Clamping mechanism

Abstract

The utility model discloses a clamping mechanism which is used for solving the technical problem that an existing clamping mechanism is prone to causing damage to products when clamping the products. The clamping mechanism comprises a rack, a fixed clamping jaw and an elastic clamping jaw, a lifting assembly is installed on the machine frame, the lifting assembly is connected with the elastic clamping jaw, and the fixed clamping jaw is installed on the machine frame and located below the elastic clamping jaw. And when being driven to move downwards, the elastic clamping jaw can be matched with the fixed clamping jaw to clamp a product.

Description

Technical Field

[0001] This utility model relates to the field of automated equipment design technology, and in particular to a clamping mechanism. Background Technology

[0002] In the existing production process, in order to save time and effort and improve efficiency, products are generally gripped by a clamping mechanism.

[0003] Currently, clamping mechanisms generally include movable jaws and fixed jaws. By controlling the movement of the movable jaws relative to the fixed jaws, the product is clamped. However, because the movable and fixed jaws of existing clamping mechanisms are typically made of hard materials such as metal, they make hard contact with the product during clamping. This makes it very easy for the clamping mechanism to deform or damage the product, undoubtedly causing problems for manufacturers.

[0004] Therefore, finding a technical solution that can solve the above-mentioned technical problems has become an important research topic for those skilled in the art. Utility Model Content

[0005] This utility model discloses a clamping mechanism to solve the technical problem that existing clamping mechanisms are prone to damaging products when clamping them.

[0006] The present invention provides a clamping mechanism, including a frame, a fixed clamp, and an elastic clamp;

[0007] A lifting assembly is installed on the frame, the lifting assembly is connected to the elastic gripper, and the fixed gripper is installed on the frame and located below the elastic gripper;

[0008] When the elastic gripper is driven to move downward, it can cooperate with the fixed gripper to clamp the product.

[0009] Optionally, the elastic gripper includes a connecting block, a movable gripper portion, an elastic element, and a rotating shaft;

[0010] The connecting block is connected to the lifting assembly. The connecting block has a rotating hole. The movable gripper is connected to the rotating shaft. The rotating shaft is rotatably connected to the rotating hole. One end of the elastic member is connected to the movable gripper, and the other end of the elastic member is connected to the connecting block.

[0011] Optionally, the connecting block further includes a limiting hole that extends downward at an angle in the vertical direction, a limiting shaft is connected to the movable gripper portion, the limiting shaft is disposed adjacent to the rotating shaft, and the limiting shaft is movably connected to the limiting hole;

[0012] When the movable gripper is driven to rotate relative to the connecting block, the limiting shaft moves along the limiting hole.

[0013] Optionally, the lifting assembly includes a motor, a lead screw, and a mounting block;

[0014] The lead screw is rotatably connected to the frame and extends vertically; the motor is fixed to the frame and connected to the end of the lead screw; and the mounting block is threaded onto the lead screw.

[0015] The motor is used to drive the lead screw to rotate so as to drive the mounting block to move up and down in the vertical direction;

[0016] The connecting block is connected to the mounting block.

[0017] Optionally, the output end of the motor is connected to a drive pulley, the end of the lead screw is connected to a driven pulley, and a transmission belt is connected to the drive pulley and connected to the driven pulley through the transmission belt.

[0018] Optionally, it also includes a sensor and a sensing sheet used in conjunction with the sensor;

[0019] The sensing element is connected to the movable gripper, and the sensor is mounted on the connecting block or mounting block;

[0020] When the movable gripper is not rotating relative to the connecting block, the sensing element is within the sensing range of the sensor; when the movable gripper is driven to rotate relative to the connecting block, the sensing element leaves the sensing range of the sensor.

[0021] Optionally, the elastic element is a spring.

[0022] Optionally, the number of elastic grippers is multiple, the number of fixed grippers is the same as the number of elastic grippers, and the positions of the elastic grippers correspond one-to-one with the positions of the fixed grippers.

[0023] Optionally, both the movable gripper and the fixed gripper are provided with a buffer layer.

[0024] Optionally, the buffer layer is a rubber layer or a silicone layer.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] In the clamping mechanism of this embodiment, the elastic gripper is designed to be connected to the lifting component. When it is necessary to clamp the product, the lifting component drives the elastic gripper to move towards the fixed gripper to clamp the product. Since the elastic gripper has a certain elasticity, when the elastic gripper and the fixed gripper cooperate to clamp the product, the elastic gripper will produce elastic deformation when it comes into contact with the product, which plays a certain buffering role, thereby achieving the goal of clamping the product without causing damage to the product. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0028] Figure 1 A schematic diagram of the structure of a clamping mechanism provided by this utility model;

[0029] Figure 2 An exploded view of the structure of an elastic gripper in a gripping mechanism provided by this utility model;

[0030] Figure 3 A diagram showing the positional relationship between the sensor and the sensing plate in a clamping mechanism when the movable gripper is not rotating relative to the connecting block, provided by this utility model;

[0031] Illustration: Frame 1; Lifting assembly 2; Motor 201; Lead screw 202; Mounting block 203; Elastic gripper 3; Connecting block 301; Movable gripper part 302; Rotating shaft 303; Rotating hole 304; Limiting shaft 305; Limiting hole 306; Elastic element 307; Fixed gripper 4; Sensor 5; Sensing plate 6. Detailed Implementation

[0032] This utility model discloses a clamping mechanism to solve the technical problem that existing clamping mechanisms are prone to damaging products when clamping them.

