CN218253962U

CN218253962U - Clamp for processing annular part

Info

Publication number: CN218253962U
Application number: CN202222182373.8U
Authority: CN
Inventors: 王飞; 徐晓卫; 陈洪波
Original assignee: Jiangsu Xiangneng Science & Technology Development Co ltd
Current assignee: Jiangsu Xiangneng Science & Technology Development Co ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2023-01-10
Anticipated expiration: 2032-08-18

Abstract

The utility model discloses a clamp for processing a ring-shaped piece, which relates to the technical field of processing the ring-shaped piece and comprises a base; a plurality of electromagnetic blocks are uniformly distributed and annularly arranged on the base; the electromagnetic block can attract and fix the annular workpiece after the power switch is switched on; the self-centering mechanism comprises a rotating disk positioned in the center of the electromagnetic block and a plurality of ejector rod assemblies surrounding the rotating disk; a plurality of arc-shaped bulges are arranged on the outer edge of the rotating disc; when the rotating disc is rotated, the ejector rod assembly stretches so as to center the annular workpiece; the electromagnetic block is used for adsorbing and fixing the annular workpiece, and the annular workpiece is prevented from being directly fixed by the self-centering mechanism, so that the abrasion of the self-centering mechanism can be effectively avoided, and the accuracy of self-centering of the annular workpiece is ensured; from centering mechanism includes guide bar and rotary disk, utilizes the rotary disk to order about flexible when a plurality of guide bars, simple structure, to the cyclic annular work piece from the precision height of centering, convenient operation practices thrift the manpower simultaneously.

Description

Clamp for processing annular part

Technical Field

The utility model relates to a technical field of cyclic annular processing especially relates to an anchor clamps are used in cyclic annular processing.

Background

The annular ferromagnetic metal ferrule is very troublesome to process on a vertical lathe, and the main reasons are as follows: during processing, a workpiece needs to be clamped on a vertical lathe, the center of a bearing ring needs to be corrected to be concentric with the center of a main shaft of the vertical lathe, and the workpiece needs to be aligned manually because a large-scale matched three-jaw self-centering clamp does not exist on the numerical control vertical lathe, so that the alignment process is particularly troublesome, the alignment process can only use knocking and smashing to enable the ring to shift to achieve the concentric purpose, the process wastes time and labor, and the processing efficiency is low. If the center is not right, the workpiece is eccentric with the reference shaft after being processed, so that the quality of the product is reduced or the product is scrapped, the product qualification rate is low, and the production cost of an enterprise is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves is: provided is a jig for processing a ring-shaped member, which can solve the problems mentioned in the background art.

In order to solve the main technical problems, the following technical scheme is adopted:

a jig for machining a ring-shaped member, comprising: a base for mounting and supporting the components; a plurality of electromagnetic blocks are uniformly distributed and annularly arranged on the base; the electromagnetic block can attract and fix the annular workpiece after the power switch is switched on; the self-centering mechanism comprises a rotating disk positioned in the center of the electromagnetic block and a plurality of ejector rod assemblies surrounding the rotating disk; a plurality of arc-shaped bulges are arranged on the outer edge of the rotating disc; when the rotating disc is rotated, the ejector assembly extends and retracts to center the annular workpiece.

Preferably, the ejector rod assembly comprises a roller, a guide seat, a return spring and an ejector rod shaft; the guide seat is arranged on the base and is arranged among the electromagnetic blocks at intervals; the ejector rod shaft is slidably mounted on the guide seat; one end of the reset spring is connected with a shaft shoulder in the middle of the mandril shaft, and the other end of the reset spring is connected with the guide seat; the roller is hinged to the tail of the push rod shaft and clings to the outer edge of the rotating disc.

Preferably, the head of the jack-rod shaft is a smooth spherical shape.

Preferably, there are four of said ram assemblies; the arc-shaped bulges correspond to the ejector rod assemblies one by one; eight electromagnetic blocks are provided.

Preferably, a locking assembly capable of inhibiting or releasing rotation of the rotating disc is mounted on the rotating disc.

