Automobile part machining die for preventing overheating

Abstract

The present application relates to the technical field of stamping metal, and especially discloses an automobile part machining die capable of preventing overheating, which comprises a main frame, an upper die, a base part, a lower die, an ejection part, a separation flow guide part, a heat conduction part and a lubricating part, the main frame comprises a lower seat plate, an upper seat plate, a gas conveying part, a conduit, a piston guide column, a guide groove and an elastic resistance piece, the lower seat plate is arranged in alignment with the upper seat plate, the lower side of the upper seat plate is provided with the gas conveying part, the gas conveying part comprises a gas passage frame tube fixedly connected with the upper seat plate, a pair of gas inlet valve tubes are communicated with the corners of the gas passage frame tube, and a conduit is communicated with the lower end corner of the gas passage frame tube, in the present application, the base part, the separation flow guide part, the heat conduction part and the ejection part are arranged to automatically cool the automobile part machining die through double cooling measures during stamping processing, and the power consumption is not increased, and the strength of the die is not affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stamping metal, in particular to an automobile part machining die capable of preventing overheating. BACKGROUND

[0002] The automobile part machining die is a precision tool for manufacturing automobile parts, which processes metal plates or plastic materials into parts meeting design requirements through stamping process. These dies have high precision, high durability and complex structure, can realize mass production, ensure the dimensional accuracy and surface quality of parts, and meet the strict requirements of the automobile industry on the quality and production efficiency of parts.

[0003] However, the existing automobile part machining die is prone to overheating during long-time and frequent stamping process, especially during hot stamping process. The die temperature continues to rise, and overheating can cause the die to expand and deform, and even cause the rod channel of the die to shrink, thereby affecting the normal ejection action of the ejector rod mechanism and possibly causing the rod to be stuck. The current cooling methods for the die mainly include air cooling and water cooling. The air cooling has low heat dissipation efficiency and can only dissipate heat from the surface of the die. Although the water cooling has high heat dissipation efficiency, in order to improve the heat dissipation efficiency of the die interior, a coolant liquid channel needs to be provided in the die, which may reduce the strength of the die. Therefore, according to the above problems, an automobile part machining die capable of preventing overheating is proposed. SUMMARY

[0004] The present application aims to provide an automobile part machining die capable of preventing overheating, to solve the problem that the existing automobile part machining die is prone to overheating during long-time and frequent stamping process, thereby affecting the demolding operation. The existing heat dissipation methods have limited heat dissipation performance, affect the strength of the die, and usually need to increase the power consumption for heat dissipation.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] The utility model provides an automobile part processing die of preventing overheating, including main frame, upper die, pedestal, lower die, ejection part, separate flow guide part, heat conduction part and lubricating part, the main frame includes lower seat plate, upper seat plate, gas conveying part, pipe, piston guide column, guide groove and elastic resistance piece, the lower seat plate is in the upper and lower alignment with upper seat plate setting, the downside of upper seat plate is installed gas conveying part, the gas conveying part includes the air frame pipe of fixed connection with upper seat plate, the corner of air frame pipe all is linked with a pair of air inlet valve pipe, the lower end surface corner of air frame pipe all is linked with pipe, the inside of pipe all is slidably connected with piston guide column, and the lower end of piston guide column all is fixedly connected with the upper end surface of lower seat plate, the opposite surface of pipe in front and back all is equipped with guide groove, the downside of upper seat plate is fixedly connected with upper die, the upside of lower seat plate is fixedly connected with pedestal, the upside of pedestal is fixedly connected with the lower die of upper die upper and lower alignment, the lower die includes mould body, the upper portion of mould body is equipped with mould cavity in the inside, the downside of mould cavity is equipped with a plurality of equidistance setting rod way.

[0007] Preferably, the pedestal includes a lower liquid shell fixedly connected with the lower seat plate, an upper expansion shell fixedly connected with the upper side of the lower liquid shell, and the upper expansion shell is fixedly connected with the lower end surface of the mold body. The upper side of the upper expansion shell is provided with a plurality of connecting holes in communication with the rod ways. The upper side of the upper expansion shell is provided with a pair of front and rear symmetrical contact openings. The front and rear sides of the upper expansion shell are each provided with a pair of symmetrical exhaust openings. The inside of each exhaust opening is fixedly connected with a dust screen. The left and right sides of the upper expansion shell are each provided with a pair of front and rear symmetrical air inlets. The left and right sides of the air frame pipe are each connected with a pair of exhaust valve pipes. The lower end of each exhaust valve pipe is connected with an exhaust head fixedly arranged inside the air inlet. The pedestal is provided with a separate flow guide part.

