A metal hydraulic pipeline joint cutting and machining device

Abstract

This utility model discloses a metal hydraulic pipeline joint cutting and processing device, including a drive assembly, an output head at the output end of the drive assembly, a fastening sleeve on one side of the output head, a fastening rod on the inner side of the fastening sleeve, a rotating sleeve on the outer side of the fastening sleeve, a rotating block on one side of the rotating sleeve, a sliding sleeve on the outer side of the fastening sleeve, a sliding block on the outer side of the sliding sleeve, a limiting plate on the outer side of the fastening sleeve with a limiting groove, a return spring on the outer side of the fastening sleeve, a locking sleeve on the outer side of the fastening sleeve with a fixing groove, a vertical plate on one side of the locking sleeve, a movable groove on the inner side of the sliding sleeve, a positioning plate on the vertical plate, a locking frame on one side of the rotating sleeve with a locking rod in the locking frame, a locking plate at one end of the locking rod, a movable block in the movable groove, and a fastening frame on one side of the movable block. This utility model realizes tool-free and convenient disassembly and replacement of the cutting head, and ensures the structural stability of the cutting head after installation.

Description

Technical Field

[0001] This utility model relates to the field of metal hydraulic pipeline joint cutting and processing technology, and more specifically, it relates to a metal hydraulic pipeline joint cutting and processing device. Background Technology

[0002] With the rapid development of modern industrial manufacturing technology and the continuous expansion of the application fields of hydraulic systems, the processing accuracy requirements and surface quality standards for metal hydraulic pipeline joints are becoming increasingly stringent. As a key piece of equipment for achieving high-precision machining of hydraulic pipeline joints, the performance and operational stability of the cutting head directly determine the dimensional accuracy, surface roughness, geometric tolerances, and overall quality level of the processed products. In existing technologies, when performing periodic maintenance and replacement of the cutting head, the cutting head and spindle typically use traditional mechanical connections such as high-strength threaded connections. This usually requires the use of various specialized tools such as special wrenches, socket wrenches, and Allen wrenches for auxiliary disassembly and assembly operations. The disassembly and assembly process is complex and cumbersome, and each replacement is time-consuming. Furthermore, if the special tools do not meet the equipment configuration requirements, are incomplete, are worn or damaged, or are accidentally lost, it will be impossible to disassemble and replace the cutting head in a timely manner, affecting the normal operating efficiency of the equipment and the continuity of production operations.

[0003] Secondly, while some improved cutting equipment achieves tool-free disassembly and replacement of the cutting head through the cooperation of some special components, simplifying the operation process of cutting head maintenance and replacement to a certain extent and improving the convenience and efficiency of maintenance work, its overall structural design is relatively simple and crude, lacking mechanical strength and connection stability, with poor vibration resistance and impact resistance. Its long-term reliability and service life are limited. It is easily affected by various complex external forces such as rotational centrifugal force, cutting resistance impact, workpiece material reaction force, and equipment operation vibration during the cutting process, as well as the long-term effects of harsh working environment conditions. This can lead to problems such as loosening of the connection and failure of locking in the quick disassembly and fixing structure, and even safety accidents such as sudden loosening of the fixing mechanism and accidental fall of the cutting head. This not only affects the accuracy and stability of cutting and the consistency of surface quality, but may also cause significant economic losses such as cutting head damage, workpiece scrapping, equipment failure, and production interruption, and even pose a serious threat to the personal safety of operators. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a metal hydraulic pipeline joint cutting and processing device to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a metal hydraulic pipeline joint cutting and processing device, comprising a drive assembly, an output head connected to the output end of the drive assembly, a detachable fastening sleeve on one side of the output head, a detachable fastening rod on the inner side of the fastening sleeve, a rotating sleeve rotatably mounted on the outer side of the fastening sleeve, a rotating block fixedly mounted on one side of the rotating sleeve, a sliding sleeve slidably mounted on the outer side of the fastening sleeve, a sliding block fixedly mounted on the outer side of the sliding sleeve, both the sliding block and the rotating block being of an inclined structure design, a limiting plate rotatably mounted on the outer side of the fastening sleeve, a limiting groove formed on the limiting plate, and a return spring movably mounted on the outer side of the fastening sleeve, the two ends of the return spring being connected to the sliding sleeve and the fastening sleeve respectively. Next, a locking sleeve is fitted on the outer side of the fastening sleeve, and multiple fixing grooves are opened on the outer side of the fastening sleeve. A vertical plate is fixedly connected to one side of the locking sleeve. A movable groove is opened on the inner side of the sliding sleeve. A positioning plate is fixedly installed on the vertical plate. The positioning plate is provided in three places. A locking frame is fixedly installed on one side of the rotating sleeve. A locking rod is slidably installed in the locking frame. A locking plate is connected to one end of the locking rod. One end of the locking rod is inserted into the fixing groove. A movable block is movably installed in the movable groove. A fastening frame is connected to one side of the movable block. A fastening groove is opened on the outer side of the fastening rod. One end of the fastening frame passes through the fastening sleeve and is inserted into the fastening groove. The inner wall of the movable groove and the outer wall of the movable block are both designed with a chamfered structure.

