Quick adjustment mechanism for an electric clamping device

Abstract

The utility model discloses a kind of quick adjusting mechanism of electric clamping device, belong to clamping device technical field, its technical scheme main points include support frame, the inside of the support frame is provided with clamping component, the outside of the clamping component is provided with adjusting component, the clamping component includes the drive motor of fixed connection in the outside of support frame, can solve the quick adjusting mechanism of existing electric clamping device usually lacks the self-adaptive clamping ability of different size workpieces, inconvenient to cope with the diversity of workpiece size, so when facing different specifications workpieces need to frequently replace clamping part or adjust structure, affect production efficiency and equipment versatility, and lack the function of automatically adjusting clamping force according to workpiece hardness, inconvenient to accurately control clamping force, so it is easy to appear because of clamping force improper and lead to workpiece damage or loosening condition, affect processing quality and workpiece safety problem.

Description

Technical Field

[0001] This utility model relates to the field of clamping device technology, and in particular to a quick adjustment mechanism for an electric clamping device. Background Technology

[0002] As a key actuator in automated equipment, electric clamping devices are widely used in industrial automated production lines such as automotive parts assembly, 3C product manufacturing, robot gripping systems, precision machining equipment, and medical surgical instruments. Their core function is to achieve stable clamping and release of workpieces through electric drive, while rapid adjustment refers to the ability to quickly adjust the clamping force, clamping range, or clamping posture under different working conditions to adapt to diverse operational needs.

[0003] To address the aforementioned issues, existing patents have provided solutions. However, the quick-adjustment mechanisms of existing electric clamping devices typically lack the ability to adaptively clamp workpieces of different sizes, making it difficult to handle the diversity of workpiece dimensions. Consequently, when dealing with workpieces of different specifications, it is necessary to frequently change clamping components or adjust the structure, affecting production efficiency and equipment versatility. Furthermore, they lack the function of automatically adjusting the clamping force based on the workpiece hardness, making it difficult to accurately control the clamping force. This can easily lead to workpiece damage or loosening due to improper clamping force, affecting processing quality and workpiece safety.

[0004] To address this, a rapid adjustment mechanism for an electric clamping device is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a quick adjustment mechanism for an electric clamping device, which can solve the problems of existing electric clamping devices that usually lack adaptive clamping capability for workpieces of different sizes, making it inconvenient to cope with the diversity of workpiece sizes. As a result, when dealing with workpieces of different specifications, it is necessary to frequently change clamping components or adjust the structure, which affects production efficiency and equipment versatility. Moreover, it lacks the function of automatically adjusting the clamping force according to the hardness of the workpiece, making it inconvenient to accurately control the clamping force. This can easily lead to workpiece damage or loosening due to improper clamping force, affecting processing quality and workpiece safety.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a quick adjustment mechanism for an electric clamping device, comprising a support frame, wherein a clamping component is disposed inside the support frame, and an adjustment component is disposed outside the clamping component; The clamping assembly includes a drive motor fixedly connected to the outside of the support frame. A dual-axis lead screw is fixedly connected to the output end of the drive motor. A moving block is threaded to the outside of the dual-axis lead screw. A clamp support is fixedly connected to the top of the moving block. A clamping plate is fixedly connected to the inner side of the clamp support. Extension clamps are slidably connected to both sides of the clamping plate. A cylinder is fixedly connected to the inner side of the extension clamp. A compression spring is fixedly connected inside the cylinder. An auxiliary clamping rod is fixedly connected inside the compression spring.

[0007] Preferably, the adjustment assembly includes a pneumatic controller fixedly connected to the outside of the clamp support, and the output end of the pneumatic controller is connected to an air guide pipe.

[0008] Preferably, an adjusting airbag is connected to the outside of the air duct, the adjusting airbag is located inside the clamp, and a connecting spring is provided inside the adjusting airbag.

[0009] Preferably, a connecting rod is fixedly connected to the outer side of the connecting spring, and a predictive pressure plate is fixedly connected to the outer side of the connecting rod.

[0010] Preferably, a limiting groove is provided at the top of the support frame, and a limiting slider is slidably connected inside the limiting groove. The limiting slider is fixedly connected to the clamp support.

[0011] Preferably, a control valve is provided on the outside of the air guide tube, and the control valve is electrically connected to the air pressure controller.

[0012] Preferably, the regulating airbag has a detection chamber inside, and the detection chamber is slidably connected to the connecting rod.

