An up and down feeding and cutting device for piston rings

Abstract

This invention relates to the field of piston ring processing technology, specifically to a piston ring loading, unloading, and cutting device, comprising a feeding vibratory feeder and a machine frame. The feeding vibratory feeder is located on one side of the machine frame, and a linear feeder is fixedly installed at the outlet of the feeding vibratory feeder, with one side of the linear feeder extending into the interior of the machine frame. This invention integrates multiple processing steps—workpiece loading, cutting, finished product unloading, and tooling cleaning—into a single unit by setting up a ring-shaped four-station layout combined with a rotary processing table structure. This replaces the traditional separate and intermittent processing structure. Relying on the regular rotation and transfer of the rotary processing table, the piston rings are automatically transferred and transported between the various processing stations, eliminating the drawbacks of traditional equipment such as dispersed processes, cumbersome workpiece transfer, and long process intervals. This effectively shortens the overall piston ring processing cycle and improves the overall processing efficiency of the equipment, making it suitable for large-scale, continuous industrial piston ring production operations.

Description

Technical Field

[0001] This invention relates to the field of piston ring processing technology, specifically to a piston ring loading, unloading, and cutting device. Background Technology

[0002] Piston rings are core sealing components in internal combustion engines and pneumatic equipment. The precision of their cutting and the integrity of their forming directly determine the overall sealing performance and service life of the equipment. Therefore, the cutting process in the production and processing of piston rings is a particularly critical processing step.

[0003] Existing piston ring processing equipment adopts a split-type operation structure, which separates the processes of loading, cutting, unloading, and tooling cleaning of piston rings into independent operations. There is a lack of linkage between the processing processes, and the workpiece flow relies on manual assistance or simple conveying equipment. The overall processing continuity is poor, the production cycle interval is long, and it is difficult to meet the production needs of continuous production of large batches of piston rings. At the same time, the positioning and clamping structure of traditional equipment for piston rings is relatively simple, mostly using a single rigid clamping method. For piston rings with thin-walled annular structures, workpiece displacement, surface wear, and extrusion deformation are very likely to occur during clamping and cutting. This results in large deviations in piston ring cut dimensions, insufficient cut flatness, and low workpiece yield.

[0004] Therefore, we propose a piston ring loading, unloading, and cutting device. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a piston ring loading, unloading, and cutting device, which solves the problems of lack of linkage between various processing steps of piston rings, workpiece transfer relying on manual assistance or simple conveying equipment, poor overall processing continuity, long production cycle intervals, and difficulty in meeting the production needs of large-volume continuous piston ring production.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a piston ring loading / unloading and cutting device, comprising a feeding vibratory feeder and a machine frame, wherein the feeding vibratory feeder is located on one side of the machine frame, and a linear feeding frame is fixedly provided at the outlet of the feeding vibratory feeder, one side of which extends into the interior of the machine frame; a fixed drive frame is fixedly provided in the middle of the interior of the machine frame, and a processing rotary table is rotatably provided on the top of the fixed drive frame; cutting positioning structures are provided around the top of the processing rotary table; the device is located inside the machine frame and... The fixed drive frame is equipped with a loading station, a cutting station, a unloading station, and an air blowing station. One side of the linear feeder extends to the bottom of the loading station. A cutting suction pipe is fixedly installed on one side of the cutting station, and one end of the cutting suction pipe is connected to a suction fan. An unloading rack is fixedly installed on one side of the unloading station, and one side of the unloading rack extends to the outside of the equipment frame. A piston ring collection frame is placed at the bottom of the unloading rack. A cleaning suction pipe is fixedly installed on one side of the air blowing station, and one end of the cleaning suction pipe is connected to a suction fan.

[0007] Furthermore, the linear feeder is provided with a feeding chute inside, and the top of the feeding chute is provided with an opening. A feeding limit cover is also fixedly provided on one side of the top of the linear feeder.

[0008] Furthermore, the cutting positioning structure includes a lower positioning seat and an upper positioning seat. Lower mold mounting seats are fixedly provided around the top of the machining rotary table, and the top of each of the four lower mold mounting seats is movably inserted with a lower positioning seat.

[0009] Furthermore, a lifting servo cylinder is fixedly installed inside the equipment frame and on one side of the cutting station. A lifting frame is fixedly installed at the drive end of the lifting servo cylinder. An upper positioning seat is fixedly installed on one side of the lifting frame. The bottom of the upper positioning seat is provided with a positioning groove that cooperates with the lower positioning seat. The surface of the lower positioning seat is provided with several lower cutting grooves. A matching upper cutting groove is also provided on one side of the upper positioning seat. The width of the upper cutting groove is greater than the width of the lower cutting groove.

[0010] Furthermore, the loading station includes a loading fixing frame, and the unloading station includes an unloading fixing frame. The loading fixing frame and the unloading fixing frame are respectively fixed on the top of the equipment frame and on both sides of the processing rotary table. A transverse servo electric cylinder is fixed on one side of both the loading fixing frame and the unloading fixing frame, and a sliding support frame is fixed on the back of both the loading fixing frame and the unloading fixing frame. Movable frames are slidably provided on the surface of both sliding support frames, and the drive ends of the two transverse servo electric cylinders are respectively fixedly connected to one side of the two movable frames.