[0006] The present invention is further configured such that a base is provided below the driving component, an adjustment component is detachably provided on the base, the driving component is rotatably mounted above the adjustment component, a clamping component is provided on one side of the adjustment component, and a cutting head is detachably provided at one end of the output head.

[0007] The present invention is further configured such that a plurality of movable springs are connected to one side of the movable block, and the other end of the movable springs is connected to the outer wall of the fastening sleeve.

[0008] The present invention is further configured such that a matching spring is movably sleeved on the outer side of the locking rod, and the two ends of the matching spring are respectively connected to the locking plate and the locking frame.

[0009] The present invention is further configured such that one end of the locking rod and the edge of the inner wall of the fixing groove are both designed with rounded corners.

[0010] The present invention is further configured such that a guide rail is fixedly provided on the outside of the fastening sleeve, the guide rail is aligned with the movable block, and the guide rail is located in the movable groove.

[0011] The present invention is further configured such that a support spring is movably sleeved on the outer side of the fastening sleeve, and one end of the support spring is connected to the locking sleeve.

[0012] The present invention is further configured such that a thrust bearing is detachably provided on one side of the positioning plate, and the other end of the support spring is connected to the thrust bearing.

[0013] Compared with the prior art, this utility model provides a metal hydraulic pipeline joint cutting and processing device, which has the following beneficial effects: 1. By coordinating multiple components such as the drive assembly, output head, fastening sleeve, fastening rod, rotating sleeve, rotating block, sliding sleeve, sliding block, and fastening frame, a tool-free and convenient disassembly and assembly system is constructed. This solves the technical problems of complex and cumbersome disassembly and assembly operations and strong tool dependence in the existing metal hydraulic pipeline joint cutting and machining devices when performing regular maintenance and replacement of the cutting head. When it is necessary to remove the cutting head, the operator first rotates the rotating sleeve forward, and at the same time, the rotating sleeve drives the rotating block to rotate forward, so that the return spring returns to its original position and pushes the sliding sleeve to gradually slide along the guide rail. The inner movable groove of the sliding sleeve gradually stops pressing against the outer movable block. The wall limit switch and the movable spring synchronously reset, pushing the movable block to move the fastening bracket outward. The fastening bracket slides out of the fastening groove, and then the fastening sleeve and fastening rod are pulled to remove it, thus removing the cutting head from the output head. This eliminates the limitations of traditional methods that rely on specialized tools such as special wrenches, socket wrenches, and Allen wrenches for complex disassembly and assembly operations. It also avoids the problem of not being able to disassemble and replace the cutting head in a timely manner when the special tool model does not meet the equipment configuration requirements, the tool is incomplete, or the tool is worn or damaged. The cutting head can be quickly disassembled and conveniently replaced through simple manual operation steps, improving the efficiency of equipment maintenance.

