CN203566067U - Low-cost point welding machine - Google Patents

Abstract

The utility model discloses a low-cost point welding machine, which comprises an alternating-current power supply, a button switch, a first transformer, a second transformer, a first diode, a second diode, a third diode, a fourth diode, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, an integrated voltage stabilizing circuit, a first light emitting diode, a second light emitting diode, a potentiometer, a time base integrator, a solid-state relay and a welding rod holder, wherein the time base integrator serves as a multivibrator, controls the on or off of the solid-state relay to control the second transformer to supply power to the welding rod holder. When the potential of the trigger end and the threshold input end of the time base integrator is 2/3 of supply voltage, the solid-state relay is switched on, a secondary coil of the second transformer senses voltage, and the second transformer supplies power to the welding rod holder; the point welding machine has the characteristics of stable start, simple structure, low manufacturing cost and low energy consumption.

Description

A kind of low-cost mash welder

Technical field

The utility model relates to a kind of mash welder, relates in particular to a kind of low-cost mash welder.

Background technology

Mash welder system adopts the principle of two-sided two point overcurrent welding, during work, two electrode pressurization workpiece make double layer of metal under the pressure of two electrodes, form certain contact resistance, and welding current forms the thermal welding of moment when another electrode at 2 contact resistance points from an electrode stream, and welding current moment from another electrode along two part flows so far electrode form loop, do not injure the internal structure of welded piece, traditional mash welder starts not steady, and has complex structure, the expensive and high problem that consumes energy.

Utility model content

The purpose of this utility model provides a kind of low-cost mash welder with regard to being in order to address the above problem.

In order to achieve the above object, the utility model has adopted following technical scheme:

A kind of low-cost mash welder, comprise AC power, press button, the first transformer, the second transformer, the first diode to the four diodes, the first electric capacity to the four electric capacity, the first resistance to the five resistance, integrated stable voltage circuit, the first Light-Emitting Diode, the second Light-Emitting Diode, potentiometer, time basis set grow up to be a useful person, solid-state relay and electrode holder, the first end of described AC power is connected with the first end of described press button, the second end of described AC power is connected with the first end of the primary coil of described the first transformer respectively with the first end of the primary coil of described the second transformer and is connected, the second end of described press button respectively with the second end of the primary coil of described the first transformer, described the 5th first end of resistance and the cathode output end of described solid-state relay are connected, the cathode output end of described solid-state relay is connected with the second end of the primary coil of described the second transformer, the first end of the secondary coil of described the first transformer is connected with the positive pole of described the 4th diode with the negative pole of described the first diode, the second end of the secondary coil of described the first transformer is connected with the positive pole of described the 3rd diode with the negative pole of described the second diode respectively, the positive pole of described the first diode respectively with the positive pole of described the second diode, the first end of described the first resistance, the earth terminal of described integrated stable voltage circuit, the second end of described the second resistance, the negative pole of described the first Light-Emitting Diode, the first end of described the 3rd electric capacity, the power-that when described, basis set is grown up to be a useful person is extreme, ground connection after described the 4th first end of electric capacity and the cathode output end of described solid-state relay are connected, the negative pole of described the 4th diode respectively with the negative pole of described the 3rd diode, the input of described integrated stable voltage circuit is connected with the first end of described the first electric capacity, the output of described integrated stable voltage circuit respectively with the first end of described the second electric capacity, the first end of described the 3rd resistance, the first end of described the 4th resistance, the reset terminal that the power positive end that when described, basis set is grown up to be a useful person basis set when described is grown up to be a useful person is connected, the second end of described the first electric capacity is connected with the second end of described the first resistance, the second end of described the second electric capacity is connected with the second end of described the second resistance, the second end of described the 3rd resistance is connected with the positive pole of described the first Light-Emitting Diode, the second end of described the 4th resistance respectively with the first end of described potentiometer, the discharge end that the sliding end of described potentiometer basis set when described is grown up to be a useful person is connected, the second end of described potentiometer threshold value input that basis set is grown up to be a useful person when described respectively, the trigger end that when described, basis set is grown up to be a useful person is connected with the second end of described the 3rd electric capacity, the voltage controling end that when described, basis set is grown up to be a useful person is connected with the second end of described the 4th electric capacity, the output that when described, basis set is grown up to be a useful person is connected with the negative pole of described the second Light-Emitting Diode and the electrode input end of described solid-state relay respectively, the first end of the secondary coil of described the second transformer is connected with described electrode holder, the second end of the secondary coil of described the second transformer is connected with weldment.

