Aluminum alloy digital welding machine with smooth transition double-pulse parameters
A smooth transition and double-pulse technology, which is applied in the field of aluminum alloy digital welding machine and double-pulse aluminum alloy digital welding machine, can solve the problems of fast heat dissipation of aluminum alloy, unstable arc state, and unstable arc length, etc., to achieve stable welding , Improve welding efficiency and reduce workload
Active Publication Date: 2014-02-26
EAST GRP CO LTD
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Problems solved by technology
However, domestic manufacturers are still exploring the dual-pulse welding technology of aluminum alloys, and have not yet made a substantial breakthrough, mainly because the internal regularity has not been found in the design of double-pulse parameters.
The reason is mainly because there are many welding parameters of the double pulse, and a large number of process tests are required for proper matching between them, while the aluminum alloy dissipates heat quickly, and the welding process is extremely unstable; in addition, the arc length is unstable, and the welding wire is easy to burn back. Short circuit, low melting point and easy evaporation of welding wire lead to very unstable arc state
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[0036] The present invention will be further explained below in conjunction with the drawings.
[0037] This embodiment provides an aluminum alloy digital welding machine with smooth transition double pulse parameters, including a power main circuit, a main control motherboard, a main control MCU, a wire feed drive circuit, an ARM control human-machine interaction system, a hardware PID controller, and a hardware PID The controller, wire feed drive circuit, and main control MCU are set on the main control motherboard, the wire feed drive circuit is connected to the main control MCU, the hardware PID controller is connected to the control port of the main control MCU and the power main circuit, and the power main circuit current input The terminal is connected with the mains, the current output terminal of the power main circuit is connected with the welding load, and the ARM control human-computer interaction system is connected with the main control MCU. The invention adopts MCU...
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The invention discloses an aluminum alloy digital welding machine with smooth transition double-pulse parameters, which comprises a power main circuit, a main control mother board, a main control micro controller unit (MCU), a wire feed driving circuit, an advanced RISC machine (ARM) controlled human-machine interactive system and a hardware proportion integration differentiation (PID) controller, wherein the hardware PID controller, the wire feed driving circuit and the main control MCU are arranged on the main control mother board; the wire feed driving circuit is connected with the main control MCU; the hardware PID controller is connected with the main control MCU and the control port of the power main circuit; the current input end of the power main circuit is connected with the utility power; and the current output end of the power main circuit is connected with a welding load. The MCU and the ARM are used as control cores, pulse width modulation (PWM) is generated through the hardware PID controller to realize driving control of the main circuit, the work load of the main control MCU is reduced, the main control MCU quickly and stably completes welding process flow control and double-pulse waveform database management task, the welding efficiency is improved, and stable welding of aluminum alloy from low current to high current is realized.
Description
Technical field [0001] The invention relates to the technical field of dual-pulse aluminum alloy digital welding machines, in particular to an aluminum alloy digital welding machine with smooth transition double-pulse parameters. Background technique [0002] With the development of power electronics and digital technology, high-performance single-chip microcomputers (MCUs) have made epoch-making breakthroughs in terms of function, processing speed and processing capabilities. The theory and implementation of digital signal processing have achieved unprecedented development and become today’s One of the fastest growing disciplines. After the high-end single-chip MCU is successfully introduced into the field of welding power control, it provides the possibility to further improve the performance of the welding process and provides an opportunity for trying new welding processes. With its stability, repeatability, real-time digital signal processing, flexible programming, and larg...
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IPC IPC(8): B23K9/09B23K9/095
Inventor 薛家祥陈小峰林放徐海波崔龙彬
Owner EAST GRP CO LTD