JPH0547311B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a temporary welding device for section steel.

BACKGROUND TECHNOLOGY Shaped steel made of special materials such as stainless steel shaped steel are generally manufactured by welding plates together, and temporary welding is usually performed before main welding. By the way, temporary welding when manufacturing H-section steel involves first placing the web material on one flange material and positioning it, then performing temporary welding, and then placing the other flange material on the web material. After installing and positioning, temporary welding was performed. Furthermore, the positioning of the flange material and web material has been performed manually using a jig or the like.

Problems to be Solved by the Invention According to the above-mentioned conventional temporary welding, two steps are required for positioning and welding the flange material and web material, and since the material is long and thin, deformation is large and temporary welding is difficult. It was hot.

Therefore, an object of the present invention is to provide a temporary welding device that can solve the above problems.

Means for Solving the Problems In order to solve the above problems, the temporary welding device of the present invention temporarily welds the flange material and the web material while moving the section steel made of the flange material and the web material along a predetermined path. A temporary welding device for welding, in which conveyance rollers capable of conveying steel materials are arranged along a predetermined path, and guide rollers are provided on both sides of the predetermined path to abut against the end surface of the flange material and the side surface of the web material. A flange centering device and a web centering device for centering these steel materials are arranged, and a plurality of rolling devices each having a rolling roller for pressing the upper surface of the steel material downward are arranged along a predetermined route, and a plurality of rolling down devices are arranged along a predetermined route, and a plurality of rolling down devices are arranged along a predetermined route. A head aligning device for aligning the tips of each steel material is provided so as to be movable between a predetermined path center position and a position outside the predetermined path, and simultaneously pushes each steel material onto a conveying roller at the other end of the predetermined path. A pusher device is provided, and a protrusion that contacts the web material is provided at the tip of the pusher body of the pusher device so as to be able to move in and out from the pusher body via a spring body, and temporary welding of each steel material is performed in the middle of a predetermined path. This is an arrangement of the welding tools used for welding.

