Metal sheet stamping forming device

Abstract

The invention relates to the technical field of metal sheet stamping, and discloses a metal sheet stamping forming device, comprising a stamping mechanism, wherein the stamping mechanism also comprises a workbench, the top of the workbench is fixedly connected to a lower mold, the top of the workbench is fixedly connected to a stamping machine through a connecting rod, and the stamping machine is started to extend to make the sliding plate descend to extrude the metal sheet and at the same time transversely extrude the sheet, so that the sliding plate is descended to drive the elastic telescopic rod 1 and the upper mold to descend synchronously and approach the metal sheet, and also drive the alignment frame to descend to avoid affecting the extrusion of the metal sheet, when the upper mold contacts the metal sheet, the upper mold will stop moving, and extrude the elastic telescopic rod 1 to allow the elastic telescopic rod 1 to accumulate rebound force, and rely on the upper mold to contact the metal sheet first to avoid the sheet from deflecting, and when the sliding plate descends, it will also drive the elastic telescopic rod 2 and the rack plate to descend, and when the elastic telescopic rod 2 descends, it will synchronously drive the extrusion plate to descend.

Description

Technical Field

[0001] The invention relates to the technical field of metal sheet stamping equipment, in particular to a metal sheet stamping forming device. Background Art

[0002] Metal sheets are usually made of metals such as steel, aluminum, copper, and magnesium. Their thickness can range from a few millimeters to several centimeters, depending on the specific application requirements. During the manufacturing process, metal sheets can be processed into the required shape and size through stamping, bending, welding, cutting and other processes. Due to their high strength, good corrosion resistance, and strong plasticity, metal sheets are widely used in industrial production and have become one of the indispensable important materials in modern manufacturing.

[0003] When the existing stamping device stamps the sheet into a three-dimensional shape, the stamped sheet may be in close contact with the die, resulting in the punching machine lifting the sheet together when rising after the stamping is completed. The sheet may fall during the rising process, causing the sheet to bump and be damaged, affecting the quality of the stamping. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a metal sheet stamping forming device, including a stamping mechanism, the stamping mechanism also includes a workbench, the top of the workbench is fixedly connected to a lower mold, and the top of the workbench is fixedly connected to a stamping machine through a connecting rod;

[0005] The pushing mechanism includes a plurality of pushing blocks slidably connected to the inner wall of the lower mold, a sliding groove 1 is provided inside the workbench, and a fixing frame is fixedly connected to the inner wall of the sliding groove 1;

[0006] The pressure-resistant mechanism comprises a plurality of elastic blocks fixedly connected to the top of the lower mold, a plurality of movable grooves 2 are provided inside the lower mold, and the inner walls of the plurality of movable grooves 2 are slidably connected with bevel elastic rods.

[0007] Preferably, the stamping mechanism also includes a sliding plate fixedly connected to the bottom output end of the stamping machine, an alignment frame is slidably connected to the inner wall of the sliding groove, the side wall of the alignment frame is fixedly connected to the side wall of the sliding plate, an elastic telescopic rod 1 is fixedly connected to the inner wall of the sliding plate, an upper mold is provided on the top of the lower mold, the top of the upper mold is fixedly connected to the bottom of the elastic telescopic rod 1, and the stamping machine is started to extend to make the sliding plate descend, drive the elastic telescopic rod 1 and the upper mold to descend synchronously and approach the metal sheet, which will also drive the alignment frame to descend to avoid affecting the extrusion of the metal sheet, and when the upper mold contacts the metal sheet, the upper mold will stop moving and squeeze the elastic telescopic rod 1 to allow the elastic telescopic rod 1 to accumulate rebound force, relying on the upper mold to contact the metal sheet first to avoid the plate from deflecting.

[0008] Preferably, the stamping mechanism also includes a plurality of fixed plates fixedly connected to the side walls of the upper mold, a plurality of elastic telescopic plates are slidably connected to the inner walls of the plurality of fixed plates, a plurality of elastic telescopic rods 2 are fixedly connected to the side walls of the sliding plates, a plurality of elastic telescopic rods 2 are fixedly connected to the side walls of the extrusion plates, a plurality of rack plates are fixedly connected to the side walls of the sliding plates, a plurality of push rods are fixedly connected to the side walls of the extrusion plates, and when the sliding plate descends, the elastic telescopic rods 2 and the rack plates are also driven to descend, and when the elastic telescopic rods 2 descend, the extrusion plates are synchronously driven to descend.

