Variable Chamfer Cutter

Abstract

To provide a variable chamfering cutter capable of performing chamfering at different angles and significantly reducing the processing cost. [Solution] The variable chamfer cutter includes a blade body 10 including a pivot point, a blade 20 pivoted to the pivot point of the blade body and including a processing edge 21 protruding from the blade body, and an adjustment assembly 30 that rotates about the pivot point of the blade body to pivot the blade relative to the blade body, thereby adjusting the inclination angle of the processing edge with respect to the axial direction of the blade body. By pivoting the blade relative to the blade body with the adjustment assembly and adjusting the inclination angle of the blade, the processing edge of the blade can be brought into contact with a workpiece at different angles, thereby achieving chamfering at different angles.

Description

[Technical field]

[0001] The present invention relates to a chamfer cutter, and more particularly to a variable chamfer cutter. [Background technology]

[0002] A chamfer cutter is a tool used to process and smooth out sharp corners on a workpiece.

[0003] Conventional chamfer cutters with different chamfer angles usually accommodate different chamfer angles by installing blades with different shapes. However, for users who frequently perform chamfering, they need to purchase not only many blades with different angles, but even the entire chamfer cutter to perform chamfering at different angles, which significantly increases the cost of chamfering. Summary of the Invention

[0004] The present invention has been devised to solve the problem of increased processing costs caused by the need to purchase not only blades with many different angles, but even the entire chamfer cutter when performing chamfering at different angles, and its purpose is to provide a variable chamfer cutter that can be applied to processing at different chamfer angles.

[0005] The variable chamfer cutter devised to solve the problems of the present invention is as follows: A blade body including a pivot point; A blade pivotally mounted on a pivot point of the blade body and including a processing edge protruding from the blade body; and an adjustment assembly that rotates the blade relative to the blade body about a pivot point of the blade body to adjust the inclination angle of the working edge relative to the axial direction of the blade body.

[0006] The effects obtained by the technical means of the present invention are as follows: That is, as shown in the preferred embodiment of the present invention, in the variable chamfer cutter, the blade is pivoted relative to the blade body by the adjustment assembly during use, so that the inclination angle of the cutting edge of the blade relative to the axial direction of the blade body can be adjusted, and after the inclination angle is adjusted, the blade is fixed relative to the blade body by the adjustment assembly, so that the cutting edge of the blade can contact the workpiece at different angles, thereby realizing chamfering at different angles. Therefore, since the user can perform chamfering at different angles using the variable chamfer cutter, there is no need to prepare many chamfer cutters to perform chamfering at different angles, which can greatly reduce the processing cost. [Brief description of the drawings]

[0007] [Figure 1] 1 is a perspective view of a preferred embodiment of the present invention; FIG. [Diagram 2] FIG. 2 is an exploded view of a preferred embodiment of the present invention; [Diagram 3] FIG. 2 is a plan view of a portion of a preferred embodiment of the present invention; [Figure 4] FIG. 4 is a cross-sectional view taken along line AA in FIG. [Diagram 5] FIG. 2 is a perspective view showing the appearance of a preferred embodiment of the present invention in use; [Figure 6] FIG. 2 is a plan view showing the use of a preferred embodiment of the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] As shown in FIG. 1, the variable chamfer cutter of the preferred embodiment of the present invention includes a blade body 10, a blade 20, and an adjustment assembly 30, the blade body 10 being mounted on a machine spindle, and the blade 20 and adjustment assembly 30 being mounted on the blade body 10.

