Steel plate forming die

Abstract

The invention discloses a steel plate forming die which comprises a base die body, an overhead die lifting table and a dynamic pressure control assembly, and the overhead die lifting table is fixed to the top of the base die body; the dynamic pressure control assembly comprises a bottom mold base, a pressure applying spring and a triggering mechanism, the bottom mold base is slidably connected to the base mold body, and the bottom of the bottom mold base is elastically connected with the base mold body through the pressure applying spring; a direct-current motor is mounted at the top of the overhead mold lifting platform and drives a sliding auxiliary block through a lifting screw rod to drive a mold pressing plate to vertically move; the trigger mechanism is electrically connected with the direct current motor; an automatic closing mechanism is arranged at the top of the base mold body and comprises a clamping base and a clamping motor, and the clamping motor drives the mold pressing plate to be laterally closed through an auxiliary closing rod. Therefore, the closing pressure between the upper die and the lower die of the steel plate forming die can be effectively controlled, and the situation that the die cracks is effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of steel plate forming, and particularly relates to a steel plate forming die. Background Art

[0002] A steel plate is a flat steel product cast from molten steel and pressed after cooling. It has a rectangular shape and can be directly rolled or cut from a wide steel strip. It is usually rectangular and relatively long. When delivered in sheets, it is called a steel plate, and when delivered in coils, it is called a steel strip. According to different uses, steel plates can also be divided into various types, such as bridge steel plates, boiler steel plates, automobile manufacturing steel plates, etc. According to thickness, they can be divided into thin steel plates, thick steel plates, and extra-thick steel plates; according to the production and processing methods, they can be divided into hot-rolled steel plates and cold-rolled steel plates; according to the surface condition, they can be divided into flat steel plates and patterned steel plates, etc. At the same time, the surface of the steel plate can be treated, such as galvanized, tinned, etc., to increase its corrosion resistance and service life. A steel plate forming die is a tool used to shape steel materials into specific shapes and is widely used in industrial production. These dies are usually made of steel to ensure that they have sufficient strength and wear resistance to meet the requirements of industrial production.

[0003] In the related art, it is usually composed of upper and lower dies, and molten steel material is injected into the die for plastic shaping. Subsequently, after the molten steel cools, the liquid is shaped, and further, the steel material is shaped into a specific plate shape. However, when the common steel plate forming die is in use, since the die needs to be closed, when the pressure between the dies exceeds the limit of the die material, the die will crack, thus affecting the use of the die. Summary of the Invention

[0004] The present application aims to at least solve one of the technical problems in the related art to some extent.

[0005] For this reason, an object of the present application is to provide a steel plate forming die that can effectively control the closing pressure between the upper and lower dies of the steel plate forming die, thereby effectively reducing the occurrence of die cracking.

[0006] To achieve the above object, an embodiment of the first aspect of the present application provides a steel plate forming die, including a base die body, a top die lifting table, and a dynamic pressure control component. Among them, the top die lifting table is fixed on the top of the base die body; the dynamic pressure control component includes a bottom die base, a pressure spring, and a triggering mechanism. Among them, the bottom die base is slidably connected to the base die body, and its bottom is elastically connected to the base die body through the pressure spring; a DC motor is installed on the top of the top die lifting table, and the DC motor drives a sliding auxiliary block through a lifting screw rod to drive the die pressing plate to move vertically; the triggering mechanism is electrically connected to the DC motor; an automatic closing mechanism is arranged on the top of the base die body, and the automatic closing mechanism includes a clamping base and a clamping motor, and the clamping motor drives the die pressing plate to close laterally through an auxiliary closing rod.

[0007] The steel plate forming die of the embodiment of the present application can effectively control the closing pressure between the upper and lower dies of the steel plate forming die, thereby effectively reducing the occurrence of die cracking.

[0008] In addition, the steel plate forming die proposed above according to the present application may also have the following additional technical features:

[0009] In an embodiment of the present application, the dynamic pressure control component further includes an auxiliary sliding bottom block, and the bottom die base is slidably connected to the auxiliary sliding bottom block through a limit slide bar; the pressure spring is sleeved outside the limit slide bar and connects the bottom die base and the auxiliary sliding bottom block.

[0010] In an embodiment of the present application, the triggering mechanism includes a triggering abutting block and a triggering switch. The triggering abutting block is fixed to the bottom of the bottom die base, and the triggering switch is arranged in the base die body and is electrically connected to the DC motor; the triggering switch is arranged on the inner bottom wall of the auxiliary sliding bottom block, and when the triggering abutting block moves down with the bottom die base, the triggering switch cuts off the power supply of the DC motor.

