JP2511433Y2 - Jig for temporary attachment of end plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an end plate used when temporarily welding an end plate to an end surface of a square columnar base material with a predetermined gap. Regarding a temporary attachment jig. It can be used to manufacture the columns that make up the framework of a residential unit.

[Background technology]

The skeleton of the housing unit that constitutes the unit housing is constructed by welding beams to both ends of a square tubular pillar. At this time, end plates having the same shape as the end surface shape of the pillar are welded to both end surfaces of the pillar in advance in order to fix the unit housing to the foundation or to connect the upper and lower housing units to each other. Is being done.

Conventionally, when welding end plates to both ends of a column,
Beveling is performed in advance on the welded portions (butting portions) between the end faces of the columns and the end plates. After that, end plates are abutted against both ends of the pillar, and in this state, the end plates are temporarily welded to the pillar from at least 3 outer surfaces of the 4 outer surfaces of each end of the pillar, and then the entire circumference of the end plate is welded. The work procedure of welding with a robot is adopted.

[Problems to be solved by the device]

However, according to the conventional method, when welding the entire circumference of the end plate by the welding robot, in order to integrally and firmly weld the end plate to the column, a groove is preliminarily formed in the welded portion between the end plate and the end face of the column. However, there is a drawback that the number of processing steps is increased.

As a method to solve this, it is considered to set the end plates to the end faces of the pillars with a predetermined gap, and in this state, temporarily weld the end plates to the pillars from the three outer surfaces of each end of the pillars. To be For example, a plate material corresponding to a gap separating the end surface of the pillar and the end plate is interposed between the end surface of the pillar and the end plate to bring them into contact with each other, and then the plate material is removed to temporarily fix the end plate to the pillar. It is conceivable to attach and weld.

However, in this method, since the plate material is interposed between the end surface of the column and the end plate to bring them into contact with each other, and then the plate material is removed, temporary welding is required. There is a problem in that the gap between the end face and the end plate is likely to change, and a predetermined gap cannot be secured over the entire circumference of the column.

Here, the object of the present invention is to eliminate the above-mentioned conventional drawbacks, and to accurately and accurately dispose the end plate with respect to the end surface of the column base material with a predetermined gap, and more easily than the three outer surfaces of the column base material. An object is to provide a jig for temporarily attaching an end plate that can be temporarily welded to.

[Means for solving the problem]

Therefore, the jig for temporarily attaching the end plate of the present invention has an end plate having a fitting frame that fits inside the end of the column base material with respect to the end surface of the square columnar base material. A jig for temporarily attaching an end plate, which is used when performing temporary attachment welding at a distance from each other, is applied to a plate-shaped jig body having a thickness substantially equal to the gap, on the outer side surface of the fitting frame of the end plate. It is characterized in that escape holes are formed between the adjacent sandwiching pieces, leaving three sandwiching pieces in contact with each other.

[Action]

When temporarily welding the end plate to the end surface of the pillar base material, first, the jig frame 3 is attached to the fitting frame of the end plate.
Fit the two clamp pieces. In this state, when the fitting frame of the end plate is fitted into the end portion of the pillar base material, the end surface of the pillar base material and the end plate are kept in a predetermined gap with the jig body interposed therebetween.

At this time, since the thickness of the jig main body is formed in advance to a thickness equal to the gap separating the end surface of the pillar base material and the end plate, the end surface of the pillar base material and the end plate are formed over the entire circumference thereof. It is kept in a predetermined gap set in advance. In addition, since the escape holes are formed in the jig body between the adjacent clamping pieces, the escape holes are formed from these escape holes while the jig body is sandwiched between the end surface of the column base material and the end plate. The end plates can be tack welded on the three outer sides of the substrate.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a production process of a housing unit 5 (see FIG. 3) assembled by the ceiling panel 1, the floor panel 2 and the two end panels 3 and 4 shown in FIG.

