Polishing device and method for machining gun barrel

Abstract

The polishing device comprises a polishing equipment base, a first supporting plate is arranged on the back of the top end of the polishing equipment base, guide rails are arranged on the two sides of the outer wall of the first supporting plate, and first fixing pieces are arranged at the other ends, away from the first supporting plate, of the guide rails; a second supporting plate is arranged on the outer wall of the guide rail, a driving device is arranged in the center of the top end of the polishing equipment base, a rotatable rotating block is arranged in the top end of the second supporting plate, a connecting piece is arranged in the front surface of the rotating block, and arc-shaped supporting plates are arranged at the top end of the first supporting plate and the top end of the second supporting plate correspondingly. A grinding device is arranged on the inner side of the sliding plate, and a polishing assembly is arranged at the top end of the polishing equipment base. And through the design of the polishing assembly and the grinding assembly, the outer wall of the gun barrel can be ground, meanwhile, the ground gun barrel can be finely polished, and the smoothness and the overall quality of the surface of the gun barrel are improved.

Description

Technical Field

[0001] The invention relates to the field of gun barrel machining, in particular to a polishing device and method for gun barrel machining. Background Art

[0002] In the modern industrial field, the gun barrel is the core component of the artillery system. Its processing accuracy and surface quality directly affect the shooting accuracy, service life and safety of the gun. The inner and outer walls of the gun barrel usually need to undergo fine machining and polishing to ensure its smoothness, wear resistance and sealing. The traditional gun barrel processing method often relies on manual operation, which is not only inefficient, but also difficult to ensure the consistency and accuracy of processing. With the development of science and technology, automation and precision have become important trends in the field of mechanical processing. In order to meet the needs of high-precision and high-efficiency processing, a polishing device for gun barrel machining has emerged. This device integrates an automatic control system, a precision drive device and an efficient polishing tool to achieve precise fixation, automatic rotation and multi-angle polishing of the gun barrel, greatly improving the processing efficiency and quality. In addition, the design of the polishing device for gun barrel machining also takes into account the safety and convenience of operation. Through a reasonable structural layout and an intelligent operation interface, the difficulty of operation is reduced, human errors are reduced, and strong support is provided for the mass production and quality control of gun barrels.

[0003] At present, in the process of using a polishing device for mechanical processing of a gun barrel, it is impossible to grind the surface of the gun barrel before polishing, resulting in a relatively low polishing effect during the polishing process. At the same time, the wear of the polishing wheel is also relatively large. During the polishing process, the gun barrel will vibrate due to mechanical reasons and cannot perform shock absorption work, so that the stability of the gun barrel during the polishing process is also relatively low. Therefore, a polishing device and method for mechanical processing of a gun barrel are proposed. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a polishing device and method for gun barrel machining.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a polishing device and method for gun barrel machining, comprising a polishing device base, a first support plate is arranged at the top back of the polishing device base, guide rails are arranged on both sides of the outer wall of the first support plate, a first fixing member is arranged at the other end of the guide rail away from the first support plate, the bottom end of the first fixing member is fixedly connected to the polishing device base, a second support plate is arranged on the outer wall of the guide rail, a driving device is arranged at the top center position of the polishing device base, a rotation driving assembly is arranged inside the top of the first support plate, a rotatable rotating block is arranged inside the top of the second support plate, a connecting member is arranged inside the front surface of the rotating block, a gun barrel fixing assembly is arranged inside the connecting member and the rotating block, arc-shaped support plates are arranged at the tops of the first support plate and the second support plate, a movable slide plate is arranged on the outer wall of the arc-shaped support plate, a fixing pin rod is arranged inside the slide plate and the arc-shaped support plate, a grinding device is arranged on the inner side of the slide plate, and a polishing assembly is arranged at the top of the polishing device base.

[0006] Furthermore, a sliding groove is provided at the bottom end of the second support plate, and a slide rail is provided at the connection position between the polishing device base and the sliding groove of the second support plate.

[0007] Furthermore, a through hole for inserting a fixing pin is provided inside the arc-shaped support plate, a thread is provided at one end of the fixing pin, and a threaded hole is provided inside the slide plate for connecting with the fixing pin.

