CN2465853Y

CN2465853Y - Location prewelding

Info

Publication number: CN2465853Y
Application number: CN 01211743
Authority: CN
Inventors: 王及元
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-26
Filing date: 2001-02-26
Publication date: 2001-12-19
Anticipated expiration: 2011-02-26

Abstract

The utility model relates to a positioning prewelding device, which comprises a plurality of portal frames, a guide pipe mechanism, a guiding mechanism, a welding seam adjusting mechanism and a clamping straightening mechanism, wherein, the welding seam adjusting mechanism is composed of two groups of rotating pipe machines which are respectively provided with the clamping straightening mechanism which is composed of a plurality of groups of clamping rollers, a plurality of groups of roller frames and a straightening pipe which is provided with a plurality of rollers which press at the slotted point of the inner wall of a steel pipe after the steel pipe enters; a welding mechanism is formed from a welding gun and a welding regulator which are connected with each other. The utility model has the advantages of continuous welding, flexible welding, accurate welding, etc.

Description

Position Tack Weld

The utility model relates to a kind of processing equipment of metal tube, particularly relates to a kind ofly in the production procedure of UOE ERW, the slotted pipe after the UOE moulding is carried out the Position Tack Weld of prewelding with sequential welding.

Position Tack Weld is the chief component of UOE heavy caliber vertical masonry joint pipe production line, is to produce the key equipment that is used for dedicated pipe such as oil, natural gas, coal gas.In the production process of heavy caliber steel pipes with straight, steel plate is pressed into O type socket by O type forcing press after once being pressed into the U type by the forming U shaped articles forcing press again, and the steel pipe that will crack again at last welds.At present domestic be used to weld crack that the automation degree of equipment of steel pipe is not high, technological process is discontinuous, the flexibility and the accuracy of welding are relatively poor, welding precision is not high, speed waits shortcoming slowly, make steel pipe yielding in welding process, even snap, influenced welding quality.

The purpose of this utility model provides a kind of welding flexibly, quick and precisely, and can guarantee the Position Tack Weld that steel pipe is indeformable, do not snap.

The purpose of this utility model realizes by following technical scheme, that is:

Position Tack Weld comprises a plurality of portal frames, conduit mechanism, weld seam guiding mechanism, guiding mechanism, clamping aligning mechanism, welding mechanism.A plurality of portal frames be arranged in parallel at intervals.Conduit mechanism is made up of by a plurality of active rolls of chain drive and the driven roll wheel of a plurality of no chain drives reductor.A plurality of active rolls and a plurality of passive running roller are along vertical setting of a plurality of portal frames, and part is arranged on the bottom in a plurality of portal frames.The steel pipe that cracks is transmitted and can be passed in a plurality of portal frames by a plurality of active rolls and a plurality of passive running roller.The weld seam guiding mechanism is made up of two groups of pipe rotating machines, be respectively equipped with running roller on two groups of pipe rotating machines, this running roller can hold up steel pipe and drive the steel pipe axial rotation under motor-driven under the effect of hydraulic cylinder, make directly over cracking of steel pipe forward to, after running roller on two groups of pipe rotating machines resets, steel pipe moves forward under the effect of a plurality of active rolls that chain drives, and guiding mechanism is started working simultaneously.Guiding mechanism is made of oil cylinder, connecting rod and directive wheel.Oil cylinder is arranged on the top near the portal frame of pipe rotating machine, one end of connecting rod is fixedlyed connected with oil cylinder piston, and the other end is fixedlyed connected with the wheel shaft of directive wheel, and directive wheel can drop to the place of cracking of steel pipe in the effect of oil cylinder piston, pipe seam is moved along a straight line, and enter clamping alignment district.Clamp and aligning mechanism, comprise that many groups clamp running roller and an alignment pipe.Each group clamps running roller and is installed on the roller frame, and each roller frame vertical equity respectively is arranged in a plurality of portal frames, and a plurality of screw rodb bases of being fixed on each roller frame and a plurality of portal frame madial walls that passed are fixedlyed connected by screw mandrel.The alignment pipe is horizontally set in the portal frame that clamps the alignment district, and fixedlys connected with the portal frame that is passed by steel plate.The upper end end face of alignment pipe is provided with a plurality of rollers, after steel pipe enters and clamps the alignment district, many groups clamp running roller and are clamped in respectively on the outer wall of steel pipe, the alignment pipe enters in the steel pipe, and by the commissure of the roller roof pressure on it at the steel pipe inwall, steel pipe is carried out the moulding finishing first time, make pipe seam reach welding requirements.After the front end of steel pipe advanced to the end of alignment pipe, steel pipe entered the weld zone.Welding mechanism is made up of welding gun, welding adjuster and welding machine seat.The welding machine seat is fixed on the side of weld zone, and the welding machine adjuster is fixed on the welding machine seat, and welding gun is connected with the welding machine adjuster, but welding machine adjuster Butt welding gun carries out each orientation adjustment.

