A stamping material supporting device of a stamping die

Abstract

The application relates to the technical field of stamping equipment, in particular to a stamping piece material supporting device of a stamping die, which comprises a die support, the upper end of the die support is provided with a lower die used for machining a machining piece, characterized in that the inside of the lower die and the position close to the upper end are provided with a material supporting mechanism, the material supporting mechanism is provided, relies on the buffering structure of the material supporting spring and the first displacement sleeve, cooperates with the outer supporting plate and the inner supporting plate which are opened and closed in a scissor type, and the machining piece is flexibly received in the loading stage through the inclined supporting surface, so that the hard contact between the workpiece and the end surface of the lower die is avoided, the probability of the surface scratch and accidental deformation of the workpiece is reduced, the workpiece and the lower die are completely attached during the stamping die closing process, the forming precision is ensured, the workpiece can be automatically pried up after the stamping is completed through the cooperation of the internal transmission structure to complete the unloading, the flexible supporting and the orderly flow of the workpiece are realized in the whole process, and the surface quality and the processing yield of the machining piece are effectively improved.

Description

Technical Field

[0001] This application relates to the field of stamping equipment technology, specifically to a stamping part support device for a stamping die. Background Technology

[0002] Stamping presses are core process equipment for metal sheet forming and processing. Among them, step-type stamping dies, relying on a multi-station continuous transfer processing mode, can simultaneously complete multiple processes such as blanking, bending, stretching, and forming. They are widely used in the mass production of parts in fields such as electronic components, automotive hardware, and home appliance structural parts. In continuous stamping operations, the processed parts need to pass through each processing station sequentially along the feeding direction. Smooth transfer and precise positioning between stations are fundamental prerequisites for ensuring workpiece forming accuracy and maintaining a high-speed production cycle.

[0003] The material support mechanism is a key component inside the stamping die, typically embedded in the machining station of the lower die. Its core function is to vertically support the sheet metal during workpiece transfer, preventing direct friction between the lower surface of the workpiece and the working surface of the die, thus avoiding scratches. It also buffers the vertical load during the die closing process and coordinates with the die opening cycle to lift, unload, and transfer the workpiece to the workstation. A stable material support mechanism effectively reduces the surface damage rate of the workpiece, improves the reliability of continuous stamping operation, and is an important component in ensuring the quality of processed parts and production efficiency.

[0004] Regarding the aforementioned technologies, existing stamping material support mechanisms mostly employ fixed support blocks or simple elastic ejector structures, which lack sufficient support flexibility. During the feeding stage, the end of the workpiece is prone to hard impact with the end face of the support, causing edge dents and surface scratches, making it difficult to meet the processing requirements of high-precision parts. At the same time, the unloading timing control capability is weak, and the unloading ejection action is often triggered synchronously with the elastic rebound of the support structure, which can easily lead to the workpiece being ejected before the upper die has fully retracted, causing workpiece jamming and die dent damage. If additional drive control devices such as cylinders and solenoid valves are configured, new problems such as complex structure, high manufacturing cost, and difficult debugging will arise. Summary of the Invention

[0005] To address the aforementioned shortcomings of existing technologies, this application provides a stamping part support device for a stamping die, comprising a die support, wherein the upper end of the die support is provided with a lower die for processing the workpiece, characterized in that a support mechanism is provided inside the lower die near its upper end, the support mechanism including a support spring fixed inside the lower die, a first displacement sleeve fixedly connected to the upper end of the support spring, a support plate assembly being provided inside the first displacement sleeve near its upper end, the support plate assembly including a connecting seat fixed inside the first displacement sleeve, an outer support plate rotatably connected to the upper end of the connecting seat, an inner support plate rotatably connected to the inner side of the outer support plate, a return spring fixedly connected to the lower end of the inner support plate near the connecting seat, one end of the return spring being fixedly connected to the lower end of the inner support plate, the other end of the return spring being fixedly connected to the inner sidewall of the first displacement sleeve, and a pull bar fixedly connected to the lower end of the inner support plate; A delay wheel assembly is provided inside the lower mold and near the pull bar. A ratchet overrunning clutch is provided on the outer side of the delay wheel assembly. The ratchet overrunning clutch includes a large gear that meshes with the delay wheel assembly. A small gear is provided on one side of the large gear. The small gear meshes unidirectionally with the inner ring of the large gear. A first toothed plate is meshed on the outer side of the small gear. The upper end of the first toothed plate is fixedly connected to the lower end of the first displacement sleeve. A guide roller is rotatably connected inside the lower mold and near the pull bar. The outer circumferential surface of the guide roller abuts against the surface of the pull bar.

[0006] Furthermore, the delay wheel assembly includes a contact gear meshing with the large gear, a delay torsion spring fixedly connected to one end face of the contact gear, a first drive gear fixedly connected to the end of the delay torsion spring away from the contact gear, and the first drive gear fixedly connected to the end of the pull bar away from the inner support plate.

[0007] Furthermore, an extension mounting bracket is fixedly connected to the lower end of the first displacement sleeve near the first drive gear. A one-way auxiliary buckle plate is rotatably connected to the lower end of the extension mounting bracket. The rotation range of the one-way auxiliary buckle plate is 0 degrees to 90 degrees. A rotating plate is rotatably connected to the inner side of the lower mold near the first drive gear. A one-way main buckle plate is fixedly connected to the upper end of the rotating plate near the one-way auxiliary buckle plate. The one-way auxiliary buckle plate abuts against and drives the one-way main buckle plate to move in one direction. A limit block is fixedly connected to the lower end of the rotating plate. The limit block can be engaged in the gap between the teeth of the first drive gear.

