JPS607916Y2 - Pipe and flange welding equipment - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a pipe and flange welding device that can position and hold the straight pipe and the rungs at right angles when welding the straight pipe and the flange.

Conventionally, when welding a straight pipe and a flange, the straight pipe and flange were first manually fitted, and the perpendicularity of the straight pipe to the flange was visually confirmed, and then temporary welding was performed. Since the straight pipe and the flange are not fixed, the perpendicularity between the straight pipe and the flange cannot be maintained against the tension caused by the heat effects of welding.

Therefore, after first welding one point, we visually check the perpendicularity again, make corrections if it is not perpendicular, and then weld one point on the opposite side of the one-point weld, which is equivalent to temporary welding. It takes a lot of time.

This idea takes into account the above-mentioned conventional problems, and by fixing the flange using the magnetic force of a magnet and placing the pipe against the pipe holder, the pipe is positioned at right angles to the flange, and all metal fittings are press-fitted to the pipe. This device fixes the tube, maintains the perpendicularity between the tube and the flange, and facilitates welding work.Next, this invention will be explained in detail along with a drawing showing one embodiment. do.

In the figure, 1 is a fixed base, 2 is a cylindrical magnet base placed on the fixed base 1, and has a plurality of fixing grooves 2' formed on the side surface, has a magnetic force on the upper surface, and has a magnetic force on the lower surface. has no magnetic force.

Numeral 3 is a plurality of support punches fixed to the end of the fixed base 1 in an inclined manner facing each groove 2', numeral 4 is a nut fixed to the upper end of each support punch 3, and numeral 5 is a screw screwed into the nut 4. inserted and the bottom end is groove 2
The magnet base 2 is fixed onto the fixing base 1 by the fixing bolt 5, which is a fixing bolt inserted into the fixing bolt 5' and has a tightening heir 5' at the upper end.

6 is a disk-shaped flange for the workpiece placed on the upper surface of the magnet base 2 and fixed by magnetic force; 7 is an inverted-shaped support set upright on the fixed base 1; the upper end is attached to the magnet; It is located above the flange 2.

Reference numeral 8 denotes a tube support member made of a chevron-shaped member having a cross-sectional shape, and is positioned perpendicularly to the upper surface of the magnet base 2, that is, in the vertical direction, and is fixed to the upper end of the support body 7.

Reference numeral 9 denotes a straight pipe to be processed, the lower end of which is fitted into the flange 2 and applied to the pipe receiving member 8.

Reference numeral 10 indicates a support base fixed on the fixed base 1, and reference numeral 11 indicates a round bar-shaped guide rail located horizontally and fixed on the support base 10 in the horizontal direction, and a part thereof is supported facing the magnet base 2. It is attached so as to protrude from the stand 10.

12 is a cylindrical slide body that is slidably inserted into the guide rail 11, 13 is an angle member with a U-shaped cross section fixed to the upper part of the slide member 12, and 14 is an angle member that is attached to the guide rail 11 from the angle member 13. 2 extended to be almost parallel
15 is a female screw fixed to the opposite end of the guide rail 11 to the magnet base 2;
It is a male screw that is screwed into the female screw 15 and positioned parallel to the guide rail 11. An angle member 13 is attached to one end, and a handle 17 for rotational operation is provided at the other end.

Reference numeral 18 denotes an operating shaft that is slidably inserted through the angle member 13, and is provided so as to be movable in a direction perpendicular to the axis of the straight pipe 9 applied to the pipe receiving member 8, that is, in a horizontal direction. There is.

Reference numeral 19 denotes a fitting that is fixed to one end of the operating shaft 18 and is provided so as to come into contact with the straight pipe 9 as the operating shaft 18 moves; 20 is a fitting that is wound around the operating shaft 18 and fixed to the other end of the operating shaft 18; A spring is interposed between the stopper piece 21 and the angle member 13, and 22 is a rotating member 24 whose one end is rotatably attached to the ends of both singing members 14 by a pivot 23. The handle 25 is two expansion-type flexible arms whose both ends are pivotally connected to the other end of the rotating member 22 and the stopper 19 by pivots 26 and 27, respectively.

Next, the operation of the embodiment will be explained.