[0033] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1 to 3The present invention provides a clamping mechanism, which includes a frame 1, a fixed gripper 4 and an elastic gripper 3.

[0035] A lifting assembly 2 is installed on the frame 1. The lifting assembly 2 is connected to the elastic gripper 3. The fixed gripper 4 is installed on the frame 1 and located below the elastic gripper 3.

[0036] When the elastic gripper 3 is driven to move downward, it can cooperate with the fixed gripper 4 to clamp the product.

[0037] In the clamping mechanism of this embodiment, the elastic gripper 3 is connected to the lifting component 2 by design. When it is necessary to clamp the product, the lifting component 2 drives the elastic gripper 3 to move towards the fixed gripper 4 to clamp the product. Since the elastic gripper 3 has a certain elasticity, when the elastic gripper 3 and the fixed gripper 4 cooperate to clamp the product, the elastic gripper 3 will produce elastic deformation when it comes into contact with the product, which plays a certain buffering role, so as to achieve that the product is clamped without causing damage.

[0038] Furthermore, the elastic gripper 3 includes a connecting block 301, a movable gripper portion 302, an elastic element 307, and a rotating shaft 303;

[0039] The connecting block 301 is connected to the lifting assembly 2. The connecting block 301 has a rotating hole 304. The movable gripper 302 is connected to the rotating shaft 303. The rotating shaft 303 is rotatably connected in the rotating hole 304. One end of the elastic member 307 is connected to the movable gripper 302, and the other end of the elastic member 307 is connected to the connecting block 301.

[0040] It should be noted that when the elastic gripper 3 and the fixed gripper 4 cooperate to clamp the product, the movable gripper 302 will rotate relative to the connecting block 301 while in contact with the product. At the same time, the rotation of the movable gripper 302 will cause the elastic element 307 to undergo elastic deformation. When the movable gripper gradually moves away from the fixed gripper 4 to release the product, due to the elastic force generated by the elastic element 307 returning to its original shape, the movable gripper 302 will rotate relative to the connecting block 301 to return to its initial position.

[0041] Furthermore, the elastic element 307 used in this embodiment can be selected as a spring.

[0042] Furthermore, the connecting block 301 in this embodiment also includes a limiting hole 306, the limiting hole 306 extends downward at an angle in the vertical direction, the movable gripper 302 is connected to a limiting shaft 305, the limiting shaft 305 is disposed adjacent to the rotating shaft 303, and the limiting shaft 305 is movably connected to the limiting hole 306;

[0043] When the movable gripper 302 is driven to rotate relative to the connecting block 301, the limiting shaft 305 moves along the limiting hole 306.

[0044] It should be noted that the above design can limit the rotation angle of the movable gripper 302. When the movable gripper 302 rotates to the limit angle relative to the connecting block 301, the limiting shaft 305 will abut against the inner wall of the limiting hole 306, thereby limiting the movable gripper 302 from continuing to rotate.

[0045] Furthermore, the lifting assembly 2 in this embodiment includes a motor 201, a lead screw 202, and a mounting block 203;

[0046] The lead screw 202 is rotatably connected to the frame 1 and extends in the vertical direction. The motor 201 is fixed to the frame 1 and connected to the end of the lead screw 202. The mounting block 203 is threadedly connected to the lead screw 202.

[0047] The motor 201 is used to drive the lead screw 202 to rotate so as to drive the mounting block 203 to rise and fall in the vertical direction;

[0048] The connecting block 301 is connected to the mounting block 203.

[0049] It should be noted that the travel distance and speed of the elastic gripper 3 can be controlled by controlling the rotation speed and rotation time of the motor 201, thereby enabling the operator to precisely control the clamping force of the elastic gripper 3.

[0050] Specifically, in this embodiment, the output end of the motor 201 is connected to a drive pulley, the end of the lead screw 202 is connected to a driven pulley, and a transmission belt is connected to the drive pulley and connected to the driven pulley through the transmission belt.

[0051] It should be noted that, through the above design, when the motor 201 starts, the driving pulley rotates with the output end of the motor 201, and then drives the driven pulley to rotate through the transmission belt, which in turn drives the lead screw 202 to rotate.

[0052] Furthermore, the clamping mechanism in this embodiment also includes a sensor 5 and a sensing sheet 6 used in conjunction with the sensor 5;

[0053] The sensing element 6 is connected to the movable gripper 302, and the sensor 5 is mounted on the connecting block 301 or the mounting block 203.

