CN201073713Y

CN201073713Y - Digitalized multifunctional inverter welding machine

Info

Publication number: CN201073713Y
Application number: CNU200720104283XU
Authority: CN
Inventors: 唐德渝; 冯标; 牛虎理; 龙斌; 李春润; 张建护
Original assignee: China National Petroleum Corp; CNPC Engineering Technology Research Institute Co Ltd
Current assignee: China National Petroleum Corp; CNPC Engineering Technology Research Institute Co Ltd
Priority date: 2007-04-17
Filing date: 2007-04-17
Publication date: 2008-06-18
Anticipated expiration: 2017-04-17

Abstract

The utility model relates to a digital multifunctional inversion welder, which comprises a bottom panel 1, a side panel 2, a front panel 3, a rear panel 4, an upper cover plate 5, an angle iron support 6, a barrier 7, a vertical plate 8, a reactor 9, a current sensor 10, a main transformer 11, an insulation grid bipolar transistor 12, a rapid recovery diode 13, a right radiator 14, a left radiator 15, a three-phase rectifier bridge 16, a filter 17, a switching power supply 18, a main control board assembly 19, a driving board assembly 20, a control transformer 21, an intelligent board assembly 22, a wire feeding board assembly 23, a digital display meter 24, a powers switch 25, an adjusting knob assembly 26, an aviation plug 27, a cable quick connector assembly 28, a fan 29, an AC contactor 30, a fuse holder 31, and a power panel assembly 32. The utility model can meet cellulose electrode downward welding and also can meet self-shielded flux-cored wire semi-automatic welding, thereby having multifunction. The utility model can be used for the welding of gathering pipeline and long-distance pipeline in oil field.

Description

The digital multifunctional inverter type welder

Technical field

The utility model relates to a kind of digital multifunctional inverter type welder, is used for the welding procedure that oil field pipe root pass and capping are filled.

Background technology

Existing oil field gathering and transportation pipeline and in the field condition construction of small-bore long distance pipeline; for improving welding efficiency; guarantee project progress; usually adopt the cellulose welding rod to carry out the welding of root pass; thereafter filling and final pass adopt the self-protection flux-cored wire semiautomatic welding; wherein; cellulose welding rod down hill welding requires very high to the external characteristics and the dynamic characteristic of the source of welding current; and the self-protection flux-cored wire welding; the external characteristics of its power supply is different fully with the power supply of cellulose welding rod welding, is flat characteristic, simultaneously; the performance under the big normality condition of power supply and the adjusting function of standard are had higher requirements; therefore, in the practice of construction, must two welding machines of configuration.

The utility model content

The technical problems to be solved in the utility model: avoid above-mentioned weak point of the prior art and the digital multifunctional inverter type welder that a kind of cost is low, easy and simple to handle, can satisfy cellulose welding rod down hill welding and self-protection flux-cored wire semiautomatic welding, a tractor serves several purposes simultaneously is provided.

The technical solution adopted in the utility model:

The digital multifunctional inverter type welder, it comprise angle iron bracket 6 between bottom panel 1, side panel 2, front panel 3, rear board 4, upper cover plate 5, front panel 3 and the rear board 4, dividing plate 7 fixing on the angle iron bracket 6, on dividing plate 7 fixing riser 8, it is characterized in that on bottom panel 1, being installed with reactor 9, current sensor 10, below dividing plate 7, be installed with main transformer 11, igbt 12, fast recovery diode 13, right radiator 14, left radiator 15, three-phase commutation bridge 16; On dividing plate 7, be installed with wave filter 17, Switching Power Supply 18, master control borad assembly 19, drive plate assemblies 20; On riser 8, be installed with control transformer 21, intelligent plate assembly 22, wire feed board component 23; Be installed with digital wash 24, power switch 25, adjusting knob assembly 26, aviation plug 27, cable snap joint assembly 28 in front on the plate 3; Be installed with fan 29, A.C. contactor 30, Insurance Block 31, power panel assembly 32 in the back on the plate 4; External three-phase 380V electricity arrives A.C. contactor 30 through power switch 25, Insurance Block 31 and is divided into three the tunnel: first via wind-receiving fan 29; The second the tunnel through three-phase commutation bridge 16, igbt 12, main transformer 11, fast recovery diode 13, reactor 9 arrival cable snap joint assemblies 28; Third Road arrives control transformer 21 through wave filter 17, give

intelligent plate assembly

22 and 19 power supplies of master control borad assembly respectively by Switching Power Supply 18 and power panel assembly 32 then, wherein intelligent plate assembly 22 connects digital wash 24 and adjusting knob assembly 26, and master control borad assembly 19 drives igbt 12, arrives aviation plug 27 through wire feed board component 23 through drive plate assemblies 20.

