CN223558258U

CN223558258U - Hydraulic clamp

Info

Publication number: CN223558258U
Application number: CN202422947465.XU
Authority: CN
Inventors: 余朝金; 张振华
Original assignee: Zhaoqing Hongchuang Precision Technology Co ltd
Current assignee: Zhaoqing Hongchuang Precision Technology Co ltd
Priority date: 2024-11-29
Filing date: 2024-11-29
Publication date: 2025-11-18
Anticipated expiration: 2034-11-29

Abstract

This application provides a hydraulic clamp, including a clamping structure and an adjusting base fixed to the lower end of the clamping structure. The adjusting base includes a fixed plate, a connecting plate, and a hydraulic rod. One end of the connecting plate is rotatably connected to the fixed plate. The hydraulic rod drives the fixed plate to rotate around the rotating part through a transmission shaft, thereby achieving angle adjustment. The design of the rotating shaft and the rotating groove precisely controls the rotation angle of the fixed plate. The scale provides a clear angle indication to ensure adjustment accuracy. The hydraulic rod provides a stable torque through hydraulic transmission, making the angle adjustment both precise and stable. This design allows the hydraulic clamp to flexibly adjust the clamping angle according to the material or workpiece requirements, improving operating efficiency and enhancing adaptability. At the same time, it avoids the angle limitations and complex operations of traditional clamps, simplifies the structure, and improves overall reliability and convenience.

Description

Hydraulic clamp

Technical Field

The application relates to the field of clamps, in particular to a hydraulic clamp.

Background

The hydraulic clamp is used as an important tool clamp, is widely applied to the fields of industrial manufacturing, assembly processing and the like, and plays a key role in the clamping and fixing processes of materials. The traditional hydraulic clamp generally clamps a workpiece through a hydraulic driving structure, and has the characteristics of strong clamping force and convenient operation. However, such hydraulic clamps are typically of a fixed structural design, and are difficult to meet the requirements for different angle clamping of the workpiece in certain situations. Due to the lack of angle adjustment functionality, conventional hydraulic jigs have certain limitations in facing the scene requiring multi-angle machining or assembly.

In order to solve the problem that the angle of the traditional hydraulic clamp cannot be adjusted, some schemes are proposed in the prior art. For example, there are techniques that enable the clamping structure to rotate relative to the base by providing a swivel base or a movable joint, thereby enabling angular adjustment. Still other solutions enable the fixture to be angularly adjustable within a specific range by means of an electric or mechanical drive system to accommodate the machining requirements of different workpieces. The problems of angle adjustment are solved to a certain extent by the technologies, and the adaptability and the flexibility of the hydraulic clamp are improved.

Although the prior art enables angular adjustment of the hydraulic clamp, there are some drawbacks. Firstly, some schemes based on a rotating base or a movable joint are complex in design, so that the whole structure of the device is huge and is difficult to adapt to a compact working space, secondly, a driving system usually depends on an additional control device or an external power source, so that maintenance cost and operation complexity are increased, and in addition, the existing schemes still have defects in the aspect of stability of angle adjustment, and can cause loosening or deflection of a clamp when a large clamping force is applied, so that the machining precision of a workpiece is influenced. Therefore, aiming at the problems, the hydraulic clamp which can adjust the angle and has simple structure and high stability is provided, and the hydraulic clamp has important application value and practical significance.

Disclosure of utility model

In view of the foregoing, it is necessary to provide a hydraulic clamp capable of adjusting an angle to solve the above-described problems.

The embodiment of the application provides a hydraulic clamp, which comprises a clamping structure and an adjusting base fixed at the lower end of the clamping structure, wherein the adjusting base comprises:

The fixing plate is fixed at the lower end of the clamping structure;

The connecting plate is arranged in parallel with the fixed plate, and one end of the connecting plate is rotationally connected with the fixed plate to form a rotating part;

One end of the hydraulic rod penetrates through the connecting plate along the first direction and abuts against the fixing plate, the other end of the hydraulic rod is fixed on the fixing plate, the setting direction perpendicular to the clamping structure and the adjusting base is marked as the first direction, and the hydraulic rod can drive the fixing plate to rotate around the rotating part when being observed along the first direction.