[0014] 2. Through the comprehensive coordination of multiple mechanical locking and structural stabilization measures, including the control of the locking frame and locking rod, the rounded corner fit between the fixing groove and the locking rod, the rotation control of the limiting plate and the limiting groove, the fixed connection between the locking sleeve and the vertical plate, and the support fit between the positioning plate and the thrust bearing, a multi-level impact-resistant and anti-loosening safety system is constructed. These multiple safety mechanisms enhance the overall structural stability and connection reliability of the system, improve its vibration resistance and resistance to external interference, and effectively resist the centrifugal force impact generated by high-speed rotation during the cutting and machining of metal hydraulic pipeline joints, the repeated impact of cutting resistance, the reaction force generated by workpiece material deformation, and the vibration impact generated by long-term equipment operation. This invention addresses the long-term adverse effects of various complex external factors and harsh working environments, resolving serious structural defects in existing improved metal hydraulic pipeline joint cutting and machining devices. These defects include a relatively simple and crude overall structural design, insufficient mechanical strength and connection stability, and poor vibration resistance and impact resistance. It avoids problems such as loose connections and locking failures in the original tool-free assembly and disassembly system, and even sudden serious failures such as sudden loosening of the fixing structure and accidental detachment of the cutting head. This ensures a reliable connection and stable fixation between the fastening sleeve and the fastening rod, maintaining stable cutting precision and product quality over the long term. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a metal hydraulic pipeline joint cutting and machining device according to the present invention; Figure 2 This is a schematic diagram of the dispersed structure of the drive assembly and the cutting head in this utility model; Figure 3 This is a schematic diagram of the dispersed structure of the limiting plate, thrust bearing, fastening sleeve, movable block, sliding sleeve, rotating sleeve and locking sleeve in this utility model; Figure 4 This is a cross-sectional structural diagram of the limiting plate, fastening rod, fastening sleeve, movable block, sliding sleeve, rotating sleeve and locking sleeve in this utility model; Figure 5 This is a schematic diagram of the dispersed structure of the sliding sleeve and the fixing frame in this utility model.

[0016] In the diagram: 1. Drive assembly; 2. Output head; 3. Fastening sleeve; 4. Fastening rod; 5. Rotating sleeve; 6. Rotating block; 7. Sliding sleeve; 8. Sliding block; 9. Limiting plate; 10. Limiting groove; 11. Return spring; 12. Locking sleeve; 13. Fixing groove; 14. Vertical plate; 15. Movable groove; 16. Positioning plate; 17. Locking frame; 18. Locking rod; 19. Locking plate; 20. Movable block; 21. Fastening frame; 22. Fastening groove; 23. Base; 24. Adjustment assembly; 25. Clamping assembly; 26. Cutting head; 27. Movable spring; 28. Matching spring; 29. ​​Guide rail; 30. Supporting spring; 31. Thrust bearing. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0019] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0020] Please see Figures 1-5A metal hydraulic pipeline joint cutting and processing device includes a drive assembly 1, an output head 2 connected to the output end of the drive assembly 1, a detachable fastening sleeve 3 on one side of the output head 2, a detachable fastening rod 4 on the inner side of the fastening sleeve 3, a rotating sleeve 5 rotatably mounted on the outer side of the fastening sleeve 3, a rotating block 6 fixedly mounted on one side of the rotating sleeve 5, a sliding sleeve 7 slidingly mounted on the outer side of the fastening sleeve 3, and a sliding block 8 fixedly mounted on the outer side of the sliding sleeve 7. Both the sliding block 8 and the rotating block 6 are of inclined structure design. A limiting plate 9 rotatably mounted on the outer side of the fastening sleeve 3, with a limiting groove 10 formed on the limiting plate 9. A return spring 11 movably mounted on the outer side of the fastening sleeve 3, with its two ends connected to the sliding sleeve 7 and the fastening sleeve 3 respectively. A locking sleeve 12 is mounted on the outer side of the fastening sleeve 3. Multiple fixing slots 13 are provided on the outer side of the 3. A vertical plate 14 is fixedly connected to one side of the locking sleeve 12. A movable slot 15 is provided on the inner side of the sliding sleeve 7. A positioning plate 16 is fixed on the vertical plate 14. There are three positioning plates 16. A locking frame 17 is fixedly provided on one side of the rotating sleeve 5. A locking rod 18 is slidably provided in the locking frame 17. A locking plate 19 is connected to one end of the locking rod 18. One end of the locking rod 18 is inserted into the fixing slot 13. A movable block 20 is movably provided in the movable slot 15. A fastening frame 21 is connected to one side of the movable block 20. A fastening slot 22 is provided on the outer side of the fastening rod 4. One end of the fastening frame 21 passes through the fastening sleeve 3 and is inserted into the fastening slot 22. The inner wall of the movable slot 15 and the outer wall of the movable block 20 are both designed with a chamfered structure.

