JPS5926002A - Device for automatically measuring eccentricity of bar- like rotating body - Google Patents

Abstract

PURPOSE:To measure automatically the eccentricity of plural positions by bringing the contactors of plural electrogages into contact with the outside circumferential surface of a bar-like rotating body and supplying time-dividedly the outputs the gages with a multiplexer to a measurement circuit. CONSTITUTION:A lifting plate is in the chain lined position in the figure in an initial state, and when the operator pushes a start which 18, a driving means 7 for lifting is actuated by a control circuit 19. Then a lifting plate 15 is lowered and the contactors 9a of electrogages are lowered down to the positions where they are brought into contact with the outside circumferential surface of a rotating body 3 which is an object to be measured. In return, a driving means 15 for rotation is operated and the contactors 9a in contact with the outside circumferential surface thereof are moved vertically but slightly, thus producing outputs according to the movement thereof. The outputs of the respective gages 9 are supplied through a multiplexer 20 to a measurement circuit 21. The multiplexer 20 supplies selectively the outputs of the gates 9 to the circuit 21 at every one rotation of the body 3, by which the max. value, min. value and eccentricity of the outside diameter of the body 3 in the plural positions thereof are time-dividedly measured.

Description

[Detailed Description of the Invention] +1-ζ-1 The present invention is an eccentric rod-shaped rotating body! Ii! This relates to the l1llllj fixed device.

σi'i'):
J! If so, what about T and y at several locations on this rotating body? +1 core side 'JI'7. Is there something you have to do?
Since there was no suitable measuring device available, a great deal of time and effort had been wasted in creating a well-established measuring device.

The present invention was invented in view of the above-mentioned circumstances, and one embodiment of each will be described below.

24'x 1 In FIG. 2 and FIG. 2, one drawing 2.2 is provided on the base E, 71 at a predetermined interval. Each bite 2 has a V-shaped catch #''#2 [1] on its upper surface 811. So, this reception ri'i 2 tX to t(!!
The shaft 4 of the T/11-shaped rotating body 3, which is the object to be measured, is set at 1L.
Ru. Jf is placed on the upper blade of the rotating body 3.

Downplay)・sl-,i:,Fβ't Hil+fits freely into the guide 41:6.6 standing on the base 1, pc-BH:,stomach? When the working shaft 8 of the first drive jl+D means 7 is made to move 2 ((7)), the 4! I+ El moves up and down!'
1ill, Jl descending plate 5 rises μ, T-, but
通・）: ri is the other line in Figure 1, iCi). On the lowering plate 5&, the electro gauge j tatami 9 of tW number is 1.
11, the contact 9a extends downward through the Iori plate 5. Each contactor 9a is set so as to contact the outer circumferential surface of the rotary body 3 when the first class plate 5 descends. In addition, a Q'' auxiliary plate 10 is fixed to the right end of the unloading plate 5, and a microswitch 12 having a follower 11 in contact with this auxiliary plate 10 is arranged on the right side with a support plate 15 interposed therebetween. ing. This switch 12 is for detecting the ascending position, the upper position of the J5 plate 5, and the lowering position. Furthermore, base 1
A second means 15 is provided at the left end of the plate 14, and its 111 force rotation 4 ([+
The heel 4 of the rotating body 3 is connected to the flexible coupling 16 via a flexible coupling 17 .

Next, to explain the measurement procedure, in the first Jul-shaped case, the lowering plate 5 is in the chain position shown in Figure 1, and the rotating body 3, which is the object to be measured, is placed at , and insert and connect the shaft to the cap ring 17. Then, when the starting switch 18 shown in FIG. 5 is pressed, the lifting drive means 7 is activated via the control circuit 19, and the lifting plate 5 begins to lower. Electrogauge 9 adhesive:
When the child 9a descends to a position where it comes into contact with the outer peripheral surface of the rotating body 3, the actuating lever of the drive means 7 is stopped by a signal from the switch 12, and the actuating lever of the drive means 7 is stopped instead.
But l'F! til't,, its output 11i! 116
The rotating body 3 is rotated a number of times corresponding to the number of electro gauges 9 via the rotor k and the coupling 17. In this example, since there are six electro gauges 9, the number of rotating bodies 3 is 51.
ij1 tumbled Z).

Due to the rotation of the rotating body 5, the contactor 9a in contact with the outer circumferential surface of the rotating body 5 moves downward by -L, albeit slightly, and produces an output corresponding to the rotation. The output of each electrogauge 9 is supplied to a measuring circuit 19 via a multiplexer 20, as shown in FIG. The multiplexer 20 has a rotating body 501 rotations fl
), the output of each electro gauge 9 is switched and supplied to the measuring circuit 21, and the maximum value of the outer diameter at several locations of the rotating body 5 is determined.
mtJ·f]1+ + Eccentricity, deviation, etc. are measured in a time-division manner. The measurement results by the measurement circuit 21 are multiplexed.
+' 22 to the printer, and at this time, the part number input to the multiplexer 22 from the keyboard 24 is also output. Note that in this example, printer 2
Although the measurement results are output in step 3, a digital display device (shown in the figure) may be used in conjunction with the printer 23 for output. When the rotating body 3 has rotated the required number of times, the drive means 15 is automatically stopped via the control circuit 19, and the means 7 for -Pl, 1tTi are activated again. Plate 5 is P(λ1
It is returned to the position indicated by the chain line in the figure.

According to the present invention, the control of the initial digit B of the rod-shaped rotating body is controlled by Bi
The output of multiple Elf and L-Ctrogauges can be measured in a time-division manner via a multiplexer to a single constant circuit. Tada ni'/1 Z).

[Brief explanation of drawings]

, 81T 1 Figure fd Book 'A liM', Nosho 17
ri l17J,'J2Z is i% 1'641l-II
Pp cross section [Tough, 3rd [At] circuit block diagram. 1...Base 2...Bearing 2
a... Receiving groove 3... Rod-shaped rotating body'
4... Axis of rod-shaped rotating body 5... Lifting plate 7... First, @', BID means 9
...Electronic log gauge 12...Detection switch 15...Second driving means 16...
...Output shaft 17...Coupling 19...
...Control circuit 20...Multiplexer 21...Measurement circuit L) Kaederu (1 person Stock this month, Seikosha agent Patent attorney ±
17> Upper shoes

Claims (1)

[Claims] jl'x III Frame that is a treasure゛) (Tree 11 that can freely rotate the rotary body, and 1 piece of 2 rod-shaped pieces 1t)
The first one on three sides; the one who will retreat by any means! '
f li'? When the lowering plate is supported by the Jj'1 descending plate and is lowered, the rq number of workpieces and chromographs that contact around the 10th and 10th rotor around the and a second movable means for causing the rod-shaped rotating body to rotate while in contact with the rotating body; Measurement times 1 supplied
・Equipped with
11' City equipment.