KR101937881B1 - Automotive condenser header manufacturing system using mold - Google Patents

Abstract

The present invention relates to a technology about a header of a condenser for condensing and liquefying coolant compressed in an air conditioning system of a vehicle and, more specifically, to a technology for a system to manufacture a condenser header of a vehicle using a mold, which manufactures the header in a continuous process of cutting an aluminum panel into the area of the header by using the mold, perforating a plurality of tube holes, bending the header into a cylindrical shape, and welding both end parts with high frequency. According to the present invention, the system comprises: a trimming process of cutting a supplied aluminum panel into an area of a header by using a mold; a lancing and bending process of bending a material cut in the trimming process and perforating a plurality of tube holes on the material; a bending process of inwardly bending both end parts of the material bent in the landing and bending process; a folding process of bending the material bent in the bending process into a cylindrical shape; a sizing process of precisely molding the material bent into the cylindrical shape in the folding process to make both the end parts of the material closely attached to each other; a welding process of welding both the end parts of the material closely attached in the sizing process by high frequency; and a parting process of cutting and separating the material welded in the welding process from the aluminum panel.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an automotive condenser header manufacturing system using a mold,

The present invention relates to a header of a condenser for condensing and liquefying compressed refrigerant in an air conditioner system of an automobile. More specifically, the present invention relates to a header of a condenser which cuts an aluminum panel into an area of a header using a mold, And the head is manufactured by a continuous process by welding the both end portions at high frequency, thereby reducing the manufacturing cost and improving the machining accuracy and reducing the defect rate of the product. This is a technology related to a condenser header manufacturing system.

2. Description of the Related Art Generally, an air conditioner system of an automobile is a cooling system that maintains a comfortable indoor environment by keeping the indoor temperature of a vehicle at a temperature set by a driver regardless of an external temperature change. The air conditioner system includes a compressor, a condenser, And an evaporator.

The air conditioning system of the automobile includes a compressor for compressing a refrigerant, a condenser for condensing and liquefying the compressed refrigerant, an expansion valve for rapidly expanding the liquefied refrigerant, and an evaporator for evaporating the expanded refrigerant, And an evaporator for cooling the air.

In the air conditioner system, the condenser condenses the compressed high temperature and high pressure gas refrigerant in the traveling state of the vehicle through the outside air and condenses it into the low temperature liquid refrigerant. Such a condenser usually has the effect of improving the condensation efficiency through the gas- It is connected to the receiver drier through piping to remove moisture.

Korean Patent No. 10-1734273 (car condenser) has been proposed as a representative prior art of a condenser for condensing and liquefying gaseous refrigerant of high temperature and high pressure compressed in an air conditioner system of a conventional automobile.

The prior art includes a first header to which an inlet pipe through which refrigerant is introduced and discharged and a discharge pipe are connected to each other; A second header disposed at a predetermined distance from the first header; A heat exchanger mounted in a longitudinal direction of the first header and the second header facing each other; A supercooled pipe provided inside the second header; And a receiver drier for removing gas-liquid separation and moisture from the refrigerant flowing from the second header.

In this prior art, the header is formed of a double tube structure, and the refrigerant exchanged with the outside air is further cooled through heat exchange with the low-temperature and low-pressure gas refrigerant supplied from the evaporator, and then cooled and condensed by heat exchange with the outside air to improve the condensing efficiency And provides an effect of increasing the cooling performance.

Korean Patent No. 10-1452272 (method for manufacturing a connection pipe for an aluminum condenser header) has been proposed as a prior art related to a header of a condenser in a conventional automotive air conditioning system.

The connection pipe is formed of a copper pipe material. The connection pipe is formed by dipping nickel into a portion of the condenser connected to the header of the condenser, And the connection pipe connected to the header is formed in a rectangular shape so that the strength of the connection pipe is lower than that of the connection pipe. It is a configuration to be strengthened.

In this prior art, nickel or chromium is dipped in the connection pipe portion connected to the header of the condenser, so that the connection pipe made of the aluminum condenser header and the copper pipe does not cause potential corrosion during welding, It reduces the overall cost by shortening the working time.

Conventionally, in a main structure of a condenser, a header is connected to a heat exchanger constituted by radiating fins and a plurality of tubes. The header is composed of an aluminum pipe. Both sides of the pipe are hermetically sealed. And a plurality of pipe holes through which coolant flows in and out are formed.

