A rapid die change device for forging dies

Abstract

The present invention belongs to the technical field of die changing for presses, and provides a rapid die changing device for forging and forming dies, including a self-locking connection mechanism, which includes a connection top plate and a connection round table fixedly connected to the top of the die core. A connection hole is provided at the bottom of the connection top plate, and the connection round table is adapted to the connection hole. A rotary clamping member is provided between the connection round table and the connection hole. Two groups of clamping blocks are slidably connected horizontally in the connection top plate. Two groups of slots are provided on the side wall of the connection round table, and the slots are adapted to the clamping blocks. Two groups of bolt driving components are provided in the connection top plate, and the two bolt driving components are used to drive the clamping blocks to insert into the slots; a die changing trolley, including a storage vehicle, and a lifting support structure is provided on one side of the storage vehicle. The lifting support structure includes a lifting plate, and a turntable and a movable pulley assembly are provided on the lifting plate. The turntable is used to drive the die core to deflect horizontally. The present invention can quickly replace the die core of the forging and forming die, reducing labor consumption and time cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of die changing for presses, and particularly relates to a rapid die changing device for forging forming dies. Background Art

[0002] A forging die refers to a tool that can form a blank into a die forging; die forging means first heating the metal to the required temperature for the process, where the metal has a smaller deformation resistance, and then putting it into the die, and forming the die cavity shape through the closing of the upper and lower dies of the die. Forging dies are essential key process equipment in the production of die forgings and play a crucial role in the production of die forgings.

[0003] When different-shaped and sized die forgings need to be forged, different forging dies need to be frequently replaced. When replacing forging dies, manual labor is mostly used, the operation is cumbersome, and the production efficiency is low, which can no longer meet the requirements of rapid die changing. Summary of the Invention

[0004] The purpose of the present invention is to provide a rapid die changing device for forging forming dies to solve the above problems and achieve the purpose of rapidly replacing the die core of the forging forming die and reducing labor consumption and time costs.

[0005] To achieve the above purpose, the present invention provides the following solution: A rapid die changing device for forging forming dies, comprising:

[0006] A self-locking connection mechanism, including a connection top plate and a connection round table fixedly connected to the top of the die core. A connection hole is opened at the bottom of the connection top plate, and the connection round table is adapted to the connection hole. A rotary clamping member is arranged between the connection round table and the connection hole. Two groups of clamping blocks are horizontally and slidably connected in the connection top plate. Two groups of slots are opened on the side wall of the connection round table, and the slots are adapted to the clamping blocks. Two groups of bolt driving components are arranged in the connection top plate, and the two bolt driving components are used to drive the clamping blocks to insert into the slots.

[0007] A die changing trolley, including a storage cart. A lifting support structure is arranged on one side of the storage cart. The lifting support structure includes a lifting plate, and a turntable and a movable pulley assembly are arranged on the lifting plate. The turntable is used to drive the die core to deflect horizontally.

[0008] Preferably, the rotary clamping member includes a plurality of connection blocks fixedly connected to the side wall of the connection round table at equal intervals and a plurality of sliding grooves vertically opened at equal intervals on the side wall of the connection hole. The top parts of the side walls of the plurality of sliding grooves in the same rotation direction are respectively communicated with horizontally arranged transverse sliding grooves, and the connection blocks are correspondingly arranged with the sliding grooves and the transverse sliding grooves.

[0009] Preferably, the driving assembly includes a first hydraulic chamber horizontally formed in the connecting top plate. The first hydraulic chamber is disposed on a side of the clamping block away from the connecting hole. A first piston is slidably connected in the first hydraulic chamber. One end of the first piston is fixedly connected to the clamping block through a push rod;

[0010] It further includes a second hydraulic chamber vertically formed in the connecting top plate. A second piston is slidably connected in the second hydraulic chamber. The top end of the second hydraulic chamber is communicated with one end of the first hydraulic chamber away from the connecting hole through an oil passage. Hydraulic oil is filled between the first piston, the first hydraulic chamber, the second piston, the second hydraulic chamber and the oil passage. One side of the second piston away from the oil passage is pushed by a bolt fastener disposed between the connecting top plate and the mold core.

