Adjustable multi-cylinder pneumatic clamp

Abstract

The utility model discloses an adjustable multi-cylinder pneumatic clamp and relates to the technical field of pneumatic clamps, the adjustable multi-cylinder pneumatic clamp comprises a machining table, one side of the machining table is provided with an adjusting mechanism, in the adjustable multi-cylinder pneumatic clamp, a first electric push rod works to drive a moving rod to move, a rotating push rod rotates, and the distance between two positioning blocks is driven to change; the two moving plates move along with the clamping assemblies to drive the clamping mechanisms to move, the longitudinal distance between the clamping assemblies can be adjusted, the second electric push rods work to push the clamping assemblies to move, the transverse distance between the clamping assemblies is adjusted, and therefore the clamping positions of the clamping assemblies are adjusted, different workpieces are clamped, it is guaranteed that the workpieces are evenly clamped, and the clamping efficiency is improved. Workpiece deformation or damage is avoided; the first air cylinder works to push the clamping plates to move, so that the two clamping plates conduct preliminary positioning on the workpiece, the second air cylinder works to drive the connecting push block to move, the height of the clamping assembly is changed, secondary positioning and clamping of the workpiece are achieved, and the clamping effect on the workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic fixtures, in particular to an adjustable multi-cylinder pneumatic fixture. Background Art

[0002] A fixture refers to a device used in the mechanical manufacturing process to fix a processing object, make it occupy the correct position, and accept construction or inspection, also known as a jig. A pneumatic fixture is a fixture that uses air pressure as a power source to clamp and position workpieces.

[0003] In the prior art, when clamping workpieces with a pneumatic fixture, due to the different sizes of the workpieces, it is impossible to quickly and effectively adjust the clamping position, and the workpieces cannot be evenly clamped, resulting in easy deformation or damage of the workpieces, and inaccurate positioning of the workpieces, affecting the processing efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem in the prior art that the clamping position of the workpiece cannot be adjusted, resulting in uneven clamping of the workpiece, and to propose an adjustable multi-cylinder pneumatic fixture.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: an adjustable multi-cylinder pneumatic fixture, including a processing table, an adjusting mechanism is installed on one side of the processing table, the adjusting mechanism includes two moving plates, a positioning block is fixedly connected to the middle of one side of the two moving plates, a rotating push rod is rotatably connected to the middle of the positioning block, one end of the rotating push rod is rotatably connected to a moving rod, a first electric push rod is fixedly connected to the middle of the moving rod, one end of the first electric push rod is fixedly connected to one side of the processing table, a support frame is fixedly connected to the outside of the first electric push rod, one end of the support frame is fixedly connected to one side of the processing table, clamping mechanisms are installed at both ends of the other side of the two moving plates, the clamping mechanism includes a connecting plate and a third rotating plate, a second electric push rod is fixedly connected to one end of the third rotating plate, and one end of the second electric push rod is fixedly connected to one end of the connecting plate.

[0006] Preferably, first sleeve rods are fixedly connected to both sides of the middle of the moving plate, and second sleeve rods are slidably connected to one end of the first sleeve rods.

[0007] Preferably, a support plate is fixedly connected to the middle of the second sleeve rod, and one end of the support plate is fixedly connected to one side of the processing table.

[0008] Preferably, guide rods are fixedly connected to one end of the connecting plate and one end of the third rotating plate, and a connecting block is slidably connected between the two guide rods.

[0009] Preferably, a clamping assembly is installed at one end of the connecting plate.

[0010] Preferably, one end of the third rotating plate is rotatably connected to a first rotating plate, and one end of the first rotating plate is rotatably connected to a second rotating plate.

[0011] Preferably, one end of the third rotating plate is rotatably connected to a support base, one end of the support base is rotatably connected to one end of the second rotating plate, and the other end of the support base is fixedly connected to a second cylinder, and the second cylinder is fixedly connected to one side of the moving plate.

[0012] Preferably, a sliding groove is formed at one end of the first rotating plate.