[0008] Preferably, the separate flow guide part includes a separation plate fixedly arranged inside the opening of the lower liquid shell. The inside of the separation plate is provided with a plurality of guide holes in vertical alignment with the connecting holes. The inside of each guide hole is fixedly connected with a liquid passing guide. The upper side of each liquid passing guide is fixedly connected with a capsule sleeve. The upper end of each capsule sleeve is inside the connecting hole. The upper side of each capsule sleeve is fixedly connected with a sealing ring inside the rod way. The inside of the separation plate is provided with a plurality of grates. The pedestal is provided with an ejection part. The ejection part includes a flow pushing plate slidably connected with the inner wall of the lower liquid shell. The upper part of the flow pushing plate is fixedly connected with a linkage rod on the left and right sides. The upper end of each linkage rod is fixedly connected with a linkage strip penetrating through the lower liquid shell. The linkage strip is slidably connected with the guide grooves on the front and rear sides. The middle hole of the liquid passing guide is slidably connected with a jacking rod having its lower end fixedly connected with the flow pushing plate. The upper end of the jacking rod penetrates through the capsule sleeve and the connecting hole and is inside the rod way. The upper end of the jacking rod is fixedly connected with a jacking block. A spring is arranged between the jacking block and the sealing ring and is sleeved outside the jacking rod. The inside of the pedestal is provided with a pair of heat conduction parts.

[0009] Preferably, the heat-conducting part comprises heat-conducting plates fixed inside the contact port, and the upper end faces of the heat-conducting plates are all in close contact with the lower end face of the mold body, the lower side of the heat-conducting plate is fixedly connected with a plurality of heat dissipation fins arranged at equal intervals, part of the heat dissipation fins are all provided with a plurality of through air holes, the inner side of the grid port is all slidingly connected with a heat-conducting sheet whose lower end is fixedly connected with the push flow plate, and the heat-conducting sheet is arranged between each heat dissipation fin in close contact.

[0010] Preferably, the lower part of the guide groove is fixedly connected with elastic resistance pieces at the left and right openings, the elastic resistance piece is an elastic metal piece with a protruding part, the inner side of the liquid guide piece is provided with a middle hole and a plurality of liquid passing holes outside the middle hole, the sleeve is a folded ring structure with an open lower part, the sleeve is in communication with the liquid passing holes of the liquid guide piece, the diameter of the ejector rod is the same as the inner diameter of the middle hole of the liquid guide piece, and the outer end face of the heat-conducting sheet is in close contact with the inner wall of the grid port.

[0011] Preferably, the upper mold and the lower mold are arranged in an upper-lower matching mode, the upper end face of the top block is arranged in smooth transition with the inner wall of the mold cavity, the air inlet valve pipe is composed of a one-way valve and an air inlet pipe, the air outlet valve pipe is composed of an inner one-way valve and an outer extendable pipe, the air outlet heads are arranged at the left and right sides of the heat-conducting part, the air outlet heads are arranged in transverse alignment with the heat-conducting part, the heat dissipation fins away from the air outlet port are not provided with air holes, and the air outlet ports are arranged in front-rear alignment with the air holes.

[0012] Preferably, the base part is provided with a lubricating part, the lubricating part comprises a liquid tank fixed on the upper side of the lower seat plate, a connecting pipe is in communication with the right side of the liquid tank, a bidirectional liquid pump is in communication with the right end of the connecting pipe, a liquid delivery pipe is in communication with the right side of the bidirectional liquid pump, a meter is installed on the liquid delivery pipe, a shunt pipe is in communication with the other end of the liquid delivery pipe and located on the upper side of the lower liquid shell, a plurality of through pipes are in communication with the left side interfaces of the shunt pipe, a plurality of sleeve pipes located on the inner side of the upper expansion shell are installed on the through pipes, the sleeve pipes are all arranged on the outer side of each sleeve, and a control box is installed on the front side of the liquid tank.

[0013] Preferably, the control box, the meter and the bidirectional liquid pump are arranged in electrical connection, the liquid tank is composed of a lower tank body and an upper tank cover, the lower end of the sleeve pipe is fixedly connected with the upper end face of the partition plate, the upper end face of the sleeve pipe is fixedly connected with the upper inner wall of the upper expansion shell, the outer curved surface of the sealing ring is in close contact with the inner wall of the rod channel, and the inner curved surface of the sealing ring is in close contact with the outer curved surface of the ejector rod.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] 1. In the application, through the setting of the base part, the separation flow guide part, the heat conduction part, the ejection part and other structures, the base part can not only bear the separation flow guide part, the heat conduction part, the ejection part and the lower mold, but also store the refrigerant liquid. When the main frame moves, the ejection part can be displaced. The displacement of the ejection part can not only perform the ejection demolding operation, but also compress the stored refrigerant liquid. After the refrigerant liquid is received by the capsule sleeve of the separation flow guide part, it expands and unfolds to cool each rod channel. Then, the refrigerant liquid resets in the next stamping operation and conducts heat to the heat conduction part. The airflow ejected by the gas delivery part cools and dissipates heat from the heat conduction part. This operation can keep the refrigerant liquid at a relatively low temperature at all times, providing good cooling conditions for subsequent continuous cooling of the lower mold. The automobile part machining die can be cooled and cooled automatically through double cooling measures during the stamping process, without increasing power consumption and affecting the strength of the mold. This effectively solves the problem of overheating of existing automobile part machining dies during long and frequent stamping processes, which affects the demolding operation. The existing cooling methods have limited cooling performance, affect the strength of the mold, and usually require additional power consumption for cooling.