[0008] Furthermore, the driving device includes a second fixing member, which is arranged on the top of the polishing device base, and a first hydraulic cylinder is arranged on the front surface of the second fixing member, and an output end of the first hydraulic cylinder is connected to the second support plate.

[0009] Furthermore, the rotary drive assembly includes a reducer, which is arranged on the back of the first support plate, the input end of the reducer is provided with a first motor, and the output end of the reducer is provided with a first support member.

[0010] Furthermore, the barrel fixing assembly includes an adjusting member, which is arranged inside the connecting member, an extruding member is arranged on the back of the adjusting member, the extruding member is slidably arranged inside the rotating block, a spring is arranged on the back of the extruding member, a sliding member is arranged at the other end of the spring away from the extruding member, and a second supporting member is arranged at the other end of the sliding member away from the spring.

[0011] Furthermore, strip-shaped slide grooves are provided at the upper and lower ends of the inner wall of the rotating block, a sliding block is provided inside the strip-shaped slide groove, and the inner side of the sliding block is connected to the sliding member.

[0012] Further, the grinding device includes a polished rod and a stud, the polished rod is arranged at the inner bottom end of the skateboard, the stud is rotatably arranged at the inner top end of the skateboard, a second motor is arranged on the back of the stud, a moving part is arranged on the outer walls of the polished rod and the stud, a second hydraulic cylinder is arranged on the top of the moving part, a moving frame is arranged on the top of the second hydraulic cylinder, two support blocks are arranged on both sides of the bottom end of the outer wall of the moving frame, a support arm is arranged inside the support block, a rotatable roller is arranged on the inner side of the bottom end of the support arm, a mounting frame is arranged on both sides of the outer wall of the moving frame, a rotatable rotating shaft is arranged inside the mounting frame, an anti-slip part is arranged inside the front surface of the rotating shaft, a third motor is arranged on the back of the mounting frame on the right side, the output end of the third motor is connected to the rotating shaft, a grinding belt roll is arranged on the outer wall of the rotating shaft on the left side, and a winding roller is arranged on the outer wall of the rotating shaft on the right side.

[0013] Furthermore, rotation limit blocks are provided at the connection points between the grinding belt roll, the winding roller and the rotating shaft.

[0014] Furthermore, a torsion spring is provided at the connection between the support block and the support arm.

[0015] Furthermore, the polishing assembly includes a threaded barrel, which is arranged at the four corners of the top of the polishing equipment base, an adjusting column is arranged inside the threaded barrel, a polishing platform is arranged at the top of the adjusting column, and a detachable polishing plate is arranged inside the top of the polishing platform.

[0016] Furthermore, the polishing plate is a polishing cotton plate.

[0017] Furthermore, a rotation limit block is provided at the connection position between the top end of the adjusting column and the polishing platform.

[0018] The beneficial effects of the present invention are as follows: the present invention provides a polishing device and method for machining a gun barrel:

[0019] 1. Improve processing stability: By setting the first support plate, the guide rail and the first fixing member, the stability of the guide rail is ensured, thereby improving the stability of the movement of the second support plate, making the position of the gun barrel during the processing more accurate and stable.

[0020] 2. Enhance the barrel fixing effect: The coordinated use of the barrel fixing assembly and the driving assembly can effectively squeeze and fix the barrel, ensuring the stability of the barrel during the rotational drive work. At the same time, the barrel can be damped during the process to avoid deviation or loosening during the processing.

[0021] 3. Improve polishing efficiency: The setting of the arc-shaped support plate and the slide plate enables the grinding device to be flexibly adjusted according to the barrel, improving the adaptability and efficiency of the polishing work.

[0022] 4. Optimize polishing quality: The design of the polishing component and the grinding component can grind the outer wall of the barrel, and at the same time, the ground barrel can be finely polished, which improves the surface finish and overall quality of the barrel.

[0023] 5. Ease of operation: The use of the fixed pin makes it easier to adjust and fix the position of the slide. The operator can quickly complete the positioning and fixation of the gun barrel, reducing operation time and improving work efficiency.

