Press fitting equipment for elastic cylindrical pin production
By designing a flexible cylindrical pin pressing device that includes a worktable, pressing components, limiting components, and control components, the problem of low efficiency in traditional manual pressing is solved, and the rapid positioning and fixing of flexible cylindrical pins is achieved, thereby improving pressing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI PINES METAL PROD CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-15
AI Technical Summary
In the existing technology, the traditional manual pressing method for elastic cylindrical pins is inefficient, with long manual alignment time and increased workload for workers.
A pressing device is designed, comprising a worktable, a pressing component, a limiting component, and a control component. The device uses a motor to drive the positioning and fixing of elastic cylindrical pins, utilizes the limiting component for rapid positioning and fixing, and the control component automatically ejects the pressed elastic cylindrical pins.
It enables rapid positioning and fixing of flexible cylindrical pins, improves pressing efficiency, and reduces the workload of workers.
Smart Images

Figure CN224239420U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cylindrical pin production technology, and in particular, it relates to a press-fitting device for producing elastic cylindrical pins. Background Technology
[0002] A flexible cylindrical pin (commonly known as a spring pin or elastic pin) is a hollow cylindrical mechanical fastener with elasticity, widely used in mechanical assembly. The flexible cylindrical pin is a fastener that achieves a self-locking function through radial elastic deformation. In the traditional assembly process of flexible cylindrical pins, manual pressing is still the mainstream method for small and medium-sized enterprises.
[0003] Operators must manually align the pins with the workpiece holes, and then apply force using a hammer or simple clamps to complete the assembly. This method has a significant efficiency bottleneck: manual alignment takes a lot of time, and workers often need to spend a lot of time aligning the elastic cylindrical pins that need to be pressed in, which greatly affects work efficiency and increases the workload of workers.
[0004] The purpose of this invention is to provide a press-fitting device for producing flexible cylindrical pins, so as to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to provide a press-fitting device for producing flexible cylindrical pins, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a press-fitting device for producing elastic cylindrical pins, comprising a worktable, a mounting plate on the top of the worktable, a press-fitting component for press-fitting elastic cylindrical pins at the bottom of the mounting plate, a mounting platform, a plurality of placement frames on the top of the mounting platform, a motor inside the mounting platform, a motion component for driving the placement frames to rotate at the output end of the motor, a limiting component for positioning and fixing the elastic cylindrical pins in the placement frames, and a control component for ejecting the press-fitted elastic cylindrical pins on one side of the mounting platform.
[0007] Furthermore, the motion component includes a second gear disposed at the output end of the motor, a rotating disk disposed on the top of the second gear, a plurality of mounting brackets disposed on the outer side of the rotating disk, and a first gear disposed at the bottom of each mounting bracket.
[0008] Furthermore, the first gear and the second gear are meshed together, and a toothed ring is provided on the inner side of the rotating disk, with the first gear and the toothed ring meshing together.
[0009] Furthermore, the pressing assembly includes a pressing cylinder disposed on the top of the mounting plate, the extension end of the pressing cylinder is provided with a pressing tool, the limit position includes telescopic rods symmetrically disposed on both sides of the placement frame, and the extension end of each telescopic rod is provided with an arc-shaped fixing plate.
[0010] Furthermore, a positioning post is slidably connected inside the placement frame, a second spring is provided at the bottom of the positioning post, a sliding groove is provided on one side of the placement frame, a first spring is provided on the side of the positioning post facing the sliding groove, and a moving block is connected to the end of the second spring.
[0011] Furthermore, the control component includes a third spring disposed on one side of the mounting platform, the end of which is connected to a locking block.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] This invention, by setting up a positioning component and a limiting component, can quickly position the elastic cylindrical pin using a positioning column and fix it using two fixing plates. This effectively and quickly positions and fixes the elastic cylindrical pin, facilitating subsequent pressing work. By setting up a control component, after pressing, the placement frame passes through a locking block, which can pop out the elastic cylindrical pin quickly, saving the workload of workers and improving work efficiency. Attached Figure Description
[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the fixing plate in this utility model;
[0017] Figure 3 This is a schematic diagram of the rotating disk in this utility model;
[0018] Figure 4 This is a schematic diagram of the positioning column in this utility model;
[0019] Figure 5 This is a schematic diagram of the moving block in this utility model;
[0020] Figure 6This is a schematic diagram of the card block in this utility model.
