Chain pin shaft clamping and conveying mechanism
By using a transmission structure driven by servo motors and stepper motors in conjunction with a slide rail to hold an electric cylinder, the problem of precise positioning and feeding of chain pins in the chain pin clamping mechanism is solved, and stable processing of chain pins is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-03-20
AI Technical Summary
Existing chain pin clamping and feeding mechanisms cannot accurately and effectively position, clamp, and feed cylindrical chain pins, resulting in instability in the processing.
The transmission structure driven by a servo motor and the stable slide rail, along with the clamping electric cylinder, enable precise movement and positioning of the feeding table. At the same time, the unloading component driven by a stepper motor ensures that the chain pins are unloaded and fed out individually.
It achieves precise feeding and placement of chain pins, avoids blockages, and ensures the stability and continuity of the processing.
Smart Images

Figure CN224014720U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of chain pin processing technology, and in particular relates to a chain pin clamping and feeding mechanism. Background Technology
[0002] A chain pin is a slender cylindrical component used as a pivot for chain hinges. It not only connects the various parts of the chain, but also enables the chain to rotate flexibly through its pivot function. It is an important component in the chain drive system. When processing chain pins, a clamping mechanism is needed to continuously and efficiently transport the cylindrical chain pin to the processing equipment instead of manual labor.
[0003] However, existing chain pin clamping mechanisms typically use mechanical grippers to clamp the chain pins during application. However, the chain pin placement component is a deep groove, and the machining station is a cylindrical groove that matches its cylindrical shape. There is a technical problem that the grippers cannot accurately and effectively position, clamp, and place the cylindrical chain pins to ensure that the pin processing can proceed normally. Utility Model Content
[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a chain pin clamping mechanism, which can effectively solve the problems of the existing technology.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to a chain pin clamping and feeding mechanism, comprising a mounting frame, a hopper disposed at the top center of the mounting frame, and a feeding platform disposed at the top center of the inner side of the mounting frame, and further comprising:
[0007] A servo motor is located at the middle position of the bottom inner side of the mounting frame near the front end, and a transmission structure is provided between the output end of the servo motor and the front end of the feeding table.
[0008] A connecting frame is fixedly connected to the top of the inner side of the mounting frame, and a stabilizing structure is provided at both ends between the top and bottom of the feeding platform and the top of the inner side of the mounting frame and the bottom of the inner side of the connecting frame.
[0009] The feeding assembly is located at the bottom between the two ends inside the hopper.
[0010] Furthermore, the structure includes a rack and a transmission gear. The rack is disposed at the front end of the feeding table, and the output end of the servo motor is provided with a transmission gear. The transmission gear and the rack are on the same horizontal plane and mesh with each other.
[0011] Furthermore, the stabilizing structure includes a stabilizing slide rail and a limiting slide bar. The stabilizing slide rail is disposed at both ends of the inner top of the mounting frame and the inner bottom of the connecting frame. The limiting slide bar is disposed at both ends of the top and bottom of the feeding table. The limiting slide bar is embedded in the inner side of the stabilizing slide rail and can slide horizontally inside the stabilizing slide rail.
[0012] Furthermore, a discharge channel is provided between the bottom of the hopper and the top of the mounting frame at the middle position, and the discharge channel is connected to the inner side of the hopper and the mounting frame.
[0013] Furthermore, a feeding trough is provided at the middle position of one side of the feeding platform, and clamping electric cylinders are provided at both ends of the feeding trough, with a stabilizing clamping plate provided at the opposite end of the clamping electric cylinders.
[0014] Furthermore, the feeding assembly includes a stepper motor, a shaft, a feeding roller, and a feeding flap. The stepper motor is located at the bottom of the front end of the hopper. The shaft is rotatably connected to the middle position of the bottom between the two ends inside the hopper. The front end of the shaft passes through the front end of the hopper and is connected to the output end of the stepper motor. A feeding roller is provided on the outside of the shaft, and a feeding flap is provided on the outside of the feeding roller. The feeding flaps are arranged at equal intervals on the outside of the feeding roller.
[0015] This utility model has the following beneficial effects:
[0016] 1. This utility model provides a reciprocating feeding assembly between the outer side of the feeding table and the bottom of the inner side of the mounting frame. During use, a servo motor drives the transmission gear to move the rack back and forth, thereby moving the feeding table back and forth to pick up and feed the chain pin. At the same time, the limiting slide bar slides within the stable slide rail to support and stabilize the feeding table, ensuring the smoothness of the feeding table's movement. This achieves the goal of accurately and reliably picking up and feeding the chain pin to ensure continuous and stable processing operations.
