Automobile high-carbon steel punch forming die and forming process thereof

Abstract

The invention discloses an automobile high-carbon steel punch forming die and a forming process thereof, and relates to the technical field of automobile part manufacturing, the automobile high-carbon steel punch forming die comprises a punch forming mechanism, and the punch forming mechanism comprises an upper punch die; according to the high-carbon steel punch forming die for the automobile, a high-carbon steel material is placed between the upper punching die and the lower punching die, and the chamfering structure, the pre-folding structure, the right-angle edge folding structure and the shaping structure are distributed between the upper punching die and the lower punching die, so that during punching, the carbon steel material sequentially passes through bending edges of parts with the chamfering structures to be chamfered firstly; the part is bent upwards through the pre-bending structure to avoid friction generated by bending, then the part is pre-bent upwards through the pre-bending structure to avoid scratch on the rear bent edge, and then the bent edge is bent upwards through the right-angle edge-folding structure to be over-bent, which is equivalent to forming and solves the problem of outward opening of an angle, and meanwhile, the left, right and lower surfaces of the part are controlled by the bending structure and the shaping structure, and the part is bent by an angle through back pressing of a front punch. And the profile tolerance of the fillet and the bent end surface meets the size requirement.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts manufacturing, in particular to an automobile high-carbon steel stamping die and a forming process thereof. Background Art

[0002] In the automotive industry, high-carbon steel, due to its high strength and hardness, is widely used in the manufacture of automotive parts requiring high strength and rigidity. Currently, traditional stamping dies and processes are typically used for stamping high-carbon steel for automotive applications. Stamping dies, commonly known as cold stamping dies, are specialized equipment used to process materials (metal or non-metal) into parts (or semi-finished products) during the cold stamping process. Stamping is a pressure processing method that uses a die mounted on a press at room temperature to apply pressure to the material, causing it to separate or plastically deform, thereby producing the desired part.

[0003] In the prior art, for example, the patent publication number CN108889866A discloses a "stamping die spring device", which includes a stamping machine, wherein a stamping block is fixedly mounted on the upper end of the inner portion of the stamping machine, a stamping cavity is provided on the middle side of the upper surface of the stamping block, a spring plate groove is provided on the inner lower end of the stamping cavity, a circular groove is provided in the middle of the inner lower end of the spring plate groove, a circular plug is slidably mounted on the inner portion of the circular groove, and a spring is fixedly connected to the lower end of the circular plug. The conical chutes on the four sides are in sliding cooperation with the conical slider, and the conical chutes and the conical slider are both wide outside and narrow inside, so that the circular plug will not rock left and right when it moves up and down, so that the spring plate will not rock when it is pushed up, and the spring plate and the square plate will not be stuck in the stamping cavity. The manganese steel layer has good rigidity and is not easy to bend. By attaching the high-carbon steel fiber layer to its upper side, the manganese steel layer can be made stronger and the spring plate will not bend.

[0004] When stamping existing automotive high-carbon steel, due to defects in the design of the stamping mold, the bending edge angle opens outward during operation, resulting in severe scratches on the outer surface, making it impossible to accurately control the dimensions and causing a decline in product quality.

[0005] Therefore, we propose an automotive high carbon steel stamping die and its forming process to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a high-carbon steel stamping die for automobiles and its forming process, so as to solve the problem raised in the above background technology that due to defects in the design of the stamping die, the bending edge angle is opened outward during operation, resulting in serious scratches on the outer surface, making it impossible to accurately control the size and causing a decline in product quality.