In at least one embodiment of the present application, the connection plate includes a rotation shaft, a rotation groove is formed in the rotation portion when viewed along the first direction, one end of the fixing plate is disposed in the rotation groove, the rotation shaft sequentially penetrates through the rotation groove and the fixing plate along the first direction and is fixed on the rotation portion, and the rotation shaft is rotationally connected with the fixing plate.

In at least one embodiment of the application, the connection plate comprises a dial, which is provided on the rotation part and fixedly connected with the rotation shaft, the dial having graduation marks of 0 ° to 180 ° as seen in the first direction, the fixation plate having a minimum angle with the connection plate around the rotation shaft when the connection plate abuts against the fixation plate towards the plane of the fixation plate, the 0 ° graduation marks of the dial being aligned with the edge line of the intersection of the fixation plate and the connection plate.

In at least one embodiment of the present application, the connecting plate is provided with a receiving hole, as viewed in a direction perpendicular to the first direction, and the hydraulic rod penetrates through the receiving hole and abuts against the fixing plate.

In at least one embodiment of the present application, the hydraulic rod includes a transmission shaft, and the transmission shaft abuts against the fixing plate when viewed along the first direction, and the hydraulic rod can drive the transmission shaft to stretch and retract along the first direction, so as to drive the fixing plate to rotate around the rotation axis.

In at least one embodiment of the present application, the clamping structure includes a hydraulic structure, a sliding clamping plate, and a fixed clamping plate sequentially disposed in the same direction;

The hydraulic structure is in transmission connection with the sliding clamping plate, and in the length direction of the hydraulic structure, the hydraulic structure can drive the sliding clamping plate to clamp on the fixed clamping plate.

In at least one embodiment of the present application, the clamping structure further includes a fixing base, one end of the fixing base is fixedly connected with the fixing plate, the other end is movably connected with the hydraulic structure, the sliding clamping plate and the fixing clamping plate are respectively arranged at two ends of the fixing base, one end of the hydraulic structure is fixedly connected with the fixing base, and the other end is in transmission connection with the sliding clamping plate;

The fixed base is provided with a sliding groove penetrating along the first direction, and the hydraulic structure can drive the sliding clamping plate to slide along the length direction of the sliding groove.

In at least one embodiment of the present application, the sliding clamping plate includes a guide block, the guide block is fixedly connected with the sliding clamping plate, the hydraulic structure penetrates through the guide block and is in transmission connection with the sliding clamping plate, and the guide block is disposed in the sliding groove and is in sliding connection with the sliding groove.

In at least one embodiment of the application, the contact surfaces of the sliding clamping plate and the fixed clamping plate as well as the clamped materials are coated with an anti-slip layer.

In at least one embodiment of the application, the rotating shaft is stainless steel.

The hydraulic clamp provided by the above realizes the function of angle adjustment by designing and adjusting the base and the connection mode of the base and the clamping structure. Specifically, the adjusting base comprises a fixed plate, a connecting plate and a hydraulic rod, wherein one end of the connecting plate is rotationally connected with the fixed plate, and the hydraulic rod drives the fixed plate to rotate along the rotating part through a transmission shaft of the hydraulic rod, so that the angle adjustment of the clamping structure is realized. Through the setting of axis of rotation and rotation groove, the rotation angle of fixed plate can be accurately controlled to the connecting plate, and the addition of calibrated scale further provides clear angle indication, ensures the precision of angle adjustment. In addition, the hydraulic rod provides stable moment through a hydraulic transmission mode, so that the angle adjustment is accurate and stable. Through this design, hydraulic fixture can be according to the demand adjustment clamping angle of material or work piece, has promoted the flexibility and the adaptability of equipment, has strengthened the operating efficiency under different work piece centre gripping and processing environment, and simple structure, convenient operation have avoided the angle restriction and the complex operation of traditional anchor clamps.

Drawings

FIG. 1 is a front view of a hydraulic clamp;

FIG. 2 is a partial block diagram of a hydraulic clamp;

FIG. 3 is an axially exploded view of a hydraulic clamp;

FIG. 4 is a disassembled view of the adjustment base;

FIG. 5 is a front view of the clamping structure;

FIG. 6 is an axially exploded view of a front view of the clamping structure;

fig. 7 is a top view of the clamping structure.

