Forming die for automobile part machining

Abstract

The invention belongs to the technical field of automobile part machining, and particularly relates to a forming die for automobile part machining, which comprises a base, a heating box, a control valve, a preheating type die storage mechanism, a cold pressing type sealing mechanism and a gradient type shaping mechanism, the heating box is arranged on the upper wall of the base, and the upper end of the heating box is open; the control valve is arranged on the side wall of the top of the heating box in a communicating mode, and the preheating type mold storage mechanism comprises a preheating mechanism and a pushing mechanism. According to the forming mold for automobile part machining, a casting mold can be preheated, the temperature difference between molten metal and the mold is reduced, impurities contained in the molten metal can be removed, and the casting quality is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive parts processing, and specifically refers to a forming mold for automotive parts processing. Background Art

[0002] Automotive parts forming molds are tools used to produce various automotive parts. Automotive parts forming molds include: stamping molds, plastic molds, casting molds, and rubber molds. They play an indispensable role in the automotive manufacturing industry. These molds are used for the production, processing, and manufacturing of various automotive parts.

[0003] Currently, the existing forming molds for automotive parts processing have the following problems: The existing forming molds for automotive parts processing do not have the ability to preheat the casting mold, resulting in a large temperature difference between the molten metal and the mold, increasing the probability of cracks in the mold due to rapid cooling. Moreover, the traditional forming molds for automotive parts processing also do not have the ability to remove impurities contained in the molten metal, resulting in poor quality of the cast parts. Therefore, they cannot meet the current usage requirements for forming molds for automotive parts processing. Summary of the Invention

[0004] In view of the above situation, to overcome the defects of the prior art, this solution provides a forming mold for automotive parts processing that can preheat the casting mold, reduce the temperature difference between the molten metal and the mold, and can remove impurities contained in the molten metal to ensure the quality of the castings.

[0005] The technical solution adopted by this solution is as follows: A forming mold for automotive parts processing proposed by this solution includes a base, a heating box, a control valve, a preheating type mold storage mechanism, a cold pressing type sealing mechanism, and a gradient type shaping mechanism. The heating box is arranged on the upper wall of the base, and the heating box is open at the upper end. The control valve is connected and arranged on the top side wall of the heating box. The preheating type mold storage mechanism includes a preheating mechanism and a pushing mechanism. The preheating mechanism is arranged on the side of the heating box close to the control valve, and the pushing mechanism is arranged on the inner wall of the heating box. The cold pressing type sealing mechanism includes a hinge mechanism, a pressure reducing mechanism, and a pressure control mechanism. The hinge mechanism is arranged on the side of the heating box close to the preheating mechanism, the pressure reducing mechanism is arranged on the upper wall of the hinge mechanism, and the pressure control mechanism is arranged on the bottom wall of the hinge mechanism. The gradient type shaping mechanism includes a heat dissipation mechanism and a ventilation mechanism. The heat dissipation mechanism is arranged on both sides of the heating box, and the ventilation mechanism is arranged on the side of the heating box close to the heat dissipation mechanism.

[0006] As a further optimization of the solution in this case, the preheating mechanism includes a preheating port, a thermoelectric seat, and a thermoelectric cooler group. The preheating ports are symmetrically arranged on one side of the base close to the control valve. The thermoelectric seat is arranged on the inner wall of the preheating port. The thermoelectric cooler group penetrates through the inner wall of the thermoelectric seat, and the heating end of the thermoelectric cooler group is located inside the preheating port. The pushing mechanism includes slide rails, a sliding frame, a casting mold, a limiting plate, a bearing spring, a temperature-resistant magnetic ring, a temperature-resistant electromagnet, and a conduction copper plate. The slide rails are symmetrically arranged in pairs at both ends of the inner wall of the heating box. The sliding frame slides between the slide rails. The conduction copper plate is arranged on the inner wall of the sliding frame. The casting mold is arranged on the upper wall of the conduction copper plate. The bearing spring is arranged between the conduction copper plate and the bottom wall of the heating box. The temperature-resistant magnetic ring is arranged on the bottom wall of the conduction copper plate outside the bearing spring. The temperature-resistant electromagnet is arranged on the bottom wall of the heating box outside the bearing spring. The limiting plates are symmetrically arranged on the upper walls at both ends of the sliding frame.