[0016] 2. In the application, through the setting of the separation flow guide part and the lubricating part, the control box can control the operation of the bidirectional liquid pump at regular intervals. The lubricating oil is drawn from the liquid tank through the connecting pipe, sent to the sleeve through the liquid delivery pipe and the shunt pipe, and then applied to the outer surface of the capsule sleeve of the separation flow guide part. Then the control box controls the bidirectional liquid pump to operate in reverse, and the lubricating oil is drawn back through the pipe, the shunt pipe and the liquid delivery pipe, and then returned to the liquid tank through the connecting pipe. The cycle is completed. In this way, the capsule sleeve surface is oiled at regular intervals. When the ejection demolding is performed, the expansion of the capsule sleeve can apply lubricating oil to the inner wall of the rod channel. This process not only improves the smoothness of the ejection demolding operation, but also greatly reduces the phenomenon of rod jamming caused by insufficient lubrication, avoids damage to the mold and parts caused by rod jamming, thereby prolonging the service life of the mold, improving production efficiency and reducing production cost. BRIEF DESCRIPTION OF DRAWINGS

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

[0018] Figure 2 It is the bottom structure schematic diagram of the application; Figure 1

[0019] Figure 3 It is the top structure schematic diagram of the application; Figure 1

[0020] Figure 4 It is the structure schematic diagram of the upper mold of the application; Figure 1

[0021] Figure 5 ​​​A sectional view of the main frame of the present application;

[0022] Figure 6 A structure diagram of the conduit of the present application;

[0023] Figure 7 A structure diagram of the gas delivery portion of the present application;

[0024] Figure 8 A structure diagram of the base portion of the present application;

[0025] Figure 9 A sectional view of the main frame of the present application; Figure 8

[0026] A sectional view of the main frame of the present application; Figure 10 Figure 8 A sectional view of the main frame of the present application;

[0027] Figure 11 A sectional view of the main frame of the present application;

[0028] Figure 12 A sectional view of the main frame of the present application;

[0029] Figure 13 A sectional view of the main frame of the present application; Figure 12

[0030] A sectional view of the main frame of the present application; Figure 14

[0031] A sectional view of the main frame of the present application; Figure 15

[0032] A sectional view of the main frame of the present application; Figure 16

[0033] A sectional view of the main frame of the present application; Figure 17

[0034] A sectional view of the main frame of the present application; Figure 18

[0035] A sectional view of the main frame of the present application; Figure 19 Figure 1 A sectional view of the main frame of the present application;

[0036] Figure 20 A sectional view of the main frame of the present application; Figure 19

[0037] A sectional view of the main frame of the present application; Figure 21 Figure 19 A sectional view of the main frame of the present application;

[0038] ​​​In the figure: 1, main frame; 11, lower seat plate; 12, upper seat plate; 13, gas conveying part; 131, gas conveying frame tube; 132, gas inlet valve tube; 133, gas outlet valve tube; 134, gas outlet head; 14, guide tube; 15, piston guide column; 16, guide groove; 17, elastic resistance member; 2, upper mold; 3, base part; 31, lower liquid shell; 32, upper expanded shell; 33, connecting hole; 34, contact opening; 35, gas outlet opening; 36, dustproof screen; 37, gas inlet opening; 4, lower mold; 41, mold body; 42, mold cavity; 43, rod way; 5, ejection part; 51, push flow plate; 52, linkage rod; 53, linkage strip; 54, ejecting rod; 55, ejecting block; 6, separation flow guiding part; 61, separation plate; 62, guide hole; 63, liquid conveying guide member; 64, capsule cover; 65, sealing ring; 66, spring; 67, grid opening; 7, heat conducting part; 71, heat conducting plate; 72, heat dissipation fin; 73, gas passage; 74, heat conducting sheet; 8, lubricating part; 81, liquid tank; 82, connecting tube; 83, bidirectional liquid pump; 84, liquid conveying tube; 85, meter; 86, shunt tube; 87, through tube; 88, sleeve tube; 89, control box. DETAILED DESCRIPTION

[0039] Please refer to Figures 1-21 The present application provides a technical solution:

