Die stamping integrated system with die stamping force fine adjustment structure

Abstract

The invention relates to the technical field of stamping machining, and discloses a die stamping integrated system provided with a die stamping force fine adjustment structure, the die stamping integrated system comprises a stamping part, the stamping part comprises a rack, the outer surface of the rack is slidably connected with a sliding block, and the lower surface of the sliding block is fixedly provided with an upper die set; and the positioning part comprises a workbench, the outer surface of the workbench is fixedly connected with the side, close to the sliding block, of the rack, and a lower module is fixedly installed on the upper surface of the workbench through a positioning pin. The die stamping integrated system provided with the die stamping force fine adjustment structure can effectively solve the problems that in the prior art, metal plate raw materials need to be punched during die production and manufacturing, traditional stamping equipment usually needs manual material feeding, an operator needs to manually place the raw materials on a workbench of the stamping equipment, and the working efficiency is high. The manual feeding efficiency is low, errors can be generated, stamping positioning is inaccurate, and the precision and quality of stamped products are affected.

Description

Technical Field

[0001] The invention relates to the technical field of stamping processing, and in particular to a die stamping integrated system equipped with a die stamping force fine-tuning structure. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, stamping and other methods. It is a very important basic process equipment in the manufacturing industry. In modern industrial production, most industrial products need to use molds for molding. It can ensure the consistency and interchangeability of products, greatly improve production efficiency and reduce production costs.

[0003] In the prior art, metal sheet raw materials need to be punched when producing molds. Traditional stamping equipment usually requires manual material loading. The operator needs to manually place the raw materials on the workbench of the stamping equipment. Manual loading is inefficient and will produce errors, resulting in inaccurate stamping positioning, affecting the precision and quality of the stamped products. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a mold stamping integrated system equipped with a mold stamping force fine-tuning structure, which can effectively solve the problem in the prior art that metal sheet raw materials need to be punched when producing molds, and traditional stamping equipment usually requires manual material loading. The operator needs to manually place the raw materials on the workbench of the stamping equipment. Manual loading is inefficient and will produce errors, resulting in inaccurate stamping positioning, affecting the accuracy and quality of the stamped products.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a mold stamping integrated system equipped with a mold stamping force fine-tuning structure, comprising: A stamping part, the stamping part comprises a frame, an outer surface of the frame is slidably connected with a slider, and an upper die set is fixedly mounted on the lower surface of the slider; A positioning part, wherein the positioning part comprises a workbench, an outer surface of the workbench is fixedly connected to a side of the frame close to the slider, a lower die set is fixedly installed on the upper surface of the workbench through a positioning pin, and a loading piece connected to the upper surface of the workbench is arranged on one side of the lower die set; The loading part includes a bottom frame, the bottom end of the bottom frame is fixedly connected to the upper surface of the workbench, the bottom frame is rotatably connected to a lower roller on one side close to the lower die set, the bottom frame is rotatably connected to a connecting rod on one side away from the lower roller via an axle, and a strong torsion spring connected to the inside of the connecting rod is sleeved on the outer surface of the axle, the connecting rod is rotatably connected to a top frame on one end away from the bottom frame, and the top frame is rotatably connected to an upper roller on one side close to the lower roller; The outer surface of the connecting rod is provided with an adjusting member for adjusting the height of the lower die set, and the side of the lower die set close to the frame is provided with a horizontal positioning member for correcting the position of the external plate.

[0006] Furthermore, the top frame adopts a segmented design, a section of the top frame away from the lower mold assembly adopts an arc-shaped design, and the top frame is provided with two and symmetrically distributed around the upper roller.

[0007] Furthermore, the adjusting part includes a double-headed threaded rod, which is rotatably connected to the upper surface of the workbench through a support seat, and the circumferential outer surface of the double-headed threaded rod is sleeved with a wedge block that fits the workbench, and the wedge blocks are provided with two and are symmetrically distributed left and right with the lower module as the center, and the double-headed threaded rod is fixedly connected to a worm gear at one end close to the base frame.

[0008] Furthermore, a worm meshing with a worm wheel is rotatably connected to the upper surface of the workbench through an axle seat, a transmission tooth is fixedly connected to one end of the worm wheel close to the frame, and a gear meshing with the transmission tooth is fixedly connected to one side of the connecting rod close to the frame.

