Sawing machine

The disclosure provides a sawing machine, including: a base; a main workbench rotatably connected to the base, an upper surface of the main workbench being provided with a chute, the chute extending in a first direction; a machine body slidably connected to the main workbench, a sliding direction of the machine body being parallel to the first direction, the machine body being provided with a motor and a saw blade connected to the motor; an auxiliary workbench being slidably inserted into the chute and protruded out of the chute from an open end, an upper surface of the auxiliary workbench is provided with an elongated groove, the groove extends in the first direction, the groove and the chute are in communication in the first direction and form an extendable saw blade slot. In the present disclosure, the cutting distance of the sawing machine can be extended, without increasing the overall volume of the sawing machine, increasing the packaging size, and increasing the transportation cost.

TECHNICAL FIELD

The disclosure relates to the technical field of sawing tools, in particular to a sawing machine.

BACKGROUND

A sawing machine is a commonly used sawing tool. A cutting distance of a traditional sawing machine depends on a diameter of a saw blade. In order to extend the cutting distance without changing the saw blade specification, a sliding sawing machine has been developed currently, which obtains a longer cutting distance by moving a machine body mounted with the saw blade forward and backward relative to a workbench. However, because a saw blade slot on the workbench is required to be cooperated with the saw blade during cutting, the workbench must be increased synchronously to make a length of the saw blade slot on the workbench meet a requirement of the cutting distance. However, an increase in the size of the workbench may result in an increase in the overall volume of the sawing machine, which means a larger packaging size, a higher transport cost and a lower transport effect.

SUMMARY

An object of the present disclosure is to provide a sawing machine for solving the problem existing in the prior art that an extended cutting distance results in an increase in the overall volume of the sawing machine.

In order to achieve the above object, there is provided in the present disclosure a sawing machine including: a base, a main workbench, wherein the main workbench is rotatably connected to the base, an upper surface of the main workbench is provided with a chute, and the chute extends in a first direction and has an open end on an outer side surface of the main workbench; a machine body, wherein the machine body is slidably connected to the main workbench, a sliding direction of the machine body is parallel to the first direction, and the machine body is provided with a motor and a saw blade connected to the motor; an auxiliary workbench, wherein the auxiliary workbench is in an elongated shape and capable of slidably inserting into the chute and protruding out of the chute from the open end, an upper surface of the auxiliary workbench being provided with an elongated groove, the groove extends in the first direction, the groove and the chute are in communication in the first direction and form an extendable saw blade slot, the saw blade slot is elongated by sliding the auxiliary workbench toward outside of the chute, and the saw blade slot is shortened by sliding the auxiliary workbench toward inside of the chute.

In the present disclosure, the main workbench and the auxiliary workbench constitute a split-in workbench, and the chute and the groove constitute a split-in saw blade slot. The length of the overlapped portion of the chute and the groove is reduced by sliding the auxiliary workbench toward the outside of the chute, thereby increasing the length of the saw blade slot. The length of the overlapped portion of the chute and the groove is increased by sliding the auxiliary workbench toward inside of the chute, thereby decreasing the length of the saw blade slot. In actual use, the length of the saw blade slot is adjusted according to the required cutting distance, which is flexible and convenient. In the present disclosure, the saw blade slot can be used as long as the maximum length of the saw blade slot after being extended can reach the requirement of the maximum cutting distance, and it is not necessary to increase the main workbench to meet the requirement of increasing the cutting distance. When in packaging or transportation, the auxiliary workbench is slided into the chute to shorten the saw blade slot to a minimum length, or the auxiliary workbench is detached from the main workbench. Therefore, in the present disclosure, the cutting distance of the sawing machine can be extended, without increasing the overall volume of the sawing machine, increasing the packaging size, and increasing the transportation cost.

DESCRIPTION OF EMBODIMENTS

For a clearer understanding of the technical features, objects and effects of the present disclosure, specific embodiments of the present disclosure will now be described with reference to the accompanying drawings. The use of adjective or adverbial modifiers “center”, “upper” and “lower,” “top” and “bottom,” “inner” and “outer” is merely intended to facilitate relative reference between multiple groups of terms and is not intended to describe any particular direction limitations to a modified term. In addition, that terms “first,” “second,” etc. are used for descriptive purpose only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, whereby features defined with “first,” “second,” etc. may explicitly indicate or implicitly include one or more of the features. In the description of the present disclosure, “multiple” means two or more, unless otherwise indicated. For convenience of description, a surface of the main workbench that faces the saw blade is referred to as an upper surface of the main workbench, and a surface of the auxiliary workbench that faces the saw blade is referred to as an upper surface of the auxiliary workbench.

