A processing device and a processing method for a special-shaped pipe fitting of a fitness equipment

Abstract

The present application relates to the technical field of fitness equipment processing equipment, and particularly relates to a processing equipment and a processing method for a special-shaped pipe fitting of a fitness equipment, which comprises a machine body, a pipe fitting feeding mechanism fixedly connected to the top end of the machine body, a base clamping assembly, a cutting assembly and a polishing assembly; the base clamping assembly comprises a sliding seat, a clamping fixed seat and a clamping sliding seat, the clamping fixed seat is fixedly arranged on the sliding seat, the clamping sliding seat is slidingly arranged on the sliding seat, and a pipe fitting is arranged between the clamping fixed seat and the clamping sliding seat; the cutting assembly comprises a lifting plate, a cutting knife and a wedge-shaped extrusion piece; the linkage mechanism between the lifting plate and the sliding seat is used to move the sliding seat below the cutting knife when the lifting plate is lowered, and the wedge-shaped extrusion piece is used to drive the clamping pipe fitting; when the lifting plate is raised, the sliding seat with the pipe fitting is moved below the polishing wheel; the pipe fitting does not need to be transported to the polishing station after cutting, manual or mechanical hand intervention and re-clamping are omitted, the processing efficiency is significantly improved; the clamping is prevented from being loosened during polishing, the force is prevented from being deviated, the port quality is stable, and the assembly precision is stable.

Description

Technical Field

[0001] This invention relates to the field of fitness equipment processing technology, and in particular to a processing equipment and method for irregularly shaped tubular parts for fitness equipment. Background Technology

[0002] Currently, irregularly shaped tubes in fitness equipment typically require length cutting and end deburring and polishing after forming. Existing processing methods often involve separate cutting and polishing equipment. After the tubes are cut by the cutting equipment, they are transported to the polishing station manually or by a separate transfer mechanism. After being re-clamped and positioned by a fixture, the ends are processed by the polishing wheel. Although some tube processing machines integrate clamping and polishing functions, the cutting, clamping, transporting, and polishing actions are mostly driven and controlled by independent actuators.

[0003] In the split-type processing method, after the pipe is cut, it needs to be transferred from the cutting station to the grinding station. During the transfer, the pipe is prone to displacement or deflection. When it is re-clamped at the grinding station, the positioning reference changes, making it difficult to guarantee the coaxiality of the cut grinding. This affects the assembly accuracy and port quality of the fitness equipment pipe. Manual or robotic intervention is required for transfer between cutting and grinding. It is not possible to grind the pipe immediately after cutting, resulting in low processing efficiency. Although the pipe is clamped during cutting, the clamp is released immediately after cutting. During the transfer and re-clamping grinding process, there is a lack of reliable and consistent positioning constraints. When grinding the cut burrs, the pipe is prone to displacement due to force, affecting the grinding effect. Summary of the Invention

[0004] In view of the above problems, the present invention is proposed.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a processing equipment for irregularly shaped tubes of fitness equipment, comprising a machine body, a tube feeding mechanism fixedly connected to the top of the machine body, and a base clamping assembly, a cutting assembly, and a grinding assembly; the base clamping assembly comprises a sliding seat, a clamping fixed seat, and a clamping sliding seat, the clamping fixed seat being fixedly disposed on the sliding seat, the clamping sliding seat being slidably disposed on the sliding seat, and the tube passing through the two; The cutting assembly includes a lifting plate, a cutting blade, and a wedge-shaped extruder; the grinding assembly includes a lifting seat and a grinding wheel; a linkage mechanism is provided between the lifting plate and the sliding seat. When the lifting plate descends, the linkage mechanism drives the sliding seat to move below the cutting blade, and the wedge-shaped extruder presses down to clamp the sliding seat and the clamping fixed seat to clamp the pipe. When the lifting plate rises, it drives the sliding seat to move below the grinding wheel. The sliding seat is equipped with a limiting component, which is used to establish a lock when the wedge-shaped extruder presses and clamps the sliding seat, and to maintain clamping after release; the grinding component is equipped with a wedge-shaped release rod, which works with the limiting component to release the lock on the clamping sliding seat when the grinding wheel grinds the cut of the pipe fitting.

[0006] As a preferred embodiment of the processing equipment for irregularly shaped tubular parts of fitness equipment according to the present invention, the linkage mechanism includes a fixed plate, a rotating shaft, a torsion spring, a rotating plate, and a fixed wheel; the fixed plate is fixedly connected to the top of the machine body, the rotating shaft is rotatably mounted on the fixed plate, the torsion spring is sleeved on the rotating shaft, and the rotating plate is sleeved on the rotating shaft and is L-shaped; a straight groove is opened at the longer end of the rotating plate, and the fixed wheel is fixedly connected to both sides of the sliding seat and slides in cooperation with the straight groove; when the lifting plate is raised and lowered, the sliding seat is driven by the linkage mechanism to reciprocate horizontally between the cutting blade and the grinding wheel.

