CN216879754U

CN216879754U - Grinding machine tool spindle clamp

Info

Publication number: CN216879754U
Application number: CN202220285082.9U
Authority: CN
Inventors: 贺从中; 李赛平; 黄志兵; 刘乐泉
Original assignee: Shenzhen Zengchuang Automation Machinery Co ltd
Current assignee: Shenzhen Zengchuang Automation Machinery Co ltd
Priority date: 2022-02-11
Filing date: 2022-02-11
Publication date: 2022-07-05
Anticipated expiration: 2032-02-11

Abstract

The utility model relates to the technical field of grinding machine tools, in particular to a grinding machine tool spindle clamp, which comprises three L-shaped fixing plates which are symmetrically distributed in a central manner, wherein C-shaped slide rails with downward openings are fixed on the opposite sides of the three L-shaped fixing plates close to the bottom ends, three arc-shaped connecting pieces are fixed between the outer walls of the three C-shaped slide rails, the three arc-shaped connecting pieces are arranged at equal heights and coaxially, a tower-shaped slide block is connected in a sliding groove of each C-shaped slide rail in a sliding manner, and clamping rods are fixed at the bottom ends of the tower-shaped slide blocks. When the locking mechanism is loosened, the stopping rod is pulled outwards to enable the top end of the stopping rod to be disengaged from the non-return teeth.

Description

Grinding machine tool spindle clamp

Technical Field

The utility model relates to the technical field of grinding machine tools, in particular to a spindle clamp of a grinding machine tool.

Background

The grinder is a machine for grinding and pulverizing raw materials. The main shaft of the grinding machine is the main part of the grinding machine and requires accurate installation to ensure the stability of the work.

The existing grinding machine spindle mounting structure comprises a machine base, wherein a front plate, a middle plate and a rear plate are arranged on the machine base, the front side face of the front plate is used for being connected with a cylinder barrel, the front plate is connected with the cylinder barrel to form an end cover of the cylinder barrel, mounting holes are formed in the outer side faces, opposite to the middle plate and the rear plate, of the middle plate, bearings are mounted in the two mounting holes, a spindle is mounted on the machine base, and the spindle penetrates through inner holes of the two bearings and is connected with inner rings of the bearings.

The existing grinding machine spindle is generally required to be disassembled and assembled through various wrenches during installation and replacement, and the spindle with a specially-made shape is more complicated to replace, so that a novel grinding machine spindle clamp which is quick to disassemble and assemble is required.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a spindle clamp for a grinding machine to solve the above problems.

The technical scheme of the utility model is as follows: a grinding machine tool spindle clamp comprises three L-shaped fixed plates which are distributed in a central symmetry mode, wherein C-shaped slide rails with downward openings are fixed on the opposite sides close to the bottom ends of the three L-shaped fixed plates, three arc-shaped connecting pieces are fixed between the outer walls of the three C-shaped slide rails, the three arc-shaped connecting pieces are equal in height and distributed coaxially, tower-shaped slide blocks are connected in sliding grooves of the three C-shaped slide rails in a sliding mode, clamping rods are fixed at the bottom ends of the tower-shaped slide blocks, pressing rods are fixed at the top ends of the tower-shaped slide blocks, rectangular holes matched with the pressing rods in diameter are formed in the bottoms of the C-shaped slide rails, tightening wheels which are integrally formed into a circular ring structure are connected with the upper surface of each arc-shaped connecting piece in a rotating mode, variable-diameter grooves attached to the pressing rods are formed in the inner sides of the tightening wheels, non-return hinged teeth distributed equidistantly are formed in the outer circumferential walls of the tightening wheels, and a base is arranged on one L-shaped fixed plate far away from the tightening wheels, the middle of articulated seat is rotated and is linked there is the stopping pole, and be fixed with the extension spring between the inner arc side of stopping pole and the L shape fixed plate, the inboard shape of supporting rod and the outer wall shape looks block of main shaft body, thereby can be when using need carry out the centre gripping to the main shaft body, only need clockwise slowly rotate the tightening wheel, draw together three compressing rod to the center constantly under the effect in the reducing groove of tightening wheel inboard this moment, meanwhile, drive the three supporting rod of its below and remove to the centre, with fixed with middle main shaft body, only need outwards stimulate the stopping pole when not hard up to make its top and non return tooth break away from the block can.

Preferably: it is three the circumference outer wall of arc connecting piece is close to the middle part and all opens there is the direction ditch, and the lower surface of tightening wheel is close to the edge and all is fixed with the L shape slider with the mutual adaptation of direction ditch to can drive the tightening wheel pivoted time, ensure that the tightening wheel tightly pastes the upper surface at the arc connecting piece all the time, and keep rotating with the axle center with the arc connecting piece.

