JPH07185966A - Assembling method of frame body and its device - Google Patents

Abstract

PURPOSE:To carry out assembling work easily and in a short period of time without a worker moving extensively and without plural workers doing joint work. CONSTITUTION:A first frame material Wa1 is positioned and arranged at a specified position from the inside of a working space 21 surrounded by jigs 17-20 by using the four jigs 17, 18, 19, 20 regulating four corner parts of a frame body W. A second frame material Wb1 is connected to one end of the first frame material Wa1 and positioned and arranged at a specified position extending in a direction orthogonal to the first frame material Wa1. Next, a third frame material Wb2 is connected to the other end of the first frame material Wa1 and positioned and arranged at a specified position extending in a direction orthogonal with the first frame material Wa1. Then, a fourth frame material Wa2 is connected between end parts of the second and third frame materials Wb2, Wb2 from the outside of the working space 21, and after it is positioned and arranged at a specified position extending in a parallel with the first frame material Wa1, a connecting part of each of the frame materials is screw-fixed and fixed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame body assembling method and apparatus used for assembling frame bodies such as aluminum sash frames and shoji frames.

[0002]

2. Description of the Related Art Conventionally, when assembling a frame body such as a rectangular frame-shaped aluminum sash frame or shoji frame from four frame members made of aluminum or the like, an assembly method as shown in FIG. 5 has been adopted. . That is, the operator OP manually operates the work table 5
The four frame members 52, 53, 54, 55 are carried in order on the upper surface of 1 and their opposite ends are joined to each other to be assembled into a rectangular frame shape. After that, a tool 56 such as an impact wrench is used to fix the joints of the frame members 52 to 55 with screws.

[0003]

However, in this conventional frame assembly method, the operator OP uses the work table 5
Four frame members 52, 53, 54, 55 are assembled in a rectangular frame shape from the outside of 1. Therefore, in FIG.
As shown by the solid line and the chain line, the worker OP needs to perform the assembling work while moving around the work table 51, which is very troublesome and time consuming. In particular, when assembling a large frame, if the number of the worker OP is one, the moving distance of the worker OP becomes long, and the work ability is significantly reduced. For this reason, in such a case, a collaborative work by a plurality of (usually two) workers is normal, and manpower is required. In any case, the conventional assembling method has a problem in workability and labor saving, and it is impossible to improve work efficiency.

The present invention has been made by paying attention to the problems existing in such conventional techniques. It is an object of the present invention to provide a frame assembly method and an apparatus thereof that can perform an assembly work easily and in a short time and improve work efficiency.

[0005]

In order to achieve the above object, in the invention according to claim 1, in a frame body assembling method for assembling a square frame-like frame body in a horizontal plane by four frame members, Using four jigs that regulate the four corners of the body, from the inside of the work space surrounded by those jigs,
First, the first frame member is positioned and arranged at a predetermined position, then the second frame member is joined to one end of the first frame member, and then the first frame member or the second frame member is joined.
A third frame member is joined to the other end of the frame member to position and position the three frame members in a U-shape, and then a fourth frame member is joined to the open end from the outside of the working space to form four frame members. The gist of the invention is to position the frame members in a square shape and then screw the joints of the frame members together.

In a second aspect of the present invention, in a frame body assembling apparatus for assembling a rectangular frame body in a horizontal plane by four frame members, a fixing jig for regulating the first corner of the frame body, A first movable jig that is attached to a movable frame that can move toward and away from the fixed jig in one direction, and that regulates the second corner of the frame body; A moving direction of the second movable jig with respect to the first movable jig in the second movable jig and the movable frame that can move toward and away from the moving direction in a direction orthogonal to the third corner of the frame body. And a third movable jig that is provided so as to be movable toward and away from the frame in the same direction as that of the third movable jig that restricts the fourth corner portion of the frame body, and the first to the third jigs so that each jig is located at each corner of the quadrangle.
And a driving means for moving the movable jig, and a working space in which a worker can enter and exit is formed in a portion surrounded by the jigs, and an entrance side to the working space is open. Is the gist.

According to a third aspect of the present invention, in the second aspect of the invention, the fixed jig and each movable jig are provided with a reference piece and a clamp device for positioning and clamping from inside and outside of the frame body, respectively. That is the summary.

