KR101400373B1 - Refrigerant pipe welding device of compressor cap for air conditioning system - Google Patents

Abstract

The present invention relates to a refrigerant pipe welding device of a compressor cap for an air conditioning system which can improve the productivity and the workability, as well as saving labor costs, by welding a refrigerant pipe sleeve to an upper cap not through manual welding of a worker, but through automatic welding. The welding device capable of welding the refrigerant pipe sleeve to a refrigerant pipe hole of the upper cap of the compressor includes an upper cap seating member rotated by a driving unit (38) to rotate an upper cap which is placed on the upper cap seating member; a vertical support spaced apart from one side of the upper cap seating member and vertically installed; a movable support installed to be able to vertically move by a moving unit on the vertical support; a welding torch installed at one side of the movable support by a torch bracket; an electrode portion connected to the movable support by an electrode bracket and having a metal electrode positioned adjacent to the welding torch; and a table for installing the upper cap seating member and the vertical support thereon.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerant pipe welding apparatus,

The present invention relates to a method for manufacturing a refrigerant tube for a cooling / heating apparatus for an air conditioner, which can reduce labor costs and improve productivity and workability by welding a refrigerant tube to a top cap of a compressor of an air conditioner through automatic welding, To a welding apparatus.

In general, an air conditioner is a cooling / heating system that sucks hot air in a room and heat-exchanges the refrigerant with low-temperature refrigerant, and then discharges the refrigerant into the room, thereby cooling the room or heating the room by the opposite action. - a condenser - an expansion valve - an evaporator to form a series of refrigerant cycles.

In recent years, in order to improve the quality of life and to meet the needs of customers, air purification function to suck polluted air in the room outside the air conditioner and filter it into clean air and re-input it into the room, And dehumidifying function for re-inputting.

The air conditioner mainly includes an outdoor side (also referred to as an 'outdoor side' or a 'heat radiation side') installed in an outdoor space and an indoor side (also referred to as an 'indoor side' or ' A condenser (second heat exchanger) and a compressor are installed on the outdoor side, and an evaporator (first heat exchanger) is installed on the indoor side.

The air conditioner can be broadly divided into a separate type air conditioner in which the outdoor side and the indoor side are separated from each other, and an integral type air conditioner in which the outdoor side and the indoor side are integrally installed. In consideration of the installation space and noise, The trend is favored.

In this air conditioner, that is, the upper cap of the compressor of the air conditioner, a refrigerant pipe is mounted.

1 and 2, a mounting structure of a conventional refrigerant tube includes a fixing bracket 203 having an assembling end 204 formed in an assembling hole 101 formed in a cover 100 of a compressor, The fixing bracket 203 is coupled to the cover 100 through welding and the refrigerant discharge tube 200 is inserted into the insertion hole 205 of the fixing bracket 203 and welded.

The operator manually performs the welding operation of the fixing bracket 203 welded to the cover 100. The manual welding by such an operator is irregular in the welding area and the quality is lowered. Or welding work is performed by twisting the arm, so that the workability is not good and harmful substances generated during the welding work are drawn into the operator's body through breathing.

In addition, there is a problem in that the work efficiency is lowered because the work amount is reduced due to manual welding, and the labor cost is increased.

Patent Document 1: Japanese Patent Application Laid-Open No. 2001-0054066 (2001.07.02, Welding Structure of Discharge Pipe of Hermetic Compressor) Patent Document 2: Open Utility Model Publication No. 2000-0020066 (November 25, 2000, refrigerant discharge pipe of compressor)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide a method of manufacturing a metal pipe, in which a welding torch and a metal electrode are fixed and then an upper cap is placed on an upper- The welding torch and the metal electrode can be moved up and down on the moving support as well as moving up and down on the moving support, so that the welding operation can be easily performed by applying the welding torch and the metal electrode to the upper cap of various sizes. And the upper cap seat is rotated at a high speed so that the appearance of the welded portion can be made more beautiful.

