CN215699782U

CN215699782U - Chuck for broaching machine

Info

Publication number: CN215699782U
Application number: CN202121979044.5U
Authority: CN
Inventors: 尤春银
Original assignee: Taizhou Chengchun Automation Equipment Co ltd
Current assignee: Taizhou Chengchun Automation Equipment Co ltd
Priority date: 2021-08-21
Filing date: 2021-08-21
Publication date: 2022-02-01
Anticipated expiration: 2031-08-21

Abstract

The utility model discloses a chuck for a broaching machine, which relates to the technical field of machinery, and the technical scheme is as follows: including the chuck body, the last centre gripping hole that is used for installing the cutter that has of chuck body, it is provided with the fitting pin to slide on the chuck body, the outside of chuck body slides and is provided with the lock sleeve, the one end of fitting pin can stretch into the centre gripping hole and support tightly in the lateral wall of cutter, the other end of fitting pin can support tightly in the inside wall of lock sleeve, the inside wall of lock sleeve has been seted up and has been dodged the groove, the one end of fitting pin can withdraw from the centre gripping hole, the other end of fitting pin can stretch into and dodge the groove, this chuck easy operation, the cutter loading and unloading is convenient.

Description

Chuck for broaching machine

Technical Field

The utility model relates to the technical field of machinery, in particular to a chuck for a broaching machine.

Background

The chuck of vertical broaching machine cutter has contained up to twelve parts in, and the processing, assembly, change and the save of every part all directly or indirectly have led to the increase of the amount of labour and cost, and the operation of loading and unloading cutter is very loaded down with trivial details, leads to needing longer time, has reduced holistic machining efficiency, and the improper operation still can appear the cutter landing damage blade, or the cutter causes the injury to the operator, has the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a chuck for a broaching machine, which has the advantage of convenient tool assembly and disassembly.

The technical purpose of the utility model is realized by the following technical scheme: including the chuck body, the last centre gripping hole that is used for installing the cutter that has of chuck body, it is provided with the fitting pin to slide on the chuck body, the outside of chuck body slides and is provided with the lock sleeve, the one end of fitting pin can stretch into the centre gripping hole just support tightly in the lateral wall of cutter, the other end of fitting pin can support tightly in the inside wall of lock sleeve, the groove of dodging has been seted up to the inside wall of lock sleeve, the one end of fitting pin can withdraw from the centre gripping hole, the other end of fitting pin can stretch into dodge the groove.

Through the technical scheme, when the cutter is installed, an operator can firstly put the cutter into the clamping hole, so that one end of the locking pin abuts against the outer side wall of the cutter, the other end of the locking pin abuts against the inner side wall of the locking sleeve, and the cutter is locked and fixed in the clamping hole; when the cutter is dismounted, an operator can slide the locking sleeve through external force, the avoiding groove is aligned to the locking pin, one end of the locking pin withdraws from the clamping hole, the other end of the locking pin extends into the avoiding groove, the cutter in the clamping hole is in a loose state, and the user can dismount the cutter; the locking sleeve slides to lock and loosen the cutter, so that the operation is simple and the cutter is convenient to assemble and disassemble.

Preferably, the outer side of the chuck body is provided with a first anti-sleeve in a sliding manner, the outer side of the chuck body is provided with a second anti-sleeve in a sliding manner, the outer side of the chuck body is sleeved with a spring, one end of the spring abuts against the lower end face of the first anti-sleeve, the other end of the spring abuts against the upper end face of the second anti-sleeve, and the upper end face of the first anti-sleeve abuts against the lower end face of the locking sleeve.

Through above-mentioned technical scheme, under the supporting role of spring, the position of lock sleeve remains unchanged, makes the cutter can be stably in the locking state, makes the lock sleeve slide under the exogenic action, makes the spring be in the compression state after taking place deformation, and the cutter is in the state of loosening, and the operator alright easily pulls down the cutter.

Preferably, the chuck body is in threaded connection with a nut, and the upper end face of the nut can abut against the lower end face of the second anti-sleeve.

Through the technical scheme, the nut is fixed with the chuck body, and the nut supports the second protective sleeve and limits the position of the second protective sleeve, so that the end part of the spring can always abut against the upper end face of the second protective sleeve.

Preferably, the chuck body is provided with a guide hole, the locking pin is arranged in the guide hole in a sliding manner, and the guide hole is communicated with the clamping hole.