[0008]

[Operation] When assembling the frame by the method for assembling the frame according to claim 1, four jigs that restrict four corners of the frame are used, and a work space surrounded by those jigs. First, the first frame member is positioned and arranged at a predetermined position from the inside. Next, the second frame member is joined to one end of the first frame member, the third frame member is joined to the other end of the first frame member or the second frame member, and the three frame members are U-shaped. To position and arrange. Next, a fourth frame member is joined to the open end from the outside of the work space, four frame members are positioned and arranged in a square shape, and then the joint portion of each frame member is screwed to form a frame body. Can be assembled.

As described above, the worker is located inside the work space surrounded by the four jigs, and most of the work of assembling the frame member can be performed from the work space side. Therefore, it is possible for an operator to easily and quickly perform the work of assembling the frame without having to move around the frame largely or to collaborate with a plurality of workers. The efficiency can be improved.

In the frame assembly device according to the second aspect, among the four jigs for restricting the four corners of the frame, three jigs are movable jigs and one fixed jig. With reference to, the frame can be moved in the vertical frame material direction and the horizontal frame material direction. For this reason, even when assembling frame bodies having different dimensions, the movable jig is moved to a predetermined corner regulation position according to the dimension of the frame body to accurately regulate the four corners of the frame body, You can perform body assembly work.

Further, in the frame body assembling apparatus according to the third aspect, positioning can be performed from the inside and the outside of the frame body by the clamping jig and the reference pieces of the movable jigs and the clamp device. Therefore, the four frame members can be accurately positioned and held in a square frame-shaped assembled state, and when the joint portions of the frame members are subsequently screwed and fixed, the frame members are not displaced. It is possible to prevent the possibility of occurrence.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a frame body assembling method and apparatus embodying the present invention will now be described in detail with reference to FIGS. 1 and 2.

As shown in FIG. 2, in the frame body assembling apparatus of this embodiment, a fixed base 1 is arranged at a predetermined height on the floor surface of a factory or the like, and a fixed support base 2 is provided on the upper surface at one end thereof. Is fixedly placed. The first guide rail 3 extends parallel to the direction perpendicular to the fixed base 1. Auxiliary first guide rail 3
a extends parallel to the first guide rail 3. The movable base 4 positioned at the same height as the fixed base 1 is movably supported on the first guide rail 3 and the auxiliary guide rail 3a,
The first movable support base 5 is fixedly arranged on the upper surface of one end thereof. The first ball screw 6 is extendedly arranged in parallel with the first guide rail 3, and the first ball screw 6 is the first ball screw 6.
When rotated by the motor 7, the movable base 4 is moved in a direction in which the movable base 4 comes in contact with and separates from the fixed base 1.

A pair of second guide rails 8 are laid on the upper surface of the fixed base 1 so as to extend parallel to the direction orthogonal to the first guide rails 3, and the second movable rails are movable on the second guide rails 8. The support base 9 is movably supported. Second
The ball screw 10 is extendedly arranged in parallel with the second guide rail 8, and when the second ball screw 10 is rotated by the second motor 11, the second movable support base 9 moves in a direction in which the second movable support base 9 comes in contact with and separates from the fixed support base 2. Be moved.

A pair of third guide rails 12 are laid on the upper surface of the movable base 4 so as to extend parallel to the direction orthogonal to the first guide rails 3.
A third movable support base 13 is movably supported on the top. The third ball screw 14 is the third guide rail 12
This third ball screw 14 is extended and arranged in parallel with
Is rotated by the third motor 15, the third movable support base 13 is moved in a direction in which the third movable support base 13 comes in contact with and separates from the first movable support base 5.

As shown by the chain line in FIG. 2, two vertical frame members are provided on the fixed support base 2, the first movable support base 5, the second movable support base 9 and the third movable support base 13. Wa1, Wa
Two and two horizontal frame members Wb1 and Wb2 are placed and assembled in a square frame shape, and a frame body W such as a sash frame or a shoji frame is assembled. Further, when the dimensions of the frame body W to be assembled are changed, the fixed support base 2 is used as a reference for the first
~ Drives 7, 11 and 15 of the third motor move the first to third movable support bases 5, 9 and 13 in the vertical frame direction and the horizontal frame direction, so that the fixed support base 2 and the movable support bases 5 and 9, 13 is located at the corner of the square. Therefore, the fixed support base 2 and the movable support bases 5, 9 and 13 are connected to the four corners C1, C2 of the frame W.
It is arranged at a position where C3 and C4 can be supported. The first
Drive of the third motor 7, 11, 15 is controlled by a controller (not shown), and the controller and the drives 7, 11, 15 of the first, second and third motors constitute a drive means.

