KR101590577B1

KR101590577B1 - cooling water distributor for welding gun

Info

Publication number: KR101590577B1
Application number: KR1020140129440A
Authority: KR
Inventors: 이승해; 송두현; 이주현
Original assignee: 한국티앤엠(주); 이승해
Priority date: 2014-09-26
Filing date: 2014-09-26
Publication date: 2016-02-01

Abstract

The present invention relates to a cooling water distributor for a welding gun. According to the present invention, in a cooling water distributor installed in a side of a welding gun supplying cooling water to reduce heat generation of a welding part and a transformer, the cooling water comprises: a body coupled to a side of the welding gun, has a cooling water supplying pipe and a discharging pipe on an upper part, and is equipped with a plurality of cooling water distributing pipes and cooling water collecting pipes on a lower part; and an operating part coupled to the body, synchronously opening and closing a plurality of cooling water blocking valves respectively disposed on the plurality of cooling water distributing pipes and cooling water collecting pipes. The operating part comprises: a cylinder coupled to the body; a slide bar coupled to an end part of the cylinder; and a plurality of hinge plates of which one end is coupled by being separated at a distance along a longitudinal direction of the slide bar of which an other end is coupled to the plurality of cooling water blocking valves.

Description

[0001] The present invention relates to a cooling water distributor for welding gun,

The present invention relates to a cooling water distributor for a welding gun. More specifically, the present invention relates to a cooling water distributor for a welding gun, The present invention relates to a cooling water distributor for a coffee machine.

As a method of fusing two panels in a body assembly process, spot resistance welding is often used. Spot resistance welding generates high heat in the welding gun in such a manner that it contacts the surface of the panel of the vehicle while applying a pressing force. In order to cool the high heat generated by the welding gun, the welding gun is equipped with a cooling water distributor which supplies cooling water to the heat generating part.

The cooling water distributor 10 includes a body 12, a cooling water supply pipe 14 and a cooling water discharge pipe 16 provided at an upper portion of the body 12, a body 12, A plurality of cooling water distributing pipes 18 and a plurality of cooling water recovering pipes 20 provided at a lower portion of the cooling water distributing pipe 18.

However, the above-mentioned conventional cooling water distributor includes the main valves 14a and 16a provided respectively in the cooling water supply pipe 14 and the cooling water discharge pipe 16 for replacing the fixed tip or movable tip coupled to the shank end of the welding gun, The residual cooling water remaining in the body 12 of the cooling water distributor flows out to the inside of the work site through the tip of the shank.

In addition, there is a problem such as deterioration of quality due to breakdown of equipment and rust due to outflow of cooling water.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a welding gun capable of quickly shutting off the supply of cooling water upon replacement of a fixing tip or movable tip coupled to a shank tip of a welding gun, And it is an object of the present invention to provide a cooling water distributor of a welding gun which is capable of preventing outflow to the outside through a shank tip.

According to an aspect of the present invention, there is provided a cooling water distributor provided at one side of a welding gun for supplying cooling water to reduce heat generation of a welding part and a transformer, A body having a cooling water supply pipe and a discharge pipe at an upper portion thereof and a plurality of cooling water distribution pipes and a cooling water recovery pipe at a lower portion thereof and a body having a plurality of cooling water discharge pipes connected to the body, The slide bar is coupled to an end of the cylinder. The slide bar is coupled to the slide bar at an equal distance along the longitudinal direction of the slide bar, And the other end is formed of a plurality of hinge plates coupled to the plurality of cooling water shutoff valves And a cooling water distributor for the welding gun.

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And a guide groove for guiding slide movement of the slide bar is formed on the body.

According to the present invention having the above-described configuration, when the fixed tip or movable tip coupled to the shank tip of the welding gun is replaced, the supply of cooling water is interrupted quickly, and the remaining cooling water remaining inside the body of the cooling water distributor flows It is possible to prevent leakage to the outside.

1 is a perspective view showing a conventional cooling water distributor;
2 is a perspective view of a cooling water distributor of a welding gun according to an embodiment of the present invention;
3 is a cross-sectional view of a coolant dispenser of a welding gun according to an embodiment of the invention.
4 is a side view of a coolant dispenser of a weld gun in accordance with an embodiment of the present invention.
5 is a use state view of a cooling water distributor of a welding gun according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 2 is a perspective view of a cooling water distributor of a welding gun according to an embodiment of the present invention, FIG. 3 is a cross-sectional view of a cooling water distributor of a welding gun according to an embodiment of the present invention, 5 is a use state diagram of a cooling water distributor of a welding gun according to an embodiment of the present invention.

