CN213765561U

CN213765561U - Clamp

Info

Publication number: CN213765561U
Application number: CN202022763806.XU
Authority: CN
Inventors: 祝析真; 蔡伟; 范锦虎
Original assignee: Zhangjiagang Zhenzhi Automation Technology Co ltd
Current assignee: Zhangjiagang Zhenzhi Automation Technology Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-07-23
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a clamp, which comprises a base with a groove, a fixed block fixedly arranged on the base, a first slide block arranged in the groove and capable of sliding along the direction close to or far away from the fixed block, a second slide block which can slide into the groove and is used for abutting against and pushing the first slide block to slide and is close to the fixed block, a driving mechanism used for driving the second slide block to slide, and an elastic part arranged in the base and used for abutting against the first slide block, wherein the elastic part and the second slide block are respectively arranged at two sides of the first slide block along the sliding direction; when the first sliding block is used for being matched with the fixed block to clamp a workpiece, the elastic piece is integrally retracted into the base, the second sliding block is abutted between the first sliding block and the groove wall on one side of the groove, and the second sliding block is gradually narrowed in the direction of entering the groove. The utility model relates to an anchor clamps, the centre gripping effect is better, and the work piece vibrates lessly in the course of working, and processingquality is higher, and actuating mechanism's life is longer.

Description

Clamp

Technical Field

The utility model relates to a clamp.

Background

When the existing clamp clamps a workpiece, the clamping blocks on two sides are driven by a driving cylinder to synchronously approach and tightly abut against the workpiece. According to the clamp with the structure, the output shaft of the driving cylinder is directly connected to the clamping block, so that the vibration generated during the processing of a workpiece is large, and the vibration force directly acts on the output shaft, so that the clamping effect is relatively poor; meanwhile, the service life of the driving cylinder is short.

Disclosure of Invention

The utility model aims at providing an anchor clamps, the centre gripping effect is better, and the work piece vibrates lessly in the course of working, and processingquality is higher, and actuating mechanism's life is longer.

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

a clamp comprises a base with a groove, a fixed block fixedly arranged on the base, a first sliding block which can slide in the direction close to or far away from the fixed block and is arranged in the groove, a second sliding block which can slide into the groove and is used for abutting against and pushing the first sliding block to slide to be close to the fixed block, a driving mechanism used for driving the second sliding block to slide, and an elastic piece which is arranged in the base and is used for abutting against the first sliding block, wherein the elastic piece and the second sliding block are respectively arranged on two sides of the first sliding block in the sliding direction;

when the first sliding block is used for being matched with the fixed block to clamp a workpiece, the elastic piece is integrally retracted into the base, the second sliding block is tightly propped between the first sliding block and the groove wall on one side of the groove, and the second sliding block is gradually narrowed in the direction of entering the groove.

Preferably, the fixed block is arranged at the top of the base, the first sliding block comprises a first bottom part which is slidably arranged in the groove, and a first top part which is fixedly arranged at the upper end of the first bottom part and is used for being matched with the fixed block to clamp the workpiece, and the first top part is positioned above the groove;

when the first top is used for being matched with the fixing block to clamp the workpiece, the first bottom is abutted to the groove wall on the other side of the groove.

More preferably, a through hole is formed in the base, the through hole is located below the fixed block and penetrates through a groove wall on the other side of the groove, one end of the elastic member is fixedly arranged in the through hole, and the other end of the elastic member extends out of the groove wall on the other side of the groove and abuts against the first bottom.

More preferably, the fixture further comprises a guide shaft protruding from a wall of the groove on the other side of the groove, and the first bottom is sleeved on the guide shaft.

More preferably, the clamp further comprises a positioning block fixedly arranged on the base and used for abutting against one end of the workpiece, and the positioning block is arranged between the fixing block and the first top.

Preferably, the second sliding block is provided with a first side surface for abutting against the first sliding block and a second side surface for abutting against a groove wall on one side of the groove, and the first side surface and the second side surface form an angle with each other.

More preferably, the first side surface is perpendicular to the sliding direction of the first sliding block, the second side surface is parallel to the driving direction of the driving mechanism, and a groove wall on one side of the groove gradually inclines to be close to the first sliding block along the direction in which the second sliding block slides into the groove.

Preferably, the driving mechanism comprises a driving cylinder and a telescopic rod which is arranged in the driving cylinder and can be stretched and retracted along the length extension direction of the driving cylinder.

Preferably, the clamp further comprises a pressing block fixedly arranged on the top of the base and used for pressing the second sliding block.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model relates to a fixture, which drives a second slide block to slide into a groove through a driving mechanism, so that the second slide block is tightly propped between a first slide block and one side groove wall of the groove, and the first slide block is tightly propped on the other side groove wall of the groove, thereby realizing the fixation of the first slide block; the second sliding block is gradually narrowed along the direction of entering the groove, namely, one side of the second sliding block is abutted through the inclined plane, so that the fixing effect on the first sliding block is further improved, namely, the clamping effect between the first sliding block and the fixed block is improved; the vibration of the workpiece is small in the machining process, the machining quality is high, and the service life of the driving mechanism is long.

