A forming die for processing automobile parts

Abstract

The application belongs to the technical field of automobile accessory machining, and particularly relates to a forming die for automobile accessory machining, which comprises a base, a heating box, a control valve, a preheating type mold storage mechanism, a cold pressure type sealing mechanism and a gradient type shaping mechanism. The heating box is arranged on the upper wall of the base and is provided with an open upper end. The control valve is arranged in the top side wall of the heating box. The preheating type mold storage mechanism comprises a preheating mechanism and a push mechanism. The forming die for automobile accessory machining can preheat the casting mold, reduce the temperature difference between the metal liquid and the mold, remove the impurities contained in the metal liquid, and ensure the quality of the casting.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automobile parts processing, and particularly relates to a forming die for automobile part processing. BACKGROUND

[0002] The automobile part forming die is a tool for producing various automobile parts, and the automobile part forming die comprises a stamping die, a plastic die, a casting die and a rubber die, which play an indispensable role in the automobile manufacturing industry, and the dies are used for producing, processing and manufacturing various automobile parts.

[0003] The existing automobile part processing forming die has the following problems:

[0004] The existing automobile part processing forming die does not have the capability of preheating the casting die, resulting in a large temperature difference between the metal liquid and the die, increasing the probability of cracks in the die due to rapid cooling, and the traditional automobile part processing forming die also does not have the capability of removing impurities contained in the metal liquid, resulting in poor quality of the cast parts, therefore, it cannot meet the use requirements of the existing automobile part processing forming die. SUMMARY

[0005] In view of the above problems, the present application provides an automobile part processing forming die which can preheat the casting die, reduce the temperature difference between the metal liquid and the die, and remove impurities contained in the metal liquid to ensure the quality of the cast parts.

[0006] The technical scheme adopted by the present application is as follows: the automobile part processing forming die provided by the present application comprises a base, a heating box, a control valve, a preheating type mold storage mechanism, a cold pressure type sealing mechanism and a gradient type shaping mechanism, the heating box is arranged on the upper wall of the base and is provided with an open upper end, the control valve is arranged in communication on the top side wall of the heating box, the preheating type mold storage mechanism comprises a preheating mechanism and a push mechanism, the preheating mechanism is arranged on one side of the heating box close to the control valve, and the push mechanism is arranged on the inner wall of the heating box, the cold pressure type sealing mechanism comprises 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 comprises 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.

[0007] As a further preferred of the scheme, the preheating mechanism comprises a preheating port, a thermoelectric base and a thermoelectric refrigeration piece group, the preheating port is symmetrically arranged on one side of the base close to the control valve, the thermoelectric base is arranged on the inner wall of the preheating port, and the thermoelectric refrigeration piece group is arranged through the inner wall of the thermoelectric base, and the heating end of the thermoelectric refrigeration piece group is located in the preheating port; the pushing mechanism comprises 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 conductive copper plate, the slide rails are symmetrically arranged in pairs on the inner walls of the two ends of the heating box, the sliding frame is slidingly arranged between the slide rails, the conductive copper plate is arranged on the inner wall of the sliding frame, the casting mold is arranged on the upper wall of the conductive copper plate, the bearing spring is arranged between the conductive copper plate and the bottom wall of the heating box, the temperature-resistant magnetic ring is arranged on the bottom wall of the conductive copper plate outside the bearing spring, the temperature-resistant electromagnet is arranged on the bottom wall of the heating box outside the bearing spring, and the limiting plate is symmetrically arranged on the upper walls of the two ends of the sliding frame.

[0008] In use, the bearing spring is in a shortened state in the initial state, the sliding frame is driven to slide along the inner walls of the slide rails and the heating box to drive the conductive copper plate to fall to the middle position of the heating box, the conductive copper plate drives the casting mold to enter the heating box, the thermoelectric refrigeration piece group heats the inside of the heating box through the heating end, and the inside of the heating box is preheated after the temperature is raised.

