Quick-change type automatic self-centering cable-stayed clamp

Abstract

The utility model discloses a quick-change type automatic self-centering cable-stayed clamp which comprises a clamp table, a clamp seat and a clamp body. The left pull rod and the right pull rod are symmetrically arranged in the vice bench; a left jaw and a right jaw are respectively mounted at the upper ends of the left pull rod and the right pull rod, and opposite surfaces of the left jaw and the right jaw form a clamping surface; the workpiece supporting block is mounted on the clamp table; and the driving cylinder drives the left pull rod and the right pull rod to synchronously reciprocate along the axial direction. According to the utility model, the left jaw and the right jaw dynamically apply downward pulling force in the clamping process through the driving of the air cylinder or the hydraulic cylinder and the utilization of the left pull rod and the right pull rod which are obliquely arranged, so that a workpiece is tightly attached to the workpiece supporting block, the upward floating phenomenon of the workpiece is effectively prevented, and the parallelism and the consistency of products in the machining process are ensured; meanwhile, the self-centering function is also realized; the clamp has the advantages of being high in clamping precision, high in automation degree and good in applicability, and is suitable for being applied to high-precision machining and automatic machining occasions.

Description

TECHNICAL FIELD

[0001] The utility model relates to machining equipment and accessory technical field, concretely relates to a quick-change type automatic self-centering cable-stayed clamp. BACKGROUND

[0002] In modern manufacturing industry, especially in high-precision machining field, the clamp plays a vital role in the positioning and clamping of workpieces. Most of the traditional clamps adopt horizontal clamping mode, which can cause the workpiece to appear floating or non-parallel phenomenon in the clamping process, resulting in the inability to cope with the parallelism requirement of products in the machining process, and ultimately affecting the machining precision. This limits the machining quality of the product to a certain extent, and cannot meet the requirements of modern manufacturing industry for high precision and high consistency, especially cannot meet the high-precision machining occasions such as five-axis machine tool, robot automatic production line or flexible line body.

[0003] In addition, the traditional clamp usually needs a long time and complex operation in the replacement process, which makes it difficult to disassemble and assemble the clamp in a multi-station production environment. SUMMARY

[0004] In order to overcome the above-mentioned defects of the traditional clamp, the utility model provides a quick-change type automatic self-centering cable-stayed clamp.

[0005] The utility model adopts the technical scheme as follows: a quick-change type automatic self-centering cable-stayed clamp, comprising: a clamp table; symmetrically arranged left pull rod and right pull rod, which are axially slidably installed in the clamp table, and the upper end is outwardly inclined and extends out of the table surface of the clamp table; left jaw and right jaw, which are respectively installed at the upper end of the left pull rod and the right pull rod, and the opposite surface of the left jaw and the right jaw forms a clamping surface; a workpiece support block is installed on the table surface of the clamp table and located at the center position of the left pull rod and the right pull rod; a drive cylinder drives the left pull rod and the right pull rod to move synchronously along the axial direction.

[0006] Preferably, the drive cylinder adopts a gas cylinder or a hydraulic cylinder.

[0007] Preferably, it further comprises: a base supported and fixed below the clamp table; a piston assembled in the cylinder cavity of the base; a pull rod integrated with the piston; a wedge block installed at the upper end of the pull rod, and the wedge block is clamped on the left pull rod and the right pull rod.

[0008] Preferably, the top of the wedge block is provided with a guide part, and a guide hole is correspondingly arranged in the clamp table.

[0009] Preferably, the clamp table and the base are respectively provided with through and concentric upper mounting holes and lower mounting holes.

[0010] Preferably, positioning pins are arranged between the anvil and the base.

[0011] Preferably, the upper and lower ends of the cylinder cavity of the base are respectively provided with upper and lower covers, and the piston is mounted on the upper and lower covers.

[0012] Preferably, a dust cover is arranged above the upper cover.

[0013] Preferably, oil grooves are arranged in the outer peripheral walls of the left and right pull rods.

[0014] Preferably, the workpiece support block and the anvil are detachable.

[0015] The utility model has the following beneficial effects:

[0016] 1. Inclined pull design: through the left and right pull rods arranged in an inclined manner, the left and right jaws dynamically exert downward pulling force in the clamping process, so that the workpiece and the workpiece support block are closely attached, effectively preventing the workpiece from floating, and ensuring the parallelism and consistency of the product in the machining process.

