Stamping device with damage detection function

By using airbags and pressure sensors in the stamping device to detect the damage of stamping parts, the problem of difficult screening of damaged parts in automated production in stamping processing is solved, and efficient quality control of stamping parts and equipment cooling and heat dissipation is achieved.

CN119239027AActive Publication Date: 2025-01-03KEMET ELECTRONICS (NANJING) CO LTD
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Patent Information

Application Number
CN202411339967.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-25
Publication Date
2025-01-03
Estimated Expiration
2044-09-25

AI Technical Summary

Technical Problem

During stamping processing, it is difficult to screen damaged stamping parts caused by plate quality problems in automated production, causing them to flow into the subsequent process and affecting product quality.

Method used

A stamping device with damage detection function was designed. By setting airbags and pressure sensors at the bottom of the stamping die, the gas extruded by the airbags detects damage on the surface of the material, and determines whether there is damage through the control system, thereby reminding the subsequent process screening. Remove unqualified parts.

Benefits of technology

Effective damage detection of stamped parts is realized, the accuracy of screening of product quality is improved, and the damaged parts are avoided entering the subsequent process, while cooling the equipment through gas heat dissipation of the airbag.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a stamping device with a damage detection function, and belongs to the technical field of stamping. The automatic stamping device comprises a support, a control system, a stamping table, a die sliding rail, a stamping die and a driving mechanism, the die sliding rail is arranged on the stamping table, the stamping die is arranged in the die sliding rail in a sliding mode, a pair of mounting plates are arranged on the die sliding rail, the driving mechanism is arranged on the support, and the driving mechanism is in circuit connection with the control system. The driving mechanism is rotationally connected with the pair of mounting plates, the driving mechanism is slidably connected with the stamping die, the driving mechanism comprises two sets of distance adjusting movement assemblies and a guide slide way, the guide slide way is located above the stamping die, and the two sets of distance adjusting movement assemblies are symmetrically arranged on the two sides of the guide slide way; and the offset distance sliding block is adjusted through the self-locking motor and the driving motor to change the stamping stroke of the stamping die, and the effect of adjusting the stamping stroke for plates with different thicknesses is achieved.
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Description

Technical Field

[0001] The invention relates to the field of stamping technology, in particular to a stamping device with a damage detection function. Background Art

[0002] A stamping machine is a machine tool designed for workpieces that require special one-time or continuous forming. Through the application of various molds, it can produce product shapes that cannot be achieved by mechanical processing. A stamping machine is also called a stamping press. Stamping processing has the advantages of saving materials, high efficiency, and low technical requirements for operators compared to traditional mechanical processing. Stamping production is mainly for plates. Through molds, blanking, punching, forming, shaping, riveting and extrusion can be achieved. Therefore, its uses are becoming more and more extensive, such as cupboards, plates, computer cases, etc. used in daily life. However, there are certain problems in stamping processing. When there are quality problems with the stamped plate, the stamping force is uneven during the stamping process, and the defects will be magnified, resulting in the stamping parts failing to pass the quality acceptance and almost unable to be screened out in the automated production process. Therefore, damaged stamping parts often flow into subsequent processes. Summary of the invention

[0003] The object of the present invention is to provide a punching device with a damage detection function to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a stamping device with a damage detection function, comprising a support, a control system, a stamping table, a mold slide, a stamping mold and a driving mechanism, wherein the mold slide is arranged on the stamping table, the stamping mold is slidably arranged in the mold slide, a pair of mounting plates are arranged on the mold slide, the driving mechanism is arranged on the support, the driving mechanism is connected to the control system circuit, the driving mechanism is rotatably connected to the pair of mounting plates, the driving mechanism is slidably connected to the stamping mold, and the driving mechanism includes two groups of distance adjustment motion components and a guide slide, the guide slide is located above the stamping mold, and the two groups of the distance adjustment motion components are symmetrically arranged on both sides of the guide slide.