[0007] During use, in the initial state, the bearing spring is set to be shortened. The sliding frame slides along the slide rails and the inner wall of the heating box, driving the conduction copper plate to drop to the middle position of the heating box. The conduction copper plate drives the casting mold into the heating box. The thermoelectric cooler group heats the inside of the heating box through the heating end. After the temperature inside the heating box rises, it is convenient to preheat the casting mold.

[0008] Preferably, the hinge mechanism includes a fixed block, a hinge frame, and a sealing cover. The fixed block is disposed on the side wall of the heating box between the preheating ports. The hinge frame is hinged to one end of the fixed block away from the heating box. The sealing cover is hinged to one end of the hinge frame away from the fixed block. The pressure reducing mechanism includes a cold source insulation box, a telescopic tube, a conduction copper rod, a cooling copper plate, and a negative pressure insulation box. The cold source insulation box is disposed on the side wall of the heating box outside the thermoelectric cooler array. The cooling end of the thermoelectric cooler array is located inside the cold source insulation box. The telescopic tube is communicatively disposed on one side of the cold source insulation box away from the heating box. The negative pressure insulation boxes are symmetrically disposed on the upper walls at both ends of the sealing cover. The cooling copper plate penetrates through the inner wall of the negative pressure insulation box. The conduction copper rod is disposed between the telescopic tube and the cooling copper plate. Heat insulation coatings are applied to the outer sides of the conduction copper rod and the cooling copper plate. The pressure control mechanism includes a pressure sensor 1, a pressure sensor 2, an exhaust pump, a heat insulation sleeve, a guide rod, an iron hemisphere, a heat insulation hemisphere, a low-temperature electromagnet, and a pressure control spring. The pressure sensor 1 is disposed on the side wall of the negative pressure insulation box. The detection end of the pressure sensor 1 penetrates through the inner wall of the negative pressure insulation box. The pressure sensor 2 is disposed on the side of the heating box away from the control valve. The detection end of the pressure sensor 2 penetrates through the inner wall of the heating box. The exhaust pump is disposed on the side wall of the negative pressure insulation box. The air extraction end of the exhaust pump penetrates through the inside of the negative pressure insulation box. The heat insulation sleeve penetrates through the sealing cover and is communicatively disposed on the bottom wall of the negative pressure insulation box. The guide rod penetrates through the heat insulation sleeve and is disposed on the top wall of the negative pressure insulation box. The iron hemisphere is slidably disposed on the outer side of the guide rod. The heat insulation hemisphere is disposed on the side of the iron hemisphere away from the guide rod. The heat insulation hemisphere is slidably disposed on the outer side of the guide rod. The outer diameters of the iron hemisphere and the heat insulation hemisphere are the same as the inner diameter of the heat insulation sleeve. The pressure control spring is disposed between the iron hemisphere on the outer side of the guide rod and the top wall of the negative pressure insulation box. The low-temperature electromagnet is disposed on the top wall of the negative pressure insulation box outside the pressure control spring.

[0009] During use, lift the hinge frame. The hinge frame rotates along the fixed block to drive the sealing cover away from the upper wall of the heating box. The conduction copper rod drives the telescopic tube to fold, and the opening of the heating box is opened. The heat-resistant electromagnet is energized to generate magnetism. The heat-resistant electromagnet and the heat-resistant magnetic ring are arranged with the same pole. The heat-resistant electromagnet is fixed on the bottom wall of the heating box and pushes the heat-resistant magnetic ring through repulsion. The heat-resistant magnetic ring drives the sliding frame to slide upward along the slide rail by the deformation of the bearing spring. The sliding frame drives the casting mold into the upper part of the heating box through the conduction copper plate. Subsequently, the operator pours the molten metal into the casting mold to cast automotive parts.