As shown inFIG. 1andFIG. 3, there is provided in the present disclosure a sawing machine which is a sliding sawing machine, comprising a base100, a main workbench200, a machine body300and an auxiliary workbench400. The base100may be placed on a supporting surface such as an operating table. The main workbench200may be rotatably connected to the base100. For example, the main workbench200and the base100are pivotally connected, wherein the specific structure of the base100and the connection structure of the main workbench200and the base100are well-known techniques, and thus are not described here in detail.

The upper surface of the main table200is provided with an elongated chute201. The chute201extends in a first direction F, or a length direction of the chute201is the first direction F. The chute201has an open end2011located on an outer side of the main workbench200. For example, the chute201extends from the center of the main workbench200to an outer side surface at a side of the main workbench200. The machine body300is slidably connected to the main workbench200. The sliding direction of the machine body300is parallel to the first direction F. The machine body300is provided with a motor500and a saw blade600connected to the motor500. The saw blade600can be driven by the motor500to rotate, so as to cut workpieces. The machine body300can drive the saw blade600to slide back and forth in the first direction F, and the cutting distance of the saw blade600is extended by the sliding of the machine body300.

The auxiliary workbench400has an elongated shape, and is slidably inserted into the chute201, that is, the auxiliary workbench400is disposed in the first direction F and is capable of sliding back and forth along the chute201(that is, in the first direction F). The auxiliary workbench400can extend out of the chute201from the open end2011. The upper surface of the auxiliary workbench400is provided with an elongated groove401. The groove401extends in the first direction F, so as to be capable of cooperating with the saw blade600that moves in the first direction F. The groove401and the chute201are in communication in the first direction F and form an extendable saw blade slot which is located directly below the saw blade600. The saw blade slot is elongated by sliding the auxiliary workbench400toward outside of the chute201, and the saw blade slot is shortened by sliding the auxiliary workbench400toward inside of the chute201.

In the present disclosure, the main workbench200and the auxiliary workbench400constitute a split-in workbench, and the chute201and the groove401constitute a split-in saw blade slot. The length of the overlapped portion of the chute201and the groove401is reduced by sliding the auxiliary workbench400toward the outside of the chute201, thereby increasing the length of the saw blade slot. The length of the overlapped portion of the chute201and the groove401is increased by sliding the auxiliary workbench400toward the inside of the chute201, thereby decreasing the length of the saw blade slot. In actual use, a workpiece to be cut is placed on the main workbench200and the auxiliary workbench400, the length of the saw blade slot is adjusted according to the required cutting distance, which is flexible and convenient. In the present disclosure, the saw blade slot can be used as long as the maximum length of the saw blade slot after being extended can reach the requirement of the maximum cutting distance, and it is not necessary to increase the main workbench200to meet the requirement of increasing the cutting distance. When in packaging or transportation, the auxiliary workbench400is slided into the chute201to shorten the saw blade slot to a minimum length, or the auxiliary workbench400is detached from the main workbench200. Therefore, in the present disclosure, the cutting distance of the sawing machine can be extended, without increasing the overall volume of the sawing machine, increasing the packaging size, and increasing the transportation cost.

Further, as shown inFIG. 1, a handle a is connected to one end of the auxiliary workbench400that extends out of the chute201, thus the auxiliary workbench400can be conveniently moved by using the handle a hold in hand.

In an embodiment, as shown inFIG. 1andFIG. 3, the machine body300has a maximum sliding distance with respect to the main workbench200, and the saw blade600has a maximum cutting width W. Herein, a sum of the maximum sliding distance and the maximum cutting width W is the maximum cutting distance of the saw machine. The maximum length of the saw blade slot is not less than the sum of the maximum sliding distance and the maximum cutting width W, such that the maximum length of the saw blade slot meets the requirement of the maximum cutting distance.

Further, the maximum length of the saw blade slot is equal to the sum of the maximum sliding distance and the maximum cutting width W, that is, the maximum length of the saw blade slot exactly meets the requirement of the maximum cutting distance, and the saw blade slot does not exceed an invalid length of the maximum cutting distance, so as to reduce the overall volume of the sawing machine.