Description of the main reference signs

1. A clamping structure; 2, an adjusting base, 3, a fixing plate, 4, a connecting plate, 5, a rotating part, 6, a hydraulic rod, F, a first direction, 8, a rotating groove, 9, a rotating shaft, 10, a dial, 12, a containing hole, 13, a transmission shaft, 14, a sliding clamping plate, 15, a fixing clamping plate, 16, a hydraulic structure, 17, a fixing base, 18, a sliding groove, 19, a guide block and 100, and a hydraulic clamp.

Detailed Description

Embodiments of the present application will now be described with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application.

It is noted that when one component is considered to be "connected" to another component, it may be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed" on another element, it can be directly on the other element or intervening elements may also be present. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "rear," and the like are used herein for illustrative purposes only.

The fixing plate is fixed at the lower end of the clamping structure;

Some embodiments of the present application are described in detail below with reference to fig. 1-7. The following embodiments and features of the embodiments may be combined with each other without conflict.

An embodiment of the present application provides a hydraulic clamp 100, including a clamping structure 1 and an adjusting base 2 fixed to a lower end of the clamping structure 1, the adjusting base 2 including:

the fixing plate 3 is fixed at the lower end of the clamping structure 1;

The connecting plate 4 is arranged in parallel with the fixed plate 3, and one end of the connecting plate 4 is rotationally connected with the fixed plate 3 to form a rotating part 5;

One end of the hydraulic rod 6 penetrates through the connecting plate 4 along the first direction F and abuts against the fixed plate 3, the other end of the hydraulic rod 6 is fixed on the fixed plate 3, the setting direction perpendicular to the clamping structure 1 and the adjusting base 2 is marked as the first direction F, and the hydraulic rod 6 can drive the fixed plate 3 to rotate around the rotating part 5 when being observed along the first direction F.

Specifically, the hydraulic clamp realizes the angle adjusting function through the design of the fixing plate 3, the connecting plate 4 and the hydraulic rod 6. The transmission shaft 13 of the hydraulic rod 6 penetrates through the connecting plate 4 and is rotatably connected with the fixed plate 3, and the fixed plate 3 is driven to rotate around the rotating part 5 by hydraulic pressure, so that the angle of the clamping structure 1 is adjusted. In the characteristic connection, the hydraulic rod 6 is used for providing a rotation moment through hydraulic driving, and the angle adjustment is realized through the rotation connection of the rotation part 5 and the fixed plate 3. In terms of position, the rotation shaft 9 between the connection plate 4 and the fixing plate 3 enables the fixing plate 3 to rotate smoothly to a desired angle. The hydraulic rod 6 has the beneficial effects that the hydraulic rod 6 provides accurate and stable force transmission, so that the angle adjusting process is more stable and efficient, and the problems of inaccurate angle adjustment and complicated operation of the traditional clamp are avoided. Through hydraulic drive, the fixture can firmly clamp the workpiece under different angles, thereby meeting various process requirements. Particularly in the scene that needs adjustment clamping angle, hydraulic drive's stability and high efficiency can effectively improve work efficiency and operating accuracy. For example, in the machining or precise assembly process of the numerical control machine tool, accurate clamping angle adjustment can ensure that workpieces cannot deform or displace during clamping, and the safety and reliability of clamping are improved.

More, the connecting plate 4 includes a rotation shaft 9, and is observed along the first direction F, a rotation groove 8 is formed in the rotation portion 5, one end of the fixing plate 3 is disposed in the rotation groove 8, and the rotation shaft 9 sequentially penetrates through the rotation groove 8 and the fixing plate 3 along the first direction F and is fixed on the rotation portion 5, and the rotation shaft 9 is rotationally connected with the fixing plate 3.