[0007] As a preferred embodiment of the processing equipment for irregularly shaped tubular parts of fitness equipment according to the present invention, the cutting assembly further includes a fixed cylinder, a sliding rod, and a first spring; the fixed cylinder is fixedly disposed at the rear end of the lifting plate, the sliding rod is slidably sleeved on the inner wall of the fixed cylinder, and the first spring is disposed inside the fixed cylinder with its two ends respectively abutting the top end of the inner wall of the fixed cylinder and the top end of the sliding rod; when the lifting plate descends, the sliding rod contacts the shorter end of the rotating plate and pushes the rotating plate to rotate around the rotating axis, thereby driving the sliding seat to move laterally through the straight groove and the fixed wheel.

[0008] As a preferred embodiment of the processing equipment for irregularly shaped tubular parts of fitness equipment according to the present invention, the machine body is fixedly connected to a bracket at the top, and a drive cylinder is fixedly connected to the top of the bracket. The output end of the drive cylinder is fixedly connected to the top of the lifting plate to drive the lifting plate to rise and fall. The cutting assembly also includes a guide column and a compression spring. The guide column is fixedly connected to the top of the machine body and slidably sleeved with the inner wall of the lifting plate. The compression spring is sleeved on the circumferential surface of the guide column and its two ends abut against the top of the machine body and the bottom of the lifting plate, respectively, to guide the lifting plate to rise and fall and provide a reset buffer.

[0009] As a preferred embodiment of the processing equipment for irregularly shaped tubular parts of fitness equipment according to the present invention, the grinding assembly further includes a first rack, a connecting gear, a second rack, a guide rod, and a transmission belt; the first rack is fixedly connected to the front end of the lifting plate, the connecting gear is rotatably disposed on the inner wall of the machine body and meshes with the first rack, the second rack meshes with the connecting gear and its top end is fixedly connected to the bottom end of the lifting seat, the guide rod is fixedly connected to the front end of the lifting seat and slidably connected to the top end of the machine body; the lifting seat is provided with a drive motor, and the output end of the drive motor drives the grinding wheel to rotate via the transmission belt.

[0010] As a preferred embodiment of the processing equipment for irregularly shaped tubular parts of fitness equipment according to the present invention, the limiting component includes a fixing member, a first cylinder, a second spring, a fixing sleeve, and a second cylinder; the fixing member is fixedly connected to the top of the sliding seat, the first cylinder is fixedly connected to the side of the clamping sliding seat away from the clamping fixing seat and is slidably connected to the fixing member, the second spring is sleeved on the circumferential surface of the first cylinder and its two ends respectively abut against the fixing member and the clamping sliding seat; the fixing sleeve is fixedly connected to the first cylinder, and the second cylinder is slidably sleeved inside the fixing sleeve.

[0011] As a preferred embodiment of the processing equipment for irregularly shaped tubular parts of fitness equipment according to the present invention, the limiting component further includes a wedge block, a third spring, a semicircular block, and a lifting wedge rod; the wedge block is fixedly connected to the end of the second cylinder away from the fixing member, the third spring is sleeved on the circumferential surface of the second cylinder and its two ends respectively abut against the fixing sleeve and the second cylinder; the semicircular block is fixedly connected to the end of the second cylinder near the fixing member, and the lifting wedge rod is slidably connected to the inner wall of the fixing member. When the wedge extruder pushes and clamps the sliding seat, the semicircular block passes over and triggers the lifting wedge rod to lock the clamping sliding seat.

[0012] As a preferred embodiment of the processing equipment for irregularly shaped tubular parts of fitness equipment according to the present invention, the limiting component further includes a sliding block, a fourth spring, and a fifth spring; the sliding block is slidably sleeved on the second cylinder and has an inclined surface at one end near the wedge block; the fourth spring is sleeved on the second cylinder and its two ends abut against the sliding block and the semicircular block respectively; the fifth spring is sleeved on the lifting wedge rod and its two ends abut against the fixing member and the lifting wedge rod respectively; after the semicircular block passes over the lifting wedge rod, the fifth spring pushes the lifting wedge rod to reset and position it on the retraction path of the semicircular block to prevent the semicircular block from retracting, thereby keeping the clamping sliding seat locked; There are two pipe feeding mechanisms, which are respectively located near the front and rear ends of the machine body. The gaps between the two pipe feeding mechanisms and the clamping and sliding seats, the cutting blades, and the grinding wheels are on the same axis.

[0013] As a preferred embodiment of the processing equipment for irregularly shaped tubular parts of fitness equipment according to the present invention, the wedge-shaped release rod is fixedly connected to one end of the lifting seat near the grinding wheel, and the bottom end of the wedge-shaped release rod slides in contact with the top end of the wedge block; when the wedge-shaped release rod descends to the grinding position with the lifting seat, it pushes the wedge block and compresses the third spring, the second cylinder drives the sliding block to move, and the inclined surface of the sliding block pushes the lifting wedge rod up and compresses the fifth spring.