According to an aspect of the present invention, there is provided a welding apparatus for welding a refrigerant tube or a refrigerant tube sleeve to a refrigerant tube of a compressor upper cap of an air conditioner, the upper cap being seated on the upper side, A vertical support stand vertically installed to be spaced apart from the one side of the upper cab seating stand and a movable support vertically movable by the moving means in the vertical support object; A welding torch provided on one side of the movable support through a torch bracket; an electrode part connected to the moving support by an electrode bracket and having a metal electrode positioned in the vicinity of the welding torch; And a table for mounting the support.

A movable block which is coupled to the vertical support so as to be movable up and down and whose one side is connected to the moving means is installed on the other side of the movable support, and the moving means includes a cylinder tube fixed to the upper portion of the vertical support, And a cylinder rod connected to one side of the upper portion of the moving block and moving up and down the movement support while being drawn in and out of the cylinder tube.

And the movable block is fixedly coupled to the movable support by bolts so as to be detachable from the movable and movable supports on the movable support.

And the torch bracket and the electrode bracket are coupled and fixed to the movable support by bolts so as to be movable on the movable support.

The electrode bracket includes a first bracket having one side connected to the movable support and a rectangular position-adjusting hole formed on the other side of the movable bracket, a fixing bolt having one side fixed to the position adjusting hole of the first bracket, And a second bracket coupled to the second bracket.

The upper surface of the upper cab seat is provided with a fitting step to prevent the upper cap from being pushed into the upper surface of the upper cab seat, and the upper surface of the upper cap seating surface is supported by the refrigerant tube And a fitting protrusion is formed on the upper portion of the refrigerant pipe or the refrigerant tube sleeve so that the lower end of the refrigerant pipe or the cold inner sleeve is fitted.

When the refrigerant tube or the refrigerant tube sleeve is welded to one side of the upper portion of the upper cap, the upper surface of the upper portion seat is formed as an inclined surface inclined downward from one side to the other side, and the fitting projection .

According to the refrigerant pipe welding apparatus of the upper cap of the compressor for an air conditioner having the above-described structure, the welding operation is automatically performed while rotating the upper cap seat in a state where the welding torch and the metal electrode are fixed, The tube sleeve can be easily welded, the labor cost due to the conventional manual welding can be reduced, the refrigerant tube or the refrigerant tube sleeve can be easily welded to the upper cap of various sizes having different sizes, The welding state is uniform and the appearance is good.

1 and 2 are views showing a mounting structure of a refrigerant discharge tube mounted on a conventional upper cap,
3 is a perspective view showing a refrigerant pipe welding apparatus of a compressor upper cap for an air conditioner according to the present invention,
FIG. 4 is a structural view of a vertical support and a movable support in an apparatus for welding a refrigerant tube in a compressor upper cap for an air conditioner according to the present invention,
FIG. 5 is a schematic view illustrating a coupling structure of a moving support and a welding torch in a refrigerant tube welding apparatus of a compressor upper cap for an air conditioner according to the present invention,
FIG. 6 is a structural view illustrating a connection between a movable support and an electrode unit in a refrigerant pipe welding apparatus of a compressor upper cap for an air conditioner according to the present invention,
FIG. 7 is a structural view illustrating an electrode unit and an electrode bracket in an apparatus for welding a refrigerant tube in an upper cap of a compressor for an air conditioner according to the present invention,
8 is a cross-sectional view of a top cap mounted on an upper cap seat of a refrigerant pipe welding apparatus for a compressor upper cap according to the present invention,
9 is a view illustrating a state of use of the refrigerant tube welding apparatus in the upper cap of the compressor for an air conditioner according to the present invention.
10 is a perspective view of an upper cap welded to a refrigerant tube sleeve according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, an apparatus for welding a refrigerant tube of a compressor upper cap for a cooling and heating apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 to 10, an apparatus for welding a refrigerant tube in a compressor upper cap according to the present invention includes a refrigerant tube 20 or a refrigerant tube 20 in a refrigerant tube 12 of a compressor upper cap 10 of an air- An apparatus for welding a tube sleeve (25) to an upper cap (10), comprising an upper cap seat (30), a vertical support (40), a movement support (50), a welding torch An electrode unit 60, and a table 70. [

When the refrigerant tube sleeve 25 is coupled to the refrigerant tube 20 for directly welding or reinforcing the refrigerant tube 20 to the upper cap 10, the refrigerant tube sleeve 25 is inserted into the upper cap 10, The refrigerant tube 20 is welded to the refrigerant tube sleeve 25 after welding the refrigerant tube sleeve 25 to the upper cap 10 for reinforcement. The refrigerant tube sleeve 25 is shown as being welded.

