Efficient spring machining device with multi-station switching function

Abstract

The invention relates to the technical field of spring machining equipment, in particular to an efficient spring machining device with a multi-station switching function. The invention aims to solve the problems that in the prior art, dies need to be replaced when equipment adapts to wires of different sizes, machining procedures are discrete, all stations are not smoothly connected, operation is tedious, and machining efficiency is low. The device comprises a wire arranging station, a forming station, a polishing station and a material transferring station, the wire arranging station is in linkage with a wire clamping roller through a first electric push rod to be opened and closed synchronously and matched with a clamping block supported by a spring in a wire guide nozzle, the device can be matched with wires of different sizes without part replacement, the forming station drives material returning and jacking through the air path pressure difference, forming is assisted by combining with a shaping wheel, and the forming efficiency is improved. Winding and discharging can be completed without a complex sensor, the material rotating station achieves clamping and releasing by means of the dead weight of a spring, and the polishing station is matched with polishing of springs of different specifications through a spline shaft and an electric push rod. The device has the advantages of being high in integration level, high in adaptability and capable of achieving efficient and high-adaptability full-process automatic machining.

Description

Technical Field

[0001] This invention relates to the field of spring processing equipment technology, specifically a high-efficiency spring processing device with multi-station switching function. Background Technology

[0002] Compression springs, as key basic components for bearing impact and storing energy, are widely used in many fields such as automotive suspension, electronic device cushioning, and medical device repositioning. With the upgrading of the intelligent manufacturing industry, downstream industries not only have higher requirements for the dimensional accuracy and surface finish of compression springs, but also urgently need equipment with multi-specification adaptability. That is, the same production line needs to quickly switch to processing wires with diameters from 5mm to 20mm to meet the needs of small-batch, multi-variety production. This makes it increasingly difficult for traditional single-function processing equipment to adapt to flexible production scenarios.

[0003] The mainstream multi-station spring processing equipment in the current technology has obvious defects in coordination. For example, each station adopts an independent power and control module. The wire feeding speed of the whole line station and the winding speed of the forming station often have a mismatch, resulting in uneven wire stretching and spring pitch error exceeding ±0.3mm. In addition, the material transfer process relies on manual or special robot to transfer workpieces, which not only extends the station connection time to 3-5 seconds / piece, but also easily causes spring deformation or surface scratches due to improper clamping force, with a defect rate of more than 5%. Furthermore, when changing equipment, multiple components such as wire clamping mold and winding bar need to be replaced, and the time for switching a single specification exceeds 20 minutes, which seriously restricts production efficiency.

[0004] The adaptability and stability issues of existing equipment are also prominent. For example, the wire feeding mechanism is mostly a fixed gripper design, and the clamping force needs to be readjusted when the wire diameter is changed. In addition, it lacks a guiding and positioning structure, and the wire is prone to lateral displacement, which affects the subsequent forming accuracy. Furthermore, the unloading and ejection actions of the forming station rely on photoelectric sensors for triggering, which are easily affected by metal dust, causing delays in action. In addition, the grinding wheel spacing adjustment mechanism of the grinding station is slow to respond and cannot be synchronized with the switching of wire specifications. Moreover, the power transmission is easily interrupted due to spacing adjustment. These problems combined result in the overall processing efficiency of the equipment being less than 30 pieces / minute, which is difficult to meet the high-efficiency requirements of modern production. To address these issues, we propose a high-efficiency spring processing device with multi-station switching function. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art, such as the need to change molds to adapt equipment to wires of different sizes, discrete processing steps, poor connection between workstations, cumbersome operation, and low processing efficiency.