[0011] Preferably, the bolt fastener includes a fixing bolt, a threaded hole formed at the bottom of the connecting top plate, and a through hole formed in the mold core. The threaded hole is communicated with one end of the second hydraulic chamber away from the oil passage. The threaded end of the fixing bolt penetrates through the through hole and the threaded hole and pushes the second piston to move towards the oil passage.

[0012] Preferably, one side of the storage cart is open. Two sets of roller groups are arranged in the storage cart from top to bottom. The upper and lower roller groups are respectively used for storing old molds and new molds;

[0013] The lifting support structure is disposed on the open side of the storage cart. An elevating driving member for controlling the height of the lifting plate is disposed in the lifting support structure. A position locking assembly is disposed between the movable pulley assembly and the elevating driving member. When the position locking assembly makes the movable pulley assembly at a high position, the mold core contacts the movable pulley assembly. When the position locking assembly makes the movable pulley assembly at a low position, the mold core contacts the turntable, and the turntable is used to drive the mold core to rotate.

[0014] Preferably, the lifting support structure includes two top beams horizontally and fixedly connected to the top of the open end of the storage cart. The two top beams are respectively disposed on two sides of the storage cart. Two support columns are respectively and vertically fixedly connected to the bottoms of the two top beams. Wheels are disposed at the bottoms of the support columns. The elevating driving member is disposed in the support columns. The lifting plate is disposed between the four elevating driving members.

[0015] Preferably, the elevating driving member includes two sprockets respectively rotatably connected to the top and bottom inside the support columns. A chain is wound between the two sprockets. The movable pulley assembly is fixedly connected to the chain. A rotation driving member is disposed between one sprocket and the support column.

[0016] Preferably, the movable pulley assembly includes two sets of connecting rods arranged horizontally. A fixing bar is fixedly connected between one ends of the two sets of connecting rods. A plurality of rolling balls are rotatably connected to the top of the fixing bar. The other ends of the two connecting rods are respectively fixedly connected to the two chains on the same side.

[0017] Two first grooves for penetrating the connecting rods are formed on the side wall of the lifting plate. Springs are abutted between the top of the connecting rod and the first grooves. A second groove is formed downward on the top of the lifting plate. The fixing bar is located in the second groove.

[0018] Preferably, the position locking assembly includes a plurality of through holes horizontally formed at the bottom of the side wall of the fixing bar and a plurality of limiting posts horizontally slidably connected in the lifting plate. The plurality of limiting posts are correspondingly arranged with the plurality of through holes. A screw rod is threadedly connected to one end of the limiting post. The other end of the screw rod away from the limiting post is drivingly connected to a second motor.

[0019] Preferably, a first motor is arranged in the lifting plate. The first motor is drivingly connected to the bottom of the turntable. The first motor is used to drive the turntable to rotate.

[0020] Compared with the prior art, the present invention has the following advantages and technical effects: Overall, by setting the rotary clamping member, the mold core can be connected and released from the connecting top plate by horizontally rotating the mold core by a certain angle, improving the mold changing efficiency. At the same time, the rotation of the mold core is restricted by the clamping block, improving the connection stability. At the same time, by setting the turntable and the movable pulley assembly, the mold core can smoothly slide on the lifting plate and can easily achieve angular deflection, facilitating the connection between the mold core and the connecting top plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a connection schematic diagram of the connecting top plate and the mold core of the present invention;

[0023] Figure 2 It is a top view cross-sectional view of the connecting top plate of the present invention;

[0024] Figure 3 It is a top view schematic diagram of the connecting top plate of the present invention;

[0025] Figure 4 It is a front view of the mold core of the present invention;

[0026] Figure 5 Schematic diagram of the die change trolley of the present invention;

[0027] Figure 6 Cross-sectional view of the lifting plate of the present invention;

[0028] Figure 7 Cross-sectional view of the support column of the present invention;