The beneficial effects of the utility model are:

The utility model is a kind of low-cost mash welder, the time basis set of this mash welder is grown up to be a useful person and can be controlled the conducting of solid-state relay and close, the trigger end that basis set was grown up to be a useful person at that time and time the basis set threshold value input of growing up to be a useful person while being low level, the 4th resistance and potentiometer are to the 3rd capacitor charging, the trigger end that basis set was grown up to be a useful person at that time and time the basis set threshold value input of growing up to be a useful person current potential reach three of supply voltage/bis-o'clock, solid-state relay conducting, the voltage of the primary coil of the second transformer changes, the secondary coil of the second transformer senses voltage, and supply with electrode holder, this mash welder has startup steadily, simple in structure, the feature that cost is low and power consumption is low.

Accompanying drawing explanation

Fig. 1 is the circuit diagram of a kind of low-cost mash welder of the utility model.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail:

As shown in Figure 1, a kind of low-cost mash welder of the utility model, comprise AC power AC, press button S, the first transformer T1, the second transformer T2, the first diode D1 to the four diode D4, the first capacitor C 1 is to the 4th capacitor C 4, the first resistance R 1 is to the 5th resistance R 5, integrated stable voltage circuit IC1, the first Light-Emitting Diode LED1, the second Light-Emitting Diode LED2, potentiometer RP, time the basis set IC2 that grows up to be a useful person, solid-state relay SSR and electrode holder Q, the first end of AC power AC is connected with the first end of press button S, the second end of AC power AC is connected with the first end of the primary coil of the first transformer T1 respectively with the first end of the primary coil of the second transformer T2 and is connected, the second end of press button S respectively with the second end of the primary coil of the first transformer T1, the first end of the 5th resistance R 5 is connected with the cathode output end of solid-state relay SSR, the cathode output end of solid-state relay SSR is connected with the second end of the primary coil of the second transformer T2, the first end of the secondary coil of the first transformer T1 is connected with the positive pole of the 4th diode D4 with the negative pole of the first diode D1, the second end of the secondary coil of the first transformer T1 is connected with the positive pole of the 3rd diode D3 with the negative pole of the second diode D2 respectively, the positive pole of the first diode D1 respectively with the positive pole of the second diode D2, the first end of the first resistance R 1, the earth terminal of integrated stable voltage circuit IC1, the second end of the second resistance R 2, the negative pole of the first Light-Emitting Diode LED1, the first end of the 3rd capacitor C 3, time basis set the grow up to be a useful person power-of IC2 extreme, ground connection after the cathode output end of the first end of the 4th capacitor C 4 and solid-state relay SSR is connected, the negative pole of the 4th diode D4 respectively with the negative pole of the 3rd diode D3, the input of integrated stable voltage circuit IC1 is connected with the first end of the first capacitor C 1, the output of integrated stable voltage circuit IC1 respectively with the first end of the second capacitor C 2, the first end of the 3rd resistance R 3, the first end of the 4th resistance R 4, time basis set grow up to be a useful person IC2 power positive end with time basis set the grow up to be a useful person reset terminal of IC2 be connected, the second end of the first capacitor C 1 is connected with the second end of the first resistance R 1, the second end of the second capacitor C 2 is connected with the second end of the second resistance R 2, the second end of the 3rd resistance R 3 is connected with the positive pole of the first Light-Emitting Diode LED1, the second end of the 4th resistance R 4 respectively with the first end of potentiometer RP, the sliding end of potentiometer RP with time basis set the grow up to be a useful person discharge end of IC2 be connected, the second end of potentiometer RP respectively with time basis set the grow up to be a useful person threshold value input of IC2, time basis set the grow up to be a useful person trigger end of IC2 be connected with the second end of the 3rd capacitor C 3, time basis set the grow up to be a useful person voltage controling end of IC2 be connected with the second end of the 4th capacitor C 4, time basis set the grow up to be a useful person output of IC2 be connected with the electrode input end of solid-state relay SSR with the negative pole of the second Light-Emitting Diode LED2 respectively, the first end of the secondary coil of the second transformer T2 is connected with electrode holder Q, the second end of the secondary coil of the second transformer T2 is connected with weldment.