[0006] The specific solution of this invention is: Design a high-efficiency spring processing device with multi-station switching function, including a line assembly station, a forming station, a grinding station, and a material transfer station. The line assembly station includes a wire feeding table, the side wall of which has an arc groove. Multiple symmetrically arranged first transmission rods are rotatably connected to the inner wall of the arc groove. One end of each of the multiple first transmission rods is fixedly connected to a wire clamping roller. A support rod is fixedly connected to the inner wall of the wire feeding table. Two symmetrically arranged sliding sleeves are slidably connected to the side wall of the support rod. A slider is slidably connected to the inner wall of the support rod, and the lower surface of the slider is fixedly connected to... There is a first electric push rod, the lower end of which is fixedly connected to the inner bottom surface of the wire feeding table. The other ends of multiple first transmission rods and the side wall of the slider are respectively rotatably connected to the side wall of the adjacent sliding sleeve through a rotating plate. The inner wall of the wire feeding table is rotatably connected to a second transmission rod. The other end of the second transmission rod passes through the inner wall of the support rod and extends to the outside of the wire feeding table. The surfaces of multiple first transmission rods and the surfaces of second transmission rods are fixedly connected to transmission gears, and the transmission gears on multiple first transmission rods are meshed with the transmission gears on the second transmission rods. The forming station includes a winding table and a sliding table. The winding table and the sliding table are slidably connected. A first servo motor is fixedly connected to the inner wall of the winding table. A material ejector is located on the left side of the first servo motor. The surface of the material ejector is slidably connected to the side wall of the winding table. A rotating rod is rotatably connected to the inner wall of the material ejector. The right end of the rotating rod is fixedly connected to the output end of the first servo motor. A cylinder is fixedly connected to the inner wall of the winding table. The cylinder is located below the first servo motor. A piston push rod is slidably connected to the inner wall of the cylinder. The left end of the piston push rod is fixedly connected to the right end of the material ejector. A first spring is fixedly connected to the right end of the piston push rod. The other end of the first spring is fixedly connected to the inner wall of the cylinder. A square rod is located below the material ejector. The left end of the square rod passes through the side wall of the winding table and extends to the outside of the winding table. The square rod is fixedly connected to the winding table. The inner wall of the square rod is slidably connected to... The cylinder is connected to a top head, and a second spring is fixedly connected below the top head. The other end of the second spring is fixedly connected to the inner wall of the square rod. Two first air outlet pipes are fixedly connected to the surface of the cylinder. The other ends of the two first air outlet pipes penetrate the side wall of the winding table and extend to the outside of the winding table. The cylinder is connected to the outside through the two first air outlet pipes. Two air guide pipes are arranged between the two first air outlet pipes. One end of the two air guide pipes is connected to the cylinder. The other end of the two air guide pipes penetrates the inner wall of the square rod and extends to the bottom of the top head. The cylinder and the square rod are connected through the two air guide pipes. The first air outlet pipe and the air guide pipe on the right side are always located on the right side of the piston push rod. The first air outlet pipe and the air guide pipe on the left side are always located on the left side of the piston push rod. The inner diameter of the first air outlet pipe on the left side is the same as the inner diameter of the two air guide pipes, and both are smaller than the inner diameter of the first air outlet pipe on the right side. The grinding station includes two sets of symmetrically arranged grinding plate supports. The inner wall of each set of grinding plate supports is rotatably connected to two symmetrically arranged sleeve rollers. The surface of the two sleeve rollers is covered with the same grinding belt. A second electric push rod is fixedly connected to the side wall of the right grinding plate support. The other end of the second electric push rod is fixedly connected to the side wall of the left grinding plate support. The inner walls of the two sets of grinding plate supports are rotatably connected to the same spline shaft. The spline shaft and the two sleeve rollers are rotatably connected through two sets of symmetrically arranged first bevel gears. The material transfer station includes two sets of symmetrically arranged material transfer brackets, which are located between two sets of grinding plate brackets. A reduction motor is provided on the right side of each set of material transfer brackets. A rotating shaft is rotatably connected to the inner wall of each set of material transfer brackets. The right end of the rotating shaft on the left side passes through the side wall of the material transfer bracket and extends to the left side of the reduction motor. The right end of the rotating shaft on the left side is rotatably connected to the output end of the reduction motor through a set of indexing gears. Two symmetrically arranged first pulleys are fixedly connected to the surfaces of the two rotating shafts. Two symmetrically arranged first transmission belts are sleeved on the first pulleys of the two sets of material transfer brackets. Multiple material placement components are rotatably connected to the adjacent side walls of the two first transmission belts.

[0007] In a specific implementation, a wire guide nozzle is fixedly connected to the side wall of the wire feeding table. The wire guide nozzle is located on the right side of the wire clamping roller, and the axis of the wire guide nozzle is concentric with the axis of the roller groove of the wire clamping roller. Three third springs are fixedly connected to the inner wall of the wire guide nozzle, which are evenly distributed circumferentially. The other end of each of the three third springs is fixedly connected to a locking block. The other end of each of the three locking blocks penetrates the inner wall of the wire guide nozzle and extends into the interior of the wire guide nozzle.

[0008] In specific implementation, two sets of third transmission rods are rotatably connected to the inner wall of the wire feeding table. The adjacent ends of the two sets of third transmission rods are rotatably connected by a set of second bevel gears. The other ends of the two sets of third transmission rods pass through the side wall of the wire feeding table and extend to the outside of the wire feeding table. An eccentric disk is fixedly connected to the other end of the third transmission rod on the left side. A crank rocker is rotatably connected to the surface of the eccentric disk. A cutter is rotatably connected to the other end of the crank rocker. The cutter is slidably connected to the side wall of the wire feeding table, and the left end of the wire guide is located on the movement trajectory of the cutter. The other end of the third transmission rod on the right side and the other end of the second transmission rod are both fixedly connected to second pulleys. The surface of the two second pulleys is fitted with the same second transmission belt.

[0009] In specific implementation, an air pump is installed on the right side of the assembly line station. The air pump's outlet end is fixedly connected to the air inlet end of the guide nozzle with an air inlet pipe. The air outlet end of the guide nozzle is fixedly connected to a second air outlet pipe. The other end of the second air outlet pipe penetrates the upper surface of the forming station and extends to the inner wall of the cylinder. The other end of the second air outlet pipe is always located on the right side of the piston push rod. The air pump, guide nozzle, cylinder, and square rod are connected. The inner diameter of the air inlet pipe is the same as the inner diameter of the second air outlet pipe, and both are larger than the inner diameter of the first air outlet pipe located on the right side.

[0010] In specific implementation, the side wall of the slide table is slidably connected to two symmetrically arranged stops. The two stops are located on the movement trajectory of the other end of the two first air outlet pipes. The distance between the ends of the two stops is smaller than the distance between the ends of the other end of the two first air outlet pipes. The inner wall of the slide table is rotatably connected to a lead screw. The other end of the lead screw passes through the side wall of the slide table and extends outward. Two sets of second servo motors are arranged on the right side of the assembly line station. The output end of the second servo motor on the left is fixedly connected to the other end of the lead screw, and the output end of the second servo motor on the right is fixedly connected to the other end of the third transmission rod on the right.

[0011] In a specific implementation, the material placement assembly includes a transfer platform. Two sets of symmetrically arranged L-shaped rods are rotatably connected to the upper surface of the transfer platform. One end of each set of L-shaped rods is rotatably connected to the same material placement platform. The other end of each set of L-shaped rods is fixedly connected to a clamping block. A fourth spring is fixedly connected to the lower surface of the material placement platform. The other end of the fourth spring is fixedly connected to the upper surface of the transfer platform.