Next, the structure on the support bases 2, 5, 9 and 13 will be described in detail. The stopper 1 as a reference piece.
6 is erected on the upper surface of the fixed support base 2, and the stopper 16
Is engaged with the end portion of the vertical frame member Wa1, so that the reference position at the start of assembly of the frame body W is regulated. Fixing jig 17
Is erected on the upper surface of the fixed support base 2, and when the fixing jig 17 engages with the inner side surface of the first corner C1 of the frame W,
The first corner C1 is restricted to a predetermined position.

The first movable jig 18 is the first movable support base 5.
This first movable jig 1 is installed on the upper surface of the
By engaging 8 with the inner side surface of the second corner C2 of the frame W, the second corner C2 is restricted to a predetermined position. The second movable jig 19 is erected on the upper surface of the second movable support base 9 so as to be movable integrally, and the second movable jig 19 is the third corner C of the frame W.
The third corner C3 is restricted to a predetermined position by engaging with the inner side surface of 3. The third movable jig 20 is erected on the upper surface of the third movable support base 13 so as to be integrally movable, and by engaging the third movable jig 20 with the inner surface of the fourth corner C4 of the frame W, , Its fourth corner C4 is restricted to a predetermined position.

The work space 21 is composed of the jigs 17 and 1 described above.
The work OP is formed in a portion surrounded by 8, 19, and 20 so that the worker OP can enter and leave the working space 21 from the open end side of the fixed base 1 and the movable base 4. Then, the operator OP assembles the vertical frame member Wa1 as the first frame member, the horizontal frame member Wb1 as the second frame member, and the horizontal frame member Wb2 as the third frame member from the inside of the work space 21. After that, the vertical frame member Wa2 as the fourth frame member is assembled from the outside of the work space 21.

A pair of first clamp devices 22 are mounted on the upper surfaces of the fixed support base 2 and the first movable support base 5 so as to face the fixed jig 17 and the first movable jig 18, and the fixed jig is provided. The vertical frame member Wa1 of the frame body W is clamped in cooperation with the first movable jig 18 and the first movable jig 18. A pair of second clamp devices 23
Is mounted on the upper surfaces of the fixed support base 2 and the second movable support base 9 so as to face the fixed jig 17 and the second movable jig 19, and cooperates with the fixed jig 17 and the second movable jig 19. Then, the horizontal frame member Wb1 of the frame body W is clamped. The pair of third clamp devices 24 includes the first movable jig 18 and the third movable jig 2.
0 is provided on the upper surfaces of the first movable support base 5 and the third movable support base 13, and the first movable jig 18 and the third movable support base 13 are installed.
The horizontal frame member Wb2 of the frame body W is clamped in cooperation with the movable jig 20.

A pair of fourth clamp devices 25 are mounted on the upper surfaces of the second movable support base 9 and the third movable support base 13 so as to face the second movable jig 19 and the third movable jig 20, respectively.
The vertical frame member Wa2 of the frame body W is clamped in cooperation with the second movable jig 19 and the third movable jig 20. Each of the clamp devices 22, 23, 24, 25 has an air cylinder 2
6 and a clamp plate 27 fixed to the tip of the piston rod. And the air cylinder 2
When 6 is operated to project, the clamp plate 27 is moved toward the opposing jigs 17 to 20 side, and the frame material Wa of the frame body W is provided between the clamp plate 27 and the jigs 17 to 20.
1, Wa2, Wb1 and Wb2 are clamped.

The mounting machine frame 28 is located above the open ends of the fixed base 1 and the movable base 4 and is located on the first guide rail 3 side.
It is arranged on the floor surface of a factory or the like so as to extend in parallel with. The support arm 29 is movably supported by the mounting machine frame 28 and extends toward the fixed base 1 side. The pair of screw tighteners 30 are movably and vertically supported by the support arm 29, and the screw clamps 30 allow the frame members Wa1, Wa2, Wb to come from outside the four corners C1 to C4 of the frame W.
The joint portion of 1 and Wb2 is fixed by screwing.

The carry-out conveyor 31 is laid on the floor surface of a factory or the like so as to be adjacent to one ends of the fixed base 1 and the movable base 4 on the side opposite to the mounting machine frame 28. Then, after the assembling work of the frame W on the fixed support base 2 and the first to third movable support bases 3, 5, 9 is completed, the frame W is carried out from the assembly position by the carry-out conveyor 31.