Preferably: it is three the mounting platform has all been reserved on the top of L shape fixed plate, and all opened two bar holes on the mounting platform to can make the installation of whole device more convenient when using, and control whole fixture and also can not influence the centre gripping effect of device when diving pressurized.

Preferably: one side that tower type slider is close to place side L shape fixed plate all is fixed with reset spring, and the tank bottom of C shape slide rail is located reset spring's end fixing and has the spring baffle to can be when using, when the tightening wheel is in antiport, can drive three tower type slider and three supporting rod under three reset spring's effect and keep away from middle main shaft body.

Preferably: the tower type slider includes that two rectangle squares of variation in size stack forms, and big rectangle square sliding link connects in the inside of C shape slide rail, and the upper and lower surface of big rectangle square is close to four corners department and all inlays and be equipped with the ball to can tighten up the wheel and drive tower type slider pivoted more laborsaving.

Preferably: the upper surface of tightening wheel is close to circumference edge and is fixed with one to three rectangle frame that is central symmetric distribution, and has pegged graft in one of them rectangle frame has the round bar for it is more laborsaving when revolving to twist tightening wheel, has also improved the effect of tightening up.

Preferably: arc-shaped grooves are reserved on the opposite sides of the three clamping rods, and anti-skid surfaces are arranged in the arc-shaped grooves, so that the clamping and anti-skid effects of the device are improved.

Preferably: the outer wall of the main shaft body is sleeved with the inner hexagonal pipe sleeve close to the top end, the outer wall of the inner hexagonal pipe sleeve is arranged to be of a circular tubular structure, and the outer wall of the inner hexagonal pipe sleeve is provided with the anti-skidding synapse, so that the outer wall of the main shaft body which is shaped like a hexagonal prism is matched with the inner side shape of the clamping rod when the clamping device is used, the superposition area of clamping surfaces is improved, the static friction force is increased, and the clamping effect is improved.

The utility model provides a grinding machine tool spindle clamp through improvement, compared with the prior art, the grinding machine tool spindle clamp has the following improvements and advantages:

one is as follows: when the spindle body needs to be clamped during operation, the tightening wheel only needs to be rotated slowly clockwise, at the moment, the three pressing rods are continuously drawn close to the center under the action of the reducing groove on the inner side of the tightening wheel, meanwhile, the three clamping rods below the tightening wheel are driven to move towards the middle to fix the spindle body in the middle, and when the spindle body is loosened, the stopping rod only needs to be pulled outwards to enable the top end of the stopping rod to be disengaged from the stopping tooth;

the second step is as follows: according to the utility model, the L-shaped sliding block and the guide groove which are arranged below the tightening wheel can ensure that the tightening wheel is always tightly attached to the upper surface of the arc-shaped connecting piece and keeps rotating coaxially with the arc-shaped connecting piece when the tightening wheel is driven to rotate;

and the third step: according to the utility model, the inner hexagonal pipe sleeve is arranged, so that the outer wall of the spindle body which is in a hexagonal prism shape can be matched with the inner side shape of the clamping rod when in use, the overlapping area of the clamping surfaces is increased, the static friction force is increased, and the clamping effect is improved.

Drawings

The utility model is further explained below with reference to the figures and examples:

FIG. 1 is a schematic view of the overall structure of the present invention in clamping;

FIG. 2 is a schematic top perspective view of the present invention in its relaxed configuration;

FIG. 3 is a schematic view of the assembled structure of the present invention;

FIG. 4 is a schematic perspective view of the toggle mechanism of the present invention;

fig. 5 is a schematic perspective view of a second embodiment of the present invention.

Description of the reference numerals:

1. an L-shaped fixing plate; 2. an arc-shaped connecting piece; 3. a clamping rod; 4. a main shaft body; 5. a C-shaped slide rail; 6. a strip-shaped hole; 7. a hold down bar; 8. a reducing groove; 9. a non-return tooth; 10. a tightening wheel; 11. a backstop rod; 12. a tension spring; 13. a hinged seat; 14. a rectangular hole; 15. a return spring; 16. a tower-shaped slider; 17. a spring baffle; 18. a round bar; 19. a rectangular frame; 20. an anti-slip surface; 21. an inner hexagonal pipe sleeve; 22. and a guide groove.

Detailed Description

The present invention is described in detail below, and technical solutions in the embodiments of the present invention are clearly and completely described, 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.

