Clamp for machining

Abstract

The utility model belongs to the technical field of clamps, and particularly relates to a clamp for machining, which comprises a mounting support, a power component arranged on the mounting support, and a left flexible clamping mechanism and a right flexible clamping mechanism which are arranged on a guide component arranged on the mounting support, the left flexible clamping mechanism and the right flexible clamping mechanism are the same in structure and size and are arranged in a bilateral symmetry mode, the left flexible clamping mechanism and the right flexible clamping mechanism which are arranged in a bilateral symmetry mode are arranged, self-adaptive adjustment can be carried out according to the shape and the size of a workpiece, the universality of the clamp is improved, and the clamping efficiency is improved. The V-shaped clamping head is connected with the connecting rod through the spring, so that the V-shaped clamping head has flexible clamping capacity, clamping force can be buffered, damage to the surface of a workpiece is avoided, the damping device on the rotating shaft can enable the V-shaped clamping head to stably keep a clamping angle when clamping workpieces in different shapes, and the clamping stability of the clamp to irregular workpieces is enhanced.

Description

Technical Field

[0001] This utility model belongs to the field of fixture technology, specifically relating to a fixture for machining. Background Technology

[0002] In machining processes, fixtures are crucial devices for clamping workpieces, and their performance directly affects machining accuracy and production efficiency. Traditional fixtures are often structurally rigid, making them less adaptable to workpieces of different shapes and sizes. They can easily damage the workpiece surface during clamping and are difficult to stably hold irregularly shaped workpieces. With the continuous development of the machining industry, higher demands are being placed on the flexibility, versatility, and workpiece protection performance of fixtures. Utility Model Content

[0003] To address the problems mentioned in the background section, this invention provides a machining fixture that solves the problems of poor adaptability to workpieces of different shapes and easy damage to workpiece surfaces in existing fixtures, thereby achieving stable and flexible clamping of various workpieces.

[0004] This machining fixture includes a mounting support, a power assembly mounted on the mounting support, and a guide assembly mounted on the mounting support with a left flexible clamping mechanism and a right flexible clamping mechanism. The left and right flexible clamping mechanisms are the same size and are symmetrically arranged.

[0005] The left flexible clamping mechanism includes a pair of support plates fixed on the guide assembly. The two support plates are connected by a lower limit link and an upper limit link. A pair of V-shaped clamps are movably arranged between the two support plates through a rotating shaft. The tail ends of the two V-shaped clamps are connected by a link. The upper limit link and the link are connected by a pair of springs.

[0006] The guide assembly includes a pair of slide rails fixed to the mounting bracket, and a pair of guide blocks for fixing the support plate are provided on the slide rails.

[0007] The power assembly includes a cylinder fixed on a mounting bracket. The piston rod of the cylinder has a left pull rod and a right pull rod movably mounted on its top end. Both the left and right pull rods are movably connected to a pair of support plates via a rotating rod.

[0008] The V-shaped chuck is equipped with a rubber anti-slip pad on its clamping surface to increase the friction on the workpiece and prevent the workpiece from sliding during clamping.

[0009] Limiting blocks are provided at both ends of the slide rail to limit the movement range of the guide block on the slide rail and prevent the guide block from detaching from the slide rail.

[0010] The rotating shaft is equipped with a damping device, which provides a certain resistance when the V-shaped chuck rotates, making it easier to maintain the clamping angle stably when clamping workpieces of different shapes.

[0011] The damping device is a damping sleeve sleeved on the rotating shaft. The outer wall of the damping sleeve is tightly fitted with the inner wall of the support plate, and damping is provided by friction.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention, by setting up symmetrical left and right flexible clamping mechanisms, can adaptively adjust according to the shape and size of the workpiece, improving the versatility of the fixture. The V-shaped chuck is connected to the connecting rod by a spring, giving the V-shaped chuck flexible clamping capability, which can buffer the clamping force and avoid damage to the workpiece surface. The damping device on the rotating shaft can keep the V-shaped chuck stable at the clamping angle when clamping workpieces of different shapes, enhancing the clamping stability of the fixture for irregular workpieces. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the left flexible clamping mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the left flexible clamping mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the power mechanism and guide mechanism of this utility model;