The utility model has been owing to adopted the clamping aligning mechanism, and the steel pipe opposite side that cracks is accurately alignd, and guaranteed the correct shape of socket simultaneously.In addition, because can being adjusted automatically by the welding machine adjuster, the position of welding gun makes that welding is more flexible, accurate.The whole process flow continous-stable, reached the steel pipe Position Tack Weld continuously, accurately, purpose at a high speed.

Fig. 1 is the schematic diagram of a kind of embodiment of the utility model.Fig. 2 is the A-A cutaway view of Fig. 1.Fig. 3 is the B-B cutaway view of Fig. 1.The utility model is described in further detail below in conjunction with accompanying drawing.

Embodiment:

Position Tack Weld comprises 5 portal frames 1, conduit mechanism, guiding mechanism, weld seam guiding mechanism, clamps aligning mechanism, welding mechanism.Wherein, 5 portal frames 1 be arranged in parallel at intervals.Conduit mechanism is made up of by a plurality of active rolls 4 and a plurality of passive running roller 5 that chain 3 drives reductor 2, and a plurality of passive running rollers 5 are arranged on right bottom of rising in second to the 4th portal frame 1, and the steel pipe 6 that cracks is transmitted and can be passed in 5 portal frames 1 by a plurality of active rolls 4 and a plurality of passive running roller 5.The weld seam guiding mechanism is made up of two groups of pipe rotating machines 7, be respectively equipped with running roller 8 on two groups of pipe rotating machines 7, this running roller 8 can under the effect of hydraulic cylinder 9 hold up steel pipe 6 and drive steel pipe 6 rotations under motor-driven, make directly over cracking of steel pipe 6 forward to, after running roller on two groups of pipe rotating machines 7 resets, steel pipe 6 moves forward under the effect of a plurality of active rolls 4 that chain 3 drives, and guiding mechanism is started working simultaneously.Guiding mechanism is made up of oil cylinder 11, connecting rod 12 and directive wheel 13.Oil cylinder 11 is arranged on the top that first portal frame 1 is played on a left side, and an end of connecting rod 12 is fixedlyed connected with the piston of oil cylinder 11, and the other end is fixed a wheel carrier 14, and the wheel shaft of directive wheel 13 is fixed on the wheel carrier 14.Directive wheel 13 can drop to the place of cracking of steel pipe 6 in the effect of oil cylinder 11, pipe seam is moved along a straight line and enter into to clamp the alignment district.Clamp and aligning mechanism, comprise that 6 groups clamp 15,6 roller frames 16 of running roller and an alignment pipe 17.6 groups clamp running roller 15 and are installed in respectively on 6 roller frames 16.Wherein two roller frame 16 vertical equities are arranged on the both sides in second to the 5th portal frame 1, remaining 4 roller frame 16 vertical equities are arranged on the top in second to the 5th portal frame 1, and wherein two roller frames 16 are right respectively plays that other two roller frames 16 are arranged between third and fourth portal frame 1 between second and the 3rd and the 4th and the 5th portal frame 1.Each roller frame 16 respectively be fixed on the right screw rodb base 18 that rises on second to the 5th portal frame 1 sidewall and fixedly connected by screw mandrel 19.Alignment pipe 17 is horizontally set in the portal frame 1 that clamps the alignment district, and fixedlys connected with the portal frame 1 that is passed by sheet metal 20.The upper end end face of alignment pipe 17 is provided with a plurality of rollers 21, after steel pipe 6 enters and clamps the alignment district, alignment pipe 17 enters in the steel pipe, and by the commissure of roller 21 roof pressures on it at steel pipe 6 inwalls, right rise between second and the 3rd portal frame 1 clamping running roller 15 respectively roof pressure at the lateral wall of steel pipe 6 and the place of cracking, steel pipe is carried out the moulding finishing first time, make the pipe seam of steel pipe 6 reach welding requirements.When steel pipe 6 enters between third and fourth portal frame 1, for the ease of welding, between third and fourth portal frame two groups of top clamp running rollers 15 respectively roof pressure enter shaping area at steel pipe, play one group of commissure that clamps running roller 15 roof pressures at steel pipe 6 on top between the 4th and the 5th portal frame this moment on the right side; Welding mechanism is made up of welding gun 22, welding adjuster 23 and welding machine seat 10.Welding machine seat 10 is fixed on the side of weld zone, and welding machine adjuster 23 is fixed on the welding machine seat 10, and welding gun 22 is connected with welding machine adjuster 23, but welding machine adjuster 23 Butt welding guns 22 carry out each orientation adjustment.

