JPS647031Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an assembly and welding device that is equipped with a temporary assembly device, a transfer device, and a welding device and can improve the production efficiency of frames formed by combining and joining frame materials. An embodiment will be described based on the drawings.

The figure illustrates a case where the assembly welding apparatus 1 of the present invention is used to form a framework 2 of construction panels used as walls, floors, etc. in a prefabricated building, for example. As illustrated in FIG. 3, both are made of channel steel, and the horizontal frame members 4 and 5 are placed between the vertical frame members 3 and 3, which are arranged with the grooves facing inward, and the grooves are arranged at both ends. are placed facing inward, and 2 partitions between the vertical frame members 3, 3.
The frame members 9, 9 on the side that cross the vertical frame member 3 and the inner frame member 6 and the inner frame member 6 , 6 are provided, including vertical frame members 3, inner frame members 6, side frame members 9, and opening frame members 1.
0 and 11 have narrow parts at both ends and horizontal frame members 4,
After forming a temporary framework 13 temporarily assembled by male and female fitting inserted into the grooves of the frame members 6 and 6,
The joint 14 is welded to complete the framework 2, and the apparatus 1 of the present invention is used for forming the framework 2. A U-shaped piece 12 is welded to the outer surface of the frame material 6, and one end of the frame material 9 on the side is fitted into the U-shaped piece 12, and a lip 15 facing outward is attached to the horizontal frame material 5. A vertical frame member 3, horizontal frame members 4 and 5, and an inner frame member 6 that protrude and form a cross-shaped body.
In this case, the position of the architectural panel of one standard size is constant, while the mounting position of the side frame material 9 and the opening frame materials 11 and 12 is variable depending on the type.

The assembly and welding device 1 includes a temporary assembly device 20, a transfer device 40, and a welding device 60 in which a welding tool 62 is attached to a welding table 61 in parallel. The temporary assembly device 20 includes a frame 22 that moves on rails 21 extending toward the transfer device 40 to the original position A of the transfer device 40.
A positioning tool 23 and side abutting tools 25 and 26 are provided on the holder. The positioning tools 23 are arranged at both end positions of the frame members 3, 4, 5, and 6 at certain positions among the frame members 3 to 11 for forming the framework, and the side support tools 25 and 26 Depending on the type of opening, the frame member 9 is attached to both ends of the frame member 9 on the side whose position is variable, and the frame members 10 and 11 for opening.

As illustrated in FIG. 4, the positioning tool 23 has two pins 27, 27 erected on the rotating arm 29 with an interval equal to or larger than the width of the frame members 3 to 6. The rotating arm 29 has a support shaft 2 installed below at its center.
9a is vertically pivoted on a bearing stand 30 fixed to the frame 22, while a lever 29b is protruded from the support shaft 29a, and a rod of a cylinder 31 is pivoted to the tip of the lever 29b. The cylinder 31 has a support piece 31 at its rear end.
By attaching it to the frame 22 through the a, the rotating arm 29 and hence the pin 27 can be rotated via the lever 29b as it expands and contracts, and the frame members 3 to 6 inserted between the pins 27 and 27 are the center of rotation. can be positioned and grasped. The pin 27 can have various shapes as long as it can hold the frame members 3 to 6 therebetween, such as a bent piece formed by bending both ends of the rotating arm 29.
can also be driven using a rotating machine such as a rotary actuator.

