <NUM>, the handle of the operation member <NUM> may rotate about its own axis. The handle is connected to an adjustment rod, the adjustment rod is connected to a lifting assembly, and the handle rotates to drive the adjustment rod to rotate so that the lifting assembly is moved and the cutting assembly <NUM> and the drive assembly <NUM> are lifted and lowered.

The support plate <NUM> is connected to a switch assembly <NUM> and a display assembly <NUM>. The switch assembly <NUM> is used for controlling the start, stop, lifting, and lowering of the drive assembly <NUM> and the cutting assembly <NUM>. The display assembly <NUM> is used for displaying status information of the table cutting device <NUM>, including, but not limited to, the display of an electric quantity, the height of the cutting assembly <NUM>, the rotational speed of a motor <NUM>, a rotational speed gear of the motor <NUM>, and the like. The display assembly <NUM> is described in detail hereinafter.

A first region <NUM> is an operation region in which an operator is typically located when operating the table cutting device <NUM>, and the operation region is further divided in detail hereinafter.

As shown in <FIG>, a power supply connection assembly <NUM> is also disposed below the workbench assembly <NUM> and used for connecting the battery pack <NUM> as shown in <FIG> to supply an energy source to the table cutting device <NUM>. The battery pack <NUM> is supported by a power supply support member <NUM>, and the power supply support member <NUM> extends to form a battery pack connection portion <NUM> to be coupled to the battery pack <NUM>. The battery pack connection portion <NUM> includes a connection opening <NUM> for the battery pack <NUM> to be inserted into, and the connection opening <NUM> may face downward, that is, the connection opening <NUM> may face the ground so that it is convenient for the user to plug and unplug the battery pack <NUM>. In an example, the table cutting device <NUM> may be directly connected to external power supply equipment such as mains.

As shown in <FIG>, the motor <NUM> is disposed in a mounting housing <NUM> and has an output shaft rotating about a second axis. The motor <NUM> is located on a side of the workbench assembly <NUM> and drives the cutting assembly <NUM> to move to complete an operation on the workpiece. The table cutting device <NUM> includes a first circuit board <NUM> disposed in a second housing portion <NUM>. The first circuit board <NUM> is disposed on a side of the motor <NUM> along a first direction parallel to the second axis. For a reasonable and compact space layout, when the first circuit board <NUM> is disposed in the direction parallel to the second axis, a first housing portion <NUM> has at least one wall surface parallel to the second axis.

As shown in <FIG> and <FIG>, the mounting housing <NUM> includes the first housing portion <NUM> and the second housing portion <NUM>. In this example, the first housing portion <NUM> and the second housing portion <NUM> are detachably connected to each other. A first circuit board <NUM> is disposed in the second housing portion <NUM>, and the motor <NUM> is disposed in the first housing portion <NUM>. The motor <NUM> rotates about an output axis, and the first circuit board assembly <NUM> is disposed along a direction parallel to the output axis. The cutting member <NUM> rotates in a cutting plane perpendicular to the preceding output axis. A projection of the first circuit board assembly <NUM> on the cutting plane at least partially coincides with a projection of the motor <NUM> on the cutting plane.

As shown in <FIG>, a mounting base <NUM> includes an accommodation cavity for placing a transmission assembly and lifting holes <NUM> for connecting the lifting assembly. The lifting holes <NUM> are formed at end portions of the mounting base <NUM> and connected to guide rails of the lifting assembly. A lifting hole <NUM> may be a sleeve structure having a certain length or several segmented sleeve structures to cover a larger area of a guide rail so that the movement of the cutting assembly <NUM> is more stable. In an example, the lifting holes <NUM> include a first lifting hole <NUM> and a second lifting hole <NUM>. The first lifting hole <NUM> is internally threaded, and the correspondingly connected guide rail is also threaded so that the cutting assembly <NUM> and the drive assembly <NUM> can climb on the guide rails. The second lifting hole <NUM> functions as a guide, and the inner wall of the second lifting hole <NUM> is closely connected to the corresponding guide rail and moves relative to the corresponding guide rail. The cross-section of the second lifting hole <NUM> may be circular. A circular hole has a relatively high requirement on tolerance during the machining and production of the hole. Unqualified accuracy causes jamming or the shake of a power head in a lifting process, affecting the user's feel and cutting accuracy. Therefore, the second lifting hole <NUM> may particularly be a waist-shaped hole or an elliptical hole. Second lifting holes <NUM> are formed at two ends of the mounting base <NUM> separately and may particularly be disposed symmetrically to provide a more stable guide and support.