[0007] To achieve the above object, the present invention provides the following technical solution: a stamping die for high-carbon steel for automobiles, comprising a stamping mechanism, wherein the stamping mechanism comprises an upper stamping die, and the bottom of the upper stamping die is provided with a pre-folding structure, a right-angle folding structure, a bending structure, and a shaping structure;

[0008] The stamping and forming mechanism is provided with a cooling mechanism, which includes a cooling trough, a plurality of cooling nozzles are evenly distributed on the inner side of the cooling trough, a water receiving hose is provided on the top of the cooling trough, one end of the water receiving hose is fixedly connected to a delivery pump, and the bottom of the delivery pump is fixedly connected to a water pump;

[0009] A circulation mechanism is provided at the bottom of the stamping and forming mechanism, and the circulation mechanism includes a circulation pool, a filter plate is provided on the inner side of the circulation pool, a filter core cotton is provided at the bottom of the filter plate, and a side support filter plate is provided on the side of the filter core cotton. A limit seat is provided at the four inner corners of the circulation pool, a limit plate is provided on the side of the limit seat, and a limit bolt is provided on the top of the limit plate, and the limit bolt is movable through the inner side of the limit seat.

[0010] Preferably, a top cover plate is provided on the top of the upper stamping die, and a lifting structure is provided through the inner side of the upper stamping die.

[0011] Preferably, a lower punching die is provided at the bottom of the upper punching die, the bottom of the lifting structure passes through the inner side of the lower punching die, and a bottom connecting seat is provided at the bottom of the lower punching die.

[0012] Preferably, a plurality of water flow holes are evenly opened through the inner wall of the cooling groove, and the water flow holes are connected to the interior of the cooling nozzle.

[0013] Preferably, the bottom of the water pumping pipe is connected to a filter cartridge, and the filter cartridge is arranged inside the circulation pool.

[0014] Preferably, a coolant pump is provided on the top of the cooling tank, one end of the coolant pump is fixedly connected to a straight pipe, and one end of the straight pipe is fixedly connected to a cooling storage tank.

[0015] Preferably, one end of the cooling storage tank is fixedly connected to a second bend pipe, one end of the second bend pipe is fixedly connected to a connecting block, a cooling pipe is connected to the connecting block, the cooling pipe is distributed inside the cooling tank, the top of the connecting block is connected to a first bend pipe, and one end of the first bend pipe is connected to the coolant pump.

[0016] Preferably, support seats are provided at the four inner corners of the circulation pool, and the filter cotton is provided between adjacent support seats.

[0017] A forming process for a high-carbon steel stamping die for an automobile comprises the following steps:

[0018] S1. When stamping high-carbon steel for automobiles, the high-carbon steel material is placed between the upper stamping die and the lower stamping die, and the chamfering structure, pre-folding structure, right-angle folding structure and shaping structure are distributed between the upper stamping die and the lower stamping die. When stamping, the carbon steel material is first chamfered through the bending edge of the chamfering structure parts in turn to avoid friction caused by bending, and then pre-bends upward through the pre-folding structure parts to avoid scratches on the bending edge later, and then folds the bending edge upward through the right-angle folding structure, which is equivalent to forming and solves the problem of outward opening of the angle. At the same time, the bending structure and the shaping structure control the left and right and bottom of the parts, and the back pressure of the front punch is used to make the bending angle, fillet and bending end face contour of the parts meet the size requirements. The lifting structure provides lifting and adjustment during use, and the bottom seat provides installation support.

[0019] S2. During the stamping process, the cooling water source is connected to the cooling tank through the inside, and the water hose is connected to the cooling tank, which is then connected to the delivery pump through the water hose. A suction pipe is connected to the bottom of the delivery pump, and then filtered through the filter cartridge and extracted. Subsequently, the coolant is delivered through the delivery pump and the water hose, so that the coolant is fully input into the interior of the cooling tank, and is connected to the interior of the cooling tank through the water flow hole, so that the coolant is sprayed out of the cooling nozzle, which is conducive to spraying the cooling on the upper stamping die, thereby achieving a high-efficiency cooling effect.

[0020] S3. During the spraying process, the coolant pump is connected to the cooling storage tank through a straight pipe, and the coolant is cooled at a low temperature through the cooling storage tank. The second elbow is connected to the cooling storage tank, and the second elbow is used to connect to the connecting block. The cooling pipeline is distributed on the connecting block, thereby facilitating the refrigeration treatment of the coolant and achieving further high-efficiency cooling to ensure a low-temperature effect.