[0008] Furthermore, the first displacement sleeve is provided with a reset assembly inside. The reset assembly includes a first reset curved plate. The upper end of the first reset curved plate is fixedly connected to the lower end of the outer support plate and the end away from the reset spring. The lower end of the first reset curved plate is fixedly connected to the inner side wall of the first displacement sleeve. A secondary magnet is fixed on the surface of the first reset curved plate near the pull bar. A main magnet is fixed inside the first displacement sleeve near the secondary magnet. The magnetic poles of the main magnet and the secondary magnet are opposite to each other and are respectively located on both sides of the pull bar.

[0009] Furthermore, a wedge plate is provided on the outer side of the pull bar and near the secondary magnet. The wedge plate can be inserted between the main magnet and the secondary magnet when the pull bar moves. A long slot is provided on the pull bar near the wedge plate, and the main magnet and the secondary magnet can slide in the slot of the pull bar.

[0010] Furthermore, a correction component is provided inside the lower mold and near the first displacement sleeve. The correction component includes a second toothed plate fixed to the lower end of the outer support plate. The second toothed plate is fixedly installed at the lower end of the outer support plate and near the edge. An acceleration gear set is meshed with the lower end of the second toothed plate. The acceleration gear set includes two gears of different diameters that mesh with each other. The second toothed plate is meshed with the larger diameter gear of the acceleration gear set. A second drive gear is coaxially fixedly connected to the smaller diameter gear of the acceleration gear set. A third toothed plate is meshed with the outer side of the second drive gear. A displacement plate is fixedly connected to one end of the third toothed plate.

[0011] Furthermore, an adjusting rod is threadedly connected to one side surface of the displacement plate, and a knob is fixed to the end of the adjusting rod away from the support plate assembly. A guide rail is slidably connected to the displacement plate, and one end of the guide rail is rotatably connected to the end of the adjusting rod with the knob. A push plate is fixedly connected to the other end of the guide rail, and the push plate is rotatably connected to the adjusting rod. The push plate is located on the side of the displacement plate closer to the workpiece.

[0012] Furthermore, the lower mold is also equipped with an anti-collision component, which includes an independently set material support spring. The upper end of the material support spring is fixedly connected to a second displacement sleeve. The upper end of the second displacement sleeve is rotatably connected to a material support plate. The lower end of the material support plate and near the edge is provided with a second reset curved plate. The upper end of the second reset curved plate is fixedly connected to the lower end of the material support plate, and the lower end of the second reset curved plate is fixedly connected to the inner wall of the second displacement sleeve.

[0013] The technical solution provided in this application has the following advantages compared with the known prior art: 1. This application, by setting up a material support mechanism, relies on the buffer structure of the material support spring and the first displacement sleeve, and cooperates with the scissor-type opening and closing outer and inner support plates. During the feeding stage, the inclined support surface flexibly supports the processed parts, avoiding hard contact between the workpiece and the end face of the lower mold, reducing the probability of workpiece surface scratches and accidental deformation. During the stamping and mold closing process, it moves smoothly downward with the load, ensuring that the workpiece and the lower mold are completely fitted to ensure forming accuracy. After stamping, it can cooperate with the internal transmission structure to automatically pry up the workpiece to complete the unloading. The entire process realizes the flexible support and orderly flow of the workpiece, effectively improving the surface quality and processing yield of the processed parts.

[0014] 2. This application, by setting a delay wheel group and cooperating with the one-way transmission characteristics of the ratchet overrunning clutch, does not intervene in power transmission during the downward stamping stage. Only during the return stroke of the upper die and the rise of the first displacement sleeve, the contact gear torsion delay spring accumulates elastic force. At the same time, relying on the locking structure of the one-way main and auxiliary buckles and the limit block, the spring potential energy is released after the first displacement sleeve rises to the set position, delaying the drive bar to perform the unloading action. This ensures that the upper die is completely retracted before material is discharged, avoiding motion interference between the die and the workpiece, and ensuring the timing accuracy and operational reliability of the unloading action.

[0015] 3. This application uses a correction component to take the displacement of the outer support plate as the power input. Through the stroke amplification transmission of the second toothed plate and the acceleration gear set, the small-angle rotation of the support plate is converted into a large-stroke lateral feed of the third toothed plate and the push plate. During the workpiece feeding and positioning process, lateral position correction is completed simultaneously, automatically correcting workpiece offset and reducing the risk of scrap due to stamping misalignment. At the same time, the extension distance of the push plate can be flexibly adjusted with the threaded adjustment rod to adapt to workpieces of different specifications and sizes, thereby improving the applicability and correction accuracy of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in the embodiments of this application; Figure 2 This is a schematic diagram of the lower mold in an embodiment of this application; Figure 3 This is a schematic diagram of the material feeding mechanism in an embodiment of this application; Figure 4 This is a schematic diagram of the internal structure of the first displacement sleeve of the device in the embodiments of this application; Figure 5 This is a schematic diagram of the tray assembly in an embodiment of this application; Figure 6 This is a schematic diagram of the ratchet overrunning clutch in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of the reset component in the embodiments of this application; Figure 8 This is a schematic diagram of the delay wheel assembly in an embodiment of this application; Figure 9 This is a schematic diagram of the unidirectional main buckle plate in an embodiment of this application; Figure 10 This is a schematic diagram of the structure of the correction component in the embodiments of this application; Figure 11 This is a schematic diagram of the anti-collision component in an embodiment of this application.

