An intelligent stamping die that automatically adjusts the punching force based on material hardness

Abstract

The present invention discloses an intelligent stamping die which automatically adjusts the stamping intensity based on the hardness of the material, and belongs to the field of metal processing technology. The stamping die comprises a stamping frame, an upper die is provided on the stamping frame, a stamping hydraulic rod is provided on the stamping frame, two ends of the stamping hydraulic rod are respectively connected to the stamping frame and the upper end face of the upper die, a lower die is provided on the stamping frame, a plurality of supporting slides are provided on the lower die, the supporting slides pass through the upper die and are slidably connected to the upper die, a breaking ring is provided on the lower die, an anti-slip component is provided on the lower die, a stamping track is provided on the upper die, a stamping column is provided in the stamping track, a plurality of fixed handles are provided on the upper die, a detection pillar is provided on the stamping column, the detection pillar is slidably connected to the stamping column, a detection spring is provided between the detection pillar and the stamping column, and two ends of the detection spring respectively press against the upper die and the detection pillar. The present invention has the function of automatically adjusting the stamping effect according to the hardness of the metal plate.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing, and in particular to an intelligent stamping die capable of automatically adjusting stamping force based on material hardness. Background Art

[0002] In modern processing technology, stamping dies are special process equipment used to process materials into parts during cold stamping. They are called cold stamping dies and are mostly used for materials such as metal sheets. They stamp metal sheets at room temperature and use the die installed on the press to apply pressure to the material to cause it to separate or plastically deform, thereby obtaining the required parts. Depending on the product processing method, the die can be divided into five categories: punching and shearing die, bending die, drawing die, forming die and compression die. Each die is used on different machine tools and has different effects.

[0003] Among the existing stamping dies, most of them have a single work process, and the products that can be processed are also relatively single. In the accumulated use, people have also found that the unqualified rate of processed products is gradually increasing, such as the blanking of the finished products, excessive burrs and other problems. At the same time, due to the different properties of the metals, the deformation of the workpieces produced during the processing is also relatively different. At the same time, during the stamping process, surface scratches and strains often occur, resulting in the product being in progress. At the same time, during the stamping and drawing process, if there is no precise measurement, it is easy to cause the product to have inconsistent flange height and inaccurate positioning, which greatly reduces the qualified rate of the product. At the same time, due to inconsistent drawing degrees, the product may also have inconsistent hardness in different positions, making it impossible to guarantee product quality. Summary of the Invention

[0004] The present invention provides an intelligent stamping die that automatically adjusts the stamping force based on the hardness of the material, which can effectively solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The stamping die includes a stamping frame, an upper die is provided on the stamping frame, the upper die is slidably connected to the stamping frame, a stamping hydraulic rod is provided on the stamping frame, both ends of the stamping hydraulic rod are respectively connected to the stamping frame and the upper end surface of the upper die, a lower die is provided on the stamping frame, a plurality of supporting slide columns are provided on the lower die, the supporting slide columns pass through the upper die and are slidably connected to the upper die, a breaking ring is provided on the lower die, the breaking ring is slidably connected to the lower die, an anti-slip component is provided on the lower die, a stamping track is provided on the upper die, a stamping column is provided in the stamping track, each stamping column is respectively slidably connected to the stamping track, a plurality of fixed handles are provided on the upper die, each fixed handle is respectively rotatably connected to the upper die, a detection column is provided on the stamping column, the detection column is slidably connected to the stamping column, and a detection spring is provided between the detection column and the stamping column The two ends of the detection spring are respectively against the upper mold and the detection pillar. When processing the metal, the upper mold will move to the lower mold in the direction of the supporting slide column under the action of the stamping hydraulic rod, and then clamp the metal sheet. Under the action of the external stamping machine, the stamping column will process the metal sheet under the action of the stamping machine and the stamping hydraulic rod. The position of the stamping column can be adjusted according to specific needs. The stamping track provides the stamping trajectory. After determining the position, the position of the stamping column is fixed by rotating the fixing handle, thereby determining the stamping position to avoid the single working range of the stamping die. At the same time, during the stamping process, the detection pillar will detect the hardness of the metal sheet, thereby adjusting the stamping strength and stamping speed of the stamping hydraulic rod to adapt to the stamping operation of metal sheets of various hardness.