[0021] S4. After spraying, the water flows naturally into the interior of the circulation mechanism, and the inflowing water is subjected to primary coarse filtration through the filter plate. Then, when it enters the interior of the circulation pool, it is further refined and filtered through the filter cotton. The filtered liquid is collected into the interior of the circulation pool through the side support filter plate, thereby achieving effective energy saving effect, reducing the use of coolant, and improving the effect of water resource conservation.

[0022] S5. The filter plate can be disassembled separately, which is convenient for replacing the filter cotton separately after long-term filtering use. When replacing, the water suction pipe is manually loosened, so that the limit plate is retracted into the inside of the limit seat, which makes it convenient to take out the filter cotton for quick replacement. At the same time, it is also convenient to use the limit plate to quickly fix the filter cotton to ensure stability.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention places high carbon steel material between the upper punching die and the lower punching die, and distributes chamfering structure, pre-folding structure, right-angle folding structure and shaping structure between the upper punching die and the lower punching die. When stamping, the carbon steel material is first chamfered by the bending edge of the chamfering structure part to avoid friction caused by bending, and then the part is pre-bent upward by the pre-folding structure to avoid scratches on the bending edge later, and then the bending edge is folded upward by the right-angle folding structure, which is equivalent to forming and solves the problem of outward opening of the angle. At the same time, the bending structure and the shaping structure control the left and right and bottom of the part, and the front punch is used to press back to make the bending angle, fillet and bending end face profile of the part meet the size requirements;

[0025] 2. The present invention connects the cooling water source to the cooling tank, connects the cooling tank with a water receiving hose, connects the water receiving hose to the delivery pump, connects a water extraction pipe to the bottom of the delivery pump, filters the water through the filter cartridge, and extracts the water, which is then delivered through the delivery pump and the water receiving hose, so that the coolant is fully input into the cooling tank, communicates with the interior of the cooling tank through the water flow hole, so that the coolant is sprayed out of the cooling nozzle, which is conducive to spraying the cooling on the upper stamping die, achieving a high-efficiency cooling effect, and is connected to the cooling storage tank through a straight pipe. The coolant is cooled at a low temperature by the cooling storage tank, and is connected to the second elbow through the cooling storage tank. The second elbow is used to connect to the connecting block, and the cooling pipeline is distributed on the connecting block, thereby facilitating the refrigeration of the coolant and achieving a further high-efficiency cooling effect to ensure a low-temperature effect.

[0026] 3. In the present invention, after spraying, the water naturally flows into the interior of the circulation mechanism, and the inflowing water is subjected to primary coarse filtration through the filter plate. Then, when entering the interior of the circulation pool, it is further refined and filtered through the filter element cotton. The filtered liquid is collected into the interior of the circulation pool through the side filter plate, thereby achieving effective energy saving, reducing the use of coolant, and improving the effect of water resource conservation. The filter plate can be disassembled separately, which is convenient for the filter element cotton to be replaced separately after long-term filtration use. When replacing, the water pump is manually loosened, so that the limit plate is retracted into the interior of the limit seat, thereby facilitating the removal of the filter element cotton for quick replacement, and also facilitating the use of the limit plate to quickly fix the filter element cotton to ensure stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of a high-carbon steel stamping die for automobiles according to the present invention;

[0028] Figure 2 This is a schematic structural diagram of another angle of a high carbon steel stamping die for automobiles according to the present invention;

[0029] Figure 3 This is a schematic side sectional view of a high carbon steel stamping die for automobiles according to the present invention;

[0030] Figure 4 This is a schematic diagram of the internal structure of a cooling mechanism for a high-carbon steel stamping die for an automobile according to the present invention;

[0031] Figure 5 This is a schematic structural diagram of a cooling mechanism for a high-carbon steel stamping die for an automobile according to the present invention;

[0032] Figure 6 This is a schematic structural diagram of a circulation mechanism of a high-carbon steel stamping die for automobiles according to the present invention;

[0033] Figure 7 The figure is a partial structural diagram of a circulation mechanism of a high carbon steel stamping die for automobiles according to the present invention.