[0010] Specifically, the heat dissipation mechanism includes a plugging plate and heat dissipation ports. The plugging plates are symmetrically disposed on both sides of the sliding frame. The heat dissipation ports are symmetrically disposed on both sides of the heating box. The plugging plates are used to plug the heat dissipation ports. The ventilation mechanism includes ventilation sleeves and ventilation fans. Multiple groups of the ventilation sleeves are disposed on the inner walls of the heat dissipation ports. The ventilation fans are disposed on the inner walls at one ends of the ventilation sleeves away from the heat dissipation ports.

[0011] During use, after the upper wall of the casting mold is filled with molten metal, the molten metal is gradually cooled and shaped. At this time, the sliding frame rises to drive the sealing plate away from the heat dissipation opening, and the heating box and the ventilation sleeve change to a conducting state. The ventilation fans on both sides of the heating box rotate forward and reverse respectively, so that the outside air can circulate and conduct into the interior of the heating box below the conduction copper plate, thereby taking away the heat generated during the casting of the casting mold through the conduction copper plate, facilitating the cooling and shaping of the molten metal.

[0012] Among them, the controller is arranged on the side wall of the heating box.

[0013] Preferably, the controller is electrically connected to the thermoelectric refrigeration chip group, the temperature-resistant electromagnet, the first pressure sensor, the second pressure sensor, the low-temperature electromagnet, and the ventilation fan respectively.

[0014] The beneficial effects obtained by adopting the above structure are as follows: Compared with the prior art, this solution combines a preheating casting structure and a low-temperature negative pressure structure. Through the set control valve, cold pressing and sealing mechanism, and gradient shaping mechanism, with the coordinated use of the preheating mechanism, the pushing mechanism, the hinged mechanism, the pressure reduction mechanism, the pressure control mechanism, the heat dissipation mechanism, and the ventilation sleeve, on the one hand, it can appropriately preheat the casting mold, reduce the temperature difference between the molten metal and the mold, and prevent cracks from occurring in the mold due to rapid cooling. On the other hand, it helps to remove gases, water vapor, and other impurities in the molten metal, thereby avoiding the appearance of pores and improving the internal quality of the casting. The sliding frame slides along the slide rail and the inner wall of the heating box to drive the conduction copper plate to fall to the middle position of the heating box, and the conduction copper plate drives the casting mold into the interior of the heating box. The thermoelectric refrigeration chip group heats the interior of the heating box through the heating end, and after the temperature inside the heating box rises, it is convenient to preheat the casting mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of this solution; Figure 2 is the front perspective view of this solution; Figure 3 is the structural schematic diagram of the heating box of this solution; Figure 4 is the structural schematic diagram of the pushing mechanism of this solution; Figure 5 is the structural schematic diagram of the pressure control mechanism of this solution; Figure 6 is the combined structural schematic diagram of the hinged mechanism and the pressure reduction mechanism of this solution; Figure 7 is the front view of this solution; Figure 8 is the rear view of this solution; Figure 9 is the side view of this solution; Figure 10 is the top view of this solution; Figure 11 is Figure 7 the sectional view taken along line A-A of; Figure 12 is Figure 10 the sectional view taken along line B-B of; Figure 13 is Figure 10 the sectional view taken along line C-C of.

[0016] Among them, 1. Base, 2. Heating box, 3. Control valve, 5. Preheating mechanism, 6. Preheating port, 7. Thermoelectric seat, 8. Thermoelectric cooler array, 9. Thrust mechanism, 10. Slide rail, 11. Sliding frame, 12. Casting mold, 13. Limiting plate, 15. Hinge mechanism, 16. Fixed block, 17. Hinge frame, 18. Sealing cover, 19. Pressure reduction mechanism, 20. Cold source insulation box, 21. Flexible pipe, 22. Conductive copper rod, 23. Cooling copper plate, 24. Pressure control mechanism, 25. Pressure sensor 1, 26. Pressure sensor 2, 27. Exhaust pump, 28. Heat insulation sleeve, 29. Guide rod, 30. Iron hemisphere, 31. Heat insulation hemisphere, 32. Low-temperature electromagnet, 33. Gradient type shaping mechanism, 34. Heat dissipation mechanism, 35. Plugging plate, 36. Heat dissipation port, 37. Ventilation mechanism, 38. Ventilation sleeve, 39. Ventilation fan, 40. Controller, 41. Bearing spring, 42. Temperature-resistant magnetic ring, 43. Temperature-resistant electromagnet, 44. Conductive copper plate, 45. Negative pressure insulation box, 46. Pressure control spring.