Therefore, the header is manufactured through various processing steps such as a step of machining a plurality of tube holes and a plurality of pipe holes, and a step of sealing both side portions, so that the manufacturing cost is increased and the machining time is long, There is a problem that the defective rate is increased.

Korean Patent No. 10-1316859. Korean Patent No. 10-1317377. Korean Patent No. 10-1326841. Korean Patent No. 10-1452272. Korean Patent No. 10-1734273.

The present invention has been made to solve the problems that the manufacturing costs are increased and the machining time is long and the machining accuracy is lowered and the defect rate is increased due to the manufacturing process of the conventional capacitor head through various machining processes, The aluminum panel is cut into an area of the header, a plurality of tube holes are continuously drilled and the tube is bent into a cylindrical shape, and then welding is performed at high frequency to both ends to manufacture a header by a continuous process. And a manufacturing system.

In addition, the embodiment of the present invention provides a system for manufacturing an automotive condenser header using a mold that reduces the defective rate of a product by shortening a processing time, manufacturing cost, and processing accuracy by manufacturing a header by a continuous process using a mold .

The present invention has been made to solve the above-

A trimming step of cutting the aluminum panel supplied using the mold to the area of the header; A lancing and bending process for bending the cut material in the trimming process and perforating a plurality of tube holes; A bending process for bending both end portions of the bent material in the lancing and bending processes; A folding step of folding the bent material in a cylindrical shape in the bending process; A sizing step of accurately forming both end portions of the material bent in a cylindrical shape in the folding process so as to be closely contacted; A welding process for welding both side ends of the material adhering in the sizing process at a high frequency; And a parting step of cutting the welded material on the aluminum panel in the welding process.

In an embodiment of the present invention, the trimming process is characterized in that holes and long holes are drilled in both side portions of the aluminum panel, and cutting is performed across the elongated holes in both side portions to cut into the outer peripheral surface area of the header.

Also, as an embodiment of the present invention, the lancing and bending process is characterized in that the material is bent in the shape of "∩" by the operation of the upper mold and the lower mold, and a plurality of tube holes are simultaneously drilled at regular intervals.

" 형태로 벤딩홈이 형성된 것을 특징으로 한다.Further, as an embodiment of the present invention, the bending process may be performed by forming a bending groove in a semicircular shape on an upper mold,

Quot; bending grooves are formed.

In an embodiment of the present invention, an aluminum panel supplied using a metal mold is cut into an area of a header, a plurality of tube holes are continuously drilled, and the tube is bent into a cylindrical shape. Then, both ends are welded at high frequency, It is possible to shorten the machining time, reduce the manufacturing cost, and increase the machining accuracy, thereby reducing the defect rate of the product.

Further, according to the embodiment of the present invention, by manufacturing a header in one press machine, it is possible to reduce the work force and the machining time, and by performing the welding at the high frequency in the welding process, the defect rate of the product can be reduced and the machining time can be shortened .

1 is a photograph of a prototype product showing a header for a capacitor in the present invention.
2 is a processing plan view showing a trimming process in the present invention.
3 is a processing plan view showing a manufacturing process of a header in the present invention.
4 is a plan view of a main portion showing a trimming process in the present invention.
5 is a process drawing showing a manufacturing process of a header in the present invention.
6 is a front sectional view showing a manufacturing process of a header in the present invention.
7 and 8 are front sectional views showing a lancing and bending process in the present invention.
9 and 10 are front sectional views showing a bending process, a folding process, and a sizing process in the present invention.

Hereinafter, a header manufacturing system according to an embodiment of the present invention will be described with reference to the accompanying drawings. A trimming process 10 for cutting an aluminum panel P supplied using a die to an area of a header 100; A lancing and bending process (20) for bending the cut material (M) in the trimming process (10) and perforating a plurality of tube holes (110); A bending process (30) for bending both side ends of the material (M) bent in the lancing and bending process (20); A folding step (40) of folding the material (M) bent in the bending process (30) into a cylindrical shape; A sizing process (50) for accurately forming both side ends of the material (M) folded in a cylindrical shape in the folding step (40) so as to be closely contacted; A welding step (60) of welding both side ends of the material (M) adhered by the sizing step (50) at a high frequency; And a parting step (70) of cutting the welded material (M) in the aluminum panel (P) by cutting in the welding step (60).