[0017] In the diagram: 1. Mold support; 11. Machining part; 2. Lower mold; 3. Material support mechanism; 31. First displacement sleeve; 32. Support plate assembly; 321. Connecting seat; 322. Outer support plate; 323. Inner support plate; 324. Reset spring; 33. Pull bar; 332. Guide roller; 34. Reset assembly; 341. First reset curved plate; 342. Main magnet; 343. Secondary magnet; 344. Wedge plate; 35. Ratchet overrunning clutch; 351. Pinion; 352. Large gear; 36. Delay wheel assembly; 361. First drive gear; 362. 363. Contact gear; 364. Delay torsion spring; 365. Extension mounting bracket; 366. One-way auxiliary buckle plate; 367. One-way main buckle plate; 368. Turning plate; 369. Limiting block; 300. First toothed plate; 31. Correction assembly; 32. Second toothed plate; 33. Acceleration gear set; 34. Second drive gear; 35. Third toothed plate; 360. Displacement plate; 37. Adjusting rod; 381. Guide rail; 382. Push plate; 39. Material support spring; 400. Anti-collision assembly; 41. Second displacement sleeve; 42. Second reset curved plate; 43. Material support plate. Detailed Implementation

[0018] To better understand the above technical solution, the following will refer to the appendix to the instruction manual. Figure 1-11 The specific implementation methods are described in detail for the above technical solutions.

[0019] refer to Figure 1 and Figure 2 This application discloses a stamping part support device for a stamping die, including a die support 1, a lower die 2, and a support mechanism 3 for supporting the workpiece 11. The lower die 2 is fixedly installed at the upper end of the die support 1 and near the center, and the support mechanism 3 is installed inside the lower die 2 and near the upper end. The workpiece 11 is placed at the upper end of the support mechanism 3.

[0020] When the stamping press of the step-type stamping die performs stamping processing on the workpiece 11, the workpiece 11 is displaced at the upper end of the lower die 2, and the workpiece 11 is supported by the material support mechanism 3, which reduces the direct contact between the lower die 2 and the workpiece 11 before stamping, thereby reducing the wear on the lower surface of the workpiece 11 and improving the yield of the workpiece 11.

[0021] refer to Figures 2 to 9The material support mechanism 3 includes a first displacement sleeve 31, a support plate assembly 32, a pull bar 33, a reset assembly 34, a ratchet overrunning clutch 35, a delay wheel set 36, a first toothed plate 37, a correction assembly 38, a material support spring 39, and an anti-collision assembly 4. The material support spring 39 is fixedly installed inside the lower mold 2 near its upper end. The material support spring 39 is a nitrogen spring to meet the requirements of the stamping equipment. The first displacement sleeve 31 is fixedly installed on the upper end of the material support spring 39 and is fixedly connected to the upper end of the material support spring 39. The support plate assembly 32 is installed on the upper end of the first displacement sleeve 31 near its center. The pull bar 33 is fixedly installed on the lower end of the support plate assembly 32 near its edge. The pull bar 33 is used to pull the support plate assembly 32, causing it to rotate. The guide roller 332 is rotatably installed inside the lower mold 2 near the pull bar 33 to limit the movement trajectory of the pull bar 33. The reset assembly 34 is installed inside the first displacement sleeve 31 and near the pull bar 33. The reset assembly 34 is used to restore the pallet assembly 32 to its state before it was pulled by the pull bar 33. The ratchet overrunning clutch 35 is installed inside the lower die 2 and near the first displacement sleeve 31. The correction assembly 38 is installed inside the lower die 2 and near the pallet assembly 32. The correction assembly 38 is used to limit the position of the workpiece 11 and reduce the degree of deviation of the workpiece 11 during stamping.

[0022] The ratchet overrunning clutch 35 includes a large gear 352 and a small gear 351. The small gear 351 is unidirectionally engaged with the inner ring of the large gear 352. When the small gear 351 rotates forward, the large gear 352 remains in its original state; when the small gear 351 rotates in reverse, the large gear 352 follows the small gear 351. The delay wheel assembly 36 is installed inside the lower mold 2 and close to the ratchet overrunning clutch 35.