[0007] The upper mold is provided with multiple feed rollers, each of which is respectively arranged on the lower end surface of the upper mold and is rotatably connected to the upper mold. A pressing frame is provided on the upper mold, and the pressing frame is connected to the stamping hydraulic rod. A pressing head is provided at the end of the pressing frame away from the stamping hydraulic rod, and the pressing head is connected to the stamping column. The pressing frame is slidably connected to the stamping frame. During the movement of the metal plate, in order to avoid the metal plate being scratched by the upper mold, the feed roller can well prevent the metal plate from sliding on the upper mold. At the same time, the feed roller can also avoid the problem of tearing of the metal plate due to changes in the upper surface of the metal plate during the stamping process. At the same time, the pressing head will provide downward pressure for the stamping column.

[0008] A transmission rod is provided on the pressing frame, and the transmission rod is a telescopic structure. One end of the transmission rod is connected to the stamping hydraulic rod, and the end of the transmission rod away from the stamping hydraulic rod is connected to the stamping column. A stamping groove is provided on the lower die, and a recoil plate is provided in the stamping groove. The recoil plate is slidably connected to the stamping groove, and an energized ring is provided on the recoil plate. A positioning resistor is provided on the lower die, and the energized ring is in sliding contact with the positioning resistor. The stamping hydraulic rod will drive the pressing frame to move downward, and the transmission rod will move under the action of the pressing frame. In order to adapt to the position of the stamping column, the transmission rod will move on the pressing frame. During the stamping process, the metal plate will push out the recoil plate on the lower die, and the movement of the recoil plate will drive the energized ring to move. During the movement, the current passing through the positioning resistor will change. The current change at this time will reflect the change of the metal workpiece, thereby completing the operation of auxiliary positioning stamping. When the current fluctuates up and down, it proves that the metal workpiece has recovered. At this time, the stamping hydraulic rod will be mobilized to complete the final shaping problem.

[0009] A conversion key is provided on the lower die, which is slidingly connected to the lower die, a breaking rack is provided in the lower die, the breaking rack is connected to the recoil plate, a breaking groove is provided in the lower die, a breaking spring is provided in the breaking groove, a breaking wedge is provided in the breaking groove, two ends of the breaking spring respectively resist the breaking wedge and the breaking groove, the conversion key is connected to the breaking spring, and the breaking spring is connected to the breaking rack. The stamping die can realize two processing methods, one is the punching groove type stamping, and the other is the breaking type processing method. After determining the processing method, adjust the conversion key, the conversion key will cause the breaking spring to move. After the breaking spring moves, no matter how the recoil plate changes, the breaking ring will no longer move. During non-breaking processing, the recoil plate will drive the breaking rack to move, and the movement of the breaking rack will cause the breaking spring to be squeezed, and finally break through the breaking wedge, and the breaking ring will hit the metal workpiece.

[0010] An adjustment slider is provided on the upper mold, and the adjustment slider is slidingly connected to the upper mold. A stamping track is provided on the adjustment slider, and the stamping track includes a stamping chain, an adjustment shaft, and an adjustment sub-shaft. The stamping chain bypasses the adjustment shaft and the adjustment sub-shaft, and the adjustment shaft, the adjustment sub-shaft and the adjustment slider are rotationally connected. An adjustment rocker is provided on the adjustment shaft, and the adjustment rocker is rotationally connected to the adjustment slider. Teeth are provided on the stamping column, and the teeth on the stamping column engage with the stamping chain. By adjusting the adjustment rocker, the stamping chain is moved, and the movement of the stamping chain will drive the support sleeve. The position of the support sleeve will determine the determination of the stamping position of the metal sheet, so that the support sleeve can move more stably and adjust the position.

[0011] The stamping column includes a support sleeve, which is provided with teeth. The support sleeve is meshed with the stamping chain through the teeth. A sliding rod is provided in the support sleeve, which is slidably connected to the support sleeve, and the sliding rod is connected to the stamping hydraulic rod. The detection pillar is provided in the sliding rod, and the detection pillar is slidably connected to the sliding rod. A cooling ring is provided near the sliding rod on the upper mold, and the cooling ring is connected to the cold water tank. When stamping is performed, the support sleeve will move under the action of the stamping chain, and the stamping hydraulic rod will drive the pressing frame and the transmission rod to move when working. The sliding rod will move in the direction of the support sleeve, and the detection column will also move downward synchronously under the action of the sliding rod to stamp the metal sheet, thereby completing the stamping. When stamping is performed, the cooling liquid in the cooling ring will also timely cool down the upper mold.

