CN209811258U - Boring cutter - Google Patents
Boring cutter Download PDFInfo
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- CN209811258U CN209811258U CN201920526029.1U CN201920526029U CN209811258U CN 209811258 U CN209811258 U CN 209811258U CN 201920526029 U CN201920526029 U CN 201920526029U CN 209811258 U CN209811258 U CN 209811258U
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- 238000003754 machining Methods 0.000 claims abstract description 21
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 8
- 239000000110 cooling liquid Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 description 22
- 230000002349 favourable effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- Drilling Tools (AREA)
Abstract
The utility model relates to a boring cutter, which comprises a cutter handle and a first cutter head fixedly connected on the cutter handle, wherein the outer side wall of the first cutter head is provided with two first right-angle grooves, and the first right-angle grooves are provided with a first boring blade and a first chamfering blade which are used for processing an A hole; the outer side wall of the first tool bit is also provided with two second right-angle grooves, and second chamfering blades for chamfering the hole B are mounted on the second right-angle grooves; compared with the traditional boring machining, the boring cutter can save the operation of frequently replacing the boring cutter, and the boring cutter can continuously machine the hole A, the hole B and the hole C on the stepped hole by clamping once, so that the machining operation is convenient and fast, the machining efficiency is improved, meanwhile, the deviation generated in the machining process can be reduced, and the machining quality of workpieces is improved.
Description
Technical Field
The utility model belongs to the technical field of the technique of lathe cutter and specifically relates to a boring cutter is related to.
Background
The boring cutter is one of cutting tools, and the most common occasions are inner hole machining, hole expanding, profiling and the like. Tools with one or two cutting parts, specially adapted for roughing, semi-finishing or finishing existing holes.
The boring cutter comprises a cutter handle, a cutter head fixedly connected to the cutter handle and a boring blade fixed on the cutter head through a fastening screw. An operator can machine the existing hole after installing the boring cutter on a boring machine. In the traditional boring processing technology, after the boring cutter provided with the boring blade is used for processing the existing hole, the boring cutter provided with the chamfering blade is used for chamfering the opening of the hole.
Referring to fig. 4, a stepped hole with a fixed size is shown on a workpiece, three holes a, B and C with different apertures are distributed on the stepped hole, and the apertures of the holes a, B and C are sequentially reduced from outside to inside. If the traditional machining process is adopted to machine the stepped hole, an operator firstly needs to sequentially use the boring cutters with different cutting apertures to cut the inner side walls of the three apertures, and then sequentially uses the boring cutters with different cutting apertures to chamfer the openings of the three apertures, so that the operator needs to frequently replace the boring cutters, the machining operation becomes complicated, and the machining deviation is easily caused to influence the machining quality of a workpiece.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a boring cutter can save the operation of frequently changing the boring cutter, and boring cutter once clamps can carry out continuous processing to A hole, B hole and the C hole on the shoulder hole, not only makes the processing operation become convenient and fast, improves machining efficiency, still can reduce the deviation that produces in the course of working simultaneously, is favorable to improving the processingquality of work piece.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a boring cutter comprises a cutter handle and a first cutter head fixedly connected to the cutter handle, wherein two first right-angle grooves are formed in the outer side wall of the first cutter head, and a first boring blade and a first chamfering blade which are used for machining an A hole are mounted on the first right-angle grooves; the outer side wall of the first tool bit is also provided with two second right-angle grooves, and second chamfering blades for chamfering the hole B are mounted on the second right-angle grooves; the first cutter head is far away from one end of the cutter handle is fixedly connected with a second cutter head which is coaxial with the first cutter head, the diameter of the second cutter head is smaller than that of the first cutter head, four third right-angle grooves are formed in the outer side wall of the second cutter head, second boring blades used for machining B holes are installed on the two third right-angle grooves, and third boring blades and third chamfering blades used for machining C holes are installed on the other two third right-angle grooves.
By adopting the technical scheme, in the process that the boring cutter rotating at a high speed gradually enters the stepped hole, the first boring blade on the first cutter head contacts with the inner wall of the hole A firstly and performs cutting processing on the inner wall of the hole A, and in the process that the boring cutter continuously enters the stepped hole, the second boring blade and the third boring blade on the second cutter head perform cutting processing on the inner wall of the hole B and the inner wall of the hole C respectively. When the boring cutter is about to reach the final cutting station, the first chamfering blade is used for chamfering the opening of the hole A, the second chamfering blade is used for chamfering the opening of the hole B, and the third chamfering blade is used for chamfering the opening of the hole C.
