JPH0648984U - Jig for temporary welding of beam direct connection type joint block - Google Patents

Abstract

(57) [Summary] [Purpose] Regarding jigs used when assembling joint blocks used for joints between columns and beams of steel structures by welding, each of the beam direct connection type joint blocks assembled from flat plates A jig capable of accurately defining the position of an element plate is provided. [Constitution] Columns 14 are provided so as to be capable of advancing and retracting and fixing in four radial directions orthogonal to each other, and partition plate stoppers 15 and 16 are provided on the surface of each column facing the pedestal center. Panel stoppers 22 and 30 are provided on stopper support blocks 21 and 28 that extend forward of the surface facing the center of the gantry so that the protrusion amount can be adjusted in the horizontal direction orthogonal to the advancing and retracting direction of each column. A magnet 1 which attracts the partition plate of the partition block to the partition plate stopper
8 and 19 are mounted, and each column 14 has a first guide rail 4
It is movable on the second guide rail 8 in the same direction provided on the lower slide base 5 which can be moved and positioned freely on the upper side, and the positioning means 1
It can be fixed with 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a jig used when assembling a joint block used for a joint between a column and a beam of a steel frame structure by welding, and in particular, a flat plate of a beam direct connection type joint block assembled by a flat plate. It relates to a jig that defines the mutual positional relationship.

[0002]

[Prior art]

 Conventionally, a joint block that joins a column and a beam of a steel frame structure has a shape in which a so-called blade having an H-shaped cross section equal to that of the beam radially protrudes from a core that is the center of the joint block. A structure was used in which the blades and beams were joined by gusset plates or welding. However, recently, for convenience of transportation and construction, a structure in which a beam is directly welded to the side surface of the core of the joint block without using blades has been used.

FIG. 5 shows an example of this type of beam direct connection type joint block, which is assembled by a flat plate welding structure. The illustrated connection block 37 includes two upper and lower diaphragm plates 39, 42, one through panel plate 40 located at the center of the connection block, and two divided panel plates 41 in a direction orthogonal to this. It is assembled by four partition plates 38 which are assembled at right angles to the end portions of the through panel plate 40 and the split panel plate 41, and the end faces of the beams are field-welded to the outer surface of the partition plate 38.

[0004]

[Problems to be solved by the device]

 Such a flat plate type connection block is conventionally constructed by marking the welding positions of the panel plates 40 and 41 and the partition plate 38 on the upper and lower diaphragm plates 39 and 42 as shown in FIG. In addition, temporary welding is performed on the gantry 1 using the water thread 44 and the squarer 43 while positioning and holding the flat plates constituting the joint block. Therefore, the conventional work of temporarily assembling the flat plate type joint block requires two people, which requires a long working time, a large variation in the assembly accuracy, and requires skill and concentration for the work.

Therefore, the present invention can accurately define the position of each element plate of the beam direct coupling type joint block assembled by the flat plate, and therefore the beam direct coupling type joint block having an accurate shape can be formed in a short time. The challenge is to provide a jig that can be temporarily assembled.

[0006]

[Means for Solving the Problems]

 The jig for temporarily assembling a beam direct connection type joint block according to the present invention is provided with a column 14 that can be advanced and retracted and fixed in four radial axis directions orthogonal to each other on the plane of the gantry 1. Partition plate stoppers 15 and 16 are provided on the surface facing the center of the gantry, and the columns are moved to and from the stopper support blocks 21 and 28 which extend from the side or above of the column 14 to the front of the surface facing the gantry center. The panel plate stoppers 22 and 30 are provided so that the protrusion amount can be adjusted in the horizontal direction orthogonal to the direction.

Magnets 18, 19 for adsorbing the partition plate 38 of the partition block are attached to the partition plate stoppers 15, 16, and stopper support blocks 21, 28 are provided on both sides of the partition block panel plates 40, 41. The stopper plate block stopper 22 of the stopper support block 21 formed as a set of two pieces advancing, and the panel plates 40 and 41 forming a set, and the screw rod 23 or the panel plate stopper 30 of the stopper support block 28 facing the stopper plate block 22. It is possible to adopt a structure in which the tips are positioned by pressing or pinching each other.

Further, in the above structure, the column 14 is mounted on the guide rail 4 in the radial direction of the gantry 1 via the lower slide base 5 which can be moved and positioned freely, and is parallel to the guide rail provided on the lower slide base 5. It is preferable that the position of the column 14 can be moved on the second guide rail 8 and that the advancing position of the column 14 can be fixed on the lower slide base 5 by the positioning means 13.

