Stamping die for metal plate machining

Abstract

The invention discloses a stamping die for metal plate processing, and belongs to the technical field of stamping dies, the stamping die comprises an upper stamping die and a lower stamping die, one side of the lower stamping die is provided with an outer groove, a die blocking cover is embedded in the outer groove, and the lower stamping die is internally provided with a mounting groove and a sliding hole. Connecting columns are fixedly mounted at the four corners of the bottom face of the upper stamping die and slidably mounted in the mounting grooves. According to the punching device, the built-in cleaning mechanism is arranged in a matched mode, through the design, stable cleaning of a punching material can be achieved in the punching process of the punching material, metal particles left on the surface of the punching material can be removed, it is effectively avoided that a large number of pits are generated on the surface of the residual punched material, and the quality of a punched product is guaranteed; and meanwhile, a gas speed increasing structure is further arranged in the mold, generated gas flow can be subjected to certain speed increasing treatment, and the material cleaning effect is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of stamping dies, and particularly relates to a stamping die for processing metal sheets. Background Art

[0002] A stamping die is a special tool for processing the forming of metal sheets. Through the cooperation of a press and the die, the metal sheet is stamped into parts with specific shapes and sizes. It is a key equipment for realizing efficient and large-scale production in modern manufacturing, and is widely used in fields such as automobiles, electronics, household appliances, and aerospace.

[0003] Chinese Patent (CN118768471B) discloses a fully automatic stamping die for processing metal plates, which relates to the field of metal plate processing, including a lower die base and an upper die base. A hydraulic component is fixedly installed in the middle end of the lower die base, and the upper die base is bolted to the upper end of the hydraulic component. And on both sides of the upper surface of the lower die base, reserved cavities are opened, and the reserved cavities correspond to the position of the upper die base. The fixed guide rod connected to the lower end of the fully automatic stamping die for processing metal plates will apply pressure to the contacting abutting member, so that the abutting member moves upward under force, and simultaneously apply force to the movable ejecting member with a wedge-shaped structure in contact. During the process of the movable ejecting member being stressed, the tension return spring is stretched and the movable ejecting member moves outward. Thus, while the sealing movable member is reset to make the reserved cavity form an unfolded state, the formed material is subjected to self-discharging blanking treatment by the outwardly moving movable ejecting member, without the user manually or through auxiliary equipment to take it out, and it can quickly and stably adaptively discharge and cool. Although today's sheet metal stamping dies can also complete the stamping forming of sheets, there is no structure inside them that can synchronously clean the stamping material after the stamping starts. Often, there will be some metal particle debris remaining on the stamping material, which is extremely easy to be ignored. After stamping and forming, there will be many small pits on its surface, affecting the product quality. And during the stamping process, some materials with smaller volumes will displace instantaneously under force, resulting in uneven overall force and also affecting the finished product quality. To solve the above problems, there is an urgent need for a stamping die for processing metal sheets. Summary of the Invention

[0004] The purpose of the present invention is to: solve the problem that although today's sheet metal stamping dies can also complete the stamping forming of sheets, there is no structure inside them that can synchronously clean the stamping material after the stamping starts. Often, there will be some metal particle debris remaining on the stamping material, which is extremely easy to be ignored. After stamping and forming, there will be many small pits on its surface, affecting the product quality. And during the stamping process, some materials with smaller volumes will displace instantaneously under force, resulting in uneven overall force and also affecting the finished product quality, and to propose a stamping die for processing metal sheets.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A stamping die for metal sheet processing, including an upper stamping die and a lower stamping die. One side of the lower stamping die is provided with an outer groove, and a die cover is inlaid and installed in the outer groove. An installation groove and a sliding hole are arranged inside the lower stamping die. Connecting columns are fixedly installed at the four corners of the bottom surface of the upper stamping die, and the connecting columns are slidably installed inside the installation groove. A stamping block is fixedly installed at the center position of the bottom surface of the upper stamping die. Limit sliding rods are fixedly installed on both sides of the bottom surface of the upper stamping die, and one end of the limit sliding rod is slidably installed inside the sliding hole. A sleeve spring is sleeved outside the limit sliding rod, and the bottom end of the sleeve spring is in close contact with the top surface of the lower stamping die; An internal cleaning mechanism is arranged in the cavity of the lower stamping die. The internal cleaning mechanism is used to clean the metal particle impurities adhered to the surface of the stamping material. A material centering and positioning component is movably installed on the inner wall of the bottom surface of the lower stamping die. The material centering and positioning component is used for the centering force of the stamping material. An adsorption and recovery component is arranged on the inner wall of the bottom surface of the lower stamping die. The adsorption and recovery component is used for the stable recovery of the metal impurities cleaned from the stamping material.

