JPH05123867A - Welding equipment - Google Patents

Abstract

PURPOSE:To easily supply flux by detecting the position corresponding to a chute of a flux hopper and the flux quantity to be stored. CONSTITUTION:The chute 5 is provided on the position corresponding to the flux hopper 4 mounted on a carriage 3 in a traveling range of the carriage and connected to a flux charging vessel 12 on a floor by a conveyor 14. A flux quantity detection means 15 and a means 16 to detect the flux hopper 4 being situated at the position corresponding to the chute 5 are then provided in the flux hopper 4 and when these detection means produce signals at the same time, the conveyor 14 is operated and the flux is supplied to the flux hopper 4. Consequently, the flux can be easily supplied to a submerged welding machine.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welding apparatus in which a submerged welding machine is mounted on a carriage traveling along a rail.

[0002]

2. Description of the Related Art Conventionally, various welding machines have been used for welding steel sheets. Among them, a submerged welding machine can efficiently weld relatively thick steel sheets. In this submerged welding method, flux is dispersed along the welding line, the electrodes are embedded in the flux to form an arc, and welding is performed.

On the other hand, plate girders and box girders are used as structural members for bridges and buildings. When manufacturing these plate girders or box girders, a welding apparatus in which a submerged welding machine is mounted on a carriage traveling along a rail is used. The above welding apparatus is provided with a carriage that can run along rails laid in parallel, and is equipped with a flux spray nozzle, an electrode, and a flux recovery nozzle, and a flux hopper that supplies flux to the flux spray nozzle. It is configured by. Then, for example, in the case of manufacturing a box girder, after arranging the longitudinal welding member and the horizontal welding member with the groove formed at the end with the groove facing each other,
Welding is performed on each welding member while spreading flux on the groove portion and its periphery, and at the same time, the carriage is run at a predetermined speed to perform welding work. At present, the above-mentioned welding apparatus is becoming larger in size as the size of the plate girder and box girder increases.

[0004]

The flux used in the submerged welding machine is a consumable item and needs to be replenished periodically. In the above-mentioned conventional welding apparatus, the flux hopper is provided at the highest position, and this height may reach about 4 to 5 m from the floor as the size of the manufactured girder increases. However, since the replenishment of the flux to the flux hopper relies on human power, workability may be poor and time may be wasted.

An object of the present invention is to provide a welding device capable of supplying flux to the flux hopper without relying on human power, and further capable of automatically performing this supply.

[0006]

In order to solve the above problems, the welding apparatus according to the present invention is a welding apparatus for welding a member to be welded by mounting a submerged welding machine on a carriage traveling along a rail. A chute for supplying flux to the flux hopper, which is installed separately from the cart in a position corresponding to the flux hopper mounted on the cart within the traveling range of the cart, and a container installed on the floor for containing the flux. And a conveyor for connecting the chute and the container to convey the flux contained in the container to the chute.

In the above welding apparatus, the welding apparatus has storage amount detecting means for detecting the amount of flux stored in the flux hopper and position detecting means for detecting that the flux hopper is in a position corresponding to the chute. When the storage amount detecting means detects that the amount of the flux stored in the flux hopper is less than a certain amount and the position detecting means detects that the flux hopper is in a position corresponding to the chute, the conveyor is operated to activate the flux. Is preferably supplied to the flux hopper.

[0008]

According to the above welding apparatus, the chute is fixedly installed on the stand provided at a position corresponding to the flux hopper mounted on the truck within the traveling range of the truck, and the container is placed on the floor. Since the conveyor connecting the chute and the container is provided, when the flux hopper mounted on the truck reaches the position corresponding to the chute, the flux introduced into the container is conveyed to the chute by the conveyor and the flux hopper is also passed through the chute. Can be put into.

In the above welding apparatus, the amount of flux stored in the flux hopper is detected by the stored amount detecting means, and the position detecting means detects that the flux hopper is in a position corresponding to the chute. When the signals of the detection means are simultaneously generated, the conveyor is operated to automatically convey the flux introduced into the container to the chute, and the flux can be introduced into the flux hopper from the chute.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a welding apparatus to which the above means is applied will be described below with reference to the drawings. 1 is a front view of the welding apparatus, and FIG. 2 is a plan view. The welding apparatus 1 shown in the figure is configured such that flux can be replenished from a chute 5 installed at a position different from the carriage 3 to a flux hopper 4 mounted on a carriage 3 traveling along a rail 2. Is. According to this welding device 1, when replenishing the flux to the flux hopper 4, it is not necessary for an operator to carry a packaging bag of the flux to climb to a high place, and welding work can be safely and smoothly advanced. Is.

A stand 6 fixed to a predetermined position of the carriage 3.
An elevating bracket 7 is attached to the elevating bracket 7, and a traversing boom 8 is attached to the elevating bracket 7. At the tip of the traverse boom 8, a copying tool 9a, a spray nozzle 9b for spraying flux, a welding torch 9c, and a recovery nozzle 9d for recovering the sprayed flux are arranged in a predetermined order, respectively. The welding head 9 is composed of 9a to 9d. A flux hopper 4 for supplying flux to the spray nozzle 9b via a hose (not shown) is mounted above the mounting position of the traverse boom 8 on the lifting bracket 7. Further, above the flux hopper 4, a recovery hopper 10 that accommodates the flux recovered by the recovery nozzle 9d is attached. In the trolley 3 configured as described above,
A member to be welded (not shown) is arranged in parallel with the rail 2, and the elevating bracket 7 and the traverse boom 8 are driven so that the welding head 9 faces the groove position formed on the member to be welded or a predetermined welding line. It is possible to weld the members to be welded by forming an arc by the welding torch 9c while dispersing the flux from 9b and moving the carriage 3 at a predetermined welding speed.

