CN205245931U - Cross roller bearing , four point contact ball inner circle raceway size measurement device - Google Patents

Abstract

The utility model relates to a cross roller bearing, four point contact ball inner circle raceway size measurement device, it descends to measure checkpost (4) including measuring base (1) and measuring stand (2) measures checkpost (6) on, meter (7), measuring stick (8), set up measurement stand (2) on measuring base (1), measure stand (2) perpendicular to and measure base (1), measure to install down respectively on stand (2) and measure checkpost (4) and measure checkpost (6) on, under measure checkpost (4) and go up fixed measuring rod (8), the fixed steel ball of measuring in measuring stick (8) upper end, on measure checkpost (6) and be fixed with meter (7), the terminal same fixed steel ball of measuring of meter (7) gauge outfit. The utility model discloses simple structure, it is convenient, effective to detect, raceway size in the direct indication lasso, but direct detection cross roller bearing, four point contact ball bearing inner race raceway size, it is accurate to measure numerical value. An accurate control for realizing this type of bearing inner race raceway size. The utility model discloses be particularly useful for the internal diameter be greater than 180mm, external diameter be less than in the 600mm range of size to frictional force apart from the measurement that has the accurate robot that requires, radar, medical instrument bearing.

Description

A kind of crossed roller bearing, four-point contact ball inner ring raceway dimension measuring device

Technical field

The utility model belongs to bearing detection field, relates generally to a kind of crossed roller bearing, four-point contact ball inner ring raceway dimension measuring device, for the inner ring raceway size detection of this class bearing.

Background technology

Known, robot, radar, medical instruments field critical piece bearing require to possess high accuracy, high rigidity, lightweight, the accurate characteristic of location (having uniform moment of friction), four-point contact ball, crossed roller bearing possess high accuracy, high rigidity, light-weighted performance, and can loaded on combination loading, tilting moment, realize parts and accurately locate, be widely used in the occasions such as joint of robot position, radar, medicine equipment.

Realize the precise positioning of parts, must accurately control the friction moment of bearing, make the parts can flexible rotating, can not cause location inaccurate because of bearing inertia, play again; The factor that affects bearing friction moment maximum is the play of bearing. High rigidity shaft holds bearing and is zero windage or negative play bearing, be times rolling element diameter≤0, bearing outer ring ball track size-bearing inner race raceway size-2, now, bearing ring, rolling element produce strain, the contact gap of fully eliminating part, ensures the suitable rigidity of bearing finished products. In the manufacturing, rolling element size mostly is known dimensions, wants accurately to control the friction moment of bearing completed products, must precisely control bearing collar path size, and the measurement of raceway size is particularly crucial. At present, crossed roller bearing, the measurement of four-point contact ball lasso raceway mostly are folder ball Wall-Thickness Method, and inner ring raceway size is to calculate by measurement lasso internal diameter size, inner ring folder ball wall thickness value: bearing inner race raceway size=bearing bore diameter size+2 times inner ring folder ball wall thickness. There is the error of calculation, measure conversion error in this indirect measurement method, can only meet the requirement of general turntable bearing raceway measuring technique, but to being applied to the fields such as robot, radar, medicine equipment, bearing friction moment there is the occasion of accurate requirement, folder ball wall thickness measuring method has very large defect, in actual production, can not accurately control inner ring raceway size, cause bearing finished products friction moment either large or small, rework rate is very high.

Summary of the invention

The purpose of this utility model is to provide a kind of crossed roller bearing, four-point contact ball inner ring raceway dimension measuring device, for realizing the accurate control of such bearing inner race raceway size.

The utility model completes the technical scheme that its invention task is taked: it comprises measurement base, measures column, measures clamp, measuring stick, meter. Described measurement column is fixed on to be measured on base, measures column center line perpendicular to measuring base; Measure on column upper and lower two measurement clamps are set. Fixation measuring bar on lower measurement clamp, measuring stick upper end fixation measuring steel ball, is integrated steel ball and measuring stick, and the steel ball size optical axis holds kinetoplast size and determines; Lower measuring stick is fixed by fastening bolt; Upper measurement clamp fixation measuring table, measures the same fixation measuring steel ball of gauge outfit end.