[0011] In an embodiment of the present application, a die fixing frame is fixedly connected to the side of the sliding auxiliary block, and a top die frame is fixedly connected to the bottom of the die fixing frame; a second sliding T-shaped block is slidably connected to the inner surface wall of the top die frame, and a top die body is fixedly connected to the bottom of the second sliding T-shaped block; a fixing screw hole is opened at the top of the second sliding T-shaped block, and a fixing bolt is threadedly connected to the inner surface wall of the second sliding T-shaped block through the top die frame.

[0012] In an embodiment of the present application, a first sliding T-shaped block is slidably connected to the inner surface wall of the bottom die base, and a limit groove is opened on the outer surface wall of the first sliding T-shaped block;

[0013] The bottom die body is fixedly connected to the top of the first sliding T-shaped block.

[0014] In an embodiment of the present application, a limiting screw is threadedly connected to the inner wall of the bottom die base, and an adjusting knob is fixedly connected to one end of the limiting screw;

[0015] The other end of the limiting screw is rotatably connected to a sliding limiting block, and an auxiliary sliding rod is fixedly connected to the side surface of the sliding limiting block. The auxiliary sliding rod is slidably connected to the bottom die base.

[0016] In an embodiment of the present application, a supporting leg body is fixedly connected to the outer wall of the die workbench, and a servo motor is installed on the top of the supporting leg body;

[0017] The output end of the servo motor is fixedly connected to an auxiliary screw, and an external rod is threadedly connected to the outer wall of the auxiliary screw.

[0018] In an embodiment of the present application, a limiting slider is fixedly connected to the outer wall of the external rod, and the limiting slider is slidably connected to the inner wall of the supporting leg body.

[0019] In an embodiment of the present application, a telescopic leg is fixedly connected to the bottom of the external rod, and the telescopic leg is slidably connected to the inner wall of the supporting leg body.

[0020] In an embodiment of the present application, a bottom leg body is fixedly connected to the bottom of the telescopic leg, a pressure switch is installed on the outer wall of the bottom leg body, and the pressure switch is electrically connected to the servo motor.

[0021] Compared with the prior art, the beneficial effects of the present application are as follows:

[0022] 1. The steel plate forming die can utilize the limiting sliding rod and the pressing spring, so that after the bottom die base is compressed, it can drive the limiting sliding rod to slide inside the auxiliary sliding bottom block, and at the same time make the pressing spring compressed by force, thereby making the trigger abutting block synchronously descend and contact the trigger switch. Subsequently, after the trigger switch turns off the DC motor, the bottom die base no longer descends. Synchronously, the clamping motor is started to make the auxiliary closing rod rotate and then abut against the top of the die, thereby playing a role in assisting the die to close. At the same time, the compressed pressing spring can be reasonably utilized to apply appropriate pressure to the upper and lower dies, optimizing the die damage caused by excessive pressure between the dies.

[0023] 2. The steel plate forming die can utilize the top die body and the bottom die body that are separated up and down, so that the top die body and the bottom die body can change the die size specifications according to the different steel plate specifications to be produced. At the same time, fixed bolts are set and fixed on the fixed screw holes opened on the second sliding T-shaped block, thereby playing a role in assisting in fixing the top die body. At the same time, the limiting screw can be rotated so that the sliding limiting block can abut against both sides of the first sliding T-shaped block under the limitation of the auxiliary sliding rod, thereby playing a role in assisting in fixing the bottom die body.

[0024] 3. The steel plate forming die can utilize the pressure switch as a trigger structure. When a single bottom standing leg body of the die is suspended, the pressure switch no longer contacts the ground, so that the pressure switch is triggered. After the servo motor is started at this time, the auxiliary screw rotates, and further the external rod moves downward under the limitation of the limiting slider, so that the servo motor is timely turned off after the pressure switch contacts the ground, thereby solving the problem of the suspension of some structures of the die and improving the stability of the die.