[0013] Preferably, a mounting base is fixedly connected to the bottom of the support frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This application enables the clamping component to clamp and fix workpieces of different sizes, improving the adaptability of the clamping device to workpiece size. Compared with the traditional device, it can adapt to uneven workpiece surfaces, realize the functions of rapid positioning and preliminary clamping, and solve the problem that the clamping range of the traditional device is fixed and it is difficult to adapt to workpieces of different sizes. 2. This application achieves the effect of automatically adjusting the clamping force according to the workpiece hardness through the adjustment component, which improves the accuracy and reliability of clamping. Compared with the traditional device, it realizes the dynamic adjustment of clamping force, solves the problem that the clamping force of the traditional device cannot be automatically adjusted according to the workpiece hardness, and is prone to workpiece damage or loosening. It can realize the adaptive clamping function for workpieces with different hardness. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the rapid adjustment mechanism of the electric clamping device of this utility model; Figure 2 This is a schematic diagram of the clamping assembly of this utility model; Figure 3 This is a schematic diagram of the structure of the adjustment component of this utility model; Figure 4 This is a schematic diagram showing the disassembled support frame of this utility model; Figure 5 This is a schematic diagram of the structure of the clamp support of this utility model; Figure 6 This is a cross-sectional view of the clamping plate of this utility model.

[0016] In the diagram, 1. Support frame; 2. Limiting slide groove; 3. Limiting slider; 4. Clamping assembly; 401. Drive motor; 402. Dual-axis lead screw; 403. Moving block; 404. Fixture support; 405. Clamping plate; 406. Extension clamp; 407. Cylinder; 408. Compression spring; 409. Auxiliary clamping rod; 5. Adjustment assembly; 501. Air pressure controller; 502. Air guide pipe; 503. Adjusting airbag; 504. Connecting spring; 505. Connecting rod; 506. Predictive pressure plate; 6. Control valve; 7. Detection chamber; 8. Mounting base. Detailed Implementation

[0017] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-6 The present invention provides the following technical solution: A quick adjustment mechanism for an electric clamping device includes a support frame 1, a clamping component 4 is disposed inside the support frame 1, and an adjustment component 5 is disposed outside the clamping component 4. The clamping assembly 4 includes a drive motor 401 fixedly connected to the outside of the support frame 1. A dual-axis lead screw 402 is fixedly connected to the output end of the drive motor 401. A moving block 403 is threadedly connected to the outside of the dual-axis lead screw 402. A clamp support 404 is fixedly connected to the top of the moving block 403. A clamping plate 405 is fixedly connected to the inside of the clamp support 404. An extension clamp 406 is slidably connected to both sides of the clamping plate 405. A cylinder 407 is fixedly connected to the inside of the extension clamp 406. A compression spring 408 is fixedly connected inside the cylinder 407. An auxiliary clamping rod 409 is fixedly connected inside the compression spring 408.

[0019] In this embodiment: by starting the drive motor 401, its output shaft drives the dual-axis lead screw 402 to rotate. The moving block 403 on the outer side of the dual-axis lead screw 402 moves along the lead screw direction due to the threaded transmission. The clamp support 404 on the top of the moving block 403 moves accordingly, causing the inner clamping plate 405 to move towards the workpiece. At the same time, the extension clamps 406 on both sides of the clamping plate 405 can slide on the clamping plate 405. The clamping range is adjusted according to the approximate size of the workpiece. When the clamping plate 405 is close to the workpiece, the extension clamps 406 first contact the edge of the workpiece and slide to initially position the clamping position. When the clamping plate 405 is in full contact with the workpiece, the workpiece applies pressure to the predictive pressure plate 506 on the inner side of the clamping plate 405. At the same time, the compression spring 408 and the auxiliary clamping rod 409 in the inner cylinder 407 of the extension clamping rod 406 play their roles. The auxiliary clamping rod 409 is compressed into the cylinder 407 under pressure, and the compression spring 408 is compressed. Through elastic buffering, it adapts to the unevenness of the workpiece surface and realizes the initial clamping and fixing of the workpiece.

[0020] Specifically, such as Figure 3 As shown, the adjustment component 5 includes a pneumatic controller 501 fixedly connected to the outside of the clamp support 404, and the output end of the pneumatic controller 501 is connected to an air guide pipe 502.

[0021] Specifically, such as Figure 3 As shown, an adjusting airbag 503 is connected to the outside of the air duct 502. The adjusting airbag 503 is located inside the clamp 405, and a connecting spring 504 is provided inside the adjusting airbag 503.

[0022] Specifically, such as Figure 3 As shown, a connecting rod 505 is fixedly connected to the outer side of the connecting spring 504, and a predictive pressure plate 506 is fixedly connected to the outer side of the connecting rod 505.