[0009] Preferably, the stamping mechanism also includes a plurality of rotating racks fixedly connected to the side walls of the workbench, gears are fixedly connected to the outer walls of the plurality of rotating racks, the outer walls of the plurality of gears are meshed and connected to the side walls of the rack plate, a plurality of pushing racks are arranged on the side walls of the workbench, the inner walls of the plurality of pushing racks are fixedly connected to the outer walls of the rotating rack, when the rack plate descends, it will mesh with the gears, causing the gears to rotate, driving the pushing rack to rotate, and when the pushing rack rotates, it pushes the push rod, thereby moving the extrusion plate closer to the metal sheet, and when the sliding plate continues to descend until it contacts the upper mold, the extrusion plate will also contact the metal sheet, and the stamping machine continues to apply force , the fixed plate and the extrusion plate will be lowered at the same time to extrude the metal sheet. While descending, the extrusion plate will also approach the fixed plate to extrude the elastic telescopic plate. The extrusion plate and the fixed plate will be synchronously lowered to extrude the sheet, and when the extrusion plate descends, it will move horizontally close to the lower die to extrude the sheet. When the extrusion is completed, the sliding plate rises, and the rack plate engages with the gear to make the gear rotate in the opposite direction, so that the push frame is separated from the push rod, and the extrusion plate is affected by the rebound force of the elastic telescopic rod 2 to return to its position, making the demoulding speed faster, thereby reducing the contact area between the upper die and the sheet, and avoiding excessive contact area between the upper die and the sheet, resulting in close contact with the sheet after the stamping is completed.

[0010] Preferably, the pushing mechanism also includes an arc-shaped elastic rod slidably connected to the inner wall of the fixed frame, a sliding groove 2 is opened inside the lower mold, and an arc-shaped bevel ring is slidably connected to the inner wall of the sliding groove 2, and a plurality of movable grooves 1 are opened inside the lower mold. By utilizing the force of the alignment frame descending, when the alignment frame descends and moves to contact the arc-shaped elastic rod, it will push the arc-shaped elastic rod to move, so that the end of the arc-shaped elastic rod in contact with the alignment frame becomes shorter, and the other end will extend through the fixed frame and become longer, pushing the arc-shaped bevel ring to rise.

[0011] Preferably, the pushing mechanism also includes an elastic rod slidably connected to the inner wall of the movable groove, and the side walls of several movable grooves are fixedly connected to the side walls of the push block, and the bottoms of several elastic rods are fixedly connected to conical blocks. The arc slope ring will contact the conical block during the rising process. Since the contact surfaces of the arc slope ring and the conical block are both inclined, when the arc slope ring rises, it will squeeze the conical block, allowing the several conical blocks to approach each other, driving the elastic rod to move, allowing the elastic rod to accumulate rebound force, and the movement of the elastic rod will drive the push block to move, so that the push block enters the lower mold to avoid the push block blocking the plate from being extruded and shaped. When the plate is stamped, the sliding plate rises, the alignment frame is separated from the arc elastic rod, the force squeezing the arc slope ring disappears, and the arc slope ring descends due to its own weight. The rebound force of the elastic rod will be released, allowing the push block to contact the stamped plate and collide with the plate. The force of the collision on the plate can reduce the fit between the plate and the lower mold.

[0012] Preferably, the anti-pressure mechanism also includes an anti-pressure block fixedly connected to the outer wall of the angled elastic rod, and a plurality of angled elastic rods are fixedly connected to the outer walls thereof with a pushing roller, and a plurality of elastic blocks are slidably connected to the inner walls thereof with an inclined panel. By utilizing the force of the movement of the pushing block, when the pushing block moves to the inside of the lower mold and contacts the angled elastic rod, since the contact surface between the angled elastic rod and the pushing block is an inclined surface, the pushing block will push the angled elastic rod to move, allowing the angled elastic rod to accumulate rebound force. The moving direction of the angled elastic rod is as shown in the upper left figure, driving the anti-pressure block to move, allowing the anti-pressure block to press against the top and left side of the inner wall of the elastic block. When the angled elastic rod moves, it will also drive the pushing roller to move, squeezing the inclined panel so that the inclined panel presses against the front of the inner wall of the elastic block.

[0013] Preferably, the pressure-resistant mechanism also includes a plurality of oil storage tanks provided inside the lower mold, the inner walls of the plurality of oil storage tanks are slidably connected with pistons, the side walls of the plurality of pistons are fixedly connected with return springs, and the top of the lower mold is provided with a plurality of oil spray holes. By utilizing the force of the movement of the angled elastic rod, when the angled elastic rod moves and contacts the piston, since the contact surface between the piston and the angled elastic rod is an inclined surface, the angled elastic rod will smoothly push the piston to move, allowing the return spring to be stretched and accumulating rebound force. When the piston moves, the lubricating oil in the oil storage tank will be squeezed, and the squeezed lubricating oil will be splashed onto the contact surface of the plate and the lower mold through the oil spray holes. By spraying the lubricating oil, the friction between the plate and the lower mold is reduced, thereby reducing heat generation. By placing the plate and the lower mold together and spraying the lubricating oil, since the plate and the lower mold are in contact, when the lubricating oil is sprayed out, it will be dispersed between the lower mold and the plate, so that the amount of lubricating oil in the sprayed area of ​​the lower mold and the plate is basically the same, ensuring that the lubrication effect in the entire contact area is uniform and consistent.