[0012] In a specific implementation, an internal spline is provided on the inner wall of the first bevel gear on the left side, and an external spline is provided on the surface of the spline shaft. The surfaces of the internal spline and the external spline are meshed and connected. A set of third pulleys is fixedly connected to the output end of the geared motor at the left end of the spline shaft, and the same third transmission belt is sleeved on the surface of the set of third pulleys.

[0013] In specific implementation, the indexing gear on the left is the driven gear, the indexing gear on the right is the driving gear, and the indexing gear on the right is an incomplete gear. Its working tooth segment is used to move the driven gear, and its non-working arc segment is used to achieve the stopping and locking of the driven gear.

[0014] In specific implementation, a winding rod is provided at the left end of the rotating rod. The rotating rod and the winding rod are connected by a snap fastener, which can be quickly installed or disassembled. A sliding groove is fixedly connected to the side wall of the slide table. A shaping rod is slidably connected to the inner wall of the sliding groove. A third electric push rod is fixedly connected to the inner wall of the sliding groove. The other end of the third electric push rod is fixedly connected to the side wall of the shaping rod. A shaping wheel is rotatably connected to the upper end of the shaping rod. The shaping wheel is located on the right side of the winding rod and is on the same horizontal plane as the winding rod.

[0015] The beneficial effects of this invention are as follows: This invention drives a slider via a first electric push rod, which, through a rotating plate linkage, causes multiple symmetrically arranged clamping rollers to move synchronously within an arc groove. This enables rapid, tool-free clamping of wires of different diameters. Simultaneously, the wire feeding power drives the cutter synchronously via a gear and belt transmission mechanism, ensuring precise linkage between the wire feeding length and the cutting action. This solves the problems of time-consuming mold changes and unstable length accuracy in traditional equipment, providing a reliable material supply foundation for continuous automated production. This invention achieves automated cycle of forming and unloading by designing an intelligent pneumatic system based on air pressure difference and mechanical blocks. During wire feeding, air pressure drives the mandrel to extend and fix the wire end. During winding, the system maintains the pressure difference to keep the unloading cylinder stationary. After cutting, the slide moves to block the exhaust port in sequence, thereby changing the pressure difference between the two chambers of the cylinder. This triggers the mandrel to reset and release the spring, and causes the piston push rod to push the unloading cylinder out of the spring. The entire process does not require complex sensors, and the actions are smooth and precise, greatly improving the forming and unloading efficiency and reliability. This invention achieves flexible and efficient connection between workstations by combining an adjustable-spacing grinding station with a material placement component that operates using the weight of springs. The second electric push rod can adjust the spacing between the two grinding belts to accommodate springs of different lengths. The material transfer station uses incomplete gear indexing drive, which allows the material placement table to stop precisely between the receiving, grinding, and unloading positions. The material placement component cleverly utilizes the weight of springs to achieve self-locking and release. Therefore, the entire system works smoothly and efficiently, completing a fully automated flow from forming to grinding and unloading. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a front view of the structure of the present invention; Figure 2 This is a side view of the structure of the present invention; Figure 3 This is a top view of the structure of the present invention; Figure 4 This is a structural perspective view of the workstation of the entire production line of the present invention; Figure 5 This is a cross-sectional view of the structure at the guide wire nozzle of the present invention; Figure 6 This is a schematic diagram of the internal structure of the molding station in this invention; Figure 7 This is a cross-sectional view of the internal structure at the molding station of the present invention; Figure 8 This is a side view of the structure at the grinding station of the present invention; Figure 9 This is a front view of the structure at the grinding station of the present invention; Figure 10 yes Figure 9 Enlarged structural diagram at point A; Figure 11 This is a schematic diagram of the structure at the material transfer station of the present invention; Figure 12 yes Figure 11 Enlarged structural diagram at point B; Component names in the diagram: 1. Assembly station; 101. Wire feeding table; 102. Arc groove; 103. First transmission rod; 104. Wire clamping roller; 105. Support rod; 106. Sliding sleeve; 107. Slider; 108. First electric push rod; 109. Turning plate; 110. Second transmission rod; 111. Transmission gear; 2. Forming station; 201. Winding table; 202. Sliding table; 203. First servo motor; 20 4. Unloading cylinder; 205. Rotating rod; 206. Cylinder; 207. Piston push rod; 208. First spring; 209. Square rod; 210. Top head; 211. Second spring; 212. First air outlet pipe; 213. Air guide pipe; 214. Stop block; 215. Lead screw; 216. Winding rod; 3. Grinding station; 301. Grinding plate support; 302. Sleeve roller; 303. Grinding belt; 304. Second electric push rod 305. Splined shaft; 306. First bevel gear; 4. Transfer station; 401. Transfer bracket; 402. Gear motor; 403. Rotating shaft; 404. Indexing gear; 405. First pulley; 406. First transmission belt; 5. Wire guide nozzle; 6. Third spring; 7. Clamping block; 8. Third transmission rod; 9. Second bevel gear; 10. Eccentric disc; 11. Crank rocker arm; 12. Cutting blade; 13. Second belt 14. Second transmission belt; 15. Air pump; 16. Air inlet pipe; 17. Second air outlet pipe; 18. Second servo motor; 19. Transfer table; 20. L-shaped rod; 21. Material placement table; 22. Clamping block; 23. Fourth spring; 24. Internal spline; 25. External spline; 26. Third pulley; 27. Third transmission belt; 28. Slide groove; 29. ​​Shaping rod; 30. Third electric push rod; 31. Shaping wheel. Detailed Implementation