Preferably, the locking assembly comprises a pressure plate pressing on the rotating disc and a locking nut positioned on the pressure plate and mounted on the spindle of the rotating disc.

Compared with the prior art, the utility model discloses be applied to cyclic annular work piece utensil and possess following advantage:

(1) The electromagnetic block is used for adsorbing and fixing the annular workpiece, and the self-centering mechanism is prevented from being directly utilized for fixing, so that the abrasion of the self-centering mechanism can be effectively avoided, and the accuracy of self-centering of the annular workpiece is guaranteed.

(2) The self-centering mechanism comprises guide rods and a rotating disk, the guide rods are driven by the rotating disk to stretch out and draw back, the structure is simple, the precision of self-centering of the annular workpiece is high, operation is convenient, and manpower is saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some examples of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.

FIG. 1 is a schematic view of the overall structure;

FIG. 2 is a schematic view of the overall structure of the centering process;

fig. 3 is a schematic top view of the overall structure.

In the figure: the electromagnetic block type lifting mechanism comprises a base 1, an electromagnetic block 2, a rotating disc 3, an arc-shaped bulge 31, a push rod assembly 4, rollers 41, a guide seat 42, a return spring 43, a push rod shaft 44, a pressing plate 5 and a locking nut 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliaries according to specific implementation conditions.

Referring to fig. 1-3, a clamp for processing a ring-shaped member includes a base 1, an electromagnetic block 2 and a self-centering mechanism.

The electromagnetic block 2 is generally eight and evenly distributed on the base 1; the electromagnetic block 2 controls the existence of magnetism through a power switch (not shown in the figure), and when the power switch is switched on, the electromagnetic block 2 can attract the annular workpiece and the annular workpiece cannot slide; when the power switch is turned off, the annular workpiece can slide on the surface of the electromagnetic block 2, so that the centering of the self-centering mechanism is facilitated.

The self-centering mechanism comprises a rotating disk 3 and a mandril assembly 4; the rotating disc 3 is positioned at the center of the ring surrounded by the electromagnetic blocks 2, and the rotating disc 3 can rotate under the action of external force; the ejector rod assemblies 4 are multiple and also encircle the rotating disc 3 for one circle; the ram assemblies 4 are typically four; the outer edge of the rotating disc 3 is provided with a plurality of arc-shaped protrusions 31, the number of the arc-shaped protrusions 31 is the same as that of the ejector rod assemblies 4, and the number of the arc-shaped protrusions 31 is usually four; the rotary plate 3 is integrally formed with the arc-shaped protrusion 31.

The mandril assembly 4 comprises a roller 41, a guide seat 42, a return spring 43 and a mandril shaft 44; the four guide seats 42 are arranged on the base 1, the number of the guide seats 42 is four, and the four guide seats 42 are arranged among the eight electromagnetic blocks 2 at intervals, namely two electromagnetic blocks 2 are arranged between every two guide seats 42; the top rod shaft 44 is slidably mounted on the guide seat 42; the reset spring 43 is sleeved outside the top rod shaft 44, one end of the reset spring is connected to a shaft shoulder in the middle of the top rod shaft 44, and the other end of the reset spring is connected to the guide seat 42; the roller 41 is hinged at the tail part of the top rod shaft 44 and clings to the outer edge of the rotating disk 3; preferably, the end of the jack shaft 44 facing away from the roller 41 is smooth and spherical; when the rotating disc 3 is rotated, the roller 41 expands and contracts along with the curvature of the arc-shaped protrusions 31 of the rotating disc 3, when the rotating disc 3 is rotated to a certain position, the head of the ejector rod shaft 44 abuts against the inner wall of the annular workpiece, and since the four arc-shaped protrusions 31 of the rotating disc 3 are completely overlapped after being rotated, the rotating disc 3 is rotated, and when the head of the ejector rod shaft 44 abuts against the inner wall of the annular workpiece, the automatic centering of the annular workpiece is completed.

