JPH03234370A - Tack welding equipment - Google Patents

Abstract

PURPOSE:To tack-weld vertical material to horizontal material at the position with verticality for the horizontal material with high accuracy by driving a portal pedestal in the (y) direction, adjusting and setting the position in the (x) direction of the vertical material and moving first and second arc welding machines in the (y) direction at the necessary position in the (y) direction to perform welding and energizing. CONSTITUTION:The vertical material 125 to be welded is set up on the horizontal material 11 to be welded and a second vertical material supporting body 162 is pressurized by a first pressurizing means 19 for a first vertical material supporting body 161 with this vertical material 125 between. A sphere 1811 of the second vertical material supporting body 162 strikes against the rear of the vertical material 125 to press to the vertical material 125 toward the first vertical material supporting body 161, thereby a sphere 1711 abuts on the surface of the vertical material 125 and pressurize and support the vertical material 125 vertically. The first and second consumable electrode gas shielded arc welding machines 1051 and 1052 are moved in the (y) direction at the necessary position in the (y) direction to perform welding and energizing alternately, by which the vertical material is tack welded to the horizontal material.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an apparatus for tack welding two materials to be welded, for example, a longitudinal material and a panel material, and particularly relates to a device for tack welding between two materials to be welded, such as a longitudinal material and a panel material. This invention relates to a device for tack welding corners by horizontal fillet welding using a consumable electrode type gas-shielded arc welding machine.

[Conventional technology]

In horizontal fillet welding where longitudinal material is welded to panel material,
A fillet copy welding machine is installed on a gate-shaped frame and it is moved in the horizontal direction y.
It is known that the drive is driven by
705, Japanese Patent Publication No. 50-28903, Japanese Patent Publication No. 51-20381, and 1. Special Public Service 1977-12
Publication No. 999).

However, this is the case when actual welding is performed. In the actual welding,
Since the longitudinal material is fixed to the panel material by tack welding or with a special support, it is only necessary to move the welding machine to follow the longitudinal material. However, in tack welding to fix the longitudinal material to the panel material, the longitudinal material must be accurately positioned relative to the panel material.
It needs to be firmly fixed. Conventionally, this type of tack welding was
This is done using the following steps:

(1) Placing the panel material in a predetermined position using a crane, etc. (2) Longitudinal material or rib material (hereinafter simply referred to as longitudinal material)
(3) Support the longitudinal material almost vertically on the panel material using a vertical holding jig. (4) Measure the upright angle of the longitudinal material using a square ruler, etc. While holding the longitudinal material in an accurate vertical position, the corners of the panel material and the longitudinal material are manually welded or CO□ gas (
(or Ar-CO2 gas) weld with a semi-automatic welding machine. (5) Perform multi-point welding in (4) above in a staggered manner alternating the front and back corners of the longitudinal material along the direction in which the longitudinal material extends. do.

[Problem to be solved by the invention]

Since the operator performs the accurate positioning of the longitudinal material in (4) above, the burden on the operator is large and the worker's labor efficiency is low.The positioning accuracy in the horizontal direction (X) and the accuracy of verticality are low. In many cases, the height (z) of the longitudinal material relative to the panel material tends to fluctuate.

The present invention reduces the burden on workers during tack welding, improves their labor efficiency, and also improves the positioning accuracy in the horizontal direction (x) and the accuracy of verticality (perpendicularity), as well as longitudinal alignment with panel materials. The purpose is to also reduce the height (Z) fluctuation of the material.

