CN216138175U

CN216138175U - Hard alloy milling cutter for machining and positioning

Info

Publication number: CN216138175U
Application number: CN202121921715.2U
Authority: CN
Inventors: 周益锋
Original assignee: Changzhou Boyu Cnc Tool Co ltd
Current assignee: Changzhou Boyu Cnc Tool Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-03-29
Anticipated expiration: 2031-08-17

Abstract

The utility model belongs to the technical field of precision machining cutters, and particularly relates to a hard alloy milling cutter for machining and positioning, which comprises a cutter handle and a cutter head, wherein the cutter head is arranged at the end part of the cutter handle; the tool comprises a tool handle and a positioning square tube, wherein a mounting pin is fixed on the outer wall of the positioning square tube, a plurality of groups of elastic automatic alignment assemblies which are distributed at equal intervals along the circumferential direction are mounted on the inner wall of the positioning square tube, a positioning sleeve matched with the elastic automatic alignment assemblies is fixedly sleeved on the tool handle, the positioning sleeve is in a hollow round table shape, and the larger end of the positioning sleeve faces the tool bit; according to the hard alloy milling cutter, the cutter head is detachably designed, so that the cutter head can be conveniently replaced by a new cutter head when the cutter head is greatly abraded, the convenience is realized, and the production cost is reduced; the arrangement of the positioning sleeve, the positioning square tube and the elastic automatic alignment assembly can improve the accuracy of the cutter during installation, ensure that the axis of the cutter handle is consistent with the axis of the cutter holder on the milling machine, and is favorable for improving the machining precision and the yield.

Description

Hard alloy milling cutter for machining and positioning

Technical Field

The utility model belongs to the technical field of precision machining, and particularly relates to a hard alloy milling cutter for machining and positioning.

Background

The precision machining, the machining precision is 10-0.1 micron, the surface roughness is under 0.1 micron processing, the common processing method is diamond turning, diamond boring, honing, grinding, super finishing, abrasive belt grinding and mirror surface grinding, etc., diamond turning and diamond boring are all cutting by polycrystalline diamond cutter, honing is to finish the hole mainly by using the oilstone (also called honing bar) inlaid on the honing head, grinding is to finish the processing surface by using the abrasive grain coated or pressed on the grinding tool, through the relative motion of the grinding tool and the workpiece under certain pressure.

Milling cutters are important tools for precision machining, which are rotary tools for milling machining having one or more cutter teeth, each of which in turn intermittently cuts off the allowance of a workpiece during operation, and are mainly used for machining planes, steps, grooves, formed surfaces, cutting off workpieces, and the like on milling machines.

When the traditional milling cutter is used, the milling cutter is usually clamped on a cutter holder of the milling machine, the accuracy of milling cutter installation is difficult to guarantee, the positioning is insufficient, and the quality of part milling is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides the hard alloy milling cutter for machining and positioning, which has the characteristics of convenience in use and reliability in installation.

In order to achieve the purpose, the utility model provides the following technical scheme: a hard alloy milling cutter for machining and positioning comprises a cutter handle and a cutter head, wherein the cutter head is detachably arranged at the end part of the cutter handle; the tool comprises a tool holder and a tool bit, and is characterized by further comprising a positioning square tube, wherein mounting feet are fixed on the outer wall of the positioning square tube, a plurality of groups of elastic automatic alignment assemblies which are distributed at equal intervals along the circumferential direction are mounted on the inner wall of the positioning square tube, a positioning sleeve matched with the elastic automatic alignment assemblies is fixedly sleeved on the tool holder, the positioning sleeve is in a hollow round table shape, and the larger end of the positioning sleeve faces the tool bit; the automatic subassembly of alignment of elasticity includes upset support arm and elastic support subassembly, the one end of upset support arm articulates the universal wheel is installed to the inner wall, the other end of location side pipe, elastic support subassembly one end with the inner wall of location side pipe is articulated, the other end with the upset support arm is articulated.

As a preferred technical scheme of the utility model, four groups of elastic automatic alignment assemblies are distributed at equal intervals along the circumferential direction.

As a preferred technical scheme of the utility model, the elastic support assembly comprises a telescopic rod and a telescopic spring, one end of the telescopic rod is hinged with the inner wall of the positioning square tube, the other end of the telescopic rod is hinged with the turnover support arm, two ends of the telescopic rod are both fixed with limit rings, and the telescopic spring is sleeved on the telescopic rod and is positioned between the two telescopic springs.

As a preferred technical scheme of the utility model, the screwdriver further comprises a bolt and a nut, a positioning rod is fixed at the end part of the tool bit, a positioning groove capable of accommodating the positioning rod is formed in the end surface of the tool handle, a second through hole communicated with the positioning groove is further formed in the tool handle, a first through hole is formed in the positioning rod, and the nut is screwed on the extending end of the bolt after the bolt penetrates through the first through hole and the second through hole.

