A square workpiece clamping tool

Abstract

The utility model discloses a square workpiece clamping tool, including a workbench, and clamping components are symmetrically slidably arranged on both sides of the outer wall of the top of the workbench, and the clamping components include a first cylinder slidably arranged on both sides of the workbench, a second cylinder is elastically and movably connected inside the first cylinder, a first spring is sleeved on the outside of the second cylinder, one end of the first spring is fixedly arranged on the outer surface of the second cylinder, and the other end is fixedly connected to the inner wall of the bottom end of the first cylinder, a third cylinder is elastically and movably connected inside the second cylinder, and a second spring is sleeved on the outside of the third cylinder, one end of the second spring is fixedly arranged on the outer surface of the third cylinder, and the other end is fixedly connected to the inner wall of the bottom end of the second cylinder, and a pressure plate is vertically fixedly connected to the top end of the third cylinder. When using this device, the height of the square workpiece that can be clamped by the pressure plate has a relatively large span, and the size of the square workpiece that can be clamped is more abundant.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a square workpiece clamping tool. Background Art

[0002] When processing a workpiece, a clamping tool is needed to clamp and fix the workpiece so that the workpiece cannot move during processing, thereby improving the processing effect. The square workpiece has a neat shape, and the clamping tool can play a good clamping effect. Most of the existing square workpiece clamping tools can clamp workpieces of different sizes.

[0003] As described in the public patent with the publication number CN216000234U, the clamping mechanism can be adjusted according to the size of the wood, which is specifically manifested as follows: a right-angle clamp is installed on the electric telescopic rod, and the electric telescopic rod can adjust the height of the right-angle clamp to facilitate clamping workpieces of different sizes. However, the adjustable height range is small, and relatively short workpieces and relatively high workpieces may not be clamped by the same clamping mechanism. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a square workpiece clamping tool, in which the second cylinder is elastically and movably connected to the first cylinder, and the third cylinder is elastically and movably connected to the second cylinder. This makes the pressure plate able to clamp the square workpiece with a relatively large height span, and the sizes of the square workpieces that can be clamped are more diverse.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a square workpiece clamping tool, comprising a workbench, two groups of clamping assemblies for clamping square workpieces are symmetrically slidably arranged on both sides of the top outer wall of the workbench, the clamping assembly comprises a first cylinder slidably arranged on both sides of the workbench, a second cylinder is elastically movably connected inside the first cylinder, a third cylinder is elastically movably connected inside the second cylinder, and a pressing plate is vertically fixedly connected to the top end of the third cylinder; when the pressing plate is pulled upward, the third cylinder can be driven to move inside the second cylinder, and then the second cylinder can be driven to move inside the first cylinder;

[0006] Furthermore, a first spring is sleeved on the outside of the second cylinder, one end of the first spring is fixedly arranged on the outer surface of the second cylinder, and the other end is fixedly connected to the inner wall of the bottom end of the first cylinder;

[0007] Furthermore, a second spring is sleeved on the outside of the third cylinder, one end of the second spring is fixedly arranged on the outer surface of the third cylinder, and the other end is fixedly connected to the inner wall of the bottom end of the second cylinder;

[0008] Furthermore, a layer of rubber pad is fixedly bonded on the lower surface of the opposite end of the pressing plate.

[0009] As a preferred technical solution of the utility model, a rotating groove is horizontally opened inside the workbench, a double-threaded rod is rotatably penetrated in the rotating groove, one end of the double-threaded rod extends to the outside of the workbench, a rotating handle is fixed on the end thereof, ball nuts are symmetrically sleeved at both ends of the double-threaded rod, and a first cylinder is fixedly installed on the outer wall of the top end of the ball nut;