[0012] A detection probe is provided on the detection pillar, which is slidingly connected to the detection pillar, a micro-resistor is provided in the detection pillar, and a micro-ring is provided on the detection probe. The micro-ring is sleeved on the micro-resistor and in sliding contact with the micro-resistor. The micro-resistor and the micro-ring are connected to the stamping hydraulic rod through a wire. During the stamping process, the detection pillar is pressed against the metal plate under the action of the detection spring. When the metal plate is stamped, the metal plate will vibrate, and the vibration will be captured by the detection probe. Subsequently, the micro-ring and the micro-resistor cooperate with each other to reflect the vibration of the metal plate. The harder the metal plate, the smaller the vibration amplitude. When the hardness of the metal plate is not strong, the vibration amplitude is larger. By utilizing this feature, the hardness of the metal can be clearly detected, thereby feeding back to the stamping hydraulic rod.

[0013] The support sleeve is provided with an anti-stuck groove, an anti-stuck ring is provided on the anti-stuck groove, the anti-stuck ring is rotatably connected to the anti-stuck groove, a plurality of anti-stuck columns are provided on the anti-stuck ring, and each anti-stuck column is provided with an anti-stuck spring, and the two ends of the anti-stuck spring respectively resist the anti-stuck ring and the anti-stuck column, a plurality of release rollers are provided on the sliding rod, and the release roller is provided with teeth, and a plurality of resisting pieces are provided on the anti-stuck ring, and the resisting piece is slidably connected to the anti-stuck ring, and the resisting piece is engaged with the teeth on the release roller. After the stamping is completed, the metal plate will be deformed. If the deformation of the metal plate If it is too large, there will be a problem of jamming the support sleeve. At this time, if the upper mold is lifted forcibly, the processed metal sheet will be deformed in addition to the stamping operation, resulting in insufficient yield of the processed metal workpiece. Before processing, the release roller will rotate to make the blocking piece block the anti-jamming column, and the anti-jamming column will be retracted into the anti-jamming ring. After processing is completed, the release roller will rotate in the opposite direction, and the blocking piece will retract into the anti-jamming ring. The anti-jamming column will push out the processed metal sheet to prevent the metal workpiece from getting stuck on the support sleeve.

[0014] The anti-slip component includes an anti-slip plate, which is provided with multiple anti-slip probes. The anti-slip plate is slidably connected to the lower mold, the lower mold is provided with a trigger pillar, the trigger pillar is provided with teeth, the lower mold is provided with a trigger gear, the trigger pillar and the trigger gear are meshed through teeth, the anti-slip plate is provided with teeth, the teeth on the anti-slip plate are meshed with the trigger gear, the trigger pillar is meshed with the trigger gear away from the anti-slip plate, a trigger spring is provided on the trigger pillar, and both ends of the trigger spring respectively press against the trigger pillar and the lower mold, the metal plate falls on the lower template, and the upper mold squeezes the metal plate downward, the metal plate will squeeze the trigger pillar downward, the trigger pillar moves downward, and the trigger gear is mobilized to rotate, so that the sliding plate moves upward, and the anti-slip probe on the sliding plate will press against the metal plate, so that the metal plate can be better fixed to prevent the metal plate from moving during the stamping process, resulting in misalignment errors in the metal plate during the stamping process.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention detects the change in metal hardness during stamping, thereby performing real-time feedback, thereby controlling the force and speed when stamping the metal, avoiding the problem of inconsistent hardness at various positions of the metal after stamping due to different control forces during the stamping process, and also avoiding the problem of metal being strained during stamping due to excessive speed.

[0016] 2. The present invention adopts a multi-point processing structure and utilizes an internal adjustment track to increase the scope of application of the present invention and reduce the problem of the single working nature of the stamping die. At the same time, the present invention adds a punching structure and adopts an automatic switching punching structure, which can greatly reduce the burr problem generated during the stamping process and increase the product qualification rate.

