CN217529564U - Novel vertical welding equipment - Google Patents

Abstract

The utility model discloses a novel vertical welding device, which comprises a base plate, a welding gun, an air pipe, a rear baffle, a front baffle and a lifting mechanism; the welding gun mainly comprises a gun rod, a gun frame and a conductive nozzle, wherein the gun rod is an arc-shaped flat gun rod, the conductive nozzle is a flat conductive nozzle, and the welding gun is a single-wire welding gun or a double-wire welding gun; the double-wire welding gun is a welding gun A and a welding gun B; wire feeding holes are formed in the welding gun A and the welding gun B, the welding wire A and the welding wire B respectively penetrate through the wire feeding holes of the welding gun A and the welding gun B, and the welding gun A and the welding gun B are slidably arranged in the base plate and locked by bolts; the air pipe is fixedly arranged in the base plate and is positioned between the gun frames of the welding gun A and the welding gun B, and the rear baffle and the front baffle are made of flexible temperature-resistant materials. The utility model discloses combine narrow gap welding and electroslag welding or the advantage of electrogas vertical welding, remove "run-on plate" and "receipts arc board" in the narrow gap welding simultaneously, can be used to the flat welding and also can be used to found bold, overheated tendency is little, has solved many years puzzlement welding engineer's a difficult problem.

Description

Novel vertical welding equipment

Technical Field

The utility model relates to the field of welding technology, relate to the advantage of welding electroslag welding or electro-gas welding and two kinds of welding equipment in narrow clearance combines together to form a brand-new type and found welding equipment immediately, and name "two narrow clearances of silk found welding machine".

Background

Gas shielded welding is mainly used for welding thin steel plates and steel plates with middle thickness, electroslag welding is mainly used for welding thick steel plates, and the shape of a welding seam is shown in figure 1; in the figure: a, b, c, d, e, f, g, h are weld seams, wherein: a, b are the length of the weld, b, f are the height of the weld (thickness of the steel plate); b and c are the widths of the welding seams.

Electroslag Welding (EW) was introduced into china in 1950, and the structure of the EW is shown in fig. 2-4, and comprises a weldment a 1, a weldment B2, a weldment C (backing plate) 3, an a welding gun 4, a B welding gun 5, an a conductive nozzle 8, a B conductive nozzle 9, an a welding wire 10, a B welding wire 11, molten slag 12a, a welding seam 14, a rear baffle 15, a front baffle 16 and a control unit (not shown). The welding method comprises the following steps that A weldments 1 and B weldments 2 are in a vertical state, C weldments are backing plates, the backing plates are located below the A weldments 1 and the B weldments 2, when welding is conducted, an A welding wire 10 and a B welding wire 11 are inserted into molten slag 12a, the welding wire and the weldments are melted by resistance heat of molten slag, molten metal (weld metal) is accumulated and fused above the C weldments 3 and adjacent positions of the A weldments 1 and the B weldments 2 and the C weldments 3, welding is continued, the weld is accumulated and fused at an upper weld 14 and adjacent positions of the A weldments 1 and the B weldments 2, a rear baffle 15 is added at the left end of the weld, a front baffle 16 is added at the right end of the weld, the rear baffle 15 and the front baffle 16 are used for preventing molten iron from falling off, and no requirement is placed on the height of the rear baffle 15; the welding gun and the connected cable, air pipe and water pipe are arc-shaped and enter the upper part of the welding seam 14 from the upper part of the front baffle 16 for welding, and the height of the front baffle 16 is required to ensure that the welding wire of the A welding gun 4 or the B welding gun 5 can be normally welded. As the weld bead and slag continue to rise, the front baffle 16 also rises accordingly. The front baffle 16 is made of water-cooled copper blocks, and the rear baffle 15 can be made of steel plates or water-cooled copper blocks.

Although gas shielded welding is generally used, the welding speed of welding thick steel plates by using gas shielded welding is too slow, and the electroslag welding process and equipment thereof greatly improve the welding speed of the thick steel plates, so the gas shielded welding is generally used. However, later, people noticed that during electroslag welding, due to the fact that the stay time of the welding seam metal at high temperature is long, the impact toughness of the welding seam is unqualified, people want to solve the problem that the welding seam metal of the electroslag welding is long in high temperature, and effective timidity cannot be found all the time. Until it was proposed: basically, the mechanical structure of electroslag welding, the power supply and the welding gun of gas shielded welding are utilized, i.e. the electric arc heat of gas shielded welding is used for heating metal without using the resistance heat of welding slag, so a brand new welding process and equipment thereof appear, namely: an electrogas welding process and its equipment.

