CN220902074U - Novel inner hole chamfering tool with polishing function - Google Patents
Novel inner hole chamfering tool with polishing function Download PDFInfo
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- CN220902074U CN220902074U CN202322524171.1U CN202322524171U CN220902074U CN 220902074 U CN220902074 U CN 220902074U CN 202322524171 U CN202322524171 U CN 202322524171U CN 220902074 U CN220902074 U CN 220902074U
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- tool bit
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- 238000005498 polishing Methods 0.000 title claims abstract description 63
- 238000000227 grinding Methods 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 229910001103 M42 high speed steel Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 17
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 6
- 239000004576 sand Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The novel inner hole chamfering tool with the polishing function comprises a tool bar, an elastic tool bit and a grinding head, wherein the elastic tool bit comprises a left tool bit and a right tool bit, the left tool bit comprises a left tool tip and a left tool bit, the right tool bit comprises a right tool tip and a right tool bit, and the grinding head comprises a left polishing bulge and a right polishing bulge; the elastic cutter head is arranged at the lower end of the cutter bar, the left blade is arranged at the position close to the upper end of the left outer side of the elastic cutter head, and the right blade is arranged at the position close to the upper end of the right outer side of the elastic cutter head; the left polishing bulge is arranged at the lower end of the left outer side of the elastic cutter head and the right polishing bulge is arranged at the lower end of the right outer side of the elastic cutter head; the left polishing bulge and the right polishing bulge are respectively larger than the left blade and the right blade in width at the left side and the right side, and the space between the left polishing bulge and the left blade and the space between the right polishing bulge and the right blade are not smaller than the height of the inner hole to be processed. The chamfering and polishing treatment can be completed at one time, so that the processing efficiency is improved, the labor is saved, and the injury to hands can be avoided.
Description
Technical Field
The utility model relates to the field of precision machining cutters, in particular to a novel inner hole chamfering cutter with a polishing function.
Background
The inner hole chamfering tool is also called a chamfering device. The chamfering machine has wide application range, is suitable for chamfering common machining parts, and is more suitable for chamfering and deburring precise difficult-to-chamfer machining parts. The chamfering tool is assembled on a milling machine, a drilling machine, a planing machine, a chamfering machine and other machine tools and is used for processing chamfering, taper holes and chamfer angles of workpieces, and belongs to an end mill. The chamfering device can be used for processing burrs on two sides of the hole at one time during chamfering, and the chamfering cutting quantity can be controlled by adjusting the rotating speed and the feeding quantity.
However, for some precise parts, customers require no burrs at the inner and outer parts of the inner hole of the workpiece and at the two ends of the hole, and the existing inner hole chamfering tool is adopted, and the extending direction of the fine burrs in the inner hole of some precise parts is the same as the moving direction of the cutting edge when the inner hole chamfering tool rotates, so that interference can be caused when the inner hole chamfering tool and the deburring tool are used for processing, even manual polishing is sometimes needed for processing, but the manual polishing is low in efficiency, time and labor are wasted, the hands are easy to scratch due to polishing, and meanwhile, the manual polishing is not uniform.
In view of the above, the present inventors have made intensive studies to solve the above-mentioned drawbacks of the prior art.
Disclosure of utility model
In order to solve the technical problem, the novel inner hole chamfering tool with the polishing function is provided, chamfering and polishing treatment are completed once while the precision of a product processing surface is guaranteed, the processing efficiency is improved, the enterprise cost is reduced, manpower and material resources are greatly saved, and injury to hands is avoided.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
The novel inner hole chamfering tool with the polishing function comprises a tool bar, an elastic tool bit and a grinding head, wherein the elastic tool bit comprises a left tool bit and a right tool bit, the left tool bit comprises a left tool tip and a left tool bit, the right tool bit comprises a right tool tip and a right tool bit, the grinding head comprises a left polishing bulge and a right polishing bulge, and the surfaces of the left polishing bulge and the right polishing bulge are of circular arc structures; the elastic cutter head is arranged at the lower end of the cutter bar, the left blade is arranged at the position close to the upper end of the left outer side of the elastic cutter head, and the right blade is arranged at the position close to the upper end of the right outer side of the elastic cutter head; the left polishing bulge is arranged at the lower position of the lower end of the left outer side of the elastic cutter head, and the right polishing bulge is arranged at the lower position of the lower end of the right outer side of the elastic cutter head; the left end of the bottom of the cutter bar is connected with the upper end of a left cutter point, the right end of the bottom of the cutter bar is connected with the upper end of a right cutter point, a strip-shaped notch is formed between the left cutter point and the right cutter point, the left cutter edge is fixedly arranged close to the upper part of the outer side of the lower part of the left cutter point, and the right cutter edge is fixedly arranged close to the upper part of the outer side of the lower part of the right cutter point; the width that left side is polished protruding and right side is polished protruding and is greater than respectively that left side cutting edge and right cutting edge extend to left and right sides, and the interval between protruding and the left cutting edge of left side is polished protruding and right side and the interval between protruding and the right cutting edge of right side are all not less than the height of waiting to process the hole.
