A clamping device
By combining the drive motor and the telescopic push rod, the automatic clamping and unloading of terminal blocks in the production process is realized, which solves the problems of increased workload and safety hazards caused by manual unloading in the existing technology, and improves processing efficiency and safety.
Patent Information
- Application Number
- CN202522227156.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-22
AI Technical Summary
Existing clamping devices for terminal block production require manual unloading, which increases workload, poses safety hazards, and affects processing efficiency.
A clamping device was designed, which uses a drive motor to drive a bidirectional screw to realize the automatic opening and closing of the clamping plate. Combined with a telescopic push rod, it realizes the automatic clamping and unloading of the workpiece. The guide tube and the push rod ensure smooth movement, and a buffer pad is provided to prevent workpiece damage.
It enables automatic workpiece clamping and unloading, reduces manual operation steps, improves production efficiency, reduces safety risks, and enhances clamping accuracy and safety.
Smart Images

Figure CN224927464U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of terminal block manufacturing technology, and specifically relates to a clamping device. Background Technology
[0002] In the production of terminal blocks, they need to be clamped and fixed. While existing clamping devices for terminal block production can meet the basic requirement of clamping, they require users to manually place the workpiece into the clamping structure, process it, and then manually remove it. They cannot automatically transfer the workpiece from the clamping structure or automatically unload it. This increases the user's workload, affects the overall efficiency of workpiece processing, and the manual unloading process increases the safety hazards caused by accidental operation. Therefore, they cannot fully meet user needs. Utility Model Content
[0003] In view of this, this utility model addresses the shortcomings of the prior art by providing a clamping device that not only meets the basic requirement of clamping and fixing workpieces, but also automatically transfers the processed workpieces out of the clamping structure, thereby reducing the workload and safety hazards of workers and improving the overall processing efficiency of workpieces.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a clamping device, including a base, a mounting seat is provided on one side of the base via a vertical rod, a mounting groove is provided at the bottom of the mounting seat, a bidirectional screw is rotatably provided in the mounting groove, mounting blocks that are slidably connected to the mounting groove are screwed to both sides of the bidirectional screw, a clamping plate is provided on the mounting block via a connecting plate, the clamping plate is L-shaped, a vertical plate is provided on the other side of the base, a telescopic push rod is provided horizontally on the vertical plate, a clamping pressure plate is provided on the output shaft of the telescopic push rod, and a collection groove is also provided on the base located at the side end of the mounting seat.
[0005] As a further improvement of this utility model, a guide tube located at the side end of the telescopic push rod is also provided horizontally through the vertical plate, and a guide rod located at the side end of the telescopic push rod and inserted into the guide tube is provided on the clamping plate.
[0006] As a further improvement of this utility model, the collection trough is snapped into the base, and the base is provided with a fixing groove that snaps into the side end of the collection trough. The side end of the collection trough is also provided with a handle. The collection trough is installed on the base by snapping and is equipped with a handle, which facilitates disassembly for cleaning or replacement with collection troughs of different specifications.
[0007] As a further improvement of this utility model, one end of the bidirectional screw extends into a mounting groove, on which a fixing frame is also provided. A drive motor, which can be a stepper motor or a servo motor, is mounted on the fixing frame. The output shaft of the drive motor is connected to one end of the bidirectional screw via a coupling. The drive motor is connected to the bidirectional screw via a coupling, resulting in a compact overall structure that is easy to maintain.
[0008] As a further improvement of this utility model, a first buffer pad layer is provided on the inner side of the clamping plate, and a second buffer pad layer is provided on the clamping pressure plate. Both the first and second buffer pad layers are made of silicone or polyurethane material, and anti-slip textures are also provided on the first and second buffer pad layers. The clamping plate has a first buffer pad layer made of silicone or polyurethane material on its inner side, and the clamping pressure plate has a second buffer pad layer made of silicone or polyurethane material on its inner side, with anti-slip textures. This ensures clamping force while preventing damage to the workpiece surface, making it suitable for precision parts such as wiring terminals that require high surface quality.
[0009] As a further improvement of this utility model, the connecting plate has a U-shaped structure. One end of the connecting plate is connected to the mounting block by a first connecting bolt, and the other end of the connecting plate is connected to the clamping plate by a second connecting bolt. The connecting plate is also provided with reinforcing ribs.
