High-temperature forging die for formed product

Abstract

The high-temperature forging die comprises a bottom plate, sliding rods are symmetrically arranged on the upper end face of the bottom plate in pairs, a top plate is fixedly connected to the ends of the sliding rods, a first hydraulic oil cylinder is fixedly connected to the upper end face of the top plate, and a sliding plate is fixedly connected to the telescopic end of the first hydraulic oil cylinder. The sliding plate is slidably connected to the outer walls of the multiple sets of sliding rods, a lower mold is fixedly connected to the upper end face of the bottom plate, and an upper mold is fixedly connected to the lower end face of the sliding plate. The piston, the lead screw sleeve and other devices are arranged, a mold release agent in the lubricating cylinder can be conveyed to the spray head by means of sliding of the piston and sprayed out of the inner wall of the lower mold through the spray head, adhesion between metal and the lower mold can be reduced through the arranged mold release agent, and in the follow-up forging process, the mold release agent is not prone to falling off. And the formed workpiece is easier to fall off from the mold, so that the risks of cracks and deformation are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of high-temperature forging dies, in particular to a high-temperature forging die for a molded product. Background Art

[0002] A forging die refers to a tool that can shape a blank into a die forging. The forging die is a key process equipment necessary for the production of die forgings. It is a tool that needs to be used in every stroke of the equipment and plays a vital role in the production of die forgings. The forging die is a die used in the forging process. The raw material undergoes plastic deformation in the forging die under the action of external force, thereby obtaining parts of the desired shape and size. In the case of raw materials with higher hardness, they need to be calcined at high temperature first and then made plastic by stamping.

[0003] A Chinese utility model with authorization announcement number CN220259449U discloses a high-temperature forging die. When in use, the device drives the No. 2 piston rod through the No. 2 cylinder to drive the stripper plate to eject the formed raw materials. In actual use, a certain degree of cold welding will occur where the metal contacts the die surface at high temperature, causing the metal to adhere to the die surface. This phenomenon is more common when certain parts of the metal material (such as surface oxides) contact the die surface at high temperatures. As a result, it may be difficult to separate the molded part from the die when ejecting it through the stripper plate, which can easily cause damage or deformation of the molded part. Therefore, it is necessary to redesign a high-temperature forging die for a molded product to address the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a high-temperature forging die for a molded product.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high temperature forging die for a molded product, comprising a bottom plate, wherein the upper end surface of the bottom plate is symmetrically provided with sliding rods in pairs, the ends of the sliding rods are fixedly connected to a top plate, the upper end surface of the top plate is fixedly connected to a hydraulic cylinder 1, the telescopic end of the hydraulic cylinder 1 is fixedly connected to a slide plate, the slide plate is slidably connected to the outer walls of multiple groups of sliding rods, the upper end surface of the bottom plate is fixedly connected to a lower mold, the lower end surface of the slide plate is fixedly connected to an upper mold, the upper mold is slidably connected to the inside of the lower mold, the lower end surface of the bottom plate is fixedly connected to a hydraulic cylinder 2, the telescopic end of the hydraulic cylinder 2 extends to the inside of the lower mold, and its telescopic end is fixedly connected to a stripping plate, the side wall of the stripping plate is in contact with the inner wall of the lower mold, the upper end surface of the bottom plate is symmetrically provided with two groups of nozzles, the lower end surface of the bottom plate is fixedly connected to two groups of lubrication cylinders, both groups of the lubrication cylinders are slidably connected with a lead screw sleeve and a piston, the lead screw sleeve is connected to the piston through a connecting mechanism, the outer wall of the lubrication cylinder is fixedly connected to two groups of connecting pipes, and both are communicated with the inside of the lubrication cylinder, and the other end of one group of the connecting pipes is communicated with the inside of the nozzle adjacent to it.

[0007] Preferably, the connecting mechanism comprises two groups of connecting rods fixedly connected to the outer wall of the screw sleeve, and the ends of the two groups of connecting rods are fixedly connected to the piston.

[0008] Preferably, the inner side wall of the lubrication cylinder is rotatably connected to a reciprocating screw, the screw sleeve is threadedly connected to the threaded section of the reciprocating screw, and the end of the reciprocating screw is fixedly connected to a limiting block.

[0009] Preferably, the outer walls of the two groups of lubrication cylinders are rotatably connected with gears, and the gears are coaxially and fixedly connected with the adjacent reciprocating screws.

[0010] Preferably, two groups of racks are fixedly connected to the lower end of the stripping plate, and both groups of racks pass through the bottom plate and extend to the bottom of the bottom plate, and the racks are meshed with gears.

[0011] Preferably, the inner wall of the lubrication cylinder and the outer wall of the screw sleeve are both square, and the outer walls on both sides of the screw sleeve are in contact with the inner wall of the lubrication cylinder.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model provides a piston, a screw sleeve and other devices. With the help of the sliding of the piston, the mold release agent in the lubricating cylinder can be transported to the nozzle, and then sprayed toward the inner wall of the lower mold by the nozzle. The mold release agent can reduce the adhesion between the metal and the lower mold, and in the subsequent forging process, the formed workpiece can be more easily removed from the mold, thereby reducing the risk of cracks and deformation.