[Means to solve the problem]

The tack welding device of the present invention has a material to be welded (11, 12s
) that runs in the horizontal direction y (1 to 7); y
Beam (8) extending in the horizontal direction X intersecting the direction; Carriage (9s) supported by the beam (8) and traveling in the
; A plurality of spheres (1711 to 17□
2) Rotatably support. A first vertical member support (161) supported by a carriage (9,); a plurality of spheres (llh t~18□2) that are spaced apart from each other in the y direction and the vertical direction 2 perpendicular thereto but located on the same vertical plane a second vertical member supported by a carriage (95) that rotatably supports the vertical member , and moves back and forth in the X direction with respect to the first vertical member support (161) with the vertical member to be welded (12s) therebetween. Support (
162); The first pressurizing means (19) applies a pressing force in the X direction to the second vertical member support (162); The vertical member to be welded (
A presser roller (20) that rides on the upper surface of the presser roller (20); a second presser roller that applies downward pressing force in two directions to the presser roller (20);
Pressurizing means (21); equipped on the carriage (95);
Between the vertical member to be welded (12s) and the horizontal member to be welded (11) on which it rests.

A first consumable electrode type gas shielded arc welding machine (Lost) that traces and welds the front corner of the vertical member to be welded; and
The carriage (95) is equipped with vertical members to be welded (12
s) and the horizontal member to be welded (11) on which it rests,
A second consumable electrode type gas shielded arc welding machine (10s) that traces and welds the back corner of the vertical material to be welded (12s).
2);

Note that symbols in parentheses indicate corresponding elements of the embodiment shown in the drawings.

[Effect]

The vertical material to be welded (12s) is placed on the horizontal material to be welded (11).
), put this vertical member (12s) in between, and
The second vertical support (1) is connected to the vertical support (161).
62) is pressurized by the first pressurizing means (19),
The sphere of the second vertical member support (162) (18t t~1
822) hits the back side of the vertical member (12s) and the vertical member (12s)
12s) toward the first vertical member support (LSI). As a result, a sphere (18t) is placed on the back surface of the vertical member (125).
t~1822) is a sphere (17t 1~172) on the surface
2) come into contact with each other and support the vertical member (125) under direct pressure.

Since the plurality of spheres (171t to 172□) and the plurality of spheres (ILt to 182□) are on the same vertical plane, the vertical member (12s) is forced vertically by this pressure support. Moreover, the second vertical member support (16□)
connects the vertical member (12s) to the first vertical member support (161)
As a result, the vertical member (125) pushes against the spheres (171t to 172) of the first vertical member support (16t).
2) is automatically positioned at the position (X direction). Therefore, by driving the carriage (95) along the beam (8) in advance to the required position (X direction), or after clamping the vertical member (12s) as described above, the carriage (95) By driving the vertical member (12s) to the required X position, the X position of the vertical member (12s) is automatically determined.

A presser roller (20) is supported by a carriage (95) so as to be able to rise and fall in two directions and rides on the upper surface of the vertical material to be welded (12s), and a second pressure means (21) is attached to the presser roller (20).
Since a downward pressing force in the X direction is applied to the horizontal member (11), the vertical member (12s) is held vertically and pressed against the horizontal member (11) by the pressing roller (20). Vertical member (1
25) is carried out by the spheres (171s to 172□) and (1811 to 1822), so the vertical clamping by these does not impede the movement of the vertical member (12s) in the vertical direction 2 and provides special resistance. Because I have nothing to give,
The vertical member (12s) is in close contact with the horizontal member (11).

In other words, the vertical member (12s) can be accurately positioned in two directions.

As described above, the gate-shaped frame can be driven in the y direction with the vertical member (12s) pressed against the horizontal member (11) in two directions and sandwiched vertically. Since the vertical clamping is performed by the spheres and the vertical pressing is performed by the press roller (20), the carriage (95) moves smoothly in the y-direction when the portal frame moves in the y-direction. In other words, the resistance to movement of the gate-shaped frame in the y direction is small. By driving the carriage (95) in the X direction after moving the gantry to some extent in the y direction, or by driving the carriage (95) in the X direction while driving the gantry in the y direction, the y The X-direction position of the vertical member (12s) at each point in the direction can be arbitrarily adjusted or set.

