Electrical clamping device

Abstract

The utility model discloses an electrical clamping device, including mount, controller, the inside fixed connection of mount has the frame, and the controller fixed mounting is on the one side outer wall of frame, the top fixed mounting of frame has servo motor, the drive end of servo motor and frame jointly installs two -way movement subassembly. In the utility model, through adopting the servo motor drive two -way screw rod structure of longitudinal layout, cooperation four -link transmission mechanism has realized the longitudinal opening and closing movement of clamping rod. Compared with the parallel clamping jaw of traditional horizontal arrangement, this design has reduced the occupied space of device in horizontal direction obviously, is especially suitable in narrow longitudinal space carries out the clamping operation. Through frame formula integrated design will drive subassembly, transmission subassembly and clamping subassembly along the vertical direction compact arrangement, guarantees the clamping stroke while, makes the whole structure more compact, effectively solved the technical problem that the traditional clamping jaw used difficultly in limited horizontal space.

Description

Technical Field

[0001] This utility model relates to the field of clamping device technology, and in particular to an electrical clamping device. Background Technology

[0002] An electric clamping device is a device that combines electrical control and mechanical clamping functions, mainly used for precise clamping and positioning of workpieces on automated production lines. It controls the movement of mechanical components through electrical signals to achieve fast and accurate clamping operations.

[0003] Currently, electric clamping devices are widely used in automated production lines, CNC machine tools, robots and other fields.

[0004] Existing parallel grippers are a type of electrical clamping device, which typically employs a transversely arranged drive and transmission structure. This results in them occupying a large space in the horizontal direction, making them unsuitable for narrow or laterally confined working environments. Furthermore, most existing grippers lack real-time clamping force detection capabilities, leading to insufficient clamping force control. Alternatively, they may use fixed pressure sensors, which are difficult to replace after damage, impacting production efficiency.

[0005] Therefore, an electrical clamping device is proposed. Utility Model Content

[0006] This utility model is an electrical clamping device proposed to overcome the shortcomings of the existing technology.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an electrical clamping device, including a mounting frame and a controller. A frame is fixedly connected to the inner side of the mounting frame, and the controller is fixedly installed on the outer wall of one side of the frame. A servo motor is fixedly installed on the top of the frame. The drive end of the servo motor and the frame are jointly installed with a bidirectional moving component. Two movable ends of the bidirectional moving component are rotatably connected to two connecting rods. The two connecting rods on the same side are rotatably connected to a clamping rod.

[0008] Each of the two clamping rods is fixedly connected to a mounting base, and a clamping assembly is slidably mounted on an adjacent side of each of the two mounting bases;

[0009] Pressure detection components are inserted into adjacent sides of the outer surfaces of the two mounting bases, and the two mounting bases are fixed to the adjacent pressure detection components by hand-tightening screws.

[0010] Furthermore, the bidirectional moving assembly includes two bearing seats, which are respectively installed through the top and bottom of the frame and fixedly connected to the frame. The inner rings of the bearings built into the two bearing seats are fixedly connected to a bidirectional lead screw, and the top of the bidirectional lead screw is fixedly connected to the drive shaft of the servo motor. The outer surface of the bidirectional lead screw is symmetrically threaded with two slides, and the slides are rotatably connected to the adjacent connecting rods. The bearing seats effectively reduce the frictional resistance when the bidirectional lead screw moves and improve the transmission efficiency.

[0011] Furthermore, both of the aforementioned slide blocks are limited to sliding against the inner walls on both sides of the frame. This limiting structure can prevent the slide blocks from deflecting or getting stuck during movement.

[0012] Furthermore, both clamping components include a limiting plate, which is disposed inside the mounting base. A movable block is fixedly connected to one end of the limiting plate, and the movable block passes through the mounting base and is slidably connected to the mounting base. A clamping plate is fixedly connected to one end of the movable block. The limiting plate can prevent the clamping plate from detaching from the mounting base.

[0013] Furthermore, the clamping surface of the clamping plate is provided with anti-slip texture, which can increase the friction between the clamping plate and the workpiece and prevent slippage or loosening during the clamping process.

[0014] Furthermore, both pressure detection components include a positioning seat, which is slidably inserted into the mounting seat. A pressure sensor is fixedly embedded at one end of the positioning seat, and the detection end of the pressure sensor abuts against the limiting plate. This structure enables the pressure sensor to monitor the clamping force in real time.

[0015] Furthermore, both of the aforementioned hand-tightening screws pass through the mounting base and are threadedly connected to the positioning base. This design allows the pressure detection component to be fixed or disassembled without the need for additional tools, significantly improving ease of operation.

