Patent ID: 12202060

wherein,1—fly-cutter plate body,2—counterbore,3—positioning hole,4—positioning groove,5—combination groove,6—adjusting block for rake angle and relief angle,7—first fastener,8—first through hole,9—first threaded hole,10—second fastener,11—second through hole,12—second threaded hole,13—first mounting groove,14—adjustment block for tool cutting edge angle and minor cutting edge angle,15—third fastener,16—first positioning hole,17—second positioning hole,18—mating groove,19—adjusting groove for tool cutting edge angle and minor cutting edge angle,20—third threaded hole,21—second mounting groove,22—adjusting block for tool cutting edge inclination angle,23—fourth fastener,24—adjusting groove for cutting edge inclination angle,25—fourth threaded hole,26—tool sliding groove,27—cutter handle,28—fifth fastener,29—magnet,30—fifth threaded hole,31—adjusting cushion block,32—graduated scale.

DETAILED DESCRIPTION

It should be pointed out that the following detailed descriptions are all illustrative and are intended to provide further descriptions of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those usually understood by a person of ordinary skill in the art to which the present invention belongs.

It should be noted that the terms used herein are merely used for describing specific implementations, and are not intended to limit exemplary implementations of the present disclosure. As used herein, the singular form is also intended to include the plural form unless the context clearly dictates otherwise. In addition, it should further be understood that, terms “comprise” and/or “include” used in this specification indicate that there are features, steps, operations, devices, components, and/or combinations thereof.

For convenience of description, the “above”, “below”, “left”, and “right” only indicate directions consistent with those of the accompanying drawings, are not intended to limit the structure, and are used only for ease and brevity of illustration and description, rather than indicating or implying that the mentioned device or element must have a particular orientation or must be constructed and operated in a particular orientation. Therefore, such terms should not be construed as a limitation on the present invention. In addition, the terms “first”, “second” are merely used for describing purposes, and should not be construed as indicating or implying relative importance.

Explanation of terms: the terms “installed”, “jointed”, “connected”, “fixed” and other terms in this application shall be understood in a broad sense. For example, they can be fixed connection, removable connection or integrated. They can be directly connected or indirectly connected through an intermediate medium. They can be the internal connection of two elements, or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the invention can be understood according to the specific situation.

Example 1

This embodiment provides a milling machine fly-cutter with adjustable cutting-tool geometric angle, as shown inFIG.1andFIG.2. The fly-cutter includes a fly-cutter plate body1, an adjusting assemblies and a cutter handle27. A plurality of the adjusting assemblies is evenly set with intervals along the circumferential direction of the fly-cutter plate body1, and the cutter handle27is connected with the adjusting assemblies. The adjustments of a rake angle, a relief angle, a tool cutting edge angle, a minor cutting edge angle and a tool cutting edge inclination angle of the milling machine fly-cutter are realized by the adjusting assemblies. And the adjusting assemblies are able to adapt to the cutter handles27of different specifications.

Further, the adjusting assemblies include an adjusting block for rake angle and relief angle6, an adjusting block for tool cutting edge angle and minor cutting edge angle14and an adjusting block for tool cutting edge inclination angle22. The adjusting block for tool cutting edge inclination angle22is connected with the adjusting block for rake angle and relief angle6by the adjusting block for tool cutting edge angle and minor cutting edge angle14. The adjusting block for rake angle and relief angle6is connected with the fly-cutter plate body1.

Specifically, an bottom end face (taking the position of the fly-cutter in operation as the reference) of the fly-cutter plate body1is provided with a counterbore2being used for the connection for the fly-cutter plate body1and the milling machine spindle. A center of the fly-cutter plate body1is provided with a central positioning hole3. The central positioning hole3is used to position the center of the fly-cutter plate body1mounted in the milling machine spindle, so that the center of the fly-cutter plate body1and the center of the milling machine spindle are along the same axle. A top end face of the fly-cutter plate body1is provided with a positioning groove4, and the positioning groove4is used to position the fly-cutter plate body1horizontally when it is mounted on the milling machine spindle, so that the fly-cutter plate body1is parallel to the milling machine table.

In the embodiment, four combination grooves5are provided in the circumferential direction of the fly-cutter plate body1. Axes of adjacent combination grooves5form an included angle of 90°, and axes of two adjacent combination grooves5set opposite to each other are along the same axle. It is understood that in other embodiments, combination grooves5can also be provided in other amount, depending on the number of cutter handles27installed on the fly-cutter plate.

Further, the combination groove5is provided inward along a bottom of the fly-cutter plate body1, and a cross-section of the combination groove5is formed by a joint connection of a V-shaped section and a circular arc section, and the link up position of the V-shaped section and the circular arc section is in the middle.