[0021] A base 23 is provided below the drive assembly 1, and an adjustment assembly 24 is detachably provided on the base 23. The drive assembly 1 is rotatably mounted on the adjustment assembly 24. A clamping assembly 25 is provided on one side of the adjustment assembly 24, and a cutting head 26 is detachably provided at one end of the output head 2.

[0022] In this embodiment, when the cutting head 26 needs to be removed, the limiting plate 9 is first rotated forward. Then, the limiting plate 9 will drive the limiting groove 10 and the thrust bearing 31 on one side to rotate forward. When the limiting groove 10 rotates to the position corresponding to the positioning plate 16, the locking sleeve 12 is pushed, so that the locking sleeve 12 drives the vertical plate 14 and the positioning plate 16 connected on one side to gradually slide into the limiting groove 10. At the same time, the locking sleeve 12 and the thrust bearing 31 will cooperate to compress the support spring 30. When the support spring 30 is compressed to the limit, the positioning plate 16 closest to the locking sleeve 12 just passes through the limiting groove 10 and moves to... On the other side of the limiting plate 9, the limiting plate 9 is rotated in the opposite direction, causing the limiting plate 9 to drive the limiting groove 10 and the thrust bearing 31 on one side to rotate in the opposite direction, so that the limiting groove 10 rotates back to a position that does not correspond to the positioning plate 16. Then the rotation of the limiting plate 9 is stopped. At this time, the vertical plate 14 and the positioning plate 16 closest to the locking sleeve 12 cooperate to limit the locking sleeve 12 to one side of the limiting plate 9, so that the locking sleeve 12 no longer limits the outer wall of the locking plate 19. Then the rotating sleeve 5 is rotated in the forward direction. The rotating sleeve 5 will drive multiple locking frames 17 on one side to rotate in the forward direction. Then the locking frames 17 drive the locking plate 19 and lock. The rod 18 and the matching spring 28 rotate in the forward direction. Then, the inner wall of the fixing groove 13 presses against one end of the locking rod 18. Due to the rounded corner design at the edge of the inner wall of the fixing groove 13, one end of the locking rod 18 gradually slides out of the fixing groove 13, and the other end of the locking rod 18 drives the locking plate 19 to slide outward, causing the locking plate 19 to drive the matching spring 28 to stretch outward. At the same time, the rotating sleeve 5 drives the outer rotating block 6 to rotate in the forward direction. Due to the special structural design of the rotating block 6 and the sliding block 8, when the rotating block 6 rotates in the forward direction, the return spring 11 resets and pushes the sliding sleeve 7, causing the sliding sleeve 7 to... Slide along the guide rail 29 gradually, and the sliding sleeve 7 will drive the sliding block 8 to move, so that one side of the sliding block 8 is always in close contact with the rotating block 6. Then, the inner movable groove 15 of the sliding sleeve 7 gradually stops limiting the outer wall of the movable block 20. Then, multiple movable springs 27 simultaneously reset and push the movable block 20, so that the movable block 20 drives one side of the fastening frame 21 to move outward. Then, one end of the fastening frame 21 will gradually slide out of the fastening groove 22. Then, the fastening sleeve 3 is pulled to one side, and the fastening rod 4 is pulled to the opposite side to remove the fastening sleeve 3 and the fastening rod 4. Then the cutting head 26 can be removed from one end of the output head 2.

[0023] Please see Figures 3-5 As a further implementation of the overall equipment: a plurality of movable springs 27 are connected to one side of the movable block 20, and the other end of the movable spring 27 is connected to the outer wall of the fastening sleeve 3.

[0024] A matching spring 28 is movably sleeved on the outside of the locking rod 18, and the two ends of the matching spring 28 are connected to the locking plate 19 and the locking frame 17 respectively.

[0025] Both the locking rod 18 and the inner edge of the fixing groove 13 are designed with rounded corners.

[0026] A guide rail 29 is fixedly provided on the outside of the fastening sleeve 3. The guide rail 29 is aligned with the movable block 20 and is located in the movable groove 15.

[0027] A support spring 30 is movably sleeved on the outer side of the fastening sleeve 3, and one end of the support spring 30 is connected to the locking sleeve 12.

[0028] A thrust bearing 31 is detachably provided on one side of the positioning plate 16, and the other end of the support spring 30 is connected to the thrust bearing 31.

