Automobile part machining die

Abstract

The utility model provides an automobile part machining die, and belongs to the field of automobile part machining, the automobile part machining die comprises a base table (10), a lower die (20), a door-shaped support (30), an upper die (40), a hole forging assembly and a discharging assembly, the lower die (20) is arranged on the end face of the base table (10), a groove (21) is formed in the end face of the lower die (20), a through hole (22) is formed in the bottom face of the groove (21), and a blanking hole (11) corresponding to the through hole (22) is formed in the base table (10); a door-shaped support (30) is arranged on the end face of the base table (10), an upper die (40) is arranged on the top face of the door-shaped support (30) through a lifting assembly, and the upper die (40) is provided with a hole forging assembly corresponding to the through hole (22). A discharging assembly is arranged on the lower die (20) and comprises an annular plate (61), a plurality of ejector rods (62), a plurality of springs (63) and a lifting plate (64). The die is used for forging a flange plate, effective demolding of a forged part and the die cavity can be achieved, forging time consumption is reduced, and labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile part processing, and specifically relates to an automobile part processing die. BACKGROUND

[0002] The flange production process includes forging, casting, cutting and rolling, etc. In the forging process, a forging die is needed. The high-temperature raw material obtained by heating is plastically deformed in the forging die under the action of external force, thereby obtaining a part with the required shape and size. At the same time, the flange is suitable for ring-shaped parts that connect each other between shaft-shaft and shaft-pipe. In the forging process, the middle part usually needs to be punched to meet the connection and cooperation of shaft and pipe parts. Chinese patent document CN214442732U discloses a large-diameter flange plate forging die for factories. The die is connected by the meshing of the stamping die block and the adjusting disc. When the motor is turned on to rotate the adjusting disc, the stamping die block moves up and down, which facilitates the stamping processing of the die seat. The die seat forms a clamping type sliding structure with the fixed mounting seat, which facilitates cyclic processing and effectively improves the processing efficiency of the device. The second limiting rod and the second spring form a nested sliding structure on the fixed mounting box, which can provide damping force for the fixed mounting box when it is subjected to downward impact force, avoiding damage to the device. The movable block forms a sliding structure on the first limiting rod, which can provide a damping effect under the action of the first spring when subjected to vibration, effectively improving the service life of the device. However, during the forging and cooling forming process of the high-temperature raw material in the forging die (i.e. the die seat), the raw material is easily adhered to the inside of the die due to the action of heat and extrusion pressure, which makes it difficult to effectively separate the formed part from the die cavity, increases the forging time and labor cost, and affects the subsequent use of the forging die. SUMMARY

[0003] In view of the problems existing in the prior art, the purpose of the utility model is to provide an automobile part processing die. The die is used for the forging of automobile parts-flange plates, can effectively demold the formed parts from the die cavity after forging, thereby reducing the forging time and labor cost during demolding, and ensuring the smoothness of the part processing process.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] The application discloses an automobile part machining die, which comprises a base, a lower die, a door-shaped support, an upper die, a forging hole assembly and a discharging assembly, the lower die is arranged at the middle part of the end face of the base, a groove is arranged at the end face of the lower die, a through hole coaxial with the groove is arranged at the middle part of the bottom surface of the groove, a blanking hole is arranged at the base corresponding to the through hole, and the blanking hole and the through hole are connected through a communication pipe; the door-shaped support is arranged at the end face of the base and located outside the lower die, the upper die is arranged at the top surface of the door-shaped support through a lifting assembly, and the forging hole assembly is arranged at the upper die corresponding to the through hole; the discharging assembly is arranged on the lower die and comprises a ring plate, a plurality of ejector rods and springs and a lifting plate, a ring groove coaxial with the through hole is arranged at the bottom surface of the groove and located outside the through hole, the ring plate is slidably connected in the ring groove, a plurality of ejector rods are evenly arranged on the bottom surface of the ring plate around the central axis of the ring plate, the ends of the plurality of ejector rods away from the ring plate are fixedly connected with the same lifting plate arranged on the lower side of the base in sequence after penetrating through the bottom surface of the lower die and the base, and the springs are arranged between the lifting plate and the bottom surface of the base and located outside the ejector rods.

[0006] Based on further optimization of the above scheme, the outer circle of the bottom surface of the base is supported by a plurality of evenly distributed support frames.

[0007] Based on further optimization of the above scheme, a plurality of rubber blocks are evenly arranged on the outer circle of the bottom surface of the lower die around the central axis of the lower die, and the bottom surface of the rubber block is fixedly connected with the end face of the base; the connection between the lower die and the base is realized through the rubber blocks.

