Pipe cutting machine with high machining precision

Abstract

The utility model discloses a pipe cutting machine with high machining precision relates to pipe cutting machine technical field, including base, the top fixedly connected with U type support seat of base, the top both ends of base are connected with buffer seat device of sliding, the both ends side wall of base are all fixedly connected with first hydraulic rod, and one end of both ends first hydraulic rod is fixedly connected with the side wall of buffer seat device, the top fixedly connected with support column of U type support seat, and the top fixedly connected with support frame of both ends support column, the top fixedly connected with second hydraulic rod of support frame, and the both ends support column rod wall slidingly connected with sliding frame are provided. The base provided by the utility model strengthens machining precision on the basis of realizing buffer shock attenuation of cutting device and fixed clamping device to solve the problem of burr flash caused by the lack of buffer of pipe fixing mechanism due to vibration conduction of the existing pipe cutting machine, and the machining precision deviation.

Description

Technical Field

[0001] This utility model relates to the field of pipe cutting machine technology, and specifically to a pipe cutting machine with high processing precision. Background Technology

[0002] A pipe cutting machine is a device specifically designed for cutting various types of pipes (such as metal pipes, plastic pipes, composite pipes, etc.). It can achieve cutting through mechanical, laser, plasma, and other methods and is widely used in industries such as pipeline construction, machinery manufacturing, and construction.

[0003] In the use of existing pipe cutting machines, the deviation in processing accuracy caused by vibration has become a prominent problem. When the equipment is running, the periodic vibration generated by the high-speed rotation of the cutting components is transmitted through the machine body to the pipe processing area, causing slight deviations in the cutting trajectory. Especially when processing thin-walled pipes or irregularly shaped pipes with high precision requirements, the cumulative error can reach more than 0.1mm, which cannot meet the tolerance requirements of precision assembly scenarios. In addition, the lack of an effective buffer mechanism in the pipe fixing mechanism during the cutting process also restricts the improvement of processing quality. The impact force generated when the cutting tool comes into contact with the pipe directly acts on the rigid clamping structure, causing high-frequency micro-vibrations of the pipe along the axial and radial directions. This vibration continues to accumulate during the cutting process, resulting in the formation of burrs and flash. For pipes that need to be used directly for sealing or precision connection, such defects will lead to assembly sealing failure and excessive connection gaps, requiring an additional investment of more than 30% of the time for secondary grinding, which seriously affects production efficiency. Summary of the Invention

[0004] In view of the problems existing in the current high-precision pipe cutting machine, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a pipe cutting machine with high processing precision, which solves the problems of processing precision deviation caused by vibration transmission in existing pipe cutting machines, and burrs and flash caused by the lack of buffer in the pipe fixing mechanism.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-precision pipe cutting machine includes a base, a U-shaped support seat fixedly connected to the top of the base, buffer seats slidably connected to both ends of the top of the base, a first hydraulic rod fixedly connected to the side wall of both ends of the base, one end of the first hydraulic rod at both ends being fixedly connected to the side wall of the buffer seat device, a support column fixedly connected to the top of the U-shaped support seat, a support frame fixedly connected to the top of the support column at both ends, a second hydraulic rod fixedly connected to the top of the support frame, and a sliding frame slidably connected to the wall of the support column at both ends.

[0008] The bottom of the sliding frame is fixedly connected to a circular saw device via a buffer mechanism. One end of the second hydraulic rod passes through the support frame and is fixedly connected to the top of the sliding frame. A bracket is fixedly connected to the side wall of the circular saw device. A cutting fluid nozzle is fixedly connected to the bottom of the bracket. A solid-liquid separation plate is fixedly connected to the top of the U-shaped support seat via an opening. A placement platform is fixedly connected to the top of the buffer seat device via a pushing mechanism. Arc-shaped clamps are fixedly connected to both ends of the top of the placement platform via a transmission mechanism.

[0009] Preferably, the buffer mechanism includes guide posts, guide openings, a first polyurethane buffer ring, a friction sleeve, a first hydraulic spring buffer, and a polyurethane buffer pad. Guide posts are fixedly connected to both ends of the top of the sliding frame, and guide openings are provided at both ends of the bottom of the support frame. One end of each guide post passes through the corresponding guide opening and is fixedly connected to the first polyurethane buffer ring and the friction sleeve. A first hydraulic spring buffer is fixedly connected to both ends of the cavity of the support frame. One end of each first hydraulic spring buffer is fixedly connected to the top of the friction sleeve. A polyurethane buffer pad is fixedly connected between the cutting circular saw device and the side wall of the sliding frame.

