A hydraulic clamp

Abstract

The utility model discloses a hydraulic clamp, which relates to the technical field of hydraulic clamps, including a mounting base, a hydraulic cylinder, an articulated component and a first pressing plate, wherein a receiving groove is provided at one end of the first pressing plate, and both sides of the inner wall of the receiving groove are provided with limiting grooves, the inner part of the limiting groove is slidably connected to the limiting plate, an extension plate is installed on the outside of the limiting plate, and the other end of the extension plate is connected to the second pressing plate, and both sides of the outer wall of the extension plate are provided with straight tooth grooves. In the utility model, by setting the extension plate, the straight tooth groove and the gear, the gear on the first pressing plate is operated to make the extension plate move in the receiving groove, and the total length of the first pressing plate, the extension plate and the second pressing plate is quickly adjusted, so that it can provide clamping and fixing work for workpieces of different sizes, thereby improving its scope of application and flexibility of use, and there is no need to manually disassemble and adjust the position of the hydraulic clamp or replace pressing plates of different lengths, which saves time and effort and has high practicality.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic clamps, in particular to a hydraulic clamp. Background Art

[0002] A hydraulic clamp is a clamp that uses hydraulic components to replace mechanical parts and realizes automatic positioning, support and clamping of the workpiece through hydraulic control. It has the advantages of large clamping force, reliable clamping, stable operation and easy use. It is widely used in CNC machine tools, machining centers, automated production lines and other scenarios.

[0003] When using the existing hydraulic clamp, it is necessary to pre-assemble the pressure plate of appropriate length with the hydraulic cylinder and install it at the position corresponding to the size of the workpiece. This results in that each subsequent processing of workpieces of different sizes requires manual disassembly of the hydraulic clamp on the processing platform to adjust the position or change the length of the pressure plate, which greatly increases the labor intensity and reduces the processing efficiency of the workpiece. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the existing hydraulic clamp needs to assemble the pressure plate of appropriate length with the hydraulic cylinder in advance and install it at the position corresponding to the size of the workpiece when using it. This results in that when each subsequent processing of workpieces of different sizes, it is necessary to manually disassemble the hydraulic clamp on the processing platform to adjust the position or replace the length of the pressure plate, which greatly increases the labor intensity and reduces the processing efficiency of the workpiece. A hydraulic clamp is proposed to solve the problem that the existing hydraulic clamp needs to be assembled with the pressure plate of appropriate length and installed at the position corresponding to the size of the workpiece when using it.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A hydraulic clamp comprises a mounting base, a hydraulic cylinder, a hinged component and a first pressure plate, a receiving groove being provided at one end of the first pressure plate, limiting grooves being provided on both sides of the inner wall of the receiving groove, the limiting groove being internally slidably connected to a limiting plate, an extension plate being installed externally of the limiting plate, a second pressure plate being connected at the other end of the extension plate, straight tooth grooves being provided on both sides of the outer wall of the extension plate, rectangular openings being provided on both sides of one end of the first pressure plate, an adjustment mechanism being provided inside the rectangular opening.

[0007] Preferably, the adjustment mechanism comprises a gear, a non-return pawl and a central shaft, the central shaft and the gear are distributed in a cross shape, and one end of the central shaft is engaged with the inner wall of the rectangular opening.

[0008] Preferably, the central axis and the rectangular opening form a movable structure through a groove, the central axis and the gear are fixedly connected, and the outside of the gear is meshed with the straight tooth groove.

[0009] Preferably, the non-return pawl and the first pressure plate form a movable structure via a rotating shaft.

[0010] Preferably, an oil inlet and outlet pipe is provided outside the hydraulic cylinder, and a connection between the hydraulic cylinder and the first pressing plate forms a movable structure through a hinged component.

[0011] Preferably, a support member is installed between the first pressing plate and the hydraulic cylinder, the support member comprises a hinge seat and a support rod, and the support member and the first pressing plate are movably connected.

[0012] Preferably, a dustproof sheet is provided between the second pressing plate and the first pressing plate, the dustproof sheet is an accordion structure, and a base plate is installed at the bottom of the second pressing plate.

[0013] Preferably, a sleeve is provided at the bottom of the base plate, a spring is installed inside the sleeve, one end of the spring is connected to a push rod, and the sleeves are distributed in a matrix shape at the bottom of the base plate.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0015] 1. In the utility model, by setting an extension plate, a straight tooth groove and a gear, the gear on the first pressure plate is operated to make the extension plate move in the storage groove, and the total length of the first pressure plate, the extension plate and the second pressure plate can be quickly adjusted, so that it can provide clamping and fixing work for workpieces of different sizes, thereby improving its scope of application and flexibility of use. There is no need to manually disassemble and adjust the position of the hydraulic clamp or replace pressure plates of different lengths, which saves time and effort and has high practicality.