The mounting housing <NUM> is connected to the cutting assembly <NUM> and the lifting assembly through the mounting base <NUM>. The mounting base <NUM> is connected to the first housing portion <NUM>. The mounting base <NUM> has a mounting surface <NUM> facing an end of the first housing portion <NUM>, where a via is formed in the middle of the mounting surface <NUM>, and the output shaft of the motor <NUM> passes through the via. The mounting surface <NUM> is conical or stepped and is inclined from the central via to the edge toward the cutting member. In this example, since a centrifugal fan matches the motor <NUM>, an air outlet is naturally formed between the inclined mounting surface <NUM> and the first housing portion <NUM>, and the inclined mounting surface <NUM> improves the flow rate of an airflow.

The mounting base <NUM> further includes a blade following portion <NUM> formed with a structure for connecting the blade follower <NUM>. The blade following portion <NUM> is fixedly connected to an end of the blade follower <NUM>, and the cutting member <NUM> is indirectly connected to the mounting base <NUM> through the transmission assembly so that the cutting assembly <NUM> and the mounting base <NUM> keep moving at the same time. Specifically, one of the guide rails is disposed between the blade following portion <NUM> and the accommodation cavity for the transmission assembly so that the lifting assembly is more compact.

As shown in <FIG>, and <FIG>, the second housing portion <NUM> includes air inlets, and the air inlets include at least a first air inlet <NUM> and a second air inlet <NUM> which are in different directions (referring to <FIG>). Specifically, the direction in which the first air inlet <NUM> is disposed and the direction in which the second air inlet <NUM> is disposed may be perpendicular to each other or at a certain angle. The air outlet is disposed at an end of the first housing portion <NUM> so that a heat dissipation airflow passes through the first circuit board assembly <NUM> and then the motor <NUM>.

As shown in <FIG>, in this example, the first housing portion <NUM> has a double-layer housing including an inner housing <NUM> and an outer housing <NUM> separately. The inner housing <NUM> is used for forming an air cavity. An air deflector <NUM> is located between a motor fan <NUM> and the inner housing <NUM> to guide an airflow to circulate between two layers of housings. In this example, the dimension of the first circuit board <NUM> in the direction perpendicular to the direction in which a motor shaft <NUM> extends is larger than the outer diameter of the motor <NUM>. The inner housing <NUM> can optimize an air path and limit the motor <NUM>.

As shown in <FIG>, a first partition <NUM> is disposed in the first housing portion <NUM>, where the first partition <NUM> is disposed on the peripheral side of the first housing portion <NUM> and formed between the motor <NUM> and the sidewall of the first housing portion <NUM>, and a certain gap exists between the first partition <NUM> and the first housing portion <NUM>. Two ends of the first partition <NUM> are not closed so that the airflow can penetrate through the preceding gap, and the first partition <NUM> functions as a flow guide. A second partition <NUM> is disposed in the second housing portion <NUM>, where the second partition <NUM> is disposed between the edge of the air inlet and the sidewall of the second housing portion <NUM> and used for increasing the pressure of intake air. A heat dissipation element may also be disposed at the air inlet. The heat dissipation element may be disposed in the second housing portion <NUM>, may be disposed outside the second housing portion <NUM>, or may be configured to pass through the air inlet. The heat dissipation element is formed with multiple fins having gaps between the fins, and an external airflow passes through the air inlet and the gaps between the fins of the heat dissipation element and enters the second housing portion <NUM>.

