CN201316874Y

CN201316874Y - Secondary line bond for welding pipelines

Info

Publication number: CN201316874Y
Application number: CNU2008201066966U
Authority: CN
Inventors: 水永财
Original assignee: MCC Jingtang Construction Co Ltd
Current assignee: MCC Jingtang Construction Co Ltd
Priority date: 2008-11-27
Filing date: 2008-11-27
Publication date: 2009-09-30
Anticipated expiration: 2018-11-27

Abstract

The utility model relates to a secondary line bond for welding pipelines, and belongs to the technical field of welding equipment. The secondary line bond aims to achieve the technical function that a secondary line is stably bonded and used for welding various pipelines with different diameters. The secondary line bond adopts the technical scheme that the secondary line bond comprises a base, a sliding sleeve, a sliding block, a lead screw, clamp arms, clamp arm supporting bases, a secondary line fixed bolt and a contact head; the lead screw, a sliding groove and the sliding block are mounted in the sliding sleeve; the sliding block is sleeved on the lead screw; a sliding block body is inserted in the sliding groove; the clamp arms are respectively arranged on two corresponding sides of the sliding sleeve, and the upper ends thereof are respectively connected with two lateral surfaces of the sliding block through a connecting link; the clamp arm supporting bases are fixedly welded on two sides of the base; the upper parts of the clamp arms are mounted on the clamp arm supporting bases through pin shafts; the contact head is connected to the base; and the secondary line fixed bolt is fixed on the contact head. The secondary line bond for welding the pipelines can drive the sliding block to vertically move through the transmission of the lead screw, thereby ensuring that the pipelines are tightly clamped and loosened by the clamp arms and ensuring the good contact of the secondary line; and meanwhile, the expansion range of the clamp arms can be suitable for the construction of the pipelines with different diameters.

Description

A kind of pipeline welding secondary line overlapper

Technical field

The device of lap welder secondary line belonged to technical field of welding equipment when the utility model related to a kind of pipeline welding.

Background technology

In pipeline welding, the secondary line of welding machine need be snapped on the pipeline, the long distance pipeline material mostly is high-strength line-pipe steel, and there is anticorrosive coat the pipeline outside, this kind material pipeline is to welding conditional request harshness, secondary line directly is connected with pipeline, and contacting badly influences welding quality and damage the pipeline mother metal easily.And existing secondary line overlapper volume ratio big, carry inconvenience, welded pipe line fixed diameter, the overlapper of a model can't be used on the multiple diameter pipeline.

Summary of the invention

Technical problem to be solved in the utility model provides the pipeline welding secondary line overlapper that a kind of secondary line overlap joint is firm, easy to use, can be used for multiple caliber welding.

The technical scheme that solves the problems of the technologies described above is:

A kind of pipeline welding secondary line overlapper, it is by base, slide cartridge, slide block, leading screw, jig arm, the jig arm supporting base, the secondary line set bolt, contact head is formed, slide cartridge vertically is connected with base, leading screw is installed in the slide cartridge, chute, slide block, leading screw, the axially parallel of chute and slide cartridge, slide block set is contained on the leading screw, the slide block center is a screw, screw thread is meshed with leading screw, the slide body of slide block both sides is embedded in the chute, jig arm is respectively in the corresponding both sides of slide cartridge, the upper end is connected with the two sides of slide block by connecting rod respectively, and the jig arm supporting base is fixedly welded on the both sides of base, and jig arm top is installed on the jig arm supporting base by bearing pin, contact head is connected on the base, and the secondary line set bolt is fixed on the contact head.

Above-mentioned pipeline welding secondary line overlapper has bearing block in the bottom of slide cartridge, and the leading screw lower end is contained in the bearing of bearing block, and the slide cartridge end cap is enclosed within the upper end of leading screw, and there is locking nut slide cartridge end cap top, and locking nut is meshed with leading screw.

Above-mentioned pipeline welding secondary line overlapper, an end of described connecting rod is that bearing pin is connected with slide block, the other end of connecting rod is connected for bearing pin with the jig arm upper end.

The pipeline welding secondary line overlapper of this structure, rotation by leading screw can drive slide block and move up and down, thereby make jig arm step up pipeline or unclamp, guaranteed that the secondary line contact is good, the amplitude of jig arm expansion simultaneously can adapt to the pipeline of different tube diameters, makes this product to use in the pipeline construction of multiple caliber.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

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

Mark is as follows among the figure: base 1, slide cartridge 2, slide block 3, leading screw 4, jig arm 5, jig arm supporting base 6, secondary line set bolt 7, contact head 8, bearing (ball) cover 9, bearing 10, bearing block 11, slide cartridge end cap 12, locking nut 13, chute 14, connecting rod 15, bearing pin 16, bearing pin 17, bearing pin 18

The specific embodiment

Show among the figure that the utility model is made up of base 1, slide cartridge 2, slide block 3, leading screw 4, jig arm 5, jig arm supporting base 6, secondary line set bolt 7, contact head 8.