As shown inFIG. 1andFIG. 3, further, the maximum length of the saw blade slot is the sum of the length L1of the chute201and the length L2of the groove401, that is, a limit position to which the auxiliary workbench400slides toward the outside of the chute201and a limit position to which the auxiliary workbench400slides toward the inside of the chute201are opposite ends of the chute201, respectively, such that the overall length of the chute201is fully utilized, so as to further reduce the overall volume of the sawing machine.

Further, as shown inFIG. 1andFIG. 3, the maximum cutting width W of the saw blade600is equal to the diameter of the saw blade600, so as to facilitate to extend the cutting distance, but the present disclosure is not limited to this, and the maximum cutting width may also be less than the diameter of the saw blade600, and generally the maximum cutting width of the saw blade600may be decided by a set cutting depth of the saw blade600.

Further, as shown inFIG. 1, the main workbench200is disc-shaped, and the first direction F is a radial direction of the main workbench200, but the first direction F is not limited to a specific direction that is radially inward or outward in the radial direction of the main workbench200.

Further, as shown inFIG. 1andFIG. 3, the chute201is a rectangular groove, the auxiliary workbench400is a sectional material with a rectangular section, and the groove401is a through groove penetrating through the auxiliary workbench400in the first direction F.

As shown inFIG. 3andFIG. 6, in one specific embodiment, a lower surface of the auxiliary workbench400is provided with a guide groove402, and the lower surface of the auxiliary workbench400is a surface opposite to an upper surface of the auxiliary workbench400. The guide groove402extends in the first direction F. A guide rod202is fixed on a bottom surface of the chute201, and the guide rod202is inserted into the guide groove402and can slide along the guide groove402. That is, when the auxiliary workbench400slides along the chute201, the guide rod202slides along the guide groove402, and the guide rod202and the guide groove402cooperate to serve as a guide for sliding the auxiliary workbench400, such that the auxiliary workbench400can slide in the first direction F without deviating from the first direction F. For example, the guide rod202is a T-shaped screw, and the bottom surface of the chute201is provided with a through hole206, an upper end of the guide rod202is inserted into the guide groove402, a lower end of the guide rod202passes through the through hole206, and the lower end of the guide rod202is connected with a nut207to position the guide rod202within the through hole206.

As shown inFIG. 4andFIG. 7, in another specific embodiment, the auxiliary workbench400has a hollow structure, the auxiliary workbench400has a top plate403and a bottom plate404opposite to each other, the groove401is provided on the top plate403, the groove401extends through the top plate403, and the bottom plate404is provided with a plurality of through holes405which are arranged at intervals in the first direction F. The bottom surface of the chute201is provided with an insertion hole203, one of the through holes405is aligned with the insertion hole203by sliding the auxiliary workbench400along the chute201, and the auxiliary workbench400is positioned by inserting a fixing rod204into the through hole405and the insertion hole203that are aligned. In this embodiment, the plurality of through holes405, the insertion hole203and the fixing rod204cooperate to position the auxiliary workbench400at a desired position and further prevent the auxiliary workbench400from deviating from the first direction F. For example, the fixing rod204is a T-shaped screw, and the distance between two adjacent through holes405may be set according to actual needs, for example, the distance between the two adjacent through holes405is 5 cm, and the less the distance is, the higher the adjustment accuracy of the position of the auxiliary workbench400is. For example, the bottom surface of the chute201is provided with two insertion holes203arranged at an interval along the width direction of the chute201, and the bottom plate404of the auxiliary workbench400is provided with two rows of through holes405arranged at intervals along the width direction of the bottom plate404.

As shown inFIG. 1, in one embodiment, the machine body300is slidably connected to the main workbench200by a sliding connection device700. The sliding connection device700includes at least one first drawbar710that is fixed in a cantilevered shape at a side of the main workbench200that is distal from the chute201. The length direction of the first drawrod710is parallel to the first direction F, and the machine body300is slidably connected to the first drawrod710.

In the embodiments, when the machine body300is slidably connected to the main workbench200through the first drawrod710, the maximum sliding distance of the machine body300is equal to the length of the first drawrod710.

In another embodiment, the sliding connection device700includes not only a first drawrod710but also at least one second drawrod720and a sliding base730that are connected between the first drawrod710and the machine body300. The sliding base730is slidably connected to the first drawrod710. The second drawrod720is fixed in a cantilevered shape at a side of the machine body300that is distal from the saw blade600. The length direction of the second drawrod720is parallel to the first direction F. The second drawrod720is slidably connected to the sliding base730.