The upper cap seating part 30 is configured to seat the upper cap 10 to be welded and the upper cap 10 is mounted on the upper part of the upper cap seating part 30, The upper cab seat 30 is provided to be rotatably operated by the driving means 38.

It is a matter of course that the upper cap seat 30 and the vertical support 40 are installed on a table 70 having a predetermined width. The table 70 is only required for the installation of the upper cap seating stand 30 and the vertical support stand 40 and is not limited to the shape and structure thereof. Anything with a shape or structure that can be supported is available.

The driving unit 38 may be a motor and a plurality of gears. The driving unit 38 may be connected to the upper cab seating unit 30 by a direct drive shaft, or may transmit power to a belt, a chain, (30) can be rotated.

The upper cap seating part 30 of the present invention is formed into a circular shape so that the upper cap 10 is drawn into the inside of the upper cap 10 to block the movement of the upper cap 10 .

At this time, a fitting step 32 may be formed on the upper surface of the upper cap seat 30 so that the upper cap 10 is inserted.

Due to the formation of the fitting step 32, the flow of the upper cap 10 is blocked, thereby preventing the flow of the upper cap 10, which may occur during the welding process, .

A plurality of the fitting steps 32 may be formed on the upper cap seat 30 with different diameters.

In addition, a fitting protrusion 36 may be formed on one side of the upper surface of the upper cap seat 30 to support and vertically weld the refrigerant tube sleeve 25 to be welded to the refrigerant tube 12.

The fitting protrusion 36 is formed to fit inside the refrigerant tube sleeve 25 and a seating jaw 37 is fitted to the lower portion of the fitting protrusion 36 so that the lower end of the refrigerant tube sleeve 25 is fitted. Respectively.

The formation of the fitting protrusion 36 prevents the refrigerant tube sleeve 25 from flowing during the welding process of the refrigerant tube sleeve 25 and prevents the refrigerant tube sleeve 25 from tilting to one side .

The vertical support 40 and the movement support 50 are provided to weld the refrigerant tube sleeve 25 to the upper cap 10. The vertical support 40 is installed on the upper cap seat 30, And a movable support 50 is provided on the vertical support 40 so as to be movable up and down by a moving means 45. [

A movable block 42 is provided at the other side of the movable support 50 for vertically moving the movable support 50. The movable block 42 is connected to the movable unit 45 with one side thereof being movably coupled to the vertical support 40, ) Is installed.

In the drawing, the vertical support rods 40 are provided at a distance from each other, and a moving block 42 is provided so that both sides of the vertical support rods 40 pass through the vertical support rods 40, Respectively.

The moving means 45 may be a hydraulic cylinder, for example.

The cylinder block 46 is connected to an upper portion of the moving block 42 and is inserted into and withdrawn from the cylinder pipe 46 to move the movement support 50 And a cylinder rod 47 for vertically moving.

The movable support 50 is detachably coupled to the moving block 42 so that the position of the movable support 50 can be changed.

That is, the moving block 42 is fixed to the movable support 50 by bolts so as to be detachable from the movable support 50 for positional movement and angle adjustment on the movable support 50.

The welding torch 55 is installed on one side of the movable support 50 through a torch bracket 57. The refrigerant tube sleeve welding of the present invention is welded by a known argon welding method.

The electrode unit 60 is connected to the movable support 50 by an electrode bracket 65 and the metal electrode 62 is disposed in the vicinity of the welding torch 55.

Since the argon welding using the welding torch 55 and the electrode portion 60 is a well-known welding method, it will not be described here.

