CN215966692U - Chamfering tool - Google Patents
Chamfering tool Download PDFInfo
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- CN215966692U CN215966692U CN202121495998.9U CN202121495998U CN215966692U CN 215966692 U CN215966692 U CN 215966692U CN 202121495998 U CN202121495998 U CN 202121495998U CN 215966692 U CN215966692 U CN 215966692U
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- chamfering tool
- chamfering
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Abstract
The utility model discloses a chamfering tool, which comprises a chamfering tool and a positioning column, wherein the positioning column is matched with a hole to be machined, the chamfering tool comprises a tool bit, the top end of the tool bit is provided with an inner hole, the positioning column is movably connected with the inner hole, the tool bit is provided with a plurality of cutting edges which are distributed in an umbrella shape by taking the inner hole as the center, a chip discharge groove is formed between every two adjacent cutting edges, and the rotating cutting direction of the cutting edges is opposite to the rotating moving direction of the positioning column in the inner hole. The utility model solves the problems of irregular hole chamfering angle and burrs on the hole wall caused by inaccurate positioning of the chamfering tool and the workpiece hole.
Description
Technical Field
The utility model relates to the technical field of machining, in particular to a chamfering tool.
Background
The multi-purpose cutting sword countersink of mesopore of present machining process, the angle and the size of chamfer lean on artificial control, lack the adjustability, and simultaneously, the chamfer sword can not guarantee with the work piece hole at initial stage with one heart, need lean on the inclination of chamfer sword to find accurate central point and put, can produce the time difference and lead to the chamfer inhomogeneous or irregular, chamfer sword blade wearing and tearing can produce the turn-up and lead to the burr to amass at the pore wall difficult discovery, to the higher aperture of precision, then the precision is difficult to guarantee, lead to the aperture unqualified.
Disclosure of Invention
The utility model aims to provide a chamfering tool, which solves the problems of irregular hole chamfering angle and burrs on the hole wall caused by inaccurate positioning of the chamfering tool and a workpiece hole.
In order to solve the technical problem, the utility model provides a chamfering tool, which comprises a chamfering tool and a positioning column, wherein the positioning column is matched with a hole to be machined, the chamfering tool comprises a tool bit, an inner hole is formed in the top end of the tool bit, the positioning column is movably connected with the inner hole, a plurality of cutting edges which are distributed in an umbrella shape by taking the inner hole as the center are arranged on the tool bit, chip grooves are formed between every two adjacent cutting edges, and the rotating cutting direction of the cutting edges is opposite to the rotating moving direction of the positioning column in the inner hole.
Preferably, the positioning column comprises a positioning head and a connecting rod which are connected with each other, the connecting rod can be movably connected with the inner hole, and the positioning head is matched with the hole diameter of the hole to be machined.
Preferably, the inner hole is a threaded hole, the connecting rod is a threaded rod, and the threaded rod is matched with the threaded hole.
Preferably, the thread direction of the threaded hole is opposite to the direction of the rotary cutting of the blade.
Preferably, the included angle between the chip groove and the blade edge surface is 30-34 degrees.
Preferably, the cutting edge is a finish milling edge.
Preferably, the number of said cutting edges is at least 3.
Preferably, the chamfering tool further comprises a tool shank connected with the tool bit.
Preferably, the axis of the shank coincides with the bore axis of the bore.
Preferably, the tool shank is a cylindrical tool shank, and the diameter of the tool shank is 3.175 mm.
The utility model has the beneficial effects that: the chamfering tool is provided with the positioning column, and when the chamfering tool and the bottom positioning column are combined together, the center of a hole to be machined is automatically taken by the positioning column, so that the positioning deviation is effectively prevented, and the chamfering precision is greatly improved; the chip removal grooves are formed among the cutting edges, so that the chip removal function and the heat dissipation are increased, and the service life of the cutter is effectively prolonged; the rotary cutting edge is positioned in a matched mode, the problem of burrs at the edge of a hole is effectively solved, the burrs after chamfering are prevented from being returned in the hole, secondary machining operation is omitted, the whole structure is simple, replacement is rapid, universality is wide, and the rotary cutting edge is suitable for chamfering products with different apertures.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the chamfer cutter of the utility model;
FIG. 3 is a schematic view of a positioning post structure of the present invention;
FIG. 4 is a side schematic view of the mounting structure of the present invention;
the reference numbers in the figures illustrate: 10. chamfering cutter; 101. a cutter head; 102. a blade; 103. a chip groove; 104. a threaded hole; 105. a knife handle; 20. a positioning column; 201. a threaded rod; 202. the head is positioned.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Example one
As shown in fig. 1 to 4, the present embodiment provides a chamfering tool, which includes a chamfering tool 10 and a positioning column 20, the positioning column 20 is adapted to a hole to be machined, the chamfering tool 10 includes a tool bit 101, an inner hole is formed at a top end of the tool bit 101, the positioning column 20 is movably connected to the inner hole, a plurality of cutting edges 102 which are distributed in an umbrella shape with the inner hole as a center are arranged on the tool bit 101, a chip discharge groove 103 is formed between adjacent cutting edges 102, and a direction of rotational cutting of the cutting edges 102 is opposite to a direction of rotational movement of the positioning column 20 in the inner hole.
