High-precision self-centering pneumatic rotary chuck clamping device

Abstract

The utility model discloses a high-precision self-centering pneumatic rotary chuck clamping device, which belongs to the technical field of pneumatic chucks and comprises a bottom plate, a support plate is assembled on one side of the bottom plate, and a group of limiting clamping components is assembled on one side of the upper end of the support plate. The high-precision self-centering pneumatic rotary chuck clamping device has the advantages of being high in clamping precision, flexible in adjustment and capable of improving production efficiency, the three limiting rods can be driven to be centered and inclined by controlling the guide rod air cylinder, and therefore a workpiece is clamped and fixed by the three clamping plates, stability and accuracy of the workpiece in the working process are guaranteed, and the working efficiency is improved. The device can adapt to workpieces of multiple specifications through adjustability of the three clamping plates, the adaptability is wide, the limiting clamping assembly can be driven to rotate by controlling the driving motor, the use convenience is improved, the device adapts to various machining process requirements, and the device has the functions of high-precision clamping and overall rotation and is suitable for popularization and application. The transposition and adjustment time can be shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pneumatic chucks, and particularly relates to a clamping device for a high-precision self-centering pneumatic rotary chuck. Background Art

[0002] A chuck generally refers to a device for clamping a workpiece. It can be a circular, square or other shaped device used to fix and clamp the workpiece so that it can maintain a stable position during the machining process. Chucks usually fix the workpiece on the machine tool through a clamping mechanism or other clamping devices for turning, milling, drilling or other machining operations. They play a crucial role in machining because the stable clamping of the workpiece is crucial for both machining accuracy and safety.

[0003] When the existing chucks are in use, they are usually clamped by means of bolt fixation. Not only is the clamping effect poor, but they cannot be flexibly adjusted according to the outer diameter of the workpiece. At the same time, when the existing chucks are in use, they are all fixed structures and cannot achieve overall rotation, thus reducing the convenience of use. Therefore, a clamping device for a high-precision self-centering pneumatic rotary chuck is proposed to solve the above problems. Summary of the Utility Model

[0004] In view of one or more of the above-mentioned defects or improvement requirements in the prior art, the utility model provides a clamping device for a high-precision self-centering pneumatic rotary chuck, which has the advantages of high-precision clamping, flexible adjustment and improved production efficiency.

[0005] To achieve the above object, the utility model provides a clamping device for a high-precision self-centering pneumatic rotary chuck, which includes a bottom plate, a support plate is assembled on one side of the bottom plate, and a group of limit clamping components are assembled on one side of the upper end of the support plate;

[0006] The limit clamping component includes a circular ring seat penetrating through one side of the support plate, an installation plate is assembled on one side of the circular ring seat, three clamping members are assembled around one side of the installation plate, a limit rod is rotatably connected to each of the three clamping members through a rotating rod, a clamping plate is assembled at one end of each of the three limit rods, two connecting rods are rotatably connected to one side of each of the three limit rods through a rotating rod, one end of two adjacent connecting rods on the same side is commonly connected to a positioning block through a rotating rod, a sliding rod is assembled on one side of each of the three positioning blocks and one end of each of the three sliding rods penetrates through the installation plate, and one ends of the three sliding rods are commonly connected to an installation disc.

[0007] As a further improvement of the utility model, a first installation ring is assembled on the outside of the circular ring seat, a driving motor is assembled on one side of the support plate, a rotating rod is connected to the output end of the driving motor and one end of the rotating rod penetrates through the support plate and is connected to a second installation ring, and a transmission belt is sleeved on the outside of the second installation ring and the first installation ring together.

[0008] As a further improvement of the present utility model, two connecting plates are assembled on one side of the support plate, and the two connecting plates are arranged in parallel. A positioning plate is assembled on one side of the two connecting plates. A guide rod cylinder is assembled at the center point of one side of the positioning plate. The output end of the guide rod cylinder is connected with a cylinder guide rod, and one end of the cylinder guide rod penetrates through the positioning plate and is connected with the mounting disc.

[0009] As a further improvement of the present utility model, a second deep groove ball bearing is assembled at the connection between the cylinder guide rod and the mounting disc.

[0010] As a further improvement of the present utility model, a first deep groove ball bearing is assembled at the connection between the ring seat and the support plate.

[0011] As a further improvement of the present utility model, anti-slip patterns are provided on one side of each of the three clamping plates.