2 to 5, a cooling water distributor 100 of a welding gun according to an embodiment of the present invention is provided at one side of a welding gun to supply cooling water to reduce heat of a welding part and a transformer, And a driving unit 120.

The body 110 is coupled to one side of the welding gun. A cooling water supply pipe 112 and a cooling water discharge pipe 114 are provided at equal distances from the upper portion of the body 110 and a plurality of cooling water distribution pipes 116 and a cooling water return pipe 118 are provided at a lower portion.

A guide groove 110a is formed in the body 110 in the longitudinal direction so that the slide bar 124 to be described later slides in the longitudinal direction of the body 110 by the cylinder 122 Guide.

The driving unit 120 is coupled to the body 110 to simultaneously open and close a plurality of cooling water distribution pipes 116 and a plurality of cooling water shutoff valves 119 provided in the cooling water return pipe 118.

The driving unit 120 includes a cylinder 122 coupled to the body 110, a slide bar 124 coupled to an end of the cylinder 122, And a plurality of hinge plates 126 coupled by a hinge pin 124a and the other end coupled to the plurality of cooling water shutoff valves 119. [

A solenoid valve 128 is provided at an upper portion of the cylinder 122 to provide a driving force for operating the cylinder 122.

It is preferable that an elongated hole 126a is formed at the end of the hinge plate 126 coupled to the slide bar 124. The elongated hole 126a is formed in a state where the slide bar 124 is slid by the operation of the cylinder 122 So that the hinge plate 126 can smoothly change directions.

Hereinafter, the operation of the cooling water distributor of the welding gun according to one embodiment of the present invention having the above-described structure will be described.

When the movable tip and the fixed tip coupled to the shank tip of the welding gun are to be replaced, the main valve 112a and 114a provided in the cooling water supply pipe 112 and the cooling water discharge pipe 114 are operated to be installed on the upper portion of the body 110 The cooling water supply pipe 112 and the cooling water discharge pipe 114 are closed.

Thereafter, when the cylinder 122 is operated, the plurality of cooling water distribution pipes 116 and the cooling water return pipe 118 provided at the lower portion of the body 110 are closed by the cooling water shutoff valve 119.

That is, when the slide bar 124 slides along the longitudinal direction of the body 110, the end of the hinge plate 126 coupled to the cooling water shutoff valve 119 is rotated about the cooling water shutoff valve 119, The internal flow path of the cooling water distribution pipe 116 and the cooling water return pipe 118 is closed at the same time.

Then, the operator can replace the movable tip and the fixed tip to be replaced. At this time, even if the operator removes the movable tip and the fixing tip from the shank tip to replace the movable tip and the fixed tip, the operator remains inside the cooling water supply line between the plural cooling water distribution pipes 116 and the cooling water return pipe 118 and the shank tip The remaining cooling water is not discharged to the outside through the shank tip due to the vacuum generated due to the pressure difference between the inside and the outside of the cooling water supply line.

Therefore, according to the cooling water distributor of the welding gun according to the embodiment of the present invention, when the fixing tip or the movable tip coupled to the shank tip of the welding gun is replaced, the supply of the cooling water is cut off promptly, There is an effect that the remaining cooling water can be prevented from flowing out to the outside through the tip of the shank.

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention It can be understood that it is possible.

110; Body
110a; Guide groove
112; Cooling water supply pipe
114; Cooling water discharge pipe
116; Cooling water distribution pipe
118; Cooling water recovery pipe
119; Cooling water shutoff valve
120; The driving unit
122; cylinder
124; Slide bar
124a; Hinge pin
126; Hinge plate
126a; Long hole
128; Solenoid valve

Claims

1. A cooling water distributor provided at one side of a welding gun for supplying cooling water for reducing heat generation of a welding portion and a transformer,
A body coupled to one side of the welding gun and having a cooling water supply pipe and a discharge pipe at an upper portion thereof and a plurality of cooling water distribution pipes and a cooling water recovery pipe at a lower portion thereof; And
And a driving unit coupled to the body for simultaneously opening and closing a plurality of cooling water shutoff valves respectively provided in the plurality of cooling water distribution pipes and the cooling water recovery pipe,
The driving unit includes:
A slide bar coupled to an end of the cylinder, the slide bar having one end coupled to the slide bar at equal distances along the longitudinal direction of the slide bar and the other end coupled to the plurality of hinge plates And a cooling water distributor for the welding gun.

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The method according to claim 1,
Wherein a guide groove for guiding slide movement of the slide bar is formed in the body.