KR20210048722A - fin forming tool assembly improving the drainage - Google Patents

Abstract

The present invention relates to a tube position alignment and anti-slip device when assembling a heat exchanger. The device comprises: a tube heat dissipation fin assembly support part supported by a frame to support both sides of a tube heat dissipation fin assembly in which a tube and a heat dissipation fin are alternately installed, so that the ends of the tubes are exposed to both sides; a transfer table which is installed on a side corresponding to the ends of the tubes supported by the tube heat dissipation fin assembly support part, and is installed to move forward and backward by a transfer part installed on the frame; a head tank coupling part coupled to the transfer table by a hinge shaft, and including a jig block provided with a head tank holding part on a side corresponding to the tube ends of the tube heat dissipation fin assembly, and a rotational driving part installed on the jig block and the transfer table to rotate the jig block so that the head tank holding part faces the upper surface and the direction corresponding to the tube end of the tube heat dissipation fin assembly; and a tube coupling position alignment part supported by a forward and backward part installed on the rotary table, and including a tube insertion position alignment pin inserted from the side of the head tank part supported on the jig block to the inside and defining an insertion position of the tube coupled to the head tank. Therefore, the present invention can fundamentally prevent an assembly defect between the head tank part and the tubes.

Description

Tube position alignment and slip prevention device when assembling a heat exchanger {fin forming tool assembly improving the drainage}

The present invention relates to an apparatus for assembling a heat exchanger, and more particularly, to an apparatus for aligning a tube position and preventing slipping when assembling a heat exchanger for arranging the insertion length of the tubes coupled to a head tank.

In general, a heat exchanger has a passage through which a heat exchange medium can flow, and is designed to perform heat exchange with external air while the heat exchange medium flows through the passage. Various methods have been developed according to the internal pressure, and representatively, fin tube type, serpentine type, drone cup type, parallel flow type, etc. have

In such a heat exchanger, a heat exchanger core (collectively referred to as a Heater Core, Evap Core, Radiator Core, Inter Cooler Core, etc.) in which heat exchange is mainly performed is composed of a header and a radiating fin and a tube stacked and fixed between the header.

Among the heat exchangers, the parallel prow type heat exchanger includes a pair of header tanks arranged side by side, and a plurality of tubes disposed side by side between the header tanks and each of both ends thereof being inserted into and fixed to the tube insertion holes formed in the header tank. It has a wide heat transfer area so that the heat exchange medium flowing in the tubes and the heat exchange medium flowing in the tubes can effectively heat exchange with the outside, and a heat dissipation fin installed between the tubes is provided.

In the above-described heat exchangers, a corrugate type is used as a conventional heat dissipation fin for increasing a heat dissipation area. The corrugated heat dissipation fin has a structure in which a plate material is corrugated in a wavy shape, and a louver is formed on its surface.

On the other hand, the heat exchanger as described above has a problem in that the coupling of the head tank to both sides of the tubes in which the radiating fins are interposed cannot limit the insertion depth of the tube.

Korean Patent Publication No. 10-2008-0076215 discloses a head tank of a heat exchanger capable of adjusting the depth of a tube, and Korean Patent Publication No. 10-2007-0096310 discloses a header tank of a high-pressure heat exchanger.

In a conventional heat exchanger capable of adjusting the depth of the tube, both support surfaces formed in the tank are formed to have a narrower width than both side wall surfaces of the header and are inserted into the header. It is made by forming a support surface inward at a certain interval to the upper surface.

The heat exchanger capable of adjusting the height of the tube has a problem in that the distribution path of the heat exchange medium combined with the head is relatively small since the tank has a support surface defining the insertion depth of the tube. The flow resistance of the heat exchange medium flowing through the head tank increases.

1) Korean Patent Publication No. 10-2008-0076215 Republic of Korea Patent Publication No. 10-2007-0096310

It is possible to limit the insertion depth of the tubes of the heat exchanger to be solved by the present invention and the tube coupled to the head tank, and since the insertion depth of each tube can be made uniform, the flow resistance of the heat exchange medium in the head tank can be reduced. In addition, it is to provide a device for aligning the tube position and preventing slipping when assembling a heat exchanger that can prevent the heat dissipation fins from being deformed by relative movement of the tubes.

Another object of the present invention is a device for aligning the tube position and preventing slipping when assembling a heat exchanger that can reduce the work man-hours due to the coupling alignment of the tubes in the head tank, and further improve reliability and productivity according to the assembly of the heat exchanger. It is in providing.