[0010] As a further improvement of this utility model, the inner wall of the bottom of the collecting tank is inclined, with the end closer to the base being higher than the end farther from the base, so that the processed workpiece can automatically slide to the discharge end after falling in.
[0011] As a further improvement of this utility model, the bottom of the base is also provided with support legs, and the side ends of the support legs are also provided with mounting plates. The mounting plates are provided with mounting bolts for connecting to the workbench. The mounting plate and mounting bolts at the bottom of the base can be firmly fixed to the workbench or automated production line, supporting integration into various production equipment and suitable for application scenarios under different working conditions.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: Firstly, by driving the bidirectional screw to rotate via a drive motor, the two L-shaped clamping plates move synchronously towards each other or apart. Combined with the telescopic push rod driving the clamping pressure plate to press the workpiece from the top, the entire clamping and releasing process can be completed automatically without manual intervention, significantly improving production efficiency.
[0013] Secondly, after the limiting plate releases the clamping and fixing of the workpiece, the output shaft of the telescopic push rod only needs to continue to extend a certain length to push the processed workpiece away from the mounting base and let it fall automatically into the inclined collection groove under the action of gravity, and slide out along the inclined surface, realizing automatic unloading, reducing the manual handling steps and reducing labor intensity.
[0014] Thirdly, by automating clamping and unloading, the safety risks that may arise from operators manually removing parts after processing are avoided, especially in high-speed or high-temperature processing environments, effectively ensuring operational safety.
[0015] Fourth, a cooperative structure is set up between the guide tube and the guide rod to ensure smooth movement and good centering during clamping, thereby improving clamping accuracy and repeatability. Attached Figure Description
[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural diagram of the base, fixing slot, mounting plate, mounting bolts, and support leg of this utility model; Figure 3 This is a schematic diagram of the collection trough and handle of this utility model; Figure 4 This is a schematic diagram of the structure of the collection tank of this utility model; Figure 5 This is a schematic diagram of the structure of the mounting groove, bidirectional screw, mounting block, and clamping plate of this utility model.
[0018] In the diagram: 101, base; 102, mounting base; 103, mounting groove; 104, double-acting screw; 105, mounting block; 106, clamping plate; 107, vertical plate; 108, telescopic push rod; 109, clamping pressure plate; 110, collection groove; 111, vertical rod; 112, connecting plate; 201, guide tube; 202, guide rod; 203, fixing slot; 204, handle; 205, fixing frame; 206, drive motor; 207, coupling; 301, first buffer pad; 302, second buffer pad; 303, mounting plate; 304, mounting bolt; 305, support leg. Detailed Implementation
[0019] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.
[0020] like Figure 1 , 5As shown, a clamping device includes a base 101. A mounting seat 102 is provided on one side of the base 101 via a vertical rod 111. A mounting groove 103 is provided at the bottom of the mounting seat 102. A bidirectional screw 104 is rotatably disposed in the mounting groove 103. Mounting blocks 105 that are slidably connected to the mounting groove 103 are screwed to both sides of the bidirectional screw 104. A clamping plate 106 is provided on the mounting block 105 via a connecting plate 112. The clamping plate 106 is L-shaped. A vertical plate 107 is provided on the other side of the base 101. A telescopic push rod 108 is provided laterally on the vertical plate 107. A clamping pressure plate 109 is provided on the output shaft of the telescopic push rod 108. A collection groove 110 located at the side end of the mounting seat 102 is also provided on the base 101.
[0021] like Figure 1 , 2 As shown, a guide tube 201 located at the side end of the telescopic push rod 108 is also horizontally arranged on the vertical plate 107, and a guide rod 202 located at the side end of the telescopic push rod 108 and inserted into the guide tube 201 is provided on the clamping plate 106.
[0022] like Figure 3 As shown, the collection tank 110 is snapped into the base 101. The base 101 is provided with a fixing slot 203 that snaps into the side end of the collection tank 110. The side end of the collection tank 110 is also provided with a handle 204. The collection tank 110 is installed on the base 101 by snapping and is equipped with a handle 204 for easy disassembly, cleaning, or replacement of collection tanks 110 of different specifications.