[0011] Furthermore, a longitudinal servo electric cylinder is fixedly installed on the top of each of the two movable frames, and a movable plate is fixedly installed on the drive end of each of the two longitudinal servo electric cylinders. A sliding guide rail is fixedly installed on the back of each of the two movable frames, and one side of the movable plate is slidably connected to the surface of the sliding guide rail.

[0012] Furthermore, a feeding block is fixedly installed at the bottom of the movable plate on the feeding frame, and feeding micro electric cylinders are fixedly installed around the inside of the feeding block. The driving ends of the four feeding micro electric cylinders are all fixedly installed with feeding adsorption plates, and each feeding adsorption plate has an outer arc surface on its outer side, and each outer arc surface is covered with a rubber pad.

[0013] Furthermore, a feeding ring is fixedly installed at the bottom of the movable plate on the feeding frame, and a material picking groove is provided inside the feeding ring, the diameter of which is larger than the diameter of the piston ring; feeding micro electric cylinders are fixedly installed around the outside of the feeding ring, and the drive ends of the four feeding micro electric cylinders extend into the inside of the material picking groove. Feeding adsorption plates are fixedly installed at the drive ends of the four feeding micro electric cylinders, and the inner side of the four feeding adsorption plates is provided with an inner arc surface, and the surface of each inner arc surface is covered with a rubber pad.

[0014] Furthermore, the cutting station includes a cutting servo cylinder, a cutting servo motor, and a cutting blade. The cutting servo cylinder is fixedly installed on the back of the inner wall of the equipment frame, and a mounting plate is fixedly installed on the drive end of the cutting servo cylinder. A cutting servo motor is fixedly installed on one side of the mounting plate, and a cutting blade is fixedly installed on one end of the output shaft of the cutting servo motor.

[0015] Furthermore, the air blowing station includes an air blowing servo cylinder and an air blowing nozzle. The air blowing servo cylinder is fixedly installed on the front of the inner wall of the equipment frame. The air blowing nozzle is fixedly installed on the drive end of the air blowing servo cylinder. One end of the air blowing nozzle is provided with an arc-shaped air blowing port, and the air blowing nozzle is connected to an air pump through an air guide pipe.

[0016] Compared with existing technologies, it has the following advantages: 1. By setting up a circular four-station layout with a rotary processing table structure, multiple processing steps such as workpiece loading, cutting, finished product unloading, and tooling cleaning are integrated into one unit, replacing the traditional separate and intermittent processing structure. Relying on the regular rotation and transfer of the rotary processing table, the piston rings are automatically transferred and transported between various processing stations. This eliminates the drawbacks of traditional equipment, such as dispersed processes, cumbersome workpiece transfer, and long process intervals, significantly shortening the overall piston ring processing cycle and effectively improving the overall processing efficiency of the equipment. It is suitable for large-scale, continuous piston ring production operations in industry.

[0017] 2. By employing a split upper and lower positioning structure to clamp and fix the piston rings, coupled with upper and lower cutting grooves of varying widths, the system can achieve all-round fit and limitation of the thin-walled annular piston rings. This effectively prevents the workpiece from shaking, shifting, and deforming during high-speed cutting, ensuring the uniformity of the piston ring cut dimensions and the flatness of the cut end face. It also provides ample feed space for the cutting tool, reducing wear and tear on the tool and fixture. Simultaneously, the equipment adopts a dual-servo linkage cutting feed structure, which can precisely control the tool feed position and cutting speed. Compared to traditional cylinder-driven cutting structures, this provides higher processing adjustment accuracy and can adapt to the cutting and production of piston rings of various specifications, effectively broadening the equipment's processing application range and significantly improving the processing accuracy and yield of finished piston rings.

[0018] 3. By extracting and collecting metal scrap and dust generated during the cutting process in real time, and after each workpiece is unloaded, the cutting groove of the tooling positioning structure is cleaned by high-pressure blowing, and the residual debris is collected and discharged at the same time, the residual processing waste inside the tooling is thoroughly removed, avoiding residual waste from adhering to the tooling surface or accumulating in the processing area, preventing quality problems such as surface scratches, positioning misalignment, and processing defects in the piston rings processed later, and continuously stabilizing the processing quality of the workpiece. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a piston ring loading, unloading, and cutting device structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the movable plate and feeding chute structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the feeding block and feeding adsorption plate structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the cutting blade and upper positioning seat structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the fixed drive frame and machining rotary table structure according to an embodiment of the present invention; Figure 6 This is an embodiment of the present invention. Figure 5 Enlarged schematic diagram of the structure at point A; Figure 7 This is a schematic diagram of the feeding ring and feeding adsorption plate structure in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the air-blowing servo electric cylinder and air-blowing nozzle in an embodiment of the present invention.