[0021] Explanation of reference numerals in the attached figures:
[0022] In the picture:
[0023] 1. Workbench; 2. Mounting plate; 3. Mounting platform; 4. Placement frame; 5. Stamping cylinder; 6. Pressing tool; 7. Fixing plate; 8. Telescopic rod; 9. Positioning column; 10. Rotary disc; 11. Gear ring; 12. First gear; 13. Mounting bracket; 14. Second gear; 15. Locking block; 16. Sliding groove; 17. Moving block; 18. First spring; 19. Second spring; 20. Third spring. Detailed Implementation
[0024] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.
[0025] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.
[0026] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.
[0027] Please see Figures 1 to 6As shown, a press-fitting device for producing elastic cylindrical pins includes a workbench 1, a mounting plate 2 on the top of the workbench 1, and a press-fitting assembly for pressing elastic cylindrical pins at the bottom of the mounting plate 2. The press-fitting assembly includes a punch cylinder 5 on the top of the mounting plate 2, and a press-fitting tool 6 at the telescopic end of the punch cylinder 5. The press-fitting tool 6 is an existing press-fitting device for pressing elastic cylindrical pins on the market, which is prior art. Its shape and working principle will not be described in detail here. A mounting table 3 has several placement frames 4 on its top. A motor is installed inside the mounting table 3, and a motion component for driving the placement frames 4 to rotate is installed at the output end of the motor. The motor is an existing device and is not shown in the figure. Its working principle and connection method will not be described in detail here. The moving component includes a second gear 14 set at the output end of the motor. A rotating disk 10 is set on the top of the second gear 14. Several mounting brackets 13 are set on the outside of the rotating disk 10. A first gear 12 is set at the bottom of each mounting bracket 13. The first gear 12 is meshed with the second gear 14. A toothed ring 11 is set on the inside of the rotating disk 10. The first gear 12 is meshed with the toothed ring 11. The motor drives the second gear 14, thereby driving the mounting bracket 13 to rotate, thereby driving the placement frame 4 to rotate and move within the mounting platform 3.
[0028] The placement frame 4 is equipped with a limiting component for positioning and fixing the elastic cylindrical pin. A positioning post 9 is slidably connected within the placement frame 4. Between the limiting components are telescopic rods 8 symmetrically arranged on both sides of the placement frame 4. The telescopic rods 8 are automatic telescopic rods, existing equipment on the market; their working principle and connection method will not be elaborated upon here. Each telescopic rod 8 has an arc-shaped fixing plate 7 at its telescopic end. The purpose of the arc-shaped fixing plate 7 is to fit against the surface of the elastic cylindrical pin, thereby achieving a good fixing effect. The positioning post 9 is slidably connected within the placement frame 4. A second spring 19 is provided at the bottom of the positioning post 9. A sliding groove 16 is opened on one side of the placement frame 4, with the positioning post 9 facing the sliding groove 16. A first spring 18 is provided on one side of the moving groove 16, and a moving block 17 is connected to the end of the second spring 19. When the moving block 17 is in its natural state, it is located in the sliding groove 16 and abuts against the inner wall of the placement frame 4. When the locking block 15 abuts against the moving block 17, it will push the block into the placement frame 4, thereby restoring the deformation of the second spring 19, thereby lifting the positioning post 9 and then lifting the elastic cylindrical pin. When the second spring 19 is in its natural state, the positioning post 9 is located outside the placement frame 4, which makes it convenient for the operator to position the elastic cylindrical pin. The elastic cylindrical pin is hollow and can be inserted into the outside of the positioning post 9 to achieve the positioning effect.