[0025] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present application. Brief Description of the Drawings

[0026] The above-mentioned and / or additional aspects and advantages of the present application will become apparent and easy to understand from the following description of the embodiments in conjunction with the drawings, wherein:

[0027] Figure 1 is a schematic structural diagram of the overall steel plate forming die according to an embodiment of the present application;

[0028] Figure 2 is a schematic structural diagram of the base die body of the steel plate forming die according to an embodiment of the present application;

[0029] Figure 3 is a schematic structural diagram of the top die lifting platform of the steel plate forming die according to an embodiment of the present application;

[0030] Figure 4 is a schematic structural diagram of the bottom die body of the steel plate forming die according to an embodiment of the present application;

[0031] Figure 5 is a schematic structural diagram of the top die body of the steel plate forming die according to an embodiment of the present application;

[0032] Figure 6 is a schematic structural diagram of the die fixing frame of the steel plate forming die according to an embodiment of the present application;

[0033] Figure 7Schematic diagram of the first sliding T-shaped block of the steel plate forming die according to an embodiment of the present application;

[0034] Figure 8 Enlarged view of part A of the steel plate forming die according to an embodiment of the present application;

[0035] Figure 9 Enlarged view of part B of the steel plate forming die according to an embodiment of the present application.

[0036] As shown in the figure: 1. Base die body; 2. Die workbench; 3. Support leg body; 4. Servo motor; 5. Top die lifting table; 6. DC motor; 7. Top die frame; 8. Fixed bolt; 9. Bottom die base; 10. First sliding T-shaped block; 11. Bottom die body; 12. Limit slide bar; 13. Auxiliary sliding bottom block; 14. Pressing spring; 15. Auxiliary telescopic slider; 16. Trigger switch; 17. Trigger abutting block; 18. Lifting screw; 19. Top die body; 20. Second sliding T-shaped block; 21. External rod; 22. Limit slider; 23. Telescopic leg; 24. Bottom leg body; 25. Pressure switch; 26. Sliding auxiliary block; 27. Die fixing frame; 28. Clamping base; 29. Clamping motor; 30. Auxiliary closing rod; 31. Limit screw; 32. Sliding limit block; 33. Auxiliary slide bar; 34. Limit groove; 35. Fixed screw hole; 36. Adjusting knob; 37. Auxiliary screw. Detailed implementation mode

[0037] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and should not be construed as a limitation to the present application.

[0038] The steel plate forming die of the embodiment of the present application will be described below with reference to the accompanying drawings.

[0039] The steel plate forming die provided by the embodiment of the present application can be applied in the process of plastic forming of the steel plate die to assist in adjusting the closing pressure between the dies and optimize the problem of excessive pressure between the dies.

[0040] As Figures 1-9As shown in the figure, the steel plate forming die of the embodiment of the present application may include a base die body 1. A die workbench 2 is fixedly connected to the top of the base die body 1. An auxiliary sliding bottom block 13 is fixedly connected to the inner bottom wall of the base die body 1. A limiting sliding rod 12 is slidably connected to the inner surface wall of the auxiliary sliding bottom block 13. The top of the limiting sliding rod 12 is fixedly connected to a bottom die base 9. The bottom die base 9 is slidably connected to the die workbench 2. The bottom die base 9 is fixedly connected to a pressure spring 14 through the auxiliary sliding bottom block 13. The bottom die base 9 is fixedly connected to an auxiliary telescopic slider 15 through the auxiliary sliding bottom block 13. A trigger abutting block 17 is fixedly connected to the bottom of the bottom die base 9. A trigger switch 16 is installed on the inner bottom wall of the auxiliary sliding bottom block 13. A clamping base 28 is fixedly connected to the top of the die workbench 2. A clamping motor 29 is installed on the side of the clamping base 28. The output end of the clamping motor 29 is fixedly connected to an auxiliary closing rod 30. A top die lifting platform 5 is fixedly connected to the top of the die workbench 2. A DC motor 6 is installed on the top of the top die lifting platform 5. The output end of the DC motor 6 is fixedly connected to a lifting screw rod 18. A sliding auxiliary block 26 is threadedly connected to the outer surface wall of the lifting screw rod 18. The sliding auxiliary block 26 is slidably connected to the inner surface wall of the top die lifting platform 5. The trigger switch 16 is electrically connected to the DC motor 6.

[0041] Specifically, during the closing process of the die, the DC motor 6 drives the lifting screw rod 18 to rotate, so that the sliding auxiliary block 26 moves downward under the limitation of the top die lifting platform 5, thereby providing pressure for the closing of the die. Then, the excessive pressure will squeeze the bottom die base 9 to descend, so that the limiting sliding rod 12 can slide on the top of the auxiliary sliding bottom block 13. Further, the auxiliary telescopic slider 15 can play a role of telescopic limitation. During this process, the pressure spring 14 will be compressed synchronously until the trigger abutting block 17 continuously descends and contacts the trigger switch 16. Then, the trigger switch 16 starts to turn off the DC motor 6. At this time, the sliding auxiliary block 26 no longer descends. At the same time, the pressure spring 14 can provide appropriate pressure between the dies. At the same time, after the trigger switch 16 is started, the dies have been closed, and the clamping motor 29 can be started to rotate the auxiliary closing rod 30 for further auxiliary limitation.