Electrogas welding (EGW) was introduced into china in about 1980, and electrogas welding equipment shown in fig. 5 to 7 includes an a weldment 1, a B weldment 2, a c weldment (backing plate) 3, an a welding gun 4, a B welding gun 5, an a gun rod 6, a B gun rod 7, an a conductive nozzle 8, a B conductive nozzle 9, an a welding wire 10, a B welding wire 11, an a arc 12, a B arc 13, a welding seam 14, a rear baffle 15, a front baffle 16, and a control unit (not shown). The welding method comprises the following steps that A welding parts 1 and B welding parts 2 are in a vertical state, C welding parts are backing plates, the backing plates C are located below the A welding parts 1 and the B welding parts 2, during welding, welding seams are stacked and fused above the C welding parts 3 and adjacent positions of the A welding parts 1 and the B welding parts 2 and the C welding parts 3, welding is continued, the welding seams are stacked and fused on an upper welding seam 14 and adjacent positions of the A welding parts 1 and the B welding parts 2, a rear baffle 15 is added at the left end of each welding seam, a front baffle 16 is added at the right end of each welding seam, the rear baffles 15 and the front baffles 16 are used for blocking molten iron from falling off, and the height of the rear baffles 15 is not required; the welding gun and the connected cable, air pipe and water pipe are arc-shaped and enter the upper part of the welding seam 14 from the upper part of the front baffle 16 for welding, and the height of the front baffle 16 is required to ensure that the welding wire of the A welding gun 4 or the B welding gun 5 can be normally welded. As the weld bead and slag continue to rise, the front baffle 16 also rises accordingly. The front baffle 16 is made of water-cooled copper blocks, and the rear baffle 15 can be made of steel plates or water-cooled copper blocks.

When the electrogas welding equipment is used for electrogas welding, the whole plane of a welding line abcd is a molten pool for electrogas welding, a welding gun for electrogas welding is a circular copper rod, an insulating layer is coated outside the circular copper rod, a circular thread is arranged below the A welding gun 4 and connected with a circular insulating sleeve, the circular insulating sleeve is connected with a circular gun rod through the thread, and the circular copper rod and a circular conductive nozzle of the welding gun are connected.

The electrogas welding has been used for more than forty years, and some problems are also exposed in use, and the main effects are as follows:

1, the thickness of the welded plate is limited. The thickness of a plate which can be welded by single-wire electrogas welding is 30-40mm, and the thickness of a plate which can be welded by double-wire electrogas welding is 40-80mm, although theoretically, a thicker steel plate can be welded by adopting three-wire electrogas welding, a plurality of technical problems are involved, and no report of three-wire electrogas welding equipment and process exists at home and abroad up to now.

2, with the development of industry, a plurality of new steels appear, which put higher requirements on the high temperature retention time of the welding seam metal, and it has been mentioned that the whole plane of the welding seam abcd is a molten pool of the electrogas welding, so that the welding heat is still larger than that of the electroslag welding, and the application of the electrogas welding is limited in a plurality of important structures because of the overheating of the welding seam metal material.

Narrow gap welding (NG) is introduced into China in about 1980, is mainly used for thick plate welding, has been used for forty years, is very energy-saving, has more prominent energy-saving effect when the plate is thicker, is a straight flat welding gun, has narrower welding seam width than the welding seam of electrogas welding, has a punctiform molten bath as the molten bath of the electric arc of a welding wire, has the diameter of about 10 millimeters, so the welding heat is much smaller than the electrogas welding, the welding seam metal generally has no overheating tendency, and has good welding quality. However, the current narrow gap welding can only carry out flat welding, and the welded plate thickness is limited by the length of a welding gun, for example, if a steel plate with the thickness of 120 mm is welded, the length of the welding gun for the narrow gap welding is more than 120 mm. The length of the vertical welding seam can reach 1 meter or several meters, and a welding gun with the length of 1 meter or several meters cannot be manufactured, so although the narrow gap welding is known to be energy-saving, a lot of working hours and welding materials can be saved, the existing narrow gap welding equipment cannot be used in the vertical welding, which is a disadvantage of the market narrow gap welding equipment.

Another disadvantage in narrow gap welding is: the 'run-on plate' and the 'run-on plate' are required to be connected at two ends of a welding seam, the run-on plate and the 'run-on plate' are required to be cut off after welding, the workload is large, and the welding production speed is slowed down.

Therefore, it is necessary to provide a new vertical welding process, which has a smaller amount of wire filling than the electrogas welding, thus the welding period is shorter than the electrogas welding, the consumed welding wire is less than the electrogas welding, the thickness of the welded steel plate is thicker than the electrogas welding, and what is more concerned is that the process generates less heat than the electrogas welding, thus solving the problem that the welding engineer troubles for many years.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a novel vertical welding equipment combines narrow gap welding equipment and electroslag welding or the advantage of electro-gas welding equipment, welds with this equipment, and the overheated tendency of welding seam is little to can improve welding production speed.

In order to solve the technical problem, the utility model discloses take following technical scheme: a novel vertical welding device adopts a mechanical and control mechanism of electro-gas vertical welding, a welding gun of narrow gap welding, a gas pipe and a welding power supply to form the novel vertical welding device; the novel vertical welding equipment comprises a base plate, a welding gun, an air pipe, a rear baffle, a front baffle and a lifting mechanism; the welding gun mainly comprises a gun rod, a gun frame and a conductive nozzle, wherein the gun rod A or the gun rod B is an arc flat rectangular or rhombic section gun rod, the conductive nozzle is integrated or split and is a flat rectangular or rhombic section conductive nozzle, the welding gun is a single-wire welding gun or a double-wire welding gun, the double-wire welding gun is the welding gun A and the welding gun B, and the welding gun A comprises the gun rod A, the gun frame A and the conductive nozzle A; the welding gun B consists of a gun rod B, a gun frame B and a conductive nozzle B; the gun rod A or the gun rod B is arranged in the gun frame A or the gun frame B and is locked by a screw, the gun rods A or B and the conductive nozzle A or B of the gun A and the gun B are provided with wire running holes, the wire feeding holes in the integral A conductive nozzle or the integral B conductive nozzle are inclined holes, and the welding wire A and the welding wire B respectively penetrate through the wire feeding holes of the gun rod A and the gun rod B and enter the inclined wire feeding holes of the conductive nozzle A or the conductive nozzle B; the base plate is provided with two grooves, the gun rack A and the gun rack B are respectively arranged in the two grooves of the base plate and can slide in the grooves of the base plate, and the gun rack A or the gun rack B can be respectively locked with the base plate by bolts; the gas pipe is arranged between the welding gun A and the welding gun B; the rear baffle and the front baffle are arranged at two longitudinal ends of the welding line; the rear baffle and the front baffle are made of flexible temperature-resistant materials.