[0029] Among them, 1. Connecting top plate; 2. Die core; 3. Threaded hole; 4. Perforation; 5. Connecting round table; 6. Connecting block; 7. Slideway; 8. Clamping block; 9. Connecting hole; 10. Chute; 11. Ejector rod; 12. First piston; 13. First hydraulic cavity; 14. Oil passage; 15. Second hydraulic cavity; 16. Second piston; 18. Fixed bolt; 19. Slot; 20. Storage cart; 21. Top beam; 22. Support column; 23. Lifting plate; 24. Wheel; 25. Horizontal chute; 26. Turntable; 27. Sprocket; 28. Chain; 29. First motor; 30. Fixed strip; 31. Connecting rod; 32. Spring; 33. Ball; 34. Limit post; 35. Lead screw; 36. Second motor. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Refer to Figures 1-7 , the present invention provides a rapid die change device for forging and forming molds, including:

[0033] A self-locking connection mechanism, including a connecting top plate 1 and a connecting round table 5 fixedly connected to the top of the die core 2. A connecting hole 9 is opened at the bottom of the connecting top plate 1. The connecting round table 5 is adapted to the connecting hole 9. A rotary clamping member is provided between the connecting round table 5 and the connecting hole 9. Two groups of clamping blocks 8 are slidably connected horizontally in the connecting top plate 1. Two groups of slots 19 are opened on the side wall of the connecting round table 5. The slots 19 are adapted to the clamping blocks 8. Two groups of bolt driving components are provided in the connecting top plate 1. The two bolt driving components are used to drive the clamping blocks 8 to insert into the slots 19;

[0034] Die change trolley, including a storage trolley 20, on one side of the storage trolley 20, a lifting support structure is provided, the lifting support structure includes a lifting plate 23, a turntable 26 and a movable pulley assembly are provided on the lifting plate 23, and the turntable 26 is used to drive the mold core 2 to deflect horizontally.

[0035] The main function of the rotary clamping part is that after the connecting round table 5 is inserted into the connecting hole 9, by rotating the mold core 2, the mold core can be connected to the connecting top plate 1, improving the die change efficiency of the mold core and reducing the operation difficulty; the main function of the bolt driving assembly is to drive the clamping block 8 to make the clamping block 8 inserted into the slot 19 to prevent the connecting round table 5 from rotating in the connecting hole 9 and improving the connection stability; the main function of the lifting plate 23 is to carry the mold core and drive the mold core 2 to move up or down under the action of the lifting driving part to realize the disassembly and assembly of the mold core; the main function of the turntable 26 is to drive the mold core 2 to rotate; the main function of the movable pulley assembly is to facilitate the sliding of the mold core 2 on the lifting plate 23. Overall, the present invention improves the die change efficiency by setting a rotary clamping part and realizing the connection and release of the mold core from the connecting top plate by horizontally rotating the mold core by a certain angle. At the same time, the rotation of the mold core is restricted by the clamping block to improve the connection stability. At the same time, by setting a turntable and a movable pulley assembly, the mold core can slide smoothly on the lifting plate and can be easily deflected at an angle, facilitating the connection between the mold core and the connecting top plate.

[0036] In a further optimized solution, the rotary clamping part includes a plurality of connecting blocks 6 fixedly connected to the side wall of the connecting round table 5 at equal intervals and a plurality of sliding grooves 10 vertically opened on the side wall of the connecting hole 9 at equal intervals. The top parts of the side walls of the plurality of sliding grooves 10 in the same rotation direction are respectively communicated with horizontally arranged transverse sliding grooves 25, and the connecting blocks 6 are arranged corresponding to the sliding grooves 10 and the transverse sliding grooves 25.

[0037] As Figure 1 、 Figure 3 and Figure 4 shown, in this embodiment, three groups of connecting blocks 6 and three groups of sliding grooves 10 are provided in total. After aligning the connecting blocks 6 with the sliding grooves 10, by lifting the mold core 2 upward, the connecting round table 5 can be inserted into the connecting hole 9 upward. Then, by rotating the mold core 2, the connecting blocks 6 slide into the transverse sliding grooves 25, and the mold core 2 is fixedly connected to the bottom of the connecting top plate 1 by the limitation of the transverse sliding grooves 25 on the connecting blocks 6.

