Grinding and polishing device for machining circumferential inner wall of cold drawn pipe

Abstract

The utility model discloses a grinding and polishing device for machining the circumferential inner wall of a cold drawn pipe, which belongs to the technical field of cold drawn pipe machining equipment and comprises a bottom plate, a vertical plate and a frame are fixedly mounted at the top of the bottom plate, an electric push rod is fixedly mounted on one side of the vertical plate, and a shell is fixedly mounted at the output end of the electric push rod. A first motor is fixedly installed in the shell, a connecting base is fixedly installed at the output end of the first motor, a connecting shaft is movably inserted into one side of the connecting base, a grinding disc is fixedly installed at one end of the connecting shaft, rotating discs are rotationally installed on inner arms on the two sides of the frame, and four sets of guide rods are fixedly installed on the inner arms on the two sides of the frame. And one side of each of the two groups of rotating discs is hinged with two groups of supporting rods, so that the pipe clamp can uniformly apply clamping force from two sides, the cold-drawn pipe is kept stable in the grinding process, and shaking or displacement caused by non-uniform stress is avoided, so that the grinding precision and quality are ensured, the inner wall of the cold-drawn pipe can be uniformly and accurately ground, and the production process requirements are met.

Description

Technical Field

[0001] This utility model relates to the technical field of cold-drawn tube processing equipment, and in particular to a grinding and polishing device for processing the inner circumference of cold-drawn tubes. Background Technology

[0002] With the continuous development of industrial technology, various fields have increasingly higher requirements for the quality and precision of cold-drawn tubes. For example, in industries such as aerospace, automobile manufacturing, and precision instruments, cold-drawn tubes are required to have high-precision inner diameter dimensions, extremely low surface roughness, and good roundness to ensure reliable operation under complex working conditions. Traditional processing methods are difficult to meet these high-precision requirements, so it is necessary to develop more advanced grinding and polishing equipment to perform fine processing on the inner circumference of cold-drawn tubes.

[0003] Existing grinding and polishing devices for processing the inner circumference of cold-drawn tubes mostly employ simple manual or single-power clamping methods. This makes it difficult to ensure that the clamping force applied from both sides of the cold-drawn tube is uniform and stable. During the grinding process, the cold-drawn tube is prone to shaking and displacement due to uneven force, resulting in a decrease in grinding accuracy. This fails to meet the accuracy requirements for processing the inner wall of high-quality cold-drawn tubes and may cause grinding marks of varying depths on the inner wall, affecting the dimensional accuracy and surface quality of the tube. Therefore, we propose a grinding and polishing device for processing the inner circumference of cold-drawn tubes to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a grinding and polishing device for processing the inner circumference of cold-drawn tubes, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A polishing device for processing the inner circumference of a cold-drawn tube includes: a base plate, a vertical plate and a frame fixedly mounted on the top of the base plate, an electric push rod fixedly mounted on one side of the vertical plate, a housing fixedly mounted on the output end of the electric push rod, a motor fixedly mounted inside the housing, a connecting seat fixedly mounted on the output end of the motor, a connecting shaft movably inserted into one side of the connecting seat, a polishing disc fixedly mounted on one end of the connecting shaft, turntables rotatably mounted on both inner arms of the frame, four sets of guide rods fixedly mounted on both inner arms of the frame, two sets of support rods hinged to one side of each set of turntables, a common moving plate hinged to one end of each set of support rods on the same side, two sets of moving plates slidably mounted on the outside of the four sets of guide rods, a tube clamp fixedly mounted on one side of each set of moving plates, a cold-drawn tube body abutting between the two sets of tube clamps, and the outer side of the polishing disc abutting against the inner wall of the cold-drawn tube body.

[0007] Preferably, two sets of movable frames are slidably installed inside the connecting seat. A return spring is fixedly installed on one side of each set of movable frames. Movable blocks and connecting rods are slidably installed inside each set of movable frames. The movable blocks are fixedly installed at one end of the corresponding connecting rods. A handle is fixedly installed at the other end of each set of connecting rods. The connecting rods are slidably installed on one side of the connecting seat. A return spring is sleeved on the outside of each set of connecting rods. A locking block is fixedly installed on one side of each set of movable blocks. The locking blocks are movably engaged inside the connecting seat. A locking block is fixedly installed on one side of each set of movable frames. The locking blocks are movably inserted into the outside of the connecting shaft.

[0008] Preferably, two sets of telescopic rods are fixedly installed between the housing and the vertical plate, and a second motor is fixedly installed on one side of the frame, with one set of turntables fixedly installed on the output end of the second motor.