Through above-mentioned technical scheme, guiding hole intercommunication centre gripping hole, the fitting pin can slide along the guiding hole, and the tip of fitting pin can stretch into in the centre gripping hole and with support tightly in the lateral wall of cutter.

Preferably, a limiting groove is formed in the chuck body, a limiting shaft is arranged on the locking pin, and the side wall of the limiting shaft can abut against the bottom surface of the limiting groove.

Through above-mentioned technical scheme, the lateral wall of spacing axle can lean on with the bottom surface counterbalance of spacing groove to this position to the fitting pin is restricted, prevents that the fitting pin excessively stretches into to the centre gripping downthehole under the condition of not putting into the cutter in the centre gripping hole.

Preferably, the end part of the locking pin is provided with a first arc surface, the end part of the cutter is provided with a second arc surface, the first arc surface abuts against the second arc surface, the end part of the locking pin is provided with a third arc surface, the outer side wall of the cutter is provided with a fourth arc surface, and the third arc surface abuts against the fourth arc surface.

According to the technical scheme, when the cutter is placed into the clamping hole, the first cambered surface abuts against the second cambered surface, the cutter can push the locking pin to slide along the guide hole, one end of the locking pin abuts against the outer side wall of the cutter, and the other end of the locking pin abuts against the inner side wall of the locking sleeve; when the tool needs to be taken out of the clamping hole, the third cambered surface abuts against the fourth cambered surface, the tool can push the locking pin to slide along the guide hole, one end of the locking pin is made to exit from the clamping hole, and the other end of the locking pin stretches into the avoiding groove.

Preferably, the chuck body is internally provided with a knock pin, and the lower end surface of the cutter can abut against the outer side wall of the knock pin.

Through the technical scheme, the lower end face of the cutter is abutted against the outer side wall of the ejector pin, so that the position of the cutter is limited, and the supporting force of the ejector pin to the cutter is more stable when the cutter is machined.

Preferably, the outer side wall of the chuck body extends outwards along the circumferential direction to form a flange, and the lower end surface of the flange can abut against the upper end surface of the locking sleeve.

Through above-mentioned technical scheme, the lower terminal surface of flange supports with the up end of lock sleeve and leans on to this carries on spacingly to the lock sleeve, prevents that the lock sleeve from breaking away from the chuck body.

Preferably, the positioning groove is formed in the upper end face of the chuck body, a positioning strip is arranged in the positioning groove, a positioning surface is arranged on the side wall of the cutter, and the outer side wall of the positioning strip is attached to the positioning surface and can be circumferentially positioned relative to the cutter.

Through above-mentioned technical scheme, the lateral wall and the locating surface of location strip paste mutually, and to cutter circumference location, can prevent that the cutter from rotating, improve the stability of cutter.

Preferably, the lower end of the chuck body is in threaded connection with a lock nut.

Through above-mentioned technical scheme, lock nut can fix this chuck on the broaching machine.

In summary, compared with the prior art, the beneficial effects of the utility model are as follows:

1. accessible fitting pin and lock sleeve cooperation alright fix the cutter locking in the centre gripping hole, dismantle the cutter only need the operator through external force messenger lock sleeve slip, will dodge the groove and aim at the fitting pin, the downthehole cutter of centre gripping just is in the unclamped state, easy operation, and the cutter loading and unloading is convenient.

Drawings

FIG. 1 is a sectional view of the embodiment;

FIG. 2 is a partial cross-sectional view of the embodiment;

FIG. 3 is a schematic structural diagram of an embodiment;

FIG. 4 is a schematic structural view of a chuck body according to an embodiment;

FIG. 5 is a schematic structural view of a locking pin and a limiting shaft according to an embodiment;

FIG. 6 is a schematic view of the structure of the cutter according to the embodiment;

fig. 7 is an enlarged view of a portion a of fig. 6.

Reference numerals: 1. a chuck body; 2. a clamping hole; 3. a locking pin; 4. a locking sleeve; 5. an avoidance groove; 6. preventing sleeving the first; 7. a second anti-nesting part; 8. a spring; 9. a nut; 10. a guide hole; 11. a limiting groove; 12. a limiting shaft; 13. a first arc surface; 14. a second cambered surface; 15. a third cambered surface; 16. a cambered surface is four; 17. a fifth cambered surface; 18. a groove; 19. a knock pin; 20. a flange; 21. positioning a groove; 22. a positioning bar; 23. positioning the surface; 24. locking the nut; 25. a cutter; 26. mounting holes; 27. a receiving cavity.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A chuck for a broaching machine, as shown in figures 1 to 7, comprises a chuck body 1, wherein the chuck body 1 is provided with a clamping hole 2 for mounting a cutter 25, and the clamping hole 2 is matched with the cutter 25.