[0017] 3. The present invention adopts an automatic detection component after the product is formed, which can detect the forming state of the bottom end surface of the metal workpiece during the stamping process, and can detect the thickness of the workpiece forming part in real time. It can also detect the rebound phenomenon that occurs after the metal workpiece is stamped and provide synchronous feedback, and then perform anti-rebound treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic structural diagram of the lower end surface of the upper mold of the present invention;

[0021] Figure 3 This is a schematic structural diagram of the upper end surface of the lower mold of the present invention;

[0022] Figure 4 It is a schematic diagram of the internal structure of the upper mold of the present invention;

[0023] Figure 5 It is a schematic diagram of the punching column structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the internal structure of the punching column of the present invention;

[0025] Figure 7 yes Figure 6 The structural diagram of the partially enlarged A in the middle;

[0026] Figure 8 This is a schematic diagram of the internal structure of the lower mold of the present invention;

[0027] Figure 9 It is a schematic diagram of the side cross-sectional structure of the lower mold of the present invention;

[0028] Numbers in the figure: 1, punching frame; 2, upper die; 201, feed roller; 202, pressing frame; 203, pressing head; 204, transmission rod; 3, lower die; 301, recoil plate; 302, energizing ring; 303, positioning resistor; 304, punching rack; 305, punching spring; 306, punching wedge; 4, punching hydraulic rod; 5, support slide; 6, punching ring; 7, anti-skid assembly; 701, anti-skid plate; 702, anti-skid probe; 703, trigger support; 704, trigger gear; 705, trigger spring; 8 , stamping track; 801, stamping chain; 802, adjustment shaft; 803, adjustment secondary shaft; 804, adjustment rocker; 9, stamping column; 901, support sleeve; 902, sliding rod; 903, cooling ring; 904, anti-stuck ring; 905, anti-stuck column; 906, anti-stuck spring; 907, release roller; 908, stop plate; 10, fixed handle; 11, detection pillar; 1101, detection probe; 1102, micro resistor; 1103, micro ring; 12, detection spring; 13, adjustment slider; 14, conversion key. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] like Figure 1 、 2As shown in Figure 3, the stamping die includes a stamping frame 1, an upper die 2 is provided on the stamping frame 1, and the upper die 2 is slidably connected to the stamping frame 1, a stamping hydraulic rod 4 is provided on the stamping frame 1, and both ends of the stamping hydraulic rod 4 are respectively connected to the stamping frame 1 and the upper end surface of the upper die 2, a lower die 3 is provided on the stamping frame 1, and a plurality of supporting slide columns 5 are provided on the lower die 3, which pass through the upper die 2 and are slidably connected to the upper die 2, a breaking ring 6 is provided on the lower die 3, and the breaking ring 6 is slidably connected to the lower die 3, and an anti-slip component 7 is provided on the lower die 3, a stamping track 8 is provided on the upper die 2, and a stamping column 9 is provided in the stamping track 8, and each stamping column 9 is respectively slidably connected to the stamping track 8, a plurality of fixed handles 10 are provided on the upper die 2, and each fixed handle 10 is respectively rotatably connected to the upper die 2, and a detection pillar 11 is provided on the stamping column 9, and the detection pillar 11 is slidably connected to the stamping column 9. A detection spring 12 is arranged between the upper mold 2 and the stamping column 9, and the two ends of the detection spring 12 respectively press against the upper mold 2 and the detection support 11. When processing the metal, the upper mold 2 will move in the direction of the supporting slide column 5 under the action of the stamping hydraulic rod 4, and then clamp the metal sheet. Under the action of the external stamping machine, the stamping column 9 will process the metal sheet under the action of the stamping machine and the stamping hydraulic rod 4. The position of the stamping column 9 can be adjusted according to specific needs. The stamping track 8 provides a stamping trajectory. After determining the position, the position of the stamping column 9 is fixed by rotating the fixing handle 10, thereby determining the stamping position to avoid the single working range of the stamping mold. At the same time, during the stamping process, the detection support 11 will detect the hardness of the metal sheet, thereby adjusting the stamping strength and stamping speed of the stamping hydraulic rod 4 to adapt to the stamping operation of metal sheets of various hardness.