[0006] As a further description of the above technical solution: The internal cleaning mechanism includes a first air duct and a second air duct. The second air duct is fixedly installed below the first air duct through a connecting air duct. The first air duct and the second air duct have the same specifications. An air flow converging component is fixedly installed on the bottom surface of the second air duct through an air duct.

[0007] As a further description of the above technical solution: The air flow converging component includes an air flow converging cover. A side cover is fixedly installed on the outer wall of one side of the air flow converging cover. An air outlet duct is fixedly installed on the outer wall of one side of the side cover. An air flow accelerating spiral disc is fixedly installed inside the air flow converging cover.

[0008] As a further description of the above technical solution: An air inlet is arranged at the top of the air flow accelerating spiral disc, and an air outlet is arranged at the bottom of the air flow accelerating spiral disc. A plurality of exhaust holes are arranged on the inner surface of the lower stamping die, and the exhaust holes are located on one side of the air outlet duct.

[0009] As a further description of the above technical solution: A flow disturbing component is rotatably installed inside the first air duct and the second air duct. The flow disturbing component includes a mounting shaft, and the mounting shaft is rotatably installed inside the first air duct. A flow disturbing blade is fixedly installed outside the mounting shaft, and the flow disturbing blade is located inside the first air duct.

[0010] As a further description of the above technical solution: Both ends of the installation shaft are fixedly installed with side gears. Both side gears are located outside the first air duct. A number of first meshing teeth are fixedly installed on the outer surface of the connecting column. The side gears and the first meshing teeth are meshed and connected with each other.

[0011] As a further description of the above technical solution: The material centering and positioning assembly includes a moving plate and a bidirectional threaded shaft. The moving plate is slidably installed on the bottom surface of the installation groove. Side sliders are fixedly installed at both ends of the moving plate. The side sliders are slidably connected with side chutes arranged on the side walls of the stamping lower die. A plurality of buffer springs are fixedly installed on one outer wall of the moving plate. One ends of the plurality of buffer springs are fixedly installed with a positioning plate.

[0012] As a further description of the above technical solution: The bidirectional threaded shaft is rotatably installed on the inner wall of the side shell cavity of the stamping lower die. A central gear is fixedly installed at the middle position of the bidirectional threaded shaft. The bidirectional threaded shaft is in threaded connection with threaded holes arranged inside the side sliders. The central gear is meshed and matched with a number of second meshing teeth arranged on the outer surface of the limit slide bar.

[0013] As a further description of the above technical solution: The adsorption and recovery assembly includes an air cylinder and a telescopic air rod. The air cylinder and the telescopic air rod are both fixedly installed in the bottom shell cavity of the stamping lower die. A control switch is arranged on the upper surface of the air cylinder.

[0014] As a further description of the above technical solution: The top of the telescopic air rod is provided with an electronically controlled magnetic adsorption plate. The upper surface of the electronically controlled magnetic adsorption plate is inclined. The telescopic air rod and the air cylinder are connected through a conduit. A piston is arranged at the upper end of the air cylinder. The piston is located directly below the limit slide bar. A particle recovery hole is arranged on the inner wall of the bottom surface of the stamping lower die.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: In the present invention, by being equipped with a built-in cleaning mechanism, when performing stamping forming operations, the mold cover is opened, and the material to be stamped is placed inside the lower stamping mold. At this time, pressure is applied to the upper stamping mold, and the upper stamping mold moves downward, and the connecting column moves downward synchronously. At this time, the first engaging teeth on its outer surface can engage with the side gear, and the side gear drives the mounting shaft and the spoiler blade to rotate. The spoiler blade generates an air flow inside the first air duct, and the air flow can be conducted through the first air duct and the second air duct to the air flow converging assembly. At this time, the air flow can enter the narrow air flow accelerating volute and flow. As the air flow entering the air flow accelerating volute increases, its flow rate can be increased. Finally, the accelerated air flow can be discharged through the air outlet pipe and finally discharged through the exhaust hole. At this time, the high-speed air flow can blow towards the stamped material, blowing off some residual metal particle impurities on it, realizing synchronous cleaning of the stamped material. Through this design, stable cleaning of the stamped material can be achieved during the stamping process of the stamped material, the metal particles remaining on the surface of the stamped material can be removed, effectively avoiding a large number of pits on the surface of the material after stamping, ensuring the quality of the stamped product. At the same time, the mold is also equipped with a gas acceleration structure, which can perform a certain acceleration treatment on the generated air flow to ensure the cleaning effect on the material.