[0010] Preferably, the transmission mechanism includes a bidirectional threaded rod, a threaded sleeve, a motor, and a movable slide. The cavities of the two end placement platforms are rotatably connected to the bidirectional threaded rod, and the two ends of the bidirectional threaded rod are threadedly connected to the threaded sleeve. The side walls of the two end placement platforms are fixedly connected to the motor, and one end of the motor is fixedly connected to one end of the bidirectional threaded rod. The top two ends of the placement platform are provided with movable slides, and the bottom of each arc-shaped clamp passes through the corresponding movable slide and is fixedly connected to the side wall of the corresponding threaded sleeve.

[0011] Preferably, the buffer seat devices at both ends each include a support chamber, and the top of the support chamber is provided with friction ports around its perimeter, and friction columns are frictionally connected to it. A second hydraulic spring buffer is fixedly connected to the perimeter of the cavity of the support chamber. The top of each friction column is fixedly connected to the bottom of the placement platform, and the bottom of each friction column is fixedly connected to the top of the second hydraulic spring buffer. A second polyurethane buffer ring is fitted onto the outer wall of each friction column.

[0012] Furthermore, a drainage connection pipe is fixedly connected to the bottom of the U-shaped support.

[0013] Preferably, each of the arc-shaped clamps has an anti-slip buffer coating on its surface, the anti-slip buffer coating being composed of a mixture of polyurethane elastomer and silicon carbide particles.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. This utility model utilizes guide columns and a first polyurethane buffer ring set in the buffer mechanism to consume cutting vibration energy through elastic deformation and friction, and uses friction columns and a second hydraulic spring buffer set in the buffer seat device to buffer the feed vibration, thereby reducing the impact of vibration on cutting accuracy and reducing the probability of burr generation.

[0016] 2. This utility model utilizes an arc-shaped clamping plate to achieve synchronous clamping through a bidirectional threaded rod of a transmission mechanism, ensuring uniform force distribution and preventing deviation. The polyurethane elastomer and silicon carbide particles on the surface anti-slip buffer coating protect the pipe surface, enhance anti-slip properties, and improve fixing stability.

[0017] 3. This utility model utilizes a solid-liquid separation plate to separate cutting fluid and chips, and a drainage connection pipe facilitates recycling, reducing resource waste. The various buffer structures reduce equipment wear, extend service life, and keep the equipment clean. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a cross-sectional schematic diagram of the U-shaped support base of this utility model.

[0021] Figure 3 This is a cross-sectional schematic diagram of the buffer seat device of this utility model.

[0022] Figure 4 For the present utility model Figure 4 Enlarged schematic diagram of part A.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Base; 2. U-shaped support seat; 3. Buffer seat device; 4. First hydraulic rod; 5. Support column; 6. Support frame; 7. Second hydraulic rod; 8. Sliding frame; 9. Circular cutting saw device; 10. Bracket; 11. Cutting fluid connection nozzle; 12. Solid-liquid separation plate; 13. Placement platform; 14. Arc-shaped clamp; 15. Guide column; 16. Guide port; 17. First polyurethane buffer ring; 18. Friction sleeve; 19. First hydraulic spring buffer; 20. Polyurethane buffer pad; 21. Bidirectional threaded rod; 22. Threaded sleeve; 23. Motor; 24. Moving slide; 25. Support chamber; 26. Friction port; 27. Friction column; 28. Second hydraulic spring buffer; 29. ​​Second polyurethane buffer ring; 30. Drainage connection pipe. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model discloses a pipe cutting machine with high processing precision.

[0027] This utility model provides, for example Figure 1-4 The pipe cutting machine with high processing precision shown includes a base 1, a U-shaped support seat 2 fixedly connected to the top of the base 1, buffer seat devices 3 slidably connected to both ends of the top of the base 1, a first hydraulic rod 4 fixedly connected to both side walls of the base 1, one end of the first hydraulic rod 4 fixedly connected to the side wall of the buffer seat device 3, a support column 5 fixedly connected to the top of the U-shaped support seat 2, a support frame 6 fixedly connected to the top of the support column 5 at both ends, a second hydraulic rod 7 fixedly connected to the top of the support frame 6, and a sliding frame 8 slidably connected to the rod wall of the support column 5 at both ends.

