Sectional type cold extrusion forming die for output shaft
By designing a quickly replaceable mold structure and a motor-driven output shaft removal mechanism, the problem that existing molds cannot be replaced as needed is solved, and the rapid efficiency of mold replacement and output shaft removal is achieved.
Patent Information
- Application Number
- CN202421934502.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The existing output shaft segmented cold extrusion molding mold cannot replace the mold at the corresponding position as needed, resulting in all the molds that need to be replaced when replacing the molds.
A segmented cold extrusion molding mold including a workbench, upper die, middle die and lower die is designed. The rapid replacement of the mold is achieved through the design of the card slot and the block, and the rapid removal of the output shaft is achieved through the cooperation of the bidirectional threaded rod and the sliding plate driven by the motor.
It realizes rapid replacement of molds and rapid removal of output shafts, improving production efficiency and flexibility.
Smart Images
Figure CN223028282U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of output shaft production, in particular to a segmented cold extrusion forming die for an output shaft. Background Technique
[0002] The segmented cold extrusion forming die equipment is an industrial equipment for manufacturing output shafts. It realizes the manufacture of output shafts by cold extruding metal materials into the required shapes. This equipment consists of a die, a pressure system, and a control system. By gradually extruding metal materials, output shafts with high precision and high strength can be obtained, meeting the requirements of industrial production.
[0003] The segmented cold extrusion forming die can improve the material utilization rate, reduce material loss; has low manufacturing cost and saves energy; can produce parts with complex shapes, improve product precision and quality; has high production efficiency and saves the production cycle; reduces subsequent processing procedures and improves production efficiency; has a long die life and reduces production costs; can realize automated production, improve production efficiency and consistency.
[0004] However, the existing segmented cold extrusion forming die for output shafts cannot replace the die at the corresponding position as needed, resulting in the need to replace all the dies when the die needs to be replaced. Therefore, a segmented cold extrusion forming die for an output shaft is proposed to solve the above problems. Content of the Utility Model
[0005] In order to make up for the above deficiencies, the utility model provides a segmented cold extrusion forming die for an output shaft, aiming to improve the problem that the die at the corresponding position cannot be replaced as needed in the prior art.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A segmented cold extrusion forming die for an output shaft, including a workbench, an upper die is slidably connected inside the workbench, a middle die is slidably connected inside the workbench, a lower die is slidably connected inside the workbench, clamping grooves are opened on the left sides of the upper die, the middle die and the lower die, a plurality of clamping blocks are slidably connected inside the workbench, and the plurality of clamping blocks are respectively clamped inside the plurality of clamping grooves. A pull rod is fixedly connected to the left side of each of the plurality of clamping blocks, a spring is sleeved on the outer circumference of each of the plurality of pull rods, an ejection assembly is arranged inside the workbench, a plurality of support rods are fixedly connected to the top of the workbench, a support plate is fixedly connected to the top of the plurality of support rods, and a punch is fixedly connected to the bottom of the support plate.
[0007] Further, the ejecting assembly includes a sliding plate which is slidably connected inside the workbench. A ejecting rod is fixedly connected to the top of the sliding plate. A plurality of first sliders are slidably connected to the bottom of the sliding plate. Connecting rods are rotatably connected to the bottoms of the plurality of first sliders. The other ends of the plurality of connecting rods are rotatably connected to second sliders. The plurality of second sliders are all slidably connected inside the workbench. A driving assembly is arranged inside the workbench.
[0008] Further, a top plate is slidably connected inside the lower die. The top of the ejecting rod abuts against the bottom of the top plate.
[0009] Further, the driving assembly includes a motor which is fixedly connected inside the workbench. A bidirectional threaded rod is fixedly connected to the output end of the motor. Two moving brackets are threadedly connected to the outer periphery of the bidirectional threaded rod. The plurality of second sliders are respectively fixedly connected to the front and rear ends of the two moving brackets.
[0010] Further, a plurality of limiting grooves are formed inside the workbench. The plurality of pull rods are respectively slidably connected inside the plurality of limiting grooves. Limiting blocks are fixedly connected to the left sides of the plurality of pull rods.
[0011] Further, handles are fixedly connected to the fronts of the upper die, the middle die and the lower die. Pulling hands are fixedly connected to the left sides of the plurality of limiting blocks.
