Cooling device for stamping die of automobile stamping part

Abstract

The utility model relates to the technical field of automobile stamping part stamping dies, in particular to an automobile stamping part stamping die cooling device which comprises an upper die and a lower die, a male die is fixedly connected in the upper die, a punching die is fixedly connected in the lower die, the male die corresponds to the punching die, and a stamping part is arranged between the male die and the punching die. In the stamping process, the upper die and the lower die are matched with each other to conduct stamping action, the male die and the punching die conduct forming and punching machining on a stamping part, meanwhile, the cooling water pipes I are fixedly connected to the upper die, and the cooling water pipes II are fixedly connected to the lower die. A first cooling water pipe, a second cooling water pipe and a third cooling water pipe respectively cool the upper die, the male die and the punching die to reduce the temperature of the dies, a first atomization spray head and a second atomization spray head respectively spray cooling liquid to the surfaces of the upper die and the lower die before punching, the cooling and lubricating effects are further enhanced, the temperature of the dies is lower than that of punched parts, and the punching efficiency is improved. The stamping part is quenched through the temperature difference, and the performance of the stamping part is improved.

Description

Technical Field

[0001] This utility model relates to a stamping die for automotive stamping parts, and more particularly to a cooling device for a stamping die for automotive stamping parts, belonging to the technical field of stamping dies for automotive stamping parts. Background Technology

[0002] In the automotive industry, the quality and production efficiency of stamped parts are crucial to the performance and cost control of the entire vehicle. However, during the stamping process of automotive stamped parts, the molds generate a lot of heat due to continuous high-intensity operation.

[0003] On the one hand, if the mold temperature is too high and cannot be effectively controlled, it will not only affect the mold's own precision and lifespan, increasing maintenance and replacement costs, but may also lead to quality problems such as dimensional deviations and surface defects in the stamped parts, failing to meet the high precision requirements of automobile production. Traditional automotive stamping part stamping die cooling devices often suffer from uneven cooling and low efficiency.

[0004] Therefore, it is urgent to improve the cooling device of automotive stamping die to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a cooling device for stamping dies of automotive stamping parts. During the stamping process, the upper and lower dies cooperate to perform stamping actions, while the punch and cutting die form and cut the stamped parts. At the same time, cooling water pipe one, cooling water pipe two, and cooling water pipe three provide cooling for the upper die, punch, and cutting die, respectively, reducing the temperature of the die. Atomizing nozzle one and atomizing nozzle two spray coolant onto the surfaces of the upper and lower dies before stamping, further enhancing the cooling and lubrication effects, so that the die temperature is lower than that of the stamped parts. The temperature difference is used to perform a quenching process on the stamped parts, improving their performance.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] A cooling device for a stamping die for automotive stamping parts includes an upper die and a lower die. A punch is fixedly connected inside the upper die, and a cutting die is fixedly connected inside the lower die. The punch and the cutting die correspond to each other, and a stamping part is provided between the punch and the cutting die. Multiple cooling water pipes are fixedly connected inside the upper die near the punch, multiple cooling water pipes are fixedly connected inside the punch, and multiple cooling water pipes are fixedly connected inside the cutting die. Multiple atomizing nozzles are fixedly connected to the side of the upper die near the lower die, with the output end of the atomizing nozzles aligned with the upper surface of the lower die. Multiple atomizing nozzles are fixedly connected to the side of the lower die near the upper die, with the output end of the atomizing nozzles aligned with the inner bottom surface of the upper die.

[0008] Preferably, the first and second cooling water pipes are U-shaped, the first cooling water pipes are evenly distributed above the stamped part, the second cooling water pipes are located at the center of the stamped part, and the third cooling water pipe is U-shaped and located directly below the stamped part.

[0009] Preferably, a temperature sensor is fixedly connected to the outer wall of the inlet end of the first cooling water pipe, and a temperature sensor is fixedly connected to the outer wall of the inlet end of the second and third cooling water pipes. Both the first and second temperature sensors are close to the side of the stamped part.

[0010] Preferably, a throttle valve is fixedly connected to one end of each of the cooling water pipes one near the temperature sensor one, and a throttle valve is fixedly connected to one end of each of the cooling water pipes two and three near the temperature sensor two.