The sliding locking pin 3 that is provided with on the chuck body 1, the guiding hole 10 has been seted up on the chuck body 1, and the locking pin 3 slides and sets up in guiding hole 10, and guiding hole 10 intercommunication centre gripping hole 2, preferentially, guiding hole 10 has a plurality of and along circumference evenly distributed, and the locking pin 3 slides and sets up in arbitrary guiding hole 10, also can slide respectively in a plurality of guiding hole 10 and set up corresponding locking pin 3 certainly.

The outside of chuck body 1 slides and is provided with lock sleeve 4, and the one end of fitting pin 3 can stretch into in the grip hole 2 and support tightly in the lateral wall of cutter 25, and the other end of fitting pin 3 can support tightly in the inside wall of lock sleeve 4, and the inside wall of lock sleeve 4 has been seted up and has been dodged groove 5, and the one end of fitting pin 3 can withdraw from grip hole 2, and the other end of fitting pin 3 can stretch into and dodge groove 5.

The outside of chuck body 1 slides and is provided with and prevents set one 6, the outside of chuck body 1 slides and is provided with and prevents set two 7, prevent set one 6 cover and locate the outside of preventing set two 7, prevent set one 6 and prevent set two 7 cooperation and be formed with and hold chamber 27, the outside cover of chuck body 1 is equipped with spring 8, spring 8 is located and holds the intracavity 27, spring 8's one end is supported with the lower terminal surface of preventing set one 6 and is leaned on, spring 8's the other end supports with the up end of preventing set two 7 and leans on, the up end of preventing set one 6 supports with the lower terminal surface of lock sleeve 4 and leans on, threaded connection has nut 9 on chuck body 1, the up end of nut 9 can support with the lower terminal surface of preventing set two 7 and lean on.

The chuck body 1 is provided with a plurality of limiting grooves 11, preferably, the limiting grooves 11 are communicated with guide holes 10, the locking pin 3 is provided with a limiting shaft 12, the side wall of the limiting shaft 12 can be abutted against the bottom surface of the limiting groove 11,

the end part of the locking pin 3 is provided with a first arc surface 13, the end part of the cutter 25 is provided with a second arc surface 14, the first arc surface 13 abuts against the second arc surface 14, the end part of the locking pin 3 is provided with a third arc surface 15, the outer side wall of the cutter 25 is provided with a fourth arc surface 16, the third arc surface 15 abuts against the fourth arc surface 16, the cutter 25 is provided with a groove 18, the outer side wall of the cutter 25 is provided with a fifth arc surface 17, the fourth arc surface 16 and the fifth arc surface 17 are respectively positioned at two sides of the groove 18, the fifth arc surface 17 can abut against the first arc surface 13, the cutter 25 is in a locking state, and the end part of the locking pin 3 abuts against the bottom surface of the groove 18.

The mounting hole 26 has been seted up on the chuck body 1, and the mounting hole 26 runs through the chuck body 1, is provided with the knock pin 19 in the chuck body 1, and the knock pin 19 sets up in the mounting hole 26 and passes the centre gripping hole 2, and the lower terminal surface of cutter 25 can lean on with the lateral wall of knock pin 19.

The outer side wall of the chuck body 1 extends outwards along the circumferential direction to form a flange 20, and the lower end surface of the flange 20 can be abutted against the upper end surface of the locking sleeve 4.

Positioning groove 21 has been seted up to chuck body 1's up end, is provided with location strip 22 in the positioning groove 21, and the lateral wall of cutter 25 is provided with locating surface 23, and the lateral wall of location strip 22 leans on and can fix a position cutter 25 circumference with locating surface 23 mutually.

The lower end of the chuck body 1 is connected with a locking nut 24 through threads, and the locking nut 24 is used for fixing the chuck on a corresponding mounting substrate.