[0020] In the diagram: 1. Vibratory feeder; 2. Linear feeder; 3. Equipment frame; 4. Fixed drive frame; 5. Machining rotary table; 6. Loading station; 7. Cutting station; 8. Unloading station; 9. Air blowing station; 10. Cutting suction pipe; 11. Unloading frame; 12. Cleaning suction pipe; 13. Rotary servo motor; 14. Lower mold mounting base; 15. Lower positioning base; 16. Lower cutting groove; 17. Loading fixed frame; 18. Unloading fixed frame; 19. Horizontal servo electric cylinder; 20. Sliding support frame; 21. Movable frame; 22. 23. Longitudinal servo electric cylinder; 24. Movable plate; 25. Sliding guide rail; 26. Feeding block; 27. Feeding mini electric cylinder; 28. Feeding adsorption plate; 29. ​​Discharge ring; 30. Discharge mini electric cylinder; 31. Discharge adsorption plate; 32. Feeding chute; 33. Feeding limit cover plate; 34. Cutting servo electric cylinder; 35. Mounting plate; 36. Cutting servo motor; 37. Cutting blade; 38. Lifting servo electric cylinder; 39. Lifting frame; 40. Upper positioning seat; 41. Upper cutting groove; 42. Air blowing servo electric cylinder; 43. Air blowing nozzle. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1:

[0023] Please see Figures 1 to 8As shown, a piston ring loading, unloading, and cutting device includes: a feeding vibratory feeder 1 and a machine frame 3. The feeding vibratory feeder 1 is located on one side of the machine frame 3, and a linear feeding frame 2 is fixedly provided at the outlet of the feeding vibratory feeder 1. One side of the linear feeding frame 2 extends into the interior of the machine frame 3. A fixed drive frame 4 is fixedly provided in the middle of the interior of the machine frame 3, and a processing rotary table 5 is rotatably provided on the top of the fixed drive frame 4. Cutting positioning structures are provided around the top of the processing rotary table 5. A loading station 6, a cutting station 7, a unloading station 8, and an air blowing station 9 are respectively provided inside the machine frame 3 and around the fixed drive frame 4, and one side of the linear feeding frame 2 extends to the lower side of the loading station 6. The piston ring to be processed is fed into the interior of the linear feeding frame 2 by the feeding vibratory feeder 1, and the piston ring is water-cooled by the linear feeding frame 2. The piston rings are conveyed to the lower side of the loading station 6. The loading station 6 sends the piston rings to the cutting positioning structure on the top of the machining rotary table 5, near the loading station 6. Then, the machining rotary table 5 is rotated 90 degrees to move the cutting positioning structure with the piston rings to the side of the cutting station 7. The piston rings are cut at the cutting station 7. After the cutting is completed, the machining rotary table 5 is rotated 90 degrees to send the piston rings to the side of the unloading station 8. The unloading station 8 removes the piston rings from the cutting positioning structure. The air blowing station 9 cleans the unloaded cutting positioning structure with air to remove the debris. Then, the piston rings are fed back through the loading station 6, and the continuous feeding, cutting, unloading, and cleaning of the cutting positioning structure of the piston rings are performed.

[0024] Furthermore, a cutting suction pipe 10 is fixedly installed on one side of the cutting station 7, and one end of the cutting suction pipe 10 is connected to a suction fan for extracting and collecting waste generated during the cutting of piston rings; a feeding rack 11 is fixedly installed on one side of the unloading station 8, and one side of the feeding rack 11 extends to the outside of the equipment frame 3, with a piston ring collection frame placed at the lower end of the feeding rack 11; a cleaning suction pipe 12 is fixedly installed on one side of the blowing station 9, and one end of the cleaning suction pipe 12 is connected to a suction fan. When the cutting positioning structure is cleaned using the blowing station 9, the cleaning suction pipe 12 is used to promptly discharge the blown-out waste.

[0025] Specifically, by mounting the feeding vibratory feeder 1 on the outside of the equipment frame 3, and having its outlet connected to a linear feeding frame 2 extending into the equipment frame 3, automated and orderly feeding of piston rings can be achieved. A fixed drive frame 4, centrally mounted inside the equipment frame 3, provides support for the processing rotary table 5. The cutting and positioning structures around the processing rotary table 5 enable positioning and fixing during piston ring processing. Inside the equipment frame 3, around the fixed drive frame 4, are sequentially arranged loading stations 6, cutting stations 7, unloading stations 8, and air blowing stations 9. These stations form a circular processing line around the processing rotary table 5. During operation, the feeding vibratory feeder 1 completes the automatic feeding of piston rings. The piston rings are conveyed horizontally to the loading station 6 via the linear feeder 2. The loading station 6 transfers the workpieces to the positioning structure of the machining rotary table 5. Relying on the 90-degree rotation of the machining rotary table 5, the piston rings are sequentially conveyed to the cutting station 7 and the unloading station 8 to complete the cutting and unloading of the finished products. Finally, the tooling structure is cleaned by the air blowing station 9, and the continuous processing is completed in a cycle. At the same time, the cutting suction pipe 10 of the cutting station 7 can extract the waste generated by the cutting process, the unloading rack 11 of the unloading station 8 can realize the unified collection of finished products, and the cleaning suction pipe 12 of the air blowing station 9 can assist in collecting the cleaned waste.

[0026] By using a four-station circular layout with a rotary processing table, the traditional split processing equipment is replaced. It integrates multiple processes such as feeding, processing, unloading, and cleaning, and realizes continuous operation of the equipment. This significantly reduces the process flow interval, improves the processing efficiency of piston rings, and the dual suction structure can effectively collect the waste generated during processing and cleaning, avoiding the impact of waste residue on processing accuracy, improving the processing environment of the equipment, and reducing the defect rate of workpieces.