[0009] Furthermore, the horizontal positioning member includes a pressure block, and the workbench is slidably connected to the lower surface of the pressure block through a sliding groove opened on its upper surface, and a tension spring is provided on the side of the pressure block away from the lower mold group, and a fixing plate fixedly connected to the upper surface of the workbench is provided on the side of the tension spring away from the pressure block.

[0010] Furthermore, an elastic part is provided on the side of the pressure block away from the tension spring, the pressure block adopts a slope design, and a groove is provided on the side of the pressure block close to the fixed plate, the lower surface of the slider is fixedly connected with a connecting rod, and the pressure blocks are provided in two groups and are symmetrically distributed with the lower module as the center.

[0011] Furthermore, a screw rod is rotatably connected inside the slider, a connecting rod is sleeved on the outer surface of the screw rod, an end of the connecting rod away from the slider is rotatably connected to a crankshaft, and an outer end of the crankshaft is rotatably connected to the inside of the frame.

[0012] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is provided with a feeding piece and a horizontal positioning piece. During the feeding process, a double-layer conveyor is arranged in the feeding piece, which is divided into an upper roller and a lower roller, and the upper roller and the lower roller rotate in opposite directions and are both electrically controlled. When the plate is placed above the lower roller, it will pass through the upper roller and the top plate during the conveying process to the stamping part. The top plate adopts a segmented design, and the side away from the lower die set slowly tilts upward. Through the connecting rod and the strong torsion spring inside it, it can ensure that the top plate and the bottom plate are always in a horizontal state, and can adapt to plates of different thicknesses within a certain range, and can convey the plate between the upper roller and the lower roller to the lower die set. The upper roller and the lower roller are attached to the upper and lower sides of the plate for clamping to prevent the plate from warping and deforming. The connecting rod in the horizontal positioning piece is arranged on the lower surface of the slider, and the length of the connecting rod is greater than the thickness of the upper die set. Before the stamping part stamps the plate, the pressing blocks on both sides are moved to the middle lower die set by pressing the connecting rod downward, and the position of the plate on the upper surface of the lower die set is corrected, thereby ensuring the accuracy of plate processing and improving the stamping quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention; Figure 2 It is a schematic diagram of the structure of the stamping part and the positioning part of an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a workbench, a slider, a connecting rod and an upper die assembly according to an embodiment of the present invention; Figure 4 This is a schematic structural diagram of a loading part according to an embodiment of the present invention; Figure 5 It is a schematic diagram of the separation structure of the bottom frame, the strong torsion spring, the top frame and the connecting rod according to the embodiment of the present invention; Figure 6 It is a schematic structural diagram of an adjusting member, a connecting rod and a workbench according to an embodiment of the present invention; Figure 7 It is a schematic structural diagram of a double-start threaded rod, a worm wheel and a worm according to an embodiment of the present invention; Figure 8 It is a schematic structural diagram of a horizontal positioning member, a lower die set and a wedge block according to an embodiment of the present invention; Fig. 9 It is a schematic diagram of the separation structure of the connecting rod, the pressing block, the tension spring and the fixing plate according to an embodiment of the present invention; Fig.10 For the embodiment of the present invention Figure 3 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0015] The numbers in the figure represent respectively: 1. stamping part; 11. frame; 12. slider; 13. upper die set; 14. screw; 15. crankshaft; 2. positioning part; 21. workbench; 211. positioning pin; 212. slide groove; 22. lower die set; 23. feeding part; 231. bottom frame; 232. lower roller; 233. connecting rod; 234. strong torsion spring; 235. top frame; 236. upper roller; 24. adjusting part; 241. double-headed threaded rod; 242. wedge block; 243. worm gear; 244. worm; 245. transmission tooth; 246. gear; 25. horizontal positioning part; 251. pressure block; 2511. groove; 252. tension spring; 253. fixing plate; 254. elastic part; 255. connecting rod. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0017] The present invention will be further described below in conjunction with the embodiments.

