Guide sleeve machining clamp

Abstract

The utility model discloses a guide sleeve processing clamp, which relates to the technical field of guide sleeve processing, and comprises a base, vertical frames are symmetrically and fixedly arranged at the top of the base, a supporting disc is fixedly arranged at the top of each vertical frame, a central cylinder is fixedly arranged at the center of the top of each supporting disc, and an adjusting stud is screwed into the top of each vertical frame along the vertical direction in a threaded manner. And a composite clamping structure for clamping the inner wall or the end part of the guide sleeve is arranged in the central cylinder. The composite clamping assemblies are arranged on the top of the inner cavity of the center cylinder in a circular array mode, the composite clamping assemblies can clamp and fix the end face of the tail end of the guide sleeve when the guide sleeve is machined in the axis direction, and the composite clamping assemblies can clamp the interior of the guide sleeve when the outer wall of the guide sleeve is machined. The clamp for machining the oil cylinder guide sleeve can thoroughly solve the problems that a traditional clamp for machining the oil cylinder guide sleeve can only clamp the inner side or the outer side of the oil cylinder guide sleeve, axial positioning of the oil cylinder guide sleeve is lacked, and the oil cylinder guide sleeve is prone to shifting in the axial direction during axial machining.

Description

Technical Field

[0001] The utility model relates to the technical field of guide sleeve processing, in particular to a guide sleeve processing fixture. Background Art

[0002] Cylinder guide sleeve is a mechanical part commonly found in hydraulic systems, used to reduce friction and wear of the piston in the cylinder. It is usually made of metal, with a round shape and a smooth surface inlaid inside for the piston to move in. Cylinder guide sleeve can effectively reduce leakage in hydraulic systems and improve the stability and life of the piston. The outer wall and end face of the cylinder guide sleeve need to be processed.

[0003] In the prior art, the general clamp for machining the cylinder guide sleeve can only clamp the inner side or the outer side of the cylinder guide sleeve, has poor applicability, and lacks axial positioning of the cylinder guide sleeve. When the cylinder guide sleeve is axially machined, it is easy to move in the axial direction, thereby affecting the machining of the cylinder guide sleeve. Summary of the invention

[0004] The utility model aims to solve the problem that the general cylinder guide sleeve machining fixture in the prior art can only clamp the inner side or the outer side of the cylinder guide sleeve, has poor applicability, lacks axial positioning of the cylinder guide sleeve, and the cylinder guide sleeve is easy to move in the axial direction during axial machining, thereby affecting the machining of the cylinder guide sleeve, and proposes a guide sleeve machining fixture.

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

[0006] A guide sleeve processing fixture comprises a base, wherein the bottom of the base is symmetrically provided with mounting holes, a vertical frame is symmetrically fixedly provided on the top of the base, a support plate is fixedly provided on the top of the vertical frame, a center tube is fixedly provided at the center of the top of the support plate, an adjustment stud is screwed into the top of the vertical frame along the vertical direction, and a composite clamping structure for clamping the inner wall or the end of the guide sleeve is arranged inside the center tube.

[0007] Optionally, the composite clamping structure comprises a conical platform, an auxiliary column, and a clamping block; a central screw is threaded into the bottom of the central tube, and a conical platform is fixedly arranged on the top of the central screw.

[0008] Optionally, a rocking wheel is fixedly arranged at the bottom of the central screw, and a clamping block is arranged in a circular array inside the central tube, and the clamping block is movably inserted into the inner wall of the central tube.

[0009] Optionally, a mounting block is fixedly arranged on the top of the clamping block, and the mounting block is fixedly connected to one end of the connecting spring.

[0010] Optionally, the other end of the connecting spring is fixedly connected to the inner wall of the central tube, and the clamping block is provided with an inclined surface on the side surface of one end of the outer wall of the central tube.

[0011] Optionally, an inner arc block is fixedly provided on the top of the clamping block, the outer side surface of the inner arc block is set as an arc surface, the inner side surface of the clamping block is fixedly connected to one end of the auxiliary column, and the other end of the auxiliary column contacts the outer wall of the conical platform.

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

[0013] 1. The utility model has a composite clamping assembly in a circular array at the top of the inner cavity of the center tube. The composite clamping assembly can clamp and fix the end face of the guide sleeve end when the guide sleeve is processed in the axial direction, and can clamp the inside of the guide sleeve when the outer wall of the guide sleeve is processed. This can completely solve the problem that the traditional clamp for processing the cylinder guide sleeve can only clamp the inner side or the outer side of the cylinder guide sleeve, has poor applicability, lacks axial positioning of the cylinder guide sleeve, and the cylinder guide sleeve is easy to move in the axial direction when it is processed in the axial direction.

[0014] 2. The utility model has adjusting studs symmetrically screwed into the supporting disk. The distance between the bottom of the guide sleeve to be processed and the supporting disk can be adjusted by controlling the length of the adjusting studs extending into the supporting disk. Finally, the composite clamping assembly can be controlled to clamp the inner wall or end face of the guide sleeve. The practicality of the clamp is greatly improved, and guide sleeves with different inner diameters and different lengths can be clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 for Figure 1 Schematic diagram of the top view structure.

[0017] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at A.