Preferably, the left blade and the right blade are symmetrically arranged on the left side and the right side of the elastic cutter head, and the left polishing protrusion and the right polishing protrusion are symmetrically arranged on the left side and the right side of the elastic cutter head.
Preferably, the angle from the lower edge surface of the left blade to the left knife tip is 45 degrees, and the angle from the upper edge surface of the left blade to the left knife tip is 45 degrees; the angle from the lower blade surface of the right blade to the right blade tip is 45 degrees, and the angle from the upper blade surface of the right blade to the right blade tip is 45 degrees.
Preferably, the left blade and the right blade are formed by M42 high-speed steel materials, and the hardness of the left blade and the right blade is 63HRC.
Preferably, the left polishing protrusion and the right polishing protrusion are formed by tungsten steel.
According to the technical scheme, the grinding head is additionally arranged on the elastic cutter head of the chamfering cutter, the grinding head comprises the left grinding bulge and the right grinding bulge, the elastic cutter head is arranged at the lower end of the cutter bar, the left blade is arranged at the position, close to the upper position, of the lower end of the left outer side of the elastic cutter head, the left grinding bulge is arranged at the position, close to the lower position, of the lower end of the left outer side of the elastic cutter head, the right blade is arranged at the position, close to the upper position, of the lower end of the right outer side of the elastic cutter head, and the right grinding bulge is arranged at the position, close to the lower position, of the lower end of the right outer side of the elastic cutter head; the width that left side is polished protruding and right side is polished protruding and is greater than left cutting edge and right cutting edge respectively and extends to left and right sides to the width that left side was polished protruding and right side, and the interval between protruding and right cutting edge are polished to the left side and the right side is polished protruding and right cutting edge between the interval be not less than the height of waiting to process the hole. When processing, just can let left side polish protruding and right side polish protruding earlier to pass the hole of waiting to process, make wait to process the hole and be located left side and polish protruding and right side and polish between protruding and right side, after left side cutting edge and right side cutting edge processing are accomplished, the in-process that elasticity tool bit risees, rotatory left side is polished protruding and right side is polished protruding and just can polish and cut open light to the through-hole after processing and both ends chamfer, make chamfer processing and polishing handle once accomplish, when guaranteeing product machined surface precision, machining efficiency has been improved, the cost of enterprises has been reduced, also reduce the manual labor and avoided injuring the people's hand. The through hole is finished by means of plastic deformation of the elastic tool bit, chamfering and polishing of the through hole are performed at one time, labor hour and labor cost are shortened, efficiency and product quality are improved, and labor force is saved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a novel inner hole chamfering tool with grinding function according to the present utility model;
FIG. 2 is a top view of a novel hole chamfering tool with grinding function according to the present disclosure;
FIG. 3 is a bottom view of a novel hole chamfering tool with grinding function according to the present disclosure;
FIG. 4 is a perspective view of a machined part of the novel hole chamfering tool with grinding function of the present utility model;
Fig. 5 is a view showing a state of use of the novel inner hole chamfering tool with the polishing function in a chamfering polishing process.
Corresponding part names indicated by numerals in the drawings: 10. cutter bar 20, elastic cutter head 21, left cutter blade 22, right cutter blade 211, left cutter tip 212, left cutter blade 221, right cutter tip 222, right cutter blade 30, grinding head 31, left grinding protrusion 32, right grinding protrusion 40, strip-shaped notch 50, and inner hole to be processed
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The present utility model will be described in further detail with reference to examples and embodiments.