[0029] More specifically, when the cutting head 26 needs to be installed, first insert one end of the cutting head 26 into the inside of the output head 2, and align the pre-drilled mounting hole on the cutting head 26 with the pre-drilled mounting hole on the output head 2. Then, pass the fastening rod 4 through the pre-drilled mounting holes on the cutting head 26 and the output head 2 from one side. Next, fit the fastening sleeve 3 onto the outside of the fastening rod 4 from the other side. Then, rotate the rotating sleeve 5 in the opposite direction, so that the rotating sleeve 5 drives the locking rod 18, the locking plate 19, and the matching spring 28 to rotate in the opposite direction through the locking bracket 17 on one side. At the same time, the rotating sleeve 5 will drive the outer rotating block 6 to rotate in the opposite direction and reset. Then, the rotating block 6 pushes the sliding block 8 to one side, so that the sliding block 8 slides and resets. Then, the sliding block 8 drives the sliding... The sliding sleeve 7 slides and resets along the guide rail 29, and the sliding sleeve 7 also drives the inner movable groove 15 to slide and reset. Due to the chamfer design of one side of the inner wall of the movable groove 15 and one side of the outer wall of the movable block 20, the inner wall of the movable groove 15 gradually presses the movable block 20 inward, causing the movable block 20 to move inward and reset. The movable block 20 also squeezes the movable spring 27 on one side, causing the movable block 20 to drive the fastening bracket 21 on one side to gradually lock into the fastening groove 22. At the same time, the sliding sleeve 7 squeezes the reset spring 11. When the rotating sleeve 5 is fully reset, one end of the fastening bracket 21 is reinserted into the fastening groove 22, forming a locking relationship. At this time, the locking bracket 17 just drives the locking rod 18 and other components to rotate to correspond with the original fixed groove 13. The spring 28 then resets and pulls the locking plate 19, causing the locking plate 19 to slide the locking rod 18 on one side inward. One end of the locking rod 18 then re-inserts into the original fixing groove 13. The limiting plate 9 is then rotated forward again, causing the limiting groove 10 and the thrust bearing 31 on one side to rotate forward. When the limiting groove 10 rotates to the position corresponding to the positioning plate 16, the support spring 30 resets and pushes the locking sleeve 12 to slide back to its original position. Simultaneously, the locking sleeve 12 causes the vertical plate 14 on one side and the three positioning plates 16 to slide back to their original positions. After the support spring 30 is fully reset, the other two positioning plates 16 move back to the sides of the limiting plate 9, and then the limiting plate is rotated in the opposite direction again. 9. This causes the limiting plate 9 to drive the limiting groove 10 and the thrust bearing 31 on one side to rotate and reset in the opposite direction. The limiting groove 10 is then rotated and reset to a position that does not correspond to the vertical plate 14 and the positioning plate 16. The vertical plate 14, in conjunction with the two corresponding positioning plates 16, supports the locking sleeve 12 to one side of the limiting plate 9, preventing the locking sleeve 12 from sliding easily. The inner wall of the locking sleeve 12 then re-limits the outer wall of the locking plate 19, preventing the locking plate 19 and the locking rod 18 from sliding outward. The locking rod 18 and the fixing groove 13 then cooperate to form a rotation limit on the locking frame 17, preventing the rotating sleeve 5 from rotating accidentally. This achieves a convenient and stable connection, thereby enabling convenient and stable installation of the cutting head 26.

