Cold extrusion die for small forgings

Abstract

The utility model discloses a cold extrusion die for small forgings, which belongs to the technical field of cold extrusion dies and comprises a worktable, a U-shaped plate A connected to the upper end of the worktable, an extrusion component arranged on the U-shaped plate A, an ejection hole formed in the middle of the upper end of the worktable, and a lower die arranged in the middle of the upper end of the worktable, a limiting assembly is arranged at the upper end of the workbench, an ejection mechanism is arranged at the end, away from the U-shaped plate A, of the workbench and comprises a U-shaped plate B connected to the workbench, sliding grooves are formed in the two sides of the inner wall of the U-shaped plate B, a motor is connected to the middle of the upper end of the U-shaped plate B, the output end of the motor is connected with a rotating screw B, and the rotating screw B is in threaded connection with a moving sleeve. The upper end of the movable sleeve is connected with an ejector plate, and the peripheral side of the movable sleeve is connected with two symmetrically-arranged sliding plates. According to the utility model, the action of automatically ejecting the forge piece formed by cold extrusion is realized, the forge piece is prevented from being taken out inconveniently, and the cold extrusion efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cold extrusion dies, in particular to a cold extrusion die for small forgings. Background Technique

[0002] Cold extrusion is a processing method in which a metal blank is placed in a cold extrusion die cavity, and at room temperature, a punch fixed on a press applies pressure to the blank, causing the metal blank to undergo plastic deformation to obtain a part; China has been able to perform cold extrusion on metals such as lead, tin, aluminum, copper, zinc and their alloys, low-carbon steel, medium-carbon steel, tool steel, low-alloy steel and stainless steel, and even certain deformation amounts of cold extrusion can be carried out on bearing steel, high-carbon high-aluminum alloy tool steel, high-speed steel, etc. In terms of extrusion equipment, China has the ability to design and manufacture extrusion presses of various tonnages. In addition to using general mechanical presses, hydraulic presses, and cold extrusion presses, friction presses and high-speed high-energy equipment have also been successfully used for cold extrusion production.

[0003] In the existing technology, there is a problem that it is inconvenient to take out the product after cold extrusion when performing cold extrusion on small forgings, which will cause the phenomenon that subsequent manual extraction is required, reducing the efficiency of cold extrusion and being time-consuming and laborious. For this reason, we propose a cold extrusion die for small forgings. Content of the Utility Model

[0004] The purpose of the utility model is to provide a cold extrusion die for small forgings to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A cold extrusion die for small forgings, including a workbench, a U-shaped plate A is connected to the upper end of the workbench, an extrusion assembly is arranged on the U-shaped plate A, a jacking hole is opened in the middle of the upper end of the workbench, a lower die is arranged in the middle of the upper end of the workbench, the size of the lower die is larger than the opening size of the jacking hole, a limiting assembly is arranged on the upper end of the workbench, and a jacking mechanism is arranged at one end of the workbench far from the U-shaped plate A. The jacking mechanism includes a U-shaped plate B connected to the workbench, sliding grooves are opened on both sides of the inner wall of the U-shaped plate B, a motor is connected to the middle of the upper end of the U-shaped plate B, a rotating screw B is connected to the output end of the motor, a moving sleeve is threadedly connected to the rotating screw B, a jacking plate is connected to the upper end of the moving sleeve, and two symmetrically arranged sliding plates are connected to the outer peripheral side of the moving sleeve, and the sliding plates are slidably connected to the sliding grooves.

[0006] Preferably, the extrusion assembly includes an electric push rod connected to the middle of the lower end of the U-shaped plate A, an upper die is connected to the output end of the electric push rod, guide columns are connected to both sides of the upper end of the upper die, and the guide columns are slidably connected to the U-shaped plate A.

[0007] Preferably, the limiting component includes a U-shaped sleeve connected to the workbench. Threaded rods A are connected to both sides of the U-shaped sleeve. The threaded rod A is connected to a pressing plate, and a rotating handle is connected to the end of the threaded rod A away from the pressing plate.

[0008] Preferably, brackets are connected to each corner at the lower end of the workbench, and each bracket is connected with an anti-slip pad.

[0009] Preferably, a limiting plate is connected to the upper end of the guide post, and the outer diameter of the limiting plate is larger than that of the guide post.

