CN215698569U

CN215698569U - Novel eccentric rack clamp

Info

Publication number: CN215698569U
Application number: CN202122118365.2U
Authority: CN
Inventors: 章健
Original assignee: Jiangsu Jinshang Precision Rack Manufacturing Co ltd
Current assignee: Jiangsu Jinshang Precision Rack Manufacturing Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-02-01
Anticipated expiration: 2031-09-03

Abstract

The utility model belongs to the technical field of machining, and particularly relates to a novel eccentric rack clamp which aims at solving the problems that an existing eccentric rack is inconvenient to fix due to irregular shape, and offset is easy to occur during machining, so that the machining quality of the eccentric rack is seriously affected. The eccentric rack fixing device is reasonable in structural design, can be used for fixing and limiting the eccentric rack in the transverse and vertical directions, so that the eccentric rack is more firmly fixed, and the influence of deviation during processing on the processing quality is avoided.

Description

Novel eccentric rack clamp

Technical Field

The utility model relates to the technical field of machining, in particular to a novel eccentric rack clamp.

Background

The eccentric rack part plays an important role in mechanical transmission and is widely applied in the field of machinery. In order to ensure the accurate transmission of the eccentric rack, the high requirement is provided for the machining precision of the lathe, so that the eccentric rack needs to be limited and fixed by a clamp, and the machining accuracy of the lathe is ensured.

However, the existing eccentric rack is inconvenient to fix due to the irregular shape, and is easy to deviate during processing, so that the processing quality of the eccentric rack is seriously affected, and therefore a novel eccentric rack clamp is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that the existing eccentric rack is inconvenient to fix due to the irregular shape, the eccentric rack is easy to deviate during processing, and the processing quality of the eccentric rack is seriously influenced, and provides a novel eccentric rack clamp.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a novel eccentric rack clamp comprises a base, wherein a vertical plate is fixedly mounted at the top of the base, a top plate is fixedly mounted at the top of the vertical plate, an air cylinder is fixedly mounted at the bottom of the top plate, a transverse plate is fixedly mounted on an output shaft of the air cylinder, a first rack is fixedly mounted at the bottom of the transverse plate, a workbench is fixedly mounted at the top of the base, an eccentric rack is movably placed at the top of the workbench and is matched with the first rack, the top inner wall and the bottom inner wall of the workbench are rotatably provided with a same vertical shaft, a gear is fixedly sleeved at the outer side of the vertical shaft, two second racks are movably arranged in the workbench and are meshed with the two second racks, a clamping plate is fixedly mounted at one end, away from each other, of the two second racks, and the two clamping plates are movably abutted against the front side and the rear side of the eccentric rack respectively, the equal fixed mounting in one side that two splint kept away from each other has two springs, the top fixed mounting of workstation has two backup pads, and the one end that eccentric rack was kept away from to four springs is fixed mounting respectively in the backup pad that corresponds.

Preferably, the bottom fixed mounting of roof has two telescopic links, and two equal fixed mounting of telescopic link are at the top of diaphragm, conveniently lead the diaphragm, make its more stable that removes.

Preferably, the equal fixed mounting in one side that two splint kept away from each other has the guide bar, and the slide opening has all been seted up to one side of two backup pads, and two guide bars slide respectively and cup joint in the slide opening that corresponds, conveniently lead splint, avoid taking place the skew influence to the fixed of eccentric rack.

Preferably, two rectangular holes have been seted up at the top of workstation, and two splint slide respectively to cup joint in the rectangular hole that corresponds, and the convenience does not hinder the removal of splint, also can carry on spacingly to splint.

Preferably, the bottom of vertical axis extends to the below of workstation and fixed mounting has the hand wheel, the bottom fixed mounting of hand wheel has the handle, conveniently rotates vertical axis.

Preferably, two grooves are formed in the inner wall of the bottom of the workbench, moving rods are sleeved in the two grooves in a sliding mode, the two moving rods are fixedly installed at the bottoms of the corresponding second racks respectively, the second racks are guided conveniently, and the phenomenon that the gears are affected by deviation is avoided.