[0038] In a further optimized solution, the driving assembly includes a first hydraulic cavity 13 horizontally opened in the connecting top plate 1, the first hydraulic cavity 13 is arranged on the side of the clamping block 8 away from the connecting hole 9, a first piston 12 is slidably connected in the first hydraulic cavity 13, and one end of the first piston 12 is fixedly connected to the clamping block 8 through a push rod 11;

[0039] It further includes a second hydraulic chamber 15 vertically opened in the connecting top plate 1. A second piston 16 is slidably connected in the second hydraulic chamber 15. The top end of the second hydraulic chamber 15 is communicated with one end of the first hydraulic chamber 13 away from the connecting hole 9 through an oil passage 14. Hydraulic oil is filled between the first piston 12, the first hydraulic chamber 13, the second piston 16, the second hydraulic chamber 15 and the oil passage 14. One side of the second piston 16 away from the oil passage 14 is pushed by a bolt fastener arranged between the connecting top plate 1 and the mold core 2.

[0040] As Figure 1 and Figure 2 shown, rotate the mold core 2 to make it in the correct installation position. At this time, the connecting block 6 slides into the horizontal sliding groove 25. Then, push the second piston 16 to move in the direction of the oil passage 14 through the bolt fastener. The second piston 16 extrudes the hydraulic oil, and uses the pressure of the hydraulic oil to push the first piston 12 to move in the direction of the connecting hole 9. At this time, the first piston 12 pushes the clamping block 8 to move into the slot 19 through the ejector rod 11 and inserts into the slot 19, preventing the connecting frustum 5 from rotating and increasing the connection firmness.

[0041] In a further optimized solution, a sliding track 7 is opened in the connecting top plate 1. One side of each of the two clamping blocks 8 is slidably connected in the sliding track 7 through a stop block, and a second spring is abutted between the two stop blocks.

[0042] When it is necessary to remove the mold core, when the bolt fastener is removed, the second spring can push the two clamping blocks 8 outwards through its own elastic force, so that the clamping blocks 8 are disengaged from the slot 19.

[0043] In a further optimized solution, the bolt fastener includes a fixing bolt 18, a threaded hole 3 opened at the bottom of the connecting top plate 1, and a through hole 4 opened on the mold core 2. The threaded hole 3 is communicated with one end of the second hydraulic chamber 15 away from the oil passage 14. The threaded end of the fixing bolt 18 penetrates through the through hole 4 and the threaded hole 3 and pushes the second piston 16 to move in the direction of the oil passage 14.

[0044] As Figure 1 and Figure 2 shown, when the mold core 2 is in the correct connection position, the threaded hole 3 is aligned with the through hole 4. At this time, use the fixing bolt 18 to screw into the threaded hole 3. As the fixing bolt 18 is screwed, the threaded end of the fixing bolt 18 rises and pushes the second piston 16. When the fixing bolt 18 is tightened, the fixing bolt 18 can also play a role in assisting in connecting the mold core 2 and the connecting top plate 1.

[0045] In a further optimized solution, one side of the storage cart 20 is open. Two sets of sliding roller groups are arranged in the storage cart 20 from top to bottom. The upper and lower sliding roller groups are respectively used for storing old molds and new molds;

[0046] ​The lifting bracket structure is arranged on the open side of the storage cart 20. An elevating drive member for controlling the height of the lifting plate 23 is arranged inside the lifting bracket structure. A position locking assembly is arranged between the movable pulley assembly and the elevating drive member. When the position locking assembly positions the movable pulley assembly at a high position, the die core 2 contacts the movable pulley assembly. When the position locking assembly positions the movable pulley assembly at a low position, the die core 2 contacts the turntable 26, and the turntable 26 is used to drive the die core 2 to rotate.

[0047] The main function of the sliding roller group is to facilitate the sliding of the die core 2 in the storage cart 20, thereby facilitating the taking and placing of the die core 2 from the storage cart 20. By providing a storage cart, the die-changing trolley can store new and old die cores during one die change, avoiding the problem of reduced efficiency caused by reciprocally taking and placing new and old die cores.