The header manufacturing system in the embodiment of the present invention is a technique for manufacturing the header 100 by a continuous processing process through a plurality of dies in one press machine, 1, a plurality of tube holes 110 are formed in a longitudinal direction on one side of the outer peripheral surface, and both ends of the tube holes are sealed.

Next, a header manufacturing system according to an embodiment of the present invention will be described in detail.

1. Trimming process (10)

An elongated aluminum panel P is supplied with a width larger than the length of the header 100 by a press machine and the upper and lower dies are operated to cut the inner peripheral surface of the aluminum panel P .

2, the trimming process 10 is performed in such a manner that a hole H1 which is a reference of a distance to be transported to both sides of an aluminum panel P to be initially supplied is punctured, After the transfer, the hole H1 in the next step is drilled, and the slot H2 is drilled between the hole H1 and the hole H1.

Subsequently, the panel P is transported to a predetermined distance, and then the holes H1 and H2 are punched in the next order, while the upper and lower molds are used to cut across the elongated holes H2 of both sides, 100, the trimming process 10 is carried out continuously.

2. Lancing and bending processes (20)

The material M cut by the aluminum panel P to the outer peripheral surface area of the header 100 in the trimming process 10 is transported at a predetermined distance as shown in Fig. 3 in the figure, and then subjected to lancing, A bending process 20 is performed and the lancing and bending process 20 is spaced a predetermined distance from the trimming process 10. [

7 and 8, a bending groove 21a is formed in the upper mold 21 in a semicircular shape and a semi-circular bending groove 21b is formed in the upper mold 22 so that the upper side of the lower mold 22 is engaged with the bending groove 21a. The material M is bent in the shape of "? &Quot; by the operation of the upper mold 21 and the lower mold 22. Accordingly,

7 and 8, in the bending grooves 21a of the upper mold 21, a plurality of tube holes 110 are drilled in the material M at regular intervals A plurality of cutters 23 are provided and a plurality of cutter holes 24 are formed on the upper side of the lower mold 22 at regular intervals.

When the upper and lower molds 21 and 22 are operated after the cut material M is transported to a predetermined distance in the trimming process 10, the bending grooves 21a and the lower molds 21a and 21b of the upper mold 21, The cutter 23 is vertically disposed inside the bending groove 21a and passes through the work M to cut the cutter 23 in the cutter 23, By being drawn into the holes 24, a plurality of tube holes 110 are perforated at regular intervals to perform a lancing and bending process 20.

3. Bending process (30)

In the lancing and bending process 20, the material M bent in the form of "∩" is subjected to a work of bending the ends at both ends in advance in order to bend into a cylindrical shape.

" 형태로 벤딩홈(32a)이 형성된다.The bending process 30 is performed by disposing the upper mold 31 and the lower mold 32 at a predetermined distance from each other in the lancing and bending process 20, A bending groove 31a is formed in a semicircular shape, and the lower mold 32 is provided with a "

The bending groove 32a is formed.

The material M having passed through the lancing and bending process 20 is transported to a predetermined distance and then the material M is transported in the bending grooves 31a and 32a by the operation of the upper mold 31 and the lower mold 32 Both ends of the material M are folded and folded.

4. Folding process (40)

The folding step 40 is arranged at a distance set in the bending step 30 so as to be spaced apart from each other at a predetermined distance in the bending step 30, 9 and 10, a bending groove 41a is formed in the upper mold 41 in a semicircular shape and a bending groove 42a is formed in the lower mold 42 in a semicircular shape.

The material M having passed through the bending process 30 is transported to a predetermined distance and then the material M is transported in the bending grooves 41a and 42a by the operation of the upper mold 41 and the lower mold 42 And is bent and formed into a cylindrical shape.

5. Sizing process (50)

In the folding step 40, the folding step 50 is arranged so as to be spaced apart from the folding step 40 by a predetermined distance. In the folding step 40, 9 and 10, a bending groove 51a is formed in the upper mold 51 in a semicircular shape and a bending groove 52a is formed in the lower mold 52 in a semicircular shape.

The material M in the bending grooves 51a and 52a is moved by the operation of the upper mold 51 and the lower mold 52 when the material M having passed through the folding process 40 is transported to a predetermined distance And the two end portions are closely formed to each other while being precisely formed into a cylindrical shape while being pressurized.