[0010] Preferably, a power supply is arranged on one side of the U-shaped plate A, and the power supply is electrically connected to the electric push rod and the motor.

[0011] Preferably, the size of the ejector plate is smaller than the opening size of the ejection hole.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The workbench, U-shaped plate A, extrusion component, power supply, lower die, ejection hole, ejection mechanism, brackets and anti-slip pads are provided to complete placing the forging into the lower die. Next, the power supply supplies power to the electric push rod. At this time, the output end of the electric push rod drives the upper die to move downward, thereby driving the guide post to slide with the U-shaped plate A. At this time, the forging is cold-extruded. Next, the power supply supplies power to the motor. At this time, the output end of the motor drives the threaded rod B to rotate, thereby driving the moving sleeve to move upward, and then driving the ejector plate to move upward. At this time, the moving sleeve drives the sliding plate to move in the chute. At this time, the ejector plate can eject the forging. The utility model realizes the automatic ejection of the cold-extruded forging, prevents the forging from being inconvenient to take out, and improves the efficiency of cold extrusion.

[0014] 2. The limiting component is provided to complete when different lower dies need to be replaced. At this time, the rotating handle can be rotated to drive the threaded rod A to rotate, thereby driving the pressing plate to move away from the lower die. Next, another lower die can be replaced, and then the rotating handle is reversed. When the pressing plate abuts against the lower die, it can be stopped, improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 It is a schematic diagram of the ejection mechanism structure of the present utility model;

[0017] Figure 3 It is a schematic diagram of the ejection hole structure of the present utility model;

[0018] Figure 4 Structural schematic diagram of the limit component of the present utility model;

[0019] Figure 5 Structural schematic diagram of the extrusion component of the present utility model.

[0020] In the figure: 1, workbench; 2, U-shaped plate A; 3, extrusion component; 301, electric push rod; 302, upper die; 303, guide post; 304, limit plate; 4, power supply; 5, lower die; 6, limit component; 601, return-shaped sleeve; 602, rotating screw A; 603, pressing plate; 604, rotating handle; 7, ejection hole; 8, ejection mechanism; 801, U-shaped plate B; 802, chute; 803, motor; 804, rotating screw B; 805, moving sleeve; 806, ejection plate; 807, sliding plate; 9, bracket; 10, anti-slip pad. Specific implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , the present utility model provides a technical solution: a cold extrusion die for small forgings, including a workbench 1, a U-shaped plate A 2 is connected to the upper end of the workbench 1, an extrusion component 3 is arranged on the U-shaped plate A 2, an ejection hole 7 is opened in the middle of the upper end of the workbench 1, a lower die 5 is arranged in the middle of the upper end of the workbench 1, the size of the lower die 5 is larger than the opening size of the ejection hole 7, a limit component 6 is arranged on the upper end of the workbench 1, and an ejection mechanism 8 is arranged at one end of the workbench 1 away from the U-shaped plate A 2. The ejection mechanism 8 includes a U-shaped plate B 801 connected to the workbench 1, chutes 802 are opened on both sides of the inner wall of the U-shaped plate B 801, a motor 803 is connected to the middle of the upper end of the U-shaped plate B 801, the output end of the motor 803 is connected to a rotating screw B 804, the rotating screw B 804 is threadedly connected to a moving sleeve 805, the upper end of the moving sleeve 805 is connected to an ejection plate 806, and two symmetrically arranged sliding plates 807 are connected to the outer peripheral side of the moving sleeve 805, and the sliding plates 807 are slidably connected to the chutes 802.

[0023] Specifically, the extrusion assembly 3 includes an electric push rod 301 connected to the middle of the lower end of the U-shaped plate A2. The output end of the electric push rod 301 is connected to an upper die 302. Guide columns 303 are connected to both sides of the upper end of the upper die 302, and the guide columns 303 are slidably connected to the U-shaped plate A2. The limiting assembly 6 includes a return sleeve 601 connected to the workbench 1. Rotating screw rods A602 are threadedly connected to both sides of the return sleeve 601. The rotating screw rods A602 are connected to a pressing plate 603, and a rotating handle 604 is connected to the end of the rotating screw rod A602 away from the pressing plate 603. Brackets 9 are connected to each corner of the lower end of the workbench 1, and each bracket 9 is connected to an anti-slip pad 10. A limiting plate 304 is connected to the upper end of the guide column 303, and the outer diameter of the limiting plate 304 is larger than the outer diameter of the guide column 303. A power supply 4 is arranged on one side of the U-shaped plate A2, and the power supply 4 is electrically connected to the electric push rod 301 and the motor 803. The size of the ejector plate 806 is smaller than the opening size of the ejection hole 7.