Described measurement base is horizontally disposed with, and measures the center line of column, measuring stick, meter all perpendicular to measuring base. When measurement products, adjust measuring stick and meter, its center line is overlapped.

The utility model is simple in structure, easy to detect, effective, directly shows raceway size in lasso, can direct-detection crossed roller bearing, four-point contact ball bearing inner race raceway size, measure numerical value accurate. For realizing the accurate control of such bearing inner race raceway size. The utility model is particularly useful for internal diameter and is greater than 180mm, external diameter and is less than, in 600mm size range, friction moment is had to robot, the radar of accurate requirement, the measurement of medicine equipment bearing.

Brief description of the drawings

Accompanying drawing 1 is structural representation of the present utility model.

The left view that accompanying drawing 2 is Fig. 1

In figure: 1, measure base, 2, measure column, 3, tested lasso, 4, lower measurement clamp, 5, measure clamp fastening bolt, 6, upper measurement clamp, 7, meter, 8, measuring stick, 9, measuring stick fastening bolt.

Detailed description of the invention

By reference to the accompanying drawings 1,2, specific embodiment of the utility model is illustrated:

As shown in Figure 1, 2: the utility model comprises to be measured base 1 and measure column 2, tested lasso 3, lower measurement clamp 4, upper measurement clamp 6, meter 7, measuring stick 8. Measure base 1 and be horizontally disposed with, measure on base 1 and arrange and measure column 2, measurement column 2 is perpendicular to measuring base 1; Measure the lower measurement clamp 4 of installation, upper measurement clamp 6 on column 2; Two measurement clamps are fixing by measuring clamp fastening bolt 5 respectively, make to measure clamp and move up and down along column 2, adjust measurement category; Measure clamp and also can turn round along column 2, convenient adjustment; Fixation measuring bar 8 on lower measurement clamp 4, measuring stick 8 upper end fixation measuring steel balls, are integrated steel ball and measuring stick, and steel ball is neglected greatly lasso rolling element size and is determined; Measuring stick 8 is fixed by fastening bolt 9, and measuring stick 8 position capable of regulatings are adjusted, and are beneficial to and measure different size product; Upper measurement clamp 6 fixation measuring tables 7, gauge outfit is downward, measures the same fixation measuring steel ball of gauge outfit end.

Measuring lasso raceway size realizes with control methods. With the part of known interior raceway size as standard component; Adjust the position of upper and lower measurement clamp, make between two clamps in distance and tested part raceway size close, adjust the angle of upper and lower measurement clamp, ensure that meter 7 overlaps with measuring stick 8 both center lines; Fine setting meter 7, measuring stick 8, make distance between meter 7 gauge outfit steel balls and measuring stick 8 upper end steel balls meet the requirement of measurement products size. When measurement, standard component (being equivalent to tested part 3 on drawing) is placed on the measurement steel ball of measuring stick 8, measuring raceway contacts with steel ball, taking this ball as fulcrum, rotate standard component, make standard component raceway the top (maximum point) by the measurement steel ball of meter 7, the numerical value that meter shows is demarcated as raceway size numerical value in standard component. Now raceway and two measurement steel balls have four contact points in standard component, can effective location, and do not produce location.

Claims (2)

1. a crossed roller bearing, four-point contact ball inner ring raceway dimension measuring device, it is characterized in that: it comprises measures base (1) and measure column (2), lower measurement clamp (4), upper measurement clamp (6), meter (7), measuring stick (8), arranges on described measurement base (1) and measures column (2), measures column (2) perpendicular to measuring base (1); Measure on column (2) and be separately installed with lower measurement clamp (4), upper measurement clamp (6); The upper fixation measuring bar (8) of lower measurement clamp (4), measuring stick (8) upper end fixation measuring steel ball; Upper measurement clamp (6) is fixed with meter (7), the same fixation measuring steel ball of meter (7) gauge outfit end.

2. crossed roller bearing according to claim 1, four-point contact ball inner ring raceway dimension measuring device, it is characterized in that: described measurement base (1) is horizontally disposed with, measure the center line of column (2), measuring stick (6), meter (7) all perpendicular to measuring base (1).