CN86209790U - Ac storage mixed gantry breakeven welder - Google Patents
Ac storage mixed gantry breakeven welderInfo
- Publication number
- CN86209790U CN86209790U CN 86209790 CN86209790U CN86209790U CN 86209790 U CN86209790 U CN 86209790U CN 86209790 CN86209790 CN 86209790 CN 86209790 U CN86209790 U CN 86209790U CN 86209790 U CN86209790 U CN 86209790U
- Authority
- CN
- China
- Prior art keywords
- spot welding
- energy
- charging
- welding machine
- gantry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Landscapes
- Arc Welding Control (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
The utility model provides a novel spot welding machine for the elevator manufacturing, which can weld general steel plates, organic coating steel plates, and stainless steel plates in a non-injury way. The spot welding machine is characterized in that a capacitance energy-storing power supply and an industrial frequency AC power supply are adopted by the same spot welding machine; also, the problem of the DC magnetization in the AC energy storage composite design is solved; meanwhile, the spot welding machine can make a direct welding as well as an indirect spot welding. A suspended type electrode can make the spot welding to weldments at optional positions at the range of 2400*1200 in plane dimension; therefore, the adjustment of appropriate switches is just needed, the parts processed by the materials can be welded in the non-injury way.
Description
The utility model belongs to the welding equipment category.More particularly, be the novel point welding machine that a kind of not damaged welds general steel plate, steel plate with organic coating and corrosion resistant plate---exchange the harmless mash welder in the hybrid gantry of energy storage.
In existing manufacturing industry of the lift, parts such as the gate of elevator, sedan-chair top, Room door are arc welding by hand all.Interchange gantry mash welder that Italy CEMSA company makes can carry out direct welding to the common low carbon steel plate in certain plane.Its welding quality and efficient are all than good with artificial manual metal-arc welding.But because this machine has only industrial-frequency alternating current source apparatus and direct welding electrode.At present, can't solve the harmless spot welding problem of single face of stainless steel and steel plate with organic coating.The AC resistance welding machine is owing to be subjected to the restriction of grid power, and its welding current can not be chosen too greatly.Under the certain situation of welding circuit resistance, have only suitable prolongation weld interval, just can make solder joint obtain enough welding heat energy.Like this, will cause the heat affected area of solder joint excessive, with the steel plate of this softer standard welding machine spot welding, its solder joint is two-sided all the vestige of more significantly burning.Abroad, as Japanese ORIGIN(Ao Lijin) Electric Co., Ltd, NATICNAL(Panasonic) Industry Co., Ltd, Britain CROMP(carat nurse is general) etc. company all adopt the condenser discharge welder of hard specification characteristics to come soldering stainless steel plate and steel plate with organic coating.The discharge pulse waveform of storage capacitor is steeper, and the electric current that sparks is big, prolongs that to hold width shorter, and electrical network is not had impact, and this is that power frequency AC is incomparable.But this welding machine cost height, maintenance complexity, capacitor is easily aging.This produces raw material mainly based on the factory of low carbon steel plate to domestic manufacturing industry of the lift, and it is uneconomic selecting single accumulation power supply welding machine for use.
The purpose of this utility model is: on the design basis of primary circuit, must not increase electronic devices and components, the charge and discharge electric current that just can realize energy-storage capacitor alternating current is in the opposite direction crossed the primary coil of welding transformer.Thereby overcome the iron core dc magnetization problem of welding transformer.
Specific design scheme of the present utility model is: the hybrid gantry of this interchange energy storage can't harm mash welder, comprises interchange, capacitor energy-storing power supply and control circuit.Welding machine is in welding during steel plate with organic coating, the coexist homonymy (nothing is coated with laminated) of steel plate of two electrodes, and in this power supply, the positive pole of energy-storage capacitor C is connected the mid point that the charging controllable silicon is connected in series with discharging thyristor, and negative pole is connected an end of welding transformer.
Its charging transformer has adopted the branch magnetic saturation transformer with steep drop characteristic.
In AC control circuit, adopted the integrated hybrid AC cycle sampling of transistor frequency division decoding circuit to control weld interval.Simultaneously, on its output and connect the time relay circuit is carried out secondary control.