[0031] like Figure 2 、 4 As shown, a plurality of feed rollers 201 are provided on the upper mold 2, and each feed roller 201 is respectively provided on the lower end surface of the upper mold 2 and is rotatably connected to the upper mold 2. A pressing frame 202 is provided on the upper mold 2, and the pressing frame 202 is connected to the stamping hydraulic rod 4. A pressing head 203 is provided at the end of the pressing frame 202 away from the stamping hydraulic rod 4, and the pressing head 203 is connected to the stamping column 9. The pressing frame 202 is slidably connected to the stamping frame 1. During the movement of the metal plate, in order to prevent the metal plate from being scratched by the upper mold 2, the feed roller 201 can well prevent the metal plate from sliding on the upper mold 2. At the same time, the feed roller 201 can also prevent the metal plate from tearing due to changes in the upper surface of the metal plate during the stamping process. At the same time, the pressing head 203 will provide downward pressing power for the stamping column 9.

[0032] like Figure 4As shown, a transmission rod 204 is provided on the pressing frame 202, and the transmission rod 204 is a telescopic structure. One end of the transmission rod 204 is connected to the stamping hydraulic rod 4, and the end of the transmission rod 204 away from the stamping hydraulic rod 4 is connected to the stamping column 9. A stamping groove is provided on the lower mold 3, and a recoil plate 301 is provided in the stamping groove. The recoil plate 301 is slidably connected to the stamping groove, and an energized ring 302 is provided on the recoil plate 301. A positioning resistor 303 is provided on the lower mold 3. The energized ring 302 is in sliding contact with the positioning resistor 303. The stamping hydraulic rod 4 will drive the pressing frame 202 to move downward, and the transmission rod 204 will be under the action of the pressing frame 202 To move, in order to adapt to the position of the stamping column 9, the transmission rod 204 will move on the pressing frame 202. During the stamping process, the metal plate will push out the recoil plate 301 on the lower mold 3. The movement of the recoil plate 301 will drive the power ring 302 to move. During the movement, the current through the positioning resistor 303 will change. The current change at this time will reflect the change of the metal workpiece, thereby completing the auxiliary positioning stamping operation. When the current fluctuates up and down, it proves that the metal workpiece has recovered. At this time, the stamping hydraulic rod 4 will be mobilized to complete the final shaping problem.

[0033] like Figure 3 、 6 As shown, a switching key 14 is provided on the lower mold 3, and the switching key 14 is slidably connected to the lower mold 3. A punching rack 304 is provided in the lower mold 3, and the punching rack 304 is connected to the recoil plate 301. A punching groove is provided in the lower mold 3, and a punching spring 305 is provided in the punching groove. A punching wedge 306 is provided in the punching groove. The two ends of the punching spring 305 respectively resist the punching wedge 306 and the punching groove. The switching key 14 is connected to the punching spring 305, and the punching spring 305 is connected to the punching rack 304. The stamping mold can realize two processing There are two processing methods, one is a punching type stamping method, and the other is a breaking type processing method. After determining the processing method, adjust the conversion key 14. The conversion key 14 will move the breaking spring 305. After the breaking spring 305 moves, no matter how the recoil plate 301 changes, the breaking ring 6 will no longer move. During non-breaking processing, the recoil plate 301 will drive the breaking rack 304 to move. The movement of the breaking rack 304 will squeeze the breaking spring 305, and finally break through the breaking wedge 306, and the breaking ring 6 will hit the metal workpiece.

[0034] like Figure 4As shown, an adjustment slider 13 is provided on the upper mold 2, and the adjustment slider 13 is slidingly connected to the upper mold 2. A stamping track 8 is provided on the adjustment slider 13, and the stamping track 8 includes a stamping chain 801, an adjustment shaft 802, and an adjustment sub-shaft 803. The stamping chain 801 bypasses the adjustment shaft 802 and the adjustment sub-shaft 803, and the adjustment shaft 802, the adjustment sub-shaft 803 are rotationally connected to the adjustment slider 13. An adjustment rocker 804 is provided on the adjustment shaft 802, and the adjustment rocker 804 is rotationally connected to the adjustment slider 13. Teeth are provided on the stamping column 9, and the teeth on the stamping column 9 are engaged with the stamping chain 801. By adjusting the adjustment rocker 804, the stamping chain 801 is moved, and the movement of the stamping chain 801 will drive the support sleeve 901. The position of the support sleeve 901 will determine the determination of the stamping position of the metal sheet, so that the support sleeve 901 can move more stably and adjust the position.