As a preferred embodiment of the present invention, four auxiliary stabilizer bars are fixed to an end surface of the cutter head, the auxiliary stabilizer bars being equally spaced apart from each other in a circumferential direction, and an auxiliary stabilizer groove for accommodating the auxiliary stabilizer bars is formed in an end surface of the cutter handle.

Compared with the prior art, the utility model has the beneficial effects that: according to the hard alloy milling cutter, the cutter head is detachably designed, so that the cutter head can be conveniently replaced by a new cutter head when the cutter head is greatly abraded, the convenience is realized, and the production cost is reduced; the arrangement of the positioning sleeve, the positioning square tube and the elastic automatic alignment assembly can improve the accuracy of the cutter during installation, ensure that the axis of the cutter handle is consistent with the axis of the cutter holder on the milling machine, and is favorable for improving the machining precision and the yield.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 4 is an enlarged view of the automatic resilient alignment assembly of FIG. 2 according to the present invention;

in the figure: 1. a knife handle; 2. a cutter head; 3. positioning the sleeve; 4. positioning a square tube; 5. mounting a foot; 6. an elastic automatic alignment assembly; 7. positioning a rod; 8. positioning a groove; 9. punching a hole I; 10. punching a hole II; 11. a bolt; 12. a nut; 13. an auxiliary stabilizer bar; 14. an auxiliary stabilizing groove; 15. turning over the supporting arm; 16. a universal wheel; 17. a telescopic rod; 18. a limiting ring; 19. a telescoping spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a hard alloy milling cutter for machining and positioning comprises a cutter handle 1 and a cutter head 2, wherein the cutter head 2 is detachably arranged at the end part of the cutter handle 1; the tool also comprises a positioning square tube 4, wherein mounting feet 5 are fixed on the outer wall of the positioning square tube 4, a plurality of groups of elastic automatic alignment assemblies 6 which are distributed at equal intervals along the circumferential direction are mounted on the inner wall of the positioning square tube 4, a positioning sleeve 3 matched with the elastic automatic alignment assemblies 6 is fixedly sleeved on the tool shank 1, the positioning sleeve 3 is in a hollow round table shape, and the larger end of the positioning sleeve 3 faces the tool bit 2; the automatic elastic alignment assembly 6 comprises a turnover supporting arm 15 and an elastic supporting assembly, one end of the turnover supporting arm 15 is hinged on the inner wall of the positioning square tube 4, the other end of the turnover supporting arm is provided with a universal wheel 16, one end of the elastic supporting assembly is hinged with the inner wall of the positioning square tube 4, the other end of the elastic supporting assembly is hinged with the turnover supporting arm 15, when in use, the tool bit 2 is detachably arranged at the end part of the tool holder 1, the positioning square tube 4 is fixed at the tool holder of a milling machine by a known means through a mounting pin 5, then the tool holder 1 penetrates through the positioning square tube 4 to be fixed in the tool holder, when the tool holder 1 penetrates through the positioning square tube 4, the turnover supporting arm 15 drives the universal wheel 16 to turn under the elastic action of the elastic supporting assembly, the universal wheel 16 is ensured to be tightly attached to the outer wall of the positioning sleeve 3, the outer wall of the positioning sleeve 3 is in a hollow round table shape, the outer wall of the positioning sleeve is an inclined plane, and is matched with a plurality of automatic elastic alignment assemblies 6 which are distributed at equal intervals along the circumferential direction, the installation of the cutter can be positioned, the reliability of the installation of the cutter is ensured, and the milling precision is improved.

Specifically, as shown in fig. 1 and fig. 2, in this embodiment, four sets of elastic automatic alignment assemblies 6 are distributed at equal intervals along the circumferential direction, and are matched with the positioning sleeves 3, so that a better positioning effect can be achieved, the installation of the cutter is positioned, the reliability of the installation of the cutter is ensured, and the precision of milling is improved.

Specifically, according to fig. 1, fig. 2 and fig. 4 show, in this embodiment, the elastic support component includes telescopic link 17 and expanding spring 19, telescopic link 17 one end is articulated with the inner wall of location side pipe 4, the other end is articulated with upset support arm 15, both ends at telescopic link 17 all are fixed with spacing ring 18, expanding spring 19 cup joints on telescopic link 17 and is in between two expanding spring 19, telescopic link 17 is that two sections hollow cylinder components cup joint to form, under expanding spring 19's elastic force effect, can jack-up upset support arm 15, guarantee that universal wheel 16 hugs closely the outer wall of positioning sleeve 3, play reliable location effect.

Specifically, as shown in fig. 1 and fig. 3, in this embodiment, the tool further includes a bolt 11 and a nut 12, a positioning rod 7 is fixed at an end of the tool bit 2, a positioning groove 8 capable of accommodating the positioning rod 7 is formed in an end surface of the tool holder 1, a second through hole 10 communicated with the positioning groove 8 is further formed in the tool holder 1, a first through hole 9 is formed in the positioning rod 7, the nut 12 is screwed on an extending end of the bolt 11 after the bolt 11 penetrates through the first through hole 9 and the second through hole 10, the tool bit 2 is installed by embedding the positioning rod 7 into the positioning groove 8, the bolt 11 then penetrates through the first through hole 9 and the second through hole 10, and the nut 12 is screwed on the extending end of the bolt 11 after the bolt penetrates through the first through hole 9 and the second through hole 10.