[0011] Preferably, the upper mold has a sliding groove 1 inside, and a detection column is slidably connected inside the sliding groove 1. The lower mold has a groove corresponding to the detection column inside. The upper mold has a sliding groove 2 on the side near the detection column, and an abutment rod is slidably connected inside the sliding groove 2. A collision sensor is fixedly connected on the side of the upper mold near the abutment rod, and the collision sensor corresponds to the abutment rod.

[0012] Preferably, an abutment spring is provided between the inner top surface of the sliding groove and one end of the detection column.

[0013] Preferably, an abutment spring is provided between the inner wall of one side of the sliding groove and the abutment rod.

[0014] Preferably, a guide post is fixedly connected to the side of the upper mold near the lower mold, and abutment blocks are fixedly connected to the four corners of the side of the upper mold near the lower mold.

[0015] This utility model has at least the following beneficial effects:

[0016] 1. During the stamping process, the upper and lower dies cooperate to perform stamping actions, while the punch and cutting die shape and cut the stamped parts. At the same time, cooling water pipes one, two, and three provide cooling for the upper die, punch, and cutting die, respectively, to reduce the temperature of the die. Atomizing nozzles one and two spray coolant onto the surfaces of the upper and lower dies before stamping to further enhance the cooling and lubrication effect, making the die temperature lower than that of the stamped parts. The temperature difference is used to perform a quenching process on the stamped parts, improving their performance.

[0017] 2. Temperature sensors one and two monitor the temperature of their respective areas in real time and feed the temperature data back to the control system. When the temperature is too high, the control system will increase the opening of throttle valves one and two to increase the flow rate of the cooling medium and enhance the cooling effect; when the temperature is too low, the control system will decrease the opening of the throttle valves to reduce the flow rate of the cooling medium and avoid over-cooling. In this way, the throttle valves and temperature sensors work together to adjust the cooling effect in real time according to the temperature, keeping the mold and stamped parts within a suitable temperature range, improving stamping quality and mold life. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 Three-dimensional illustration provided for this utility model Figure 1 ;

[0020] Figure 2 A cross-sectional schematic diagram provided for this utility model;

[0021] Figure 3 Provided by this utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle;

[0022] Figure 4 Three-dimensional illustration provided for this utility model Figure 2 ;

[0023] Figure 5 Provided by this utility model Figure 4 A magnified schematic diagram of the structure at point B in the middle;

[0024] Figure 6 Provided by this utility model Figure 4 A magnified schematic diagram of the structure at point C.

[0025] In the diagram, 1. Upper die; 2. Lower die; 3. Punch; 4. Punching die; 5. Stamped part; 6. Cooling water pipe one; 7. Cooling water pipe two; 8. Cooling water pipe three; 9. Atomizing nozzle one; 10. Atomizing nozzle two; 31. Temperature sensor one; 32. Temperature sensor two; 41. Throttling valve one; 42. Throttling valve two; 51. Sliding groove one; 52. Detection column; 53. Groove; 54. Sliding groove two; 55. Abutment rod; 56. Collision sensor; 61. Abutment spring one; 62. Abutment spring two; 71. Guide post; 72. Abutment block. Detailed Implementation

