JPH08199825A - Assembling device for truss junction - Google Patents

Abstract

PURPOSE: To enable a plurality of joint members to be positioned with respect to a node and held in place accurately and efficiently. CONSTITUTION: A plane-angle adjustment stand 14 is moved circumferentially along a guide rail 13 and positioned, and a positioning stand 16 is moved close to or away from a circular board 11 by moving along a guide rail 15; further, a side-angle adjustment stand 18 is oscillated relative to the positioning stand 16 for the adjustment of the plane angle relative to a node 5, the mounting position, and the side angle of each joint member 6, so that the plurality of joint members 6 are positioned with respect to the node 5 and held in place accurately and efficiently.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for assembling a truss material joint in a truss structure for a steel frame single-layer lattice dome having a large space frame.

[0002]

9 and 10 show the overall structure of a single-layer lattice dome, and FIG. 11 shows the situation of the main parts in FIG. The single-layer lattice dome 1 has a curved surface formed by the polygonal shape of the triangular lattice 2, and the triangular lattice 2 is configured by connecting the truss joints 3 with the main frame member 4. As shown in FIG. 12, the truss joint portion 3 is constructed by welding and fixing six joint members 6 in the circumferential direction of the node 5 with the node 5 as a core. The triangular lattice 2 is formed by fixing the parts. Since the curved surface of the single-layer lattice dome 1 is formed by the polygonal shape of the triangular lattice 2, the attachment angle of the joint member 6 to the node 5 of the truss joint 3 is complicated as shown in FIG. High precision is required. In addition, the structure of the single-layer lattice dome 1 is governed by overall buckling, and high precision is required to minimize the initial irregularity that induces it.

Conventionally, in assembling the truss joint portion 3 in the single-layer lattice dome 1, the joint material 6 is individually positioned and fixed to the node 5 by a general-purpose jig, and the joint material 6 is welded to the node 5. ing.

[0004]

Conventionally, the truss joint portion 3 is used.
In the assembly, since the node 5 and the joint member 6 were individually fixed and welded to each other, a lot of work time was required to weld the plurality of joint members 6. Also, the joint material 6
Since each of them was positioned and fixed by a general-purpose jig and welded, it required skill to maintain accuracy and it was difficult to maintain accuracy. Therefore, the efficiency of assembly is poor and the quality of the product is unstable.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an apparatus for assembling a truss material joint portion capable of efficiently positioning and fixing a plurality of joint members to a node.

[0006]

In order to achieve the above object, the structure of the present invention is an assembling apparatus for assembling a truss material joint portion in which a plurality of joint members are arranged in the circumferential direction of a node, and which has a central portion. A base provided with a holding portion for fixedly holding the node; a flat surface angle adjustment base provided on an outer peripheral portion of the holding portion of the base and capable of positioning and moving in a circumferential direction around the holding portion; It includes a position adjustment table provided on the plane angle adjustment table and capable of moving toward and away from the holding portion, and a side surface angle adjustment table provided on the position adjustment table and swingably mounting the joint member. It is characterized by

[0007]

Function: The node is fixedly held by the holding portion of the base, and the joint material is placed on the side surface angle adjusting base. By positioning and moving the plane angle adjustment base in the circumferential direction with respect to the base, the plane angle with respect to the node of the joint material is adjusted, and the position adjustment base approaches the holding unit with respect to the plane angle adjustment base. By adjusting the attachment / detachment position of the joint material with respect to the node, the side angle of the joint material is adjusted with respect to the node by swinging the side angle adjustment base with respect to the position adjustment base. Do.

[0008]

1 is a side view of an apparatus for assembling a truss material joint portion according to an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a view taken along the line III-III of FIG. Is shown. Since the illustrated assembling apparatus assembles the truss joint portion 3 shown in FIGS. 12 and 13, the description of the truss joint portion 3 is omitted.

