CN86204304U - Multi-head dc and ac welder - Google Patents
Multi-head dc and ac welder Download PDFInfo
- Publication number
- CN86204304U CN86204304U CN 86204304 CN86204304U CN86204304U CN 86204304 U CN86204304 U CN 86204304U CN 86204304 CN86204304 CN 86204304 CN 86204304 U CN86204304 U CN 86204304U CN 86204304 U CN86204304 U CN 86204304U
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- welding machine
- direct current
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- output
- welding
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- Generation Of Surge Voltage And Current (AREA)
Abstract
The utility model relates to a multi-head direct current and alternate current welding machine, which belongs to a manual arc welding machine. The utility model is characterized in that the number of the welding machine head is 3*n (n is from 1 to 5); the electric current polarity of each head can be converted into the alternate current or the direct current for 3*n welders to carry out alternate current welding or direct current welding at the same time. A power transformer of the utility model is provided with 3*n groups of uniphase output and each group of output is the power supply of a one head direct current and alternate current welding machine; when two direct current output ends are in joint in parallel, the two direct current output ends can be used as a carbon planer; when matched with resistors, the output end can be used a heating power supply for work pieces to meet various working conditions of the manual arc welding.
Description
The utility model bull direct current-direct current (AC-DC) welding is a kind of direct current-direct current (AC-DC) welding of the 3n of may be made in head, i.e. 3,6,9,12 or 15 friendship of n=1,2,3,4 or 5, dual-purpose welding machine directly, the prior art approaching with the utility model is single head AC and DC dual-purpose welding machine, the secondary of its power transformer is one group of single-phase winding, obtain falling characteristic with Regulatable reactor, alternating current is directly exported by knife switch, is AC welding set.If knife switch connects the rectifying and wave-filtering circuit, output DC becomes DC welder.It is can AC and DC dual-purpose, but one head arc welding machine just.
The another kind of prior art approaching with the utility model is the bull DC welder, and its early production mostly is the general supply of a flat characteristic, and each head adds a variable rheostat again, utilizes resistance to obtain falling characteristic.The recent product of this class welding machine, as " 6 silicon rectifier welders " of the 6th phase of nineteen eighty-two electric welding machine magazine publication, by 6 group 3 mutually output power transformer, 6 saturable reactors with 63 mutually bridge rectifier formed.This bull DC welder, can not AC and DC dual-purpose.
Another prior art approaching with the utility model is the bull AC welding set, and it is by a power transformer and connect many reactors and formed, and it can only be the bull AC welding set, and be can not AC and DC dual-purpose.
The utility model is a kind of bull (3n head) AC and DC dual-purpose welding machine; its feature is that power transformer (1) has independently 3n(n=1～5) organize single-phase output, every group all has Regulatable reactor (2), bridge type silicon rectification group (3), filter reactor (4), double-point double-throw switch (5), resistance-capacitance protection element (6), output fuse (7) and a cooling fan (8) to form.
This power transformer (1) is the three pillar type transformer, and the post core is multistage stairstepping, and internal layer is elementary winding on each post core, and skin is established air duct radiation for n group secondary winding between ectonexine, and the tight lotus root of ectonexine is closed, and leakage field is little, and transformer characteristic is straight.Its elementary winding is 3 380 volts cartridge type windings that Δs connect mutually, and secondary is 3n(n=1～5 independently) the single-phase 78 volts of segmentation disc type windings of group, every component become four sections and around, every section coils coil tandems by two and forms.The 3n of transformer organizes single-phase output, forms 3n independent loop, and this structure is guaranteed arbitrary loop when the output of conversion interchange or direct current, and the influence of the voltage and current in other loops is reduced to minimum,
Multi-head welder in the past.Because a plurality of soldering tip common transformer is same secondary, each loop interferes with each other.When the welding head number that drops into increased (minimizing), the setting electric current of each soldering tip can reduce (increase), so that can not normally weld, and must align electric current again.This phenomenon is commonly referred to " robbing " phenomenon.