[0012] Further, the aperture size of the forming hole of the upper die is larger than that of the forming hole of the middle die, and the aperture size of the forming hole of the middle die is larger than that of the forming hole of the lower die.
[0013] Further, a synchronizing rod is rotatably connected to the middle of the plurality of connecting rods. A limiting frame is rotatably connected to the middle of the bidirectional threaded rod. The limiting frame is fixedly connected inside the workbench.
[0014] The utility model has the following beneficial effects:
[0015] 1. In the utility model, when it is necessary to replace one of the molds inside the segmented mold, the corresponding pull handle of the mold can be pulled to make the clamping block leave the clamping groove of the current mold, so that the current mold loses its fixation. Then, the corresponding handle can be pulled to remove the current mold for replacement, thereby enabling quick adjustment of the size of one of the molds, making the size of the produced mold more flexible.
[0016] 2. In the utility model, when it is necessary to take out the output shaft inside the mold, only the motor needs to be started to drive the bidirectional threaded rod to rotate. By driving the second slider to change the inclination angle of the connecting rod, the sliding plate can be moved upward, the ejecting rod can be moved upward, and the top plate can extrude the output shaft, thereby improving the blanking speed. Description of the Drawings
[0017] Figure 1 A three-dimensional schematic diagram of a segmented cold extrusion forming die for an output shaft proposed by the present utility model;
[0018] Figure 2 A structural schematic diagram of a card slot of a segmented cold extrusion forming die for an output shaft proposed by the present utility model;
[0019] Figure 3 A structural schematic diagram of a clamping block of a segmented cold extrusion forming die for an output shaft proposed by the present utility model;
[0020] Figure 4 A structural schematic diagram of a workbench of a segmented cold extrusion forming die for an output shaft proposed by the present utility model;
[0021] Figure 5 A structural schematic diagram of a sliding plate of a segmented cold extrusion forming die for an output shaft proposed by the present utility model;
[0022] Figure 6 is Figure 5 An enlarged view of part A in
[0023] Legend description:
[0024] 1. Workbench; 2. Upper die; 3. Middle die; 4. Lower die; 5. Handle; 6. Card slot; 7. Limit slot; 8. Clamping block; 9. Pull rod; 10. Spring; 11. Limit block; 12. Pull handle; 13. Support rod; 14. Support plate; 15. Punch; 16. Top plate; 17. Sliding plate; 18. Ejector rod; 19. Slide block one; 20. Connecting rod; 21. Slide block two; 22. Motor; 23. Bidirectional threaded rod; 24. Moving frame; 25. Synchronous rod; 26. Limit frame. Specific implementation manners
[0025] 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 of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0026] Refer to Figure 1 - Figure 3, an embodiment provided by the present utility model: a segmented cold extrusion forming die for an output shaft, comprising a workbench 1, an upper die 2 is slidably connected inside the workbench 1, a middle die 3 is slidably connected inside the workbench 1, a lower die 4 is slidably connected inside the workbench 1, clamping grooves 6 are formed on the left sides of the upper die 2, the middle die 3 and the lower die 4, a plurality of clamping blocks 8 are slidably connected inside the workbench 1, the plurality of clamping blocks 8 are respectively clamped inside the plurality of clamping grooves 6, a pull rod 9 is fixedly connected to the left side of each of the plurality of clamping blocks 8, a spring 10 is sleeved on the outer periphery of each of the plurality of pull rods 9, an ejection assembly is arranged inside the workbench 1, a plurality of support rods 13 are fixedly connected to the top of the workbench 1, a support plate 14 is fixedly connected to the tops of the plurality of support rods 13, a punch 15 is fixedly connected to the bottom of the support plate 14, a plurality of limiting grooves 7 are formed inside the workbench 1, the plurality of pull rods 9 are respectively slidably connected inside the plurality of limiting grooves 7, a limiting block 11 is fixedly connected to the left side of each of the plurality of pull rods 9, handles 5 are fixedly connected to the front ends of the upper die 2, the middle die 3 and the lower die 4, and a handle 12 is fixedly connected to the left side of each of the plurality of limiting blocks 11.