[0009] Preferably, the connecting seat has two sets of sliding grooves inside, the two sets of moving frames are slidably installed in the corresponding sliding grooves, and one end of each of the two sets of return springs is fixedly installed on one side of the corresponding sliding groove.

[0010] Preferably, one end of each of the two sets of reset springs is fixedly installed on one side of the corresponding movable block and one side of the inner wall of the corresponding movable frame.

[0011] Preferably, a mounting groove is provided on one side of the connecting seat, and the connecting shaft is movably inserted into the mounting groove. Two sets of slots are provided on one side of the connecting shaft, and the two sets of slot blocks are movably inserted into the corresponding slots.

[0012] In this utility model, a grinding and polishing device for processing the inner circumference of cold-drawn tubes is described. The device moves a connecting rod, a moving block, and a locking block 1 via a handle. A second return spring retracts, causing the locking block 1 to enter the moving frame, releasing the displacement restriction on the moving frame. Then, the handle, through the connecting rod and moving block, moves the corresponding moving frame relative to each other within the slide groove. The first return spring retracts, causing the two sets of locking blocks 2 to simultaneously disengage from the connecting shaft, releasing the fixing of the connecting shaft and detaching the connecting shaft and the grinding disc from the mounting groove. This allows for quick disassembly of the grinding disc, enabling it to be replaced with a polishing disc or a suitable grinding or polishing disc to be selected based on the different sizes of the cold-drawn tube inner wall. The elastic force of the first and second return springs facilitates the rapid replacement of the grinding or polishing disc. This allows the equipment to easily replace the grinding disc with a polishing disc according to different processing needs, or to select appropriate grinding or polishing tools based on the different sizes of the cold-drawn tube. This greatly improves the equipment's versatility and adaptability, meeting diverse production needs and reducing the cost for enterprises to purchase multiple specialized equipment for different processing tasks.

[0013] This utility model features a reasonable structural design. Motor 2 drives the turntable to rotate, which in turn moves the two sets of support rods relative to each other under the coordinated action of the moving plate and guide rod. This ultimately achieves the clamping of the cold-drawn tube body by the two sets of pipe clamps. Through the ingenious cooperation of the support rods and the moving plate, the two sets of turntables, the moving plate, and the support rods achieve linked clamping actions. This linkage mechanism significantly shortens the clamping time and improves the overall working efficiency of the equipment. The electric push rod drives the grinding assembly to move, and simultaneously, under the constraint of the telescopic rod, Motor 1 drives the grinding disc to perform comprehensive grinding along the inner wall of the cold-drawn tube. This mechanical structure design ensures that the pipe clamps apply clamping force evenly from both sides, keeping the cold-drawn tube stable during grinding and preventing wobbling or displacement due to uneven force. This guarantees the precision and quality of grinding, ensuring that the inner wall of the cold-drawn tube is ground evenly and precisely, meeting production process requirements. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a grinding and polishing device for processing the inner circumference of a cold-drawn tube, as proposed in this utility model.

[0015] Figure 2 This is a cross-sectional structural schematic diagram of a grinding and polishing device for processing the inner circumference of a cold-drawn tube, as proposed in this utility model.

[0016] Figure 3 for Figure 2 A magnified view of part A in the middle;

[0017] Figure 4 This is a partial cross-sectional view of a grinding and polishing device for processing the inner circumference of a cold-drawn tube, as proposed in this utility model.

[0018] In the diagram: 1. Base plate; 2. Vertical plate; 3. Electric push rod; 4. Telescopic rod; 5. Housing; 6. Motor 1; 7. Connecting seat; 8. Connecting shaft; 9. Grinding disc; 10. Cold-drawn tube body; 11. Frame; 12. Motor 2; 13. Turntable; 14. Support rod; 15. Moving plate; 16. Pipe clamp; 17. Guide rod; 18. Moving frame; 19. Return spring 1; 20. Moving block; 21. Locking block 1; 22. Connecting rod; 23. Handle; 24. Return spring 2; 25. Locking block 2. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-4A polishing device for processing the inner circumference of cold-drawn tubes includes: a base plate 1; a vertical plate 2 and a frame 11 are fixedly installed on the top of the base plate 1; an electric push rod 3 is fixedly installed on one side of the vertical plate 2; a housing 5 is fixedly installed on the output end of the electric push rod 3; a motor 6 is fixedly installed inside the housing 5; a connecting seat 7 is fixedly installed on the output end of the motor 6; a connecting shaft 8 is movably inserted into one side of the connecting seat 7; a polishing disc 9 is fixedly installed on one end of the connecting shaft 8; and the inner walls on both sides of the frame 11 are rotated. A turntable 13 is mounted on the frame 11. Four sets of guide rods 17 are fixedly mounted on the inner walls of both sides of the frame 11. Two sets of support rods 14 are hinged to one side of each of the two sets of turntables 13. The same moving plate 15 is hinged to one end of the two sets of support rods 14 on the same side. The two sets of moving plates 15 are slidably mounted on the outside of the four sets of guide rods 17. A pipe clamp 16 is fixedly mounted on one side of each of the two sets of moving plates 15. The cold-drawn pipe body 10 is abutted between the two sets of pipe clamps 16. The outer side of the grinding disc 9 abuts against the inner wall of the cold-drawn pipe body 10.