In this way, the gate-shaped frame is driven in the y direction, and the vertical member (12
Adjust or set the position of the first consumable electrode type gas shielded arc welding machine (10
s t ) and the second consumable electrode type gas-shielded arc welding machine (10 s 2 ), by alternately energizing one side for welding every time a predetermined distance is moved in the y direction, or by simultaneously energizing welding, welding can be performed vertically. material (12s) is horizontal material (
11) will be temporarily welded.

As mentioned above, the vertical member (125) for the horizontal member (11)
) is automatically positioned in the X direction and two directions, and the vertical member (12s) is vertically determined automatically, so the labor of the tack welding operator is significantly reduced. Vertical member (12s) for horizontal member (11)
) position and verticality are extremely accurate.

Other objects and features of the present invention will become apparent from the following description of embodiments with reference to the drawings.

〔Example〕

FIG. 1 shows a front view of an embodiment of the present invention, and FIG. 2 shows a right side view of FIG. 1. Two bases 11+12 are arranged on the floor in parallel to the horizontal direction y, and rails 21*22 are fixed to the bases 11y12 in parallel to the y direction. The rail 21t22 has a gantry base 4 extending in the y direction.
Wheel 311t312 rotatably supported by 1*42;
3□1゜32□ is on board. The wheels 311t312 are rotationally driven by the electric motor 51 via a reduction gear, and the wheels 3□1,
3□2 is rotationally driven by an electric motor 52 via a reduction gear.

A rotary encoder is coupled to these reducers (not shown), and a motor energization circuit (not shown) (y travel driver) monitors the pulses generated by both rotary encoders to determine the speed at a specified speed. direction, electric motor 51
and 52 are rotated to rotate the wheels 311, 312 and the wheel 321.
Synchronize the rotational speed of 322°. As a result, the gate-shaped mounts (1 to 7) travel in the y direction while maintaining their gJ7 in the horizontal X direction perpendicular to the y direction.

Supports 61 and 6° are erected on the gantry bases 41 and 4°, and a beam 7 extending in the X direction is fixed to the upper ends of these supports 61+62. A beam 8 is fixed to this dye 7, and in this embodiment, 5
Carriages 91 to 95 are mounted so as to be movable in the X direction. The carriages 91 to 95 are equipped with ball bearings forming a circulation loop, and a portion of these ball bearings (a plurality of balls) is connected to the beam 8.
Bearing grooves 22 extending parallel to the X direction on the upper and lower edges of
I'm addicted to 1,222.

To explain the carriage 95 here, the carriage 9. is y for beam 8
Although movement in the direction and the X direction is restricted, it can move freely in the X direction. A rack 23 is parallel to the beam 8,
A pinion 24, which is fixed to the beam 7 and meshes with the rack 23, is rotatably supported by a carriage 95.
This pinion 24 is rotationally driven by an electric motor 25 via a reduction gear (not shown). This causes the carriage 95 to move in the X direction. The reducer is equipped with a rotary encoder and a home position switch, and the beam 7 has a striker 255 (not shown; (corresponding to 251 shown in Figure 1). Although not shown in the figure, the electric circuit (X traverse driver) that urges the electric motor 25 to rotate forwardly rotates the electric motor 25 and receives pulses generated by the rotary encoder from the time when the home position switch is switched from closed to open. an X position tracking circuit that counts up the pulse and counts down the pulse when the electric motor 25 is reversely energized to generate data (actual X position) indicating the X direction W (home position reference point) of the carriage 95; , a positioning circuit is provided which urges the motor 25 to rotate in a direction in which the actual X position matches an X position instruction value inputted from an operation board (not shown), and stops the motor 25 when the actual X position matches.

The other carriages 91 to 94 also have the same structure as the carriage 9°.

FIG. 3 shows an enlarged front view of the carriage 95, and the carriage 95 is equipped with two consumable electrode type gas-shielded arc welding machines 10stylOsz. These configurations will be described later. As shown in FIG. 4, the rear part of the welding machine 10sx*105z is equipped with a mechanism for vertically holding the longitudinal material 125 and pushing it downward.