[0023] In this embodiment: after the clamping assembly 4 completes the initial clamping, the pneumatic controller 501 is activated, and air is injected into the adjusting airbag 503 inside the clamping plate 405 through the air guide pipe 502. After the adjusting airbag 503 expands, it pushes the predictive pressure plate 506 to move towards the workpiece, so that the predictive pressure plate 506 is tightly attached to the surface of the workpiece. The predictive pressure plate 506 is connected to the connecting spring 504 through the connecting rod 505. During the attachment process, the connecting spring 504 can buffer the impact force caused by the unevenness of the workpiece surface to ensure uniform attachment force. The detection chamber 7 monitors the connection in real time. The displacement of rod 505 is such that when the workpiece has high hardness, the reaction force on the pressure plate 506 is large, and the displacement of connecting rod 505 in the detection chamber 7 is small. The detection chamber 7 feeds this signal back to the pneumatic controller 501, which increases the inflation volume, so that the regulating airbag 503 generates a larger clamping force. When the workpiece has low hardness, the displacement of the pressure plate 506 is large. After the detection chamber 7 feeds back the signal, the pneumatic controller 501 reduces the inflation volume and decreases the clamping force to avoid damaging the workpiece, thus realizing the automatic adjustment of clamping force according to the hardness of the workpiece.

[0024] Specifically, such as Figure 4 As shown, a limiting groove 2 is provided on the top of the support frame 1, and a limiting slider 3 is slidably connected inside the limiting groove 2. The limiting slider 3 is fixedly connected to the clamp support 404.

[0025] Specifically, such as Figure 6 As shown, a control valve 6 is provided on the outside of the air duct 502, and the control valve 6 is electrically connected to the air pressure controller 501.

[0026] In this embodiment: by setting a limiting groove 2 and a limiting slider 3, when the drive motor 401 drives the dual-axis lead screw 402 to rotate and the moving block 403 moves along the lead screw, the limiting slider 3 slides in the limiting groove 2, which limits and guides the movement of the moving block 403, ensuring that the fixture support 404 moves smoothly and that the clamping plate 405 accurately approaches the workpiece, avoiding deviation during movement and ensuring the accuracy of the clamping position. By setting a control valve 6, the clamping force can be precisely controlled. The gas flow rate of the guiding air tube 502 is adjusted, thereby regulating the air pressure inside the regulating airbag 503. When the clamping force needs to be increased, the control valve 6 increases the gas flow rate, and the air pressure controller 501 fills the regulating airbag 503 with more gas. The regulating airbag 503 expands and pushes the predictive pressure plate 506 to adhere to the workpiece with greater pressure. When the clamping force needs to be reduced, the control valve 6 reduces the gas flow rate, the air pressure inside the regulating airbag 503 decreases, and the pressure of the predictive pressure plate 506 on the workpiece decreases accordingly, thus achieving precise control of the clamping force.

[0027] Specifically, such as Figure 6 As shown, the airbag 503 has a detection chamber 7 inside, and the detection chamber 7 is slidably connected to the connecting rod 505.

[0028] Specifically, such as Figure 1 As shown, a mounting base 8 is fixedly connected to the bottom of the support frame 1.

[0029] In this embodiment: By setting up a detection chamber 7, when the predicted pressure plate 506 is subjected to workpiece pressure, the connecting rod 505 drives the connecting spring 504 to compress. The connecting rod 505 slides in the detection chamber 7, and the detection chamber 7 can sense the displacement of the connecting rod 505, thereby monitoring the pressure of the workpiece on the predicted pressure plate 506 in real time and feeding the signal back to the pneumatic controller 501. The pneumatic controller 501 can then dynamically adjust the air pressure of the airbag 503 according to the feedback signal to ensure the appropriate clamping force. By setting up a mounting base 8, the entire mechanism is securely installed on the automated equipment, providing a reliable installation foundation for the mechanism and ensuring that the mechanism remains stable during operation, avoiding the impact on the clamping effect and the safety of equipment operation due to insecure installation.