[0040] The utility model provides an automobile part processing die of preventing overheating, including main frame 1, upper die 2, pedestal part 3, lower die 4, ejection part 5, separate flow guide part 6, heat conduction part 7 and lubricating part 8, main frame 1 includes lower seat plate 11, upper seat plate 12, gas conveying part 13, pipe 14, piston guide column 15, guide groove 16 and elastic resistance piece 17, lower seat plate 11 is arranged in alignment with upper seat plate 12, the downside of upper seat plate 12 is equipped with gas conveying part 13, and gas conveying part 13 includes the gas frame pipe 131 of fixed connection with upper seat plate 12, and the corner of gas frame pipe 131 is all communicated with a pair of air inlet valve pipe 132, and the lower end surface corner of gas frame pipe 131 is all communicated with pipe 14, and the inner side of pipe 14 is all slidably connected with piston guide column 15, and the lower end of piston guide column 15 is all fixedly connected with the upper end surface of lower seat plate 11, and the opposite surface of front and rear pipe 14 is all provided with guide groove 16, the downside of upper seat plate 12 is fixedly connected with upper die 2, the upside of lower seat plate 11 is fixedly connected with pedestal part 3, and the upside of pedestal part 3 is fixedly connected with lower die 4 in alignment with upper die 2, and lower die 4 includes mould body 41, and the upper portion inner side of mould body 41 is provided with mould cavity 42, and the downside of mould cavity 42 is provided with a plurality of equidistantly arranged rodways 43, pedestal part 3 includes the lower liquid shell 31 of fixed connection with lower seat plate 11, the upside of lower liquid shell 31 is fixedly connected with upper expansion shell 32, and upper expansion shell 32 is fixedly connected with the lower end surface of mould body 41, a plurality of interface holes 33 are formed in the upper side plate surface of upper expansion shell 32 and communicated with each rodway 43, a pair of front and rear symmetrical contact openings 34 are formed in the upper side plate surface of upper expansion shell 32, a pair of symmetrical exhaust openings 35 are formed in the left and right sides of upper expansion shell 32, dustproof nets 36 are fixedly connected to the inner sides of exhaust openings 35, dustproof effect is achieved, a pair of front and rear symmetrical air inlets 37 are formed in the left and right sides of upper expansion shell 32, a pair of exhaust valve pipes 133 are communicated with the left and right sides of gas frame pipe 131, exhaust heads 134 are fixedly connected to the inner sides of air inlets 37 and communicated with the lower ends of exhaust valve pipes 133, and separate flow guide part 6 is installed at pedestal part 3, so that pedestal part 3 can receive and support separate flow guide part 6 and store refrigerant liquid.The partition flow guide part 6 comprises a partition plate 61 fixed on the inner side of the opening of the lower liquid shell 31, the inner side of the partition plate 61 is provided with a plurality of guide holes 62 aligned with the through holes 33, the inner side of the guide holes 62 is fixedly connected with a liquid passing guide 63, the upper side of the liquid passing guide 63 is fixedly connected with a sleeve 64, and the upper end of the sleeve 64 is located on the inner side of the through hole 33, the upper side of the sleeve 64 is fixedly connected with a sealing ring 65 located in the rod channel 43, the inner side of the partition plate 61 is provided with a plurality of grilles 67, which can guide the refrigerant liquid flowing out of the lower liquid shell 31, the base part 3 is provided with an ejection part 5, the ejection part 5 comprises a flow pushing plate 51 in sliding connection with the inner wall of the lower liquid shell 31, the upper part of the flow pushing plate 51 is fixedly connected with a linkage rod 52 on the left and right sides, the upper end of the linkage rod 52 is fixedly connected with a linkage strip 53 penetrating through the lower liquid shell 31, the linkage strip 53 is in sliding connection with the front and rear guide grooves 16, the middle hole of the liquid passing guide 63 is in sliding connection with a jack 54 with its lower end fixedly connected with the flow pushing plate 51, and the upper end of the jack 54 penetrates through the sleeve 64 and the through hole 33 and is located on the inner side of the rod channel 43, the upper end of the jack 54 is fixedly connected with a jack block 55, which can perform ejection demolding operation and can press the stored refrigerant liquid, so that each sleeve 64 of the partition flow guide part 6 receives the refrigerant liquid, expands and unfolds to cool the rod channel 43, a spring 66 is arranged between the jack block 55 and the sealing ring 65 and sleeved on the outer side of the jack 54, which can be used for resetting the expanded sleeve 64, a pair of heat conduction parts 7 are installed on the inner side of the base part 3; the heat conduction part 7 comprises a heat conduction plate 71 fixed on the inner side of the contact port 34, and the upper end surface of the heat conduction plate 71 is in close contact with the lower end surface of the die body 41, the lower side of the heat conduction plate 71 is fixedly connected with a plurality of heat dissipation fins 72 arranged at equal intervals, some of the heat dissipation fins 72 are provided with a plurality of air holes 73 arranged in penetration, the inner side of the grille 67 is in sliding connection with a heat conduction sheet 74 with its lower end fixedly connected with the flow pushing plate 51, and the heat conduction sheet 74 is arranged between the heat dissipation fins 72 in close contact, which can make the refrigerant liquid return to the lower liquid shell 31 during stamping operation and conduct heat to the heat conduction part 7, the airflow ejected by the air conveying part 13 can dissipate heat from the heat conduction part 7, which can keep the refrigerant liquid at a relatively low temperature and provide good cooling conditions for the continuous cooling of the lower die 4.The lower part of the left and right openings of the guide groove 16 are fixedly connected with elastic resistance members 17, which are elastic metal members with protruding parts. Through this arrangement, the elastic resistance members 17 can immediately push the ejection part 5 to reset downward when the stamping operation guide pipe 14 moves downward, so that the ejection part 5 resets in time. The inner side of the liquid passing guide member 63 is provided with a middle hole and a plurality of liquid passing holes outside the middle hole. The capsule cover 64 is a folded ring cover structure with a lower opening, and the capsule cover 64 is in communication with the liquid passing holes of the liquid passing guide member 63. Through this arrangement, when the refrigerant liquid stored in the lower liquid shell 31 is compressed, it can only enter the capsule cover 64 through the liquid passing holes of the liquid passing guide member 63. The diameter of the ejector rod 54 is the same as the inner diameter of the middle hole of the liquid passing guide member 63. The outer end face of the heat conduction fin 74 is in close contact with the inner wall of the grid 67. Through this arrangement, it is avoided that the refrigerant liquid in the lower liquid shell 31 leaks from the grid 67 and the middle hole of the liquid passing guide member 63. The upper die 2 and the lower die 4 are arranged in an upper and lower matching manner. The upper end face of the ejector block 55 is smoothly transitioned with the inner wall of the mold cavity 42. The air inlet valve pipe 132 is composed of a one-way valve and an air inlet pipe. The air outlet valve pipe 133 is composed of an inner one-way valve and an outer extendable pipe. Through this arrangement, the air inlet and air outlet directions of the air conveying part 13 are determined. The air outlet heads 134 are arranged on the left and right sides of the heat conduction part 7. The air outlet heads 134 are horizontally aligned with the heat conduction part 7. The heat dissipation fins 72 away from the air outlet port 35 are not provided with air holes 73. The air outlet ports 35 are arranged in front of and behind the air holes 73. Through this arrangement, the gas discharged from the air outlet heads 134 into the upper expansion shell 32 will directly blow on each heat dissipation fin 72, so that the airflow enters between the heat dissipation fins 72 from both sides, takes away the heat, and then is discharged from each air hole 73, and then is discharged from the air outlet port 35 opposite to the air hole 73. In this way, the heat dissipation fins 72 are cooled and heat is dissipated. This operation can keep the refrigerant liquid at a relatively low temperature, providing good cooling conditions for the continuous cooling of the lower die 4.