[0009] Preferably, the hinged mechanism comprises 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 openings, the hinged frame is hingedly arranged at one end of the fixed block away from the heating box, and the sealing cover is hingedly arranged at one end of the hinged frame away from the fixed block; the pressure reducing mechanism comprises a cold source insulation box, an extension pipe, a conductive copper rod, a cooling copper plate and a negative pressure insulation box, the cold source insulation box is arranged on the side wall of the heating box outside the thermoelectric refrigeration piece group, the refrigeration end of the thermoelectric refrigeration piece group is located inside the cold source insulation box, the extension pipe is communicated and arranged on the side of the cold source insulation box away from the heating box, the negative pressure insulation box is symmetrically arranged on the upper wall of both ends of the sealing cover, the cooling copper plate is arranged through the inner wall of the negative pressure insulation box, the conductive copper rod is arranged between the extension pipe and the cooling copper plate, and the outer sides of the conductive copper rod and the cooling copper plate are coated with a heat preservation coating; the pressure control mechanism comprises a pressure sensor one, a pressure sensor two, an exhaust pump, a temperature insulation sleeve, a guide rod, a ferrous hemisphere, a temperature insulation hemisphere, a low-temperature electromagnet and a pressure control spring, the pressure sensor one is arranged on the side wall of the negative pressure insulation box, the detection end of the pressure sensor one is arranged through the inner wall of the negative pressure insulation box, the pressure sensor two is arranged on the side of the heating box away from the control valve, the detection end of the pressure sensor two is arranged through the inner wall of the heating box, the exhaust pump is arranged on the side wall of the negative pressure insulation box, the suction end of the exhaust pump is arranged through the inside of the negative pressure insulation box, the temperature insulation sleeve is arranged through the sealing cover and communicated on the bottom wall of the negative pressure insulation box, the guide rod is arranged through the temperature insulation sleeve on the top wall of the negative pressure insulation box, the ferrous hemisphere is slidingly arranged outside the guide rod, the temperature insulation hemisphere is arranged on the side of the ferrous hemisphere away from the guide rod, the temperature insulation hemisphere is slidingly arranged outside the guide rod, the outer diameter of the ferrous hemisphere and the temperature insulation hemisphere is consistent with the inner diameter of the temperature insulation sleeve, the pressure control spring is arranged between the ferrous hemisphere outside the guide rod and the top wall of the negative pressure insulation box, and the low-temperature electromagnet is arranged on the top wall of the negative pressure insulation box outside the pressure control spring.

[0010] In use, the hinged frame is lifted, the hinged frame rotates along the fixed block to drive the sealing cover away from the upper wall of the heating box, the conductive copper rod drives the extension pipe to fold, the opening of the heating box is opened, the temperature-resistant electromagnet is powered on to generate magnetism, the temperature-resistant electromagnet and the temperature-resistant magnetic ring are arranged with the same polarity, the temperature-resistant electromagnet is fixed on the bottom wall of the heating box and pushes the temperature-resistant magnetic ring through repulsive force, the temperature-resistant magnetic ring drives the sliding frame to slide along the slide rail by deformation of the bearing spring, the sliding frame drives the casting mold into the upper part of the heating box through the conductive copper plate, and then the operating personnel pour the metal liquid into the casting mold to cast automobile accessories.

[0011] Specifically, the heat dissipation mechanism comprises a plugging plate and a heat dissipation opening, the plugging plate is symmetrically arranged on both sides of the sliding frame, the heat dissipation opening is symmetrically arranged on both sides of the heating box, and the plugging plate is used for plugging the heat dissipation opening; the ventilation mechanism comprises a ventilation sleeve and a ventilation fan, a plurality of groups of the ventilation sleeve are arranged on the inner wall of the heat dissipation opening, and the ventilation fan is arranged on the inner wall of one end of the ventilation sleeve away from the heat dissipation opening.

[0012] When in use, the upper wall of the casting mold is used to gradually cool and shape the metal liquid after containing the metal liquid, at this time, the sliding frame is raised to drive the blocking plate away from the heat dissipation opening, the heating box and the ventilation sleeve change to the conducting state, and the ventilation fans on both sides of the heating box are respectively forward and reverse, so that the external air can circulate and conduct the internal of the heating box below the copper plate, thereby taking away the heat generated during the casting of the casting mold through the copper plate, facilitating the cooling and shaping of the metal liquid.