[0027] Example 2:

[0028] Specifically, the linear feeder 2 is provided with a feeding chute 31 inside, and the top of the feeding chute 31 is provided with an opening. A feeding limit cover plate 32 is also fixed on one side of the top of the linear feeder 2, which is used to horizontally transport and limit the piston rings inside the feeding chute 31. The piston rings are horizontally transported to one side of the loading station 6 through the feeding chute 31 for loading operation.

[0029] Specifically, the cutting positioning structure includes a lower positioning seat 15 and an upper positioning seat 39. The top of the machining rotary table 5 is fixedly provided with lower mold mounting seats 14 on all four sides, and the top of each of the four lower mold mounting seats 14 is movably connected to a lower positioning seat 15. The surface of the lower mold mounting seat 14 is provided with a regular octagonal prism, and the interior of the lower positioning seat 15 is provided with an inner octagonal groove that mates with the lower mold mounting seat 14. After the lower mold mounting seat 14 and the lower positioning seat 15 are inserted, they are fixed and limited by bolts on the top of the lower mold mounting seat 14.

[0030] Furthermore, a lifting servo cylinder 37 is fixedly installed inside the equipment frame 3 and on one side of the cutting station 7. A lifting frame 38 is fixedly installed at the drive end of the lifting servo cylinder 37. An upper positioning seat 39 is fixedly installed on one side of the lifting frame 38, and a positioning groove that cooperates with the lower positioning seat 15 is provided at the bottom of the upper positioning seat 39.

[0031] Furthermore, the surface of the lower positioning seat 15 is provided with a plurality of lower cut grooves 16, and one side of the upper positioning seat 39 is also provided with a matching upper cut groove 40, the width of the upper cut groove 40 being greater than the width of the lower cut groove 16.

[0032] During processing, the piston ring is placed on the surface of the lower positioning seat 15. When the piston ring is cut, the lifting frame 38 is controlled to move downward by the drive end of the lifting servo cylinder 37 until the bottom of the upper positioning seat 39 matches the top of the lower positioning seat 15, so that the piston ring is limited between the lower positioning seat 15 and the upper positioning seat 39. Finally, the cutting tool is controlled to be inserted between the lower cutting groove 16 and the upper cutting groove 40 to complete the cutting of the piston ring.

[0033] Specifically, by opening a top-opening feeding chute 31 inside the linear feeding frame 2, and fixing a feeding limiting cover plate 32 on one side of its top, the piston rings slide horizontally along the inside of the feeding chute 31 under the power of the feeding vibrating plate 1. The feeding limiting cover plate 32 can vertically limit the piston rings inside the chute, preventing the workpiece from tilting, shifting, or falling off during the conveying process, ensuring that the piston rings always maintain a horizontal and regular conveying posture, and accurately conveying them to the loading station 6 to complete the loading. The cutting positioning structure uses the lower mold mounting base 14 fixed around the processing rotary table 5 as the mounting base. The lower mold mounting base 14 adopts a regular octagonal prism structure, forming an insertion fit structure with the inner octagonal groove inside the lower positioning base 15, and is secured by bolts. After the locking and fixing are completed, the lower positioning seat 15 can be detached and positioned. The lifting servo cylinder 37 on one side of the cutting station 7 can drive the lifting frame 38 to move vertically, which drives the upper positioning seat 39 fixed on the side of the lifting frame 38 to move synchronously. The positioning groove at the bottom of the upper positioning seat 39 can be precisely connected with the lower positioning seat 15. At the same time, the surface of the lower positioning seat 15 is provided with several lower cutting grooves 16, and the upper positioning seat 39 is provided with a wider upper cutting groove 40. The two work together to form a processing gap for the tool to pass through. During the processing, the piston ring is sleeved and fixed on the surface of the lower positioning seat 15. The lifting servo cylinder 37 drives the upper positioning seat 39 to press down, which works with the lower positioning seat 15 to clamp the limiting piston ring. The tool passes through the upper and lower cutting grooves to complete the workpiece cutting.

[0034] The combination of the limiting cover plate and the slide groove ensures the stability and consistency of workpiece feeding, avoiding feeding failure caused by feeding deviation. The octagonal plug-in structure improves the installation accuracy and ease of disassembly and assembly of the positioning seat, facilitating equipment maintenance and parts replacement. The upper and lower split positioning structure, combined with the slit grooves of varying widths, can firmly clamp the piston rings, preventing workpiece shaking and displacement during processing, while also reserving sufficient processing space for the cutting tool, effectively improving the dimensional accuracy of the piston ring slits and the processing yield.

[0035] Example 3:

[0036] Specifically, the loading station 6 includes a loading fixing frame 17, and the unloading station 8 includes an unloading fixing frame 18. The loading fixing frame 17 and the unloading fixing frame 18 are respectively fixed on the top of the equipment frame 3 and on both sides of the processing rotary table 5. A transverse servo electric cylinder 19 is fixed on one side of both the loading fixing frame 17 and the unloading fixing frame 18, and a sliding support frame 20 is fixed on the back of both the loading fixing frame 17 and the unloading fixing frame 18. Movable frames 21 are slidably mounted on the surfaces of both sliding support frames 20, and the drive ends of the two transverse servo electric cylinders 19 are respectively fixed to one side of the two movable frames 21. The system is configured to automatically load and unload piston rings. The movable frame 21 is horizontally slidable on the surface of the sliding support frame 20 by controlling the drive end of the transverse servo cylinder 19. Both movable frames 21 have a fixed top with a longitudinal servo cylinder 22, and both longitudinal servo cylinders 22 have a fixed drive end with a movable plate 23. Both movable frames 21 have a fixed back with a sliding guide rail 24, and one side of the movable plate 23 is slidably connected to the surface of the sliding guide rail 24. The movable plate 23 is controlled to slide up and down on one side of the movable frame 21 by controlling the drive end of the longitudinal servo cylinder 22.