[0042] In an embodiment of the present application, as Figure 5 shown, a die fixing frame 27 is fixedly connected to the side of the sliding auxiliary block 26. A top die frame 7 is fixedly connected to the bottom of the die fixing frame 27. A second sliding T-shaped block 20 is slidably connected to the inner surface wall of the top die frame 7. A top die body 19 is fixedly connected to the bottom of the second sliding T-shaped block 20. A fixing screw hole 35 is opened at the top of the second sliding T-shaped block 20. A fixing bolt 8 is threadedly connected to the inner surface wall of the second sliding T-shaped block 20 through the top die frame 7.

[0043] Specifically, the downward movement of the sliding auxiliary block 26 can drive the overall downward movement of the overhead die body 19 through the assistance of the die fixing frame 27, thereby realizing the closing of the die. At the same time, by removing the fixing bolts 8, the fixing bolts 8 can be separated from the fixing screw holes 35, and then the second sliding T-shaped block 20 can be separated from the overhead die frame 7, thereby realizing the function of disassembling and replacing the overhead die body 19.

[0044] In an embodiment of the present application, as Figure 6 , Figure 7 and Figure 9 shown, a first sliding T-shaped block 10 is slidably connected to the inner surface wall of the bottom die base 9. A limiting groove 34 is formed on the outer surface wall of the first sliding T-shaped block 10. A bottom die body 11 is fixedly connected to the top of the first sliding T-shaped block 10. A limiting screw rod 31 is threadedly connected to the inner surface wall of the bottom die base 9. One end of the limiting screw rod 31 is fixedly connected to an adjusting knob 36. The other end of the limiting screw rod 31 is rotatably connected to a sliding limiting block 32. A supporting sliding rod 33 is fixedly connected to the side surface of the sliding limiting block 32. The supporting sliding rod 33 is slidably connected to the bottom die base 9.

[0045] Specifically, by rotating the adjusting knob 36, the limiting screw rod 31 rotates inside the bottom die base 9. And because the limiting screw rod 31 is threadedly connected to the bottom die base 9, the limiting screw rod 31 will move inside the bottom die base 9. At the same time, because the limiting screw rod 31 is rotatably connected to the sliding limiting block 32, the sliding limiting block 32 can move parallelly inside the bottom die base 9 under the limitation of the supporting sliding rod 33. Then, when the sliding limiting block 32 no longer abuts against both sides of the first sliding T-shaped block 10, the first sliding T-shaped block 10 can be separated from the bottom die base 9.

[0046] In an embodiment of the present application, as Figure 3 shown, a supporting leg main body 3 is fixedly connected to the outer surface wall of the die workbench 2. A servo motor 4 is installed on the top of the supporting leg main body 3. The output end of the servo motor 4 is fixedly connected to an auxiliary screw rod 37. An external rod 21 is threadedly connected to the outer surface wall of the auxiliary screw rod 37. A limiting slider 22 is fixedly connected to the outer surface wall of the external rod 21. The limiting slider 22 is slidably connected to the inner surface wall of the supporting leg main body 3. The bottom of the external rod 21 is fixedly connected to a telescopic leg 23. The telescopic leg 23 is slidably connected to the inner surface wall of the supporting leg main body 3. The bottom of the telescopic leg 23 is fixedly connected to a bottom leg main body 24. A pressure switch 25 is installed on the outer surface wall of the bottom leg main body 24. The pressure switch 25 is electrically connected to the servo motor 4.

[0047] Specifically, after the mold is placed on the ground, if a single bottom-mounted leg body 24 is suspended due to unevenness of the ground, the pressure switch 25 will be triggered, which in turn causes the pressure switch 25 to start the servo motor 4 to rotate the auxiliary screw 37. At the same time, because the auxiliary screw 37 is threadedly connected to the external rod 21, and the external rod 21 is limited to slide by the limit slider 22, the external rod 21 will drive the telescopic leg 23 to move downward until the bottom-mounted leg body 24 and the pressure switch 25 on the telescopic leg 23 contact the ground. At this time, the pressure switch 25 triggers to turn off the servo motor 4.