Further, the welding wire A10 or the welding wire B11 respectively penetrates through a wire feeding hole 21 of the gun rod A6 or the gun rod B7, enters a wire feeding hole 21 of the conductive nozzle A8 or the conductive nozzle B9, then penetrates through the wire feeding hole 21 of the conductive nozzle A8 or the conductive nozzle B9 and respectively points to a point a or a point B; the point a is the intersection of the welding wire A10 pointing to the B weldment 2 and the C weldment 3 or the upper weld 14; the point B is the intersection of the welding wire 11B pointing to the upper welding seam 14 of the A weldment 1 and the C weldment 3; the positions a and b are the shortest distance between the point a and the point b.

Further, the split type A conductive nozzle 8 or the split type B conductive nozzle 9 is split from top to bottom to form a first part 8a and a second part 8B or a third part 9a and a fourth part 9B, a semicircular groove with a half diameter of 0.9-1.0 mm is processed on each split surface, and the semicircular grooves of the first part 8a and the second part 8B or the third part 9a and the fourth part 9B are respectively combined to form a circular wire passing hole 21.

Further, the split type A conductive nozzle 8 or the split type B conductive nozzle 9 is split from top to bottom in an arc surface to form a first part 8a and a second part 8B or a third part 9a and a fourth part 9B, a semicircular groove with a half diameter of 0.9-1.0 mm is processed on each split arc surface, and the semicircular grooves of the first part 8a and the second part 8B or the third part 9a and the fourth part 9B are respectively combined to form a circular wire moving hole 21.

Furthermore, the flexible temperature-resistant material is a square ceramic fiber rope, an asbestos rope or other temperature-resistant products; the flexible temperature-resistant materials of the rear baffle and the front baffle are respectively hung on the rear baffle shaft and the front baffle shaft; the welding gun A, the welding gun B, the rear baffle shaft and the front baffle shaft are connected with a lifting mechanism, the welding gun A, the welding gun B, the rear baffle shaft and the front baffle shaft are lifted simultaneously under the action of the lifting mechanism along with the gradual rising of a welding seam under the control of the control unit, and the ceramic fiber ropes are fed more by the rising of the rear baffle shaft and the front baffle shaft.

Furthermore, two ends of the substrate are respectively provided with a rotating shaft; the welding gun A and the welding gun B are arranged above the welding seam, move from the initial end of the welding seam and are welded to the tail end of the welding seam, when the welding gun A and the welding gun B are arranged at the initial end of the welding seam, the base plate rotates clockwise around the rotating shaft, the head of the welding gun is inclined, and the welding wire A, the arc A, the welding wire B and the arc B can point to the outermost end of the initial end of the welding seam; when the welding gun A and the welding gun B are at the tail end of the welding seam, the base plate rotates anticlockwise around the rotating shaft, the head of the welding gun is inclined, and the welding wire A, the welding wire B and the welding wire B can point to the outermost end of the tail end of the welding seam.

Further, the gun rod A and the gun rod B are made of copper or chromium-zirconium-copper or brass or other copper alloys, and a layer of ceramic is sprayed on the surfaces of the gun rods A and B; the conductive nozzle A and the conductive nozzle B are made of copper, chromium-zirconium-copper, tungsten-copper or other copper alloys, a layer of ceramic is sprayed on the outer surface of the conductive nozzle A and the conductive nozzle B, and the lower ends of the gun rod A and the gun rod B are in a stepped shape; the upper ends of the A conductive nozzle and the B conductive nozzle are stepped, the A conductive nozzle and the B conductive nozzle are connected by a screw II, and a screw passing hole 21 is formed in the gun rod A; the structure and the material of the welding gun B are the same as those of the welding gun A; protective gas is fed into the gas pipe.

Furthermore, two ends of the wider surface of the A gun rod 6 in the A welding gun 4 are respectively inwards cut off to form a part, so that the A gun rod 6 of the A welding gun 4 is concave, a grooved insulating block 23 is respectively embedded in the concave parts at two sides of the A gun rod 6 of the A welding gun 4, and the two insulating blocks 23 are screwed together by a thin wire 24 at the inner groove; a plurality of insulating blocks 23 are embedded in the gun rod A6 and the gun rod B7, and the gun rod B7 is treated in the same way as the gun rod A6.