[0009]

[Action]

 In the jig of this invention, the four columns 14 are positioned in accordance with the positions of the four partition plates 38. That is, when the outer surfaces of the partition plates 38 are brought into contact with the partition plate stoppers 15 and 16 provided on the columns 14, the four partition plates 38 are placed on the respective guide rails 4 so that the partition plates 38 are at the desired positions. Position with. Next, the projection length of the panel plate stoppers 22 and 30 is adjusted to the welding position of the panel plates 40 and 41 (usually the center of the lower diaphragm plate 39) by adjusting the scale of the panel plates 40 and 41, for example. It is set and fixed so that the tip is located at a position retracted from the center of 41 by 1/2 of the plate thickness.

After the positions of the stoppers are set in this manner, the lower diaphragm plate 39 is placed on the pedestal with the column 14 retracted to the outside, and the column 14 is advanced to the set position to move the lower diaphragm plate 39. After positioning, the partition plate 38 is erected on the lower diaphragm plate 39 with the partition plates 38 abutting on the partition plate stoppers 15 and 16, and the stopper support blocks 21 and 28 are placed in front of the surface of the column 14 facing the pedestal center. That is, it is advanced to the inside of the partition plate 38 and is erected on the lower diaphragm plate 39 with the panel plates 40 and 41 being sandwiched between the panel plate stoppers 22 and 30 without pressing them, and the through panel plate 40 and the partition between the both ends thereof. The plate 38, the split panel plate 41, and the partition plate 38 at one end thereof are fixed in this order on the lower diaphragm plate 39 by temporary welding.

According to the structure in which the column 14 is movable on the lower slide base 5 and the advance position can be fixed by the positioning means 13, the retracting operation and the reset operation to the advance position of the column 14 in the above procedure are performed. And can be easily performed.

When the panel plates 40 and 41 and the partition plate 38 are temporarily welded as described above, the topper support blocks 21 and 28 are retracted, and then the upper diaphragm plate 42 is placed and the upper diaphragm plate 42 and the upper diaphragm plate 42 are mounted. The panel plates 40 and 41 and the partition plate 38 are temporarily welded and fixed. For positioning of the upper diaphragm plate 42, for example, a positioning bar 35 with a vertical scale is provided on the side of the column 14 so that the arm 34 can be swung back and forth, and the positioning bar 35 is advanced toward the center of the gantry. The side edge of the upper diaphragm plate 42 is aligned with the side edge of the lower diaphragm plate 39, and the height of the upper diaphragm plate 42 is set by the scale graduation of the alignment rod 35.

As can be understood from the above assembling procedure, in the partition block 37 assembled by the jig of the present invention, the position of the partition plate 38 is set by the position of the column 14, and the panel plates 40, 41 are The position is defined by the panel plate stoppers 22 and 30 provided on the stopper support blocks 21 and 28, and the column and the stopper support blocks 21 and 28 are movable back and forth. The temporarily assembled joint block 37 can be easily removed by defining the positional relationship between the plates and retracting the stopper support blocks 21 and 28 and the column 14. It is now possible to perform the temporary assembly work of one person alone, and the exact position of each element plate of the assembled joint block relative to each other. As a result, a plurality of joint blocks can be efficiently and continuously tentatively assembled, and variations in accuracy of the temporarily assembled joint blocks can be reduced.

[0014]

【Example】

 1 and 2 showing an embodiment of the present invention will be described below. The gantry 1 is provided with a table 3 having a lower diaphragm plate 39 mounted in the center thereof, and four guide rails 4 extend horizontally in a radial direction orthogonal to each other at a position lower than the table. A lower slide base 5 is slidably mounted on the guide rail 4, and a radial screw rod 7 rotated by a handle 6 is screwed onto the lower slide base 5 to rotate the handle 6. The lower slide table 5 is moved and positioned by the radial direction. The lower slide base 5 is provided with a second guide rail 8 in the same direction as the guide rail 4, and a column base 9 is slidably mounted on the second guide rail 8 and the column base 9 is provided with a handle 10. It is connected to a nut member 12 that is screwed with a second screw rod 11 that is rotationally driven by a positioning pin 13 that can be inserted and removed. A column 14 is integrally fixed to the column base 9 and erected.