Referring to FIG. 4, the carriage 95 has two vertical directions.
A fixed support leg 161 is fixed to the support leg 161, and 411 steel balls 1711 to 17□2 are arranged on the same vertical plane and distributed in the X, Y, and X directions (see Fig. 2). It is rotatably supported by a single ball bearing. Another support leg 162 faces the fixed support leg 161,
It is supported by a carriage 95 so as to be movable in the X direction, and extends in parallel in two directions. Four steel balls 1811 to 1822 are mounted on the movable support leg 162 on the same vertical plane.
They are distributed in two directions, y and Y, and are rotatably supported by ball bearings. Steel ball 18. , -1822 are opposed to the steel balls 1711 to 1722, respectively. The movable support leg 162 is double-driven in the X direction by the first hydraulic cylinder 19. By setting the longitudinal member 125 between the fixed support leg 161 and the movable support leg 162 and driving the movable support leg 162 with the first hydraulic cylinder 19 in a direction approaching the fixed support leg 16i, the steel balls 1811 to 1822 are first hits the back side of the longitudinal material 125, and the longitudinal material 12. is pushed and its surface hits the steel balls 1711 to 1722, and the longitudinal material 125 is positioned at the position determined by the X position of the fixed support leg 161, and the longitudinal material 125 is compressed by the force of the first hydraulic cylinder 19. and forced vertically.

A second hydraulic cylinder 21 is fixed to the carriage 95, and a bearing is fixed to the lower end of a piston rod extending from the second hydraulic cylinder 21, and the presser roller 20 is supported horizontally and freely rotatably by this bearing. There is. By connecting the hydraulic port at the upper end of the second hydraulic cylinder 21 to high pressure and the hydraulic boat at the lower end to the drain, the presser roller 20 descends and comes into contact with the upper surface of the longitudinal material 125, and the longitudinal material 12
Pressure 5 downward. This brings the lower surface of the longitudinal material 125 into close contact with the upper surface of the panel material 11. Steel ball 171 mentioned above
1~■7□2+1811~1822 and presser roller 2
The relative positional relationship between 0 and the longitudinal material 125 is shown in FIG. Note that FIG. 5 is an enlarged plan view.

See Figure 3. A welding machine base 26 is attached to the carriage 95 so as to be able to move up and down in two directions.
However, the electric motor (
(not shown).

The welding machine base 26 has a y-direction guide 42, and a leg stand 43 is attached to this so as to be movable in the y-direction. This foot stand 43 is driven in the y direction by an electric motor 27 via a speed reducer. A vertical rotation leg 28 is attached to a leg extending downward from this leg base 43.
1,282 are rotatably coupled around a shaft extending in the y direction.

The vertical rotation leg 28tp282 has links 291°292
One end of these links 291 and 292 is rotatably connected to the tip of the piston rod of the air cylinder 30, and the other end of these links 291 and 292 is rotatably connected to the tip of the piston rod of the air cylinder 30, which extends in the y direction. They are movably connected. When the air cylinder 30 projects its piston rod downward, the rotating legs 281°28□ open in the direction away from the longitudinal member 20, and when the piston rod is pulled upward, the rotating legs 281 and 28 open.
81 t 282 closes in the direction approaching the longitudinal material 20.

The consumable electrode type gas-shielded arc welding torch 311 is fixed to a torch holder 321.
21 is coupled to a vertical adjustment mechanism 341. The vertical adjustment mechanism 341 is equipped with a tracing leg 331. There is a spherical roller at the lower end of the tracing leg 331, which contacts the upper surface of the panel material 11, thereby maintaining the vertical adjustment mechanism 341 at a constant distance from the upper surface of the panel material 11. Panel material 1
The height of the torch 311 relative to the top surface of the torch 1 can be manually adjusted using an adjustment knob of the vertical adjustment mechanism 341. Vertical adjustment mechanism 34
1 is connected to the rotating leg 281 via an X position adjustment mechanism, and by turning the 1 manual adjustment knob 361, the X position of the vertical adjustment mechanism 341 can be manually adjusted.