[0018] Example:

[0019] See also Figure 1-Figure 10 The present invention provides a technical solution: a die stamping integrated system equipped with a die stamping force fine-tuning structure, comprising: The stamping part 1 comprises a frame 11, a slider 12 is slidably connected to the outer surface of the frame 11, and an upper die set 13 is fixedly mounted on the lower surface of the slider 12; The positioning part 2 includes a workbench 21, the outer surface of the workbench 21 is fixedly connected to the side of the frame 11 close to the slider 12, the upper surface of the workbench 21 is fixedly mounted with a lower die set 22 via a positioning pin 211, and one side of the lower die set 22 is provided with a loading piece 23 connected to the upper surface of the workbench 21; The loading member 23 includes a bottom frame 231, the bottom end of the bottom frame 231 is fixedly connected to the upper surface of the workbench 21, the bottom frame 231 is rotatably connected to a lower roller 232 on one side close to the lower die set 22, the bottom frame 231 is rotatably connected to a connecting rod 233 on one side away from the lower roller 232 through an axle, and a strong torsion spring 234 connected to the inside of the connecting rod 233 is sleeved on the outer surface of the axle, the connecting rod 233 is rotatably connected to a top frame 235 on one end away from the bottom frame 231, and the top frame 235 is rotatably connected to an upper roller 236 on one side close to the lower roller 232; The outer surface of the connecting rod 233 is provided with an adjusting member 24 for adjusting the height of the lower die set 22 , and the side of the lower die set 22 close to the frame 11 is provided with a horizontal positioning member 25 for correcting the position of the external plate.

[0020] The top frame 235 adopts a segmented design. A section of the top frame 235 away from the lower mold assembly 22 adopts an arc design, and a section of the top frame 235 close to the lower mold assembly 22 adopts a flat design. The top frame 235 is provided with two and is symmetrically distributed front and back with the upper roller 236 as the center.

[0021] The adjusting member 24 includes a double-headed threaded rod 241, which is rotatably connected to the upper surface of the workbench 21 through a support seat. The circumferential outer surface of the double-headed threaded rod 241 is sleeved with a wedge block 242 that fits the workbench 21. Two wedge blocks 242 are provided and are symmetrically distributed with the lower module 22 as the center. A worm gear 243 is fixedly connected to one end of the double-headed threaded rod 241 close to the base frame 231.

[0022] A worm 244 meshing with a worm wheel 243 is rotatably connected to the upper surface of the workbench 21 through an axle seat. A transmission tooth 245 is fixedly connected to one end of the worm 244 close to the frame 11. A gear 246 meshing with the transmission tooth 245 is fixedly connected to one side of the connecting rod 233 close to the frame 11.

[0023] The horizontal positioning member 25 includes a pressing block 251, and the workbench 21 is slidably connected to the lower surface of the pressing block 251 through a sliding groove 212 opened on its upper surface. A tension spring 252 is provided on the side of the pressing block 251 away from the lower mold assembly 22, and a fixing plate 253 fixedly connected to the upper surface of the workbench 21 is provided on the side of the tension spring 252 away from the pressing block 251.

[0024] An elastic member 254 is provided on the side of the pressing block 251 away from the tension spring 252. The pressing block 251 is designed with an inclined surface, and a groove 2511 is provided on the side of the pressing block 251 close to the fixed plate 253. A connecting rod 255 is fixedly connected to the lower surface of the slider 12. Two groups of pressing blocks 251 are provided and are symmetrically distributed front and back with the lower module 22 as the center. The elastic member 254 is designed in an arc strip shape, and multiple elastic members 254 are arranged in an array along the longitudinal direction of the pressing block 251.

[0025] The slider 12 is internally rotatably connected with a screw rod 14 , the outer surface of the screw rod 14 is sleeved with a connecting rod, and the end of the connecting rod away from the slider 12 is rotatably connected with a crankshaft 15 , and the outer end of the crankshaft 15 is rotatably connected to the inside of the frame 11 .

[0026] The process of conveying the plate: During actual use, the sheet material to be processed is fed to the upper surface of the lower roller 232. Both the upper roller 236 and the lower roller 232 are electrically driven. The lower roller 232 is provided with multiple groups and extends a long distance away from the frame 11. When the sheet material is placed on the upper surface of the lower roller 232, the lower roller 232 automatically rotates to move the sheet material on its upper surface toward the lower module 22. Accordingly, the upper roller 236 rotates in opposite directions to the lower roller 232. After the upper roller 236 contacts the sheet material, it will also move the sheet material toward the lower module 22.

[0027] In the initial state, since the side of the bottom frame 231 is rotatably connected to the connecting rod 233 through the shaft, the outer surface of the shaft is sleeved with a strong torsion spring 234 connected to the inside of the connecting rod 233. The strong torsion spring 234 can keep the bottom frame 231 and the connecting rod 233 at a small angle without being affected by external forces, and the distance between the bottom frame 231 and the top frame 235 is small, which can allow thinner plates to pass through. Two groups of connecting rods 233 are provided, and taking one side as an example, each group of connecting rods 233 is provided with two.