As shown in <FIG>, the motor shaft <NUM> rotates about the first axis <NUM>, an output end on a side of the motor shaft <NUM> is decelerated by a first gear <NUM> to drive the output shaft <NUM> to rotate about the second axis <NUM>, and the output shaft <NUM> drives the cutting member <NUM> to rotate, thereby implementing a cutting function. The first gear <NUM> forms a one-stage gear transmission with the motor shaft <NUM>. In this example, the first gear <NUM> is a helical gear. In an example, when the outer diameter of the first gear <NUM> is <NUM> inches, the gear ratio of the one-stage gear transmission is <NUM>:<NUM>. In an example, when the outer diameter of the first gear <NUM> is <NUM> inches, the gear ratio of the one-stage gear transmission is <NUM>:<NUM>.

In this example, the outer diameter of the motor <NUM> is less than or equal to <NUM>. In an example, the outer diameter of the motor <NUM> is <NUM>. It is to be noted that for the outer diameter of the motor <NUM>, when the motor <NUM> is an inner rotor motor, the outer diameter of the motor <NUM> is the stator diameter of the inner rotor motor, that is, a lamination diameter; and when the motor <NUM> is an outer rotor motor, the outer diameter of the motor <NUM> is the diameter of a rotor sleeve of the outer rotor motor. A small dimension of the motor <NUM> is conducive to the avoidance of a dimension measurement slot <NUM> of the workbench <NUM>, thereby preventing interference.

The distance between the second axis <NUM> of the output shaft <NUM> and the upper surface of the workbench <NUM> is a first distance LI. In this example, the first distance L1 is greater than or equal to <NUM> and less than or equal to <NUM>. The distance between the first axis <NUM> and the second axis <NUM> is a second distance L2, and the second distance L2 is greater than or equal to <NUM> and less than or equal to <NUM>. In an example, the second distance L2 is greater than or equal to <NUM> and less than or equal to <NUM>. In an example, the second distance L2 is greater than or equal to <NUM> and less than or equal to <NUM>. In an example, the second distance L2 is greater than or equal to <NUM> and less than or equal to <NUM>.

<FIG> disclose some examples of the display assembly <NUM>. In this example, the display assembly <NUM> of the table cutting device <NUM> is configured to be used for displaying an electric quantity of the battery pack <NUM> (referring to <FIG>) which supplies the energy source to the table cutting device <NUM>. As shown in <FIG> and <FIG>, when observed from the front side and the upper side of the table cutting device <NUM>, the display assembly <NUM> may be located at the bottom right side of the support plate <NUM> to form a first display assembly 52a; the display assembly <NUM> may be located above the switch assembly to form a second display assembly 52b; the display assembly <NUM> may be located on the workbench <NUM> and not higher than the upper surface of the workbench <NUM> to form a third display assembly 52c; and the display assembly <NUM> may be located on the upper side of the support plate <NUM> and the lower side of the workbench <NUM> to form a fourth display assembly 52d. As shown in <FIG>, the display assembly <NUM> may be located on a right plate <NUM> (referring to <FIG>) of the workbench <NUM> on the right side of the table cutting device <NUM> to form a fifth display assembly 52e; and the display assembly <NUM> may be located on a side of the power supply support member <NUM> to form a sixth display assembly 52f.