[0012] Generally speaking, compared with the prior art by the above technical solutions conceived by the present utility model, the beneficial effects include:

[0013] The high-precision self-centering pneumatic rotary chuck clamping device of the present utility model, through the mutual cooperation between the components in the limit clamping assembly, by controlling the guide rod cylinder to drive the cylinder guide rod to retract, the three limit rods can be driven to be centered and inclined, so that the workpiece is clamped and fixed by the three clamping plates, ensuring the stability and accuracy of the workpiece during the working process. The adjustability between the three clamping plates enables the device to adapt to workpieces of multiple specifications, with a wide adaptability. By controlling the driving motor to drive the second mounting ring to rotate, through the traction and transmission of the transmission belt, the limit clamping assembly is finally driven to rotate, improving the convenience of use and meeting the requirements of various processing technologies. The device has the functions of high-precision clamping and overall rotation, which can reduce the time for position change and adjustment and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall installation structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the overall installation structure of the present utility model;

[0016] Figure 3 It is a schematic diagram of the overall installation structure of the limit clamping assembly of the present utility model;

[0017] Figure 4 It is a schematic diagram of the disassembly and assembly structure of the limit clamping assembly of the present utility model.

[0018] In all the drawings, the same reference numerals denote the same technical features, specifically: 1. Base plate; 11. Support plate; 12. Connection plate; 13. Positioning plate; 2. Limit clamping assembly; 20. Ring seat; 201. First deep groove ball bearing; 21. Mounting plate; 22. Engaging member; 23. Limit rod; 24. Clamping plate; 25. Connecting rod; 26. Positioning block; 27. Slide rod; 28. Mounting disc; 29. First mounting ring; 3. Driving motor; 31. Rotating rod; 32. Second mounting ring; 321. Transmission belt; 4. Guide rod cylinder; 41. Cylinder guide rod; 411. Second deep groove ball bearing. Detailed implementation manner

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment

[0021] Provided by Figures 1-4 There is a high-precision self-centering pneumatic rotary chuck clamping device, including a base plate 1. One side of the base plate 1 is assembled with a support plate 11, and one side of the upper end of the support plate 11 is assembled with a group of limit clamping assemblies 2;

[0022] The limit clamping assembly 2 includes a ring seat 20 penetrating through one side of the support plate 11. One side of the ring seat 20 is assembled with a mounting plate 21. Three engaging members 22 are assembled around one side of the mounting plate 21. Three limit rods 23 are rotatably connected to the three engaging members 22 through rotating rods. One end of each of the three limit rods 23 is assembled with a clamping plate 24. Two connecting rods 25 are rotatably connected to one side of each of the three limit rods 23 through rotating rods. One end of two adjacent connecting rods 25 on the same side is commonly connected with a positioning block 26 through a rotating rod. One side of each of the three positioning blocks 26 is assembled with a slide rod 27 and one end of each of the three slide rods 27 penetrates through the mounting plate 21. One end of the three slide rods 27 is commonly connected with a mounting disc 28;

[0023] A first mounting ring 29 is assembled outside the ring seat 20. A driving motor 3 is assembled on one side of the support plate 11. The output end of the driving motor 3 is connected with a rotating rod 31, and one end of the rotating rod 31 penetrates through the support plate 11 and is connected with a second mounting ring 32. A transmission belt 321 is commonly sleeved outside the second mounting ring 32 and the first mounting ring 29;

[0024] On one side of the support plate 11, two connecting plates 12 are assembled, and the two connecting plates 12 are arranged in parallel. On one side of the two connecting plates 12, a positioning plate 13 is assembled together. At the center point on one side of the positioning plate 13, a guide rod cylinder 4 is assembled. The output end of the guide rod cylinder 4 is connected with a cylinder guide rod 41, and one end of the cylinder guide rod 41 penetrates through the positioning plate 13 and is connected with the mounting disc 28.

[0025] In this embodiment, through the mutual cooperation between the components in the limit clamping assembly 2, by controlling the guide rod cylinder 4 to drive the cylinder guide rod 41 to retract, the three limit rods 23 can be driven to incline towards the center, so that the workpiece is clamped and fixed by the three clamping plates 24, ensuring the stability and accuracy of the workpiece during the working process. The adjustability between the three clamping plates 24 enables the device to adapt to workpieces of multiple specifications, with a wide adaptability. By controlling the driving motor 3 to drive the second mounting ring 32 to rotate, through the traction and transmission of the transmission belt 321, the limit clamping assembly 2 is finally driven to rotate, improving the convenience of use and meeting the requirements of various processing technologies. This device has the functions of high-precision clamping and overall rotation, which can reduce the time for transposition and adjustment and improve production efficiency.

[0026] Specifically, referring to Figure 2 , a second deep groove ball bearing 411 is assembled at the connection between the cylinder guide rod 41 and the mounting disc 28.

[0027] In this embodiment, by installing the second deep groove ball bearing 411 at the connection between the cylinder guide rod 41 and the mounting disc 28, it can ensure that the first mounting ring 29 and the circular ring seat 20 will not affect the cylinder guide rod 41 when being driven to rotate.