[0024] Working principle: Place the forging into the lower die 5. Next, supply power to the electric push rod 301 through the power supply 4. At this time, the output end of the electric push rod 301 drives the upper die 302 to move downward, thereby driving the guide columns 303 to slide with the U-shaped plate A2. At this time, the forging is cold-extruded. Next, supply power to the motor 803 through the power supply 4. At this time, the output end of the motor 803 drives the rotating screw rod B804 to rotate, thereby driving the moving sleeve 805 to move upward, and then driving the ejector plate 806 to move upward. At this time, the moving sleeve 805 drives the sliding plate 807 to move in the sliding groove 802. At this time, the ejector plate 806 can eject the forging. When it is necessary to replace different lower dies 5, the rotating handle 604 can be rotated at this time, thereby driving the rotating screw rod A602 to rotate, and then driving the pressing plate 603 to move away from the lower die 5. Next, another lower die 5 can be replaced. Then, reverse the rotating handle 604. Stop when the pressing plate 603 presses against the lower die 5. This improves the applicability of the device. The utility model realizes the automatic ejection of the cold-extruded forging, preventing the forging from being inconvenient to take out and improving the efficiency of cold extrusion.

[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small forging cold extrusion die, comprising a workbench (1), characterized in that: The upper end of the workbench (1) is connected to a U-shaped plate A (2), an extrusion assembly (3) is arranged on the U-shaped plate A (2), an ejection hole (7) is opened in the middle of the upper end of the workbench (1), a lower mold (5) is arranged in the middle of the upper end of the workbench (1), the size of the lower mold (5) is larger than the opening size of the ejection hole (7), a limit assembly (6) is arranged on the upper end of the workbench (1), and an ejection mechanism (8) is arranged at one end of the workbench (1) away from the U-shaped plate A (2), the ejection mechanism (8) comprises a U-shaped plate connected to the workbench (1) B (801), both sides of the inner wall of the U-shaped plate B (801) are provided with sliding grooves (802), the middle part of the upper end of the U-shaped plate B (801) is connected to a motor (803), the output end of the motor (803) is connected to a rotating screw B (804), the rotating screw B (804) is threadedly connected to a moving sleeve (805), the upper end of the moving sleeve (805) is connected to an ejection plate (806), the outer peripheral side of the moving sleeve (805) is connected to two symmetrically arranged slide plates (807), and the slide plates (807) are slidably connected to the sliding grooves (802).

2. The small forging cold extrusion die according to claim 1, characterized in that: The extrusion assembly (3) comprises an electric push rod (301) connected to the middle part of the lower end of the U-shaped plate A (2); the output end of the electric push rod (301) is connected to an upper mold (302); both sides of the upper end of the upper mold (302) are connected to guide pillars (303); the guide pillars (303) are slidably connected to the U-shaped plate A (2).

3. The small forging cold extrusion die according to claim 2, characterized in that: The limiting assembly (6) comprises a circular sleeve (601) connected to the workbench (1), both sides of the circular sleeve (601) are threadedly connected to rotating screws A (602), the rotating screws A (602) are connected to a clamping plate (603), and the end of the rotating screws A (602) away from the clamping plate (603) is connected to a rotating handle (604).

4. The small forging cold extrusion die according to claim 1, characterized in that: Each corner at the lower end of the workbench (1) is connected to a bracket (9), and each bracket (9) is connected to an anti-slip pad (10).

5. The small forging cold extrusion die according to claim 2, characterized in that: The upper end of the guide column (303) is connected to a limiting plate (304), and the outer diameter of the limiting plate (304) is greater than the outer diameter of the guide column (303).

6. The small forging cold extrusion die according to claim 3, characterized in that: A power source (4) is provided on one side of the U-shaped plate A (2), and the power source (4) is electrically connected to the electric push rod (301) and the motor (803).

7. The small forging cold extrusion die according to claim 1, characterized in that: The size of the ejection plate (806) is smaller than the opening size of the ejection hole (7).

Images