For ease of description, a standing region <NUM> as shown in <FIG> is also defined in the present application, where the standing region <NUM> is the front side and the right side of the table cutting device <NUM> and includes at least the region in a dashed box in <FIG>. The table cutting device <NUM> is disposed in a placement plane, and the placement plane may be parallel to a working plane of the workbench <NUM>. The ratio of a projection area of the standing region <NUM> on the placement plane to a projection area of the table cutting device <NUM> on the placement plane is less than or equal to <NUM>% and may particularly be less than or equal to <NUM>%. The display assembly <NUM> is disposed on any structure in the standing region <NUM> so that the content indicated by the display assembly <NUM> can be more easily observed when the user stands on the front side of the table cutting device <NUM> and places the workpiece. In other examples, the standing region <NUM> may be defined as a region enclosed from the edge of the cutting member <NUM> to the edge of the table cutting device <NUM> and includes all structures within the region. Specifically, the support plate <NUM> is disposed in the standing region <NUM> and disposed mainly below the workbench assembly <NUM> and between vertical support rods and horizontal support rods, and the display assembly <NUM> is disposed on the support plate <NUM>. Specifically, the display assembly <NUM> may be disposed in a portion of the workbench assembly <NUM> located in the standing region <NUM>.

Specific implementations of the first display assembly 52a, the second display assembly 52b, and the third display assembly 52c are described in detail below.

As shown in <FIG>, in this example, the housing of the power supply support member <NUM> includes a first housing <NUM>, a second housing <NUM>, and a third housing <NUM>. The second housing <NUM> and the third housing <NUM> may be connected to form an L-shaped structure. The third housing <NUM> is connected to the switch assembly <NUM>. A first wire harness <NUM> of the switch assembly <NUM> is wrapped by the first housing <NUM>, the second housing <NUM>, and the third housing <NUM>. One end of the first wire harness <NUM> is connected to the switch assembly <NUM>, the other end of the first wire harness <NUM> is connected to the first circuit board <NUM> in the mounting housing <NUM>, and the first wire hardness <NUM> passes through an opening <NUM> in the second housing <NUM> halfway. An exposed portion of the first wire harness <NUM> between the first housing <NUM> and the mounting housing <NUM> is wrapped by a protective tube <NUM>.

An implementation of the first display assembly 52a shown in <FIG> is disclosed in <FIG>. The power supply connection assembly <NUM> further includes a wire harness storage housing <NUM>. The first wire harness <NUM> is arranged along the rear side of the support plate <NUM>. After the first wire harness <NUM> extends out of the third housing <NUM>, the first wire harness <NUM> passes through the wire harness storage housing <NUM> and finally reaches the first display assembly 52a. The wire harness storage housing <NUM> is fixed to the support plate <NUM> by screws.

An implementation of the second display assembly 52b shown in <FIG> is disclosed in <FIG>. In conjunction with <FIG>, the third housing <NUM> is fixed to a stringer <NUM>, and two ends of the stringer <NUM> are separately fixed to two support rods <NUM> which are both located on the front side of the table cutting device <NUM>. The second display assembly 52b is located at the top left side of the support plate <NUM> and specifically disposed on the stringer <NUM>.

An implementation of the third display assembly 52c shown in <FIG> is disclosed in <FIG>. A transparent display window is disposed on the workbench <NUM>, and the third display assembly 52c is "embedded" in the transparent display window. The display window is substantially flush with the upper surface of the workbench <NUM>. If the display window is lower than the upper surface of the workbench <NUM>, the distance between the display window and the upper surface of the workbench <NUM> is less than or equal to <NUM>. In this case, the presence of the display window does not affect the movement of the workpiece on the workbench <NUM>, and generated wood chips and the like are not easily stuck in the display window. The third display assembly 52c may be mounted to the lower surface of the workbench <NUM> by a screw.

Different structures which may form the display assembly <NUM> are further disclosed in <FIG>.