[0016] 2. In the utility model, by setting the gear and the non-return pawl, after the length of the extension plate is adjusted, the non-return pawl is operated to move toward the gear, so that the end of the non-return pawl abuts against the tooth groove of the gear, thereby achieving the purpose of limiting the rotation of the gear and fixing the length of the extension plate.

[0017] 3. In the utility model, by providing a dustproof sheet, the hydraulic clamp provides a dustproof function for the extension plate area in a processing environment through the dustproof sheet, thereby preventing processing debris from falling into the extension plate and affecting the subsequent length adjustment of the extension plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram in the utility model;

[0019] Figure 2 This is a schematic diagram of the partial connection structure of the first pressing plate and the second pressing plate in the utility model;

[0020] Figure 3It is a schematic diagram of the internal structure of the first pressing plate and the second pressing plate in the utility model from a top view;

[0021] Figure 4 It is a schematic diagram of the enlarged structure of point A in the utility model;

[0022] Figure 5 It is a schematic diagram of the internal structure of the sleeve in the utility model.

[0023] Legend:

[0024] 1. Mounting base; 2. Hydraulic cylinder; 3. Support member; 4. Articulated member; 5. First pressure plate; 6. Dustproof sheet; 7. Second pressure plate; 8. Extension plate; 9. Straight tooth groove; 10. Bottom plate; 11. Storage groove; 12. Limiting groove; 13. Limiting plate; 14. Adjusting mechanism; 1401. Gear; 1402. Check pawl; 1403. Central axis; 15. Rectangular opening; 16. Sleeve; 17. Spring; 18. Push rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1-5 A hydraulic clamp comprises a mounting base 1, a hydraulic cylinder 2, a hinged component 4 and a first pressing plate 5, a receiving groove 11 is provided at one end of the first pressing plate 5, limiting grooves 12 are provided on both sides of the inner wall of the receiving groove 11, the limiting groove 12 is internally slidably connected to a limiting plate 13, an extension plate 8 is installed outside the limiting plate 13, the other end of the extension plate 8 is connected to a second pressing plate 7, straight tooth grooves 9 are provided on both sides of the outer wall of the extension plate 8, rectangular openings 15 are provided on both sides of one end of the first pressing plate 5, and an adjusting mechanism 14 is provided inside the rectangular opening 15.

[0027] By adopting the above technical solution and setting the adjustment mechanism 14, it is convenient to operate the gear 1401 to cooperate with the straight tooth groove 9 according to the size of the workpiece, so as to quickly adjust the total length of the extension plate 8, the first pressure plate 5 and the second pressure plate 7, so that it can provide clamping and fixing work for workpieces of different sizes, thereby improving its scope of application and flexibility of use. There is no need to manually disassemble and adjust the position of the hydraulic clamp or replace pressure plates of different lengths, which saves time and effort and has high practicality.

[0028] Furthermore, the adjustment mechanism 14 includes a gear 1401 , a non-return pawl 1402 and a central axis 1403 . The central axis 1403 and the gear 1401 are arranged in a cross shape, and one end of the central axis 1403 is engaged with the inner wall of the rectangular opening 15 .

[0029] By adopting the above technical solution and setting the non-return pawl 1402 , it is easy to operate the non-return pawl 1402 to abut against the tooth groove of the gear 1401 , so as to limit the rotation of the gear 1401 , thereby completing the fixing work of the extension plate 8 .

[0030] Furthermore, the central axis 1403 and the rectangular opening 15 form a movable structure through the groove, the central axis 1403 and the gear 1401 are fixedly connected, and the outside of the gear 1401 is meshed with the straight tooth groove 9.

[0031] By adopting the above technical solution, through the meshing structure of the gear 1401 and the straight tooth groove 9, the operating gear 1401 can smoothly drive the extension plate 8 to adjust the length.

[0032] Furthermore, the non-return pawl 1402 and the first pressing plate 5 form a movable structure through the rotating shaft.

[0033] Furthermore, an oil inlet and outlet pipe is provided on the outside of the hydraulic cylinder 2, and the connection between the hydraulic cylinder 2 and the first pressure plate 5 forms a movable structure through a hinge component 4, so that when the hydraulic cylinder 2 is injected with oil, one end of the first pressure plate 5 can be smoothly driven to move up and down.

[0034] Furthermore, a support member 3 is installed between the first pressure plate 5 and the hydraulic cylinder 2. The support member 3 includes a hinge seat and a support rod. The support member 3 and the first pressure plate 5 are movably connected. Through the setting of the support member 3, the middle part of the first pressure plate 5 maintains a horizontal position, and its two ends move up and down driven by the hydraulic cylinder 2 to provide clamping and fixing work for the workpiece.