[0014] This invention also provides a method for processing irregularly shaped tubular components for fitness equipment. The method utilizes the aforementioned processing equipment for irregularly shaped tubular components for fitness equipment and includes the following steps: Insert the pipe fitting from the rear end of the machine body, and it is conveyed to the position to be cut by the pipe fitting feeding mechanism. The pipe fitting passes through the clamping and fixing seat and the clamping sliding seat. The drive cylinder drives the lifting plate to descend, and the linkage mechanism drives the sliding seat to move below the cutting blade. The wedge-shaped extruder presses down to clamp the sliding seat and the clamping fixed seat to clamp the pipe. The limiting component establishes a lock when the wedge-shaped extruder is pushed and maintains clamping after disengagement; the lifting plate continues to descend, and the cutting blade cuts the tube to a fixed length. The lifting plate rises, and the sliding seat moves to below the grinding wheel via the linkage mechanism; the limit component remains locked, and the pipe is clamped and does not shift throughout the entire transportation process. The lifting plate rises and, via the first rack, connecting gear, and second rack, drives the lifting seat to descend, causing the grinding wheel to rotate and insert into the pipe fitting cut. The grinding wheel deburrs the cut edges of the pipe fittings; When the lifting seat descends, the wedge-shaped release rod, in conjunction with the limit assembly, releases the lock, the clamping sliding seat resets, and the pipe fitting is released. The lifting plate descends, disengaging the grinding wheel. The pipe feeding mechanism outputs the finished product and feeds in the next pipe, enabling continuous processing.

[0015] The beneficial effects of this invention are: The linkage mechanism between the lifting plate and the sliding seat allows the sliding seat to move below the cutting blade when the lifting plate descends, and the wedge-shaped extruder drives the clamping of the pipe. When the lifting plate rises, the sliding seat moves the pipe to below the grinding wheel. After cutting, there is no need to transfer the pipe to the grinding station, eliminating the need for manual or robotic intervention and re-clamping, thus significantly improving processing efficiency. The limiting component locks when the wedge-shaped extruder pushes and retains clamping after release, ensuring that the pipe is reliably clamped without displacement or deflection throughout the transfer and grinding process. The positioning reference is consistent, ensuring the coaxiality of the cut and grinding. The wedge-shaped release rod on the grinding component releases the lock in conjunction with the limiting component during grinding, releasing the pipe only after grinding is completed, avoiding force shifting due to loose clamping during grinding, and ensuring stable port quality and assembly accuracy. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the device of the present invention.

[0018] Figure 3 This is a schematic diagram of the installation structure of the cutting component of the present invention.

[0019] Figure 4 This is a schematic diagram of the rotating plate mounting structure of the present invention.

[0020] Figure 5 This is a schematic diagram of the grinding component structure of the present invention.

[0021] Figure 6 This is a schematic diagram of the installation structure of the base clamping assembly of the present invention.

[0022] Figure 7 This is a schematic diagram of the installation structure of the limiting component of the present invention.

[0023] Figure 8 This is a schematic diagram of the cross-sectional structure of the body of the present invention.

[0024] Explanation of reference numerals in the attached drawings: 1. Machine body; 2. Support frame; 3. Pipe feeding mechanism; 4. Base clamping assembly; 5. Cutting assembly; 6. Grinding assembly; 7. Lifting plate; 8. Drive cylinder; 9. Cutting blade; 10. Wedge-shaped extruder; 11. Guide column; 12. Compression spring; 13. Fixed cylinder; 14. Sliding rod; 15. First spring; 16. Fixed plate; 17. Rotating shaft; 18. Torsion spring; 19. Rotating plate; 20. Straight groove; 21. First rack; 22. Lifting seat; 23. Guide rod; 2 4. Second rack; 25. Transmission belt; 26. Grinding wheel; 27. Connecting gear; 28. Sliding seat; 29. ​​Fixed wheel; 30. Wedge release rod; 31. Clamping fixed seat; 32. Clamping sliding seat; 33. Limiting assembly; 34. Fixing component; 35. First cylinder; 36. Second spring; 37. Fixed sleeve; 38. Second cylinder; 39. Wedge block; 40. Third spring; 41. Semicircular block; 42. Lifting wedge rod; 43. Sliding block; 44. Fourth spring; 45. Fifth spring. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Example 1

[0026] Reference Figures 1-8 The first embodiment of the present invention provides a processing device for irregularly shaped tubes of fitness equipment, including a body 1, a tube feeding mechanism 3 fixedly connected to the top of the body 1, and a base clamping assembly 4, a cutting assembly 5 and a grinding assembly 6; the base clamping assembly 4 includes a sliding seat 28, a clamping fixed seat 31 and a clamping sliding seat 32, the clamping fixed seat 31 is fixedly disposed on the sliding seat 28, the clamping sliding seat 32 is slidably disposed on the sliding seat 28, and the tube is inserted between the two; The cutting assembly 5 includes a lifting plate 7, a cutting blade 9, and a wedge-shaped extruder 10; the grinding assembly 6 includes a lifting seat 22 and a grinding wheel 26; a linkage mechanism is provided between the lifting plate 7 and the sliding seat 28. When the lifting plate 7 descends, the linkage mechanism drives the sliding seat 28 to move below the cutting blade 9, and the wedge-shaped extruder 10 presses down to clamp the sliding seat 32 and the clamping fixing seat 31 to clamp the pipe. When the lifting plate 7 rises, it drives the sliding seat 28 to move below the grinding wheel 26. The sliding seat 28 is provided with a limiting component 33, which is used to establish a lock when the wedge-shaped extruder 10 presses and clamps the sliding seat 32, and to maintain clamping after release; the grinding component 6 is provided with a wedge-shaped release rod 30, which cooperates with the limiting component 33 to release the lock on the clamping sliding seat 32 when the grinding wheel 26 grinds the cut of the pipe fitting.

