JPH01258868A - Welding equipment for shape steel - Google Patents

Abstract

PURPOSE:To rapidly and easily carry out straightening work of the title shape steels by supporting shape steels by a shape steel holding body via plural arresting tools and welding these and subsequently, straightening thermal deformation generated at the time of welding by the plural straightening tools. CONSTITUTION:The shape steel holding body 1 consisting of circular connecting plates 5A and 5B to connect ends of a couple of upper and lower beams 4A and 4B to each other is supported freely rotatably round the horizontal axial center by a couple of supporting rollers 6 on right and left. The plural arresting tools 13 to arrest the shape steels are then provided to the one beam 4A and the plural straightening tools 14 to straight the shape steels are provided to the other beam 4B. Moving bodies to approach and separate from the shape steel holding body 1 are then arranged respectively to the right and left of the shape steel holding body 1 and traveling bodies to travel along the beams 4A and 4B of the shape steel holding body 1 are provided respectively to the respective moving bodies and welding tools to weld shape steels in a tack-welded state are set respectively to said traveling bodies. Accordingly, the straightening work can be rapidly carried out as compared with the case where straightening is carried out by using a press machine separately.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a section steel welding device.

BACKGROUND ART In conventional technology-a, shaped steel made of a special material such as stainless steel shaped steel is manufactured by welding plate materials. By the way, in conventional welding, the temporarily welded flange and web were placed on a predetermined surface plate and positioned using a fixing jig, and then the final welding was performed.

Problems to be Solved by the Invention According to the above-mentioned conventional manufacturing method, large thermal deformation occurs during welding due to the poor thermal conductivity and high coefficient of linear expansion of stainless steel, so a press machine or the like is used after welding. There was a problem in that it required a lot of time and effort to correct the problem.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a section steel welding apparatus that can solve the above-mentioned problems.

Means for Solving the Problems In order to solve the above problems, the section steel welding apparatus of the present invention includes:
An M-shaped holder consisting of a pair of upper and lower beams and a connecting plate that connects the ends of the pair of beams is supported rotatably around a horizontal axis, and a shape steel is restrained to one of the beams. In addition to providing a plurality of tools, the other beam is provided with a plurality of correction tools for straightening the shaped steel, and movable bodies that can move toward and away from the shape meA holder are provided at the left and right positions of the shape steel holder, respectively. Each of these movable bodies is provided with a running body that can freely run along the beam of the shaped steel holder, and each of these moving bodies is provided with a book of shaped steel in a temporarily attached state held by the shaped steel holder. Each is equipped with a welding tool for welding.

Function In the above configuration, for example, 1 (when performing main welding of a section steel, the temporarily attached section steel is first fixed to the section steel holder using a restraint device. 8) Next, the movable body is approached to the section steel holder. After letting
Main welding is performed on one flange side using a welding tool while the traveling body is traveling.Next, after the moving body is separated, the shaped steel holder is reversed by 180°. After this, the main welding on the other flange side can be performed in the same manner as above. Also, after welding is completed, the deformation of the section steel due to welding heat is corrected by using a restraint device and a correction device together. Ru.

EXAMPLE Hereinafter, an example of the present invention will be explained based on FIGS. 1 to 3.

Reference numeral 1 denotes a shaped steel holder that holds the shaped steel 2 in a temporarily attached state, and is configured to be rotatable around a horizontal axis by a rotation drive device 3. This shaped steel holder 1 consists of a pair of upper and lower beams 4A, 4B.
and these pair of beams 4A.

A pair of front and rear circular connecting plates 5A that connect the ends of 4B.
, 5B, and a pair of left and right support rollers 6 that rotatably support each of the circular connecting plates 5A, 5B around a horizontal axis. Further, the rotational drive device 3 is interlocked with a driven sprocket 8 attached to a horizontal shaft body 7 protruding from the center of the front circular connecting plate 5A, and the driven sprocket 8 via a chain 9. It is composed of a driving sprocket 10 and an electric tR11 that rotates the driving sprocket 10. Therefore, by operating the electric WA11, the entire section steel holder 1 can be rotated around the horizontal axis. A hole 12 of shape g2 for carrying in and out is formed in the center of the rear circular connecting plate 5B. Further, the lower beam 4A is provided with a plurality of (for example, 17) restraints 13 at predetermined intervals, and the upper beam 4A corresponds to the predetermined restraints 13.
B is provided with a plurality of (for example, five) correction tools 14, and a receiving plate 15 is provided at a position corresponding to the remaining restraint tools 13. The restraint tool 13 and correction tool 14 include hydraulic cylinder devices 16A and 18B and their rods 17A.

