JPH0661618B2 - Frame material copy welding device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a copying welding device for a frame material, and more particularly, to a frame rod that is in contact with the front and rear ends of a plurality of vertical rods even if the frame rods are parallel or non-parallel. Is also designed to enable copy welding.

(Prior Art) As shown in FIG. 5, the left and right vertical rods 2 and 2 are parallel to each other, and the frame rod 3 contacting the rear ends of the vertical rods is at a right angle or is not connected like a chain line before welding. A diagonal frame member 1a which can be made into a right angle, or a horizontal member 5 is provided on a plurality of vertical rods 4 as shown in FIG. Welding of the raw material by welding the intersection points of the frame rods 6 at the front and rear ends of the vertical rod 4.
Of the vertical frame 7 held in parallel by an appropriate holding jig as shown in FIG. 7, or the diagonal frame member 1c in which the frame rods 8 are in contact with the front and rear ends of the vertical rod 7.
There is no conventional device for fully automatic welding by copying (gritting material).

(Problems to be Solved by the Present Invention) The present invention is directed to the frame members 1a, 1b, and 1c illustrated in FIGS.
It is an object of the present invention to develop a welding apparatus suitable for welding a large amount or a small amount of diagonal frame materials such as.

(Means for Solving Problems) The copying welding apparatus for a frame material of the present invention meets the above-mentioned object, and has a rear surface having a contact surface F ₁ parallel to the carriage 13 moving on the movement guide 12. Fixing tool 16 and contact surface F ₂ that is parallel or non-parallel to the moving direction of the carriage 13.
And a front guide 17 having a profile guide guide 18 parallel to the contact surface F ₂ of the tool, and a protrusion 20 provided on the carriage 13 and a front and rear part of the protrusion 20. Front and rear position adjusting blocks 22 and 23 that enable movement adjustment, and a moving piece 25 provided at an end of a left and right moving rod 24 loosely inserted in each of the adjusting blocks 22 and 23,
Each position adjusting block 22, and a spring member 26 interposed between 23 and each moving piece are provided, and each moving piece 25 is sequentially abutted on the side surfaces of the vertical rods 2, 4, 7, etc. of the frame member. Spring material 2
Vertically movable stoppers 27, 27 for compressing 6 to stop the movement of the moving piece 25 by the carriage 13, and the upper side of the pressure contact portion between the vertical rod and the frame rod when each stopper hits the side surface of the vertical rod. Attach the welding torch 29 that faces the welded metal wire 30 on the planned welding line of, and adjust the position adjustment block 22 on the rear side.
Is fixed to the adjusting position, and the copying piece 31 protruding from the position adjusting block 23 on the front side is movably engaged with the copying guide strip 18 of the front side fixing tool. It has the benefit of being able to provide a profiling welding device that supports automatic welding of multiple frame members of the same shape in parallel.

(Embodiment) The attached drawings show an embodiment of the present invention. FIG. 1 is a partially cutaway plan view, FIG. 2 is a partially cutaway perspective view of the same portion, and FIG.
The figure is a partial cutaway plan view showing the relationship between the stopper and the welding torch, FIG. 4 is a plan view showing the position adjusting blocks on the rear side and the front side, and FIGS. 5, 6 and 7 are the copy welding apparatus of the present invention. It is an illustration figure of the frame material suitable for welding by.

This embodiment shows the profile welding apparatus of the present invention for welding the frame material 1b (grating material) shown in FIG. 6, but the frame materials 1a and 1c shown in FIGS. 5 and 7 can also be welded. It can be welded by the welding apparatus of this embodiment.

In FIG. 1, 11 is a grounded surface plate, and a rail-shaped movement guide 12 in the left-right direction insulated from the surface plate is provided on the rear side thereof, and a chain reciprocally driven by a reversible motor M on the movement guide 12. The carriage 13 that reciprocates in conjunction with (not shown) is mounted.

The front part of the movement guide 12 of the surface plate 11 forms a welding work surface of the frame member 1b, and pillow members 14 and 1 of frame members having various other shapes.
5, the rear fixture 16 having the contact surface F ₁ parallel to the moving direction of the carriage 13 on the front surface is fixed to the surface plate 11 together with the pillow material 14, and the front fixture 1 is provided on the front side.
There are provided one to several cylinders 19 that push the 7 backwards with excitation. The front fixture 17 has a welding surface F ₂ on the rear surface, and fixes the front frame rod 6 which is not parallel to the moving direction of the carriage 13 shown in the figure by pushing the rear fixture 16 by the cylinder 19. On the upper surface of the front fixing tool 17, a groove-shaped copying guide strip 18 parallel to the fixing surface F ₂ is provided.