Harmless mash welder provided by the utility model has shown its superiority in practice.When capacitor C charging beginning, the charging controllable silicon SCR
1Conducting, discharging thyristor SCR
2End.Welding transformer primary coil L
1That pass through is the charging current I of C
1, it is directed downwards.When the C charging reaches rated value, SCR
1End, charging stops.If will weld SCR
2Conducting, C passes through SCR
2At L
1Last formation discharge loop, L
1Discharge current I by C
2, its direction upwards.Like this, during welding machine work, the charging current I of capacitor C
1With discharge current I
2Pass through welding transformer B with opposite direction
2Primary coil L
1Thereby, overcome welding transformer iron core magnetization in percussion welder effectively.
Further describe with accompanying drawing below: in the charging circuit of energy-storage capacitor C, DR is a fastp-acting fuse, and DL is the rectification sedan-chair.In the utility model design, adopted a branch magnetic saturation transformer with steep drop characteristic to limit the charging current of C, when C began to charge, the both end voltage of C was zero, charging current is equivalent to the short circuit current of dc source DL.Because B
1Have steep drop characteristic, secondly pole tension descends immediately, and output current is limited in definite rated value, and along with the charging interval prolongs, the both end voltage of C rises, and charging current reduces.For preventing discharging thyristor SCR
2When damage or generation misoperation, SCR
2Cross thermal breakdown, DR burns immediately fast, with the components and parts in the holding circuit.
The purpose of the utility model research, be not weld steel plate with organic coating and corrosion resistant plate with damaging, and above-mentioned two kinds of materials have very high sensitiveness to welding temperature, when surpassed the parameter of technological requirement weld interval, these weldments will sustain damage so that burn, the parameter such as its weld interval of welding machine, electric current that this just requires to weld these materials should have very high stability.The AC control circuit of the utility model design, as accompanying drawing one " shown in the control circuit figure ", industrial frequency AC signalling means h holds input.Through transistor BG
1Amplify the back by the decoding of integrated package G frequency division, dial switch k
1, k
2Select to transistor B
2Output F, thereby the ON time of the alternating-current switch bidirectional triode thyristor of control welding machine, because during welding, the welding transformer short circuit current is very big, electrical network is caused that interference causes control circuit out of control, at output also and connect a time relay sj and carry out two utmost points control, make and all be no more than weld interval of welding machine the standard parameter that causes steel plate with organic coating or the damage of corrosion resistant plate face coat easily.
In the utility model, shown in accompanying drawing two " main circuit diagram ", charging transformer B
1With capacitor C have related parameter as follows:
Transformer turn ratio 2:3,220 volts of input voltages, output voltage are 330 volts, secondary short circuited electric current 20A, elementary input current is 30A when secondary short circuited.
450 volts of capacitor rated voltages, capacity are 360 * 470 μ F.
Claims (3)
1, the harmless mash welder in the hybrid gantry of a kind of interchange energy storage, it comprises interchange, capacitor energy-storing power supply and control circuit, it is characterized in that: the positive pole of energy-storage capacitor C is connected the mid point that the charging controllable silicon is connected in series with discharging thyristor, negative pole is connected an end of welding transformer, makes the charging and discharging currents of energy-storage capacitor cross the primary coil of welding transformer with opposite direction alternating current.
2, the harmless mash welder in the hybrid gantry of interchange energy storage according to claim 1, it is characterized in that: in charging circuit, the charge power supply transformer adopting is the branch magnetic saturation transformer with steep drop characteristic.