[0017] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention. Example

[0018] A high-efficiency spring processing device with multi-station switching function, please refer to [link / reference]. Figures 1 to 12 The design includes a production line station 1, a forming station 2, a grinding station 3, and a material transfer station 4. The production line station 1 includes a wire feeding table 101. The side wall of the wire feeding table 101 has an arc groove 102. The inner wall of the arc groove 102 is rotatably connected to a plurality of symmetrically arranged first transmission rods 103. One end of each of the plurality of first transmission rods 103 is fixedly connected to a wire clamping roller 104. The inner wall of the wire feeding table 101 is fixedly connected to a support rod 105. The side wall of the support rod 105 is slidably connected to two symmetrically arranged sliding sleeves 106. The inner wall of the support rod 105 is slidably connected to a slider 107. The lower surface of the slider 107 is fixedly connected to a first electric push rod 108. The lower end of the electric push rod 108 is fixedly connected to the inner bottom surface of the wire feeding table 101. The other ends of the plurality of first transmission rods 103 and the side wall of the slider 107 are respectively rotatably connected to the side wall of the adjacent sliding sleeve 106 through the rotating plate 109. The inner wall of the wire feeding table 101 is rotatably connected to the second transmission rod 110. The other end of the second transmission rod 110 passes through the inner wall of the support rod 105 and extends to the outside of the wire feeding table 101. The surfaces of the plurality of first transmission rods 103 and the surfaces of the second transmission rods 110 are fixedly connected to the transmission gears 111, and the transmission gears 111 on the plurality of first transmission rods 103 are meshed with the transmission gears 111 on the second transmission rods 110. The forming station 2 includes a winding table 201 and a slide table 202. The winding table 201 and the slide table 202 are slidably engaged. A first servo motor 203 is fixedly connected to the inner wall of the winding table 201. A material ejector cylinder 204 is provided on the left side of the first servo motor 203. The surface of the material ejector cylinder 204 is slidably connected to the side wall of the winding table 201. A rotating rod 205 is rotatably connected to the inner wall of the material ejector cylinder 204. The right end of the rotating rod 205 is fixedly connected to the output end of the first servo motor 203. A cylinder 206 is fixedly connected to the inner wall of the winding table 201. Below the first servo motor 203, a piston push rod 207 is slidably connected to the inner wall of the cylinder 206. The left end of the piston push rod 207 is fixedly connected to the right end of the unloading cylinder 204. A first spring 208 is fixedly connected to the right end of the piston push rod 207. The other end of the first spring 208 is fixedly connected to the inner wall of the cylinder 206. A square rod 209 is provided below the unloading cylinder 204. The left end of the square rod 209 penetrates the side wall of the winding table 201 and extends to the outside of the winding table 201. The square rod 209 is fixedly connected to the winding table 201. A top head 210 is slidably connected to the inner wall. A second spring 211 is fixedly connected below the top head 210. The other end of the second spring 211 is fixedly connected to the inner wall of the square rod 209. Two first air outlet pipes 212 are fixedly connected to the surface of the cylinder 206. The other ends of the two first air outlet pipes 212 penetrate the side wall of the winding table 201 and extend to the outside of the winding table 201. The cylinder 206 is connected to the outside through the two first air outlet pipes 212. Two air guide pipes 213 are arranged between the two first air outlet pipes 212. One of the two air guide pipes 213... Both ends are connected to the cylinder 206. The other ends of the two air guide pipes 213 penetrate the inner wall of the square rod 209 and extend to the bottom of the top head 210. The cylinder 206 and the square rod 209 are connected through the two air guide pipes 213. The first air outlet pipe 212 and the air guide pipe 213 located on the right side are always located on the right side of the piston push rod 207. The first air outlet pipe 212 and the air guide pipe 213 located on the left side are always located on the left side of the piston push rod 207. The inner diameter of the first air outlet pipe 212 located on the left side is the same as the inner diameter of the two air guide pipes 213, and both are smaller than the inner diameter of the first air outlet pipe 212 on the right side. The grinding station 3 includes two sets of symmetrically arranged grinding plate supports 301. The inner wall of each set of grinding plate supports 301 is rotatably connected to two symmetrically arranged sleeve rollers 302. The surface of the two sleeve rollers 302 is fitted with the same grinding belt 303. The side wall of the grinding plate support 301 on the right side is fixedly connected to a second electric push rod 304. The other end of the second electric push rod 304 is fixedly connected to the side wall of the grinding plate support 301 on the left side. The inner walls of the two sets of grinding plate supports 301 are rotatably connected to the same spline shaft 305. The spline shaft 305 and the two sleeve rollers 302 are rotatably connected through two sets of symmetrically arranged first bevel gears 306. The material transfer station 4 includes two sets of symmetrically arranged material transfer brackets 401, which are located between two sets of grinding plate brackets 301. A reduction motor 402 is arranged on the right side of each set of material transfer brackets 401. A rotating shaft 403 is rotatably connected to the inner wall of each set of material transfer brackets 401. The right end of the rotating shaft 403 on the left side passes through the side wall of the material transfer bracket 401 and extends to the left side of the reduction motor 402. The right end of the rotating shaft 403 on the left side is rotatably connected to the output end of the reduction motor 402 through a set of indexing gears 404. Two symmetrically arranged first pulleys 405 are fixedly connected to the surfaces of the two rotating shafts 403. Two symmetrically arranged first transmission belts 406 are sleeved on the first pulleys 405 on the two sets of material transfer brackets 401. Multiple material placement components are rotatably connected to the adjacent side walls of the two first transmission belts 406.