[0027] The linkage mechanism includes a fixed plate 16, a rotating shaft 17, a torsion spring 18, a rotating plate 19, and a fixed wheel 29. The fixed plate 16 is fixedly connected to the top of the machine body 1. The rotating shaft 17 is rotatably mounted on the fixed plate 16. The torsion spring 18 is sleeved on the rotating shaft 17. The rotating plate 19 is sleeved on the rotating shaft 17 and is L-shaped. A straight groove 20 is opened at the longer end of the rotating plate 19. The fixed wheel 29 is fixedly connected to both sides of the sliding seat 28 and slides with the straight groove 20. When the lifting plate 7 is raised and lowered, the linkage mechanism drives the sliding seat 28 to reciprocate horizontally between the cutting blade 9 and the grinding wheel 26.

[0028] The cutting assembly 5 also includes a fixed cylinder 13, a sliding rod 14, and a first spring 15. The fixed cylinder 13 is fixed to the rear end of the lifting plate 7. The sliding rod 14 is slidably sleeved on the inner wall of the fixed cylinder 13. The first spring 15 is located inside the fixed cylinder 13 and its two ends abut against the top end of the inner wall of the fixed cylinder 13 and the top end of the sliding rod 14, respectively. When the lifting plate 7 descends, the sliding rod 14 contacts the shorter end of the rotating plate 19 and pushes the rotating plate 19 to rotate around the rotating shaft 17, thereby driving the sliding seat 28 to move laterally through the straight slot 20 and the fixed wheel 29.

[0029] A bracket 2 is fixedly connected to the top of the machine body 1, and a drive cylinder 8 is fixedly connected to the top of the bracket 2. The output end of the drive cylinder 8 is fixedly connected to the top of the lifting plate 7 to drive the lifting plate 7 to rise and fall. The cutting assembly 5 also includes a guide post 11 and a compression spring 12. The guide post 11 is fixedly connected to the top of the machine body 1 and slides in contact with the inner wall of the lifting plate 7. The compression spring 12 is sleeved on the circumferential surface of the guide post 11 and its two ends abut against the top of the machine body 1 and the bottom of the lifting plate 7, respectively, to guide the lifting plate 7 to rise and fall and provide a reset buffer.

[0030] The limiting component 33 includes a fixing member 34, a first cylinder 35, a second spring 36, a fixing sleeve 37, and a second cylinder 38. The fixing member 34 is fixedly connected to the top of the sliding seat 28. The first cylinder 35 is fixedly connected to the side of the clamping sliding seat 32 away from the clamping fixing seat 31 and is slidably connected to the fixing member 34. The second spring 36 is sleeved on the circumferential surface of the first cylinder 35 and its two ends abut against the fixing member 34 and the clamping sliding seat 32, respectively. The fixing sleeve 37 is fixedly connected to the first cylinder 35, and the second cylinder 38 is slidably sleeved inside the fixing sleeve 37.

[0031] The limiting component 33 also includes a wedge block 39, a third spring 40, a semicircular block 41, and a lifting wedge rod 42; the wedge block 39 is fixedly connected to one end of the second cylinder 38 away from the fixing member 34, the third spring 40 is sleeved on the circumferential surface of the second cylinder 38 and its two ends abut against the fixing sleeve 37 and the second cylinder 38 respectively; the semicircular block 41 is fixedly connected to one end of the second cylinder 38 near the fixing member 34, and the lifting wedge rod 42 is slidably connected to the inner wall of the fixing member 34. When the wedge extruder 10 pushes the clamping sliding seat 32, the semicircular block 41 passes over and triggers the lifting wedge rod 42 to lock the clamping sliding seat 32; there are two pipe feeding mechanisms 3, which are respectively located near the front and rear ends of the machine body 1. The gaps between the two pipe feeding mechanisms 3 and the clamping fixing seat 31 and the clamping sliding seat 32, the cutting blade 9, and the grinding wheel 26 are on the same axis.

[0032] The limiting assembly 33 also includes a sliding block 43, a fourth spring 44, and a fifth spring 45. The sliding block 43 is slidably sleeved on the second cylinder 38 and has an inclined surface at one end near the wedge block 39. The fourth spring 44 is sleeved on the second cylinder 38 and its two ends abut against the sliding block 43 and the semicircular block 41, respectively. The fifth spring 45 is sleeved on the lifting wedge rod 42 and its two ends abut against the fixing member 34 and the lifting wedge rod 42, respectively. After the semicircular block 41 passes over the lifting wedge rod 42, the fifth spring 45 pushes the lifting wedge rod 42 to reset and position it on the retraction path of the semicircular block 41 to prevent the semicircular block 41 from retracting, thereby keeping the clamping sliding seat 32 locked.

[0033] The irregularly shaped tube of the fitness equipment to be processed is inserted from the rear end of the machine body 1. There are two tube feeding mechanisms 3, which are located near the front and rear ends of the machine body 1 respectively. Each tube feeding mechanism 3 adopts a clamping roller structure of "active clamping roller + driven pressing roller": the roller surface of the active roller is processed with a contour groove according to the cross-sectional contour of the irregularly shaped tube, and is driven to rotate by the drive motor through the reducer and synchronous belt. After the tube is pressed by the two rollers, the active roller rotates and drives the tube forward along the axial direction of the machine body 1 by friction. The two tube feeding mechanisms 3 move synchronously and support the two ends of the tube respectively, so that the tube remains stable during the conveying process. The axis coincides with the gap between the clamping fixed seat 31 and the clamping sliding seat 32, the processing axis of the cutting blade 9 and the grinding wheel 26. The tube passes through the gap between the clamping fixed seat 31 and the clamping sliding seat 32 in sequence. When its front end reaches the preset fixed length stop, it stops, completes the axial positioning, and enters the position to be cut.