[0008] Based on further optimization of the above scheme, the top end of the communication pipe is fixedly connected with the bottom surface of the lower die, the lower end of the communication pipe is slidably connected with the inner wall of the blanking hole, and the inner wall of the communication pipe is in a funnel-shaped structure with the upper part being larger and the lower part being smaller.

[0009] Based on further optimization of the above scheme, the lifting assembly comprises a main gear and a plurality of telescopic components, the main gear is rotatably arranged at the middle part of the top surface of the door-shaped support through a gear shaft, the plurality of telescopic components are evenly arranged around the central axis of the main gear, and the telescopic components comprise a screw rod, a sleeve and a secondary gear, the top end of the screw rod is rotatably connected with the top surface of the door-shaped support, the bottom end of the sleeve is fixedly connected with the end face of the upper die, the bottom end of the screw rod is located in the top end of the sleeve and the outer wall of the screw rod is threadedly connected with the inner wall of the sleeve, and the outer wall of the top end of the screw rod is fixedly sleeved with the secondary gear corresponding to the main gear, and the secondary gear is engaged with the main gear.

[0010] Based on further optimization of the above scheme, the forging hole assembly comprises an outer shell, a hydraulic telescopic rod, a fixing frame and a forging hammer, a through hole is arranged at the upper die corresponding to the through hole, the outer shell is arranged between the through hole and the telescopic component at the end face of the upper die, the hydraulic telescopic rod is arranged in the inner wall of the outer shell through the fixing frame, the forging hammer is arranged at the output end of the hydraulic telescopic rod, and the outer wall of the forging hammer is slidably connected with the inner wall of the through hole.

[0011] Further optimization based on the above scheme, the bottom surface of the base and outside the blanking hole is fixedly provided with a guide pipe, the inner wall of the guide pipe is provided as a funnel-shaped structure with the upper part larger and the lower part smaller; the middle part of the lifting plate is penetrated by the guide pipe and is slidingly connected; the lower side of the guide pipe is provided with a collecting groove for collecting the waste after forging.

[0012] Further optimization based on the above scheme, the lifting plate is driven to lift by a plurality of circulating assemblies, the circulating assembly comprises a rotating frame, a rotating shaft and a cam, the rotating frame is fixedly arranged on the bottom surface of the base corresponding to the outer circle of the lifting plate, and the bottom of the rotating frame is rotatably provided with the rotating shaft, the rotating shaft is fixedly sleeved with the cam, and the bottom end of the cam is in contact with the top surface of the lifting plate.

[0013] The following are the technical effects possessed by the present application:

[0014] The unloading assembly composed of the annular plate, the plurality of ejector rods and the spring and the lifting plate is used to make the lifting plate, the ejector rod and the annular plate reciprocate up and down by the elastic force of the spring, so that the annular plate vibrates during the reciprocation to demold the molded part from the groove, effectively avoiding the problem that the molded part is adhered to the groove due to high temperature and repeated extrusion force and is difficult to unload. Meanwhile, the uniform force on the bottom surface of the molded part during unloading is ensured by the annular plate, and the problem of deformation of the bottom surface of the part caused by the direct action of the ejector rod is avoided. In addition, the upper die and the lower die are first combined and then forged by the cooperation of the upper die, the lifting assembly and the forging hole assembly, the part is stably positioned and limited by the upper die and the lower die during the forging process, the problems of part deviation and upward jumping caused by repeated stamping during the forging process are avoided, the forging precision is ensured, and safety hazards (for example, the high-temperature raw material jumps out of the groove during the forging process, causing injury to the operators around the equipment or damage to other equipment) are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the machining die in the embodiment of the present application.

[0016] Figure 2 It is a structural schematic view of the machining die in the embodiment of the present application. Figure 1

[0017] Figure 3 It is a structural schematic view of the machining die in the embodiment of the present application. Figure 1

[0018] ​​Wherein, 10, base; 11, blanking hole; 12, support frame; 13, communication pipe; 14, guide pipe; 15, collection groove; 20, lower mold; 21, groove; 22, through hole; 23, annular groove; 24, rubber block; 30, door-shaped support; 40, upper mold; 41, main gear; 42, screw; 43, sleeve; 44, auxiliary gear; 51, shell; 52, hydraulic telescopic rod; 53, fixing frame; 54, forging hammer; 61, annular plate; 62, ejector rod; 63, spring; 64, lifting plate; 641, rotating frame; 642, rotating shaft; 643, cam. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0020] Embodiment 1