[0013] Preferably, one end of the second cylinder passes through the support base and is fixedly connected to a connecting push block, one end of the connecting push block is rotatably connected to a sliding rod, and the connecting push block is slidably connected to the sliding groove.

[0014] Preferably, a first cylinder is fixedly connected to one side of the processing table, and a clamping plate is fixedly connected to one end of the first cylinder.

[0015] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0016] 1. In the present utility model, the first electric push rod works to drive the moving rod to move, the rotating push rod rotates, driving the distance between the two positioning blocks to change, the two moving plates move accordingly, driving the clamping mechanism to move, and the longitudinal distance between the clamping components can be adjusted. The second electric push rod works to push the connecting plate and the clamping components to move, adjusting the transverse distance between the clamping components, thereby adjusting the clamping position of the clamping components, clamping the corners of different workpieces, ensuring that the workpieces are evenly clamped, and avoiding deformation or damage of the workpieces.

[0017] 2. In the present utility model, the first cylinder works to push the clamping plate to move, so that the two clamping plates first move to perform preliminary positioning on the workpiece. The second cylinder works to drive the connecting push block to move, the second rotating plate rotates, the first rotating plate rotates, driving the third rotating plate to rotate, so that the height of the clamping component changes, and the workpiece is clamped, thereby realizing secondary positioning clamping of the workpiece and improving the clamping effect on the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of an adjustable multi-cylinder pneumatic fixture proposed by the present utility model;

[0019] Figure 2 is a connection structural schematic diagram of an adjustment mechanism and a clamping mechanism of an adjustable multi-cylinder pneumatic fixture proposed by the present utility model;

[0020] Figure 3 is a partial connection structural schematic diagram of an adjustment mechanism of an adjustable multi-cylinder pneumatic fixture proposed by the present utility model;

[0021] Figure 4 The figure shows a schematic diagram of the connection structure of the clamping mechanism of an adjustable multi-cylinder pneumatic fixture proposed by the present utility model;

[0022] Figure 5 The figure shows a schematic diagram of the disassembled structure of the clamping mechanism of an adjustable multi-cylinder pneumatic fixture proposed by the present utility model.

[0023] Legend: 1. Processing table; 2. Adjusting mechanism; 21. Moving plate; 22. First sleeve rod; 23. Support frame; 24. Support plate; 25. Second sleeve rod; 26. Positioning block; 27. Rotating push rod; 28. First electric push rod; 29. Moving rod; 3. Clamping mechanism; 31. Support seat; 32. Connecting push block; 33. Second cylinder; 34. First rotating plate; 35. Second rotating plate; 36. Second electric push rod; 37. Connecting block; 38. Connecting plate; 39. Clamping assembly; 310. Guide rod; 311. Third rotating plate; 312. Sliding rod; 313. Sliding groove; 4. First cylinder; 5. Clamping plate. Detailed implementation manners

[0024] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0025] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model may be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0026] Embodiment 1: As Figure 1 - Figure 5As shown in the figure, the utility model provides an adjustable multi-cylinder pneumatic fixture, which includes a processing table 1. An adjusting mechanism 2 is installed on one side of the processing table 1. The adjusting mechanism 2 includes two moving plates 21. A positioning block 26 is fixedly connected to the middle of one side of the two moving plates 21. A rotating push rod 27 is rotatably connected to the middle of the positioning block 26. One end of the rotating push rod 27 is rotatably connected to a moving rod 29. A first electric push rod 28 is fixedly connected to the middle of the moving rod 29. One end of the first electric push rod 28 is fixedly connected to one side of the processing table 1. A support frame 23 is fixedly connected to the outside of the first electric push rod 28. One end of the support frame 23 is fixedly connected to one side of the processing table 1. Clamping mechanisms 3 are installed at both ends of the other side of the two moving plates 21. The clamping mechanism 3 includes a connecting plate 38 and a third rotating plate 311. One end of the third rotating plate 311 is fixedly connected to a second electric push rod 36. One end of the second electric push rod 36 is fixedly connected to one end of the connecting plate 38. Both sides of the middle of the moving plate 21 are fixedly connected with first sleeve rods 22. One end of the first sleeve rod 22 is slidably connected with a second sleeve rod 25. A support plate 24 is fixedly connected to the middle of the second sleeve rod 25. One end of the support plate 24 is fixedly connected to one side of the processing table 1. Guide rods 310 are fixedly connected to one end of the connecting plate 38 and one end of the third rotating plate 311. A connecting block 37 is slidably connected between the two guide rods 310.