[0013] The controller is arranged on the side wall of the heating box.

[0014] Preferably, the controller is electrically connected with the thermoelectric refrigeration piece group, the temperature-resistant electromagnet, the pressure sensor one, the pressure sensor two, the low-temperature electromagnet and the ventilation fan respectively.

[0015] The beneficial effects achieved by the above structure of the present scheme are as follows:

[0016] Compared with the prior art, the present scheme combines the preheating casting structure with the low-temperature negative pressure structure, through the control valve, the cold pressure type sealing mechanism and the gradient type shaping mechanism, and the mutual cooperation 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, the casting mold can be properly preheated, the temperature difference between the metal liquid and the mold is reduced, and cracks are prevented from being generated due to the rapid cooling of the mold, on the other hand, it is helpful to remove the gas, water vapor and other impurities in the metal liquid, thereby avoiding the appearance of pores, and further 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 conductive copper plate to fall to the middle position of the heating box, the conductive copper plate drives the casting mold to enter the inside of the heating box, the thermoelectric refrigeration piece group heats the inside of the heating box through the heating end, and the inside of the heating box is heated to facilitate the preheating of the casting mold. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure schematic diagram of the present scheme;

[0018] Figure 2 It is the front perspective view of the present scheme;

[0019] Figure 3 It is the structure schematic diagram of the heating box of the present scheme;

[0020] Figure 4 It is the structure schematic diagram of the pushing mechanism of the present scheme;

[0021] Figure 5 It is the structure schematic diagram of the pressure control mechanism of the present scheme;

[0022] Figure 6 It is the combined structure schematic diagram of the hinged mechanism and the pressure reduction mechanism of the present scheme;

[0023] Figure 7 is a front view of the present scheme;

[0024] Figure 8 is a rear view of the present scheme;

[0025] Figure 9 is a side view of the present scheme;

[0026] Figure 10 is a top view of the present scheme;

[0027] Figure 11 is an A-A sectional view of Figure 7 ;

[0028] Figure 12 is a B-B sectional view of Figure 10 ;

[0029] Figure 13 is a C-C sectional view of Figure 10 .

[0030] Wherein, 1, base, 2, heating box, 3, control valve, 5, preheating mechanism, 6, preheating port, 7, thermoelectric base, 8, thermoelectric refrigeration piece group, 9, pushing mechanism, 10, slide rail, 11, sliding frame, 12, casting mold, 13, limiting plate, 15, hinged mechanism, 16, fixed block, 17, hinged frame, 18, sealing cover, 19, pressure reducing mechanism, 20, cold source insulation box, 21, telescopic pipe, 22, conductive copper rod, 23, cooling copper plate, 24, pressure control mechanism, 25, pressure sensor one, 26, pressure sensor two, 27, exhaust pump, 28, temperature insulation sleeve, 29, guide rod, 30, iron hemisphere, 31, temperature 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.

[0031] The accompanying drawings are used to provide further understanding of the present scheme, and constitute a part of the specification, and are used to explain the present scheme together with embodiments of the present scheme, and do not constitute a limitation on the present scheme. DETAILED DESCRIPTION

[0032] The technical scheme in the embodiments of the present scheme will be described clearly and completely in combination with the drawings in the embodiments of the present scheme. Obviously, the described embodiments are only a part of the embodiments of the present scheme, not all the embodiments; based on the embodiments in the present scheme, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present scheme.

[0033] In the description of the present scheme, it needs to be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present scheme and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present scheme.

[0034] As shown in Figures 1-13 The present scheme provides a forming die for automobile accessory machining, which comprises a base 1, a heating box 2, a control valve 3, a preheating type mold storage mechanism 4, a cold pressure 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 is provided with an open upper end. The control valve 3 is arranged in communication with the top side wall of the heating box 2. The preheating type mold storage mechanism 4 comprises a preheating mechanism 5 and a push mechanism 9. The preheating mechanism 5 is arranged on one side of the heating box 2 close to the control valve 3. The push mechanism 9 is arranged on the inner wall of the heating box 2. The cold pressure type sealing mechanism 14 comprises 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. The pressure control mechanism 24 is arranged on the bottom wall of the hinged mechanism 15. The gradient type shaping mechanism 33 comprises 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. The ventilation mechanism 37 is arranged on one side of the heating box 2 close to the heat dissipation mechanism 34.