[0041] As Figure 1 , Figure 3 , Figure 9 , Figure 10 , Figure 17As shown, the base part 3 is provided with a lubricating part 8, which includes a liquid tank 81 fixed on the upper side of the lower seat plate 11, a connecting pipe 82 communicated with the right side of the liquid tank 81, a bidirectional liquid pump 83 communicated with the right end of the connecting pipe 82, a liquid delivery pipe 84 communicated with the right side of the bidirectional liquid pump 83, a meter 85 installed on the liquid delivery pipe 84, a shunt pipe 86 communicated with the other end of the liquid delivery pipe 84 and located on the upper side of the lower liquid shell 31, a plurality of through pipes 87 communicated with the left side interface of the shunt pipe 86, a plurality of sleeve pipes 88 installed on the inner side of the upper expansion shell 32 and sleeved on the outer side of each capsule sleeve 64, a control box 89 installed on the front side of the liquid tank 81, and the control box 89 can control the operation of the bidirectional liquid pump 83 in a timed manner through the above arrangement. The lubricating oil is pumped from the liquid tank 81 through the connecting pipe 82, and then sent to the sleeve pipe 88 through the liquid delivery pipe 84, the shunt pipe 86 and the through pipe 87. After the lubricating oil reaches the sleeve pipe 88, it will be applied to the outer surface of the capsule sleeve 64. Then, the control box 89 controls the bidirectional liquid pump 83 to operate in reverse, and the lubricating oil is pumped back through the through pipe 87, the shunt pipe 86 and the liquid delivery pipe 84, and then flows back to the liquid tank 81 through the connecting pipe 82, completing the circulation. In this way, the surface of the capsule sleeve 64 is coated with oil at regular intervals, and the expansion of the capsule sleeve 64 can apply lubricating oil to the inner wall of the rod channel 43 during ejection and demolding. This process not only improves the smoothness of the ejection and demolding operation, but also greatly reduces the phenomenon of rod jamming caused by insufficient lubrication. The control box 89 is electrically connected with the meter 85 and the bidirectional liquid pump 83, the liquid tank 81 is composed of a lower tank body and an upper tank cover, and the staff can supplement the lubricating oil of the liquid tank 81 through the above arrangement. The lower end of the sleeve pipe 88 is fixedly connected with the upper end surface of the partition plate 61, and the upper end surface of the sleeve pipe 88 is fixedly connected with the upper inner wall of the upper expansion shell 32. The outer curved surface of the sealing ring 65 is in close contact with the inner wall of the rod channel 43, and the inner curved surface of the sealing ring 65 is in close contact with the outer curved surface of the ejector rod 54. Through the above arrangement, the lubricating oil in the sleeve pipe 88 can be prevented from leaking to the outside of the sleeve pipe 88.