[0026] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0027] like Figures 1-6 As shown, the automotive stamping part stamping die cooling device provided in this embodiment includes an upper die 1 and a lower die 2. The upper die 1, as part of the die, cooperates with the lower die 2 to complete the stamping action. A punch 3 is fixedly connected inside the upper die 1, and a cutting die 4 is fixedly connected inside the lower die 2. The punch 3 and the cutting die 4 correspond to each other, and a stamping part 5 is provided between the punch 3 and the cutting die 4. The punch 3 directly acts on the stamping part 5 to achieve stamping forming. The cutting die 4 cooperates with the punch 3 to perform cutting processing on the stamping part 5. The stamping part 5 is the object of processing. The die 1 is formed by stamping under the action of die 3 and punching die 4. Multiple cooling water pipes 6 are fixedly connected inside the upper die 1 near the punch 3. There are three sets of cooling water pipes 6. The cooling water pipes 6 provide cooling for the upper die 1, preventing it from deforming or being damaged due to high temperature during stamping, thus affecting stamping accuracy and die life. Cooling water pipes 7 are fixedly connected inside the punch 3, cooling the punch 3 and ensuring its temperature stability during operation. Cooling water pipes 8 are fixedly connected inside the punching die 4. Cooling ensures stable temperature during operation, contributing to improved stamping quality and mold life. Six atomizing nozzles (1-9) are fixedly connected to the side of the upper mold 1 closest to the lower mold 2, evenly distributed on both sides of the upper mold 1. The output ends of the atomizing nozzles (1-9) are aligned with the upper surface of the lower mold 2, atomizing the coolant and spraying it onto the upper surface of the lower mold 2 to cool and lubricate it, reducing friction and heat accumulation. Multiple atomizing nozzles (2-10) are fixedly connected to the side of the lower mold 2 closest to the upper mold 1. There are six nozzles 0, evenly distributed on both sides of the lower mold 2. The output end of the atomizing nozzle 2 10 is aligned with the inner bottom surface of the upper mold 1. The atomizing nozzle 2 10 atomizes the coolant and sprays it onto the inner bottom surface of the upper mold 1 for further cooling and lubrication. The mold is cooled by cooling water pipe 1 6, cooling water pipe 2 7, and cooling water pipe 3 8, so that the temperature of the mold is lower than the temperature of the stamped part 5. The temperature difference is used to perform the corresponding quenching process on the stamped part 5. The atomizing nozzle 1 9 and atomizing nozzle 2 10 are used to improve the quenching effect of the stamped part 5.

[0028] Among them, such as Figures 1-6As shown, multiple cooling water pipes 1 and 2 are U-shaped. Cooling water pipe 1 is evenly distributed above the stamping part 5. The U-shaped cooling water pipe 1 can provide comprehensive and uniform cooling to the upper die 1 and the area above the stamping part 5, avoiding local overheating that could affect stamping accuracy and die life. Cooling water pipe 2 is located at the center of the stamping part 5. The U-shaped cooling water pipe 2 at the center of the stamping part 5 can efficiently cool the key part at the center of the stamping part 5 and the corresponding position of the punch 3, because heat often concentrates in the center during the stamping process. Cooling water pipe 3 is U-shaped and located directly below the stamping part 5. The U-shaped cooling water pipe 3 cools the lower die 2 and the area below the stamping part 5. Together with the cooling water pipes above, it achieves all-round cooling of the stamping part 5.

[0029] Furthermore, such as Figures 1-6 As shown, a temperature sensor 31 is fixedly connected to the outer wall of the inlet end of cooling water pipe 6. The temperature sensor 31 is fixed to the outer wall of the inlet end of cooling water pipe 6, close to the side of the stamping part 5, and is used to monitor the temperature of the area near cooling water pipe 6 in real time, including the temperature of the upper mold 1 and the area above the stamping part 5. A temperature sensor 32 is fixedly connected to the outer wall of the inlet end of cooling water pipe 7 and cooling water pipe 8. Both temperature sensor 31 and temperature sensor 32 are close to the side of the stamping part 5. Temperature sensor 32 is fixed to the outer wall of the inlet end of cooling water pipe 7 and cooling water pipe 8, close to the side of the stamping part 5, and is used to monitor the temperature of the area near cooling water pipe 7 and cooling water pipe 8 in real time, that is, the temperature of the center and bottom of the stamping part 5 and the lower mold 2.

[0030] Furthermore, such as Figures 1-6 As shown, multiple cooling water pipes 6 are fixedly connected to a throttle valve 41 at one end near the temperature sensor 31. The throttle valve 41 is fixedly connected to the end of the cooling water pipe 6 near the temperature sensor 31, and its function is to regulate the flow rate of the cooling medium in the cooling water pipe 6. By controlling the flow rate, the cooling effect on the upper mold 1 and the area above the stamped part 5 can be adjusted. Cooling water pipes 7 and 8 are fixedly connected to a throttle valve 42 at one end near the temperature sensor 32. The throttle valve 42 is connected to the end of cooling water pipes 7 and 8 near the temperature sensor 32 and is used to control the flow rate of the cooling medium in these two cooling water pipes, thereby adjusting the cooling degree of the center and bottom of the stamped part 5 and the lower mold 2.