[0029] A control component for ejecting the press-fitted elastic cylindrical pin is provided on one side of the mounting platform 3. The control component includes a third spring 20 located on one side of the mounting platform 3. A locking block 15 is connected to the end of the third spring 20. Both sides of the locking block 15 are inclined. The purpose of this design is to allow the locking block 15 to abut against the placement frame 4 after it comes into contact with the frame, thereby compressing the third spring 20. After the locking block 15 enters the sliding groove 15, the third spring 20 returns to its original shape and ejects the locking block 15 to contact the moving block 17.
[0030] Working principle: In use, after the elastic cylindrical pin is inserted into the positioning pin 9, the solid part inside the elastic cylindrical pin abuts against the positioning pin 9, thereby compressing the second spring 19. Then, the telescopic rod 8 pushes the fixing plate 7 to fix the elastic cylindrical pin. Then, the motor in the mounting platform 3 is started to drive the second gear 14 to rotate, thereby driving the rotating disk 10 to rotate, thereby driving the first gear 12 at the bottom of the mounting bracket 13 to rotate outside the gear ring 11 in the mounting platform 3, thereby driving the entire placement frame 4 to move, thereby moving it to the top of the mounting plate 2 on the top of the workbench 1 to the bottom of the pressing cylinder 5. Then, the pressing tool 6 performs the pressing work. After completion, it rotates until it contacts the locking block 15. The locking block 15 enters the sliding groove 16 on one side of the placement frame 4 and contacts the moving block 17, thereby abutting against it until it is completely inside the placement frame 4, thereby releasing the limit on the positioning pin 9. The second spring 19 returns to its deformation, thereby lifting the positioning pin 9, and thus lifting the elastic cylindrical pin.
[0031] It should be noted that, in this document, relational terms such as "one" and "two" are used merely 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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A press-fitting device for producing elastic cylindrical pins, characterized in that: include A workbench (1) is provided with a mounting plate (2) on the top of the workbench (1) and a pressing assembly for pressing the elastic cylindrical pin is provided at the bottom of the mounting plate (2). The mounting platform (3) has several placement frames (4) on its top. The mounting platform (3) has a motor inside, and the output end of the motor has a motion component for driving the placement frames (4) to rotate. The placement frames (4) have a limiting component for positioning and fixing the elastic cylindrical pins. The mounting platform (3) has a control component on one side for ejecting the press-fitted elastic cylindrical pins.
2. The press-fitting equipment for producing elastic cylindrical pins according to claim 1, characterized in that: The motion component includes a second gear (14) disposed at the output end of the motor. A rotating disk (10) is disposed on the top of the second gear (14). A plurality of mounting brackets (13) are disposed on the outer side of the rotating disk (10). A first gear (12) is disposed at the bottom of each mounting bracket (13).
3. The press-fitting equipment for producing elastic cylindrical pins according to claim 2, characterized in that: The first gear (12) is meshed with the second gear (14), and a gear ring (11) is provided on the inner side of the rotating disk (10). The first gear (12) is meshed with the gear ring (11).
4. The press-fitting equipment for producing elastic cylindrical pins according to claim 1, characterized in that: The press-fit assembly includes a press cylinder (5) disposed on the top of the mounting plate (2), and a press-fit tool (6) is provided at the telescopic end of the press cylinder (5). The limit position includes telescopic rods (8) symmetrically disposed on both sides of the placement frame (4), and an arc-shaped fixing plate (7) is provided at the telescopic end of each telescopic rod (8).
5. The press-fitting equipment for producing elastic cylindrical pins according to claim 1, characterized in that: A positioning post (9) is slidably connected inside the placement frame (4). A second spring (19) is provided at the bottom of the positioning post (9). A sliding groove (16) is provided on one side of the placement frame (4). A first spring (18) is provided on the side of the positioning post (9) facing the sliding groove (16). A moving block (17) is connected to the end of the second spring (19).
6. The press-fitting equipment for producing elastic cylindrical pins according to claim 1, characterized in that: The control component includes a third spring (20) disposed on one side of the mounting platform (3), and a locking block (15) is connected to the end of the third spring (20).