The ceiling panel 1 carries in the long side beam 11 produced in the long side beam production line 21 to the ceiling panel production line 22, and in this production line 22, the two long side beams 11 are arranged in parallel, and in between. It is made by connecting the field edges 12 and attaching the ceiling panel 13.

The floor panel 2 carries the long side beam 11 produced in the long side beam production line 21 into the floor panel production line 23, and
In 23, it is made by arranging two long side beams 11 in parallel, connecting joists (not shown) between them, and attaching a floor panel 14.

The gable panels 3 and 4 carry the columns 15 produced in the column production line 24 and the short-side beams 16 produced in the short-side beam production line 25 into the gable panel production line 26, respectively. It is made by arranging columns 15 of a book in parallel and connecting short side beams 16 between both ends thereof. A joint 17 is attached to both ends of each pillar 15 in a direction perpendicular to the short-side beam 16.

These ceiling panel 1, floor panel 2 and wife panel 3,
4 is carried into the total assembly line 27, and in this total assembly line 27, the wife panels 3 and 4 are arranged on both sides of the ceiling panel 1 and the floor panel 2 which are arranged in parallel vertically.
The housing unit 5 (see FIG. 3) is assembled by welding the respective joints 17 in a state where they are fitted to both ends of the long side beams 11 of the ceiling panel 1 and the floor panel 2.

The housing unit 5 is sent to the outer wall panel mounting line 28, where the outer wall panel is mounted at a predetermined position on the outer surface, and then is sent to the feature / equipment mounting line 29, where a staircase is placed at a predetermined position inside. Units, kitchen units, bath units, etc. are installed and completed. It should be noted that a plurality of completed housing units 5 can be transported by truck or the like to a construction site, where they can be combined to build a unit housing.

FIG. 4 is a block diagram showing a detailed process of the pillar production line 24, and FIG. 5 is a detailed perspective view of the pillar 15 produced thereby. The plurality of square tube-shaped pillar base materials 31 stocked in the stocking step 41 are carried into the first transport conveyor 42 one by one. Therefore, first, in the cutting step 43, the length dimension corresponding to each module of the housing unit 5 is cut, and subsequently, in the perforation step 44, three diaphragm provisional holes 32 are bored on both end sides of the pillar base material 31. It In addition, in this perforation step 44, the 2
Two gable holes 33 are drilled.

Then, it is carried into the second conveyor 45. Therefore,
First, in the temporary diaphragm attaching step 46, the diaphragms 34 are temporarily attached to the temporary attaching positions in both ends of the pillar base material 31, respectively, and subsequently, in the plate thickness detecting step 47, the plate thickness of the pillar base material 31 is detected. Then, in the diaphragm main attachment step 48, the entire circumference of the diaphragm 34 temporarily attached to the temporary attachment positions in both ends of the column base material 31 is welded.

Next, it is carried into the end plate temporary attaching step 50 by the third transfer conveyor 49, and the end plates 35 are temporarily attached to both end surfaces of the pillar base material 31, and then transferred into the fourth transfer conveyor 51. Therefore, first, in the end plate main attaching step 52, the entire circumference of the end plate 35 is welded, and subsequently, in the sanding step 53, two of the four welding surfaces of the end plate 35 (the joint 17 and the short side beam 16 are Sanding of the two sides to be attached is performed.

Then, it is carried into the fifth conveyor 54. Therefore,
First, the joint 17 is temporarily attached to both ends of the pillar base material 31 in the joint temporary attaching step 55, and subsequently, the entire circumference of the joint 17 is welded in the joint final attaching step 56. The pillars 15 produced in this way are sent to the wife panel production line 26 in the next step.

FIG. 6 shows a detailed structure of the end plate temporary attaching step 50. In the end plate tacking step 50, a support mechanism 131 for supporting both end sides of the column base material 31 which has been loaded in the horizontal direction by the third transport conveyor 49 in the longitudinal direction.
A and 131B, and two end plate setting mechanisms 141 and 151 that are arranged on both end sides of the column base material 31 supported by the support mechanisms 131A and 131B and set end plates 35 on both end faces of the column base material 31 are provided. Has been.