[0028] The top frame 235 adopts a segmented design. The connecting rod 233 on the side away from the frame 11 is the rear connecting rod 233, and the side close to the frame 11 is the front connecting rod 233. The top frame 235 in the middle section between the front connecting rod 233 and the rear connecting rod 233 is horizontally set, and the top frame 235 of the horizontal section is in a horizontal state with the bottom frame 231. The rear connecting rod 233 on the top frame 235 to its end section adopts an arc design, and the side of the arc section away from the frame 11 is higher, and the overall curvature is gentle, which is conducive to the smooth entry of the plate into the space between the upper roller 236 and the lower roller 232.

[0029] When the thicker plate is conveyed from the lower roller 232 until it moves to the bottom of the upper roller 236, the upper roller 236 between the two arc-shaped upper frames 235 also follows its arc setting and is in an arc state as a whole. The lower surface of the plate fits with the top of the lower roller 232. When its upper surface is close to the upper roller 236, the edge line of the outer surface of the plate close to the upper mold assembly 13 will contact the outer surface of one of the upper rollers 236 set obliquely. When the plate continues to move to the side of the upper mold assembly 13, since the thickness of the plate is greater than the initial gap between the upper roller 236 and the lower roller 232 of the horizontal section, the upper roller 236 and the upper frame 235 will be lifted upward by the plate as a whole. In this process, the distance between the upper frame 235 and the bottom frame 231 is expanded, the angle between the connecting rod 233 and the bottom frame 231 becomes larger, and the strong torsion spring 234 connected to the inside of the connecting rod 233 rotates around the shaft together with the connecting rod 233 and undergoes elastic deformation.

[0030] At this time, the front end of the plate has entered the plane section of the top frame 235. At this time, the distance between the upper roller 236 and the lower roller 232 is the same as the thickness of the plate. The upper surface of the plate fits with the bottom edge of the upper roller 236, and the lower surface of the plate fits with the top edge of the lower roller 232. The upper roller 236 and the lower roller 232 rotate in opposite directions. The friction between the outer surfaces of the upper roller 236 and the lower roller 232 is relatively large. Under the action of the friction, the plate placed between the upper roller 236 and the lower roller 232 is moved to the upper die set 13. The height of the lower roller 232 from the workbench 21 is greater than the height of the lower die set 22, so that the plate can be smoothly moved to the upper surface of the lower die set 22 for stamping.

[0031] The process of adjusting the punching force according to the thickness of the sheet: When the plate enters the loading part 23, the connecting rod 233 rotates clockwise around the shaft rod for a certain angle. At this time, the gear 246 fixedly connected to the outer surface of the connecting rod 233 rotates clockwise synchronously. The rotation of the gear 246 drives the transmission gear 245 meshing with it to rotate counterclockwise. The end of the transmission gear 245 away from the frame 11 is fixedly connected to a worm 244 rotatably connected through the shaft seat, and drives the worm 244 to rotate counterclockwise. The worm 244 rotates the double-threaded rod 241 inside the support seat through the worm gear 243. Since the threads on both sides of the outer surface of the double-threaded rod 241 are set in opposite directions, when the double-threaded rod 241 rotates, the two wedge blocks 242 meshing with the threads move toward each other.

[0032] Since the hypotenuse of the wedge block 242 fits with the side of the lower die set 22, when the wedge block 242 moves toward the lower die set 22, the wedge block 242 will convert the horizontal force applied to the lower die set 22 into the vertical force, so that the lower die set 22 moves slightly upward under the positioning of the positioning pin 211 (in the initial state, the lower die set 22 is connected to the upper surface of the workbench 21 through the positioning pin 211, which ensures the horizontal fixation of the lower die set 22, and the upper surface of the workbench 21 is magnetically connected to the lower die set 22, which can maintain a certain suction force between the lower die set 22 and the upper surface of the workbench 21). The distance of the initial increase in the gap between the upper roller 236 and the lower roller 232 is the thickness of the plate. At this time, when the distance between the lower die set 22 and the upper die set 13 decreases, the impact force will gradually increase as the distance decreases. This is because during this process, the mold closing speed is relatively stable. As the distance decreases, the distance that the upper mold assembly 13 works on the lower mold assembly 22 per unit time is shortened. According to the impulse theorem, when the momentum change remains unchanged, a smaller action distance means that the impact force will increase.