Further, argon gas is sent into a gas pipe of the novel vertical welding equipment, tungsten electrodes are arranged in the A conductive nozzle 8 and the B conductive nozzle, and then the tungsten electrode argon arc narrow-gap vertical welding can be carried out; the welding flux is fed into the air pipe 25, and the submerged arc narrow gap vertical welding can be carried out.

The utility model has the advantages that:

the utility model discloses combine narrow gap welding and electroslag welding or the advantage of electrogas vertical welding, remove to create a novel vertical welding method, including electrogas vertical welding and narrow gap welding's technology and equipment, double-wire narrow clearance vertical welding machine promptly, this equipment can be used to the flat welding also can be used to the vertical welding.

The groove of the narrow gap welding is an I-shaped groove, the welding wire filling amount of the narrow gap vertical welding process is less than that of the electrogas welding, so that the welding period is shorter than that of the electrogas welding, the consumed welding wire is less than that of the electrogas welding, and the narrow gap vertical welding generates less heat than the electrogas welding, so that the overheating tendency is small, and more importantly: the molten bath of narrow gap welding is a punctiform molten bath that the diameter is about 10 millimeters, and the molten bath of electrogas welding is the molten bath of a rectangular shape, and for example the steel plate is thick 70 millimeters, and the length of molten bath just is 70 millimeters, therefore the heat of electrogas welding is great than narrow gap vertical welding greatly, consequently the utility model discloses a new vertical welding method's overheated tendency is little than the electrogas welding method. The utility model provides a many years be difficult to around welding engineer's a difficult problem.

The existing electrogas welding machine with a single welding gun can only weld steel plates with the thickness not more than 40mm, the existing electrogas welding machine with double welding guns can only weld steel plates with the thickness not more than 80mm, and the length of a welding seam of narrow gap welding is almost unlimited, so that the thickness of the steel plates welded by the narrow gap vertical welding process is almost unlimited, and the steel plates can be welded thicker than the steel plates welded by electrogas welding.

Two types of rods and racks of rectangular and diamond cross-sections are provided for selection, the diamond shaped rod and rack of fig. 10 occupies less space than the rectangular rod and rack of fig. 9, resulting in narrower and narrower seams for narrow gap welds, indicating less welding wire fill, and thus less welding wire and labor.

The utility model discloses remove "run-on plate" and "receipts arc board" in the present narrow gap welding, improve welding production speed.

The utility model provides a narrow gap welding gun can also be moved up and down along with the rising of molten bath face, can weld the very long vertical weld of welding seam, consequently, same welding machine can weld the even weld and also can weld the vertical weld.

Because at the top department and the end department of welding seam, the molten iron is outer to be taken, though has the run-on board and receipts arc board, but run-on board and receipts arc board are very long, and is bulky, cuts off the back, and the tangent plane is also unsmooth, need reprocess, the utility model discloses a square ceramic fiber rope is used as the baffle, can be along with the rising of welding seam, is drawn into the ceramic fiber rope continuously like the rolling slats door, simple structure, and welding seam and ceramic fiber rope contact position moreover, the surface is smooth, generally need not reprocess.

In order to enable the wire feeding holes in the conductive nozzle to simultaneously incline downwards, towards the conductive nozzle B9 and towards the weldment B2, the electric arcs of two welding wires respectively point to the place a and the place B of the weldment so as to enhance the heating of the electric arcs on the side wall of the weldment and ensure the good fusion of the side wall.

The utility model provides a conductive nozzle with three structures, which is integral and has two split bodies. The split type conductive nozzle can enable welding wires in the conductive nozzle to be more accurately and respectively directed to the a or the b or the a or the b of the weldment to strengthen the heating of the side wall of the weldment by the electric arc, and ensure the good fusion of the side wall, but the split type conductive nozzle is complex to process, and the conductive nozzle is divided into two parts, i.e., 8a,8b and 9a and 9b, so that an arc-shaped wire passing hole is convenient to process. The integral conductive nozzle is simple to process, the straight inclined hole can be drilled by a drill bit, and the inclined hole can also enable the welding wire in the conductive nozzle to respectively point to the place a or the place b of the weldment.

The method is characterized in that a layer of ceramic is sprayed on the surface of a welding gun, and a plurality of insulating blocks are added on a welding gun rod, and the two measures are both used for preventing the welding gun rod from being in accidental contact with a weldment to cause short circuit between the welding gun rod and the weldment and burn the welding gun rod. The utility model discloses an insulating block is taut with "rope", is in order to reduce welder's thickness, does not increase the width in clearance.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic view of a weldment for electroslag welding or electrogas welding or narrow gap welding;

FIG. 2 is a schematic view of an electroslag welding structure;

FIG. 3 is a left side view of FIG. 2;

FIG. 4 is a top view of FIG. 2;

FIG. 5 is a schematic view of a conventional electrogas welding structure;

FIG. 6 is a left side view of FIG. 5;

FIG. 7 is a top view of FIG. 5;

FIG. 8 is a schematic view of the gun rod structure of the novel vertical welding device;

FIG. 9 is a left side view of the square gun bar of FIG. 8;

FIG. 10 is a left side view of the rhombus gun rod of FIG. 8;

FIG. 11 is a top view of FIG. 8;

FIG. 12 is a position diagram of the arc position a of the conductive nozzle A of the welding wire A and the arc position B of the conductive nozzle B of the welding wire B in example 1;

FIG. 13 is a left side view of the conductive nozzle A of FIG. 12;