[0023] like Figure 1 , 5 As shown, one end of the bidirectional screw 104 extends into a mounting groove 103. A mounting bracket 205 is also provided on the mounting groove 103, and a drive motor 206 is mounted on the mounting bracket 205. The drive motor 206 is a stepper motor or a servo motor. The output shaft of the drive motor 206 is connected to one end of the bidirectional screw 104 via a coupling 207. The drive motor 206 is connected to the bidirectional screw 104 via the coupling 207, resulting in a compact overall structure that is easy to maintain.
[0024] like Figure 4 As shown, the bottom inner wall of the collection tank 110 is inclined, with the end near the base 101 being higher than the end away from the base 101, so that the processed workpiece can automatically slide to the discharge end after falling into it.
[0025] The worker can first start the drive motor 206, which drives the bidirectional screw 104 to rotate via the coupling 207. Since the threads on both sides of the bidirectional screw 104 are opposite, the two mounting blocks 105 move synchronously towards each other under the drive of the screw, thereby causing the L-shaped clamping plates 106 on both sides to slide along the mounting groove 103. This makes the distance between the two clamping plates 106 match the size of the workpiece in the front-back direction. Then, the workpiece can be quickly and accurately placed between the front and back ends of the two clamping plates 106, so that the left end of the workpiece abuts against the right end of the clamping plate 106, thus completing the initial placement of the workpiece.
[0026] Then the telescopic push rod 108 can be activated. With the insertion and cooperation of the guide rod 202 and the guide cylinder 201, the limiting pressure plate is stably driven to move until the limiting pressure plate abuts against the right end of the workpiece. Thus, through the cooperation of the two limiting clamps and the limiting pressure plate, the workpiece is firmly clamped and fixed, preventing displacement or vibration during processing and improving processing accuracy and safety.
[0027] After the workpiece is securely clamped, the processing equipment (such as drilling, milling, welding, etc.) is started to perform the predetermined process operation. At this time, the clamping device maintains a stable clamping state.
[0028] After processing, the drive motor 206 reverses, causing the bidirectional screw 104 to rotate in the opposite direction, causing the two clamping plates 106 to separate synchronously, releasing the lateral clamping of the workpiece. After the clamping is released, the telescopic push rod 108 extends again by a certain stroke, and its output shaft pushes the clamping pressure plate 109 forward, pushing the processed workpiece out of the mounting base 102. After the workpiece leaves the clamping area, it falls into the inclined collection groove 110 directly below it under the action of gravity.
[0029] Because the bottom of the collection tank 110 is designed with an incline (higher near the base 101 and lower further away), the workpiece automatically slides along the incline to the discharge end, achieving orderly collection. Operators can periodically remove the finished products from the discharge port, or they can be automatically transferred by the conveyor belt.
[0030] After the material is unloaded, the telescopic push rod 108 and the drive motor 206 are reset, the device returns to its initial state, and waits for the next workpiece to be loaded before entering the next work cycle.
[0031] According to another embodiment of the present invention, such as Figure 1 , 5As shown, a first buffer pad 301 is provided on the inner side of the clamping plate 106, and a second buffer pad 302 is provided on the clamping pressure plate 109. Both the first buffer pad 301 and the second buffer pad 302 are made of silicone or polyurethane material, and anti-slip textures are also provided on the first buffer pad 301 and the second buffer pad 302. During the clamping process, when the L-shaped clamping plate 106 moves to both sides of the workpiece and contacts the workpiece surface, the first buffer pad 301 (made of silicone or polyurethane material) provided on its inner side first contacts the workpiece; at the same time, when the clamping pressure plate 109 is pushed by the telescopic push rod 108 to press against the right end of the workpiece, the second buffer pad 302 on it also adheres to the right side of the workpiece. Both the first buffer layer 301 and the second buffer layer 302 have good elasticity and friction properties. They can effectively absorb the impact force during the clamping process, prevent the workpiece surface from being scratched or deformed by rigid contact, and significantly improve the friction force through the anti-slip texture on the surface to ensure stable and reliable clamping. They are especially suitable for processing precision parts with high surface precision requirements such as terminals and housings.
[0032] According to another embodiment of the present invention, such as Figure 1 , 5 As shown, the connecting plate 112 has a U-shaped structure. One end of the connecting plate 112 is connected to the mounting block 105 by the first connecting bolt, and the other end of the connecting plate 112 is connected to the clamping plate 106 by the second connecting bolt. The connecting plate 112 is also provided with reinforcing ribs.