Specifically, as shown in fig. 1 and fig. 3, in this embodiment, four auxiliary stabilizer bars 13 are fixed to the end surface of the tool bit 2, the auxiliary stabilizer bars 13 are distributed at equal intervals along the circumferential direction, an auxiliary stabilizing groove 14 capable of accommodating the auxiliary stabilizer bars 13 is formed in the end surface of the tool holder 1, when the tool bit 2 is mounted, the positioning rod 7 is embedded into the positioning groove 8, and the auxiliary stabilizer bars 13 are also embedded into the auxiliary stabilizing groove 14, so that the mounting firmness of the tool bit 2 is further ensured, and the tool bit 2 is prevented from accidentally rotating relative to the tool holder 1 when in use.

The working principle and the using process of the utility model are as follows: when the milling cutter is used, the cutter head 2 is detachably arranged at the end part of the cutter handle 1, the positioning rod 7 is embedded into the positioning groove 8, the auxiliary stabilizing rod 13 is embedded into the auxiliary stabilizing groove 14, the bolt 11 penetrates through the first through hole 9 and the second through hole 10, and the nut 12 is screwed on the extending end of the bolt 11 after the bolt penetrates through the first through hole 9 and the second through hole 10;

the square pipe 4 of location passes through installation foot 5, utilize the well-known means to fix in the blade holder of milling machine, later make handle of a knife 1 run through the square pipe 4 of location to the blade holder in fix, when handle of a knife 1 runs through the square pipe 4 of location, under the elastic action of elastic support subassembly, make upset support arm 15 drive the upset of universal wheel 16, guarantee that universal wheel 16 hugs closely the outer wall of positioning sleeve 3, because positioning sleeve 3 is the cavity round platform form, its outer wall is the inclined plane, cooperate the automatic subassembly 6 of alignment of elasticity that the multiunit distributes along equidistance of circumferencial direction, can fix a position the installation of cutter, guarantee the reliability of cutter installation, improve milling process's precision.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a processing is carbide milling cutter for location, includes handle of a knife (1) and tool bit (2), its characterized in that: the cutter head (2) is detachably arranged at the end part of the cutter handle (1); the tool is characterized by further comprising a positioning square pipe (4), mounting feet (5) are fixed on the outer wall of the positioning square pipe (4), a plurality of groups of elastic automatic alignment assemblies (6) distributed at equal intervals along the circumferential direction are mounted on the inner wall of the positioning square pipe (4), a positioning sleeve (3) matched with the elastic automatic alignment assemblies (6) is fixedly sleeved on the tool shank (1), the positioning sleeve (3) is in a hollow round table shape, and the larger end of the positioning sleeve (3) faces the tool bit (2); automatic alignment subassembly of elasticity (6) is including upset support arm (15) and elastic support subassembly, the one end of upset support arm (15) articulates universal wheel (16) are installed to the inner wall, the other end of location side pipe (4), elastic support subassembly one end with the inner wall of location side pipe (4) is articulated, the other end with upset support arm (15) are articulated.

2. The cemented carbide milling cutter for machining positioning according to claim 1, wherein: the elastic automatic alignment assembly (6) is provided with four groups at equal intervals along the circumferential direction.

3. The cemented carbide milling cutter for machining positioning according to claim 1, wherein: the elastic support assembly comprises a telescopic rod (17) and telescopic springs (19), one end of the telescopic rod (17) is hinged to the inner wall of the square positioning pipe (4), the other end of the square positioning pipe is hinged to the turnover support arm (15), limiting rings (18) are fixed to the two ends of the telescopic rod (17), and the telescopic springs (19) are sleeved on the telescopic rod (17) and are located in two positions between the telescopic springs (19).

4. The cemented carbide milling cutter for machining positioning according to claim 1, wherein: still include bolt (11) and nut (12) the end fixing of tool bit (2) has locating lever (7) the terminal surface of handle of a knife (1) is seted up can hold locating lever (7) constant head tank (8), still seted up on handle of a knife (1) with communicating No. two perforation (10) of constant head tank (8) seted up No. one perforation (9) on locating lever (7), work as bolt (11) run through behind a perforation (9) and No. two perforation (10) close mounting nut (12) soon on its extension end.

5. The cemented carbide milling cutter for machining positioning according to claim 1, wherein: the end face of the tool bit (2) is fixedly provided with four auxiliary stabilizing bars (13) which are distributed at equal intervals along the circumferential direction, and the end face of the tool handle (1) is provided with auxiliary stabilizing grooves (14) which can accommodate the auxiliary stabilizing bars (13).