[0019] A wire guide nozzle 5 is fixedly connected to the side wall of the wire feeding table 101. The wire guide nozzle 5 is located on the right side of the wire clamping roller 104, and the axis of the wire guide nozzle 5 is concentric with the axis of the roller groove of the wire clamping roller 104. Three third springs 6 are fixedly connected to the inner wall of the wire guide nozzle 5, which are evenly distributed circumferentially. The other end of each of the three third springs 6 is fixedly connected to a locking block 7. The other end of each of the three locking blocks 7 penetrates the inner wall of the wire guide nozzle 5 and extends into the interior of the wire guide nozzle 5. Through the third springs 6 and locking blocks 7 distributed circumferentially inside the wire guide nozzle 5, the locking blocks 7 clamp the wire when the air pump 15 supplies air, and the springs assist in resetting to prevent falling off. This method can adapt to wires of different diameters, ensure stable wire feeding, and improve processing accuracy.

[0020] Two sets of third transmission rods 8 are rotatably connected to the inner wall of the wire feeding table 101. The adjacent ends of the two sets of third transmission rods 8 are rotatably connected via a set of second bevel gears 9. The other ends of both sets of third transmission rods 8 penetrate the side wall of the wire feeding table 101 and extend to the outside of the wire feeding table 101. An eccentric disk 10 is fixedly connected to the other end of the third transmission rod 8 on the left side. A crank rocker arm 11 is rotatably connected to the surface of the eccentric disk 10. A cutter 12 is rotatably connected to the other end of the crank rocker arm 11. The cutter 12 is slidably connected to the side wall of the wire feeding table 101, and the guide wire... The left end of the nozzle 5 is located on the movement trajectory of the cutter 12. The other end of the third transmission rod 8 on the right side and the other end of the second transmission rod 110 are both fixedly connected to the second pulley 13. The surface of the two second pulleys 13 is fitted with the same second transmission belt 14. By designing a set of second bevel gears 9 to link the two sets of third transmission rods 8, one end of the two sets of third transmission rods 8 drives the cutter 12 to cut, and the other end is linked to the second transmission rod 110 through a set of second pulleys 13. This realizes that wire feeding and cutting are carried out simultaneously, which not only avoids wire waste, but also improves the continuity of the process.

[0021] An air pump 15 is installed on the right side of the assembly line station 1. The air outlet of the air pump 15 is fixedly connected to the air inlet of the guide nozzle 5 by an air inlet pipe 16. The air outlet of the guide nozzle 5 is fixedly connected to a second air outlet pipe 17. The other end of the second air outlet pipe 17 penetrates the upper surface of the forming station 2 and extends to the inner wall of the cylinder 206. The other end of the second air outlet pipe 17 is always located on the right side of the piston push rod 207. The air pump 15, the guide nozzle 5, the cylinder 206 and the square rod 209 are connected. The inner diameter of the air inlet pipe 16 is the same as the inner diameter of the second air outlet pipe 17, and both are larger than the inner diameter of the first air outlet pipe 212 located on the right side. By designing the air pump 15 to be supplied with air by the air inlet pipe 16, the guide nozzle 5 and the second air outlet pipe 17 with specific inner diameters, sufficient airflow is ensured on the right side of the cylinder 206, a stable pressure difference is achieved, the material ejection and the movement of the mandrel 210 are accurate, and the forming reliability is improved.

[0022] The slide table 202 has two symmetrically arranged stop blocks 214 slidably connected to its side wall. The two stop blocks 214 are located on the movement trajectory of the other end of the two first air outlet pipes 212. The distance between the ends of the two stop blocks 214 is smaller than the distance between the ends of the other end of the two first air outlet pipes 212. The inner wall of the slide table 202 is rotatably connected to a lead screw 215. The other end of the lead screw 215 passes through the side wall of the slide table 202 and extends outward. Two sets of second servo motors 18 are arranged on the right side of the assembly line station 1. The output end of the second servo motor 18 on the left is fixedly connected to the other end of the lead screw 215. The output end of the second servo motor 18 on the right is fixedly connected to the other end of the third transmission rod 8 on the right. The slide table 202 and the stop blocks 214 restrict the movement of the first air outlet pipes 212. The second servo motor 18 on the right drives the lead screw 215 to adjust the position of the slide table 202, which can be adapted to spring forming of different processing lengths.

[0023] The material placement assembly includes a transfer platform 19. Two sets of symmetrically arranged L-shaped rods 20 are rotatably connected to the upper surface of the transfer platform 19. One end of each set of L-shaped rods 20 is rotatably connected to the same material placement platform 21. The other end of each set of L-shaped rods 20 is fixedly connected to a clamping block 22. A fourth spring 23 is fixedly connected to the lower surface of the material placement platform 21. The other end of the fourth spring 23 is fixedly connected to the upper surface of the transfer platform 19. The fourth spring 23 supports the material placement platform 21. The weight of the spring causes the material placement platform 21 to press down, causing the L-shaped rods 20 and the clamping block 22 to clamp the spring. The structure is simple and practical, ensuring that the spring remains stable and does not fall off during the material transfer and grinding process.

[0024] An internal spline 24 is provided on the inner wall of the first bevel gear 306 located on the left side, and an external spline 25 is provided on the surface of the spline shaft 305. The surfaces of the internal spline 24 and the external spline 25 are meshed and connected. A set of third pulleys 26 is fixedly connected to the output end of the geared motor 402 at the left end of the spline shaft 305. The same third transmission belt 27 is sleeved on the surface of the set of third pulleys 26. Power is transmitted through the meshing of the internal spline 24 and the external spline 25. The spacing of the grinding plate support 302 is adjusted in conjunction with the second electric push rod 304, which ensures the continuous and stable rotation of the grinding belt 303, reduces the power source, simplifies the structure, and improves reliability.

[0025] The indexing gear 404 on the left is the driven gear, and the indexing gear 404 on the right is the driving gear. The indexing gear 404 on the right is an incomplete gear. Its working tooth section is used to move the driven gear, and its non-working arc section is used to stop and lock the driven gear. By using the incomplete driving indexing gear 404, the working tooth section drives the material to rotate, and the non-working arc section locks it, so that the material placement component stops precisely at the station connection, ensuring accurate alignment of the spring transfer.