[0048] In a further optimized solution, two upper and lower storage plates are arranged in the storage cart 20, and two groups of sliding roller groups are respectively arranged on the upper and lower storage plates. The die core 2 can be pushed into the storage cart 20 or taken out of the storage cart 20 by horizontal pushing and pulling.

[0049] In a further optimized solution, the lifting bracket structure includes two top beams 21 horizontally and fixedly connected to the top of the open end of the storage cart 20. The two top beams 21 are respectively arranged on both sides of the storage cart 20. Two support columns 22 are vertically and fixedly connected to the bottoms of the two top beams 21. Wheels 24 are arranged at the bottoms of the support columns 22. The elevating drive member is arranged inside the support columns 22, and the lifting plate 23 is arranged between the four elevating drive members.

[0050] As Figure 5 shown, a lifting space for the lifting plate 23 can be vacated between the two top beams 21, which can ensure that the lifting plate 23 smoothly enters the forging equipment to perform die-changing work.

[0051] In a further optimized solution, the elevating drive member includes two sprockets 27 respectively rotatably connected to the top and bottom inside the support columns 22. A chain 28 is wound around between the two sprockets 27. The movable pulley assembly is fixedly connected to the chain 28. A rotation drive member is arranged between one sprocket 27 and the support column 22.

[0052] In a further optimized solution, the rotation drive member can be in the form of a combination of a motor and a reducer, which is used to drive one sprocket 27 to rotate, so that the chain 28 can drive the lifting plate 23 to move up and down.

[0053] In a further optimized solution, the movable pulley assembly includes two horizontally arranged connecting rods 31. A fixed bar 30 is fixedly connected between one ends of the two connecting rods 31. A plurality of balls 33 are rotatably connected to the top of the fixed bar 30. The other ends of the two connecting rods 31 are respectively fixedly connected to the two chains 28 on the same side;

[0054] On the side wall of the lifting plate 23, there are two groups of first grooves for passing through the connecting rod 31. Between the top of the connecting rod 31 and the first grooves, there is a spring 32 in contact. On the top of the lifting plate 23, a second groove is opened downward, and the fixing strip 30 is located in the second groove.

[0055] As Figure 5 and Figure 6 shown, when the position locking component does not lock the fixing strip 30, when the chain 28 drives the connecting rod 31 to rise, the connecting rod 31 squeezes the spring 32 and makes the fixing strip 30 rise relative to the lifting plate 23, so that the height of the ball 33 is higher than that of the turntable 26. At this time, the operator can conveniently push the mold core 2 onto or out of the lifting plate 23 through the ball.

[0056] When the position locking component locks the fixing strip 30, when the chain 28 drives the connecting rod 31 to rise, the fixing strip 30 directly lifts the lifting plate 23 together through the position locking component, so that the height of the ball 33 does not exceed the height of the turntable 26. At this time, the mold core 2 can be controlled to rotate in the horizontal direction.

[0057] In a further optimized solution, the position locking component includes a number of through holes horizontally opened at the bottom of the side wall of the fixing strip 30 and a number of limiting posts 34 horizontally slidably connected in the lifting plate 23. The number of limiting posts 34 is correspondingly arranged with the number of through holes. One end of the limiting post 34 is threadedly connected with a lead screw 35, and the end of the lead screw 35 away from the limiting post 34 is drivingly connected with a second motor 36.

[0058] As Figure 6 shown, the cross section of the limiting post 34 is set to be rectangular. When it is necessary to lock the fixing strip 30 in the second groove, the second motor 36 can be driven to drive the lead screw 35 to rotate, and the limiting post 34 is pushed into the through hole on the fixing strip 30 through the threaded transmission of the lead screw 35 to realize the locking of the fixing strip 30. When the second motor 36 drives the limiting post 34 to be withdrawn from the through hole, the fixing strip 30 and the lifting plate 23 can move relative to each other.

[0059] In a further optimized solution, a first motor 29 is arranged in the lifting plate 23. The first motor 29 is drivingly connected to the bottom of the turntable 26, and the first motor 29 is used to drive the turntable 26 to rotate.