[0005] Furthermore, a material discharge cavity is opened in the middle of the stamping table, and the material discharge cavity is connected with the outside. A pair of multi-stage push rods are installed inside the material discharge cavity, and the multi-stage push rods are connected with the control system. Two multi-stage push rods are connected with the same material discharge scraper rod. A material discharge groove is opened between the material discharge cavity and the top of the stamping table. The stamping die cooperates with the material discharge groove to stamp the material, and the stamped material falls into the material discharge cavity through the material discharge groove. The control system controls the movement of the multi-stage push rod, and the multi-stage push rod drives the material discharge scraper rod to move. The material discharge scraper rod pushes the material out of the material discharge cavity and then resets.

[0006] Furthermore, a rectangular annular groove is provided at the bottom of the stamping die, and a fixed pressure block is slidably installed in the rectangular annular groove. The contour of the fixed pressure block is the same as the shape of the rectangular annular groove. A number of springs are arranged between the fixed pressure block and the stamping die. Air holes are provided in the middle of the stamping die from top to bottom, and a grid-shaped shallow groove is provided at the bottom of the stamping die. The air holes intersect with the grid-shaped shallow groove. Before the stamping die stamps the material, the fixed pressure block first contacts the material, and with the help of the pushing force of the spring on the fixed pressure block, the material is firmly pressed on the stamping table to prevent the material from moving during the stamping process and improve the stamping accuracy.

[0007] Furthermore, a pair of lower sliding rails are arranged on the top of the stamping die, and each of the distance adjusting motion components includes two inclined pressure arms, a support rod, and a connecting rod. One end of each inclined pressure arm is rotatably connected to a lower slider, and the two lower sliders are respectively slidably installed in a pair of lower sliding rails, the support rod is fixed at a middle position between the pair of inclined pressure arms, the connecting rod is connected to one side between the pair of inclined pressure arms away from the lower slider, and the support rod is rotatably installed between a pair of mounting plates.

[0008] The cam is connected with the upper and lower sliding plates, and the two ends of the upper and lower sliding plates are connected with side connecting plates. Each of the distance adjusting motion components also includes a hollow slider and a slider connecting rod. The hollow slider is slidably arranged between the upper and lower sliding plates, and a vertical slider is opened in the middle of the hollow slider. The connecting rod is slidably installed in the hollow slider, and the slider connecting rod is rotatably connected with the hollow slider. When the two hollow sliders approach each other, the hollow slider pushes the connecting rod to move, and the connecting rod drives the diagonal pressure arm to swing with the support rod as the rotation center. Since the connecting rod can slide in the hollow slider, the degree of freedom in the height direction is not constrained, and the horizontal force of the hollow slider is transmitted. The other end of the diagonal pressure arm is opposite to the movement direction of the connecting rod. Since the diagonal pressure arm is connected to the stamping die through the lower slider, the lower slider slides on the stamping die and cannot transmit force in the horizontal direction. It only drives the stamping die to move up and down along the die slide rail to realize the stamping operation of the stamping die.

[0009] Furthermore, each group of the pitch adjustment motion components also includes a driving motor, an inertia wheel and an adjusting disk, the driving motor is installed on a support, the inertia wheel is arranged on the motor shaft of the driving motor, the adjusting disk is rotatably arranged inside the inertia wheel, a gear ring is arranged on the side of the adjusting disk close to the driving motor, the gear ring passes through the adjusting disk, a self-locking motor is installed above the driving motor, a locking gear is connected to the self-locking motor, the locking gear is meshed with the gear ring for transmission, the driving motor drives the inertia wheel to rotate, the inertia wheel drives the crank connecting rod to move through the offset slider, and the crank connecting rod drives the hollow slider to slide in the guide slide through the slider connecting rod.

