JP4585780B2 - Temporary assembly apparatus and temporary assembly method for heat exchanger - Google Patents

Description

  The present invention relates to a temporary assembly device and a temporary assembly method for a heat exchanger. More specifically, the present invention relates to a pair of headers arranged parallel to each other at intervals, and arranged in parallel between both headers, and both ends are Each of the flat heat exchange pipes brazed to both headers in a state of being inserted into the insertion holes formed in both headers and the adjacent heat exchange pipes and brazed to the heat exchange pipes. For example, when manufacturing heat exchangers used as condensers and evaporators for car air conditioners, oil coolers for automobiles, radiators for automobiles, etc., the header, the flat heat exchanger tube material and the fins are The present invention relates to a temporary assembling apparatus used when temporarily assembling to a state before attachment and a method of temporarily assembling to the above state.

  In this specification and claims, the term “aluminum” includes aluminum alloys in addition to pure aluminum. Further, in this specification and claims, the top, bottom, left and right in FIG. 2 are referred to as top and bottom and left and right, respectively, and the lower side in FIG.

  For example, as a capacitor for a car air conditioner, as shown in FIG. 13, a pair of headers (50) and (51) arranged in parallel with a distance from each other, and both ends are connected to both headers (50) and (51), respectively. Aluminum parallel corrugated aluminum braided between both heat exchange tubes (52) and arranged in the ventilation gap between adjacent aluminum flat heat exchange tubes (52) and adjacent heat exchange tubes (52) A fin (53), an inlet pipe (54) connected to the upper end of the peripheral wall of the first header (50), an outlet pipe (55) connected to the lower end of the peripheral wall of the second header (51), and a first A first partition plate (56) provided in the upper position from the middle of the header (50), and a second partition plate (57) provided in the lower position from the middle of the second header (51). The number of heat exchange tubes (52) between the inlet pipe (54) and the first partition plate (56), and the heat between the first partition plate (56) and the second partition plate (57) Number of exchange tubes (52), second divider (57) and the number of heat exchange pipes (52) between the outlet pipe (55) are sequentially reduced from above to form a passage group, and the gas phase refrigerant flowing from the inlet pipe (54) A so-called multi-flow type capacitor that is configured to flow in a meandering manner in each passage group until it flows out from the outlet pipe (55) into a liquid phase is a conventional serpentine type capacitor. Instead, it is widely used as one capable of realizing high performance, low pressure loss, and ultra-compact (see, for example, Patent Document 1, Paragraph 0003).

  The heat exchange pipe (52) of the condenser is required not only to have excellent heat exchange efficiency but also to have pressure resistance because a high-pressure gas refrigerant is introduced into the inside. Moreover, in order to reduce the size of the condenser, it is required that the tube wall of the heat exchange tube is thin and the tube height is low.

  As a heat exchange pipe (52) excellent in heat exchange efficiency used in such a condenser, two flat walls parallel to each other, both side walls straddling both side edges of both flat walls, and both flat walls between both side walls are used. A plurality of reinforcing walls extending in the lengthwise direction and spaced apart from each other, and having parallel fluid passages therein, each reinforcing wall being flat on one side It is known that the ridges integrally molded in an inwardly protruding shape from the wall and the ridges integrally formed in an inwardly protruding shape from the other flat wall are mutually butted and brazed. (See Patent Document 1, paragraphs 0025 to 0027).

  Such a flat heat exchange tube is composed of two flat wall forming portions (60) forming a flat wall, a connecting portion (61) connecting the two flat wall forming portions (60) and forming one side wall, A side wall forming portion (62) integrally formed in a raised shape on the side edge opposite to the connecting portion (61) in each flat wall forming portion (60) and forming the other side wall, and each flat wall forming portion ( 60), a single metal plate having a plurality of protrusions (63) integrally formed in a raised shape in the same direction as the side wall forming part (62) with a space in the width direction of the flat wall forming part (60) Is bent into a hairpin shape at the connecting portion (61), the side wall forming portions (62) and the ridges (63) are brought into contact with each other to form a heat exchange tube material (P) (see FIG. 14). It is manufactured by brazing the side wall forming portions (62) and the ridges (63) of the pipe material (P) (see Patent Document 1, paragraph 0033). In this heat exchange tube material (P), in order to prevent the side wall forming portions (62) from opening each other, the convex portion (64) formed on the tip surface of one side wall forming portion (62) It is press-fitted into a recess (65) formed in the tip surface of the side wall forming part (62). In the metal plate before being bent to form the heat exchange tube material (P), the protrusions (63) of one flat wall forming part (60) and the flat wall forming part (60) of the other flat wall forming part (60). The ridge (63) is located symmetrically with respect to the center line in the width direction of the metal plate.

