CN2213041Y

CN2213041Y - Multifunctional welding and cutting machine

Info

Publication number: CN2213041Y
Application number: CN 95230563
Authority: CN
Inventors: 孔繁耆
Original assignee: LABOURING SERVICE Co OF FUSHUN COAL TECHNOLOGY SCHOOL
Current assignee: LABOURING SERVICE Co OF FUSHUN COAL TECHNOLOGY SCHOOL
Priority date: 1995-03-16
Filing date: 1995-03-16
Publication date: 1995-11-22
Anticipated expiration: 2005-03-16

Abstract

The utility model discloses a multifunctional welding and cutting machine which integrates AC electric welding, AC spot welding, air plasma cutting, and DC controllable charging function. The utility model is composed of a machine casing, a V-shaped wire connection three-post multiple winding special transformer in the machine and controlling circuits with various functions. The utility model is characterized in that the input coil of the transformer has two sets. The input coil of the transformer can be flexibly exchanged to single-phase or three-phase power supply through a current regulating switch. Meanwhile, the output current can be regulated. The conversion of each function is conducted through a function conversion switch. The utility model can efficiently solve the drawbacks of large equipment investment, low utilization ratio, inconvenient use, etc. Users can conveniently select different functions to carry out production operation on the same equipment.

Description

Multifunctional welding and cutting machine

The utility model belongs to the electromechanical equipment technical field, but is specifically related to a kind of multifunctional welding and cutting machine that electric welding, AC spot-welding, air plasma cutting, four kinds of functions of direct current controlled charging combine in a machine that exchanges.

In the enterprise of general production electronic product, generally adopt special-purpose electric welding machine, mash welder, CUT and dc charging motor, these functions of the equipments are single, concerning medium-sized and small enterprises, because various specialized outputs are little, operation type is many, has above-mentioned four kinds of equipment simultaneously and certainly will cause that equipment investment is big, utilization rate is low, uses disadvantages such as inconvenience.

But the purpose of this utility model provides a kind of the collection and exchanges electric welding, AC spot-welding, air plasma cutting and four kinds of functions of direct current controlled charging in the multifunctional welding and cutting machine of a machine, and the user can select various functions to carry out operation on same equipment easily.

For achieving the above object, multifunctional welding and cutting machine of the present utility model is by many windings of three pillar type special transformer in casing and the casing, various function control circuit plates and hf arc starter constitute, the air filtration pressure-reducing valve is equipped with in the casing back, DC ammeter and D.C. voltmeter are housed on the front panel, voltage-regulation button, gas testing switch, welding current by-pass cock, function switch, cutting control socket, cutting torch joint, public zero line, electrode holder joint, DC charging terminal, casing side are equipped with spot-welding mechanism and spot welding control socket.

Because above-mentioned four kinds of functions are to the different requirements of generator characteristic, its newel core section of many windings of three pillar type special transformer that the utility model adopts is long-pending be two side column sectional areas 1.60--1.73 doubly, the position and the number of turn that each function output winding is installed are fixed, two groups of identical being contained in respectively on two side columns of a umber of turn, wherein one group is left the tap of three places, two groups of cutting windings are contained in respectively on two side columns, axial distance with a winding is 10-15mm, the skin of the cutting winding of charging winding on the side column, leave heat dissipation channel between two-layer winding, the spot welding winding is in 1/2 a ratio winding skin on two side columns respectively, the electric welding winding in the ratio of splitting respectively on side column and newel, the one end joins with the electrode holder joint, the other end and zero line joint join, one end of two groups of cutting windings joins with the ac input end of two groups of rectifier bridges respectively, the other end joins with the welding current by-pass cock, two groups of cutting windings synthesize after the rectification respectively again, make synthetic back DC voltage output inferred-zero, and be separated by 90 ° whenever and located the natural commutation point, cutting loop is not charged when carrying out other function operation.When cutting, by cutting control socket input control signal, make compressed air earlier by the cutting torch ejection, transformer primary power transmission then produces arc cutting after making hf arc starter moment striking again.

When carrying out large-current electric weldering and spot welding, the welding current by-pass cock is adjusted to two groups of windings are connected into the V-type input form, input 380V alternating voltage, when carrying out little electric current electric welding and spot welding, be adjusted to current regulating switch with two groups of windings and be unified into the single-phase operation state, welding current is because the change of magnetic circuit magnetic resistance is adjusted.

When carrying out spot welding, the depression bar that connects by the pedal in the spot-welding mechanism compresses the spot welding gauge tap, controls the break-make of spot welding current through spot welding control socket.