[0035] like Figure 5 As shown, the stamping column 9 includes a support sleeve 901, which is provided with teeth. The support sleeve 901 is engaged with the stamping chain 801 through the teeth. A sliding rod 902 is provided in the support sleeve 901, and the sliding rod 902 is slidably connected to the support sleeve 901. The sliding rod 902 is connected to the stamping hydraulic rod 4. The detection support 11 is provided in the sliding rod 902, and the detection support 11 is slidably connected to the sliding rod 902. The upper mold 2 is provided with a cooling ring 903 near the sliding rod 902, and the cooling ring 903 is connected to the cold water tank. When stamping is carried out, the support sleeve 901 will move under the action of the stamping chain 801, and the stamping hydraulic rod 4 will drive the pressing frame 202 and the transmission rod 204 to move when working. The sliding rod 902 will move in the direction of the support sleeve 901, and the detection column will also move downward synchronously under the action of the sliding rod 902 to stamp the metal sheet, thereby completing the stamping. When stamping is carried out, the cooling liquid in the cooling ring 903 will also timely cool down the upper mold 2.

[0036] like Figure 5 、 6As shown, a detection probe 1101 is provided on the detection pillar 11, and the detection probe 1101 is slidably connected to the detection pillar 11. A micro-resistor 1102 is provided in the detection pillar 11, and a micro-ring 1103 is provided on the detection probe 1101. The micro-ring 1103 is sleeved on the micro-resistor 1102 and in sliding contact with the micro-resistor 1102. The micro-resistor 1102 and the micro-ring 1103 are connected to the stamping hydraulic rod 4 through a wire. During the stamping process, the detection pillar 11 is pressed against the metal plate under the action of the detection spring 12. When the metal plate is stamped, the metal plate will vibrate, and the vibration will be captured by the detection probe 1101. Then, the micro-ring 1103 and the micro-resistor 1102 cooperate with each other to reflect the vibration of the metal plate. The harder the metal plate, the smaller the vibration amplitude. When the hardness of the metal plate is not strong, the vibration amplitude is larger. This characteristic can be used to clearly detect the hardness of the metal, thereby feeding back to the stamping hydraulic rod 4.

[0037] like Figure 6 、 7 As shown, the support sleeve 901 is provided with an anti-stuck groove, and the anti-stuck groove is provided with an anti-snapping ring 904, the anti-snapping ring 904 is rotatably connected to the anti-stuck groove, and a plurality of anti-stuck columns 905 are provided on the anti-stuck ring 904, and each anti-stuck column 905 is respectively provided with an anti-stuck spring 906, and the two ends of the anti-stuck spring 906 respectively resist the anti-stuck ring 904 and the anti-stuck column 905, and a plurality of release rollers 907 are provided on the sliding rod 902, and the release roller 907 is provided with teeth, and a plurality of blocking pieces 908 are provided on the anti-snapping ring 904, and the blocking piece 908 is slidably connected to the anti-snapping ring 904, and the blocking piece 908 is engaged with the teeth on the release roller 907. After the stamping is completed, the metal plate is Deformation will occur. If the deformation of the metal plate is too large, there will be a problem of jamming the support sleeve 901. At this time, if the upper mold 2 is forcibly lifted, the processed metal plate will be deformed in addition to the stamping operation, resulting in insufficient yield of the processed metal workpiece. Before processing, the release roller 907 will rotate to make the blocking piece 908 block the anti-stuck column 905, and the anti-stuck column 905 will be retracted into the anti-snapping ring 904. After processing is completed, the release roller 907 will rotate in the opposite direction, and the blocking piece will retract into the anti-snapping ring 904. The anti-stuck column 905 will push out the processed metal plate to prevent the metal workpiece from getting stuck on the support sleeve 901.

[0038] like Figure 8As shown, the anti-skid assembly 7 includes an anti-skid plate 701, a plurality of anti-skid probes 702 are provided on the anti-skid plate 701, the anti-skid plate 701 is slidably connected to the lower mold 3, a trigger pillar 703 is provided on the lower mold 3, the trigger pillar 703 is provided with teeth, the lower mold 3 is provided with a trigger gear 704, the trigger pillar 703 and the trigger gear 704 are meshed through the teeth, the anti-skid plate 701 is provided with teeth, the teeth on the anti-skid plate 701 are meshed with the trigger gear 704, the trigger pillar 703 is meshed with the trigger gear 704 away from the anti-skid plate 701, and the trigger pillar 703 is meshed with the trigger gear 704 on the side away from the anti-skid plate 701. A trigger spring 705 is provided, and the two ends of the trigger spring 705 respectively press against the trigger pillar 703 and the lower mold 3. The metal plate falls on the lower template, and the upper mold 2 presses the metal plate downward. The metal plate will press the trigger pillar 703 downward, and the trigger pillar 703 moves downward, mobilizing the trigger gear 704 to rotate, so that the sliding plate moves upward, and the anti-slip probe 702 on the sliding plate will press against the metal plate, so that the metal plate can be better fixed, preventing the metal plate from moving during the stamping process, resulting in the metal plate having a misalignment error problem during the stamping process.