[0014] 2. The utility model sets gears, racks and other devices, and uses hydraulic cylinders to drive the stripping plate to slide. While ejecting the forged material, it can simultaneously drive the reciprocating screw to rotate, thereby realizing the forward and backward sliding of the piston, without providing a separate power output source for the reciprocating screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a high temperature forging die for a molded product proposed by the utility model;

[0016] Figure 2 for Figure 1 Section view.

[0017] Figure 3 for Figure 2 Structural diagram.

[0018] Figure 4 for Figure 3 Cross-sectional view of the lubrication cylinder.

[0019] In the figure: 1. bottom plate; 2. top plate; 3. hydraulic cylinder 1; 4. slide plate; 5. slide rod; 6. lower mold; 7. stripper plate; 8. upper mold; 9. nozzle; 10. hydraulic cylinder 2; 11. rack; 12. connecting pipe; 13. lubricating cylinder; 14. gear; 15. reciprocating screw; 16. screw sleeve; 17. connecting rod; 18. piston; 19. limit block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4A high temperature forging die for a molded product comprises a bottom plate 1, wherein the upper end surface of the bottom plate 1 is symmetrically provided with slide bars 5, the ends of the slide bars 5 are fixedly connected to a top plate 2, the upper end surface of the top plate 2 is fixedly connected to a hydraulic cylinder 3, the telescopic end of the hydraulic cylinder 3 is fixedly connected to a slide plate 4, the slide plate 4 is slidably connected to the outer walls of multiple groups of slide bars 5, the upper end surface of the bottom plate 1 is fixedly connected to a lower mold 6, the lower end surface of the slide plate 4 is fixedly connected to an upper mold 8, the upper mold 8 is slidably connected to the inside of the lower mold 6, the lower end surface of the bottom plate 1 is fixedly connected to a hydraulic cylinder 2 10, the telescopic end of the hydraulic cylinder 2 10 extends to the inside of the lower mold 6, and the telescopic end is fixedly connected to a stripping plate 7, the side wall of the stripping plate 7 contacts the inner wall of the lower mold 6, the upper end surface of the bottom plate 1 is symmetrically provided with two groups of nozzles 9, the lower end surface of the bottom plate 1 is fixedly connected to two groups of lubricating cylinders 13, the two groups of lubricating cylinders 13 are slidably connected with a lead screw sleeve 16 and a piston 18, the lead screw sleeve 16 is connected to the piston through a connecting mechanism 18 is connected, and two groups of connecting pipes 12 are fixedly connected to the outer wall of the lubricating cylinder 13, and both are connected to the inside of the lubricating cylinder 13, and the other end of one group of connecting pipes 12 is connected to the inside of the adjacent nozzle 9. The two groups of lubricating cylinders 13 are injected with mold release agents. With the help of the sliding of the piston 18, the mold release agent can be injected into the nozzle 9 through the connecting pipes 12, and then sprayed to the inner wall of the lower mold 6 by the nozzle 9. The mold release agent can reduce the adhesion between the metal and the lower mold 6, so that the formed workpiece is easier to fall off from the mold, thereby reducing the risk of cracks and deformation; it should be noted that another group of connecting pipes 12 can be connected to a container with a mold release agent on the outside. When the piston 18 slides inward, the external mold release agent can be drawn into the lubricating cylinder 13. At the same time, a one-way valve is provided inside the connecting pipes 12 to prevent the mold release agent entering the lubricating cylinder 13 from flowing back.

[0022] Reference Figure 3 and Figure 4 The connecting mechanism includes two groups of connecting rods 17 fixedly connected to the outer wall of the screw sleeve 16, the ends of the two groups of connecting rods 17 are fixedly connected to the piston 18, the inner wall of the lubricating cylinder 13 is rotatably connected to the reciprocating screw 15, the screw sleeve 16 is threadedly connected to the threaded section of the reciprocating screw 15, and the end of the reciprocating screw 15 is fixedly connected to the limiting block 19. With the help of the rotation of the reciprocating screw 15, the piston 18 can be driven to slide inward and outward.

[0023] Reference Figure 3 and Figure 4The outer walls of the two groups of lubrication cylinders 13 are rotatably connected with gears 14, and the gears 14 are coaxially fixedly connected with the adjacent reciprocating screws 15. The lower end of the stripper plate 7 is fixedly connected with two groups of racks 11, and the two groups of racks 11 penetrate the bottom plate 1 and extend to the bottom of the bottom plate 1. The racks 11 and the gears 14 are meshed with each other. By utilizing the meshing of the racks 11 and the gears 14, when the molded material is ejected upward through the stripper plate 7, the reciprocating screws 15 can be driven to rotate, so that the piston 18 slides inward, and the external mold release agent is drawn into the lubrication cylinder 13. When the stripper plate 7 slides downward, the mold release agent can be injected into the nozzle 9 and sprayed toward the inner wall of the lower mold 6.