[0016] In the present invention, by being internally equipped with a material centering and positioning assembly, when stamping the material, as the upper stamping mold is pressed and descends, the limit slide rod will also descend synchronously. At this time, the second engaging teeth on its outer surface can engage with the central gear, thereby driving the bidirectional threaded shaft to rotate. When the bidirectional threaded shaft rotates, the two side sliders on its outer surface approach each other, driving the two moving plates and the positioning plates to approach each other until the two positioning plates contact the surface of the material, realizing centering and positioning of the material. When the stamping block presses on the material, it can ensure that the center of the material is pressed and prevent unnecessary displacement of the material, ensuring the pressing effect of the material. At the same time, since a buffer spring is provided between the positioning plate and the moving plate, the positioning plate and the moving plate have a certain displacement margin. When the stamped material is pressed and formed, the positioning plate will not affect its forming process, further ensuring the finished product quality of the material.

[0017] In the present invention, by internally providing an adsorption and recovery component, when the upper stamping die moves downward, the limiting slide rod can exert pressure on the top piston of the air cylinder. At this time, the air cylinder inflates the telescopic air rod through the air duct. After the telescopic air rod is inflated, its top drives the electro-controlled magnetic adsorption plate to rise. At this time, the electro-controlled magnetic adsorption plate fits at the particle recovery hole on the bottom surface of the lower stamping die. At the same time, the downward-moving piston can squeeze the control switch to control the electro-controlled magnetic adsorption plate to be energized. At this time, the metal particulate impurities cleaned by the built-in cleaning mechanism will be quickly adsorbed on the electro-controlled magnetic adsorption plate through the particle recovery hole, realizing the recovery of the cleaned metal particulate matter. Through this design, during the stamping process, while cleaning the stamping material, the synchronous recovery of the cleaning matter can be realized, avoiding the cleaning matter remaining in the die and affecting subsequent stamping. At the same time, after the work is completed, the electro-controlled magnetic adsorption plate can be controlled to be powered off, and the metal particles adsorbed on it can automatically slide off, further improving the overall use effect of the die. Description of the Drawings

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a stamping die for metal sheet processing.

[0019] Figure 2 It is an exploded three-dimensional structural schematic diagram of a stamping die for metal sheet processing.

[0020] Figure 3 It is an exploded three-dimensional structural schematic diagram of the lower stamping die in a stamping die for metal sheet processing.

[0021] Figure 4 It is a combined three-dimensional structural schematic diagram of the upper stamping die, the material centering and positioning component, the built-in cleaning mechanism and the adsorption and recovery component in a stamping die for metal sheet processing.

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the material centering and positioning component in a stamping die for metal sheet processing.

[0023] Figure 6 It is an exploded three-dimensional structural schematic diagram of the built-in cleaning mechanism in a stamping die for metal sheet processing.

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the adsorption and recovery component in a stamping die for metal sheet processing.

[0025] Figure 8 It is an exploded three-dimensional structural schematic diagram of the flow disturbance component in a stamping die for metal sheet processing.

[0026] Figure 9 It is a three-dimensional structural schematic diagram of the flow disturbance component in a stamping die for metal sheet processing.

[0027] Figure 10 For a stamping die for metal sheet processing Figure 4 The enlarged structural schematic diagram of part A in it.