FIG. 14 is a top view of FIG. 12;

FIG. 15 is a view of a part of the conductive tip 8b of example 1A;

FIG. 16 is a left side view of FIG. 15;

FIG. 17 is a top view of FIG. 15;

FIG. 18 is a drawing showing a part of a conductive tip 8a in example 1;

FIG. 19 is a left side view of FIG. 18;

FIG. 20 is a top view of FIG. 18;

FIG. 21 is a position diagram of the arc position a of the conductor A of the welding wire A and the arc position B of the conductor B of the welding wire B in example 2;

FIG. 22 is a left side view of the conductive nozzle A of FIG. 21;

FIG. 23 is a top view of FIG. 21;

FIG. 24 is a view of the A conductive tip 8 b;

FIG. 25 is a left side view of FIG. 24;

FIG. 26 is a top view of FIG. 24;

FIG. 27 is a view of a part of the conductive tip 8 a;

FIG. 28 is a left side view of FIG. 27;

FIG. 29 is a top view of FIG. 27;

FIG. 30 is an assembly view of the gun shaft and insulator block with the cord;

FIG. 31 is a perspective view of the assembled gun shaft and insulating block with cord;

FIG. 32 is a top view of the assembly of the gun shaft and insulator block with the cord;

FIG. 33 is a view showing the assembly of the gun shaft and the insulating block;

FIG. 34 is a left side view of FIG. 33;

FIG. 35 is a top view of FIG. 33;

FIG. 36 is a detail view of the gun shaft;

FIG. 37 is a left side view of FIG. 36;

FIG. 38 is a top view of FIG. 36;

FIG. 39 is a detail view of an insulator block;

FIG. 40 is a left side view of FIG. 39;

fig. 41 is a top view of fig. 39.

In the figure: 1-A welding piece, 2-B welding piece, 3-C welding piece (backing plate), 4-A welding gun, 5-B welding gun, 6-A gun rod, 7-B gun rod, 8-A conducting tip, 9-B conducting tip, 10-A welding wire, 11-B welding wire, 12-A arc, 12 a-slag, 13-B arc, 14-welding line, 15-rear baffle, 15 a-rear baffle shaft, 16-front baffle, 16 a-front baffle shaft, 20-bolt, 21-thread hole, 23-insulating block, 24-rope, 25-air pipe, 26-A gun frame, 27-B gun frame, 28-rotating shaft, 29-base plate, 30-bolt and 31-bolt.

Detailed Description

The technical solution of the present invention will be described clearly and completely through the following detailed description

Example 1

The utility model relates to a novel vertical welding device, which is improved by referring to the mechanical and control mechanism of the gas-electric vertical welding and the welding gun and power supply of the narrow gap welding, thus forming a novel welding device; and named as a narrow-gap vertical welder for welding.

As shown in fig. 8-20 and fig. 30-41, the novel vertical welding device of the present invention comprises a welding gun, a gas pipe, a rear baffle 15, a front baffle 16 and a lifting mechanism. The welding gun mainly comprises a gun rod, a gun frame and a conductive nozzle, wherein the gun rod A6 or the gun rod B7 is arc-shaped, the section of the gun rod A6 is a rectangular or rhombic flat gun rod, and the section of the gun rod B7 can also be a rectangular or rhombic flat gun rod; the gun rod A6 and the gun rod B7 are respectively arranged in a gun rack A26 or a gun rack B27 with rectangular or rhombic cross sections and are locked by screws 20, and the conductive nozzle A8 or the conductive nozzle B9 is integrated or split and has a rectangular or rhombic flat conductive nozzle; wire feeding holes 21 are formed in the gun rod A6 or the gun rod B7 and the conductive nozzle A8 or the conductive nozzle B9, the wire feeding holes 21 in the conductive nozzle A8 or the conductive nozzle B9 are inclined holes, and the welding wire A10 and the welding wire B11 respectively penetrate through the wire feeding holes 21 of the gun rod A6 and the gun rod B7 and enter the inclined wire feeding holes 21 of the conductive nozzle A8 or the conductive nozzle B9; the base plate 29 is provided with two grooves, the A gun frame 26 of the A welding gun 4 and the B gun frame 27 of the B welding gun 5 are respectively arranged in the two grooves of the base plate 29 and can slide in the grooves of the base plate 29, the A gun frame 26 or the B gun frame 27 can be respectively locked with the base plate 29 by bolts 30, and the air pipe 25 is fixedly arranged in the base plate 29 and is positioned between the A gun frame 26 and the B gun frame 27; the rear baffle 15 and the front baffle 16 are made of flexible temperature-resistant materials, and the flexible temperature-resistant materials are ceramic fiber ropes, asbestos ropes or other temperature-resistant products.

The two ends of the base plate 29 of the utility model are respectively provided with a rotating shaft 28; meanwhile, the utility model discloses a A welder 4 and B welder 5 move from the top of welding seam 14 and weld to the end of welding seam 14 simultaneously, A welder 4 or B welder 5 are in the top of welding seam 14 department, because A arc 12 and B arc 13 can not reach the top of welding seam 14, consequently, will make base plate 29 rotate clockwise around pivot 28, so that the welder head inclines, make A welding wire 10 and A arc 12 and B welding wire 11 and B arc 13 can point to the outermost end of top welding seam 14, so as to avoid here to produce and not melt through, A welder 4 and B welder 5 are at the end of welding seam 14, will make base plate 29 rotate around pivot 28 anticlockwise, so that the welder head inclines, make A welding wire 10 and A arc 12 and B welding wire 11 and B arc 13 can point to the outermost end of end welding seam 14, so as to avoid here to produce and not melt through.