The working principle of the chuck for the broaching machine is as follows:

when the cutter 25 is installed, firstly, the cutter 25 is rotated to ensure that the positioning surface 23 on the cutter 25 can be attached to the outer side wall of the positioning strip 22, then the cutter 25 is placed into the clamping hole 2, the first cambered surface 13 on the cutter 25 is abutted to the second cambered surface 14 on the locking pin 3, the cutter 25 can push the locking pin 3 to slide along the guide hole 10 until one end of the locking pin 3 abuts against the inner side wall of the locking sleeve 4, the other end of the locking pin 3 abuts against the outer side wall of the cutter 25, and the lower end of the cutter 25 abuts against the outer side wall of the top pin 19; when dismantling cutter 25, the operator need make the lock sleeve 4 slide and dodge groove 5 and aim at guiding hole 10 through external force, spring 8 is in compression state after receiving external force extrusion, the operator 25 of taking again this moment, cambered surface three 15 on the fitting pin 3 offsets with cambered surface four 16 on the cutter 25 and leans on, cutter 25 can promote fitting pin 3 and slide along guiding hole 10, make the one end of fitting pin 3 withdraw from centre gripping hole 2, the other end of fitting pin 3 stretches into and dodges in the groove 5, cutter 25 just can follow and take out in the centre gripping hole 2.

The above description is intended to be illustrative of the present invention and not to limit the scope of the utility model, which is defined by the claims appended hereto.

Claims

1. A chuck for broaching machines, comprising a chuck body (1), characterized in that: the clamp comprises a clamp body (1) and is characterized in that a clamping hole (2) for mounting a cutter (25) is formed in the clamp body (1), a locking pin (3) is arranged on the clamp body (1) in a sliding mode, a locking sleeve (4) is arranged on the outer side of the clamp body (1) in a sliding mode, one end of the locking pin (3) can stretch into the clamping hole (2) and abut against the outer side wall of the cutter (25), the other end of the locking pin (3) can abut against the inner side wall of the locking sleeve (4), an avoiding groove (5) is formed in the inner side wall of the locking sleeve (4), one end of the locking pin (3) can be withdrawn from the clamping hole (2), and the other end of the locking pin (3) can stretch into the avoiding groove (5).

2. A chuck for use with a broaching machine as recited in claim 1, wherein: the outside of chuck body (1) slides and is provided with and prevents set one (6), the outside of chuck body (1) slides and is provided with and prevents set two (7), the outside cover of chuck body (1) is equipped with spring (8), the one end of spring (8) with prevent that the lower terminal surface of set one (6) offsets and leans on, the other end of spring (8) with the up end that prevents set two (7) offsets and leans on, prevent the up end of set one (6) with the lower terminal surface of lock sleeve (4) offsets and leans on.

3. A chuck for use with a broaching machine as recited in claim 2, wherein: the chuck is characterized in that a nut (9) is connected to the chuck body (1) in a threaded mode, and the upper end face of the nut (9) can abut against the lower end face of the second anti-sleeve (7).

4. A chuck for use with a broaching machine as recited in claim 1, wherein: the chuck is characterized in that a guide hole (10) is formed in the chuck body (1), the locking pin (3) is arranged in the guide hole (10) in a sliding mode, and the guide hole (10) is communicated with the clamping hole (2).

5. A chuck for use with a broaching machine as recited in claim 1, wherein: the chuck is characterized in that a limiting groove (11) is formed in the chuck body (1), a limiting shaft (12) is arranged on the locking pin (3), and the side wall of the limiting shaft (12) can abut against the bottom surface of the limiting groove (11).

6. A chuck for use with a broaching machine as recited in claim 1, wherein: the tip of fitting pin (3) is provided with cambered surface one (13), the tip of cutter (25) is provided with cambered surface two (14), cambered surface one (13) with cambered surface two (14) are supported and are leaned on, the tip of fitting pin (3) is provided with cambered surface three (15), the lateral wall of cutter (25) is provided with cambered surface four (16), cambered surface three (15) with cambered surface four (16) are supported and lean on.

7. A chuck for use with a broaching machine as recited in claim 1, wherein: the clamp is characterized in that a jacking pin (19) is arranged in the clamp body (1), and the lower end face of the cutter (25) can abut against the outer side wall of the jacking pin (19).

8. A chuck for use with a broaching machine as recited in claim 1, wherein: the outer side wall of the chuck body (1) extends outwards along the circumferential direction to form a flange (20), and the lower end face of the flange (20) can abut against the upper end face of the locking sleeve (4).

9. A chuck for use with a broaching machine as recited in claim 1, wherein: positioning groove (21) have been seted up to the up end of chuck body (1), be provided with location strip (22) in positioning groove (21), the lateral wall of cutter (25) is provided with locating surface (23), the lateral wall of location strip (22) with locating surface (23) paste mutually and lean on and can be right cutter (25) circumference location.

10. A chuck for use with a broaching machine as recited in claim 1, wherein: the lower end of the chuck body (1) is in threaded connection with a locking nut (24).