The side abutting tools 25 and 26 are provided with a plurality of abutment pins 3 on a base frame 32, as shown in FIG.
3 are arranged side by side at intervals corresponding to the variable positions of the frame members 9, 10, 11. The base frame 32 is attached to the frame 22 by means of leg pieces 32b provided on both sides of a relatively long horizontal piece 32a located at a lower position than the upper surface of the rotating arm 29, and a stopper pin 33 is attached to the lower surface of the horizontal piece 32a. It is inserted into the attached cylinder 34. The cylinder 34 consists of a two-split cylindrical body, and a stopper pin 33 is installed inside the cylinder.
Air chamber 34 in which a piston 35 attached to the lower end slides
a, and by inserting a spring 34b between the piston 35 and the upper end of the air chamber 34a,
While urging the pin 33 downward, the air chamber 34a
By introducing high pressure air from the hose 34d connected to the guide hole 34c on the lower surface, the piston 35,
Therefore, the stopper pin 33 can protrude from the upper surface of the horizontal piece 32a, and the protruding portion of the pin 33 can be brought into contact with one side of the frame members 9, 10, 11 and positioned accordingly. Also, the hose 34d has a stopper pin 3 to be used.
3, high pressure air can be selected and introduced, and therefore only the necessary abutment pins 33 can be operated. In order to position the frame members 10 and 11 together, the side support member 25 has a base frame 32 that is elongated and extends on the inner surfaces of the frame members 6, 6 and parallel to the frame members 6, and extends at both ends thereof. While the abutting pins 33 are provided, the base frames 32 of the side abutting tools 26, 26 are set to have a length that slightly exceeds the variable length range of the side frame members 9.

Therefore, the temporary assembly device 20 includes a positioning tool 23 in which pins 27, 27 are arranged perpendicularly to the longitudinal axes of the frame members 3 to 6.
Insert both ends of the frame members 3 to 6, respectively. In addition, the frame member 6,
The opening frame members 10 and 11 are positioned by sliding and moving the grooves of 6, and one end is inserted into the groove of the vertical frame member 3 by the protruding abutment pin 33 of the side abutment tool 26. Connect the end to the U-shaped piece 12
The frame member 9 supported by the frame member 9 can be positioned, and the rotating arm 29 of the positioning tool 23 can be rotated to grip the frame members 3 to 6. Both ends of a chain 35a that winds a chain wheel 35 that is pivotally supported at both central ends of the rail 21 are fixed to the frame 22 of the temporary assembly device 20, and as the chain wheel 35 rotates, the transfer device 40 is moved as described above. can be moved to its original position A.

As illustrated in FIG.
A lifting tool 39 consisting of a lifting frame 43 and a lifting frame 43 is attached. The running frame 41 has vertical frame members 41b spanning the upper portions of both ends of the side frame members 41a, and the side frame members 41a run on rails 49 that are continuously laid toward the welding table 61. You can move back and forth between the two. The height of the side frame members 41a is relatively large, while the vertical frame members 41b are formed to have a small thickness, so that the vertical frame members 41a are formed in front and rear thereof.
An inlet portion 41c that opens below b is formed. The lifting frame 43 has an L-shape consisting of a vertical piece 43a and a horizontal piece 43b extending inward at its upper end, and the lifting frame 43 has a cylinder 44 vertically fixed to the side frame member 41a. By fixing a projecting piece 45 formed on the back surface of the vertical piece 43a to the rod, the lifting frame 43 can be raised and lowered as the cylinder 44 expands and contracts. The length between the vertical pieces 43a, 43a is set to be larger than the width of the temporary frame assembly 20, so that the temporary frame assembly 20 enters the original position A from the entrance portion 41c and enters the traveling frame 41. It can be located.

The locking arm 42 of the lifting tool 39 is pivoted on a support shaft horizontally installed at the lower end of a bearing piece 46 opposite to the vertical piece 43a, and has a hook bent downward into an L-shape at the tip of its base 42a. By connecting the base portion 42a to a rod of a cylinder 47 that is tiltably supported between the bearing pieces 46, the hook portion 42 is formed by the extension of the cylinder 47.
b rotates outward and the pull-down frame 43 is in the lowered position, and its hook portion 42b can be inserted and locked into the grooves of the horizontal frame members 4 and 5 of the temporary assembly device 20 that has entered. As the lifting frame 43 rises due to the extension of the cylinder 44, the temporary framework 13 consisting of the frame members 3, 4, 5, 6, 9, 10, and 11 temporarily assembled on the temporary assembly device 20 is pulled up. In addition, when pulling up, the positioning tool 23 reverses its pin 27 to open the frame members 3, 4, 5, and the traveling frame 41
is placed on the rail 49 extending to the welding table 61,
and a chain wheel 50 pivotally supported at the upper and lower ends of the rail 49.
By fixing both ends of the chain 50a wound around the chain 50a, it can reciprocate between the original position A and the welding table 61 as the chain wheel 50 rotates.