  As a device for temporarily assembling the header, the flat heat exchange tube material, and the fins in the state before brazing in manufacturing the capacitor as described above, the thickness of the heat exchange tube material fixed on the work base and on the upper surface And a pair of left and right guides that are provided on the work base on both the left and right sides of the guide and that can approach and separate from each other. Header receiver (see, for example, Patent Document 2).

  The temporary assembly of the header, the heat exchange tube material, and the fins using this temporary assembly apparatus is performed as follows. That is, one end portion of one heat exchange tube material among all the heat exchange tube materials is inserted into the insertion hole of one header, and the other end portion of the other one heat exchange tube material is inserted into the other header. Insert into the hole. Further, all the remaining heat exchange tube materials are inserted into the tube material insertion grooves of the guide. Next, headers are arranged in both header receivers. Next, the both end portions of the heat exchange tube material are inserted into the insertion holes of the header by bringing both header receivers close to each other. Thereafter, the header and the heat exchange tube material are removed from the header receiver and the guide, respectively, and corrugated fins are arranged between the adjacent heat exchange tube materials. Thus, temporary assembly of the header, the heat exchange tube material, and the fins is performed.

  However, when the heat exchange tube material (P) shown in FIG. 14 as described above is used, it has been found that the conventional temporary assembly apparatus has the following problems.

That is, because the heat exchange tube material (P) is manufactured by cutting a predetermined length while continuously forming a long one, the convex portion (64) is a concave portion ( 65) The side wall forming part (62) of the heat exchange tube material (P) may be opened due to slipping out of the inside. As a result, as shown in FIG. 15, the thickness (T) of the end portion of the heat exchange tube material (P) becomes wider than the width (S) of the insertion hole (H1) formed in the header (H), During the temporary assembly, the end of the heat exchange tube material (P) may not be inserted into the insertion hole (H1) of the header (H).
JP-A-6-281373 (paragraph 0003, paragraphs 0025 to 0027, paragraph 0033) JP-A-5-7958 (paragraphs 0011 to 0017)

  An object of the present invention is to solve the above-mentioned problems, and to temporarily assemble a tube material correction member for a temporary assembly of a heat exchanger that can insert the end portion of the heat exchange tube material into the insertion hole of the header during temporary assembly, and a heat exchanger The provisional assembly apparatus and provisional assembly method are provided.

  In order to solve the above problems, the present invention comprises the following aspects.

1) A pair of headers arranged in parallel at a distance from each other, and arranged in parallel between both headers, and both ends inserted into insertion holes formed in both headers. In manufacturing a heat exchanger having a plurality of attached flat heat exchange tubes and fins brazed to the heat exchange tubes and disposed between adjacent heat exchange tubes, the header and the flat shape This is a device for temporarily assembling the heat exchange tube material and fins in the state before brazing, so that the length direction is in the left-right direction, the width direction is in the up-down direction, and the left and right ends are in the same position. A plurality of flat heat exchange tube materials arranged in parallel in the front and back, a support member that supports fins arranged between adjacent heat exchange tube materials, and a left and right side of the support member move in the left and right direction respectively. Arranged freely A pair of left and right header receivers and a plurality of slits for fitting a tube material, which are long in the front-rear direction, are formed from one side edge at the same interval as the heat exchange pipe of the heat exchanger to be manufactured in the front-rear direction. Tube material correcting member, and the tube material correcting member includes a correction position where the left and right ends of all the heat exchange tube materials supported by the support member are fitted into the tube material insertion slits, and a heat exchange tube material Is designed to move between uncorrected positions that do not fit into the tube material insertion slits, and the tube material correction member is movable in the left-right direction when it is in the correction position. Temporary assembly device.

  2) The opening width of the tube material insertion slit is larger than the maximum thickness of the flat heat exchange tube material, and the end of the tube material insertion slit on the opening side gradually expands toward the opening. A temporary assembly device for a heat exchanger as described in 1) above.

  3) The heat exchanger according to 2) above, wherein a portion gradually expanding toward the opening at the opening side end of the tube material insertion slit is tapered, and the taper angle of the tapered portion is 10 to 20 degrees. Temporary assembly equipment.