[0037] Furthermore, a feeding block 25 is fixedly provided at the bottom of the movable plate 23 on the feeding fixed frame 17, and feeding micro electric cylinders 26 are fixedly provided around the inside of the feeding block 25. The driving ends of the four feeding micro electric cylinders 26 are all fixedly provided with feeding adsorption plates 27, and each feeding adsorption plate 27 has an outer arc surface on its outer side, and the surface of each outer arc surface is covered with a rubber pad.

[0038] In use, the horizontal servo cylinder 19 and the vertical servo cylinder 22 work together to insert the feeding block 25 into the upper side of the piston ring inside one side of the feeding chute 31. The driving end of the feeding micro electric cylinder 26 controls the feeding adsorption plate 27 to fit against the inner surface of the piston ring, so that the piston ring is taken out from the inside of the feeding chute 31 and transferred to the cutting positioning structure, thus realizing the automatic feeding operation of the piston ring.

[0039] Furthermore, a feeding ring 28 is fixedly provided at the bottom of the movable plate 23 on the feeding fixing frame 18, and a material picking groove is provided inside the feeding ring 28, the diameter of which is larger than the diameter of the piston ring; feeding micro electric cylinders 29 are fixedly provided around the outside of the feeding ring 28, and the driving ends of the four feeding micro electric cylinders 29 extend into the inside of the material picking groove. Feeding adsorption plates 30 are fixedly provided at the driving ends of the four feeding micro electric cylinders 29, and the inner side of the four feeding adsorption plates 30 is provided with an inner arc surface, and the surface of each inner arc surface is covered with a rubber pad.

[0040] In use, by controlling the feeding ring 28 to be fitted onto the outer circumferential surface of the piston ring on the cutting positioning interface, and cooperating with the drive end of the feeding micro electric cylinder 29 to control the feeding adsorption plate 30 to fit against the outer circumferential surface of the piston ring, the piston ring is removed from the cutting positioning structure. Finally, the piston ring is sent out through the feeding rack 11, realizing the automatic feeding operation of the piston ring.

[0041] Specifically, by fixing the loading and unloading fixing frames 17 and 18 to the corresponding positions on the top of the equipment frame 3, the horizontal servo electric cylinders 19 installed on one side of the two fixing frames can drive the movable frame 21 to slide horizontally along the sliding support frame 20. The vertical servo electric cylinders 22 mounted on the top of the movable frame 21 can drive the movable plate 23 to complete the vertical lifting and lowering movement along the sliding guide rail 24. Through the dual-axis linkage of the horizontal and vertical servo electric cylinders, the multi-dimensional precise displacement of the material picking structure is realized. In terms of loading, the loading block 25 is installed at the bottom of the movable plate 23 corresponding to the loading fixing frame 17. Four loading micro electric cylinders 26 are arranged around the inside of the loading block 25. The driving end of each micro electric cylinder is connected to the loading adsorption plate 27 with an outer arc surface and a rubber pad. When the equipment is loading, the dual-axis servo structure drives the loading block 25 to extend into the inner side of the piston ring in the feeding chute 31. The micro electric cylinder drives the adsorption plate to expand outward and fit against the inner surface of the piston ring. The workpiece is gripped by the friction and fit of the rubber pad and then transferred to the cutting positioning structure to complete the loading. For unloading, the bottom of the movable plate 23 corresponding to the unloading fixed frame 18 is fixed with an unloading ring 28. The unloading ring 28 is equipped with a material picking groove inside and four unloading micro electric cylinders 29 are arranged on the outer periphery. The drive end of the cylinder is connected to an unloading adsorption plate 30 with an inner arc surface and a rubber pad. During the unloading operation, the unloading ring 28 is sleeved on the outside of the processed piston ring. The micro electric cylinder drives the adsorption plate to retract and fit against the outer surface of the piston ring. After grabbing the workpiece, it is transferred to the unloading frame 11 to complete the unloading and collection.

[0042] The dual-servo electric cylinder linkage structure achieves precise displacement control of the loading and unloading mechanism with extremely low positioning error, making it suitable for high-precision piston ring processing. The four-sided distributed micro electric cylinders, combined with the arc-shaped rubber adsorption plate gripping structure, can adapt to the irregular structure of the annular piston ring. The multi-point contact gripping and uniform force distribution can effectively avoid workpiece deformation and slippage damage. At the same time, the rubber pad can play a buffering and protective role, eliminating workpiece surface scratches caused by rigid metal clamping, and comprehensively improving the stability of automated loading and unloading and the quality of finished workpieces.

[0043] Example 4:

[0044] Specifically, the cutting station 7 includes a cutting servo cylinder 33, a cutting servo motor 35, and a cutting blade 36. The cutting servo cylinder 33 is fixedly installed on the back of the inner wall of the equipment frame 3, and a mounting plate 34 is fixedly installed on the drive end of the cutting servo cylinder 33. The cutting servo motor 35 is fixedly installed on one side of the mounting plate 34, and a cutting blade 36 is fixedly installed on one end of the output shaft of the cutting servo motor 35.

