Capacitor charge-discharge pulse digital control type electric spark depositing surfacing welding power supply

Abstract

The invention relates to a capacitor charge-discharge pulse digital control type electric spark depositing surfacing welding power supply which belongs to precise repairing and surface strengthening technologies in the regeneration manufacturing field; and the power supply comprises a microprocessor, an alternating-current voltage regulating circuit, a rectifying and filtering circuit, a chargingand driving circuit, a charging voltage detection circuit, a discharging and driving circuit and the like. The power supply can be used for carrying out the stepless regulation on the voltage of a discharging capacitor, also can realize the stepless regulation of discharging energy and discharging frequency and can meet the requirements of different technological conditions; and when the chargingpulse and the discharging pulse of the capacitor are under the control of the microcomputer, the charging process and the discharging process of the capacitor are carried out alternatively so that the charge-discharge of the capacitor still can be ensured and the electric sparks are generated even when electrodes and workpieces are short-circuited, and therefore the depositing surfacing welding effect of the power supply is improved.

Description

technical field [0001] The invention relates to an electric spark deposition surfacing technology, which belongs to the precision repair and surface strengthening technology in the field of regenerative manufacturing, in particular to an electric spark deposition surfacing power supply with digital control of capacitor charging and discharging pulses. Background technique [0002] The working principle of EDM surfacing technology is: when the electrode is in contact with the workpiece, the circuit is in a short-circuit state, the power supply outputs a discharge pulse, and a large current density is generated in the small area of ​​the contact point between the electrode and the workpiece to make the contact point The electrode and the workpiece material at the place melt and gasify instantly, triggering spark discharge, and the molten material of the electrode transitions to the surface of the workpiece. If the electrode continues to approach the workpiece, the workpiece wil...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an electric spark deposition surfacing welding power supply that can digitally control the charging process and discharging process of the capacitor, so as to solve the problem that the existing power supply is difficult to adjust the charging voltage and cannot accurately control the discharge energy

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