Operation principle of the present utility model is as follows:

AC power AC is first through the first transformer T1 output 15V alternating voltage, the 12V working power of this circuit is provided by integrated stable voltage circuit IC1, time basis set grow up to be a useful person IC2 as multivibrator, be used for controlling the conducting of solid-state relay SSR and closing, at that time basis set grow up to be a useful person IC2 trigger end and time basis set grow up to be a useful person the threshold value input of IC2 while being low level, in the time of, the grow up to be a useful person output of IC2 of basis set is high level, 12V power supply charges to the 3rd capacitor C 3 through the 4th resistance R 4 and potentiometer RP, at that time basis set grow up to be a useful person IC2 trigger end and time basis set the grow up to be a useful person current potential of threshold value input of IC2 reach three of supply voltage/bis-o'clock, time basis set the grow up to be a useful person level of output of IC2 by hypermutation, be low, the second LED 2 conductings are luminous, time basis set the grow up to be a useful person output of IC2 control solid-state relay SSR conducting, trigger the second transformer T2 conducting, the voltage that makes to be added in the primary coil of the second transformer T2 changes, the secondary coil of the second transformer T2 senses voltage, and supply with electrode holder.

Claims (1)

1. a low-cost mash welder, it is characterized in that: comprise AC power, press button, the first transformer, the second transformer, the first diode to the four diodes, the first electric capacity to the four electric capacity, the first resistance to the five resistance, integrated stable voltage circuit, the first Light-Emitting Diode, the second Light-Emitting Diode, potentiometer, time basis set grow up to be a useful person, solid-state relay and electrode holder, the first end of described AC power is connected with the first end of described press button, the second end of described AC power is connected with the first end of the primary coil of described the first transformer respectively with the first end of the primary coil of described the second transformer and is connected, the second end of described press button respectively with the second end of the primary coil of described the first transformer, described the 5th first end of resistance and the cathode output end of described solid-state relay are connected, the cathode output end of described solid-state relay is connected with the second end of the primary coil of described the second transformer, the first end of the secondary coil of described the first transformer is connected with the positive pole of described the 4th diode with the negative pole of described the first diode, the second end of the secondary coil of described the first transformer is connected with the positive pole of described the 3rd diode with the negative pole of described the second diode respectively, the positive pole of described the first diode respectively with the positive pole of described the second diode, the first end of described the first resistance, the earth terminal of described integrated stable voltage circuit, the second end of described the second resistance, the negative pole of described the first Light-Emitting Diode, the first end of described the 3rd electric capacity, the power-that when described, basis set is grown up to be a useful person is extreme, ground connection after described the 4th first end of electric capacity and the cathode output end of described solid-state relay are connected, the negative pole of described the 4th diode respectively with the negative pole of described the 3rd diode, the input of described integrated stable voltage circuit is connected with the first end of described the first electric capacity, the output of described integrated stable voltage circuit respectively with the first end of described the second electric capacity, the first end of described the 3rd resistance, the first end of described the 4th resistance, the reset terminal that the power positive end that when described, basis set is grown up to be a useful person basis set when described is grown up to be a useful person is connected, the second end of described the first electric capacity is connected with the second end of described the first resistance, the second end of described the second electric capacity is connected with the second end of described the second resistance, the second end of described the 3rd resistance is connected with the positive pole of described the first Light-Emitting Diode, the second end of described the 4th resistance respectively with the first end of described potentiometer, the discharge end that the sliding end of described potentiometer basis set when described is grown up to be a useful person is connected, the second end of described potentiometer threshold value input that basis set is grown up to be a useful person when described respectively, the trigger end that when described, basis set is grown up to be a useful person is connected with the second end of described the 3rd electric capacity, the voltage controling end that when described, basis set is grown up to be a useful person is connected with the second end of described the 4th electric capacity, the output that when described, basis set is grown up to be a useful person is connected with the negative pole of described the second Light-Emitting Diode and the electrode input end of described solid-state relay respectively, the first end of the secondary coil of described the second transformer is connected with described electrode holder, the second end of the secondary coil of described the second transformer is connected with weldment.

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