Example one

The utility model provides a grinding machine tool spindle clamp through improvement, and the technical scheme of the utility model is as follows:

as shown in figures 1-4, a grinding machine tool spindle clamp comprises three L-shaped fixed plates 1 which are distributed in a central symmetry manner, wherein C-shaped slide rails 5 with downward openings are fixed on the opposite sides of the three L-shaped fixed plates 1 close to the bottom ends, three arc-shaped connecting pieces 2 are fixed between the outer walls of the three C-shaped slide rails 5, the three arc-shaped connecting pieces 2 are equal in height and are distributed coaxially, tower-shaped sliders 16 are connected in sliding grooves of the three C-shaped slide rails 5 in a sliding mode, clamping rods 3 are fixed at the bottom ends of the tower-shaped sliders 16, pressing rods 7 are fixed at the top ends of the tower-shaped sliders 16, rectangular holes 14 which are matched with the diameters of the pressing rods 7 are formed in the groove bottoms of the C-shaped slide rails 5, tightening wheels 10 which are integrally formed into a circular ring structure are rotationally linked to the upper surfaces of the arc-shaped connecting pieces 2, reducing grooves 8 which are attached to the pressing rods 7 are formed in the inner sides of the tightening wheels 10, check teeth 9 which are distributed equidistantly are formed on the circumferential outer walls of the tightening wheels 10, and one side of one of the L-shaped fixing plates 1 far away from the tightening wheel 10 is provided with a hinged seat 13, the middle of the hinged seat 13 is rotatably connected with a retaining rod 11, a tension spring 12 is fixed between the inner arc side of the retaining rod 11 and the L-shaped fixing plate 1, the inner side shape of the clamping rod 3 is clamped with the outer wall shape of the main shaft body 4, so that when the main shaft body 4 needs to be clamped in use, the tightening wheel 10 only needs to be rotated clockwise slowly, at the moment, the three pressing rods 7 are continuously drawn close to the center under the action of the reducing grooves 8 on the inner side of the tightening wheel 10, meanwhile, the three clamping rods 3 below the clamping rods are driven to move towards the middle, so that the main shaft body 4 in the middle is fixed, and when the clamping rod 11 is loosened, the top end of the clamping rod 11 is separated from the non-return teeth 9 by pulling outwards.

Further, the circumference outer wall of three arc connecting piece 2 all opens near the middle part has the guide way 22, and tightens up the lower surface of wheel 10 and be close to the L shape slider that the edge all was fixed with the mutual adaptation with guide way 22 to can ensure to tighten up the wheel 10 and tightly paste the upper surface at arc connecting piece 2 all the time when driving the rotation of tightening wheel 10, and keep rotating with the axle center with arc connecting piece 2.

Further: all leaves the mounting platform on the top of three L shape fixed plate 1, and all opens on the mounting platform and have two bar holes 6 to can be when using, make the installation of whole device more convenient, and control whole fixture and also can not influence the centre gripping effect of device when diving pressurized.

Further: one side of the tower-shaped sliding block 16 close to the L-shaped fixing plate 1 at the side is fixed with a return spring 15, and the end part of the C-shaped sliding rail 5 at the bottom of the return spring 15 is fixed with a spring baffle 17, so that when the tightening wheel 10 rotates reversely, the three tower-shaped sliding blocks 16 and the three clamping rods 3 can be driven to keep away from the main shaft body 4 in the middle under the action of the three return springs 15.

Further: the tower-shaped sliding block 16 comprises two rectangular blocks with different sizes which are overlapped, the large rectangular blocks are connected inside the C-shaped sliding rail 5 in a sliding mode, and balls are embedded on the upper surface and the lower surface of the large rectangular blocks close to four corners, so that labor can be saved when the tightening wheel 10 drives the tower-shaped sliding block 16 to rotate.

Further: one to three (one in this embodiment) rectangular frames 19 are fixed on the upper surface of the tightening wheel 10 near the circumferential edge, and the circular rod 18 is inserted into one of the rectangular frames 19, so that the tightening wheel 10 is more labor-saving in screwing, and the tightening effect is improved.

The working principle is as follows: when the spindle body 4 needs to be clamped in use, the tightening wheel 10 only needs to be slowly rotated clockwise, at the moment, the three pressing rods 7 are continuously drawn close to the center under the action of the reducing grooves 8 on the inner side of the tightening wheel 10, meanwhile, the three clamping rods 3 below the tightening wheel are driven to move towards the middle to fix the spindle body 4 in the middle, and when the spindle body is loosened, the stopping rod 11 only needs to be pulled outwards to enable the top end of the stopping rod to be disengaged from the stopping tooth 9; at this time, under the action of the three return springs 15, the three tower-shaped sliders 16 and the three clamping rods 3 can be driven to be away from the main shaft body 4 in the middle.

