JPH0232002U

JPH0232002U -

Info

Publication number: JPH0232002U
Application number: JP10943788U
Authority: JP
Priority date: 1988-08-19
Filing date: 1988-08-19
Publication date: 1990-02-28
Anticipated expiration: 2003-08-19
Also published as: JPH0632565Y2

Description

[Brief explanation of the drawing]

第１図及び第２図はこの考案の実施例を示して
おり、第１図は測定前の状態を示す断面図、第２
図は測定時の状態を示す断面図、第３図及び第４
図は従来例を示しており、第３図は第２図相当の
一つの従来例の断面図、第４図は他の従来例を示
す断面図である。１……被測定物、６……ユニツトベアリング、
７……キヤリヤ、８……測定基準面、９……シヤ
フト、１０……雄ネジ、１１……雌ネジソケツト
、１２……モータ、１４……シヤフト上昇用アク
チユエータ、１５……ブラケツト、１６……当て
金、１７……弾性体、１８……振れ検出器。 Figures 1 and 2 show an embodiment of this invention, with Figure 1 being a sectional view showing the state before measurement, and Figure 2 being a cross-sectional view showing the state before measurement.
The figure is a sectional view showing the state at the time of measurement, Figures 3 and 4.
The figures show conventional examples; FIG. 3 is a sectional view of one conventional example corresponding to FIG. 2, and FIG. 4 is a sectional view of another conventional example. 1...Object to be measured, 6...Unit bearing,
7...Carrier, 8...Measurement reference surface, 9...Shaft, 10...Male thread, 11...Female thread socket, 12...Motor, 14...Shaft lifting actuator, 15...Bracket, 16... Pad, 17...Elastic body, 18... Runout detector.

Claims

[Scope of utility model registration request]

In the device for measuring runout of a measured object, the measured object is attached to a carrier via a unit bearing, a preload is applied to the unit bearing, the measured object is rotated by a motor, and the runout of the measured object is measured by a runout detector. A female screw socket connected to the motor is screwed into the male screw of the shaft that is inserted into the object to be measured, and a bracket provided on the shaft lifting actuator side is connected between the shaft and the shaft lifting actuator. A stopper is interposed, and the stopper is disposed so as to be able to come into contact with and separate from the bracket, and an elastic body is set between the stopper and the shaft, and when the stopper is brought into contact with the bracket, the shaft is moved. After screwing the female threaded socket onto the male thread of the shaft, the carrier is lowered to the measurement reference surface to release the contact between the pad and the bracket. A constant preload is applied to the unit bearing and the object to be measured is rotated by the motor.
A device for measuring runout of an object to be measured, characterized in that the runout of the surface of the object to be measured is measured by a runout detector.