Next, an assembling method for assembling the frame W with the frame assembling apparatus configured as described above will be described. When assembling this frame W, first of all,
The distance between the jigs 17, 18, 19, and 20 is adjusted according to the dimension. That is, when the first motor 7 is rotated, the movable base 4 is moved in the vertical frame member direction via the first ball screw 6. In addition, the second and third motors 11,
When 15 is rotated, the second and third ball screws 1
The second and third movable support bases 9 and 13 are moved in the direction of the horizontal frame member via 0 and 14. As a result, each support base 2, 5,
9 and 13 are arranged at a predetermined interval, and each jig 17-2
0 is arranged at a predetermined position where the four corners C1, C2, C3, C4 of the frame material W can be regulated. Along with this, each jig 17-
A work space 21 in which a worker OP can enter and exit is formed in a portion surrounded by 20.

In this state, the worker OP operates in the work space 2
In step 1, the assembling work of the frame W is started. That is, as shown in FIG. 1A, the vertical frame member Wa1 as the first frame member is first placed on the fixed support base 2 and the first movable support base 5 from the inside of the work space 21. And
By engaging the end portion of the vertical frame member Wa1 with the stopper 16, the reference position at the time of starting the assembly of the frame body W is regulated. At the same time, the inner surface of the vertical frame member Wa1 is engaged with the fixing jig 17 and the first movable jig 18, so that the vertical frame member Wa1 is positioned at a predetermined position. In this state,
The vertical frame member Wa1 is immovably clamped by the first clamp device 22.

Next, as shown in FIG. 1B, a horizontal frame member Wb1 as a second frame member is placed on the fixed support base 2 and the second movable support base 9 from the inside of the work space 21. It Then, the end portion of the horizontal frame member Wb1 is joined to one end of the vertical frame member Wa1 to regulate the end position of the horizontal frame member Wb1. At the same time, the inner surface of the horizontal frame member Wb1 is engaged with the fixing jig 17 and the second movable jig 19,
The horizontal frame member Wb1 is positioned at a predetermined position. In this state, the horizontal frame member Wb1 is immovably clamped by the second clamp device 23.

Further, as shown in FIG. 1C, from the inside of the work space 21, a horizontal frame member Wb2 as a third frame member is provided.
Are placed on the first movable support base 5 and the third movable support base 13. The end of the horizontal frame member Wb2 has a vertical frame member Wa1.
By being joined to the other end of the horizontal frame member Wb2, the end position of the horizontal frame member Wb2 is restricted. At the same time, the inner surface of the horizontal frame member Wb2 is engaged with the first movable jig 18 and the third movable jig 20 to position the horizontal frame member Wb2 at a predetermined position. In this state, the horizontal frame member W is moved by the third clamp device 24.
b2 is clamped immovably. The horizontal frame material Wb
Either of the assembling order of 1 and Wb2 may be first.

Thereafter, the worker OP comes out of the work space 21, and as shown in FIG. 1 (d), the vertical frame member Wa2 as the fourth frame member is secondly provided from the outside of the work space 21.
It is placed on the movable support base 9 and the third movable support base 13.
And both ends of this vertical frame material Wa2 are horizontal frame materials Wb1 and Wb.
The vertical frame member Wa2 is positioned at a predetermined position by being joined to the two end portions. In this state, the vertical frame member Wa2 is immovably clamped by the fourth clamp device 25.

Thus, the four frame members Wa1, Wa2,
After the assembly of the frame W by Wb1 and Wb2 is completed,
The joint portions of the frame members Wa1, Wa2, Wb1, Wb2 are fixed by screws. That is, the support arm 29 is moved along the attachment machine frame 28 by a drive device (not shown), and both screw tighteners 30 are moved in the extension direction and the up-and-down direction of the support arm 29, and the screw tighteners 30 are moved.
Are arranged to face the joints of the frame members Wa1, Wa2, Wb1 and Wb2. In this state, the joint portions of the frame members Wa1, Wa2, Wb1, Wb2 are fixed by screws with the screw tightener 30.

After completion of the work of assembling the frame W, the first to fourth clamp devices 22 to 25 are actuated to the release position, and the frame members Wa1, Wa2, Wb1 and W of the frame W are respectively moved.
b is released from the clamped state. After that, the frame body W is lifted from the assembly position on the support bases 2, 5, 9 and 13,
It is carried out by the carry-out conveyor 31.