[0035] Furthermore, a dustproof sheet 6 is arranged between the second pressing plate 7 and the first pressing plate 5. The dustproof sheet 6 has an accordion structure. A base plate 10 is installed at the bottom of the second pressing plate 7. Through the setting of the dustproof sheet 6, it can provide a dustproof function for the extension plate 8 to prevent processing debris from falling into the extension plate 8 and affecting the subsequent length adjustment work of the extension plate 8.

[0036] Furthermore, a sleeve 16 is provided at the bottom of the base plate 10, a spring 17 is installed inside the sleeve 16, one end of the spring 17 is connected to a push rod 18, and the sleeve 16 is distributed in a matrix at the bottom of the base plate 10. The setting of the push rod 18 facilitates clamping and fixing of special-shaped workpieces.

[0037] Working principle: When in use, first install the hydraulic cylinder 2 around the equipment processing platform through the installation base 1, and connect the oil hose, then, according to the size of the workpiece, operate the gear 1401 on the first pressure plate 5 to move the extension plate 8 in the storage groove 11 of the first pressure plate 5, so as to adjust the total length of the extension plate 8, the first pressure plate 5 and the second pressure plate 7, so as to provide clamping and fixing work for workpieces of different sizes. Once again, when the length adjustment of the extension plate 8 is completed, the non-return pawl 1402 is operated to move toward the gear 1401, so that the end of the non-return pawl 1402 abuts against the tooth groove of the gear 1401, so as to limit the rotation of the gear 1401, so that the length of the extension plate 8 is fixed, and through the sleeve 1 on the bottom plate 10 6. The arrangement of the spring 17 and the push rod 18 facilitates the clamping and fixing of the special-shaped workpiece. Finally, through the arrangement of the dustproof sheet 6, the hydraulic clamp provides a dustproof function for the extension plate 8 area through the dustproof sheet 6 in the processing environment, so as to prevent processing debris from falling into the extension plate 8 and affecting the subsequent length adjustment of the extension plate 8 (it should be noted that the models and / or sizes of the various components of the utility model should be understood as matching and cooperating with each other, and are all implementation methods known to ordinary technicians in this field. In addition, the tightness of the cooperation of the various components of the utility model is known to ordinary technicians in this field, and they are all parts that ordinary technicians in this field can use the methods known to ordinary technicians in this field in the prior art to implement as needed).

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic clamp, comprising a mounting base (1), a hydraulic cylinder (2), a hinge component (4) and a first pressing plate (5), characterized in that: A receiving groove (11) is provided at one end of the first pressing plate (5), and limiting grooves (12) are provided on both sides of the inner wall of the storing groove (11), and the inner part of the limiting groove (12) is slidably connected to a limiting plate (13), and an extension plate (8) is installed on the outside of the limiting plate (13), and the other end of the extension plate (8) is connected to a second pressing plate (7), and straight tooth grooves (9) are provided on both sides of the outer wall of the extension plate (8), and rectangular openings (15) are provided on both sides of one end of the first pressing plate (5), and an adjustment mechanism (14) is provided inside the rectangular opening (15).

2. A hydraulic clamp according to claim 1, characterized in that: The adjustment mechanism (14) comprises a gear (1401), a non-return pawl (1402) and a central shaft (1403); the central shaft (1403) and the gear (1401) are arranged in a cross shape; one end of the central shaft (1403) is engaged with the inner wall of the rectangular opening (15).

3. A hydraulic clamp according to claim 2, characterized in that: The central shaft (1403) and the rectangular opening (15) form a movable structure via a groove, the central shaft (1403) and the gear (1401) are fixedly connected, and the outside of the gear (1401) is meshed with the straight tooth groove (9).

4. A hydraulic clamp according to claim 2, characterized in that: The non-return pawl (1402) and the first pressing plate (5) form a movable structure via a rotating shaft.

5. A hydraulic clamp according to claim 1, characterized in that: The outside of the hydraulic cylinder (2) is provided with an oil inlet and outlet pipe, and the connection between the hydraulic cylinder (2) and the first pressing plate (5) forms a movable structure through a hinge component (4).

6. A hydraulic clamp according to claim 1, characterized in that: A support member (3) is installed between the first pressing plate (5) and the hydraulic cylinder (2); the support member (3) comprises an articulated seat and a support rod; and the support member (3) and the first pressing plate (5) are movably connected.

7. A hydraulic clamp according to claim 1, characterized in that: A dustproof sheet (6) is arranged between the second pressing plate (7) and the first pressing plate (5), and the dustproof sheet (6) is an accordion-type structure. A base plate (10) is installed at the bottom of the second pressing plate (7).

8. A hydraulic clamp according to claim 7, characterized in that: A sleeve (16) is provided at the bottom of the base plate (10), a spring (17) is installed inside the sleeve (16), one end of the spring (17) is connected to a push rod (18), and the sleeves (16) are distributed in a matrix shape at the bottom of the base plate (10).

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