Hydraulic plate clamping device with self-locking synchronization function

Abstract

The hydraulic plate clamping device with the self-locking synchronization function comprises a main frame body, and an installation frame is fixed to the top of the main frame body. A through cavity is formed in the main frame body, first sleeve shells are slidably connected to the left end and the right end of the through cavity correspondingly, and movable arms are slidably connected into the first sleeve shells correspondingly; the bottom of one end of each movable arm is fixedly connected with a second sleeve shell, and the bottom of each second sleeve shell is connected with a clamping plate. The hydraulic system effectively solves the problem that the external load cannot be overcome due to insufficient system pressure, and not only can the responsiveness and the precision of the hydraulic system be improved, but also the stability and the reliability of the whole system can be obviously improved by combining the hydraulic lock and the synchronous valve.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic clamping device technology, specifically a hydraulic clamping device with self-locking synchronization function. Background Technology

[0002] A hydraulic clamp is a mechanical device that operates on the principle of hydraulic pressure. This type of clamp has a strong clamping force and can stably fix workpieces of different shapes and sizes. It is mainly used for clamping, fixing, or moving workpieces. It has wide applications in industrial manufacturing, machining, automotive repair, and construction.

[0003] Current hydraulic clamps typically use two hydraulic cylinders to drive the clamping arms on both sides. However, due to slight differences in the internal friction of each hydraulic cylinder, and if one hydraulic cylinder has a slight leak, this can lead to differences in response time or movement speed, causing the clamping arms to move asynchronously. Furthermore, if the pressure of the hydraulic system is insufficient to overcome the external load, the hydraulic cylinder will not be able to effectively maintain its position, thus causing some inconvenience in the use of hydraulic clamps. Utility Model Content

[0004] The purpose of this utility model is to provide a hydraulic clamp with a self-locking synchronization function. By setting a hydraulic lock and a synchronization valve to work with the hydraulic cylinder, the two hydraulic cylinders can be used to ensure synchronous operation and achieve a self-locking effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hydraulic clamp with a self-locking synchronization function, comprising a main frame, a mounting frame fixed to the top of the main frame, and a mounting plate fixed to the top of the mounting frame;

[0006] The main frame body has a through cavity running from left to right. Both ends of the through cavity are slidably connected to a first shell, and each of the first shells is slidably connected to a movable arm.

[0007] A second housing is fixedly connected to the bottom of the outer end of each of the two movable arms, and a clamping plate is connected to the bottom of the second housing.

[0008] Each of the first housings is connected by a first pin, and the movable arm has multiple positioning holes that cooperate with the first pins, and the multiple positioning holes are arranged in the left-right direction.

[0009] A hydraulic lock and a synchronizing valve are installed in the middle of the side wall of the mounting bracket. Hydraulic cylinders extending to the left and right are respectively provided on the left and right sides of the hydraulic lock and the synchronizing valve. The far ends of the two hydraulic cylinders are respectively fixedly connected to the first housing on the corresponding side. The synchronizing valve and the hydraulic lock are both connected to the proximal end of the hydraulic cylinder.

[0010] Extension frames are fixedly connected to both the left and right sides of the main frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model effectively solves the problem of being unable to overcome external loads due to insufficient system pressure. By combining hydraulic locks and synchronization valves, it can not only improve the responsiveness and accuracy of the hydraulic system, but also significantly improve the stability and reliability of the entire system.

[0013] 2. In this utility model, after the first pin is pulled out from the positioning hole, the movable arm can be adjusted inside the first housing. After adjustment, the first pin can pass back through the first housing and the adjustment hole to limit the movable arm. The movable plate can slide inside the second housing, so that the height of the clamping plate can be adjusted. This design can expand the clamping range of this hydraulic clamping device and adapt to the clamping needs of plates of greater thickness, making the device more practical. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0016] Figure 3 This is a schematic diagram of the structure of this utility model after operation;

[0017] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the diagram;

[0018] Figure 5 This is a partial cross-sectional structural diagram of the present invention.

[0019] In the diagram: 1. Main frame; 2. Mounting frame; 3. Mounting plate; 4. Hydraulic cylinder; 5. Hydraulic lock; 6. Synchronization valve; 7. First housing; 8. Movable arm; 9. Second housing; 10. Movable plate; 11. Clamping plate; 12. Extension frame; 13. Hook; 14. Limiting block; 15. First pin; 16. First locking rod; 17. Adjustment hole; 18. Second pin; 19. Second locking rod; 20. Side support plate; 21. Protective frame; 22. Reinforcing rib. Detailed Implementation

[0020] Please see Figure 1-5 A hydraulic clamp with self-locking synchronization function includes a main frame 1, a mounting frame 2 fixed to the top of the main frame 1, and a mounting plate 3 fixed to the top of the mounting frame 2.

