JPH0785835B2 - Rebar welding equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing bar welding apparatus for welding reinforcing bars to the outer periphery of the head of a foundation pile.

[0002]

2. Description of the Related Art Conventionally, it has been a manual work to weld reinforcing bars vertically at predetermined intervals to the outer periphery of the head of a foundation pile.

[0003]

The conventional welding work is
Since it was the work of the welding engineer (worker) exclusively, not only was the work specialized, it was difficult to secure the engineer, it became hard work, and it was difficult to improve work efficiency,
The quality of the welded state was determined by the superiority and inferiority of the technology, and it was considered difficult to always achieve a uniform finish.

[0004]

However, according to the present invention, by setting various conditions such as the angle of the welding rod, the contact pressure, and the moving speed, automatic high efficiency and uniform welding can be achieved. The point was settled.

That is, according to the present invention, the lower part of the elevating means of the vertical frame is attached to the upper part of the machine base having the retaining means at the lower part,
The central portion of the horizontal rod is fixed to the vertical frame, and the bases of the welding arms are attached to both sides of the horizontal rod so as to be able to come into contact with and separate from each other. A bracket for fixing a welding rod is axially moved to each of the welding arms. The reinforcing bar welding apparatus is characterized in that the welding rod holding portion is attached to the bracket so as to be adjustable in angle. The retaining means is an electromagnet or a permanent magnet. The electromagnets are turned off and the permanent magnets are provided with a separating means to interrupt the magnetic attraction. Next, the elevating means is a fluid pressure cylinder, a rack and a pinion, or a screw rod and a nut. Further, the base of the elevating means of the frame is rotatably installed on the horizontal axis of the bracket on the machine base.

In the above, when a fluid pressure cylinder is used as the lifting means, the lifting speed can be freely adjusted by adjusting the amount of pressurized oil fed by the pump. For example, if the oil supply amount is stored over time, automatic welding can be performed at a desired speed according to a sequence by automatic adjustment.

In the present invention, the device for supplying the reinforcing bar is not described. However, if both the automatic supplying device and the automatic retaining device are provided, the device can be rotated along the foundation pile head to be fully automatic. It can also be welded. Further, if a screw rod is used as the elevating means, it is possible to control the ascending / descending speed of the frame by controlling the rotational speed of the screw rod (or the rotational speed of the nut).

[0008]

According to the present invention, the frame can be automatically moved up and down by providing the frame elevating means on the machine base. Further, a horizontal rod is attached to the frame, the bases of the welding arms are attached to both sides of the horizontal rod so as to be able to come in and out of contact with each other, and a bracket for fixing a welding rod is attached to each welding arm so as to be movable in the axial direction. Since the welding rod is attached to the bracket so that the angle can be adjusted, the end of the welding rod can be adjusted in any of front, rear, left, right, up, and down directions. Therefore, it is possible to accurately contact the welded portion of the reinforcing bar and perform proper welding.

[0009]

Embodiments of the present invention will be described with reference to FIGS.
6 will be described.

The electromagnet 2 is fixed to the bottom of the machine base 1 and
On one side of the upper part of the bracket, the brackets 3 are fixedly installed at a predetermined interval (FIG. 1), and the brackets 3 and 3 are attached to the horizontal shaft 4 to
The base of the fluid pressure cylinder 5 is rotatably installed. A base end portion of a support rod 7 is fixed to the tip end of the lifting rod 6 of the fluid pressure cylinder 5, and an upper end of a vertical frame 8 is fixed to the tip end of the support rod 7. One side of the lower portion of the vertical frame 8 is slidably abutted and guided by a guide rod 9 vertically installed on the machine base 1. The central portion of the horizontal rod 10 is fixed to the vertical frame 8 via a bracket 27, and the bases of the welding arms 11 and 11 can be attached to and detached from each other on the left and right sides of the horizontal rod 10 via the brackets 28 and 28. The welding arms 11, 11 are provided with connecting tools 13, 13 for guiding and supporting the welding rods 12, 12 so as to be movable in the axial direction.