[0014] The present invention has the following beneficial effects:

[0015] (1) The present invention utilizes the characteristics that the extrusion plate can extrude the metal sheet while being able to extrude the sheet laterally when it descends. The punching machine is started to extend, causing the sliding plate to descend, driving the elastic telescopic rod 1 and the upper mold to descend synchronously and approach the metal sheet. It also drives the alignment frame to descend to avoid affecting the extrusion of the metal sheet. When the upper mold contacts the metal sheet, the upper mold stops moving and squeezes the elastic telescopic rod 1 to allow the elastic telescopic rod 1 to accumulate rebound force. The upper mold contacts the metal sheet first to avoid the sheet from being offset. When the sliding plate descends, it also drives the elastic telescopic rod 2 and the rack plate to descend. When the elastic telescopic rod 2 descends, it drives the extrusion plate to descend synchronously. When the rack plate descends, it meshes with the gear, causing the gear to rotate, driving the push frame to rotate. When the push frame rotates, it pushes the push rod, thereby allowing the extrusion plate to move closer to the metal sheet. When the sliding plate continues to descend until it contacts the upper mold, After that, the extrusion plate will also contact the metal sheet. The punching machine continues to apply force, which will make the fixed plate and the extrusion plate descend at the same time to extrude the metal sheet. While descending, the extrusion plate will also approach the fixed plate to extrude the elastic telescopic plate. The extrusion plate and the fixed plate will be synchronously lowered to extrude the sheet, and when the extrusion plate descends, it will move horizontally close to the lower die to extrude the sheet. When the extrusion is completed, when the sliding plate rises, the rack plate engages with the gear to make the gear rotate in the opposite direction, so that the push frame and the push rod are separated, and the extrusion plate is affected by the rebound force of the elastic telescopic rod 2 to return to its position, making the demoulding speed faster, thereby reducing the contact area between the upper die and the sheet, avoiding excessive contact area between the upper die and the sheet, resulting in close contact with the sheet after stamping is completed, and the sheet may be driven up, resulting in difficulty in separating the sheet and the upper die and the sheet falling, avoiding the sheet from falling and causing collision and affecting the quality of the sheet.

[0016] (2) The present invention utilizes the force of the alignment frame descending. When the alignment frame descends and moves to contact the arc-shaped elastic rod, it will push the arc-shaped elastic rod to move, so that the end of the arc-shaped elastic rod that contacts the alignment frame becomes shorter, while the other end will extend through the fixed frame and become longer, pushing the arc-shaped bevel ring to rise. During the rising process, the arc-shaped bevel ring will contact the conical block. Since the contact surfaces of the arc-shaped bevel ring and the conical block are both inclined, when the arc-shaped bevel ring rises, it will squeeze the conical block, allowing several conical blocks to approach each other, driving the elastic rod to move, allowing the elastic rod to accumulate rebound force, and the movement of the elastic rod will drive the push block to move, so that the push block enters the lower mold, thereby preventing the push block from blocking the plate from being squeezed. Shaping, when the sheet is stamped, the sliding plate rises, the alignment frame separates from the arc elastic rod, the force squeezing the arc bevel ring disappears, the arc bevel ring drops under the influence of its own weight, and the resilience of the elastic rod is released, allowing the push block to contact the stamped sheet and collide with the sheet. The force of the collision can reduce the fit between the sheet and the lower mold, so that the lower mold and the sheet will not fit too tightly, making it easy to take out the sheet, avoiding too tight fit between the sheet and the lower mold, which makes it difficult to take out the sheet, and requires workers to use tools to assist in taking out the sheet, which affects the processing efficiency. The sheet may also be scratched by the tools, affecting the smoothness of the metal surface.