In the processing process, the positioning column 20 is selected to be matched with the hole to be processed in size, the positioning column 20 is combined with an inner hole at one end, the other end of the positioning column 20 is inserted into the hole to be processed, the positioning column 20 automatically acquires a center to play a role in automatic positioning and effectively prevent positioning offset, at the moment, the cutting edge 102 is rotated in the forward direction to perform chamfering cutting processing on the hole to be processed, processing scraps are discharged through the scrap discharge groove 103, the influence of the scraps on the rotation of the cutting edge is reduced, the service life of the cutter is effectively prolonged, meanwhile, the cutting direction of the cutting edge 102 is opposite to the rotating direction of the positioning column 20 in the inner hole, the positioning column 20 is more and more tight relative to the cutter head 101 in the processing rotating process, the positioning column 20 is effectively prevented from loosening, the machine table and the chamfering cutter 10 can realize bidirectional positioning through the positioning column 20, chamfering precision is greatly improved, burrs after chamfering are prevented from being inverted in the hole, and secondary processing operation is cancelled, the machining efficiency is improved, different positioning columns 20 can be selected according to the size of the hole to be machined, the replacement is rapid, and the universality is wide.
Example two
As shown in fig. 1-4, the present embodiment provides a chamfering tool, in the first embodiment, the positioning column 20 includes a positioning head 202 and a connecting rod, which are connected to each other, the connecting rod can be movably connected to the inner hole, and the positioning head 202 is adapted to the hole diameter of the hole to be processed. The inner hole is a threaded hole 104, the connecting rod is a threaded rod 201, and the threaded rod 201 is matched with the threaded hole 104. The threaded hole 104 is threaded in the opposite direction to the direction of the rotary cutting of the blade 102.
Specifically, in the present embodiment, the chamfer cutter 10 includes a cutter shank 105 and a cutter head 101, and the diameter of the cutter shank 105 is set to be 3.175 mm; the cutting edges 102 are 3 milling edges, and the cutting edges 102 are 3 cutting edges which are all milling edges, so that the problem of hole edge burrs is effectively solved; the angle of the chip removal groove 103 is set to be 32 degrees +/-2 degrees, the chip removal effect and the heat dissipation effect are effectively optimized, and the service life of the cutter is prolonged; the threaded hole 104 is a blind hole, the size of the threaded hole 104 is matched with that of a threaded rod 201 on the positioning column 20, the threaded rod 201 can be screwed into the threaded hole 104, the threaded hole 104 is a reverse-threaded hole, and in the machining process, the cutting edge 102 rotates in the forward direction, and the threads rotate in the reverse direction, so that the positioning column 20 is more and more tight to prevent loosening; the size of the positioning head 202 can be freely configured according to the size of the aperture of the workpiece, and when the chamfer cutter 10 and the bottom positioning column 20 are combined together, the positioning column 20 automatically acquires the center, so that the automatic positioning function is achieved, and the positioning deviation is effectively prevented.
The chamfering tool is low in overall cost, convenient to use, quick to replace, wide in universality and suitable for chamfering products with different apertures; and the machine table and the chamfering tool can realize bidirectional positioning, so that the chamfering precision is greatly improved, burrs after chamfering are prevented from returning into holes, secondary machining operation is omitted, and the machining efficiency is improved.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the utility model is all within the protection scope of the utility model. The protection scope of the utility model is subject to the claims.
Claims (10)
1. The utility model provides a chamfering tool, its characterized in that includes chamfer sword and reference column, the reference column with wait to process the looks adaptation, the chamfer sword includes the tool bit, the tool bit top is equipped with the hole, the reference column with hole swing joint, be equipped with on the tool bit with the hole is a plurality of cutting edges that umbelliform distributes as the center, and is adjacent be equipped with the chip groove between the cutting edge, the direction of the rotatory cutting of cutting edge with the direction opposite of reference column rotatory activity in the hole.
2. The chamfering tool according to claim 1, wherein the positioning post comprises a positioning head and a connecting rod connected with each other, the connecting rod is movably connected with the inner hole, and the positioning head is matched with the hole diameter of the hole to be machined.
3. The chamfering tool according to claim 2, wherein the bore is a threaded bore and the connecting rod is a threaded rod that mates with the threaded bore.
4. The chamfering tool according to claim 3, wherein the threaded hole is threaded in a direction opposite to the direction of the rotary cutting of the blade.
5. The chamfering tool according to claim 1, wherein the flute is angled 30 ° to 34 ° from the edge face.
6. The chamfering tool according to claim 1, wherein the cutting edge is a finishing edge.
7. The chamfering tool according to claim 1, wherein the number of the cutting edges is at least 3.
8. The chamfering tool according to claim 1, further comprising a shank coupled to the cutting head.
9. The chamfering tool according to claim 8, wherein the axis of the shank coincides with the bore axis of the bore.
10. The chamfering tool according to any one of claims 1 to 8, wherein the shank is a cylindrical shank, the shank having a diameter of 3.175 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121495998.9U CN215966692U (en) | 2021-07-01 | 2021-07-01 | Chamfering tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121495998.9U CN215966692U (en) | 2021-07-01 | 2021-07-01 | Chamfering tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215966692U true CN215966692U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121495998.9U Active CN215966692U (en) | 2021-07-01 | 2021-07-01 | Chamfering tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215966692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114433958A (en) * | 2022-03-14 | 2022-05-06 | 贵阳博亚机械制造有限公司 | Tool for chamfering inner groove hole of narrow cavity and machining method |
-
2021
- 2021-07-01 CN CN202121495998.9U patent/CN215966692U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114433958A (en) * | 2022-03-14 | 2022-05-06 | 贵阳博亚机械制造有限公司 | Tool for chamfering inner groove hole of narrow cavity and machining method |
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