[0019] In the picture:

[0020] Install the support;

[0021] Power unit; 21. Cylinder; 22. Left tie rod; 23. Right tie rod; 24. Rotary rod;

[0022] Guide components; 31. Slide rail; 32. Guide block;

[0023] Left flexible clamping mechanism; 41. Support plate; 42. Lower limit link; 43. Upper limit link; 44. Rotating shaft; 45. V-shaped chuck; 46. Linkage; 47. Spring;

[0024] Right flexible clamping mechanism. Detailed Implementation

[0025] 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. Example

[0026] like Figure 1-4 As shown;

[0027] A machining fixture, with mounting support 1.

[0028] This implementation plan addresses the technical problems existing in the prior art, as disclosed in the background section above: "In the machining process, fixtures are important devices for clamping workpieces, and their performance directly affects machining accuracy and production efficiency. Traditional fixtures are often structurally rigid, have poor adaptability to workpieces of different shapes and sizes, are prone to damaging the workpiece surface during clamping, and are difficult to stably fix some irregularly shaped workpieces. With the continuous development of the machining industry, higher requirements are placed on the flexibility, versatility, and workpiece protection performance of fixtures." In practical terms, this problem is clearly a real and difficult-to-solve issue. Therefore, to solve this technical problem, a machining fixture is provided based on this existing technology.

[0029] like Figure 1-4 As shown in the figure;

[0030] In conjunction with the above, it also includes a power assembly 2 installed on the mounting support 1, and a guide assembly 3 installed on the mounting support 1 with a left flexible clamping mechanism 4 and a right flexible clamping mechanism 5. The left flexible clamping mechanism 4 and the right flexible clamping mechanism 5 are the same size and are symmetrically arranged on the left and right sides.

[0031] The left flexible clamping mechanism 4 includes a pair of support plates 41 fixed on the guide assembly 3. The two support plates 41 are connected by a lower limit link 42 and an upper limit link 43. A pair of V-shaped clamps 45 are movably arranged between the two support plates 41 through a rotating shaft 44. The tail ends of the two V-shaped clamps 45 are connected by a link 46. The upper limit link 43 and the link 46 are connected by a pair of springs 47.

[0032] The guide assembly 3 includes a pair of slide rails 31 fixed on the mounting bracket 1, and a pair of guide blocks 32 for fixing the support plate 41 are provided on the slide rails 31.

[0033] The power assembly 2 includes a cylinder 21 fixed on the mounting bracket 1. The piston rod of the cylinder 21 is movably provided with a left pull rod 22 and a right pull rod 23, and both the left pull rod 22 and the right pull rod 23 are movably connected to a pair of support plates 41 through a rotating rod 24.

[0034] The V-shaped chuck 45 has a rubber anti-slip pad on its clamping surface to increase the friction on the workpiece and prevent the workpiece from sliding during clamping.

[0035] Limiting blocks are provided at both ends of the slide rail 31 to limit the movement range of the guide block 32 on the slide rail 31 and prevent the guide block 32 from detaching from the slide rail 31.

[0036] A damping device is provided on the rotating shaft 44, so that the V-shaped chuck 45 has a certain resistance when rotating, which makes it easy to maintain the clamping angle stably when clamping workpieces of different shapes.

[0037] The damping device is a damping sleeve fitted on the rotating shaft 44. The outer wall of the damping sleeve is tightly fitted with the inner wall of the support plate 41, and damping is provided by friction.

[0038] Installation and debugging:

[0039] Fix the mounting bracket 1 to the workbench of a suitable processing equipment, ensuring a secure installation.

[0040] Install the guide assembly 3, fix a pair of slide rails 31 on the mounting support 1, and install the guide block 32 on the slide rails 31.

[0041] Install the left flexible clamping mechanism 4 and the right flexible clamping mechanism 5, fix a pair of support plates 41 on the corresponding guide blocks 32 respectively, connect the two support plates 41 through the lower limit link 42 and the upper limit link 43, install the rotating shaft 44 between the support plates 41, and install a pair of V-shaped chucks 45 on the rotating shaft 44. Connect the tail ends of the two V-shaped chucks 45 through the link 46, and finally connect the spring 47 between the upper limit link 43 and the link 46.