The digital multifunctional inverter type welder, it is characterized in that bottom panel 1, side panel 2, front panel 3, rear board 4, upper cover plate 5 constitutes the casing of a cuboid, long 480～the 520mm of casing, wide 290～320mm, high 530～580mm, drive plate assemblies 20 is 100～1000mm to the wiring distance of igbt 12, channel width between right radiator 14 and the left radiator 15 is 20～50mm, respectively have the long 90～110mm of two row on front panel 3 and the side panel 2, the louvre of wide 8～15mm has the long 40～50mm of three row on the rear board 4, the louvre of wide 3～10mm.

Preferred digital multifunctional inverter type welder, it is characterized in that the long 500mm of casing, wide 300mm, high 550mm, drive plate assemblies 20 is 500mm to the wiring distance of igbt 12, channel width between right radiator 14 and the left radiator 15 is 30mm, the long 95mm of louvre on front panel 3 and the side panel 2, wide 10mm, the long 45mm of the louvre on the rear board 4, wide 5mm.

The wiring distance of 500mm can effectively prevent electromagnetic interference between drive plate assemblies 20 and the igbt 12, guarantees the work that consumable accessory igbt 12 is safe and reliable; Between right radiator 14 and the left radiator 15 on the passage of 30mm and front panel 3, the side panel 2 on long 95mm, wide 10mm and the rear board 4 louvre of long 45mm, wide 5mm form unimpeded air channel, can effectively control temperature rise speed, guarantee the reliable and stable work of the source of welding current.

Adjusting knob assembly 26 comprises welding method selector switch, polar selecting switch, gage of wire selector switch, weldingvoltage knob, welding current knob, push current knob, under-voltage indicator lamp, overcurrent indicator lamp, crosses thermal light; Cable snap joint assembly 28 comprises a negative pole and two positive poles; Intelligent plate assembly 22 is made of digital signal processor, D/A conversion module, mould/number conversion module; Master control borad assembly 19 is made of integrated pulse width modulator, operational amplifier and resistance-capacitance circuit.

The utility model beneficial effect compared with prior art is as follows:

1, adopt digital technology, by software programming, can be under the condition that does not increase the system hardware configuration; realize the external characteristics that two kinds of special process require; can satisfy cellulose welding rod down hill welding, also can carry out the self-protection flux-cored wire semiautomatic welding, have the function of a tractor serves several purposes.

2, system hardware is not being carried out under the condition of any change, by revising software, increase systemic-function, improve the performance of equipment, promptly can carry out upgrading on the performance and the expansion on the function to equipment, make equipment have adaptive capacity widely by software mode.

3, main circuit and control circuit isolation, surface-mounted integrated circuit and power device are isolated, and this design has strengthened the antijamming capability of equipment, and it is reliable to make it more stable work.

4, form unimpeded air channel between the main circuit components and parts, help heat radiation, make the work that equipment can be more stable.

5, the equipment that adopts this technology to make can reduce the configuration of field apparatus, promptly reduces the investment of equipment, reduces engineering cost, brings tangible economic benefit to unit in charge of construction.

Description of drawings

Fig. 1 is the outline drawing of digital multifunctional inverter type welder;

Fig. 2 is its structural representation that removes side panel and upper cover plate;

Fig. 3 is its rearview that removes side panel and upper cover plate;

Fig. 4 is its dividing plate installation diagram;

Fig. 5 is its right radiator installation diagram;

Fig. 6 is its circuit block diagram;

Fig. 7 is its soldered wires schematic diagram.

The specific embodiment:

As accompanying

drawing

1,2,3,4,5,6, shown in 7, among the figure: 1---bottom panel, 2---side panel, 3---front panel, 4---rear board, 5---upper cover plate, 6---angle iron bracket, 7---dividing plate, 8---riser, 9---reactor, 10---current sensor, 11---main transformer, 12---igbt, 13---fast recovery diode, 14---right radiator, 15---left radiator, 16---three-phase commutation bridge, 17---wave filter, 18---Switching Power Supply, 19---the master control borad assembly, 20---drive plate assemblies, 21---control transformer, 22---the intelligent plate assembly, 23---the wire feed board component, 24---digital wash, 25---power switch, 26---the adjusting knob assembly, 27---aviation plug, 28---cable snap joint assembly, 29---fan, 30---A.C. contactor, 31---Insurance Block, 32---the power panel assembly, 100---wire-feed motor, 101---welding gun, 102---workpiece, 103---the control cable, 104---welding cable, 105---electrode holder, 106---the input cable.Digital multifunctional inverter type welder of the present utility model, comprise that bottom panel 1 is to power panel assembly 32 in the above-mentioned accompanying drawing, casing is a cuboid, the long 500mm of casing, wide 300mm, high 550mm, drive plate assemblies 20 is 500mm to the wiring distance of igbt 12, channel width between right radiator 14 and the left radiator 15 is 30mm, the long 95mm of louvre on front panel 3 and the side panel 2, wide 10mm, the long 45mm of the louvre on the rear board 4, wide 5mm.