Specifically, the design of adding the rotation shaft 9 and the rotation groove 8 further improves the accuracy and stability of angle adjustment. The rotating groove 8 is formed in the connecting plate 4 and is tightly matched with the rotating shaft 9, and the rotating shaft 9 penetrates through the rotating groove 8 and the fixed plate 3 and is in rotating connection with the fixed plate 3. The characteristic connection relation of the design ensures stable rotation of the fixed plate 3 during adjustment, the rotation action of the fixed plate 3 is controlled by combining the rotation shaft 9 and the rotation groove 8, and excessive friction or unstable phenomenon in the rotation process is avoided. By this design, it is ensured that the angular adjustment of the clamping structure 1 has a high accuracy and a high reliability. In the application, the rotation groove 8 and the rotation shaft 9 are matched to enable the angle adjustment to be very smooth, the problem that the angle adjustment is inaccurate due to unstable structure or loosening of adjusting parts in a traditional clamp is avoided, and stable operation can be carried out on occasions with high precision requirements.

Further, the connection plate 4 includes a dial 10, the dial 10 is disposed on the rotation portion 5 and is fixedly connected with the rotation shaft 9, the dial 10 has scale lines of 0 ° to 180 ° when viewed along the first direction F, and when the connection plate 4 abuts against the fixing plate 3 toward the plane of the fixing plate 3, the fixing plate 3 and the connection plate 4 have a minimum angle around the rotation shaft 9, and at this time, the 0 ° scale line of the dial 10 is aligned with an edge line of the intersection of the fixing plate 3 and the connection plate 4.

Specifically, the design of the dial 10 is added, and the dial 10 is marked with scale marks of 0-180 degrees, so that the accuracy and operability of angle adjustment are further improved. The rotation shaft 9 is fixedly connected with the dial 10, and when the connecting plate 4 is rotated to the fixed plate 3, the 0 degree scale line is aligned with the intersection edge line of the fixed plate 3, thereby providing clear angle indication. The characteristic connection relation of the design enables operators to clearly know the current clamping angle through the dial 10, and errors in angle adjustment are avoided. By means of the dial 10, the operator can quickly and accurately perform the angle setting without having to rely on external tools. This design is particularly important for applications where the angular accuracy is required, for example, during precision machining, assembly and inspection, fine adjustment of the angle may directly affect the machining accuracy or product quality. The use of dial 10 makes the clamp operation more convenient, enhancing its adaptability to complex tasks.

More, viewed along the direction perpendicular to the first direction F, the connecting plate 4 is provided with a receiving hole 12, and the hydraulic rod 6 penetrates through the receiving hole 12 and abuts against the fixing plate 3.

In particular, the design of the receiving bore 12 optimizes the fit of the hydraulic lever 6 with other components. The hydraulic rod 6 penetrates through the connecting plate 4 through the accommodating hole 12 and is effectively abutted against the fixed plate 3. The characteristic connection relation of the design enables the hydraulic rod 6 to accurately transmit power, and meanwhile displacement or deformation is not easy to occur in the transmission process. The arrangement of the accommodating hole 12 ensures the stability and accurate positioning of the hydraulic rod 6 in the clamp, so that the hydraulic rod 6 can stably exert driving force thereof to drive the fixing plate 3 to perform angle adjustment. By this design, the force of the hydraulic rod 6 is effectively transmitted, and the imprecise angle adjustment caused by loosening or instability of the clamp structure is avoided. Furthermore, the design of the receiving hole 12 simplifies the installation and maintenance of the hydraulic rod 6, reducing the complexity of the hydraulic system.

More, the hydraulic rod 6 includes a driving shaft 13, when viewed along the first direction F, the driving shaft 13 abuts against the fixing plate 3, and the hydraulic rod 6 can drive the driving shaft 13 to stretch and retract along the first direction F, so as to drive the fixing plate 3 to rotate around the rotation shaft 9.

In particular, the design of the transmission shaft 13 is introduced, and the hydraulic rod 6 drives the fixed plate 3 to rotate around the rotation shaft 9 through the transmission shaft 13. The characteristic connection of this design is that the drive shaft 13 effectively transmits the driving force of the hydraulic lever 6 to the fixed plate 3, thereby driving it to rotate about the rotation shaft 9. The design of the drive shaft 13 optimizes the power transmission of the hydraulic system so that the angle adjustment process is smoother and controllable. When the hydraulic system works, the transmission shaft 13 transmits power through the hydraulic rod 6 and drives the fixed plate 3 to move. The addition of the drive shaft 13 improves the stability and reaction speed of the system compared to conventional hydraulic clamps, so that the clamps can perform the task more efficiently and accurately when performing the angle adjustment.