[0021] The main frame 1 has a through cavity running from left to right. The left and right ends of the through cavity are slidably connected to the first housing 7, and the first housing 7 is slidably connected to the movable arm 8.

[0022] The bottom of the outer ends of the two movable arms 8 are fixedly connected to the second housing 9, and the bottom of the second housing 9 is connected to the clamping plate 11.

[0023] The first housing 7 is connected to a first pin 15 through it, and the movable arm 8 is provided with a plurality of positioning holes for use with the first pin 15, and the plurality of positioning holes are arranged in the left-right direction.

[0024] A hydraulic lock 5 and a synchronizing valve 6 are installed in the middle of the side wall of the mounting bracket 2. Hydraulic cylinders 4 extending to the left and right are respectively provided on the left and right sides of the hydraulic lock 5 and the synchronizing valve 6. The far ends of the two hydraulic cylinders 4 are respectively fixedly connected to the first housing 7 on the corresponding side. The synchronizing valve 6 and the hydraulic lock 5 are both connected to the proximal end of the hydraulic cylinders 4.

[0025] Extension frames 12 are fixedly connected to both the left and right sides of the main frame 1.

[0026] It should be noted that the mounting plate 3 is used for fixed installation with other equipment, the extension frame 12 is used to increase the contact area of ​​the top of the plate, and improve the limiting effect of the plate. When the hydraulic cylinder 4 extends, it can drive the two movable arms 8 to move in opposite directions, so that the clamping plates 11 on both sides can clamp and fix the plate. The synchronization valve 6 monitors and adjusts the flow into or out of each hydraulic cylinder 4 to ensure that their actions are consistent. Even if one hydraulic cylinder 4 has a slight leak or a different rate due to friction, the synchronization valve 6 can adjust the flow of the other hydraulic cylinder 4 to compensate for this difference, thereby maintaining synchronization between the two hydraulic cylinders 4. 5 can prevent hydraulic oil from flowing out of hydraulic cylinder 4 when the power source is disconnected. Even if external load pressure is applied, the position of hydraulic cylinder 4 will not change. This effectively solves the problem of not being able to overcome external load due to insufficient system pressure. By combining hydraulic lock 5 and synchronization valve 6, not only can the responsiveness and accuracy of the hydraulic system be improved, but the stability and reliability of the entire system can also be significantly improved. After the first pin 15 is pulled out from the positioning hole, the movable arm 8 can be adjusted inside the first housing 7. After adjustment, the first pin 15 can also pass through the first housing 7 and the adjustment hole again to limit the movable arm 8.

[0027] Furthermore, a movable plate 10 slides up and down on the inner wall of the second housing 9, and a clamping plate 11 is installed at the bottom of the movable plate 10; a second pin 18 is connected through the second housing 9, and multiple adjustment holes 17 are opened on the surface of the movable plate 10 to cooperate with the second pin 18, and the multiple adjustment holes 17 are arranged in the vertical direction.

[0028] After the movable plate 10 moves to the required height position, the height position of the movable plate 10 can be fixed by passing the second pin 18 through the second housing 9 and the adjustment hole 17.

[0029] Through the above design, the movable plate 10 can slide inside the second housing 9, so that the height position of the clamping plate 11 can be adjusted. This design can expand the clamping range of this hydraulic clamp and adapt to the clamping needs of plates of greater thickness, making the device more practical.

[0030] Furthermore, a first locking rod 16 slides through the first pin 15, and a second locking rod 19 slides through the surface of the second pin 18.

[0031] It should be noted that passing the first locking rod 16 through the first pin 15 can limit the first pin 15, preventing it from being pulled out from the surface of the first housing 7. Passing the second locking rod 19 through the second pin 18 can also fix the second pin 18, preventing it from detaching from the inside of the second housing 9, thereby improving the stability of the movable arm 8 and the movable plate 10 during use.

[0032] Furthermore, the inner wall of the second shell 9 is fixed with multiple reinforcing ribs 22.

[0033] It should be noted that the reinforcing rib 22 can improve the overall structural strength of the second shell 9, making the second shell 9 more rigid and load-bearing, and reducing the occurrence of deformation.

[0034] Furthermore, hooks 13 are fixedly connected to both the front and rear sides of the main frame 1, and limit blocks 14 are hinged to the surface of the hooks 13.