Examples
As shown in fig. 1, 2, 3, 4 and 5, the novel inner hole chamfering tool with polishing function comprises a tool bar 10, an elastic tool bit 20 and a grinding head 30, wherein the elastic tool bit 20 comprises a left tool bit 21 and a right tool bit 22, the left tool bit 21 comprises a left tool tip 211 and a left tool bit 212, the right tool bit 22 comprises a right tool tip 221 and a right tool bit 222, the grinding head 30 comprises a left polishing protrusion 31 and a right polishing protrusion 32, and the surfaces of the left polishing protrusion 31 and the right polishing protrusion 32 are in circular arc structures; the elastic cutter head 20 is arranged at the lower end of the cutter bar 10, the left cutter blade 21 is arranged at the upper position of the lower end of the left outer side of the elastic cutter head 20, and the right cutter blade 22 is arranged at the upper position of the lower end of the right outer side of the elastic cutter head 20; the left polishing protrusion 31 is located at a position below the left outer lower end of the elastic cutter head 20, and the right polishing protrusion 32 is located at a position below the right outer lower end of the elastic cutter head 20; the left end of the bottom of the cutter bar 10 is connected with the upper end of the left cutter tip 211, the right end of the bottom of the cutter bar 10 is connected with the upper end of the right cutter tip 221, a strip-shaped notch 40 is formed between the left cutter tip 211 and the right cutter tip 221, the left cutter blade 212 is fixedly arranged near the upper part of the outer side of the lower part of the left cutter tip 211, and the right cutter blade 222 is fixedly arranged near the upper part of the outer side of the lower part of the right cutter tip 221. In order to ensure that the grinding surfaces on the left and right sides of the left grinding protrusion 31 and the right grinding protrusion 32 can be in full contact with the inner surfaces of the two end parts of the inner hole after chamfering, and have a sufficient pressing force, the widths of the left grinding protrusion 31 and the right grinding protrusion 32 extending to the left and right sides are respectively larger than those of the left blade 212 and the right blade 222 extending to the left and right sides. The distance between the left polishing protrusion 31 and the left blade 212 and the distance between the right polishing protrusion 32 and the right blade 222 are not smaller than the height of the inner hole 50 to be machined, so that the condition that the lower end of the elastic cutter head 20 can be clamped and sleeved in the inner hole 50 to be machined by precision parts to be machined is met, and short pause can be performed in the machining process.
Wherein the left blade 212 and the right blade 222 are symmetrically disposed on the left and right sides of the elastic cutter head 20, and the left grinding protrusion 31 and the right grinding protrusion 32 are symmetrically disposed on the left and right sides of the elastic cutter head 20. The inner hole chamfering and polishing efficiency is guaranteed, and meanwhile, the stress on two sides of the lower portion of the chamfering tool is balanced, so that the service life of the chamfering tool is prolonged.
Meanwhile, in order to ensure the consistency of chamfer shapes at two ends of the inner hole 50 to be processed and balance the stress of the upper and lower blade surfaces of the left blade 212 and the right blade 222, the lower blade surface of the left blade 212 is inclined upwards to the angle of the left blade tip 211 to be 45 degrees, and the upper blade surface of the left blade 212 is inclined downwards to the angle of the left blade tip 211 to be 45 degrees; the angle of the lower edge surface of the right blade 222 inclined to the right knife tip 221 is 45 degrees, and the angle of the upper edge surface of the right blade 222 inclined downwards to the right knife tip 221 is 45 degrees.
In addition, in order to secure cutting strength of the left blade 212 and the right blade 222, the left blade 212 and the right blade 222 are formed of M42 high-speed steel material and have a hardness of 63HRC. The left polishing protrusion 31 and the right polishing protrusion 32 are formed of tungsten steel so as to have sufficient wear resistance.
In the embodiment, the grinding head 30 is additionally arranged on the elastic cutter head of the chamfering cutter, the grinding head 30 comprises a left grinding bulge 31 and a right grinding bulge 32, the elastic cutter head 20 is arranged at the lower end of the cutter bar 10, the left cutter blade 21 is arranged at the upper position of the lower end of the left outer side of the elastic cutter head 20, the left grinding bulge 31 is arranged at the lower position of the lower end of the left outer side of the elastic cutter head 20, the right cutter blade 22 is arranged at the upper position of the lower end of the right outer side of the elastic cutter head 20, and the right grinding bulge 32 is arranged at the lower position of the lower end of the right outer side of the elastic cutter head 20; the left grinding protrusion 31 and the right grinding protrusion 32 have widths extending to the left and right sides greater than the widths extending to the left and right sides of the left blade 212 and the right blade 222, respectively, and the spacing between the left grinding protrusion 31 and the left blade 212 and the spacing between the right grinding protrusion 32 and the right blade 222 are not smaller than the height of the inner hole to be machined. When processing, just so can let left side sand protruding 31 and right side sand protruding 32 pass wait to process hole 50 earlier, make wait to process hole 50 and be located between left side sand protruding 31 and left cutting edge 212 and right side sand protruding 32 and right cutting edge 222, after left cutting edge 212 and right cutting edge 222 processing are accomplished, the in-process that elasticity tool bit 20 risen, rotatory left side sand protruding 31 and right side sand protruding 32 just can polish and cut open through-hole after processing and both ends chamfer, make chamfer processing and polishing once accomplish, when guaranteeing product machined surface precision, machining efficiency has been improved, the cost of enterprises has also been reduced, and the manual labor just avoided injuring the people's hand. The through hole is completed by means of plastic deformation of the elastic cutter head in cooperation with a CNC program, chamfering and polishing of the through hole are performed at one time, labor hour and labor cost are shortened, efficiency and product quality are improved, and labor force is saved. The chamfering tool designs a rationalized tool through multiple attempts of processing methods and development of processing ideas, so that the tool can work efficiently, the cost and the manual deburring time are greatly reduced, the requirements of customers are met, the efficiency is improved, the cost is saved, and the appearance of a through hole after chamfering processing and polishing is attractive. Thereby achieving the purposes of novel design, reasonable structure and good application effect.