[0017] The accompanying drawings are used to provide a further understanding of this solution, and constitute a part of the description. Together with the embodiments of this solution, they are used to explain this solution and do not constitute a limitation to this solution. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of this solution will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this solution. Obviously, the described embodiments are only a part of the embodiments of this solution, rather than all the embodiments; based on the embodiments in this solution, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this solution.

[0019] In the description of this solution, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this solution and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this solution.

[0020] As Figures 1 - 13 shown, a forming die for automobile parts processing proposed by this solution includes a base 1, a heating box 2, a control valve 3, a preheating type die storage mechanism 4, a cold pressing type sealing mechanism 14, and a gradient type shaping mechanism 33. The heating box 2 is arranged on the upper wall of the base 1, and the heating box 2 is provided with an open upper end. The control valve 3 is communicatively arranged on the top side wall of the heating box 2. The preheating type die storage mechanism 4 includes a preheating mechanism 5 and a pushing mechanism 9. The preheating mechanism 5 is arranged on one side of the heating box 2 close to the control valve 3, and the pushing mechanism 9 is arranged on the inner wall of the heating box 2. The cold pressing type sealing mechanism 14 includes a hinged mechanism 15, a pressure reducing mechanism 19, and a pressure control mechanism 24. The hinged mechanism 15 is arranged on one side of the heating box 2 close to the preheating mechanism 5, the pressure reducing mechanism 19 is arranged on the upper wall of the hinged mechanism 15, and the pressure control mechanism 24 is arranged on the bottom wall of the hinged mechanism 15. The gradient type shaping mechanism 33 includes a heat dissipation mechanism 34 and a ventilation mechanism 37. The heat dissipation mechanism 34 is arranged on both sides of the heating box 2, and the ventilation mechanism 37 is arranged on one side of the heating box 2 close to the heat dissipation mechanism 34.

[0021] The preheating mechanism 5 includes a preheating port 6, a thermoelectric seat 7, and a thermoelectric cooler array 8. The preheating ports 6 are symmetrically arranged on one side of the base 1 close to the control valve 3. The thermoelectric seat 7 is arranged on the inner wall of the preheating port 6. The thermoelectric cooler array 8 is arranged through the inner wall of the thermoelectric seat 7, and the heating end of the thermoelectric cooler array 8 is located inside the preheating port 6. The pushing mechanism 9 includes slide rails 10, a sliding frame 11, a casting die 12, a limiting plate 13, a bearing spring 41, a temperature-resistant magnetic ring 42, a temperature-resistant electromagnet 43, and a conduction copper plate 44. The slide rails 10 are arranged in pairs and symmetrically on the inner walls at both ends of the heating box 2. The sliding frame 11 is slidably arranged between the slide rails 10. The conduction copper plate 44 is arranged on the inner wall of the sliding frame 11. The casting die 12 is arranged on the upper wall of the conduction copper plate 44. The bearing spring 41 is arranged between the conduction copper plate 44 and the bottom wall of the heating box 2. The temperature-resistant magnetic ring 42 is arranged on the bottom wall of the conduction copper plate 44 outside the bearing spring 41. The temperature-resistant electromagnet 43 is arranged on the bottom wall of the heating box 2 outside the bearing spring 41. The limiting plates 13 are symmetrically arranged on the upper walls at both ends of the sliding frame 11.