[0010] Furthermore, a slide groove is provided on the top outer wall of the workbench at a position corresponding to the first cylinder, and the first cylinder is slidably arranged in the slide groove.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0012] When using the device, the first cylinder, the second cylinder, the first spring, the third cylinder, and the second spring are set, the second cylinder is elastically connected to the first cylinder, and the third cylinder is elastically connected to the second cylinder. In a natural state, the third cylinder is completely retracted in the second cylinder, and the second cylinder is completely retracted in the first cylinder. This makes the height of the square workpiece that the pressure plate can clamp have a relatively large span, and the sizes of the square workpieces that can be clamped are more diverse. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0015] Figure 3 This is the front view of the utility model;

[0016] Figure 4 This is a top view of the chute of the utility model;

[0017] Among them: 1. workbench; 2. double threaded rod; 3. handle; 4. ball nut; 5. clamping assembly; 6. first cylinder; 601, slide groove; 7. second cylinder; 8. first spring; 9. third cylinder; 10. second spring; 11. pressure plate. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0019] Example

[0020] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model provides a square workpiece clamping tool, including a workbench 1, two groups of clamping components 5 for clamping square workpieces are symmetrically and slidably arranged on both sides of the top outer wall of the workbench 1, the clamping component 5 includes a first cylinder 6 slidably arranged on both sides of the workbench 1, the first cylinder 6 is hollow, and a second cylinder 7 is elastically and movably connected thereto inside, a first spring 8 is sleeved on the outside of the second cylinder 7, one end of the first spring 8 is fixedly arranged on the outer surface of the second cylinder 7, and the other end is fixedly connected to the inner wall of the bottom end of the first cylinder 6, the second cylinder 7 is hollow, and a third cylinder 9 is elastically and movably connected thereto inside, the third cylinder 9 is sleeved on the outside of the second spring 10, one end of the second spring 10 is fixedly arranged on the outer surface of the third cylinder 9, and the other end is fixedly connected to the inner wall of the bottom end of the second cylinder 7, a pressing plate 11 is vertically and fixedly connected to the top end of the third cylinder 9, and a layer of rubber pad is fixedly bonded to the lower surface of the opposite end of the pressing plate 11;

[0021] When using the device, in a natural state, the third cylinder 9 is completely retracted in the second cylinder 7, the second cylinder 7 is completely retracted in the first cylinder 6, and the two sets of clamping assemblies 5 are in the farthest distance state, the square workpiece is placed on the workbench 1, the handle 3 is turned, and the handle 3 drives the double-threaded rod 2 to rotate. When the double-threaded rod 2 rotates, the ball nuts 4 sleeved at both ends begin to move, so that the two ball nuts 4 gradually approach each other, and the ball nuts 4 drive the clamping assembly 5 to move. When the clamping assembly 5 is about to approach the square workpiece, the pressure plate 11 is pulled upward, and the pressure plate 11 drives the third cylinder 9 to move upward, and the third cylinder 9 stretches the second spring 10. The second spring 10 is deformed under force and has a rebound elastic force, so that the height of the pressure plate 11 is higher than the height of the square workpiece, and then the handle 3 is continued to be turned to make the clamping assembly 5 fit the square workpiece, and then the pressure plate 11 is released. Under the elastic force of the first spring 8 and the second spring 10 and the gravity of the third cylinder 9, the pressure plate 11 falls The square workpiece is pressed on the square workpiece to clamp the square workpiece, and the rubber pad is arranged to isolate the square workpiece and the pressure plate 11 to play a buffering role to prevent the square workpiece from being damaged. If when the third cylinder 9 is stretched to the highest height, its height is lower than the height of the square workpiece, the third cylinder 9 is continued to be pulled, so that the third cylinder 9 drives the second cylinder 7 to move upward, and the second cylinder 7 drives the first spring 8 to stretch. The first spring 8 is deformed by the force and has a rebound elastic force. When using the present device, the second cylinder 7 is elastically connected to the first cylinder 6 through the first cylinder 6, the second cylinder 7, the first spring 8, the third cylinder 9, and the second spring 10. The third cylinder 9 is elastically connected to the second cylinder 7. In the natural state, the third cylinder 9 is completely contracted in the second cylinder 7, and the second cylinder 7 is completely contracted in the first cylinder 6. This makes the height of the square workpiece that the pressure plate 11 can clamp have a relatively large span, and the size of the square workpiece that can be clamped is richer.