[0021] In this embodiment, two sets of movable frames 18 are slidably installed inside the connecting seat 7. A return spring 19 is fixedly installed on one side of each set of movable frames 18. Movable blocks 20 and connecting rods 22 are slidably installed inside each set of movable frames 18. The two sets of movable blocks 20 are fixedly installed at one end of the corresponding connecting rods 22. A handle 23 is fixedly installed at the other end of each set of connecting rods 22. The two sets of connecting rods 22 are slidably installed on one side of the connecting seat 7. A return spring 24 is sleeved on the outside of each set of connecting rods 22. A locking block 21 is fixedly installed on one side of each set of movable blocks 20. The two sets of locking blocks 21 are movably locked inside the connecting seat 7. A locking block 25 is fixedly installed on one side of each set of movable frames 18. The two sets of locking blocks 25 are movably inserted into the outside of the connecting shaft 8. This improves the efficiency of equipment use and reduces downtime caused by tool replacement. Especially when batch processing cold-drawn tubes, it can significantly improve production efficiency.

[0022] In this embodiment, two sets of telescopic rods 4 are fixedly installed between the housing 5 and the vertical plate 2. A second motor 12 is fixedly installed on one side of the frame 11. One side of a set of turntables 13 is fixedly installed on the output end of the second motor 12, which helps to improve the accuracy and quality of grinding and prevent uneven grinding or grinding dead corners caused by the shaking of the housing 5.

[0023] In this embodiment, the connecting seat 7 has two sets of sliding grooves inside, and two sets of moving frames 18 are slidably installed in the corresponding sliding grooves. One end of each of the two sets of return springs 19 is fixedly installed on one side of the corresponding sliding groove, so that they can move in a predetermined direction to avoid deviation or shaking, thereby ensuring the stability and reliability of the entire device.

[0024] In this embodiment, one end of each of the two sets of reset springs 24 is fixedly installed on one side of the corresponding moving block 20 and the inner wall of one side of the corresponding moving frame 18. The elastic force of the reset springs 24 can ensure that the moving block 20 returns to its initial position accurately, thus ensuring the repeatability and accuracy of the position of the moving block 20.

[0025] In this embodiment, a mounting groove is provided on one side of the connecting seat 7, and the connecting shaft 8 is movably inserted into the mounting groove. Two sets of slots are provided on one side of the connecting shaft 8, and two sets of locking blocks 25 are movably inserted into the corresponding slots. This eliminates the need for complex positioning and fastening operations, greatly improving installation efficiency.

[0026] In this embodiment, during use, the second motor 12 drives one set of turntables 13 to rotate, which in turn drives two sets of support rods 14 to move relative to each other under the constraint of the moving plate 15 and the guide rod 17. Through the cooperation of the support rods 14 and the moving plate 15, the two sets of turntables 13, the moving plate 15 and the corresponding support rods 14 are linked together, which in turn drives two sets of pipe clamps 16 to clamp the cold-drawn tube body 10. Then, the first motor 6 drives the connecting seat 7, the connecting shaft 8 and the grinding disc 9 to grind the cold-drawn tube. The electric push rod 3 drives the housing 5, the first motor 6, the connecting seat 7, the connecting shaft 8 and the grinding disc 9 to move. Under the constraint of the telescopic rod 4, the grinding disc 9 can grind the inner wall of the cold-drawn tube.

