CN2273635Y

CN2273635Y - Automatic welding operation machine for full position welding pipeline

Info

Publication number: CN2273635Y
Application number: CN 96207358
Authority: CN
Inventors: 张勇
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-04-02
Filing date: 1996-04-02
Publication date: 1998-02-04
Anticipated expiration: 2006-04-02

Abstract

The utility model relates to an automatic welding operation machine for full position welding pipeline. A master-slave mode computation respectively controls an ambulation motor, a welding power supply, an arc regulated jacking motor, an X shaft feeding motor and an electric pole swinging motor. The parallel angle between a machine head and a work piece welding port can be adjusted through a slight adjustment device on a lead ring. The welding process is that the master-slave mode computer realizes automatic control on all the welding parameters, so that the welding power supply outputs pulse current according to the process requirement; the ambulation motor and a wire feeding motor both run according to certain program; the automatic welding for full position is realized under the monitor of a monitoring system. The utility model has good welding quality and high efficiency.

Description

The automatic manipulator of pipeline all-position

The utility model relates to a kind of arc welding machine, particularly a kind of pipeline all-position automatic welding machine.

U.S. Ya Ke company produces and has sold a kind of CMC pipeline welding machine, it has the walking mechanism and the source of welding current, master computer is connected with movable motor, the source of welding current, wire feeding motor, lifting control motor, X-axis feeding control motor, electrode swing motor respectively, the master computer while is accepted instruction and initialize data with the button on the control box far away, is fixing camera monitor at electrode swing mechanism front end.This kind pipeline welding equipment replacement some artificial inaccessiable fields, as some high temperature, the hyperbaric environment in nuclear industry, power plant construction, boiler for producing.But this kind equipment still comes with some shortcomings, as: this kind equipment can only rotate along a direction in welding process, can not contrary send, promptly can not carry out two-way welding, this has just reduced production efficiency, and has increased and open arc, receive the arc number of times, has influenced product quality to a certain extent.When movable motor is gone to the pipeline low spot,, equally also can directly influence welding quality because the gravity effect makes motor and interorbital produce error.Head causes plumb joint to depart from cross-section of pipeline in the skew that also can occur when steel pipe is walked vertically, and welding quality is reduced.

The purpose of this utility model is to provide a kind of welding quality good, the automatic manipulator of the pipeline all-position that welding precision is high.

The purpose of this utility model realizes by following structure: the automatic manipulator of a kind of pipeline all-position, have the walking mechanism 1 and the source of welding current 2, master computer 12 respectively with movable motor 13, the source of welding current 2, wire feeding motor 15, lifting control motor 16, X-axis feeding control motor 17, electrode swing motor 18 is electrically connected, master computer simultaneously with control box 14 far away on button 19 and the operation board 20 on the main frame be electrically connected, and by button 19 or 20 acceptance instruction and initialize datas, fixing camera monitor 11 at electrode swing mechanism 9 front ends, fixing wire feeder 6 on the walking mechanism 1, walking mechanism 1 is positioned on the lead ring 5, a plurality of micro-adjusting mechanisms 4 are arranged on the lead ring, micro-adjusting mechanism 4 is between workpiece 3 and lead ring 5, walking mechanism 1 top is installed with X-axis feed mechanism 7, fix arc voltage at an end of X-axis feed mechanism 7 and regulating elevating mechanism 8, have electrode swing mechanism 9 on this elevating mechanism 8, automatic hoisting mechanism 8 is the hinged formation of connecting rod slider mechanism and rolling slide plate 28 centers, be that electric machine main shaft is fixedlyed connected with connecting rod 22, connecting rod 22 other ends and sliding sleeve 37 are slidingly matched, sliding sleeve 37 is hinged on slide plate 28 centers, and slide plate 20 peripheries have guide wheel 23.