A projecting member 20 perpendicular to the movement guide 12 on the carriage 13
A guide round bar 21 having a rear end fixed to the carriage 13 and a front end fixed to a hanging piece at the front end of the projecting member is provided on the lower surface of the projecting member 20, and the forward and backward movement adjustment can be performed on the round bar pair 21. The front and rear position adjusting blocks 22 and 23 are loosely inserted, and the rear position adjusting block 22 can be fixed to the guide bar pair 21 at a suitable time by a fixing tool (not shown). The adjusting blocks 22 and 23 have stop plates at the right end. The movable rod 24 in the left-right direction is loosely penetrated, and the movable piece 25 is attached to each left end of the movable rod 24. Each position adjustment block 22, 23
A spring member 26 is interposed between the moving piece 25 and each moving piece 25. Moving piece 2
5, a stopper 27 that sequentially abuts against the side surfaces of the vertical rods 4 of the frame member 1b when the solid line in FIG. 4 descends to compress the spring member 26, thereby stopping the movement by the carriage 13, A welding torch 29 is mounted so that the welding metal wire 30 faces the planned welding line on the upper surface of the pressure contact portion between the vertical rod 4 and the frame rod 6. The stop 27 is lowered by the cylinder 28 as described above,
Or, as shown by the chain line in Fig. 4, rise above the vertical rod 4,
The welded metal wire 30 does not come into contact with the planned welding line because the bottom end of the welded metal wire 30 contracts at the end of the previous welding to form a ball.

The position adjustment block 22 on the rear side is fixed to the pair of guide rods 21 as described above after the position adjustment, and the position adjustment block 23 on the front side is fixed.
Does not stick and projects the copying piece 31 and movably engages the copying piece 31 with the groove-shaped copying guide strip 18 of the front fixture 17.

Attach the limit switch LS to the side of the carriage 13,
When the roll 41 of the actuator 40 of the limit switch LS rides on the projecting surface 37 of the cam 36 attached to the rear surface of the movement guide 12, the switch LS is turned on, and when the roll 41 falls into the recessed surface 38, it is turned off. . The cam 36 and the limit switch LS are installed to control the vertical movement of the stopper 27, etc., but other means may be used.

Reference numeral 50 is a fixing device that presses the frame against the pillows 14 and 15.

(Operation of this Embodiment) To explain the operation of this embodiment, when the start push button switch is pressed, the motor M is activated to move the carriage 13, the projecting member 20, and the adjustment blocks 22 and 23 to the left in FIG. Let
The moving piece 25 moves leftward together with the stopper 27 and the welding torch 29 by the spring material 26, and the copying piece 31 of the front adjusting block 23 traces the copying guide of the front fixing tool 17 to sequentially move the adjusting block 23. To move forward (or sequentially backward).

When the carriage 13 is started, the actuator roll 41 of the limit switch LS rides on the projecting surface 37 of the cam 36 and is turned on, and the air is supplied to the upper chamber of the piston of the cylinder 28, so that the stoppers 27 and 27 are both lowered, and the carriage is stopped. As the movement of 13 progresses, it strikes the side surface of the rightmost vertical member 4 (FIG. 4), and the welding metal wire 30 of the welding torch 29 is reached.
On the welding line described above as shown in FIGS.

At the same time when the stopper 27 hits the side surface of the vertical rod 4, the limit switch LS or the like senses it and a welding current flows through the weld metal along the welding wire 30 to eliminate the balls and heat and weld the planned welding line. The timer that operates with the supply of electric current is turned off after the lapse of the set time of 1 or 2 seconds, the supply of welding current is interrupted, and the cam 3 is timed accordingly.
The actuator roll 41 is pushed into the recessed surface 38 of 6 to turn off the limit switch LS, and the cylinder 28
Supply air to the underside of the piston of
Is raised above the vertical rod 4. Therefore, the moving piece 25 is stopped by the spring material 26 (or another spring).
7. With the welding torch 29, etc., move as shown by the chain line in FIG. 4, and at the same time, the limit switch LS of the carriage 13 is turned on by the actuator roll 41 riding on the projecting surface 37, and again as described above. Under the non-stop running of the carriage 13, it hits the next vertical rod (at the left end in the case of the frame material of FIG. 5) and thereafter the same operation as described above is repeated.