Slide cartridge 2 vertically is positioned on the base 1, and leading screw 4, chute 14, slide block 3 are installed in the slide cartridge 2.The axially parallel of leading screw 4, chute 14 and slide cartridge 2.Slide block 3 is sleeved on the leading screw 4, and slide block 3 centers are screw, and screw thread is meshed with leading screw 4, and the slide body of slide block 3 both sides is embedded in the chute 14.

In the bottom of slide cartridge 2 bearing block 11 is arranged, the lower end of leading screw 4 is contained in the bearing 10 of bearing block 11.There is slide cartridge end cap 12 upper end of leading screw 4, and there is locking nut 13 slide cartridge end cap 12 tops, and locking nut 13 is meshed with leading screw 4, tightens locking nut 13 during work, and leading screw 4 just can not rotate again, makes jig arm 5 fixed-site.For the ease of rotating threaded shaft 4, the head of leading screw 4 is processed as four directions or hexagon shape, can use spanner to rotate.

Jig arm 5 is divided into two, respectively in the corresponding both sides of slide cartridge 2, jig arm 5 upper ends are connected with the lower end of connecting rod 15 by bearing pin 17 respectively, the upper end of connecting rod 15 is connected with slide block 3 by bearing pin 16, jig arm supporting base 6 is fixedly welded on the both sides of base 1, jig arm 5 tops are installed on the jig arm supporting base 6 by bearing pin 18, and slide block 3 can drivening rod 15 and jig arm 5 actions when moving up and down like this.

In the bottom of base 1 bearing (ball) cover 9 is arranged, bearing (ball) cover 9 usefulness screws and base 1 bottom are fixed, and when needs are changed or keep in repair bearing 10 and leading screw 4, open the bearing (ball) cover 9 of bottom and can operate.

Contact head 8 is connected on the base 1, and secondary line set bolt 7 is fixed on the contact head 8.

Using method of the present utility model:

1. on the ground locking nut 13 is unclamped, with spanner the head of leading screw 4 is changeed counterclockwise again, two jig arm 5 of overlapper are launched.

2. the 8 pairs of good suitable positions of weld bond that will weld of overlapper contact head, with spanner leading screw 4 heads are being changeed clockwise, till two jig arm 5 can be clamped pipeline.

3. with spanner locking nut 13 is tightened, jig arm 5 is loosening in case leading screw 4 rotates.

4. fixing on the secondary line set bolt 7 of overlapper secondary line at last.

The utility model has following advantage in construction:

Volume is less in work progress, and is easy to carry back and forth, can be on ground, and wait environment all can use in the ditch, thereby can increase work efficiency.

A kind of overlapper can be used on the pipeline of different tube diameters, and the quantity that reduces overlapper is saved the quantity of material and facility.

Secondary line rationally overlaps and improves welding quality and pipeline presentation quality, reduces pipe surface work of treatment amount in a large number.

Claims

1. pipeline welding secondary line overlapper, it is characterized in that: it is by base [1], slide cartridge [2], slide block [3], leading screw [4], jig arm [5], jig arm supporting base [6], secondary line set bolt [7], contact head [8] is formed, slide cartridge [2] vertically is connected with base [1], leading screw [4] is installed in the slide cartridge [2], chute [14], slide block [3], leading screw [4], the axially parallel of chute [14] and slide cartridge [2], slide block [3] is sleeved on the leading screw [4], slide block [3] center is a screw, screw thread is meshed with leading screw [4], the slide body of slide block [3] both sides is embedded in the chute [14], jig arm [5] is respectively in the corresponding both sides of slide cartridge [2], the upper end is connected with the two sides of slide block [3] by connecting rod [15] respectively, jig arm supporting base [6] is fixedly welded on the both sides of base [1], jig arm [5] top is installed on the jig arm supporting base [6] by bearing pin [18], contact head [8] is connected on the base [1], and secondary line set bolt [7] is fixed on the contact head [8].

2. pipeline welding secondary line overlapper according to claim 1, it is characterized in that: bearing block [11] is arranged in the bottom of slide cartridge [2], leading screw [4] lower end is contained in the bearing [10] of bearing block [11], slide cartridge end cap [12] is enclosed within the upper end of leading screw [4], there is locking nut [13] slide cartridge end cap [12] top, and locking nut [13] is meshed with leading screw [4].

3. pipeline welding secondary line overlapper according to claim 2 is characterized in that: an end of described connecting rod [15] is connected for bearing pin [16] with slide block [3], and the other end of connecting rod [15] is connected for bearing pin [17] with jig arm [5] upper end.