[0045] During processing, the mounting plate 34 is moved to one side of the lower positioning seat 15 by the drive end of the cutting servo electric cylinder 33. The output shaft of the cutting servo motor 35 drives the cutting blade 36 to rotate until the cutting blade 36 is inserted into the lower cutting groove 16 and the upper cutting groove 40, thus completing the cutting processing of the piston ring.

[0046] Specifically, a cutting servo cylinder 33 is fixedly installed on the back of the inner wall of the equipment frame 3. The drive end of the cutting servo cylinder 33 is equipped with a mounting plate 34, and a cutting servo motor 35 is fixed on the outside of the mounting plate 34. The output shaft of the cutting servo motor 35 is equipped with a cutting blade 36, forming an integrated cutting execution component. When the equipment performs piston ring cutting, the cutting servo cylinder 33 drives the mounting plate 34 to move horizontally towards the positioned piston ring, precisely adjusting the relative position of the cutting blade 36 and the workpiece. At the same time, the cutting servo motor 35 starts running, driving the cutting blade 36 at the end to rotate at high speed, allowing the rotating cutting blade 36 to accurately insert into the gap between the lower cutting groove 16 and the upper cutting groove 40 corresponding to the lower positioning seat 15 and the upper positioning seat 39, completing high-speed cutting of the piston ring that has been limited and fixed.

[0047] By adopting a dual-servo drive structure combining a servo electric cylinder and a servo motor, which differs from the traditional cylinder-driven cutting structure, the displacement adjustment accuracy is higher and the operation stability is stronger. It can precisely control the feed distance and cutting speed of the blade, adapt to the cutting needs of piston rings of different specifications, and has greater versatility. At the same time, the automated feed cutting method effectively replaces manual processing, reduces human operation errors, and significantly improves the flatness and dimensional uniformity of the cut, thereby improving the cutting accuracy and processing efficiency of piston rings.

[0048] Example 5:

[0049] Specifically, the air blowing station 9 includes an air blowing servo cylinder 41 and an air blowing nozzle 42. The air blowing servo cylinder 41 is fixedly installed on the front of the inner wall of the equipment frame 3. The air blowing nozzle 42 is fixedly installed on the drive end of the air blowing servo cylinder 41. One end of the air blowing nozzle 42 is provided with an arc-shaped air blowing port, and the air blowing nozzle 42 is connected to an air pump through an air guide pipe.

[0050] In use, the air nozzle 42 is controlled by the drive end of the air blowing servo cylinder 41 to move the air blowing port of the air blowing nozzle 42 to one side of the lower positioning seat 15. The air blowing port is used to blow air into the lower cutting groove 16 inside the lower positioning seat 15, and the cleaning suction pipe 12 is used to clean the debris remaining inside the lower cutting groove 16.

[0051] Specifically, by fixing an air-blowing servo cylinder 41 to the front of the inner wall of the equipment frame 3, and fixing an air-blowing nozzle 42 to its drive end, the air-blowing nozzle 42 is provided with an arc-shaped air-blowing port and connected to an air pump through an air guide pipe, a complete tooling cleaning structure is formed. After the equipment completes the piston ring unloading operation, the machining rotary table 5 rotates the empty cutting positioning structure to the corresponding position of the air-blowing station 9. The air-blowing servo cylinder 41 drives the air-blowing nozzle 42 to move, so that the arc-shaped air-blowing port is precisely aligned with the inside of the lower cutting groove 16 of the lower positioning seat 15. The air pump provides high-pressure airflow to the air-blowing nozzle 42 through the air guide pipe. The high-pressure airflow is sprayed out from the arc-shaped air-blowing port to flush away the metal scraps and processing impurities remaining inside the cutting groove. At the same time, the cleaning suction pipe 12 of the equipment is matched to promptly extract and discharge the scraps and dust flushed out by the air-blowing.

[0052] The air blowing structure driven by the servo electric cylinder can precisely adjust the position and distance of the air blowing nozzle 42. The arc-shaped air blowing port can fit the cutting groove structure to achieve high-pressure flushing without dead angles, thoroughly cleaning the residual waste inside the tooling. At the same time, the air blowing and material suction work together to prevent waste from scattering and accumulating inside the equipment or remaining on the surface of the tooling. This completely solves the problems of scratches, inaccurate positioning, and cutting defects in subsequent workpiece processing caused by residual waste, continuously ensuring the accuracy of the tooling, extending the service life of the equipment and tooling, and stabilizing the overall processing quality.

[0053] Example 6:

[0054] Specifically, this embodiment also discloses a processing method for a piston ring loading, unloading, and cutting device, including the following steps: Step 1: The randomly stacked piston rings are automatically sorted and arranged by the feeding vibratory feeder 1, and the sorted piston rings are continuously fed into the feeding chute 31 inside the linear feeder 2. The linear feeder 2 continuously conveys the workpieces, and the feeding limit cover plate 32 vertically limits the piston rings inside the feeding chute 31 to prevent the piston rings from deviating or tilting during the conveying process, so that the piston rings are kept in a horizontal and stable conveying state and continuously conveyed to the bottom of the loading station 6 to wait for loading.