3, the harmless mash welder in the hybrid gantry of interchange energy storage according to claim 1, it is characterized in that: adopt the integrated hybrid AC cycle sampling of transistor frequency division decoding circuit to control weld interval in its AC control circuit, simultaneously, on its output and connect the time relay circuit is carried out secondary control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86209790 CN86209790U (en) | 1986-12-03 | 1986-12-03 | Ac storage mixed gantry breakeven welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86209790 CN86209790U (en) | 1986-12-03 | 1986-12-03 | Ac storage mixed gantry breakeven welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86209790U true CN86209790U (en) | 1987-12-16 |
Family
ID=4811609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86209790 Ceased CN86209790U (en) | 1986-12-03 | 1986-12-03 | Ac storage mixed gantry breakeven welder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86209790U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350581A (en) * | 2011-09-26 | 2012-02-15 | 广州（从化）亨龙机电制造实业有限公司 | Medium-voltage capacitive energy storage welding machine |
| CN103949785A (en) * | 2014-04-04 | 2014-07-30 | 江门市保值久机电有限公司 | Multifunctional stud point welding machine |
| CN105618921A (en) * | 2016-01-21 | 2016-06-01 | 陕西理工学院 | Miniature capacitive energy storage welding circuit |
| CN111230257A (en) * | 2020-01-20 | 2020-06-05 | 北京工业大学 | Nondestructive welding process method for color steel plate profile coating |
-
1986
- 1986-12-03 CN CN 86209790 patent/CN86209790U/en not_active Ceased
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350581A (en) * | 2011-09-26 | 2012-02-15 | 广州（从化）亨龙机电制造实业有限公司 | Medium-voltage capacitive energy storage welding machine |
| CN102350581B (en) * | 2011-09-26 | 2013-07-17 | 广州（从化）亨龙机电制造实业有限公司 | Medium-voltage capacitive energy storage welding machine |
| CN103949785A (en) * | 2014-04-04 | 2014-07-30 | 江门市保值久机电有限公司 | Multifunctional stud point welding machine |
| CN103949785B (en) * | 2014-04-04 | 2016-02-10 | 江门市保值久机电有限公司 | One is multi-functional plants nail mash welder |
| CN105618921A (en) * | 2016-01-21 | 2016-06-01 | 陕西理工学院 | Miniature capacitive energy storage welding circuit |
| CN111230257A (en) * | 2020-01-20 | 2020-06-05 | 北京工业大学 | Nondestructive welding process method for color steel plate profile coating |
| CN111230257B (en) * | 2020-01-20 | 2021-10-01 | 北京工业大学 | Nondestructive welding process method for color steel plate profile coating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210080919U (en) | High-low frequency energy conversion and composite circuit of fast-frequency pulse TIG welding power supply | |
| US5583883A (en) | Electric arc-furnace stabilization using voltage pulse injection | |
| CN202053010U (en) | IGBT digital and multifunctional gas shielded arc-welding soft switch inversion power supply | |
| CN86209790U (en) | Ac storage mixed gantry breakeven welder | |
| CN101510732A (en) | Control method for electron beam punching machine acceleration high-voltage power supply and power supply device | |
| CN210247091U (en) | Intermediate frequency preheating type temperature control adjusting power supply system for steam turbine retaining ring | |
| CN201455506U (en) | Split high-frequency controller | |
| US4292497A (en) | Pulsed arc welding and surfacing apparatus | |
| CN201950342U (en) | Control circuit of IGBT inversion type arc-welding machine and circuit board structure thereof | |
| CN102573163B (en) | High-voltage power supply of electron beam melting furnace | |
| CN101596636B (en) | Split-type high frequency controller | |
| CN110153535B (en) | Power conversion circuit of high-frequency inverter welding machine | |
| CN209948695U (en) | Electric arc furnace DC chopper power supply device | |
| KR19990027007A (en) | Arc type electric welding machine using voltage type inverter and its welding method | |
| CN102208866A (en) | Intermediate frequency inversion DC and variable frequency AC resistance welding power supply | |
| CN206316513U (en) | A kind of electric welding machine safety control | |
| CN201198070Y (en) | Arc stud welding machine | |
| CN2855609Y (en) | High frequency impulse electric power used for electric spark processing | |
| CN201366565Y (en) | Cold welding machine | |
| CN214867912U (en) | Multifunctional output circuit of cutting and welding machine | |
| KR100275667B1 (en) | Power supply for arc welding using partial resonant soft switching | |
| CN2185175Y (en) | Power for inverted type cutting-welding machine | |
| CN2278301Y (en) | Compensator for instantaneous potential drop | |
| CN2265867Y (en) | Super microcrystalline iron core single-end inverse DC welder | |
| RU6735U1 (en) | WELDING POWER SUPPLY |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right |