[0009] As shown in FIG. 2, the blade body 10 includes a pivot point 11, and the blade 20 is pivoted to the pivot point 11 of the blade body 10. Specifically, a pivot hole is formed at the pivot point 11 of the blade body 10, and a through hole 23 is formed in the blade 20. The variable chamfer cutter includes a pivot member 40, which is a bolt, and the pivot member 40 passes through the through hole 23 and is screwed into the pivot hole of the pivot point 11, so that the blade 20 is pivotally attached to the blade body 10. The blade 20 includes a processing edge 21 protruding from the blade body 10, and the angle of the processing edge 21 of the blade 20 with respect to the axial direction of the blade body 10 is defined as the inclination angle θ, as shown in FIG. 5 and FIG. 6. Note that the adjustment assembly 30 can rotate about the pivot point 11 of the blade body 10 to pivot the blade 20 with respect to the blade body 10, thereby adjusting the inclination angle θ, or fixing the blade 20 to the blade body 10, as shown in FIG.

[0010] 2, in a preferred embodiment of the present invention, the blade body 10 includes a slide groove 12, which is formed to extend in an arc shape with the pivot point 11 as its center, and the adjustment assembly 30 is inserted into the slide groove 12 and moves along the slide groove 12 to rotate around the pivot point 11 of the blade body 10 and pivot the blade 20 relative to the blade body 10. In other embodiments, the adjustment assembly 30 may be connected to the blade 20 so as to be fixed to the blade body 10 by other connecting members such as bolts after adjusting the inclination angle θ. Even in this case, the adjustment assembly 30 can rotate around the pivot point 11 of the blade body 10 to pivot the blade 20 relative to the blade body 10 and fix the blade 20 to the blade body 10.

[0011] 2, in a preferred embodiment of the present invention, the adjustment assembly 30 includes a blade seat 31, a clamp member 32, and a pressure member 33. The blade 20 is pivoted relative to the blade body 10 by the adjustment assembly 30, or the blade 20 is fixed to the blade body 10 by being limited in movement by the adjustment assembly 30, the clamp member 32 is provided on the blade seat 31, and the pressure member 33 is driven and pressed against the clamp member 32, so that the clamp member 32 and the blade seat 31 clamp the blade body 10 and fix it to the blade body 10, and the blade 20 is limited in movement by the blade seat 31 and is similarly fixed to the blade body 10.

[0012] 2, the blade seat 31 includes a track insertion portion 311 and two clamp portions 312, and the blade seat 31 is inserted into the slide groove 12 of the blade body 10 at the track insertion portion 311, so that the blade seat 31 moves along the slide groove 12 and rotates about the pivot point 11 of the blade body 10. The two clamp portions 312 and the track insertion portion 311 are respectively disposed at opposite ends of the blade seat 31, and the two clamp portions 312 are provided so as to face each other. The blade 20 includes three cutting edges, which are interconnected to form an equilateral triangular structure, one of which is a working edge 21 and the other two cutting edges are two clamping edges 22, respectively. As shown in FIG. 3, two clamping portions 312 are respectively abutted against the two clamping edges 22 of the blade 20, so that the blade 20 can be pivoted relative to the blade body 10 by the adjustment assembly 30, as shown in FIG. 6, or when the adjustment assembly 30 is fixed relative to the blade body 10, the blade 20 can be limited in movement by the adjustment assembly 30 and fixed relative to the blade body 10 together with the adjustment assembly 30.

[0013] In addition, in the preferred embodiment, the blade 20 includes three cutting edges that are interconnected to form an equilateral triangular structure. In actual use, one of the cutting edges is a working edge 21, and the other two cutting edges are two clamping edges 22. In other embodiments, the blade 20 may have other shapes as long as it includes a working edge 21 protruding from the blade body 10. The advantage of the preferred embodiment is that when one of the cutting edges, which is the working edge 21, wears out after a certain period of processing, the blade 20 can be reattached, and the other cutting edge, which was originally the clamping edge 22, can be used as a new working edge 21, so that the blade 20 can be fully utilized.