As described above, in the frame assembly method and apparatus according to this embodiment, the operator OP uses the four jigs 17 to 17.
Located in a working space 21 surrounded by 20,
From the inside of the work space 21, the frame members Wa1, Wb
The work of assembling 1 and Wb2 can be performed. Therefore, it is not necessary for the worker OP to move around the frame body W or to perform a joint work by a plurality of workers when the work body OP is assembled with the frame body W, and the work can be performed easily and in a short time. It is possible to improve work efficiency.

Further, in the frame assembly device of this embodiment, the four jigs 1 for restricting the four corners C1 to C4 of the frame W are provided.
Among the 7 to 20, three jigs are composed of movable jigs 18 to 20 so that the jig W can be moved in the vertical frame member direction and the horizontal frame member direction with reference to one fixed jig 17. Has become. Therefore, even when assembling the frame bodies W having different sizes, the movable jigs 18 to 20 are moved and arranged at the predetermined corner regulating positions according to the frame dimensions, whereby the four corners C1 to C4 of the frame body W are arranged. Can be accurately regulated and the work of assembling the frame W can be performed.

Further, in the frame assembly apparatus of this embodiment, the fixing jig 17 and the movable jigs 18 to 20 are used to
With the frame members Wa1, Wa2, Wb1 and Wb2 assembled in a rectangular frame shape, each of the frame members Wa1, Wa2, Wb1 and Wb2 can be clamped by the clamp devices 22 to 25. Therefore, the four frame members Wa1 and Wa
2, Wb1 and Wb2 can be accurately positioned and held in a square frame-shaped assembled state, and then each frame member Wa
It is possible to prevent the frame members from being displaced when the joint portions of 1, Wa2, Wb1, and Wb2 are fixed by screws.

[0034]

Another Embodiment Next, another embodiment of the present invention will be described with reference to FIGS. First, in the embodiment shown in FIG. 3, the dovetail portion 41 is formed on the restriction surface of the fixing jig 17. By engaging the dovetail groove 43 of the spacer 42 with the dovetail portion 41, the spacer 42 having an arbitrary plate thickness can be detachably attached to the regulation surface of the fixing jig 17. Also, the first corresponding to the fixing jig 17
The dovetail portion 44 is also formed on the clamp surface of the clamp plate 27 of the second clamp device 22, 23. By engaging the dovetail groove 46 of the spacer 45 with the dovetail portion 44, the spacer 45 having an arbitrary plate thickness can be detachably attached to the clamp surface of the clamp plate 27.

Further, although not shown, the dovetail portion 41 similar to the above is formed on the restriction surfaces of the first to third movable jigs 18 to 20, and the restriction surfaces of these movable jigs 18 to 20 are arbitrarily formed. The spacer 42 having a plate thickness can be detachably attached. Moreover, other clamp devices 22 to 2 not shown
A dovetail portion 44 similar to the above is also formed on the clamp surface of the clamp plate 27 in No. 5, and the spacers 45 having an arbitrary plate thickness can be detachably attached to the clamp surfaces of these clamp plates 27. Also, the spacers 42, 4
Denoted at 5 is a concave portion that fits the protrusions if the frame members Wa1, Wa2, Wb1, Wb2 have protrusions depending on the surface shapes of the frame members Wa1, Wa2, Wb1, Wb2. The frame members Wa1, Wa2, Wb1, and Wb2 are in contact with the surfaces of the frame members Wa1, Wa2, Wb1, and Wb2 for reliable positioning.

In the frame assembly apparatus of this embodiment, when the thicknesses of the frame members Wa1, Wa2, Wb1 and Wb2 are changed, the jigs 17 to 20 side and the clamp device 22 to.
Spacers 42 and 45 having a predetermined plate thickness are attached to either or both of the clamp plate 27 and the clamp plate 27 side. Thereby, even when the thicknesses of the frame members Wa1, Wa2, Wb1, Wb2 are changed, the clamp devices 22 to 25 can be constantly maintained in a constant clamped state.

Next, in the embodiment shown in FIG. 4, the fixed jig 17 and the movable jigs 18 to 20 are the frame members Wa1 and W1.
It is arranged so as to engage with the outer side surfaces of a2, Wb1, and Wb2. In addition, the first to third clamp devices 22 to 24
However, the frame members Wa1, Wb1, Wb2 are configured to be clamped from the inner side. With such a configuration, the fixing jig 17 can regulate the reference position at the start of the assembling of the frame body W, so that the stopper 16 in the above embodiment can be omitted.