[0039] The working principle of the present invention is as follows: when processing metal, the upper mold 2 will move toward the lower mold 3 in the direction of the supporting sliding column 5 under the action of the stamping hydraulic rod 4, and then clamp the metal sheet. Under the action of the external stamping machine, the stamping column 9 will process the metal sheet under the action of the stamping machine and the stamping hydraulic rod 4, and the sliding rod moves downward to stamp the metal plate. The micro-ring and micro-resistor in the detection pillar will detect the hardness of the metal in real time, and the stamping adjustment will be performed after feedback. The position of the stamping column 9 can be replaced according to specific needs. The stamping track 8 provides a stamping trajectory. The position of the stamping column can be changed by adjusting the rocker. After determining the position, the position of the stamping column 9 is fixed by rotating the fixing handle 10, thereby determining the stamping position, and then stamping is performed. At the same time, during the stamping process, the recoil plate in the lower mold can detect the sinking metal workpiece, detect the sinking flatness of the metal workpiece, and also detect the rebound of the metal workpiece after the stamping is completed. Then feedback is performed to adjust the work flow of the stamping hydraulic rod to increase the product qualification rate.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Finally, it should be noted that the above descriptions 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 aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An intelligent stamping die that automatically adjusts the punching force based on the material hardness, characterized by: The punching die comprises a punching frame (1), an upper die (2) is provided on the punching frame (1), the upper die (2) is slidably connected to the punching frame (1), a punching hydraulic rod (4) is provided on the punching frame (1), and both ends of the punching hydraulic rod (4) are respectively connected to the punching frame (1) and the upper end surface of the upper die (2), a lower die (3) is provided on the punching frame (1), a plurality of support slides (5) are provided on the lower die (3), the support slides (5) pass through the upper die (2) and are slidably connected to the upper die (2), a punching ring (6) is provided on the lower die (3), the punching ring (6) is slidably connected to the lower die (3), and a punching ring (6) is provided on the lower die (3). There is an anti-slip component (7), a punching track (8) is provided on the upper mold (2), a punching column (9) is provided in the punching track (8), each of the punching columns (9) is slidably connected to the punching track (8), a plurality of fixed handles (10) are provided on the upper mold (2), each of the fixed handles (10) is rotatably connected to the upper mold (2), a detection column (11) is provided on the punching column (9), the detection column (11) is slidably connected to the punching column (9), a detection spring (12) is provided between the detection column (11) and the punching column (9), and two ends of the detection spring (12) respectively abut against the upper mold (2) and the detection column (11); The upper mold (2) is provided with a plurality of feed rollers (201), each of the feed rollers (201) is respectively provided on the lower end surface of the upper mold (2) and is rotatably connected to the upper mold (2), the upper mold (2) is provided with a pressing frame (202), the pressing frame (202) is connected to the punching hydraulic rod (4), the pressing frame (202) is provided with a pressing head (203) at one end away from the punching hydraulic rod (4), the pressing head (203) is connected to the punching column (9), and the pressing frame (202) is slidably connected to the punching frame (1); The pressing frame (202) is provided with a transmission rod (204), the transmission rod (204) is a telescopic structure, one end of the transmission rod (204) is connected to the stamping hydraulic rod (4), and the end of the transmission rod (204) away from the stamping hydraulic rod (4) is connected to the stamping column (9), the lower mold (3) is provided with a stamping groove, a recoil plate (301) is provided in the stamping groove, the recoil plate (301) is slidably connected to the stamping groove, the recoil plate (301) is provided with an electric ring (302), the lower mold (3) is provided with a positioning resistor (303), and the electric ring (302) is in sliding contact with the positioning resistor (303); The lower mold (3) is provided with a conversion key (14), the conversion key (14) is slidably connected to the lower mold (3), a punching rack (304) is provided in the lower mold (3), the punching rack (304) is connected to the recoil plate (301), a punching groove is provided in the lower mold (3), a punching spring (305) is provided in the punching groove, a punching wedge (306) is provided in the punching groove, two ends of the punching spring (305) respectively abut against the punching wedge (306) and the punching groove, the conversion key (14) is connected to the punching spring (305), and the punching spring (305) is connected to the punching rack (304).