The utility model has adopted special transformer, and the secondary 3n of having organizes single-phase output, forms 3n group independent loop, thereby the interference between each loop is greatly reduced, and " robbing " influence greatly reduces.
Described Regulatable reactor (2) is the inductance coil of wire that is serially connected in the band iron core in the circuit, by the air-gap between the handle rotary screw rod change iron core, regulates inductance value, thereby obtains falling characteristic and regulate size of current.
Bridge rectifier group (3) is made of 4 silicon diodes.
Filter reactor (4) is an inductance coil that band is unshakable in one's determination that is connected in the DC loop, strobes.
Resistor-Capacitor Unit (6) is as the overvoltage protection of silicon diode.
Output fuse (7) is made the short circuit overload protection.
Double-point double-throw switch (5) is used for the conversion current polarity.The knife switch mid point connects workpiece and electrode holder respectively, when switch upwards closes, inserts rectifier filter, output DC; Switch closes downwards and directly connects the variable reactor output AC.Two direct current output-parallels increase output current, can make the carbon planer.Mix resistance and can make the workpiece heating power supply.
Main purpose of the present utility model is to create a kind of multipurpose multi-head welder that can satisfy the various operating modes of manual welding, and leg weld seam acidic electrode is with AC welding set efficient height; Weldering plate seam is used basic electrode, can only use DC welder; The weldering slab will dig catching groove with carbon; The specific panel welding will be used heating power supply.More than operating mode the utility model of these general manual weldings can both satisfy.And can also exchange simultaneously for many people, direct current, carbon dig, the various operating modes operations of heating.
Two of the purpose of this utility model is energy-conservation, adopts silicon rectifier, reactor to regulate electric current electrical efficiency height, economize on electricity.Through practical measurement, power consumption economizes 20% less than half of resistance-type bull DC welder than rotary DC welder, economizes 90% with the single head AC and DC welding machine of identical number than, no-load loss.
Three of the purpose of this utility model be create a kind of simple in structure, durable, easy to maintenance, noise is little, " material benefit " type welding machine of good welding performance to be to meet the needs of the industry of a large amount of welding machines.
Claims (3)
1, a kind of bull AC welding set and a kind of bull DC welder; it is characterized in that a kind of bull AC-dc welding machine is that every group all has Regulatable reactor (2), bridge type silicon rectification group (3), filter reactor (4), double-point double-throw switch (5), resistance-capacitance protection element (6), output fuse (7) and a cooling fan (8) to form by the power transformer (1) of the single-phase output of a 3n (n=1～5) group.
2, welding machine according to claim 1 is characterized in that described power transformer is that the 3n of segmentation disc type coiling organizes single-phase 78 volts of secondary winding and forms by the elementary windings of 380 volts of Δs connections of 3 phases of three pillar type iron core, cartridge type coiling.Each post in-core layer is elementary winding, and the outer n of being organizes secondary winding, and the tight lotus root of ectonexine winding is closed, and transformer has straight external characteristic.
3, welding machine according to claim 2 is characterized in that described 3n organizes single-phase secondary winding.Letter n represents any one number in 1,2,3,4 and 5 five integer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86204304 CN86204304U (en) | 1986-06-21 | 1986-06-21 | Multi-head dc and ac welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86204304 CN86204304U (en) | 1986-06-21 | 1986-06-21 | Multi-head dc and ac welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86204304U true CN86204304U (en) | 1987-12-16 |
Family
ID=4807400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86204304 Withdrawn CN86204304U (en) | 1986-06-21 | 1986-06-21 | Multi-head dc and ac welder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86204304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101599680B (en) * | 2009-04-03 | 2011-08-17 | 隆发建筑机械(上海)有限公司 | Double welding torch direct-current arc welding and power generation machine |
-
1986
- 1986-06-21 CN CN 86204304 patent/CN86204304U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101599680B (en) * | 2009-04-03 | 2011-08-17 | 隆发建筑机械(上海)有限公司 | Double welding torch direct-current arc welding and power generation machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |