Clamping device

Abstract

The utility model relates to a clamping device. The clamping device comprises a base; the at least two sliding blocks are in sliding connection with the base; the driving assembly comprises a driving piece and at least two first rolling pieces, the at least two first rolling pieces are connected with the output end of the driving piece, and the first rolling pieces can move in the direction away from the base; the two clamping pieces are connected with the two adjacent sliding blocks correspondingly, each clamping piece comprises a first rail and a second rail, the distance between the two first rails is gradually decreased in the direction close to the base, and the two second rails are connected with the farthest ends of the two first rails correspondingly; the rail paths of the two second rails are parallel and extend in the direction away from the base, the rail paths of the second rails are perpendicular to the moving paths of the clamping pieces, a clamping space is formed between the two clamping pieces, and the first rolling pieces abut against the first rails and can move to the second rails along the first rails. According to the clamping device, a workpiece can be clamped more stably.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a clamping device. Background Art

[0002] During the production process of rod materials, processing steps such as cutting, punching, marking, and welding need to be carried out on the rod materials. During the processing of the rod materials, the rod materials need to be fixed. At present, the rod materials are mainly clamped and fixed by a pneumatic clamping device. However, during the processing, due to the unstable pneumatic clamping, the rod materials will shake during the processing, resulting in poor processing accuracy of the rod materials. Summary of the Utility Model

[0003] Therefore, the technical problem to be solved by the utility model is to provide a clamping device that can clamp the workpiece more stably.

[0004] To solve the above technical problem, the utility model provides a clamping device, including: a base; sliders, at least two of the sliders are slidably connected to the base; a driving assembly, including a driving member and a first rolling member, the driving member is connected to the base, at least two of the first rolling members are connected to the output end of the driving member, and the first rolling member can move away from the base; a clamping assembly, including at least two clamping members, two of the clamping members are respectively connected to two adjacent sliders, the clamping member includes a first track and a second track, the distance between the two first tracks gradually decreases in the direction approaching the base, the two second tracks are respectively connected to the two ends of the first tracks that are farthest apart, the track paths of the two second tracks are parallel and extend away from the base, and the track path of the second track is perpendicular to the moving path of the clamping member, a clamping space is formed between the two clamping members, and the first rolling member abuts against the first track and can move along the first track to the second track.

[0005] In an embodiment of the utility model, an elastic member is connected between the two clamping members.

[0006] In an embodiment of the utility model, the base is connected with a first fixing block, the clamping member is connected with a second fixing block, and elastic members are connected between the two second fixing blocks and the first fixing block.

[0007] In an embodiment of the utility model, the positions where the first fixing block abuts against the two clamping members correspond.

[0008] In an embodiment of the utility model, clamping grooves are provided on the opposite sides of the two clamping members, and the clamping space includes the space between the two clamping grooves.

[0009] In an embodiment of the present utility model, a second rolling member is rotatably connected to the clamping member, the second rolling member is located at the edge of the clamping groove, and the clamping space further includes the space between the second rolling members.

[0010] In an embodiment of the present utility model, at least two of the second rolling members are rotatably connected to the clamping member.

[0011] In an embodiment of the present utility model, the output end of the driving member is connected to a first connecting plate, the first connecting plate extends towards the direction approaching the first track, and the first rolling member is rotatably connected to the first connecting plate.

[0012] In an embodiment of the present utility model, the base includes a bottom plate, the bottom plate is connected to a support plate, a slide rail is connected to the support plate, and a plurality of sliders are slidably connected to the slide rail.

[0013] In an embodiment of the present utility model, the slider is connected to the clamping member through a second connecting plate, the second connecting plate includes at least two bends, and the second connecting plate is attached to the side of the slider close to the clamping member.

[0014] The above technical solution of the present utility model has the following advantages compared with the prior art:

[0015] For a clamping device of the present utility model, the first rolling member moves along the first track to the second track to make the clamping member in a clamping state. Since the track path of the second track is perpendicular to the moving path of the clamping member, and the direction in which the clamping members move away from each other is parallel to the line connecting the two first rolling members, the clamping member is in a locked state, thereby making the clamping of the workpiece by the clamping device more stable. By connecting an elastic member between the clamping members, the elastic member can drive the clamping members to move away from each other. Description of the Drawings

[0016] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model and in conjunction with the attached drawings, where

[0017] Figure 1 is a schematic structural diagram of a clamping device of the present utility model;

[0018] Figure 2 is Figure 1 a schematic structural diagram from another angle;

[0019] Figure 3 is Figure 1 a partial structural diagram of.

[0020] Description of the reference numerals in the drawings: 1. Slide block; 2. Clamping member; 3. Support plate; 4. Base plate; 5. Driving member; 11. Slide rail; 12. Second connecting plate; 21. Card slot; 22. Second rolling member; 23. Elastic member; 24. First track; 25. Second track; 26. Second fixing block; 31. Fastening plate; 32. First fixing block; 51. First connecting plate; 52. First rolling member. Detailed implementation manners

[0021] The present utility model will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the specific embodiments cited do not limit the present utility model.

[0022] Referring to Figure 1 As shown, a clamping device of the present utility model includes: a base; a slide block 1, at least two of the slide blocks 1 are slidably connected to the base; a driving assembly, including a driving member 5 and a first rolling member 52, the driving member 5 is connected to the base, at least two of the first rolling members 52 are connected to the output end of the driving member 5, and the first rolling member 52 can move in a direction away from the base; a clamping assembly, including at least two clamping members 2, two of the clamping members 2 are respectively connected to two adjacent slide blocks 1, the clamping member 2 includes a first track 24 and a second track 25, the distance between the two first tracks 24 gradually decreases in a direction approaching the base, the two second tracks 25 are respectively connected to the two ends of the first tracks 24 that are farthest apart, the track paths of the two second tracks 25 are parallel and extend in a direction away from the base, and the track path of the second track 25 is perpendicular to the moving path of the clamping member 2, a clamping space is formed between the two clamping members 2, and the first rolling member 52 abuts against the first track 24 and can move along the first track 24 to the second track 25.

[0023] In a clamping device of this embodiment, the driving member 5 drives the first rolling member 52 to move in a direction away from the base, so that the first rolling member 52 moves along the first track 24 to the second track 25. Since the distance between the first tracks 24 gradually increases in a direction away from the base, the clamping members 2 move closer to each other until the first rolling member 52 moves to the second track 25, and the two clamping members 2 are in a clamping state. Since the second track 25 of the clamping member 2 abuts against the rolling member and the track path of the second track 25 is perpendicular to the moving path of the clamping member 2, the clamping members 2 cannot move away from each other. At the same time, the first rolling member 52 and the output end of the driving member 5 are rotatably connected and cannot slide relative to each other, so that the clamping of the workpiece by the clamping device is more stable.

[0024] Referring to Figure 2As shown in the figure, the base includes a bottom plate 4, a support plate 3 is vertically connected to the bottom plate 4, a slide rail 11 is connected to one end of the support plate 3 away from the bottom plate 4, the path of the slide rail 11 is parallel to the bottom plate 4, and a plurality of sliders 1 are slidably connected to the slide rail 11. In this embodiment, two sliders 1 are slidably connected to the slide rail 11, and more than two sliders 1 can be set according to the size and quantity of the clamping members 2. Preferably, a fastening plate 31 is also connected between the support plate 3 and the base, and both sides perpendicular to the fastening plate 31 are respectively connected to the support plate 3 and the bottom plate 4. The setting of the fastening plate 31 makes the connection between the support plate 3 and the bottom plate 4 more stable and not prone to tilt.

[0025] The slider 1 is connected to the clamping member 2 through a second connecting plate 12. The second connecting plate 12 includes at least two bends. One of the bends extends towards the direction close to the bottom plate 4, so that the second connecting plate 12 fits the side of the slider 1 close to the clamping member 2. The other bend extends towards the clamping member 2 and is connected to the clamping member 2. The setting of the two bends on the second connecting plate 12 makes the connection between the second connecting plate 12 and the slider 1 more stable, without shaking, and at the same time, the overall strength of the second connecting plate 12 is higher.