[0016] Furthermore, a reinforcing rib is fixedly connected to the mounting base on one side of the outer surface of both clamping rods. This reinforcing rib can effectively enhance the connection strength between the clamping rod and the mounting base, preventing deformation or loosening after long-term use.

[0017] The beneficial effects of this utility model are:

[0018] In use, this utility model discloses an electrical clamping device that employs a longitudinally arranged servo motor driving a bidirectional lead screw structure, in conjunction with a four-bar linkage, to achieve the longitudinal opening and closing movement of the clamping rod. Compared to traditional horizontally arranged parallel grippers, this design significantly reduces the horizontal space occupied by the device, making it particularly suitable for clamping operations in narrow longitudinal spaces. Through a frame-integrated design, the drive assembly, transmission assembly, and clamping assembly are compactly arranged vertically, ensuring sufficient clamping stroke while making the overall structure more compact, effectively solving the technical problem of the difficulty in using traditional grippers in limited lateral space.

[0019] In use, this utility model presents an electrical clamping device with a modular pressure detection component design. Through a sliding plug-in positioning seat and a quick-fixing structure using a hand-tightening screw, it enables convenient disassembly and replacement of the pressure sensor. The pressure sensor directly abuts against the limiting plate of the clamping component, allowing for real-time detection of clamping force and feedback to the controller, forming a closed-loop control. This design retains the rigid clamping characteristics of traditional grippers while adding force measurement functionality, and simultaneously solves the problem of difficult sensor maintenance. It is particularly suitable for automated production lines requiring accurate control of clamping force and frequent replacement of detection modules. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific 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.

[0021] Figure 1 : A perspective view of this utility model;

[0022] Figure 2 : A cross-sectional view of this utility model;

[0023] Figure 3 : A cross-sectional view of the mounting base of this utility model.

[0024] The attached figures are labeled as follows:

[0025] 1. Mounting bracket; 2. Servo motor; 3. Connecting rod; 4. Controller; 5. Frame; 6. Clamping rod; 7. Reinforcing rib; 8. Mounting base; 9. Clamping plate; 10. Bearing housing; 11. Two-way lead screw; 12. Slide; 13. Movable block; 14. Hand screw; 15. Positioning seat; 16. Pressure sensor; 17. Limit plate. Detailed Implementation

[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1 to 3 As shown, an electrical clamping device is disclosed, comprising a mounting bracket 1 and a controller 4. A frame 5 is fixedly connected to the inner side of the mounting bracket 1, and the controller 4 is fixedly mounted on one outer wall of the frame 5. A servo motor 2 is fixedly mounted on the top of the frame 5. The servo motor 2 is a Panasonic MINAS. The A6 series servo motor, equipped with an electromagnetic brake, has a bidirectional moving assembly mounted on its drive end and frame 5. Both movable ends of the bidirectional moving assembly are rotatably connected to two connecting rods 3. The two connecting rods 3 on the same side are rotatably connected to a clamping rod 6. The bidirectional moving assembly includes two bearing seats 10, which are respectively installed through the top and bottom of frame 5 and fixedly connected to it. The inner rings of the bearings within the two bearing seats 10 are fixedly connected to a bidirectional lead screw 11. The top of the bidirectional lead screw 11 is fixedly connected to the drive shaft of the servo motor 2. Two slide blocks 12 are symmetrically threaded onto the outer surface of the bidirectional lead screw 11, and each slide block 12 is rotatably connected to an adjacent connecting rod 3. Both slide blocks 12 slide against the inner walls on both sides of frame 5. Slide rails are fixedly connected to the inner walls on both sides of frame 5, and these slide rails slide against the slide blocks 12, providing a limiting function to ensure the stability of the slide block 12's movement.

[0028] The ends of the two clamping rods 6 are fixedly connected to the mounting bases 8. One side of the outer surface of the two clamping rods 6 is fixedly connected to the mounting bases 8 with a reinforcing rib 7. The reinforcing rib 7 increases the strength of the clamping rods 6. The two mounting bases 8 are slidably mounted with clamping components on adjacent sides. Both clamping components include a limiting plate 17, and the limiting plate 17 is set inside the mounting base 8. One end of the limiting plate 17 is fixedly connected to a movable block 13, and the movable block 13 passes through the mounting base 8 and is slidably connected to the mounting base 8. One end of the movable block 13 is fixedly connected to a clamping plate 9, and the clamping surface of the clamping plate 9 is provided with anti-slip texture.

[0029] Pressure detection components are inserted into adjacent sides of the outer surfaces of the two mounting bases 8. The two mounting bases 8 are fixed to the adjacent pressure detection components by hand screws 14. Both pressure detection components include positioning seats 15, and the positioning seats 15 are slidably inserted into the mounting bases 8. A pressure sensor 16 is fixedly embedded at one end of the positioning seat 15, and the detection end of the pressure sensor 16 abuts against the limiting plate 17. Both hand screws 14 pass through the mounting bases 8 and are threadedly connected to the positioning seats 15. The pressure sensor 16 is a Tianguang TJH-4B.