[0030] Working Principle: When using the quick adjustment mechanism of this electric clamping device, the entire mechanism is first fixed to the required equipment via the mounting base 8. When a workpiece needs to be clamped, the drive motor 401 is started. The drive motor 401 outputs power to drive the dual-axis lead screw 402 to rotate. Since the outer thread of the dual-axis lead screw 402 is connected to the moving block 403, the moving block 403 will move along the direction of the lead screw under the rotation of the dual-axis lead screw 402. At the same time, the limiting slider 3 slides in the limiting groove 2 at the top of the support frame 1, which limits and guides the movement of the moving block 403, ensuring that the moving block 403 moves smoothly, thereby driving the clamp support 4. 04. Move the clamping plate 405 closer to the workpiece. As the clamping plate 405 gradually approaches the workpiece, the extension clamping seat 406 slides on both sides of the clamping plate 405. The clamping range can be initially adjusted according to the approximate size of the workpiece. When the clamping plate 405 contacts the workpiece, the workpiece will exert pressure on the predictive pressure plate 506. The predictive pressure plate 506 drives the connecting spring 504 to compress via the connecting rod 505. At this time, the detection chamber 7 can sense the movement of the connecting rod 505, thereby initially detecting the presence of the workpiece and the approximate pressure. Then, the pneumatic controller 501 inflates the adjusting airbag 503 inside the clamping plate 405 through the air guide pipe 502. The expansion of airbag 503 pushes the predictive pressure plate 506 to adhere to the workpiece. When the workpiece has low hardness, the air pressure inside the regulating airbag 503 can be reduced through the control valve 6, reducing the expansion degree of the regulating airbag 503. Under the action of the connecting spring 504, the predictive pressure plate 506 contacts the workpiece with less pressure, avoiding damage to the regulating airbag 503 due to excessive hardness. If the workpiece has high hardness, the air pressure controller 501 increases the inflation volume, and the regulating airbag 503 pushes the pressure plate to apply a greater clamping force. At the same time, the compression spring 408 and the auxiliary clamping rod 409 are further compressed, and mechanical buffering prevents excessive deformation of the flexible structure formed by the regulating airbag 503. In addition, the drive electric... The forward and reverse rotation of the machine 401 controls the rotation direction of the dual-axis lead screw 402, thereby driving the moving block 403 to move back and forth, realizing rapid adjustment of the clamping range to adapt to workpieces of different sizes. When it is necessary to release the workpiece, the drive motor 401 reverses, driving the dual-axis lead screw 402 to rotate in the opposite direction. The moving block 403 drives the clamp support 404 away from the workpiece. At the same time, the pneumatic controller 501 controls the regulating air bag 503 to release air, and the regulating air bag 503 contracts. The pressure plate 506 separates from the workpiece, the extension clamp 406 slides back to its original position on the clamping plate 405, and the auxiliary clamping rod 409 resets under the action of the compression spring 408, completing the release of the workpiece.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick adjustment mechanism for an electric clamping device, comprising a support frame (1), characterized in that: The support frame (1) is provided with a clamping component (4) inside, and an adjustment component (5) is provided on the outside of the clamping component (4). The clamping assembly (4) includes a drive motor (401) fixedly connected to the outside of the support frame (1). The output end of the drive motor (401) is fixedly connected to a dual-axis lead screw (402). The outer side of the dual-axis lead screw (402) is threadedly connected to a moving block (403). The top of the moving block (403) is fixedly connected to a clamp support (404). The inner side of the clamp support (404) is fixedly connected to a clamping plate (405). Both sides of the clamping plate (405) are slidably connected to extension clamps (406). The inner side of the extension clamps (406) is fixedly connected to a cylinder (407). The inside of the cylinder (407) is fixedly connected to a compression spring (408). The inside of the compression spring (408) is fixedly connected to an auxiliary clamping rod (409).

2. The quick adjustment mechanism of the electric clamping device according to claim 1, characterized in that: The adjustment assembly (5) includes a pneumatic controller (501) fixedly connected to the outside of the clamp support (404), and the output end of the pneumatic controller (501) is connected to an air guide pipe (502).

3. The quick adjustment mechanism of the electric clamping device according to claim 2, characterized in that: An adjusting airbag (503) is connected to the outside of the air duct (502). The adjusting airbag (503) is located inside the clamp (405). A connecting spring (504) is provided inside the adjusting airbag (503).

4. The quick adjustment mechanism of the electric clamping device according to claim 3, characterized in that: A connecting rod (505) is fixedly connected to the outside of the connecting spring (504), and a predictive pressure plate (506) is fixedly connected to the outside of the connecting rod (505).

5. The quick adjustment mechanism of the electric clamping device according to claim 1, characterized in that: The top of the support frame (1) has a limiting groove (2), and the inside of the limiting groove (2) is connected to a limiting slider (3), which is fixedly connected to the clamp support (404).

6. The quick adjustment mechanism of the electric clamping device according to claim 2, characterized in that: A control valve (6) is provided on the outside of the air duct (502), and the control valve (6) is electrically connected to the air pressure controller (501).

7. The quick adjustment mechanism of the electric clamping device according to claim 3, characterized in that: The regulating airbag (503) has a detection chamber (7) inside, and the detection chamber (7) is slidably connected to the connecting rod (505).

8. The quick adjustment mechanism of the electric clamping device according to claim 1, characterized in that: The bottom of the support frame (1) is fixedly connected to a mounting base (8).

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