4) The heat exchanger temporary assembly device according to 3) above, wherein the depth of the portion excluding the tapered portion of the tube material insertion slit is equal to or greater than the width of the heat exchange tube material.

5) The heat exchanger temporary assembly device according to any one of 1) to 4), wherein the tube material correction member is biased outward in the left-right direction by the biasing member when the tube material correction member is in the correction position.

6) The tube material correction member is provided on the tube material pressing member that is long in the front-rear direction, and the tube material pressing member is placed on the left and right ends of all the heat exchange tube materials supported by the support member. And a second position away from the top of all the heat exchange tube materials, and the tube material correction member is moved relative to the tube material press member when the tube material press member is in the first position. The temporary assembly device for a heat exchanger according to any one of 1) to 5) , which moves vertically and takes a correction position in a lowered position and takes a non-correction position in a raised position.

7) The pipe material holding member is fixed to the tip of the arm, which is arranged on the outer side of the header receiver in the left-right direction and is pivoted around the axis of the horizontal axis extending in the front-rear direction. The temporary assembly device for a heat exchanger as described in 6) above, which is adapted to move between the first position and the second position.

8) A pair of headers arranged in parallel at a distance from each other, and arranged in parallel between both headers, and both ends inserted into insertion holes formed in both headers. And a pair of fins brazed to the heat exchange pipes, the heat exchange pipes facing each other. In manufacturing a heat exchanger having two flat walls and two side walls straddling both side edges of the two flat walls, the header, the flat heat exchange tube material, and the fins are temporarily put into a state before brazing. Using the apparatus according to any one of 1) to 7) above, wherein the length direction is in the left-right direction, the width direction is in the up-down direction, and both left and right ends are in the same position. Multiple flats arranged in parallel in front and back to come Support the heat exchange tube material and the fins arranged between adjacent heat exchange tube materials on the support member, keep both header receivers separated from each other, and place headers on both header receivers, tube material By moving the straightening member to the straightening position, the left and right ends of all heat exchange tube materials supported by the support member are fitted into the tube material insertion slits, and both header receivers are moved inward in the left-right direction. A temporary assembly method for a heat exchanger including inserting both ends of a heat exchange tube material into insertion holes of a header.

9) What are the two flat wall forming portions in which the heat exchange tube material forms a flat wall, the connecting portions connecting the two flat wall forming portions and forming one side wall, and the connecting portions in each flat wall forming portion? One metal plate having a side wall forming portion that is integrally provided on the opposite side edge so as to protrude from the flat wall forming portion and that forms the other side wall is bent into a hairpin shape at the connecting portion, thereby forming a side wall. The temporary assembling method for a heat exchanger according to 8) above, wherein the heat exchanger is formed by abutting the forming portions together.

10) The method for temporarily assembling a heat exchanger as described in 9) above , wherein the metal plate is formed by rolling an aluminum brazing sheet having a brazing filler metal layer on both sides.

11) A method for producing a heat exchanger, characterized by brazing a header, a heat exchange tube material, and fins temporarily assembled by the method according to any one of 8) to 10 ) above. 12) A heat exchanger manufactured by brazing a header, a heat exchange tube material, and fins temporarily assembled by the method according to any one of 8) to 10 ) above.

13) A vehicle including a refrigeration cycle having a compressor, a condenser, and an evaporator, wherein the condenser comprises the heat exchanger described in 12) above .

  Moreover, the temporary assembly apparatus of this invention also includes the following aspect.

  I. The support member is composed of a support table that is spaced apart in the left-right direction. A tube material guide is provided between the support tables so as to be movable up and down. The upper surface of the tube material guide in the raised position is higher than the upper surface of the support member. The plurality of insertion grooves that extend in the left-right direction and fit the heat exchange tube material are wider in the front-rear direction than the interval between the heat exchange tubes of the heat exchanger. The temporary assembly device for a heat exchanger according to any one of 1) to 8), which is formed at intervals.

  B. The temporary assembly device for a heat exchanger according to the above (a), wherein the receiving member is fixedly disposed on either one of the front and rear of the tube material guide, and a pressing member movable in the front-rear direction is disposed on the other.