[0027] When the first electric push rod 28 works, it drives the moving rod 29 to move. The rotating push rods 27 rotatably connected to both ends of the moving rod 29 rotate, driving the distance between the two positioning blocks 26 to change. The two moving plates 21 move accordingly. The movement of the moving plates 21 can drive the first sleeve rods 22 to move, changing the length of the second sleeve rods 25 located inside the first sleeve rods 22. The second sleeve rods 25 slide inside the first sleeve rods 22, thereby fixing the movement path of the moving plates 21. The movement of the moving plates 21 drives the clamping mechanisms 3 to move, and the longitudinal distance between the clamping components 39 can be adjusted. When the second electric push rod 36 works, it pushes the connecting plate 38 and the clamping components 39 to move. The guide rods 310 slide on the connecting block 37, which can fix the movement path of the connecting plate 38 and adjust the lateral distance between the clamping components 39. By adjusting the distance between the clamping components 39, the clamping position of the clamping components 39 can be adjusted to clamp the corners of different workpieces, ensuring that the workpieces are evenly clamped and avoiding deformation or damage of the workpieces.

[0028] Embodiment 2: As Figure 2 、 Figure 4 and Figure 5As shown, a clamping assembly 39 is installed at one end of the connecting plate 38; one end of the third rotating plate 311 is rotatably connected to the first rotating plate 34, and one end of the first rotating plate 34 is rotatably connected to the second rotating plate 35; one end of the third rotating plate 311 is rotatably connected to the support base 31, one end of the support base 31 is rotatably connected to one end of the second rotating plate 35, and the other end of the support base 31 is fixedly connected to the second cylinder 33, and the second cylinder 33 is fixedly connected to one side of the moving plate 21; a sliding groove 313 is formed at one end of the first rotating plate 34; one end of the second cylinder 33 passes through the support base 31 and is fixedly connected to the connecting push block 32, one end of the connecting push block 32 is rotatably connected to the sliding rod 312, and the connecting push block 32 is slidably connected with the sliding groove 313; one side of the processing table 1 is fixedly connected to the first cylinder 4, and one end of the first cylinder 4 is fixedly connected to the clamping plate 5.

[0029] Place the workpiece on the processing table 1. By the operation of the first cylinder 4 to push the clamping plate 5 to move, the two clamping plates 5 first move to clamp the two ends of the workpiece, performing a preliminary positioning of the workpiece. By the operation of the second cylinder 33 to drive the connecting push block 32 to move, the second rotating plate 35 rotates, the first rotating plate 34 rotates, and the sliding rod 312 slides inside the sliding groove 313, causing the third rotating plate 311 to rotate. By the rotation of the third rotating plate 311 to drive the height of the clamping assembly 39 to change, the clamping assembly 39 can move to clamp the workpiece, thereby realizing the secondary positioning and clamping of the workpiece and improving the clamping effect on the workpiece.

[0030] The usage method and working principle of this device: Place the workpiece on the processing table 1. By the operation of the first cylinder 4 to push the clamping plate 5 to move, the two clamping plates 5 first move to clamp the two ends of the workpiece. By the operation of the second cylinder 33 to drive the connecting push block 32 to move, the second rotating plate 35 rotates, the first rotating plate 34 rotates, and the sliding rod 312 slides inside the sliding groove 313, causing the third rotating plate 311 to rotate. The clamping assembly 39 can move to clamp the workpiece. By the operation of the first electric push rod 28 to drive the moving rod 29 to move, the rotating push rod 27 rotates, driving the distance between the two positioning blocks 26 to change, and the two moving plates 21 move accordingly. The movement of the moving plate 21 drives the clamping mechanism 3 to move, and the longitudinal distance between the clamping assemblies 39 can be adjusted. By the operation of the second electric push rod 36 to push the connecting plate 38 and the clamping assembly 39 to move, the lateral distance between the clamping assemblies 39 is adjusted, thereby adjusting the clamping position of the clamping assembly 39.

