Cold extrusion shaft die for small module gears

Abstract

The utility model discloses a cold extrusion axle mould for small modulus gear, including the bottom plate, the upper surface sliding of bottom plate is provided with first accommodating box, the top of first accommodating box is detachably provided with lower mould, the top of lower mould is provided with mould cavity, the inner chamber of first accommodating box is vertically fixedly connected with first hydraulic oil cylinder, the top of first hydraulic oil cylinder is vertically fixedly connected with vertical rod, the utility model relates to cold extrusion axle mould technical field. This cold extrusion axle mould for small modulus gear, through the completion of cold extrusion, drive mechanism drives first accommodating box to move to the front end of bottom plate, can through the first hydraulic oil cylinder elongation, can through vertical rod and drive top plate to go up, and top plate can push out the finished product axle after extrusion, and the staff can carry out manual material taking, and the feeding is all in the safe area, guarantees the personal safety of operator in the processing.

Description

Technical Field

[0001] This utility model relates to the field of cold extrusion shaft mold technology, specifically a cold extrusion shaft mold for small module gears. Background Technology

[0002] Cold extrusion is a precision plastic volume forming technology. It involves placing a metal blank into a mold cavity while it is cold, and using strong pressure and speed to force the metal out of the mold cavity to obtain an extruded part with the desired shape, size and mechanical properties. This process mainly relies on the mold to control the metal flow and achieve the forming of the part. Cold extrusion technology has the characteristics of high precision, high efficiency and high quality and low consumption, and is widely used in the large-scale production of small and medium-sized forgings.

[0003] Chinese patent CN221312156U discloses a cold extrusion shaft mold for automotive parts. The ejector is detachably connected to the shaping base and is located below the shaping base. The vibrating element is fixedly connected to the ejector and is located inside the base. In actual use, four fixing rods prevent the upper and lower molds from shifting. The blank is placed above the shaping base. The hydraulic cylinder pushes the upper mold downwards, and the forming rod extrudes the blank downwards to form it. The formed blank moves through the vibrating element, and the lower mold and shaping base vibrate to demold the formed blank. If the formed blank is still difficult to remove, the ejector pushes the vibrating element upwards, thereby pushing the shaping base upwards to eject the formed blank from the lower mold.

[0004] However, the cold extrusion shaft mold used for small module gears has a lower mold that does not have a moving function during use. This means that when loading and unloading materials, the workers' hands are located below the upper mold, resulting in low safety during the production process. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a cold extrusion shaft die for small module gears, which solves the problem that the lower die of cold extrusion shaft dies for small module gears lacks mobility during use, resulting in low safety during production and processing.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a cold extrusion shaft mold for small module gears, including a base plate, a first receiving box slidably disposed on the upper surface of the base plate, a lower mold detachably disposed on the top of the first receiving box, and a mold cavity opened on the top of the lower mold;

[0007] A first hydraulic cylinder is vertically fixedly connected to the inner cavity of the first receiving box. A vertical rod is vertically fixedly connected to the top of the first hydraulic cylinder. The top of the vertical rod extends movably into the inner cavity of the mold cavity and is fixedly connected to a top plate.

[0008] A second receiving box is fixedly connected to the rear side of the upper surface of the base plate. The front end of the second receiving box is provided with a push plate that moves in the horizontal direction through a drive mechanism. The front end of the push plate is fixedly connected to the rear side of the first receiving box.

[0009] Furthermore, a slide rail is fixedly connected laterally on the upper surface of the base plate from its front end to its rear end, and a sliding block is slidably disposed on the surface of the slide rail, with the bottom of the first receiving box fixedly connected to the top of the sliding block.

[0010] Furthermore, a plurality of support rods are vertically fixedly connected to the upper surface of the base plate, and a connecting plate is fixedly connected to the top of the support rods. A second hydraulic cylinder is vertically fixedly connected to the upper surface of the connecting plate. The bottom end of the second hydraulic cylinder extends movably to the bottom of the connecting plate and is fixedly connected to a lifting plate. A positioning plate is detachably provided on the lower surface of the lifting plate, and an upper mold rod adapted to the mold cavity is fixedly connected to the lower surface of the positioning plate.

[0011] Furthermore, a number of mounting blocks are fixedly connected to the lower surface of the base plate, and threaded holes are provided at the bottom of the mounting blocks.

[0012] Furthermore, the driving mechanism includes a motor, a threaded rod, a threaded sleeve, and a push plate. The motor is fixedly connected to the rear end of the inner wall of the second receiving box, the threaded rod is fixedly connected to the output shaft of the motor, the threaded sleeve is threadedly connected to the surface of the threaded rod, and the rear end of the push plate is pulled out and extended into the inner cavity of the second receiving box, and is fixedly connected to the surface of the threaded sleeve.