The utility model discloses further set up to: the first tool bit and the second tool bit are respectively provided with a mounting groove which is abutted against the side walls of the first boring blade, the first chamfering blade, the second boring blade, the third boring blade and the third chamfering blade.
Through adopting above-mentioned technical scheme, the setting up of mounting groove can multiplicable first bore hole blade, first chamfer blade, second bore hole blade, third bore hole blade and third chamfer blade and the area of contact who corresponds the tool bit, and then is favorable to improving the steadiness of above-mentioned blade after the installation, has reduced the probability that above-mentioned blade takes place to rock in cutting process, is favorable to improving the processingquality of work piece. In addition, the installation operation of the blade by an operator is facilitated due to the arrangement of the installation groove.
The utility model discloses further set up to: circular grooves are formed in the end corners of the mounting grooves.
Through adopting above-mentioned technical scheme, the end angle department transition of mounting groove can be made in the setting of circular slot is mellow and smooth, has reduced the probability that the fracture takes place in the stress of mounting groove end angle department, plays certain degree's guard action to first tool bit and second tool bit, has prolonged the life of boring cutter.
The utility model discloses further set up to: the two first right-angle grooves are circumferentially and uniformly distributed on the outer side wall of the first tool bit, the two second right-angle grooves are also circumferentially and uniformly distributed on the outer side wall of the first tool bit, and the first right-angle grooves and the second right-angle grooves are arranged at intervals; and the four third right-angle grooves are circumferentially and uniformly distributed on the outer side wall of the second tool bit.
Through adopting above-mentioned technical scheme, circumference evenly distributed just is first right-angle groove and the second right-angle groove that the interval set up on first cutterhead lateral wall, can improve the holistic harmony of first cutterhead and stability, makes first bore hole blade, first chamfer blade, the second chamfer blade on the first cutterhead can carry out cutting process to the shoulder hole high-efficiently and accurately, helps improving the processingquality of work piece. Third right-angle groove that circumference evenly distributed on the second tool bit lateral wall also can improve the holistic harmony of second tool bit and stability equally, makes second bore hole blade, third bore hole blade, the third chamfer blade on the second tool bit can high-efficiently and accurately carry out cutting process to the shoulder hole, helps improving the processingquality of work piece.
The utility model discloses further set up to: the first right-angle groove and the second right-angle groove are communicated with one end face, far away from the cutter handle, of the first cutter head, and the fourth right-angle groove is communicated with two end faces of the second cutter head and is aligned with the first right-angle groove and the second right-angle groove.
Through adopting above-mentioned technical scheme, first right angle groove and second right angle after the alignment will help the discharge of sweeps in the course of working, and then improve the processingquality of work piece.
The utility model discloses further set up to: one end of the first right-angle groove, which is far away from the first boring blade, is in arc transition arrangement; and one end of the second right-angle groove far away from the second chamfering blade is also in arc transition arrangement.
Through adopting above-mentioned technical scheme, the arc transition setting on first right-angle groove and the second right-angle groove, one helps the discharge of sweeps in the course of working, and then the processingquality of improvement work piece, the area of contact of second tool bit with the air has been increased secondly, be favorable to improving the heat dissipation in the boring cutter cutting process, the life of boring cutter has been prolonged, the third tip transition of making first right-angle groove and second right-angle groove is mellow and full, the condition of boring cutter fracture in the cutting process has been reduced, the effect of the life of boring cutter has been prolonged equally.
The utility model discloses further set up to: a liquid injection port for injecting cooling liquid is formed in the tool shank, a first through hole communicated with the liquid injection port and a first flow guide hole communicated with the first through hole are formed in the first tool bit; and a second through hole communicated with the first through hole and a second flow guide hole communicated with the second through hole are formed in the second tool bit.
By adopting the technical scheme, when the boring cutter cuts a workpiece, the cooling liquid flows out of the first flow guide hole and the second flow guide hole in sequence and finally flows out of the first flow guide hole and the second flow guide hole, so that a blade in the cutting process has excellent cooling and lubricating effects, the machining quality of the workpiece can be improved, and the blade in the cutting process can be protected to a certain extent.
To sum up, the utility model discloses a beneficial technological effect does:
1. the arrangement of the first boring blade, the first chamfering blade, the second boring blade, the third boring blade and the third chamfering blade can continuously process the hole A, the hole B and the hole C on the stepped hole at one time, so that the processing efficiency is improved, and meanwhile, the processing quality of a workpiece is improved;
2. due to the arrangement of the mounting groove, the stability of the blade after mounting can be improved, the probability of shaking of the blade in the cutting process is reduced, and the processing quality of a workpiece is improved;
3. the arrangement of the liquid injection port, the first through hole, the first flow guide hole, the second through hole and the second flow guide hole can play a good cooling and lubricating effect on the blade in the cutting process, can improve the processing quality of a workpiece, and plays a certain degree of protection effect on the blade.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of a second chamfer blade and a second boring blade in the present invention.