A locking assembly capable of restraining or releasing the rotation of the rotating disc 3 is arranged on the rotating disc 3; after the locking assembly acts, the action of the rotating disc 3 can be inhibited; the locking assembly comprises a pressure plate 5 and a locking nut 6; the pressing plate 5 is arranged on the rotating disc 3, and the locking nut 6 is positioned on the pressing plate 5 and is arranged at the top of a spindle of the rotating disc 3, which is used for rotating by the rotating disc 3; after the locking nut 6 is screwed down, the annular workpiece can be positioned, after the locking assembly is loosened, the ejector rod shaft 44 returns to the initial position under the action of the reset spring 43, after the annular workpiece is self-centered, the electromagnetic block 2 adsorbs and fixes the annular workpiece, at the moment, the rotating disc 3 is loosened, and the reset spring 43 enables the ejector rod shaft 44 to be far away from the annular workpiece under the action of self elasticity, so that the ejector rod shaft 44 is prevented from contacting the annular workpiece for a long time, and the accuracy reduction caused by the fact that the ejector rod shaft 44 is subjected to excessive abrasion and deformation due to stress is avoided.

The utility model discloses a working process does: when the self-centering electromagnetic block is used, an annular workpiece to be machined is placed on the electromagnetic block 2, the rotating disc 3 is rotated, in the rotating process, the arc-shaped protrusions 31 of the rotating disc 3 simultaneously eject the ejector rod shafts 44 to the outer side of the rotating disc 3, and when the heads of the ejector rod shafts 44 contact the inner wall of the annular workpiece, the annular workpiece completes self-centering operation; the rotating disk 3 is reversely loosened, and the reset spring 43 drives the top rod shaft 44 to deviate from the inner wall of the annular workpiece under the action of the self elastic force; and the electromagnetic quick switch is switched on, and the electromagnetic block 2 adsorbs and fixes the annular workpiece.

It should be noted that, in the present invention, "upper, lower, left, right, inner and outer" are defined based on the relative position of the components in the drawings, and are only for the clarity and convenience of describing the technical solution, it should be understood that the application of the directional terms does not limit the protection scope of the present application.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or some of the technical features may be substituted by equivalent substitutions, modifications and the like, all of which are within the spirit and principle of the present invention.

Claims

1. The utility model provides a ring member processing is with anchor clamps which characterized in that: the method comprises the following steps:

a base for mounting and supporting the components;

a plurality of electromagnetic blocks are uniformly distributed and annularly arranged on the base; the electromagnetic block can attract and fix the annular workpiece after the power switch is switched on;

the self-centering mechanism comprises a rotating disk positioned in the center of the electromagnetic block and a plurality of ejector rod assemblies surrounding the rotating disk; a plurality of arc-shaped bulges are arranged on the outer edge of the rotating disc; when the rotating disc is rotated, the ejector assembly extends and retracts to center the annular workpiece.

2. The jig for machining a ring-shaped member according to claim 1, wherein the ram assembly includes a roller, a guide base, a return spring, and a ram shaft; the guide seat is arranged on the base and is arranged among the electromagnetic blocks at intervals; the ejector rod shaft is slidably mounted on the guide seat; one end of the reset spring is connected with a shaft shoulder in the middle of the mandril shaft, and the other end of the reset spring is connected with the guide seat; the roller is hinged to the tail of the push rod shaft and clings to the outer edge of the rotating disc.

3. The jig for machining a ring-shaped material according to claim 2, wherein a head portion of the mandrel shaft is a smooth spherical shape.

4. The jig for machining a ring member according to claim 1, wherein the ejector pin assemblies are four in number; the arc-shaped bulges correspond to the ejector rod assemblies one by one; eight electromagnetic blocks are provided.

5. The jig for machining a ring-shaped member according to any one of claims 1 to 4, wherein a lock assembly capable of suppressing or releasing rotation of the rotating plate is attached to the rotating plate.

6. The clamp of claim 5, wherein the locking assembly comprises a pressing plate pressing against the rotating plate and a locking nut mounted on the rotating plate mandrel above the pressing plate.