[0017] (3) The present invention utilizes the force of the push block to move. When the push block moves to the inside of the lower mold and contacts the angled elastic rod, since the contact surface between the angled elastic rod and the push block is an inclined surface, the push block will push the angled elastic rod to move, allowing the angled elastic rod to accumulate rebound force. The moving direction of the angled elastic rod is shown in the upper left of the figure, driving the anti-pressure block to move, allowing the anti-pressure block to press against the top and left side of the inner wall of the elastic block. When the angled elastic rod moves, it will also drive the push roller to move, squeezing the inclined panel, allowing the inclined panel to press against the front of the inner wall of the elastic block. Since the elastic block is elastic, when the sheet is punched, relying on the elasticity of the elastic block, the pressing force on the sheet can be evenly dispersed, making the folding edge of the sheet smoother, and the contact surface between the elastic block and the sheet is pressed inside the elastic block to resist the extrusion force from the outside, avoiding uneven extrusion force on the elastic block, deformation, and possible dents at the folding edge.

[0018] (4) The present invention utilizes the force of the angled elastic rod moving. When the angled elastic rod moves and contacts the piston, since the contact surface between the piston and the angled elastic rod is an inclined surface, the angled elastic rod will smoothly push the piston to move, allowing the return spring to be stretched and accumulating rebound force. When the piston moves, it will squeeze the lubricating oil in the oil storage tank. The squeezed lubricating oil will splash onto the contact surface between the plate and the lower mold through the oil spray hole. By spraying the lubricating oil, the friction between the plate and the lower mold is reduced, thereby reducing heat generation. By placing the plate and the lower mold together and spraying the lubricating oil, since the plate and the lower mold are in contact, when the lubricating oil is sprayed out, it will disperse between the lower mold and the plate, so that the amount of lubricating oil in the sprayed area of ​​the lower mold and the plate is basically the same, ensuring that the lubrication effect is uniform and consistent in the entire contact area. This helps to maintain stable friction conditions during the stamping process and avoid uneven friction and stamping quality problems caused by insufficient or excessive local lubrication. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 A is an enlarged schematic diagram;

[0022] Figure 3 It is an exploded schematic diagram of some components of the punching mechanism of the present invention;

[0023] Figure 4 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 5 It is a right side sectional schematic diagram of the workbench of the present invention;

[0025] Figure 6 For the present invention Figure 5 A magnified schematic diagram of B;

[0026] Figure 7 It is a top view cross-sectional schematic diagram of the lower mold of the present invention;

[0027] Figure 8 For the present invention Figure 7 A magnified schematic diagram of middle C;

[0028] Fig. 9 It is a schematic diagram of the explosion of some components of the pressure-resistant mechanism of the present invention.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] In the figure: 1, stamping mechanism; 101, workbench; 102, lower die; 103, stamping machine; 104, sliding plate; 105, alignment frame; 106, elastic telescopic rod 1; 107, upper die; 108, fixed plate; 109, elastic telescopic plate; 110, elastic telescopic rod 2; 111, extrusion plate; 112, rack plate; 113, rotating frame; 114, gear; 115, pushing frame; 2, pushing mechanism; 201, pushing block; 202, sliding plate Moving groove one; 203, fixed frame; 204, arc-shaped elastic rod; 205, arc-shaped bevel ring; 206, sliding groove two; 207, moving groove one; 208, elastic rod; 209, conical block; 3, anti-pressure mechanism; 301, elastic block; 302, moving groove two; 303, bevel elastic rod; 304, anti-pressure block; 305, inclined panel; 306, pushing roller; 307, oil storage tank; 308, piston; 309, return spring; 310, oil injection hole. DETAILED DESCRIPTION

[0031] 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.

[0032] For example, see Figure 1 - Figure 3 The present invention is a metal sheet stamping forming device, comprising a stamping mechanism 1, the stamping mechanism 1 also comprises a workbench 101, a lower die 102 is fixedly connected to the top of the workbench 101, and a punching machine 103 is fixedly connected to the top of the workbench 101 through a connecting rod;

[0033] The pushing mechanism 2 includes a plurality of pushing blocks 201 slidably connected to the inner wall of the lower mold 102. A sliding groove 202 is provided inside the workbench 101. A fixing frame 203 is fixedly connected to the inner wall of the sliding groove 202.

[0034] The pressure-resistant mechanism 3 includes a plurality of elastic blocks 301 fixedly connected to the top of the lower mold 102. A plurality of movable grooves 302 are provided inside the lower mold 102. The inner walls of the plurality of movable grooves 302 are slidably connected with angled elastic rods 303.