The support structure of the consumable electrode type gas shield arc nozzle 312 of the welding machine 1052 mounted on the rotating leg 282 is also the same as that of the welding machine 1052 described above.

In the above, the longitudinal material vertical clamping mechanism, lower pressure mechanism, and welding machine equipped on the carriage 95 have been explained, but the other carriages 91 to 94 and the various mechanisms and welding machines equipped on them are also explained. Carriage 9. It has the same structure as the one equipped with.

In this embodiment, a slide guide 13 protruding in the X direction is fixed to the gantry base 42 in order to determine the X position of the longitudinal members 121 to 125 with reference to the side edges of the panel member 11. , the base of the side edge detector 15 is mounted so as to be movable in the X direction, and is driven forward (to the right) and backward (to the left) in the X direction by an electric motor 14 via a speed reducer (not shown). A rotary encoder is coupled to the reduction gear. The electric circuit (side edge detection driver) that urges the electric motor 14 to rotate in the forward and reverse directions receives a side edge detection instruction while the home position sensor located directly below the electric motor 14 is detecting the base of the detector 15. Then, when the electric motor 14 is driven in the normal rotation and the home position sensor no longer detects the base of the detector 15, the rotary encoder starts counting up the generated pulses, and the rotary encoder is rotatably attached to the lower end of the hanging rod 38. The touch roller 37 touches the panel material 1.
1 and the hanging rod 38 closes the left switch 392, the motor 14 is stopped there, and the motor 14 is reversed to count down the generated pulses of the rotary encoder, and when the left switch 39 returns to open, the motor 14 is stopped there. Electric motor 14
stop.

The count data of the pulses generated by the rotary encoder is
The distance from the home position to the left end of the panel material 11 is shown. Thereafter, when the right switch 391 is closed, the electric circuit (side edge detection driver) that urges the motor 14 to rotate in the forward and reverse directions rotates the motor 14 in the forward direction and counts the generated pulses of the rotary encoder until it is stopped (instructed to finish). When the left spindle 392 is closed, the motor 14 is reversed and counted down, and when both the five-way switches 391 and 392 are open, the motor 14 is stopped. This results in
Even when the gate-shaped pedestals (1 to 7) are moving in the y direction,
The touch roller 37 of the hanging rod 38 traces the left end of the panel material 37, and the count data indicates the X position of the left end. This count data is given to an electric circuit (X traverse driver) that drives the carriages 91 to 95 in the X direction.

The X transverse driver of the carriage 91 is at its home position (the same X position as the home position of the detector 15:
Add the above-mentioned count data indicating the left end position of the panel material 11 to the origin O) data, and further add the longitudinal material 1 from the left end.
Calculate the target position by adding specified distance data up to 21,
The carriage 91 is driven to the target position. carriage 9
The X transverse drivers 2 to 95 (one of which is represented by 91) are located at the X position (91) of the home position of the carriage 91.
The current X position from the home position (X distance from the home position of )+91 is added to the home position (X origin 0) of the detector 15, and the count data indicating the left end position of the panel material 11, and further, The carriage 91 is driven so as to match the value obtained by adding the specified distance data from the left end to the longitudinal material 12i.

As a result of the above, while the portal frame (1 to 7) is moving in the y direction, the distance in the X direction between the left end of the panel material 11 and the carriages 91 to 95 is constant, and thereby the relongation material 121
to 125 are forced to a specified distance from the left end of the panel material 11, respectively.

In addition, the carriages 91 to 95 are provided with welding machine pendant boxes 401 to 40. It is equipped with a gate type mount (1
-7) are equipped with a control operation panel 41.