Function In the above configuration, for example, when performing temporary welding of H-section steel, the flange material and the web material are carried in assembled state on the conveyor roller and are pushed out by the pusher device to the head alignment device disposed in front. During this process, each centering device
The flange material and the web material are centered, and the flange material is brought into firm contact with the web material by the rolling down device. Once the head is aligned,
After the head alignment device is moved outward along a predetermined path, temporary welding is performed using a welding tool while the section steel is transported by transport rollers.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 5. In addition, in this embodiment, an H-shaped steel 3 consisting of upper and lower flange members 1 and web members 2 is used.
The case where temporary welding is performed will be explained. Reference numeral 4 denotes a lower frame, on the upper surface of which two conveyance rollers 5 for conveying steel materials are arranged along a predetermined path, and between these conveyance rollers 5 a plurality of guide rollers 6 for guiding steel materials are arranged. has been done. The conveyance roller 5 is interlocked with an electric motor 10 via sprockets 7 and 8 and a chain 9. At a proper place on the predetermined path of the lower frame 4,
A flange centering device 11 that performs centering (positioning) of the flange material 1 and a web material 2
A web centering device 12 is arranged to perform centering (positioning) of the web. The flange centering device 11 includes a pair of left and right slide bases 14 that are slidably guided by slide rails 13 provided at both sides of a predetermined route and in a direction perpendicular to the predetermined route (hereinafter referred to as the width direction), and a pair of left and right slide bases 14 that are slidably guided by slide rails 13 provided on both sides of a predetermined route and in a direction perpendicular to the predetermined route (hereinafter referred to as the width direction). A pinion 16 engages racks 15 formed on mutually opposing surfaces of the stands 14 to move the slide stands 14 in opposite directions, and a moving cylinder device 17 moves one of the slide stands 14 in the width direction. and flange guide rollers 18 provided vertically at the front and rear of the top surface of each slide table 14.
It is composed of. Therefore, by moving one of the slide tables 14 using the moving cylinder device 17, the flange guide rollers 18 of both slide tables 14 are adjusted to the width of the flange material 1.
The distance between them can be adjusted. Further, two types of web centering devices 12 are provided, upper and lower, with the lower web centering device 12A being used for the smaller shaped steel 3A, and the upper web centering device 12B being used for the larger shaped steel 3B. . This lower web centering device 12
A has the same structure as the flange centering device 11, and a lower web guide roller 19 is provided on the slide table 13. On the other hand, the upper web centering device 12B includes an elevating cylinder device 21 vertically provided at a proper position on the upper frame 20 above a predetermined path, and an elevating body 22 attached to the tip of a rod 21a of the elevating cylinder device 21. , a rotary shaft 23 hanging at the left and right positions of this elevating body 22 (positions on both sides of a predetermined path) and rotatable around a vertical axis, and each of these rotary shafts 23
an upper web guide roller 25 for guiding the web material attached to the lower end of the unit via an arm member 24;
The rotating cylinder device 26 is connected to the upper end of the rotating cylinder device 26 and rotates each rotating shaft 23 at a predetermined angle. Therefore, by rotating each rotating shaft 23 using this rotating cylinder device 26, the distance between both upper web guide rollers 25 can be adjusted according to the thickness of the web material 2. Further, at a position corresponding to above the conveyance roller 5 and the predetermined guide roller 6, a rolling down device 27 for pressing the upper flange material 1 downward is arranged. This lowering device 27 includes an elevating cylinder device 28 vertically attached to the upper frame 20, an elevating body 29 attached to a rod 28a of this elevating cylinder device 28, and a lowering device attached to this elevating body 29. It is composed of a roll 30. Therefore, by operating the lifting cylinder device 28, the position of the rolling roll 30 can be adjusted according to the height of the section steel 3. In addition, each of the above-mentioned centering devices 11, 12
The rolling down devices 27 are arranged in appropriate numbers and at appropriate positions depending on the shape of the section steel. A head alignment device 31 for aligning the tips of the flange material 1 and the web material 2 is provided on one end side of the lower frame 4 so as to be movable in the width direction. That is, this head alignment device 31 includes a guide rod 32 arranged horizontally and in the width direction within the lower frame 4, a lower end portion of which is movably guided by this guide rod 32, and an upper end portion of which is movably guided by a guide member 33. A guided moving support 34, a web positioning member 35 attached to the upper side surface of the moving support 34 in the transport direction and having a recess 35a for positioning the end face of the web material 2, and a web positioning member 35 attached to the lower frame 4. It is comprised of a moving cylinder device 36 that moves this moving support column 34 in the width direction. Therefore, the web positioning member 35 positions the tip of the shaped steel web material 2 that has been conveyed on a predetermined route, and the upper and lower flange members 1 are brought into contact with the surface of the movable support column 34 to The tip is positioned. Of course, the tips of the upper and lower flange members 1 and the web members 2 are aligned at the same position. In addition, the moving cylinder device 36 moves the moving support body 34 to a predetermined path center position where the heads of the flange material 1 and the web material 2 can be aligned;
It is moved between a predetermined path and a position outside where it does not get in the way during temporary welding. Further, as shown in FIG. 4, a pusher device 37 for pushing out the flange material 1 and the web material 2 together is provided at the other end of the predetermined path. That is, this pusher device 37
A pusher main body 38 has a contact surface 38a that can come into contact with the entire end face of a section steel assembled into a section steel shape, and a moving device (not shown, for example, a cylinder) for moving the pusher main body 38 along a predetermined path. a compression spring (spring body) 39 on the contact surface 38a of the pusher body 38
The projection 40 for extruding the web material is attached to the projection 40 so as to be freely removable through the projection 40. Therefore, when extruding a section steel through the pusher body 38, the web material 2 is always extruded to the tip of the flange material 1, the web material 2 contacts the web positioning member 35 first, and then the flange material 1 comes into contact with the movable support column 34 and the heads are aligned. Furthermore, welding tools (welding torches) 41 for temporarily welding the flange material 1 and the web material 2 are arranged at predetermined positions on the lower frame 4 at the front, rear, left and right positions via a tracing device 42. This profiling device 42 is
As shown in FIG. 5, a slide rail 43 disposed on the lower frame 4, a horizontal movable body 45 that is slidably guided in the horizontal direction by the slide rail 43 via a slide member 44, and A slide rail 46 arranged vertically on the body 45, a vertically movable body 48 slidably guided by the slide rail 46 in the vertical direction via a slide member 47, and a flange attached to the vertically movable body 48. A contact roller 49 that can come into contact with the material 1 and the web material 2, and the horizontal movable body 45
The welding tool 41 is composed of a horizontal biasing cylinder device 50 that presses the vertical movable body 48 against the web material 2 side and a vertical biasing cylinder device 51 that presses the vertically movable body 48 against the lower flange material 1. It is attached to the body 48. Therefore, each welding tool 41 is always maintained at a constant distance from the object to be welded by each urging cylinder device 50, 51. In addition, so that the welding points of the respective welding tools 41 do not touch each other, welding at the portions ○A and ○C in FIG. 5 is performed by the front left and right welding tools 41,
In addition, welding of the ◯◯ and ◯◯ portions is performed using rear left and right welding tools 41.