[0027] Specifically, the workbench 1 is used to support each part of the parts. The upper die 2, the middle die 3 and the lower die 4 are arranged inside the workbench 1 and are used to cooperate in producing the output shaft. Handles 5 are arranged at the front ends of the upper die 2, the middle die 3 and the lower die 4 and are used for the operator to better pull each die. Clamping grooves 6 are formed on the left sides of the upper die 2, the middle die 3 and the lower die 4 and are used to clamp the clamping blocks 8 into the clamping grooves 6 to fix the upper die 2, the middle die 3 and the lower die 4 inside the workbench 1. A plurality of limiting grooves 7 are arranged inside the workbench 1 and are used to provide a sliding space for the plurality of pull rods 9. The pull rod 9 is fixed to the clamping block 8 and is used to pull the clamping block 8 through the pull rod 9. A spring 10 is arranged on the outer periphery of the pull rod 9 and is used to reset the clamping block 8. A limiting block 11 is arranged on the left side of the pull rod 9 and is used to prevent the spring 10 from resetting the clamping block 8 too much. A handle 12 is arranged on the left side of the limiting block 11 and is used for the operator to better pull the clamping block 8. Support rods 13 are arranged on the top of the workbench 1 and are used to support the support plate 14. A punch 15 is arranged at the bottom of the support plate 14 and is used for cold extruding the output shaft.
[0028] Refer to Figure 4 - Figure 6, the ejection assembly includes a sliding plate 17 which is slidably connected inside the workbench 1. A ejector rod 18 is fixedly connected to the top of the sliding plate 17. A plurality of first sliders 19 are slidably connected to the bottom of the sliding plate 17. Connecting rods 20 are rotatably connected to the bottoms of the plurality of first sliders 19. The other ends of the plurality of connecting rods 20 are rotatably connected to second sliders 21. The plurality of second sliders 21 are all slidably connected inside the workbench 1. A driving assembly is arranged inside the workbench 1. A top plate 16 is slidably connected inside the lower die 4. The top of the ejector rod 18 abuts against the bottom of the top plate 16. The driving assembly includes a motor 22 which is fixedly connected inside the workbench 1. The output end of the motor 22 is fixedly connected to a bidirectional threaded rod 23. Two moving brackets 24 are threadedly connected to the outer periphery of the bidirectional threaded rod 23. The plurality of second sliders 21 are respectively fixedly connected to the front and rear ends of the two moving brackets 24. A synchronizing rod 25 is rotatably connected to the middle of the plurality of connecting rods 20. A limiting frame 26 is rotatably connected to the middle of the bidirectional threaded rod 23. The limiting frame 26 is fixedly connected inside the workbench 1.
[0029] Specifically, the top plate 16 is arranged inside the lower die 4 and is used to move upward to eject the output shaft. The sliding plate 17 is arranged inside the workbench 1 and is used to push the ejector rod 18 so as to move the top plate 16 upward. A plurality of first sliders 19 are arranged at the bottom of the sliding plate 17 and are used to connect the first sliders 19 and the second sliders 21 through the connecting rods 20. And when the inclination angle of the connecting rod 20 changes, the sliding plate 17 moves. A motor 22 is arranged inside the workbench 1 and the motor 22 is used to drive the bidirectional threaded rod 23 to rotate. Two moving brackets 24 arranged on the outer periphery of the bidirectional threaded rod 23 move in opposite directions. The moving brackets 24 are used to drive the second sliders 21 to move. The synchronizing rod 25 is arranged in the middle of the connecting rod 20 and is used to make the inclination angles of the plurality of connecting rods 20 the same. The limiting frame 26 is arranged in the middle of the bidirectional threaded rod 23 and is used to prevent the two moving brackets 24 from colliding.
[0030] Refer to Figure 4 , the aperture size of the forming hole of the upper die 2 is larger than that of the forming hole of the middle die 3, and the aperture size of the forming hole of the middle die 3 is larger than that of the forming hole of the lower die 4.
[0031] Specifically, the aperture size of the forming hole of the upper die 2 is larger than that of the forming hole of the middle die 3, and the aperture size of the forming hole of the middle die 3 is larger than that of the forming hole of the lower die 4, which is used to ensure that the top plate 16 will not be blocked when ejecting the output shaft.