The rear baffle 15 and the front baffle 16 in the gas-electric vertical welding mechanical mechanism of the utility model are made of flexible temperature-resistant materials; the flexible temperature-resistant material is a ceramic fiber rope, an asbestos rope or other temperature-resistant products. In this embodiment, the rear baffle 15 and the front baffle 16 are made of ceramic fiber ropes. The ceramic fiber ropes of the rear baffle 15 and the front baffle 16 of the utility model are respectively hung on the rear baffle shaft 15a and the front baffle shaft 16 a; the welding gun A4, the welding gun B5, the rear baffle shaft 15a and the front baffle shaft 16a are connected with a lifting mechanism, the welding gun A4, the welding gun B5 and the rear baffle shaft 15a and the front baffle shaft 16a which are composed of the ceramic fiber ropes are lifted simultaneously under the action of the lifting mechanism along with the gradual lifting of the welding seam 14 under the control of the control unit, and the ceramic fiber ropes are fed more by the lifting of the rear baffle shaft 15a and the front baffle shaft 16 a.

The utility model discloses a A welder 4's A conductive nozzle 8 is split type, comprises part one 8a and part two 8B two parts, B welder 5's B conductive nozzle 9 is the components of a whole that can function independently, comprises part three 9a and part four 9B two parts, as shown in fig. 12-20, with A conductive nozzle 8 or B conductive nozzle 9 from last down inclined plane split, form part one 8a and part two 8B or part three 9a and part four 9B two parts, process out the semicircle groove that half warp is 0.9 to 1.0mm on every split face, part one 8a and part two 8B two parts or part three 9a and part four 9B two parts's semicircle groove combine to form a circular wire walking hole 21 respectively, A welding wire 10 or B welding wire 11 passes from wire walking hole 21, can realize that the wire walking hole 21 of A conductive nozzle 8 simultaneously "down", "to B conductive nozzle 9", "to B weldment 2", to three direction incline to three direction, make A welding wire 10 or B welding wire 11 and part two parts of arc welding wire 14 of a direction (14) can realize the crossing in the arc welding seam crossing with the direction (A welding wire 1) and the direction (14) the piece of the downward welding wire of the welding seam (14) and the piece of the arc track of the part A welding piece (14) can realize simultaneously. If the welding wire A10 does not point to the point a, the processing track of the semicircular groove with the half diameter of 0.9-1.0 mm is changed or the splitting surface is changed from a plane to an arc surface, so that the welding wire A10 points to the point a. The same is done so that the B wire 11 is directed to point B.

The welding wire in the A conductive nozzle can simultaneously downwards, downwards towards the B conductive nozzle 9 and slants towards the B weldment 2, and meanwhile, the welding wire in the B conductive nozzle can simultaneously downwards, downwards towards the A conductive nozzle 9 and slants towards the A weldment 1, so that electric arcs of the two welding wires respectively point to the positions a and B of the weldment to strengthen the heating of the electric arcs on the side wall of the weldment and ensure the good fusion of the side wall.

The gun rod A6 and the gun rod B7 of the utility model are made of copper, chrome zirconium copper, brass, tungsten copper or other copper alloys, and the surface is coated with a layer of ceramics; the A conductive nozzle 8 and the B conductive nozzle 9 are made of copper, chromium, zirconium, copper, tungsten, copper or other copper alloys, a layer of ceramic is sprayed on the outer surface of the A conductive nozzle, and the lower ends of the A gun rod 6 and the B gun rod 7 are in a step shape; the upper ends of the A conductive nozzle 8 and the B conductive nozzle 9 are in a ladder shape and are connected by a second screw 31, and the A welding wire 10 or the B welding wire 11 respectively passes through a wire feeding hole 21 of the A gun rod 6 or the B gun rod 7 and enters the wire feeding hole 21 of the A conductive nozzle 8 or the B conductive nozzle 9; the structure and the material of the welding gun B are the same as those of the welding gun A; an air pipe 25 is provided between the gun bar A6 and the gun bar B7, and a shielding gas is fed into the air pipe 25.

The utility model discloses a part is respectively inwards cut off at the both ends of the wider face of A rifle bar 6, makes this position of A rifle bar 6 form the indent, embeds a grooved insulating block 23 respectively in the indent of A rifle bar 6 both sides, twists two insulating blocks 23 together with filament 24 at the inner groove; a plurality of insulating blocks 23 are embedded in the A gun rod 6, and the B gun rod 7 is treated in the same way as the A gun rod 6.