  According to the temporary assembly device of 1), for example, two flat wall forming portions that form a flat wall, a connecting portion that connects the two flat wall forming portions and forms one side wall, and each flat wall forming portion One metal plate having a side wall forming portion that is integrally provided on the side edge opposite to the connecting portion so as to protrude from the flat wall forming portion and that forms the other side wall is shaped like a hairpin at the connecting portion. In the heat exchange tube material that is bent and the side wall forming portions are butted together, the left and right ends of the side wall forming portion are opened so that the thickness of the end portion of the heat exchange tube material is larger than the width of the insertion hole of the header. Even if it is large, a plurality of flat heat exchange tubes arranged in parallel in the front and back so that the length direction faces the left and right direction, the width direction faces the up and down direction, and both the left and right ends are at the same position, respectively. Material With the fins arranged between adjacent heat exchange tube materials supported by the support member, the tube material correction member is moved from the non-correction position to the correction position, and the left and right ends of the heat exchange tube material are By fitting into the tube material insertion slit of the material correction member, the side wall forming portions can be closed and butted, and the thickness of the end portion can be set to a size that can be inserted into the insertion hole of the header. Further, even when the intermediate portion in the width direction of the heat exchange tube material is swelled, the bulge can be corrected by fitting the heat exchange tube material into the tube material insertion slit of the tube material correction member. it can.

In addition, when the left and right ends of the heat exchange tube material are inserted into the insertion holes of the header, the tube material correction members in which the left and right ends of the heat exchange tube material are fitted in the tube material insertion slits are inserted into the header. Since it is pushed and moves inward in the left-right direction, it does not hinder the insertion of the heat exchange tube material into the insertion holes at the left and right ends .

  According to the temporary assembly device of 2) and 3) above, even if the thickness of the left and right ends of the heat exchange tube material is larger than the width of the insertion hole of the header, the end of the heat exchange tube material is It can be smoothly inserted into the slit for material insertion. Moreover, not only when the side wall forming part is located on the lower side, but also when the side wall forming part is located on the upper side, the left and right ends of the heat exchange tube material are smoothly inserted into the tube material insertion slit. It is inserted. Further, even when the intermediate portion in the width direction of the heat exchange tube material is swelled, the bulge can be corrected by fitting the heat exchange tube material into the tube material insertion slit of the tube material correction member. it can.

  According to the temporary assembly device of 4) above, not only when the side wall forming part is located on the upper side, but also when the side wall forming part is located on the lower side, The thickness can be made a dimension that can be inserted into the insertion hole of the header.

The 5 temporarily assembled device by the lever of), after inserting the right and left ends of the heat exchange tubes materials into the insertion hole of the header, moving the tubular material straightening member in uncorrected position, the tube material straightening member biasing member It is moved outward in the left-right direction by the urging force of and returns to the original state.

According to the temporary assembling apparatus of the above 6) and 7) , when the pipe material correcting member is moved from the non-correcting position to the correcting position, the left and right ends of the heat exchange pipe material are located at the first position. Therefore, it is possible to reliably insert the heat exchange tube material into the tube material insertion slit of the tube material correction member and insert the heat exchange tube material into the insertion hole of the header.

According to the temporary assembly method of 8) , for example, two flat wall forming portions that form flat walls, a connecting portion that connects both flat wall forming portions and forms one side wall, and a flat wall forming portion One metal plate having a side wall forming portion that is integrally provided on the side edge opposite to the connecting portion so as to protrude from the flat wall forming portion and that forms the other side wall is shaped like a hairpin at the connecting portion. In the heat exchange tube material that is bent and the side wall forming portions are butted together, the left and right ends of the side wall forming portion are opened so that the thickness of the end portion of the heat exchange tube material is larger than the width of the insertion hole of the header. Even if it is large, a plurality of flat heat exchange tubes arranged in parallel in the front and back so that the length direction faces the left and right direction, the width direction faces the up and down direction, and both the left and right ends are at the same position, respectively. Material With the fins arranged between adjacent heat exchange tube materials supported by the support member, the tube material correction member is moved from the non-correction position to the correction position, and the left and right ends of the heat exchange tube material are By fitting into the tube material insertion slit of the material correction member, the side wall forming portions can be closed and butted, and the thickness of the end portion can be set to a size that can be inserted into the insertion hole of the header.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 and 2 show the overall configuration of the heat exchanger temporary assembly apparatus according to the present invention, and FIGS. 3 to 12 show the configuration of the main part thereof.

