Pneumatic clamp for cold plate

Abstract

The utility model relates to the technical field of pneumatic clamps, and discloses a cold plate pneumatic clamp which comprises a workbench and an air cylinder, a clamping plate is installed at the output end of the air cylinder, a clamping hole is formed in the bottom of the clamping plate, a limiting bolt is rotationally clamped in the clamping hole, and the end, facing the air cylinder, of the limiting bolt is connected with a threaded rod. The screw is sleeved with a limiting threaded pipe, a connecting rod is installed at the end, away from the screw, of the limiting threaded pipe, and the other end of the connecting rod is connected with a check block. After an air cylinder drives a clamping plate to move and before the clamping plate makes contact with a cold plate, a clamping hole in the bottom is clamped with a limiting bolt, at the moment, the moving clamping plate drives the limiting bolt to move, and the limiting bolt sequentially drives a screw rod, a limiting threaded pipe, a connecting rod and a check block to move in the moving process; the air inlet amount of the air inlet pipe to the air cylinder is reduced through the air holes, and therefore the impact force of the clamping plate before the clamping plate makes contact with the cold plate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic clamping technology, specifically a pneumatic clamping fixture for cold-rolled steel plates. Background Technology

[0002] The cold-rolled steel plate pneumatic clamp is a clamp specifically designed for the processing of cold-rolled steel plates. It uses compressed air as a power source and achieves positioning and clamping of the cold-rolled steel plate through pneumatic components.

[0003] Pneumatic clamps open and close very quickly, greatly improving the efficiency of cold-rolled steel plate processing. However, due to the extremely fast opening and closing speed, the pneumatic clamps impact the cold-rolled steel plate at full speed when clamping it, resulting in significant impact force. This can lead to deformation of the cold-rolled steel plate during clamping. Therefore, those skilled in the art have provided a pneumatic clamp for cold-rolled steel plates to solve the problems mentioned in the background art. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a pneumatic clamp for cold plates, which solves the problem that the pneumatic clamp opens and closes very quickly, and when clamping a cold plate, it impacts at full speed with a large impact force, which may cause the cold plate to deform during the clamping process.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic clamp for cold-rolled steel plates, comprising a worktable and a cylinder, the cylinder being fixedly installed at one end of the worktable, a clamping plate being installed on the output end of the cylinder, a snap-fit ​​hole being provided at the bottom of the clamping plate, a limit bolt being rotatably snapped into the snap-fit ​​hole, a screw being connected to the end of the limit bolt facing the cylinder, a limit threaded tube being sleeved on the screw, a connecting rod being installed at the end of the limit threaded tube away from the screw, and a stop being connected to the other end of the connecting rod, the stop having an air hole, an air inlet pipe being connected to the bottom end of the cylinder, an extension pipe being connected laterally to the air inlet pipe, and a pressure relief pipe being provided on one side of the air inlet pipe.

[0008] Preferably, the workbench is provided with a sliding groove, and the clamping plate is slidably engaged with the sliding groove.

[0009] Preferably, the limiting bolt is rotatably engaged with the bottom end of the clamping plate through a snap-fit ​​hole, the screw is threadedly sleeved with the limiting threaded tube, the limiting threaded tube is square tube shaped, and the limiting threaded tube is slidably inserted into the worktable.

[0010] Preferably, a first baffle is installed on the outer wall of the limiting threaded tube. The first baffle is located inside the worktable. The first baffle can limit the limiting threaded tube and prevent the limiting threaded tube from detaching from the worktable.

[0011] Preferably, a second baffle is provided on one side of the first baffle, the second baffle is located on the outside of the worktable, and a spring is connected to one side of the second baffle. The spring is sleeved with the limiting threaded tube, and the other end of the spring is pressed into contact with the outer wall of the worktable. Under the action of the second baffle and the spring, whenever the cold plate is processed, the limiting bolt, the threaded rod and the limiting threaded tube can automatically spring back to their original positions.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a pneumatic clamp for cold-rolled steel plates, which has the following advantages:

[0014] Through design, the pneumatic clamp in this utility model consists of a worktable, a clamping plate, and a cylinder. Before the cylinder moves the clamping plate, the limit bolt is rotated to drive the screw to rotate, so that the limit bolt extends to the side where the cold plate needs to be clamped, and the limit bolt does not vertically overlap with the cold plate. After the cylinder moves the clamping plate, before the clamping plate contacts the cold plate, the bottom locking hole engages with the limit bolt. At this time, the moving clamping plate drives the limit bolt to move. During the movement of the limit bolt, the screw, the limit threaded tube, the connecting rod, and the stop block are moved in sequence. When the end of the stop block in the extension tube moves to the air intake channel of the air intake pipe, the air intake pipe is partially blocked. The air intake of the cylinder is reduced through the air hole, thereby reducing the impact force of the clamping plate before contacting the cold plate and avoiding the problem of collision deformation when the pneumatic clamp clamps the cold plate. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a cold plate pneumatic clamp provided in an embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the screw structure in a pneumatic clamp for cold-rolled steel plates provided in an embodiment of this application.