[0048] Specifically, for the steel plate forming die according to the embodiment of the present application, during the closing process of the die, the DC motor 6 drives the lifting screw rod 18 to rotate, causing the sliding auxiliary block 26 to move downward under the limit of the top die lifting table 5, thereby providing pressure for the closing of the die. Furthermore, the excessive pressure will squeeze the bottom die base 9 to descend, enabling the limit slide rod 12 to slide on the top of the auxiliary sliding bottom block 13. Further, the auxiliary telescopic slider 15 can play a role in telescopic limiting. During this process, the pressure spring 14 will be synchronously compressed until the abutting block 17 continuously descends and contacts the trigger switch 16. Then, the trigger switch 16 starts to turn off the DC motor 6. At this time, the sliding auxiliary block 26 no longer descends. At the same time, the pressure spring 14 can provide appropriate pressure between the dies. Also, after the trigger switch 16 is activated and the dies are already closed, the clamping motor 29 can be started to rotate the auxiliary closing rod 30 for further auxiliary limiting. The descent of the sliding auxiliary block 26 can drive the overall descent of the top die main body 19 through the auxiliary of the die fixing frame 27, thereby realizing the closing of the die. At the same time, by removing the fixing bolt 8, the fixing bolt 8 can be disengaged from the fixing screw hole 35, and then the second sliding T-shaped block 20 can be disengaged from the top die frame 7, thereby realizing the function of disassembling and replacing the top die main body 19. By rotating the adjustment knob 36, the limit screw rod 31 rotates within the bottom die base 9. And because the limit screw rod 31 is threadedly connected to the bottom die base 9, the limit screw rod 31 will move inside the bottom die base 9. At the same time, because the limit screw rod 31 is rotationally connected to the sliding limit block 32, the sliding limit block 32 can move parallelly inside the bottom die base 9 under the limit of the auxiliary slide rod 33. Then, when the sliding limit block 32 no longer abuts against both sides of the first sliding T-shaped block 10, the first sliding T-shaped block 10 can be separated from the bottom die base 9. After the die is placed on the ground, if a single bottom standing leg main body 24 is suspended due to uneven ground, the pressure switch 25 will be triggered, causing the pressure switch 25 to start the servo motor 4 to rotate the auxiliary screw rod 37. At the same time, because the auxiliary screw rod 37 is threadedly connected to the external rod 21 and the external rod 21 is limited to slide by the limit slider 22, the external rod 21 will drive the telescopic standing leg 23 to move downward until the bottom standing leg main body 24 and the pressure switch 25 on the telescopic standing leg 23 contact the ground. At this time, the pressure switch 25 triggers to turn off the servo motor 4.

[0049] Specifically, the overall working process of the present application is as follows:

[0050] Preparation for die closing: Place the steel plate to be processed between the bottom die main body 11 and the top die main body 19, start the DC motor 6 to drive the lifting screw rod 18 to rotate, and the sliding auxiliary block 26 descends along the inner surface of the top die lifting table 5, pressing the top die main body 19 against the bottom die main body 11 through the die fixing frame 27.

[0051] Dynamic pressure control: When the pressure exceeds the threshold value, the bottom die base 9 is pressed down, the limit slide bar 12 slides within the auxiliary sliding bottom block 13, the pressure spring 14 compresses and stores energy, the trigger abutting block 17 at the bottom of the bottom die base 9 contacts the trigger switch 16 within the auxiliary sliding bottom block 13, the trigger switch 16 cuts off the power supply of the DC motor 6, stops the die from pressing down, the pressure spring 14 releases the elastic force, maintains a constant pressure between the dies, and avoids overload damage.

[0052] Automatic closing assistance: The trigger switch 16 synchronously activates the clamping motor 29, driving the auxiliary closing rod 30 to rotate to the positioning groove on the side of the die pressing plate, forming a lateral limit to prevent the die from being misaligned.

[0053] Steel plate forming process: The die completes the plastic deformation of the steel plate under dynamic pressure and lateral limit. After the processing is completed, the DC motor 6 rotates in reverse to lift the top die body 19, and the clamping motor 29 resets the auxiliary closing rod 30.

[0054] Die replacement: Remove the fixing bolts 8, pull out the second sliding T-shaped block 20 from the top die holder 7, replace the top die body 19 with different specifications, rotate the adjustment knob 36 to drive the limit screw 31, make the sliding limit block 32 disengage from the first sliding T-shaped block 10, and remove the bottom die body 11 for replacement.