[0027] Activating the electric push rod 3 resets the corresponding component, turning off motor 12, and simultaneously pulling handle 23 moves connecting rod 22, moving block 20, and locking block 21. Reset spring 24 contracts, causing locking block 21 to enter the moving frame 18, releasing the displacement restriction on the moving frame 18. Simultaneously, pulling handle 23 moves the corresponding moving frame 18 relative to the slide groove via connecting rod 22 and moving block 20. Reset spring 19 contracts, causing both sets of locking blocks 25 to simultaneously disengage from connecting shaft 8, releasing the fixing of connecting shaft 8 and detaching connecting shaft 8 and grinding disc 9 from the mounting slot. This allows for quick disassembly of the grinding disc 9, enabling it to be replaced with a polishing disc or a suitable grinding disc or polishing disc to be replaced according to the different sizes of cold-drawn tube inner walls. The quick replacement of the grinding disc or polishing disc is achieved through the elastic force of reset spring 19 and reset spring 24.

[0028] The above provides a detailed description of a grinding and polishing device for processing the inner circumference of cold-drawn tubes, as provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of these embodiments are only intended to aid in understanding the method and core concept of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A grinding and polishing device for processing the inner wall of the circumference of a cold-drawn tube, characterized in that, Include: The bottom plate (1), the top of the bottom plate (1) is fixedly installed with a vertical plate (2) and a frame (11), one side of the vertical plate (2) is fixedly installed with an electric push rod (3), the output end of the electric push rod (3) is fixedly installed with a shell (5), the inside of the shell (5) is fixedly installed with a motor (6), the output end of the motor (6) is fixedly installed with a connecting seat (7), the inside of one side of the connecting seat (7) is movably inserted with a connecting shaft (8), one end of the connecting shaft (8) is fixedly installed with a polishing disc (9), both sides of the frame (11) are rotatably installed with a rotating disc (13), both sides of the frame (11) are fixedly installed with four groups of guide rods (17), both sides of two groups of the rotating disc (13) are hingedly connected with two groups of supporting rods (14), one end of the two groups of the supporting rods (14) on the same side is hingedly connected with the same moving plate (15), two groups of the moving plate (15) are slidably installed on the outside of four groups of guide rods (17), one side of two groups of the moving plate (15) is fixedly installed with a pipe clamp (16), the pipe body (10) is abutted between two groups of the pipe clamp (16), the outside of the polishing disc (9) is abutted with the inner wall of the pipe body (10).

2. The polishing device for processing the inner wall of the cold-drawn tube according to claim 1, wherein The inside of the connecting seat (7) is slidably installed with two groups of moving frames (18), one side of two groups of the moving frames (18) is fixedly installed with a reset spring (19), the inside of two groups of the moving frames (18) is slidably installed with a moving block (20) and a connecting rod (22), two groups of the moving block (20) are fixedly installed on one end of the corresponding connecting rod (22), the other end of two groups of the connecting rod (22) is fixedly installed with a handle (23), two groups of the connecting rod (22) are slidably installed on one side of the connecting seat (7), the outside of two groups of the connecting rod (22) is sleevedly installed with a reset spring (24), one side of two groups of the moving block (20) is fixedly installed with a clamping block (21), two groups of the clamping block (21) are movably clamped in the inside of the connecting seat (7), one side of two groups of the moving frame (18) is fixedly installed with a clamping block (25), two groups of the clamping block (25) are movably inserted on the outside of the connecting shaft (8).

3. The polishing device for processing the inner wall of the cold-drawn tube according to claim 1, wherein The shell (5) and the vertical plate (2) are fixedly installed with two groups of telescopic rods (4), one side of the frame (11) is fixedly installed with a motor (12), one side of one group of the rotating disc (13) is fixedly installed on the output end of the motor (12).

4. The polishing device for processing the inner wall of the cold-drawn tube according to claim 2, wherein The inside of the connecting seat (7) is provided with two groups of sliding grooves, two groups of the moving frame (18) are slidably installed in the corresponding sliding groove, one end of two groups of the reset spring (19) is fixedly installed on one side of the corresponding sliding groove.

5. The polishing device for processing the inner wall of the cold-drawn tube according to claim 2, wherein One end of two groups of the reset spring (24) is fixedly installed on one side of the corresponding moving block (20) and the inner wall of the corresponding moving frame (18).

6. The polishing device for processing the inner wall of the cold-drawn tube according to claim 2, wherein One side of the connecting seat (7) is provided with a mounting groove, the connecting shaft (8) is movably inserted into the mounting groove, one side of the connecting shaft (8) is provided with two groups of clamping grooves, and two groups of the clamping blocks two (25) are movably inserted into the corresponding clamping grooves.

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