Claims

1, Position Tack Weld, comprise a plurality of portal frames (1), conduit mechanism, guiding mechanism, weld seam guiding mechanism, clamp aligning mechanism, welding mechanism, a plurality of portal frames (1) be arranged in parallel at intervals, conduit mechanism is made up of by a plurality of active rolls (4) and a plurality of passive running roller (5) that chain (3) drives reductor (2), and a plurality of passive running rollers (5) are arranged on right bottom of rising in second to the 5th portal frame (1), steel pipe (6) is transmitted and can be passed in a plurality of portal frames (1) by a plurality of active rolls (4) and a plurality of passive running roller (5), it is characterized in that:

A, weld seam guiding mechanism are made up of two groups of pipe rotating machines (7), are respectively equipped with the running roller (8) that steel pipe (6) can be held up and drives steel pipe (6) axial rotation on two groups of pipe rotating machines (7);

B, clamp and aligning mechanism, comprise that many groups clamp running roller (15), a plurality of roller frames (16) and an alignment pipe (17), a plurality of clamping running rollers (15) are installed in respectively on a plurality of roller frames (16), a plurality of roller frames (16) vertical equity is arranged in other a plurality of portal frames (1) except that first portal frame of right side (1), and a plurality of screw rodb bases (18) fixing on each roller frame (16) and a plurality of portal frames (1) sidewall that is passed are fixedlyed connected by screw mandrel (19), alignment pipe (17) is horizontally set in the portal frame (1) that clamps the alignment district, and fixedly connected with the portal frame that is passed (1) by sheet metal (20), be equiped with a plurality of rollers (21) on the upper end end face of alignment pipe (17), after steel pipe enters and clamps the alignment district, alignment pipe (17) enters in the steel pipe, and by the commissure of roller (21) roof pressure on it at steel pipe (6) inwall, many groups clamp running roller (15) difference roof pressure reaches weld seam on the lateral wall of steel pipe (6) both sides, welding finish enter shaping area after, many groups clamp running rollers (15) respectively roof pressures on the outer wall and weld seam of steel pipe (6);

C, welding mechanism are made up of welding gun (22), welding adjuster (23) and welding machine seat (10), welding machine seat (10) is fixed on the side of weld zone, welding machine adjuster (23) is fixed on the welding machine seat (10), welding gun (22) is connected with welding machine adjuster (23), welding machine adjuster (23) but Butt welding gun (22) carries out each orientation adjustment.