[0033] When the thickness of the plate is equal to the distance between the upper roller 236 and the lower roller 232 in the initial state, the loading of the plate will not cause the top frame 235 and the upper roller 236 to be lifted upward, and the angle of the connecting rod 233 will not change, that is, the adjustment member 24 will not change as a result, and the lower die set 22 is in the initial position. At this time, the distance between the lower die set 22 and the upper die set 13 is suitable for the plate of this thickness, that is, the punching force of the plate of this thickness is suitable in this case, and no additional adjustment is required.

[0034] The process of the horizontal positioning member 25 correcting the position of the plate: When the plate enters between the upper die set 13 and the lower die set 22, and the plate fits with the upper surface of the lower die set 22, the stamping part 1 is started to start the stamping operation. The driving unit arranged on the outer surface of the frame 11 is connected to the crankshaft 15 for transmission. The connecting rod sleeved on the outer surface of the crankshaft 15 drives the screw 14 to rotate. The screw 14 is rotatably connected to the slider 12 through the die handle, driving the slider 12 to slide on the outer surface of the frame 11 as a whole. When the crankshaft 15 drives the connecting rod upward, the slider 12 is at the top dead point. At this time, the distance between the upper die set 13 and the lower die set 22 is the largest. When the crankshaft 15 rotates to drive the connecting rod downward, the slider 12 drives the upper die set 13 downward for stamping.

[0035] During the downward stamping process of the upper die set 13, a connecting rod 255 is fixedly connected to the lower surface of the slider 12. The connecting rod 255 is of L-shaped design, and the height of the connecting rod 255 is greater than the thickness of the upper die set 13. During the downward movement of the upper die set 13, the bottom end of the connecting rod 255 contacts the bevel of the pressing block 251. Two pressing blocks 251 are provided and are symmetrically arranged with the lower die set 22 as the center. The upper part of the pressing block 251 is provided with a bevel, and the bevel is higher on the side close to the lower die set 22. When the upper die set 13 moves downward, the bottom end of the connecting rod 255 contacts the bevel of the pressing block 251. Since the pressing block 251 is designed with a bevel, the vertical downward force given by the connecting rod 255 to it will be converted into a horizontal force, driving the pressing block 251 to move closer to the lower die set 22.

[0036] As the distance of the connecting rod 255 moving downward increases, the distance of the pressing block 251 moving toward the middle also gradually increases. The pressing blocks 251 on both sides move toward the middle synchronously until the two sides of the plate placed on the upper surface of the lower mold 22 are pressed to correct the position. The elastic member 254 arranged on the outer surface of the pressing block 251 can fit with the side of the plate. The elastic member 254 can be designed in the shape of an arc strip, and multiple of them are arranged in an array in the longitudinal direction. When the pressing block 251 corrects the position of the plate above the lower mold 22, the arc strip higher than the height of the lower mold 22 does not contact the side of the lower mold 22, and contacts the side of the plate through its arc surface, so that the plate is squeezed and positioned from both sides, which is conducive to eliminating the gap. The arc strip lower than the height of the lower mold 22 is tightly attached to the side of the lower mold 22 and undergoes elastic deformation. When the height of the lower module 22 changes due to different thicknesses of the plates, the elastic member 254 on the outer surface of the pressing block 251 is a plurality of longitudinally arranged arc-shaped strips, which can accommodate plates of different heights placed above the lower module 22 .

[0037] When the connecting rod 255 continues to move downward, the distance between the upper mold 13 and the lower mold 22 decreases. At this time, the outer surface of the bottom end of the connecting rod 255 slides into the groove 2511 inside the pressure block 251, and the cross bar at the bottom end of the connecting rod 255 engages with the groove 2511. The fixed plate 253 is fixedly connected to the upper surface of the workbench 21, and the fixed plate 253 and the pressure block 251 are connected by a tension spring 252. When the bottom end of the connecting rod 255 enters the groove 2511, the pressure block 251 moves toward the fixed plate 253 along the trajectory of the slide groove 212 under the action of the tension spring 252, and restores its initial state (after positioning, the elastic member 254 is restored to its initial position to avoid punching the elastic member 254 during the punching process of the plate. At the same time, it also avoids the elastic member 254 from affecting the upper mold 13 and the lower mold 22).