Example two:

based on the spindle clamp of the grinding machine tool provided by the first embodiment of the application, the second embodiment of the application provides another spindle clamp of the grinding machine tool; that is, the clamping section of the main shaft body 4 under this embodiment is in a prismatic configuration, this embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.

A second embodiment of the present invention will be further described with reference to fig. 5 and the following description.

The clamping device further comprises arc-shaped grooves reserved on the opposite sides of the three clamping rods 3, and anti-skid surfaces 20 are arranged in the arc-shaped grooves, so that the clamping and anti-skid effects of the clamping device are improved.

Further: the outer wall of the main shaft body 4 is sleeved with the inner hexagonal pipe sleeve 21 close to the top end, the outer wall of the inner hexagonal pipe sleeve 21 is of a circular tubular structure, and the outer wall of the inner hexagonal pipe sleeve 21 is provided with the anti-skidding synapse, so that the outer wall of the main shaft body 4 which is shaped like a hexagonal prism can be matched with the inner side shape of the clamping rod 3 when in use, the coincidence area of clamping surfaces is improved, the static friction force is increased, and the clamping effect is improved.

Claims

1. The utility model provides a lapping machine tool spindle clamp, includes three L shape fixed plate (1) that are central symmetric distribution each other, three one side that L shape fixed plate (1) is relative is close to the bottom and all is fixed with C shape slide rail (5) that open side down, its characterized in that: three arc-shaped connecting pieces (2) are fixed between the outer walls of the three C-shaped sliding rails (5), the three arc-shaped connecting pieces (2) are equal in height and are coaxially distributed, tower-shaped sliding blocks (16) are connected in sliding grooves of the three C-shaped sliding rails (5) in a sliding mode, clamping rods (3) are fixed at the bottom ends of the tower-shaped sliding blocks (16), pressing rods (7) are fixed at the top ends of the tower-shaped sliding blocks (16), rectangular holes (14) matched with the pressing rods (7) in diameter are formed in the bottoms of the C-shaped sliding rails (5), tightening wheels (10) which are integrally in a circular ring structure are rotatably linked on the upper surfaces of the arc-shaped connecting pieces (2), variable-diameter grooves (8) attached to the pressing rods (7) are formed in the inner sides of the tightening wheels (10), non-return teeth (9) are distributed on the outer circumferential walls of the tightening wheels (10) at equal intervals, and a base (13) is arranged on one side, far away from the tightening wheels (10), of one L-shaped fixing plate (1), the middle of the hinged seat (13) is rotatably connected with a retaining rod (11), a tension spring (12) is fixed between the inner arc side of the retaining rod (11) and the L-shaped fixing plate (1), and the inner side shape of the clamping rod (3) is clamped with the outer wall shape of the main shaft body (4).

2. A grinding machine spindle holder according to claim 1, wherein: the circumference outer wall of three arc connecting piece (2) is close to the middle part and all opens guide groove (22), and the lower surface of tightening wheel (10) is close to the edge and all is fixed with the L shape slider of mutually supporting with guide groove (22).

3. A grinding machine spindle holder according to claim 1, wherein: the top of three L shape fixed plate (1) all reserves has mounting platform, and all opens two bar holes (6) on the mounting platform.

4. A grinding machine spindle holder according to claim 1, wherein: and a return spring (15) is fixed on one side of the tower-shaped sliding block (16) close to the L-shaped fixing plate (1), and a spring baffle (17) is fixed at the end part of the C-shaped sliding rail (5) at the bottom of the return spring (15).

5. A grinding machine spindle holder according to claim 4, wherein: the tower-shaped sliding block (16) is formed by superposing two rectangular blocks with different sizes, the large rectangular block is connected inside the C-shaped sliding rail (5) in a sliding mode, and balls are embedded on the upper surface and the lower surface of the large rectangular block close to four corners.

6. A grinding machine spindle holder according to claim 1, wherein: one to three rectangular frames (19) which are distributed in a central symmetry manner are fixed on the upper surface of the tightening wheel (10) close to the circumferential edge, and a round rod (18) is inserted into one rectangular frame (19).

7. A grinding machine spindle holder according to claim 1, wherein: arc-shaped grooves are reserved on the opposite sides of the three clamping rods (3), and anti-skid surfaces (20) are arranged in the arc-shaped grooves, so that the clamping and anti-skid effects of the device are improved.

8. A grinding machine spindle holder according to claim 7, wherein: an inner hexagonal pipe sleeve (21) is sleeved on the outer wall of the main shaft body (4) close to the top end, the outer wall of the inner hexagonal pipe sleeve (21) is arranged to be a circular tubular structure, and an anti-skidding synapse is arranged on the outer wall of the inner hexagonal pipe sleeve (21).