Next, the manner of use of the above-mentioned welding device will be explained.

(1) With the gate-shaped frame (1 to 7) positioned outside (y direction) the station (welding work area) where the panel material 11 is installed, the panel material 11 is placed on the workpiece pedestal of the station. The longitudinal members 121 to 125 are placed on the longitudinal members at approximately designated positions and held upright with suitable supports.

(2) Operate the operator on the input panel surface of the control operation panel 41 to bring the gate-shaped mounts (1 to 7) close to the ends of the longitudinal members 121 to 125 in the y direction and stop them, and then operate the control operation panel 41. Then, the carriages 91 to 95 are positioned approximately at the tip positions (in the X direction) of the longitudinal members 121 to 125. The movable support leg (162) is opened and retracted (position shown in two-dot chain line in FIG. 5), the welding machine nozzle is also opened and retracted (position away from the longitudinal material), the presser roller is retracted upward, and the side edge detector 15 is the home position evacuation.

(3) The gate-shaped mounts (1 to 7) are Y-driven to a position where the roller of the side edge detector 15 can touch the left end of the panel material 11, and stopped there. The longitudinal members 121 to 125 are now located between the fixed support leg (16s) and the movable support leg (162). Here, or up to this point, the control operation 1i41 is performed for each of the longitudinal members 121 to 12. Set or input the specified distance and temporary welding pitch (y direction). Welding conditions (including the welding length in the y direction-point) are set or input in the pendant boxes of the welding machines of the carriages 91 to 95.

(4) Enter travel preparation into the control panel 41. The control panel 41 gives a start signal to the side edge detector 15, thereby moving the side edge detector 15 to a position following the left edge of the panel material 11.
A vertical pinch signal is given to 95. Each carriage 91-95
The movable support leg (162) moves from the retracted position to the fixed support leg 16.
1, and as a result, the longitudinal materials 121 to 125
are vertically clamped. After each of the carriages 91 to 95 completes this nipping, the presser rollers are driven downward to press down the longitudinal material.

(5) Input welding preparation to the control panel 41. The control panel 41 gives this to the pendant boxes 401-405, which close the pivot legs (28t*282). This causes the nozzles (311, 312) to face the corner to be welded, as shown in FIG. At this time, the worker:
Check around the nozzle and adjust the nozzle's vertical position and y position using the knobs (351, 36t) as necessary. The operator then inputs welding information into the control panel 41.

If this is the first (odd number) welding instruction input, the control panel 41 causes the welding machines 1011 to 1051 to start welding.

Pendant box 40. -405, whereby the nozzles of the welding machines 1011-10,1 are driven from the two-dot chain line position to the solid line position shown in Fig. 5, welding is performed during that time, and when the nozzle reaches the solid line position, welding is stopped. The nozzle is returned to the home position (double-dashed line position).

(6) The operator inputs automatic travel to the control panel 41. The control panel 41 instructs the carriages 91~9° to retract the presser rollers, and then moves the carriages 91~9° to the gate type mounts (l~7) for a specified distance.
is driven in the y direction and stopped.

(7) The operator then inputs welding into the control panel 41. If this is the second (even numbered) welding instruction input, the control panel 41 first controls the carriages 91 to 9. The presser roller is instructed to descend, and when it finishes descending, the welding machines 101° to 10,2 start welding the pendant box 4.
01-40. This instructs the welding machines 1012-1 to
The nozzle 052 is driven from the two-dot chain line position shown in Fig. 5 to the solid line position, during which welding is performed, and when the nozzle reaches the solid line position, welding is stopped and the nozzle is returned to the home position (two-dot chain line position!). It will be done.

(8) The operator inputs automatic travel to the control panel 41. The control operation panel 41 instructs the carriages 91 to 95 to retreat the presser rollers, and then moves the gate type mounts (1 to 7) a specified distance.
is driven in the y direction and stopped.