In this way, the transfer device 40 is constructed by moving the side frame members 41 of the traveling frame 41 as shown in FIG. 7 with the center omitted.
A lifting frame 43 is attached to the rod end of the cylinder 44 fixed to the inner surface of the cylinder 44, and the upper end of the lifting frame 43 is attached to the rod end of the cylinder 44.
In the lowered state, the frame material 4 on the temporary assembly device 20,
5 can be locked by the extension of the cylinder 47, and the frame members 4, 5 and thus the temporary frame 13 can be pulled up by raising the lifting frame 43. As shown by the dashed line in FIG. 7, the inner surface of the lifting frame 43 has frame members 4 and
By lightly pressing the back surface of the frame 4 inward, the temporary frame 13 can be formed to prevent it from disassembling during lifting or transportation.
3 is placed close to the frame members 4, 5 in advance, the lifting frame 43 can be configured to be able to hold the frame members 4, 5 between it and the hook portion 42b.

The welding table 61 of the welding device 60 includes a positioning gripping tool 63, a positioning tool 64, and a positioning tool 6.
5 and the lifting frame 43 of the transfer device 40,
The transfer device 40 is arranged on the upper surface of a stationary workbench 66 whose width is narrower than that of the lifting tool 39.
When the temporary framework 13 is pulled up, the temporary framework 13 is moved to the welding table 61.
3 is located above the positioning gripping tool 63, the positioning tool 64, and the positioning tool 69. As shown in FIG. 8, the positioning grip 63 includes pins 27 erected on the rotating arm 29 at intervals equal to or larger than the widths of the frame members 3, 4, 5, and 6. The positioning tool 23 whose rotating arm 29 is rotatable by the expansion and contraction of the cylinder 31, and the guiding tool 69 disposed near the positioning tool 23 and along the frame members 3, 4, 5, and 6.
The guiding tool 69 has a receiving part 71 at the upper end of the lifting shaft 70 which is prevented from rotating.
consists of a bottom piece 73 whose width is slightly narrower than the gap between the pins 27, and two guide pieces 74 which are curved outwardly in the shape of a string, for example, and which are erected on both sides of the bottom piece 73, which is slightly narrower than the gap between the pins 27; It is formed in an inverted V shape. In this embodiment, the lifting shaft 70 is an inverted cylinder 76.
The elevating shaft 70 is prevented from rotating by engaging with the housing of the cylinder 76, and as the cylinder 76 expands, the upper surface of the bottom piece 73 rises to a height exceeding the upper end of the pin 27. Further, due to the contraction, the upper surface of the rotating arm 29 sinks downward, and the receiving portion 71 matches the spacing between the pins 27 at the initial position of the rotating arm 29.

The positioning grip 63 is disposed on the workbench 66 and at both ends thereof in accordance with the arrangement of the frame members 3, 4, 5, and 6. In addition, the guiding tool 69 lifts up the receiving part 71 to remove the frame members 3, 4, and 4 of the temporary framework 13, which is lifted up by the lifting tool 39 and located above, of the transfer device 40 that has been moved to the welding table 61.
5 and 6 are guided by the guide piece 74, and the bottom piece 73
Place and hold it. Further, the lifting tool 39 flips up the locking arm 42, releases the temporary framework 13 from the hook portion 42b, and then lowers the receiving portion 71. The bottom piece 73 of the receiving part 71 is formed to be slightly narrower than the distance between the pins 27, so that it can be inserted correctly between the pins 27 of the positioning tool 23, and the center of the bottom piece 73 can be adjusted by rotating the rotating arm 29. is positioned and grasped.