[0032] Working principle: When it is necessary to replace one of the upper die 2, the middle die 3, and the lower die 4 to change the diameter of one end of the output shaft, it is necessary to pull the corresponding handle 12, so that the pull rod 9 moves. When the pull rod 9 moves and pulls the clamping block 8 away from the corresponding clamping groove 6, the corresponding die loses its restraint, and the handle 5 can be pulled to remove one of the dies for replacement. When installing a new die, first pull the handle 12 to make the clamping block 8 enter the limit groove 7, install the new die in the original position, and release the force on the handle 12. The spring 10 will release the tension to snap the clamping block 8 into the clamping groove 6, thus completing the installation successfully.
[0033] When it is necessary to take out the output shaft after extrusion is completed, start the motor 22 to rotate the bidirectional threaded rod 23, so that the two moving frames 24 move, changing the inclination angle of the connecting rod 20, so that the sliding plate 17 moves upward, and the top plate 16 is pushed by the ejector rod 18, thus extruding the extruded output shaft, and the output shaft can be quickly extruded, improving the blanking speed.
[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A segmented cold extrusion forming die for an output shaft, comprising a workbench (1), characterized in that: The workbench (1) is slidably connected to an upper mold (2), the workbench (1) is slidably connected to a middle mold (3), the workbench (1) is slidably connected to a lower mold (4), the upper mold (2), the middle mold (3) and the lower mold (4) are all provided with a slot (6) on their left sides, the workbench (1) is slidably connected to a plurality of blocks (8), the plurality of blocks (8) are respectively engaged in the plurality of slots (6), the left sides of the plurality of blocks (8) are all fixedly connected to pull rods (9), the outer circumferences of the plurality of pull rods (9) are all sleeved with springs (10), an ejection assembly is arranged inside the workbench (1), the top of the workbench (1) is fixedly connected to a plurality of support rods (13), the tops of the plurality of support rods (13) are fixedly connected to a support plate (14), and the bottom of the support plate (14) is fixedly connected to a punch (15).
2. A segmented cold extrusion forming die for an output shaft according to claim 1, characterized in that: The ejection assembly comprises a sliding plate (17), the sliding plate (17) is slidably connected to the inside of the workbench (1), the top of the sliding plate (17) is fixedly connected to a push rod (18), the bottom of the sliding plate (17) is slidably connected to a plurality of sliding blocks (19), the bottoms of the plurality of sliding blocks (19) are all rotatably connected to a connecting rod (20), the other ends of the plurality of connecting rods (20) are all rotatably connected to a sliding block (21), the plurality of sliding blocks (21) are all slidably connected to the inside of the workbench (1), and a driving assembly is arranged inside the workbench (1).
3. The segmented cold extrusion forming die for the output shaft according to claim 2, characterized in that: The lower mold (4) is slidably connected to a top plate (16), and the top of the top rod (18) abuts against the bottom of the top plate (16).
4. The segmented cold extrusion forming die for the output shaft according to claim 2, characterized in that: The driving assembly comprises a motor (22), the motor (22) is fixedly connected inside the workbench (1), a bidirectional threaded rod (23) is fixedly connected to the output end of the motor (22), the outer circumference of the bidirectional threaded rod (23) is threadedly connected to two moving frames (24), and the plurality of sliding blocks (21) are respectively fixedly connected to the front and rear ends of the two moving frames (24).
5. The segmented cold extrusion forming die for the output shaft according to claim 1, characterized in that: A plurality of limit grooves (7) are provided inside the workbench (1), and a plurality of pull rods (9) are respectively slidably connected inside the plurality of limit grooves (7), and the left sides of the plurality of pull rods (9) are fixedly connected to limit blocks (11).
6. The segmented cold extrusion forming die for the output shaft according to claim 5, characterized in that: The front ends of the upper mold (2), the middle mold (3) and the lower mold (4) are all fixedly connected with handles (5), and the left sides of the plurality of limit blocks (11) are all fixedly connected with handles (12).
7. The segmented cold extrusion forming die for an output shaft according to claim 1, characterized in that: The diameter of the forming hole of the upper die (2) is larger than the diameter of the forming hole of the middle die (3), and the diameter of the forming hole of the middle die (3) is larger than the diameter of the forming hole of the lower die (4).
8. The segmented cold extrusion forming die for the output shaft according to claim 4, characterized in that: The middle parts of the plurality of connecting rods (20) are rotatably connected to a synchronization rod (25), the middle parts of the bidirectional threaded rods (23) are rotatably connected to a limiting frame (26), and the limiting frame (26) is fixedly connected to the inside of the workbench (1).