When carrying out DC charging, storage battery the two poles of the earth are joined with this machine charging terminal, make charging voltage and charging current reach required value by the voltage-regulation button.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is the structural representation of the utility model multifunctional welding and cutting machine;

Fig. 2 is the current regulating switch structural representation of the utility model multifunctional welding and cutting machine.

Fig. 3 is the transformer device structure schematic diagram of the utility model multifunctional welding and cutting machine;

Fig. 4 is the electrical schematic diagram of the utility model multifunctional welding and cutting machine;

In structural representation shown in Figure 1, the input port of air filtration pressure-reducing valve 1 and the snorkel of external source of the gas join, delivery outlet links to each other with the cutting torch joint through sebific duct, D.C. voltmeter 2 is housed on the front panel, its the two poles of the earth link to each other with the two poles of the earth of charging output 10 respectively, DC ammeter 3 is connected on the current value when showing charging in the charge circuit, voltage-regulation button 4 is connected in the charging road and is used to regulate charging current, magnetic valve in gas testing switch 5 controllers, cutting control socket 6 joins with the control line of plasma cutting torch, supplying gas when being used to control cutting, striking and sending, the program of control is finished by the control program plate when cutting, specific procedure is to supply gas earlier, after send electric restarting, earlier cut off the power supply for afterwards delaying time when finishing cutting and die, cutting torch joint 7 links to each other with the plasma cutting torch, public zero line joint 8 links to each other with being cut part when cutting, when electric welding, link to each other with welded part, electrode holder joint 9 is used to connect soldering turret, two charging terminals 10 link to each other with the both positive and negative polarity that is recharged storage battery, spot-welding mechanism 13 comprises, following the two poles of the earth and control plug and pedal, top electrode and sole interlock, the control plug links to each other with control socket 14.Function switch 12 is thrown the coaxial linked switch of two-layer equation for four blade four, and each gear is controlled electric welding, spot welding, cutting, charge function respectively.

In structural representation shown in Figure 2, this current regulating switch adopts four blade seven to throw the stacked switch of the coaxial interlock of four laminars, ground floor, the second layer, the 3rd layer is big electric current contact, first room is 1,2,3,4, on 5 gears contact is arranged, 6, contactless on 7 gears, contact 1,2 backs in parallel link to each other with the A.C. contactor B phase contact of power supply output,

contact

3,4,5 respectively with 120 circles of a winding W1,94 circles, 60 circle place taps link to each other, contact 0 joins with one of W2, the second layer, the 3rd layer only has contact on 1 gear, other gear contactless, and contact 1 is with full-wave bridge ZL1, the ac input end of ZL2 links to each other, contact 0 is respectively with sectioned coil W3, the first head of W4 joins, the 4th layer is little current switch, and contact is all arranged on the 1-5 gear, and each contact each corresponding contact of congenerous change-over switch 12 respectively joins.

In the described structural representation of Fig. 3, the width of the newel b of iron core is side column a ₁/ a ₂Width

Doubly, its area also is the side column area

Doubly.Seven groups of windings are housed on the iron core altogether.Wherein a winding has two, i.e. W1, W2, and both numbers of turn are identical, and the W1 winding is counted the 60th circle, 94 circles, 120 circles from end tap, and 3,4,5 gear contacts with the ground floor switch of welding current by-pass cock link to each other respectively.W1 and W2 are contained in a respectively ₁, a ₂On the side column.W3 and W4 are the cutting winding, and the number of turn is identical, and also same W1, W2 leave the 10--15mm spacing on axis direction to be contained in the top with W1, W2 with post.Second layer contact 1 with current regulating switch of W3 links to each other, and of W4 is continuous with the 3rd layer of contact 1.The other end of W3, W4 is respectively with rectified current bridge opening ZL1; The input point of ZL2 links to each other.

W5 is the spot welding winding, totally 6 circles, be at W1 outside forward tightly around 3 circles again in the W2 outside oppositely tightly around 3 circles, leave ventilating duct between same W1, W2, latter two leading-out end outlet from the window of newel both sides, two outlets are at a distance of being 120-140mm.In order to reduce leakage field.

W6 is an electric welding coil, totally 46 circles; Around 24 circles, around 22 circles, a winding becomes the V-type input form when using big electric current gear on newel in the W3 outside, and at this moment every circle voltage is that the every circle voltage of side column is 1.73 times on the newel.

W7 has 20 circles for the charging winding, gets final product around the W4 outside, and two ends link to each other with full-wave bridge ZL3 ac input end respectively.