[0014] In a more preferred embodiment, the two clamping parts 312 clamp the two clamping edges 22 of the blade 20 having a triangular structure, so that the blade 20 can be pivoted relative to the blade body 10 by the adjustment assembly 30, or the blade 20 can be fixed relative to the blade body 10 by restricting its movement by the adjustment assembly 30. In other embodiments, the blade 20 and the adjustment assembly 30 may be connected by a screw structure, a lock structure, or other methods, which can similarly achieve the effect that the blade 20 is moved or restricted by the adjustment part 30. The advantage of the more preferred embodiment is that the blade 20 and the adjustment assembly 30 can be easily separated, so that replacement or repair is easy when the blade 20 or the adjustment assembly 30 is damaged.

[0015] As shown in FIG. 2, in a more preferred embodiment, the blade body 10 further includes an auxiliary groove 13 and a positioning protrusion 14, the auxiliary groove 13 is formed to extend in the same direction as the slide groove 12 at a distance from the slide groove 12, the positioning protrusion 14 is provided between the auxiliary groove 13 and the slide groove 12, the blade seat 31 includes an insertion hole 313, and the insertion hole 313 is formed along the direction from the track insertion part 311 toward the two clamp parts 312. As shown in FIG. 4, the clamp member 32 is inserted into the insertion hole 313 and inserted into the auxiliary groove 13, so that the clamp member 32 can be moved along the auxiliary groove 13 to rotate together with the blade seat 31 around the pivot point 11 of the blade body 10 as an axis. The compression member 33 is a set screw, and the blade seat 31 has a screw hole extending from the top of the blade seat 31 to the insertion hole 313.

[0016] 4, when the pressure member 33 is screwed into the screw hole and continues to rotate and is pressed downward against the clamp member 32, the clamp member 32 clamps the positioning protrusion 14 of the blade body 10 together with the track insertion portion 311 of the blade seat 31, thereby fixing the clamp member 32 to the blade seat 31 and the blade body 10, and the blade 20 is also restricted in movement by the blade seat 31 and fixed to the blade body 10. When the pressure member 33 rotates in the opposite direction and moves upward, the clamp member 32 and the blade seat 31 no longer clamp the positioning protrusion 14, and thus the blade seat 31 can again rotate about the pivot point 11 of the blade body 10, thereby pivoting the blade 20 relative to the blade body 10.

[0017] As described above, in a more preferred embodiment, the adjustment assembly 30 clamps the blade body 10 by combining the clamp member 32 and the pressure member 33 with the blade seat 31, and after adjusting the inclination angle θ of the cutting edge 21 of the blade 20, the adjustment assembly 30 is fixed to the blade body 10 to restrict the movement of the blade 20, so that the blade 20 is also fixed to the blade body 10 and cannot pivot, so that the inclination angle θ is maintained unchanged after adjustment. In another embodiment, the blade body 10 may be formed with a plurality of fixing screw holes, which are formed in an arc shape with the pivot point 11 of the blade body 10 as the center of the circle, so that after adjusting the inclination angle θ, a bolt is passed through the adjustment assembly 30 and screwed into the one fixing screw hole, thereby obtaining the effect of maintaining the inclination angle θ unchanged after adjustment. An advantage of the more preferred embodiment is that by using the method of clamping the blade body 10, the adjustment range of the inclination angle θ can be freely adjusted without being limited to a few fixed angles as in the above-mentioned method using fixing screw holes and bolts. Specifically, the inclination angle θ shown in Figure 6 can be adjusted in the range from 0° to 90°.

[0018] As shown in Fig. 2, in a more preferred embodiment, the blade body 10 further includes a plurality of angle indicating units 15, which are provided on the top surface of the blade body 10 and arranged along the auxiliary groove 13, i.e., in an arc shape with the pivot point 11 of the blade body 10 as the center, and are equally spaced apart. The adjustment assembly 30 further includes an alignment unit 34, which is aligned with one of the angle indicating units 15 as the adjustment assembly 30 rotates around the pivot point 11 of the blade body 10. Thus, when the inclination angle θ between the processing edge 21 of the blade 20 and the axial direction of the blade body 10 is adjusted by rotating the adjustment assembly 30, the magnitude of the currently adjusted inclination angle θ can be indicated, which improves the convenience of use.