[0010] Furthermore, a pitch-adjusting groove is provided on a side of the inertia wheel away from the driving motor, and a pitch-adjusting slider is slidably installed in the pitch-adjusting groove. A flat spiral groove is provided on one surface of the adjusting disk, and a flat spiral groove is also provided on the offset slider. The offset slider contacts the adjusting disk through the side with the flat spiral groove. A crank connecting rod is rotatably connected to the offset slider, and the crank connecting rod is rotatably connected to the slider connecting rod. The adjusting disk and the gear ring are integrally arranged. During normal operation, the adjusting disk rotates synchronously with the rotation of the inertia wheel, and the self-locking motor rotates freely by the locking gear. When the self-locking motor locks the locking gear, the locking gear fixes the gear ring and the adjusting disk, and the driving motor still drives the inertia wheel to rotate. Since the adjusting disk is fixed, the offset slider The block moves driven by the inertia wheel, and the offset slider slides in the adjusting groove under the guidance of the plane spiral groove to adjust the distance between the offset slider and the rotation center of the inertia wheel. When the offset slider is closer to the rotation center of the inertia wheel, the movement amplitude of the crank connecting rod is smaller, the displacement amplitude of the hollow slider driven by the slider connecting rod in the guide slideway is smaller, and the stamping stroke of the stamping die is shorter. When the offset slider is farther away from the rotation center of the inertia wheel, the movement amplitude of the crank connecting rod is larger, the displacement amplitude of the hollow slider driven by the slider connecting rod in the guide slideway is larger, and the stamping stroke of the stamping die is longer. The offset slider is adjusted by the self-locking motor and the drive motor to change the stamping stroke of the stamping die, thereby realizing the function of adjusting the stamping stroke for plates of different thicknesses.

[0011] Furthermore, an airbag is arranged between the two hollow sliders, and the two sides of the airbag are connected to the two hollow sliders. The airbag is connected to a jet tube, and one end of the jet tube is connected to the air hole. Each time the stamping die performs a stamping operation, the two hollow sliders squeeze the airbag back, and the gas in the airbag is squeezed to the bottom of the stamping die through the jet tube. The bottom of the stamping die contacts the stamping material. When the material is stamped into the feeding slot, the surroundings and the top of the material are in a surrounded and sealed state, and the gas in the airbag is dispersed to the surface of the material through the grid-shaped shallow groove.