[0030] In summary, during the use or operation of the entire equipment: when it is necessary to remove the cutting head 26, first rotate the limiting plate 9 in the forward direction. Then, the limiting plate 9 will drive the limiting groove 10 and the thrust bearing 31 on one side to rotate in the forward direction. When the limiting groove 10 rotates to the position corresponding to the positioning plate 16, the locking sleeve 12 is pushed, causing the locking sleeve 12 to drive the vertical plate 14 and the positioning plate 16 connected on one side to gradually slide into the limiting groove 10. At the same time, the locking sleeve 12 will cooperate with the thrust bearing 31 to compress the support spring 30. When the support spring 30 is compressed to its limit, the positioning plate 16 closest to the locking sleeve 12 just passes through the limiting groove 10. The groove 10 moves to the other side of the limiting plate 9, and then the limiting plate 9 is rotated in the opposite direction, causing the limiting plate 9 to drive the limiting groove 10 and the thrust bearing 31 on one side to rotate in the opposite direction, so that the limiting groove 10 rotates back to a position that does not correspond to the positioning plate 16. Then the rotation of the limiting plate 9 stops. At this time, the vertical plate 14 and the positioning plate 16 closest to the locking sleeve 12 cooperate to limit the locking sleeve 12 to one side of the limiting plate 9, so that the locking sleeve 12 no longer limits the outer wall of the locking plate 19. Then the rotating sleeve 5 is rotated in the forward direction. The rotating sleeve 5 will drive multiple locking frames 17 on one side to rotate in the forward direction. Then the locking frames 17 drive the locking plate 19 to rotate in the forward direction. 9. The locking rod 18 and the matching spring 28 rotate clockwise. Then, the inner wall of the fixing groove 13 presses against one end of the locking rod 18. Due to the rounded corner design at the edge of the inner wall of the fixing groove 13, one end of the locking rod 18 gradually slides out of the fixing groove 13, and the other end of the locking rod 18 drives the locking plate 19 to slide outward, causing the locking plate 19 to pull the matching spring 28 outward. At the same time, the rotating sleeve 5 drives the outer rotating block 6 to rotate clockwise. Due to the special structural design of the rotating block 6 and the sliding block 8, when the rotating block 6 rotates clockwise, the return spring 11 resets and pushes the sliding sleeve 7, causing the sliding... The sleeve 7 gradually slides along the guide rail 29, and the sliding sleeve 7 will drive the sliding block 8 to move, so that one side of the sliding block 8 is always in close contact with the rotating block 6. Then, the inner movable groove 15 of the sliding sleeve 7 gradually stops limiting the outer wall of the movable block 20. Then, multiple movable springs 27 simultaneously reset and push the movable block 20, so that the movable block 20 drives one side of the fastening frame 21 to move outward. Then, one end of the fastening frame 21 will gradually slide out of the fastening groove 22. Then, the fastening sleeve 3 is pulled to one side, and the fastening rod 4 is pulled to the opposite side to remove the fastening sleeve 3 and the fastening rod 4. Then the cutting head 26 can be removed from one end of the output head 2.

[0031] When the cutting head 26 needs to be installed, first insert one end of the cutting head 26 into the inside of the output head 2, and align the pre-drilled mounting hole on the cutting head 26 with the pre-drilled mounting hole on the output head 2. Then, pass the fastening rod 4 through the pre-drilled mounting hole on the cutting head 26 and the output head 2 from one side. Next, fit the fastening sleeve 3 onto the outside of the fastening rod 4 from the other side. Then, rotate the rotating sleeve 5 in the opposite direction, so that the rotating sleeve 5 drives the locking rod 18, the locking plate 19, and the matching spring 28 to rotate in the opposite direction through the locking bracket 17 on one side. At the same time, the rotating sleeve 5 will drive the outer rotating block 6 to rotate in the opposite direction and reset. Then, the rotating block 6 pushes the sliding block 8 to one side, so that the sliding block 8 slides and resets. Then, the sliding block 8 drives the sliding sleeve 7 along... The guide rail 29 slides and resets, and the sliding sleeve 7 drives the inner movable groove 15 to slide and reset. Due to the chamfer design of one side of the inner wall of the movable groove 15 and one side of the outer wall of the movable block 20, the inner wall of the movable groove 15 gradually presses the movable block 20 inward, causing the movable block 20 to move inward and reset. The movable block 20 also squeezes the movable spring 27 on one side, causing the movable block 20 to drive the fastening bracket 21 on one side to gradually lock into the fastening groove 22. At the same time, the sliding sleeve 7 squeezes the reset spring 11. When the rotating sleeve 5 is fully reset, one end of the fastening bracket 21 is reinserted into the fastening groove 22, forming a locking relationship. At this time, the locking bracket 17 just drives the locking rod 18 and other components to rotate to the position corresponding to the original fixed groove 13. The spring 28 is then reset and pulls the locking plate 19, causing the locking plate 19 to slide the locking rod 18 on one side inward. One end of the locking rod 18 will then re-insert into the original fixing groove 13. Then, the limiting plate 9 is rotated forward again, causing the limiting groove 10 and the thrust bearing 31 on one side to rotate forward again. When the limiting groove 10 rotates to the position corresponding to the positioning plate 16, the support spring 30 resets and pushes the locking sleeve 12 to slide back to its original position. At the same time, the locking sleeve 12 causes the vertical plate 14 on one side and the three positioning plates 16 to slide back to their original positions. When the support spring 30 is fully reset, the other two positioning plates 16 move back to the sides of the limiting plate 9 respectively. Then, the limiting plate 9 is rotated in the opposite direction again. This causes the limiting plate 9 to rotate and reset the limiting groove 10 and the thrust bearing 31 on one side in the opposite direction. The limiting groove 10 is then rotated and reset to a position that does not correspond to the vertical plate 14 and the positioning plate 16. The vertical plate 14, in conjunction with the two corresponding positioning plates 16, supports the locking sleeve 12 to one side of the limiting plate 9, preventing the locking sleeve 12 from sliding easily. The inner wall of the locking sleeve 12 then re-limits the outer wall of the locking plate 19, preventing the locking plate 19 and the locking rod 18 from sliding outward. The locking rod 18 and the fixing groove 13 then cooperate to limit the rotation of the locking frame 17, preventing the rotating sleeve 5 from rotating accidentally. This achieves a convenient and stable connection, thereby enabling convenient and stable installation of the cutting head 26.

