JPH11114696A - Reversion type welding auxiliary device for frame of building unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reversion type welding auxiliary device for a frame of a building unit capable of being used to easily weld/fix a plurality of frame members of a roughly planar building unit from both sides. SOLUTION: This welding auxiliary device is constructed so that a holding frame 18 formed from a plurality of frame members 21, 23, 26-29 joined each other in a roughly planar shape is arranged between a pair of support frames 16, 17 and is mounted to a pair of the support members 16, 17 rotatable through a horizontal rotation shaft 24, a drive motor 44 to drive the horizontal rotation shaft 24 is arranged and work holding means H1-H9 to hold plural places of the frame of the building unit of a roughly planar shape to plural places of the holding frame 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reversing type welding assist device for a frame of a building unit used for welding a plurality of frame members of a frame of a building unit temporarily assembled in a substantially planar shape.

[0002]

2. Description of the Related Art In a unit building, a building is constructed by assembling a plurality of housing units assembled in a factory or the like on site. As a residential unit,
Various other shapes such as a rectangular parallelepiped, an L-shape, a trapezoid, and the like have been considered. FIG. 17 shows an example of a trapezoidal unit (house unit) used on the upper floor. The trapezoidal unit includes a floor frame 1, a roof frame 2 disposed on the floor frame 1, and a trapezoidal planar wife frame 3 or 3 connecting the sides of the frames 1 and 2. With unit frame. As shown in FIG. 18, the wive frame 3 is provided between the floor frame member 4, the support frame members 5, 5 fixed to both ends of the floor frame member 4, and the support frame members 5, 5. It has roof frame members 6 and 7 that are bridged.

When assembling such a wife frame 3 from a plurality of frame members 4, 5, 6, 7 in a factory or the like, the frame members 4, 5, 6, 7 are placed on a jig platen in the factory. Place it horizontally and joint pieces 8,
At 9 and 10, the shape is temporarily fixed to the shape of the wife frame 3, and each frame member 4, 5, 6, 7 and each joint piece 8, 9, 1
No. 0 is fixed by welding.

[0004]

The frame members 4 to
Since the welding fixation between the joint member 7 and the joint members 8 to 10 is performed in substantially the entire circumferential direction of each of the joint members 8 to 10, it is necessary to perform the welding from the upper surface side and the lower surface side of the horizontally mounted end frame 3. Was.

However, a conventional jig surface plate (welding auxiliary device)
Is not a structure suitable for welding the wife frame 3 from both sides. Conventionally, after welding from the upper surface side of the wife frame 3, one side of the wife frame 3 is lifted with a hoist or the like. In the holding state, the lower portion of the wife frame 3 is welded. For this reason, it was not easy to perform the welding operation with the wife frame 3 in a cantilever state.

Accordingly, the present invention provides an inversion type welding assist device for a building unit frame which can be used for easily fixing a plurality of frame members of a substantially planar building unit frame to joint pieces or the like from both sides. It is intended to provide.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, a holding frame formed in a substantially planar shape from a plurality of frame members joined to each other is disposed between a pair of supporting members. The holding frame is rotatably attached to the pair of support members via a horizontal rotating shaft, and a driving unit for driving the horizontal rotating shaft is provided. The frame is a reversing type welding assist device for a frame of a building unit provided with a work holding means for holding a plurality of portions of the frame of the building unit.

According to a second aspect of the present invention, a plurality of work support rollers arranged in a direction parallel to a direction in which the horizontal rotation axis extends are rotatably attached to left and right portions of one surface of the holding frame. It is characterized by being.

Further, the invention according to claim 3 is characterized in that a space is formed in the center of the holding frame in the left-right direction to extend to the end in the direction in which the horizontal rotation axis extends and to be released on both sides.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS.

In FIG. 1 to FIG. 3, reference numeral 11 denotes a floor surface of a housing unit assembling factory, and reference numeral 12 denotes a concave portion opened on the floor surface 11. This recess 12 is provided with a recess 13 for wide holding frame arrangement.
And a small-width motor-arranged concave portion 14 connected to one longitudinal end of the concave portion 13.