[0028] Legend: 1. Upper stamping die; 2. Installation groove; 3. Lower stamping die; 4. Die cover; 5. Connecting column; 6. Stamping block; 7. Sleeve spring; 8. Limit slide bar; 9. First meshing tooth; 10. Slide hole; 11. Exhaust hole; 12. Material centering and positioning component; 121. Positioning plate; 122. Moving plate; 123. Buffer spring; 124. Bidirectional threaded shaft; 125. Side slider; 126. Central gear; 13. Built-in cleaning mechanism; 131. Turbulence component; 1311. Side gear; 1312. Turbulence blade; 1313. Installation shaft; 132. First air duct; 133. Airflow converging component; 1331. Air outlet pipe; 1332. Side cover; 1333. Airflow acceleration volute; 1334. Airflow converging cover; 134. Second air duct; 14. Adsorption and recovery component; 141. Electrically controlled magnetic adsorption plate; 142. Control switch; 143. Air cylinder; 144. Air duct; 145. Telescopic air rod; 15. Second meshing tooth. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1 - 10 , the present invention provides a technical solution: a stamping die for metal sheet processing, including an upper stamping die 1 and a lower stamping die 3. An outer groove is provided on one side of the lower stamping die 3, and a die cover 4 is inlaid and installed in the outer groove. An installation groove 2 and a slide hole 10 are provided inside the lower stamping die 3. Connecting columns 5 are fixedly installed at the four corners of the bottom surface of the upper stamping die 1. The connecting columns 5 are slidably installed inside the installation groove 2. A stamping block 6 is fixedly installed at the center position of the bottom surface of the upper stamping die 1. Limit slide bars 8 are fixedly installed on both sides of the bottom surface of the upper stamping die 1. One end of the limit slide bar 8 is slidably installed inside the slide hole 10. A sleeve spring 7 is sleeved on the outside of the limit slide bar 8. The bottom end of the sleeve spring 7 is in close contact with the top surface of the lower stamping die 3; An internal cleaning mechanism 13 is arranged in the cavity of the stamping lower die 3. The internal cleaning mechanism 13 is used to clean the metal particle impurities adhered to the surface of the stamping material. A material centering and positioning component 12 is movably installed on the inner wall of the bottom surface of the stamping lower die 3. The material centering and positioning component 12 is used for the centering force of the stamping material. An adsorption and recovery component 14 is arranged on the inner wall of the bottom surface of the stamping lower die 3. The adsorption and recovery component 14 is used for the stable recovery of the metal impurities cleaned from the stamping material.

[0031] The internal cleaning mechanism 13 includes a first air cylinder 132 and a second air cylinder 134. The second air cylinder 134 is fixedly installed below the first air cylinder 132 through a connecting air duct. The first air cylinder 132 and the second air cylinder 134 have the same specifications. An air flow converging component 133 is fixedly installed on the bottom surface of the second air cylinder 134 through an air duct.

[0032] The air flow converging component 133 includes an air flow converging cover 1334. A side cover 1332 is fixedly installed on the outer wall of one side of the air flow converging cover 1334. An air outlet pipe 1331 is fixedly installed on the outer wall of one side of the side cover 1332. An air flow accelerating spiral disk 1333 is fixedly installed inside the air flow converging cover 1334. An air inlet is arranged at the top of the air flow accelerating spiral disk 1333, and an air outlet is arranged at the bottom of the air flow accelerating spiral disk 1333. A plurality of exhaust holes 11 are arranged on the inner surface of the stamping lower die 3. The exhaust holes 11 are located on one side of the air outlet pipe 1331.

[0033] A flow disturbing component 131 is rotatably installed inside the first air cylinder 132 and the second air cylinder 134. The flow disturbing component 131 includes a mounting shaft 1313. The mounting shaft 1313 is rotatably installed inside the first air cylinder 132. A flow disturbing blade 1312 is fixedly installed on the outer part of the mounting shaft 1313. The flow disturbing blade 1312 is located inside the first air cylinder 132. Side gears 1311 are fixedly installed at both ends of the mounting shaft 1313. Both side gears 1311 are located outside the first air cylinder 132. A plurality of first meshing teeth 9 are fixedly installed on the outer surface of the connecting column 5. The side gears 1311 and the first meshing teeth 9 are meshed with each other.

[0034] The specific implementation method is as follows: When performing stamping forming operations, open the mold cover 4, place the material to be stamped inside the lower stamping die 3. At this time, apply pressure to the upper stamping die 1, and the upper stamping die 1 moves downward, and the connecting column 5 moves downward synchronously. At this time, the first meshing teeth 9 on its outer part can mesh with the side gear 1311, and the side gear 1311 drives the mounting shaft 1313 and the spoiler blade 1312 to rotate. The spoiler blade 1312 generates air flow inside the first air duct 132, and the air flow can be conducted through the first air duct 132 and the second air duct 134 to the air flow converging assembly 133. At this time, the air flow can enter the narrow air flow speed-up volute 1333 to flow. As the air flow entering the air flow speed-up volute 1333 increases, its flow rate can be increased. Finally, the increased-speed air flow can be discharged through the air outlet pipe 1331 and finally discharged through the exhaust hole 11. At this time, the high-speed air flow can blow towards the stamped material, blowing off some residual metal particle impurities on it, realizing the synchronous cleaning of the stamped material.