As shown in FIG. 9, the position adjustment tool 64 is a slide plate 79 that can move the two positioning tools 23, 23 back and forth, which has pins 27 implanted at both ends of the upper surface of the rotating arm 29 that can be rotated by a cylinder 31, for example. Attach to. The slide plate 79 is slidably supported on a guide shaft 80 attached to both ends of the opening frame members 10 and 11 perpendicularly to the workbench 66, and the slide plate 79 protrudes from the lower surface thereof. By connecting the mounting piece 81 to the cylinder 83 on the workbench 66, it moves back and forth as the cylinder 83 expands and contracts. A stopper piece 85 is attached to the slide plate 79.
is installed on the side. The corresponding stopper piece 85 has a hanging piece 86 hanging below its tip, and a plurality of adjustment pins 87 that protrude from the workbench 66 and abut against the corresponding stopper piece 85 are arranged in the direction of movement of the slide plate 79. Installed in parallel. The adjustment pin 87 is made of, for example, a rod of a cylinder 89, and the positioning tool 23 is connected to the frame members 10, 1.
They are arranged in advance on the workbench 66 at appropriate intervals so that they can be positioned at one variable mounting position.

Therefore, the position adjustment tool 64 positions the positioning tool 23 by selecting the cylinder 89 and protruding the adjustment pin 87 so that the abutment pieces 85 of the slide plate 79 collide with each other, and the positioning tool 23 is positioned.
can be held in the correct position.

As illustrated in FIG. 10, the positioning tool 65 includes tilting arms 9 that tilt symmetrically to each other and can be freely raised.
2, the positioning tool 65 is a U-shaped piece 1 which is welded to the frame material 6 with its spine 93 horizontally.
It is placed directly under 2. The tilting arm 92 is an L-shaped base 9
It is pivoted on the vertical piece 5 with a gap substantially equal to that of the U-shaped piece 12, and gears 97, 97 are mounted on the pivot support.
to fix. A gear 97 is disposed therebetween and meshes with a rack 99 which has rack teeth on both sides and is movable up and down. The rack 99 is connected to a rod of a cylinder 100 erected on the base 95 and can be raised and lowered.
Moreover, the tilting arms 92 are raised and lowered symmetrically by raising and lowering the tilting arms 92. Note that as long as the tilting arm 92 has a gap approximately equal to that of the U-shaped piece 12 at the contact portion with the U-shaped piece 12 when standing upright, its pivot support can be set to be wide or narrow, and it can be raised using a crank. Various things can be used, such as ones that make you fall.

Therefore, the positioning tool 65 causes the tilting arm 92 to stand upright due to the contraction of the cylinder 100, and correctly positions the frame member 10 on the side that fits into the U-shaped piece 12 in the groove of the U-shaped piece 12.