The chute 5 is provided within the traveling range of the truck 3 and at a position corresponding to the flux hopper 4. In the present embodiment, the carriage 3 has one end 2a of the rail 2.
And when the flux hopper 4 is at the lowest position, the charging gutter 5a of the chute 5 is arranged so as to be located on the flux hopper 4. Therefore, the stand 11 is installed near the end 2a of the rail 2, and the chute 5 is fixed to the upper portion of the stand 11. The container 12 is installed on the floor 13, and the height of the upper end opening 12a of the container 12 is set to a size that allows an operator to carry in a flux bag. Connect the chute 5 and the container 12 to connect the container 12
A conveyor 14 is provided to convey the flux thrown into the chute 5 to the chute 5. As the conveyor 14, it is possible to use a conveyor such as a belt conveyor, a screw conveyor and a bucket conveyor, and the chute 5 and the container 12
Conveyor determined by height difference and horizontal distance
It is possible to select the most suitable one according to the conditions such as the inclination angle of 14 and the transport distance. In this embodiment, the conveyor 14
A screw conveyor is used as the motor 14a
Is driven so that the flux stored in the container 12 can be conveyed to the chute 5.

In this embodiment, a storage amount detection sensor for detecting the amount of flux stored in the flux hopper 4.
15 are provided. The storage amount detection sensor 15 detects the level of the flux stored in the flux hopper 4 and generates a signal, and a detector 15a that generates a signal when the level exceeds a certain level and a level below the certain level. And a detector 15b that generates a signal when However, the storage amount detection sensor 15 is not limited to the one that detects the level, and may be a sensor that detects the weight and generates a signal. Further, in this embodiment, a position detection sensor 16 is provided which detects that the flux hopper 4 is at a position corresponding to the chute 5. This position detection sensor 16 is provided at the end 2 of the rail 2.
It is composed of a micro switch 16a provided in a and a dock 16b provided in the carriage 3, and when the flux hopper 4 reaches a position facing the throwing gutter 5a of the chute 5, the dock 16b comes into contact with the micro switch 16a. It is configured to be able to.

In the welding device 1 constructed as described above, when the flux stored in the flux hopper 4 decreases below a certain level, the storage amount detecting sensor 15 generates a reduction signal. When supplying flux to the flux hopper 4 in response to the generation of this signal, the truck 3
When the rail is moved to the end 2a of the rail 2, the dock 16b comes into contact with the microswitch 16a and the flux hopper 4
Is detected to be in a position facing the input gutter 5a of the chute 5, and the carriage 3 is stopped. When the signals of the storage amount detection sensor 15 and the position detection sensor 16 are generated at the same time as described above, the motor of the conveyor 14 is responsive to these signals.
14a operates to drive the conveyor 14. As a result, the flux introduced into the container 12 is conveyed to the chute 5 and introduced into the flux hopper 4 from the introduction gutter 5a. As described above, it is possible to supplement the flux in the flux hopper 4. Then, the flux is replenished to the flux hopper 4, and when the level of the flux reaches a certain level or more, a signal is generated from the detector 15a to stop the rotation of the motor 14a and complete the replenishment.

In the embodiment described above, the chute 5 is
Although it is fixedly arranged at 11, it may be fixed to, for example, a girder for fixing a pillar in a building of a welding factory or a rail of a traveling crane without providing a special stand.

[0016]

As described in detail above, according to the welding apparatus of the present invention, when the flux hopper mounted on the truck reaches the position corresponding to the chute, the flux introduced into the container is conveyed to the chute by the conveyor. It can be transported and put into the flux hopper via a chute. Therefore, the flux can be replenished to the flux hopper without relying on human power, so that the labor of the worker can be reduced and the waste of time can be prevented.

The amount of flux stored in the flux hopper is detected by the stored amount detecting means, and the fact that the flux hopper is in a position corresponding to the chute is detected by the position detecting means. When they occur at the same time, by operating the conveyor, the flux introduced into the container can be automatically conveyed to the chute and introduced into the flux hopper from the chute.

[Brief description of drawings]

FIG. 1 is a front view of a welding device.

FIG. 2 is a plan view of a welding device.

[Explanation of symbols]

1 is a welding device, 2 is a rail, 3 is a trolley, 4 is a flux hopper, 5 is a chute, 6 is a stand, 7 is a lifting bracket, 8 is a traverse boom, 9 is a welding head, 9a is a copying tool, and 9b is a spray nozzle. , 9c is a welding torch, 9d is a recovery nozzle, 10 is a recovery hopper, 11 is a stand, 12 is a container,
Reference numeral 14 is a conveyor, 14a is a motor, 15 is a storage amount detection sensor, and 16 is a position detection sensor.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kaoru Miyamae 1-19-10 Ueno Taito-ku, Tokyo Komai Iron Works Co., Ltd.

Claims (2)

[Claims] 1. A welding device for welding a member to be welded by mounting a submerged welding machine on a truck traveling along a rail, the welding apparatus being in the traveling range of the truck and corresponding to a flux hopper mounted on the truck. A chute that is installed separately from the truck at a position to supply the flux to the flux hopper, a container that is installed on the floor and that stores the flux, and a flux that is provided by connecting the chute and the container to each other. A welding device, comprising: a conveyor that conveys the chute. 2. A storage amount detecting means for detecting the amount of the flux stored in the flux hopper, and a position detecting means for detecting that the flux hopper is in a position corresponding to the chute, the storage amount detecting means. When it is detected that the flux stored in the flux hopper is less than a certain amount and the position detecting means detects that the flux hopper is in a position corresponding to the chute, the conveyor is operated to supply the flux to the flux hopper. The welding device according to claim 1, wherein the welding device is configured to perform.