[0022] The articulated mechanism 15 includes a fixed block 16, an articulated frame 17, and a sealing cover 18. The fixed block 16 is provided on the side wall of the heating box 2 between the preheating ports 6. The articulated frame 17 is articulated at one end of the fixed block 16 away from the heating box 2. The sealing cover 18 is articulated at one end of the articulated frame 17 away from the fixed block 16. The pressure reduction mechanism 19 includes a cold source insulation box 20, a telescopic tube 21, a conduction copper rod 22, a cooling copper plate 23, and a negative pressure insulation box 45. The cold source insulation box 20 is provided on the side wall of the heating box 2 outside the thermoelectric cooler array 8. The cooling end of the thermoelectric cooler array 8 is located inside the cold source insulation box 20. The telescopic tube 21 is communicatively provided on one side of the cold source insulation box 20 away from the heating box 2. The negative pressure insulation boxes 45 are symmetrically provided on the upper walls at both ends of the sealing cover 18. The cooling copper plate 23 is penetrated and provided on the inner wall of the negative pressure insulation box 45. The conduction copper rod 22 is provided between the telescopic tube 21 and the cooling copper plate 23. Heat insulation coatings are applied on the outer sides of the conduction copper rod 22 and the cooling copper plate 23. The pressure control mechanism 24 includes a first pressure sensor 25, a second pressure sensor 26, an exhaust pump 27, a heat insulation sleeve 28, a guide rod 29, an iron hemisphere 30, a heat insulation hemisphere 31, a low-temperature electromagnet 32, and a pressure control spring 46. The first pressure sensor 25 is provided on the side wall of the negative pressure insulation box 45. The detection end of the first pressure sensor 25 penetrates and is provided on the inner wall of the negative pressure insulation box 45. The second pressure sensor 26 is provided on the side of the heating box 2 away from the control valve 3. The detection end of the second pressure sensor 26 penetrates and is provided on the inner wall of the heating box 2. The exhaust pump 27 is provided on the side wall of the negative pressure insulation box 45. The air extraction end of the exhaust pump 27 penetrates and is provided inside the negative pressure insulation box 45. The heat insulation sleeve 28 penetrates the sealing cover 18 and is communicatively provided on the bottom wall of the negative pressure insulation box 45. The guide rod 29 penetrates the heat insulation sleeve 28 and is provided on the top wall of the negative pressure insulation box 45. The iron hemisphere 30 is slidably provided on the outer side of the guide rod 29. The heat insulation hemisphere 31 is provided on the side of the iron hemisphere 30 away from the guide rod 29. The heat insulation hemisphere 31 is slidably provided on the outer side of the guide rod 29. The outer diameters of the iron hemisphere 30 and the heat insulation hemisphere 31 are the same as the inner diameter of the heat insulation sleeve 28. The pressure control spring 46 is provided between the iron hemisphere 30 on the outer side of the guide rod 29 and the top wall of the negative pressure insulation box 45. The low-temperature electromagnet 32 is provided on the top wall of the negative pressure insulation box 45 on the outer side of the pressure control spring 46.

[0023] The heat dissipation mechanism 34 includes a plugging plate 35 and heat dissipation ports 36. The plugging plates 35 are symmetrically provided on both sides of the sliding frame 11. The heat dissipation ports 36 are symmetrically provided on both sides of the heating box 2. The plugging plate 35 is used to plug the heat dissipation ports 36. The ventilation mechanism 37 includes ventilation sleeves 38 and ventilation fans 39. Multiple groups of the ventilation sleeves 38 are provided on the inner walls of the heat dissipation ports 36. The ventilation fans 39 are provided on the inner walls of one ends of the ventilation sleeves 38 away from the heat dissipation ports 36.

[0024] The controller 40 is provided on the side wall of the heating box 2.

[0025] The controller 40 is electrically connected to the thermoelectric cooler array 8, the temperature-resistant electromagnet 43, the first pressure sensor 25, the second pressure sensor 26, the low-temperature electromagnet 32, and the ventilation fan 39 respectively.