A base member 15 is provided on the bottom of the recess 13.
Are fixed, and support frames (support members) 16, 17 located on both ends in the longitudinal direction of the concave portion 13 on the base member 15.
The planting has been fixed. The supporting frames 16 and 17 are
3 in the width direction. A holding frame 18 is provided between the support frames 16 and 17. The holding frame 18 has a central frame 19 and left and right side frames 20,20.

The central frame 19 is a pair of vertical frame members 2 extending in parallel with each other and both ends extending to the vicinity of the support frames 16 and 17.
1 and 21, end plates 22, 22 connecting both ends of the vertical frame members 21, 21, and a reinforcing frame member 23 connecting the intermediate portions of the vertical frame members 21, 21. In the center of the end plates 22, 22, horizontal rotation shafts 24, 24 are provided coaxially and integrally toward the support frames 16, 17 side. The horizontal rotation shafts 24, 24 are rotatably held by bearings 25, 25 attached to the centers of the upper surfaces of the support frames 16, 17, respectively. Therefore, between the vertical frame members 21 and 21,
A space SP opening before and after the holding frame 18 (a space penetrating in a direction perpendicular to the paper surface in FIG. 1) is formed for use during welding.

The side frame portion 20 is provided with a horizontal frame member 26, which protrudes laterally from portions near both ends of the vertical frame member 21,
26 ', a vertical frame member 27 which is disposed parallel to the side of the vertical frame member 21 with a space therebetween and both ends of which are welded and fixed to an intermediate portion between the horizontal frame members 26 and 26'; Between a vertical frame member 28, which is disposed in parallel at a lateral distance from each other and has both ends welded to the ends of the horizontal frame members 26, 26 ', and an intermediate portion between the vertical frame members 21, 27. Reinforced frame member 2 connected
9 A space SP used at the time of welding is also formed between such frame members 21, 23, 26 to 29.

On the vertical frame members 27, 28, a plurality of brackets 30, 31, which correspond to each other and are arranged at intervals in the longitudinal direction, are attached.
Work support rollers 32 are rotatably held at 0 and 31 (see FIGS. 1, 2 and 6).

The side members 20 include vertical frame members 27 and 2
Mounting means M1 and M respectively positioned at one end of
2. Attachment means M3 and M4 located at the middle of the vertical frame members 27 and 28, and attachment means M5 and M6 located at the other end of the vertical frame members 27 and 28, respectively.

Although each of the mounting means M1 to M6 has a partly different position for mounting members, the basic structure is common as shown in FIGS. That is, each of the mounting means M1 to M6 is composed of a reinforcing plate 33 welded and fixed to the lower edge of the vertical frame member 27 or 28, and at least two reinforcing plates 33 welded and fixed on the reinforcing plate 33 and to the vertical frame member 27 or 28. It has one set of mounting plates 34,34. FIG.
In this state, the reinforcing plate 33 extends horizontally in the longitudinal direction of the vertical frame member 27 or 28, and the mounting plate 34 extends vertically. The mounting means M2 has two pairs of mounting plates 34, 34, and both ends of the pair of mounting plates 34, 34 on the side of the horizontal frame member 26 are fixed to the vertical frame members 27, 28 by welding. ing. Further, both ends of the mounting plates 34, 34 of the mounting means M6 are also fixed to the vertical frame members 27, 28 by welding.

Each of the mounting means M1 to M6 has a bracket 35 mounted on the lower surface of the reinforcing plate 34 with bolts and nuts (not shown), and a mounting plate 36 protruding from the bracket 35.