2. The intelligent stamping die that automatically adjusts the punching force based on the material hardness according to claim 1, characterized in that: An adjustment slider (13) is provided on the upper mold (2), and the adjustment slider (13) is slidably connected to the upper mold (2). A stamping track (8) is provided on the adjustment slider (13), and the stamping track (8) includes a stamping chain (801), an adjustment shaft (802), and an adjustment sub-shaft (803). The stamping chain (801) bypasses the adjustment shaft (802) and the adjustment sub-shaft (803). The adjustment shaft (802), the adjustment sub-shaft (803) and the adjustment slider (13) are rotationally connected. An adjustment rocker (804) is provided on the adjustment shaft (802), and the adjustment rocker (804) is rotationally connected to the adjustment slider (13). Teeth are provided on the stamping column (9), and the teeth on the stamping column (9) are engaged with the stamping chain (801).

3. The intelligent stamping die that automatically adjusts the punching force based on the material hardness according to claim 1, characterized in that: The punching column (9) includes a support sleeve (901), the support sleeve (901) is provided with teeth, the support sleeve (901) is engaged with the punching chain (801) through the teeth, a sliding rod (902) is provided in the support sleeve (901), the sliding rod (902) is slidably connected to the support sleeve (901), the sliding rod (902) is connected to the punching hydraulic rod (4), the detection support (11) is provided in the sliding rod (902), the detection support (11) is slidably connected to the sliding rod (902), and a cooling ring (903) is provided near the sliding rod (902) of the upper mold (2), and the cooling ring (903) is connected to the cold water tank.

4. The intelligent stamping die that automatically adjusts the punching force based on the material hardness according to claim 3, characterized in that: The detection pillar (11) is provided with a detection probe (1101), the detection probe (1101) is slidably connected to the detection pillar (11), a micro-resistor (1102) is provided in the detection pillar (11), a micro-ring (1103) is provided on the detection probe (1101), the micro-ring (1103) is sleeved on the micro-resistor (1102) and is in sliding contact with the micro-resistor (1102), and the micro-resistor (1102) and the micro-ring (1103) are connected to the stamping hydraulic rod (4) via a wire.

5. The intelligent stamping die that automatically adjusts the punching force based on the material hardness according to claim 4, characterized in that: The support sleeve (901) is provided with an anti-stuck groove, an anti-snapping ring (904) is provided on the anti-stuck groove, the anti-snapping ring (904) is rotatably connected to the anti-stuck groove, a plurality of anti-stuck columns (905) are provided on the anti-stuck ring (904), each anti-stuck column (905) is provided with an anti-stuck spring (906), both ends of the anti-stuck spring (906) respectively abut against the anti-stuck ring (904) and the anti-stuck column (905), the sliding rod (902) is provided with a plurality of release rollers (907), the release rollers (907) are provided with teeth, the anti-snapping ring (904) is provided with a plurality of blocking pieces (908), the blocking pieces (908) are slidably connected to the anti-snapping ring (904), and the blocking pieces (908) are engaged with the teeth on the release rollers (907).

6. The intelligent stamping die that automatically adjusts the punching force based on the material hardness according to claim 1, characterized in that: The anti-skid assembly (7) includes an anti-skid plate (701), a plurality of anti-skid probes (702) are provided on the anti-skid plate (701), the anti-skid plate (701) is slidably connected to the lower mold (3), a trigger pillar (703) is provided on the lower mold (3), teeth are provided on the trigger pillar (703), a trigger gear (704) is provided on the lower mold (3), the trigger pillar (703) and the trigger gear (704) are meshed through the teeth, the anti-skid plate (701) is provided with teeth, the teeth on the anti-skid plate (701) are meshed with the trigger gear (704), the trigger pillar (703) and the trigger gear (704) are meshed away from the anti-skid plate (701), a trigger spring (705) is provided on the trigger pillar (703), and the two ends of the trigger spring (705) respectively press against the trigger pillar (703) and the lower mold (3).

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