The foregoing is merely a preferred embodiment of the present utility model for a novel hole chamfering tool with grinding function, and it should be noted that variations and modifications can be made by those skilled in the art without departing from the inventive concept, which falls within the scope of the present utility model.
Claims (5)
1. The novel inner hole chamfering tool with the polishing function is characterized by comprising a tool bar, an elastic tool bit and a grinding head, wherein the elastic tool bit comprises a left tool bit and a right tool bit, the left tool bit comprises a left tool tip and a left tool bit, the right tool bit comprises a right tool tip and a right tool bit, the grinding head comprises a left polishing bulge and a right polishing bulge, and the surfaces of the left polishing bulge and the right polishing bulge are of circular arc structures; the elastic cutter head is arranged at the lower end of the cutter bar, the left blade is arranged at the position close to the upper end of the left outer side of the elastic cutter head, and the right blade is arranged at the position close to the upper end of the right outer side of the elastic cutter head; the left polishing bulge is arranged at the lower position of the lower end of the left outer side of the elastic cutter head, and the right polishing bulge is arranged at the lower position of the lower end of the right outer side of the elastic cutter head; the left end of the bottom of the cutter bar is connected with the upper end of a left cutter point, the right end of the bottom of the cutter bar is connected with the upper end of a right cutter point, a strip-shaped notch is formed between the left cutter point and the right cutter point, the left cutter edge is fixedly arranged close to the upper part of the outer side of the lower part of the left cutter point, and the right cutter edge is fixedly arranged close to the upper part of the outer side of the lower part of the right cutter point; the width that left side is polished protruding and right side is polished protruding and is greater than respectively that left side cutting edge and right cutting edge extend to left and right sides, and the interval between protruding and the left cutting edge of left side is polished protruding and right side and the interval between protruding and the right cutting edge of right side are all not less than the height of waiting to process the hole.
2. The novel inner hole chamfering tool with polishing function according to claim 1, wherein the left blade and the right blade are symmetrically arranged on the left side and the right side of the elastic tool bit, and the left polishing protrusion and the right polishing protrusion are symmetrically arranged on the left side and the right side of the elastic tool bit.
3. The novel inner hole chamfering tool with polishing function as set forth in claim 2, wherein the angle from the lower edge face of the left blade to the left knife tip is 45 degrees, and the angle from the upper edge face of the left blade to the left knife tip is 45 degrees; the angle from the lower blade surface of the right blade to the right blade tip is 45 degrees, and the angle from the upper blade surface of the right blade to the right blade tip is 45 degrees.
4. A novel inner hole chamfering tool with polishing function according to claim 3, wherein the left blade and the right blade are formed of M42 high-speed steel material and have a hardness of 63HRC.
5. The novel inner hole chamfering tool with polishing function according to claim 4, wherein the left polishing protrusion and the right polishing protrusion are formed by tungsten steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322524171.1U CN220902074U (en) | 2023-09-18 | 2023-09-18 | Novel inner hole chamfering tool with polishing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322524171.1U CN220902074U (en) | 2023-09-18 | 2023-09-18 | Novel inner hole chamfering tool with polishing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220902074U true CN220902074U (en) | 2024-05-07 |
Family
ID=90916979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322524171.1U Active CN220902074U (en) | 2023-09-18 | 2023-09-18 | Novel inner hole chamfering tool with polishing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220902074U (en) |
-
2023
- 2023-09-18 CN CN202322524171.1U patent/CN220902074U/en active Active
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