[0024] In summary, the polishing device and method of the present invention not only improve the stability and efficiency of gun barrel machining through structural optimization and functional integration, but also significantly improve the polishing quality and ease of operation, and have high practical value and promotion potential. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the present invention.

[0026] Figure 2 yes Figure 1 Detail of the exploded cross-section connection structure of the center barrel fixing assembly.

[0027] Figure 3 yes Figure 1 Detailed view of the connection structure of the polished components.

[0028] Figure 4 yes Figure 1 Detailed view of the connection structure of the polished components.

[0029] Figure 5 yes Figure 1 Right view section connection structure details.

[0030] Figure 6 yes Figure 1 Front view section connection structure details.

[0031] Figure 7 yes Figure 1 Detailed view of the front connection structure.

[0032] Figure 8 yes Figure 1 Detailed view of the cross-section connection structure of the grinding component.

[0033] Fig. 9 yes Figure 1 Top view cross-sectional connection structure details of the grinding component.

[0034] Fig.10 yes Figure 1 Top view cross-sectional connection structure details of the grinding component.

[0035] Fig.11 yes Figure 5 A magnified detail of the connection structure at position A in the middle.

[0036] Fig.12 yes Figure 5 A magnified detail of the connection structure at position B in the middle.

[0037] Explanation of the accompanying drawings: 1. polishing equipment base, 2. first support plate, 3. guide rail, 4. first fixing member, 5. second support plate, 6. second fixing member, 7. first hydraulic cylinder, 8. reducer, 9. first motor, 10. first support member, 11. rotating block, 12. connecting member, 13. adjusting member, 14. extrusion member, 15. spring, 16. sliding member, 17. second support member, 18. arc-shaped support plate, 19. slide plate, 20. fixing pin rod, 21. light rod, 22. stud, 23. second motor, 24. moving member, 25. second hydraulic cylinder, 26. moving frame, 27. supporting block, 28. supporting arm, 29. roller, 30. mounting frame, 31. rotating shaft, 32. anti-slip member, 33. third motor, 34. grinding belt roll, 35. winding roller, 36. threaded cylinder, 37. adjusting column, 38. polishing platform, 39. polishing plate. DETAILED DESCRIPTION

[0038] The present invention will be further described below in conjunction with specific embodiments, and it should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the application.

[0039] See also Figure 1-Figure 12 It is a structural schematic diagram of the present invention, a polishing device and method for mechanical processing of a gun barrel, including a polishing device base 1, a first support plate 2 is arranged on the top back of the polishing device base 1, the polishing device base 1 is used to support the first support plate 2, guide rails 3 are arranged on both sides of the outer wall of the first support plate 2, a first fixing member 4 is arranged on the other end of the guide rail 3 away from the first support plate 2, the first fixing member 4 is used to support the guide rail 3 and provide stability for the guide rail 3, the bottom end of the first fixing member 4 is fixedly connected to the polishing device base 1, a second support plate 5 is arranged on the outer wall of the guide rail 3, the guide rail 3 is used to provide stability for the movement of the second support plate 5, and a driving device is arranged at the top center position of the polishing device base 1, and the driving device is used to drive the second support plate 5 to move left and right at the top of the polishing device base 1.

[0040] A rotation drive assembly is provided inside the top end of the first support plate 2, and the drive assembly is used to rotationally drive the gun barrel, and can drive the gun barrel to rotate between the first support plate 2 and the second support plate 5. A rotatable rotating block 11 is provided inside the top end of the second support plate 5, and the rotating block 11 can rotate inside the second support plate 5. A connecting piece 12 is provided inside the front surface of the rotating block 11, and the outer wall of the connecting piece 12 is provided with a thread connected to the rotating block 11. A gun barrel fixing assembly is provided inside the connecting piece 12 and the rotating block 11, and the gun barrel fixing assembly is used to cooperate with the drive assembly to squeeze and fix the gun barrel, and rotate after fixing. The top ends of the first support plate 2 and the second support plate 5 are both provided with an arc-shaped support plate 1 8. A movable slide plate 19 is provided on the outer wall of the arc-shaped support plate 18, and the slide plate 19 can slide on the outer wall of the arc-shaped support plate 18. Fixed pins 20 are provided inside the slide plate 19 and the arc-shaped support plate 18. A through hole for inserting the fixed pin 20 is provided inside the arc-shaped support plate 18. A thread is provided at one end of the fixed pin 20. A threaded hole is provided inside the slide plate 19 for connecting with the fixed pin 20. The fixed pin 20 is used to fix the slide plate 19 after adjusting the position. A grinding device is provided on the inner side of the slide plate 19, and the grinding device is used to polish the outer wall of the gun barrel. A polishing assembly is provided on the top of the polishing equipment base 1, and the polishing assembly is used to polish the gun barrel after grinding.