In FIG. 1, the work holding means H1 to H9 are omitted for convenience of illustration, but the work holding means H1 to H9 are attached at positions indicated by broken lines. That is, the work holding means H1 is mounted on the mounting means M1, and the work holding means H2, H are mounted on the mounting means M2.
3, H4 are attached, work holding means H5 and H6 are attached to the attachment means M3 and M4, respectively, and work holding means H7 and H are attached to the attachment means M5 and M6.
8, H9 are attached respectively.

Each of the holding means H1 to H9 has an L-shaped work holding member 37 and a hydraulic cylinder 38. The base end of the work holding member 37 is vertically rotatably mounted on the mounting plate 34 by a support shaft 39, and the cylinder body 38a of the hydraulic cylinder 38 is rotatably mounted on the mounting plate 36 by the support shaft 40, Cylinder 38
The outer end of the piston rod 38b is rotatably attached to an intermediate portion of the work holding member 37 by a support shaft 41.

Moreover, each of the work holding members 37 is vertically rotated by the expansion and contraction of the hydraulic cylinder 38, and the tip holding portion 37a is directed to the side (opposite to the center frame portion 19) in the state of standing up. It is set as follows. Further, a sensor mounting member 42 is bridged between the vertical frame members 27 and 28 in proximity to the work holding means H4, and the vertical frame member 27, the sensor mounting member 42 and the vertical frame member 28 serve as a work detecting means. Sensors S1, S2, and S3 are respectively attached.

The detection signals from the sensors S1 to S3 are input to a control circuit (not shown), and the work holding means H1
The operation of the hydraulic cylinders 38 to H9 is controlled by a control circuit (not shown) and a hydraulic control circuit controlled by the control circuit.

As shown in FIGS. 2 and 3, one end of a base member 15 is extended on the bottom of the concave portion 14, and a support 43 is fixed on the extended portion of the base member 15. A drive motor 44 as drive means and a speed reducer 45 for reducing the rotational output of the drive motor 44 are mounted on the support base 43. A sprocket 46 is fixed to an output shaft 45a of the speed reducer 45, and a sprocket 47 is attached to one of the horizontal rotary shafts 24.
A drive chain 48 as an interlocking means is bridged between 6, 47.

In FIG. 1, reference numeral 49 denotes a frame positioning stopper provided on the horizontal frame member 26. 2, the illustration of the stopper 49 is omitted for convenience of illustration. The stopper 49 is provided so as to be able to protrude and retract above the work support roller 32 as necessary.

Next, the operation of the reverse welding assist device for a frame of a building unit having such a configuration will be described.

(I). Example of frame of building unit As a frame of a building unit to be welded by this reversing type welding auxiliary device, for example, a trapezoidal wife frame 3 of a trapezoidal unit (housing unit) as shown in FIG. There is. The standard specification includes half, semi-half, standard, and a trapezoid type.

FIGS. 12 and 13 show a standard type wife frame 50. FIG. This wife frame 50
As shown in FIG. 18, the floor frame member 51, and the support frame members 5 fixedly mounted on both ends of the floor frame member 51.
2 and 52, and a roof frame member 53 spanned between the support frame members 52 and 52. Each of the frame members 51, 52 and 52, 53 is a joint piece 54,
55.

The frame 7 shown in FIGS.
0 is only lower in height than those shown in FIGS. 12 and 13 and has the same structure as those in FIGS. 12 and 13, so the same reference numerals as in FIGS. Omitted.

(Ii). FIG. 16 shows the arrangement of the work holding means H1 to H9 shown in FIG. 1, the arrangement positions F1, F2, F3 of the frame members held by the work holding means H1 to H9, and the table. It is a schematic diagram which shows the positional relationship of the position L1-L3 etc. of the frame member to which the inclination of the frame of the building unit of shape was given.

By the way, when a frame of a building unit such as a wife frame is manufactured from a plurality of frame members by welding using the above-described reversing type welding assist device, first,
A plurality of frame members are assembled with a joint piece into a frame shape as shown in FIGS. 12 to 15 on a work table of a temporary assembly process which is a pre-process and temporarily assembled, and the members are fixed with a jig or the like, The shape of the frame of the building unit as shown in FIGS.