[0018] In the figure: 1, inner arc block; 2, inclined surface; 3, adjustment stud; 4, support plate; 5, vertical frame; 6, base; 61, mounting hole; 7, center tube; 8, conical table; 81, center screw; 810, rocker; 9, auxiliary column; 10, mounting block; 11, connecting spring; 12, clamping block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] Reference Figure 1-3 A guide sleeve processing fixture includes a base 6, a mounting hole 61 is symmetrically opened at the bottom of the base 6, a vertical frame 5 is symmetrically fixedly arranged on the top of the base 6, a support plate 4 is fixedly arranged on the top of the vertical frame 5, a center tube 7 is fixedly arranged at the center of the top of the support plate 4, an adjusting stud 3 is screwed into the top of the vertical frame 5 along the vertical direction, and the top of the adjusting stud 3 is set to a smooth surface to avoid damage to the bottom end surface of the guide sleeve when the adjusting stud 3 supports the bottom of the guide sleeve.

[0022] A composite clamping structure for clamping the inner wall or the end of the guide sleeve is arranged inside the center tube 7. The composite clamping structure includes a conical platform 8, an auxiliary column 9, and a clamping block 12. A center screw 81 is threaded into the bottom of the center tube 7, a conical platform 8 is fixedly arranged on the top of the center screw 81, and a rocker 810 is fixedly arranged on the bottom of the center screw 81.

[0023] There are clamping blocks 12 in a circular array inside the central tube 7, and the clamping blocks 12 are movably inserted into the inner wall of the central tube 7. A mounting block 10 is fixedly arranged on the top of the clamping block 12, and the mounting block 10 is fixedly connected to one end of a connecting spring 11, and the other end of the connecting spring 11 is fixedly connected to the inner wall of the central tube 7. The clamping block 12 is provided with an inclined surface 2 on the side of one end of the outer wall of the central tube 7, and an inner arc block 1 is fixedly arranged on the top of the clamping block 12, and the outer side surface of the inner arc block 1 is arranged to be an arc surface. The inner side surface of the clamping block 12 is fixedly connected to one end of an auxiliary column 9, and the other end of the auxiliary column 9 contacts the outer wall of the conical platform 8.

[0024] The specific implementation steps and principles of the utility model are as follows:

[0025] According to the actual length of the guide sleeve to be processed and the clamping requirements of the guide sleeve (the inner wall of the guide sleeve needs to be clamped or the end face needs to be clamped), an adjustment stud 3 of appropriate length is screwed into the support plate 4, and finally the rocker 810 is rotated. The rocker 810 drives the center screw 81 to be screwed into the support plate 4, and the conical table 8 moves up. The conical table 8 pushes the three groups of clamping blocks 12 out from the outer wall of the center tube 7 through the auxiliary column 9.

[0026] When the clamping requirement of the guide sleeve is to clamp the end face of the guide sleeve, an adjustment stud 3 of appropriate length is screwed into the support plate 4, and the rocker 810 is rotated, and the inclined surface 2 of the clamping block 12 extends from the inner wall of the center tube 7, and the inclined surface 2 contacts the end face of the guide sleeve.

[0027] When the clamping requirement of the guide sleeve is to clamp the inner wall of the guide sleeve, an adjustment stud 3 of appropriate length is screwed into the support plate 4, and the rocker 810 is rotated. The inner arc block 1 at the top of the clamping block 12 extends from the inner wall of the center tube 7, and the inner arc block 1 contacts the inner wall of the guide sleeve.

[0028] The above 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 substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A guide sleeve machining fixture, comprising a base (6), characterized in that: The bottom of the base (6) is symmetrically provided with mounting holes (61); the top of the base (6) is symmetrically fixed with a vertical frame (5); the top of the vertical frame (5) is fixedly provided with a support plate (4); a center tube (7) is fixedly provided at the center of the top of the support plate (4); an adjustment stud (3) is screwed into the top of the vertical frame (5) along the vertical direction; a composite clamping structure for clamping the inner wall of the guide sleeve or the end thereof is provided inside the center tube (7); the composite clamping structure comprises a conical platform (8), an auxiliary column (9), and a clamping block (12); a center screw (81) is screwed into the bottom of the center tube (7); and a conical platform (8) is fixedly provided on the top of the center screw (81).

2. A guide sleeve processing fixture according to claim 1, characterized in that: A rocking wheel (810) is fixedly arranged at the bottom of the central screw rod (81), and a circular array of clamping blocks (12) is arranged inside the central tube (7), and the clamping blocks (12) are movably inserted into the inner wall of the central tube (7).

3. A guide sleeve processing fixture according to claim 2, characterized in that: A mounting block (10) is fixedly arranged on the top of the clamping block (12), and the mounting block (10) is fixedly connected to one end of a connecting spring (11).

4. A guide sleeve processing fixture according to claim 3, characterized in that: The other end of the connecting spring (11) is fixedly connected to the inner wall of the central tube (7), and the clamping block (12) is provided with an inclined surface (2) on the side surface of one end of the outer wall of the central tube (7).

5. A guide sleeve machining fixture according to claim 4, characterized in that: An inner arc block (1) is fixedly arranged on the top of the clamping block (12), and the outer side surface of the inner arc block (1) is arranged to be an arc-shaped surface. The inner side surface of the clamping block (12) is fixedly connected to one end of the auxiliary column (9), and the other end of the auxiliary column (9) is in contact with the outer wall of the conical platform (8).

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