[0017] 2. Automatic clamping: through the design driven by the air cylinder or the hydraulic cylinder, the left and right jaws can realize automatic operation, reducing the degree of manual intervention and meeting the demand of modern production line for high automation and high efficiency.

[0018] 3. Self-centering function: the cooperation of the left and right pull rods and the wedge block realizes automatic self-centering during the clamping of the left and right jaws, improving the clamping precision.

[0019] 4. Quick change function: the anvil and the base are integrated, having the quick change feature, so that the replacement of the clamp is more convenient and fast, saving the manual operation time.

[0020] 5. Flexible adaptation: the workpiece support block is designed as a detachable structure, which not only facilitates daily cleaning and maintenance, but also greatly improves the management flexibility of the clamp, providing greater convenience for users in multi-station and multi-task operation. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 It is a perspective view of the embodiment of the utility model.

[0022] Fig. 2 It is a sectional view of the embodiment of the utility model.

[0023] Fig. 3 It is an assembly view of the embodiment of the utility model.

[0024] 1. Gripper; 2. Left pull rod; 3. Right pull rod; 4. Left jaw; 5. Right jaw; 6. Workpiece support block; 7. Base; 8. Piston; 9. Pull rod; 10. Wedge; 11. Guide part; 12. Guide hole; 13. Upper mounting hole; 14. Lower mounting hole; 15. Positioning pin; 16. Upper cover; 17. Lower cover; 18. Dust cover; 19. Oil tank. Detailed Implementation

[0025] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0026] During implementation, such as Figs. 1-3 The image shows a quick-change automatic self-centering angled pull clamp, comprising: a clamping platform 1; symmetrically arranged left pull rods 2 and 3, the lower ends of which are axially slidably mounted inside the clamping platform 1, and the upper ends tilting outwards and extending beyond the platform surface of the clamping platform 1; left jaws 4 and right jaws 5, respectively mounted on the upper ends of the left pull rods 2 and 3, with the opposing surfaces of the left jaws 4 and 5 forming clamping surfaces; a workpiece support block 6, mounted on the platform surface of the clamping platform 1, located at the center of the left pull rods 2 and 3; and a drive cylinder, which is a pneumatic or hydraulic cylinder, driving the left pull rods 2 and 3 to reciprocate synchronously along the axial direction. In this embodiment, a pneumatic or hydraulic cylinder is used as the power source. The tilted left pull rods 2 and 3 dynamically apply a downward pulling force to the left jaws 4 and 5 during clamping, ensuring a tight fit between the workpiece and the workpiece support block 6, effectively preventing the workpiece from floating upwards, ensuring the parallelism and consistency of the product during processing, and simultaneously achieving a self-centering function. This embodiment has the advantages of high clamping accuracy, high degree of automation, and good applicability, and is suitable for application in high-precision machining and automated machining applications.

[0027] During implementation, such as Figs. 2-3 As shown, it also includes: a base 7, which is fixed below the clamp 1; a piston 8, which is assembled in the cylinder cavity within the base 7; a pull rod 9, which is integrally installed with the piston 8; and a wedge 10, which is installed on the upper end of the pull rod and is engaged in the slots of the left pull rod 2 and the right pull rod 3 on both sides. The upper and lower ends of the cylinder cavity of the base 7 are respectively provided with an upper cover 16 and a lower cover 17, and the piston 8 is installed on the upper cover 16 and the lower cover 17. A dust cover 18 is provided above the upper cover 16. This embodiment uses a self-made base 7, piston 8, upper cover 16, and lower cover 17 to form a cylinder structure, which has advantages such as stable operation, small size, and low failure rate. The piston 8, pull rod 9, and wedge 10 are connected by threads, ensuring reliable connection and convenient assembly. The dust cover 18 effectively prevents external dust or oil stains from entering the cylinder, thereby maintaining the reliability of the device.

[0028] During implementation, such as Figs. 2-3As shown, the top of the wedge 10 is provided with a guide 11, and the inner of the anvil 1 is provided with a corresponding guide hole 12. Through the guiding effect of the guide 11, the movement direction of the wedge 10 is kept stable, and deviation is avoided, so that the left pull rod 2 and the right pull rod 3, the left jaw 4 and the right jaw 5 are consistent in action, thereby ensuring the clamping precision.