When assembling the heat exchanger of the heat exchanger of the present invention to achieve the above object, the tube position alignment and slip prevention device is supported by the frame to support both sides of the tube radiating fin assembly in which the tube and radiating fins are alternately installed, so that the ends of the tubes are at both sides. A tube radiating fin assembly support that can be exposed to

A transfer table that is installed on a side corresponding to an end of the tubes supported by the tube radiating fin assembly support unit, and is installed to be moved forward and backward by the frame-installed transfer unit,

A jig block coupled to the transfer table by a hinge shaft and provided with a head tank gripping part on the side corresponding to the tube ends of the tube heat sink assembly, and a jig block installed on the jig block and the transfer table to connect the jig block to the head tank gripping part of the tube. A head tank coupling portion having a rotation driving portion that rotates so as to face the upper surface and a direction corresponding to the tube end portion of the radiating fin assembly;

A tube fitting position provided with a tube insertion position alignment pin that is supported by the forward/reverse unit installed on the rotary table and is inserted from the side of the head tank supported by the jig block to the inside to define the insertion position of the tube coupled to the head tank. It characterized in that it includes an alignment unit.

In the present invention, the tube coupling position alignment unit has a pair of tube insertion position alignment pins installed in a vertical direction on a transfer block slidably installed along the transfer table, and both sides of each tube insertion position alignment pin are smooth. The surface is formed so that the cross section of the tube insertion position alignment pin is formed in a vertical shape, and the transfer table includes a rotation driving part for rotating the tube insertion position alignment pin.

In addition, the rotation drive unit is provided with first and second pinions so as to alternate with each of the tube insertion position alignment pins rotatably installed on the transfer member, is lifted by an actuator, and is coupled to the first and second pins, respectively. , Equipped with 2 racks.

The jig block further includes a gripping cylinder for preventing the head tank part supported by the head tank gripping part provided on the front side from being separated from the gripping part,

The gripping cylinder includes a gripping cylinder having a gripping groove formed on a side surface of the jig block, installed on the jig block, and allowing a gripping member to be moved forward and backward through the gripping groove on the rod.

When assembling the heat exchanger according to the present invention, the device for aligning the tube position and preventing slipping can maintain a constant insertion depth of each tube when assembling the tubes coupled with the head tank, thereby fundamentally preventing the assembly failure of the head tank and the tubes. And, furthermore, it is possible to increase the reliability according to the assembly.

In particular, since the insertion depth of the tubes can be kept constant with respect to the head tank, the flow resistance of the heat exchange medium flowing inside the head tank can be reduced, and the amount of refrigerant flowing into each tube can be uniformly maintained. In addition, when the head tank unit and the tubes are combined, the tubes are moved relative to each other, so that the heat dissipation fins positioned therebetween can be prevented from being deformed.

1 is a perspective view showing a tube position alignment and slip prevention device when assembling a heat exchanger according to the present invention;
2 is a side view schematically showing a tube position alignment and anti-sliding device when assembling a heat exchanger according to the present invention;
3 is a front view of the tube coupling position alignment unit according to the present invention,
4 is a perspective view showing a state in which a tube insertion alignment pin is inserted in a state in which a tube is coupled to a head tincture part supported by a jig block;
5 is a cross-sectional view showing a state in which the tube insertion alignment pin is inserted into the head tank;
6 is a cross-sectional view showing a state in which a tube insertion alignment pin is inserted into the head tank and the insertion position of the tube is limited;
Figure 7 is a perspective view showing the alignment state when the tubes are inserted into the head tank according to another embodiment of the present invention.

When assembling a heat exchanger according to the present invention, the device for aligning the tube position and preventing slipping is for limiting the insertion position of the tubes that are coupled to the head tank, and an embodiment thereof is shown in FIGS. 1 to 4.

Referring to the drawings, when assembling the heat exchanger according to the present invention, the tube position alignment and slip prevention device 10 includes a frame 11, and the frame 11 includes a tube 131 and a radiating fin 132 alternately. Supporting both sides of the stacked tube radiating fin assembly 130, the tube radiating fin assembly support 20 is installed so that the ends of the tubes 131 can be exposed to both sides. On the side corresponding to the ends of the tubes 131 supported by the tube radiating fin assembly support part 20, a transfer table 30 that is forward and backward by a transfer part (not shown) installed in the frame 11 is installed.

A head tank coupling unit 60 is installed on the transfer table 30, the head tank coupling unit 60 being coupled to the transfer table 30 by a hinge shaft, and the tube 131 of the tube radiating fin assembly 130 ) A jig block 40 having a head tank gripping part 41 on the side corresponding to the ends is provided. The jig block 40 moves the head tank gripping part 41 by a rotation driving part 50 installed on the transfer table 30 to form a direction and an upper surface corresponding to the ends of the tubes 131 of the tube heat sink assembly 130. It has a structure that rotates so that it can face.

On the other hand, it is inserted into the inside of the head tank 120 from the side of the head tank 120 supported by the jig block 40 to limit the insertion position of the tube 131 coupled to the head tank 120 And a tube fitting position aligning unit 70 having a tube inserting position aligning pin 71. The tube coupling position alignment unit 70 is moved forward and backward toward the jig block 40 by the forward/reverse unit 80 installed on the transfer table 30.