[0023] The delay wheel assembly 36 includes a contact gear 362, a delay torsion spring 363, a first drive gear 361, an extension mounting bracket 364, a one-way auxiliary buckle plate 365, a one-way main buckle plate 366, a rotating plate 367, and a limiting block 368. The contact gear 362 meshes with the large gear 352. The delay torsion spring 363 is fixedly mounted on one side surface of the contact gear 362. The first drive gear 361 is fixedly mounted on the end of the delay torsion spring 363 away from the contact gear 362. The first drive gear 361 is fixedly connected to the end of the pull bar 33 away from the support plate assembly 32. The first toothed plate 37 is fixedly mounted on the lower end of the first displacement sleeve 31 and near the pinion 351. The first toothed plate 37 meshes with the pinion 351, and the displacement of the first toothed plate 37 will drive the pinion 351 to rotate. When the first toothed plate 37 moves downward following the first displacement sleeve 31, the pinion 351 rotates clockwise with the displacement of the first toothed plate 37. At this time, the clockwise rotation of the pinion 351 does not interfere with the rotation of the large gear 352, and the large gear 352 does not rotate with the clockwise rotation of the pinion 351. When the first toothed plate 37 moves upward following the first displacement sleeve 31, the pinion 351 rotates counterclockwise with the displacement of the first toothed plate 37. At this time, the counterclockwise rotation of the pinion 351 will drive the large gear 352 to rotate synchronously. The extension mounting bracket 364 is fixedly installed at the lower end of the first displacement sleeve 31, and the one-way auxiliary fastener 365 is rotatably installed at the lower end of the extension mounting bracket 364. The rotation range of the one-way auxiliary fastener 365 is 0 degrees to 90 degrees. In the absence of interference from other components, the one-way auxiliary fastener 365 and the extension mounting bracket 364 are perpendicular to each other. The rotating plate 367 is rotatably installed inside the lower mold 2 and near the first displacement sleeve 31. The one-way main buckle plate 366 is fixedly installed on the upper end of the rotating plate 367 and away from the rotation fulcrum of the rotating plate 367. The one-way main buckle plate 366 can press against the one-way auxiliary buckle plate 365. The limiting block 368 is fixedly installed on the lower end of the rotating plate 367 and near the first drive gear 361. The limiting block 368 can be inserted between the teeth of the first drive gear 361 to achieve the engaging connection between the limiting block 368 and the first drive gear 361, thereby limiting the rotation of the first drive gear 361.

[0024] When the one-way auxiliary buckle plate 365 moves vertically downward, it begins to rotate upward upon contact with the one-way main buckle plate 366, allowing it to pass over the one-way main buckle plate 366 and move below it. After moving below the one-way main buckle plate 366, the one-way auxiliary buckle plate 365 rotates in the opposite direction due to its own weight, thus returning to its perpendicular position to the extension mounting bracket 364. When the one-way auxiliary buckle plate 365 moves vertically upward, it drives the one-way main buckle plate 366 upward upon contact with it, causing the rotating plate 367 to rotate. This disengages the limiting block 368 from the first drive gear 361, releasing the first drive gear 361 and allowing the elastic potential energy of the delay torsion spring 363 to drive the first drive gear 361 to rotate.

[0025] The pallet assembly 32 includes a connecting seat 321, an outer pallet 322, an inner pallet 323, and a return spring 324. The connecting seat 321 is fixedly installed inside the first displacement sleeve 31 near its upper end. The outer pallet 322 is rotatably installed on the upper end of the connecting seat 321, and the connecting seat 321 is rotatably installed on the lower end of the outer pallet 322 near its edge. The inner pallet 323 is rotatably installed inside the outer pallet 322, and the inner pallet 323 is rotatably connected to the outer pallet 322. The pivot point of the rotation of the inner pallet 323 and the outer pallet 322 is located on the inner wall of the outer pallet 322, away from the connecting seat 321. The return spring 324 is fixedly installed on the lower end of the inner pallet 323 near the connecting seat 321. One end of the return spring 324 is fixedly connected to the lower end face of the inner pallet 323, and the other end of the return spring 324 is fixedly connected to the inner wall of the first displacement sleeve 31. The outer support plate 322 and the inner support plate 323 form a scissor-type opening and closing structure. When the outer support plate 322 and the inner support plate 323 are in the closed state, their upper surfaces are flush. The end of the outer support plate 322 and the inner support plate 323 near the feeding end of the lower mold 2 is defined as the front end, and the end of the outer support plate 322 and the inner support plate 323 near the discharge end of the lower mold 2 is defined as the rear end. In the initial state, the inner support plate 323 is in an inclined state along with the outer support plate 322, and the front ends of both the outer support plate 322 and the inner support plate 323 are lower than their rear ends. After contacting the workpiece 11, the inner support plate 323 is in a horizontal state along with the outer support plate 322. During the discharge stage of the workpiece 11, the outer support plate 322 is in a horizontal state, and the inner support plate 323 is in an inclined state, with the rear end of the inner support plate 323 lower than its front end.

[0026] When the workpiece 11 is processed by the stamping machine, it enters the stamping range through the feeding end of the lower die 2. At this time, the inner support plate 323 and the outer support plate 322 are in the same position, with their upper surfaces facing the feeding end of the lower die 2. The front ends of the inner support plate 323 and the outer support plate 322 are lower than their rear ends. During the movement of the workpiece 11, it first contacts the upper surfaces of the inner support plate 323 and the outer support plate 322, and the position of the workpiece 11 is higher than the front ends of the inner support plate 323 and the outer support plate 322, thereby reducing the probability of hard contact between the workpiece 11 and the material support mechanism 3 and reducing the probability of accidental deformation of the workpiece 11. As the workpiece 11 continues to move, the inner support plate 323 and the outer support plate 322 gradually rotate until the upper surfaces of the inner support plate 323 and the outer support plate 322 are in contact with the lower surface of the workpiece 11. At this time, the inner support plate 323 and the outer support plate 322 are in a horizontal state. As the rear end height of the outer support plate 322 decreases, the rotation of the outer support plate 322 will drive the correction component 38 to correct the position of the workpiece 11, reducing the probability of the workpiece 11 shifting during movement and thus causing stamping errors. Then, the upper mold moves down and contacts the workpiece 11. As the upper mold continues to move down, the workpiece 11 will press against the outer support plate 322, causing the outer support plate 322 to move downward, which in turn causes the first displacement sleeve 31 to move downward. The first displacement sleeve 31 presses down on the material support spring 39, compressing the material support spring 39, and the workpiece 11 will directly contact the lower mold 2. After the upper and lower molds 2 are closed, the workpiece 11 is stamped and formed.