(9) The operator then inputs welding into the control panel 41. If this is the third (odd number) welding instruction input, the control panel 41 first controls the carriages 91 to 9. The presser roller is instructed to descend, and when the descent is finished, the welding machines 1011 to 1051 start welding from the pendant box 4.
01-405, thereby welding machines 1011-1
The nozzle 051 is driven from the two-dot chain line position shown in Fig. 5 to the solid line position, during which welding is performed, and when the nozzle reaches the solid line position, welding is stopped and the nozzle is returned to the home position (two-dot chain line position). .

(10) Hereinafter, the above-mentioned (7) to (9) are repeated.

(11) When all the carriages 91 to 95 detect that no longitudinal material is present, the control operation panel 41 stops the portal frames (1 to 7) and instructs the pendant boxes 401 to 403 to retreat. The welder drives the nozzle to the retracted position. Note that each carriage, when detecting the absence of longitudinal material, retracts the presser roller and retracts the movable support leg 162.

(12) The operator operates the control panel 41 to move the gate-shaped mounts (1 to 7) outside the station (welding work area) and stop them.

According to the embodiment described above, the side edge detector 15 detects the side edge position of the panel material 11. Since the home position of the side edge detector 15 is located at a predetermined distance from the rail 22, the side edge position is ultimately based on the rail 22. Accordingly, the carriages 91 to 95 move in the X direction so as to be a specified distance from the side edge (designated X position of the longitudinal materials 121 to 125) in accordance with the side edge position of each point in the y direction of the panel material 11. The carriages 91-95 are mounted on fixed support legs 16. and the movable support leg 162, the steel balls 171° to 17141
Since the longitudinal materials 121 to 125 are vertically clamped via the longitudinal materials 1811 to 1814, the longitudinal materials 121 to 125 automatically become vertical, and the X position of each point in the y direction automatically becomes a designated position. At least during welding, presser roller 2
0 presses down on the longitudinal members 121 to 125, so the longitudinal members 121 to 125 are welded to the panel member 11 in close contact with it.

In addition, in the above embodiment, the welding machine moves the torch (311) to y
Equipped with an automatic movement mechanism (42, 27) that drives in
) moves in the y direction to perform welding of a specified length, but welding may be performed while moving the gate-shaped mounts (1 to 7).

〔Effect of the invention〕

Since the plurality of spheres (1711-1722) and the plurality of spheres (llh1-1822) are on the same vertical plane, the vertical member (12
s ) is forced vertically. Moreover, since the second vertical member support (162) pushes the vertical member (12s) toward the first vertical member support (161), this causes the vertical member (
12s) is the sphere (17) of the first vertical member support (16t).
11 to 1722) is automatically positioned at digit 11 (X direction). Therefore, by previously driving the carriage (95) along the beam (8) in the required position W (X direction), or as described above, the vertical member (12
The X position of the vertical member (12s) is automatically determined by driving the carriage (95) to the required X position after clamping the vertical member (12s).

A presser roller (20) is supported by a carrier cage (95) so as to be able to rise and fall in two directions and rides on the upper surface of the vertical material to be welded (12s), and a second pressure means (21) is attached to the presser roller (20).
Since a downward pressing force in the Z direction is applied to the vertical member (125), the vertical member (125) is pressed against the horizontal member (11) while being held vertically by the pressing roller (20). Vertical members (12
s) is carried out by the spheres (17t1-1722) and (1811-1822), so
The vertical clamping by these does not impede the movement of the vertical member (12s) in the vertical direction Z and does not provide any particular resistance, so the vertical member (12s) is in close contact with the horizontal member (11).

In other words, the vertical member (12s) can be accurately positioned in two directions.

Drive the gate-shaped frame in the y direction and move the vertical member (12s) to the
Adjust or set the position in the direction, and then move the first consumable electrode type gas shielded arc welding machine (10s 1) and the second consumable electrode type gas shielded arc welding machine (10s 1) at the required position in the y direction.
The vertical member (12s) is temporarily welded to the horizontal member (11) by alternately applying welding force to one side each time the vertical member (12s) moves a predetermined distance in the y direction, or by simultaneously applying welding force to the vertical member (12s).

