Floating butt clamp device

Abstract

The utility model relates to a clamping device, in particular to a floating butt clamping device, which comprises a hydraulic cylinder and further comprises a base arranged on the hydraulic cylinder. The lifting connecting rod is movably arranged on the base and is connected with the hydraulic cylinder; the two driving connecting rods are symmetrically arranged at the two ends of the lifting connecting rod, and the driving connecting rods are movably inserted into the lifting holes of the base; the two pressing rods are movably arranged in the pressing hole of the base, the number of the pressing rods is two, and pressing waist grooves are obliquely formed in the pressing rods; the second pressing shaft is movably arranged in the pressing waist groove and is connected with the driving connecting rod; the clamping rods are fixed to the pressing rod through screws, the two clamping rods are symmetrically arranged, and the screws are used for adjusting the angles of the clamping rods; the hydraulic cylinder is used for driving the pressing rod through the lifting connecting rod to drive the second pressing shaft and the pressing waist groove to push the clamping rod to clamp a workpiece. The positions of the clamping jaws of the floating butt-clamping device can be adjusted at will, interference is effectively avoided, clamping force is small, and a workpiece is not prone to being crushed.

Description

Technical Field

[0001] The utility model relates to a clamping device, in particular to a floating clamping device. Background Art

[0002] Conventional hydraulic clamping cylinders such as CN211728431U disclose a bidirectional hydraulic pliers, which include a hydraulic cylinder, a cylinder body and a piston rod; a rotating seat is provided on the top of the cylinder body, and the rotating seat is symmetrically located on both sides of the piston rod; a driving shaft is provided on the top of the piston rod; a left clamp, and the connecting end of the left clamp is hinged on the driving shaft; a left hinge plate, one end of the left hinge plate is hinged on one of the rotating seats, and the other end of the left hinge plate is hinged on the middle of the left clamp; a right clamp, and the connecting end of the right clamp is hinged on the driving shaft; a right hinge plate, one end of the right hinge plate is hinged on another rotating seat, and the other end of the right hinge plate is hinged on the middle of the right clamp; the clamping end of the left clamp is arranged opposite to the clamping end of the right clamp, and the hydraulic cylinder is used to drive the left clamp and the right clamp to clamp or release the workpiece. The hydraulic cylinder of this structure has a large clamping force, is easy to clamp the workpiece, and has requirements for the installation position, and is easy to interfere when multiple clamping hydraulic cylinders are used. Utility Model Content

[0003] In order to solve the above problems of easy crushing of workpieces and easy interference, the utility model provides a floating clamping device, and the specific technical solution is as follows:

[0004] A floating clamping device includes a hydraulic cylinder, and also includes: a base, which is arranged on the hydraulic cylinder; a lifting connecting rod, which is movably arranged on the base and connected to the hydraulic cylinder; a driving connecting rod, which is arranged at both ends of the lifting connecting rod, and two are symmetrically provided, and the driving connecting rod is also movably inserted into the lifting hole of the base; a clamping rod, which is movably arranged in the clamping hole of the base, and two are symmetrically provided, and a clamping waist groove is obliquely provided on the clamping rod; a second clamping shaft, which is movably arranged in the clamping waist groove and connected to the driving connecting rod; and a clamping rod, which is fixed to the clamping rod by screws, and two are symmetrically provided, and the screws are used to adjust the angle of the clamping rod; wherein, the hydraulic cylinder is used to drive the clamping rod through the lifting connecting rod to drive the second clamping shaft and the clamping waist groove to push the clamping rod to clamp the workpiece.

[0005] Preferably, the base is further provided with a second guide groove, and both ends of the second clamping shaft are movably inserted into the second guide groove.

[0006] Preferably, the clamping rod is provided with a mounting groove, and the driving connecting rod is movably inserted into the mounting groove.

[0007] Preferably, it also includes: a bottom plate, which is arranged between the base and the hydraulic cylinder.

[0008] Preferably, an oil passage communicating with the hydraulic cylinder is provided on the base plate.