[0027] At this time, the downward movement of the first displacement sleeve 31 will cause the first toothed plate 37 to move downward. The downward movement of the first toothed plate 37 will cause the pinion 351 to rotate forward. However, the forward rotation of the pinion 351 cannot drive the large gear 352 to rotate, thus preventing the pull bar 33 inside the first displacement sleeve 31 from moving, and the delay wheel assembly 36 does not respond. At the same time, the one-way auxiliary buckle plate 365 moves downward with the downward movement of the first displacement sleeve 31. When the one-way auxiliary buckle plate 365 contacts the one-way main buckle plate 366, it is pushed. Since the one-way auxiliary buckle plate 365 is rotatably connected to the extension mounting bracket 364, the one-way auxiliary buckle plate 365 will flip upward, thus passing the position of the one-way main buckle plate 366, and then moving to below the one-way main buckle plate 366. After the one-way auxiliary buckle plate 365 moves to below the one-way main buckle plate 366, the one-way auxiliary buckle plate 365 flips back to its original state due to its own weight. When the upper mold returns to its original position, the pressure on the upper end of the workpiece 11 disappears, the material support spring 39 will reset, and then push the outer support plate 322 to the position before stamping. At this time, the first toothed plate 37 moves upward. The upward movement of the first toothed plate 37 drives the small gear 351 to reverse. The reverse movement of the small gear 351 will drive the large gear 352 to rotate. The large gear 352 drives the contact gear 362 to rotate through meshing connection. During the rotation, the contact gear 362 will apply torque to the time-delay torsion spring 363, causing the time-delay torsion spring 363 to deform and store elastic potential energy. Since the limiting block 368 on the lower end face of the rotating plate 367 engages with the teeth of the first drive gear 361, the first drive gear 361 is in a state of relative stillness with the limiting block 368. The deformation of the time-delay torsion spring 363 cannot drive the first drive gear 361 to rotate. The elastic potential energy of the time-delay torsion spring 363 is restricted at the time-delay torsion spring 363.

[0028] As the first displacement sleeve 31 moves upward, the one-way auxiliary buckle plate 365 pushes the one-way main buckle plate 366, thereby causing the one-way main buckle plate 366 to move and the rotating plate 367 to rotate. As the rotating plate 367 rotates, the limiting block 368 disengages from the first drive gear 361, the limiting of the first drive gear 361 disappears, and the elastic potential energy on the delay torsion spring 363 is released, thereby driving the first drive gear 361 to rotate. The rotation of the first drive gear 361 will cause the pull bar 33 to move, and the pull bar 33 pulls the inner support plate 323 at the other end, causing the inner support plate 323 to rotate towards the discharge end of the lower mold 2. The inner support plate 323 quickly changes from a horizontal state to an inclined state, and the rear end of the inner support plate 323 will be lower than the front end of the inner support plate 323. The front end of the inner support plate 323 quickly tilts up, the reset spring 324 is stretched, and the processed workpiece 11 is pried up and sent to the outside of the lower mold 2, thus successfully completing the unloading of the workpiece 11. After the material is unloaded, the reset spring 324 will return to its original state, thereby pulling the inner support plate 323 back to the state of being fitted inside the outer support plate 322, so that the upper surfaces of the inner support plate 323 and the outer support plate 322 are flush.

[0029] refer to Figure 6 and Figure 7 The reset assembly 34 includes a first reset curved plate 341, a main magnet 342, a secondary magnet 343, and a wedge plate 344. The first reset curved plate 341 is fixedly installed at the lower end of the outer support plate 322 near its edge. The upper end of the first reset curved plate 341 is fixedly installed at the lower end of the outer support plate 322 near the pull bar 33. The lower end of the first reset curved plate 341 is fixedly installed on the inner wall of the first displacement sleeve 31. The main magnet 342 is fixedly installed inside the first displacement sleeve 31 near the pull bar 33. The secondary magnet 343 is fixedly installed outside the pull bar 33 near the main magnet 342. The main magnet 342 and the secondary magnet 343 have opposite magnetic poles. A long, narrow slot is formed on the outer side of the pull bar 33 near the main magnet 342, allowing the main magnet 342 and the secondary magnet 343 to slide relative to the pull bar 33 within the slot. A wedge plate 344 is fixedly installed on the outside of the pull bar 33 and near the through slot. A main magnet 342 is located on one side of the pull bar 33, a secondary magnet 343 is located on the other side of the pull bar 33, and the wedge plate 344 is located between the main magnet 342 and the secondary magnet 343. When the main magnet 342 and the secondary magnet 343 are magnetically attracted, the wedge plate 344 can move with the pull bar 33 to the space between the main magnet 342 and the secondary magnet 343, separating them.