Fig. 3 is a schematic sectional structure diagram of the present invention.
Fig. 4 shows the stepped hole processed by the present invention.
In the figure, 1, a second cutter head; 2. a first cutter head; 3. a knife handle; 4. a third right-angle groove; 5. a first right-angle groove; 6. a second right-angle groove; 7. fastening screws; 8. a first boring blade; 9. a first chamfer blade; 10. a second chamfer insert; 11. a second boring blade; 12. a third bore insert; 13. a third chamfer blade; 14. mounting grooves; 15. a circular groove; 16. a liquid injection port; 17. a first through hole; 18. a first flow guide hole; 19. a second through hole; 20. and the second diversion hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the boring cutter is formed by fixedly connecting a second cutter head 1, a first cutter head 2 and a cutter handle 3 which are coaxial in sequence, wherein the diameter of the second cutter head 1 is smaller than that of the first cutter head 2. The outer side wall of the second tool bit 1 is provided with four third right-angle grooves 4 which are communicated with two ends of the second tool bit 1, and the four third right-angle grooves 4 are uniformly distributed around the axis of the second tool bit 1. Two first right angle grooves 5 and two second right angle grooves 6 have been seted up on the lateral wall of first tool bit 2 respectively, and first right angle groove 5 and second right angle groove 6 all communicate with the terminal surface that first tool bit 2 is close to second tool bit 1, and first right angle groove 5 and second right angle groove 6 are even interval distribution around the axis of first tool bit 2, and the position of first right angle groove 5 and the position of second right angle groove 6 all aligns with the position of third right angle groove 4.
Referring to fig. 1 and 2, a first boring insert 8 and a first chamfering insert 9 for machining an a-hole are mounted on each of the two first right-angle grooves 5 by a fastening screw 7. And a second chamfering blade 10 for chamfering the opening of the B hole is arranged on each of the two second right-angle grooves 6 through a fastening screw 7. Wherein, all install the second bore hole blade 11 that is used for cutting the downthehole lateral wall of B on two third right-angle grooves 4, all install the third bore hole blade 12 and the third chamfer blade 13 that are used for processing the C hole on two other third right-angle grooves 4. In the process of moving towards the stepped hole on the workpiece by the boring cutter rotating at a high speed, the first boring blade 8 firstly cuts the inner side wall of the hole A, then the second boring blade 11 sequentially cuts the inner side wall of the hole B, and the third boring blade 12 cuts the inner side wall of the hole C. When the boring cutter is about to reach a final cutting station, the first chamfering blade 9, the second chamfering blade 10 and the third chamfering blade 13 perform chamfering cutting on the hole A opening, the hole B opening and the hole C opening respectively, so that the operation that an operator frequently replaces the boring cutter is omitted, the machining efficiency of a workpiece is improved, and the machining quality of the workpiece is improved.
The first boring insert 8, the first chamfer insert 9, the second chamfer insert 10, the second boring insert 11, the third boring insert 12 and the third chamfer insert 13 are all triangular in shape. The first cutter head 2 is provided with mounting grooves 14 abutted against the side walls of the first boring blade 8, the first chamfering blade 9 and the second chamfering blade 10, and the second cutter head 1 is also provided with mounting grooves 14 abutted against the side walls of the second boring blade 11, the third boring blade 12 and the third chamfering blade 13. In order to reduce the probability of cracking caused by stress at the end corner of the mounting groove 14, a round groove 15 for enabling the mounting groove 14 to be smooth in transition is formed at the end corner.
Referring to fig. 2 and 3, a through liquid injection port 16 is formed in the tool holder 3 along the axial direction of the tool holder, a through first through hole 17 is also formed in the first tool bit 2 along the axial direction of the tool holder, the first through hole 17 is communicated with the liquid injection port 16, and first flow guide holes 18 communicated with the first through hole 17 are formed in the first right-angle groove 5 and the second right-angle groove 6. And a second through hole 19 which is through is also formed in the second tool bit 1 along the axial direction of the second tool bit, the second through hole 19 is communicated with the first through hole 17, and second flow guide holes 20 which are communicated with the second through hole 19 are formed in the four third right-angle grooves 4. In the process of processing a workpiece by the boring cutter, cooling liquid continuously enters the first through hole 17 and the second through hole 19 from the liquid injection port 16, and finally flows out from the first flow guide hole 18 and the second flow guide hole 20, so that the boring cutter has excellent cooling and lubricating effects in the cutting process.
