CN217801776U

CN217801776U - Clamping mechanism

Info

Publication number: CN217801776U
Application number: CN202221779533.0U
Authority: CN
Inventors: 朱国宏; 晏毓; 李志彬; 李涛
Original assignee: Lhotse Robot Suzhou Co ltd
Current assignee: Lhotse Robot Suzhou Co ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-11-15
Anticipated expiration: 2032-07-11

Abstract

The clamping mechanism comprises a pushing cylinder, a first clamping jaw and a second clamping jaw, wherein a pushing block is arranged on a pushing rod of the pushing cylinder, one end of the first clamping jaw is fixedly installed on a first moving block, one end of the second clamping jaw is fixedly installed on a second moving block, the first moving block and the second moving block jointly penetrate through a first cross rod, two ends of the first cross rod are fixedly installed on a first fixing block and a second fixing block, a first spring is sleeved on the first cross rod between the first moving block and the first fixing block, and a second spring is sleeved on the first cross rod between the second moving block and the second fixing block. By the clamping mechanism of the utility model, the range of the fusion space between the clamping jaws is greatly adjusted, and the clamping mechanism is suitable for clamping objects with various specifications; and the clamping force is stable, thereby avoiding causing secondary damage to the clamped object.

Description

Clamping mechanism

Technical Field

The utility model relates to a mechanical automation equipment field especially relates to a fixture.

Background

In the operation process of automatic detection, a clamping mechanism is usually used to clamp, fix or transport a detection object, for example, precision parts such as bearing rings, collars and the like of various annular parts, and with the development of science and technology and industry, the market demand for such parts is gradually increasing, and the detection demand for various parts with different specifications is met.

In the automatic testing process, traditional bearing detector uses bolt and screw rod regulation cooperation usually, forms the holding chamber that only is applicable to single specification bearing, and the bearing that only is applicable to a specification detects, and the anchor clamps that use model is single usually, and the power that the centre gripping produced is inhomogeneous, causes secondary damage to this kind of accurate spare part of bearing easily.

SUMMERY OF THE UTILITY MODEL

The utility model provides a be provided in view of above technical problem, provide a fixture, accommodation space between the clamping jaw is big, can adapt to the multiple centre gripping object of centre gripping, and the clamping-process applys stable clamping-force to the centre gripping object, avoids causing secondary damage to the centre gripping object when the centre gripping, has improved the practicality.

According to the utility model discloses an aspect provides a fixture, and it includes: the push cylinder, the first clamping jaw and the second clamping jaw are arranged on a push rod of the push cylinder, one end of the first clamping jaw is fixedly mounted on the first moving block, one end of the second clamping jaw is fixedly mounted on the second moving block, the first moving block and the second moving block jointly penetrate through the first cross rod, two ends of the first cross rod are fixedly mounted on the first fixing block and the second fixing block, the first cross rod is sleeved with the first spring between the first moving block and the first fixing block, and the first cross rod is sleeved with the second spring between the second moving block and the second fixing block.

According to a second aspect of the embodiments of the present invention, there is provided a clamping mechanism as in the first aspect, wherein the pushing block is a plate specifically having an equilateral triangle shape.

With the structure, the tip of the equilateral triangle pushing block is inserted between the two clamping jaws, and the pushing block is continuously pushed to enable the two clamping jaws to slide on the cross rod so as to open the accommodating space.

According to the utility model discloses the third aspect of the embodiment provides a fixture as first aspect, and its fixture still has first bearing and second bearing, and first bearing fixed mounting is on first movable block, and second bearing fixed mounting is on the second movable block.

By adopting the scheme, two sides of the push block can be in contact with the two bearings in the pushing process, so that the bearings can rotate to avoid being blocked, and the smooth pushing action of the push block is promoted.

According to the utility model discloses in the fourth aspect of the embodiment, provide a fixture like the third aspect, its first movable block and second movable block pass the second horizontal pole jointly, and the both ends fixed mounting of second horizontal pole is on first fixed block and second fixed block.

According to the utility model discloses in the fifth aspect of the embodiment, provide a fixture like the fourth aspect, its second horizontal pole overlaps between first movable block and first fixed block and is established and have the third spring, and the second horizontal pole overlaps between second movable block and second fixed block and is established and have the fourth spring.

By adopting the structure, the clamping jaw continuously outputs more stable constant force through the synergistic effect of the four groups of springs.

According to a sixth aspect of the embodiments of the present invention, there is provided a clamping mechanism as in the fifth aspect, wherein the pushing block is a plate specifically in the shape of an equilateral triangle or an isosceles trapezoid.

According to a seventh aspect of embodiments of the present invention, there is provided a clamping mechanism as in the first aspect, wherein the first jaw is provided with a first protection pad and the second jaw is provided with a second protection pad.

By adopting the structure, the clamping object can be firmly clamped, and the damage to the surface of the clamping object of the precise part can be further avoided in the clamping process.

The beneficial effects of the utility model reside in that: can slide so that the adaptation of adjusting the accommodation space and centre gripping multiple object on first horizontal pole through two clamping jaws, impel two clamping jaws to exert stable clamping-force to the centre gripping object through the restoring force of two springs, avoid causing the damage to the centre gripping object.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the invention may be employed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and constitute a part of this specification, illustrate preferred embodiments of the invention and together with the description serve to explain the principles of the invention and in which like reference numerals refer to like elements throughout.

In the drawings:

fig. 1 is a schematic perspective view of the clamping mechanism of the present invention;

fig. 2 is a schematic view of a clamping jaw closed state of the clamping mechanism of the invention;

fig. 3 is a top view of the clamping mechanism of the present invention.

Detailed Description

The foregoing and other features of the invention will become apparent from the following description taken in conjunction with the accompanying drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the invention may be employed, it being understood that the invention is not limited to the embodiments described.