When assembling the heat exchanger of the heat exchanger according to the present invention configured as described above, the arrangement of the tube position and the device for preventing slipping will be described in more detail for each component as follows.

When assembling the heat exchanger according to the present invention, the tube position alignment and slip prevention device 10 is installed on the front side of the frame 11 to support the tube radiating fin assembly 130 in which the tube and the radiating fin are alternately installed. The assembly support part 20 includes a support table 21 on which the tube heat sink assembly 130 is installed, and on both sides of the support table 21, the first and second portions for pressing and holding the tube heat sink assembly 130 from both sides. Supports 22 and 23 are respectively installed. In addition, although not shown in the drawings, the tube heat sink assembly support part 20 may further include a manipulator for loading the tube heat sink fin assembly 130 on the support table 21.

The jig block 40 rotatably installed on the transfer table 30 may be directed toward the top and a direction corresponding to the tube end of the tube heat sink assembly 130 by a rotation drive unit 50 installed on the transfer table 30. It has a rotating structure. The rotary drive unit 50 may be a pneumatic cylinder, but is not limited thereto.

And the jig block 40 installed on the upper surface of the transfer table 30 installed on the side corresponding to the tubes 131 of the tube heat sink assembly 130 supported by the support table 21, the tubes 131 and A gripping cylinder 45 for fixing the head tank 120 inserted into the head tank gripping part 41 installed on the corresponding side is installed. The rod of the gripping cylinder 45 is further provided with a gripping member for gripping the side surface of the head tank 120 supported by the head tank gripping part 41.

Meanwhile, as shown in FIG. 7, the head tank 130 may have a circular cross section. In this case, the head tank holding portion 41 formed on the jig block 40 is formed to hold the head tank portion 140 having a circular pipe shape.

In addition, the jig block 40 rotatably installed on the upper surface of the transfer table 30 is placed on the upper surface side for receiving the head tank part 120 and the front side for assembly, that is, the tube 131 of the tube radiating fin assembly 130. ) And the rotation drive unit 50 that rotates toward the corresponding side is rotatably installed on the transfer table 30, and the rod 52 is fixed to the bracket of the jig block 40, the first cylinder 51 Includes. The first cylinder 51 may be formed of a pneumatic cylinder.

On the other hand, the tube coupling position alignment unit 70 is a transfer member 71 that is installed to be back and forth along the guide rail 71 installed on the transfer table 30, the transfer table 30 and the transfer member 71 It is provided with a forward and backward unit 80 for moving the transfer member 71 forward and backward toward the jig block 40, wherein the forward and backward unit 80 is a second cylinder 81 made of a pneumatic cylinder. It is equipped with.

In addition, a support block 72 is installed on the transfer member 71, and a pair of insertion tube alignment pins 73 is installed on the support block 72. The pair of insertion tube alignment pins 73 are maintained at predetermined intervals and are installed in a horizontal direction parallel to each other. In addition, the insertion tube alignment pins 73 have smooth surfaces formed on both sides in the longitudinal direction, that is, on the front and rear sides arranged in the horizontal direction, so that the cross section has a vertical shape. The longitudinal section has a smooth surface on the front and rear surfaces, and the upper and lower parts have a curved surface.

And the transfer member 71 is provided with a rotation drive unit 75 for rotating the insertion tube alignment pins 73 arranged in the horizontal direction forward and backward. The rotation drive unit 75 has pinions 76 and 77 installed at the ends of the tube insertion and alignment pins 73 rotatably installed on the support block 72, and the pinions 76 and 77 are forward and reversed. It is coupled to the rack 78 for rotation, the rack 78 is raised and lowered by the actuator 79 installed on the transfer member (71). Here, when the tube insertion alignment pin 73 is inserted into the head tank 120, the smooth surface of the tube insertion alignment pin 73 is positioned so that interference does not occur with the end of the tube 131 inserted therein. It is preferable to rotate when the insertion of the tube insertion and alignment pins 73 is completed, so that the end of the tube 131 and the curved portion of the tube insertion and alignment pins 73 are in contact with each other.

When assembling the heat exchanger according to the present invention configured as described above, the operation of the tube position alignment and anti-sliding device will be described as follows.

First, in order to couple the end of the tube 131 of the radiating fin assembly 130 and the head tank 120, the tube radiating fin assembly 130 is supplied to the support table 21 using a manipulator, and the first and second supporting parts 22 ) Both sides are pressed and supported by (23).

In this state, in a state in which the head tank part 120 is coupled to the head tank gripping part 41 of the jig block 40, the jig block 40 is rotated by using the first cylinder 50 to rotate the head tank part. (120) is directed toward the tube radiating fin assembly (130).