[0035] The preheating mechanism 5 comprises a preheating port 6, a thermoelectric seat 7 and a thermoelectric refrigeration piece group 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 refrigeration piece group 8 is arranged in penetration on the inner wall of the thermoelectric seat 7. The heating end of the thermoelectric refrigeration piece group 8 is located inside the preheating port 6. The push mechanism 9 comprises slide rails 10, a sliding frame 11, a casting mold 12, a limiting plate 13, a bearing spring 41, a temperature-resistant magnetic ring 42, a temperature-resistant electromagnet 43 and a conductive copper plate 44. The slide rails 10 are symmetrically arranged in pairs on the inner walls of both ends of the heating box 2. The sliding frame 11 is slidingly arranged between the slide rails 10. The conductive copper plate 44 is arranged on the inner wall of the sliding frame 11. The casting mold 12 is arranged on the upper wall of the conductive copper plate 44. The bearing spring 41 is arranged between the conductive 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 conductive 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 plate 13 is symmetrically arranged on the upper walls of both ends of the sliding frame 11.

[0036] The hinge mechanism 15 includes a fixed block 16, a hinge frame 17 and a sealing cover 18, the fixed block 16 is arranged on the side wall of the heating box 2 between the preheating openings 6, the hinge frame 17 is hingedly arranged at one end of the fixed block 16 away from the heating box 2, and the sealing cover 18 is hingedly arranged at one end of the hinge frame 17 away from the fixed block 16; the pressure reducing mechanism 19 includes a cold source insulation box 20, an extension tube 21, a conductive copper rod 22, a cooling copper plate 23 and a negative pressure insulation box 45, the cold source insulation box 20 is arranged on the side wall of the heating box 2 outside the thermoelectric refrigeration piece group 8, the refrigeration end of the thermoelectric refrigeration piece group 8 is located inside the cold source insulation box 20, the extension tube 21 is communicated and arranged on one side of the cold source insulation box 20 away from the heating box 2, the negative pressure insulation box 45 is symmetrically arranged on the upper walls of both ends of the sealing cover 18, the cooling copper plate 23 is penetratingly arranged on the inner wall of the negative pressure insulation box 45, and the conductive copper rod 22 is arranged between the extension tube 21 and the cooling copper plate 23, and the outer sides of the conductive copper rod 22 and the cooling copper plate 23 are coated with a heat preservation coating; the pressure control mechanism 24 includes a pressure sensor one 25, a pressure sensor two 26, an exhaust pump 27, a temperature insulation sleeve 28, a guide rod 29, an iron hemisphere 30, a temperature insulation hemisphere 31, a low-temperature electromagnet 32 and a pressure control spring 46, the pressure sensor one 25 is arranged on the side wall of the negative pressure insulation box 45, the detection end of the pressure sensor one 25 is penetratingly arranged on the inner wall of the negative pressure insulation box 45, the pressure sensor two 26 is arranged on one side of the heating box 2 away from the control valve 3, the detection end of the pressure sensor two 26 is penetratingly arranged on the inner wall of the heating box 2, the exhaust pump 27 is arranged on the side wall of the negative pressure insulation box 45, the suction end of the exhaust pump 27 is penetratingly arranged in the negative pressure insulation box 45, the temperature insulation sleeve 28 is penetratingly and sealingly arranged on the bottom wall of the negative pressure insulation box 45, the guide rod 29 is penetratingly arranged on the top wall of the negative pressure insulation box 45 through the temperature insulation sleeve 28, the iron hemisphere 30 is slidingly arranged on the outer side of the guide rod 29, the temperature insulation hemisphere 31 is arranged on one side of the iron hemisphere 30 away from the guide rod 29, the temperature insulation hemisphere 31 is slidingly arranged on the outer side of the guide rod 29, the outer diameters of the iron hemisphere 30 and the temperature insulation hemisphere 31 are consistent with the inner diameter of the temperature insulation sleeve 28, the pressure control spring 46 is arranged 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, and the low-temperature electromagnet 32 is arranged on the top wall of the negative pressure insulation box 45 on the outer side of the pressure control spring 46.