[0032] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A metal hydraulic line fitting cutting device comprising a drive assembly (1), characterized in that: The output end of the drive assembly (1) is connected to an output head (2). A fastening sleeve (3) is provided on one side of the output head (2). A fastening rod (4) is provided inside the fastening sleeve (3). A rotating sleeve (5) is provided on the outer side of the fastening sleeve (3). A rotating block (6) is provided on one side of the rotating sleeve (5). A sliding sleeve (7) is provided on the outer side of the fastening sleeve (3). A sliding block (8) is provided on the outer side of the sliding sleeve (7). A limiting plate (9) is provided on the outer side of the fastening sleeve (3). A limiting groove (10) is provided on the limiting plate (9). A return spring (11) is provided on the outer side of the fastening sleeve (3). A locking sleeve (12) is provided. Multiple fixing grooves (13) are provided on the outer side of the fastening sleeve (3). A vertical plate (14) is provided on one side of the locking sleeve (12). A movable groove (15) is provided on the inner side of the sliding sleeve (7). A positioning plate (16) is provided on the vertical plate (14). A locking frame (17) is provided on one side of the rotating sleeve (5). A locking rod (18) is slidably provided in the locking frame (17). A locking plate (19) is provided at one end of the locking rod (18). A movable block (20) is movably provided in the movable groove (15). A fastening frame (21) is provided on one side of the movable block (20). A fastening groove (22) is provided on the outer side of the fastening rod (4).

2. A hydraulic tube fitting cutting device according to claim 1, wherein: The drive assembly (1) is provided with a base (23) below it. An adjustment assembly (24) is detachably provided on the base (23). The drive assembly (1) is rotatably mounted on the adjustment assembly (24). A clamping assembly (25) is provided on one side of the adjustment assembly (24). A cutting head (26) is detachably provided at one end of the output head (2).

3. A device for cutting a hydraulic line fitting into a metal pipe according to any one of claims 1 or 2, characterized in that: The movable block (20) is connected to a plurality of movable springs (27) on one side, and the other end of the movable springs (27) is connected to the outer wall of the fastening sleeve (3).

4. A hydraulic tube fitting cutting device according to claim 1, wherein: The locking rod (18) is movably fitted with a matching spring (28), and the two ends of the matching spring (28) are respectively connected to the locking plate (19) and the locking frame (17).

5. A hydraulic tube fitting cutting device as defined in claim 4 wherein: Both the locking rod (18) and the inner edge of the fixing groove (13) are designed with rounded corners.

6. A hydraulic tube fitting cutting device according to claim 3, wherein: The fastening sleeve (3) is fixedly provided with a guide rail (29) on the outside. The guide rail (29) is aligned with the movable block (20) and the guide rail (29) is in the movable groove (15).

7. A hydraulic tube fitting cutting device as defined in claim 5 wherein: The fastening sleeve (3) is movably fitted with a support spring (30), one end of which is connected to the locking sleeve (12).

8. A hydraulic tube fitting cutting device according to claim 7, wherein: The positioning plate (16) is detachably provided with a thrust bearing (31) on one side, and the other end of the support spring (30) is connected to the thrust bearing (31).

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