[0035] Through this design, it is possible to stably clean the stamped material during the stamping process, remove the metal particles remaining on the surface of the stamped material, effectively avoid a large number of pits on the surface of the material after stamping, ensure the quality of the stamped product. At the same time, the mold is also equipped with a gas speed-up structure, which can perform a certain speed-up treatment on the generated air flow to ensure the cleaning effect on the material.

[0036] The material centering and positioning assembly 12 includes a moving plate 122 and a bidirectional threaded shaft 124. The moving plate 122 is slidably installed on the bottom surface of the installation groove 2. Both ends of the moving plate 122 are fixedly installed with side sliders 125. The side sliders 125 are slidably connected to the side chutes provided on the side wall of the lower stamping die 3. A plurality of buffer springs 123 are fixedly installed on one outer wall of the moving plate 122. One end of the plurality of buffer springs 123 is fixedly installed with a positioning plate 121. The bidirectional threaded shaft 124 is rotatably installed on the inner wall of the side shell cavity of the lower stamping die 3. A central gear 126 is fixedly installed at the middle position of the bidirectional threaded shaft 124. The bidirectional threaded shaft 124 is threadedly connected to the threaded holes provided inside the side sliders 125. The central gear 126 is meshed and matched with a plurality of second meshing teeth 15 provided on the outer surface of the limit slide rod 8.

[0037] The specific implementation method is as follows: When stamping the material, as the upper stamping die 1 is pressed downward, the limit slide bar 8 will also descend synchronously. At this time, the second meshing teeth 15 on its outer surface can mesh with the central gear 126, thereby driving the bidirectional threaded shaft 124 to rotate. When the bidirectional threaded shaft 124 rotates, the two side sliders 125 on its outside approach each other, driving the two moving plates 122 to approach the positioning plate 121 until the two positioning plates 121 contact the surface of the material, realizing the centering positioning of the material. When the stamping block 6 presses the material, it can ensure that the center of the material is stressed and prevent the material from undergoing unnecessary displacement, ensuring the stress effect of the material. At the same time, since a buffer spring 123 is provided between the positioning plate 121 and the moving plate 122, the positioning plate 121 and the moving plate 122 have a certain displacement margin. When the stamped material is pressed into shape, the positioning plate 121 will not affect its forming process, further ensuring the finished product quality of the material.

[0038] The adsorption and recovery assembly 14 includes an air cylinder 143 and a telescopic air rod 145. Both the air cylinder 143 and the telescopic air rod 145 are fixedly installed in the bottom cavity of the lower stamping die 3. A control switch 142 is provided on the upper surface of the air cylinder 143. The top of the telescopic air rod 145 is provided with an electronically controlled magnetic adsorption plate 141. The upper surface of the electronically controlled magnetic adsorption plate 141 is inclined. The telescopic air rod 145 is connected to the air cylinder 143 through a guide air pipe 144. A piston is provided at the upper end of the air cylinder 143, and the piston is located directly below the limit slide bar 8. A particle recovery hole is provided on the inner wall of the bottom surface of the lower stamping die 3.

[0039] The specific implementation method is as follows: When the upper stamping die 1 moves downward, the limit slide bar 8 can press the top piston of the air cylinder 143. At this time, the air cylinder 143 inflates the telescopic air rod 145 through the guide air pipe 144. After the telescopic air rod 145 is inflated, its top drives the electronically controlled magnetic adsorption plate 141 to rise. At this time, the electronically controlled magnetic adsorption plate 141 fits at the particle recovery hole on the bottom surface of the lower stamping die 3. At the same time, the descending piston can squeeze the control switch 142 to control the electronically controlled magnetic adsorption plate 141 to be powered on. At this time, the metal particle impurities cleaned by the built-in cleaning mechanism 13 will be quickly adsorbed on the electronically controlled magnetic adsorption plate 141 through the particle recovery hole, realizing the recovery of the cleaned metal particles.

