Copying system for cutting out articles of complex shape by the electroerosion method

Claim 1

A copying system for electroerosion cutting of articles of complex shape in electroerosion machines by the method of using a wire electrode-tool that copies the lines of an enlarged drawing, comprising: a board to fix said drawing; a first carriage to fix said board; a second carriage to mount the working table of the machine with the job; a pickup to trace the lines of the drawing, which is disposed over said board; a tracing system electrically connected with said pickup and having two drives, one of which moves in a mutual proportion said first and second carriages; a traverse at one end of which said pickup is mounted, and connected to which is said electrode-tool of the machine; a pivot of said traverse passing through its other end, and about which said traverse swings while the article is being cut out, said traverse being driven by said second drive of the tracing system; a third carriage moved by said first drive of the tracing system; a flexible tie by which said third carriage is connected to said first carriage, to transmit motion to the latter; a sine converter located on said third carriage and capable of regulating its angle of inclination, which interacts with said second carriage.