POSITIONING APPARATUS

摘要

A positioning apparatus includes a plurality of positioning devices (10) for fixedly positioning a cassette (2) on a plate (3). Each of the positioning devices (10) includes a table (160) installed on a shaft and a return spring (152) installed around the shaft. The table (160) having the cassette (2) thereon is deviated form its original position while positioning the cassette (2) at a desired position, and the return spring (152) deformed to one side depending on the deviation of the table (160). When the cassette (2) is placed at the desired position, a cylinder (130) slides downward by an air pressure and a disk (140) is pressed downward by the cylinder (130) to adhere to the cylinder (130), thereby fixing the table (160) on a base plate.