[0042] Work flow: the heat dissipation cooling operation of the automobile parts processing die to prevent overheating is as follows, note one: the equipment is powered by external power supply, and is controlled through the control box 89; note two: the lower protruding part of the upper die 2 and the die cavity 42 of the lower die 4 are matched with each other, and the lower protruding part of the upper die 2 and the die cavity 42 of the lower die 4 can be adaptively adjusted and modified according to the shape of the automobile parts to be processed; note three: the inside of the lower liquid shell 31 is provided with refrigerant liquid, and the refrigerant liquid is on the upper side of the push flow plate 51, and the capsule sleeve 64 is in a contracted state; note four: the equipment is installed on the external punch machine, and the control of the external punch machine is realized through the controller on the body of the punch machine; note five: the lubricating oil is pre-stored in the liquid tank 81; stamping operation: the equipment needs to be used in cooperation with the external punch machine, and the lower seat plate 11 needs to be fixed on the workbench of the punch machine in advance, and the upper seat plate 12 is fixed on the punch head of the punch machine, and then the material plate is placed between the upper die 2 and the lower die 4, at this time, the downward movement of the punch head of the punch machine can drive the upper seat plate 12 and the upper die 2 to displace downward to perform the stamping operation on the workpiece, so that the material plate is pressed into the die cavity 42 of the lower die 4, and the automobile sheet metal part with the required shape is obtained, and the stamping operation is completed; ejection demolding operation: first, the punch head of the punch machine needs to be controlled to move upward, this action can drive the upper seat plate 12 to move upward and reset, with the displacement of the upper seat plate 12, the upper die 2 will also move upward, so as to separate from the matching state with the lower die 4, at this time, the upper die 2 no longer extrudes the automobile sheet metal part formed by stamping, so that the sheet metal part can be exposed from the die cavity 42 of the lower die 4, which fully prepares for the subsequent sheet metal demolding operation and the safety of the staff taking the plate; at the same time, the upward movement of the upper seat plate 12 also drives the air inlet frame tube 131 of the air inlet part 13 and each conduit 14 to move upward, the upward displacement of each conduit 14 will cause the relative displacement of the piston guide column 15, so as to draw air outside through the air inlet frame tube 131 and each air inlet valve tube 132, and store the gas in the inside of the conduit 14, which prepares for the exhaust in the subsequent next stamping operation; when each conduit 14 moves up to be limited by the piston guide column 15, it indicates that the conduit 14 has been displaced to the maximum value, and the guide groove 16 moving upward with the conduit 14 will lift the linkage bar 53 of the ejection part 5, in this process, the linkage bar 53 will pass through a group of elastic resistance members 17, and be located on the lower side of the elastic resistance members 17 (such as Figure 20The upper movement of the linkage bar 53 will drive the push flow plate 51 to move up through the linkage rod 52, and then drive each top rod 54 and top block 55 to move upward, and finally the top block 55 is pushed out from the upper part of the rod channel 43, and the automobile sheet metal part in the mold cavity 42 is pushed out from the lower mold 4, and the ejection demolding operation is completed; the heat dissipation cooling operation: during the ejection demolding operation, the upward movement of the push flow plate 51 will produce a squeezing effect on the refrigerant liquid located on its upper side, and this squeezing effect will force the refrigerant liquid in the lower liquid shell 31 to flow into each bladder sleeve 64 through each liquid guide 63. With the gradual increase of the refrigerant liquid in the bladder sleeve 64, the bladder sleeve 64 will expand and unfold upward under the guidance of the sealing ring 65 and the top rod 54, and the unfolded bladder sleeve 64 will pass through and fill the entire rod channel 43, and force the spring 66 to contract; at this time, the refrigerant liquid in the bladder sleeve 64 can effectively exchange heat with the rod channel 43 and the top rod 54, and this heat exchange process can cool each rod channel 43 in the lower mold 4, thereby avoiding the rod jamming in the subsequent ejection demolding operation. Through the above operation, the cooling treatment of the inside of the lower mold 4 is completed, so the device can cool the inside of the lower mold 4 through the original rod channel 43 without needing to open a new refrigerant liquid passage; at the same time, the heat of the mold body 41 of the lower mold 4 can also be transmitted to the heat conduction part 7 through conduction, and then dissipated through the heat conduction part 7, realizing the heat dissipation and cooling of the surface of the lower mold 4. Through this double cooling measure, the overheat of the automobile part processing die during use can be effectively avoided, and the normal operation of the die and the quality of part processing are ensured; the heat dissipation operation in the next stamping action: after the formed and demolded automobile part is taken down, a new material plate needs to be placed between the upper mold 2 and the lower mold 4, and then the stamping machine equipment is controlled to start the stamping action again. At this time, the upper seat plate 12 will move downward together with the upper mold 2 to perform the stamping operation on the newly placed material plate, so that it is pressed into the mold cavity 42 of the lower mold 4, thereby obtaining a new automobile sheet metal part with the required shape; at the same time, the downward movement of the upper seat plate 12 will drive each conduit 14 to move downward through the air passage frame tube 131, and the downward movement of the conduit 14 will be limited by the elastic resistance piece 17, directly pushing the linkage bar 53 and the linkage rod 52 to move downward and reset. This process will further push the push flow plate 51, the top rod 54, the top block 55, and the heat conduction fin 74 to move downward and reset. The downward reset of the push flow plate 51 will increase the distance between it and the partition plate 61, thereby making the lower liquid shell 31 regain the liquid storage capacity. At this time, each spring 66 will reset and expand to squeeze the previously expanded bladder sleeve 64, so that the refrigerant liquid in the bladder sleeve 64 flows back to the lower liquid shell 31 with the heat of the lower mold 4, and the refrigerant liquid in the lower liquid shell 31 will contact the heat conduction fin 74 to conduct heat to the heat dissipation fin 72 through the heat conduction fin 74;With the continuous downward movement of the guide pipe 14, the linkage strip 53 will be forced to extrude the elastic resistance 17, and then the linkage strip 53 will displace upward in the guide groove 16 beyond the elastic resistance 17, at this time, the downward movement of the guide pipe 14 will cause the relative displacement of the piston guide column 15, so that the gas stored in the guide pipe 14 is discharged into the upper expansion shell 32 through the venting frame pipe 131, the exhaust valve pipe 133 and the exhaust head 134, which will directly blow on each heat dissipation fin 72, and the airflow will enter between the heat dissipation fins 72 from both sides, and then be discharged from the exhaust port 35 after taking away the heat; in this way, the heat dissipation fin 72 can be cooled once for each stamping operation of the equipment, which can keep the refrigerant liquid at a low temperature all the time, providing good cooling conditions for the continuous cooling of the lower die 4, which realizes the automatic cooling of the automobile part processing die during the stamping process through double cooling measures, without increasing power consumption and affecting the strength of the die, which effectively solves the problem that the existing automobile part processing die is prone to overheating during long-time and frequent stamping, thereby affecting the demolding operation, and the existing cooling method has limited cooling performance, affects the strength of the die, and usually needs to increase the power consumption for cooling; lubrication operation: the control box 89 can control the operation of the bidirectional liquid pump 83 at regular intervals, after the bidirectional liquid pump 83 is started, the lubricating oil is extracted from the liquid tank 81 through the connecting pipe 82, and then is delivered to each sleeve pipe 88 through the liquid delivery pipe 84 and the shunt pipe 86, in the delivery process, the amount of lubricating oil can be accurately controlled by the meter 85 to ensure that the amount of lubricating oil delivered each time is consistent; when the lubricating oil reaches each sleeve pipe 88, it will come into contact with the capsule 64 in the contracted state and be applied to the outer surface of the capsule 64, at this time, the control box 89 controls the bidirectional liquid pump 83 to operate in reverse again, and the lubricating oil in the sleeve pipe 88 is pumped back through the pipe 87, the shunt pipe 86 and the liquid delivery pipe 84, and then is returned to the liquid tank 81 through the connecting pipe 82, completing a cycle; through the reciprocating circulation of the lubricating oil, the surface of the contracted capsule 64 can be coated with lubricating oil at regular intervals, so that the lubricating oil can be applied to the inner wall of the rod way 43 every time the capsule 64 expands and unfolds during the ejection and demolding operation, which not only improves the smoothness of the ejection and demolding operation, but also greatly reduces the phenomenon of rod jamming caused by insufficient lubrication, avoids damage to the die and parts caused by rod jamming, thereby prolonging the service life of the die, improving the production efficiency and reducing the production cost.