[0026] During specific use, in the initial state, the bearing spring 41 is set to be shortened. The sliding frame 11 slides along the slide rail 10 and the inner wall of the heating box 2, driving the conduction copper plate 44 to drop to the middle position of the heating box 2. The conduction copper plate 44 drives the casting mold 12 into the heating box 2. The sliding frame 11 drives the sealing plate 35 to block the heat dissipation port 36. The sealing cover 18 fits against the upper wall of the heating box 2. The heating box 2 is in a sealed state. The pressure control spring 46 is in an extended state. The elastic extension of the pressure control spring 46 pushes the iron hemisphere 30 and the heat insulation hemisphere 31 into the heat insulation sleeve 28. The negative pressure heat preservation box 45 and the heating box 2 are in a blocked state. Before casting automotive parts, it is necessary to preheat the casting mold 12. The controller 40 controls the thermoelectric cooler array 8 to start. The thermoelectric cooler array 8 heats the inside of the heating box 2 through the heating end. After the temperature inside the heating box 2 rises, the casting mold 12 is preheated. The operator lifts the articulated frame 17. The articulated frame 17 rotates along the fixed block 16, driving the sealing cover 18 away from the upper wall of the heating box 2. The conduction copper rod 22 drives the telescopic tube 21 to fold. The opening of the heating box 2 is opened. The controller 40 controls the temperature-resistant electromagnet 43 to start. The temperature-resistant electromagnet 43 generates magnetism when powered on. The temperature-resistant electromagnet 43 and the temperature-resistant magnetic ring 42 are set with the same poles. The temperature-resistant electromagnet 43 is fixed on the bottom wall of the heating box 2 and pushes the temperature-resistant magnetic ring 42 through repulsion. The temperature-resistant magnetic ring 42 drives the sliding frame 11 to slide upward along the slide rail 10 by the deformation of the bearing spring 41. The sliding frame 11 drives the casting mold 12 into the upper part of the heating box 2 through the conduction copper plate 44. Subsequently, the operator pours the molten metal into the casting mold 12 to cast automotive parts. After all the molten metal is poured into the casting mold 12, the operator pushes the articulated frame 17. The articulated frame 17 rotates along the fixed block 16, driving the sealing cover 18 to fit against the upper wall of the heating box 2. The sealing cover 18 presses down the sliding frame 11 through the limiting plate 13. The sliding frame 11 drives the casting mold 12 to be located inside the heating box 2 above the heat dissipation port 36. When the molten metal enters the casting mold 12, the temperature is relatively high and the fluidity is relatively good. It is necessary to remove the gas inside the molten metal to ensure the quality of the automotive parts after casting. The cooling end of the thermoelectric refrigeration plate group 8 reduces the temperature inside the cold source insulation box 20. The cold source insulation box 20 cools the conductive copper rod 22 through the telescopic tube 21. The conductive copper rod 22 cools the inside of the negative pressure insulation box 45 through the cooling copper plate 23. After the temperature inside the negative pressure insulation box 45 is reduced, the pressure drops accordingly. The pressure inside the cavity where the casting mold 12 is located is greater than the pressure inside the negative pressure insulation box 45, and a large amount of hot air gathers inside the box where the casting mold 12 is located. The controller 40 controls the pressure sensor 1 25 and the pressure sensor 2 26 to start. The pressure sensor 1 25 and the pressure sensor 2 26 respectively monitor the air pressure on the upper part of the negative pressure insulation box 45 and the heating box 2 in real time. When the pressure in the cavity above the heating box 2 and the average pressure inside the negative pressure insulation box 45 are negative, there is no need to adjust the pressure inside the negative pressure insulation box 45. The controller 40 controls the low-temperature electromagnet 32 to start. The low-temperature electromagnet 32 uses the pressure control spring 46 to deform and attract the iron hemisphere 30 through magnetic force. The iron hemisphere 30 drives the insulation hemisphere 31 to slide along the guide rod 29 and rise away from the inside of the insulation sleeve 28. The insulation sleeve 28 is turned on, and the hot air above the heating box 2 quickly flows into the negative pressure insulation box 45 through the insulation sleeve 28. When the pressure in the cavity on the upper wall of the heating box 2 and the pressure inside the negative pressure insulation box 45 are consistent with each other and are negative, the low-temperature electromagnet 32 is powered off and demagnetized, and the pressure control spring 46 elastically resets through the iron hemisphere 30 to drive the insulation hemisphere 31 to slide along the guide rod 29 into the inside of the insulation sleeve 28, and the insulation sleeve 28 is blocked and cut off. After the large amount of hot air entering the negative pressure insulation box 45 is cooled, the exhaust pump 27 discharges the gas inside the negative pressure insulation box 45 through the extraction end, and the pressure inside the negative pressure insulation box 45 is monitored by the pressure sensor 25. The negative pressure insulation box 45 resets to the initial pressure. When gas and other impurities escape from the casting mold 12, the pressure inside the upper cavity of the heating box 2 increases. In order to ensure that the casting mold 12 is fixed under negative pressure, the low-temperature electromagnet 32 drives the iron hemisphere 30 to rotate. The insulating hemisphere 31 is away from the interior of the insulating sleeve 28. Since the pressure inside the negative pressure insulation box 45 is lower than the pressure inside the upper cavity of the heating box 2, the hot air above the heating box 2 can enter the negative pressure insulation box 45 to be cooled and then discharged, thereby maintaining the negative pressure inside the heating box 2 where the casting mold 12 is located. Subsequently, the controller 40 controls the low-temperature electromagnet 32 to be powered off and demagnetized again, and the insulating sleeve 28 is blocked and cut off, preventing cold air from entering the interior of the heating box 2 and affecting the gradient cooling operation of the molten metal. When the inside of the heating box 2 where the casting mold 12 is located is in a negative pressure state, the controller 40 controls the thermoelectric cooler group 8 to stop heating the inside of the heating box 2. The sliding frame 11 rises to drive the plugging plate 35 away from the heat dissipation port 36, and the heating box 2 and the ventilation sleeve 38 are changed to a conducting state. The controller 40 controls the ventilation fans 39 on both sides of the heating box 2 to rotate forward and reverse respectively, so that the outside air can circulate and conduct to the inside of the heating box 2 below the conduction copper plate 44, thereby taking away the heat generated during the casting of the casting mold 12 through the conduction copper plate 44, facilitating the gradual cooling and shaping of the molten metal. After the automotive parts are shaped, the operator opens the control valve 3, and the outside air enters the upper part of the heating box 2. The articulated frame 17 is lifted, and the articulated frame 17 rotates along the fixed block 16 to drive the sealing cover 18 away from the upper wall of the heating box 2, and the formed parts are taken out of the inside of the casting mold 12; repeat the above operations when using it next time.

