CN218927056U

CN218927056U - Eccentric fixture for square valve bank

Info

Publication number: CN218927056U
Application number: CN202223167784.6U
Authority: CN
Inventors: 郭旭
Original assignee: Fitok Inc
Current assignee: Fitok Inc
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-04-28
Anticipated expiration: 2032-11-28

Abstract

The utility model provides a square valve group eccentric clamp which comprises a clamp body, a wedge-shaped pressing block and a waist-shaped groove adjusting block, wherein the wedge-shaped eccentric groove is formed in the clamp body, the wedge-shaped pressing block is arranged on one side of an inclined plane of the wedge-shaped eccentric groove, the waist-shaped groove adjusting block is arranged at the end part of the wedge-shaped eccentric groove, and the waist-shaped groove adjusting block can axially move in the wedge-shaped eccentric groove. The square valve group is only required to lean against the positioning surface of the clamp body during clamping, and the waist-shaped groove adjusting block is adjusted to a proper position for accurate positioning. The wedge-shaped pressing block is locked on the clamp body, and is clamped by utilizing the wedge-shaped structure, so that the clamping is reliable. The utility model has simple operation and high clamping efficiency, all accessories are subjected to quenching and tempering, the contact part of the clamp body and the wedge-shaped pressing block is locally quenched, the clamp is wear-resistant and not easy to deform, and the service life is prolonged.

Description

Eccentric fixture for square valve bank

Technical Field

The utility model belongs to the field of clamps, and particularly relates to an eccentric clamp of a square valve bank.

Background

Square valve blocks are typically machined in a lathe, which requires the use of eccentric clamps. The common eccentric clamp of the square valve group comprises a single-acting four-jaw clamp and a linkage four-jaw clamp. However, the single-action four-jaw clamp and the linkage four-jaw clamp have long clamping time and high labor intensity; the positioning precision is poor, and the clamping is not firm; the fixture is easy to deform, and the service life is low.

Disclosure of Invention

The utility model aims to provide the eccentric clamp of the square valve group, which solves the problems that the single-action four-jaw clamp and the linkage four-jaw clamp provided in the background art have long clamping time and high labor intensity; the positioning precision is poor, and the clamping is not firm; the fixture is easy to deform and has a low service life.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the square valve group eccentric clamp comprises a clamp body, a wedge-shaped pressing block and a waist-shaped groove adjusting block, wherein a wedge-shaped eccentric groove is formed in the clamp body, the wedge-shaped pressing block is arranged on one side of an inclined plane of the wedge-shaped eccentric groove, the waist-shaped groove adjusting block is arranged at the end part of the wedge-shaped eccentric groove, and the waist-shaped groove adjusting block can axially move in the wedge-shaped eccentric groove.

Preferably, the front end of the waist-shaped groove adjusting block is provided with a fine adjusting gasket.

Preferably, a damage-stopping gasket is arranged on the vertical end face of the wedge-shaped pressing block.

Preferably, a spring is arranged below the wedge-shaped pressing block and is arranged in the wedge-shaped eccentric groove.

Compared with the prior art, the utility model has the beneficial effects that: during clamping, the square valve group only needs to lean against the positioning surface of the clamp body, and the waist-shaped groove adjusting block is adjusted to a proper position for accurate positioning. The wedge-shaped pressing block is locked on the clamp body, and is clamped by utilizing the wedge-shaped structure, so that the clamping is reliable. The utility model has simple operation and high clamping efficiency, all accessories are subjected to quenching and tempering, the contact part of the clamp body and the wedge-shaped pressing block is locally quenched, the clamp is wear-resistant and not easy to deform, and the service life is prolonged.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is an exploded perspective view of the present utility model;

in the figure: 1. a clamp body; 2. a spring; 3. a wedge-shaped pressing block; 4. a long screw with a hexagonal round head; 5. a damage-stopping gasket; 6. an internal hexagonal countersunk head screw; 7. square valve group; 8. fine tuning the gasket; 9. a waist-shaped groove adjusting block; 10. a short screw with a hexagonal round head; 11. wedge-shaped eccentric grooves; 12. a lower inclined plane; 13. an upper inclined plane; 14. a waist-shaped groove; 15. a vertical end face; 16. a countersunk hole; 17. and a positioning surface.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhanging, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

As shown in fig. 1-2, the eccentric fixture for the square valve group in the embodiment comprises a body 1, a wedge-shaped pressing block 3 and a waist-shaped groove adjusting block 9. The clamp body 1 is cylindrical, a bolt hole is formed in the bottom of the clamp body, and the clamp body 1 is connected to the nose end of a lathe spindle through a conversion flange. The upper end of the fixture body 1 is provided with a wedge-shaped eccentric groove 11, the wedge-shaped eccentric groove 11 is trapezoidal, and the lower end is narrow and the upper end is wide. The wedge-shaped pressing block 3 is also trapezoid, the lower end of the wedge-shaped pressing block is narrow, the upper end of the wedge-shaped pressing block is wide, the wedge-shaped pressing block 3 is fixed in the wedge-shaped eccentric groove 11 through the inner hexagonal round head long screw 4, and the upper inclined surface 13 of the wedge-shaped pressing block 3 is tightly attached to the lower inclined surface 12 of the wedge-shaped eccentric groove 11. The waist-shaped groove adjusting block 9 is square, a waist-shaped groove 14 is formed in the axial direction, and the waist-shaped groove adjusting block 9 is connected to the end portion of the wedge-shaped eccentric groove 11 of the clamp body 1 through an inner hexagonal round head short screw 10. The waist-shaped groove adjusting block 9 can axially move relative to the clamp body 1 within the range limited by the waist-shaped groove 14, so that the positioning accuracy is adjusted.