Further, the clamping structure 1 comprises a hydraulic structure 16, a sliding clamping plate 14 and a fixed clamping plate 15 which are sequentially arranged along the same direction;

The hydraulic structure 16 is in transmission connection with the sliding clamping plate 14, and in the length direction of the hydraulic structure 16, the hydraulic structure 16 can drive the sliding clamping plate 14 to clamp on the fixed clamping plate 15.

Specifically, the combination of the hydraulic structure 16, the sliding clamp plate 14 and the fixed clamp plate 15 enables the hydraulic structure 16 to drive the sliding clamp plate 14 to clamp onto the fixed clamp plate 15. In the characteristic connection, the hydraulic structure 16 is in transmission connection with the sliding clamping plate 14, and the clamping force is generated through hydraulic driving to accurately clamp the materials. The design of the sliding clamping plate 14 and the fixed clamping plate 15 realizes flexible clamping force adjustment, and meets the requirements of different material sizes and shapes. The hydraulic structure 16 drives the sliding clamping plate 14 to slide so as to clamp or unclamp materials in the clamp. The beneficial effect of this design lies in, and hydraulic drive provides stable clamping force, can accurate control clamping pressure, has avoided the inhomogeneous problem of traditional anchor clamps power, can adjust clamping strength in a flexible way according to the demand of different materials simultaneously.

More, the clamping structure 1 further includes a fixing base 17, and one end of the fixing base 17 is fixedly connected with the fixing plate 3, the other end is movably connected with the hydraulic structure 16, the sliding clamping plate 14 and the fixing clamping plate 15 are respectively disposed at two ends of the fixing base 17, one end of the hydraulic structure 16 is fixedly connected with the fixing base 17, and the other end is in transmission connection with the sliding clamping plate 14;

The fixed base 17 is provided with a sliding groove 18 penetrating along the first direction F, and the hydraulic structure 16 can drive the sliding clamping plate 14 to slide along the length direction of the sliding groove 18.

Specifically, by designing the fixing base 17 so that the hydraulic structure 16, the slide clamp plate 14, and the fixing clamp plate 15 can slide along the slide groove 18, a larger clamping range is achieved. In the characteristic connection, the connection of the fixed base 17 with the hydraulic structure 16, the sliding clamping plate 14 and the fixed clamping plate 15 enables the clamp to clamp materials in a larger range during operation, and the design of the sliding groove 18 provides a moving path of the sliding clamping plate 14 so as to ensure smooth operation during clamping. Through this design, the clamp can adapt to the centre gripping demand of different materials, is particularly useful for the scene that the material size is different or the centre gripping scope is great. In use, the design of the sliding channel 18 provides a smooth sliding path, reduces friction and wear, and extends the useful life of the clamp.

More, the sliding clamping plate 14 includes a guide block 19, the guide block 19 is fixedly connected with the sliding clamping plate 14, and the hydraulic structure 16 penetrates through the guide block 19 and is in transmission connection with the sliding clamping plate 14, and the guide block 19 is disposed in the sliding groove 18 and is in sliding connection with the sliding groove 18.

Specifically, the guide block 19 is added to the sliding clamping plate 14, so that the sliding clamping plate 14 keeps a stable track during the sliding process. The guide block 19 is fixedly connected with the sliding clamping plate 14, so that the sliding clamping plate 14 can slide in the sliding groove 18 stably, and the situation of deviation or clamping stagnation during clamping operation is avoided. The characteristic connection relation of the design enables the sliding clamping plate 14 to be aligned accurately in the sliding process, and the precision and safety of clamping operation are improved. The guide block 19 not only increases stability, but also reduces friction between the sliding clamping plate 14 and the sliding groove 18, thereby improving operation smoothness.

More, the contact surfaces of the sliding clamping plate 14, the fixed clamping plate 15 and the clamped materials are coated with anti-slip layers.