[0060] As Figure 6 shown, the output shaft of the first motor 29 can be drivingly connected to the center of the bottom of the turntable 26 through a speed reducer. By controlling the rotation of the first motor 29, the horizontal deflection of the turntable 26 can be controlled.

[0061] The working process of this embodiment is as follows: When the mold core needs to be replaced, the operator first places the mold core 2 to be replaced in the lower roller group of the storage cart. Then, the mold-changing trolley is driven to the forging equipment. First, lower the lifting plate 23 until it touches the ground, and then control the second motor 36 to rotate so that the limit post 34 is inserted into the through hole. After that, raise the lifting plate 23 and drive the storage cart 20 forward, place the lifting plate 23 below the mold core 2 to be replaced, and make the turntable 26 fit against the bottom of the mold core 2. Then, unscrew the fixing bolt 18, drive the turntable 26 to drive the mold core 2 to rotate, so that the connecting block 6 rotates to the chute 10, lower the lifting plate 23, and the mold core 2 can be driven to descend and be removed from the connecting top plate 1. Lower the lifting plate 23 until it touches the ground, control the second motor 36 to reverse, push the limit post 34 out of the through hole, and lift the lifting plate 23 again. At this time, the ball 33 touches the bottom of the mold core, lift the lifting plate 23 to an appropriate height, and push the replaced mold core 2 into the upper roller group of the storage cart 20.

[0062] After that, lower the lifting plate 23 again, push the new mold core 2 onto the lifting plate 23, continue to lower it until the lifting plate 23 touches the ground, control the second motor 36 to rotate, insert the limit post 34 into the through hole of the fixing strip 30, lift the lifting plate 23 to an appropriate position so that the connecting block 6 is aligned with the chute 10, lift it up until the connecting round table 5 is inserted into the connecting hole 9, then control the turntable 26 to correct the position of the mold core 2 so that the connecting block 6 slides into the horizontal chute 25, and then use the fixing bolt 18 to pass through the through hole 4 and screw it into the threaded hole 3, push the clamping block 8 into the slot 19, and use the fixing bolt 18 to assist in fixing the mold core 2.

[0063] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0064] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A forging die rapid die changing device, characterized in that: include: The self-locking connection mechanism comprises a connection top plate (1) and a connection truncated platform (5) fixedly connected to the top of the mold core (2), wherein the bottom of the connection top plate (1) is provided with an encounter connection hole (9), the connection truncated platform (5) is matched with the connection hole (9), a rotating clamping member is provided between the connection truncated platform (5) and the connection hole (9), two groups of clamping blocks (8) are slidably connected in the horizontal direction in the connection top plate (1), two groups of slots (19) are provided on the side wall of the connection truncated platform (5), the slots (19) are matched with the clamping blocks (8), and two groups of bolt driving assemblies are provided in the connection top plate (1), and the two bolt driving assemblies are used to drive the clamping blocks (8) to be inserted into the slots (19); A mold changing trolley comprises a storage trolley (20), one side of the storage trolley (20) is provided with a lifting support structure, the lifting support structure comprises a lifting plate (23), a turntable (26) and a movable pulley assembly are provided on the lifting plate (23), the turntable (26) is used to drive the mold core (2) to perform horizontal deflection; One side of the storage vehicle (20) is provided with an opening, and two sets of sliding rollers are arranged from top to bottom in the storage vehicle (20), and the upper and lower sliding rollers are used to store old molds and new molds respectively; The lifting support structure is arranged on the opening side of the storage vehicle (20), and a lifting drive member for controlling the height of the lifting plate (23) is arranged in the lifting support structure. A position locking assembly is arranged between the movable pulley assembly and the lifting drive member. When the movable pulley assembly is in a high position, the mold core (2) contacts the movable pulley assembly. When the movable pulley assembly is in a low position, the mold core (2) contacts the turntable (26). The turntable (26) is used to drive the mold core (2) to rotate. The lifting support structure comprises two groups of top beams (21) horizontally fixedly connected to the top of the open end of the storage vehicle (20), the two groups of top beams (21) are respectively arranged on both sides of the storage vehicle (20), the bottoms of the two groups of top beams (21) are respectively vertically fixedly connected to two groups of support columns (22), the lifting drive components are arranged in the support columns (22), and the lifting plate (23) is arranged between the four groups of lifting drive components; The lifting drive member comprises two groups of sprocket wheels (27) which are rotatably connected to the top and bottom of the inner side of the support column (22), respectively; a chain (28) is wound around the two sprocket wheels (27); and the movable pulley assembly is fixedly connected to the chain (28); The movable pulley assembly comprises two groups of horizontally arranged connecting rods (31), one end of the two groups of connecting rods (31) being fixedly connected with a fixing bar (30), the top of the fixing bar (30) being rotatably connected with a plurality of balls (33), and the other ends of the two connecting rods (31) being fixedly connected with the two chains (28) located on the same side respectively; Two sets of first grooves that are the same as those passing through the connecting rod (31) are formed on the side wall of the lifting plate (23); a spring (32) is abutted between the top of the connecting rod (31) and the first groove; a second groove is formed downwardly from the top of the lifting plate (23); and the fixing strip (30) is located in the second groove; The position locking assembly comprises a plurality of through holes horizontally provided at the bottom of the side wall of the fixing strip (30) and a plurality of limiting columns (34) horizontally slidably connected to the lifting plate (23), wherein the plurality of limiting columns (34) are arranged corresponding to the plurality of through holes, one end of the limiting column (34) is threadedly connected to a screw rod (35), and one end of the screw rod (35) away from the limiting column (34) is transmission-connected to a second motor (36).