Here, as shown in FIG. 5, the end plate 35 has an end plate 35A having substantially the same shape as the end surface contour of the pillar base material 31, and the pillar base material 31 integrally formed on the inner end surface of the end plate 35A. A fitting frame 35B that fits in the end portion of the above, and two connecting holes 35C that are bored in the end plate 35A.

As shown in FIG. 7, each of the support mechanisms 131A and 131B includes a base 132 and an end portion side of the pillar base material 31 fixed on the base 132 and conveyed by the third conveyer 49. An L-shaped support member 133 for supporting, and a clamp member rotatably provided on the base 132 via a pin 134 to clamp the pillar base material 31 supported by the support member 133 from above.
It is composed of 135 and.

Here, the support member 133 has two L-shaped support surfaces 133A and 133B that are fitted to two adjacent outer surfaces of the pillar base material 31.
Have. The support surface 133A is formed at an inclination angle of 30 degrees with respect to the horizontal plane. The support surface 133B is the support surface 133A.
It is formed at an angle of 90 degrees, that is, at an angle of 60 degrees with respect to the horizontal plane. Therefore, the pillar base material 31 that has been brought in
The two adjacent outer side surfaces are automatically positioned in a posture in which the two outer side surfaces are supported by both supporting surfaces 133A and 133B and are inclined with respect to the horizontal plane, and the longitudinal direction is substantially horizontal.

As shown in FIG. 8, the one end plate setting mechanism 141 includes a base 142 and a guide rail 14 attached to the base 142.
A movable base 144 that is provided so as to be movable in the axial direction of the pillar base material 31 via 3, and a pin attachment that is attached to the movable base 144 and that holds the end plate 35 in a posture corresponding to the end surface of the pillar base material 31. It is composed of a plate 145. here,
As shown in FIG. 9, the pin mounting plate 145 is provided with two guide pins 146 and 147 that are fitted into the two holes 35C of the end plate 35.

As shown in FIG. 10, the other end plate setting mechanism 151 includes a base 152 and a guide rail 15 attached to the base 152.
A movable base 154 that is provided so as to be movable in the axial direction of the pillar base material 31 via 3, and a pin attachment that is attached to the movable base 154 and that holds the end plate 35 in a posture corresponding to the end surface of the pillar base material 31. It is composed of a plate 155. here,
As shown in FIG. 11, the pin mounting plate 155 is provided with two guide pins 156, 157 which are fitted into the two holes 35C of the end plate 35.

FIG. 12 shows an end plate temporary attachment jig 161 used for temporarily attaching the end plates 35 to both end faces of the column base material 31 with a constant gap. The end plate temporary attachment jig 161 includes a rectangular plate-shaped jig body 163 having a thickness corresponding to a gap 162 formed between the end plate 35A of the end plate 35 and the end surface of the pillar base material 31.

In the jig body 163, the 4 of the fitting frame 35B of the end plate 35
Three clamping pieces 164,165, which are fitted to the three outer surfaces of the outer surface
Relief hole 16 between the sandwiching pieces 164, 165, 166 that are adjacent to each other leaving 166.
7,168 are punched respectively, and a gripping hole 169 is punched near the intermediate sandwiching piece 165.

The holding pieces 164, 166 are formed in a state of facing the side 163A of the jig body 163 on the side opposite to the holding hole 169 with the width dimension of the fitting frame 35B spaced apart, and the inner end edges are arcuate. Has been formed. Further, the sandwiching piece 165 is the sandwiching piece 1
It is formed at right angles to these between 64 and 166.

