JPH059769U - Arc welder - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an arc welder that can inspect and replace the filter from the front of the welding power source. [Structure] A torch 2 connected to the front surface of the welding power source 1, a pump 4 for circulating cooling water stored in a water tank 3, an internal power supply water hose 5 through which the cooling water passes, a water hose 6 for supplying water, and floating substances are removed. Filter 7, sensor 8 for detecting the flow of cooling water, return water hose 9 for guiding the cooling water into the water tank 3.
Etc. Then, the cooling water flows through the circulation path indicated by the arrow B to be heat-exchanged, and cooling and heating are repeated.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an arc welder that cools a torch with cooling water.

[0002]

[Prior Art]

 In recent years, arc welders have been widely used for welding steel plates and the like.

Conventionally, this type of arc welder has a structure as shown in FIG. That is, the torch 2 connected to the front of the welding power source 1, the pump 4 for circulating the cooling water stored in the water tank 3, the internal water hose 5 through which the cooling water passes, the water hose for water supply 6, and the floating substances are removed. It comprises a filter 7, a sensor 8 for detecting the flow of cooling water, a return water hose 9 for guiding the cooling water into the tank, and the like. The cooling water is heat-exchanged by the circulation path shown by arrow A, and cooling and heating are repeated. The filter 7 needs to be provided at the inlet side of the sensor 8 because a failure caused by circulation of floating objects through the sensor 8 occurs, and therefore the filter 7 is provided at the rear of the welding power source 1.

The operation of the arc welding machine configured as described above will be described below. When the pump 4 is driven, the cooling water stored in the water tank 3 flows through the filter 7 and the sensor 8 as shown by the arrow A, cools the torch 2, and returns from the return water water hose 9 to the water tank 3.

[0005]

[Problems to be solved by the device]

 However, in the above conventional configuration, since the filter 7 is provided at the rear of the welding power source 1, it is not possible to inspect and replace the filter 7 from the front side, and since the rear side is generally narrow, check when the filter 7 is clogged. There was a drawback that it was difficult to exchange.

The present invention solves the above conventional problems, and an object of the present invention is to provide an arc welder capable of inspecting and replacing a filter from the front of a welding power source.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention comprises a torch connected to a welding power source, a pump for circulating cooling water for cooling the torch, and a suspended matter provided in a circulation path through which the cooling water passes. A filter for removal and a sensor for detecting the flow of the cooling water are provided, the sensor is provided on the suction side of the pump and at the rear of the welding power source, and the filter is provided at the front of the welding power source. Have a configuration.

[0008]

[Action]

 In the above configuration, the sensor is provided on the suction side of the pump and at the rear of the welding power source, and the filter is provided at the front of the welding power source, so inspection and replacement can be performed from the front of the welding power source.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to FIG. In this embodiment, the same components as those shown in the above-mentioned conventional example are designated by the same reference numerals, and the description thereof will be omitted. The characteristic structure of this embodiment is that the flow of the circulation path described in the conventional example is reversed and the filter is arranged in the front part of the welding power source. That is, the sensor 8 is provided on the suction side of the pump 4, the filter 7 is provided at the front of the welding power source 1, and the circulation path is as shown by the arrow B.

The operation of the arc welding machine configured as described above will be described. That is, when the pump 4 is driven, the cooling water stored in the water tank 3 flows through the return water hose 9, the filter 7 and the sensor 8 as shown by an arrow B to cool the torch 2 and return to the inside of the return power source. Return from the water hose 5 to the water tank 3. The suspended matter generated by the circulation of the cooling water is removed by the filter 7 provided on the inlet side of the sensor 8.

[0011]

As is apparent from the above embodiments, the arc welding machine of the present invention has a torch connected to a welding power source, a pump for circulating cooling water for cooling the torch, and the cooling water passing therethrough. A filter provided in the circulation path for removing suspended matter and a sensor for detecting the flow of the cooling water are provided.The sensor is provided at the suction side of the pump and at the rear of the welding power source, and the filter is provided as described above. It is provided at the front of the welding power source. With this configuration, the filter can be inspected and replaced from the front of the welding power source, improving safety and workability.

[Brief description of drawings]

FIG. 1 is a side view of an arc welding machine according to an embodiment of the present invention.

FIG. 2 is a side view of a conventional arc welder.

[Explanation of symbols]

 1 Welding power supply 2 Torch 3 Water tank 4 Circulating pump 5 Water hose inside power supply 6 Water hose for water supply 7 Filter 8 Sensor

Claims (1)

[Claims for utility model registration] 1. A torch connected to a welding power source, a pump for circulating cooling water for cooling the torch, and a suspended matter provided in a circulation path through which the cooling water passes. A filter for removing and a sensor for detecting the flow of the cooling water are provided,
An arc welder in which the sensor is provided on the suction side of the pump and at the rear of the welding power source, and the filter is provided at the front of the welding power source.