CN220050974U - Automatic centering clamping device - Google Patents

Abstract

The utility model discloses an automatic centering clamping device which mainly comprises a compression nut, a pressing plate, a planet carrier, an inner supporting spring jacket, a self-centering device and a pneumatic chuck, wherein the self-centering device comprises a pneumatic clamping device, a positioning pin and a centering device, the pneumatic chuck is arranged on a machine tool workbench, and the lower end of the self-centering device is connected with the pneumatic chuck through a blind rivet. The utility model solves the technical problems of low centering efficiency and insufficient positioning precision of the workpiece in the prior art.

Description

Automatic centering clamping device

Technical Field

The utility model relates to the field of workpiece centering and clamping, in particular to an automatic centering clamping device.

Background

Ordinary location frock only can realize coarse positioning, and every piece must be aligned, reentrant coordinate system, in actual production process, in many cases is one man many machine operation, needs spending a large amount of time alignment when boring the planet carrier, and inefficiency still can cause equipment steamed corn worker, and has operating personnel to forget to align or forget to input in the coordinate system after the alignment, has production efficiency low and quality hidden danger, so a urgent need can be fast to load into the piece and the frock of self-centering.

Disclosure of Invention

The utility model aims to provide an automatic centering clamping device, which aims to solve the technical problems of low workpiece centering efficiency and insufficient positioning precision in the prior art.

To achieve the above object, the present utility model provides a self-centering clamping device comprising: the self-centering device comprises a pneumatic clamping device, a positioning pin and a centering device, wherein the pneumatic chuck is arranged on a machine tool workbench, and the lower end of the self-centering device is connected with the pneumatic chuck through a blind rivet.

Specifically, the bottom pneumatic clamping device of the self-centering device is inserted into the central hole of the pneumatic chuck.

Specifically, the self-centering device bottom locating pin inserts the recess on the air chuck.

Specifically, the upper end centering device of the self-centering device is inserted into the inner support spring jacket.

Specifically, the planet carrier is clamped on the inner support spring clamp sleeve.

Specifically, the compression nut and the pressing plate are arranged at the upper end of the inner support spring jacket, and the center hole of the planet carrier.

Specifically, an exhaust valve and a release valve are arranged on the air chuck.

Based on the technical scheme, the embodiment of the utility model at least has the following technical effects:

(1) The automatic centering clamping device provided by the utility model has the advantages that the clamping efficiency of the pneumatic chuck is high, the precision is high, the positioning error of the automatic centering device is small, and the production efficiency is greatly improved.

(2) According to the automatic centering clamping device provided by the utility model, after the pneumatic chuck and the automatic centering device are used, only the upper workpiece and the lower workpiece are needed, and the self-centering principle is not needed for alignment, so that the quality hidden trouble caused by the fact that an operator forgets to align or forgets to input a coordinate system due to alignment is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic illustration of a self-centering device and pneumatic chuck connection according to an embodiment of the present utility model;

FIG. 3 is a schematic view of an air chuck according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the self-centering device according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the structure of an internal stay spring collet according to an embodiment of the utility model.

In the figure: 1-gland nut, 2-clamp plate, 3-planet carrier, 4-internal stay spring jacket, 5-self-centering device, 6-air chuck, 7-clamping device, 8-locating pin, 9-centering device, 10-discharge valve, 11-bleeder.

Detailed Description

For a better understanding of the objects, structure and function of the present utility model, a self-centering clamping device according to the present utility model will be described in further detail with reference to the accompanying drawings and examples. The specific embodiments described herein are to be considered in all respects as illustrative and not restrictive, and the described embodiments are intended to be illustrative only of some, but not all embodiments of the utility model.