The magnet base 2 is tightened with the bolt 5.
It is fixed at a predetermined position on a fixed base 1, and when the flange 6 is placed on the upper surface of this magnet base 2, the flange 6 is fixed at a predetermined position by magnetic force.

Next, the straight pipe 9 is placed against the pipe receiving member 8 and fitted into the flange 6 from above.

When the handle 24, which is in a state of falling to the right, is turned to the left, the rotating member 22 rotates to the left and comes into contact with both of the singing pieces 14 and comes to rest, so that the handle 24 is erected.

At this time, both the flexible arms 25 are moved to the right using the stopper fitting 19 as a fulcrum and are positioned horizontally, and furthermore, the flexible arms 25
The abutment fitting 19 is pressed leftward, and the operating shaft 18 is slid leftward while compressing the spring 20.

Therefore, the stopper fitting 19 is moved to the left.

Next, when the handle 17 is turned, the male screw 16 is rotated and moved, and the slide body 12 is moved while sliding on the guide rail 11 due to the male screw 16.
2, the angle member 13, the stopper fitting 19, the flexible arm 25, etc. are moved, and eventually the stopper fitting 19 comes into contact with the straight pipe 9 and presses the straight pipe 9, and the straight pipe 9 presses against the pipe support member 8. and fixed in a vertical position.

That is, the straight pipe 9 is positioned and fixed at right angles to the flange 6, while the flange 6 is fixed to the magnet base 2 as described above.

Therefore, if welding is performed in this state, the right angle between the straight pipe 9 and the flange 2 will be reliably maintained even against tension due to heat, etc., and welding can be performed easily.

In addition, in the above-mentioned operation, since the flexible arm 25 is of an expansion type, the stopper fitting 19 is accurately pressed against the straight pipe 9 without making uneven contact.

Further, the position of the stopper fitting 19 may be adjusted by operating the nodule 17 according to the diameter of the straight pipe 9 to be welded.

When welding is completed, the handle 24 is slightly pressed to the right.

As a result, when the rotating member 22 is slightly rotated to the right, the operating shaft 18 is caused by the restoring force of the compressed spring 20.
is biased to the right, and the flexible arm 25 and the rotating member 22
is rotated, the stopper fitting 19 is separated from the straight pipe 9, and the straight pipe 9 to which the flange 6 is attached is taken out from the pipe support member 8.

As described above, according to the pipe and flange welding device of this invention, there is a magnetic base that magnetically fixes the flange that is fixed to a fixed base and placed on the upper surface, and a vertical support that is placed on the fixed base. A pipe support member made of an angle-shaped member fixed in the direction, a straight pipe fitted at the lower end of the flange and applied to the pipe support member, and a horizontal direction fixed to a support base fixed to the fixed base. a guide rail, a slide body slidably inserted into the guide rail, a holding member erected on the slide body, a moving means for moving the holding member in the left-right direction, and a moving means for moving the holding member in the left-right direction; By having a left-right operating shaft provided and a stopper that is fixed to the tip of the operating shaft and can freely come into contact with the straight pipe, the simple structure prevents the tensile effects of heat etc. The perpendicularity between the flange and the flange can be maintained reliably, making it possible to perform welding work easily and in a short time.

[Brief Description of the Drawings] The drawings show one embodiment of the pipe and flange welding device of this invention, with Fig. 1 being a front view, Fig. 2 being a partial plan view, and Fig. 3 showing fixing of the magnet base. 4 is a side view showing the 3rd
It is an enlarged view of a part of the figure. 2... Magnet base, 6... Flange, 8... Tube holder member, 9... Tube, 1
9...Battery fitting, 24...Handle.

Claims (1)

[Scope of utility model registration request] A magnet base that magnetically fixes a flange fixed to a fixed base and placed on the upper surface; a pipe support member made of a chevron member fixed vertically to a support erected on the fixed base; A straight pipe whose lower end is fitted and applied to the pipe receiving member, a horizontal guide rail fixed to a support stand fixed to the fixed stand, and a straight pipe fitted into the guide rail in a slidable manner. a slide body, a holding member erected on the slide body, a moving means for moving the holding member in the left-right direction, a left-right operating shaft provided on the holding member, and fixed to the tip of the operating shaft. A welding device for welding a pipe and a flange, comprising a metal fitting that can freely come into contact with the straight pipe.