[0031] Among them, such as Figures 1-6As shown, the upper mold 1 has a sliding groove 51 inside, and a detection post 52 is slidably connected inside the sliding groove 51. The lower mold 2 has a groove 53 corresponding to the detection post 52 inside. The upper mold 1 has a sliding groove 54 on the side near the detection post 52. The detection post 52 slides in the sliding groove 51. When the upper mold 1 and the lower mold 2 are closed, the detection post 52 is inserted into the groove 53 of the lower mold 2 to detect whether the closing position of the upper mold 1 and the lower mold 2 is accurate, ensuring stamping accuracy. At the same time, when When the stamped part 5 is misplaced, the contact between the detection post 52 and the stamped part 5 prevents the mold from closing, thus protecting the mold. An abutment rod 55 is slidably connected inside the sliding groove 2 54. A collision sensor 56 is fixedly connected to the side of the upper mold 1 near the abutment rod 55. The collision sensor 56 corresponds to the abutment rod 55, which slides within the sliding groove 2 54. When there is an abnormal collision between the upper mold 1 and the lower mold 2, the abutment rod 55 will move and touch the collision sensor 56. The collision sensor 56 detects the collision of the abutment rod 55, thereby issuing a signal for alarm and power-off control of the equipment to protect the mold and equipment from damage.

[0032] Furthermore, such as Figures 1-6 As shown, a stop spring 61 is provided between the inner top surface of the sliding groove 51 and one end of the detection post 52. The stop spring 61 is located between the inner top surface of the sliding groove 51 and one end of the detection post 52. Its function is to provide a certain elastic pressure to the detection post 52, ensuring that the detection post 52 can be stably inserted into the groove 53 of the lower mold 2, and to play a buffering role during the mold closing process, reducing the impact damage to the detection post 52. When the mold is closed, if the detection post 52 is obstructed, the stop spring 61 can also provide a certain amount of expansion and contraction margin to prevent the detection post 52 from being rigidly stuck. A stop spring 62 is provided between one side inner wall of the sliding groove 54 and the stop rod 55. The stop spring 62 is located between one side inner wall of the sliding groove 54 and the stop rod 55. Its main function is to keep the stop rod 55 in its initial position under normal conditions. When subjected to abnormal pressure, it can compress the spring and move. At the same time, after abnormal collision or pressure relief, the stop spring 62 can help the stop rod 55 return to its original position.

[0033] Among them, such as Figures 1-6 As shown, a guide post 71 is fixedly connected to the side of the upper mold 1 near the lower mold 2. The main function of the guide post 71 is to guide and position the mold during mold closing, ensuring that the upper mold 1 and the lower mold 2 can be accurately aligned, thereby ensuring the stamping accuracy and quality. Furthermore, abutment blocks 72 are fixedly connected to the four corners of the side of the upper mold 1 near the lower mold 2. The abutment blocks 72 are distributed at the four corners of the side of the upper mold 1 near the lower mold 2. Their function is to limit the closing distance of the upper mold 1 and the lower mold 2 during mold closing, preventing excessive closing and damage to the mold. At the same time, they also play a certain buffering role, reducing the impact force during mold closing.

[0034] like Figures 1-6 As shown, the principle of the automotive stamping die cooling device provided in this embodiment is as follows: When the upper die 1 and lower die 2 begin to close, the cooling system starts working. Cooling water pipes 6, 7, and 8 simultaneously provide cooling for the upper die 1, punch 3, and cutting die 4. Atomizing nozzles 9 and 2 spray coolant onto the surfaces of the upper and lower dies 2 for cooling and lubrication. Guide pillar 71 guides the upper die 1 and lower die 2 to precisely align, ensuring accurate die closing position. During die closing, detection pillar 52 slides within sliding groove 51 and inserts into the groove 53 of the lower die 2 to detect whether the die closing position is correct. The punch 3 and cutting die 4 perform stamping processing on the stamped part 5. Temperature sensors 31 and 32 monitor the temperature at the inlet of the cooling water pipe in real time. If temperature sensor 31 detects a cooling... If the temperature near water pipe 6 is too high, throttle valve 41 increases its opening to increase the flow of cooling medium and enhance cooling; conversely, it decreases its opening. Similarly, temperature sensor 32 controls throttle valve 42 connected to cooling water pipes 7 and 8 to adjust the cooling effect. During the stamping process, if the stamped part 5 is mispositioned or abnormal, causing the detection column 52 to collide with the stamped part 5, the detection column 52 slides inside sliding groove 51, pushing the abutment rod 55 on one side to slide inside sliding groove 54 and touch the collision sensor 56. The collision sensor 56 triggers an alarm and the control equipment to cut off power, stopping the stamping operation. After stamping is completed, the upper mold 1 and lower mold 2 open, the abutment spring 61 resets the detection column 52, and the abutment spring 62 resets the abutment rod 55, preparing for the next stamping.