[0013] Furthermore, both the first and second containers have inspection covers installed on their surfaces by means of several screws.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: after the drive mechanism is working, the first receiving box can be moved. When the first receiving box moves the lower mold to the front end of the base plate, the operator can place the blank into the inner cavity of the mold cavity. Then, the drive mechanism moves the lower mold to the rear end to the middle, where cold extrusion can be performed. After cold extrusion is completed, the drive mechanism drives the first receiving box to the front end of the base plate. Then, the first hydraulic cylinder extends, and the top plate is raised by the vertical rod. The top plate can then eject the extruded finished shaft, and the operator can manually pick up the material. Both loading and unloading are done in a safe area, ensuring the personal safety of the operators during the processing. This is beneficial for the production and processing of shafts for small module gears. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the bottom plate and the upper mold rod of this utility model;

[0017] Figure 3 This is a side sectional view of the present invention.

[0018] Figure 4 This is a schematic diagram of the drive mechanism in this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the first hydraulic cylinder and the top plate in this utility model.

[0020] In the diagram: 1. Base plate; 2. Slide rail; 3. Sliding block; 4. First receiving box; 5. First hydraulic cylinder; 6. Lower mold; 7. Mold cavity; 8. Top plate; 9. Vertical rod; 10. Support rod; 11. Connecting plate; 12. Second hydraulic cylinder; 13. Lifting plate; 14. Positioning plate; 15. Upper mold rod; 16. Mounting block; 17. Second receiving box; 18. Motor; 19. Threaded rod; 20. Threaded sleeve; 21. Push plate; 22. Screw; 23. Inspection cover plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This utility model provides a technical solution: a cold extrusion shaft mold for small module gears, including a base plate 1, a first receiving box 4 slidably disposed on the upper surface of the base plate 1, a lower mold 6 detachably disposed on the top of the first receiving box 4, and a mold cavity 7 opened on the top of the lower mold 6.

[0023] The inner cavity of the first receiving box 4 is vertically fixedly connected to a first hydraulic cylinder 5. The top of the first hydraulic cylinder 5 is vertically fixedly connected to a vertical rod 9. The top of the vertical rod 9 extends movably into the inner cavity of the mold cavity 7 and is fixedly connected to a top plate 8.

[0024] A second receiving box 17 is fixedly connected to the rear side of the upper surface of the base plate 1. The front end of the second receiving box 17 is provided with a push plate 21 that moves in the horizontal direction through a drive mechanism. The front end of the push plate 21 is fixedly connected to the rear side of the first receiving box 4.

[0025] After the drive mechanism is activated, it can push the first receiving box 4 to move. When the first receiving box 4 moves the lower mold 6 to the front end of the base plate 1, the operator can place the blank in the inner cavity of the mold cavity 7. Then, the drive mechanism drives the lower mold 6 to move to the rear end to the middle, and the cold extrusion work can be carried out.

[0026] After cold extrusion, the drive mechanism drives the first receiving box 4 to move to the front end of the base plate 1. Then, the first hydraulic cylinder 5 extends and the top plate 8 is lifted by the vertical rod 9. The top plate 8 can then eject the extruded finished shaft, and the workers can manually pick up the material. The loading and unloading are both in a safe area, ensuring the personal safety of the operators during the processing and facilitating the production and processing of small module gear shafts.

[0027] A slide rail 2 is fixedly connected laterally from its front end to its rear end on the upper surface of the base plate 1. A sliding block 3 is slidably disposed on the surface of the slide rail 2. The bottom of the first receiving box 4 is fixedly connected to the top of the sliding block 3.

[0028] Several support rods 10 are vertically fixedly connected to the upper surface of the base plate 1. A connecting plate 11 is fixedly connected to the top of the support rods 10. A second hydraulic cylinder 12 is vertically fixedly connected to the upper surface of the connecting plate 11.

[0029] The bottom end of the second hydraulic cylinder 12 extends movably to the bottom of the connecting plate 11 and is fixedly connected to the lifting plate 13. The lower surface of the lifting plate 13 is detachably provided with a positioning plate 14, and the lower surface of the positioning plate 14 is fixedly connected with an upper mold rod 15 that is adapted to the mold cavity 7.

[0030] After the drive mechanism moves the lower mold 6 to the middle of the upper surface of the base plate 1, the mold cavity 7 is located below the upper mold rod 15. After the second hydraulic cylinder 12 extends, it can drive the upper mold rod 15 into the inner cavity of the mold cavity 7, thereby extruding the blank placed in the inner cavity of the mold cavity 7.