In the embodiments, when the machine body300is slidably connected to the main workbench200through the first drawrod710and the second drawrod720, the maximum sliding distance of the machine body300is equal to the sum of the length of the first drawrod710and the length of the second drawrod720. By providing the first drawrod710and the second drawrod720, the sliding distance of the machine body300can be further extended as compared to providing only the first drawrod710, thereby further extending the maximum cutting distance of the sawing machine.

In addition, in the embodiments, by providing the first drawrod710, the second drawrod720and the sliding base730that are capable of sliding relative to each other, the size of the sliding connection device700can be adjusted to the minimum by sliding the second drawrod720and the sliding base730during packaging and transportation, thereby reducing the overall volume of the sawing machine, reducing the size of the package and reducing transportation costs.

However, the present disclosure is not limited to this, and the machine body300may be slidably connected to the main workbench200through a sliding connection device in the prior art.

In the embodiments, specifically, the second drawrod720is connected to the machine body300through a connecting base760(as shown inFIG. 2). The connecting base760is fixed at an end of the second drawrod720. The machine body300is rotatably connected to the connecting base760. For example, the machine body300and the connecting base760are pivotally connected, so as to rotate the machine body300towards a direction close to the saw blade slot when cutting the workpiece, such that the saw blade600cuts the workpiece.

Further, as shown inFIG. 1, the first drawrod710extends through the sliding base730in the first direction F, the second drawrod720extends through the sliding base730in the first direction F, and the second drawrod720is located above the first drawrod710.

Further, as shown inFIG. 1, the number of the first drawrods710is two, and the two first drawrods710are arranged at an interval side by side. The number of the second drawrods720is two, and the two second drawrods720are arranged at an interval side by side. However, the present disclosure is not limited thereto, the number of the first drawrod710may be one, and the number of the second drawrod720may be one.

Further, as shown inFIG. 1, a first limiting member740is provided at an end of the first drawrod710that is distal from the main workbench200to limit the sliding base730when the sliding base730slides relative to the first drawrod710. A second limiting member is provided at an end of the second drawrod720that is distal from the machine body300to limit the sliding base730when the sliding base730slides relative to the second drawrod720. Specifically, the first limiting member740is in a cover shape, which sleeves outside the end of the first drawrod710. The second limiting member750is in a cover shape, which sleeves outside the end of the second drawrod720.

Further, as shown inFIG. 1, the slide base730is provided with a first locking knob731for locking the first drawrod710and the sliding base730in the relative positions, so as to position the sliding base730at any positions during the sliding of the sliding base730.

Further, as shown inFIG. 2, the sliding base730is provided with a second locking knob732for locking the second drawrod720and the sliding base730in the relative positions, so as to position the second drawrod720at any position during the sliding of the second drawrod720.

As shown inFIG. 1, in an embodiment, the sliding connection device700is detachably connected to the main workbench200. The sliding connection device700is detached from the main workbench200during packing and transportation. The sliding connection device700and the main workbench200are separately packed during transportation, to further reduce the size of the package and reduce transportation costs.

As shown inFIGS. 1, 3, 4, 8, 9 and 10, in a specific embodiment, the sliding connection device700is detachably connected to the main workbench200through a connecting assembly800including a first connecting member810fixedly connected to the first drawrod710and a second connecting member820fixedly connected to the main workbench200. The first connecting member810includes a bottom plate811and a sleeve812provided on the bottom plate811. The axial direction of the sleeve812is parallel to the first direction F. The first drawrod710is inserted into the sleeve812along the first direction F and is inserted and fixed to the sleeve812. The bottom plate811is provided with a connecting groove813. The second connecting member820includes a housing821and a connecting hook822fixed on the housing821. The housing821is fixedly connected to the main workbench200. The connecting hook822is inserted into the connecting groove813in a second direction perpendicular to the first direction F and is inserted and fixed to the connecting groove813, so as to connect the first drawrod710and the main workbench200together, and the connecting hook822and the connecting groove813are separated when the sliding connection device700and the main workbench200are detached.