[0030] The controller 4 is electrically connected to the servo motor 2 and the pressure sensor 16 to facilitate overall control. The specific data analysis and processing involved to further realize the control function are methods that can be implemented by those skilled in the art based on common knowledge. These methods are not within the scope of this solution. The above description is only to illustrate the beneficial effects that can be achieved by this hardware structure improvement in conjunction with common knowledge.

[0031] Working principle: Controller 4 controls servo motor 2 to run, servo motor 2 drives bidirectional lead screw 11 to rotate counterclockwise, bidirectional lead screw 11 drives two slide blocks 12 to move closer to each other, and then drives two clamping rods 6 to separate from each other through connecting rod 3. The clamping rods 6 drive two clamping components to separate from each other through mounting base 8. When the preset position is reached, controller 4 controls servo motor 2 to stop running.

[0032] When clamping the workpiece, the controller 4 controls the servo motor 2 to run. The servo motor 2 drives the bidirectional lead screw 11 to rotate clockwise, driving the two slides 12 to move away from each other. Then, through the connecting rod 3, clamping rod 6, and mounting base 8, the two clamping components are driven to move closer to each other to clamp the workpiece.

[0033] When the workpiece comes into contact with the clamping plate 9, the detection end of the pressure sensor 16 is squeezed by the movable block 13 and the limiting plate 17. The pressure sensor 16 detects the pressure value and sends the signal to the controller 4. When the pressure reaches the threshold, the controller 4 controls the servo motor 2 to stop running.

[0034] When the pressure sensor 16 needs to be replaced, unscrew the thumb screw 14, remove the movable block 13, replace it with the new pressure sensor 16, and then tighten the thumb screw 14.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An electrical clamping device, comprising a mounting bracket (1) and a controller (4), characterized in that: The mounting bracket (1) is fixedly connected to a frame (5), and the controller (4) is fixedly installed on one side of the outer wall of the frame (5). A servo motor (2) is fixedly installed on the top of the frame (5). The drive end of the servo motor (2) and the frame (5) are jointly installed with a bidirectional moving component. The two movable ends of the bidirectional moving component are rotatably connected to two connecting rods (3). The two connecting rods (3) on the same side are rotatably connected to a clamping rod (6). The ends of the two clamping rods (6) are fixedly connected to mounting bases (8), and clamping components are slidably installed on adjacent sides of the two mounting bases (8); Pressure detection components are inserted into adjacent sides of the outer surfaces of the two mounting bases (8), and the two mounting bases (8) are fixed to the adjacent pressure detection components by hand-tightening screws (14).

2. The electrical clamping device according to claim 1, characterized in that: The bidirectional moving assembly includes two bearing seats (10), which are respectively installed through the top and bottom of the frame (5) and are fixedly connected to the frame (5). The inner rings of the bearings built into the two bearing seats (10) are fixedly connected to a bidirectional lead screw (11), and the top of the bidirectional lead screw (11) is fixedly connected to the drive shaft of the servo motor (2). The outer surface of the bidirectional lead screw (11) is symmetrically threaded with two slides (12), and the slides (12) are rotatably connected to the adjacent connecting rod (3).

3. The electrical clamping device according to claim 2, characterized in that: Both of the slide blocks (12) are limited to sliding against the inner walls on both sides of the frame (5).

4. The electrical clamping device according to claim 1, characterized in that: Both clamping components include a limiting plate (17), and the limiting plate (17) is disposed inside the mounting base (8). One end of the limiting plate (17) is fixedly connected to a movable block (13), and the movable block (13) passes through the mounting base (8) and is slidably connected to the mounting base (8). One end of the movable block (13) is fixedly connected to a clamping plate (9).

5. An electrical clamping device according to claim 4, characterized in that: The clamping surface of the clamping plate (9) is provided with anti-slip texture.

6. An electrical clamping device according to claim 4, characterized in that: Both pressure detection components include a positioning seat (15), and the positioning seat (15) is slidably inserted into the mounting seat (8). A pressure sensor (16) is fixedly embedded at one end of the positioning seat (15), and the detection end of the pressure sensor (16) abuts against the limiting plate (17).

7. An electrical clamping device according to claim 6, characterized in that: Both of the aforementioned hand-tightening screws (14) are set through the mounting base (8) and are threadedly connected to the positioning base (15).

8. An electrical clamping device according to claim 1, characterized in that: One side of the outer surface of each of the two clamping rods (6) is fixedly connected to the mounting base (8) with a reinforcing rib (7).

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