Next, the temporary welding work will be explained.

First, the web material 2 is inserted between the upper and lower flange members 1 and is pushed onto the lower frame 4 by the pusher device 37. At this time, the web material 2 is moved to the flange material 1 by the projection 40 of the pusher device 37.
It is extruded with a predetermined amount (for example, about 20 mm) in advance. The upper and lower flange materials 1 are positioned by the flange guide rollers 18 of the flange centering device 11, the web material 2 is positioned by the lower web guide rollers 19 of the web centering device 12, and the upper flange material 1 is positioned by the rolling down rollers 30. It is pressed against the web material 2 side. In addition, when the dimension of the section steel 3B is large, the upper web guide roller 25 is also used. Then, the web material 2 is placed first by the web positioning member 35.
After making contact with the upper and lower flange members 1, the upper and lower flange members 1 are further pushed out by the pusher body 38 (at this time, the compression spring 39 that urges the protrusion 40 is compressed), and come into contact with the movable support member 34, aligning the heads of each tip. will be held.
In this way, the flange material 1 was aligned.
Also, the web material 2 has dimensional errors, and the purpose is to make the cutting portions at the uneven end portions caused by these errors as short as possible to improve the yield of the product. When the heads are aligned, temporary welding is performed at only one location using the welding tool 41, and then the section steel 3 is moved backward a little and the web material 2 is pulled out from the recess 35a. Next, after moving the movable support column 34 outward by a predetermined path, the conveying roller 5 is driven to convey the H-shaped section steel in the direction of arrow A, and the web material 2 is connected to the web material 2 by the welding tool 41. Temporary welding with flange material 1 is performed. The pusher device 37 is stopped by a limit switch when the heads are aligned. Further, the centering of the rear end portion of the web material 2 after passing through the web centering device 11 is performed, for example, by adjusting the pressing force and pressing timing of the reduction roll.

Effects of the Invention According to the configuration of the present invention described above, the centering, that is, positioning of the flange material and the web material can be performed automatically, and the temporary welding can also be performed automatically and in a single process. Temporary welding can be performed extremely easily.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a partially cutaway side view, FIG. 2 is a partially cutaway plan view, and FIG.
FIG. 3 is a cross-sectional view taken from FIG. 1, FIG. 4 is a side view of essential parts of the pusher device, and FIG. 5 is a side view of the tracing device. DESCRIPTION OF SYMBOLS 1... Flange material, 2... Web material, 3... Shaped steel, 5... Conveyance roller, 11... Flange centering device, 12... Web centering device,
17...Moving cylinder device, 18...Flange guide roller, 19...Lower web guide roller,
21... Lifting cylinder device, 25... Upper web guide roller, 26... Rotating cylinder device, 27... Rolling down device, 28... Lifting cylinder device, 30... Rolling down roll, 31... Head alignment device , 34... Moving support column, 35... Web positioning member, 36... Moving cylinder device, 37...
... Pusher device, 39 ... Compression spring, 40 ...
Projection, 41... Welding tool, 42... Tracing device.

Claims (1)

[Claims] 1 A temporary welding device that performs temporary welding between a flange material and a web material while moving a shaped steel section consisting of a flange material and a web material along a predetermined path, in which a conveyance roller capable of transporting the steel material is moved along a predetermined path. A flange centering device and a web centering device are arranged on both sides of this predetermined path to center these steel materials by having guide rollers that come into contact with the end face of the flange material and the side surface of the web material. A plurality of rolling down devices having rolling down rollers that press the upper surface downward are arranged along a predetermined route, and a head aligning device that is arranged at one end of the predetermined route and aligns the tips of each steel material is placed between the center position of the predetermined route and the predetermined route. A pusher device is provided at the other end of a predetermined path to simultaneously push out each steel material onto a conveying roller, and a pusher device is provided at the other end of a predetermined path so as to be movable between the outside position and the pusher device. What is claimed is: 1. A temporary welding device characterized in that a welding tool for temporarily welding steel materials is disposed in the middle of a predetermined path in a predetermined path.