Therefore, when the jig body 163 is inserted into the fitting frame 35B of the end plate 35 with the holding pieces 164, 166 facing down, the three holding pieces 164, 165, 166 are fitted to the three outer surfaces of the fitting frame 35B. . At this time, the sandwiching pieces 164 and 166 are displaced from the center position of the two outer surfaces of the fitting frame 35B in which the sandwiching pieces 164 and 166 are fitted, toward the outside surface where the sandwiching pieces are not fitted.
65 length dimensions are set.

Next, the operation of the end plate temporary attaching step 50 will be described.

The pillar base material 31, which has been conveyed in the longitudinal direction in the horizontal posture by the third conveyer 49, is first supported by the support mechanism 131.
It is supported by the support members 133 of A and 131B. At this time, the pillar base material 3
1 is an L-shaped support surface of the support member 133 having two adjacent outer surfaces
The 133A and 133B automatically position the robot in a posture inclined with respect to the horizontal plane and in a posture in which the longitudinal direction is substantially horizontal. Then, the clamp member 135 is rotated around the pin 134 as a fulcrum to clamp the pillar base material 31 from above.

Next, after the guide pins 146, 147, 156, 157 of the pin mounting plates 145, 155 of the end plate setting mechanisms 141, 151 are made to hold the two holes 35C of the end plate 35, the fitting frame 35B of each end plate 35 is temporarily fixed with an end plate. Stuff 161
Is fitted.

To this end, after gripping the grip hole 169, the jig body 163 is set to the fitting frame 35B of the end plate 35 with the sandwiching pieces 164 and 166 on the lower side.
Plug in. Then, the two sandwiching pieces 164 facing each other,
166 is inserted while being fitted to the two outer side surfaces of the fitting frame 35B, and finally, the intermediate holding piece 165 comes into contact with the outer side surface of the fitting frame 35B. Therefore, the three holding pieces 164, 165, 166 are attached to the fitting frame 3
It will be in a state of being fitted to the 3 outer surface of 5B.

After that, when the movable bases 144, 154 of the end plate setting mechanisms 141, 151 are advanced toward the end surface of the pillar base material 31,
The fitting frame 35B of the end plate 35 is fitted into the end portion of the pillar base material 31, and the end plate 35A of the end plate 35 and the end surface of the pillar base material 31 are in contact with each other with the end plate temporary fixing jig 161 sandwiched therebetween. It will be in the state of doing. In other words, the end plate temporary attachment jig 16
The gap 162 between the end plate 35A of the end plate 35 and the end face of the pillar base material 31 is maintained at a predetermined gap, which is separated by the thickness of the jig body 163 of No. 1.

In this state, the end plates 35 are tack-welded from the outer peripheral surface of the pillar base material 31 at three positions. At this time, as shown in FIG. 12, since the escape holes 167, 168 are formed between the sandwiching pieces 164, 165, 166 adjacent to each other in the end plate temporary attachment jig 161, it is possible to perform temporary attachment welding from these escape holes 167, 168. it can. Moreover, as shown in FIG. 14, since the three outer surfaces of the pillar base material 31 face the worker, the worker can easily perform the tack welding with the welding head facing downward while keeping the welding head in a fixed position. You can do it as it is.

Therefore, according to the present embodiment, the carried-in pillar base material 31 is
Since the support mechanisms 131A and 131B automatically position the adjacent two outer side surfaces in a posture inclined with respect to the horizontal plane and in a posture in which the longitudinal direction is substantially horizontal, the mechanism for positioning the pillar base material 31. Can be done easily. That is, there is an advantage that a pusher or the like as in the past is not required.