[0055] Step 2: The horizontal servo cylinder 19 and the vertical servo cylinder 22 on the loading station 6 work together to drive the movable frame 21 and the movable plate 23 to complete horizontal and vertical displacement, moving the bottom loading block 25 to the inside of the piston ring inside the feeding chute 31. The four loading micro-cylinders 26 inside the loading block 25 extend synchronously, pushing the loading adsorption plate 27 to expand outward, so that the outer arc surface with rubber pads tightly fits the inner surface of the piston ring. The piston ring is picked up by multi-point clamping and fixing. The servo cylinders of the loading station 6 operate in reverse, lifting and translating the picked-up piston ring as a whole, and accurately fitting it onto the surface of the lower positioning seat 15 on the processing rotary table 5 corresponding to the lower mold mounting seat 14, thus completing the automated loading operation of the equipment.

[0056] Step 3: The fixed drive frame 4 drives the top machining rotary table 5 to rotate 90 degrees clockwise, smoothly transferring the lower positioning seat 15 loaded with piston rings to the corresponding machining position of the cutting station 7.

[0057] Step 4: The lifting servo cylinder 37 on the side of the cutting station 7 drives the lifting frame 38 to move downward, causing the upper positioning seat 39 to press down, so that the positioning groove at the bottom of the upper positioning seat 39 is precisely aligned and closed with the lower positioning seat 15, and the piston ring is firmly clamped and limited between the upper positioning seat 39 and the lower positioning seat 15. The cutting servo cylinder 33 of the cutting station 7 pushes the mounting plate 34 to move towards the workpiece. At the same time, the cutting servo motor 35 drives the cutting blade 36 at the end to rotate at high speed, so that the rotating cutting blade 36 extends into the gap between the upper cutting groove 40 and the lower cutting groove 16, and performs precise cutting processing on the piston ring that has been limited.

[0058] Step 5: During the piston ring cutting process, the cutting suction pipe 10 on one side of the cutting station 7 generates negative pressure suction through the matching suction fan to extract metal scraps and dust generated during the cutting process in real time, thus completing the immediate collection of processing waste.

[0059] Step 6: After the piston ring cutting is completed, the cutting servo cylinder 33 and the lifting servo cylinder 37 are reset in sequence, so that the cutting blade 36 is removed from the workpiece. At the same time, the upper positioning seat 39 is lifted to release the limiting fixation of the piston ring. The machining rotary table 5 rotates 90 degrees again to transfer the piston ring with the completed cutting to the corresponding position of the unloading station 8.

[0060] Step 7: The horizontal servo cylinder 19 and the vertical servo cylinder 22 on the unloading station 8 operate in conjunction, driving the unloading ring 28 to move and be fitted onto the outside of the processed piston ring. The unloading micro-cylinder 29 on the outside of the unloading ring 28 retracts inward, driving the unloading suction plate 30 to move, so that the inner arc surface with rubber pads fits against the outer surface of the piston ring, clamping and fixing the piston ring at multiple points. The servo structure of the unloading station 8 lifts and translates the workpiece, taking the processed piston ring out from the surface of the lower positioning seat 15 and transferring it to the top of the unloading rack 11. The clamped piston ring is released, allowing the finished piston ring to slide down along the unloading rack 11 into the inner part of the outer piston ring collection frame, completing the unloading and collection of finished products.

[0061] Step 8: The machining rotary table 5 continues to rotate 90 degrees, and the empty lower positioning seat 15 after unloading is transferred to the corresponding position of the air blowing station 9. The air blowing servo cylinder 41 of the air blowing station 9 drives the air blowing nozzle 42 to move forward and downward, so that the arc-shaped air blowing port at the end of the air blowing nozzle 42 is aligned with the lower cutting groove 16 of the lower positioning seat 15. The air pump delivers high-pressure airflow through the air guide pipe to blow away the residual waste inside the tooling structure. At the same time as the air blowing cleaning operation, the cleaning suction pipe 12 of the air blowing station 9 continuously generates negative pressure suction to extract and discharge all the residual waste and dust blown out by the high-pressure airflow, thoroughly cleaning the cutting positioning tooling structure. The structure of the air blowing station 9 is reset, and the clean cutting positioning structure returns to the loading station 6 with the machining rotary table 5. The equipment repeats all the above steps to continuously complete the large-scale, continuous automated loading, cutting, unloading and tooling cleaning operations of piston rings.

[0062] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0063] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0064] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A piston ring loading, unloading, and cutting device, comprising a feeding vibratory plate (1) and a machine frame (3), wherein the feeding vibratory plate (1) is located on one side of the machine frame (3), and a linear feeding frame (2) is fixedly provided at the outlet of the feeding vibratory plate (1), one side of the linear feeding frame (2) extending into the interior of the machine frame (3), characterized in that, The equipment frame (3) is fixedly provided with a fixed drive frame (4) in the middle, and a processing rotary table (5) is rotatably provided on the top of the fixed drive frame (4). A cutting positioning structure is provided around the top of the processing rotary table (5). The equipment frame (3) is provided with a loading station (6), a cutting station (7), a unloading station (8) and an air blowing station (9) in the middle and around the fixed drive frame (4). One side of the linear feeder (2) extends to the bottom of the loading station (6). A cutting suction pipe (10) is fixedly installed on one side of the cutting station (7), and a suction fan is connected to one end of the cutting suction pipe (10); a feeding rack (11) is fixedly installed on one side of the unloading station (8), and one side of the feeding rack (11) extends to the outside of the equipment frame (3), and a piston ring collection frame is placed at the lower end of the feeding rack (11); a cleaning suction pipe (12) is fixedly installed on one side of the blowing station (9), and a suction fan is connected to one end of the cleaning suction pipe (12).

