CN2698509Y

CN2698509Y - Steel plate press welder

Info

Publication number: CN2698509Y
Application number: CN 200420027095
Authority: CN
Inventors: 蒋万兴
Original assignee: Wuxi Weihua Electric Welder Manufacture Co Ltd
Current assignee: Wuxi Weihua Electric Welder Manufacture Co Ltd
Priority date: 2004-05-14
Filing date: 2004-05-14
Publication date: 2005-05-11
Anticipated expiration: 2014-05-14

Abstract

The utility model relates to welding technique and concretely is a steel plate press welder adopted the direct-current welding mode which can press and weld a load band steel and a transversal bar positioned between the upper electrode and the lower electrode and arranged in the finite mode into a steel plate. According to the design offered by the utility model, a guide post is installed on a lower base, the upper end of the guide post is provided with an upper cross beam, the guide post between the lower base and the upper cross beam is provided with a sliding block which can move upwardly and downwardly and the sliding block is interconnected with the upper cross beam by a hydraulic cylinder. The utility model is characterized in that at least two groups of mutual and symmetrical transformer components and rectifier components are installed on the sliding block, the center taps of the two groups of the transformer components are interconnected by a big T row and the common negative end or the common positive end of the two groups of the rectifier components is interconnected by a small T row. The utility model can simplify the structure, shorten the welding loop, improve the welding efficiency and reduce the energy consumption.

Description

Steel-grating press welder

Technical field

The utility model relates to solder technology, specifically a kind of adopt the direct current welding manner to arrange the load band steel that is positioned between upper/lower electrode by certain way pressure welding becomes the press welder of steel grating with cross bar.

Background technology

Steel grating is arranged by certain spacing separately by load band steel and the cross bar that is orthogonal to the load band steel and is formed, and each intersection point of load band steel and cross bar is by welding manner such as automatic resistance pressure-welding or manual electric arc welding or press lock to be fixed.The load band steel generally adopts I type band steel and common band steel, and cross bar generally adopts round steel and twisting steel.The steel grating that adopts automatic resistance pressure-welding technology to make is generally made 6000 * 995 millimeters raw sheet earlier, is sawn into certain size according to user's needs then, and bound edge is zinc-plated; If the steel grating that adopts manual electric arc welding technology to make, general elder generation is broken into certain length with load band steel and cross bar, and bound edge is zinc-plated again in manual welding then.

The country that produces this equipment at present mainly contains the U.S., Japan, Australia, Korea S and China (ground zero), equipment that these countries produce are that the source of welding current and press are combined into the press welder except that interchange production line produced in USA, it all is separate mechanism, the source of welding current and press are independently to separate, be not that the both sides that the source of welding current comes press are placed the source of welding current press discharging direction side exactly, direct current production line each several part is independently without exception entirely.The greatest drawback that absolute construction brings is welding circuit long (power supply is long to the outlet line of workpiece).What resistance pressure-welding adopted is low-voltage and high-current (only several volts of voltage, electric current several ten thousand is to the hundreds of thousands ampere) technology, and obviously welding circuit length is with big lossy electric energy.

Summary of the invention

The purpose of this utility model is to design a kind of steel-grating press welder, with simplified structure, shortens welding circuit, improves welding efficiency, reduces energy resource consumption.

According to design provided by the utility model, guide pillar is installed on lower bottom base, there is entablature upper end at guide pillar, the slide block that can move up and down is arranged on the guide pillar between lower bottom base and entablature, between slide block and entablature, utilize hydraulic cylinder to interconnect, it is characterized in that: two groups of transformer devices that are connected in parallel symmetrically and rectifier assembly are installed on slide block at least, the centre cap of two groups of transformer devices utilizes big T row to interconnect respectively, common the moon of two groups of rectifier assemblies is held or is total to oedoeagus and utilizes little T row to interconnect respectively, and then be connected with electrode respectively, constitute electric power loop.

Utilize electrode tip holder and electrode pressing plate installing electrodes in the lower end of slide block, the position corresponding to electrode on lower bottom base utilizes lower electrode holder that lower electrode plate is installed.The feather key that play the guiding role is set between lower electrode holder and lower bottom base, backing plate and intermediate plate are set on lower electrode plate.Insulation sleeve and insulating pad are set between electrode tip holder and slide block.Electrode tip holder is made up of electrode tip holder A and electrode tip holder B, and between electrode tip holder and the lower bottom base positioning key is set.