[0026] The clamping assembly includes at least two clamping members 2, and the two clamping members 2 are respectively connected to two adjacent sliders 1. Specifically, the clamping member 2 is connected to the slider 1 through a second connecting plate 12. The clamping member 2 includes a first track 24 and a second track 25, and both the first track 24 and the second track 25 are located at the end of the two clamping members 2 that are farthest apart. The first track 24 is connected to the bottom of the clamping member 2, and the distance between the two first tracks 24 gradually decreases towards the direction close to the base, so that the first track 24 is inclined as a whole. The two second tracks 25 are respectively connected to the ends of the two first tracks 24 that are farthest apart. The paths of the two second tracks 25 are parallel and extend away from the base, and the path of the second track 25 is perpendicular to the moving path of the clamping member 2, that is, the path of the second track 25 is perpendicular to the path of the slide rail 11. A clamping space is formed between the two clamping members 2 for clamping the workpiece. Preferably, a guiding member is connected to the clamping member 2, and the first track 24 is located on the guiding member. The setting of the guiding member can prevent the first rolling member 52 from wearing the first track 24.

[0027] Preferably, clamping grooves 21 are provided on opposite sides of the clamping member 2, and the clamping space includes the space between the two clamping grooves 21. In this embodiment, the clamping grooves 21 are arc-shaped, enabling the clamping member 2 to clamp a round rod. According to different workpieces to be clamped, the clamping grooves 21 can also be set as elliptical, rectangular, etc. A second rolling member 22 is rotatably connected to the clamping member 2. The second rolling member 22 can be regarded as a roller. The second rolling member 22 is located at the edge of the clamping groove 21. The clamping space includes the space between the second rolling members 22. The distance between the second rolling members 22 is slightly less than the maximum distance between the clamping grooves 21, so that the second rolling members 22 can abut against the workpiece to be clamped. When the workpiece to be clamped rotates, the second rolling members 22 can rotate synchronously. The setting of the second rolling members 22 can prevent the workpiece to be clamped from fitting and rubbing against the clamping member 2. Preferably, at least two second rolling members 22 are rotatably connected to the clamping member 2. In this embodiment, two second rolling members 22 are rotatably connected to the clamping member 2, and the second rolling members 22 are arranged longitudinally, so that the workpiece can be clamped by the 4 second rolling members 22, and thus the clamping of the workpiece by the second rolling members 22 is more stable.

[0028] Referring to Figure 3 As shown, preferably, an elastic member 23 is connected between the two clamping members 2. Specifically, the support plate 3 is connected with a first fixing block 32, and one side of the clamping member 2 close to the support plate 3 is connected with a second fixing block 26. The first fixing block 32 and the second fixing block 26 are arranged in parallel, and the distances between the first fixing block 32 and the second fixing block 26 and the bottom plate 4 are the same. Elastic members 23 are connected between the two second fixing blocks 26 and the first fixing block 32. The elastic member 23 can be regarded as a spring, and the elastic member 23 can drive the clamping members 2 to move away from each other. Preferably, the position where the first fixing member abuts against the two clamping members 2 corresponds, that is, it corresponds to the middle position between the first fixing member and the two sliders 1, so that the pressure exerted by the elastic member 23 on the two clamping members 2 is the same.

[0029] The driving assembly includes a driving member 5 and a first rolling member 52. The first rolling member 52 can be regarded as a roller, and the driving member 5 can be regarded as a cylinder. The driving member 5 is connected to the base, and the output direction of the driving member 5 is perpendicular to the bottom plate 4. At least two first rolling members 52 are connected to the output end of the driving member 5, and the driving member 5 can drive the first rolling member 52 to move away from the base. Specifically, a first connecting plate 51 is connected to the output end of the driving member 5. The first connecting plate 51 extends towards the first track 24. In this embodiment, the end of the first connecting plate 51 extends towards the bottom plate 4. The first rolling member 52 is rotatably connected to the first connecting plate 51. The first rolling member 52 can abut against the first track 24 and can move along the first track 24 to the second track 25. When the first rolling member 52 is located on the second track 25, the first rolling member 52 abuts against the clamping member 2. Since the first rolling member 52 is rotatably connected to the first connecting plate 51, that is, there is no relative sliding between the first rolling member 52 and the first connecting plate 51, and the track path of the second track 25 is perpendicular to the moving path of the clamping member 2, the first rolling member 52 can block the clamping member 2 from moving away from each other. At the same time, the direction in which the clamping members 2 move away from each other is parallel to the line connecting the two first rolling members 52, so that the clamping member 2 is in a locked state, that is, the force applied during the machining of the workpiece being clamped does not directly act on the driving member 5, thereby making the clamping of the workpiece by the clamping device more stable.