In the electrical schematic diagram shown in the figure four, the welding current by-pass cock is the coupled switch that four blade seven is thrown four-layer structure, and ground floor is HK1, and the second layer is HK2 ... analogize.W1, W2 do not hold the input C phase of joining.W1* end input A phase, the W2* end is by the HK1 conversion, and input B phase is imported the A phase voltage when 3,4,5 gears when 1,2 gears, but magnitude of voltage is respectively 110V, 86V, 59V, the B phase voltage has been excised, and W3, W4 are connected on the 1st gear contact of HK2, HK3 for cutting winding, arbitrary head, the other end connects on ZL1, the ZL2 full-wave rectification bridge, ZL1, ZL2 are withstand voltage 1000V, 40A full-wave bridge, connect the common zero line terminal after the anodal parallel connection of two bridges, link to each other with the cutting torch joint after the two bridge negative pole parallel connections.The BH loop is high frequency bypass and high-frequency and high-voltage protection loop, is attempted by dc output end.

G is a hf arc starter, by high frequency transformer B3 coupling the striking high-frequency and high-voltage is applied between the both positive and negative polarity of cutting power supply output.

W6 is the electric welding winding, and respectively on a1 side column and newel, the back that joins end to end again links to each other with the electrode holder joint with common zero line in the ratio of splitting.

W5 is the spot welding winding, totally 6 circles, and just around 3 circles, back-roll 3 circles are together in series it middle non junction again on W2 on W1.

W7 is a charge coil, totally 20 circles, and on W4, two joins with ZL3.ZL3 is the 20A full-wave bridge of withstand voltage 〉=50V, and the direct current output cathode connects the IGCT positive pole.The direct current output negative pole connects the charging terminal negative pole, IGCT is controlled by charging panel, DC voltage, the electric current of output are adjustable, B2 is the control power supply transformer, its winding is for exchanging 380V, at the 220V place tap is arranged, this winding is connected on B, C goes up mutually, guarantees the triggering signal and the W7 dc pulse output same-phase of charging control.B2's is secondary for exchanging 15V, and in the tap of 6.3V place, 15V provides the operating voltage of direct-current control voltage and each function control relay to KB1, the KB2 control utmost point after the ZL4 rectification.

C1 is the A.C. contactor of primary side control input voltage, and that utilizes its control special transformer send electricity or outage.C1 is subjected to KB2 control panel and the dual control of function switch.

KB1 is the DC charging control panel among the figure, control charging current and charging voltage.KB2 is the cutting process control panel, and control magnetic valve DF supplies gas in advance, and time-delay is stopped the supple of gas or steam, and control A.C. contactor C1 delays time after ventilation and send electricity, send hf arc starter G time-delay striking of electricity back and striking to stop striking after 1 second automatically.KB2 control A.C. contactor C1 has a power failure immediately when stopping to cut, and controls the magnetic valve time-delay again and stops the supple of gas or steam.

B2 is a control transformer, and primary side 380V inserts the BC phase, and promptly with the W2 homophase, D1-D4 is the function display lamp, and the congenerous change-over switch joins, and welding-cutting machine gives to be put on for what function, and this function display lamp is just bright.

Claims

1, a kind of multifunctional welding and cutting machine, by casing, many windings special transformer, current regulating switch, function switch and function control circuit are formed, it is characterized in that: transformer is the three pillar type multiple secondary winding, the core section of its newel amasss 1.60--1.73 times for the side column sectional area, a winding W1, W2 and sectioned coil W3, W4 is assemblied in respectively on two side columns, spot welding coil W5 presses 1/2 difference of total number of turns with one heart around a winding W1, on the W2, and the induced potential that makes two sub-coils forms spot welding voltage after by 60 ° of phase bit serials, one time winding W1 has three taps with 3 of welding current by-pass cock, 4,5 contacts link to each other, electric welding coil W6 in the ratio of splitting respectively on winding W1 place side column and newel, sectioned coil W3, it is synthetic that W4 carries out after the full-wave rectification carrying out voltage at outlet side respectively, the identical DC voltage of output amplitude after the two coil rectifications, the DC voltage inferred-zero of synthetic back output, two reversal points that differ 90 ° were arranged in 1/2 cycle, and function switch and current regulating switch are equipped with in the casing front.

2, multifunctional welding and cutting machine according to claim 1, it is characterized in that: its current regulating switch is the coupled switch that four blade seven is thrown four-layer structure, wherein ground floor and the 4th layer are that a cutter seven is thrown, and 5 contacts are arranged on the 1--5 gear, and the second layer and the 3rd layer only have contact on 1 gear.

3, multifunctional welding and cutting machine according to claim 1 is characterized in that: spot welding lead-out terminal and spot welding control plug are contained in the casing side, and spot-welding mechanism and welding-cutting machine body can be rolled over dress flexibly.