A full digital inverter welding machine sampling and control system
A technology of inverter welding machine and control system, which is applied in the direction of manufacturing tools, welding equipment, arc welding equipment, etc. It can solve the problems of complex structure, high production cost, and inability to detect welding rod sticking in time, so as to simplify the digital control system, The effect of reducing production cost and ensuring the reliability of welding process
Active Publication Date: 2021-09-17
杭州加裕电子科技有限公司
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[0004] The purpose of the present invention is to provide a full-digital inverter welding machine sampling and control system to solve the problem of high production cost and difficult debugging caused by the complex structure of the existing full-digital inverter welding machine sampling and control system, as well as the inability to find welding rod sticking in time The problem of phenomena
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[0027] In order to make the objectives, technical solutions and advantages of the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely intended to illustrate the invention and are not intended to limit the invention.
[0028] like figure 1 As shown, the embodiment of the present invention discloses a full digital inverter welder sampling and control system including a first rectifier filter module 101, a half bridge inverter module 102, a current transformer 103, a transformer 104, a second rectification. The module 105 and the master module 106, the first rectification filter module 101, the half bridge inverter module 102, the transformer 104, and the second rectifying module 105 are sequentially connected, and the current transformer 103 is connected to the primary coil and half bridge inversion module of the t...
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The invention provides a full digital inverter welding machine sampling and control system, including a first rectification and filtering module, a half-bridge inverter module, a transformer, a second rectification module, a current transformer and a main control module, the first rectification and filtering module , the half-bridge inverter module, the transformer and the second rectifier module are connected sequentially, the current transformer is connected between the primary coil of the transformer and the half-bridge inverter module, and the main control module includes a single-chip microcomputer, a signal preprocessing circuit, and a first IGBT drive circuit and the second IGBT drive circuit, the single-chip microcomputer is equipped with a PWM register; the current transformer is used to collect the current at the primary coil end of the transformer, and the signal preprocessing circuit filters the above-mentioned current, and the main control module is based on the current obtained after filtering and the coil turns of the transformer Compared, the current output current of the inverter welding machine is obtained, and the current output current is controlled by PID according to the preset current required for welding; the invention ensures the reliability of the welding process of the inverter welding machine and reduces the production cost.
Description
Technical field [0001] The present invention relates to the field of inverter welding machine control technology, and more particularly to a full digital reverse welder sampling and control system. Background technique [0002] The existing control scheme of the inverter welder is mainly divided into two types of analog circuit control or digital circuit control, and the analog circuit control method is generally composed of analog device and a discrete device of logic devices. The method is large, and the structure is complex. Disadvantages, as the function of the inverter welder is increasing, the volume and structural complexity of the control circuit are also increasing, which leads to a significant increase in the failure of the control circuit, and the cost is higher during the production process, and the debugging is cumbersome. [0003] The existing digital circuit control method typically needs to collect current signals and voltage signals with multiple current transfor...
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IPC IPC(8): B23K9/10
CPCB23K9/10B23K9/1056
Inventor 郭华
Owner 杭州加裕电子科技有限公司