[0043] The principles and implementation manners of the present application are described by using specific examples in the present application, and the above examples are only used to help understand the method of the present application and its core idea. The above is only the preferred implementation manner of the present application, and it should be pointed out that, due to the limitedness of the expression, there are objectively infinite specific structures, and for ordinary skilled persons in the technical field, some improvements, refinements or changes can be made without departing from the principle of the present application, and the above technical features can also be combined in a proper manner; the improvements, refinements, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present application.

Claims

1. An automobile part processing mold for preventing overheating, comprising a main frame (1), an upper mold (2), a base portion (3), and a lower mold (4), characterized in that: The main frame (1) includes a lower seat plate (11), an upper seat plate (12), a gas conveying part (13), a guide pipe (14), a piston guide column (15), a guide groove (16) and an elastic resistance piece (17), the lower seat plate (11) and the upper seat plate (12) are arranged in vertical alignment, the lower side of the upper seat plate (12) is provided with the gas conveying part (13), the gas conveying part (13) includes a gas frame pipe (131) fixedly connected with the upper seat plate (12), a pair of gas inlet valve pipes (132) are communicated with the corners of the gas frame pipe (131), a guide pipe (14) is communicated with the lower end face corners of the gas frame pipe (131), the inner side of the guide pipe (14) is slidably connected with the piston guide column (15), the lower end of the piston guide column (15) is fixedly connected with the upper end face of the lower seat plate (11), the opposite faces of the guide pipe (14) are provided with the guide groove (16), the lower side of the upper seat plate (12) is fixedly connected with an upper die (2), the upper side of the lower seat plate (11) is fixedly connected with a base part (3), the upper side of the base part (3) is fixedly connected with a lower die (4) vertically aligned with the upper die (2), the lower die (4) includes a die body (41), a die cavity (42) is formed in the upper inner side of the die body (41), a plurality of rod channels (43) are equidistantly arranged on the lower side of the die cavity (42), the base part (3) includes a lower liquid shell (31) fixedly connected with the lower seat plate (11), the upper side of the lower liquid shell (31) is fixedly connected with an upper expansion shell (32), the upper expansion shell (32) is fixedly connected with the lower end face of the die body (41), a plurality of connecting holes (33) are formed in the upper side plate face of the upper expansion shell (32) and communicated with the rod channels (43), a pair of contact openings (34) are symmetrically arranged on the front and back of the upper side plate face of the upper expansion shell (32), a pair of exhaust openings (35) are symmetrically arranged on the left and right sides of the upper expansion shell (32), a dust screen (36) is fixedly connected in the inner side of the exhaust opening (35), a pair of air inlet openings (37) are symmetrically arranged on the left and right sides of the upper expansion shell (32), a pair of exhaust valve pipes (133) are communicated with the left and right sides of the gas frame pipe (131), an exhaust head (134) is fixedly connected in the inner side of the air inlet opening (37) and communicated with the lower end of the exhaust valve pipe (133), and a separation flow guide part (6) is arranged on the base part (3).