(Operation and Effect) The present invention is directed to the rear fixture 16 having the contact surface F ₁ parallel to the carriage 13 moving on the movement guide 12, and the contact surface F parallel or non-parallel to the moving direction of the carriage 13. _Two
And a front guide 17 having a profile guide guide 18 parallel to the contact surface F ₂ of the tool, and a protrusion 22 provided on the carriage 13 and a front and rear part of the protrusion 22. Front and rear position adjusting blocks 22 and 23 that enable movement adjustment, and a moving piece 25 provided at an end of a left and right moving rod 24 that is loosely inserted in each of the adjusting blocks 22 and 23,
Each position adjusting block 22, and a spring member 26 interposed between 23 and each moving piece are provided, and each moving piece 25 is sequentially abutted on the side surfaces of the vertical rods 2, 4, 7, etc. of the frame member. Spring material 2
Vertically movable stoppers 27, 27 for compressing 6 to stop the movement of the moving piece 25 by the carriage 13, and the upper side of the pressure contact portion between the vertical rod and the frame rod when each stopper hits the side surface of the vertical rod. Attach the welding torch 29 that faces the welded metal wire 30 on the planned welding line of, and adjust the position adjustment block 22 on the rear side.
Is fixed to the adjusting position, and the copying piece 31 protruding from the front side position adjusting block 23 is movably engaged with the copying guide strip 18 of the front side fixing tool. The operation thereof is described in the section of the operation of the embodiment. There is no change in principle in principle, and even if the frame rod of the frame member pressed by the contact surface F ₂ of the front fixture 17 and in contact with the front end of the vertical rod is not parallel to the moving direction of the carriage 13, it is parallel. Even at that time, the copying guide strip 18 of the side fixing tool 17 and the projecting member 20 can be moved back and forth freely. This has the effect of automating the welding of frame materials such as frame materials.

[Brief description of drawings]

The accompanying drawings show an embodiment of the present invention. FIG. 1 is a partially cutaway plan view, FIG. 2 is a partially cutaway perspective view of the same portion, and FIG.
The figure is a partially cutaway plan view showing the relationship between the stopper and the welding torch, FIG. 4 is a plan view showing the rear and front position adjusting blocks, and FIGS. 5, 6, and 7 are the imitations of the present invention. It is an illustration figure of the frame material suitable for welding by a welding device. 11 → Surface plate, 12 → Movement guide, 13 → Carriage 16 → Back side fixing tool, 17 → Front side fixing tool F ₁・ F ₂ → Contact surface, 18 → Simulating guide strip 20 → Projecting member, 21 → Guide round bar pair 22/23 → adjustment block 24 → moving rod, 25 → moving piece, 26 → spring material 27 → stopper, 28 → cylinder 29 → welding torch, 30 → welding metal wire 31 → copying piece

Claims (1)

[Claims] 1. A front fixing device comprising a rear fixing device having a contact surface parallel to a carriage moving on a movement guide and a front fixing device having a contact surface parallel or non-parallel to a moving direction of the carriage. The fixing tool is provided with a copying guide strip parallel to the contact surface of the tool, and the carriage is provided with a projecting member, and the projecting member is provided with front and rear position adjusting blocks capable of adjusting forward and backward movements, and with each of the adjusting blocks. A moving piece provided at the end of the inserted moving rod in the left-right direction and a spring member interposed between each position adjusting block and each moving piece are provided, and each moving piece is sequentially attached to the side surface of each vertical rod of the frame material. Vertically movable stoppers that press against the spring member to stop the movement due to the carriage, and when each stopper hits the side surface of the vertical rod, the welding of the upper side of the pressure contact portion between the vertical rod and the frame rod is performed. Welding with a welded metal wire facing the planned line Frame, the rear position adjustment block is fixed to the adjustment position, and the copying piece protruding from the front position adjustment block is movably engaged with the copying guide strip of the front fixing device. Copy welding equipment for materials.