[0033] The clamping plate 106 is detachably connected to the mounting block 105 via a U-shaped connecting plate 112. This connection method uses a first connecting bolt and a second connecting bolt to fix both ends respectively, facilitating the replacement of clamping plates 106 of different specifications to accommodate various workpiece sizes. Meanwhile, the reinforcing ribs added to the connecting plate 112 effectively improve the rigidity and bending resistance of the overall structure, preventing deformation or loosening during frequent reciprocating motion and force-bearing clamping, thus ensuring long-term operational stability and safety.
[0034] According to another embodiment of the present invention, such as Figure 2As shown, the base 101 also has a support leg 305 at its bottom, and a mounting plate 303 is provided on the side of the support leg 305. The mounting plate 303 has mounting bolts 304 for connecting to the worktable. The mounting plate 303 and mounting bolts 304 at the bottom of the base 101 allow for stable fixation to the worktable or automated production line, supporting integration into various production equipment and suitable for application scenarios under different working conditions. After placing this clamping device at the designated workstation, it can be firmly fixed to the equipment platform with high-strength bolts to prevent displacement during high-speed clamping or vibration processing. This design enhances the overall stability of the device and supports rapid integration into various CNC machine tools, assembly lines, or robot workstations, meeting the application needs of multiple scenarios and working conditions.
[0035] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A clamping device, comprising a base (101), characterized in that: A mounting base (102) is provided on one side of the base (101) via a vertical rod (111). A mounting groove (103) is provided at the bottom of the mounting base (102). A bidirectional screw (104) is rotatably provided in the mounting groove (103). Mounting blocks (105) that are slidably connected to the mounting groove (103) are screwed to both sides of the bidirectional screw (104). A clamping plate (106) is provided on the mounting block (105) via a connecting plate (112). The clamping plate (106) is L-shaped. A vertical plate (107) is provided on the other side of the base (101). A telescopic push rod (108) is provided horizontally on the vertical plate (107). A clamping pressure plate (109) is provided on the output shaft of the telescopic push rod (108). A collection groove (110) located at the side end of the mounting base (102) is also provided on the base (101).
2. The clamping device as described in claim 1, characterized in that: The vertical plate (107) is also provided with a guide tube (201) located at the side end of the telescopic push rod (108), and the clamping plate (106) is provided with a guide rod (202) located at the side end of the telescopic push rod (108) and inserted into the guide tube (201).
3. The clamping device as described in claim 2, characterized in that: The collection groove (110) is engaged with the base (101), and the base (101) is provided with a fixing groove (203) that engages with the side end of the collection groove (110). The side end of the collection groove (110) is also provided with a handle (204).
4. The clamping device as described in claim 3, characterized in that: One end of the bidirectional screw (104) extends into a mounting groove (103), and a fixing frame (205) is also provided on the mounting groove (103). A drive motor (206) is provided on the fixing frame (205). The drive motor (206) is a stepper motor or a servo motor. The output shaft of the drive motor (206) is connected to one end of the bidirectional screw (104) through a coupling (207).
5. The clamping device as described in claim 4, characterized in that: The clamping plate (106) has a first buffer pad layer (301) on its inner side and a second buffer pad layer (302) on its clamping pressure plate (109). Both the first buffer pad layer (301) and the second buffer pad layer (302) are made of silicone or polyurethane material. The first buffer pad layer (301) and the second buffer pad layer (302) are also provided with anti-slip texture.
6. The clamping device as described in claim 5, characterized in that: The connecting plate (112) has a U-shaped structure. One end of the connecting plate (112) is connected to the mounting block (105) by the first connecting bolt, and the other end of the connecting plate (112) is connected to the clamping plate (106) by the second connecting bolt. The connecting plate (112) is also provided with reinforcing ribs.
7. The clamping device as described in claim 6, characterized in that: The bottom inner wall of the collection trough (110) is inclined, with the end near the base (101) being higher than the end away from the base (101), so that the processed workpiece can automatically slide to the discharge end after falling into it.
8. The clamping device as described in claim 7, characterized in that: The base (101) is also provided with a support leg (305) at its bottom, and a mounting plate (303) is provided on the side end of the support leg (305). The mounting plate (303) is provided with mounting bolts (304) for connecting to the workbench.