[0030] When the outer support plate 322 is pushed to a horizontal state by the workpiece 11, the curvature of the first reset curved plate 341 increases. At this time, the main magnet 342 and the auxiliary magnet 343 magnetically attract each other, keeping the first reset curved plate 341 in this curved state, and there is elastic potential energy on the first reset curved plate 341. Before the inner support plate 323 quickly tilts to pry up the workpiece 11, the magnetic attraction of the main magnet 342 and the auxiliary magnet 343 can ensure the horizontal state of the outer support plate 322, so that the inner support plate 323 can smoothly pry up the workpiece 11 and move the workpiece 11 to the outside of the lower mold 2 with a parabolic motion trajectory. In order to ensure the normal operation of subsequent processing, the outer support plate 322 needs to be restored to the tilted state. The traction of the pull bar 33 by the first drive gear 361 will drive the pull bar 33 to move. The displacement of the pull bar 33 can not only make the inner support plate 323 tilt quickly, but also drive the wedge plate 344 to move. After the inner support plate 323 is tilted, the wedge plate 344 on the pull bar 33 contacts the main magnet 342 and the auxiliary magnet 343. The wedge plate 344 is inserted between the main magnet 342 and the auxiliary magnet 343, thereby breaking the magnetic attraction between the main magnet 342 and the auxiliary magnet 343. This causes the first reset curved plate 341 to detach from the traction state of the main magnet 342. The first reset curved plate 341 returns to its original state due to elastic potential energy, thereby lifting the rear end of the outer support plate 322, and thus restoring the outer support plate 322 to the tilted state where the front end is higher than the rear end. The tension of the pull bar 33 on the inner support plate 323 is greater than the tension of the reset spring 324, ensuring that the inner support plate 323 can be lifted smoothly; the pressure of the workpiece 11 on the outer support plate 322 is greater than the elastic force of the first reset curved plate 341, ensuring that the workpiece 11 can press the outer support plate 322 to a horizontal state; the magnetic force of the main magnet 342 and the auxiliary magnet 343 is greater than the elastic force of the first reset curved plate 341, ensuring that the outer support plate 322 can remain horizontal before the workpiece 11 is pried up; the reset spring 324 enables the inner support plate 323 to fit inside the outer support plate 322, making the upper end face of the inner support plate 323 flush with the upper end face of the outer support plate 322.

[0031] refer to Figure 2 , Figure 3 , Figure 5 and Figure 10The correction assembly 38 includes a second toothed plate 381, an acceleration gear set 382, ​​a second drive gear 383, a third toothed plate 384, a displacement plate 385, an adjusting rod 386, a guide rail 387, and a push rod. The second toothed plate 381 is mounted on the lower end of the outer support plate 322, and is located at the lower end of the outer support plate 322 and close to the first reset curved plate 341. The second toothed plate 381 moves vertically up and down inside the lower mold 2. The acceleration gear set 382 is rotatably mounted inside the lower mold 2 and close to the second toothed plate 381. The acceleration gear set 382 includes two gears of different diameters that mesh with each other; the larger diameter gear meshes with the second toothed plate 381. The second drive gear 383 is rotatably mounted inside the lower mold 2 and close to the acceleration gear set 382, ​​and meshes with the smaller diameter gear of the acceleration gear set 382. The third toothed plate 384 is installed inside the lower mold 2 and near the second drive gear 383. The third toothed plate 384 is meshed with the second drive gear 383, and the rotation of the second drive gear 383 drives the third toothed plate 384 to move laterally. The displacement plate 385 is fixedly installed on the upper end of the third toothed plate 384. The adjusting rod 386 is inserted into the outside of the displacement plate 385 and is threadedly connected to the displacement plate 385. The extension length of the adjusting rod 386 on the displacement plate 385 is adjusted through the threaded connection between the adjusting rod 386 and the displacement plate 385. The guide rail 387 is fixedly installed on the outside of the displacement plate 385 and near the adjusting rod 386. The adjusting rod 386 is rotatably connected to the guide rail 387, and the guide rail 387 is slidably connected to the displacement plate 385. One end of the guide rail 387 extends through the displacement plate 385 to a position near the support plate assembly 32. The push plate 388 is fixedly installed at the end of the guide rail 387 near the support plate assembly 32, and the push plate 388 is rotatably connected to the adjusting rod 386.

[0032] When the workpiece 11 pushes the outer support plate 322 to rotate, the rear end of the outer support plate 322 moves downward, which in turn causes the second toothed plate 381 to move downward. The downward movement of the second toothed plate 381 causes the acceleration gear set 382, ​​which meshes with it, to rotate. Since the second toothed plate 381 meshes with the large-diameter gear of the acceleration gear set 382, ​​the downward movement of the second toothed plate 381 will drive the large-diameter gear to rotate. The large-diameter gear will then drive the small-diameter gear to rotate. The small-diameter gear will drive the second drive gear 383, which is concentric with it, to rotate. Thus, the small-stroke rotation of the outer support plate 322 will cause the second drive gear 383 to rotate with a large stroke, which will then drive the third toothed plate 384 to make a long-distance lateral displacement. As the third toothed plate 384 moves laterally, the displacement plate 385 will move closer to the workpiece 11 in sync, and then the push plate 388 installed on it will correct the workpiece 11.

[0033] According to the size of the workpiece 11, rotate the adjusting rod 386. Through the threaded connection between the adjusting rod 386 and the displacement plate 385, adjust the relative position of the adjusting rod 386 and the displacement plate 385, thereby adjusting the distance between the push plate 388 and the displacement plate 385, so that the push plate 388 can adapt to workpieces 11 of different sizes and improve the accuracy of the push plate 388 in correcting deviation.