  1 to 3, the heat exchanger temporary assembly device is provided on the base (1), and is arranged in parallel in the front-and-rear direction so that the length direction is in the left-right direction and the width direction is in the up-down direction. A plurality of flat heat exchange tube materials (P) arranged, and a support member (2) that supports corrugated fins arranged between adjacent heat exchange tube materials (P), and a support member (2) A header receiver (3) that is long in the front-rear direction that is movably disposed in the left-right direction on both the left and right sides, and a heat exchanger tube material that is disposed on the left and right sides of the support member (2) and supported by the support member (2) Pressing and straightening device (4) that presses the portion near the left and right ends from the center of the length direction of (P) from above, and corrects the dimensions in the thickness direction of the left and right ends of the heat exchange tube material (P) ) And the positions of the left and right ends of the heat exchange tube material (P) disposed on the left and right sides of the support member (2) and supported by the support member (2). A pipe material position adjusting device (5) for adjustment is provided.

  The support member (2) includes a pair of left and right support tables (6) that are provided in the left-right direction and are long in the front-rear direction and are flat surfaces whose upper surfaces are located on the same horizontal plane. A pressure plate (40) that is long in the left-right direction is fixed so as to span between the front end portions of both support tables (6), and a pressure plate that is also long in the left-right direction so as to straddle between the rear end portions of both support tables (6). 41) is arranged to be movable in the front-rear direction. The pressing plate (41) is fixed to the tip of the piston rod (42a) of the hydraulic cylinder (42) mounted on the base (1) through a suitable cylinder support (not shown). The rod (42a) is moved in the front-rear direction by advancing and retracting. In addition, a tube material guide (7) that is long in the front-rear direction is arranged between the support tables (6) so as to be movable up and down. The pipe material guide (7) is fixed to the upper end of the piston rod (8a) of the hydraulic cylinder (8) mounted upward on the base (1), and can be moved up and down by the forward and backward movement of the piston rod (8a). . When the tube material guide (7) is in the raised position, its upper surface is located above the upper surface of the support table (6) .On the contrary, when it is in the lowered position, its upper surface is on the support table (6). It is located below the upper surface. The upper surface of the tube material guide (7) has a plurality of insertion grooves (9) for inserting the heat exchange tube material (P) extending in the left-right direction and having the width direction directed in the up-down direction. It is formed with a wider interval than the interval between the heat exchange tubes of the exchanger. When the tube material guide (7) is in the raised position, the bottom surface of the fitting groove (9) is at the same height as the top surface of the support table (6).

  Each header receiver (3) is in a state where the insertion hole (H1) faces the heat exchange tube material (P) side at a height position corresponding to the heat exchange tube material (P) supported by the support member (2). The header (H) is supported. Each header receptacle (3) is a piston of a hydraulic cylinder (12) attached to a pair of left and right cylinder supports (11) fixed to the base (1) so as to project upward. It is fixed to the tip of the rod (12a) and is moved in the left-right direction by the advancement and retraction of the piston rod (12a). A receiving plate (13) for receiving the front end surface of the header (H) is fixed to the front end portion of each header receiver (3), and the header (H) is brought forward in contact with the rear end surface of the header (H) at the rear end portion. A pressing plate (14) for pressing is provided so as to be movable in the front-rear direction. The push plate (14) is fixed to the tip of the piston rod (15a) of the hydraulic cylinder (15) attached to the header receiver (3) in the rearward direction, and is moved forward and backward by the piston rod (15a). It is done.

  Each pressing and straightening device (4) is attached to a horizontal shaft (16) extending in the front-rear direction and disposed at a position outwardly in the left-right direction and below the header receiver (3) at a portion near the base end. A pair of front and rear substantially L-shaped arms (17) rotating around the axis of the horizontal axis (16) and a rectangular cross section long in the front-rear direction secured between the distal ends of both arms (17). A tube material pressing member (18) and a tube material correcting member (19) attached to the tube material pressing member (18) are provided.

  The horizontal shaft (16) is attached between a pair of front and rear shaft supports (21) fixed to the base (1) so as to protrude upward so as to be positioned on both front and rear sides of the header receiver (3). The arm (17) is attached to a portion protruding outward in the front-rear direction from the shaft support (21) of the horizontal shaft (16), and is rotated as follows. A hydraulic cylinder (22) inward in the left-right direction rotates around an axis extending in the front-rear direction at the outer end in the left-right direction at a portion rearward of the rear arm shaft support (21) in the base (1) The front end of the piston rod (22a) of the hydraulic cylinder (22) can pivot about an axis extending in the front-rear direction to the base end of the rear arm (17). Is pivotally attached. As the piston rod (22a) moves forward and backward, the arm (17) is rotated about the axis of the horizontal axis (16).