2. The overheat-preventing mold for processing an automobile part according to claim 1, wherein: The separation flow guide part (6) includes a separation plate (61) fixed on the inside of the opening of the lower liquid shell (31), the inside of the separation plate (61) is provided with a plurality of guide holes (62) aligned with the through holes (33) above and below, the inside of the guide hole (62) is fixedly connected with a liquid passing guide (63), the upper side of the liquid passing guide (63) is fixedly connected with a sleeve (64), and the upper end of the sleeve (64) is inside the through hole (33), the upper side of the sleeve (64) is fixedly connected with a sealing ring (65) in the rod channel (43), the inside of the separation plate (61) is provided with a plurality of grilles (67), the base part (3) is provided with an ejection part (5), the ejection part (5) includes a flow pushing plate (51) slidingly connected with the inner wall of the lower liquid shell (31), the upper part of the flow pushing plate (51) is fixedly connected with a linkage rod (52) on the left and right sides, the upper end of the linkage rod (52) is fixedly connected with a linkage strip (53) penetrating through the lower liquid shell (31), the linkage strip (53) is slidingly connected with the guide groove (16) on the front and back sides, the middle hole of the liquid passing guide (63) is slidingly connected with a jack (54) whose lower end is fixedly connected with the flow pushing plate (51), and the upper end of the jack (54) is inside the sleeve (64) and the through hole (33) in the rod channel (43), the upper end of the jack (54) is fixedly connected with a jack block (55), the jack block (55) and the sealing ring (65) are provided with a spring (66) sleeved outside the jack (54), and the inside of the base part (3) is provided with a pair of heat conduction parts (7).

3. The overheat-preventing mold for processing an automobile part according to claim 2, wherein: The heat conduction part (7) includes a heat conduction plate (71) fixed on the inside of the contact hole (34), and the upper end face of the heat conduction plate (71) is in close contact with the lower end face of the mold body (41), the lower side of the heat conduction plate (71) is fixedly connected with a plurality of heat dissipation fins (72) arranged at equal intervals, part of the heat dissipation fins (72) are provided with a plurality of air holes (73) penetrating through, the inside of the grille (67) is slidingly connected with a heat conduction sheet (74) whose lower end is fixedly connected with the flow pushing plate (51), and the heat conduction sheet (74) is arranged between each heat dissipation fin (72) in close contact.

4. The overheat-preventing mold for processing an automobile part according to claim 3, wherein: The lower part of the guide groove (16) is fixedly connected with an elastic resistance piece (17) at the left and right openings, the elastic resistance piece (17) is an elastic metal piece with a protruding part, the inside of the liquid passing guide (63) is provided with a middle hole and a plurality of liquid passing holes outside the middle hole, the sleeve (64) is a folded ring sleeve structure with a lower opening, the sleeve (64) is in communication with the liquid passing holes of the liquid passing guide (63), the diameter of the jack (54) is the same as the inner diameter of the middle hole of the liquid passing guide (63), and the outer end face of the heat conduction sheet (74) is in close contact with the inner wall of the grille (67).

5. The overheat-preventing mold for processing an automobile part according to claim 3, wherein: The upper die (2) and the lower die (4) are arranged in an upper-lower matching mode, upper end faces of the top blocks (55) are arranged in a smooth transition mode with inner walls of the die cavities (42), the air inlet valve pipes (132) are composed of one-way valves and air inlet pipes, the air outlet valve pipes (133) are composed of inner one-way valves and outer extendable pipes, the air outlet heads (134) are arranged on left and right sides of the heat conduction portions (7), the air outlet heads (134) are arranged in a transverse alignment mode with the heat conduction portions (7), the heat dissipation fins (72) away from the air outlet ports (35) are not provided with air holes (73), and the air outlet ports (35) are arranged in a front-rear alignment mode with the air holes (73).

6. The overheat-preventing mold for processing an automobile part according to claim 3, wherein: The base portion (3) is provided with a lubricating portion (8), the lubricating portion (8) comprises a liquid tank (81) fixed on the upper side of the lower seat plate (11), the right side of the liquid tank (81) is communicated with a connecting pipe (82), the right end of the connecting pipe (82) is communicated with a bidirectional liquid pump (83), the right side of the bidirectional liquid pump (83) is communicated with a liquid delivery pipe (84), the liquid delivery pipe (84) is provided with a meter (85), the other end of the liquid delivery pipe (84) is communicated with a shunt pipe (86) arranged on the upper side of the lower liquid shell (31), the left side interface of the shunt pipe (86) is communicated with a plurality of through pipes (87), the through pipes (87) are provided with a plurality of sleeve pipes (88) arranged on the inner sides of the upper expansion shells (32), the sleeve pipes (88) are arranged on the outer sides of the capsule sleeves (64), and the front side of the liquid tank (81) is provided with a control box (89).

7. A mold for processing an automobile part according to claim 6, wherein: The control box (89) is electrically connected with the meter (85) and the bidirectional liquid pump (83), the liquid tank (81) is composed of a lower tank body and an upper tank cover, lower ends of the sleeve pipes (88) are fixedly connected with upper end faces of the partition plates (61), upper end faces of the sleeve pipes (88) are fixedly connected with upper inner walls of the upper expansion shells (32), an outer curved surface of the sealing ring (65) is attached to an inner wall of the rod channel (43), and an inner curved surface of the sealing ring (65) is attached to an outer curved surface of the ejector rod (54).

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