[0041] It should be noted that a sliding groove is provided at the bottom end of the second support plate 5, and a slide rail is provided at the connection position between the polishing equipment base 1 and the sliding groove of the second support plate 5. The second support plate 5 can slide left and right on the slide rail through the slide groove, and is used to cooperate with the barrel fixing assembly to extrude and fix the barrel.

[0042] Specifically, the driving device includes a second fixing member 6, which is arranged at the top of the polishing equipment base 1. The second fixing member 6 is used to provide support and fixation for the first hydraulic cylinder 7. The front surface of the second fixing member 6 is provided with the first hydraulic cylinder 7. The first hydraulic cylinder 7 is used to drive the second support plate 5 to move, and the output end of the first hydraulic cylinder 7 is connected to the second support plate 5.

[0043] More specifically, the rotary drive assembly includes a reducer 8, which is arranged on the back of the first support plate 2. A first motor 9 is arranged at the input end of the reducer 8. The first motor 9 cooperates with the reducer 8 to drive the first support member 10 to rotate. The output end of the reducer 8 is provided with a first support member 10. The gun barrel to be polished is inserted into the interior of the first support member 10, and the gun barrel is driven to rotate by the rotation of the first support member 10.

[0044] More specifically, the barrel fixing assembly includes an adjusting member 13, which is arranged inside the connecting member 12. The adjusting member 13 can move left and right inside the connecting member 12, and is used to drive the extruding member 14 to move left and right inside the rotating block 11. The back of the adjusting member 13 is provided with an extruding member 14, and the extruding member 14 can be slidably arranged inside the rotating block 11. A spring 15 is provided on the back of the extruding member 14, and the extruding member 14 is used to adjust the elastic coefficient of the spring 15. A sliding member 16 is provided at the other end of the spring 15 away from the extruding member 14. The sliding member 16 cooperates with the spring 15 to fix the barrel during grinding and polishing, and at the same time performs shock absorption and buffering work. Strip grooves are provided at the upper and lower ends of the inner wall of the rotating block 11, and a sliding block is provided inside the strip groove. The inner side of the sliding block is connected to the sliding member 16. The strip groove cooperates with the sliding block to limit the sliding member 16. The other end of the sliding member 16 away from the spring 15 is provided with a second supporting member 17, and the second supporting member 17 is inserted into the outer wall of the barrel.