[0030] During use, after the workpiece moves to the clamping position, the driving member 5 drives the first rolling member 52 to move away from the base, so that the first rolling member 52 moves along the first track 24. At the same time, the clamping members 2 move towards each other. After the first rolling member 52 moves to the second track 25, the two clamping members 2 are in a clamping state. At the same time, the elastic member 23 is in a compressed state, and the second rolling member 22 abuts against the workpiece. When the clamping member 2 needs to be in an open state, the driving member 5 drives the first rolling member 52 to move towards the base, and the first rolling member 52 moves along the second track 25 to the end of the first track 24 close to the bottom plate 4. At the same time, the elastic member 23 drives the clamping member 2 to move away from each other until the clamping member 2 is in an open state.

[0031] In a clamping device of the present utility model, when the first rolling member 52 moves along the first track 24 to the second track 25, the clamping member 2 is in a clamping state. Since the track path of the second track 25 is perpendicular to the moving path of the clamping member 2, and the direction in which the clamping members 2 move away from each other is parallel to the line connecting the two first rolling members 52, the clamping member 2 is in a locked state, thereby making the clamping of the workpiece by the clamping device more stable. By connecting an elastic member 23 between the clamping members 2, the elastic member 23 can drive the clamping members 2 to move away from each other.

[0032] Obviously, the above embodiments are merely examples for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of this utility model creation.

Claims

1. A clamping device, characterized in that, Comprising: Base; Sliders, at least two of the sliders are slidably connected to the base; Drive assembly, including a drive member and a first rolling member, the drive member is connected to the base, at least two of the first rolling members are connected to the output end of the drive member, and the first rolling member can move in a direction away from the base; Clamping assembly, including at least two clamping members, two of the clamping members are respectively connected to two adjacent sliders, the clamping member includes a first track and a second track, the distance between the two first tracks gradually decreases in a direction approaching the base, the two second tracks are respectively connected to the two ends of the first tracks that are farthest apart, the track paths of the two second tracks are parallel and extend in a direction away from the base, and the track path of the second track is perpendicular to the movement path of the clamping member, a clamping space is formed between the two clamping members, the first rolling member abuts against the first track and can move along the first track to the second track.

2. The clamping device according to claim 1, characterized in that: An elastic member is connected between the two clamping members.

3. The clamping device according to claim 2, characterized in that: The base is connected with a first fixing block, the clamping member is connected with a second fixing block, and elastic members are connected between the two second fixing blocks and the first fixing block.

4. The clamping device according to claim 3, characterized in that: The first fixing block corresponds to the position where it abuts against the two clamping members.

5. The clamping device according to claim 1, characterized in that: Claw slots are provided on the opposite sides of the two clamping members, and the clamping space includes the space between the two claw slots.

6. The clamping device according to claim 5, wherein: A second rolling member is rotatably connected to the clamping member, the second rolling member is located at the edge of the claw slot, and the clamping space further includes the space between the second rolling members.

7. The clamping device according to claim 6, wherein: At least two of the second rolling members are rotatably connected to the clamping member.

8. The clamping device according to claim 1, characterized in that: The output end of the drive member is connected with a first connecting plate, the first connecting plate extends in a direction approaching the first track, and the first rolling member is rotatably connected to the first connecting plate.

9. The clamping device according to claim 1, characterized in that: The base includes a bottom plate, the bottom plate is connected with a support plate, a slide rail is connected to the support plate, and multiple sliders are slidably connected to the slide rail.

10. The clamping device according to claim 1, wherein: The slider is connected to the clamping member through a second connecting plate, the second connecting plate includes at least two bends, and the second connecting plate is attached to the side of the slider close to the clamping member.

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