Further, as shown inFIGS. 8, 9 and 10, the housing821includes a top plate8211, and a first side plate8212and a second side plate8213that are connected at the bottom of the top plate8211and disposed at opposite sides of the top plate8211. The first side plate8212and the second side plate8213are parallel to each other. The connecting hook822is disposed on the upper surface of the top plate8211. The top plate8211is provided with an opening8214. A bottom plate811of the first connecting member810is placed on the top plate8211of the second connecting member820. A sleeve812is disposed on an upper surface of the bottom plate811of the first connecting member810. An insertion plate814is disposed on a lower surface of the bottom plate811of the first connecting member810. The insertion plate814is inserted into the housing821via an opening8214in a second direction. The second connecting member820further includes a locking assembly823for locking the insertion plate814within housing821, so as to lock the first connecting member810and the second connecting member820, and improve stability of connection between the sliding connection device700and the main workbench200.

Further, as shown inFIGS. 8, 9 and 10, the locking assembly823includes an eccentric shaft8231extending through the first side plate8212and the second side plate8213. The eccentric shaft8231is disposed in a third direction perpendicular to the first direction F and the second direction. The eccentric shaft8231has a first end82311and a second end82312that are opposite and located outside the housing821. The first end82311of the eccentric shaft8231is located outside the first side plate8212, and the first end82311is connected with a positioning pin8232, and specifically, the positioning pin8232is perpendicular to an axial direction of the first end82311of the eccentric shaft8231, and the positioning pin8232extends through the first end82311of the eccentric shaft8231. A positioning groove8215capable of being matched with the positioning pin8232is provided on the outer side surface of the first side plate8212. The second end82312of the eccentric shaft8231is located outside the second side plate8213. The second end82312of the eccentric shaft8231is connected with a handle8233inclined with respect to the second end82312. A compression spring8234is sleeved on the outside of the second end82312of the eccentric shaft8231. Opposite ends of the compression spring8234abut against outer surfaces of the handle8233and the second side plate8213, respectively. The eccentric shaft8231positions the positioning pin8232within the positioning groove8215by a restoring force of the compression spring8234, so as to limit rotation of the eccentric shaft8231. The eccentric shaft8231further has a curved eccentric section82313located inside the housing821, and specifically, the eccentric section82313is curved toward the same side of the first end82311and the second end82312of the eccentric shaft8231. An adjusting bolt815is connected onto the insertion plate814. The adjusting bolt815is disposed in the first direction F. The adjusting bolt815extends through the insertion plate814and is threadedly connected with the insertion plate814. The distance between the adjusting bolt815and the eccentric section82313is adjusted by rotating the adjusting bolt815. The positioning pin8232is disengaged from the positioning groove8215by pushing the handle8233toward the first side plate8212. After the positioning pin8232is disengaged from the positioning groove8215, the eccentric section82313is rotated in the housing821towards a direction close to the adjusting bolt815by rotating the handle8233until the eccentric section82313is pressed against the adjusting bolt815. After releasing the handle8233, the positioning pin8232is positioned within the positioning groove8215under the action of the restoring force of the compression spring8234so as to fix the insertion plate814inside the housing821, thereby locking the first connecting member810and the second connecting member820through the eccentric shaft8231, thereby improving stability of connection between the sliding connection device700and the main workbench200.

Further, as shown inFIG. 2, the housing821further includes a third side plate8216connected at the bottom of the top plate8211, the third side plate8216is located between the first side plate8212and the second side plate8213, the third side plate8216is perpendicular to the first side plate8212and the second side plate8213, and the third side plate8216is connected to the main workbench200by a bolt8217.

Further, as shown inFIG. 9, a nut816sleeves outside the adjusting bolt815, and the nut816is located on a side of the insertion plate814that faces the eccentric shaft8231. The nut816is threadedly connected to the adjusting bolt815, and the nut816abuts against the insertion plate814.

Further, as shown inFIGS. 3, 4 and 5, a receiving groove205is provided on a side of the main workbench200that is distal from the chute201, and the first connecting member810and the second connecting member820are disposed within the receiving groove205.

As shown inFIG. 1, in an embodiment, the sawing machine further includes a backup plate900connected to the base100, the backup plate900is positioned above the main workbench200, the backup plate900is perpendicular to the upper surface of the main workbench200, and the backup plate900serves as a positioning reference for the workpiece to be cut to abut.

The foregoing is merely illustrative embodiments of the disclosure and is not intended to limit the scope of the disclosure. Any equivalent changes and modifications made by those skilled in the art without departing from the concepts and principles of the present disclosure shall fall within the scope of the present disclosure. It should also be noted that the components of the present disclosure are not limited to the above-described overall application, and the technical features described in the specification of the present disclosure can be selected to be used individually or in combination according to actual needs, and therefore, the present disclosure deservedly encompasses other combinations and specific applications related to the inventive points of the present application.