The utility model has the advantages that: 1, successfully (1000～1600KVA) the direct current resistance welding power source of being made up of welding transformer and rectifier is reasonably combined with press, and makes welding circuit short as far as possible, and volume is as far as possible little with big capacity.2, the position of correctly having handled between press slide, welding transformer, rectifier, busbar and the output electrode concerns that these a few part devices are not subjected to the interference effect of high-intensity magnetic field when guaranteeing welding, work reliably.3, after the high-capacity direct current resistance welding power source adopts two less power supplys of being made up of welding transformer and rectifier to be connected in the mode of symmetrical parallel connection, reasonably solved the equilibrium problem of two power supplys.

Because the utility model is combined into one the core position source of welding current and the press of production line, become the double press welder welding of an independent direct current main frame, welding circuit is shortened, it only is below 1/2 of original split type welding main frame, save electric energy widely, reduced the requirement of user's power supply capacity.

Description of drawings

Fig. 1 is a front view of the present utility model.

Fig. 2 is the right view of Fig. 1.

Fig. 3 is that the P of Fig. 2 is to view.

Fig. 4 is the B-B view of Fig. 1.

Fig. 5 is the C-C view of Fig. 1.

Fig. 6 is a source of welding current main circuit diagram.

Fig. 7 is the enlarged drawing of I among Fig. 4.

The specific embodiment

As shown in the figure: 1, lower bottom base is used to install lower electrode holder etc.; 2, guide pillar leads when slide block moves up and down; 3, load band steel is the material before steel grating is shaped; 4, cross bar is the material before steel grating is shaped equally; 5, guide pin bushing leads when slide block moves up and down; 6, slide block is used to install transformer device, rectifier assembly and electrode tip holder A, electrode tip holder B etc., and transmits pressure to cross bar; 7, transformer device becomes alternating current about 10V with the step-down of electrical network 380V alternating current; 8, big T row B is used to connect two transformer devices, and the centre cap of 6 transformers is associated in together, as the negative pole of the source of welding current electricity is delivered to electrode; 9, hydraulic cylinder is used to drive the slide block knee-action, and welding pressure is provided; 10, entablature is used to install hydraulic cylinder; 11, big T row A is used to connect two transformer devices, and the centre cap of 6 transformers is associated in together, as the negative pole of the source of welding current electricity is delivered to electrode; 12, centre cap connects row, connects the centre cap of single transformer; 13, studs, 14, hex nut, 15, plain washer, 16, spring washer all are used to connect transformer device and rectifier assembly; 17, rectifier assembly becomes direct current with the AC rectification after every transformer step-down; 18, soket head cap screw connects rectifier assembly and little T row; 19, little T row connects two rectifier assemblies, common the moon of rectifier is held be associated in together, as the positive pole of the source of welding current electricity is delivered to electrode; 20, insulating pad is with the source of welding current and frame insulation; 21, insulation sleeve acts on same insulating pad; 22, electrode tip holder A is used for loading electrode, connects busbar (little T row); 23, the electrode pressing plate is used for fixing electrode; 24, hex bolts, 25, plain washer, 26 spring washers all are used for fixing the electrode pressing plate; 27, electrode is used to carry welding current (voltage) and welding pressure is passed to workpiece; 28, positioning key is accurately located electrode; 29, electrode tip holder B is used for installing electrodes, connects busbar (big T row); 30,31,32 soket head cap screws are used for fixing electrode tip holder A, B; 33, feather key is accurately located lower electrode holder; 34, lower electrode plate is used for holding workpieces; 35, lower electrode holder is used to install lower electrode plate; 36, backing plate is used to adjust predeformation amount; 37, intermediate plate is given predeformation of workpiece during welding, make after the work-piece cools not crooked.

Guide pillar 2 is installed on lower bottom base 1, in the upper end of guide pillar 2 entablature 10 is arranged, on the guide pillar 2 of 10 of lower bottom base 1 and entablatures, the slide block 6 that can move up and down is arranged, between slide block 6 and entablature 10, utilize hydraulic cylinder 9 to interconnect, two groups of transformer devices that are connected in parallel symmetrically 7 and rectifier assembly 17 are installed on slide block 6 at least, the centre cap of two groups of transformer devices 7 utilizes big T row to interconnect respectively, common the moon of two groups of rectifier assemblies 17 is held or is total to oedoeagus and utilizes little T row 19 to interconnect respectively, and then be connected with electrode 27 respectively, constitute electric power loop.Two groups of transformer devices and two groups of rectifier assemblies are formed two bond pads power supplys respectively, because the connected mode of two bond pads power supplys is symmetrical, have therefore offset the phase mutual interference that powerful magnetic field causes effectively.