[0021] An automobile part machining mold, as shown in the drawings, comprises a base 10, a lower mold 20, a door-shaped support 30, an upper mold 40, a forging hole assembly and a discharging assembly. Figure 1 The outer circle of the bottom surface of the base 10 is supported by a plurality of evenly distributed support frames 12 (the number of the support frames 12 is set according to the actual situation, and is generally four). The lower mold 20 is arranged at the middle part of the end surface of the base 10, specifically, a plurality of rubber blocks 24 (the number of the rubber blocks 24 is set according to the actual situation, and is generally not less than six, see the drawings) are evenly arranged on the outer circle of the bottom surface of the lower mold 20 and around the middle axis thereof (ten rubber blocks 24 are arranged in this embodiment), and the bottom surface of the rubber block 24 is fixedly connected with the end surface of the base 10. The connection between the lower mold 20 and the base 10 is realized through the rubber blocks 24 (at the same time, the buffering and damping effects are achieved). The end surface of the lower mold 20 is provided with a groove 21, and a coaxial through hole 22 is arranged in the middle part of the bottom surface of the groove 21 (see the drawings). The base 10 is provided with a blanking hole 11 corresponding to the through hole 22 (that is, the blanking hole 11 and the through hole 22 are coaxial, and their outer diameters are consistent), and the blanking hole 22 and the through hole 11 are connected through a communication pipe 13. The top end of the communication pipe 13 is fixedly connected with the bottom surface of the lower mold 20, the lower end outer wall of the communication pipe 13 is slidably connected with the inner wall of the blanking hole 11 (so as to ensure that the communication pipe 13 will not be extruded and damaged in the buffering and damping process), and the inner wall of the communication pipe 13 is arranged in a funnel-shaped structure with the upper part larger and the lower part smaller (to ensure the smoothness of blanking, see the drawings). The inner diameter of the communication pipe 13 is consistent with the inner diameter of the through hole 22, and the outer diameter of the communication pipe 13 is consistent with the inner diameter of the blanking hole 11. Figure 3 Figure 1 Figure 1

[0022] ​​​The door-shaped support 30 is arranged on the end surface of the base 10 and outside the lower die 20, the top surface of the door-shaped support 30 is provided with the upper die 40 through the lifting assembly (a protruding part is arranged on the bottom surface of the upper die 40 corresponding to the groove 21, as shown in Figure 1 The upper die 40 is provided with the forging hole assembly corresponding to the through hole 22; the lifting assembly comprises the main gear 41 and a plurality of telescopic members, the main gear 41 is rotatably arranged in the middle part of the top surface of the door-shaped support 30 through the gear shaft (as shown in Figure 1 The gear shaft is driven to rotate by the motor fixedly arranged on the top surface of the door-shaped support 30), and the plurality of telescopic members are uniformly arranged around the central axis of the main gear 41 (the number of the telescopic members is set according to the actual situation, generally 3-6 groups, as shown in Figure 2 In this embodiment, four telescopic members are adopted), comprising the screw rod 42, the sleeve 43 and the auxiliary gear 44, the top end of the screw rod 42 is rotatably connected with the top surface of the door-shaped support 30, the bottom end of the sleeve 43 is fixedly connected with the end surface of the upper die 40 (the cross section of the sleeve 43 is any one of a circle or a square, as shown in Figure 2 In this embodiment, a circle is adopted), the bottom end of the screw rod 42 is located in the top end of the sleeve 43, and the outer wall of the screw rod 42 is threadedly connected with the inner wall of the sleeve 43; the outer wall of the top end of the screw rod 42 is fixedly sleeved with the auxiliary gear 44 corresponding to the main gear 41, and the auxiliary gear 44 is engaged with the main gear 41. The forging hole assembly comprises the housing 51, the hydraulic telescopic rod 52, the fixing frame 53 and the forging hammer 54, the end surface of the upper die 40 corresponding to the through hole 22 is provided with the housing 51 between the through hole and the telescopic member (as shown in Figure 1 The inner wall of the housing 51 is provided with the hydraulic telescopic rod 52 through the fixing frame 53 (the fixing frame 53 is composed of a plurality of fixing rods, as shown in Figure 2 In this embodiment, five fixing rods are adopted; at the same time, the hydraulic telescopic rod 52 is controlled through the hydraulic cylinder fixedly arranged in the inner cavity of the housing 51), the output end (i.e. Figure 1 The bottom shown in the figure) of the hydraulic telescopic rod 52 is provided with the forging hammer 54, and the outer wall of the forging hammer 54 is slidably connected with the inner wall of the through hole (and initially, the bottom end of the forging hammer 54 is in the same plane with the bottom surface of the upper die 40).