[0037] The heat dissipation mechanism 34 includes a blocking plate 35 and a heat dissipation opening 36, the blocking plate 35 is symmetrically arranged on both sides of the sliding frame 11, and the heat dissipation opening 36 is symmetrically arranged on both sides of the heating box 2, and the blocking plate 35 is used for blocking the heat dissipation opening 36; the ventilation mechanism 37 includes a ventilation sleeve 38 and a ventilation fan 39, and a plurality of groups of the ventilation sleeve 38 are arranged on the inner wall of the heat dissipation opening 36, and the ventilation fan 39 is arranged on the inner wall of one end of the ventilation sleeve 38 away from the heat dissipation opening 36.

[0038] The controller 40 is arranged on the side wall of the heating box 2.

[0039] The controller 40 is electrically connected with the thermoelectric refrigeration piece group 8, the temperature-resistant electromagnet 43, the pressure sensor 25, the pressure sensor 26, the low-temperature electromagnet 32 and the ventilation fan 39 respectively.

[0040] In specific use, in the initial state, the bearing spring 41 is arranged in a shortened state, the sliding frame 11 is slid along the slide rail 10 and the inner wall of the heating box 2 to drive the conductive copper plate 44 to fall to the middle position of the heating box 2, the conductive copper plate 44 drives the casting mold 12 to enter the inside of the heating box 2, the sliding frame 11 drives the blocking plate 35 to block the heat dissipation opening 36, the sealing cover 18 is attached to 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 elongated state, the pressure control spring 46 is elastically elongated to push the iron hemisphere 30 and the temperature insulation hemisphere 31 to be located in the temperature insulation sleeve 28, and the negative pressure heat preservation box 45 is in a blocked state between the heating box 2.

[0041] Before the automobile parts are cast, the casting mold 12 needs to be preheated, the controller 40 controls the thermoelectric refrigeration piece group 8 to start, the thermoelectric refrigeration piece group 8 heats the inside of the heating box 2 through the heating end, and the inside of the heating box 2 preheats the casting mold 12 after the temperature rises.

[0042] The operating personnel lifts the hinged frame 17, the hinged frame 17 rotates along the fixed block 16 to drive the sealing cover 18 to move away from the upper wall of the heating box 2, the conductive copper rod 22 drives the telescopic pipe 21 to be folded, 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 after being electrified, the temperature-resistant electromagnet 43 and the temperature-resistant magnetic ring 42 are arranged with the same polarity, the temperature-resistant electromagnet 43 is fixed to 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 upwards along the slide rail 10 by using the deformation of the bearing spring 41, the sliding frame 11 drives the casting mold 12 to enter the upper part of the heating box 2 through the conductive copper plate 44, and then the operating personnel pours the metal liquid into the inside of the casting mold 12 to cast the automobile parts, when the metal liquid is completely poured into the inside of the casting mold 12, the operating personnel pushes the hinged frame 17, the hinged frame 17 rotates along the fixed block 16 to drive the sealing cover 18 to be attached to the upper wall of the heating box 2, and the sealing cover 18 presses the sliding frame 11 downwards through the limiting plate 13, the sliding frame 11 drives the casting mold 12 to be located in the inside of the heating box 2 above the heat dissipation opening 36.

[0043] The temperature of the molten metal is high and the flowability is good at the initial stage of entering into the casting mold 12, and the gas inside the molten metal needs to be removed to ensure the quality of the automobile parts after casting. The refrigeration end of the thermoelectric refrigeration piece 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 pipe 21, the conductive copper rod 22 cools the inside of the negative pressure insulation box 45 through the cooling copper plate 23, and the pressure inside the negative pressure insulation box 45 decreases after the temperature inside the negative pressure insulation box 45 decreases. 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 gas is gathered inside the cavity where the casting mold 12 is located. The controller 40 controls the pressure sensor one 25 and the pressure sensor two 26 to start, and the pressure sensor one 25 and the pressure sensor two 26 respectively monitor the air pressure of the negative pressure insulation box 45 and the upper part of the heating box 2 in real time;