[0034] In the picture:

[0035] 1. Stamping mechanism; 101. Top cover; 102. Upper stamping die; 103. Chamfering structure; 104. Pre-folding structure; 105. Right-angle folding structure; 106. Bending structure; 107. Shaping structure; 108. Lifting mechanism; 109. Lower stamping die; 110. Bottom connector; 2. Cooling mechanism; 201. Cooling trough; 202. Water flow hole; 203. Cooling nozzle; 204. Water connection hose; 205. Pumping machine; 206, water suction pipe; 207, filter cartridge; 208, coolant pump; 209, straight pipe; 210, first bend pipe; 211, second bend pipe; 212, cooling storage tank; 213, connecting block; 214, cooling pipe; 3, circulation mechanism; 301, filter plate; 302, support seat; 303, filter element cotton; 304, side support filter plate; 305, limit seat; 306, limit bolt; 307, limit plate. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0037] Example 1: Figure 1-Figure 7 As shown, the present invention provides a technical solution: a stamping die for high carbon steel of an automobile, comprising a stamping mechanism 1, wherein the stamping mechanism 1 comprises an upper stamping die 102, and the bottom of the upper stamping die 102 is provided with a pre-folding structure 104, a right-angle folding structure 105, a bending structure 106 and a shaping structure 107;

[0038] The stamping mechanism 1 is provided with a cooling mechanism 2, which includes a cooling trough 201. A plurality of cooling nozzles 203 are evenly distributed on the inner side of the cooling trough 201. A water receiving hose 204 is provided on the top of the cooling trough 201. One end of the water receiving hose 204 is fixedly connected to a delivery pump 205. The bottom of the delivery pump 205 is fixedly connected to a water extraction pipe 206.

[0039] The bottom of the stamping and forming mechanism 1 is provided with a circulation mechanism 3, which includes a circulation pool. A filter plate 301 is provided on the inner side of the circulation pool. A filter cotton 303 is provided at the bottom of the filter plate 301. Side support filter plates 304 are provided on the sides of the filter cotton 303. Limit seats 305 are provided at the four corners of the inner side of the circulation pool. Limit plates 307 are provided on the sides of the limit seats 305. Limit pins 306 are provided on the top of the limit plates 307. The limit pins 306 are movable through the inner side of the limit seats 305. A top cover plate 101 is provided on the top of the upper stamping die 102. A lifting structure 108 is provided on the inner side of the upper stamping die 102. A lower stamping die 109 is provided at the bottom of the upper stamping die 102. The bottom of the lifting structure 108 extends through the inner side of the lower stamping die 109. A bottom connection seat 110 is provided at the bottom of the lower stamping die 109.

[0040] In this embodiment, when stamping high-carbon steel for automobiles, the high-carbon steel material is placed between the upper stamping die 102 and the lower stamping die 109, and the chamfering structure 103, pre-folding structure 104, right-angle folding structure 105 and shaping structure 107 are distributed between the upper stamping die 102 and the lower stamping die 109. When stamping, the carbon steel material is first chamfered through the bending edge of the chamfering structure 103 to avoid friction caused by bending, and then the part is pre-bent upward through the pre-folding structure 104 to avoid scratches on the bending edge later, and then the bending edge is folded upward through the right-angle folding structure 105, which is equivalent to forming and solves the problem of outward angle opening. At the same time, the bending structure 106 and the shaping structure 107 control the left and right and bottom of the part, and through the back pressure of the front punch, the bending angle, fillet and bending end face contour of the part meet the size requirements. The lifting structure 108 provides lifting and adjustment during use, and the bottom seat 110 provides installation support. During the stamping process, a cooling water source is connected to the cooling tank 201, a water hose 204 is connected to the cooling tank 201, and the water hose 204 is connected to the delivery pump 205. A water extraction pipe 206 is connected to the bottom of the delivery pump 205, and then filtered through the filter cartridge 207 and extracted, and then transported through the delivery pump 205 and the water hose 204, so that the coolant is fully input into the interior of the cooling tank 201, and is connected to the interior of the cooling tank 201 through the water flow hole 202, so that the coolant is sprayed out of the cooling nozzle 203, which is conducive to spraying the cooling on the upper stamping die 102, thereby achieving a high-efficiency cooling effect. After spraying, the water naturally flows into the interior of the circulation mechanism 3. The inflowing water is subjected to primary coarse filtration by the filter plate 301. Then, when entering the interior of the circulation tank, it is further refined and filtered by the filter element 303. The filtered liquid is collected into the interior of the circulation tank through the side filter plate 304, thereby achieving effective energy saving, reducing the use of coolant, and improving the effect of water resource conservation. The filter plate 301 can be removed separately, which facilitates the replacement of the filter element 303 after long-term filtering use. When replacing, the water pump 206 is manually loosened, so that the limit plate 307 retracts into the interior of the limit seat 305, thereby facilitating the removal of the filter element 303 for quick replacement. At the same time, it is also convenient to use the limit plate 307 to quickly fix the filter element 303 to ensure stability.