[0023] The unloading assembly is arranged on the lower die 20, comprising the annular plate 61, a plurality of ejector rods 62 and springs 63 (the number of the ejector rods 62 and the springs 63 corresponds, generally 4-8 groups, as shown in Figure 3As shown, this embodiment uses 6 push rods 62 and a lifting plate 64. A coaxial annular groove 23 is opened on the bottom surface of the groove 21 and on the outer ring of the through hole 22. The annular plate 61 is slidably engaged in the annular groove 23. Multiple push rods 62 are evenly arranged on the bottom surface of the annular plate 61 around its central axis. The ends of the multiple push rods 62 away from the annular plate 61 pass through the bottom surface of the lower mold 20 and the base 10 in sequence, and are fixedly connected to the same lifting plate 64 set on the lower side of the base 10. A spring 63 is set between the lifting plate 64 and the bottom surface of the base 10 and on the outer ring of the push rods 62.

[0024] The base 10 has a guide tube 14 fixedly installed on its bottom surface and around the outer ring of the discharge hole 11. The inner wall of the guide tube 14 is a funnel-shaped structure that is wider at the top and narrower at the bottom (see [reference]). Figure 1 (As shown); the lifting plate 64 is slidably connected to the conduit 14 through its middle section (i.e., the lifting plate 64 is slidably disposed on the outer wall of the conduit 14); a collection groove 15 is provided on the lower side of the conduit 14 for collecting forging waste. The lifting plate 64 is driven to rise and fall by multiple sets of circulation components (the number of circulation components is set according to the actual situation; in this embodiment, two are set, such as...). Figure 1 As shown, the circulating components are symmetrically distributed on both sides of the upper end of the lifting plate 64. The rotating frame 641, the rotating shaft 642, and the cam 643 are fixedly mounted on the bottom surface of the base 10 corresponding to the outer ring of the lifting plate 64. The rotating shaft 642 is rotatably mounted on the bottom of the rotating frame 64 (the rotating shaft 642 can be controlled to rotate by a motor mounted on the bottom surface of the base 10). The cam 643 is fixedly sleeved on the outer wall of the rotating shaft 642 and the bottom end of the cam 643 is in contact with the top surface of the lifting plate 64.

[0025] Working principle:

[0026] In use, the heated raw material is first placed in the groove, and the main gear 41 is started to rotate. The main gear 41 drives the screw 42 to rotate through the secondary gear 44, thereby causing the corresponding sleeve 43 to move down. The sleeve 43 pushes the lower mold 40 to move down synchronously, realizing the cooperation between the protrusion and the groove 21, and thus extruding and forming the raw material in the groove 21. Then, the hydraulic telescopic rod 52 is started to drive the forging hammer 54 to move up and down reciprocally, thereby forging and punching the extruded material. During this process, the forming cavity formed by the protrusion and the groove 21 restricts the material, so that it will not have large deformation or displacement problems during repeated forging, thus ensuring the accuracy of forging and punching. After forging is completed, the scrap falls into the collection tank 15 through the through hole 22, the connecting pipe 13, the discharge hole 11 and the guide tube 14 to cool the lower mold 20, and then the forging assembly and the upper mold 40 are reset in sequence. Finally, the cam 643 is started to rotate through the rotating shaft 642 (i.e., Figure 1The left cam 643 rotates clockwise and the right cam 643 rotates counterclockwise, the lifting plate 64 is lifted down, the spring 63 is further stretched, the top rod 42 drives the annular plate 61 to move down, and with the continuous rotation of the cam 643, the lifting plate 64 moves up due to the force of the spring 63, thereby forming an upward ejection force on the cooled formed part, and sequentially reciprocating, the formed part is continuously vibrated, thereby effectively achieving unloading and avoiding the adhesion between the part and the groove 21.

[0027] Embodiment 2:

[0028] As another preferred embodiment of the present application, on the basis of the scheme of embodiment 1, in order to ensure the stable lifting of the upper die 40 and avoid its deviation during lifting, thereby affecting the film and forging, the sliding block is arranged on the outer wall of the upper die 40 corresponding to the two legs of the door-shaped support 30, and the end of the sliding block away from the upper die 40 is slidingly connected to the side wall of the leg of the door-shaped support 30.