[0034] The drive cylinder 8 is activated, and its output end pushes the lifting plate 7 to descend vertically along the guide column 11. The guide column 11 provides linear guidance for the lifting plate 7. The compression spring 12, which is sleeved on the circumferential surface of the guide column 11, is compressed during the descent, absorbing the impact at the end and providing a reset preload for the return stroke. At the same time, the fixed cylinder 13 fixed at the rear end of the lifting plate 7 and the sliding rod 14 slidably sleeved in it descend synchronously with the lifting plate 7. Since the first spring 15 has a large stiffness, before the rotating plate 19 is pushed to its limit, the sliding rod 14 and the fixed cylinder 13 always move as a whole, and the first spring 15 is not compressed during this stage.

[0035] When the sliding rod 14 descends to its bottom end and contacts the shorter end of the rotating plate 19, it continues to press down and push the rotating plate 19 to rotate around the rotating shaft 17. The torsion spring 18 sleeved on the rotating shaft 17 stores energy accordingly. The rotating plate 19 is L-shaped, and the straight slot 20 opened at its longer end slides and engages with the fixed wheels 29 fixed on both sides of the sliding seat 28. The rotational motion of the rotating plate 19 is converted into the horizontal lateral movement of the fixed wheels 29 and the sliding seat 28 along the top of the machine body 1 through the straight slot 20. This causes the clamping fixed seat 31 and the clamping sliding seat 32 to move from the preparation position behind the cutting blade 9 to directly below the cutting blade 9. The lateral movement distance is determined by the geometric phase of the mechanism to ensure accurate stopping each time without cumulative error.

[0036] As the lifting plate 7 continues to descend, the wedge-shaped extrusion member 10 on it contacts the clamping sliding seat 32 with its wedge-shaped surface, converting the vertically downward component of force into a horizontal component of force that pushes the clamping sliding seat 32 toward the clamping fixed seat 31. The two come together to clamp the pipe fitting. The wedge-shaped surface helix angle is designed to be less than the material friction angle, giving the clamping a mechanical self-locking tendency. When the clamping sliding seat 32 moves, the first cylinder 35 fixed on the side away from the clamping fixed seat 31 slides along the inner wall of the fixing member 34, and the second spring 36 is compressed to store energy. The first cylinder 35 drives the fixing sleeve 37 and the second cylinder 38 slidably sleeved inside it to move axially synchronously. The semi-circular block 41 fixed at the end of the second cylinder 38 moves toward the fixing member. The 34 slides to one side and passes over the lifting wedge rod 42 that is slidably set on the inner wall of the fixed member 34; after passing over, the fifth spring 45 pushes the lifting wedge rod 42 to reset and its wedge-shaped surface engages with the retraction path of the semi-circular block 41, forming a ratchet mechanical lock. The limiting component 33 locks the clamping sliding seat 32 in the clamping position; thereafter, even if the wedge extruder 10 rises and disengages with the lifting plate 7, the clamping sliding seat 32 is still locked and clamped and will not spring back. At the same time as the lock is established, the wedge extruder 10 continues to descend, causing the first spring 15 to be compressed. The lifting plate 7 continues to descend through the relative sliding between the fixed cylinder 13 and the sliding rod 14, and finally the cutting blade 9 cuts the pipe to a fixed length.

[0037] After cutting, the drive cylinder 8 drives the lifting plate 7 to rise, and the cutting blade 9 and the wedge-shaped extruder 10 move upward synchronously to disengage from the pipe. The sliding rod 14 rises with the lifting plate 7 to release the pressure on the rotating plate 19. The torsion spring 18 releases its stored energy to drive the rotating plate 19 to rotate in the opposite direction and reset. It then drives the sliding seat 28 to move laterally to below the grinding wheel 26 through the straight groove 20 and the fixed wheel 29. Since the limiting component 33 has locked the clamping sliding seat 32, the pipe is always clamped by the clamping fixed seat 31 and the clamping sliding seat 32 throughout the entire lateral movement and transportation process, and there will be no displacement or deviation. This achieves "clamping and transportation immediately after cutting", which ensures the coaxiality and port quality of subsequent grinding. Example 2

[0038] Reference Figures 1-8 In a second embodiment of the present invention, the grinding assembly 6 further includes a first rack 21, a connecting gear 27, a second rack 24, a guide rod 23, and a transmission belt 25; the first rack 21 is fixedly connected to the front end of the lifting plate 7, the connecting gear 27 is rotatably disposed on the inner wall of the machine body 1 and meshes with the first rack 21, the second rack 24 meshes with the connecting gear 27 and its top end is fixedly connected to the bottom end of the lifting seat 22, the guide rod 23 is fixedly connected to the front end of the lifting seat 22 and slidably connected to the top end of the machine body 1; the lifting seat 22 is provided with a drive motor, and the output end of the drive motor drives the grinding wheel 26 to rotate via the transmission belt 25.