[0026] A winding rod 216 is provided at the left end of the rotating rod 205. The rotating rod 205 and the winding rod 216 are connected by a snap-fit, which can be quickly installed or disassembled. A sliding groove 28 is fixedly connected to the side wall of the slide table 202. A shaping rod 29 is slidably connected to the inner wall of the sliding groove 28. A third electric push rod 30 is fixedly connected to the inner wall of the sliding groove 28. The other end of the third electric push rod 30 is fixedly connected to the side wall of the shaping rod 29. A shaping wheel 31 is rotatably connected to the upper end of the shaping rod 29. The shaping wheel 31 is located to the right of the winding rod 216 and is on the same horizontal plane as the winding rod 216. The snap-fit ​​connection between the rotating rod 205 and the winding rod 216 facilitates disassembly and replacement. The third electric push rod 30 drives the shaping wheel 31 to adapt to different specifications of wire and assist in processing and forming, thereby improving the device's adaptability to processing springs of different specifications and the forming quality.

[0027] During operation, the first electric push rod 108 pulls the slider 107, causing the two sliding sleeves 106 to move in opposite directions simultaneously with the rotation of the rotating plate 109. This drives the wire clamping rollers 104 to slide within the arc grooves 102. Because the four wire clamping rollers 104 are symmetrical in all directions within the two arc grooves 102, different sizes of wires can be matched without manual replacement of parts. The guide nozzle 5, due to the air pump 15 pumping air to push the locking block 7 downwards, can also accommodate different sizes of wires (the third spring 6 resets the locking block 7 and prevents it from falling off). When the wire moves through the guide nozzle 5 between the top head 210 and the winding rod 216 (driven by the first servo motor 203), the wire blocks the air outlet of the top head 210, and the air pump 15... The airflow enters the piston rod 207 in cylinder 206 from the guide wire nozzle 5 via the second exhaust pipe 17. Part of the airflow is released to the outside through the first exhaust pipe 212 on the right side, and part enters the square rod 209 through the guide pipe 213 on the right side, then flows into the left side of the piston rod 207 (because the exhaust port of the top head 210 is blocked by the wire, this part of the airflow pushes the top head 210 out of the square rod 209, jamming the wire). The airflow returning to the left side of the piston rod 207 is then released to the outside through the first exhaust pipe 212 on the left side. At this time, the stop block 214 on the left side blocks the first exhaust pipe 212 on the left side, while the stop block 214 on the right side does not block the first exhaust pipe 212 on the right side (stop block 214). The spacing between the two first air outlet pipes 212 is less than the spacing between the two first air outlet pipes 212. Furthermore, the inner diameter of the second air outlet pipe 17 is greater than the inner diameter of the first air outlet pipe 212 on the right side, and greater than the inner diameter of the first air outlet pipe 212 on the left side (equal to the inner diameter of the two guide pipes 213). Therefore, the pressure on the left side of the piston push rod 207 is greater than the pressure on the right side. The ejector cylinder 204 remains stationary, and the top head 210 fixes the wire and generates a spring as the winding rod 216 rotates and the slide table 202 moves. During spring processing, the third electric push rod 30 pushes the shaping rod 29 and the shaping wheel 31 to adapt to different sizes of wire for winding and forming. After the spring is formed, the second servo motor 18 on the right side drives the third transmission rod 8 on the left side to rotate via the second bevel gear set 9. The third transmission rod 8 on the left drives the eccentric disk 10 to rotate. The eccentric disk 10 drives the cutter 12 to slide through the crank rocker arm 11, cutting off the subsequent wire and the formed spring. Then, the winding table 201 moves to the position where the first air outlet 212 on the right is blocked by the stop block 214 on the right, and the first air outlet 212 on the left is not blocked by the stop block 214 on the left (the air pressure in the square rod 209 decreases as the first air outlet 212 on the left is released, and the top head 210 descends to release the spring under the restoring force of the second spring 211). At this time, the pressure on the right side of the piston push rod 207 in the cylinder 206 is greater than the pressure on the left side. The piston push rod 207 drives the unloading cylinder 204 to push the spring outward to the winding rod 216.As the forming station 2 slides along the slide table 202, the stop block 214 on the right side no longer obstructs the first air outlet pipe 212 on the right side. The piston push rod 207 resets under the elastic force of the first spring 208. The second servo motor 18 on the left side drives the lead screw 215, the slide table 202, and the forming station 2 to repeat the above process, thus continuously generating spring parts. It is practical and smooth, with high processing efficiency and precision. At the material transfer station 4 on the side of the forming station 2, due to the design of the indexing gear 404 and the first transmission belt 406, the formed spring is sent by the ejector cylinder 204 to the material placement platform 21 of the material placement assembly. The material placement platform 21 moves down by the weight of the spring, simultaneously driving two sets of symmetrical L-shaped rods 20 and clamping blocks 22 to limit the spring. After the spring is limited, it moves with the first transmission belt 406 to the two sets of grinding belts. Between points 303, both ends of the spring are ground, completing the spring processing. The spring then leaves the grinding station 3 along with the first transmission belt 406. When it moves to the position of the first pulley 405 on the right, the material placement assembly flips, changing the spring's center of gravity. Under the restoring force of the fourth spring 23, the two sets of L-shaped rods 20 and clamping blocks 22 release the spring, and it falls into the collection box. Because the specifications of the processed spring may change, the spacing between the two sets of grinding belts 303 must be adapted accordingly. The spacing of the grinding belts 303 is adjusted by the second electric push rod 304. The design of the inner spline 24 and outer spline 25 allows the first bevel gear set 306 on the left to slide on the spline shaft 305 while rotating along with the movement of the grinding belt 303, ensuring continuous power, reducing the power source, and making the overall structure simpler, more reasonable, and more practical.