[0027] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0028] The above describes the solution and its implementation manner. This description is not restrictive, and only one of the implementation manners of the solution is shown in the drawings. The actual structure is not limited thereto. All in all, if an ordinary technician in the art is inspired by it and designs a structural manner and an embodiment similar to the technical solution without creative work without departing from the creative purpose of the solution, it shall fall within the protection scope of the solution.

Claims

1. A forming die for automobile parts processing, comprising a base and a heating box, characterized in that: It also includes a control valve, a preheating type die storage mechanism, a cold pressing type sealing mechanism and a gradient type shaping mechanism. The heating box is arranged on the upper wall of the base, and the heating box is provided with an open upper end. The control valve is connected and arranged on the top side wall of the heating box; The preheating type die storage mechanism includes a preheating mechanism and a pushing mechanism. The preheating mechanism is arranged on one side of the heating box close to the control valve, and the pushing mechanism is arranged on the inner wall of the heating box; The cold pressing type sealing mechanism includes a hinged mechanism, a pressure reducing mechanism and a pressure control mechanism; The hinged mechanism is arranged on one side of the heating box close to the preheating mechanism. The pressure reducing mechanism is arranged on the upper wall of the hinged mechanism, and the pressure control mechanism is arranged on the bottom wall of the hinged mechanism; The gradient type shaping mechanism includes a heat dissipation mechanism and a ventilation mechanism. The heat dissipation mechanism is arranged on both sides of the heating box, and the ventilation mechanism is arranged on one side of the heating box close to the heat dissipation mechanism.

2. The molding die for processing automotive parts according to claim 1, characterized in that: The preheating mechanism includes a preheating port, a thermoelectric seat and a thermoelectric cooler array. The preheating ports are symmetrically arranged on one side of the base close to the control valve. The thermoelectric seat is arranged on the inner wall of the preheating port. The thermoelectric cooler array penetrates through the inner wall of the thermoelectric seat, and the heating end of the thermoelectric cooler array is located inside the preheating port.