The utility model has realized that computer-controlled all position automatic welding connects, and has avoided the fluctuation of the product quality that human factor causes, and makes welding quality stable, and welding process is easy to monitoring.Lead ring structure of the present utility model can guarantee that welding head moves all the time in the pipeline transversal plane, when being installed, passes through lead ring the distance of detector between micro-adjusting mechanism detection lead ring and weld bond above the lead ring, and, guarantee to be parallel to the weld bond walking after welding head is installed by after the adjusting of fine setting leading screw.The problem that elevating mechanism occurs easily is that the precision low-response is slow, and there is a gap, especially when all-position welding, the variation in gap causes weld defect, what the utility model adopted is the hinged formation of connecting rod sliding sleeve and rolling slide plate center, both very big stroke can be obtained, very high dynamic response can be guaranteed again, and no horizontal length travel in lifting process.Another characteristics of the present utility model are: welding torch can wraparound changes center line and infinitely rotates, it can satisfy welding head counterclockwise, walking clockwise, two-wayly carry out two-way welding during for silk, raise the efficiency nearly one times than unidirectional welding.Owing to newly in the revolution of the utility model electrode axis and welding torch become certain inclination angle, when welding torch main shaft time rotational, promptly can drive the left and right swing of electrode, groove both sides penetration satisfies technological requirement when guaranteeing to weld.General wire-feed motor does not all have the silk warning device, and therefore, when welding automatically, operating personnel can't accurately determine to shut down the dress silk time, as shut down too early.The residue welding wire is more in the wire reel; very big waste will be caused; but as can before having silk, in time shut down; inevitably produce weld defect again, warning device of the present utility model can in time notify subsequent conditioning circuit to handle judgement; and carry out alarm; improve reliability of the present utility model, improve welding quality, cut the waste.

Fig. 1 is the utility model structural representation:

Fig. 2 is the utility model circuit connection structure figure:

Fig. 3 is the elevating mechanism structural representation:

Fig. 4 is the lead ring structural representation:

Fig. 5 is lead ring and walking mechanism annexation figure;

Fig. 6 is a wire feed warning device structural representation;

Fig. 7 is electrode swing mechanism and welding torch structure cutaway view;

Fig. 8 is the camera monitor structural representation;

Fig. 9 is cylindrical welding torch cover structure figure:

Figure 10 is a rectangle gas hood structural representation.

Below in conjunction with drawings and Examples the utility model is further described.

The utility model as shown in Figure 1, its walking mechanism 1 comprises drive motors, the gap motor that disappears and adjust the potentiometer of two motor speed differences, motor meshes through the output gear wheel and rack behind decelerator again.The source of welding current 2 is an inverter, fixing wire feeder 6 on the walking mechanism 1, by welded tube road 3 and 1 in walking mechanism a plurality of micro-adjusting mechanisms 4 are being arranged, micro-adjusting mechanism is between workpiece 3 and lead ring 5, lead ring structure 5 is symmetry or ship shape structure, have a plurality of fastening screw inspections 25 on the lead ring body 24, its underpart is equipped with micro-adjusting mechanism 4, this micro-adjusting mechanism 4 is made of fine setting leading screw 21 and tester 26, when deviation occurring, can regulate micro-adjusting mechanism 4, guarantee that head is parallel to the weld bond walking, micro-adjusting mechanism has auto-lock function.As shown in Figure 5, conical roller 29 contacts with lead ring 5 inclined planes, can guarantee head when running to the unspecified angle position, does not produce displacement or dislocation with firm connection of lead ring, the lead ring lateral surface has the guide effect parallel with weld bond, guarantees that plumb joint moves at cross-section of pipeline all the time.As shown in Figure 1, walking mechanism 1 top is equipped with X-axis feed mechanism 7, end at X-axis feed mechanism 7 is being fixed elevating mechanism 8, arc voltage elevating mechanism 8 is by the connecting rod slider mechanism and rolling slide plate 28 centers are hinged constitutes as shown in Figure 3, be that motor 16 main shafts are fixedlyed connected with connecting rod 22, connecting rod 22 is that an end and sliding sleeve 37 are slidingly matched, and sliding sleeve 37 is hinged on slide plate 28 centers, and slide plate 28 peripheries have guide wheel 23.Motor 16 direct drive link 22 swings, thus make sliding sleeve drive slide plate 28 upper and lower the moving that are installed on the slide plate 28, slide plate 28 is by several guide wheels 23 guiding and supporting and drive welding torch 10 upper and lower liftings, thus the realization arc voltage is regulated automatically.Skilful because of its construction profile warp, size is little, so can be used on crawl space, can satisfy weldering by technological requirement on full position.Electrode swing mechanism 9 as shown in Figure 7, it is positioned on the arc voltage elevating mechanism 8, the main shaft of electrode swing motor 18 is being fixed a gear 27, be fixed on the welding torch main shaft 10 with another gear of this gears engaged, as shown in Figure 7, the main shaft 10 of welding torch is being fixed the electrode 30 that becomes the inclination angle with main shaft, when driven by motor welding torch during with certain center forward and backward, electrode 30 is the left and right swing in center with certain position also thereupon, guarantee groove both sides penetration in the welding process like this, satisfied technological requirement.The motor-driven welding torch can infinitely rotate, satisfy two-way welding requirements, having saved idle running returns the time, improved nearly one times of efficient, and reduced and opened arc, receipts arc number of times, because more in the possibility that opens arc, receipts acnode generation weld defect, therefore the positive and negative direction of this structure of the present utility model all can be implemented welding, thereby has improved welding quality.As shown in Figure 8, fixing camera monitor 11 in the elevating mechanism both sides, it can monitor bath shape, weldquality, and can realize remote welding control.Welding torch cover as shown in Figure 9 is cylindrical 35 structures, and it is suitable for the welding condition on surface, and the welding torch cover can also be rectangle 36 gas hood structures as shown in figure 10, and it is suitable for the welding condition in narrow gap, and the gas hood shape also can be ellipse or other shape.Be illustrated in figure 6 as the utility model wire feeder 6, it has a warning device, and its welding wire 32 is linked to be a loop with lead 33, has electric test device 34 in this loop, adopt two resilient contacts directly to contact with welding wire, when welding wire is delivered to last a few circle, because wire reel is an insulating materials, two contacts will begin insulation, judge by subsequent process circuit and carry out alarm this moment, to strengthen reliability of the present utility model, improve the quality, cut the waste.Provided circuit connecting relation figure of the present utility model as Fig. 2, master computer 12 is electrically connected with movable motor 13 sources of welding current 2, wire feeding motor 15, lifting control motor 16, X-axis feeding motor 17, electrode swing motor 18 respectively, master computer simultaneously with control box 14 far away on button 19 and the operation board 20 on the main frame is electrically connected, and accept to instruct and initialize datas by button 19 or operation board 20.Under the control of master computer, make walking mechanism, wire feeder, X-axis feed mechanism, arc voltage elevating mechanism, welding job is finished in the co-ordination of electrode swing mechanism.