The eccentric fixture of the square valve group of the embodiment is specifically used as follows: the square valve block 7 is placed in the wedge-shaped eccentric groove 11 of the fixture body 1, and the square valve block 7 is abutted against the positioning surface 17 of the wedge-shaped eccentric groove 11. The waist-shaped groove adjusting block 9 is placed at the end part of the wedge-shaped eccentric groove 11, and the inner hexagonal round head short screw 10 is inserted into the waist-shaped groove 14 on the waist-shaped groove adjusting block 9 and screwed into the corresponding screw hole on the wedge-shaped eccentric groove 11. The waist-shaped groove adjusting block 9 is axially adjusted, so that the front end of the waist-shaped groove adjusting block 9 is close to the end part of the square valve group 7, and the inner hexagonal round head short screw 10 is locked. The wedge-shaped pressing block 3 is placed in a gap between the square valve group 7 and the wedge-shaped eccentric groove 11, the upper inclined surface 13 of the wedge-shaped pressing block 3 faces the lower inclined surface 12 of the wedge-shaped eccentric groove 11, the wedge-shaped pressing block 3 is locked on the clamp body 1 by using the inner hexagonal round head long screw 4, and the square valve group 7 is clamped by utilizing the extrusion of the upper inclined surface 13 and the lower inclined surface 12. And finally, connecting the conversion flange at the bottom of the clamp body 1, and connecting the conversion flange to the nose end of the lathe spindle to finish clamping.

In a preferred embodiment of the present utility model, the front end of the waist-shaped groove adjusting block 9 may be further provided with a fine-tuning gasket 8, the fine-tuning gasket 8 is fixed at the front end of the waist-shaped groove adjusting block 9 through the inner hexagonal countersunk head screw 6, and the fine-tuning gasket 8 may fine-tune the position of the square valve group 7, so as to ensure positioning accuracy.

Further, a damage-stopping gasket 5 is connected to the vertical end face 15 of the wedge-shaped pressing block 3, and the damage-stopping gasket 5 is fixed to the vertical end face 15 of the wedge-shaped pressing block 3 through an inner hexagonal countersunk head screw 6. The damage-stopping gasket 5 can avoid direct contact between the wedge-shaped pressing block 3 and the square valve group 7, reduce abrasion of the wedge-shaped pressing block 3 and prolong the service life of the wedge-shaped pressing block 3. Simultaneously, all accessories are subjected to quenching and tempering, the inclined surface of the clamp body 1 contacted with the wedge-shaped pressing block 3 is subjected to local quenching treatment to HRC 37-HRC 42, the roughness is within 0.8, and the service life of the clamp is further prolonged.

A spring 2 can be arranged below the wedge-shaped pressing block 3, and the spring 2 is placed in a counter-sunk hole 16 positioned on the ground of the wedge-shaped eccentric groove 11. When the long screw 4 of the inner hexagonal round head is screwed down, the wedge-shaped pressing block 3 moves downwards to squeeze the spring 2, when the long screw 4 of the inner hexagonal round head is unscrewed, the spring 2 resets, the wedge-shaped pressing block 3 is pushed out upwards, the clamping process is simplified, and the clamping efficiency is improved.

The foregoing describes the basic principles and advantages of the present utility model, and it is to be understood that the above examples are illustrative only of the technical aspects of the present utility model and not limiting thereof. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate from the disclosure that modifications may be made to the solutions recited in the foregoing embodiments, or that equivalents may be substituted for in part or all of the features thereof. Any obvious substitutions without departing from the inventive concept are within the scope of the utility model.

Claims

1. The square valve group eccentric clamp is characterized by comprising a clamp body (1), a wedge-shaped pressing block (3) and a waist-shaped groove adjusting block (9), wherein a wedge-shaped eccentric groove (11) is formed in the clamp body (1), the wedge-shaped pressing block (3) is arranged on one side of a lower inclined surface (12) of the wedge-shaped eccentric groove (11), the waist-shaped groove adjusting block (9) is arranged at the end part of the wedge-shaped eccentric groove (11), and the waist-shaped groove adjusting block (9) can axially move in the wedge-shaped eccentric groove (11).

2. The eccentric fixture of a square valve group according to claim 1, characterized in that the front end of the waist-shaped groove adjusting block (9) is provided with a fine-tuning gasket (8).

3. The eccentric fixture of the square valve group according to claim 2, wherein a damage stopping gasket (5) is arranged on the vertical end surface (15) of the wedge-shaped pressing block (3).

4. A square valve group eccentric clamp according to claim 3, characterized in that a spring (2) is arranged below the wedge-shaped pressing block (3), and the spring (2) is arranged in the wedge-shaped eccentric groove (11).