As shown in the figure, a circular base plate 1 as a base.
A holding plate 12 as a holding portion is provided at the center of 1.
An annular guide rail 13 is provided on the upper surface of the circular base plate 11 in the outer peripheral portion of the holding plate 12. A plurality of flat surface angle adjustment bases 14 are supported in the circumferential direction of the guide rails 13, and the flat surface angle adjustment bases 14 can be positioned and moved in the circumferential direction along the guide rails 13, respectively. Guide rails 15 extending in the direction of the center of the circular base plate 11 are provided on the upper surface of the plane angle adjustment base 14, and a position adjustment base 16 is supported on the guide rails 15 so as to be reciprocally movable. The position adjusting table 16 moves back and forth along the guide rail 15 to move toward and away from the holding plate 12. A side surface angle adjustment table 18 is swingably supported on the upper surface of the position adjustment table 16 via a swing mechanism 17, and the joint member 6 is placed on the side surface angle adjustment table 18.

The node 5 is fixedly held on the holding plate 12 of the circular base plate 11, and the joint member 6 is placed on the side angle adjusting base 18.
The plane angle adjustment base 14 is positioned and moved in the circumferential direction along the guide rail 13 with respect to the circular base plate 11 to adjust the plane angle of the joint material 6 with respect to the node 5. By moving the position adjusting table 16 back and forth with respect to the plane angle adjusting table 14 along the guide rails 15, the joint member 6 is moved toward and away from the node 5 fixed to the holding plate 12, and the joint member 6 is moved toward and away from the node 5. The attachment position of the material 6 with respect to the node 5 is adjusted. Further, the swing mechanism 17 allows the position adjusting table 16
By swinging the side angle adjustment base 18 with respect to
The side angle of the joint member 6 with respect to the node 5 is adjusted.

The support state of the plane angle adjustment base 14 with respect to the circular base plate 11 and the support state of the position adjustment base 16 with respect to the plane angle adjustment base 14 will be described with reference to FIGS. 4 to 6. FIG. 4 shows an enlarged state of a main part in FIG. 3, FIG. 5 shows a view taken along the line VV in FIG. 4, and FIG. 6 shows a side view state of FIG.

As shown in FIGS. 4 and 5, the plane angle adjusting base 14 is provided with a roller device 19, and the plane angle adjusting base 14 is attached to the guide rail 13 of the circular base plate 11 via the roller device 19. It is supported for positioning and movement. That is, the roller device 19 is provided with the guide rollers 20 rolling on the upper and lower surfaces of the guide rail 13, and further with the guide rollers 21 rolling on the peripheral edge of the guide rail 13. In addition, the guide rail 13 is attached to the plane angle adjustment stand 14.
A pair of fixing pieces 2 for sandwiching and positioning in the circumferential direction
2 is provided, and the fixed piece 22 is opened and closed with respect to the guide rail 13 by rotating the screw rod 23. A scale 24 is attached to the outer circumference of the circular base plate 11, and a scale 25 is attached to the fixed piece 22 on the outer circumference side. That is, when the screw rod 23 is rotated and the guide rail 13 is sandwiched by the pair of fixing pieces 22, the scale 24 and the scale 25 are arranged at the circumferential position of the plane angle adjusting base 14, that is, the node 5 of the joint member 6. The plane angle with respect to can be read.

As shown in FIGS. 4 and 6, a pair of guide rails 15 extending toward the center of the circular base plate 11 are provided on the upper surface of the plane angle adjusting base 14, and a guide rail 15 is provided on the lower surface of the position adjusting base 16. A guide 26 supported by the rail 15 is provided. The position adjustment base 16 can move toward and away from the holding plate 12 along the guide rail 15 of the plane angle adjustment base 14 via the guide 26. The position adjustment base 16 is provided with a toggle clamp 27, and the toggle clamp 27 has a lever 28.
A push piece 29 is provided which is pressed against the plane angle adjustment base 14 by operating. That is, the lever 28 of the toggle clamp 27 is operated to press the pushing piece 29 against the flat surface angle adjusting base 14, whereby the position of the position adjusting base 16 with respect to the flat surface angle adjusting base 14, that is, the position of the joint member 6 with respect to the node 5. The attachment position is fixed.

