CN2164016Y

CN2164016Y - Detecting device of axiality error measuring instrument

Info

Publication number: CN2164016Y
Application number: CN 93228141
Authority: CN
Inventors: 战国忠
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-11
Filing date: 1993-05-11
Publication date: 1994-05-04
Anticipated expiration: 2003-05-11

Abstract

The utility model provides a detecting device of an axiality error micro computer measuring instrument. The utility model is formed by the measuring instrument together with the micro computer. The utility model can complete the measurement of the behavior error of parts of the axis class. The utility model is characterized in that a sliding block is arranged on a guiding rail, a big sliding board is arranged on the sliding block, a small sliding board is arranged on the big sliding board, and a sensor is arranged on the small sliding board. The sliding block can do longitudinal motion, and the big sliding board and the small sliding board can do laterally reciprocating motion so that the sensor is approached to each section of the measured part to complete the task of date sampling. The utility model has the advantages of high measuring precision, fast measuring speed, etc.

Description

Detecting device of axiality error measuring instrument

The utility model relates to the technology of Parts Measurement behavior error, as surveying circularity, right alignment and linearity etc.

Present general industry enterprise, owing to be subjected to the restriction of technical merit and equipment, for axial workpiece behavior error, only survey the circularity in cross section, it adopts milscale to measure, and measuring accuracy is very low, for other requirement, as right alignment and linearity etc., owing to do not have special checkout equipment, so accident.

The purpose of this utility model provides the pick-up unit in a kind of coaxiality error microcomputer-measuring instrument, it and micro computer are together, constitute coaxiality error microcomputer-measuring instrument, can finish measurement, i.e. the measurement of the behavior error of the accurate right alignment of double-basis, single benchmark right alignment, circularity, linearity to axial workpiece behavior error.

The purpose of this utility model is achieved in that

1, vertically on the slide rail slide block is arranged, big slide plate is arranged on the slide block, moving bearing on the big slide plate has small slide plate, the bearing bottom of deciding of big slide plate is fixed with vertical nut A, it and longitudinal leadscrew mesh, longitudinal leadscrew is driven by stepper motor A, the longitudinal leadscrew rotation, the nut moving linearly, can drive big slide plate and on slide rail, do vertical to-and-fro movement, small slide plate is also along with big slide plate is done vertical to-and-fro movement, big slide plate decide on the bearing fixedly big nut B, horizontal leading screw B engagement with the moving bearing of big slide plate, laterally leading screw B is driven by the stepper motor B on the big slide plate, laterally leading screw B rotation, leading screw B moving linearly, can be with big slide plate and small slide plate to make traverse motion, the fixed lateral crack double nut C that disappears on the moving bearing of small slide plate, the horizontal leading screw C that decides on the bearing with small slide plate meshes, and the pitch of the pitch ratio leading screw B of leading screw C is little, and leading screw C is driven by the stepper motor C on the small slide plate, leading screw C rotation, can drive small slide plate and make laterally past complex line micromotion, on the moving bearing of small slide plate, inductance displacement sensor is installed at big slide plate.

2, the end on vertical slide rail, the fixed conveyor case, the structure of this case is: in top bearing top installation shaft, and fix with key and back-up ring, biplate spring clearance elimination gear is enclosed within on the rotating disk optical axis, be fixed together with key and back-up ring, rotating disk uses bearing holder (housing, cover) on axle, and fixes with back-up ring, rotating disk is enclosed within axle by biplate spring clearance elimination gear and goes up rotation, top cushion also has a tail centre on top opposite on this axle, tail centre is the same with top bearing, be installed on vertical slide rail, and can vertically move back and forth, fixing driving lever on rotating disk, rotating disk drives by stepper motor D.

Above-mentioned four stepper motors are subjected to system controlled by computer.

Using method and principle of work are:

1, tested axial workpiece is placed two top between, by two top picking up, and on measured axis a cover hoop, do hoop on to encircle, driving lever is inserted, when rotating disk rotated like this, tested part was also along with rotation.

2, by microcomputer-controlled step motor A, to pay by clearance elimination gear and to drive leading screw A rotation, slide block longitudinally slide rail (Z to) moves, and large and small slide plate and sensor is delivered to the sectional position of tested part appointment.

3, send pulse by microcomputer, control step motor B drives horizontal leading screw B rotation, and big slide plate to moving, arrives apart from tested part 0.05-0.3mm place the transducer probe assembly on the small slide plate along horizontal Y.

4, send pulse signal by microcomputer, control step motor C pays by clearance elimination gear and to make leading screw C rotation, drive small slide plate with pulse equivalency δ P=0.001mm adjust transducer probe assembly further along Y to approaching tested part, in the zeroing process scope that allows.

