METHOD OF INSPECTING HORIZONTAL STATE OF PICKUP UNIT

• Main Authors: BANG, HO CHEON, KIM, CHANG JIN, JUNG, YEON HYUK, KIM, DONG JIN, JANG, SEUNG HO
• Format: Patent
• Language: English; Korean
• Published: 12.05.2014
• Subjects: BASIC ELECTRIC ELEMENTS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES; CONVEYING; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; HAND TOOLS; HANDLING THIN OR FILAMENTARY MATERIAL; MANIPULATORS; PACKING; PERFORMING OPERATIONS; PNEUMATIC TUBE CONVEYORS; PORTABLE POWER-DRIVEN TOOLS; SEMICONDUCTOR DEVICES; SHOP CONVEYOR SYSTEMS; STORING; TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING; TRANSPORTING

The present invention relates to a method for inspecting the horizontal state of a pickup unit which comprises: a collet which is to adsorb a die; a pickup head where the collet is mounted; and a pickup body where the pickup head is mounted and which is mounted in a die transfer unit that is to move the die, in order to elastically move in a vertical direction. The method for inspecting the horizontal state of a pickup unit comprises as follows: a step of mounting a horizontal inspection jig having a plate shape in the pickup head instead of the collet; a step of adhering a first point of the horizontal inspection jig to a reference pin having a fixed height, and lowering the pickup unit so that a vertically elastic first displacement can occur between the die transfer unit and the pickup unit; a step of lowering the pickup unit so that a second displacement elastic to a second point of the horizontal inspection jib can occur; and a step of verifying the horizontal state of the pickup unit by comparing the first displacement with the second displacement.