[0039] The wedge-shaped release rod 30 is fixedly connected to one end of the lifting seat 22 near the grinding wheel 26. The bottom end of the wedge-shaped release rod 30 slides in contact with the top end of the wedge block 39. When the wedge-shaped release rod 30 descends to the grinding position with the lifting seat 22, it pushes the wedge block 39 and compresses the third spring 40. The second cylinder 38 drives the sliding block 43 to move. The inclined surface of the sliding block 43 pushes the lifting wedge rod 42 up and compresses the fifth spring 45.

[0040] Based on the transportation completed in Example 1, when the lifting plate 7 rises, it drives the first rack 21 fixed at its front end to rise synchronously. The first rack 21 meshes with the connecting gear 27 rotatably mounted on the inner wall of the machine body 1, driving the connecting gear 27 to rotate. The connecting gear 27 then meshes with the second rack 24, converting the rotational motion into the descent of the second rack 24, thereby driving the lifting seat 22 to descend vertically along the guide rod 23. The drive motor on the lifting seat 22 drives the grinding wheel 26 to rotate at high speed via the transmission belt 25. The grinding wheel 26 descends with the lifting seat 22 and presses against the pipe cutting position, rotating to deburr and grind the pipe section cutting that has been transported, eliminating the burrs and flanging caused by cutting, and meeting the safety contact and assembly requirements of the fitness equipment pipe ports.

[0041] During the descent of the lifting seat 22, the wedge-shaped release lever 30 fixed near the grinding wheel 26 descends synchronously. Its bottom end slides into contact with the top of the wedge block 39 fixed at the end of the second cylinder 38, pushing the wedge block 39 towards the fixing member 34 and compressing the third spring 40. The second cylinder 38 thus drives the sliding block 43 slidably sleeved on it to move in the same direction. The circumferential surface of the second cylinder 38 is fixed with a protrusion to limit the stroke of the sliding block 43 near the wedge block 39. The end of the sliding block 43 with an inclined surface is connected to the lifting wedge. After the rod 42 contacts, it is pushed upward and the fifth spring 45 is compressed. After the lifting wedge rod 42 is pushed away from its locking position, the second spring 36 releases its stored energy, pushing the first cylinder 35 and the clamping sliding seat 32 to reset. The semicircular block 41 then disengages from the limit of the lifting wedge rod 42. At this time, the clamping sliding seat 32 moves away from the clamping fixed seat 31, releasing the clamp on the pipe. This unlocking action is strictly synchronized with the grinding descent to ensure "release as soon as grinding is in place". The timing is locked by the geometric phase of the mechanism, without the need for any sensor or controller.

[0042] After grinding, the drive cylinder 8 lowers the lifting plate 7 again, causing the first rack 21 to move downwards, which in turn causes the connecting gear 27 and the second rack 24 to move in the opposite direction. The lifting seat 22 and the grinding wheel 26 move upwards and disengage from the pipe cut. The wedge release rod 30 disengages from the wedge block 39 as the lifting seat 22 rises. Then, the third spring 40 and the fifth spring 45 reset, and the limiting component 33 returns to its initial unlocked state. The clamping sliding seat 32 remains in its initial open position away from the clamping fixed seat 31 under the action of the second spring 36. Next, the lifting plate 7 rises and resets, and the pipe feeding mechanism 3 transports the processed pipe with deburred ends forward to the unloading station. At the same time, the next pipe to be processed is inserted and positioned by the rear pipe feeding mechanism 3, ready to enter the next processing cycle. Throughout the entire processing, the pipe is reliably clamped during the cutting and handling stage, precisely deburred during the grinding stage, and automatically released from clamping and output by the feeding mechanism after grinding, without manual intervention. Processing continuity and batch consistency are guaranteed.

[0043] A method for processing irregularly shaped tubular components for fitness equipment, using the above-mentioned processing equipment for irregularly shaped tubular components for fitness equipment, includes the following steps: Insert the pipe fitting from the rear end of the machine body 1, and transport it to the position to be cut via the pipe fitting feeding mechanism 3. The pipe fitting passes through the clamping and fixing seat 31 and the clamping sliding seat 32. The drive cylinder 8 drives the lifting plate 7 to descend, and the linkage mechanism drives the sliding seat 28 to move below the cutting blade 9. The wedge-shaped extruder 10 presses down to clamp the sliding seat 32 and the clamping fixed seat 31 to clamp the pipe. The limiting component 33 establishes a lock when the wedge-shaped extruder 10 is pushed and maintains the clamping after disengagement; the lifting plate 7 continues to descend, and the cutting blade 9 cuts the pipe to a fixed length; The lifting plate 7 rises, and the sliding seat 28 moves to below the grinding wheel 26 via the linkage mechanism; the limiting component 33 remains locked, and the pipe is clamped and does not shift throughout the entire transportation process. The lifting plate 7 rises and drives the lifting seat 22 to fall via the first rack 21, connecting gear 27, and second rack 24. The grinding wheel 26 rotates and inserts into the pipe fitting cut. Grinding wheel 26 deburrs the cut surfaces of the pipe fittings; When the lifting seat 22 descends, the wedge-shaped release rod 30 cooperates with the limit component 33 to release the lock, the clamping sliding seat 32 resets and the pipe is released; The lifting plate 7 descends, causing the grinding wheel 26 to disengage. The pipe feeding mechanism 3 outputs the finished product and feeds in the next pipe, thus achieving continuous processing.