Utilize electrode tip holder and electrode pressing plate 23 installing electrodes 27 in the lower end of slide block 6, the position corresponding to electrode 27 on lower bottom base 1 utilizes lower electrode holder 35 that lower electrode plate 34 is installed.The feather key 33 that play the guiding role is set between lower electrode holder 35 and lower bottom base 1, backing plate 36 and intermediate plate 37 are set on lower electrode plate 34.Insulation sleeve 21 and insulating pad 20 are set between electrode tip holder and slide block 6.Electrode tip holder is made up of electrode tip holder A 22 and electrode tip holder B 29, and between electrode tip holder and lower bottom base 1 positioning key 28 is set, so that when reinstalling electrode after safeguarding electrode, can make electrode obtain accurate in locating.Electric power loop is positioned at the inboard of two groups of rectifier assemblies 17, makes welding circuit obtain shortening, and has reduced the consumption of power supply.

Under the control of hydraulic system, slide block 6 can done on the guide pillar 2, lower slider, and by electrode tip holder A 22, electrode tip holder B 29, electrode 27 is exerted pressure to cross bar 4 and load band steel 3, the source of welding current is by two duplicate rectifier power source (500KVA～800KVA) be formed in parallel, two transformer group 7 are installed in the upper end of slide block 6 both sides mutually symmetrically, the centre cap of 3 transformers is linked together with centre cap connection row 12 respectively in the transformer device 7, centre cap connection row 12 passes slide block 6 top rectangular openings by two big T row A 11 and two big T row B 8 and is associated in together, and link with electrode tip holder B29,1 cube electrode 27 links with electrode tip holder B 29, becomes the negative pole of the source of welding current.Two rectifier assemblies 17 directly are fixed on the lower end of transformer device 7, make compact conformation, reasonable, union end is associated in together by the rectangular opening that 3 little T pieces 19 pass above the slide block below the rectifier assembly 17, and link with electrode tip holder A 22,1 cube electrode 27 links with electrode tip holder A 22 becomes the positive pole of the source of welding current.Electrode 27, electrode tip holder A 22, electrode tip holder B 29, big T row A 11, big T row B 8, little T row 19, centre cap connect row 12, rectifier assembly 17, transformer device 7 and slide block 6 and join together, can synchronous upper and lower slip.

Claims

1, steel-grating press welder, go up installation guide pillar (2) at lower bottom base (1), in the upper end of guide pillar (2) entablature (10) is arranged, the slide block (6) that can move up and down is arranged on the guide pillar (2) between lower bottom base (1) and entablature (10), between slide block (6) and entablature (10), utilize hydraulic cylinder (9) to interconnect, it is characterized in that: two groups of transformer devices that are connected in parallel symmetrically (7) and rectifier assembly (17) are installed on slide block (6) at least, the centre cap of two groups of transformer devices (7) utilizes big T row to interconnect respectively, common the moon of two groups of rectifier assemblies (17) is held or is total to oedoeagus and utilizes little T row (19) to interconnect respectively, and then be connected with electrode (27) respectively, constitute electric power loop.

2, steel-grating press welder according to claim 1, it is characterized in that: utilize electrode tip holder and electrode pressing plate (23) installing electrodes (27) in the lower end of slide block (6), the position of going up corresponding to electrode (27) at lower bottom base (1) utilizes lower electrode holder (35) that lower electrode plate (34) is installed.

3, steel-grating press welder according to claim 1 and 2 is characterized in that: the feather key (33) that play the guiding role is set between lower electrode holder (35) and lower bottom base (1), backing plate (36) and intermediate plate (37) are set on lower electrode plate (34).

4, steel-grating press welder according to claim 2 is characterized in that: insulation sleeve (21) and insulating pad (20) are set between electrode tip holder and slide block (6).

5, steel-grating press welder according to claim 2 is characterized in that: electrode tip holder is made up of electrode tip holder A (22) and electrode tip holder B (29), and between electrode tip holder and the lower bottom base (1) positioning key (28) is set.

6, steel-grating press welder according to claim 1 is characterized in that: electric power loop is positioned at the inboard of two groups of rectifier assemblies (17).

7, steel-grating press welder according to claim 1, it is characterized in that: the centre cap of 3 transformers in two transformer devices (7) connects row (12) with centre cap respectively and is linked together, centre cap connection row (12) utilizes big T row A (11) and big T row B (8) to pass the top hole of slide block (6) and is associated in together, and link with electrode tip holder B (29), electrode (27) links with electrode tip holder B (29), become the negative pole of the source of welding current, two rectifier assemblies (17) directly are fixed on the lower end of two transformer devices (7) respectively, the hole that the following union end of rectifier assembly (17) utilizes little T row (19) to pass above the slide block (6) is associated in together, and link with electrode tip holder A (22), electrode (27) links with electrode tip holder A (22) becomes the positive pole of the source of welding current.