[0028] The bottom of the sliding frame 8 is fixedly connected to the circular saw device 9 via a buffer mechanism. One end of the second hydraulic rod 7 passes through the support frame 6 and is fixedly connected to the top of the sliding frame 8. A bracket 10 is fixedly connected to the side wall of the circular saw device 9, and a cutting fluid nozzle 11 is fixedly connected to the bottom of the bracket 10. A solid-liquid separation plate 12 is fixedly connected to the top of the U-shaped support seat 2 through an opening. The top of the buffer seat device 3 is fixedly connected to a placement platform 13 via a pushing mechanism. Arc-shaped clamps 14 are fixedly connected to both ends of the top of the placement platform 13 via a transmission mechanism. The buffer seat device 3 can buffer the vibration generated during pipe fixing and cutting, reducing the impact on processing accuracy. The first hydraulic rod 4 provides power for the movement of the buffer seat device 3, facilitating the adjustment of the pipe position. The support column 5 and support frame 6 cooperate to support the second hydraulic rod 7 and the sliding frame 8, ensuring the cutting mechanism... To ensure stability, the second hydraulic rod 7 drives the sliding frame 8 to rise and fall along the support column 5, realizing the feed action of the circular saw device 9, controlling the cutting depth and speed. The buffer mechanism reduces the vibration transmission of the circular saw device 9 during operation, improving processing accuracy. The circular saw device 9 is used to cut the pipe. The bracket 10 fixes the cutting fluid connection nozzle 11, enabling it to accurately spray the cutting fluid, reducing the cutting temperature and burrs. The solid-liquid separation plate 12 separates the cutting fluid and chips, facilitating the recycling of the cutting fluid. The propulsion mechanism drives the placement table 13 to move, adjusting the relative position of the pipe and the circular saw. The transmission mechanism drives the arc-shaped clamping plate 14 to clamp the pipe, preventing slippage during cutting. This solves the problems of processing accuracy deviation caused by vibration transmission in existing pipe cutting machines, and burrs and flash caused by the lack of buffer in the pipe fixing mechanism.

[0029] To reduce vibration transmission during cutting and improve machining accuracy, such as Figure 2 and 4 As shown, the buffer mechanism includes guide posts 15, guide openings 16, a first polyurethane buffer ring 17, a friction sleeve 18, a first hydraulic spring buffer 19, and a polyurethane buffer pad 20. Guide posts 15 are fixedly connected to the top two ends of the sliding frame 8, and guide openings 16 are opened at the bottom two ends of the support frame 6. One end of the guide posts 15 at both ends passes through the corresponding guide openings 16 and is fixedly connected to the first polyurethane buffer ring 17 and the friction sleeve 18. The first hydraulic spring buffer 19 is fixedly connected to both ends of the cavity of the support frame 6. One end of the first hydraulic spring buffer 19 at both ends is fixedly connected to the top of the friction sleeve 18. A polyurethane buffer pad 20 is fixedly connected between the cutting circular saw device 9 and the side wall of the sliding frame 8. The guide posts 15 and guide openings 16 are used to ensure that the sliding frame 8 rises and falls smoothly. The first polyurethane buffer ring 17, the friction sleeve 18, and the first hydraulic spring buffer 19 consume vibration energy through elastic deformation and friction. The polyurethane buffer pad 20 further absorbs the vibration of the cutting circular saw device 9, reducing the impact of vibration on cutting accuracy.

[0030] To achieve synchronous clamping of the curved clamping plates and ensure stable fixing of the pipe, such as Figure 1-3 As shown, the transmission mechanism includes a bidirectional threaded rod 21, a threaded sleeve 22, a motor 23, and a movable slide 24. The bidirectional threaded rod 21 is rotatably connected to the cavity of the two end placement platforms 13. The two ends of the bidirectional threaded rod 21 are threadedly connected to the rod walls of the two ends of the rod. The motor 23 is fixedly connected to the side walls of the two end placement platforms 13. One end of the motor 23 is fixedly connected to one end of the bidirectional threaded rod 21. Movable slides 24 are opened at both ends of the top of the placement platform 13. The bottom of each arc-shaped clamp 14 passes through the corresponding movable slide 24 and is fixedly connected to the side wall of the corresponding threaded sleeve 22. The motor 23 drives the bidirectional threaded rod 21 to rotate, causing the two end threaded sleeves 22 to move closer or further away from the movable slide 24 synchronously, so that the arc-shaped clamp 14 clamps the pipe evenly, avoiding uneven force that causes the pipe to shift and improving the fixing stability.

[0031] To buffer vibrations during pipe feeding and protect the pipes and equipment, such as Figure 1 and 3 As shown, both end buffer seat devices 3 include support chambers 25. Friction ports 26 are opened around the top of the support chambers 25, and friction columns 27 are frictionally connected. Second hydraulic spring buffers 28 are fixedly connected around the cavity of the support chambers 25. The top of each friction column 27 is fixedly connected to the bottom of the placement platform 13, and the bottom of each friction column 27 is fixedly connected to the top of the second hydraulic spring buffer 28. A second polyurethane buffer ring 29 is sleeved on the outer wall of each friction column 27. The friction between the friction column 27 and the friction port 26 is used to consume vibration energy. The second hydraulic spring buffer 28 and the second polyurethane buffer ring 29 buffer the impact during feeding through elastic deformation, reduce the impact of vibration on the pipe and the cutting mechanism, and reduce the probability of burr generation.