[0028] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency spring processing device with multi-station switching function, comprising a production line station (1), a forming station (2), a grinding station (3), and a material transfer station (4), characterized in that: The assembly line station (1) includes a wire feeding table (101). The side wall of the wire feeding table (101) is provided with an arc groove (102). The inner wall of the arc groove (102) is rotatably connected to a plurality of symmetrically arranged first transmission rods (103). One end of each of the plurality of first transmission rods (103) is fixedly connected to a wire clamping roller (104). The inner wall of the wire feeding table (101) is fixedly connected to a support rod (105). The side wall of the support rod (105) is slidably connected to two symmetrically arranged sliding sleeves (106). The inner wall of the support rod (105) is slidably connected to a slider (107). The lower surface of the slider (107) is fixedly connected to a first electric push rod (108). The lower end of the first electric push rod (108) is connected to the wire feeding table. The inner bottom surface of (101) is fixedly connected, and the other ends of the multiple first transmission rods (103) and the side wall of the slider (107) are respectively rotatably connected to the side wall of the adjacent sliding sleeve (106) through the rotating plate (109). The inner wall of the wire feeding table (101) is rotatably connected to the second transmission rod (110). The other end of the second transmission rod (110) passes through the inner wall of the support rod (105) and extends to the outside of the wire feeding table (101). The surfaces of the multiple first transmission rods (103) and the surfaces of the second transmission rods (110) are fixedly connected to the transmission gears (111), and the transmission gears (111) on the multiple first transmission rods (103) are meshed with the transmission gears (111) on the second transmission rods (110). The forming station (2) includes a winding table (201) and a slide table (202). The winding table (201) and the slide table (202) are slidably connected. A first servo motor (203) is fixedly connected to the inner wall of the winding table (201). A material ejector cylinder (204) is provided on the left side of the first servo motor (203). The surface of the material ejector cylinder (204) is slidably connected to the side wall of the winding table (201). A rotating rod (205) is rotatably connected to the inner wall of the material ejector cylinder (204). The right end of the rotating rod (205) is fixedly connected to the output end of the first servo motor (203). A cylinder (206) is fixedly connected to the inner wall of the winding table (201). 6) Located below the first servo motor (203), a piston push rod (207) is slidably connected to the inner wall of the cylinder (206). The left end of the piston push rod (207) is fixedly connected to the right end of the ejector cylinder (204). A first spring (208) is fixedly connected to the right end of the piston push rod (207). The other end of the first spring (208) is fixedly connected to the inner wall of the cylinder (206). A square rod (209) is provided below the ejector cylinder (204). The left end of the square rod (209) passes through the side wall of the winding table (201) and extends to the outside of the winding table (201). The square rod (209) is fixedly connected to the winding table (201). The inner wall of the cylinder (209) is slidably connected to a top head (210). A second spring (211) is fixedly connected below the top head (210). The other end of the second spring (211) is fixedly connected to the inner wall of the square rod (209). Two first air outlet pipes (212) are fixedly connected to the surface of the cylinder (206). The other ends of the two first air outlet pipes (212) penetrate the side wall of the winding table (201) and extend to the outside of the winding table (201). The cylinder (206) is connected to the outside through the two first air outlet pipes (212). Two air guide pipes (213) are arranged between the two first air outlet pipes (212). One end of each of the two air guide pipes (213) is connected to the cylinder (206), and the other end of each of the two air guide pipes (213) passes through the inner wall of the square rod (209) and extends to the bottom of the top head (210). The cylinder (206) and the square rod (209) are connected through the two air guide pipes (213). The first air outlet pipe (212) and the air guide pipe (213) located on the right side are always located on the right side of the piston push rod (207), and the first air outlet pipe (212) and the air guide pipe (213) located on the left side are always located on the left side of the piston push rod (207). The inner diameter of the first air outlet pipe (212) located on the left side is the same as the inner diameter of the two air guide pipes (213), and both are smaller than the inner diameter of the first air outlet pipe (212) on the right side. The grinding station (3) includes two sets of symmetrically arranged grinding plate supports (301). The inner wall of each set of grinding plate supports (301) is rotatably connected to two symmetrically arranged sleeve rollers (302). The surface of the two sleeve rollers (302) is covered with the same grinding belt (303). The side wall of the grinding plate support (301) on the right side is fixedly connected to a second electric push rod (304). The other end of the second electric push rod (304) is fixedly connected to the side wall of the grinding plate support (301) on the left side. The inner walls of the two sets of grinding plate supports (301) are rotatably connected to the same spline shaft (305). The spline shaft (305) and the two sleeve rollers (302) are rotatably connected through two sets of symmetrically arranged first bevel gears (306). The material transfer station (4) includes two sets of symmetrically arranged material transfer brackets (401). The two sets of material transfer brackets (401) are located between two sets of grinding plate brackets (301). A reduction motor (402) is provided on the right side of the two sets of material transfer brackets (401). A rotating shaft (403) is rotatably connected to the inner wall of each set of material transfer brackets (401). The right end of the rotating shaft (403) on the left side passes through the side wall of the material transfer bracket (401) and extends to the left side of the reduction motor (402). The right end of the rotating shaft (403) on the left side is rotatably connected to the output end of the reduction motor (402) through a set of indexing gears (404). Two symmetrically arranged first pulleys (405) are fixedly connected to the surfaces of the two rotating shafts (403). Two symmetrically arranged first transmission belts (406) are sleeved on the first pulleys (405) on the two sets of material transfer brackets (401). Multiple material placement components are rotatably connected to the adjacent side walls of the two first transmission belts (406).