Therefore, by rotating the handle 6 at the position of the guide rail 4, the column 14 is moved forward and backward on the guide rail 4 according to the size of the joint block to be temporarily assembled, and is positioned. Fine positioning is performed by rotating the handle 10 at the position of the 2 guide rail 8, and by temporarily removing the positioning pin 13 and sliding the column base 9 outward on the 2nd guide rail 8. Can be evacuated. The column 14 that has been temporarily retracted is moved to its original position, and then the pin 13 is inserted to reposition the column 14 at a predetermined position.

On the surface of the column 14 that faces the center of the gantry, partition plate stoppers 15 and 16 that define the position of the partition plate are provided. The lower stopper 15 is fixed to the column and the upper stopper 16 is provided. Is mounted on an ascending / descending table 17 that is vertically movable on the column and can be fixed at any position. Magnets 18 and 19 are attached to the stoppers 15 and 16 toward the center of the gantry. The elevating table 17 is connected to one end of a wire 48 wound around a pulley 47 provided on the upper portion of the column 14, and a balance weight 49 is connected to the other end of the wire.

Two upper stopper support blocks 21 swinging vertically around a horizontal pin 20 are pivotally supported at the upper end of the lift 17 and one of the upper stopper support blocks 21 is pinned. A panel plate stopper 22 formed by a rod parallel to 20 is provided, and a screw rod 23 with a knob facing the stopper 22 is screwed on the other side.

Further, on both sides of the lower end of the column base 9, there are provided width adjusting members 26 that are respectively screwed into the right and left screws of the screw rod 25 that is rotationally driven by the handle 24 and that move symmetrically with the central axis. A lower stopper support block 28 is pivotally supported on the upper surface of the width-shifting member 26 by a vertical fulcrum pin 27 so that the lower stopper support block 28 can swing forward and backward. It is adapted to be fixed by a knock pin 36 which penetrates through 28 and is fitted into a hole provided on the upper surface of the width-shifting member 26. A through hole 29 in the swinging tangential direction is provided at the tip of the lower stopper support block 28, and a lower stopper 30 for a panel plate having stopper holes 50 provided at a predetermined pitch is inserted into the through hole, and a stopper shaft 31 is provided. Can be inserted into the desired stop hole 50 and fixed (see FIG. 2). The panel plate lower stopper 30 has a protruding length that is determined according to the thickness of the panel plates 40 and 41 in the same manner as the upper stopper 22 provided on one of the upper stopper support blocks 21, and is fixed by a stopper shaft 31. .

A positioning stopper 32 for the lower diaphragm plate 39 is fixed to the inner side of the tip end of the width-shifting member 26, and the screw rod 25 is rotated by the handle 24 so that the width-shifting members 26 on both sides of the column 14 can be separated from each other. By moving (closing) in the approaching direction, the four protrusions of the lower diaphragm plate 39 are clamped in the width direction and positioned. A vertical fulcrum shaft 33 is provided on one side surface of the column 14, and a vertical alignment rod 35 is fixed to the tip of an arm 34 whose base end is pivotally supported by the fulcrum shaft. The positioning rod 35 is provided with a scale so that the position of the upper diaphragm plate 42, which will be described later, in the height direction can be set by the scale.

In the apparatus having the above structure, the screw rod 7 screwed onto the lower slide base 5 is rotated by the handle 6 to move the lower slide base 5 back and forth along the guide rails 4 to move the column. Set 14 positions. The setting position of the column 14 is a position where the partition plate 38 is positioned at a predetermined position when the partition plates 38 are attracted to the magnets 18 and 19 provided on the lift table 17. The setting position of the column 14 can be finely adjusted by the second handle 10. After setting the position of the column 14 in this way, the positioning pin 13 is pulled out, the column base 9 is moved outward on the second guide rail 8 and retracted, and the lower diaphragm plate 39 is placed on the pedestal 1. After placing it, the column base 9 is advanced toward the center of the gantry, and the positioning pin 13 is used to reposition it to the set position. The lower diaphragm plate 39 is positioned by sandwiching it in the width direction.

Next, the partition plate 38 is erected on the lower diaphragm plate 39 while being attracted to the magnets 18 and 19. Then, the width-shifting member 26 is slightly opened, one of the upper stopper support blocks 21 (the side on which the panel plate upper stopper 22 is mounted) is rotated downward, and one of the lower stopper support blocks 28 on the same side is rotated. By pivoting inward from the side and fixing the advanced position with the knock pin 36, the upper panel plate stopper 22 and one of the lower panel plate stoppers 30 are further attached to the center of the pedestal of the partition plate 38. Advance to the side. In this state, the through panel plate 40 and the split panel plate 41 are erected on the lower diaphragm plate 39 so as to abut the panel plate stoppers 22 and 30, and the stopper support block 21 on the side where the upper screw rod 23 is provided. And the other one of the lower stopper support blocks 28 are advanced, and the advanced position of the newly advanced lower stopper support block 28 is fixed with a knock pin 36, and then the handle 24 is used to turn the screw rod 25. By moving the closing member 26 to close it, the end portions of the through panel plate 40 and the divided panel plate 41 are clamped and fixed.