6. Welding process (60)

As a step of welding both side ends of the workpiece M having been subjected to the sizing step 50, the welding step 60 is disposed at a distance set in the sizing step 50 as shown in Fig. 3 in the drawing, As shown in Fig. 6, the upper and lower molds are arranged to fix the material M bent in a cylindrical shape.

When the workpiece M having passed through the sizing process 50 is transported to a predetermined distance, the upper and lower molds are operated to fix the workpiece M, and then both ends of the workpiece M adhered to each other are welded at a high frequency, (60) is performed.

7. Parting process (70)

As shown in FIG. 3, the parting step 70 includes a welding step 60 (see FIG. 3) in which the welded workpiece M is separated from the aluminum panel P in the welding step 60, And a parting step 70 is performed by cutting both ends of the material M having a cylindrical shape by using the upper and lower molds.

The header manufacturing system according to this embodiment of the present invention can reduce the processing time, reduce the work force and the manufacturing cost, and improve the processing precision by manufacturing the header by a continuous machining process through a plurality of dies in one press machine So that the defective rate of the product is reduced.

In addition, the header manufacturing system according to the embodiment of the present invention can reduce the work force and the processing time by manufacturing the header in one press machine, and further, by performing the high frequency welding in the welding process, And the processing time is shortened.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It is possible to carry out various changes in the present invention.

10: trimming process 20: lancing and bending process
21: upper mold 22: lower mold
23: cutter 24: cutter hole
30: Bending process 31: Upper mold
32: lower mold 40: folding process
41: upper mold 42: lower mold
50: sizing step 51: upper mold
52: Lower mold 60: Welding process
70: Parting process 100: Header
110: Tube hole M: Material
P: Panel

Claims (4)

A trimming step (10) of cutting the aluminum panel (P) supplied using a mold to the area of the header (100); A lancing and bending process (20) for bending the cut material (M) in the trimming process (10) and perforating a plurality of tube holes (110); A bending process (30) for bending both side ends of the material (M) bent in the lancing and bending process (20); A folding step (40) of folding the material (M) bent in the bending process (30) into a cylindrical shape; A sizing process (50) for accurately forming both side ends of the material (M) folded in a cylindrical shape in the folding step (40) so as to be closely contacted; A welding step (60) of welding both side ends of the material (M) adhered by the sizing step (50) at a high frequency; And a parting step (70) of cutting the welded material (M) in the aluminum panel (P) by cutting in the welding step (60)
The trimming step 10 cuts the area of the outer peripheral surface of the header 100 while cutting the holes H1 and H2 through both sides of the aluminum panel P, And,
The lancing and bending process 20 is performed by bending the workpiece M in the shape of "∩" by the operation of the upper mold 21 and the lower mold 22, and at the same time, a plurality of tube holes 110 are formed at regular intervals A bending groove 21a is formed in the upper mold 21 in a semicircular shape and a semicircular curved surface is formed in the upper mold 22 so that the upper side of the lower mold 22 is engaged with the bending groove 21a, A plurality of cutters 23 are formed at regular intervals in the inside of the lower mold 22, a plurality of cutter holes 24 are formed at regular intervals on the lower mold 22,
The bending process 30 includes a bending groove 31a formed in the upper mold 31 in a semicircular shape,

Bending groove 32a is formed,
The folding process 40 is performed by moving the material M having passed through the bending process 30 to a predetermined distance and then moving the bending process in the bending grooves 41a and 42a by the operation of the upper mold 41 and the lower mold 42. [ The material M is folded and formed into a cylindrical shape while being swollen,
The sizing process 50 is performed by moving the upper and lower molds 51 and 52 in the bending grooves 51a and 52a when the material M having passed through the folding process 40 is transported to a predetermined distance. (M) is pressed and pressurized, the two end portions are closely formed to each other while being precisely formed into a cylindrical shape,
The welding process 60 is a process in which the upper and lower molds are operated to fix the workpiece M and then both ends of the workpiece M adhered to each other are moved to a high frequency ≪ / RTI >
Wherein the parting step (70) is arranged at a predetermined distance in the welding step (60), cutting both ends of the material (M) having a cylindrical shape by using the upper and lower molds, Manufacturing System delete delete delete

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