The working procedure of digital multifunctional inverter type welder is as follows:

Welding machine is inserted three-phase 380V by input cable 106, the power supply unit of 50Hz, workpiece 102 connects the negative pole of cable snap joint assembly 28 by welding cable 104, electrode holder 105 connects a positive pole of cable snap joint assembly 28 by welding cable 104, welding gun 101 connects another positive pole of cable snap joint assembly 28 by wire-feed motor 100, wire-feed motor 100 links to each other with aviation plug 27 by control cable 103, descend when the backing welding with the cellulose welding rod, power switch 25 is placed the ON position, welding method selector switch in the adjusting knob assembly 26 is placed the manual metal-arc welding position, polar selecting switch places positive polarity, play arc welding then, after welding is finished, power switch 25 is placed the OFF position, close welding machine; With the flux-cored wire semiautomatic welding fill, during capping, power switch 25 is placed the ON position, welding method selector switch in the adjusting knob assembly 26 placed medicine core welding position is put, polar selecting switch places reversed polarity, play arc welding then, after welding is finished, power switch 25 is placed the OFF position, close welding machine.

This digital multifunctional inverter type welder in pipeline welding, places the manual metal-arc welding position with the welding method selector switch in the adjusting knob assembly 26, and this moment, fall volt-ampere characteristic output was satisfied under the cellulose welding rod fully to root bead; Place medicine core welding position to put the welding method selector switch in the adjusting knob assembly 26, this moment, flat external characteristics output can be satisfied the filling of flux-cored wire semiautomatic welding, capping, and appearance of weld is good, the efficient height, source of welding current volume is little, and convenient in carrying has very strong adaptive capacity.

This installs used intelligent plate assembly 22 and master control borad assembly 19 adopts the sales of factory of China Petroleum Group Engineering and Technology Research Institute; This installs other former parts and all adopts the former parts that have now in bottoming welding machine and the self-protection flux-cored wire semi-automatic arc welder.

Claims

1. digital multifunctional inverter type welder, it comprises bottom panel (1), side panel (2), front panel (3), rear board (4), upper cover plate (5), angle iron bracket (6) between front panel (3) and the rear board (4), go up fixing dividing plate (7) at angle iron bracket (6), go up fixing riser (8) at dividing plate (7), it is characterized in that on bottom panel (1), being installed with reactor (9), current sensor (10) is installed with main transformer (11) below dividing plate (7), igbt (12), fast recovery diode (13), right radiator (14), left side radiator (15), three-phase commutation bridge (16); On dividing plate (7), be installed with wave filter (17), Switching Power Supply (18), master control borad assembly (19), drive plate assemblies (20); On riser (8), be installed with control transformer (21), intelligent plate assembly (22), wire feed board component (23); Be installed with digital wash (24), power switch (25), adjusting knob assembly (26), aviation plug (27), cable snap joint assembly (28) in front on the plate (3); Be installed with fan (29), A.C. contactor (30), Insurance Block (31), power panel assembly (32) in the back on the plate (4); External three-phase 380V electricity arrives A.C. contactor (30) through power switch (25), Insurance Block (31) and is divided into three the tunnel: first via wind-receiving fan (29); The second the tunnel through three-phase commutation bridge (16), igbt (12), main transformer (11), fast recovery diode (13), reactor (9) arrival cable snap joint assembly (28); Third Road arrives control transformer (21) through wave filter (17), give the power supply of intelligent plate assembly (22) and master control borad assembly (19) respectively by Switching Power Supply (18) and power panel assembly (32) then, wherein intelligent plate assembly (22) connects digital wash (24) and adjusting knob assembly (26), and master control borad assembly (19) drives igbt (12), arrives aviation plug (27) through wire feed board component (23) through drive plate assemblies (20).

2. digital multifunctional inverter type welder according to claim 1, it is characterized in that bottom panel (1), side panel (2), front panel (3), rear board (4), upper cover plate (5) constitutes the casing of a cuboid, long 480～the 520mm of casing, wide 290～320mm, high 530～580mm, drive plate assemblies (20) is 100～1000mm to the wiring distance of igbt (12), channel width between right radiator (14) and the left radiator (15) is 20～50mm, respectively have the long 90～110mm of two row on front panel (3) and the side panel (2), the louvre of wide 8～15mm has the long 40～50mm of three row on the rear board (4), the louvre of wide 3～10mm.

3. digital multifunctional inverter type welder according to claim 1 and 2, it is characterized in that the long 500mm of casing, wide 300mm, high 550mm, drive plate assemblies (20) is 500mm to the wiring distance of igbt (12), channel width between right radiator (14) and the left radiator (15) is 30mm, the long 95mm of louvre, wide 10mm on front panel (3) and the side panel (2), the long 45mm of louvre on the rear board (4), wide 5mm.