[0029] In the implementation, as shown in the drawings, Figs. 2-3 As shown, the anvil 1 and the base 7 are respectively provided with through and concentric upper mounting holes 13 and lower mounting holes 14; the anvil 1 and the base 7 are provided with a positioning pin 15. The positioning pin 15 ensures the assembly precision of the anvil 1 and the base 7, and also enhances the overall stability of the clamp. The mounting structure makes the anvil 1 and the base 7 as a whole, has the characteristics of quick replacement, makes the replacement process of the clamp more simple and fast, saves the manual operation time, and improves the practicality of the clamp in various production scenes.

[0030] In the implementation, as shown in the drawings, Fig. 3 As shown, the outer peripheral wall of the left pull rod 2 and the right pull rod 3 is provided with an oil groove 19. The oil groove 19 can effectively store lubricating oil, provide continuous lubrication when the left pull rod 2 and the right pull rod 3 slide, reduce the friction between the moving parts, and improve the overall operation efficiency; at the same time, it can also reduce the friction and wear of the left pull rod 2 and the right pull rod 3, and prolong the service life.

[0031] In the implementation, as shown in the drawings, Figs. 1-3 As shown, the workpiece support block 6 and the anvil 1 are detachable structures. The workpiece support block 6 is designed as a detachable structure, which not only facilitates daily cleaning and maintenance, but also greatly improves the management flexibility of the clamp, and provides greater convenience for users in multi-station and multi-task operation.

[0032] Obviously, the above embodiments of the utility model are only for illustration, and are not limited to the implementation of the utility model. Other obvious changes or changes derived from the essential spirit of the utility model still belong to the protection scope of the utility model.

Claims

1. A quick-change type automatic self-centering cable clamp, characterized by, It includes: The anvil (1); Symmetrically arranged left pull rod (2) and right pull rod (3), the lower end of the shaft can be slidable installed in the anvil (1), the upper end is inclined outward and extends out of the anvil (1) table surface; The left jaw (4) and the right jaw (5) are respectively installed on the upper end of the left pull rod (2) and the right pull rod (3), and the opposite surface of the left jaw (4) and the right jaw (5) forms a clamping surface; Workpiece support block (6), installed on the table surface of the anvil (1), located in the center position of the left pull rod (2) and the right pull rod (3); Driving cylinder, driving the left pull rod (2) and the right pull rod (3) to move synchronously along the axial direction.

2. The quick-change automatic self-centering cable clamp of claim 1, wherein The driving cylinder adopts gas cylinder or hydraulic cylinder.

3. The quick-change automatic self-centering stay-put clamp of claim 1 or 2, wherein, It also includes: Base (7), supporting and fixed below the anvil (1); Piston (8), assembled in the cylinder cavity in the base (7); Pull rod (9), integrated with the piston (8); Wedge block (10), installed on the upper end of the pull rod, embedded in the left pull rod (2) and the right pull rod (3) on both sides.

4. The quick-change automatic self-centering stay cable clamp of claim 3, wherein The top of the wedge block (10) is provided with a guide part (11), and the anvil (1) is correspondingly provided with a guide hole (12).

5. The quick-change automatic self-centering stay cable clamp of claim 3, wherein The anvil (1) and the base (7) are respectively provided with through and concentric upper mounting hole (13) and lower mounting hole (14).

6. The quick-change automatic self-centering stay cable clamp of claim 3, wherein The anvil (1) and the base (7) are respectively provided with through and concentric upper mounting hole (13) and lower mounting hole (14).

7. The quick-change automatic self-centering cable clamp of claim 3, wherein, The upper and lower ends of the cylinder cavity of the base (7) are respectively provided with upper cover (16) and lower cover (17), and the piston (8) is installed on the upper cover (16) and the lower cover (17).

8. The quick-change automatic self-centering stay cable clamp of claim 7, wherein, The upper cover (16) is provided with a dust cover (18) above.

9. The quick change automatic self-centering cable clamp of claim 1, wherein, The outer wall of the left pull rod (2) and the right pull rod (3) is provided with an oil groove (19).

10. The quick change automatic self-centering cable clamp of claim 1, wherein, The workpiece support block (6) and the anvil (1) are detachable structure.

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