5, the analog signal conversion of transducer probe assembly being measured by microcomputer is that digital signal stores, and finishes first point data sampling task.

6, send control signal by microcomputer, the control step motor D drives the rotation of rotating disk calibration, drive the synchronous calibration rotation of tested part, by microcomputer second is sampled again, until reach gather required counting till, finish the data sampling task in a cross section of tested part.

7, by the system controlled by computer longitudinal leadscrew, make slide block move a segment distance to vertically (Z to), finish the data sampling task in next cross section by microcomputer, till N=0 is counted in the cross section of appointment.

8, by microcomputer the data of all collections are handled, and calculated the coaxiality error of tested part.

The utility model compared with prior art can Parts Measurement behavior error, and estimates precision height (≤1 μ m).

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a front view of the present utility model.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the cut-open view of Fig. 1 along the B-B line.

Fig. 4 is the cut-open view of Fig. 1 along the A-A line.

1, vertically on the slide rail 18 slide block 19 is arranged, big slide plate is arranged on the slide block, moving bearing on the big slide plate has small slide plate, the bearing bottom of deciding of big slide plate is fixed with nut 17, it and longitudinal leadscrew 16 mesh, longitudinal leadscrew is subjected to not provide among the stepper motor A(figure) drive, the longitudinal leadscrew rotation, nut 17 moving linearlies, can drive big slide plate and on slide rail, do vertical to-and-fro movement, small slide plate is also along with big slide plate is done vertical to-and-fro movement, the hold-down nut 25 on the bearing of deciding at big slide plate, horizontal leading screw 24 engagements with the moving bearing of big slide plate, laterally leading screw 24 pays the stepper motor that is subjected on the big slide plate 20 drivings by clearance elimination gear, laterally leading screw 24 rotations, and make inlet wire and move, can be with big slide plate and small slide plate to make traverse motion, small slide plate decide fix two-way nut 27 on the bearing, with horizontal leading screw 26 engagements on the moving bearing of small slide plate, and the spacing of the gap ratio leading screw 24 of leading screw 26 is little, leading screw 26 is driven by the stepper motor 28 on the small slide plate, can drive small slide plate and make horizontal micromotion at big slide plate, on the moving bearing of small slide plate inductance displacement sensor 15 is installed.

The 22nd, guide pillar, the 23rd, sliding support.

2, the end on vertical slide rail, the fixed conveyor case, the structure of this case is: in top bearing 5 top installation shaft 3, and it is fixing with key 2 and back-up ring 4, biplate spring clearance elimination gear 8 is enclosed within on rotating disk 9 optical axises, be fixed together with key 1 and back-up ring 6, rotating disk 9 usefulness bearings 7 are enclosed within on the axle 3, and it is fixing with back-up ring 10, rotating disk is enclosed within axle by biplate spring clearance elimination gear and goes up rotation, and top being inserted in this axle 1 endoporus also has a tail centre 14 on top opposite, fixing driving lever 12 on rotating disk, rotating disk is paid by not providing among the stepper motor D(figure by clearance elimination gear) drive.

The 13rd, tested axial workpiece.

Claims

1, the pick-up unit in a kind of measuring for the coaxiality error instrument is characterized in that:

(1), vertically on the slide rail slide block is arranged, big slide plate is arranged on the slide block, moving bearing on the big slide plate has small slide plate, the bearing lower slider of deciding of big slide plate is fixed with vertical nut A, it and longitudinal leadscrew mesh, longitudinal leadscrew is driven by stepper motor A, the fixed lateral nut B on the bearing that decides at big slide plate, horizontal leading screw B engagement with the moving bearing of big slide plate, horizontal leading screw B pays the stepper motor B that is subjected on the big slide plate by clearance elimination gear and drives, the fixed lateral crack double nut C that disappears on the moving bearing of small slide plate, the horizontal leading screw C that decides on the bearing with small slide plate meshes, and the pitch of the pitch ratio leading screw B of leading screw C is little, and leading screw C pays the stepper motor C that is subjected on the small slide plate by clearance elimination gear and drives, and on the moving bearing of small slide plate inductance displacement sensor is installed;

(2), the end on vertical slide rail, the fixed conveyor case, the structure of this case is: in machine apical branch seat top installation shaft, and fix with key and back-up ring, biplate spring clearance elimination gear is enclosed within on the rotating disk optical axis, is fixed together with key and back-up ring, and rotating disk uses bearing holder (housing, cover) on axle, and fix with back-up ring, rotating disk is enclosed within axle by biplate spring clearance elimination gear and goes up rotation, and top being inserted on this axle also has a tail centre on top opposite, fixing driving lever on rotating disk, rotating disk is paid by stepper motor D by clearance elimination gear and is driven.