2. A forging die rapid die changing device according to claim 1, characterized in that: The rotary clamping member comprises a plurality of connection blocks (6) fixedly connected to the side wall of the connection truncated table (5) at equal intervals, and slide grooves (10) vertically arranged at equal intervals on the side wall of the connection hole (9), the tops of the side walls of the plurality of slide grooves (10) in the same rotation direction are respectively connected to horizontally arranged transverse slide grooves (25), and the connection blocks (6) are arranged corresponding to the slide grooves (10) and the transverse slide grooves (25).

3. A forging die rapid die change device according to claim 1, characterized in that: The driving assembly comprises a first hydraulic chamber (13) horizontally opened in the connecting top plate (1), the first hydraulic chamber (13) being arranged on a side of the clamping block (8) away from the connecting hole (9), a first piston (12) being slidably connected in the first hydraulic chamber (13), and one end of the first piston (12) being fixedly connected to the clamping block (8) via a push rod (11); The mold further comprises a second hydraulic chamber (15) vertically opened in the connecting top plate (1), a second piston (16) being slidably connected in the second hydraulic chamber (15), a top end of the second hydraulic chamber (15) being connected to an end of the first hydraulic chamber (13) away from the connecting hole (9) via an oil passage (14), hydraulic oil being filled between the first piston (12), the first hydraulic chamber (13), the second piston (16), the second hydraulic chamber (15) and the oil passage (14), and a side of the second piston (16) away from the oil passage (14) being pushed by a bolt fastener arranged between the connecting top plate (1) and the mold core (2).

4. A forging die rapid die change device according to claim 3, characterized in that: The bolt fastener comprises a fixing bolt (18), a threaded hole (3) formed at the bottom of the connecting top plate (1), and a through hole (4) formed on the mold core (2); the threaded hole (3) is connected to an end of the second hydraulic chamber (15) away from the oil passage (14); the threaded end of the fixing bolt (18) passes through the through hole (4) and the threaded hole (3) and pushes the second piston (16) to move in the direction of the oil passage (14).

5. The forging die rapid die changing device according to claim 1, characterized in that: A wheel (24) is provided at the bottom of the support column (22).

6. A forging die rapid die change device according to claim 1, characterized in that: A rotating drive member is provided between the sprocket (27) and the support column (22).

7. A forging die rapid die change device according to claim 1, characterized in that: A first motor (29) is disposed in the lifting plate (23), the first motor (29) being transmission-connected to the bottom of the turntable (26), and the first motor (29) being used to drive the turntable (26) to rotate.

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