[0012] Furthermore, a pin hole is provided at the bottom of the stamping die, a sliding pin is slidably installed in the pin hole, a reset spring is provided between the sliding pin and the stamping die, a pressure sensor is provided in the pin hole, and the pressure sensor is connected to the control system through a circuit. If the surface of the punched material is flat and undamaged, the gas will be further pressed into the pin hole to push the sliding pin to move, and the sliding pin will contact the pressure sensor. The pressure sensor determines that the surface of the punched material is flat and undamaged through the control system. If the surface of the punched material is damaged, the gas will diffuse out from the damaged position, and the pressure sensor will not be touched by the sliding pin. Therefore, the control system determines that the surface of the punched material is damaged, thereby reminding the subsequent process to screen out the stamped part. At the same time, the gas squeezed out by the airbag during each stamping can effectively cool down and dissipate the heat of the stamping part, so that the air squeezed out by the airbag can not only detect the damage of the material, but also effectively cool down and dissipate the heat of the equipment.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are: When the offset slider is closer to the rotation center of the inertia wheel, the movement amplitude of the crank connecting rod is smaller, the displacement amplitude of the hollow slider in the guide slideway is smaller, and the stamping stroke of the stamping die is shorter. Conversely, the stamping stroke of the stamping die is longer. The stamping stroke of the stamping die is changed by adjusting the offset slider through the self-locking motor and the drive motor, so that the stamping stroke can be adjusted for plates of different thicknesses. During each stamping, the gas squeezed out by the airbag effectively cools and dissipates the heat of the stamping part, so that the air squeezed out by the airbag can not only detect the damage of the material, but also effectively cool and dissipate the heat of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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: Figure 1 The overall appearance structure of the present invention is schematically shown Figure 1 ; Figure 2 The overall appearance structure of the present invention is schematically shown Figure 2 ; Figure 3 It is a partial structural schematic diagram of the present invention; Figure 4 It is a partial structural connection schematic diagram of the present invention; Figure 5 It is a schematic diagram of the internal structure of the stamping die of the present invention; Figure 6 It is a structural schematic diagram of the adjustment disk part of the present invention; Figure 7 It is a structural schematic diagram of the punching table of the present invention; In the figure: 1. stamping table; 2. unloading scraper rod; 3. multi-stage push rod; 4. mold slide rail; 5. stamping mold; 6. fixed pressure block; 8. spring; 9. lower slide rail; 10. inclined pressure arm; 11. support rod; 12. connecting rod; 13. mounting plate; 141. upper slide plate; 142. lower slide plate; 143. side connecting plate; 15. hollow slider; 16. slider connecting rod; 17. air bag; 18. jet pipe; 19. drive motor; 20. self-locking motor; 21. inertia wheel; 22. offset slider; 23. adjustment disk; 24. gear ring; 25. locking gear; 26. crank connecting rod; 27. sliding pin. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-Figure 7 The present invention provides a technical solution: a stamping device with a damage detection function, including a support, a control system, a stamping table 1, a die slide 4, a stamping die 5 and a driving mechanism, the die slide 4 is arranged on the stamping table 1, the stamping die 5 is slidably arranged in the die slide 4, a pair of mounting plates 13 are arranged on the die slide 4, the driving mechanism is arranged on the support, the driving mechanism is connected to the control system circuit, the driving mechanism is rotatably connected to the pair of mounting plates 13, the driving mechanism is slidably connected to the stamping die 5, the driving mechanism includes two groups of distance adjustment motion components and a guide slide, the guide slide is located above the stamping die 5, and the two groups of distance adjustment motion components are symmetrically arranged on both sides of the guide slide.

[0017] A material discharge cavity is provided in the middle of the punching table 1, which is connected to the outside. A pair of multi-stage push rods 3 are installed inside the material discharge cavity. The multi-stage push rods 3 are connected to the control system. The two multi-stage push rods 3 are connected to the same material discharge scraper rod 2. A material discharge through groove is provided between the material discharge cavity and the top of the punching table 1. A rectangular annular groove is provided at the bottom of the punching die 5. A fixed pressing block 6 is slidably installed in the rectangular annular groove. The contour of the fixed pressing block 6 is the same as that of the rectangular annular groove. A plurality of springs 8 are provided between the fixed pressing block 6 and the punching die 5. An air hole is provided in the middle of the punching die 5, which passes through from top to bottom. A grid-shaped shallow groove is provided at the bottom of the stamping die 5, and the air holes intersect with the grid-shaped shallow groove. Before the stamping die 5 stamps the material, the fixed pressing block 6 first contacts the material, and with the help of the pushing force of the spring 8 on the fixed pressing block 6, the material is firmly pressed on the stamping table 1 to prevent the material from moving during the stamping process and improve the stamping accuracy. The stamping die 5 cooperates with the blanking slot to stamp the material, and the stamped material falls into the blanking cavity through the blanking slot. The control system controls the movement of the multi-stage push rod 3, and the multi-stage push rod 3 drives the blanking scraper rod 2 to move. The blanking scraper rod 2 pushes the material out of the blanking cavity and then resets.