Example 2

The difference from embodiment 1 is that in embodiment 2, the conductive tip 8a of the welding gun 4 a of the present invention is split and comprises two parts, i.e., a part one 8a and a part two 8B, and the conductive tip 9B of the welding gun 5B is split and comprises two parts, i.e., a part three 9a and a part four 9B, as shown in fig. 21-29, the conductive tip 8a or the conductive tip 9B is split from top to bottom in an arc shape to form two parts, i.e., a part one 8a and a part two 8B or a part three 9a and a part four 9B, and a semicircular groove with a half diameter of 0.9 to 1.0mm is formed on each split arc surface, the semicircular grooves of the two parts, i.e., the part one 8a and the part two 8B or the part three part 9a and the part four part 9B are combined to form a circular wire running hole 21, and the wire 10 a or the wire 11B passes through the wire running hole 21 and points to the point a or the point B, respectively. The wire feed hole 21 of the a conductive tip 8 can be tilted in the three directions so that the a welding wire 10 (the a arc 12 is directed to the intersection a of the B welding member 2 and the C welding member (backing plate) 3 or the upper welding seam 14) is tilted downward, the a conductive tip 8 and the a welding member 1 are tilted in the three directions so that the B welding wire 11 (the B arc 13) is directed to the intersection B of the a welding member 1 and the C welding member (backing plate) 3 or the upper welding seam 14, and if the a welding wire 10 is not directed to the point a, the machining locus of the semicircular groove having a radius of half 0.9 to 1.0mm is changed or the curvature of the arc surface is changed so that the a welding wire 10 is directed to the point a, the same operation is performed so that the B welding wire 11 is directed to the point B.

Example 3;

the difference from the embodiment 1 is that in the embodiment 3, the conductive tip a 8 or the conductive tip B9 is integral, the wire feeding hole 21 in the conductive tip a 8 or the conductive tip B9 is an inclined hole, and the welding wire a 10 and the welding wire B11 respectively pass through the wire feeding holes 21 of the gun rods a 6 and B7 and enter the inclined wire feeding hole 21 of the conductive tip a 8 or the conductive tip B9.

Example 4;

the difference from example 1 is that in example 4, argon gas is fed into the gas pipe 25 of the welding equipment, and tungsten electrodes are mounted in the A conductive nozzle 8 and the B conductive nozzle 9, so that the "tungsten electrode argon arc narrow gap vertical welding" can be performed.

Example 5

The difference from example 1 is that in example 5, the welding apparatus described above can be used for "submerged arc narrow gap vertical welding" by feeding flux into the gas pipe 25.

The utility model discloses the mechanical system who refers to electroslag welding or electrogas welding carries out narrow gap welding to welding the mechanical system and the welder redesign of electroslag welding or electrogas welding according to the characteristics of welding between narrow, make narrow clearance become can carry out downweld and vertical welding by can only carrying out the downweld, keep electroslag welding or electrogas welding efficient advantage, it is big to have thoroughly overcome the welding heat of electroslag welding or electrogas welding simultaneously, it grows up easily to produce the crystalline grain, lead to welded joint toughness not up to standard, problem that important structure can't be used.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications or equivalent substitutions within the spirit and scope of the present invention, and such modifications or equivalent substitutions should also be considered as falling within the scope of the present invention.

Claims (9)

1. The utility model provides a novel vertical welding equipment which characterized in that: the novel vertical welding equipment is formed by adopting a mechanical and control mechanism of the electro-gas vertical welding, a welding gun for narrow gap welding, a gas pipe and a welding power supply; the novel vertical welding equipment comprises a base plate, a welding gun, an air pipe, a rear baffle, a front baffle and a lifting mechanism; the welding gun mainly comprises a gun rod A, a gun rod B, a gun rack A, a gun rack B and a conductive nozzle, wherein the cross section of any one of the gun rod A and the gun rod B is an arc flat rectangular or rhombic cross section; the electric conduction nozzle is integrated or split, and is an electric conduction nozzle with a flat rectangular or rhombic section, the welding gun is a single wire welding gun or a double wire welding gun, the double wire welding gun is an A welding gun (4) and a B welding gun (5), and the A welding gun (4) consists of an A gun rod (6), an A gun frame (26) and an A electric conduction nozzle (8); the welding gun B (5) consists of a gun rod B (7), a gun frame B (27) and a conductive nozzle B (9); the A gun rod (6) or the B gun rod (7) is arranged in an A gun frame (26) or a B gun frame (27) and locked by a screw (20), wire feeding holes (21) are formed in the A gun rod (6) of the A welding gun (4) and the B welding gun (5) or in the B gun rod (7) and the A conductive nozzle (8) or the B conductive nozzle (9), wire feeding holes (21) in the integrated A conductive nozzle (8) or the B conductive nozzle (9) are inclined holes, and an A welding wire (10) and a B welding wire (11) respectively penetrate through the wire feeding holes (21) of the A gun rod (6) and the B gun rod (7) and enter the inclined wire feeding holes (21) of the A conductive nozzle (8) or the B conductive nozzle (9); the base plate (29) is provided with two grooves, the A gun rack (26) and the B gun rack (27) are respectively arranged in the two grooves of the base plate (29) and can slide in the grooves of the base plate (29), and the A gun rack (26) or the B gun rack (27) is respectively locked with the base plate (29) by bolts (30); the gas pipe (25) is arranged between the welding gun A (4) and the welding gun B (5); the rear baffle and the front baffle are arranged at two longitudinal ends of the welding line; the rear baffle and the front baffle are made of flexible temperature-resistant materials.