[0022] like Figure 1 , Figure 3 , Figure 4 As shown, a rotating groove is horizontally opened inside the workbench 1, a double-threaded rod 2 is rotatably penetrated in the rotating groove, one end of the double-threaded rod 2 extends to the outside of the workbench 1, a rotating handle 3 is fixed on the end thereof, ball nuts 4 are symmetrically sleeved on both ends of the double-threaded rod 2, a first cylinder 6 is fixedly installed on the top outer wall of the ball nut 4, a slide groove 601 is opened on the top outer wall of the workbench 1 corresponding to the first cylinder 6, and the first cylinder 6 is slidably arranged in the slide groove 601;

[0023] When the device is used, the two sets of clamping assemblies 5 are at the farthest distance from each other. The square workpiece is placed on the workbench 1, and the handle 3 is turned. The handle 3 drives the double-threaded rod 2 to rotate. When the double-threaded rod 2 rotates, the ball nuts 4 sleeved at both ends begin to move. The moving direction of the ball nuts 4 is related to the rotation direction of the double-threaded rod 2. When the rotation directions are different, the movement directions of the ball nuts 4 are also different, so that the two ball nuts 4 gradually approach each other, and the ball nuts 4 drive the clamping assembly 5 to move. When the clamping assembly 5 is about to approach the square workpiece, the pressure plate 11 is pulled upward so that the height of the pressure plate 11 is higher than the height of the square workpiece, and then the handle 3 is continued to be turned to make the clamping assembly 5 fit the square workpiece, and then the pressure plate 11 is released so that the pressure plate 11 presses the square workpiece, so that it can be clamped for processing. By setting a slidable clamping assembly 5, square workpieces of different widths can be clamped.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A square workpiece clamping tool, comprising a workbench (1), characterized in that: Two groups of clamping assemblies (5) for clamping square workpieces are symmetrically slidably disposed on both sides of the top outer wall of the workbench (1). The clamping assemblies (5) include A first cylinder (6) slidably disposed on both sides of the workbench (1); A second cylinder (7) elastically and movably connected to the inside of the first cylinder (6); A third cylinder (9) elastically and movably connected to the interior of the second cylinder (7); A pressing plate (11) vertically fixedly connected to the top end of the third cylinder (9); When the pressing plate (11) is pulled upward, the third cylinder (9) can be driven to move inside the second cylinder (7), thereby driving the second cylinder (7) to move inside the first cylinder (6).

2. A square workpiece clamping fixture according to claim 1, characterized in that: The second cylinder (7) is sleeved with a first spring (8), one end of the first spring (8) is fixedly arranged on the outer surface of the second cylinder (7), and the other end is fixedly connected to the inner wall of the bottom end of the first cylinder (6).

3. A square workpiece clamping tool according to claim 1, characterized in that: The third cylinder (9) is sleeved with a second spring (10), one end of the second spring (10) is fixedly arranged on the outer surface of the third cylinder (9), and the other end is fixedly connected to the inner wall of the bottom end of the second cylinder (7).

4. A square workpiece clamping fixture according to claim 1, characterized in that: A layer of rubber pad is fixedly bonded to the lower surface of the opposite end of the pressing plate (11).

5. A square workpiece clamping fixture according to claim 1, characterized in that: A rotating groove is horizontally opened inside the workbench (1), a double-threaded rod (2) is rotatably inserted into the rotating groove, one end of the double-threaded rod (2) extends to the outside of the workbench (1), a rotating handle (3) is fixedly provided on the end thereof, ball nuts (4) are symmetrically sleeved at both ends of the double-threaded rod (2), and a first cylinder (6) is fixedly mounted on the outer wall of the top end of the ball nut (4).

6. A square workpiece clamping fixture according to claim 1, characterized in that: A sliding groove (601) is provided on the outer wall of the top end of the workbench (1) at a position corresponding to the first cylinder (6), and the first cylinder (6) is slidably arranged in the sliding groove (601).

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