[0009] Preferably, it also includes: a connecting rod, which is arranged between the driving connecting rod and the hydraulic cylinder.

[0010] Preferably, it also includes: a first clamping shaft, which is arranged between the driving connecting rod and the hydraulic cylinder.

[0011] Furthermore, a waist-shaped first guide groove is provided on the base, and the first clamping shaft is movably inserted into the first guide groove.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The clamping claws of the floating clamping device provided by the utility model can adjust the position arbitrarily, effectively avoiding interference, and the clamping force is small, so the workpiece is not easily crushed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of this application;

[0015] Figure 2 is a cross-sectional view of the present application;

[0016] Figure 3 is a top view of the present application;

[0017] Figure 4 This is a schematic diagram of the structure after the base is hidden;

[0018] Figure 5 It is a schematic diagram of the structure of the base. DETAILED DESCRIPTION

[0019] The utility model is now further described with reference to the accompanying drawings.

[0020] like Figures 1 to 5As shown, a floating clamping device includes a hydraulic cylinder 3, a base 2, a lifting connecting rod 5, a driving connecting rod 42, a clamping rod 7, a first clamping shaft 61, a second clamping shaft 62, a clamping rod 8 and a base plate 1. The base plate 1 is connected to the base 2 and the hydraulic cylinder 3 respectively, and the hydraulic cylinder 3 is located at the center of the base 1. The base 2 is provided with a lifting groove 24, a first guide groove 21, a clamping hole 23, a second guide groove 22 and a lifting hole 25. The lifting groove 24 is arranged at the bottom of the base 2 and communicates with the first guide groove 21. The first guide groove 21 is located on the center line of the base 2. Two clamping holes 23 are symmetrically arranged and are located at the top of the base 2. Two lifting holes 25 are symmetrically arranged and are respectively communicated with the lifting groove 24 and the clamping hole 23. The clamping hole 23 is provided with a second guide groove 22. The piston rod of the hydraulic cylinder 3 is provided with a connecting rod 41, which is connected to the lifting connecting rod 5 through the first clamping shaft 61. The lifting connecting rod 5 is movably located in the lifting groove 24, and the first clamping shaft 61 is also movably inserted in the first guide groove 21. The first guide groove 21 and the second guide groove 22 are both waist-shaped grooves arranged vertically. The first clamping shaft 61 and the first guide groove 21 are used to guide the connecting rod 41 so that it can be lifted and lowered in the vertical direction, thereby reducing the radial force of the hydraulic cylinder 3. One end of the driving connecting rod 42 is symmetrically installed at both ends of the lifting connecting rod 5 through the connecting shaft, and is movably inserted in the lifting hole 25. The lifting hole 25 guides the lifting connecting rod 5 and bears the clamping force. The other end of the driving connecting rod 42 is connected to the second clamping shaft 62, which is also movably inserted in the second guide groove 22. The second guide groove 22 guides the second clamping shaft 62 and can bear radial force. The clamping rod 7 is movably inserted into the clamping hole 23 and is symmetrically arranged. The clamping rod 7 is provided with a clamping waist groove 72 and a mounting groove 71. The mounting groove 71 is communicated with the clamping waist groove 72. The clamping waist groove 72 is tilted. The second clamping shaft 62 is movably inserted into the clamping waist groove 72. The end of the driving connecting rod 42 is movably inserted into the mounting groove 71. The overall structure is more compact and stable. Two clamping rods 8 are provided. The clamping rods 8 are fixed to the ends of the clamping rods 7 by screws and are symmetrically arranged. The screws are used to adjust the angle of the clamping rods 8, so as to avoid other clamping mechanisms and avoid interference. The hydraulic cylinder 3 is used to drive the clamping rod 7 through the lifting connecting rod 5 to drive the second clamping shaft 62 and the clamping waist groove 72 to push the clamping rod 8 to clamp the workpiece.

[0021] The lifting hole 25 and the second guide groove 22 bear radial force together, greatly reducing the deformation of the driving connecting rod 42, improving the overall rigidity, and enabling the driving connecting rod 42 to ensure that the clamping rod 8 symmetrically clamps the workpiece and keeps the position of the clamping center unchanged.