[0017] 2. This utility model has a feeding component installed at the bottom between the two ends inside the hopper. In use, the stepper motor drives the shaft to rotate the feeding roller at a fixed angle, which in turn drives the feeding flap to flip the chain pins in the hopper downwards individually for feeding. This avoids the chain pins squeezing and blocking the feeding channel, thus preventing the chain pins from being unable to feed and ensuring that the chain pins are fed normally and continuously for processing. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0020] Figure 2 This is a bottom-view perspective view of the present invention;
[0021] Figure 3 This is a schematic diagram of the rear cross-sectional structure of this utility model;
[0022] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1. Mounting frame; 2. Feeding channel; 3. Stepper motor; 4. Hopper; 5. Feeding platform; 6. Stabilizing clamp; 7. Clamping cylinder; 8. Feeding trough; 9. Rack; 10. Connecting frame; 11. Stabilizing slide rail; 12. Servo motor; 13. Shaft; 14. Feeding roller; 15. Feeding flap; 16. Limiting slide bar; 17. Transmission gear. Detailed Implementation
[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0026] Please see Figure 1-4 As shown, this utility model is a chain pin clamping and feeding mechanism, including a mounting frame 1, a hopper 4 disposed at the top center of the mounting frame 1, and a feeding platform 5 disposed at the top center of the inner side of the mounting frame 1, and further including:
[0027] A feeding channel 2 is provided between the bottom of the hopper 4 and the top of the mounting frame 1, and the feeding channel 2 is connected to the inside of the hopper 4 and the mounting frame 1. A feeding trough 8 is provided at the middle position of one side of the feeding platform 5. Clamping electric cylinders 7 are provided at both ends of the feeding trough 8. A stabilizing clamping plate 6 is provided at the opposite end of the clamping electric cylinder 7. The stabilizing clamping plate 6 is moved towards each other by the clamping electric cylinder 7 to clamp the chain pin to be processed in the inside of the feeding trough 8. After the chain pin is transported to the processing station, the stabilizing clamping plate 6 is released to release the chain pin. A connecting frame 10 is fixedly connected to the top of the inside of the mounting frame 1, and the position of the feeding platform 5 is limited by the connecting frame 10.
[0028] As a further implementation of this embodiment, such as Figure 1-4As shown, the servo motor 12 is located at the middle position of the bottom inner side of the mounting bracket 1 near the front end. A transmission structure is provided between the output end of the servo motor 12 and the front end of the feeding table 5. The structure includes a rack 9 and a transmission gear 17. The rack 9 is located at the front end of the feeding table 5, and the output end of the servo motor 12 is provided with the transmission gear 17. The transmission gear 17 and the rack 9 are on the same horizontal plane and mesh with each other. By driving the transmission gear 17 through the servo motor 12, the rack 9 can be moved left and right to move back and forth, thereby driving the feeding table 5 to move back and forth, thus moving the position of the feeding trough 8 to the bottom of the unloading channel 2 to receive the material and positioning the transfer chain. The pin is processed at the machining station. The top and bottom of the feeding table 5 are provided with stabilizing structures at both ends between the top of the inner side of the mounting frame 1 and the bottom of the inner side of the connecting frame 10. The stabilizing structure includes a stabilizing slide rail 11 and a limiting slide bar 16. The stabilizing slide rail 11 is provided at both ends of the top of the inner side of the mounting frame 1 and the bottom of the inner side of the connecting frame 10. The limiting slide bar 16 is provided at both ends of the top and bottom of the feeding table 5. The limiting slide bar 16 is embedded in the inner side of the stabilizing slide rail 11 and can slide horizontally inside the stabilizing slide rail 11. When the feeding table 5 is driven to move, the limiting slide bar 16 slides in the stabilizing slide rail 11 to ensure the stability of the feeding table 5 when it moves.
[0029] When in use, the servo motor 12 located at the bottom front end of the inner side of the mounting frame 1 is started to drive the transmission gear 17 located at its output end to rotate. When the transmission gear 17 rotates, it drives the rack 9 located at the front end of the feeding table 5 and meshing with it to move to the left, so that the feeding groove 8 located on one side of the inner side of the feeding table 5 is aligned with the unloading channel 2. The chain pin to be processed falls from the unloading channel 2 into the feeding groove 8 and is clamped and fixed therein, driving the feeding table 5 to move to the right, transferring the chain pin out of the mechanism and positioning it to be sent into the processing station. When the feeding table 5 is driven to move left and right, the limiting slide bars 16 located at its top and bottom ends slide in the stabilizing slide rail 11, thereby supporting and stabilizing the feeding table 5 to ensure stable clamping of the chain pin.
[0030] As a further implementation of this embodiment, such as Figure 1 , Figure 2 and Figure 3As shown, the feeding assembly is located at the bottom between the two ends inside the hopper 4. The feeding assembly includes a stepper motor 3, a shaft 13, a feeding roller 14, and a feeding flap 15. The stepper motor 3 is located at the bottom of the front end of the hopper 4. The shaft 13 is rotatably connected to the middle position of the bottom between the two ends inside the hopper 4. The front end of the shaft 13 passes through the front end of the hopper 4 and is connected to the output end of the stepper motor 3. The stepper motor 3 can drive the shaft 13 to rotate at a fixed angle of 60° at the bottom between the two ends inside the hopper 4. The feeding roller 14 is provided on the outside of the shaft 13, and the feeding flap 15 is provided on the outside of the feeding roller 14. The feeding flap 15 is arranged at equal intervals on the outside of the feeding roller 14. When the shaft 13 is driven to rotate, it drives the feeding roller 14 and the feeding flap 15 to rotate, causing the chain pin in the hopper 4 to flip downward and fall from the feeding channel 2 and be clamped.