[0044] When the average value of the cavity pressure of the upper part of the heating box 2 and the pressure inside the negative pressure insulation box 45 is negative pressure, the pressure inside the negative pressure insulation box 45 does not need to be adjusted. The controller 40 controls the low-temperature electromagnet 32 to start, and the low-temperature electromagnet 32 uses the deformation of the pressure control spring 46 to attract the iron semi-sphere 30 by magnetic force. The iron semi-sphere 30 drives the thermal insulation semi-sphere 31 to slide upward along the guide rod 29 and away from the inside of the thermal insulation sleeve 28. The thermal insulation sleeve 28 is open, and the hot gas in the upper part of the heating box 2 quickly flows into the inside of the negative pressure insulation box 45 through the thermal insulation sleeve 28. When the pressure of the upper wall cavity of the heating box 2 and the pressure inside the negative pressure insulation box 45 are consistent and negative pressure, the low-temperature electromagnet 32 is de-energized and demagnetized. The pressure control spring 46 is elastically reset, and drives the thermal insulation semi-sphere 31 to slide into the inside of the thermal insulation sleeve 28 through the iron semi-sphere 30 along the guide rod 29. The thermal insulation sleeve 28 is blocked and cut off;

[0045] A large amount of hot gas enters the inside of the negative pressure insulation box 45 and is cooled. The exhaust pump 27 discharges the gas in the inside of the negative pressure insulation box 45 through the suction end. The pressure inside the negative pressure insulation box 45 is monitored by the pressure sensor one 25. The reset value of the negative pressure insulation box 45 is the initial pressure. When the gas and other impurities in the inside of the casting mold 12 escape, the pressure in the inside of the upper cavity of the heating box 2 increases. In order to ensure that the casting mold 12 is in a negative pressure state for shaping operation, the low-temperature electromagnet 32 drives the thermal insulation semi-sphere 31 to move away from the inside of the thermal insulation sleeve 28 through the iron semi-sphere 30. Because the pressure inside the negative pressure insulation box 45 is less than the pressure in the inside of the upper cavity of the heating box 2, the hot gas in the upper part of the heating box 2 can enter the inside of the negative pressure insulation box 45 for cooling and then be discharged, so that the inside of the heating box 2 where the casting mold 12 is located always maintains a negative pressure state. Subsequently, the controller 40 controls the low-temperature electromagnet 32 to be de-energized and demagnetized again. The thermal insulation sleeve 28 is blocked and cut off to prevent cold air from entering the inside of the heating box 2 and affecting the gradient cooling operation of the molten metal;

[0046] When the casting mold 12 is located inside the heating box 2 in a negative pressure state, the controller 40 controls the thermoelectric refrigeration piece group 8 to stop heating the inside of the heating box 2, the sliding frame 11 rises to drive the blocking plate 35 away from the heat dissipation opening 36, the heating box 2 and the ventilation sleeve 38 change to a conductive state, the controller 40 controls the ventilation fans 39 on both sides of the heating box 2 to be positive and reverse respectively, so that the outside air can flow through 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 metal liquid. After the automobile parts are shaped, the operator opens the control valve 3, the outside air enters the upper part of the heating box 2, lifts the hinged frame 17, and the hinged 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 takes out the shaped parts from the inside of the casting mold 12; the above operation can be repeated next time.

[0047] It should be noted that the relational terms herein such as first and second and the like are used only to differentiate one entity or operation from another, and do not necessarily require or imply that any such actual relationship or order exists between or among the entities or operations. Also, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusion, so that processes, methods, articles, or apparatuses including a series of elements not only include those elements, but also include other elements not explicitly listed or other elements inherent to such processes, methods, articles, or apparatuses.

[0048] The above describes the technical scheme and its implementation, which is not limited, and the drawings only show one of the embodiments of the technical scheme, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by it, without departing from the purpose of the technical scheme, without creative design, similar structure and embodiments of the technical scheme can be designed, which should belong to the protection scope of the technical scheme.