[0042] Install the power assembly 2, fix the cylinder 21 on the mounting bracket 1, movably connect the left tie rod 22 and the right tie rod 23 to the top of the piston rod of the cylinder 21, and connect the left tie rod 22 and the right tie rod 23 to the corresponding support plate 41 through the rotating rod 24.

[0043] Adjust the movement of each component, check the rotation flexibility of the V-shaped chuck 45, the smoothness of the movement of the guide component 3, and the driving effect of the power component 2 to ensure that each component can work normally.

[0044] Usage process:

[0045] According to the shape and size of the workpiece to be processed, the cylinder 21 is activated, and the extension and retraction of the piston rod drives the left pull rod 22 and the right pull rod 23 to move, thereby pushing the left flexible clamping mechanism 4 and the right flexible clamping mechanism 5 to move towards or away from each other along the slide rail 31 to adjust to a suitable clamping position.

[0046] The workpiece is placed between the V-clamps 45. The V-clamps 45 rotate via the pivot 44 according to the shape of the workpiece, while the spring 47 provides a cushioning force, ensuring that the V-clamps 45 fit tightly against the workpiece surface. The rubber anti-slip pads on the clamping surfaces of the V-clamps 45 effectively prevent the workpiece from slipping.

[0047] During the processing, if an irregularly shaped workpiece is encountered, the V-shaped chuck 45, under the action of the damping device on the rotating shaft 44, can stably maintain the clamping angle, ensuring the stability of the workpiece during the processing.

[0048] After processing is completed, cylinder 21 reverses its direction, causing the left flexible clamping mechanism 4 and the right flexible clamping mechanism 5 to separate and remove the processed workpiece.

[0049] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A jig for machining, comprising a mounting support (1), characterised in that: Also include the power component (2) set on the mounting support (1), and the guide component (3) set on the mounting support (1) is provided with left flexible clamping mechanism (4) and right flexible clamping mechanism (5), the left flexible clamping mechanism (4) and right flexible clamping mechanism (5) structure size are same, and both left and right symmetrically arranged; The left flexible clamping mechanism (4) includes a pair of support plates (41) fixed on the guide component (3), and the two support plates (41) are connected by lower limit link (42) and upper limit link (43), and a pair of V-shaped chuck (45) is movably arranged between the two support plates (41) through the rotating shaft (44), and the tail ends of the two V-shaped chucks (45) are connected by the connecting rod (46), and the upper limit link (43) and the connecting rod (46) are connected by a pair of springs (47).

2. The fixture of claim 1 wherein: The guide component (3) includes a pair of slide rails (31) fixed on the mounting support (1), and a pair of guide blocks (32) for fixing the support plate (41) are arranged on the slide rail (31).

3. The fixture of claim 1 wherein: The power component (2) includes a cylinder (21) fixed on the mounting support (1), and the piston rod top end of the cylinder (21) movably sets left pull rod (22) and right pull rod (23), and left pull rod (22) and right pull rod (23) are movably connected with a pair of support plates (41) through rotating rod (24).

4. The fixture of claim 1 wherein: The clamping surface of the V-shaped chuck (45) is provided with rubber non-slip pad to increase the friction force of the workpiece, and prevent the workpiece from sliding during clamping.

5. The fixture of claim 2 wherein: The both ends of the slide rail (31) are provided with limit block, which is used for limiting the movement range of the guide block (32) on the slide rail (31), to avoid the guide block (32) from disengaging the slide rail (31).

6. The fixture of claim 1 wherein: The rotating shaft (44) is provided with a damping device, so that the V-shaped chuck (45) has a certain resistance when rotating, which is convenient for stable holding of the clamping angle when clamping different shaped workpieces.

7. A jig for machining according to claim 6, wherein: The damping device is a damping sleeve sleeved on the rotating shaft (44), and the outer wall of the damping sleeve is tightly fitted with the inner wall of the support plate (41), and the damping is provided by friction force.

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