[0044] The remaining structure is the same as that in Example 1.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A processing device for irregularly shaped tubular fittings for fitness equipment, comprising a body (1), wherein a fitting feeding mechanism (3) is fixedly connected to the top end of the body (1), characterized in that: It also includes a base clamping assembly (4), a cutting assembly (5), and a grinding assembly (6); the base clamping assembly (4) includes a sliding seat (28), a clamping fixing seat (31), and a clamping sliding seat (32), the clamping fixing seat (31) is fixed to the sliding seat (28), the clamping sliding seat (32) is slidably disposed on the sliding seat (28), and the pipe is inserted between the two; The cutting assembly (5) includes a lifting plate (7), a cutting blade (9), and a wedge-shaped extruder (10); the grinding assembly (6) includes a lifting seat (22) and a grinding wheel (26); a linkage mechanism is provided between the lifting plate (7) and the sliding seat (28). When the lifting plate (7) descends, the linkage mechanism drives the sliding seat (28) to move below the cutting blade (9), and the wedge-shaped extruder (10) presses down to clamp the sliding seat (32) and the clamping fixing seat (31) to clamp the pipe. When the lifting plate (7) rises, it drives the sliding seat (28) to move below the grinding wheel (26). The sliding seat (28) is provided with a limiting component (33), which is used to establish a lock when the wedge-shaped extruder (10) presses and clamps the sliding seat (32), and to maintain clamping after release; the grinding component (6) is provided with a wedge-shaped release rod (30), which, in conjunction with the limiting component (33), releases the lock on the clamping sliding seat (32) when the grinding wheel (26) grinds the cut of the pipe fitting.

2. The processing equipment for irregularly shaped tubular fittings for fitness equipment according to claim 1, characterized in that: The linkage mechanism includes a fixed plate (16), a rotating shaft (17), a torsion spring (18), a rotating plate (19), and a fixed wheel (29). The fixed plate (16) is fixedly connected to the top of the machine body (1). The rotating shaft (17) is rotatably mounted on the fixed plate (16). The torsion spring (18) is sleeved on the rotating shaft (17). The rotating plate (19) is sleeved on the rotating shaft (17) and is L-shaped. A straight groove (20) is opened at the longer end of the rotating plate (19). The fixed wheel (29) is fixedly connected to both sides of the sliding seat (28) and slides with the straight groove (20). When the lifting plate (7) is raised or lowered, the sliding seat (28) is driven by the linkage mechanism to move back and forth between the cutting blade (9) and the grinding wheel (26).

3. The processing equipment for irregularly shaped tubular fittings for fitness equipment according to claim 2, characterized in that: The cutting assembly (5) also includes a fixed cylinder (13), a sliding rod (14), and a first spring (15); the fixed cylinder (13) is fixed to the rear end of the lifting plate (7), the sliding rod (14) is slidably sleeved on the inner wall of the fixed cylinder (13), and the first spring (15) is located inside the fixed cylinder (13) with its two ends abutting against the top end of the inner wall of the fixed cylinder (13) and the top end of the sliding rod (14), respectively; when the lifting plate (7) descends, the sliding rod (14) contacts the shorter end of the rotating plate (19) and pushes the rotating plate (19) to rotate around the rotating shaft (17), thereby driving the sliding seat (28) to move laterally through the straight slot (20) and the fixed wheel (29).

4. The processing equipment for irregularly shaped tubular fittings for fitness equipment according to claim 1, characterized in that: The top of the machine body (1) is fixedly connected to a bracket (2), and the top of the bracket (2) is fixedly connected to a drive cylinder (8). The output end of the drive cylinder (8) is fixedly connected to the top of the lifting plate (7) to drive the lifting plate (7) to rise and fall. The cutting assembly (5) also includes a guide post (11) and a compression spring (12). The guide post (11) is fixedly connected to the top of the machine body (1) and slides in contact with the inner wall of the lifting plate (7). The compression spring (12) is sleeved on the circumferential surface of the guide post (11) and its two ends abut against the top of the machine body (1) and the bottom of the lifting plate (7) respectively, so as to guide the lifting plate (7) to rise and fall and provide a reset buffer.

5. The processing equipment for irregularly shaped tubular fittings for fitness equipment according to claim 1, characterized in that: The grinding assembly (6) further includes a first rack (21), a connecting gear (27), a second rack (24), a guide rod (23), and a transmission belt (25); the first rack (21) is fixedly connected to the front end of the lifting plate (7), the connecting gear (27) is rotatably disposed on the inner wall of the machine body (1) and meshes with the first rack (21), the second rack (24) meshes with the connecting gear (27) and its top end is fixedly connected to the bottom end of the lifting seat (22), the guide rod (23) is fixedly connected to the front end of the lifting seat (22) and slidably connected to the top end of the machine body (1); the lifting seat (22) is provided with a drive motor, and the output end of the drive motor drives the grinding wheel (26) to rotate via the transmission belt (25).