[0040] Through this design, during the stamping process, while cleaning the stamping material, the synchronous recovery of the cleaning substances can be realized, preventing the cleaning substances from remaining in the die and affecting subsequent stamping. At the same time, after the work is completed, the electronically controlled magnetic adsorption plate 141 can be controlled to be powered off, and the metal particles adsorbed on it can automatically slide off, further improving the overall use effect of the die.

[0041] Working principle: When performing stamping operations, open the mold cover 4, place the material to be stamped inside the lower stamping mold 3, and then apply pressure to the upper stamping mold 1. The upper stamping mold 1 moves downward, and the connecting column 5 moves synchronously. At this time, the first engaging teeth 9 on its outer surface can engage with the side gear 1311, driving the mounting shaft 1313 and the spoiler blade 1312 to rotate. The spoiler blade 1312 generates air flow inside the first air duct 132, and the air flow can be conducted through the first air duct 132 and the second air duct 134 to the air flow converging assembly 133. At this time, the air flow can enter the narrow air flow speed-up volute 1333 and flow. As the air flow entering the air flow speed-up volute 1333 increases, its flow rate can be increased. Finally, the accelerated air flow can be discharged through the air outlet pipe 1331 and ultimately through the exhaust hole 11. At this time, the high-speed air flow can blow towards the stamped material, blowing off some residual metal particle impurities on it, realizing the synchronous cleaning of the stamped material; When stamping the material, as the upper stamping mold 1 is pressed and descends, the limit slide bar 8 will also descend synchronously. At this time, the second engaging teeth 15 on its outer surface can engage with the central gear 126, thereby driving the bidirectional threaded shaft 124 to rotate. When the bidirectional threaded shaft 124 rotates, the two side sliders 125 on its outer surface approach each other, driving the two moving plates 122 and the positioning plates 121 to approach each other until the two positioning plates 121 contact the surface of the material, realizing the centering positioning of the material. When the stamping block 6 applies pressure to the material, it can ensure that the center of the material is pressed and prevent unnecessary displacement of the material, ensuring the pressing effect of the material. At the same time, since a buffer spring 123 is provided between the positioning plate 121 and the moving plate 122, the positioning plate 121 and the moving plate 122 have a certain displacement margin, and the positioning plate 121 will not affect the forming process when the stamped material is pressed into shape; When the upper stamping mold 1 moves downward, the limit slide bar 8 can apply pressure to the top piston of the air cylinder 143. At this time, the air cylinder 143 inflates the telescopic air rod 145 through the air duct 144. After the telescopic air rod 145 is inflated, its top drives the electro-controlled magnetic adsorption plate 141 to rise. At this time, the electro-controlled magnetic adsorption plate 141 fits at the particle recovery hole on the bottom surface of the lower stamping mold 3. At the same time, the descending piston can squeeze the control switch 142 to control the electro-controlled magnetic adsorption plate 141 to be energized. At this time, the metal particle impurities cleaned by the built-in cleaning mechanism 13 will be quickly adsorbed on the electro-controlled magnetic adsorption plate 141 through the particle recovery hole, realizing the recovery of the cleaned metal particles. After the work is completed, the electro-controlled magnetic adsorption plate 141 can be controlled to be de-energized, and the metal particles adsorbed on it can automatically slide off.

[0042] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A stamping die for metal sheet processing, comprising an upper stamping die (1) and a lower stamping die (3), characterized in that: An outer groove is provided on one side of the stamping lower die (3), and a die cover (4) is embedded in the outer groove; a mounting groove (2) and a sliding hole (10) are provided inside the stamping lower die (3); connecting columns (5) are fixedly installed at the four corners of the bottom surface of the stamping upper die (1); the connecting columns (5) are slidably installed inside the mounting groove (2); a stamping block (6) is fixedly installed at the center position of the bottom surface of the stamping upper die (1); limiting slide bars (8) are fixedly installed on both sides of the bottom surface of the stamping upper die (1); one end of the limiting slide bar (8) is slidably installed inside the sliding hole (10); a sleeve spring (7) is sleeved on the outside of the limiting slide bar (8); and the bottom end of the sleeve spring (7) is in close contact with the top surface of the stamping lower die (3); A built-in cleaning mechanism (13) is arranged in the shell cavity of the stamping lower die (3), and the built-in cleaning mechanism (13) is used to clean metal particle impurities adhered to the surface of the stamping material. A material centering positioning component (12) is movably installed on the inner wall of the bottom surface of the stamping lower die (3), and the material centering positioning component (12) is used to center the force of the stamping material. An adsorption recovery component (14) is arranged on the inner wall of the bottom surface of the stamping lower die (3), and the adsorption recovery component (14) is used to stably recover the metal impurities cleaned from the stamping material.