[0038] The process of punching a sheet: At the same time, the lower surface of the upper die set 13 begins to fit with the upper surface of the plate, and the connecting rod 255 continues to press downward. Since the open ends on both sides of the groove 2511 are designed with curved surfaces, and the bottom end of the connecting rod 255 is at the open end position of the groove 2511 (the width of the inclined surface of the pressing block 251 is greater than the width of the groove 2511, when the bottom end of the connecting rod 255 fits with the inner wall of the groove 2511, the connecting rod 255 is at the curved surface position of the open end of the groove 2511), after the connecting rod 255 is subjected to force, its L-shaped bottom end will slide out from the side to the outside of the pressing block 251, and be in a slightly inclined state. The upper die set 13 and the lower die set 22 cooperate with each other, and the plate is instantly punched under the action of the crankshaft 15 and the connecting rod. After the plate is punched, it moves to the side away from the bottom frame 231 under the action of the lower roller 232. After the punching is completed, it is unloaded by the external unloading cylinder.

[0039] In summary, the above-mentioned process of loading, correction and punching has the following advantages: Advantage 1: During the loading process, a double-layer conveyor is arranged in the loading piece 23, which is divided into two layers, the upper roller 236 and the lower roller 232. The upper roller 236 and the lower roller 232 rotate in opposite directions and are both electrically controlled, so that the plate between the upper roller 236 and the lower roller 232 can be conveyed to the lower module 22.

[0040] Advantage 2: The top frame 235 and the bottom frame 231 are rotatably connected via two connecting rods 233. Taking one side as an example, a parallelogram structure is formed between the top frame 235, the bottom frame 231 and the two connecting rods 233. The horizontal section in the top frame 235 always remains parallel to the bottom frame 231, and the upper and lower sides of the plate can be clamped to prevent the plate from warping and deformation.

[0041] Advantage three, the adjusting member 24 can adjust the height of the lower die set 22 by the inclination angle of the connecting rod 233, that is, the thickness of the plate. If the plate is thin and the punching force is met, the height of the lower die set 22 does not need to be adjusted. The thicker the plate, the larger the angle between the connecting rod 233 close to the lower die set 22 and the base frame 231 becomes (no more than ninety degrees at most). The larger the rotation degree of the gear 246 fixedly connected to the outer surface of the connecting rod 233, the transmission gear 245 and the worm 244 are driven to rotate. The worm wheel 243 sleeved on the outer end of the double-headed threaded rod 241 meshes with it and rotates synchronously, and finally the wedge blocks 242 on both sides are squeezed towards the lower die set 22 at the same time. The hypotenuse of the wedge block 242 converts the horizontal force into the vertical force, so that the lower die set 22 moves upward for a distance, thereby reducing the distance between the upper die set 13 and the lower die set 22. During this process, the height of the lower die 22 can be adjusted according to the different thicknesses of the plates, so as to meet the demand for greater punching force as the thicker the plates are (when the distance between the upper die 13 and the lower die 22 decreases, the mold closing speed remains unchanged, and the plates are compressed or formed in a shorter time, which means that the force acting on the plates will be more concentrated, resulting in increased impact force).

[0042] Advantage 4: The connecting rod 255 in the horizontal positioning member 25 is set on the lower surface of the slider 12. The length of the connecting rod 255 is greater than the thickness of the upper mold group 13. Before the stamping part 1 stamps the plate, the pressing blocks 251 on both sides are moved toward the middle lower mold group 22 by pressing the connecting rod 255 downward, so as to correct the position of the plate on the upper surface of the lower mold group 22.