6. The processing equipment for irregularly shaped tubular fittings for fitness equipment according to claim 1, characterized in that: The limiting component (33) includes a fixing member (34), a first cylinder (35), a second spring (36), a fixing sleeve (37), and a second cylinder (38). The fixing member (34) is fixedly connected to the top of the sliding seat (28). The first cylinder (35) is fixedly connected to the side of the clamping sliding seat (32) away from the clamping fixing seat (31) and is slidably connected to the fixing member (34). The second spring (36) is sleeved on the circumferential surface of the first cylinder (35) and its two ends abut against the fixing member (34) and the clamping sliding seat (32) respectively. The fixing sleeve (37) is fixedly connected to the first cylinder (35), and the second cylinder (38) is slidably sleeved inside the fixing sleeve (37).

7. The processing equipment for irregularly shaped tubular fittings for fitness equipment according to claim 6, characterized in that: The limiting component (33) also includes a wedge block (39), a third spring (40), a semicircular block (41), and a lifting wedge rod (42); the second cylinder (38) is fixedly connected to the end away from the fixing member (34) with the wedge block (39), the third spring (40) is sleeved on the circumferential surface of the second cylinder (38) and its two ends respectively abut against the fixing sleeve (37) and the second cylinder (38); the semicircular block (41) is fixedly connected to the end of the second cylinder (38) close to the fixing member (34), the lifting wedge rod (42) is slidably connected to the inner wall of the fixing member (34), when the wedge extruder (10) pushes and clamps the sliding seat (32), the semicircular block (41) passes over and triggers the lifting wedge rod (42) to lock the clamping sliding seat (32).

8. The processing equipment for irregularly shaped tubular fittings for fitness equipment according to claim 7, characterized in that: The limiting component (33) also includes a sliding block (43), a fourth spring (44), and a fifth spring (45); the sliding block (43) is slidably sleeved on the second cylinder (38) and has an inclined surface at one end near the wedge block (39); the fourth spring (44) is sleeved on the second cylinder (38) and its two ends abut against the sliding block (43) and the semicircular block (41) respectively; the fifth spring (45) is sleeved on the lifting wedge rod (42) and its two ends abut against the fixing member (34) and the lifting wedge rod (42) respectively; after the semicircular block (41) passes over the lifting wedge rod (42), the fifth spring (45) pushes the lifting wedge rod (42) to reset and be located on the retraction path of the semicircular block (41) to prevent the semicircular block (41) from retracting, thereby keeping the clamping sliding seat (32) locked; The pipe feeding mechanism (3) consists of two parts, which are respectively located near the front and rear ends of the machine body (1). The gaps between the two pipe feeding mechanisms (3), the clamping fixing seat (31), and the clamping sliding seat (32), the cutting blade (9), and the grinding wheel (26) are on the same axis.

9. The processing equipment for irregularly shaped tubular fittings for fitness equipment according to claim 8, characterized in that: The wedge-shaped release rod (30) is fixedly connected to one end of the lifting seat (22) near the grinding wheel (26). The bottom end of the wedge-shaped release rod (30) slides in contact with the top end of the wedge block (39). When the wedge-shaped release rod (30) descends to the grinding position with the lifting seat (22), it pushes the wedge block (39) and compresses the third spring (40). The second cylinder (38) drives the sliding block (43) to move. The inclined surface of the sliding block (43) pushes the lifting wedge rod (42) up and compresses the fifth spring (45).

10. A method for processing irregularly shaped tubular components for fitness equipment, characterized in that, The operation using the processing equipment for irregularly shaped tubular parts of fitness equipment according to any one of claims 1 to 9 includes the following steps: S1. Loading and positioning: Insert the pipe fitting from the rear end of the machine body (1), and transport it to the position to be cut through the pipe fitting feeding mechanism (3). The pipe fitting passes through the clamping fixed seat (31) and the clamping sliding seat (32). S2, Lowering and clamping: The driving cylinder (8) drives the lifting plate (7) to descend, and the sliding seat (28) is moved to the lower part of the cutting blade (9) by the linkage mechanism. The wedge extruder (10) presses down to clamp the sliding seat (32) and the clamping fixed seat (31) to clamp the pipe. S3, Locking and Cutting: The limiting component (33) establishes a lock when the wedge extruder (10) pushes and retains the clamp after disengagement; the lifting plate (7) continues to descend and the cutting blade (9) cuts the pipe to a fixed length; S4, Lifting and Transporting: The lifting plate (7) rises and the sliding seat (28) is moved to the ground wheel (26) via the linkage mechanism; the limiting component (33) remains locked, and the pipe is clamped and does not shift throughout the transport process; S5, Grinding and lowering: The lifting plate (7) rises and drives the lifting seat (22) to fall through the first rack (21), connecting gear (27), and second rack (24), and the grinding wheel (26) rotates and inserts into the pipe fitting cut; S6. Grinding: Grinding wheel (26) deburrs the cut of the pipe fitting; S7. Release clamping: When the lifting seat (22) descends, the wedge release rod (30) cooperates with the limit component (33) to release the lock, the clamping sliding seat (32) resets and the pipe is released; S8, Reset Cycle: The lifting plate (7) descends to disengage the grinding wheel (26), the pipe feeding mechanism (3) outputs the finished product and feeds in the next pipe, repeating S1 to S8 to achieve continuous processing.

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