[0041] Example 2: Figure 1-Figure 7As shown, the inner wall of the cooling trough 201 is evenly penetrated with a plurality of water flow holes 202, which are connected to the interior of the cooling nozzle 203. The bottom of the water extraction pipe 206 is connected to a filter cartridge 207, which is arranged inside the circulation tank. A coolant pump 208 is arranged at the top of the cooling trough 201. One end of the coolant pump 208 is fixedly connected to a straight pipe 209, and one end of the straight pipe 209 is fixedly connected to a cooling storage tank 212. One end of the cooling storage tank 212 is fixedly connected to a second elbow 211, and one end of the second elbow 211 is fixedly connected to a connecting block 213. The connecting block 213 is connected to a cooling pipe 214. The cooling pipe 214 is distributed inside the cooling trough 201. The top of the connecting block 213 is connected to a first elbow 210, and one end of the first elbow 210 is connected to the coolant pump 208.

[0042] In this embodiment, during the spraying process, the coolant pump 208 is connected to the cooling storage tank 212 through the straight pipe 209, the coolant is subjected to low-temperature cooling treatment through the cooling storage tank 212, and is connected to the second bend pipe 211 through the cooling storage tank 212. The second bend pipe 211 is used to connect to the connecting block 213, and the cooling pipe 214 is distributed on the connecting block 213, thereby facilitating the refrigeration treatment of the coolant and achieving further high-efficiency cooling to ensure the low-temperature effect.

[0043] Example 3: Figure 1-Figure 7 As shown, support seats 302 are provided at the four inner corners of the circulation pool, and filter cotton 303 is provided between adjacent support seats 302 .

[0044] In this embodiment, the support base 302 can provide a stable erection support to ensure the stability of the filter cotton 303, thereby achieving overall stable operation.