On the other hand, the stopper 49 is
In a state in which the frame is projected upward from FIG. 2, the holding frame 18 shown in FIG. Is supplied horizontally from the direction of arrow 80 onto the work support roller 32. At the time of this supply, the floor frame member of the frame of the building unit such as the wife frame is connected to the stopper 49.
And the frame of the supplied building unit is stopped against the stopper 49.

Then, by this supply, the sensors S1,
One of S2 and S3 detects the support frame member of the building unit frame. These sensors S1, S2, S
3 is input to a control circuit (not shown), and the control circuit operates the work holding means H1 to H6 corresponding to the detection signals of the sensors S1, S2, and S3 via a hydraulic control circuit (not shown). The hydraulic cylinder 38 of the operated H1 to H6 is extended, the work holding member 37 is erected, and the frame members arranged at the arrangement positions F1 to F3 are held.

The work holding means H7 to H9 are provided on the upper side of the frame of the building unit supplied onto the holding frame 18, that is, the shape and shape of the roof frame members 6 and 7 in the above-mentioned wife frame 3. The operation is performed according to the shape and height of the roof frames 53 and 63 of the frames 50 and 60.

The frame of the building unit such as the wife frame supplied on the holding frame 18 is moved to the work holding means H1.
To H9, the joint between the frame member of the building unit frame and the joint piece is welded from the top and side surfaces, and then the drive motor 44 is operated to rotate the drive motor 44. The rotation is transmitted to the horizontal rotating shaft 24 via the speed reducer 45, the sprocket 46, the drive chain 48, and the sprocket 47, and the holding frame 18 is rotated by 180 ° about the horizontal rotating shaft 24 and stopped.

At this position, the frame of the building unit held by the holding frame 18 is located below the holding frame 18, but the holding frame 18 has a space SP formed therein. Then, the remaining portion of the welding between the frame member of the frame of the building unit and the joint piece is welded from the upper surface side of the holding frame 18.

After the welding operation is completed, the drive motor 44
, The holding frame 18 is turned 180 ° in reverse to the above, and the frame of the building unit is positioned above the holding frame 18 to stop the drive motor 44. After that, although the work holding means H1 to H9 are extended, the hydraulic cylinder 38 is reduced, and all the work holding members 37 of the work holding means H1 to H9 are tilted horizontally to support all the work holding members 37. It is positioned below the upper end of the roller 32. In this state, the frame of the welded building unit on the holding frame 18 is moved via the work support roller 32 in the direction in which the axis of the rotation support shaft 32 extends, and is carried out in the direction of arrow 81.

FIG. 11 shows a state in which the work holding members 37 of the work holding means H1 to H3 of the left and right side frame portions 20, 20 are erected for convenience of explanation. Actually, as shown in FIGS. 7 to 9, one of the work holding means H1 to H3 is erected to hold the support frame member of the frame of the building unit. In this case, FIG.
Work holding means H1 for left and right side holding parts 20, 20
H9 and H1 to H9 are, for example, as shown in FIG. 11, the left and right work holding members H1 to H3 and the work holding members 37 and 37 of H1 to H3 have the tip portions 37a and 37a facing opposite sides. Holding means H1 to H3, H1
The left and right support frame members of the frame of the building unit are securely held between the front end portions 37a, 37a of the H3 and the work supporting rollers 32, and the building held by the holding frame 18 even when the holding frame 18 is inverted by 180 °. The frame of the unit does not fall.

[0038]

As described above, according to the first aspect of the present invention, a holding frame formed in a substantially planar shape from a plurality of frame members joined to each other is disposed between a pair of supporting members, and A frame is rotatably attached to the pair of support members via a horizontal rotation shaft, and a driving unit for driving the horizontal rotation shaft is provided, and a substantially planar building unit is provided at a plurality of positions of the holding frame. Since the work holding means for holding a plurality of portions of the frame is provided, it can be used to easily weld and fix a plurality of frame members of a substantially planar building unit frame to a joint piece or the like from both sides. .