As shown in <FIG>, the first display assembly 52a includes a light-emitting portion <NUM>, a function portion <NUM>, a support housing <NUM>, and a second circuit board <NUM>. The light-emitting portion <NUM> is used for indicating the electric quantity of the battery pack <NUM>. In an example, the light-emitting portion <NUM> may include multiple indicator bars 521a and expresses different information through the number of indicator bars 521a which emit light. Specifically, an indicator bar 521a may be a light-emitting diode (LED) light. In other examples, the light-emitting portion <NUM> may include only one indicator bar 521a and displays different information through different light emission lengths of the indicator bar 521a. In this example, the light-emitting portion <NUM> displays the remaining electric quantity (that is, an available electric quantity) of the battery pack <NUM>. The light-emitting portion <NUM> may display different information through flashing. For example, a relatively slow flicker speed indicates that it is recommended to replace the battery pack <NUM>, and a relatively fast flicker speed indicates that the electric quantity of the battery pack <NUM> is about to be used up. In an example, the light-emitting portion <NUM> may express different information through different numbers of flickering indicator bars 521a. For example, four indicator bars 521a flashing, which indicates that the voltage of the battery pack <NUM> is too low, and two indicator bars 521a flashing, which indicates that the temperature of the battery pack <NUM> is too high.

As shown in <FIG>, in an example, no housing covers the top of the light-emitting portion <NUM>, that is to say, when standing and looking down, the operator can still see the light of the light-emitting portion <NUM> clearly without bending, squatting, and other actions.

In an example, at least one function portion <NUM> is also provided on the first display assembly 52a. In this example, when the operator activates the function portion <NUM>, the light-emitting portion <NUM> is caused to display the electric quantity information of the battery pack <NUM>. The light-emitting portion <NUM> is on for several seconds and then turns off so that the electric quantity information disappears. As shown in <FIG>, the function portion <NUM> may be located on two sides of the light-emitting portion <NUM> or above the light-emitting portion <NUM> in addition to the lower side of the light-emitting portion <NUM>. In an example, the function portion <NUM> and the light-emitting portion <NUM> of the fourth display assembly 52d are separated from each other. In an example, the distance between the function portion <NUM> and the light-emitting portion <NUM> is greater than or equal to <NUM>. For example, in the third display assembly 52c, the light-emitting portion <NUM> may be embedded in the workbench <NUM>, and the function portion <NUM> may be disposed on the support plate <NUM> on the front side of the workbench or at a position around the support plate <NUM> for the operator to operate the function portion <NUM> conveniently. In this case, the distance between the function portion <NUM> on the first display assembly 52a and the light-emitting portion <NUM> on the first display assembly 52a is greater than or equal to <NUM> or even greater than or equal to <NUM>. In one example, the function portion <NUM> could be a key or button.

In an example, the first display assembly 52a does not include the function portion <NUM>. As soon as the battery pack <NUM> having power is inserted into the table cutting device <NUM>, the light-emitting portion <NUM> is in an activated state and the electric quantity information is always displayed.

As shown in <FIG>, the third display assembly 52c is another structural form of the display assembly <NUM>. The support housing <NUM> is composed of a cover plate <NUM> and a rear housing <NUM>, the second circuit board <NUM> is fixed to the rear housing <NUM> by a screw, the light-emitting portion <NUM> passes through the cover plate <NUM>, and light partition plates are disposed on the cover plate <NUM> to partition light rays. Fastening screws <NUM> fix the cover plate <NUM> and the rear housing <NUM> together, and additional screws pass through positioning holes <NUM> on the rear housing <NUM> to fix the third display assembly 52c at a desired position.

Referring to <FIG> again, a front portion <NUM>, a rear portion <NUM>, a right portion <NUM>, and an upper portion <NUM> of the table cutting device <NUM> are now defined. The front portion <NUM> refers to all components of the table cutting device <NUM> which can be seen when observed from the direct front of the table cutting device <NUM>. The rear portion <NUM> is opposite to the front portion <NUM>. The right portion <NUM> refers to all components of the table cutting device <NUM> which can be seen when observed from the direct right of the table cutting device <NUM>, and the right portion <NUM> connects the front portion <NUM> to the rear portion <NUM>. The upper portion <NUM> refers to all components of the table cutting device <NUM> which can be seen when observed directly above the table cutting device <NUM>. In this example, the front portion <NUM> of the table cutting device <NUM> includes the support plate <NUM>, the switch assembly <NUM>, the adjustment mechanism <NUM>, and the front edge of the workbench <NUM>. The right portion <NUM> of the table cutting device <NUM> includes the right plate <NUM> of the workbench <NUM>, support rods <NUM> on the right side, base members <NUM> on the right side, the right surface of a workpiece support fence <NUM>, a right visible region of the second housing portion <NUM>, and a right visible region of the power supply connection assembly <NUM>. The upper portion <NUM> of the table cutting device <NUM> includes the upper surface of the workbench <NUM>, the upper surface of the workpiece support fence <NUM>, and the like.