[0029] Embodiment 3:

[0030] As another preferred embodiment of the present application, on the basis of the scheme of embodiment 1, the collecting groove 15 is arranged in a sandwich structure, and a circulating water pipe is arranged in the cavity of the sandwich structure, and the circulating water pipe is connected with the water cooling circulating device arranged outside (a conventional water cooling circulating device in the art can be used), for cooling the waste falling into the collecting groove 15. Similarly, the side wall of the lower die 20 located outside the outer circle of the groove 21 can also be provided with a cooling cavity, and a circulating water pipe connected with the water cooling circulating device is arranged in the cooling cavity, for rapidly cooling the raw material after forging.

Claims

1. A mold for processing automotive parts, characterized in that: The assembly includes a base, a lower mold, a portal frame, an upper mold, a forging hole assembly, and an unloading assembly. The lower mold is located in the middle of the end face of the base, and a groove is formed on its end face. A coaxial through hole is formed in the middle of the bottom surface of the groove. A blanking hole is formed on the base corresponding to the through hole, and they are connected by a connecting pipe. A portal frame is set on the end face of the base and on the outer ring of the lower mold. The upper mold is set on the top surface of the portal frame through a lifting assembly, and a forging hole assembly is set on the upper mold corresponding to the through hole. An unloading assembly is set on the lower mold, including an annular plate, multiple push rods and springs, and a lifting plate. A coaxial annular groove is formed on the bottom surface of the groove and on the outer ring of the through hole. The annular plate is slidably engaged in the annular groove. Multiple push rods are evenly arranged around the central axis on the bottom surface of the annular plate. The ends of the multiple push rods away from the annular plate pass through the bottom surface of the lower mold and the base in sequence and are fixedly connected to the same lifting plate set on the lower side of the base. A spring is set between the lifting plate and the bottom surface of the base and on the outer ring of the push rods.

2. The automotive parts processing mold according to claim 1, characterized in that: The base is supported by multiple evenly distributed support frames on its outer bottom surface.

3. The automotive parts processing mold according to claim 1, characterized in that: Multiple rubber blocks are evenly arranged around the outer edge of the bottom surface of the lower mold and around its own central axis, and the bottom surface of the rubber blocks is fixedly connected to the end face of the base.

4. The automotive parts processing mold according to claim 1, characterized in that: The top end of the connecting pipe is fixedly connected to the bottom surface of the lower mold, and the outer wall of the lower end of the connecting pipe is slidably connected to the inner wall of the discharge hole. The inner wall of the connecting pipe is set as a funnel-shaped structure that is larger at the top and smaller at the bottom.

5. The automotive parts processing mold according to claim 1, characterized in that: The lifting assembly includes a main gear and multiple sets of telescopic components. The main gear is rotatably mounted on the top center of the portal frame via a gear shaft. The multiple sets of telescopic components are evenly arranged around the central axis of the main gear and include a screw, a sleeve, and a secondary gear. The top end of the screw is rotatably connected to the top surface of the portal frame, and the bottom end of the sleeve is fixedly connected to the end face of the upper mold. The bottom end of the screw is located inside the top end of the sleeve, and the outer wall of the screw is threadedly connected to the inner wall of the sleeve. The outer wall of the top end of the screw is fixedly sleeved with the secondary gear corresponding to the main gear, and the secondary gear meshes with the main gear.

6. The automotive parts processing mold according to claim 5, characterized in that: The forging assembly includes a housing, a hydraulic telescopic rod, a fixing frame, and a forging hammer. The upper mold has a through hole corresponding to the through hole, and its end face is located between the through hole and the telescopic component. The housing is set with the hydraulic telescopic rod on the inner wall of the housing through the fixing frame. The forging hammer is set at the output end of the hydraulic telescopic rod. The outer wall of the forging hammer is slidably connected to the inner wall of the through hole.

7. The automotive parts processing mold according to claim 1, characterized in that: A guide tube is fixedly installed on the bottom surface of the base and around the outer ring of the discharge hole. The inner wall of the guide tube is a funnel-shaped structure that is larger at the top and smaller at the bottom. The middle part of the lifting plate is penetrated by the guide tube and slidably connected. A collection trough is provided on the lower side of the guide tube.

8. The automotive parts processing mold according to claim 1, characterized in that: The lifting plate is driven to lift and lower by multiple sets of circulating components. The circulating components include a rotating frame, a rotating shaft and a cam. The rotating frame is fixedly set on the bottom surface of the base corresponding to the outer ring of the lifting plate, and the rotating shaft is rotatably set at its bottom. The outer wall of the rotating shaft is fixedly sleeved with a cam, and the bottom end of the cam contacts the top surface of the lifting plate.

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