According to a second aspect of the present invention, a plurality of work support rollers arranged in a direction parallel to a direction in which the horizontal rotation axis extends are rotatably attached to left and right portions of one surface of the holding frame. With this configuration, the frame of the building unit can be easily carried in and out of the holding frame.

Furthermore, the invention according to claim 3 is configured such that a space is formed in the center of the holding frame in the left-right direction to the end in the direction in which the horizontal rotation axis extends, and is open on both sides, so that it is vertically long. The height when the back side of the building unit frame is inverted for welding is half the width of the building unit frame.

[Brief description of the drawings]

FIG. 1 is a plan view of a reversing type welding assist device for a frame of a building unit according to the present invention.

FIG. 2 is a schematic sectional explanatory view along AA in FIG. 1;

FIG. 3 is an explanatory schematic sectional view taken along line BB of FIG. 1;

FIG. 4 is an explanatory view showing a basic structure of the work holding means and a state where the work holding member is laid down in FIG. 1;

FIG. 5 is an explanatory view of a state where a work holding member of the work holding means shown in FIG. 4 is erected.

FIG. 6 is an explanatory view of the work supporting roller shown in FIG.

FIG. 7 is an operation explanatory view of a part of the work holding means shown in FIG. 1;

FIG. 8 is an operation explanatory view of a part of the work holding means shown in FIG. 1;

FIG. 9 is an operation explanatory view of a part of the work holding means shown in FIG. 1;

FIG. 10 is an operation explanatory view of a part of the work holding means shown in FIG. 1;

FIG. 11 is an explanatory diagram of an operation of a part of the work holding stage shown in FIG. 1;

FIG. 12 is a perspective view showing a specific example of a frame of a building unit.

FIG. 13 is a sectional view taken along the line CC of FIG. 12;

FIG. 14 is a perspective view showing still another shape of the frame of the building unit.

FIG. 15 is a sectional view taken along the line DD in FIG. 14;

FIG. 16 is an explanatory diagram showing a relationship between the position of the work holding means of the reversing type welding assist device shown in FIG. 1 and the shape of the frame of the building unit.

FIG. 17 is a perspective view showing an example of a housing unit.

18 is a perspective view of a wife frame of the housing unit shown in FIG.

[Explanation of symbols]

 16 ... support frame (support member) 17 ... support frame (support member) 18 ... holding frame 19 ... central frame portion 20 ... side frame portion 21 ... vertical frame member 22 ...・ End plate 23 ・ ・ ・ Reinforcement frame member 24 ・ ・ ・ Horizontal rotation shaft 25 ・ ・ ・ Bearing 26 ・ ・ ・ Horizontal frame member 26 '・ ・ ・ Horizontal frame member 27 ・ ・ ・ Vertical frame member 28 ・ ・ ・ Vertical frame Member 29: Reinforcement frame member 32: Work support roller 44: Drive motor (drive means) SP: Space

Claims (3)

[Claims] 1. A holding frame formed in a substantially planar shape from a plurality of frame members joined to each other is disposed between a pair of supporting members,
The holding frame is rotatably attached to the pair of support members via a horizontal rotation shaft, and a driving unit for driving the horizontal rotation shaft is provided. A reversing type welding assist device for a frame of a building unit, comprising a work holding means for holding a plurality of portions of the frame of the building unit. 2. A plurality of work supporting rollers arranged in a direction parallel to a direction in which the horizontal rotation axis extends are rotatably attached to left and right portions of one surface of the holding frame. Item 2. A reverse welding auxiliary device for a frame of a building unit according to Item 1. 3. The holding frame according to claim 1, wherein a space is formed at the center in the left-right direction of the holding frame so as to extend to an end in the direction in which the horizontal rotation axis extends and to be released on both sides. Reversal welding auxiliary equipment for building unit frames.