[0034] refer to Figure 2 and Figure 11 The anti-collision component 4 includes a second displacement sleeve 41, a second reset curved plate 42, and a material support plate 43. The second displacement sleeve 41 has the same structure as the first displacement sleeve 31 and is also fixedly installed on the upper end of the material support spring 39. The second reset curved plate 42 has the same structure as the first reset curved plate 341 and is installed inside the second displacement sleeve 41, close to the material support plate 43. The material support plate 43 has the same structure as the outer support plate 322 and is rotatably connected to the second displacement sleeve 41 via a connecting seat 321. The second displacement sleeve 41 has the same structure as the first displacement sleeve 31, and the installation method of the material support plate 43 is the same as that of the outer support plate 322. The material support plate 43 is in an inclined state. The end of the material support plate 43 closest to the feed end of the lower mold 2 is defined as the front end of the material support plate 43, and the other end is defined as the rear end of the material support plate 43. Initially, the front end of the material support plate 43 is lower than the rear end of the material support plate 43. During loading, the front end of the workpiece 11 does not directly contact the front end of the support plate 43, thereby reducing the probability of the workpiece 11 colliding with the lower end of the support plate 43.

[0035] When the workpiece 11 is fed, it is sent into the processing station from the feeding end of the lower mold 2. The front end of the workpiece 11 moves to the support plate 43. At this time, the support plate 43 is in an inclined state, and the front end of the support plate 43 is lower than the rear end of the support plate 43. The front end of the workpiece 11 directly contacts the upper end surface of the support plate 43. As the workpiece 11 moves, the support plate 43 gradually changes to a horizontal state, and the upper end surface of the support plate 43 is completely in contact with the lower end surface of the workpiece 11. This ensures that the workpiece 11 is in a stable posture when it is stamped, while reducing the probability of hard contact between the workpiece 11 and the lower end of the support plate 43.

[0036] The working principle of this application embodiment: During the feeding stage, the workpiece 11 is fed into the processing station from the feeding end of the lower mold 2. The outer support plate 322 and inner support plate 323 of the material support mechanism 3 and the material support plate 43 of the anti-collision component 4 are all inclined in a front-low and rear-high posture. The workpiece slides smoothly along the inclined support surface to avoid hard impact at the end and accidental deformation. As the workpiece continues to feed, the outer support plate 322 and inner support plate 323 are gradually pressed to the horizontal. At the same time, the rear end of the outer support plate 322 moves down, driving the second toothed plate 381 to move down. After the stroke is amplified by the acceleration gear set 382, ​​the third toothed plate 384 and the push plate 388 are driven to feed laterally, and the workpiece is automatically corrected and positioned laterally.

[0037] During the stamping stage, the upper die applies pressure downwards, and the workpiece drives the first displacement sleeve 31 to compress the material support spring 39 and move downwards. The first toothed plate 37 moves downwards synchronously with the first displacement sleeve 31 and drives the pinion 351 to rotate forward. Relying on the one-way transmission characteristics of the ratchet overrunning clutch 35, the large gear 352 remains stationary. At the same time, the one-way auxiliary buckle plate 365 moves downwards and flips over the one-way main buckle plate 366. The limiting block 368 is still engaged between the teeth of the first drive gear 361, so that the delay torsion spring 363 is in a locked state until the workpiece and the lower die 2 are completely fitted together, and the stamping is completed.

[0038] During the unloading and reset phase, after the upper mold returns, the material support spring 39 rebounds and pushes the first displacement sleeve 31 upward. The first toothed plate 37 moves upward, causing the pinion 351 to reverse, which in turn drives the large gear 352 and the contact gear 362 to rotate, causing the delay torsion spring 363 to twist and store energy. Subsequently, the one-way auxiliary buckle plate 365 moves upward, pushing the one-way main buckle plate 366, which drives the rotating plate 367 to rotate, causing the limit block 368 to disengage from the first drive gear 361. The torsion spring potential energy is released, and the pull bar 33 pulls the front end of the inner support plate 323 to quickly tilt up, prying the workpiece up and sending it out of the mold. Then, the wedge plate 344 moves with the pull bar 33 to separate the main and auxiliary magnets 343. The first reset curved plate 341 and the reset pull spring 324 work together to return the outer support plate 322 and the inner support plate 323 to their initial tilted state, completing the entire work cycle.

[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stamping part support device for a stamping die, comprising a die support (1), wherein the upper end of the die support (1) is provided with a lower die (2) for processing a workpiece (11), characterized in that, A material support mechanism (3) is provided inside the lower mold (2) near its upper end. The material support mechanism (3) includes a material support spring (39) fixed inside the lower mold (2). A first displacement sleeve (31) is fixedly connected to the upper end of the material support spring (39). A support plate assembly (32) is provided inside the first displacement sleeve (31) near its upper end. The support plate assembly (32) includes a connecting seat (321) fixed inside the first displacement sleeve (31). The upper part of the connecting seat (321) is... An outer support plate (322) is rotatably connected to the end of the outer support plate (322), and an inner support plate (323) is rotatably connected to the inner side of the outer support plate (322). A reset spring (324) is fixedly connected to the lower end of the inner support plate (323) near the connecting seat (321). One end of the reset spring (324) is fixedly connected to the lower end of the inner support plate (323), and the other end of the reset spring (324) is fixedly connected to the inner wall of the first displacement sleeve (31). A pull bar (33) is fixedly connected to the lower end of the inner support plate (323). The lower mold (2) is provided with a delay wheel assembly (36) inside and near the pull bar (33). The delay wheel assembly (36) is provided with a ratchet overrunning clutch (35) on the outside. The ratchet overrunning clutch (35) includes a large gear (352) meshing with the delay wheel assembly (36). A small gear (351) is provided on one side of the large gear (352). The small gear (351) meshes unidirectionally with the inner ring of the large gear (352). A first toothed plate (37) is meshed with the outside of the small gear (351). The upper end of the first toothed plate (37) is fixedly connected to the lower end of the first displacement sleeve (31). A guide roller (332) is rotatably connected inside the lower mold (2) near the pull bar (33). The outer circumferential surface of the guide roller (332) abuts against the surface of the pull bar (33).