In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-5, a self-centering clamping device, comprising: the automatic centering device comprises a compression nut 1, a pressing plate 2, a planet carrier 3, an inner supporting spring jacket 4, an automatic centering device 5 and a pneumatic chuck 6, wherein the automatic centering device 5 comprises an air clamping device 7, a positioning pin 8 and a centering device 9, the pneumatic chuck 6 is arranged on a machine tool workbench, an exhaust valve 10 and an air release valve 11 are arranged on the pneumatic chuck 6, the lower end of the automatic centering device 5 is connected with the pneumatic chuck 6 through blind bolts, the air clamping device 7 and the positioning pin 8 are arranged at the bottom of the automatic centering device 5, the air clamping device 7 is inserted into a central hole of the pneumatic chuck 6, the positioning pin 8 is inserted into a groove on the pneumatic chuck 6, the centering device 9 arranged at the upper end of the automatic centering device 5 is inserted into the inner supporting spring jacket 4, the planet carrier 3 is clamped on the inner supporting spring jacket 4, the compression nut 1 and the pressing plate 2 are arranged at the upper end of the inner supporting spring jacket 4, and the central hole of the planet carrier 3.

The pneumatic chuck 6 is fixed on a lathe bed workbench, a workpiece is mounted on the self-centering device 5 and then is placed on the pneumatic chuck 6, the work plane of the pneumatic chuck 6 is leveled by a blind rivet, the self-centering device 5 is quickly locked by a high-precision positioning surface, the blind rivet is used in the Z direction, the self-centering device 5 is connected with the pneumatic chuck 6 by the blind rivet and is locked, the pneumatic chuck 6 is in a normal locking state, the machining safety is ensured, the pneumatic chuck 6 can be opened quickly by pressing a leakage valve, and the pneumatic chuck 6 can be opened by using air pressure above 0.6 kg, so that quick replacement is performed. The upper part of the self-centering device 5 is provided with a centering device 9 for fixing a product, the centering device 9 is in taper centering, the conical surface of the self-centering device is utilized to enable the inner support spring jacket 4 to press a workpiece downwards and self-center at the same time, the pressing plate 2 and the compression nut 1 downwards press the planet carrier 3 to drive the inner support spring jacket 4, so that the outer diameter of the inner support spring jacket 4 is enlarged to achieve concentricity and the product fixing, and the concentricity can reach 0.01mm.

The automatic centering clamping device provided by the utility model has the advantages that the clamping efficiency of the pneumatic chuck is high, the precision is high, the positioning error of the automatic centering device is small, the production efficiency is greatly improved, after the pneumatic chuck and the automatic centering device are used, only the workpiece is needed to be arranged up and down, the alignment is not needed, and the mechanism uses the self-centering principle, so that the quality hidden trouble caused by the fact that an operator forgets to align or forgets to input a coordinate system due to alignment and other factors is avoided.

It will be understood that the utility model has been described with respect to certain embodiments and that various changes and equivalents may be made to those features and embodiments without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (7)

1. The utility model provides an automatic centering clamping device, includes gland nut (1), clamp plate (2), planet carrier (3), internal stay spring jacket (4), from centering device (5) and pneumatic chuck (6), its characterized in that, from centering device (5) include pneumatic clamping device (7), locating pin (8) and centering device (9), pneumatic chuck (6) are installed on the lathe workstation, from centering device (5) lower extreme and pneumatic chuck (6) link to each other through the blind rivet.

2. A self-centering clamping device according to claim 1, characterized in that the self-centering device (5) bottom air clamping device (7) is inserted into the air chuck (6) center hole.

3. A self-centering clamping device according to claim 2, characterized in that the self-centering device (5) bottom positioning pin (8) is inserted into a recess in the air chuck (6).

4. A self-centering clamping device according to claim 3, characterized in that the upper centering device (9) of the self-centering device (5) is inserted into the inner support spring jacket (4).

5. A self-centering gripping device according to claim 1, characterized in that the planet carrier (3) is clamped to an inner support spring jacket (4).

6. A self-centering clamping device according to claim 1, characterized in that the compression nut (1) and the pressure plate (2) are mounted at the upper end of the internal stay spring jacket (4), at the central hole of the planet carrier (3).

7. A self-centering clamping device according to claim 1, characterized in that the air chuck (6) is provided with an exhaust valve (10) and an air release valve (11).