[0055] Base horizontal adjustment: If the bottom vertical foot body 24 is suspended, the pressure switch 25 triggers the servo motor 4 to drive the auxiliary screw 37 to rotate, the external rod 21 guides and descends through the limit slider 22, driving the telescopic vertical foot 23 to contact the ground, realizing automatic leveling of the base.

[0056] In summary, it can effectively control the closing pressure between the upper and lower dies of the steel plate forming die, thereby effectively reducing the occurrence of die cracking.

[0057] In the description of this specification, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0059] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A steel plate forming die, characterized in that, It includes a base mold body, an overhead mold lifting table, and a dynamic pressure control component. Among them, the overhead mold lifting table is fixed to the top of the base mold body; the dynamic pressure control component includes a bottom mold base, a pressure spring, and a trigger mechanism. Among them, the bottom mold base is slidably connected to the base mold body, and its bottom is elastically connected to the base mold body through the pressure spring; a DC motor is installed on the top of the overhead mold lifting table, and the DC motor drives a sliding auxiliary block through a lifting screw rod to drive the mold pressing plate to move vertically; the trigger mechanism is electrically connected to the DC motor; an automatic closing mechanism is arranged on the top of the base mold body. The automatic closing mechanism includes a clamping base and a clamping motor. The clamping motor drives the mold pressing plate to close laterally through an auxiliary closing rod.

2. The steel plate forming die according to claim 1, characterized in that, the dynamic pressure control component further includes an auxiliary sliding bottom block, and the bottom mold base is slidably connected to the auxiliary sliding bottom block through a limit slide rod; the pressure spring is sleeved outside the limit slide rod and connects the bottom mold base and the auxiliary sliding bottom block.

3. The steel plate forming die according to claim 1, characterized in that, the trigger mechanism includes a trigger abutting block and a trigger switch. The trigger abutting block is fixed to the bottom of the bottom mold base, and the trigger switch is arranged in the base mold body and is electrically connected to the DC motor; the trigger switch is arranged on the inner bottom wall of the auxiliary sliding bottom block, and when the trigger abutting block moves downward with the bottom mold base, the trigger switch cuts off the power supply of the DC motor.

4. The steel plate forming die according to claim 1, wherein, a mold fixing frame is fixedly connected to the side of the sliding auxiliary block, and an overhead mold frame is fixedly connected to the bottom of the mold fixing frame; a second sliding T-shaped block is slidably connected to the inner surface wall of the overhead mold frame, and a top mold body is fixedly connected to the bottom of the second sliding T-shaped block; a fixing screw hole is opened at the top of the second sliding T-shaped block, and a fixing bolt is threadedly connected to the inner surface wall of the second sliding T-shaped block through the overhead mold frame.

5. The steel plate forming die according to claim 1, characterized in that, a first sliding T-shaped block is slidably connected to the inner surface wall of the bottom mold base, and a limit groove is opened on the outer surface wall of the first sliding T-shaped block; a bottom mold body is fixedly connected to the top of the first sliding T-shaped block.

6. The steel plate forming die according to claim 1, characterized in that, a limit screw rod is threadedly connected to the inner surface wall of the bottom mold base, and an adjusting knob is fixedly connected to one end of the limit screw rod; the other end of the limit screw rod is rotatably connected to a sliding limit block, and an auxiliary slide rod is fixedly connected to the side of the sliding limit block. The auxiliary slide rod is slidably connected to the bottom mold base.

7. The steel plate forming die according to claim 1, characterized in that, a support leg body is fixedly connected to the outer surface wall of the mold workbench, and a servo motor is installed on the top of the support leg body; an output end of the servo motor is fixedly connected to an auxiliary screw rod, and an external rod is threadedly connected to the outer surface wall of the auxiliary screw rod.

8. The steel plate forming die according to claim 7, characterized in that a limit slider is fixedly connected to the outer surface wall of the external rod, and the limit slider is slidably connected to the inner surface wall of the support leg body.

9. The steel plate forming die according to claim 8, characterized in that, a telescopic leg is fixedly connected to the bottom of the external rod, and the telescopic leg is slidably connected to the inner surface wall of the support leg body.

10. The steel plate forming die according to claim 9, characterized in that, a bottom leg body is fixedly connected to the bottom of the telescopic leg, and a pressure switch is installed on the outer surface wall of the bottom leg body. The pressure switch is electrically connected to the servo motor.

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