[0024] Reference Figure 4 The inner wall of the lubricating cylinder 13 and the outer wall of the screw sleeve 16 are both square, and the outer walls on both sides of the screw sleeve 16 are in contact with the inner wall of the lubricating cylinder 13. The inner wall of the lubricating cylinder 13 is limited, and when the screw sleeve 16 slides, there is no need to limit it, and horizontal sliding can be achieved.

[0025] In the utility model, the specific function of the device is as follows: when using the device, the material to be forged is placed in the lower die 6, and the slide plate 4 is driven to slide downward by the hydraulic cylinder 1 3, driving the upper die 8 to forge the material in the lower die 6. After the material is forged, the stripper plate 7 is driven to slide upward by the hydraulic cylinder 2 10, so that the material in the lower die 6 can be ejected upward. In this process, the rack 11 slides upward, and when sliding, it uses the meshing with the gear 14 to drive the reciprocating screw 15 to rotate. The reciprocating screw 15 drives the reciprocating screw 15 to rotate. The movable piston 18 slides inwards, and then the external mold release agent is drawn into the lubricating cylinder 13. When the hydraulic cylinder 10 drives the stripping plate 7 to slide downward, the provided screw sleeve 16 drives the piston 18 to slide outwards. During sliding, the mold release agent in the lubricating cylinder 13 can be transported to the nozzle 9 through the connecting pipe 12, and then sprayed toward the inner wall of the lower mold 6 by the nozzle 9. The provided mold release agent can reduce the adhesion between the metal and the lower mold 6. In the subsequent forging process, the formed workpiece can be more easily removed from the mold, thereby reducing the risk of cracks and deformation.

[0026] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A high temperature forging die for a molded product, comprising a base plate (1), characterized in that: The upper end surface of the bottom plate (1) is symmetrically provided with sliding rods (5) in pairs, and the ends of the sliding rods (5) are fixedly connected to the top plate (2), and the upper end surface of the top plate (2) is fixedly connected to a hydraulic cylinder (3), and the telescopic end of the hydraulic cylinder (3) is fixedly connected to a slide plate (4), and the slide plate (4) is slidably connected to the outer wall of multiple groups of sliding rods (5). The upper end surface of the bottom plate (1) is fixedly connected to a lower mold (6), and the lower end surface of the slide plate (4) is fixedly connected to an upper mold (8), and the upper mold (8) is slidably connected to the inside of the lower mold (6). The lower end surface of the bottom plate (1) is fixedly connected to a hydraulic cylinder (10), and the telescopic end of the hydraulic cylinder (10) extends to the lower mold. (6) inside, and its telescopic end is fixedly connected to a stripper plate (7), the side wall of the stripper plate (7) contacts the inner wall of the lower mold (6), the upper end surface of the base plate (1) is symmetrically provided with two groups of nozzles (9), the lower end surface of the base plate (1) is fixedly connected to two groups of lubricating cylinders (13), both groups of the lubricating cylinders (13) are slidably connected with a screw sleeve (16) and a piston (18), the screw sleeve (16) is connected to the piston (18) through a connecting mechanism, and the outer wall of the lubricating cylinder (13) is fixedly connected to two groups of connecting pipes (12), and both are connected to the inside of the lubricating cylinder (13), and the other end of one group of the connecting pipes (12) is connected to the inside of the adjacent nozzle (9).

2. A high temperature forging die for a molded product according to claim 1, characterized in that: The connection mechanism comprises two groups of connecting rods (17) fixedly connected to the outer wall of the screw sleeve (16), and the ends of the two groups of connecting rods (17) are fixedly connected to the piston (18).

3. A high temperature forging die for a molded product according to claim 2, characterized in that: The inner wall of the lubrication cylinder (13) is rotatably connected to a reciprocating screw (15), the screw sleeve (16) is threadedly connected to the threaded section of the reciprocating screw (15), and the end of the reciprocating screw (15) is fixedly connected to a limiting block (19).

4. A high temperature forging die for a molded product according to claim 3, characterized in that: The outer walls of the two groups of lubrication cylinders (13) are both rotatably connected with gears (14), and the gears (14) are coaxially and fixedly connected with the adjacent reciprocating screws (15).

5. A high temperature forging die for a molded product according to claim 4, characterized in that: Two groups of racks (11) are fixedly connected to the lower end of the stripping plate (7); both groups of racks (11) penetrate the bottom plate (1) and extend to below the bottom plate (1); and the racks (11) and the gears (14) are meshed with each other.

6. A high temperature forging die for a molded product according to claim 5, characterized in that: The inner wall of the lubricating cylinder (13) and the outer wall of the screw sleeve (16) are both square, and the outer walls on both sides of the screw sleeve (16) are in contact with the inner wall of the lubricating cylinder (13).

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