Contact members 18A and 18B attached to the tip of 17B
It is composed of. Therefore, the restraint tool 13 can restrain the section steel 2 between the beams 4A and 4B, and the correction tool 14 can correct the deformation of the section steel. Further, on the lower beam 4A, a plurality of carrying-in rollers 19 for guiding and carrying in the section steel 2 are arranged, and each carrying-in roller 19 is connected via a sprocket 20.21 and a chain 22.23. It is rotationally driven by an electric motor 24. At the left and right positions of the shaped steel holder 1, movable bodies 26 are provided, respectively, which are driven by a moving drive device 25 and can move toward and away from the beams 4A and 4B. That is, this moving body 26 includes a moving body 27 having a length substantially equal to the entire length of the beams 4A and 4B, and a moving body 27 having a length substantially equal to the entire length of the beams 4A and 4B.
A plurality of beams are attached to the bottom surface of the beam 4A.

4B and moving wheels 29 guided by a plurality of rails 28 arranged perpendicularly to the moving wheels 29.

Further, the moving drive device 25 is arranged perpendicularly to the beams 4A and 4B, and has a female thread #Ik on the moving body 27 side.
30 and a rotating screw shaft 31 screwed into the rotating screw shaft 3.
1 and an electric motor 32 that rotates the motor. Further, on the upper surface of the moving body 27, a beam 4A,
A traveling body 33 that can run freely along the line 4B is arranged, and each of these traveling bodies 33 is equipped with a welding tool (welding torch).
34 are provided. Of course, the traveling body 33 is provided with traveling wheels 36 that can freely run on rails 35 arranged on the upper surface of the moving body 27.

Next, welding work for H-section steel will be explained.

``First, as shown by arrow A in FIG.
is carried onto the lower beam 4B through the hole 12.

Next, the restraint 13 is activated to move the section steel 2 to the abutting member 18.
A and the receiver are fixed between them and the plate 15, and are deformed in the direction opposite to the deformation due to heat input during welding. In this state, the movable body 26 is brought close to the beams 4A and 4B and the welding tool 34 is aligned with the bath welding point, and then welding is started and the movable body 33 is run to connect the web of the section steel 2 to one side. After this welding is completed, the movable body 26 is attached to the beam 4A.
, after separating from 4B, drive the electric motor 1111 to move the shape g
451. Holder 1 is turned over 180°. Then, after the moving body 26 is brought close to the beams 4A and 4B again, the main welding between the other flange and the web is performed in the same manner as above.

When welding is completed, the center restraint 13 is released leaving the restraints 13 at both ends, and the straightening tool 14 is activated to straighten the section steel. The size number of the steel is predetermined according to the size number of the steel, and the amount of protrusion of the rod 17B of the hydraulic cylinder device 16B is detected and automatically controlled via a rack and pinion mechanism and an encoder.

Effects of the Invention According to the configuration of the present invention described above, after main welding is performed by supporting the section steel on the section steel holder via the restraint device, the thermal deformation that occurs during welding can be immediately corrected by the correction tool, which makes it possible to correct the thermal deformation that occurs during welding. Compared to the case where a separate press machine or the like is used for straightening, the straightening work can be performed quickly and easily.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a side view of a section steel holder, Fig. 2 is a plan view of the same, and Fig. 3 is a view of I of Fig. 1.
It is an overall sectional view at a position corresponding to arrow -I. DESCRIPTION OF SYMBOLS 1... Shaped steel holder, 2... Shaped steel, 3... Rotation drive device, 4A, 4B... Beam, 5A, 5B... Circular connection plate, 6... Support roller, 13 ...Restraints, 14
...Orthodontic tool, 15...The receiver is a plate, 16A, 16B.
...Hydraulic cylinder device, 18A. 18B... Contact member, 25... Movement drive device, 2
6... Moving body, 33... Traveling body, 34... Welding tool. Agent Yoshihiro Morimoto

Claims (1)

[Claims] 1. A shaped steel holder consisting of a pair of upper and lower beams and a connecting plate that connects the ends of these pair of beams is supported rotatably around a horizontal axis, and the shaped steel is restrained to one of the beams. A plurality of restraints are provided to straighten the shaped steel, and a plurality of straightening tools are provided on the other beam to straighten the shaped steel, and movable bodies that can move toward and away from the shaped steel holder are provided at left and right positions of the shaped steel holder, respectively. Each of these movable bodies is provided with a running body that can freely run along the beam of the shaped steel holder, and each of these moving bodies is provided with a book of shaped steel in a temporarily attached state held by the shaped steel holder. A shaped steel welding device characterized in that each welding tool for welding is provided.