[0054] When the movable gripper 302 is not rotating relative to the connecting block 301, the sensing plate 6 is within the sensing range of the sensor 5; when the movable gripper is driven to rotate relative to the connecting block 301, the sensing plate 6 leaves the sensing range of the sensor 5.

[0055] It should be noted that, through the above design, when the movable gripper 302 cooperates with the fixed gripper 4 to clamp the product, the movable gripper 302 will rotate relative to the connecting block 301 or the mounting block 203, and the sensing plate 6 will leave the sensing range of the sensor 5, thereby sending a signal to the automation system to inform the operator that the gripping mechanism has clamped the product.

[0056] Specifically, the aforementioned sensor 5 is a photoelectric sensor.

[0057] Furthermore, to accommodate products of different sizes, the number of elastic grippers 3 in this embodiment can be multiple, and the number of fixed grippers 4 is the same as the number of elastic grippers 3. The positions of the elastic grippers 3 and the positions of the fixed grippers 4 correspond one-to-one.

[0058] Furthermore, in this embodiment, both the movable gripper 302 and the fixed gripper 4 are provided with a buffer layer.

[0059] It should be noted that, through the above design, when the movable gripper 302 cooperates with the fixed gripper 4 to clamp the product, the buffer layer will come into contact with the product, thereby further preventing the product from being damaged.

[0060] Specifically, the aforementioned buffer layer is either a rubber layer or a silicone layer. Designers can choose a suitable material as the buffer layer according to the actual situation, and this embodiment does not impose any restrictions on this.

[0061] The foregoing has provided a detailed description of the clamping mechanism provided by this utility model. For those skilled in the art, based on the ideas of the embodiments of this utility model, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A clamping mechanism, characterized in that, Includes a frame (1), fixed grippers (4) and flexible grippers (3); A lifting assembly (2) is installed on the frame (1), the lifting assembly (2) is connected to the elastic gripper (3), and the fixed gripper (4) is installed on the frame (1) and located below the elastic gripper (3); When the elastic gripper (3) is driven to move downward, it can cooperate with the fixed gripper (4) to grip the product.

2. The clamping mechanism according to claim 1, characterized in that, The elastic gripper (3) includes a connecting block (301), a movable gripper part (302), an elastic element (307), and a rotating shaft (303); The connecting block (301) is connected to the lifting assembly (2). The connecting block (301) has a rotating hole (304). The movable gripper (302) is connected to the rotating shaft (303). The rotating shaft (303) is rotatably connected in the rotating hole (304). One end of the elastic element (307) is connected to the movable gripper (302), and the other end of the elastic element (307) is connected to the connecting block (301).

3. The clamping mechanism according to claim 2, characterized in that, The connecting block (301) also includes a limiting hole (306), which extends downward at an angle in the vertical direction. A limiting shaft (305) is connected to the movable gripper (302). The limiting shaft (305) is arranged adjacent to the rotating shaft (303). The limiting shaft (305) is movably connected to the limiting hole (306). When the movable gripper (302) is driven to rotate relative to the connecting block (301), the limiting shaft (305) moves along the limiting hole (306).

4. The clamping mechanism according to claim 2, characterized in that, The lifting assembly (2) includes a motor (201), a lead screw (202), and a mounting block (203); The lead screw (202) is rotatably connected to the frame (1) and extends in the vertical direction. The motor (201) is fixed to the frame (1) and connected to the end of the lead screw (202). The mounting block (203) is threadedly connected to the lead screw (202). The motor (201) is used to drive the lead screw (202) to rotate so as to drive the mounting block (203) to rise and fall in the vertical direction; The connecting block (301) is connected to the mounting block (203).

5. The clamping mechanism according to claim 4, characterized in that, The output end of the motor (201) is connected to a drive pulley, and the end of the lead screw (202) is connected to a driven pulley. A transmission belt is connected to the drive pulley and is connected to the driven pulley through the transmission belt.

6. The clamping mechanism according to claim 2, characterized in that, It also includes a sensor (5) and a sensing sheet (6) used in conjunction with the sensor (5); The sensing plate (6) is connected to the movable gripper (302), and the sensor (5) is mounted on the connecting block (301) or the mounting block (203); When the movable gripper (302) is not rotating relative to the connecting block (301), the sensing plate (6) is within the sensing range of the sensor (5); when the movable gripper is driven to rotate relative to the connecting block (301), the sensing plate (6) leaves the sensing range of the sensor (5).

7. The clamping mechanism according to claim 2, characterized in that, The elastic element (307) is a spring.

8. The clamping mechanism according to claim 1, characterized in that, The number of elastic grippers (3) is multiple, the number of fixed grippers (4) is the same as the number of elastic grippers (3), and the positions of the elastic grippers (3) correspond one-to-one with the positions of the fixed grippers (4).

9. The clamping mechanism according to claim 2, characterized in that, Both the movable gripper (302) and the fixed gripper (4) are provided with a buffer layer.

10. The clamping mechanism according to claim 9, characterized in that, The buffer layer is a rubber layer or a silicone layer.

Images