[0045] More specifically, the grinding device includes a polished rod 21 and a stud 22. The polished rod 21 is arranged at the inner bottom end of the slide 19. The slide 19 can adjust the position of the grinding device during the adjustment process. The stud 22 is rotatably arranged at the inner top end of the slide 19. A second motor 23 is arranged on the back of the stud 22. The second motor 23 is used to drive the stud 22 to rotate between the slides 19. The stud 22 can drive the moving part 24 to move during the rotation process. The polished rod 21 is used to limit and guide the moving part 24 when it moves. The outer walls of the polished rod 21 and the stud 22 are provided with a moving part. 24, a second hydraulic cylinder 25 is provided at the top of the moving member 24, and the second hydraulic cylinder 25 is used to drive the moving frame 26 to move up and down on the outer wall of the moving member 24, and a moving frame 26 is provided at the top of the second hydraulic cylinder 25, and two support blocks 27 are provided on both sides of the bottom end of the outer wall of the moving frame 26, and the support block 27 is used to support the support arm 28, and a torsion spring is provided at the connection between the support block 27 and the support arm 28, and the support arm 28 is provided inside the support block 27, and the support arm 28 can swing outward on the outer wall of the support block 27, and a rotatable roller 29 is provided on the inner side of the bottom end of the support arm 28, and the support arm 28 is used to drive the roller 29 to move, and the roller 29 is used to support the grinding belt. Both sides of the outer wall of the mobile frame 26 are provided with mounting frames 30, and the mounting frames 30 are used to install and support the rotating shaft 31. A rotatable rotating shaft 31 is provided inside the mounting frame 30, and the rotating shaft 31 can rotate inside the mounting frame 30. An anti-slipping piece 32 is provided inside the front surface of the rotating shaft 31, and the anti-slipping piece 32 is used to prevent the grinding belt 34 and the winding roller 35 from falling off the rotating shaft 31. A third motor 33 is provided on the back of the right mounting frame 30, and the third motor 33 is used to drive the rotating shaft 31 to rotate in the mounting frame 30. The internal rotation of the mounting frame 30, the output end of the third motor 33 is connected to the rotating shaft 31, the outer wall of the left rotating shaft 31 is provided with a grinding belt roll 34, the grinding belt roll 34 can be inserted and pulled out from the outer wall of the rotating shaft 31, the other end of the grinding belt of the grinding belt roll 34 is connected to the winding roller 35, the outer wall of the right rotating shaft 31 is provided with a winding roller 35, the winding roller 35 is used to wind up the used grinding belt, the connection between the grinding belt roll 34 and the winding roller 35 and the rotating shaft 31 is provided with a rotation limit block, the limit block is used to drive the grinding belt roll 34 and the winding roller 35 to rotate when the rotating shaft 31 rotates.

[0046] More specifically, the polishing assembly includes a threaded barrel 36, which is arranged at the four corners of the top of the polishing equipment base 1. An adjusting column 37 is arranged inside the threaded barrel 36. When the adjusting column 37 is rotated, it can move up and down inside the threaded barrel 36. A polishing platform 38 is arranged at the top of the adjusting column 37. When adjusting, the adjusting column 37 can adjust the height of the polishing platform 38. A detachable polishing plate 39 is arranged inside the top of the polishing platform 38. The polishing plate 39 is used to polish the polished gun barrel. The polishing plate 39 is made of a polishing cotton plate. A rotation limit block is arranged at the connection position between the top of the adjusting column 37 and the polishing platform 38. The bottom end of the polishing platform 38 can be rotated by rotating the limit block, and the polishing platform 38 will not fall off from the bottom end of the polishing platform 38.

[0047] When the present invention is used:

[0048] First, insert one end of the gun barrel that needs to be polished into the interior of the first support member 10, and then control the first hydraulic cylinder 7 to start working through the control unit. When the first hydraulic cylinder 7 starts working, it drives the second support plate 5 to move to the right at the top of the polishing equipment base 1. The second support plate 5 guides through the guide rail 3 while moving. When the second support plate 5 moves to the right, it drives the second support member 17 to move to the right to clamp and fix the gun barrel, thereby completing the fixing of the gun barrel. After fixation, the first motor 9 is driven by the control unit. When the first motor 9 starts working, it drives the first support member 10 to rotate through the reducer 8. The first support member 10 drives the gun barrel to rotate when it rotates, and the rotating block 11, the sliding member 16 and the second support member 17 cooperate to rotate when it rotates.

[0049] When shock absorption is required during the grinding and polishing of the gun barrel, the elastic coefficient of the spring 15 needs to be adjusted. During the adjustment process, the adjusting member 13 is rotated. The adjusting member 13 rotates inside the connecting member 12. The adjusting member 13 moves inward during the rotation. During the movement, the adjusting member 13 drives the extruding member 14 to move inward inside the rotating block 11. During the movement, the extruding member 14 adjusts the strength of the spring 15, thereby adjusting the elastic coefficient of the spring 15. The shock absorption effect of the sliding member 16 and the second supporting member 17 is increased by the reaction force of the spring 15.