[0035] The stamping mechanism 1 also includes a sliding plate 104 fixedly connected to the output end at the bottom of the stamping machine 103, an alignment frame 105 is slidably connected to the inner wall of the sliding groove 202, the side wall of the alignment frame 105 is fixedly connected to the side wall of the sliding plate 104, an elastic telescopic rod 106 is fixedly connected to the inner wall of the sliding plate 104, an upper mold 107 is arranged on the top of the lower mold 102, the top of the upper mold 107 is fixedly connected to the bottom of the elastic telescopic rod 106, the stamping machine 103 is started to extend, the sliding plate 104 is lowered, the elastic telescopic rod 106 and the upper mold 107 are driven to descend synchronously, close to the metal sheet, and the alignment frame 105 is also driven to descend to avoid affecting the extrusion of the metal sheet, when the upper mold 107 contacts the metal sheet, the upper mold 107 stops moving, squeezes the elastic telescopic rod 106, and allows the elastic telescopic rod 106 to accumulate resilience, relying on the upper mold 107 to contact the metal sheet first to avoid the plate from deflecting.

[0036] The stamping mechanism 1 also includes a plurality of fixed plates 108 fixedly connected to the side walls of the upper mold 107, a plurality of elastic telescopic plates 109 are slidably connected to the inner walls of the plurality of fixed plates 108, a plurality of elastic telescopic rods 110 are fixedly connected to the side walls of the sliding plate 104, a plurality of elastic telescopic rods 110 are fixedly connected to the side walls of the plurality of extrusion plates 111, a plurality of rack plates 112 are fixedly connected to the side walls of the sliding plate 104, a plurality of push rods are fixedly connected to the side walls of the plurality of extrusion plates 111, and when the sliding plate 104 descends, the elastic telescopic rods 110 and the rack plates 112 are also driven to descend, and when the elastic telescopic rods 110 descend, the extrusion plates 111 are driven to descend synchronously.

[0037] The stamping mechanism 1 also includes a plurality of rotating frames 113 fixedly connected to the side walls of the workbench 101, and the outer walls of the plurality of rotating frames 113 are fixedly connected with gears 114, and the outer walls of the plurality of gears 114 are meshed and connected with the side walls of the rack plate 112. A plurality of pushing frames 115 are arranged on the side walls of the workbench 101, and the inner walls of the plurality of pushing frames 115 are fixedly connected with the outer walls of the rotating frames 113. When the rack plate 112 descends, it will mesh with the gear 114, so that the gear 114 rotates, driving the pushing frame 115 to rotate, and when the pushing frame 115 rotates, it pushes the push rod, so that the extrusion plate 111 moves closer to the metal sheet. When the sliding plate 104 continues to descend until it contacts the upper mold 107, the extrusion plate 111 will also contact the metal sheet, and the stamping machine 103 continues to apply When the force is applied, the fixed plate 108 and the extrusion plate 111 will descend at the same time to extrude the metal sheet. While descending, the extrusion plate 111 will also approach the fixed plate 108 to extrude the elastic telescopic plate 109. The extrusion plate 111 and the fixed plate 108 will descend synchronously to extrude the sheet. When the extrusion plate 111 descends, it will move laterally close to the lower mold 102 to extrude the sheet. When the extrusion is completed, when the sliding plate 104 rises, the rack plate 112 engages with the gear 114 to allow the gear 114 to rotate in the opposite direction, allowing the pushing frame 115 to separate from the push rod. The extrusion plate 111 is affected by the rebound force of the elastic telescopic rod 110 to return to its original position, making the demoulding speed faster, thereby reducing the contact area between the upper mold 107 and the sheet, and avoiding excessive contact area between the upper mold 107 and the sheet, resulting in close contact with the sheet after the stamping is completed.

[0038] For example 2, please refer to Figure 4 - Fig. 9 The present invention is a metal sheet stamping forming device. On the basis of Example 1, the pushing mechanism 2 also includes an arc-shaped elastic rod 204 slidably connected to the inner wall of the fixed frame 203, a sliding groove 206 is provided inside the lower mold 102, and an arc-shaped bevel ring 205 is slidably connected to the inner wall of the sliding groove 206. A plurality of moving grooves 207 are provided inside the lower mold 102. By utilizing the downward force of the alignment frame 105, when the alignment frame 105 moves downward and contacts the arc-shaped elastic rod 204, the arc-shaped elastic rod 204 is pushed to move, so that the end of the arc-shaped elastic rod 204 that contacts the alignment frame 105 becomes shorter, and the other end extends through the fixed frame 203 and becomes longer, pushing the arc-shaped bevel ring 205 to rise.