According to the novel eccentric rack clamp, the hand wheel is rotated, the hand wheel drives the vertical shaft and the gear to rotate, the gear drives the two second racks to be away from each other, the two second racks drive the two clamping plates to be away from each other, the spring is extruded at the moment, the eccentric rack is placed between the two clamping plates, the hand wheel is loosened, the two clamping plates are close to each other under the action of the spring, the front and back limiting fixing can be carried out on the eccentric rack, and therefore the eccentric rack can be fixed transversely;

according to the novel eccentric rack clamp, the cylinder is started, the output shaft of the cylinder drives the transverse plate and the first rack to move downwards, the first rack is enabled to move more stably under the guidance of the two telescopic rods until the first rack is meshed with the eccentric rack, so that the eccentric rack can be vertically fixed, and the phenomenon that the machining quality is affected by inclination during machining is avoided;

the eccentric rack fixing device is reasonable in structural design, can be used for fixing and limiting the eccentric rack in the transverse and vertical directions, so that the eccentric rack is more firmly fixed, and the influence of deviation during processing on the processing quality is avoided.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of a novel eccentric rack clamp according to the present invention;

fig. 2 is a front view of a novel eccentric rack clamp according to the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of a novel eccentric rack clamp according to the present invention;

fig. 4 is a schematic structural diagram of a portion B of a novel eccentric rack clamp according to the present invention.

In the figure: 1. a base; 2. a vertical plate; 3. a top plate; 4. a cylinder; 5. a telescopic rod; 6. a transverse plate; 7. a first rack; 8. a work table; 9. a vertical axis; 10. a hand wheel; 11. a support plate; 12. a guide bar; 13. a spring; 14. a gear; 15. a second rack; 16. an eccentric rack; 17. a splint; 18. a strip hole; 19. a groove; 20. the rod is moved.

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.

Referring to fig. 1-4, a novel eccentric rack clamp comprises a base 1, wherein a vertical plate 2 is fixedly installed at the top of the base 1, a top plate 3 is fixedly installed at the top of the vertical plate 2, an air cylinder 4 is fixedly installed at the bottom of the top plate 3, a transverse plate 6 is fixedly installed on an output shaft of the air cylinder 4, a first rack 7 is fixedly installed at the bottom of the transverse plate 6, four brackets are fixedly installed at the top of the base 1, the same workbench 8 is fixedly installed at the top of the four brackets, an eccentric rack 16 is movably placed at the top of the workbench 8, the eccentric rack 16 is matched with the first rack 7, the air cylinder 4 is started, the output shaft of the air cylinder 4 drives the transverse plate 6 to move downwards, the transverse plate 6 drives the first rack 7 to move downwards, so that the first rack 7 is meshed with the eccentric rack 16, thereby the eccentric rack 16 can be vertically fixed, the same vertical shaft 9 is rotatably installed on the inner wall at the top and the inner wall at the bottom of the workbench 8, a gear 14 is fixedly sleeved on the outer side of the vertical shaft 9, two second racks 15 are movably arranged in the workbench 8, the gear 14 is meshed with the two second racks 15, clamping plates 17 are fixedly arranged at the ends, far away from each other, of the two second racks 15, the two clamping plates 17 are respectively movably abutted to the front side and the rear side of the eccentric rack 16, two springs 13 are fixedly arranged at the sides, far away from each other, of the two clamping plates 17, two supporting plates 11 are fixedly arranged at the top of the workbench 8, one ends, far away from the eccentric rack 16, of the four springs 13 are respectively fixedly arranged on the corresponding supporting plates 11, a hand wheel 10 is rotated, the hand wheel 10 drives the vertical shaft 9 to rotate, the vertical shaft 9 drives the gear 14 to rotate, the gear 14 drives the two second racks 15 and the moving rod 20 to be far away from each other, the two second racks 15 drive the two clamping plates 17 to be far away from each other, the two clamping plates 17 extrude the corresponding springs 13, the eccentric rack 16 is placed between the two clamping plates 17, then the hand wheel 10 is released, and the two clamping plates 17 are close to each other under the action of the spring 13, so that the eccentric rack 16 can be fixed transversely.

According to the utility model, the two telescopic rods 5 are fixedly arranged at the bottom of the top plate 3, and the two telescopic rods 5 are both fixedly arranged at the top of the transverse plate 6, so that the transverse plate 6 is conveniently guided, and the movement of the transverse plate 6 is more stable.

In the utility model, the guide rods 12 are fixedly arranged on the sides of the two clamping plates 17 far away from each other, the slide holes are formed in one sides of the two supporting plates 11, and the two guide rods 12 are respectively sleeved in the corresponding slide holes in a sliding manner, so that the clamping plates 17 are conveniently guided, and the eccentric rack 16 is prevented from being fixed due to the influence of deviation.

In the utility model, the top of the workbench 8 is provided with two strip holes 18, and the two clamping plates 17 are respectively sleeved in the corresponding strip holes 18 in a sliding manner, so that the movement of the clamping plates 17 is not influenced conveniently, and the clamping plates 17 can be limited.

In the utility model, the bottom end of the vertical shaft 9 extends to the lower part of the workbench 8 and is fixedly provided with the hand wheel 10, and the bottom of the hand wheel 10 is fixedly provided with the handle, so that the vertical shaft 9 can be conveniently rotated.