5 and 6, the torch bracket 57 and the electrode bracket 65 are coupled to the movable support 50 by means of bolts so as to be movable and adjustable in angle on the movable support 50, Is fixed.

The torch bracket 57 includes a first torch bracket 58a bolted to the movement support 50 and a second torch bracket 58b hinged to the first torch bracket 58a by a torch bracket shaft 59, And a second torch bracket 58b coupled to the torch 55.

Therefore, it is possible to adjust the angle of the movable support 50 on the movement support and the movable support through the first torch bracket 58a bolted to the movement support 50, The angle of the second torch bracket 58b can be adjusted by rotating the second torch bracket 58b with respect to the first torch bracket.

The angle adjustment by the first torch bracket and the angle adjustment by the second torch bracket are angle-adjusted in a direction crossing each other.

The electrode bracket 65 is provided for mounting the electrode unit 60 and the metal electrode 62 in the vicinity of the welding torch 55 and is composed of a plurality of brackets.

In the accompanying drawings, two brackets are used.

Specifically, the electrode bracket 65 includes a first bracket 66 having one side connected to the movement support 50 and the other side having a rectangular positioning hole 66a in the longitudinal direction, and a first bracket 66 And a second bracket 67 having one side fixed to the position adjusting hole 66a and the other side of which is coupled with the electrode unit 60.

The position of the electrode unit 60 can be adjusted by moving and fixing the second bracket 67 along the position adjusting hole 66a of the first bracket 66. [

At this time, a third bracket 69 may be provided between the second bracket 67 and the electrode unit 60 so that the angle of the electrode unit 60 can be adjusted.

The third bracket 69 is bolted to the second bracket 67 by an angle adjusting bolt 69a so that the angle of the electrode unit 60 can be adjusted.

Therefore, the electrode unit 60 can be easily positioned at the connection portion between the upper cap 10 and the refrigerant tube sleeve 25 through the second bracket 67, The metal electrode 62 can easily be brought into close contact with the torch 55.

In this case, the upper surface of the upper cap seat 30 is welded to the upper surface of the upper surface of the inclined surface 34 ).

That is, the top surface of the upper cab seat 30 is formed as an inclined surface 34 inclined downward from one side to the other side, and the fitting protrusion 36 is formed on an upper part of the inclined surface 34.

The inclined surface 34 is formed in order to secure a welding space when the refrigerant tube sleeve 25 is welded to one side of the upper cap 10.

That is, in the case of being horizontally disposed, it is difficult to accurately position the welding torch 55 and the metal electrode 62 of the electrode unit 60 on the welding part, and the welding angle is small, The upper surface of the upper cap 10 is formed as an inclined surface.

The upper cap seat 30 is configured to rotate the fitting projection 36 with the rotation axis.

The upper cap 10 is placed on the upper cap seat 30, and then the refrigerant pipe sleeve 12 is welded to the upper cap 10. In this case, The refrigerant tube sleeve 25 is inserted. The welding torch 55 and the electrode unit 60 are coupled to the movable support 50 via the torch bracket 57 and the electrode bracket 65 to adjust the position and angle of the electrode unit 60 A metal electrode (62) is provided closely to the welding torch (55).

Thereafter, the moving means 45 is operated to move the movable support 50 downward so that the welding torch and the metal electrode are positioned on the weld between the upper cap 10 and the refrigerant tube sleeve 25. If the welding torch and the metal electrode are slightly separated from the welding portion, the fixing state of the torch bracket and the electrode bracket coupled to the moving support 50 is released, and the welding torch and the metal electrode are positioned close to the welding portion Retighten the unfastened torch bracket and electrode bracket.

In this state, the argon welding operation may be performed while rotating the upper cap seat 30 by driving the driving means 38. After the welding, the welding torch and the electrode portion may be raised so as to be separated from the upper cap as much as possible, and then the upper cap may be separated from the upper cap seating table 30. [

As described above, the present invention is advantageous in that the welding operation is performed through a separate welding device rather than by manual operation of the operator, so that the welding operation can be conveniently and easily completed, as well as the welding is uniformly performed, have.