2. A stamping die for metal sheet processing according to claim 1, characterized in that: The built-in cleaning mechanism (13) comprises a first air cylinder (132) and a second air cylinder (134); the second air cylinder (134) is fixedly mounted below the first air cylinder (132) via a connecting air duct; the first air cylinder (132) and the second air cylinder (134) have the same specifications; and an airflow convergence component (133) is fixedly mounted on the bottom surface of the second air cylinder (134) via the air duct.

3. A stamping die for metal sheet processing according to claim 2, characterized in that: The airflow converging component (133) comprises an airflow converging cover (1334), a side cover (1332) is fixedly mounted on one side outer wall of the airflow converging cover (1334), an air outlet pipe (1331) is fixedly mounted on one side outer wall of the side cover (1332), and an airflow speed-up volute (1333) is fixedly mounted inside the airflow converging cover (1334).

4. A stamping die for metal sheet processing according to claim 3, characterized in that: An air inlet is arranged at the top of the airflow speed-up volute (1333), an air outlet is arranged at the bottom of the airflow speed-up volute (1333), and a plurality of exhaust holes (11) are arranged on the inner surface of the lower stamping die (3), wherein the exhaust holes (11) are located on one side of the air outlet pipe (1331).

5. A stamping die for metal sheet processing according to claim 4, characterized in that: A spoiler assembly (131) is rotatably mounted inside the first wind tube (132) and the second wind tube (134); the spoiler assembly (131) comprises a mounting shaft (1313); the mounting shaft (1313) is rotatably mounted inside the first wind tube (132); a spoiler blade (1312) is fixedly mounted outside the mounting shaft (1313); the spoiler blade (1312) is located inside the first wind tube (132).

6. A stamping die for metal sheet processing according to claim 5, characterized in that: Side gears (1311) are fixedly mounted on both ends of the mounting shaft (1313), and the two side gears (1311) are both located outside the first air cylinder (132). A plurality of first meshing teeth (9) are fixedly mounted on the outer surface of the connecting column (5), and the side gears (1311) and the first meshing teeth (9) are meshedly connected with each other.

7. A stamping die for metal sheet processing according to claim 6, characterized in that: The material centering positioning component (12) comprises a movable plate (122) and a bidirectional threaded shaft (124); the movable plate (122) is slidably mounted on the bottom surface of the mounting groove (2); side sliders (125) are fixedly mounted on both ends of the movable plate (122); the side sliders (125) are slidably connected to side sliding grooves provided on the side walls of the lower stamping die (3); a plurality of buffer springs (123) are fixedly mounted on one side outer wall of the movable plate (122); and a positioning plate (121) is fixedly mounted on one end of the plurality of buffer springs (123).

8. A stamping die for metal sheet processing according to claim 7, characterized in that: The bidirectional threaded shaft (124) is rotatably mounted on the inner wall of the side shell cavity of the stamping lower die (3); a central gear (126) is fixedly mounted at the middle position of the bidirectional threaded shaft (124); the bidirectional threaded shaft (124) is threadedly connected to a threaded hole provided inside the side sliding block (125); the central gear (126) is meshed and matched with a plurality of second meshing teeth (15) provided on the outer surface of the limiting sliding rod (8).

9. A stamping die for metal sheet processing according to claim 8, characterized in that: The adsorption recovery component (14) comprises an air cylinder (143) and a telescopic air rod (145), wherein the air cylinder (143) and the telescopic air rod (145) are both fixedly mounted in the bottom shell cavity of the stamping lower die (3), and a control switch (142) is provided on the upper surface of the air cylinder (143).

10. A stamping die for metal sheet processing according to claim 9, characterized in that: An electrically controlled magnetic adsorption plate (141) is arranged on the top of the telescopic gas rod (145), and the upper surface of the electrically controlled magnetic adsorption plate (141) is inclined. The telescopic gas rod (145) is connected to the gas cylinder (143) via an air guide tube (144). A piston is arranged at the upper end of the gas cylinder (143), and the piston is located directly below the limit slide rod (8). A particle recovery hole is arranged on the inner wall of the bottom surface of the stamping lower mold (3).

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