[0043] Advantage 5: The elastic member 254 is composed of a plurality of longitudinally distributed arc-shaped strips, which can meet the requirement that when the lower die set 22 is at different heights, there is always an arc-shaped strip higher than the lower die set 22, and the outer surface of the arc-shaped strip higher than the upper surface of the lower die set 22 fits the plate, and is aligned and corrected from both sides to meet the use of lower die sets 22 at different heights. After the correction is completed, the connecting rod 255 is engaged with the inside of the groove 2511, and the pressing block 251 is reset under the action of the tension spring 252, thereby avoiding damage to the elastic member 254 during the stamping process, and avoiding the situation where the stamping precision is inaccurate due to the elastic member 254 being between the upper die set 13 and the lower die set 22.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mold stamping integrated system equipped with a mold stamping force fine-tuning structure, characterized in that: include: A stamping part (1), the stamping part (1) comprising a frame (11), the outer surface of the frame (11) being slidably connected to a slider (12), and the lower surface of the slider (12) being fixedly mounted with an upper die assembly (13); A positioning portion (2), the positioning portion (2) comprising a workbench (21), the outer surface of the workbench (21) being fixedly connected to a side of the frame (11) close to the slider (12), a lower die set (22) being fixedly mounted on the upper surface of the workbench (21) via a positioning pin (211), and a loading piece (23) connected to the upper surface of the workbench (21) being provided on one side of the lower die set (22); The loading member (23) comprises a bottom frame (231), the bottom end of the bottom frame (231) is fixedly connected to the upper surface of the workbench (21), the side of the bottom frame (231) close to the lower die set (22) is rotatably connected to a lower roller (232), the side of the bottom frame (231) away from the lower roller (232) is rotatably connected to a connecting rod (233) via an axle, and the outer surface of the axle is sleeved with a strong torsion spring (234) connected to the inside of the connecting rod (233), the end of the connecting rod (233) away from the bottom frame (231) is rotatably connected to a top frame (235), and the side of the top frame (235) close to the lower roller (232) is rotatably connected to an upper roller (236); The outer surface of the connecting rod (233) is provided with an adjusting member (24) for adjusting the height of the lower die set (22), and a horizontal positioning member (25) for correcting the position of an external plate is provided on a side of the lower die set (22) close to the frame (11).

2. A mold stamping integrated system equipped with a mold stamping force fine-tuning structure according to claim 1, characterized in that: The top frame (235) adopts a segmented design, a section of the top frame (235) away from the lower die set (22) adopts an arc-shaped design, and the top frame (235) is provided with two symmetrically distributed around the upper roller (236) as the center.

3. The mold stamping integrated system equipped with a mold stamping force fine-tuning structure according to claim 1, characterized in that: The adjusting member (24) comprises a double-ended threaded rod (241), the double-ended threaded rod (241) being rotatably connected to the upper surface of the workbench (21) via a support seat, a wedge-shaped block (242) fitting the workbench (21) is sleeved on the circumferential outer surface of the double-ended threaded rod (241), two wedge-shaped blocks (242) are provided and are symmetrically distributed with the lower module (22) as the center, and a worm gear (243) is fixedly connected to one end of the double-ended threaded rod (241) close to the base frame (231).

4. The mold stamping integrated system equipped with a mold stamping force fine-tuning structure according to claim 3, characterized in that: A worm (244) meshing with a worm wheel (243) is rotatably connected to the upper surface of the workbench (21) via a shaft seat; a transmission tooth (245) is fixedly connected to one end of the worm (244) close to the frame (11); and a gear (246) meshing with the transmission tooth (245) is fixedly connected to one side of the connecting rod (233) close to the frame (11).

5. The mold stamping integrated system equipped with a mold stamping force fine-tuning structure according to claim 4, characterized in that: The horizontal positioning member (25) comprises a pressing block (251); the workbench (21) is slidably connected to the lower surface of the pressing block (251) via a sliding groove (212) provided on the upper surface thereof; a tension spring (252) is provided on the side of the pressing block (251) away from the lower die set (22); and a fixing plate (253) fixedly connected to the upper surface of the workbench (21) is provided on the side of the tension spring (252) away from the pressing block (251).

6. The mold stamping integrated system equipped with a mold stamping force fine-tuning structure according to claim 5, characterized in that: An elastic member (254) is provided on a side of the pressure block (251) away from the tension spring (252); the pressure block (251) is designed with an inclined surface, and a groove (2511) is provided on a side of the pressure block (251) close to the fixed plate (253); a connecting rod (255) is fixedly connected to the lower surface of the slider (12); and two groups of pressure blocks (251) are provided and are symmetrically distributed with the lower module (22) as the center.

7. The mold stamping integrated system equipped with a mold stamping force fine-tuning structure according to claim 1, characterized in that: The interior of the slider (12) is rotatably connected to a screw rod (14), the outer surface of the screw rod (14) is sleeved with a connecting rod, one end of the connecting rod away from the slider (12) is rotatably connected to a crankshaft (15), and the outer end of the crankshaft (15) is rotatably connected to the interior of the frame (11).

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