In addition, by operating the second cylinder 81 of the forward and backward unit 80, the transfer member 71 is transferred to the jig block 40 side. At this time, since the smooth surface of the tube insertion alignment pin 73 faces toward the tube 131, the insertion becomes original (see FIG. 5).

When the tube insertion and alignment pins 73 are inserted, the actuator 79 is driven by the second rotation drive unit 75 to move the rack 79 in one direction, so that the curved surface of the tube insertion and alignment pins 73 is headed. It corresponds to the tube insertion hole 121 of the tank part 120.

In this state, as shown in FIGS. 4 and 7, the transfer table 30 is transferred to the support table 21 so that the tube of the tube radiating fin assembly 130 is inserted into the tube insertion hole 121 of the head tank 120. The ends of the 131 are to be inserted. At this time, the ends of the tubes 131 inserted into the tube insertion holes 121 are in contact with the tube insertion alignment pins 73, so that the insertion positions of the tubes 131 are limited. Accordingly, the ends of the tubes 131 are uniformly aligned with the insertion depth as shown in FIGS. 6 and 7.

When the coupling of the head tank part 120 and the tube 131 of the tube heat sink assembly 130 is completed as described above, the actuator 79 of the rotation driving part 75 is operated to rotate the tube insertion and alignment pin 73 So that the smooth surface corresponds to the end of the tube 131 so that the tube insertion and alignment pin 73 is separated from the end of the tube 131. In addition, the second cylinder 81 of the forward/reverse unit 80 is operated so that the tube insertion and alignment pin 73 is separated from the head tank part 120.

When the insertion of the tube is completed as described above, the gripping cylinder for gripping the head tank 120 is operated to release the gripping state of the head tank 120 and the transfer table 30 is retracted, so that the tube radiating fin assembly 130 ) And the combination of the head tank 120 is completed.

As described above, when the tube radiating fin assembly and the head tank are combined, the ends of the tubes can be aligned, so that the flow of the heat exchange medium flowing inside the head tank can be smooth. In particular, when the tube 131 is inserted in a state in which the tubes 131 and the radiating fins 132 are aligned, the tube 131 moves relative to each other, so that the radiating fins 132 may be prevented from being deformed, that is, crushed.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those of ordinary skill in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical idea of the appended registration claims.

When assembling the heat exchanger according to the present invention, the device for aligning the tube position and preventing slipping can be used not only for assembling various heat exchangers, but also for a device that cuts a thin plate in a predetermined direction and molds and assembles it.

Claims (4)

A tube radiating fin assembly support part supported by the frame to support both sides of the tube radiating fin assembly in which the tube and radiating fins are alternately installed so that the ends of the tubes can be exposed to both sides,
A transfer table installed on a side corresponding to an end of the tubes supported by the tube radiating fin assembly support, and installed to be moved forward and backward by the frame-installed transfer unit,
A jig block coupled to the transfer table by a hinge shaft and provided with a head tank gripping part on the side corresponding to the tube ends of the tube heat sink assembly, and a jig block installed on the jig block and the transfer table to connect the jig block to the head tank gripping part of the tube. A head tank coupling portion having a rotation driving portion that rotates to face the upper surface and a direction corresponding to the tube end portion of the radiating fin assembly;
A tube coupling position provided with a tube insertion position alignment pin that is supported by the forward/reverse unit installed on the rotary table and is inserted from the side of the head tank supported by the jig block to the inside to define the insertion position of the tube coupled to the head tank. Tube position alignment and slip prevention device when assembling a heat exchanger, characterized in that it includes a heat alignment unit. The method of claim 1,
The tube coupling position alignment unit has a pair of tube insertion position alignment pins installed in a vertical direction on a transfer block slidably installed along the transfer table, and smooth surfaces are formed on both sides of each tube insertion position alignment pin. Tube position alignment and slip prevention device when assembling a heat exchanger, characterized in that the cross section of the insertion position alignment pin is formed in a lengthwise shape, and the transfer table has a rotation driving unit for rotating the tube insertion position alignment pin. The method of claim 2,
The rotation drive unit is provided with first and second pinions so as to alternate with each of the tube insertion position alignment pins rotatably installed on the transfer member, is raised and lowered by an actuator, and is coupled to the first and second pins, respectively. Tube position alignment and slip prevention device when assembling a heat exchanger, characterized in that it has two racks. The method of claim 1,
The jig block further includes a gripping cylinder for preventing the head tank part supported by the head tank gripping part provided on the front side from being separated from the gripping part,
When assembling a heat exchanger, the holding cylinder includes a holding cylinder having a holding groove formed on the side of the jig block, installed on the jig block, and capable of moving a holding member back and forth through the holding groove on the rod. Tube positioning and anti-skid device

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