Further, on both end sides of the pillar base material 31 supported by the support mechanisms 131A and 131B, a movable base 144 that is movable in the axial direction of the pillar base material 31,
154 and end plate setting mechanism 141,1 consisting of pin mounting plates 145,155 mounted on each movable base 144,154
Since 51 is arranged, the end plate 35 is held on each pin mounting plate 145, 155 in a posture corresponding to the end surface of the pillar base material 31, and the jig 161 for temporarily attaching the end plate is attached to the fitting frame 35B of the end plate 35. If the movable bases 144, 154 are moved toward the end faces of the pillar base material 31 and are brought into contact with each other while being inserted, the end plates 35 can be accurately set with respect to both end surfaces of the pillar base material 31 with a predetermined gap. You can

Further, the end plate tacking jig 161 has a jig main body 163 having a thickness corresponding to a gap between the end plate 35A of the end plate 35 and the end surface of the pillar base material 31, and the fitting frame 35B of the end plate 35. Of the four outer side surfaces of No. 4, the three sandwiching pieces 164, 165, 166 are fitted, and the escape holes 167, 168 are punched between the adjacent sandwiching pieces 164, 165, 166.
The gap between the end plate 35A of 5 and the end face of the pillar base material 31 can be maintained at a predetermined gap over the entire circumference, and the end plates are formed from the escape holes 167 and 168 to the three outer surfaces of the pillar base material 31. 35 can be tack welded.

Also, the end plate set on the end surface of the pillar base material 31.
When tack-welding 35, the three outer surfaces of the column base material 31 face the worker, so that the worker can easily tack-weld the three tack positions while staying in the fixed positions. Moreover, these three tack weldings can be performed with the welding head all facing downward, so that the quality can be stabilized.

It should be noted that the present invention is not limited to the above-described embodiments, and includes the following modifications.

For example, the inclination angles of the support surfaces 133A and 133B that support the two adjacent outer surfaces of the pillar base material 31 are not limited to the angles described in the above embodiment. The point is that the two adjacent outer side surfaces of the column base material 31 that has been loaded may be positioned at an angle that is automatically positioned in a posture inclined with respect to the horizontal plane.

Further, in the above embodiment, each end plate setting mechanism
Although the movable bases 144, 154 of 141, 151 are manually moved in the axial direction of the column base 31, the movable bases 144, 154 may be automatically moved by a driving means such as a cylinder.

Further, in the above embodiment, the end plate 35 is held in a predetermined posture by the guide pins 145, 146, 155, 156, but it may be constituted by a member made of a permanent magnet.

[Effect of device]

As described above, according to the present invention, the end plate can be tack-welded to the end surface of the pillar base material accurately with a predetermined gap and more easily than the three outer surfaces of the pillar base material.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a block diagram showing a production process of a housing unit, FIG. 2 is an exploded perspective view of the housing unit, and FIG. 3 is an assembly perspective view of the housing unit.
FIG. 4 is a block diagram showing the detailed steps of the pillar production line, FIG. 5 is a perspective view showing the pillars produced by the pillar production line of FIG. 4, and FIG. 6 shows the detailed structure of the end plate temporary attaching step. 7 and 8 are views showing a support mechanism, FIG. 8 is a view showing one end plate setting mechanism, and FIG. 9 is a view showing FIG.
IX-IX view from the direction of the arrow, FIG. 10 shows the other end plate setting mechanism, FIG. 11 is a view from the XI-XI arrow of FIG. 10, and FIG. FIG. 13 is a front view showing a jig for welding, FIG. 13 is a sectional view taken along line XIII-XIII in FIG. 12, and FIG. 14 is a view showing a state of tack welding of an end plate. 31 …… Column base material, 35 …… End plate, 35B …… Mating frame, 161 …… End plate temporary attachment jig, 162 …… Gap,
163 …… Jig body, 164,165,166 …… Clamping piece, 167,168…
… Escape hole.

Claims (1)

(57) [Scope of utility model registration request] 1. An end plate having a fitting frame that fits into the end of the column base material is temporarily welded to the end surface of the square column base material with a predetermined gap. A jig for temporarily attaching an end plate, which is adjacent to a plate-like jig body having a thickness substantially equal to the gap, leaving three sandwiching pieces abutting against three outer side surfaces of the fitting frame of the end plate. A jig for temporarily attaching an end plate, characterized in that escape holes are formed between the sandwiching pieces.