Claims

1, the automatic manipulator of a kind of pipeline all-position, have the walking mechanism (1) and the source of welding current (2), master computer (12) respectively with movable motor (13), the source of welding current (2), wire feeding motor (15), lifting control motor (16), X-axis feeding control motor (17), electrode swing motor (18) is electrically connected, master computer simultaneously with control box far away (14) on button (19) and the operation board (20) on the main frame be electrically connected, and by button (19) or (20) acceptance instruction and initialize data, fixing camera monitor (11) at electrode swing mechanism (9) front end, it is characterized in that: fixing wire feeder (6) on the walking mechanism (1), walking mechanism (1) is positioned on the lead ring (5), a plurality of micro-adjusting mechanisms (4) are arranged on the lead ring, micro-adjusting mechanism (4) is positioned between workpiece (3) and the lead ring (5), walking mechanism (1) top is installed with X-axis feed mechanism (7), fix arc voltage at an end of X-axis feed mechanism (7) and regulating elevating mechanism (8), have electrode swing mechanism (9) on this elevating mechanism (8), automatic hoisting mechanism (8) is the hinged formation of connecting rod slider mechanism and rolling slide plate (28) center, be that electric machine main shaft is fixedlyed connected with connecting rod (22), connecting rod (22) other end and sliding sleeve (37) are slidingly matched, sliding sleeve (37) is hinged on slide plate (28) center, and slide plate (20) periphery has guide wheel (23).

2, the automatic manipulator of a kind of pipeline all-position according to claim 1, it is characterized in that: described lead ring structure (5) is: lead ring is symmetry or ship shape structure, have a plurality of fastening bolts (25) on the lead ring (24), its underpart is equipped with micro-adjusting mechanism (4), and this micro-adjusting mechanism (4) is made of fine setting leading screw (21) and tester (26).

3, the automatic manipulator of a kind of pipeline all-position according to claim 1 and 2, it is characterized in that: described electrode swing mechanism (9) is: be fixed on the main shaft of the electrode swing motor (18) on the elevating mechanism (8) and fixing a gear (27), be fixed on the welding torch main shaft (10) with another gear of this gears engaged.

4, the automatic manipulator of a kind of pipeline all-position according to claim 3 is characterized in that: described welding torch main shaft (10) end is being fixed the electrode (30) that becomes the inclination angle with main shaft (10).

5, according to claim 1 or the automatic manipulator of 2 or 3 described a kind of pipeline all-positions, it is characterized in that: described sending like mechanism (6) has a warning device, its welding wire (32) is linked to be a loop with lead (33), has electric test device (34) in this loop.

6, the automatic manipulator of a kind of pipeline all-position according to claim 1 is characterized in that: the gas hood of described welding torch main shaft (10) front end is cylindrical (35).

7, the automatic manipulator of a kind of pipeline all-position according to claim 1 is characterized in that: the gas hood of described welding torch (10) front end is replaceable to be rectangle (36).