In the utility model, two grooves 19 are formed in the inner wall of the bottom of the workbench 8, the moving rods 20 are sleeved in the two grooves 19 in a sliding manner, and the two moving rods 20 are respectively and fixedly installed at the bottoms of the corresponding second racks 15, so that the second racks 15 can be conveniently guided, and the influence of deviation on the meshing with the gears 14 is avoided.

In the utility model, when in use, the hand wheel 10 is rotated, the hand wheel 10 drives the vertical shaft 9 to rotate, the vertical shaft 9 drives the gear 14 to rotate, the gear 14 drives the two second racks 15 and the moving rods 20 to be away from each other, the two moving rods 20 slide in the corresponding grooves 19, so that the second racks 15 can be guided to avoid the influence of deviation on the meshing with the gear 14, the two second racks 15 drive the two clamping plates 17 to be away from each other, the two clamping plates 17 extrude the corresponding springs 13, the clamping plates 17 are guided by the long holes 18 and the guide rods 12 to avoid the influence of the deviation of the clamping plates 17 on the fixation of the eccentric racks 16, then the eccentric racks 16 are placed on the worktable 8 and placed between the two clamping plates 17, then the hand wheel 10 is loosened, the two clamping plates 17 are close to each other under the action of the springs 13, so that the eccentric racks 16 can be limited and fixed forwards and backwards, meanwhile, in order to avoid the eccentric rack 16 from tilting up and down, the cylinder 4 can be started, the output shaft of the cylinder 4 drives the transverse plate 6 to move down, the transverse plate 6 can move more stably through the guide of the two telescopic rods 5, the transverse plate 6 drives the first rack 7 to move down, the first rack 7 is meshed with the eccentric rack 16, the eccentric rack 16 can be fixed up and down, the up-and-down tilting during machining is avoided, the machining error is caused, the eccentric rack 16 can be fixed and limited horizontally and vertically, the fixation is firmer, and the influence on the machining quality caused by the offset during machining is avoided.

Claims

1. The utility model provides a novel eccentric rack clamp, includes base (1), its characterized in that, the top fixed mounting of base (1) has riser (2), the top fixed mounting of riser (2) has roof (3), the bottom fixed mounting of roof (3) has cylinder (4), fixed mounting has diaphragm (6) on the output shaft of cylinder (4), the bottom fixed mounting of diaphragm (6) has first rack (7), the top fixed mounting of base (1) has workstation (8), eccentric rack (16) have been placed in the top activity of workstation (8), eccentric rack (16) cooperate with first rack (7), rotate on the top inner wall of workstation (8) and on the bottom inner wall and install same vertical axis (9), gear (14) have been cup jointed fixedly in the outside of vertical axis (9), workstation (8) internalization is provided with two second racks (15), gear (14) and two second racks (15) mesh mutually, and the equal fixed mounting in one end of keeping away from each other of two second racks (15) has splint (17), and two splint (17) move about respectively the butt in the front and back side of eccentric rack (16), and the equal fixed mounting in one side of keeping away from each other of two splint (17) has two springs (13), the top fixed mounting of workstation (8) has two backup pads (11), and the one end difference fixed mounting that eccentric rack (16) was kept away from in four springs (13) is on backup pad (11) that correspond.

2. The novel eccentric rack clamp as claimed in claim 1, wherein two telescopic rods (5) are fixedly mounted at the bottom of the top plate (3), and both telescopic rods (5) are fixedly mounted at the top of the transverse plate (6).

3. The novel eccentric rack clamp as claimed in claim 1, wherein the guide rods (12) are fixedly mounted on the sides of the two clamping plates (17) far away from each other, slide holes are formed on one sides of the two supporting plates (11), and the two guide rods (12) are respectively slidably sleeved in the corresponding slide holes.

4. The novel eccentric rack clamp as claimed in claim 1, wherein the top of the workbench (8) is provided with two elongated holes (18), and the two clamping plates (17) are respectively slidably sleeved in the corresponding elongated holes (18).

5. The novel eccentric rack clamp as claimed in claim 1, wherein the bottom end of the vertical shaft (9) extends to the lower part of the workbench (8) and is fixedly provided with a hand wheel (10), and the bottom of the hand wheel (10) is fixedly provided with a handle.

6. The novel eccentric rack clamp as claimed in claim 1, wherein the inner wall of the bottom of the workbench (8) is provided with two grooves (19), the two grooves (19) are slidably sleeved with moving rods (20), and the two moving rods (20) are respectively and fixedly mounted at the bottom of the corresponding second rack (15).