[0032] To facilitate the discharge of cutting fluid and chips, and to achieve cutting fluid recovery, such as Figure 2 As shown, a drain connection pipe 30 is fixedly connected to the bottom of the U-shaped support 2. The cutting fluid and chips separated by the solid-liquid separation plate 12 can be discharged through the drain connection pipe 30, which facilitates the filtration and recycling of cutting fluid, reduces resource waste, and keeps the equipment clean.

[0033] To enhance the anti-slip and cushioning properties of the curved clamp and protect the pipe surface, such as Figure 1-3 As shown, each arc-shaped clamp 14 has an anti-slip buffer coating on its surface. The anti-slip buffer coating is composed of a mixture of polyurethane elastomer and silicon carbide particles. The polyurethane elastomer provides a buffering effect to avoid damage to the pipe surface when clamping, while the silicon carbide particles increase friction to prevent slippage when the pipe is cut, thereby improving the fixing effect and processing quality.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-precision pipe cutting machine, comprising a base (1), characterized in that, The top of the base (1) is fixedly connected to a U-shaped support seat (2), and the two ends of the top of the base (1) are slidably connected to a buffer seat device (3). The two side walls of the base (1) are fixedly connected to a first hydraulic rod (4). One end of the first hydraulic rod (4) at both ends is fixedly connected to the side wall of the buffer seat device (3). The top of the U-shaped support seat (2) is fixedly connected to a support column (5). The top of the two support columns (5) at both ends is fixedly connected to a support frame (6). The top of the support frame (6) is fixedly connected to a second hydraulic rod (7). The rod walls of the two support columns (5) at both ends are slidably connected to a sliding frame (8). The bottom of the sliding frame (8) is fixedly connected to a circular saw device (9) via a buffer mechanism. One end of the second hydraulic rod (7) passes through the support frame (6) and is fixedly connected to the top of the sliding frame (8). A bracket (10) is fixedly connected to the side wall of the circular saw device (9). A cutting fluid nozzle (11) is fixedly connected to the bottom of the bracket (10). A solid-liquid separation plate (12) is fixedly connected to the top of the U-shaped support seat (2). A placement platform (13) is fixedly connected to the top of the buffer seat device (3) via a push mechanism. Arc-shaped clamps (14) are fixedly connected to the top ends of the placement platform (13) via a transmission mechanism.

2. The high-precision pipe cutting machine according to claim 1, characterized in that, The buffer mechanism includes a guide post (15), a guide port (16), a first polyurethane buffer ring (17), a friction sleeve (18), a first hydraulic spring buffer (19), and a polyurethane buffer pad (20). The top two ends of the sliding frame (8) are fixedly connected to the guide post (15), and the bottom two ends of the support frame (6) are provided with guide ports (16). One end of the guide post (15) at both ends passes through the corresponding guide port (16) and is fixedly connected to the first polyurethane buffer ring (17) and the friction sleeve (18). The two ends of the cavity of the support frame (6) are fixedly connected to the first hydraulic spring buffer (19). One end of the first hydraulic spring buffer (19) at both ends is fixedly connected to the top of the friction sleeve (18). The cutting circular saw device (9) and the side wall of the sliding frame (8) are fixedly connected to the polyurethane buffer pad (20).

3. The high-precision pipe cutting machine according to claim 1, characterized in that, The transmission mechanism includes a bidirectional threaded rod (21), a threaded sleeve (22), a motor (23), and a movable slide (24). The cavity of the two end placement platforms (13) is rotatably connected to the bidirectional threaded rod (21). The two ends of the bidirectional threaded rod (21) are threadedly connected to the threaded sleeve (22). The side walls of the two end placement platforms (13) are fixedly connected to the motor (23). One end of the motor (23) is fixedly connected to one end of the bidirectional threaded rod (21). The top two ends of the placement platform (13) are provided with movable slides (24). The bottom of each arc-shaped clamp (14) passes through the corresponding movable slide (24) and is fixedly connected to the side wall of the corresponding threaded sleeve (22).

4. A high-precision pipe cutting machine according to claim 1, characterized in that, Both ends of the buffer seat device (3) include a support chamber (25). The top of the support chamber (25) is provided with friction ports (26) and friction columns (27) are connected to it. The cavity of the support chamber (25) is fixedly connected with a second hydraulic spring buffer (28). The top of each friction column (27) is fixedly connected to the bottom of the placement platform (13), and the bottom of each friction column (27) is fixedly connected to the top of the second hydraulic spring buffer (28). The outer wall of each friction column (27) is fitted with a second polyurethane buffer ring (29).

5. A high-precision pipe cutting machine according to claim 1, characterized in that, The bottom of the U-shaped support (2) is fixedly connected to a drainage connection pipe (30).

6. A high-precision pipe cutting machine according to claim 1, characterized in that, Each of the arc-shaped clamps (14) has an anti-slip buffer coating on its surface, which is composed of a mixture of polyurethane elastomer and silicon carbide particles.

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