[0031] Several mounting blocks 16 are fixedly connected to the lower surface of the base plate 1. The bottom of the mounting block 16 is provided with threaded holes. The surfaces of the first receiving box 4 and the second receiving box 17 are both disassembled and provided with inspection covers 23 by several screws 22.

[0032] The drive mechanism includes a motor 18, a threaded rod 19, a threaded sleeve 20, and a push plate 21. The motor 18 is fixedly connected to the rear end of the inner wall of the second receiving box 17. The threaded rod 19 is fixedly connected to the output shaft of the motor 18. The threaded sleeve 20 is threadedly connected to the surface of the threaded rod 19. The rear end of the push plate 21 is pulled out and extended into the inner cavity of the second receiving box 17 and is fixedly connected to the surface of the threaded sleeve 20.

[0033] After the motor 18 drives the threaded rod 19 to rotate, it can drive the threaded sleeve 20 to move along the surface of the threaded rod 19. With the connection of the push plate 21, the first receiving box 4 can be pushed and pulled to move in the horizontal direction.

[0034] During operation, after the drive mechanism is activated, it can push the first receiving box 4 to move. When the first receiving box 4 moves the lower mold 6 to the front end of the base plate 1, the operator can place the blank into the inner cavity of the mold cavity 7. Then, the drive mechanism drives the lower mold 6 to move to the rear end to the middle, and cold extrusion can be performed. After the cold extrusion is completed, the drive mechanism drives the first receiving box 4 to move to the front end of the base plate 1. Then, the first hydraulic cylinder 5 can extend, and the vertical rod 9 can drive the top plate 8 to rise. The top plate 8 can then eject the extruded finished product shaft, and the operator can manually remove the material.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cold extrusion shaft die for small module gears, comprising a base plate (1), characterized in that: A first receiving box (4) is slidably disposed on the upper surface of the base plate (1), and a lower mold (6) is detachably disposed on the top of the first receiving box (4), and a mold cavity (7) is opened on the top of the lower mold (6); The inner cavity of the first receiving box (4) is vertically fixedly connected to a first hydraulic cylinder (5), and the top of the first hydraulic cylinder (5) is vertically fixedly connected to a vertical rod (9). The top of the vertical rod (9) extends movably into the inner cavity of the mold cavity (7) and is fixedly connected to a top plate (8). A second receiving box (17) is fixedly connected to the rear side of the upper surface of the base plate (1). The front end of the second receiving box (17) is provided with a push plate (21) that moves in the horizontal direction through a drive mechanism. The front end of the push plate (21) is fixedly connected to the rear side of the first receiving box (4).

2. The cold extrusion shaft die for small module gears according to claim 1, characterized in that: A slide rail (2) is fixedly connected laterally from its front end to its rear end on the upper surface of the base plate (1). A sliding block (3) is slidably disposed on the surface of the slide rail (2). The bottom of the first receiving box (4) is fixedly connected to the top of the sliding block (3).

3. A cold extrusion shaft die for small module gears according to claim 1, characterized in that: A plurality of support rods (10) are vertically fixedly connected to the upper surface of the base plate (1). A connecting plate (11) is fixedly connected to the top of the support rods (10). A second hydraulic cylinder (12) is vertically fixedly connected to the upper surface of the connecting plate (11). The bottom end of the second hydraulic cylinder (12) extends movably to the bottom of the connecting plate (11) and is fixedly connected to a lifting plate (13). A positioning plate (14) is detachably provided on the lower surface of the lifting plate (13). An upper mold rod (15) adapted to the mold cavity (7) is fixedly connected to the lower surface of the positioning plate (14).

4. A cold extrusion shaft die for small module gears according to claim 1, characterized in that: The lower surface of the base plate (1) is fixedly connected with several mounting blocks (16), and the bottom of the mounting blocks (16) is provided with threaded holes.

5. A cold extrusion shaft die for small module gears according to claim 1, characterized in that: The drive mechanism includes a motor (18), a threaded rod (19), a threaded sleeve (20), and a push plate (21). The motor (18) is fixedly connected to the rear end of the inner wall of the second receiving box (17). The threaded rod (19) is fixedly connected to the output shaft of the motor (18). The threaded sleeve (20) is threadedly connected to the surface of the threaded rod (19). The rear end of the push plate (21) is pulled out and extended into the inner cavity of the second receiving box (17) and is fixedly connected to the surface of the threaded sleeve (20).

6. A cold extrusion shaft die for small module gears according to claim 1, characterized in that: Both the first container (4) and the second container (17) have inspection covers (23) installed on their surfaces by means of several screws (22).

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