Next, the supporting state of the side surface angle adjusting table 18 with respect to the position adjusting table 16 will be described with reference to FIGS. 1, 7, and 8. FIG. 7 shows a view taken along the line VII-VII in FIG. 1, and FIG. 8 shows a view taken along the line VIII-VIII in FIG.

As shown in the figure, a side surface angle adjusting table 18 is swingably supported on the upper surface of the position adjusting table 16 via a swinging mechanism 17. That is, the front portion and the rear portion of the side surface angle adjusting base 18 are individually guided by the pair of guide columns 30 to be lifted and lowered individually.
A lifting screw shaft 31 that is parallel to the pair of guide columns 30 is provided at the front and rear of the unit 8. A pair of guide columns 30
The lower part of the lifting screw shaft 31 and the lifting screw shaft 31 are supported by the position adjustment base 16 so as to be lifted up and down.
The upper part of is rotatably supported by the side surface angle adjustment table 18. An inner peripheral threaded portion 33 of a wheel screw 32 is screwed onto the lower portion of the lifting screw shaft 31, and the wheel screw 32 is attached to the position adjusting base 1.
6 is rotatably supported.

A pair of handle shafts 34 are rotatably supported on the side surface angle adjusting base 18, and a worm 35 is attached to the handle shaft 34. Each worm 35
Meshes with the outer peripheral thread 36 of the wheel screw 32, and the wheel screw 32 is rotated via the worm 35. When the wheel screw 32 is rotated, the lifting screw shaft 31 is lifted and lowered, and the side face angle adjustment base 1 together with the pair of guide columns 30.
The front and rear parts of 8 are individually moved up and down. A handle 37 is provided on each of the handle shafts 34, and by rotating the handle shafts 34 via the handle 37, the side surface angle adjusting base 18 via the wheel screw 32 and the lifting screw shaft 31.
Up and down. A scale plate (not shown) is installed on the guide column 30 so that the vertical position of the side surface angle adjusting base 18, that is, the side surface angle of the joint member 6 with respect to the node 5 can be read. The vertical position of the side surface angle adjusting table 18 with respect to the position adjusting table 16 is fixed by a worm brake.

The operation of the truss material joining portion assembling apparatus having the above construction will be described. The node 5 is fixedly held on the holding plate 12 of the circular base plate 11, and the joint member 6 is placed on the side surface angle adjusting base 18.

First, the pair of fixing pieces 22 are opened with respect to the guide rail 13 by rotating the screw rod 23 of the plane angle adjusting base 14, and the plane angle adjusting base 14 is guided along the guide rail 13 via the roller device 19. Move it in the circumferential direction. By moving the plane angle adjustment base 14, the plane angle of the joint member 6 with respect to the node 5 is adjusted. The plane angle is adjusted by reading the amount of movement of the plane angle adjustment base 14 using the scale 24 and the scale 25. After the predetermined plane angle is obtained, the screw rod 23 is rotated and the guide rail 13 is sandwiched between the pair of fixing pieces 22 to fix the plane angle adjusting base 14.

Next, the lever 28 of the toggle clamp 27 provided on the position adjusting base 16 is operated to release the pressing of the pressing piece 29 against the plane angle adjusting base 14,
The position adjustment table 16 is moved to the plane angle adjustment table 1 via the guide 26.
4 is moved along the guide rail 15. By moving the position adjusting base 16 with respect to the plane angle adjusting base 14, the position adjusting base 16 moves toward and away from the holding plate 12, and the attachment position of the joint material 6 with respect to the node 5 is adjusted. . After moving the position adjustment table 16 to a predetermined adjustment position,
By operating the lever 28 of the toggle clamp 27, the pressing piece 29 is pressed against the flat surface angle adjusting base 14, and the position of the position adjusting base 16 with respect to the flat surface angle adjusting base 14, that is, the attachment position of the joint material 6 to the node 5 is set. Fix it.