2. The stamping part support device for a stamping die according to claim 1, characterized in that, The delay wheel assembly (36) includes a contact gear (362) meshing with a large gear (352). A delay torsion spring (363) is fixedly connected to one end face of the contact gear (362). A first drive gear (361) is fixedly connected to one end of the delay torsion spring (363) away from the contact gear (362). The first drive gear (361) is fixedly connected to one end of the pull bar (33) away from the inner support plate (323).

3. The stamping part support device for a stamping die according to claim 2, characterized in that, An extension mounting bracket (364) is fixedly connected to the lower end of the first displacement sleeve (31) and near the first drive gear (361). A one-way auxiliary buckle plate (365) is rotatably connected to the lower end of the extension mounting bracket (364). The rotation range of the one-way auxiliary buckle plate (365) is 0 degrees to 90 degrees. A rotating plate (367) is rotatably connected to the inner side of the lower mold (2) and near the first drive gear (361). A one-way main buckle plate (366) is fixedly connected to the upper end of the rotating plate (367) and near the one-way auxiliary buckle plate (365). The one-way auxiliary buckle plate (365) abuts against and drives the one-way main buckle plate (366) to move. A limit block (368) is fixedly connected to the lower end of the rotating plate (367). The limit block (368) can be engaged in the gap between the teeth of the first drive gear (361).

4. A stamping part support device for a stamping die according to claim 3, characterized in that, The first displacement sleeve (31) is provided with a reset assembly (34) inside. The reset assembly (34) includes a first reset curved plate (341). The upper end of the first reset curved plate (341) is fixedly connected to the lower end of the outer support plate (322) and away from the reset spring (324). The lower end of the first reset curved plate (341) is fixedly connected to the inner side wall of the first displacement sleeve (31). A secondary magnet (343) is fixed on the surface of the first reset curved plate (341) near the pull bar (33). A main magnet (342) is fixed inside the first displacement sleeve (31) near the secondary magnet (343). The magnetic poles of the main magnet (342) and the secondary magnet (343) are opposite to each other and are respectively located on both sides of the pull bar (33).

5. A stamping part support device for a stamping die according to claim 4, characterized in that, A wedge plate (344) is provided on the outer side of the pull bar (33) and near the auxiliary magnet (343). The wedge plate (344) can be inserted between the main magnet (342) and the auxiliary magnet (343) when the pull bar (33) moves. A long through groove is provided on the pull bar (33) near the wedge plate (344). The main magnet (342) and the auxiliary magnet (343) can slide in the through groove of the pull bar (33).

6. A stamping part support device for a stamping die according to claim 1, characterized in that, Inside the lower mold (2) and near the first displacement sleeve (31), a correction component (38) is provided. The correction component (38) includes a second toothed plate (381) fixed to the lower end of the outer support plate (322). The second toothed plate (381) is fixedly installed at the lower end of the outer support plate (322) and near the edge. The lower end of the second toothed plate (381) is meshed with an acceleration gear set (382). The acceleration gear set (382) includes two gears with different diameters that mesh with each other. The second toothed plate (381) is meshed with the large diameter gear of the acceleration gear set (382). The small diameter gear of the acceleration gear set (382) is coaxially fixedly connected to a second drive gear (383). The outer side of the second drive gear (383) is meshed with a third toothed plate (384). One end of the third toothed plate (384) is fixedly connected to a displacement plate (385).

7. A stamping part support device for a stamping die according to claim 6, characterized in that, An adjusting rod (386) is threadedly connected to one side surface of the displacement plate (385). A knob is fixed to one end of the adjusting rod (386) away from the support plate assembly (32). A guide rail (387) is slidably connected to the displacement plate (385). One end of the guide rail (387) is rotatably connected to the end of the adjusting rod (386) with the knob. A push plate (388) is fixedly connected to the other end of the guide rail (387). The push plate (388) is rotatably connected to the adjusting rod (386). The push plate (388) is located on the side of the displacement plate (385) closer to the workpiece (11).

8. A stamping part support device for a stamping die according to claim 1, characterized in that, The lower mold (2) is also provided with an anti-collision component (4). The anti-collision component (4) includes an independently set material support spring (39). The upper end of the material support spring (39) is fixedly connected to a second displacement sleeve (41). The upper end of the second displacement sleeve (41) is rotatably connected to a material support plate (43). The lower end of the material support plate (43) and near the edge is provided with a second reset curved plate (42). The upper end of the second reset curved plate (42) is fixedly connected to the lower end of the material support plate (43). The lower end of the second reset curved plate (42) is fixedly connected to the inner wall of the second displacement sleeve (41).

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