[0017] Figure 3 This is a schematic diagram of the snap-fit ​​hole structure in a cold plate pneumatic clamp provided in an embodiment of this application.

[0018] Figure 4 This is a cross-sectional view of the limiting threaded tube in a cold-plate pneumatic clamp provided in this application embodiment.

[0019] Figure 5 This application provides a pneumatic clamp for cold-rolled steel plates. Figure 4 Enlarged view of the structure at point A.

[0020] In the diagram: 1. Workbench; 2. Slide groove; 3. Clamping plate; 301. Snap-fit ​​hole; 4. Cylinder; 5. Inlet pipe; 501. Extension pipe; 6. Pressure relief pipe; 7. Limit bolt; 8. Screw; 9. Limit threaded pipe; 10. First baffle; 11. Second baffle; 12. Spring; 13. Connecting rod; 14. Stop block; 15. Air hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides a technical solution: a pneumatic clamp for cold-rolled steel plates. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The system includes a workbench 1 and a cylinder 4. The cylinder 4 is fixedly installed at one end of the workbench 1. A clamping plate 3 is installed on the output end of the cylinder 4. A snap-fit ​​hole 301 is opened at the bottom of the clamping plate 3. A limit bolt 7 is rotatably snapped into the snap-fit ​​hole 301. A screw 8 is connected to the end of the limit bolt 7 facing the cylinder 4. A limit threaded tube 9 is sleeved on the screw 8. A connecting rod 13 is installed at the end of the limit threaded tube 9 away from the screw 8. A stop block 14 is connected to the other end of the connecting rod 13. An air hole 15 is opened on the stop block 14. An air inlet pipe 5 is connected to the bottom end of the cylinder 4. An extension pipe 501 is horizontally connected to the air inlet pipe 5. A pressure relief pipe 6 is provided on one side of the intake pipe 5. When the cylinder 4 drives the clamping plate 3 to move, before the clamping plate 3 contacts the cold plate, the bottom locking hole 301 engages with the limit bolt 7. At this time, the moving clamping plate 3 drives the limit bolt 7 to move. During the movement of the limit bolt 7, the screw 8, the limit threaded tube 9, the connecting rod 13 and the stop block 14 are moved in sequence. When one end of the stop block 14 in the extension tube 501 moves to the intake channel of the intake pipe 5, it blocks the intake pipe 5. The intake of the cylinder 4 by the air hole 15 is reduced, thereby reducing the impact force of the clamping plate 3 before contacting the cold plate.

[0023] Please see Figure 3 , Figure 4 , Figure 5The workbench 1 has a sliding groove 2, and the clamping plate 3 is slidably engaged with the sliding groove 2. The limiting bolt 7 is rotatably engaged with the bottom end of the clamping plate 3 through the engaging hole 301. The screw 8 is threadedly engaged with the limiting threaded tube 9. The limiting threaded tube 9 is square tube shaped and is slidably inserted into the workbench 1. A first baffle 10 is installed on the outer wall of the limiting threaded tube 9. The first baffle 10 is located inside the workbench 1 and can limit the limiting threaded tube 9 to prevent it from detaching from the workbench 1. A second baffle 11 is provided on one side of the first baffle 10 and is located on the outer side of the workbench 1. A spring 12 is connected to one side of the second baffle 11 and is engaged with the limiting threaded tube 9. The other end of the spring 12 is pressed against the outer wall of the workbench 1. Under the action of the second baffle and the spring, the limiting bolt, the threaded rod, and the limiting threaded tube can automatically spring back to their original positions after the cold plate is processed.