In this state, the four partition plates 38, the through panel plate 40, and the divided panel plate 41 are positioned, so that these respective element plates and the lower diaphragm plate 39 are fixed by temporary welding. The widthwise position of the partition plate 38 is set by aligning the side edge of the protruding portion of the lower diaphragm plate 39 with the side edge of the partition plate 38. When there is a dimensional error in the width direction between the partition plate 38 and the lower diaphragm plate 39, the position of the partition plate 38 is determined so that the error is distributed to both sides. As for the position of the joint between the split panel plate 41 and the through panel plate 40, a horse riding type right angle jig 45 as shown in FIG. It can be set by positioning the panel plate 41 (see FIG. 4).

When the panel plates 40 and 41 and the partition plate 38 are temporarily attached to the lower diaphragm plate 39 in this manner, the upper and lower stopper support blocks 21 and 28 are retracted, and the panel plates 40 and 41 and the partition plate 38 are placed on the lower plate. The upper diaphragm plate 42 is placed, the arm 34 is rotated, and the alignment rod 35 is advanced toward the center of the pedestal of the column 14. With this alignment rod 35, the side edge of the upper diaphragm plate 42 is moved to the lower diaphragm plate 39. The height of the upper diaphragm plate 42 with the scale provided on the positioning rod 35, and then temporarily weld the upper diaphragm plate 42 to the panel plates 40 and 41 and the partition plate 38. The temporary assembling work of the joint block having the structure shown in FIG. 5 is completed.

[0024]

[Effect of device]

 By using the jig of the present invention described above, it becomes possible for one worker to temporarily assemble the flat plate assembly type joint block in a short time, which has required a great deal of labor and skill in the past. Since each element plate constituting the joint block can be accurately positioned, it is possible to obtain a joint block having an accurate shape with no variation in accuracy by a simple operation.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a jig of this invention.

FIG. 2 is a perspective view showing a column and a stopper.

FIG. 3 is a perspective view showing an example of a positioning jig for panel plates to each other.

FIG. 4 is a plan view schematically showing a positioning state of each element plate of the finishing block.

FIG. 5 is a perspective view of a flat plate assembled beam direct connection type joint block.

FIG. 6 is an explanatory view showing a conventional assembling work of a flat plate type joint block.

FIG. 7 is a perspective view showing a scribe line of an element plate in a conventional method.

[Explanation of symbols]

 1 Stand 14 Column 15 Partition plate stopper 16 Partition plate stopper 17 Elevating table 18 Magnet 19 Magnet 21 Stopper support block 22 Panel plate upper stopper 28 Stopper support block 30 Panel plate lower stopper 38 Partition plate 39 Lower diaphragm plate 40 Through Panel plate 41 Divided panel plate 42 Upper diaphragm plate

Claims (3)

[Scope of utility model registration request] 1. A column (14) is provided so as to be capable of advancing and retracting and fixing in four radial directions orthogonal to each other in the plane of the gantry (1), and a partition plate stopper (on the surface of the column facing the gantry center). 15) and (16) are provided, and the stopper support blocks (21) and (28) advance from the side or above of the column (14) to the front of the surface facing the center of the gantry. A jig for temporary assembly of a beam direct connection type joint block, which is provided with panel plate stoppers (22), (30) whose protrusion amount can be adjusted in the horizontal direction orthogonal to the direction. 2. The partition plate stoppers (15), (16) are provided with magnets (18), (19) for attracting the partition plate (38) of the partition block, and the stopper support block (21), (28) is a stopper block (21) provided with a pair of two panels advancing on both sides of the panel plates (40), (41) of the connection block. ), (28) are positioned at the ends of the panel plate stoppers (22), (30), and the jig for temporary assembly of the beam direct connection type joint block according to claim 1 is characterized in that. 3. The lower slide table (5), through which the column (14) is movable and positionable on the first guide rail (4) in the radial direction of the frame (1). It is characterized in that it is movable on a second guide rail (8) parallel to the above-mentioned guide rail and fixed to the lower slide base (5) at the advanced position by a positioning means (13). A jig for temporary assembly of a beam direct connection type joint block according to claim 1 or 2.