[0031] The above are only the preferred embodiments of the present utility model and do not constitute other forms of limitation to the present utility model. Any person skilled in the relevant art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An adjustable multi-cylinder pneumatic clamp, comprising a processing table (1), characterized in that: An adjustment mechanism (2) is installed on one side of the processing table (1), and the adjustment mechanism (2) comprises two movable plates (21), a positioning block (26) is fixedly connected to the middle of one side of the two movable plates (21), a rotating push rod (27) is rotatably connected to the middle of the positioning block (26), one end of the rotating push rod (27) is rotatably connected to a moving rod (29), a first electric push rod (28) is fixedly connected to the middle of the moving rod (29), and one end of the first electric push rod (28) is fixedly connected to one side of the processing table (1). The first electric push rod (28) is fixedly connected to a support frame (23) on the outside, one end of the support frame (23) is fixedly connected to one side of the processing table (1), and the two ends of the other side of the two movable plates (21) are both installed with a clamping mechanism (3), the clamping mechanism (3) comprises a connecting plate (38) and a third rotating plate (311), one end of the third rotating plate (311) is fixedly connected to the second electric push rod (36), and one end of the second electric push rod (36) is fixedly connected to one end of the connecting plate (38).

2. The adjustable multi-cylinder pneumatic clamp according to claim 1, characterized in that: A first set of rods (22) are fixedly connected to both sides of the middle of the movable plate (21), and a second set of rods (25) is slidably connected to one end of the first set of rods (22).

3. The adjustable multi-cylinder pneumatic clamp according to claim 2, characterized in that: A support plate (24) is fixedly connected to the middle portion of the second sleeve rod (25), and one end of the support plate (24) is fixedly connected to one side of the processing table (1).

4. The adjustable multi-cylinder pneumatic clamp according to claim 1, characterized in that: One end of the connecting plate (38) and one end of the third rotating plate (311) are both fixedly connected to a guide rod (310), and a connecting block (37) is slidably connected between the two guide rods (310).

5. The adjustable multi-cylinder pneumatic clamp according to claim 1, characterized in that: A clamping assembly (39) is installed at one end of the connecting plate (38).

6. The adjustable multi-cylinder pneumatic clamp according to claim 1, characterized in that: One end of the third rotating plate (311) is rotatably connected to the first rotating plate (34), and one end of the first rotating plate (34) is rotatably connected to the second rotating plate (35).

7. The adjustable multi-cylinder pneumatic clamp according to claim 1, characterized in that: One end of the third rotating plate (311) is rotatably connected to a support seat (31), one end of the support seat (31) is rotatably connected to one end of a second rotating plate (35), the other end of the support seat (31) is fixedly connected to a second cylinder (33), and the second cylinder (33) is fixedly connected to one side of the movable plate (21).

8. The adjustable multi-cylinder pneumatic clamp according to claim 6, characterized in that: A sliding groove (313) is formed at one end of the first rotating plate (34).

9. The adjustable multi-cylinder pneumatic clamp according to claim 7, characterized in that: One end of the second cylinder (33) passes through the support seat (31) and is fixedly connected to a connecting push block (32); one end of the connecting push block (32) is rotatably connected to a sliding rod (312); and the connecting push block (32) is slidably connected to the sliding groove (313).

10. The adjustable multi-cylinder pneumatic clamp according to claim 1, characterized in that: A first cylinder (4) is fixedly connected to one side of the processing table (1), and a clamping plate (5) is fixedly connected to one end of the first cylinder (4).

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