[0018] Each set of pitch adjustment motion components also includes a driving motor 19, an inertia wheel 21 and an adjusting disk 23. The driving motor 19 is installed on a support, the inertia wheel 21 is arranged on the motor shaft of the driving motor 19, the adjusting disk 23 is rotatably arranged inside the inertia wheel 21, a gear ring 24 is arranged on the side of the adjusting disk 23 close to the driving motor 19, the gear ring 24 penetrates the adjusting disk 23, a self-locking motor 20 is installed above the driving motor 19, a locking gear 25 is connected to the self-locking motor 20, the locking gear 25 is meshed with the gear ring 24 for transmission, a pitch adjustment groove is provided on the side of the inertia wheel 21 away from the driving motor 19, an offset slider 22 is slidably installed in the pitch adjustment groove, a plane spiral groove is provided on one surface of the adjusting disk 23, a plane spiral groove is also provided on the offset slider 22, the offset slider 22 contacts with the adjusting disk 23 through the side with the plane spiral groove, and a crank is rotatably connected to the offset slider 22 The connecting rod 26, the crank connecting rod 26 are rotatably connected with the slider connecting rod 16, the driving motor 19 drives the inertia wheel 21 to rotate, the inertia wheel 21 drives the crank connecting rod 26 to move through the offset slider 22, the crank connecting rod 26 drives the hollow slider 15 to slide in the guide slideway through the slider connecting rod 16, the adjusting disk 23 and the gear ring 24 are integrally arranged, and during normal operation, the adjusting disk 23 rotates synchronously with the rotation of the inertia wheel 21, the self-locking motor 20 is freely rotated by the locking gear 25, when the self-locking motor 20 locks the locking gear 25, the locking gear 25 makes the gear ring 24 and the adjusting disk 23 fixed, the driving motor 19 still drives the inertia wheel 21 to rotate, because the adjusting disk 23 is fixed, the offset slider 22 moves under the drive of the inertia wheel 21, the offset slider 22 slides in the distance adjustment groove under the guidance of the planar spiral groove, and the distance between the offset slider 22 and the rotation center of the inertia wheel 21 is adjusted.

[0019] A pair of lower rails 9 are arranged on the top of the stamping die 5. Each distance adjustment motion assembly includes two inclined pressure arms 10, a support rod 11, and a connecting rod 12. One end of each inclined pressure arm 10 is rotatably connected to a lower slider. The two lower sliders are slidably installed in a pair of lower rails 9 respectively. The support rod 11 is fixed at the middle position between the pair of inclined pressure arms 10. The connecting rod 12 is connected to the side away from the lower slider between the pair of inclined pressure arms 10. The support rod 11 is rotatably installed between a pair of mounting plates 13. The guide slide includes an upper slide plate 141 and a lower slide plate 142. The upper slide plate 141 Both ends of the upper and lower slide groove plates 142 are connected with side connecting plates 143. Each distance adjustment motion component also includes a hollow slider 15 and a slider connecting rod 16. The hollow slider 15 is slidably arranged between the upper slide groove plate 141 and the lower slide groove plate 142. A vertical slide groove is opened in the middle of the hollow slider 15. The connecting rod 12 is slidably installed in the hollow slider 15. The slider connecting rod 16 is rotatably connected to the hollow slider 15. When the two hollow sliders 15 approach each other, the hollow slider 15 pushes the connecting rod 12 to move, and the connecting rod 12 drives the diagonal pressure arm 10 to swing with the support rod 11 as the rotation center. Since the connecting rod 12 can slide in the hollow slider 15, the degree of freedom in the height direction is not constrained, and the horizontal force of the hollow slider 15 is transmitted. The other end of the inclined pressure arm 10 is opposite to the movement direction of the connecting rod 12. Since the inclined pressure arm 10 is connected to the stamping die 5 through the lower slider, the lower slider slides on the stamping die 5 and cannot transmit the horizontal force. It only drives the stamping die 5 to move up and down along the die slide rail 4 to realize the stamping operation of the stamping die 5. The closer the distance between the offset slider 22 and the rotation center of the inertia wheel 21 is, the closer the crank connecting rod 26 is. The smaller the movement amplitude, the smaller the displacement amplitude of the hollow slider 15 driven by the slider connecting rod 16 in the guide slideway, and the shorter the stamping stroke of the stamping die 5; the farther the distance between the offset slider 22 and the rotation center of the inertia wheel 21, the greater the movement amplitude of the crank connecting rod 26, the greater the displacement amplitude of the hollow slider 15 driven by the slider connecting rod 16 in the guide slideway, and the longer the stamping stroke of the stamping die 5. The offset slider 22 is adjusted by the self-locking motor 20 and the drive motor 19 to change the stamping stroke of the stamping die 5, thereby realizing the function of adjusting the stamping stroke for plates of different thicknesses.