2. The high-efficiency spring processing device with multi-station switching function as described in claim 1, characterized in that: The wire feeding table (101) has a wire guide nozzle (5) fixedly connected to its side wall. The wire guide nozzle (5) is located on the right side of the wire clamping roller (104), and the axis of the wire guide nozzle (5) is concentric with the axis of the roller groove of the wire clamping roller (104). The inner wall of the wire guide nozzle (5) is fixedly connected to three third springs (6) evenly distributed in the circumferential direction. The other end of each of the three third springs (6) is fixedly connected to a locking block (7). The other end of each of the three locking blocks (7) penetrates the inner wall of the wire guide nozzle (5) and extends into the interior of the wire guide nozzle (5).

3. The high-efficiency spring processing device with multi-station switching function as described in claim 2, characterized in that: The inner wall of the wire feeding table (101) is rotatably connected to two sets of third transmission rods (8). The two sets of third transmission rods (8) are rotatably connected at one end by a set of second bevel gears (9). The other ends of the two sets of third transmission rods (8) pass through the side wall of the wire feeding table (101) and extend to the outside of the wire feeding table (101). The other end of the third transmission rod (8) on the left side is fixedly connected to an eccentric disk (10). The surface of the eccentric disk (10) is rotatably connected to a crank rocker arm (11). The other end of the crank rocker arm (11) is rotatably connected to a cutter (12). The cutter (12) is slidably connected to the side wall of the wire feeding table (101). The left end of the wire guide (5) is located on the movement trajectory of the cutter (12). The other end of the third transmission rod (8) on the right side and the other end of the second transmission rod (110) are both fixedly connected to second pulleys (13). The surfaces of the two second pulleys (13) are fitted with the same second transmission belt (14).

4. The high-efficiency spring processing device with multi-station switching function as described in claim 1, characterized in that: An air pump (15) is provided on the right side of the assembly line station (1). The air outlet of the air pump (15) is fixedly connected to the air inlet of the guide nozzle (5) via an air inlet pipe (16). The air outlet of the guide nozzle (5) is fixedly connected to a second air outlet pipe (17). The other end of the second air outlet pipe (17) passes through the upper surface of the forming station (2) and extends to the inner wall of the cylinder (206). The other end of the second air outlet pipe (17) is always located on the right side of the piston push rod (207). The air pump (15), the guide nozzle (5), the cylinder (206), and the square rod (209) are connected. The inner diameter of the air inlet pipe (16) is the same as the inner diameter of the second air outlet pipe (17), and both are larger than the inner diameter of the first air outlet pipe (212) located on the right side.

5. The high-efficiency spring processing device with multi-station switching function as described in claim 1, characterized in that: The slide (202) has two symmetrically arranged stops (214) slidably connected to its side wall. The two stops (214) are located on the movement trajectory of the other end of the two first air outlet pipes (212). The distance between the ends of the two stops (214) is smaller than the distance between the ends of the other end of the two first air outlet pipes (212). The inner wall of the slide (202) is rotatably connected to a lead screw (215). The other end of the lead screw (215) passes through the side wall of the slide (202) and extends outward. Two sets of second servo motors (18) are arranged on the right side of the assembly line station (1). The output end of the second servo motor (18) on the left side is fixedly connected to the other end of the lead screw (215). The output end of the second servo motor (18) on the right side is fixedly connected to the other end of the third transmission rod (8) on the right side.

6. The high-efficiency spring processing device with multi-station switching function as described in claim 1, characterized in that: The material placement assembly includes a transfer platform (19), on the upper surface of which two sets of symmetrically arranged L-shaped rods (20) are rotatably connected. One end of each set of L-shaped rods (20) is rotatably connected to the same material placement platform (21), and the other end of each set of L-shaped rods (20) is fixedly connected to a clamping block (22). A fourth spring (23) is fixedly connected to the lower surface of the material placement platform (21), and the other end of the fourth spring (23) is fixedly connected to the upper surface of the transfer platform (19).

7. The high-efficiency spring processing device with multi-station switching function as described in claim 1, characterized in that: An internal spline (24) is provided on the inner wall of the first bevel gear (306) located on the left side, and an external spline (25) is provided on the surface of the spline shaft (305). The surface of the internal spline (24) meshes with the surface of the external spline (25). A set of third pulleys (26) is fixedly connected to the output end of the geared motor (402) at the left end of the spline shaft (305). The same third transmission belt (27) is sleeved on the surface of the set of third pulleys (26).

8. The high-efficiency spring processing device with multi-station switching function as described in claim 1, characterized in that: The indexing gear (404) on the left is the driven gear, and the indexing gear (404) on the right is the driving gear. The indexing gear (404) on the right is an incomplete gear. Its working tooth segment is used to move the driven gear, and its non-working arc segment is used to achieve a stop and lock of the driven gear.

9. The high-efficiency spring processing device with multi-station switching function as described in claim 1, characterized in that: The left end of the rotating rod (205) is provided with a winding rod (216). The rotating rod (205) and the winding rod (216) are connected by a snap fastener, which can be quickly installed or disassembled. The side wall of the slide table (202) is fixedly connected with a slide groove (28). The inner wall of the slide groove (28) is slidably connected with a shaping rod (29). The inner wall of the slide groove (28) is fixedly connected with a third electric push rod (30). The other end of the third electric push rod (30) is fixedly connected to the side wall of the shaping rod (29). The upper end of the shaping rod (29) is rotatably connected with a shaping wheel (31). The shaping wheel (31) is located on the right side of the winding rod (216) and is on the same horizontal plane as the winding rod (216).

Images