3. The forming die for automobile parts processing according to claim 2, characterized in that: The pushing mechanism includes slide rails, a sliding frame, a casting mold, a limiting plate, a bearing spring, a temperature-resistant magnetic ring, a temperature-resistant electromagnet and a conduction copper plate. The slide rails are symmetrically arranged in pairs at both ends of the inner wall of the heating box. The sliding frame slides between the slide rails. The conduction copper plate is arranged on the inner wall of the sliding frame. The casting mold is arranged on the upper wall of the conduction copper plate. The bearing spring is arranged between the conduction copper plate and the bottom wall of the heating box. The temperature-resistant magnetic ring is arranged on the bottom wall of the conduction copper plate outside the bearing spring. The temperature-resistant electromagnet is arranged on the bottom wall of the heating box outside the bearing spring. The limiting plates are symmetrically arranged on the upper walls at both ends of the sliding frame.

4. The forming die for processing automobile parts according to claim 3, wherein: The hinged mechanism includes a fixed block, a hinged frame and a sealing cover. The fixed block is arranged on the side wall of the heating box between the preheating ports. The hinged frame is hinged at one end of the fixed block away from the heating box. The sealing cover is hinged at one end of the hinged frame away from the fixed block.

5. The forming die for automobile parts processing according to claim 4, characterized in that: The pressure reducing mechanism includes a cold source heat preservation box, a telescopic pipe, a conduction copper rod, a cooling copper plate and a negative pressure heat preservation box. The cold source heat preservation box is arranged on the side wall of the heating box outside the thermoelectric cooler array, and the cooling end of the thermoelectric cooler array is located inside the cold source heat preservation box. The telescopic pipe is connected and arranged on one side of the cold source heat preservation box away from the heating box. The negative pressure heat preservation boxes are symmetrically arranged on the upper walls at both ends of the sealing cover. The cooling copper plate penetrates through the inner wall of the negative pressure heat preservation box. The conduction copper rod is arranged between the telescopic pipe and the cooling copper plate, and heat preservation coatings are coated on the outer sides of the conduction copper rod and the cooling copper plate.

6. The forming die for automobile parts processing according to claim 5, characterized in that: The pressure control mechanism includes a first pressure sensor, a second pressure sensor, an exhaust pump, a heat insulation sleeve, a guide rod, an iron hemisphere, a heat insulation hemisphere, a low-temperature electromagnet, and a pressure control spring. The first pressure sensor is arranged on the side wall of the negative-pressure heat preservation box, and the detection end of the first pressure sensor penetrates through and is arranged on the inner wall of the negative-pressure heat preservation box. The second pressure sensor is arranged on the side of the heating box away from the control valve, and the detection end of the second pressure sensor penetrates through and is arranged on the inner wall of the heating box. The exhaust pump is arranged on the side wall of the negative-pressure heat preservation box, and the air extraction end of the exhaust pump penetrates through and is arranged inside the negative-pressure heat preservation box. The heat insulation sleeve penetrates through the sealing cover and is communicated and arranged on the bottom wall of the negative-pressure heat preservation box. The guide rod penetrates through the heat insulation sleeve and is arranged on the top wall of the negative-pressure heat preservation box. The iron hemisphere is slidably arranged on the outer side of the guide rod. The heat insulation hemisphere is arranged on the side of the iron hemisphere away from the guide rod, and the heat insulation hemisphere is slidably arranged on the outer side of the guide rod. The outer diameters of the iron hemisphere and the heat insulation hemisphere are the same as the inner diameter of the heat insulation sleeve. The pressure control spring is arranged between the iron hemisphere on the outer side of the guide rod and the top wall of the negative-pressure heat preservation box. The low-temperature electromagnet is arranged on the top wall of the negative-pressure heat preservation box on the outer side of the pressure control spring.

7. The forming die for processing automotive parts according to claim 6, characterized in that: The heat dissipation mechanism includes a sealing plate and heat dissipation openings. The sealing plates are symmetrically arranged on both sides of the sliding frame. The heat dissipation openings are symmetrically arranged on both sides of the heating box. The sealing plates are used to seal the heat dissipation openings.

8. A forming die for automotive parts processing according to claim 7, characterized in that: The ventilation mechanism includes ventilation sleeves and ventilation fans. Multiple groups of the ventilation sleeves are arranged on the inner walls of the heat dissipation openings. The ventilation fans are arranged on the inner walls of the ends of the ventilation sleeves away from the heat dissipation openings.

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