The display assembly <NUM> is at least partially disposed on the front portion <NUM>, the rear portion <NUM>, the right portion <NUM>, or the upper portion <NUM> of the table cutting device <NUM>. In an example, the light-emitting portion <NUM> of the display assembly <NUM> and the function portion <NUM> of the display assembly <NUM> may be located at two different portions among the front portion <NUM>, the rear portion <NUM>, the right portion <NUM>, and the upper portion <NUM> of the table cutting device <NUM>, separately.

The present application has the following beneficial effect: when the operator operates the table cutting device <NUM>, in order to know the electric quantity information of the battery pack <NUM>, the operator does not need to bend and press an electric quantity display button on the battery pack <NUM> and can easily observe the electric quantity information at a standing position. Various examples are provided by the present application so that it is convenient for the operator to see the electric quantity of the battery pack <NUM> clearly at a glance when standing at different positions. The example in which the light-emitting portion <NUM> and the function portion <NUM> are separated from each other further facilitates the operation of the operator and the operator can activate, with one key, the light-emitting portion embedded in the surface of the workbench, which is very convenient.

The distance between the display assembly <NUM> disclosed by the present application and the battery pack <NUM> mounted on the table cutting device <NUM> is greater than or equal to <NUM>. It is to be noted that some battery packs themselves include electric quantity display mechanisms, and such electric quantity display mechanisms are disposed on the battery packs, belong to a common technique, and therefore do not fall within the scope of the present application. However, the distance between the display assembly <NUM> involved in the present application and the battery pack <NUM> is at least <NUM>, which is not contradictory to the case where the battery pack <NUM> has its own electric quantity display. That is to say, the table cutting device <NUM> may include both the display assembly <NUM> disclosed by the present application and an electric quantity display mechanism of the battery pack <NUM>. In an example, when the battery pack <NUM> is mounted to the table cutting device <NUM>, the distance between the display assembly <NUM> and the battery pack <NUM> may be at least <NUM>, <NUM>, or <NUM>.

Claim 1:
A table cutting device (<NUM>), comprising:
a workbench (<NUM>) on which a workpiece is placed;
a cutting assembly (<NUM>) capable of performing a cutting operation on the workpiece;
a drive assembly (<NUM>) comprising a motor (<NUM>) and driving the cutting assembly (<NUM>) to move; and
a power supply connection assembly (<NUM>) for connecting a battery pack (<NUM>), wherein the battery pack (<NUM>) supplies an energy source to the table cutting device (<NUM>);
wherein the table cutting device (<NUM>) further comprises:
a display assembly (<NUM>) capable of displaying an electric quantity of the battery pack (<NUM>), wherein when the battery pack (<NUM>) is mounted to the table cutting device (<NUM>), a distance between the display assembly (<NUM>) and the battery pack (<NUM>) is greater than or equal to <NUM>,
characterized in that,
the table cutting device (<NUM>) comprises a front portion (<NUM>), wherein the front portion (<NUM>) comprises at least a support plate (<NUM>), and a scale rail (<NUM>) capable of displaying a height of the cutting assembly (<NUM>) is disposed on the support plate (<NUM>),
wherein the display assembly (<NUM>) is located on the front portion (<NUM>) of the table cutting device (<NUM>) or wherein the display assembly (<NUM>) is disposed on the support plate (<NUM>).