10: upper cap 12: refrigerant tube
20: refrigerant tube 25: refrigerant tube sleeve
30: upper cap seat 32: clamping step
34: inclined surface 36:
37: mounting jaw 38: driving means
40: vertical support
42: moving block 45: moving means
46: cylinder tube 47: cylinder rod
50: moving support 55: welding torch
57: torch bracket 58a: first torch bracket
58b: second torch bracket 60:
62: metal electrode 65: electrode bracket
66: first bracket 66a: positioning hole
67: second bracket 68: fastening bolt
69: Third bracket 69a: Angle adjusting bolt
70: Shelf

Claims (8)

A welding apparatus for welding a refrigerant tube (20) or a refrigerant tube sleeve (25) to a refrigerant tube (12) of a compressor upper cap (10) of an air conditioner,
An upper cap seat 30 for rotating the upper cap 10 while the upper cap 10 is seated on the upper portion and rotated by the driving means 38,
A vertical support 40 vertically installed to be spaced apart from one side of the upper cab seat 30,
A movable support 50 mounted on the vertical support 40 so as to be movable up and down by a moving means 45,
A welding torch 55 provided on one side of the movable support 50 via a torch bracket 57,
An electrode part 60 connected to the movable support 50 by an electrode bracket 65 and having a metal electrode 62 positioned near the welding torch 55,
And a table (70) for installing the upper cap seat (30) and the vertical support rods (40).
The method according to claim 1,
A movable block 42 coupled to the vertical support 40 so as to be movable up and down and connected to the moving means 45 at an upper side thereof is provided on the other side of the movable support 50,
The moving means 45 includes a cylinder pipe 46 fixed to the upper portion of the vertical support 40 and a cylinder block 46 connected to one side of the upper portion of the moving block 42 and being drawn into the cylinder pipe 46, And a cylinder rod (47) for moving the movable support (50) up and down.
3. The method of claim 2,
Characterized in that the moving block (42) is fixed to the movable support (50) by a bolt so as to be detachable from the movable and movable support (50) on the movable support (50) Refrigerant tube welding device.
The method according to claim 1,
Wherein the torch bracket (57) and the electrode bracket (65) are fixedly coupled to the movable support (50) by bolts so as to be able to move and adjust the angle on the movable support (50) Device for welding refrigerant tube in cap.
The method according to claim 1,
The torch bracket 57 includes a first torch bracket 58a coupled to the movement support 50 and a second torch bracket 58a hingedly connected to the first torch bracket 58a by a torch bracket shaft 59, And a second torch bracket (58b) coupled to the second tube (55).
The method according to claim 1,
The electrode bracket 65 includes a first bracket 66 having one side connected to the movable support 50 and a rectangular positioning hole 66a formed on the other side of the electrode bracket 65, The other end of the second bracket 69 is connected to the second bracket 69 by an angle adjusting shaft 69a while the other end of the second bracket 69 is connected to the adjusting hole 66a by a fixing bolt 68, 67). The apparatus for welding a refrigerant tube in an upper cap of a compressor for an air conditioner.
The method according to claim 1,
A fitting step 32 is formed on the upper surface of the upper cap seat 30 so as to prevent the upper cap 10 from being inserted and flow,
The upper surface of the upper cap seat 30 is provided with a coolant pipe 20 through which the coolant pipe 20 or the coolant pipe sleeve 25 welded and welded to the coolant pipe 12, And a fitting protrusion (36) formed with a seating step (37) for receiving a lower end of the refrigerant pipe (20) or the refrigerant pipe sleeve (25) fitted into the lower part of the refrigerant pipe sleeve (25) Apparatus for compressor Apparatus for welding refrigerant tube in upper cap.
8. The method of claim 7,
When the refrigerant tube 20 or the refrigerant tube sleeve 25 is welded to one side of the upper cap 10,
Wherein the upper surface of the upper cab seat (30) is formed with an inclined surface (34) inclined downward from one side toward the other side and the fitting protrusion (36) is formed on an upper part of the inclined surface (34) Apparatus for welding a refrigerant tube in a compressor upper cap.

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