The welding tool 62 is a horizontal frame 1 attached to a gate-shaped frame 110 installed across the welding table 61 so as to be movable back and forth.
11 so that it can move freely. As shown in FIG. 11, the welding tool 62 elastically supports the support frame 116 below the mounting frame 114 attached to the horizontal frame 111. The support frame 116 has a U-shaped portion 119 at its upper end, and a guide shaft 121 hanging from the mounting frame 114 passes through a protrusion 120 in the U-shaped portion 119, and springs 115 are inserted between the upper and lower portions of the protrusion 120, respectively. By inserting the support frame 116 into the support frame 116, the support frame 116 is supported so that it can pulsate up and down, and the attachment frame 114 and support frame 1
16 is a support frame 116 with a damping device 125 interposed therebetween.
Stops rotation. A support plate 126 provided below the U-shaped portion 119 is fixed with a central electrode 130 having an upper middle chip 130a and a lower middle chip 130b arranged on the upper and lower surfaces, and has an outer upper chip 131 facing the upper middle chip 130a. The center part of the upper electrode piece 132 is
pivoted above and below the central electrode 130;
A lower electrode piece 135 having outer and lower tips 133 facing the middle and lower tips 130b is pivotally supported. Upper electrode piece 13
2 and the lower electrode piece 135 are the links 137 at the rear end.
A cylinder 139 is connected to the rear end of the upper electrode piece 132 and is tiltably attached to the U-shaped portion 119.
By pivoting the rod of the cylinder 1,
39 expands and contracts, the outer upper tip 131 and the outer lower tip 133 become the middle upper tip 130a and the middle lower tip 13.
Alternately approach and move away from 0b. The rear end of the rod of the cylinder 139 protrudes on both sides, and a contact piece 14 is provided on the protrusion.
0 sequentially activated the switches 142 and 143 arranged vertically in parallel at the rear end of the cylinder 139, causing the upper electrode piece 13 to approach the center electrode 132.
2 or the lower electrode piece 135 can be energized.

The damping device 125 is composed of a plunger 145 and a fitting piece 146 that engages with the plunger 145.
A square shaft is used which is erected on a base piece 147 that is attached to the upper side of 19, and a locking part 150 consisting of a triangular groove is recessed in one side of the shaft. The fitting piece 146 has a hole 151 into which the plunger 145 is loosely inserted.
A cam piece 153 that can be fitted into the locking part 150 is attached when the two are spaced apart from each other at the correct distance. The cam piece 153 is urged forward toward the plunger 145 by a spring 156 inserted between the cam piece 153 and an adjustment screw 155 screwed into its back.

As shown in FIG.
9, 10, and 11 are inserted, and by driving the cylinder 139, for example, the outer upper tip 131 at the tip of the upper electrode 132 is lowered, and the middle upper tip 13 is lowered.
The joint 14 is sandwiched between the outer chip 0a and the upper outer chip 131 and energized to spot weld the joint 14. Also, frame materials 3, 4, 5, 6, 9, 10,
11 is warped or deformed upward due to distortion, etc., as the upper electrode piece 132 rotates, the support frame 116 and therefore the center electrode 130 are pushed up, as shown by the dashed line, and the upper electrode piece 132 is rotated. Welding can be performed reliably while preventing excessive force from being applied to the piece 132. Next, the cylinder 139 is extended and the lower joint 14 is similarly welded.

Further, in the damping device 125, when pulsation is generated by the spring 115 along with the vertical movement of the support frame 116, the plunger 145 moves up and down and the cam piece 153 engages with the locking portion 150 while moving back and forth, thereby damping the pulsation. and the locking part 150 when stationary.
By pressing the support frame 116, the support frame 116 can be correctly positioned again, improving the efficiency of welding work.

However, the assembly and welding device of the present invention is based on the temporary assembly device 2.
0 allows the frame materials 3, 4, 5, 6, 9, 10, and 11 to be correctly temporarily assembled at predetermined positions, and by the movement of the temporary assembly device 20, the transfer device 40 lifts the temporary framework 13 and carries it to the welding table 61. , After transferring and gripping, the welding tool 62 efficiently welds the joints 14 to form the framework 2. Furthermore, by keeping the welding table 61 stationary, the gate-shaped frame can be fixed surrounding the welding table 61, and therefore, the gate-shaped frame 1 can be fixed by surrounding the welding table 61.
In addition to increasing the movement range of the welding tool 62 attached to the horizontal frame 11 to which the frame 10 is transferred, the gate-shaped frame 11
Since there is no zero movement, runout can be reduced and durability and positioning accuracy can be improved.