[0039] The pushing mechanism 2 also includes an elastic rod 208 slidably connected to the inner wall of the moving groove 207, and the side walls of several moving grooves 207 are fixedly connected to the side walls of the pushing block 201. The bottoms of several elastic rods 208 are fixedly connected to conical blocks 209. The arc-shaped bevel ring 205 will contact the conical block 209 during the rising process. Since the contact surfaces of the arc-shaped bevel ring 205 and the conical block 209 are both inclined, when the arc-shaped bevel ring 205 rises, it will squeeze the conical block 209, so that several conical blocks 209 are close to each other, driving the elastic rod 208 to move, so that the elastic rod 208 accumulates The movement of the elastic rod 208 will store the rebound force, which will drive the push block 201 to move, so that the push block 201 enters the lower mold 102, and prevents the push block 201 from blocking the sheet from being squeezed and shaped. When the sheet is stamped, the sliding plate 104 rises, and the alignment frame 105 separates from the arc-shaped elastic rod 204, and the force for squeezing the arc-shaped bevel ring 205 disappears. The arc-shaped bevel ring 205 falls due to its own weight, and the rebound force of the elastic rod 208 will be released, allowing the push block 201 to contact the stamped sheet and collide with the sheet. The collision force on the sheet can reduce the fit between the sheet and the lower mold 102.

[0040] The anti-pressure mechanism 3 also includes an anti-pressure block 304 fixedly connected to the outer wall of the bevel elastic rod 303, and the outer walls of several bevel elastic rods 303 are fixedly connected with a push roller 306, and the inner walls of several elastic blocks 301 are slidably connected with an inclined plate 305. By using the force of the push block 201 moving, when the push block 201 moves to the inside of the lower mold 102 and contacts the bevel elastic rod 303, since the contact surface between the bevel elastic rod 303 and the push block 201 is set as an inclined surface, the push block 201 will push the bevel elastic rod 303 to move, so that the bevel elastic rod 303 accumulates resilience, and the moving direction of the bevel elastic rod 303 is as follows: Fig. 9 At the upper left corner, the anti-compression block 304 is driven to move, so that the anti-compression block 304 presses against the top and left side of the inner wall of the elastic block 301. When the angled elastic rod 303 moves, it also drives the push roller 306 to move, squeezing the inclined panel 305, so that the inclined panel 305 presses against the front of the inner wall of the elastic block 301.

[0041] The pressure-resistant mechanism 3 also includes a plurality of oil storage tanks 307 provided inside the lower mold 102, the inner walls of the plurality of oil storage tanks 307 are slidably connected with pistons 308, the side walls of the plurality of pistons 308 are fixedly connected with return springs 309, and the top of the lower mold 102 is provided with a plurality of oil injection holes 310. By utilizing the force of the angled elastic rod 303 moving, when the angled elastic rod 303 moves and contacts the piston 308, since the contact surface between the piston 308 and the angled elastic rod 303 is an inclined surface, the angled elastic rod 303 will smoothly push the piston 308 to move, so that the return spring 309 is stretched, and the return oil is accumulated. When the piston 308 moves, it squeezes the lubricating oil in the oil storage tank 307, and the squeezed lubricating oil will splash onto the contact surface between the plate and the lower mold 102 through the oil spray hole 310. By spraying the lubricating oil, the friction between the plate and the lower mold 102 is reduced, thereby reducing heat generation. By placing the plate and the lower mold 102 together and spraying the lubricating oil, due to the contact between the plate and the lower mold 102, when the lubricating oil is sprayed out, it will disperse between the lower mold 102 and the plate, so that the amount of lubricating oil in the sprayed area of ​​the lower mold 102 and the plate is basically the same, ensuring that the lubrication effect in the entire contact area is uniform and consistent.

[0042] A specific application of this embodiment is as follows: when the present invention is used, the metal sheet to be punched is placed on the lower die 102, and the sheet is aligned with the corner of the alignment frame 105 to ensure that the metal sheet is placed in the correct position. The extrusion plate 111 is used to extrude the metal sheet while being able to extrude the sheet laterally. The punching machine 103 is started to extend, so that the sliding plate 104 is lowered, and the elastic telescopic rod 106 and the upper die 107 are driven to synchronously descend and approach the metal sheet, which will also drive the alignment frame 105 to descend to avoid affecting the extrusion of the metal sheet. When the upper die 10 After contacting the metal sheet, the upper mold 107 stops moving and squeezes the elastic telescopic rod 106 to allow the elastic telescopic rod 106 to accumulate resilience. The upper mold 107 first contacts the metal sheet to prevent the sheet from deflecting. When the sliding plate 104 descends, it also drives the elastic telescopic rod 110 and the rack plate 112 to descend. When the elastic telescopic rod 110 descends, it drives the squeezing plate 111 to descend synchronously. When the rack plate 112 descends, it meshes with the gear 114, allowing the gear 114 to rotate, driving the push frame 115 to rotate, and pushing the push rod when the push frame 115 rotates. Thereby, the extrusion plate 111 moves closer to the metal sheet. When the sliding plate 104 continues to descend until it contacts the upper die 107, the extrusion plate 111 will also contact the metal sheet. The punching machine 103 continues to apply force, which will cause the fixed plate 108 and the extrusion plate 111 to descend at the same time to extrude the metal sheet. While descending, the extrusion plate 111 will also approach the fixed plate 108 to extrude the elastic expansion plate 109. The extrusion plate 111 and the fixed plate 108 descend synchronously to extrude the sheet. When the extrusion plate 111 descends, it moves horizontally close to the lower die 102 to extrude the sheet. After the extrusion is completed, when the sliding plate 104 rises, the rack plate 112 meshes with the gear 114 to make the gear 114 rotate in the opposite direction, so that the pushing frame 115 is separated from the push rod, and the extrusion plate 111 is affected by the rebound force of the elastic telescopic rod 110 to return to its original position, so that the demoulding speed is faster, thereby reducing the contact area between the upper mold 107 and the plate, avoiding that the contact area between the upper mold 107 and the plate is too large, resulting in close contact with the plate after the stamping is completed, and the plate may be driven to rise, resulting in the problem of difficulty in separating the plate and the upper mold 107 and the plate falling, so as to avoid the plate bumping due to falling and affecting the quality of the plate;

