Centering device for plate-shaped work piece

Abstract

A centering device for a plate-shaped work piece comprises: a table (21) having a conveyor mechanism (23) for conveying a plate-shaped work piece (10) in the horizontal direction; a camera (56) for taking an image of the plate-shaped work piece (10) placed on the table (21); a table movement mechanism (28) for moving the table (21) horizontally in the direction orthogonal to the conveyance direction; a table rotation mechanism (60) for rotating the table (21) about a vertical axis; a computation unit (58) for comparing target centering position information and information acquired by the camera (56) and computing the movement amount of the conveyor mechanism (23), the movement amount of the table movement mechanism (28), and the movement amount of the table rotation mechanism (60); and a control unit (59) for controlling the conveyor mechanism (23), the table movement mechanism (28), and the table rotation mechanism (60) on the basis of the movement amounts calculated by the computation unit (58).

Description

Technical field [0001] The invention relates to a centering device for positioning a plate-shaped workpiece at a target centering position for the next process. Background technique [0002] The process of obtaining a pressure-formed product using the strip as a starting material is implemented in the following procedure. [0003] The blank is cut from the strip plate through a punch or other device. The resulting blank is transported to the vicinity of the forming press. Furthermore, the blank is fed into the forming press by the robot. The blank is pressure-formed by a forming press. [0004] The molding press has a mold for molding. The blank must be correctly placed in the forming mold. However, the blank is sometimes not in the desired position. As a countermeasure, a centering device for positioning the blank is provided. [0005] Various centering devices have been proposed in the past (for example, refer to Patent Document 1). [0006] The centering device disclosed in Pa...

AI Technical Summary

Problems solved by technology

Reduced operating rate of forming presses

[0008] In addition, when two blanks are conveyed at the same time, the control of the claws becomes complicated, and as a result, the conveyance of two blanks becomes difficult.

[0009] The transportation and position correction of the blank can be carried out by the robot without using claws, but in this case, it takes time and cannot keep up with the cycle when there is only one robot

In order to catch up with the cycle, when two robots are installed, the mutual interference of the robots becomes a problem, the control becomes complicated, and the installation space of the robots is doubled

[0010] That is, the centering device of Patent Document 1 has the following problems: it is difficult to increase the speed and the operation rate is low, so it cannot cope with multi-sheet conveyance

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