Drawings

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

FIG. 2 is a front view of FIG. 1;

fig. 3 is a cross-sectional view along line AA of fig. 2.

Wherein: 1. a base; 2. a fixed block; 3. a first slider; 31. a first bottom portion; 32. a first top portion; 4. a second slider; 41. a first side surface; 42. a second side surface; 5. a drive mechanism; 51. a drive cylinder; 52. a telescopic rod; 6. an elastic member; 7. a through hole; 8. a guide shaft; 9. positioning blocks; 10. briquetting; 11. and (5) a workpiece.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1-3, the above-mentioned clamp includes a base 1 having a groove, a fixed block 2 fixedly disposed on the base 1, a first slider 3 slidably disposed in the groove along a direction close to or away from the fixed block 2, a second slider 4 slidably disposed in the groove and configured to abut against and push the first slider 3 to slide close to the fixed block 2, and a driving mechanism 5 configured to drive the second slider 4 to slide. In the present embodiment, the groove penetrates the base 1 in the front-rear direction (i.e., the up-down direction in fig. 3).

In the present embodiment, the fixed block 2 is disposed on the top of the base 1, and a gap is provided between the fixed block 2 and the top of the groove wall on the left side of the groove (the left side in fig. 2 is the left side), and the gap is used for placing the workpiece 11. The fixture further comprises a positioning block 9 which is fixedly arranged on the base 1 and used for tightly abutting against one end of the workpiece 11, and the positioning block 9 is arranged between the fixing block 2 and the first sliding block 3. Through the arrangement, when the workpiece 11 is placed at the top of the base 1, two adjacent side surfaces of the workpiece 11 are respectively abutted to the fixed block 2 and the positioning block 9, so that the workpiece 11 is positioned.

The clamp further comprises an elastic piece 6 which is arranged in the base 1 and used for tightly abutting against the left side (the left side in fig. 2 is the left side) of the first sliding block 3, wherein the elastic piece 6 and the second sliding block 4 are respectively arranged on two sides of the first sliding block 3 along the sliding direction of the first sliding block, namely the second sliding block 4 is arranged on the right side (the right side in fig. 2 is the right side) of the first sliding block 3.

When the first sliding block 3 is used for being matched with the fixed block 2 to clamp the workpiece 11, the elastic part 6 is integrally retracted into the base 1, the second sliding block 4 is tightly propped between the first sliding block 3 and the groove wall on the right side of the groove (see fig. 2, the right side in fig. 2 is the right side), and the second sliding block 4 is gradually narrowed along the direction of entering the groove.

Referring to fig. 3, the second sliding block 4 has a first side surface 41 for abutting against the right side of the first sliding block 3 and a second side surface 42 for abutting against the groove wall of the right side of the groove, and the first side surface 41 and the second side surface 42 are at an angle to each other. The first side surface 41 is parallel to the right side surface of the first slider 3, and the second side surface 42 is parallel to the right groove wall of the groove.

In the present embodiment, the first side surface 41 is perpendicular to the sliding direction of the first slider 3 (i.e., the left-right direction in fig. 3), and the second side surface 42 is parallel to the driving direction of the driving mechanism 5. The right groove wall of the groove is gradually inclined to be close to the first sliding block 3 along the direction that the second sliding block 4 slides into the groove.

The driving mechanism 5 drives the second sliding block 4 to slide into the groove, so that the second sliding block 4 is tightly propped between the first sliding block 3 and the right groove wall of the groove, and the second sliding block 4 tightly props the first sliding block 3 on the left groove wall of the groove, thereby realizing the fixation of the first sliding block 3; the second sliding block 4 is gradually narrowed along the direction of entering the groove, namely the right side of the second sliding block 4 is abutted against the right side groove wall of the groove through the inclined surface, so that the fixing effect on the first sliding block 3 is further improved, namely the clamping effect between the first sliding block 3 and the fixed block 2 is improved; the vibration of the workpiece 11 is small in the machining process, the machining quality is high, and the service life of the driving mechanism 5 is long.

The first sliding block 3 includes a first bottom 31 slidably disposed in the groove along a left-right direction (i.e., a left-right direction in fig. 2), and a first top 32 fixedly disposed at an upper end of the first bottom 31 and adapted to cooperate with the fixing block 2 to clamp the workpiece 11, the first top 32 is integrally located above the groove, and a height of the first bottom 31 is the same as a height of a wall of the groove. The fixing block 2 and the first top 32 are used for cooperatively abutting against two opposite side surfaces of the workpiece 11, so that the workpiece 11 is clamped. In the present embodiment, the first bottom portion 31 and the first top portion 32 are integrally formed.

When the first top portion 32 is used for cooperating with the fixing block 2 to clamp the workpiece 11, the left side of the first bottom portion 31 abuts against the left side groove wall of the groove. The left side of the first bottom 31 is parallel to the left groove wall of the groove, and the right side of the first bottom 31 is parallel to the left side of the second sliding block 4. Referring to fig. 3, the left side of the first bottom 31 and the right side thereof are parallel to each other.