2. The piston ring loading, unloading, and cutting device according to claim 1, characterized in that, The linear feeder (2) is provided with a feeding chute (31) inside, and the top of the feeding chute (31) is provided with an opening. A feeding limit cover plate (32) is also fixedly provided on one side of the top of the linear feeder (2).

3. The piston ring loading, unloading, and cutting device according to claim 1, characterized in that, The cut positioning structure includes a lower positioning seat (15) and an upper positioning seat (39). The top of the machining rotary table (5) is fixedly provided with a lower mold mounting seat (14) around the perimeter, and the top of each of the four lower mold mounting seats (14) is movably inserted with a lower positioning seat (15).

4. The piston ring loading, unloading, and cutting device according to claim 3, characterized in that, Inside the equipment frame (3) and on one side of the cutting station (7), a lifting servo cylinder (37) is fixedly provided, and a lifting frame (38) is fixedly provided at the drive end of the lifting servo cylinder (37). An upper positioning seat (39) is fixedly provided on one side of the lifting frame (38), and a positioning groove that cooperates with the lower positioning seat (15) is provided at the bottom of the upper positioning seat (39). The surface of the lower positioning seat (15) is provided with several lower cutting grooves (16), and a matching upper cutting groove (40) is also provided on one side of the upper positioning seat (39). The width of the upper cutting groove (40) is greater than the width of the lower cutting groove (16).

5. The piston ring loading, unloading, and cutting device according to claim 1, characterized in that, The loading station (6) includes a loading frame (17), and the unloading station (8) includes an unloading frame (18). The loading frame (17) and the unloading frame (18) are fixedly installed on the top of the equipment frame (3) and on both sides of the processing rotary table (5). A horizontal servo cylinder (19) is fixedly installed on one side of the loading frame (17) and the unloading frame (18). A sliding support frame (20) is fixedly installed on the back of the loading frame (17) and the unloading frame (18). Movable frames (21) are slidably installed on the surface of the two sliding support frames (20). The driving ends of the two horizontal servo cylinders (19) are fixedly connected to one side of the two movable frames (21).

6. The piston ring loading, unloading, and cutting device according to claim 5, characterized in that, Both movable frames (21) are fixedly equipped with longitudinal servo electric cylinders (22) at their tops, and both longitudinal servo electric cylinders (22) are fixedly equipped with movable plates (23) at their drive ends. Both movable frames (21) are fixedly equipped with sliding guide rails (24) on their backs, and one side of the movable plate (23) is slidably connected to the surface of the sliding guide rail (24).

7. The piston ring loading, unloading, and cutting device according to claim 6, characterized in that, A feeding block (25) is fixedly installed at the bottom of the movable plate (23) on the feeding fixed frame (17), and a feeding micro electric cylinder (26) is fixedly installed around the inside of the feeding block (25). The driving ends of the four feeding micro electric cylinders (26) are all fixedly equipped with feeding adsorption plates (27), and each feeding adsorption plate (27) has an outer arc surface on its outer side, and each outer arc surface is covered with a rubber pad.

8. The piston ring loading, unloading, and cutting device according to claim 5, characterized in that, A feeding ring (28) is fixedly provided at the bottom of the movable plate (23) on the feeding fixed frame (18), and a material picking groove is provided inside the feeding ring (28), the diameter of the material picking groove being larger than the diameter of the piston ring; feeding micro electric cylinders (29) are fixedly provided around the outside of the feeding ring (28), and the driving ends of the four feeding micro electric cylinders (29) extend into the inside of the material picking groove. Feeding adsorption plates (30) are fixedly provided at the driving ends of the four feeding micro electric cylinders (29), and an inner arc surface is provided on the inner side of the four feeding adsorption plates (30), and the surface of each inner arc surface is covered with a rubber pad.

9. The piston ring loading, unloading, and cutting device according to claim 1, characterized in that, The cutting station (7) includes a cutting servo cylinder (33), a cutting servo motor (35), and a cutting blade (36). The cutting servo cylinder (33) is fixedly installed on the back of the inner wall of the equipment frame (3), and a mounting plate (34) is fixedly installed on the drive end of the cutting servo cylinder (33). The cutting servo motor (35) is fixedly installed on one side of the mounting plate (34), and a cutting blade (36) is fixedly installed on one end of the output shaft of the cutting servo motor (35).

10. The piston ring loading, unloading, and cutting device according to claim 1, characterized in that, The air blowing station (9) includes an air blowing servo cylinder (41) and an air blowing nozzle (42). The air blowing servo cylinder (41) is fixedly installed on the front of the inner wall of the equipment frame (3). The air blowing nozzle (42) is fixedly installed at the drive end of the air blowing servo cylinder (41). One end of the air blowing nozzle (42) is provided with an arc-shaped air blowing port, and the air blowing nozzle (42) is connected to an air pump through an air guide pipe.

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