[0028] Specifically, referring to Figures 1-2 , a first deep groove ball bearing 201 is assembled at the connection between the circular ring seat 20 and the support plate 11.

[0029] In this embodiment, by installing the first deep groove ball bearing 201 at the connection between the circular ring seat 20 and the support plate 11, it can make the rotation of the circular ring seat 20 more stable and smooth.

[0030] Specifically, referring to Figures 1-4 , anti-slip patterns are provided on one side of each of the three clamping plates 24.

[0031] In this embodiment, by providing anti-slip patterns on one side of the three clamping plates 24, the friction force can be increased, making the three clamping plates 24 more stable when limiting the workpiece.

[0032] The high-precision self-centering pneumatic rotary chuck clamping device of the present utility model:

[0033] Step 1: During actual use, first connect the set driving motor 3 to an external power supply, connect the set guide rod cylinder 4 to an external air source and give the cylinder an output value. By controlling the guide rod cylinder 4, the cylinder guide rod 41 can be driven to retract, thereby driving the movement of the mounting plate 28 connected to one end of the cylinder guide rod 41. When the mounting plate 28 moves, the three sliding rods 27 connected to the mounting plate 28 drive the positioning blocks 26 at one end to move. Two connecting rods 25 are rotatably connected to one end of each of the three set positioning blocks 26 through rotating rods. Through the connection and traction of the connecting rods 25, the three limiting rods 23 are finally driven. Through the limitation of one end of the limiting rod 23 by the engaging member 22, the limiting rod 23 tilts to one side during movement, and finally the workpiece can be clamped and fixed by the clamping plates 24 at one end of the three limiting rods 23.

[0034] Step 2: By starting and controlling the driving motor 3, the driving motor 3 drives the rotating rod 31 connected to the output end to rotate. When the rotating rod 31 rotates, it drives the externally mounted second mounting ring 32. A transmission belt 321 is sleeved between the set second mounting ring 32 and the first mounting ring 29. Through the traction and transmission of the transmission belt 321, finally the limiting clamping assembly 2 and the clamped and fixed workpiece are driven to rotate.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. High-precision self-centering pneumatic rotary chuck clamping device, characterized by: It comprises a base plate (1), one side of the base plate (1) is equipped with a support plate (11), and one side of the upper end of the support plate (11) is equipped with a group of position limiting clamping components (2); The limit clamping assembly (2) comprises a circular ring seat (20) penetrating one side of the support plate (11); a mounting plate (21) is mounted on one side of the circular ring seat (20); three engaging members (22) are mounted on one side of the mounting plate (21); the three engaging members (22) are rotatably connected to a limit rod (23) via a rotating rod; one end of the three limit rods (23) is mounted with a clamping plate (24); one side of the three limit rods (23) is rotatably connected to two connecting rods (25) via a rotating rod; one end of two adjacent connecting rods (25) on the same side is commonly connected to a positioning block (26) via a rotating rod; one side of the three positioning blocks (26) is equipped with a sliding rod (27); one end of the three sliding rods (27) penetrates the mounting plate (21); one end of the three sliding rods (27) is commonly connected to a mounting plate (28).

2. The high-precision self-centering pneumatic rotary chuck clamping device according to claim 1 is characterized in that: The annular seat (20) is externally provided with a first mounting ring (29), a driving motor (3) is installed on one side of the supporting plate (11), an output end of the driving motor (3) is connected with a rotating rod (31), one end of the rotating rod (31) passes through the supporting plate (11) and is connected with a second mounting ring (32), and a transmission belt (321) is commonly sleeved on the outside of the second mounting ring (32) and the first mounting ring (29).

3. The high-precision self-centering pneumatic rotary chuck clamping device according to claim 1 is characterized in that: One side of the support plate (11) is equipped with two connecting plates (12) and the two connecting plates (12) are arranged in parallel. One side of the two connecting plates (12) is jointly equipped with a positioning plate (13). A guide rod cylinder (4) is equipped at the center point of one side of the positioning plate (13). The output end of the guide rod cylinder (4) is connected to a cylinder guide rod (41), and one end of the cylinder guide rod (41) passes through the positioning plate (13) and is connected to the mounting plate (28).

4. The high-precision self-centering pneumatic rotary chuck clamping device according to claim 3 is characterized in that: A second deep groove ball bearing (411) is mounted at the connection between the cylinder guide rod (41) and the mounting plate (28).

5. The high-precision self-centering pneumatic rotary chuck clamping device according to claim 1, characterized in that: A first deep groove ball bearing (201) is mounted at the connection between the annular seat (20) and the support plate (11).

6. The high-precision self-centering pneumatic rotary chuck clamping device according to claim 1, characterized in that: One side of the three clamping plates (24) is provided with anti-slip patterns.

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