The adjusting block for rake angle and relief angle6is placed in the combination groove5, as shown inFIG.3. The adjusting block for rake angle and relief angle6is cylindrically shaped in order to facilitate positioning. A first mounting groove13is set on a first side of the adjusting block6for installing the adjusting block for tool cutting edge angle and minor cutting edge angle14, and an outer wall of a second side of the adjusting block for rake angle and relief angle6is fitted with a surface of the V-shaped section of the combination groove5for central positioning.

Further, a first threaded hole9is provided at a first end of the adjusting block for rake angel and relief angle6. Taking an end of the combination groove5located on the outer side of the fly-cutter plate body1as a front end face, the first threaded hole9is provided at a rear end face of the adjusting block for rake angle and relief angle6. The first threaded hole9corresponds to a first through hole8provided in the counterbore2in the fly-cutter plate body1, and the first through hole8is connected with the first threaded hole9by a first fastener7.

In the embodiment, the first fastener7is a fitting screw, and the fitting screw cooperates with the first threaded hole9through the first through hole8to press the adjusting block for rake angle and relief angle6on the rear end face of the combination groove5, realizing limited positioning of the adjusting block for rake angle and relief angle6along the axial direction. Therefore, axial displacement is effectively prevented for the adjusting block6for rake angle and relief angle, no matter in the case of rotating the adjusting block for rake angle and relief angle6to adjust the angle, or in the case that the milling machine fly-cutter is rotating and milling, ensuring milling accuracy of the milling machine fly-cutter.

Further, an inner wall of the side of the combination grooves5is provided with a second threaded hole12, and the second threaded hole12is connected with a second through hole11, and a second fastener10installed in the second through hole11limits the position of the side of the adjusting block for rake angle and relief angle6.

In the embodiment, the second fastener10is a fitting screw, and the fitting screw cooperates with the second threaded hole12to fasten the adjusting block for rake angle and relief angle6in the combination groove5by pressing an outer cylindrical surface of the adjusting block for rake angle and relief angle6. When the rake angle and the relief angle of the cutting tool need to be adjusted, loosen the fitting screw, rotate the adjusting block for rake angle and relief angle6to an appropriate angle, and then tighten the fitting screw.

The adjusting block for rake angle and relief angle6is able to rotate at a certain angle with the center line of its outer cylindrical surface as axis, and when rotating to a suitable angle, fasten the adjusting block for rake angle and relief angle6with the first fastener7and the second fastener10. When the adjusting block for rake angle and relief angle6is rotating, the cutter handle27mounted on it rotates by a corresponding angle, changing the rake angle and the relief angle of the cutting tool.

Preferably, a cross-section of the first mounting groove13is approximately semicircular, and the adjusting block for tool cutting edge angle and minor cutting edge angle14is set in the first mounting groove13and is fastened by a third fastener15. The adjusting block for tool cutting edge angle and minor cutting edge angle14is able to rotate to the desired angle on the adjusting block for rake angle and relief angle6on an axis of the center line of its outer arc surface, and is fastened and positioned by the third fastener15. When the adjusting block for tool cutting edge angle and minor cutting edge angle14rotates, the cutter handle27mounted on it rotates by a corresponding angle, changing the tool cutting edge angle and the minor cutting edge angle of the cutting tool.

In the embodiment, the third fastener15is divided into two kinds: a locating pin and a fitting screw. The locating pin is used for the rotation of the adjusting block for tool cutting edge angle and minor cutting edge angle14around its center line, and the fitting screw is used for the fastening of the adjusting block for tool cutting edge angle and minor cutting edge angle14.

As shown inFIG.3, a side of the adjusting block for rake angle and relief angle6opposite to the second threaded hole12on the fly-cutter plate body1is provided with a first positioning hole16. A second positioning hole17corresponding to the second positioning hole16is provided in a center of a side of the adjusting block for tool cutting edge angle and minor cutting edge angle14. The positioning pin is matched with the first positioning hole16and the second positioning hole17to position the adjusting block for tool cutting edge angle and tool minor cutting edge14.

Further, the adjusting block for rake angle and relief angle6is provided with mating grooves18on the same side of the first positioning hole16. In the present embodiment, the mating groove18is provided on both sides of the first positioning hole16. Preferably, the mating groove18is a square groove.