In addition, the transfer device 40 moves between the original position A and the welding table 61 to remove the temporarily assembled temporary framework 13.
The welding table 61 is lifted up by the lifting tool 39.
You can expect it near. Therefore, after removing the welded frame from the welding table 61, the temporary frame 1 can be quickly removed.
3 can be supplied. In addition, the framework position 20 forms the temporary framework 13 by aligning and temporarily assembling the frame members inserted into the positioning tool 23, and moves from the temporary assembling position to the original position A, and waits at the original position A. The transfer device 40 receives the temporary framework 13 by means of the lifting device 39, as described above.

As a result, the temporary assembly device 20 is fixed and the transfer device 4
0 moves between the temporary assembly device and the welding table, there are no rails or the like laid around the temporary assembly device 20 for the movement of the transfer device 40, and the worker can move between the temporary assembly device 20 and the welding table. This will facilitate work such as supplying and adjusting frame materials.

As mentioned above, the assembly and welding equipment of the present invention can automate the process from temporary assembly of frame materials to welding by using a temporary assembly device, a transfer device, and a welding device, improving the production efficiency of frames. It can be suitably adopted for forming frames for construction panels, etc. in houses, and while the welding table is stationary, the transfer device moves between the welding table and the original position, and the temporary assembly device moves to the original position, so that temporary assembly can be carried out. Secure work space during assembly and improve work efficiency.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing one embodiment of an assembly and welding device, Fig. 2 is a front view thereof, Fig. 3 is a perspective view showing an example of a framework, Fig. 4 is a perspective view illustrating a positioning tool, Figure 5 is a perspective view illustrating the side support tool;
The figures are a perspective view illustrating the transfer device, FIG. 7 is a sectional view illustrating its operation, FIG. 8 is a perspective view illustrating the positioning gripping tool, FIG. 9 is a perspective view illustrating the positioning tool, and FIG. 10 11 is a perspective view illustrating a positioning tool, FIG. 11 is a perspective view illustrating a welding tool, FIG. 12 is a line diagram showing its action, and FIG. 13 is a perspective view illustrating a damping part. 2...Framework, 3, 4, 5, 6, 10, 11...
Frame material, 12... U-shaped piece, 13... Temporary framework, 14...
...Joint portion, 20... Temporary assembly device, 22... Frame, 2
3... Positioning tool, 25, 26... Side support tool,
27...Pin, 29...Rotating arm, 32...Attaching pin, 39...Lifting tool, 40...Transfer device, 41
... Traveling frame, 41a ... Side frame material, 42 ... Locking arm, 42b ... Hook portion, 43 ... Pulling frame, 44
... Cylinder, 60 ... Welding device, 61 ... Welding table, 63 ... Positioning grip, 64 ... Position adjustment tool, 65 ... Positioning tool, 66 ... Workbench, 69
...Guiding tool, 70...Elevating shaft, 71...Receptacle, 73...Bottom piece, 76...Cylinder, 79...
Slide plate, 92...Tilt arm, 93...Spine piece, 1
14...Mounting frame, 115...Spring, 116...
Support frame, 125... Attenuator, 130... Center electrode, 130a... Middle upper chip, 130b... Middle lower chip, 131... Outer upper chip, 132... Upper electrode piece, 133... Outer lower chip, 135... Lower electrode piece, 145... Plunger, 146... Fitting piece,
150...Locking portion, 153...Cam piece.

Claims (1)

[Scope of utility model registration request] A welding device having a stationary welding table is provided with a transfer device movable from an original position to the welding table and a temporary assembly device movable to the original position of the transfer device, and the temporary assembly device A positioning tool is provided to form a temporary framework by positioning and temporarily assembling the inserted frame material, and the transfer device lifts the temporary framework of the frame material by the positioning tool of the temporary assembly device that has been moved to the original position. A lifting tool is provided, and a positioning grip that can hold the temporary framework brought into the welding table by the transfer device and pulled up by the lifting tool as it rises and grips it as it descends; An assembly and welding device comprising a welding tool for welding joints of the gripped temporary framework.