[0019] In a more preferred embodiment, the plurality of angle indicating units 15 are a plurality of scales engraved on the top surface of the blade body 10, and the alignment unit 34 is a single scale engraved on the top of the blade seat 31. In another embodiment, the plurality of scales may be a plurality of protrusions or a plurality of tapes, and may be provided on the positioning protrusion or other positions that can be observed by the user. The alignment unit 34 may be a protrusion, a tape, a pointer, or other means for aligning the angle indicating unit 15, or may be used as a reference for directly aligning one of the blade edges of the blade 20 with the angle indicating unit 15 without providing the alignment unit 34. As long as the plurality of angle indicating units 15 can be provided on the blade body 10 to indicate the magnitude of the inclination angle θ of the processing edge 21 of the blade 20 when the adjustment assembly 30 rotates, the means is not limited to the more preferred embodiment of the present invention. [Explanation of symbols]

[0020] 10 Blade body 11 Pivot 12 Slide groove 13 Auxiliary groove 14 Positioning protrusion 15 Angle indication unit 20 blades 21 Processing Edge 22 Clamp edge 23 Through hole 30 Adjustment Assembly 31 Blade seat 311 Track Insertion Section 312 Clamp section 313 Insertion hole 32 Clamping member 33 Compression member 34 Alignment Unit 40 Pivot member θ Tilt angle

Claims

1. A blade body including a pivot point; A blade pivotally mounted on a pivot point of the blade body and including a processing edge protruding from the blade body; and an adjustment assembly that rotates about a pivot point of the blade body to pivot the blade relative to the blade body, thereby adjusting the inclination angle of the processing edge relative to the axial direction of the blade body.

2. The blade body is provided with a slide groove formed to extend in an arc shape with the pivot point as a center, The variable chamfer cutter according to claim 1 , wherein the adjustment assembly moves along the slide groove to rotate about a pivot point of the blade body, thereby pivoting the blade relative to the blade body.

3. The adjustment assembly includes: A blade seat inserted into a slide groove of the blade body; A clamp member provided on the blade seat; The variable chamfer cutter according to claim 2, further comprising a compression member fixed to the blade body so that the blade seat and the clamp member are pressed against the clamp member to clamp the blade body and the blade is restricted in movement to the blade seat.

4. The blade body includes: an auxiliary groove extending in the same direction as the slide groove and spaced apart from the slide groove; a positioning protrusion provided between the auxiliary groove and the slide groove, The clamp member can rotate about the pivot point of the blade body together with the blade seat by moving along the auxiliary groove, The variable chamfer cutter according to claim 3 , wherein when the pressure member is pressed against the clamp member, the clamp member clamps the positioning protrusion of the blade body together with the blade seat.

5. The variable chamfer cutter according to claim 1 , wherein the blade includes three cutting edges connected to each other to form an equilateral triangular structure, one of which is the processing edge.

6. The adjustment assembly includes two clamp portions; The variable chamfer cutter according to claim 5 , wherein the two clamping portions are provided opposite to each other and abut against the other two cutting edges of the blades, respectively.

7. The blade body includes a plurality of angle indicating units, The variable chamfer cutter according to claim 5 , wherein the plurality of angle indicating units indicate a magnitude of an angle at which the cutting edge of the blade is inclined relative to an axial direction of the blade body when the adjustment assembly is rotated.

8. The variable chamfer cutter according to claim 5 , wherein the inclination angle of the cutting edge of the blade relative to the axial direction of the blade body is adjustable in the range of 0° to 90°.

9. The blade body includes a plurality of angle indicating units, The variable chamfer cutter according to claim 1 , wherein the plurality of angle indication units indicate the magnitude of an angle at which the cutting edge of the blade is inclined relative to an axial direction of the blade body when the adjustment assembly is rotated.

10. 5. A variable chamfer cutter according to claim 1, wherein the inclination angle of the cutting edge of the blade relative to the axial direction of the blade body is adjustable in the range of 0° to 90°.

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