[0035] It should be noted that the workpiece can be hoisted by the hook 13, thereby improving the practicality of the device. The limit block 14 can close the opening of the hook 13 to prevent the workpiece from falling out of the opening of the hook 13 after hoisting.

[0036] Furthermore, side support plates 20 and protective frames 21 are fixed on the top left and right sides of the main frame 1, and the surface of the side support plate 20 is fixedly connected to the surface of the protective frame 21.

[0037] It should be noted that the side support plate 20 can reinforce the protective frame 21, while the protective frame 21 can protect the oil circuit connection of the hydraulic cylinder 4, making the oil circuit connection of the hydraulic cylinder 4 less susceptible to collision damage.

[0038] Working principle: When the hydraulic cylinder 4 extends, it can drive the two movable arms 8 to move in opposite directions, so that the clamping plates 11 on both sides can clamp and fix the plate. The synchronization valve 6 monitors and adjusts the flow into or out of each hydraulic cylinder 4 to ensure that their actions are consistent. The hydraulic lock 5 can prevent hydraulic oil from flowing out of the hydraulic cylinder 4 when the power source is disconnected. By using the hydraulic lock 5 and the synchronization valve 6 in combination, not only can the responsiveness and accuracy of the hydraulic system be improved, but the stability and reliability of the entire system can also be significantly improved. After the first pin 15 is pulled out from the positioning hole, the movable arm 8 can be adjusted inside the first housing 7. After adjustment, the first pin 15 can also pass back through the first housing 7 and the adjustment hole to limit the movable arm 8. The movable plate 10 can slide inside the second housing 9 so that the height position of the clamping plate 11 can be adjusted. This design can expand the clamping range of this hydraulic clamp and adapt to the clamping needs of plates of greater thickness, making this device more practical.

[0039] 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 hydraulic clamp with self-locking synchronization function, characterized in that: Includes a main frame (1), with a mounting bracket (2) fixed to the top of the main frame (1), and a mounting plate (3) fixed to the top of the mounting bracket (2); The main frame (1) has a through cavity running from left to right. The left and right ends of the through cavity are slidably connected to the first shell (7), and the first shell (7) is slidably connected to the movable arm (8). The bottom of the outer ends of the two movable arms (8) are fixedly connected to a second shell (9), and the bottom of the second shell (9) is connected to a clamping plate (11); The first housing (7) is connected to the first pin (15) through it. The movable arm (8) has multiple positioning holes that cooperate with the first pin (15), and the multiple positioning holes are arranged in the left and right direction. A hydraulic lock (5) and a synchronizing valve (6) are installed in the middle of the side wall of the mounting bracket (2). The left and right sides of the hydraulic lock (5) and the synchronizing valve (6) are respectively provided with hydraulic cylinders (4) extending to the left and right. The far ends of the two hydraulic cylinders (4) are respectively fixedly connected to the first housing (7) on the corresponding side. The synchronizing valve (6) and the hydraulic lock (5) are both connected to the proximal end of the hydraulic cylinder (4). Extension frames (12) are fixedly connected to both the left and right sides of the main frame (1).

2. A hydraulic clamp with self-locking synchronization function according to claim 1, characterized in that: The inner wall of the second shell (9) has a movable plate (10) that slides up and down, and a clamping plate (11) is installed at the bottom of the movable plate (10).

3. A hydraulic clamp with self-locking synchronization function according to claim 2, characterized in that: The second housing (9) is connected to a second pin (18), and the surface of the movable plate (10) is provided with a plurality of adjustment holes (17) for use with the second pin (18), and the plurality of adjustment holes (17) are arranged in the vertical direction.

4. A hydraulic clamp with self-locking synchronization function according to claim 3, characterized in that: The first locking rod (16) slides through the first pin (15), and the second locking rod (19) slides through the surface of the second pin (18).

5. A hydraulic clamp with self-locking synchronization function according to claim 1, characterized in that: The inner wall of the second shell (9) is fixed with multiple reinforcing ribs (22).

6. A hydraulic clamp with self-locking synchronization function according to claim 1, characterized in that: The main frame (1) is fixedly connected to hooks (13) on both the front and rear sides, and the surface of the hooks (13) is hinged with limit blocks (14).

7. A hydraulic clamp with self-locking synchronization function according to claim 1, characterized in that: The main frame (1) has side support plates (20) and protective frames (21) fixed on the top left and right sides, and the surface of the side support plates (20) is fixedly connected to the surface of the protective frames (21).

Images