[0043] By utilizing the force of the alignment frame 105 descending, when the alignment frame 105 descends and moves to contact the arc-shaped elastic rod 204, the arc-shaped elastic rod 204 will be pushed to move, so that the end of the arc-shaped elastic rod 204 that contacts the alignment frame 105 becomes shorter, and the other end will extend through the fixing frame 203 to become longer, pushing the arc-shaped bevel ring 205 to rise. The arc-shaped bevel ring 205 will contact the conical block 209 during the rising process. Since the contact surfaces of the arc-shaped bevel ring 205 and the conical block 209 are both inclined, when the arc-shaped bevel ring 205 rises, it will squeeze the conical block 209, so that several conical blocks 209 are close to each other, driving the elastic rod 208 to move, allowing the elastic rod 208 to accumulate resilience, and the movement of the elastic rod 208 will drive the push block 201 to move, so that the push block 201 enters the lower mold 102. The push block 201 is prevented from blocking the sheet from being squeezed and shaped. When the sheet is stamped, the sliding plate 104 rises, the alignment frame 105 is separated from the arc elastic rod 204, and the force for squeezing the arc bevel ring 205 disappears. The arc bevel ring 205 falls under the influence of its own weight, and the resilience of the elastic rod 208 is released, so that the push block 201 contacts the stamped sheet and collides with the sheet. The collision force on the sheet can reduce the fit between the sheet and the lower die 102, so that the lower die 102 and the sheet are not too tightly fitted, which is convenient for taking out the sheet, and avoids the sheet and the lower die 102 from being too tightly fitted, which makes it difficult to take out the sheet, and requires workers to use tools to assist in taking out the sheet, which affects the processing efficiency. The sheet may also be scratched by the tool, affecting the smoothness of the metal surface.

[0044] By utilizing the force of the push block 201 moving, when the push block 201 moves to the inside of the lower mold 102 and contacts the bevel elastic rod 303, since the contact surface between the bevel elastic rod 303 and the push block 201 is set as an inclined surface, the push block 201 will push the bevel elastic rod 303 to move, so that the bevel elastic rod 303 accumulates a rebound force, and the moving direction of the bevel elastic rod 303 is as follows: Fig. 9The upper left corner of the plate 304 is driven to move, so that the anti-compression block 304 is pressed against the top and left side of the inner wall of the elastic block 301. When the bevel elastic rod 303 moves, it also drives the push roller 306 to move, squeezing the inclined plate 305, so that the inclined plate 305 is pressed against the front of the inner wall of the elastic block 301. Since the elastic block 301 is elastic, when the plate is punched, relying on the elasticity of the elastic block 301, the pressing force on the plate can be evenly dispersed, so that the folding edge of the plate is smoother, and the contact surface between the elastic block 301 and the plate is pressed inside the elastic block 301 to resist the extrusion force received from the outside, so as to avoid uneven extrusion force received by the elastic block 301, deformation, which may cause dents at the folding edge, and utilize the force of the movement of the bevel elastic rod 303. When the bevel elastic rod 303 moves and contacts the piston 308, since the contact surface between the piston 308 and the bevel elastic rod 303 is an inclined surface, Therefore, the angled elastic rod 303 will smoothly push the piston 308 to move, allowing the return spring 309 to be stretched and accumulate resilience. When the piston 308 moves, it will squeeze the lubricating oil in the oil storage tank 307, and the squeezed lubricating oil will splash onto the contact surface between the plate and the lower mold 102 through the oil spray hole 310. By spraying the lubricating oil, the friction between the plate and the lower mold 102 is reduced, thereby reducing heat generation. By placing the plate and the lower mold 102 together and spraying the lubricating oil, due to the contact between the plate and the lower mold 102, when the lubricating oil is sprayed out, it will disperse between the lower mold 102 and the plate, so that the amount of lubricating oil in the sprayed area of ​​the lower mold 102 and the plate is basically the same, ensuring that the lubrication effect in the entire contact area is uniform and consistent, which helps to maintain stable friction conditions during the stamping process and avoid uneven friction and stamping quality problems caused by insufficient or excessive local lubrication.