Referring to fig. 3, in this embodiment, a through hole 7 is formed in the base 1 and located below the fixed block 2 and used for penetrating through the left groove wall of the groove along the left-right direction, the left end of the elastic element 6 is fixed in the through hole 7, and the right end of the elastic element 6 can extend out of the left groove wall of the groove and abut against the left side of the first bottom 31. When the clamp clamps a workpiece 11 to be processed, the elastic piece 6 is integrally pressed into the through hole 7, and the left side of the first sliding block 3 abuts against the left side groove wall of the groove; after the workpiece 11 is machined, the second slide block 4 is withdrawn and reset, and the first slide block 3 slides rightwards under the action of the elastic force of the elastic piece 6 to open the die so as to take out the workpiece 11.

Referring to fig. 3, in this embodiment, the fixture further includes a guiding shaft 8 protruding to the right on the left side wall of the groove, and the first bottom 31 is sleeved on the guiding shaft 8.

In the present embodiment, the sliding directions of the elastic member 6, the guide shaft 8, and the first slider 3 are parallel to each other. The second slider 4 enters the groove from the space between the groove walls at the two sides of the groove.

The driving mechanism 5 includes a driving cylinder 51, and an expansion rod 52 that is disposed in the driving cylinder 51 and can expand and contract along the longitudinal extension direction thereof, and the expansion rod 52 is fixedly connected to the second slider 4.

The clamp further comprises a pressing block 10 which is fixedly arranged at the top of the base 1 and used for pressing the second sliding block 4. Referring to fig. 2, the fixing block 2 is disposed at the top of the left side of the groove, the pressing block 10 is disposed at the top of the right side of the groove, and the pressing block 10 is used for pressing the second sliding block 4 downward to limit the second sliding block 4 from the up-down direction.

The following specifically explains the working process of this embodiment:

when a workpiece 11 is clamped, the workpiece 11 is placed at the top of the base 1 and is tightly abutted between the fixed block 2 and the positioning block 9, the driving cylinder 51 drives the second sliding block 4 to enter the groove, the second sliding block 4 pushes the first sliding block 3 to move leftwards under the action of the inclined surface (the second side surface 42) in the entering process until the first sliding block 3 tightly abuts against the groove wall on the left side of the groove, the elastic piece 6 is completely pressed into the through hole 7, and at the moment, the first top 32 is tightly abutted on the workpiece 11, so that the workpiece 11 is clamped.

After the machining is completed, the driving cylinder 51 drives the second slide block 4 to return, and the first slide block 3 moves rightwards in the groove under the action of the elastic piece 6, at the moment, the first top part 32 is far away from the workpiece 11, so that the workpiece 11 can be taken out conveniently.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A clamp, characterized by: the sliding mechanism comprises a base with a groove, a fixed block fixedly arranged on the base, a first sliding block which is arranged in the groove and can slide along the direction close to or far away from the fixed block, a second sliding block which can slide into the groove and is used for abutting against and pushing the first sliding block to slide and close to the fixed block, a driving mechanism used for driving the second sliding block to slide, and an elastic piece which is arranged in the base and is used for abutting against the first sliding block, wherein the elastic piece and the second sliding block are respectively arranged on two sides of the first sliding block along the sliding direction of the first sliding block;

2. A clamp as claimed in claim 1, wherein: the fixed block is arranged at the top of the base, the first sliding block comprises a first bottom which is slidably arranged in the groove and a first top which is fixedly arranged at the upper end of the first bottom and is used for being matched with the fixed block to clamp the workpiece, and the first top is positioned above the groove;

3. A clamp as claimed in claim 2, wherein: the base is provided with a through hole which is positioned below the fixed block and is used for penetrating through the groove wall on the other side of the groove, one end of the elastic piece is fixedly arranged in the through hole, and the other end of the elastic piece extends out of the groove wall on the other side of the groove and is abutted against the first bottom.

4. A clamp as claimed in claim 2, wherein: the fixture further comprises a guide shaft which is convexly arranged on the groove wall on the other side of the groove, and the first bottom is sleeved on the guide shaft.

5. A clamp as claimed in claim 2, wherein: the fixture further comprises a positioning block fixedly arranged on the base and used for tightly abutting against one end of the workpiece, and the positioning block is arranged between the fixing block and the first top.

6. A clamp as claimed in claim 1, wherein: the second sliding block is provided with a first side surface used for tightly abutting against the first sliding block and a second side surface used for tightly abutting against the groove wall on one side of the groove, and the first side surface and the second side surface form an angle with each other.

7. A clamp according to claim 6, wherein: the first side surface is perpendicular to the sliding direction of the first sliding block, the second side surface is parallel to the driving direction of the driving mechanism, and the groove wall on one side of the groove is gradually inclined to be close to the first sliding block along the direction that the second sliding block slides into the groove.

8. A clamp as claimed in claim 1, wherein: the driving mechanism comprises a driving cylinder and a telescopic rod which is arranged in the driving cylinder and can stretch along the length extension direction of the driving cylinder.

9. A clamp as claimed in claim 1, wherein: the clamp further comprises a pressing block fixedly arranged at the top of the base and used for pressing the second sliding block.