[0045] The working principle of the entire mechanism is as follows: when stamping high-carbon steel for automobiles, the high-carbon steel material is placed between the upper stamping die 102 and the lower stamping die 109, and the chamfering structure 103, pre-folding structure 104, right-angle folding structure 105 and shaping structure 107 are distributed between the upper stamping die 102 and the lower stamping die 109. When stamping, the carbon steel material is first chamfered through the chamfering structure 103 to avoid friction caused by bending, and then the part is pre-bent upward through the pre-folding structure 104 to avoid scratches on the bending edge later, and then the bending edge is folded upward through the right-angle folding structure 105, which is equivalent to forming and solves the problem of outward opening of the angle. At the same time, the bending structure 106 and the shaping structure 107 control the left and right and bottom of the part. By back pressure from the front punch, the bending angle, fillet and bending end face profile of the part meet the size requirements. The lifting structure 108 provides lifting and adjustment during use, and the bottom seat 110 provides installation support. During the stamping process, the cooling water source is connected to the cooling tank 201, and the water hose 204 is connected to the cooling tank 201. The water hose 204 is connected to the delivery pump 205, and a water extraction pipe 206 is connected to the bottom of the delivery pump 205. The water is filtered through the filter cartridge 207 and extracted. It is then transported through the delivery pump 205 and the water hose 204, so that the coolant is fully input into the interior of the cooling tank 201, and the coolant is connected to the cooling tank 201 through the water hole 202 and the cooling tank 201. The internal connection allows the coolant to be sprayed out of the cooling nozzle 203, which is conducive to spraying the cooling on the upper stamping die 102, achieving a high-efficiency cooling effect. During the spraying process, the coolant pump 208 is connected to the cooling storage tank 212 through the straight pipe 209, and the coolant is subjected to low-temperature cooling treatment through the cooling storage tank 212. The second bend pipe 211 is connected to the connecting block 213 through the cooling storage tank 212, and the cooling pipe 214 is distributed on the connecting block 213, thereby facilitating the refrigeration treatment of the coolant and achieving further high-efficiency cooling to ensure a low-temperature effect. After spraying, the water naturally flows into the interior of the circulation mechanism 3, and the inflowing water is filtered through the filter plate 301. After primary coarse filtration, when it then enters the interior of the circulation pool, it is further refined and filtered through the filter cotton 303. The filtered liquid is collected into the interior of the circulation pool through the side filter plate 304, thereby achieving effective energy saving, reducing the use of coolant, and improving the effect of water resource conservation. The filter plate 301 can be disassembled separately, which is convenient for the filter cotton 303 to be replaced separately after long-term filtration use. When replacing, the water pump 206 is manually loosened, so that the limit plate 307 is retracted into the interior of the limit seat 305, thereby facilitating the removal of the filter cotton 303 for quick replacement, and also facilitating the use of the limit plate 307 to quickly fix the filter cotton 303 to ensure stability.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high carbon steel stamping die for automobiles, characterized by: The invention comprises a stamping and forming mechanism (1), wherein the stamping and forming mechanism (1) comprises an upper stamping die (102), and the bottom of the upper stamping die (102) is provided with a pre-folding structure (104), a right-angle folding structure (105), a bending structure (106), and a shaping structure (107); The stamping and forming mechanism (1) is provided with a cooling mechanism (2), the cooling mechanism (2) comprising a cooling trough (201), a plurality of cooling nozzles (203) evenly distributed on the inner side of the cooling trough (201), a water receiving hose (204) provided on the top of the cooling trough (201), one end of the water receiving hose (204) being fixedly connected to a delivery pump (205), and the bottom of the delivery pump (205) being fixedly connected to a water extraction pipe (206); A circulation mechanism (3) is provided at the bottom of the stamping and forming mechanism (1), and the circulation mechanism (3) comprises a circulation pool, a filter plate (301) is provided on the inner side of the circulation pool, a filter core cotton (303) is provided at the bottom of the filter plate (301), and a side support filter plate (304) is provided on the side of the filter core cotton (303), and a limiting seat (305) is provided at the four corners of the inner side of the circulation pool, a limiting plate (307) is provided on the side of the limiting seat (305), and a limiting bolt (306) is provided on the top of the limiting plate (307), and the limiting bolt (306) is movably inserted into the inner side of the limiting seat (305).

2. The automotive high carbon steel stamping die according to claim 1, characterized in that: A top cover plate (101) is provided on the top of the upper punching die (102), and a lifting structure (108) is provided through the inner side of the upper punching die (102).

3. The automotive high carbon steel stamping die according to claim 2, characterized in that: A lower punching die (109) is provided at the bottom of the upper punching die (102), the bottom of the lifting structure (108) passes through the inner side of the lower punching die (109), and a bottom connection seat (110) is provided at the bottom of the lower punching die (109).

4. The automotive high carbon steel stamping die according to claim 3, characterized in that: A plurality of water flow holes (202) are evenly opened through the inner wall of the cooling groove (201), and the water flow holes (202) are connected to the interior of the cooling nozzle (203).

5. The automotive high carbon steel stamping die according to claim 4, characterized in that: The bottom of the water pumping pipe (206) is connected to a filter cartridge (207), and the filter cartridge (207) is arranged inside the circulation pool.