[0020] An airbag 17 is arranged between the two hollow sliders 15, and the two sides of the airbag 17 are connected to the two hollow sliders 15. An air jet pipe 18 is connected to the airbag 17, and one end of the air jet pipe 18 is connected to the air hole. A pin hole is also provided at the bottom of the stamping die 5, and a sliding pin 27 is slidably installed in the pin hole. A reset spring is arranged between the sliding pin 27 and the stamping die 5. A pressure sensor is arranged in the pin hole, and the pressure sensor is connected to the control system through a circuit. Each time the stamping die 5 performs a stamping operation, the two hollow sliders 15 will squeeze the airbag 17, and the gas in the airbag 17 is squeezed to the bottom of the stamping die 5 through the air jet pipe 18. The bottom of the stamping die 5 contacts the stamping material. When the material is stamped into the feeding slot, the surrounding and top of the material are surrounded. In the sealed state, the gas of the airbag 17 is dispersed to the surface of the material through the grid-shaped shallow grooves. If the surface of the punched material is smooth and undamaged, the gas will be further pressed into the pin hole to push the sliding pin 27 to move. The sliding pin 27 contacts the pressure sensor. The pressure sensor determines through the control system that the surface of the punched material is smooth and undamaged. If the surface of the punched material is damaged, the gas will diffuse from the damaged position, and the pressure sensor will not be touched by the sliding pin 27. Therefore, the control system determines that the surface of the punched material is damaged, thereby reminding the subsequent process to screen out the stamped part. At the same time, the gas squeezed out by the airbag 17 during each stamping effectively cools and dissipates the heat of the stamping part, so that the air squeezed out by the airbag 17 can not only detect the damage of the material, but also effectively cool and dissipate the heat of the equipment.

[0021] The working principle of the present invention is as follows: before the stamping die 5 stamps the material, the fixed pressing block 6 first contacts the material, and with the help of the pushing force of the spring 8 on the fixed pressing block 6, the material is firmly pressed on the stamping table 1 to prevent the material from moving during the stamping process and improve the stamping accuracy. The stamping die 5 cooperates with the blanking slot to stamp the material, and the stamped material falls into the blanking cavity through the blanking slot. The control system controls the movement of the multi-stage push rod 3, and the multi-stage push rod 3 drives the blanking scraper rod 2 to move. The blanking scraper rod 2 pushes the material out of the blanking cavity and then resets.

[0022] The driving motor 19 drives the inertia wheel 21 to rotate, and the inertia wheel 21 drives the crank connecting rod 26 to move through the offset slider 22. The crank connecting rod 26 drives the hollow slider 15 to slide in the guide slideway through the slider connecting rod 16. The adjusting disk 23 and the gear ring 24 are integrally arranged. During normal operation, the adjusting disk 23 rotates synchronously with the rotation of the inertia wheel 21, and the self-locking motor 20 rotates freely by the locking gear 25. When the self-locking motor 20 locks the locking gear 25, the locking gear 25 makes the gear ring 24 and the adjusting disk 23 fixed, and the driving motor 19 still drives the inertia wheel 21 to rotate. Since the adjusting disk 23 is fixed, the offset slider 22 moves driven by the inertia wheel 21, and the offset slider 22 slides in the adjustment groove under the guidance of the planar spiral groove to adjust the distance between the offset slider 22 and the rotation center of the inertia wheel 21.

