CN201023171Y

CN201023171Y - Double-pulse DC electron point welding machine

Info

Publication number: CN201023171Y
Application number: CNU2007201542652U
Authority: CN
Inventors: 杨仕郎
Original assignee: ZHUHAI MICWELD ELECTRONIC INDUSTRY Co Ltd
Current assignee: ZHUHAI MICWELD ELECTRONIC INDUSTRY Co Ltd
Priority date: 2007-05-15
Filing date: 2007-05-15
Publication date: 2008-02-20
Anticipated expiration: 2017-05-15

Abstract

The utility model provides a double-pulse direct current electronic spot welder with a liquid crystal display screen. The spot welder comprises a double-pulse direct current spot welder transformer, a singlechip automatic control circuit, a welding head, a power output circuit, a power output detection circuit, an analogy to digital conversion circuit, and a liquid crystal display screen, wherein the power output circuit is used to export double pulses which are put out by the double-pulse direct current spot welder transformer, the power output detection circuit is used to detect the double pulses which are exported by the power output circuit, the analogy to digital conversion circuit is used to transform the detected double pulses into digital signals which are then sent to the singlechip automatic control circuit for being processed, the liquid crystal display screen is activated by the processed digital signals, and the liquid crystal display screen is used to display the voltage value, time value and frequency of double-pulse output. The direct current double-pulse electronic spot welder has the advantages of high power output precision, excellent repeatability, strong maneuverability and the like, and is a perfect electronic spot welder.

Description

A kind of dipulse DC electronic mash welder

Technical field

The present invention relates to a kind of dipulse DC electronic mash welder, especially a kind of dipulse DC electronic mash welder that has LCDs belongs to field of welding devices.

Background technology

The DC electronic mash welder is the special welding equipment of electronics industry, microelectronics industry welding enamel-covered wire, sheet metal and chip manufacturing.It is widely used in the manufacturing aspect of various band small coil electronic devices and components such as SMT Inductor, SMD transformer, high frequency communication element, induction type chip card, miniature news Chinese percussion instrument, clock and watch coil, thick film circuit, module.Along with the growing and continuous progress in science and technology of mechanical industry, more and more higher to the specification requirement of needs welding, welding effect is directly connected to the quality and benefits of product.

But existing direct current dipulse electronic spot welder voltage pulse output, electric current do not have visuality, have greatly influenced welding the control of whole process.Patent application publication number CN2481446Y and patent application publication number CN1318449A disclose a kind of mash welder that can directly weld enamel-covered wire, belong to the small-power electric capacity energy storage type resistance electric welding machine with regulation voltage control size of current.It is made up of main frame, head and soldering tip three parts.Main frame is made up of impulse amplitude prewired circuit, pulse width prewired circuit, pulse width timing circuit, drive circuit, power switch circuit, feedback circuit, low-voltage power circuit, high-voltage power circuit and high-voltage control circuit.General resistance electric welding machine all is provided with the adjusting device that can regulate welding current or these three welding parameters of weldingvoltage, weld interval and welding pressure, and need be by means of scaling powder and scolding tin.When carrying out the electric resistance welding welding, must select electrode according to material, line footpath and the physical characteristic etc. of welded part, and then configure welding current or these three welding parameters of weldingvoltage, weld interval and welding pressure, very inconvenient to the operation and the control of welding.

Summary of the invention

In order to overcome the above-mentioned defective of direct current dipulse electronic spot welder, the utility model provides a kind of direct current dipulse electronic spot welder that has LCDs.It comprises dipulse dc point welding machine transformer, the single-chip microcomputer automatic control circuit, soldering tip, power output circuit, the power output detection circuit, mould/number conversion circuit and LCDs, wherein said power output circuit is used to export the dipulse of dipulse dc point welding machine transformer output, described power output detection circuit is used for the dipulse of detection power output circuit output, described mould/number conversion circuit is used for detected dipulse converted to and send after the data signal single-chip microcomputer automatic control circuit to handle, rear drive LCDs, described LCDs are used to show the magnitude of voltage of dipulse output, time value and pulse output number of times.Wherein, dipulse dc point welding machine transformer comprises rectification circuit, direct current voltage reulation mu balanced circuit, direct current self adaptation voltage stabilizing output driving circuit, dipulse drive circuit, power switch circuit and pulse transformer, is used to export independent adjustable dipulse.Dipulse is independent adjustable in welding process, and paint removal is responsible in a pulse, and another pulse is responsible for finishing welding by big electric current in welded piece.

Direct current dipulse electronic spot welder described in the utility model has power output accuracy height, good reproducibility, and advantage such as can be handling strong is a kind of desirable electronic spot welder.

Description of drawings

Fig. 1 is according to the dipulse electronic spot welder structure chart that has LCDs of the present utility model;

Fig. 2 is the structure chart of dipulse dc point welding machine transformer.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further detailed.

As shown in Figure 1, the dipulse dc point welding machine that provides of the utility model comprises dipulse dc point welding machine transformer 1, single-chip microcomputer automatic control circuit 5, soldering tip 7, power output circuit 2, power output detection circuit 3, mould/number conversion circuit 4 and LCDs 6.Power output circuit 2 is used to export the dipulse power of dipulse dc point welding machine transformer output.The dipulse of power output detection circuit 3 detection power output circuits 2 outputs.Mould/number conversion circuit 4 send single-chip microcomputer automatic control circuit 5 to handle rear drive LCDs 6 after converting detected dipulse to data signal.LCDs 6 is according to magnitude of voltage, time value and the pulse output number of times of the corresponding dipulse output of the indicated number of single-chip microcomputer automatic control circuit.Wherein, dipulse dc point welding machine transformer 1 comprises rectification circuit 13, direct current voltage reulation mu balanced circuit 12, direct current self adaptation voltage stabilizing output driving circuit 11, dipulse drive circuit 14, power switch circuit 15 and pulse transformer 16.Dipulse drive circuit 14 driving power on-off circuits 15 form independent adjustable dipulse output at the secondary of pulse transformer 16.Two pulses independences are adjustable in welding process, and paint removal is responsible in a pulse, and another pulse is responsible for finishing welding by big electric current in welded piece.

Should be pointed out that above according to functional block description embodiments of the invention.According to the functional description of these pieces that provide above, for the technical staff in design of electronic devices field, the embodiment that how to utilize known electronic unit to make these pieces is conspicuous.Therefore do not provide the detailed structure of the content of described functional block.

Claims

1. dipulse DC electronic mash welder, comprise dipulse dc point welding machine transformer, the single-chip microcomputer automatic control circuit, soldering tip, it is characterized in that also comprising power output circuit, the power output detection circuit, mould/number conversion circuit and LCDs, wherein said power output circuit is used to export the dipulse of dipulse dc point welding machine transformer output, described power output detection circuit is used for the dipulse of detection power output circuit output, described mould/number conversion circuit is used for detected dipulse converted to and send after the data signal single-chip microcomputer automatic control circuit to handle, rear drive LCDs, described LCDs are used to show the magnitude of voltage of dipulse output, time value and pulse output number of times.