6. The automotive high carbon steel stamping die according to claim 5, characterized in that: A coolant pump (208) is provided on the top of the cooling tank (201), one end of the coolant pump (208) is fixedly connected to a straight pipe (209), and one end of the straight pipe (209) is fixedly connected to a cooling storage tank (212).

7. The automotive high carbon steel stamping die according to claim 6, characterized in that: One end of the cooling storage tank (212) is fixedly connected to a second curved pipe (211), one end of the second curved pipe (211) is fixedly connected to a connecting block (213), a cooling pipe (214) is connected to the connecting block (213), the cooling pipe (214) is distributed inside the cooling tank (201), the top of the connecting block (213) is connected to a first curved pipe (210), and one end of the first curved pipe (210) is connected to a coolant pump (208).

8. The automotive high carbon steel stamping die according to claim 7, characterized in that: Support seats (302) are provided at the four inner corners of the circulation pool, and the filter cotton (303) is provided between adjacent support seats (302).

9. A forming process for a high carbon steel stamping die for automobiles, characterized in that: The automotive high carbon steel stamping die according to claim 8 is used, comprising the following steps: S1. When stamping high carbon steel for automobiles, the high carbon steel material is placed between the upper stamping die (102) and the lower stamping die (109), and the chamfering structure (103), pre-folding structure (104), right-angle folding structure (105) and shaping structure (107) are distributed between the upper stamping die (102) and the lower stamping die (109). When stamping, the carbon steel material is first chamfered by the bending edge of the part through the chamfering structure (103) to avoid friction caused by bending, and then passed through the pre-folding structure (104). ) The part is pre-bent upward to avoid scratches on the bending edge later, and then the bending edge is folded upward through the right-angle folding structure (105), which is equivalent to forming, solving the problem of angle opening. At the same time, the bending structure (106) and the shaping structure (107) control the left and right sides and bottom of the part, and the front punch is used to press back to make the part's bending angle, fillet, and bending end face profile meet the size requirements. The lifting structure (108) provides lifting and adjustment during use, and the bottom seat (110) provides installation support. S2. During the stamping process, a cooling water source is connected to the interior of the cooling trough (201), a water hose (204) is connected to the cooling trough (201), and the water hose (204) is connected to the delivery pump (205). A water extraction pipe (206) is connected to the bottom of the delivery pump (205), and the water is filtered through the filter cartridge (207) and extracted. The water is then delivered through the delivery pump (205) and the water hose (204), so that the cooling liquid is fully input into the interior of the cooling trough (201), and is communicated with the interior of the cooling trough (201) through the water flow hole (202), so that the cooling liquid is sprayed out from the cooling nozzle (203), thereby facilitating the cooling spray on the upper stamping die (102), thereby achieving a high-efficiency cooling effect. S3. During the spraying process, the coolant pump (208) is connected to the cooling storage tank (212) through the straight pipe (209), and the coolant is subjected to low-temperature cooling treatment through the cooling storage tank (212). The coolant is connected to the second curved pipe (211) through the cooling storage tank (212), and is connected to the connecting block (213) through the second curved pipe (211). The cooling pipe (214) is distributed on the connecting block (213), thereby facilitating the refrigeration treatment of the coolant and achieving a further high-efficiency cooling effect to ensure a low-temperature effect. S4, after spraying, the water flows naturally into the interior of the circulation mechanism (3), and the inflowing water is subjected to primary coarse filtration by the filter plate (301). Then, when entering the interior of the circulation pool, it is further refined and filtered by the filter cotton (303). The filtered liquid is collected into the interior of the circulation pool through the side support filter plate (304), thereby achieving an effective energy-saving effect, reducing the use of coolant, and improving the effect of water resource conservation; S5. The filter plate (301) can be disassembled separately, which facilitates the separate replacement of the filter element cotton (303) after long-term filtering use. When replacing, the water extraction pipe (206) is manually loosened, so that the limiting plate (307) is retracted into the interior of the limiting seat (305), thereby facilitating the removal of the filter element cotton (303) for rapid replacement. At the same time, it is also convenient to use the limiting plate (307) to quickly fix the filter element cotton (303) to ensure stability.

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