[0024] The pneumatic clamp in this utility model consists of a worktable 1, a clamping plate 3, and a cylinder 4. The clamping plate 3 is connected to the output end of the cylinder 4. An air inlet pipe 5 and a pressure relief pipe 6 are connected to the bottom side of the cylinder 4, and an extension pipe 501 is horizontally installed on the air inlet pipe 5. The clamping plate 3 at the output end of the cylinder 4 is slidably engaged with a sliding groove 2 on the worktable 1. A locking hole 301 is opened at the lower end of the clamping plate 3, and a limit bolt 7 is rotatably engaged in the locking hole 301. A screw 8 is installed on the end of the limit bolt 7 facing the cylinder 4, and a limit threaded pipe 9 is threadedly connected to the screw 8. The tube 9 is square tube and slides into the bottom of the workbench 1. A first baffle 10 and a second baffle 11 are installed on the outer wall of the limiting threaded tube 9. A spring 12 is provided on one side of the second baffle 11. The end of the spring 12 away from the second baffle 11 is in abutting contact with the workbench 1. A connecting rod 13 is installed on the end of the limiting threaded tube 9 away from the limiting bolt 7. A stop block 14 is installed on the other end of the connecting rod 13. An air hole 15 is opened on the stop block 14. The stop block 14 is arranged laterally in the extension tube 501. The connecting rod 13 passes through one end of the extension tube 501.

[0025] When the cold plate is clamped, gas is supplied to the cylinder 4 through the air inlet pipe 5. The output end of the cylinder 4 drives the clamping plate 3 to move to one side to squeeze and contact the cold plate. To avoid excessive impact force from the cylinder 4, before the cylinder 4 moves the clamping plate 3, the limiting bolt 7 is rotated to drive the screw 8 to rotate, so that the limiting bolt 7 extends to the side of the cold plate to be clamped and leaves a certain distance. At this time, the limiting bolt 7 does not vertically overlap with the cold plate. After the cylinder 4 moves the clamping plate 3, before the clamping plate 3 contacts the cold plate, the snap-fit ​​hole 301 at the bottom engages with the limiting bolt 7. At this time, the moving clamp 3 drives the limit bolt 7 to move. During the movement of the limit bolt 7, the screw 8, the limit threaded tube 9, the connecting rod 13 and the stop block 14 are moved in sequence. When one end of the stop block 14 in the extension tube 501 moves to the air intake channel of the air intake pipe 5, it blocks the air intake pipe 5. The air intake of the air intake pipe 5 to the cylinder 4 is reduced through the air hole 15, thereby reducing the impact force of the clamp 3 before contacting the cold plate. This avoids the pneumatic clamp from impacting the cold plate at full speed when clamping it. The impact force is large, which may cause the cold plate to be deformed during the clamping process.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] In this document, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cold plate pneumatic clamp comprising a worktable (1) and a pneumatic cylinder (4), the pneumatic cylinder (4) being fixedly installed at one end of the worktable (1), characterized in that: The output end of the air cylinder (4) is provided with a clamping plate (3), the bottom of the clamping plate (3) is provided with a clamping hole (301), a limiting bolt (7) is rotatably clamped in the clamping hole (301), one end of the limiting bolt (7) towards the air cylinder (4) is connected with a screw rod (8), the screw rod (8) is sleeved with a limiting threaded pipe (9), one end of the limiting threaded pipe (9) away from the screw rod (8) is provided with a connecting rod (13), the other end of the connecting rod (13) is connected with a stop block (14), the stop block (14) is provided with an air hole (15), the bottom end of the air cylinder (4) is connected with an air inlet pipe (5), the air inlet pipe (5) is transversely connected with an extension pipe (501), one side of the air inlet pipe (5) is provided with a pressure relief pipe (6).

2. A cold plate pneumatic clamp as claimed in claim 1, wherein: The workbench (1) is provided with a sliding groove (2), the clamping plate (3) is slidably clamped with the sliding groove (2).

3. A cold plate pneumatic clamp as claimed in claim 1, wherein: The limiting bolt (7) is rotatably clamped with the clamping plate (3) through the clamping hole (301), the screw rod (8) is threadedly sleeved with the limiting threaded pipe (9).

4. A cold plate pneumatic clamp as defined in claim 1, wherein: The limiting threaded pipe (9) is in the shape of a square tube, the limiting threaded pipe (9) is slidably inserted with the workbench (1).

5. A cold plate pneumatic clamp as defined in claim 1, wherein: The first stop plate (10) is mounted on the outer wall of the limiting threaded pipe (9), and the first stop plate (10) is arranged on the inner side of the workbench (1).

6. A cold plate pneumatic clamp as claimed in claim 5, wherein: The second stop plate (11) is arranged on the outer side of the workbench (1), the spring (12) is sleeved with the limiting threaded pipe (9), and the other end of the spring (12) is in extrusion contact with the outer wall of the workbench (1).

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