As mentioned above, the vertical member (12s) for the horizontal member (11)
) is automatically positioned in the X and Z directions, and the vertical member (125) is automatically aligned vertically, which greatly reduces the labor of the tack welding operator. , vertical member (12s) relative to horizontal member (11)
) position and verticality are extremely accurate.

[Brief explanation of drawings]

FIG. 1 is a front view of one embodiment of the present invention. FIG. 2 is a right side view of FIG. 1. FIG. 3 is an enlarged front view of the carriage 95 shown in FIG. 1. FIG. 4 shows the carriage 9. shown in FIG. Welding machine 10
It is a longitudinal cross-sectional view showing the longitudinal material support mechanism on the back of stylOs2. FIG. 5 shows the presser roller 20 shown in FIG. Longi material 12
．． FIG. 3 is an enlarged plan view showing the mutual positional relationship between the nozzle 31tt312 and the nozzle 31tt312. 11 J2: Base 2t +22:
Rail 311~3□2: Wheel 41.42: Gantry base"1 t52: Electric motor 6
1162: Support 7: Beam (1 to 7: Gate-shaped frame) 8
: Beam 91~9. : Carriage (carriage) 101
1 to 1052: Welding machine (consumable gas shielded arc welding machine) 11: Panel material (material to be welded, horizontal material to be welded) 1
21 to 125: (material to be welded, vertical material to be welded) 13 Ni slide guide 14: Electric motor 15: Side edge detector 161: Fixed support leg (first vertical member support) 162: Movable support leg (second vertical member) Support) 1711~17°2.18
11-18. ．． 2: Steel ball (sphere) 19: Hydraulic cylinder (
(first pressurizing means) 20: Presser roller (presser roller) 21: Hydraulic cylinder (
2nd pressurizing means) 221.222: Bearing groove
23 Nirakku 24: Pinion 25: Electric motor 26: Welding machine base 27: Electric motor 28
1.282: Vertical rotating leg 291.292: Link 30: Air cylinder 311.31□=
Nozzle 321.322: Torch holder 331,3
3: Copying leg 341.34□: Vertical adjustment mechanism 351
．． 35□: Adjustment knob 361. 36□: Adjustment knob of X position adjustment mechanism 37: Touch roller 38: Hanging rod 391: Right switch 392: Left switch 401 to 405: Pendant box 41: Control operation panel 42: Y direction Guide 4
3: pedestal

Claims (1)

[Claims] A gate-shaped frame that runs in the horizontal direction y across the material to be welded; A beam that extends in the horizontal direction x that intersects the y direction; A carriage that is supported by the beam and runs in the x direction; The y direction and perpendicular thereto. A first vertical member support supported by the carriage rotatably supports a plurality of spheres that are spaced apart from each other in the vertical direction z and located on the same vertical plane; The carriage rotatably supports a plurality of spheres that are separated but located on the same vertical plane, and moves forward and backward in the x direction with respect to the first vertical member support with a vertical member to be welded therebetween. a second vertical member support; a first pressurizing means that applies a pressing force in the x direction to the second vertical member support; a presser that is supported by the carriage so as to be movable up and down in the z direction and rests on the upper surface of the vertical member to be welded; Roller; on the presser roller,
A second pressurizing means for applying a downward pressing force in the z-direction; equipped on the carriage and welding by copying the front corner of the vertical material to be welded between the vertical material to be welded and the horizontal material to be welded on which it is placed; a first consumable electrode type gas-shielded arc welding machine that is equipped on the carriage and welds by tracing the back corner of the vertical material to be welded between the vertical material to be welded and the horizontal material to be welded on which it is placed; A tack welding device comprising: a second consumable electrode type gas shielded arc welding machine.