[0023] When the two hollow sliders 15 are close to each other, the hollow slider 15 pushes the connecting rod 12 to move, and the connecting rod 12 drives the diagonal pressure arm 10 to swing with the support rod 11 as the rotation center. Since the connecting rod 12 can slide in the hollow slider 15, the degree of freedom in the height direction is not constrained, and the horizontal force of the hollow slider 15 is transmitted. The other end of the diagonal pressure arm 10 moves in the opposite direction to the connecting rod 12. Since the diagonal pressure arm 10 is connected to the stamping die 5 through the lower slider, the lower slider slides on the stamping die 5 and cannot transmit the horizontal force. It only drives the stamping die 5 to move up and down along the die slide rail 4 to realize the stamping operation of the stamping die 5. The closer the offset slider 22 is to the rotation center of the inertia wheel 21, the smaller the movement amplitude of the crank connecting rod 26, the smaller the displacement amplitude of the hollow slider 15 driven by the slider connecting rod 16 in the guide slideway, and the shorter the stamping stroke of the stamping die 5; the farther the offset slider 22 is from the rotation center of the inertia wheel 21, the greater the movement amplitude of the crank connecting rod 26, the greater the displacement amplitude of the hollow slider 15 driven by the slider connecting rod 16 in the guide slideway, and the longer the stamping stroke of the stamping die 5. The offset slider 22 is adjusted by the self-locking motor 20 and the drive motor 19 to change the stamping stroke of the stamping die 5, thereby realizing the function of adjusting the stamping stroke for plates of different thicknesses.

[0024] Each time the stamping die 5 performs a stamping operation, the two hollow sliders 15 will squeeze the airbags 17, and the gas in the airbags 17 will be squeezed to the bottom of the stamping die 5 through the air jet pipe 18. The bottom of the stamping die 5 is in contact with the stamping material. When the material is stamped into the material discharge slot, the surroundings and the top of the material are in a sealed state. The gas in the airbags 17 is dispersed to the surface of the material through the grid-like shallow grooves. If the surface of the material being stamped is flat and undamaged, the gas will be further pressed into the pin hole to push the sliding pin 27 to move, and the sliding pin 27 is connected to the pressure sensor. The pressure sensor determines through the control system that the surface of the punched material is flat and undamaged. If the surface of the punched material is damaged, the gas will diffuse out from the damaged position, and the pressure sensor will not be touched by the sliding pin 27. Therefore, the control system determines that the surface of the punched material is damaged, thereby reminding the subsequent process to screen out the stamped part. At the same time, the gas squeezed out by the airbag 17 during each stamping effectively cools and dissipates the heat of the stamping part, so that the air squeezed out by the airbag 17 can not only detect the damage of the material, but also effectively cool and dissipate the heat of the equipment.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is 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 can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A punching device with a damage detection function, characterized in that: The invention comprises a support, a control system, a stamping table (1), a die slide rail (4), a stamping die (5) and a driving mechanism, wherein the die slide rail (4) is arranged on the stamping table (1), the stamping die (5) is slidably arranged in the die slide rail (4), a pair of mounting plates (13) are arranged on the die slide rail (4), the driving mechanism is arranged on the support, the driving mechanism is connected to the control system circuit, the driving mechanism is rotatably connected to the pair of mounting plates (13), the driving mechanism is slidably connected to the stamping die (5), and the driving mechanism comprises two groups of distance adjustment motion components and a guide slideway, the guide slideway is located above the stamping die (5), and the two groups of distance adjustment motion components are symmetrically arranged on both sides of the guide slideway.

2. A punching device with damage detection function according to claim 1, characterized in that: A material discharge cavity is provided in the middle of the punching table (1), the material discharge cavity is communicated with the outside, a pair of multi-stage push rods (3) are installed inside the material discharge cavity, the multi-stage push rods (3) are connected to a control system, two multi-stage push rods (3) are connected to the same material discharge scraper (2), and a material discharge slot is provided between the material discharge cavity and the top of the punching table (1).