[0050] When it is necessary to grind the gun barrel, first remove the anti-slip part 32 from the rotating shaft 31, and after removal, insert the grinding belt roll 34 into the outer wall of the rotating shaft 31, and at the same time insert the winding roller 35 into the outer wall of the rotating shaft 31 on the other side. After the installation is completed, install the anti-slip part 32 onto the rotating shaft 31, and after the installation is completed, pull out the grinding belt on the grinding belt roll 34, and after pulling out, stick the grinding belt to the outer wall of the bottom end of the drum 29, and after sticking, fix the pulled-out end of the grinding belt to the winding roller 35, and start the grinding work after fixing. During grinding, the control unit controls the second hydraulic cylinder 25 to start working, and the second hydraulic cylinder 25 drives the moving frame 26 to move downward. When the moving frame 26 moves downward, the supporting arm 28 and the drum 29 drive the grinding belt and The outer walls of the gun barrel are fitted together. After fitting, the control unit controls the first motor 9 to drive the gun barrel to rotate. After rotation, the gun barrel is polished by the polishing belt. During the polishing process, the second motor 23 is controlled to start working at the same time. When the second motor 23 starts working, it drives the stud 22 to rotate on the inner side of the slide 19. When the stud 22 rotates, it can drive the moving part 24 to move left and right, so as to polish different positions of the gun barrel. During the polishing process, the third motor 33 needs to be intermittently controlled. When the third motor 33 starts working, it can drive one side of the rotating shaft 31 to rotate. When the rotating shaft 31 rotates, it can drive the winding roller 35 to rotate. When the winding roller 35 rotates, it can intermittently wind up the worn polishing belt, so that the gun barrel can be polished.

[0051] When it is necessary to polish the ground gun barrel, the adjusting column 37 is rotated. The adjusting column 37 rotates at the bottom end of the polishing platform 38. When the adjusting column 37 rotates, it moves upward inside the threaded tube 36. When the adjusting column 37 moves upward, it drives the polishing platform 38 to move upward. When the polishing platform 38 moves upward, it drives the polishing plate 39 to move upward and fit the gun barrel. After fitting, the gun barrel is rotated to perform polishing. The polishing plate 39 can be installed and disassembled from the polishing platform 38 to complete the replacement work.

Claims

1. A polishing device and method for machining a gun barrel, comprising a polishing device base (1), characterized in that: A first support plate (2) is arranged at the back of the top end of the polishing device base (1); guide rails (3) are arranged on both sides of the outer wall of the first support plate (2); a first fixing member (4) is arranged at the other end of the guide rail (3) away from the first support plate (2); the bottom end of the first fixing member (4) is fixedly connected to the polishing device base (1); a second support plate (5) is arranged on the outer wall of the guide rail (3); a driving device is arranged at the center of the top end of the polishing device base (1); a rotating driving assembly is arranged inside the top end of the first support plate (2); and a rotating driving assembly is arranged inside the top end of the second support plate (5). A rotatable rotating block (11) is provided, a connecting piece (12) is arranged inside the front surface of the rotating block (11), a barrel fixing assembly is arranged inside the connecting piece (12) and the rotating block (11), the top ends of the first supporting plate (2) and the second supporting plate (5) are both provided with an arc-shaped supporting plate (18), the outer wall of the arc-shaped supporting plate (18) is provided with a movable slide plate (19), the insides of the slide plate (19) and the arc-shaped supporting plate (18) are provided with a fixing pin rod (20), a grinding device is arranged on the inner side of the slide plate (19), and a polishing assembly is arranged at the top end of the polishing device base (1).

2. A polishing device and method for gun barrel machining according to claim 1, characterized in that: The bottom end of the second support plate (5) is provided with a sliding groove, and a sliding rail is provided at the connection position between the polishing equipment base (1) and the sliding groove of the second support plate (5).

3. A polishing device and method for gun barrel machining according to claim 2, characterized in that: The arc-shaped support plate (18) is provided with a through hole for inserting a fixing pin (20), one end of the fixing pin (20) is provided with a thread, and the slide plate (19) is provided with a threaded hole for connecting with the fixing pin (20).