2. A novel vertical welding device according to claim 1, characterized in that: the welding wire A (10) or the welding wire B (11) respectively penetrates through a wire feeding hole (21) of the gun rod A (6) or the gun rod B (7), enters the wire feeding hole (21) of the conductive nozzle A (8) or the conductive nozzle B (9), then penetrates out of the wire feeding hole (21) of the conductive nozzle A (8) or the conductive nozzle B (9), and points to a point a or a point B respectively; the point a is the intersection of the welding wire A (10) pointing to the B weldment (2) and the C weldment (3) or the upper weld joint (14); the point B is the intersection of the welding wire B (11) pointing to the weldment A (1) and the weldment C (3) or the upper welding seam (14); the a and b positions are the shortest distance between points a and b.

3. A novel vertical welding device according to claim 1 or 2, characterized in that: the split type A conductive nozzle (8) or B conductive nozzle (9) is split from top to bottom to form a first part (8 a) and a second part (8B) or a third part (9 a) and a fourth part (9B), a semicircular groove with a half diameter of 0.9-1.0 mm is processed on each split surface, and the semicircular grooves of the first part (8 a) and the second part (8B) or the third part (9 a) and the fourth part (9B) are respectively combined to form a circular wire running hole (21).

4. A novel vertical welding apparatus according to claim 1 or 2, characterized in that: the split type A conductive nozzle (8) or B conductive nozzle (9) is split from top to bottom in an arc surface manner to form a first part (8 a) and a second part (8B) or a third part (9 a) and a fourth part (9B), a semicircular groove with the half diameter of 0.9-1.0 mm is processed on each split arc surface, and the semicircular grooves of the first part (8 a) and the second part (8B) or the third part (9 a) and the fourth part (9B) are respectively combined to form a circular wire moving hole (21).

5. A novel vertical welding apparatus according to claim 1, wherein: the flexible temperature-resistant material is a square ceramic fiber rope or an asbestos rope; the flexible temperature-resistant materials of the rear baffle (15) and the front baffle (16) are respectively hung on a rear baffle shaft (15 a) and a front baffle shaft (16 a); the welding gun A (4), the welding gun B (5), the rear baffle shaft (15 a) and the front baffle shaft (16 a) are connected with a lifting mechanism, the welding gun A (4), the welding gun B (5), the rear baffle shaft (15 a) and the front baffle shaft (16 a) are lifted simultaneously under the action of the lifting mechanism along with the gradual lifting of the welding seam (14) under the control of a control unit, and the ceramic fiber ropes are fed more by the lifting of the rear baffle shaft (15 a) and the front baffle shaft (16 a).

6. A novel vertical welding device according to claim 1, characterized in that: two ends of the base plate (29) are respectively provided with a rotating shaft (28); the welding gun A (4) and the welding gun B (5) are arranged above the welding seam (14) and move from the initial end of the welding seam (14) to be welded to the tail end of the welding seam (14), when the welding gun A (4) and the welding gun B (5) are arranged at the initial end of the welding seam (14), the base plate (29) rotates clockwise around the rotating shaft (28), the head of the welding gun is inclined, and the welding gun A (10) and the arc A (12) as well as the welding gun B (11) and the arc B (13) can point to the outermost end of the initial end of the welding seam (14); when the welding gun A (4) and the welding gun B (5) are arranged at the tail end of the welding seam (14), the base plate (29) rotates anticlockwise around the rotating shaft (28), the head of the welding gun is inclined, and the welding wire A (10) and the arc A (12) as well as the welding wire B (11) and the arc B (13) can point to the outermost end of the tail end of the welding seam (14).

7. A novel vertical welding device according to claim 1, characterized in that: the gun rod A (6) and the gun rod B (7) are made of copper, chromium, zirconium, copper or brass, a layer of ceramic is sprayed on the outer surface of the gun rod A (6) and the gun rod B (7), the conductive nozzle A (8) and the conductive nozzle B (9) are made of copper, chromium, zirconium, copper or tungsten copper, a layer of ceramic is sprayed on the outer surface of the gun rod A (6) and the gun rod B (7), and the lower ends of the gun rod A (6) and the gun rod B (7) are in a step shape; the upper ends of the A conductive nozzle (8) and the B conductive nozzle (9) are stepped and are connected by a second screw (31); the structure and the material of the welding gun B are the same as those of the welding gun A; protective gas is fed into the gas pipe (25).

8. A novel vertical welding device according to claim 1, characterized in that: the two ends of the wider surface of the gun rod A (6) in the gun A (4) are respectively inwards cut to form a part, so that the gun rod A (6) of the gun A (4) is provided with an inwards concave part, the inwards concave parts at the two sides of the gun rod A (6) of the gun A (4) are respectively embedded with an insulating block (23) with a groove, and the two insulating blocks (23) are screwed together by a thin wire (24) at the inner groove; a plurality of insulating blocks (23) are embedded in the gun rod A (6) and the gun rod B (7), and the gun rod B (7) and the gun rod A (6) are identical in structure.

9. A novel vertical welding device according to claim 1, characterized in that: argon is sent into a gas pipe (25) of the novel vertical welding equipment, and tungsten electrodes are arranged in the A conductive nozzle (8) and the B conductive nozzle (9) so as to carry out tungsten electrode argon arc narrow-gap vertical welding; the welding flux is fed into the air pipe (25), and the submerged arc narrow gap vertical welding can be carried out.

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