The present invention is not limited to the configuration of each of the above-described embodiments. For example, a loading device for loading the frame members Wa1, Wa2, Wb1 and Wb2 is attached to the assembly position of the frame body W. Within the scope of the present invention,
It is also possible to embody the configuration of each unit by arbitrarily changing it.

[0039]

Since the present invention is configured as described above, it has the following excellent effects.

According to the frame assembly method of the first aspect and the invention of the frame assembly apparatus of the second aspect, when the frame is assembled, the operator moves a lot around the frame,
It is not necessary to perform joint work by a plurality of workers, and the assembling work can be performed from the inside of the frame.
Therefore, the assembling work can be performed easily and in a short time, and the work efficiency can be significantly improved.

Further, according to the invention of the frame body assembling apparatus described in claim 2, even when assembling frame bodies having different sizes, the movable jig is moved to a predetermined corner regulating position according to the frame body dimensions. By arranging, the four corners of the frame can be accurately regulated, and the frame can be assembled.

Further, according to the invention of the frame body assembling apparatus described in claim 3, when assembling the frame body, each frame member can be clamped in a square frame-like assembled state by the clamp device. Therefore, after assembling the frame body, it is possible to reliably prevent the frame material from being displaced when the joint portions of the frame materials are screwed and fixed.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of a frame body assembling method embodying the invention described in claim 1, and showing the assembling steps in order.

FIG. 2 is a plan view showing an embodiment of a frame assembly device embodying the invention described in claims 2 and 3. FIG.

FIG. 3 is a partial perspective view showing another embodiment of the frame assembly device of the present invention.

FIG. 4 is a schematic cross-sectional view showing still another embodiment of the frame assembly device of the present invention.

FIG. 5 is a plan view for explaining a conventional frame assembly method.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Fixed base, 2 ... Fixed support, 4 ... Movable base, 5 ... 1st movable support, 9 ... 2nd movable support, 13 ... 3rd movable support, 16 ... Stopper, 17 ... Fixed cure Tool, 18 ... 1st movable jig, 19 ... 2nd movable jig, 20 ... 3rd movable jig, 2
DESCRIPTION OF SYMBOLS 1 ... Work space, 22 ... 1st clamp apparatus, 23 ... 2nd clamp apparatus, 24 ... 3rd clamp apparatus, 25 ... 4th
Clamping device, Wa1 ... Vertical frame member as first frame member, Wa
2 ... Vertical frame material as fourth frame material, Wb1 ... Horizontal frame material as second frame material, Wb2 ... Horizontal frame material as third frame material, W ... Frame body, C1 ... First corner portion, C2 ... 2nd corner, C3 ... 3rd corner, C4 ... 4th corner, OP ... Worker.

Claims (3)

[Claims] 1. A method for assembling a quadrangular frame body in a horizontal plane by four frame materials, wherein four jigs for controlling four corners of the frame body are used and surrounded by those jigs. First, the first frame member is positioned and arranged at a predetermined position from the inside of the working space, and then the second frame member is joined to one end of the first frame member. The third frame member is joined to the end to position and arrange the three frame members in a U shape, and then the fourth frame member is joined to the open end from the outside of the working space to form four frame members in a square shape. A method of assembling a frame body, which comprises positioning and arranging in a shape, and then screwing a joint portion of each frame material. 2. In a frame body assembly apparatus for assembling a rectangular frame body in a horizontal plane by four frame members, a fixing jig for regulating a first corner of the frame body, and one fixing jig. A first movable jig that is attached to a movable frame that can move in and out of the first direction, and that regulates the second corner of the frame body, and the fixed jig that is in contact with the moving direction of the first movable jig and the orthogonal direction. The second movable jig and the moving frame, which can be separated and moved, and which regulates the third corner of the frame body, move toward and away from the first movable jig in the same direction as the moving direction of the second movable jig. A third movable jig that is provided so as to regulate the fourth corner of the frame body, and the first to the first jigs so that the jigs are located at the corners of the quadrangle.
A driving means for moving the third movable jig is provided, and a working space in which a worker can enter and exit is formed in a portion surrounded by the jigs, and an entrance side to the working space is open. A frame assembly device characterized by being present. 3. The frame assembly apparatus according to claim 2, wherein the fixing jig and each movable jig are provided with a reference piece for positioning and clamping from inside and outside of the frame, respectively. .