[0022] The bottom plate 1 is easy to install, and an oil passage communicating with the hydraulic cylinder 3 is provided on the bottom plate 1, so as to facilitate centralized oil supply, make the overall structure of the clamp more compact, and reduce pipelines.

[0023] When clamping the workpiece, the hydraulic cylinder 3 drives the lifting connecting rod 5 to rise through the connecting rod 41, and the lifting connecting rod 5 pushes the driving connecting rod 42 to rise, and the driving connecting rod 42 drives the second clamping shaft 62 to move above, and the second clamping shaft 62 drives the clamping rod 7 to move toward each other through the clamping waist groove 72, so that the clamping rod 8 clamps the workpiece and makes the workpiece located on the symmetrical center line. Since the hydraulic cylinder 3 is indirectly clamped, the clamping force is reduced and it is not easy to damage the surface of the workpiece. The floating clamping structure can effectively control the size of the clamping force, and can apply force on both sides of the workpiece at the same time to prevent the workpiece from being subjected to additional force.

[0024] When the workpiece is released, the hydraulic cylinder 3 drives the lifting connecting rod 5 to descend, thereby driving the second clamping shaft 62 to push the clamping waist groove 72 in the opposite direction, so that the clamping rod 8 releases the workpiece.

[0025] It is mainly used for floating clamping of workpieces that have been completely fixed. By adjusting the angle of the clamping rod 8, multiple mechanisms will not interfere with each other when used simultaneously.

[0026] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. A floating clamping device, comprising a hydraulic cylinder (3), characterized in that: Also includes: A base (2) is arranged on the hydraulic cylinder (3); A lifting connecting rod (5) is movably arranged on the base (2) and connected to the hydraulic cylinder (3); A driving connecting rod (42) is arranged at both ends of the lifting connecting rod (5), and two driving connecting rods (42) are symmetrically arranged. The driving connecting rod (42) is also movably inserted into the lifting hole (25) of the base (2); A clamping rod (7) is movably arranged in the clamping hole (23) of the base (2), and two of them are symmetrically arranged, and a clamping waist groove (72) is obliquely arranged on the clamping rod (7); A second clamping shaft (62) is movably disposed in the clamping waist groove (72) and connected to the driving connecting rod (42); and A clamping rod (8) is fixed to the clamping rod (7) by means of screws, and two of the clamping rods are symmetrically provided, wherein the screws are used to adjust the angle of the clamping rod (8); The hydraulic cylinder (3) is used to drive the clamping rod (7) through the lifting connecting rod (5) to drive the second clamping shaft (62) and the clamping waist groove (72) to push the clamping rod (8) to clamp the workpiece.

2. A floating clamping device according to claim 1, characterized in that: The base (2) is also provided with a second guide groove (22), and both ends of the second clamping shaft (62) are movably inserted into the second guide groove (22).

3. A floating clamping device according to claim 1, characterized in that: The pressing rod (7) is provided with a mounting groove (71), and the driving connecting rod (42) is movably inserted into the mounting groove (71).

4. A floating clamping device according to claim 1, characterized in that: Also includes: The bottom plate (1) is arranged between the base (2) and the hydraulic cylinder (3).

5. A floating clamping device according to claim 4, characterized in that: The bottom plate (1) is provided with an oil passage communicating with the hydraulic cylinder (3).

6. A floating clamping device according to claim 1, characterized in that: Also includes: A connecting rod (41) is arranged between the driving connecting rod (42) and the hydraulic cylinder (3).

7. A floating clamping device according to any one of claims 1 to 6, characterized in that: Also includes: The first clamping shaft (61) is arranged between the driving connecting rod (42) and the hydraulic cylinder (3).

8. A floating clamping device according to claim 7, characterized in that: A waist-shaped first guide groove (21) is provided on the base (2), and the first pressing shaft (61) is movably inserted into the first guide groove (21).

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