The implementation principle of the embodiment is as follows: in the process of moving towards the stepped hole on the workpiece by the boring cutter rotating at a high speed, the first boring blade 8 firstly cuts the inner side wall of the hole A, then the second boring blade 11 sequentially cuts the inner side wall of the hole B, and the third boring blade 12 cuts the inner side wall of the hole C. When the boring cutter is about to reach a final cutting station, the first chamfering blade 9, the second chamfering blade 10 and the third chamfering blade 13 perform chamfering cutting on the hole A opening, the hole B opening and the hole C opening respectively, so that the operation that an operator frequently replaces the boring cutter is omitted, the machining efficiency of a workpiece is improved, and the machining quality of the workpiece is improved.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. The utility model provides a boring cutter, includes handle of a knife (3) and first tool bit (2) of linking firmly on handle of a knife (3), its characterized in that: the outer side wall of the first tool bit (2) is provided with two first right-angle grooves (5), and the first right-angle grooves (5) are provided with a first boring blade (8) and a first chamfering blade (9) for machining a hole A; the outer side wall of the first tool bit (2) is also provided with two second right-angle grooves (6), and second chamfering blades (10) for chamfering B holes are mounted on the second right-angle grooves (6); keep away from first tool bit (2) one of handle of a knife (3) is served and is linked firmly second tool bit (1) with first tool bit (2) coaxial line, and second tool bit (1) diameter is less than first tool bit (2) diameter, be equipped with four third right angle grooves (4) on the lateral wall of second tool bit (1), wherein all install on two third right angle grooves (4) and be used for carrying out the second bore hole blade (11) that process to the B hole, all install on two other third right angle grooves (4) and be used for carrying out the third bore hole blade (12) and third chamfer blade (13) that process to the C hole.
2. The boring tool as claimed in claim 1, wherein: the first tool bit (2) and the second tool bit (1) are provided with mounting grooves (14) which are abutted against the side walls of the first boring blade (8), the first chamfering blade (9), the second chamfering blade (10), the second boring blade (11), the third boring blade (12) and the third chamfering blade (13).
3. The boring tool as claimed in claim 2, wherein: circular grooves (15) are formed in the end corners of the mounting grooves (14).
4. The boring tool as claimed in claim 1, wherein: the two first right-angle grooves (5) are circumferentially and uniformly distributed on the outer side wall of the first tool bit (2), the two second right-angle grooves (6) are also circumferentially and uniformly distributed on the outer side wall of the first tool bit (2), and the first right-angle grooves (5) and the second right-angle grooves (6) are arranged at intervals; the four third right-angle grooves (4) are circumferentially and uniformly distributed on the outer side wall of the second tool bit (1).
5. The boring tool as claimed in claim 4, wherein: first right-angle groove (5) with second right-angle groove (6) all with first tool bit (2) keep away from a terminal surface intercommunication of handle of a knife (3), four third right-angle groove (4) communicate the both ends face of second tool bit (1) and align with first right-angle groove (5) and second right-angle groove (6).
6. The boring tool as claimed in claim 1, wherein: one end, far away from the first boring blade (8), of the first right-angle groove (5) is in arc transition arrangement; and one end of the second right-angle groove (6) far away from the second chamfering blade (10) is also in arc transition arrangement.
7. The boring tool as claimed in claim 1, wherein: a liquid injection port (16) for injecting cooling liquid is formed in the tool shank (3), a first through hole (17) communicated with the liquid injection port (16) and a first flow guide hole (18) communicated with the first through hole (17) are formed in the first tool bit (2); and a second through hole (19) communicated with the first through hole (17) and a second flow guide hole (20) communicated with the second through hole (19) are formed in the second cutter head (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920526029.1U CN209811258U (en) | 2019-04-17 | 2019-04-17 | Boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920526029.1U CN209811258U (en) | 2019-04-17 | 2019-04-17 | Boring cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209811258U true CN209811258U (en) | 2019-12-20 |
Family
ID=68880441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920526029.1U Active CN209811258U (en) | 2019-04-17 | 2019-04-17 | Boring cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209811258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604510A (en) * | 2020-05-26 | 2020-09-01 | 河北师范大学 | A combined tool for deep groove machining of stainless steel |
-
2019
- 2019-04-17 CN CN201920526029.1U patent/CN209811258U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604510A (en) * | 2020-05-26 | 2020-09-01 | 河北师范大学 | A combined tool for deep groove machining of stainless steel |
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