[0045] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details when the present invention is used, nor do they limit the invention to only the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and use the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A metal sheet stamping forming device, comprising a stamping mechanism (1), the stamping mechanism (1) further comprising a workbench (101), the top of the workbench (101) being fixedly connected to a lower die (102), the top of the workbench (101) being fixedly connected to a punch (103) via a connecting rod, characterized in that: Also includes: A pushing mechanism (2), the pushing mechanism (2) comprising a plurality of pushing blocks (201) slidably connected to the inner wall of the lower mold (102), a sliding groove (202) being provided inside the workbench (101), and a fixing frame (203) being fixedly connected to the inner wall of the sliding groove (202); A pressure-resistant mechanism (3), the pressure-resistant mechanism (3) comprising a plurality of elastic blocks (301) fixedly connected to the top of the lower mold (102), a plurality of movable grooves (302) being provided inside the lower mold (102), and an oblique elastic rod (303) being slidably connected to the inner walls of the plurality of movable grooves (302); The punching mechanism (1) further comprises a sliding plate (104) fixedly connected to the bottom output end of the punching machine (103); an alignment frame (105) is slidably connected to the inner wall of the sliding groove (202); the side wall of the alignment frame (105) is fixedly connected to the side wall of the sliding plate (104); an elastic telescopic rod (106) is fixedly connected to the inner wall of the sliding plate (104); an upper mold (107) is arranged on the top of the lower mold (102); the top of the upper mold (107) is fixedly connected to the bottom of the elastic telescopic rod (106); The punching mechanism (1) further comprises a plurality of fixed plates (108) fixedly connected to the side wall of the upper mold (107), the inner walls of the plurality of fixed plates (108) being slidably connected to a plurality of elastic telescopic plates (109), the side walls of the sliding plate (104) being fixedly connected to a plurality of elastic telescopic rods (110), the side walls of the plurality of elastic telescopic rods (110) being fixedly connected to an extrusion plate (111), the side walls of the sliding plate (104) being fixedly connected to a plurality of rack plates (112), and the side walls of the plurality of extrusion plates (111) being fixedly connected to a plurality of push rods; The punching mechanism (1) further comprises a plurality of rotating frames (113) fixedly connected to the side wall of the workbench (101), the outer walls of the plurality of rotating frames (113) being fixedly connected to gears (114), the outer walls of the plurality of gears (114) being meshingly connected to the side wall of the rack plate (112), and a plurality of pushing frames (115) being arranged on the side wall of the workbench (101), the inner walls of the plurality of pushing frames (115) being fixedly connected to the outer wall of the rotating frame (113); The pushing mechanism (2) further comprises an arc-shaped elastic rod (204) slidably connected to the inner wall of the fixing frame (203); a second sliding groove (206) is provided inside the lower mold (102); an arc-shaped bevel ring (205) is slidably connected to the inner wall of the second sliding groove (206); and a plurality of first moving grooves (207) are provided inside the lower mold (102); The pushing mechanism (2) further comprises an elastic rod (208) slidably connected to the inner wall of the movable groove (207), the side walls of several movable grooves (207) being fixedly connected to the side walls of the pushing block (201), and the bottoms of several elastic rods (208) being fixedly connected to conical blocks (209); The anti-pressure mechanism (3) further comprises an anti-pressure block (304) fixedly connected to the outer wall of the angled elastic rod (303), a plurality of the outer walls of the angled elastic rods (303) are fixedly connected to a push roller (306), and a plurality of the inner walls of the elastic blocks (301) are slidably connected to an inclined panel (305); The pressure-resistant mechanism (3) further comprises a plurality of oil storage grooves (307) provided inside the lower mold (102), the inner walls of the plurality of oil storage grooves (307) being slidably connected to pistons (308), the side walls of the plurality of pistons (308) being fixedly connected to return springs (309), and the top of the lower mold (102) being provided with a plurality of oil injection holes (310).

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