The connecting tool 13 includes a welding arm 11 fixed to a bracket 28, a screw rod 30 screwed to the welding arm 11, and an angle adjusting plate 31 connected to a lower end of the screw rod 30.
31a, a support cylinder 32 fixed to the angle adjusting plate 31, a screw rod 33 screwed to the support pipe 32, and a bracket 35 supporting a welding rod guide nozzle 34 connected to the tip of the screw rod 33. ing. In the above, when the wing nut 36 in FIG. 5 is rotated and the press band 37 is loosened, the nozzle 34 is moved in the directions of arrows 38 and 39 in FIG.
The support position of 2 can be adjusted. The welding rod 12
Are sent in the direction of arrow 40.

The above embodiment is a welding device 16 for welding the reinforcing bar 15 fixed to the outer circumference of the head of the foundation pile 14. 1 in the figure
Reference numeral 7 is a motor, and 18 is an oil pump.

In the above embodiment, when the electromagnet 2 is energized, the electromagnet 2 is fixed to the outer periphery of the foundation pile 14 by the iron plate 19.
Since it is adsorbed on, it can be firmly held with the machine base 1.
Therefore, after the reinforcing bars 15 are temporarily fixed (for example, fixed with a magnet) to the outer periphery of the foundation pile 14, the knob 20 is turned to move the rack 1
0a and the screw 29 that engages with the bracket 0a
8 indicates welding arms 11 and 11 along the horizontal rod 2
The position of the welding rod is determined because it moves in the left-right direction like 1 or 22 and the connectors 13, 13 move accordingly. Next, the bracket 35 can be removed by loosening the wing nut 41. In addition, the screw 33 is gripped 3
By rotating by 3a, the screw 33 can be moved in the directions of arrows 42 and 43. Further, the wing nut 44 can be loosened and the angle of the support cylinder 32 can be adjusted as shown by the arrow 45. Next, by rotating the knob 3a, the screw rod 30 can be moved as shown by arrows 24 and 25 (FIG. 5). As described above, the support position, angle, etc. of the nozzle 34 can be freely adjusted, whereby the positions of the welding rods 12, 12 can be accurately matched to the welded portion.

[0014]

According to the present invention, the lower part of the elevating means of the vertical frame is mounted on the machine base having the retaining means, the horizontal rod is fixed to the vertical frame, and the base of the welding arm is detachably attached to the horizontal rod. Since the welding rod mounting bracket is attached to the welding arm so as to be movable in the axial direction and the welding rod is attached so that the angle thereof can be adjusted, the tip of the welding rod has the effect of accurately controlling the position.

Therefore, there is an effect that the welding process is accurate and the homogeneous welding can be automatically performed with high efficiency.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is an enlarged plan view of the connector and the nozzle.

FIG. 5 is an enlarged front view of the same.

FIG. 6 is an enlarged side view of the same.

[Explanation of symbols]

 1 Machine stand 2 Electromagnet 3 Bracket 4 One horizontal shaft 5 Fluid pressure cylinder 6 Elevating rod 7 Support rod 8 Vertical frame 9 Guide rod 10 Horizontal rod 11 Welding arm 12 Welding rod 13 Bracket 14 Foundation pile 15 Reinforcing bar 16 Welding device 17 Motor 18 Oil Pump 19 Iron plate 20 Knobs 21, 22 Arrows 23 Knobs 26 Knobs 24, 25 Arrows

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Patent Publication Sho 42-40296 (JP, B2) Actual Public Hei 2-14863 (JP, Y2) Actual Public Sho 34-4643 (JP, Y1)

Claims (4)

[Claims] 1. An upper portion of a machine base having a retaining means at a lower portion,
The lower part of the elevating means of the vertical frame is attached, the central portion of the horizontal rod is fixed to the vertical frame, and the bases of the welding arms are attached to both side portions of the horizontal rod so as to be separable from each other. A reinforcing bar welding device, wherein a bracket for fixing a welding rod is attached so as to be movable in an axial direction, and a holding portion of the welding rod is fixed to the bracket so that an angle can be adjusted. 2. The reinforcing bar welding apparatus according to claim 1, wherein the retaining means is an electromagnet or a permanent magnet. 3. The reinforcing bar welding apparatus according to claim 1, wherein the lifting means comprises a fluid pressure cylinder, a rack and a pinion, or a screw rod and a nut. 4. The reinforcing bar welding apparatus according to claim 1, wherein the base of the elevating means of the frame is rotatably installed on the horizontal axis of the bracket on the machine base.