4. A polishing device and method for machining a gun barrel according to claim 3, characterized in that: The driving device comprises a second fixing member (6), the second fixing member (6) being arranged at the top end of the polishing device base (1), a first hydraulic cylinder (7) being arranged on the front surface of the second fixing member (6), and an output end of the first hydraulic cylinder (7) being connected to the second supporting plate (5).

5. A polishing device and method for gun barrel machining according to claim 4, characterized in that: The rotary drive assembly comprises a reducer (8), wherein the reducer (8) is arranged on the back of the first support plate (2), a first motor (9) is arranged at the input end of the reducer (8), and a first support member (10) is arranged at the output end of the reducer (8).

6. A polishing device and method for gun barrel machining according to claim 5, characterized in that: The gun barrel fixing assembly comprises an adjusting member (13), wherein the adjusting member (13) is arranged inside a connecting member (12), an extruding member (14) is arranged on the back of the adjusting member (13), the extruding member (14) is slidably arranged inside a rotating block (11), a spring (15) is arranged on the back of the extruding member (14), a sliding member (16) is arranged at the other end of the spring (15) away from the extruding member (14), and a second supporting member (17) is arranged at the other end of the sliding member (16) away from the spring (15).

7. A polishing device and method for gun barrel machining according to claim 6, characterized in that: The inner wall of the rotating block (11) is provided with strip-shaped sliding grooves at the upper and lower ends, and a sliding block is provided inside the strip-shaped sliding groove, and the inner side of the sliding block is connected to the sliding member (16).

8. A polishing device and method for gun barrel machining according to claim 7, characterized in that: The polishing device comprises a polished rod (21) and a stud (22), wherein the polished rod (21) is arranged at the inner bottom end of the slide plate (19), the stud (22) is rotatably arranged at the inner top end of the slide plate (19), a second motor (23) is arranged at the back of the stud (22), a moving part (24) is arranged on the outer wall of the polished rod (21) and the stud (22), a second hydraulic cylinder (25) is arranged at the top end of the moving part (24), a moving frame (26) is arranged at the top end of the second hydraulic cylinder (25), two support blocks (27) are arranged on both sides of the outer wall bottom end of the moving frame (26), and the inner part of the support block (27) is provided with a second hydraulic cylinder (25). A support arm (28) is provided, and a rotatable roller (29) is provided on the inner side of the bottom end of the support arm (28); mounting frames (30) are provided on both sides of the outer wall of the movable frame (26); a rotatable rotating shaft (31) is provided inside the mounting frame (30); an anti-slipping piece (32) is provided inside the front surface of the rotating shaft (31); a third motor (33) is provided on the back of the right mounting frame (30); an output end of the third motor (33) is connected to the rotating shaft (31); a grinding belt roll (34) is provided on the outer wall of the left rotating shaft (31); and a winding roller (35) is provided on the outer wall of the right rotating shaft (31).

9. A polishing device and method for gun barrel machining according to claim 8, characterized in that: The connection points between the grinding belt roll (34) and the winding roller (35) and the rotating shaft (31) are all provided with rotation limit blocks.

10. A polishing device and method for gun barrel machining according to claim 9, characterized in that: A torsion spring is provided at the connection between the support block (27) and the support arm (28).

11. A polishing device and method for gun barrel machining according to claim 10, characterized in that: The polishing assembly comprises a threaded barrel (36), wherein the threaded barrel (36) is arranged at the four corners of the top end of the polishing device base (1), an adjusting column (37) is arranged inside the threaded barrel (36), a polishing platform (38) is arranged at the top end of the adjusting column (37), and a detachable polishing plate (39) is arranged inside the top end of the polishing platform (38).

12. A polishing device and method for gun barrel machining according to claim 11, characterized in that: The polishing plate (39) is a polishing cotton plate.

13. A polishing device and method for gun barrel machining according to claim 12, characterized in that: A rotation limit block is provided at the connection position between the top end of the adjustment column (37) and the polishing platform (38).

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