Claims

1. A forming mold for processing an automobile part, comprising a base and a heating box, characterized in that: It also includes control valve, preheating type mold storage mechanism, cold pressure type sealing mechanism and gradient type shaping mechanism, the heating box is arranged on the upper wall of the base, the heating box is provided with an open upper end, the control valve is arranged in the top side wall of the heating box in communication; The preheating type mold 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 pressure 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. The hinged mechanism includes a sealing cover. The pressure reducing mechanism includes a negative pressure incubator. The pressure control mechanism includes a pressure sensor one, a pressure sensor two, an exhaust pump, a temperature insulation sleeve, a guide rod, an iron hemisphere, a temperature insulation hemisphere, a low-temperature electromagnet and a pressure control spring. The pressure sensor one is arranged on the side wall of the negative pressure incubator, the detection end of the pressure sensor one is arranged through the inner wall of the negative pressure incubator, the pressure sensor two is arranged on one side of the heating box away from the control valve, the detection end of the pressure sensor two is arranged through the inner wall of the heating box, the exhaust pump is arranged on the side wall of the negative pressure incubator, the suction end of the exhaust pump is arranged through the inside of the negative pressure incubator, the temperature insulation sleeve is arranged in the bottom wall of the negative pressure incubator in communication through the sealing cover, the guide rod is arranged on the top wall of the negative pressure incubator through the temperature insulation sleeve, the iron hemisphere is arranged on the outer side of the guide rod in sliding mode, the temperature insulation hemisphere is arranged on one side of the iron hemisphere away from the guide rod, the temperature insulation hemisphere is arranged on the outer side of the guide rod in sliding mode, the outer diameter of the iron hemisphere and the temperature insulation hemisphere is consistent with the inner diameter of the temperature 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 incubator, and the low-temperature electromagnet is arranged on the top wall of the negative pressure incubator on the outer side of the pressure control spring.

2. The forming die for processing an automobile part according to claim 1, characterized in that: The preheating mechanism includes a preheating port, a thermoelectric seat and a thermoelectric refrigeration piece 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, and the thermoelectric refrigeration piece group is arranged through the inner wall of the thermoelectric seat, and the heating end of the thermoelectric refrigeration piece group is located in the inside of the preheating port.

3. The forming die for processing an automobile part 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 conductive copper plate, the slide rails are symmetrically arranged in pairs on the inner walls of the two ends of the heating box, the sliding frame is arranged between the slide rails in sliding mode, the conductive copper plate is arranged on the inner wall of the sliding frame, the casting mold is arranged on the upper wall of the conductive copper plate, the bearing spring is arranged between the conductive copper plate and the bottom wall of the heating box, the temperature-resistant magnetic ring is arranged on the bottom wall of the conductive copper plate on the outer side of the bearing spring, the temperature-resistant electromagnet is arranged on the bottom wall of the heating box on the outer side of the bearing spring, and the limiting plate is symmetrically arranged on the upper walls of the two ends of the sliding frame.

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

5. The forming die for processing an automobile part according to claim 4, wherein: The pressure reducing mechanism further comprises a cold source insulation box, an expansion pipe, a conductive copper rod and a cooling copper plate, the cold source insulation box is arranged on the side wall of the heating box outside the thermoelectric refrigeration piece group, the refrigeration end of the thermoelectric refrigeration piece group is located in the cold source insulation box, the expansion pipe is arranged on the side of the cold source insulation box away from the heating box, the negative pressure insulation box is symmetrically arranged on the upper wall of both ends of the sealing cover, the cooling copper plate is arranged through the inner wall of the negative pressure insulation box, the conductive copper rod is arranged between the expansion pipe and the cooling copper plate, and the outer sides of the conductive copper rod and the cooling copper plate are coated with a thermal insulation coating.

6. A forming die for processing an automobile part according to claim 5, wherein: The heat dissipation mechanism comprises a blocking plate and a heat dissipation port, the blocking plate is symmetrically arranged on both sides of the sliding frame, and the heat dissipation port is symmetrically arranged on both sides of the heating box.

7. The forming die for processing an automobile part according to claim 6, wherein: The ventilation mechanism comprises a ventilation sleeve and a ventilation fan, and a plurality of groups of the ventilation sleeve are arranged on the inner wall of the heat dissipation port.

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