3. A punching device with damage detection function according to claim 2, characterized in that: A rectangular annular groove is provided at the bottom of the punching die (5), a fixed pressure block (6) is slidably mounted in the rectangular annular groove, the profile of the fixed pressure block (6) being the same as the shape of the rectangular annular groove, a plurality of springs (8) are provided between the fixed pressure block (6) and the punching die (5), an air hole is provided in the middle of the punching die (5) from top to bottom, a grid-shaped shallow groove is provided at the bottom of the punching die (5), and the air hole intersects with the grid-shaped shallow groove.

4. A punching device with damage detection function according to claim 3, characterized in that: A pair of lower sliding rails (9) are arranged on the top of the stamping die (5), and each of the adjustable distance motion components comprises two inclined pressure arms (10), a support rod (11), and a connecting rod (12). One end of each inclined pressure arm (10) is rotatably connected to a lower slider, and the two lower sliders are respectively slidably mounted in the pair of lower sliding rails (9). The support rod (11) is fixedly connected to the middle position between the pair of inclined pressure arms (10), and the connecting rod (12) is connected to a side of the pair of inclined pressure arms (10) away from the lower slider. The support rod (11) is rotatably mounted between a pair of mounting plates (13).

5. A punching device with damage detection function according to claim 4, characterized in that: The guide slide comprises an upper slide groove plate (141) and a lower slide groove plate (142), both ends of the upper slide groove plate (141) and the lower slide groove plate (142) are connected to side connecting plates (143), each of the distance adjustment motion components also comprises a hollow slider (15) and a slider connecting rod (16), the hollow slider (15) is slidably arranged between the upper slide groove plate (141) and the lower slide groove plate (142), a vertical slide groove is opened in the middle of the hollow slider (15), the connecting rod (12) is slidably installed in the hollow slider (15), and the slider connecting rod (16) is rotatably connected to the hollow slider (15).

6. A punching device with damage detection function according to claim 5, characterized in that: Each set of the pitch adjustment motion assembly further comprises a driving motor (19), an inertia wheel (21) and an adjusting disk (23); the driving motor (19) is mounted on a support; the inertia wheel (21) is arranged on a motor shaft of the driving motor (19); the adjusting disk (23) is rotatably arranged inside the inertia wheel (21); a gear ring (24) is arranged on a side of the adjusting disk (23) close to the driving motor (19); the gear ring (24) penetrates the adjusting disk (23); a self-locking motor (20) is mounted above the driving motor (19); a locking gear (25) is connected to the self-locking motor (20); the locking gear (25) is meshed with the gear ring (24) for transmission.

7. A punching device with damage detection function according to claim 6, characterized in that: A pitch adjustment groove is provided on a side of the inertia wheel (21) away from the drive motor (19), and a pitch offset slider (22) is slidably mounted in the pitch adjustment groove. A planar spiral groove is provided on one surface of the adjustment disk (23), and a planar spiral groove is also provided on the pitch offset slider (22). The pitch offset slider (22) contacts the adjustment disk (23) via the side on which the planar spiral groove is provided. A crank connecting rod (26) is rotatably connected to the pitch offset slider (22), and the crank connecting rod (26) is rotatably connected to the slider connecting rod (16).

8. A punching device with damage detection function according to claim 7, characterized in that: An air bag (17) is arranged between the two hollow sliders (15), and two sides of the air bag (17) are connected to the two hollow sliders (15). An air jet tube (18) is connected to the air bag (17), and one end of the air jet tube (18) is connected to the air hole.

9. The punching device with damage detection function according to claim 1, characterized in that: A pin hole is also provided at the bottom of the punching die (5), a sliding pin (27) is slidably mounted in the pin hole, a reset spring is provided between the sliding pin (27) and the punching die (5), a pressure sensor is provided in the pin hole, and the pressure sensor is connected to a control system via a circuit.

Citation Information

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