[0035] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0036] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0037] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A cooling device for stamping dies of automotive stamping parts, comprising an upper die (1) and a lower die (2), characterized in that: The upper mold (1) is fixedly connected to a punch (3), the lower mold (2) is fixedly connected to a punching die (4), the punch (3) and the punching die (4) correspond to each other, and a stamping part (5) is provided between the punch (3) and the punching die (4). The upper mold (1) is fixedly connected to a plurality of cooling water pipes (6) near the punch (3), the punch (3) is fixedly connected to a second cooling water pipe (7), the punching die (4) is fixedly connected to a third cooling water pipe (8), the upper mold (1) is fixedly connected to a plurality of atomizing nozzles (9) on the side near the lower mold (2), the output end of the atomizing nozzles (9) is aligned with the upper surface of the lower mold (2), the lower mold (2) is fixedly connected to a plurality of atomizing nozzles (10) on the side near the upper mold (1), and the output end of the atomizing nozzles (10) is aligned with the inner bottom surface of the upper mold (1).

2. The cooling device for stamping dies of automotive stamping parts according to claim 1, characterized in that: The first (6) and the second (7) of the cooling water pipes are U-shaped. The first (6) of the cooling water pipes are evenly distributed above the stamped part (5). The second (7) of the cooling water pipes is located at the center of the stamped part (5). The third (8) of the cooling water pipes is U-shaped and is located directly below the stamped part (5).

3. The cooling device for stamping dies of automotive stamping parts according to claim 1, characterized in that: Temperature sensor 1 (31) is fixedly connected to the outer wall of the water inlet end of cooling water pipe 1 (6), and temperature sensor 2 (32) is fixedly connected to the outer wall of the water inlet end of cooling water pipe 2 (7) and cooling water pipe 3 (8). Temperature sensor 1 (31) and temperature sensor 2 (32) are both close to one side of the stamping part (5).

4. A cooling device for stamping dies of automotive stamping parts according to claim 3, characterized in that: One of the cooling water pipes (6) is fixedly connected to a throttle valve (41) at one end near the temperature sensor (31), and the second cooling water pipe (7) and the third cooling water pipe (8) are fixedly connected to a throttle valve (42) at one end near the temperature sensor (32).

5. A cooling device for stamping dies of automotive stamping parts according to claim 1, characterized in that: The upper mold (1) has a sliding groove (51) inside, and a detection post (52) is slidably connected inside the sliding groove (51). The lower mold (2) has a groove (53) corresponding to the detection post (52) inside. The upper mold (1) has a sliding groove (54) on the side near the detection post (52), and an abutment rod (55) is slidably connected inside the sliding groove (54). A collision sensor (56) is fixedly connected on the side of the upper mold (1) near the abutment rod (55), and the collision sensor (56) corresponds to the abutment rod (55).

6. A cooling device for stamping dies of automotive stamping parts according to claim 5, characterized in that: An abutment spring (61) is provided between the inner top surface of the sliding groove (51) and one end of the detection column (52).

7. A cooling device for stamping dies of automotive stamping parts according to claim 5, characterized in that: An abutment spring (62) is provided between the inner wall of one side of the sliding groove (54) and the abutment rod (55).

8. A cooling device for stamping dies of automotive stamping parts according to claim 1, characterized in that: A guide post (71) is fixedly connected to the side of the upper mold (1) near the lower mold (2), and abutment blocks (72) are fixedly connected to the four corners of the side of the upper mold (1) near the lower mold (2).

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