CN201916360U

CN201916360U - Elastic self-adaptive mechanism

Info

Publication number: CN201916360U
Application number: CN2010202597921U
Authority: CN
Inventors: 喻杰; 赵朋林
Original assignee: Xian Aircraft Design and Research Institute of AVIC
Current assignee: Xian Aircraft Design and Research Institute of AVIC
Priority date: 2010-07-16
Filing date: 2010-07-16
Publication date: 2011-08-03
Anticipated expiration: 2020-07-16

Abstract

The utility model discloses an elastic self-adaptive mechanism which comprises a spring plate, a stop support, a stop screw and a nut, wherein the top end of the spring plate is connected with a sliding block on a linear guide rail through a bolt; the bottom end of the spring plate is connected with a moving part of a test bench through a bolt; the stop support is arranged on the moving part; the stop screw is screwed in a threaded hole of the stop support, and the extending length can be adjusted; and the stop screw is screwed by the nut after adjustment. The elastic self-adaptive mechanism has simple structure and low cost, is convenient to assemble and disassembled and replace, and can effectively solve the problem of moving clamping caused by overlarge parallelism error between linear guide rails through the deformation at the flexible connecting part.

Description

A kind of elasticity adaptive mechanism

Technical field

The utility model belongs to the mechanical mechanism technology.

Background technique

High-precision linear rail can provide reliable support for the single dof mobility along a certain direction, and have steady, little, low, the motion speed advantages of higher of wearing and tearing of beating of motion, so linear rail has obtained on equipment such as current all kinds of test-beds and lathe using widely.

Yet when using the many linear rails that are parallel to each other, the parallelism that requires all to keep very high between the every guide rail just can make mechanism's operation level and smooth.For example use length that the above SCHNEEBERGER of two or two company produces during as the linear rail of G2, to require the parallelism error of guide rail to be no more than 0.015mm as 2000mm, grade of accuracy.This has just increased the difficulty and the cost of device fabrication.

Summary of the invention

The purpose of this utility model is: design a kind of elasticity adaptive mechanism simple in structure, with low cost, easy-to-mount, to solve on the test-bed because of the many excessive motion clamping stagnation problems that cause of linear rail parallelism error.

The technical solution of the utility model is: a kind of elasticity adaptive mechanism, comprise spring sheet 1, restraint bearing 2, restraint screw 3, nut 4, the top of spring sheet is connected with slide block 6 on the linear rail 5 by bolt, and the bottom of spring sheet is connected with the moving element 7 of test-bed by bolt; The restraint bearing is installed on the moving element; The restraint screw is screwed among the tapped hole on the restraint bearing, and its extrusion is adjustable, and mixing up the back, to use nut to be equipped with tight.

Described spring sheet cross section is " several " font bilateral symmetry shape, can take place laterally and the distortion on the lateral.

The maximum displacement that the restraint screw can upstop takes place on lateral, the maximum displacement of horizontal direction is then by moving element self restraint.

Advantage and the beneficial effect that the utlity model has are: the utility model is simple in structure, and is with low cost, and is convenient to disassembling, assembling and replacing, and the distortion by the place of flexibly connecting has solved the motion clamping stagnation problem that causes because of the parallelism error between linear rail is excessive effectively.

Description of drawings

Fig. 1 is the utility model elasticity adaptive mechanism schematic representation;

Fig. 2 is the utility model user mode stereogram.

Fig. 3 is the A-A sectional view of the utility model user mode stereogram.

Embodiment

Below in conjunction with drawings and Examples the present invention is described in detail.

As Fig. 1, present embodiment comprises spring sheet, restraint bearing, restraint screw, nut, and the top of spring sheet is connected with slide block on the linear rail by bolt, and the bottom of spring sheet is connected with the moving element of test-bed by bolt; The restraint bearing is installed on the moving element; The restraint screw is screwed among the tapped hole on the restraint bearing, and its extrusion is adjustable, and mixing up the back, to use nut to be equipped with tight.

Described spring sheet cross section is " several " font bilateral symmetry shape, can take place laterally and the distortion on the lateral; Change the sectional shape of spring sheet and the rigidity that thickness can regulate stage motion parts are shown on horizontal and lateral.

As Fig. 2, Fig. 3, when the parallelism generation deviation of 4 linear rails that are parallel to each other, spring sheet will take place laterally and the distortion of side direction, make the moving element of test-bed adapt on the different height cross sections relative position that changes between 4 linear rails automatically, be subjected to clamping stagnation thereby prevent to move.

Claims

1. elasticity adaptive mechanism, comprise spring sheet (1), restraint bearing (2), restraint screw (3), nut (4), it is characterized in that, the top of spring sheet is connected with slide block (6) on the linear rail (5) by bolt, and the bottom of spring sheet is connected with the moving element (7) of test-bed by bolt; The restraint bearing is installed on the moving element; The restraint screw is screwed among the tapped hole on the restraint bearing, and its extrusion is adjustable, and mixing up the back, to use nut to be equipped with tight.

2. elasticity adaptive mechanism as claimed in claim 1 is characterized in that, described spring sheet cross section is " several " font bilateral symmetry shape.