Specifically, the contact surface of the sliding clamping plate 14 and the fixed clamping plate 15 is coated with an anti-slip layer, and the clamping force is improved by increasing the friction force, so that the clamp is prevented from sliding or loosening in the clamping process. The addition of the anti-slip layer enables the clamp to firmly clamp materials, and is particularly suitable for materials with smooth surfaces or easy sliding. In the application, the suitability of anchor clamps can effectively be improved to the skid resistant course, reduces the unstable problem of centre gripping because of the material slides, especially in the field that requires high clamping force, like metalworking or heavy machinery assembly, the skid resistant course can provide extra stability, ensures that the clamping force is stable continually.

Further, the rotating shaft 9 is made of stainless steel.

Specifically, the material of the rotation shaft 9 is selected to be stainless steel, and the strength, durability and corrosion resistance of the rotation part 5 are improved. The use of stainless steel ensures that the shaft 9 remains highly stable in a long-term, high-load environment of use, avoiding the problem of performance degradation of conventional materials due to wear or corrosion. The stainless steel material increases the corrosion resistance of the rotating shaft 9, is suitable for wet or chemical corrosion environments, and prolongs the service life of equipment.

While the application has been described with respect to the above embodiments, it should be noted that modifications can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the application.

Claims

1. The utility model provides a hydraulic fixture, includes clamping structure and is fixed in the regulation base of clamping structure lower extreme, its characterized in that, adjust the base and include:

The fixing plate is fixed at the lower end of the clamping structure;

Setting directions perpendicular to the clamping structure and the adjusting base are marked as first directions;

One end of the hydraulic rod penetrates through the connecting plate along the first direction and abuts against the fixing plate, the other end of the hydraulic rod is fixed on the fixing plate, and the hydraulic rod can drive the fixing plate to rotate around the rotating part when being observed along the first direction.

2. The hydraulic clamp according to claim 1, wherein the connecting plate includes a rotating shaft, a rotating groove is formed in the rotating portion when viewed along the first direction, one end of the fixing plate is disposed in the rotating groove, the rotating shaft penetrates through the rotating groove and the fixing plate in sequence along the first direction and is fixed on the rotating portion, and the rotating shaft is rotatably connected with the fixing plate.

3. A hydraulic clamp according to claim 2, wherein the connecting plate comprises a dial provided on the rotating part and fixedly connected to the rotating shaft, the dial having graduation marks of 0 ° to 180 ° as seen in the first direction, the fixing plate having a minimum angle with the connecting plate about the rotating shaft when the connecting plate abuts the fixing plate towards the plane of the fixing plate, the graduation marks of 0 ° of the dial being aligned with the edge line of the intersection of the fixing plate and the connecting plate.

4. The hydraulic clamp according to claim 1, wherein the connecting plate is provided with a receiving hole as viewed in a direction perpendicular to the first direction, and the hydraulic rod penetrates the receiving hole and abuts against the fixing plate.

5. The hydraulic clamp of claim 2, wherein the hydraulic lever includes a drive shaft that abuts the fixed plate when viewed in the first direction, and wherein the hydraulic lever is capable of driving the drive shaft to extend and retract in the first direction to rotate the fixed plate about the rotational axis.

6. The hydraulic clamp according to claim 1, wherein the clamping structure comprises a hydraulic structure, a sliding clamping plate and a fixed clamping plate which are sequentially arranged along the same direction;

7. The hydraulic clamp according to claim 6, wherein the clamping structure further comprises a fixing base, one end of the fixing base is fixedly connected with the fixing plate, the other end of the fixing base is movably connected with the hydraulic structure, the sliding clamping plate and the fixing clamping plate are respectively arranged at two ends of the fixing base, one end of the hydraulic structure is fixedly connected with the fixing base, and the other end of the hydraulic structure is in transmission connection with the sliding clamping plate;

8. The hydraulic clamp according to claim 7, wherein the sliding clamping plate comprises a guide block, the guide block is fixedly connected with the sliding clamping plate, the hydraulic structure penetrates through the guide block and is in transmission connection with the sliding clamping plate, and the guide block is arranged in the sliding groove and is in sliding connection with the sliding groove.

9. The hydraulic clamp according to claim 6, wherein the contact surfaces of the sliding clamping plate and the fixed clamping plate with the clamped materials are coated with an anti-slip layer.

10. A hydraulic clamp according to claim 2, wherein the rotating shaft is stainless steel.