The utility model provides a fixture, figure 1 is the utility model discloses fixture's spatial structure schematic diagram, figure 2 is its clamping jaw closed state schematic diagram, and figure 3 is its top view. As shown in the figure, this fixture 01 includes push cylinder 1, first clamping jaw 2 and second clamping jaw 3, be provided with ejector pad 4 on the push rod of push cylinder 1, the one end fixed mounting of first clamping jaw 2 is on first movable block 5, the one end fixed mounting of second clamping jaw 3 is on second movable block 6, first movable block 5 and second movable block 6 pass first horizontal pole 7 jointly, the both ends fixed mounting of first horizontal pole 7 is on first fixed block 8 and second fixed block 9, first horizontal pole 7 overlaps between first movable block 5 and first fixed block 8 and is established and have first spring 10, first horizontal pole 7 overlaps between second movable block 6 and second fixed block 9 and is established and have second spring 11. According to a preferred embodiment of the present embodiment, the pushing block 4 is a plate in an equilateral triangle, one equilateral side of the pushing block 4 is connected with the pushing rod of the pushing cylinder 1 through a mounting block, so that the vertex angle of the pushing block 4 is aligned between the first clamping jaw 2 and the second clamping jaw 3, when the pushing cylinder 1 pushes the pushing block 4 to advance, the pushing block 4 is inserted between the two clamping jaws and pushes the first clamping jaw 2 and the second clamping jaw 3 to slide towards two sides on the first cross bar 7, and the first clamping jaw 2 and the second clamping jaw 3 can clamp clamping objects of various specifications after being opened; after a clamping object enters an accommodating space between the two clamping jaws, the pushing cylinder 1 drives the pushing block 4 to retract, the first clamping jaw 2 and the second clamping jaw 3 are turned from opening to closing through restoring forces of the first spring 10 and the second spring 11, the restoring forces of the first spring 10 and the second spring 11 can ensure that the first clamping jaw 2 and the second clamping jaw 3 can adjust the size of the closed space to clamp the clamping object according to the specification sizes of different clamping objects, and the clamping object can be prevented from being damaged due to stable output of the restoring forces of the springs.

According to a preferred embodiment of the present invention, referring to fig. 1 and 2, the clamping mechanism 01 further has a first bearing 12 and a second bearing 13, the first bearing 12 is fixedly mounted on the first moving block 5, and the second bearing 13 is fixedly mounted on the second moving block 6. Further, the first moving block 5 and the second moving block 6 also pass through the second cross bar 14 together, and two ends of the second cross bar 14 are also fixedly mounted on the first fixing block 8 and the second fixing block 9. The second cross bar 14 is provided with a third spring 15 between the first moving block 5 and the first fixed block 8, and the second cross bar 14 is provided with a fourth spring 16 between the second moving block 6 and the second fixed block 9. According to an embodiment of the present embodiment, the pushing block 4 may be an isosceles trapezoid block instead of an equilateral triangle block. When the pushing cylinder 1 pushes the two oblique edges of the pushing block 4 to be respectively contacted with the first bearing 12 and the second bearing 13, the first bearing 12 and the second bearing 13 respectively rotate to prevent the locking; meanwhile, with the continuous pushing of the pushing block 4, the two bevel edges of the pushing block 4 push the distance between the first bearing 12 and the second bearing 13 to change, so as to drive the first moving block 5 and the second moving block 6 to slide towards two sides on the first cross rod 7 and the second cross rod 14, and the first clamping jaw 2 fixed on the first moving block 5 and the second clamping jaw 3 fixed on the second moving block 6 are also opened so as to clamp various clamping objects to be clamped.

Referring to fig. 1 and 2, according to a preferred embodiment of the present invention, the first jaw 2 is provided with a first pad 21, and the second jaw 3 is provided with a second pad 31. The first protection pad 21 and the second protection pad 31 may be made of rubber, so that friction force may be increased during the clamping process to ensure firm clamping, and surfaces of tight parts such as bearings may be further prevented from being damaged.

The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, and many features and advantages of these embodiments will be apparent from this detailed description. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the embodiments of the invention to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to.

Claims

1. The clamping mechanism is characterized by comprising a pushing cylinder, a first clamping jaw and a second clamping jaw, wherein a pushing block is arranged on a pushing rod of the pushing cylinder, one end of the first clamping jaw is fixedly mounted on a first moving block, one end of the second clamping jaw is fixedly mounted on a second moving block, the first moving block and the second moving block jointly penetrate through a first cross rod, two ends of the first cross rod are fixedly mounted on a first fixing block and a second fixing block, a first spring is sleeved on the first cross rod between the first moving block and the first fixing block, and a second spring is sleeved on the first cross rod between the second moving block and the second fixing block.

2. Clamping mechanism according to claim 1, wherein the pushing block is a plate, in particular an equilateral triangle.

3. The clamping mechanism of claim 1 further comprising a first bearing and a second bearing, said first bearing being fixedly mounted on the first movable block and said second bearing being fixedly mounted on the second movable block.

4. The clamping mechanism as claimed in claim 3, wherein the first moving block and the second moving block jointly pass through a second cross bar, and both ends of the second cross bar are fixedly mounted on the first fixed block and the second fixed block.

5. The clamping mechanism as recited in claim 4, wherein a third spring is sleeved on the second cross bar between the first moving block and the first fixed block, and a fourth spring is sleeved on the second cross bar between the second moving block and the second fixed block.

6. Clamping mechanism according to claim 5, wherein the pushing block is a plate, in particular in the shape of an equilateral triangle or an isosceles trapezoid.

7. The clamping mechanism of claim 1, wherein said first jaw is provided with a first pad and said second jaw is provided with a second pad.