[0031] When in use, the stepper motor 3 set at the bottom front end of the hopper 4 is started to drive the shaft 13 connected to the bottom of both ends inside the hopper 4 to rotate. When the shaft 13 rotates, it drives the feeding roller 14 set outside it and the feeding flap 15 set outside the feeding roller 14 to rotate at a fixed angle of 60°, so that the chain pin in the hopper 4 is flipped downward and sent into the feeding channel 2 for continuous feeding.
[0032] Working principle: When using the chain pin clamping mechanism, the chain pin to be processed is placed inside the feed hopper 4. Then, the servo motor 12 is started to drive the transmission gear 17 to rotate, causing the meshing rack 9 to move to the left. This, in turn, causes the feeding table 5 to move to the left inside the connecting frame 10, so that the feeding groove 8 is aligned with the unloading channel 2. At the same time, the limiting slide bar 16 slides within the stabilizing slide rail 11 to support and stabilize the feeding table 5. Then, the stepper motor 3 is started to drive the shaft 1360° to rotate at a fixed angle, which in turn causes the unloading roller 14 and the unloading flap 1560° to rotate at a fixed angle, thus moving the material inside the hopper 4. The chain pins are individually flipped downwards and fed into the unloading channel 2. Then, the chain pins are guided into the feeding trough 8 through the unloading channel 2. At the same time, the bottom of the connecting frame 10 restricts the chain pins to ensure that they are in the feeding trough 8. The clamping electric cylinder 7 pushes the stabilizing clamp 6 to move in opposite directions to clamp the chain pins on the inside of the feeding trough 8. Then, the feeding table 5 is driven to move to the right to transfer the chain pins out of the mechanism and position them to be sent into the processing station. After the chain pins are delivered to the processing station, the clamping electric cylinder 7 drives the stabilizing clamp 6 to move in the opposite direction to release the chain pins into the processing station for processing.
[0033] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.
Claims
1. A chain pin clamping and feeding mechanism, comprising a mounting frame (1), a hopper (4) disposed at the top center of the mounting frame (1), and a feeding platform (5) disposed at the top center of the inner side of the mounting frame (1), characterized in that, Also includes: A servo motor (12) is located at the middle position of the bottom of the inner side of the mounting bracket (1) near the front end. A transmission structure is provided between the output end of the servo motor (12) and the front end of the feeding table (5). The connecting frame (10) is fixedly connected to the top of the inner side of the mounting frame (1), and the top and bottom of the feeding table (5) are provided with a stable structure at both ends between the top of the inner side of the mounting frame (1) and the bottom of the inner side of the connecting frame (10); The feeding assembly is located at the bottom between the two ends inside the hopper (4).
2. The chain pin clamping mechanism according to claim 1, characterized in that, The structure includes a rack (9) and a transmission gear (17). The rack (9) is located at the front end of the feeding table (5). The output end of the servo motor (12) is provided with a transmission gear (17). The transmission gear (17) and the rack (9) are on the same horizontal plane and mesh with each other.
3. The chain pin clamping mechanism according to claim 1, characterized in that, The stabilizing structure includes a stabilizing slide rail (11) and a limiting slide bar (16). The stabilizing slide rail (11) is located at both ends of the inner top of the mounting frame (1) and the inner bottom of the connecting frame (10). The limiting slide bar (16) is located at both ends of the top and bottom of the feeding table (5). The limiting slide bar (16) is embedded in the inner side of the stabilizing slide rail (11) and can slide horizontally inside the stabilizing slide rail (11).
4. The chain pin clamping mechanism according to claim 1, characterized in that, A discharge channel (2) is provided between the bottom of the hopper (4) and the top of the mounting frame (1), and the discharge channel (2) is connected to the inner side of the hopper (4) and the mounting frame (1).
5. A chain pin clamping mechanism according to claim 1, characterized in that, A feeding trough (8) is provided at the middle position of one side of the feeding platform (5). A clamping electric cylinder (7) is provided at both ends of the feeding trough (8). A stabilizing clamp (6) is provided at the opposite end of the clamping electric cylinder (7).
6. The chain pin clamping mechanism according to claim 1, characterized in that, The feeding assembly includes a stepper motor (3), a shaft (13), a feeding roller (14), and a feeding flap (15). The stepper motor (3) is located at the bottom of the front end of the hopper (4). The shaft (13) is rotatably connected to the middle position of the bottom between the two ends inside the hopper (4). The front end of the shaft (13) passes through the front end of the hopper (4) and is connected to the output end of the stepper motor (3). The feeding roller (14) is provided on the outside of the shaft (13). The feeding flap (15) is provided on the outside of the feeding roller (14), and the feeding flap (15) is arranged at equal intervals on the outside of the feeding roller (14).