An inside surface of the mating groove18is provided with an adjusting groove for tool cutting edge angle and minor cutting edge angle19, being an arc-shaped groove, and the two adjusting grooves for tool cutting edge angle and minor cutting edge angle19bend towards the side close to each other. The fitting screw cooperates with the third threaded hole20on the side of the adjusting block for tool cutting edge angle and minor cutting edge angle14through the adjusting groove for tool cutting edge angle and minor cutting edge angle19, to fix the adjusting block for tool cutting edge angle and minor cutting edge angle14to the adjusting block for rake angle and relief angle6. When the tool cutting edge angle and minor cutting edge angle need to be adjusted, loosen the fitting screw, rotate the adjusting block for tool cutting edge angle and minor cutting edge angle14to the appropriate angle, and then tighten the fitting screw.

As shown inFIG.4, the adjusting block for tool cutting edge angle and minor cutting edge angle14is of a semi-cylindrical shape, and a first side of the semi-cylindrical surface is adapted to the first mounting groove13. A second side of the adjusting block for tool cutting edge angle and minor cutting edge angle14is of a rectangular plane, and a second mounting groove21for mounting the adjusting block for tool cutting edge inclination angle is set in the rectangular plane.

In the present embodiment, the second mounting groove21is a cylindrical groove. A fourth threaded hole25is provided in an eccentric position of the second mounting groove21. The second positioning hole17and the third threaded hole20are provided on a first side of the end face of the adjusting block for tool cutting edge angle and minor cutting edge angle14, and the third threaded hole20is provided symmetrically on both sides of the second positioning hole17.

Further, as shown inFIG.5, the adjusting block for tool cutting edge inclination angle22includes a mating part and a tool mounting part, and a shape of the mating part is adapted to the second mounting groove21. An adjusting groove for tool cutting edge inclination angle24is set on an edge position of the mating part. In the embodiment, two adjusting grooves for tool cutting edge inclination angle24are set symmetrically. The two adjusting grooves for tool cutting edge inclination angle24are curved grooves, and bend towards the side where the two adjusting grooves24are close to each other.

The adjusting groove for tool cutting edge inclination angle24is connected to the fourth treaded hole25by a fourth fastener23. Preferably, the fourth fastener23is a fitting screw. The adjusting block for tool cutting edge inclination angle22is fastened with the adjusting block for tool cutting edge angle and tool cutting edge minor angle14through the fitting screw. When the tool cutting edge inclination angle needs to be adjusted, loosen the fitting screw, rotate the adjusting block for tool cutting edge inclination angle22to the working position, and tighten the fitting screw.

Further, the tool mounting part is composed of two symmetrically arranged mounting plates, and a tool sliding groove26is formed between the two mounting plates. In the present embodiment, the mounting plate is a rectangular plate and the tool sliding groove26is a U-shaped groove. It is understood that in other embodiments, the mounting plate may also be of other shapes.

The cutter handle27is mounted in the tool sliding groove26and is fastened by a fifth fastener28. In the present embodiment, an upper face and a first side of the tool sliding groove26are provided with a magnet29, and the cutter handle27is attached to the tool sliding groove26through the magnetic force, so as to fix and adjust the cutter handle27in the tool sliding groove26. Fifth threaded holes30are provided on a second side of the tool sliding groove26.

In the present embodiment, the fifth fasteners28are fitting screws cooperating with the fifth threaded hole30to press on a first side of the end face of the cutter handle27to fixing the cutter handle27. When a machining range of the cutting tool needs to be adjusted, loosen the fitting screw, move the cutter handle27along the length direction of the tool sliding groove26for position adjustment, then tighten the fitting screw. In addition, when it is necessary to replace the cutter handle27of different specifications, loosen the fitting screw, add a corresponding adjusting cushion block31, and fix the cutter handle27in the tool sliding groove26by tightening the fitting screw.

Further, the front end face of the adjusting block for rake angle and relief angle6, outer circumference surface of the adjusting block for tool cutting edge angle and minor cutting edge angle14and the outer circumference surface of the adjusting block22for tool cutting edge inclination angle are provided with a graduated scale32to indicate the respective rotation angles of the adjusting block for rake angle and relief angle6, the adjusting block for tool cutting edge angle and minor cutting edge angle14and the adjusting block for tool cutting edge inclination angle22, so as to continuously adjust the rake angle, the relief angle, the tool cutting edge angle, the minor cutting edge angle and the tool cutting edge inclination angle of the cutting tool.

Example 2

The embodiment provides a milling machine comprising the milling machine fly-cutter described in Embodiment 1, and the milling machine fly-cutter is connected to a milling machine spindle.

The foregoing descriptions are merely preferred embodiments of the present invention, but not intended to limit the present invention. A person skilled in the art may make various alterations and variations to the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.