Next, the handle shaft 3 is passed through the handle 37.
By rotating 4 the front and rear parts of the side surface angle adjusting base 18 are individually moved up and down via the wheel screw 32 and the lifting screw shaft 31, and the side surface angle adjusting base 18 is swung.
The side surface angle adjustment table 18 is swung to adjust the side surface angle of the joint member 6 with respect to the node 5.

As described above, the plane angle, the attachment position and the side surface angle of the joint member 6 with respect to the node 5 are adjusted, the state of the joint member 6 with respect to the node 5 is adjusted to an arbitrary position, and welding or the like is performed. The assembling of the truss joint part 3 is carried out. Therefore, by using the above-described assembling apparatus, the plurality of joint members 6 can be accurately and efficiently positioned and fixed to the node 5, and the assembling work of the truss joint portion 3 can be performed accurately in a short time. It will be possible.

[0022]

The apparatus for assembling the truss material joint of the present invention is
A plane angle adjustment stand that can be positioned and moved in the circumferential direction around the holding part that holds the node, a position adjustment stand that is provided on the plane angle adjustment stand and can move toward and away from the holding part, and a position adjustment stand It is equipped with a side angle adjustment base for swingably mounting the connector, and the plane angle adjustment base is positioned and moved in the circumferential direction, and the position adjustment base is moved toward and away from the holding part. In addition, by swinging the side surface angle adjustment table with respect to the position adjustment table, the plane angle, the mounting position, and the side surface angle of the joint material with respect to the node are adjusted. The joint material can be positioned and fixed accurately and efficiently. As a result, the work of assembling the truss material joint can be performed efficiently and accurately, and the work time can be shortened and the product quality can be stabilized.

[Brief description of drawings]

FIG. 1 is a side view of an apparatus for assembling a truss material joint portion according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

3 is a view taken along the line III-III in FIG.

FIG. 4 is an enlarged view of a main part in FIG.

5 is a view taken along the line V-V in FIG.

FIG. 6 is a side view of FIG. 4;

7 is a view taken along the line VII-VII in FIG.

8 is a view taken along the line VIII-VIII in FIG.

FIG. 9 is a side view of the overall configuration of a single-layer lattice dome.

FIG. 10 is a plan view of the overall configuration of a single-layer lattice dome.

11 is an enlarged view of a main part in FIG.

FIG. 12 is an explanatory view of a truss joint portion.

FIG. 13 is an explanatory view of a mounting relationship between a node and a connection member.

[Explanation of symbols]

 3 Truss joint 5 Node 6 Portion material 11 Circular base plate 12 Holding plate 13 Guide rail 14 Plane angle adjusting base 15 Guide rail 16 Position adjusting base 17 Swing mechanism 18 Side angle adjusting base 19 Roller device 20 Guide roller 21 Guide roller 22 Fixed piece 23 Screw rod 24 Scale 25 Scale 26 Guide 27 Toggle clamp 28 Lever 29 Push piece 30 Guide post 31 Lifting screw shaft 32 Wheel screw 33 Inner peripheral screw part 34 Handle shaft 35 Worm 36 Outer peripheral screw 37 Handle

Claims (1)

[Claims] 1. An assembling apparatus for assembling a truss material joining portion in which a plurality of joint members are arranged in the circumferential direction of a node, the base including a holding portion for fixing and holding the node at a central portion, A plane angle adjusting table provided on an outer peripheral portion of the holding part of the base and capable of positioning and moving in a circumferential direction around the holding part; An apparatus for assembling a truss material joint, comprising: a movable position adjusting table; and a side surface angle adjusting table provided on the position adjusting table for swingably mounting the joint member.