Spark erosion machine with automatic control - has optical reading head to control cutting tool through electronic circuit

• Main Author: V. S. VASILIEV, A. L. LIVSHITS, V. E. POLOTSKY ET Y. I. ZLATKIN
• Format: Patent
• Language: English; French
• Published: 26.08.1977
• Subjects: COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL; TRANSPORTING; WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OFELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKESTHE PLACE OF A TOOL

The spark erosion machine is guided by an optical reading head mounted on a slide which can be moved in two directions by motors. A feed back signal from the reading head is transmitted to the amplifier which transmits corresponding signals to the store and the coincidence circuit. The store also receives signals from the impulse generators and switches. Signals from the coincidence circuit are transmitted through the amplifiers to the motors which guide the tool and to the motors which guide the optical reading head. If the reading head departs from the outline of the template, a signal is generated which corrects the position of the reading head and the tool.