  The tube material pressing member (18) is placed on a portion slightly closer to the center than both left and right ends of all the heat exchange tube materials (P) supported by the support member (2) by the rotation of the arm (17). It moves between the first position (see the chain line in FIG. 2) and the second position (see the solid line in FIG. 2) that is away from the top of all the heat exchange tube materials (P).

  In the following description, the pipe material pressing member (18), the pipe material correcting member (19), and the parts and members related to these are vertically, left and right, the pipe material pressing member (18) is in the first position. It shall be based on the case in

  The pipe material straightening member (19) has a plate shape long in the front-rear direction, and a plurality of pipe material insertion slits (23) are arranged at the same interval as the heat exchange pipe of the heat exchanger to be manufactured in the front-rear direction. It is formed from the lower edge. As shown in FIG. 8, the width (W) of the tube material insertion slit (23) of the tube material correction member (19) is preferably equal to the thickness of the heat exchange tube material (P). Considering the ease of fitting the heat exchange tube material (P) into the slit (23), it may be about 0.1 mm larger. If it is larger than this, dimensional correction in the thickness direction of the left and right ends of the heat exchange tube material (P) by inserting the heat exchange tube material (P) into the tube material insertion slit (23) is not sufficiently performed. The left and right ends of the heat exchange tube material (P) may not be inserted into the insertion holes (H1) of the header (H). The width of the lower end opening of the tube material insertion slit (23) is the maximum thickness of the flat heat exchange tube material (P), for example, when the left and right ends of the heat exchange tube material (P) are open. It is larger than the thickness of the portion (see FIG. 15 (T)). The lower end portion (end portion on the opening side) of the tube material insertion slit (23) has a taper shape gradually expanding downward (opening), and the taper angle (X) of the taper portion (23a) is 10. It is preferable that it is -20 degree | times. If this taper angle (X) is less than 10 degrees, when the left and right ends of the heat exchange tube material (P) are open, the tube material insertion slit (23) may not fit smoothly. If the left and right ends of the heat exchange tube material (P) are open beyond 20 degrees, the ends of the heat exchange tube material (P) will come into contact with the tapered portion (23a) and get caught. May deform without closing. The taper angle (X) is preferably 16 to 18 degrees. In the drawing, the interval between adjacent tube material insertion slits (23) is shown larger than in the actual case. Further, the depth (Y) (length in the vertical direction) of the tube material insertion slit (23) excluding the tapered portion (23a) is equal to or greater than the width of the heat exchange tube material (P). .

  As shown in FIG. 3 and FIG. 7, two rod supports (24) are fixed in an upward projecting manner at the inner side edge in the left-right direction on the upper surface of the tube material pressing member (18) with a space in the front-rear direction. Each rod support (24) is penetrated by a rod (25) extending in the left-right direction so as to be movable in the left-right direction. A stopper (26) is provided at the inner end in the left-right direction of each rod (25). The front and rear ends of the cylinder mounting plate (27) that is long in the front-rear direction are fixed to the left and right outer end surfaces of the front and rear rods (25), and the rods (24) and the cylinder mounting plate (27) are A compression coil spring (28) (biasing member) is mounted around 25). Upward hydraulic cylinders (29) are attached to the front and rear ends of the outer surface in the left-right direction of the cylinder mounting plate (27), respectively. A substantially inverted L-shape consisting of a lateral portion (31a) and a downward portion (31b) extending downwardly from the left and right outer edges of the lateral portion (31a) at the upper end of the piston rod (29a) of each hydraulic cylinder (29) The horizontal portion (31) of the bracket (31) is fixed. The tube material correcting member (19) is fixed to the lower end of the downward portion (31b) of the bracket (31) so that the tube material insertion slit (23) faces downward. When the pipe material pressing member (18) comes to the first position, the pipe material correction member (19) moves up and down via the bracket (31) by the advancement and retreat of the piston rod (29a) of the hydraulic cylinder (29). The tube material correction member (19) is moved, and the correction positions where the left and right ends of all the heat exchange tube materials (P) supported by the support member (2) fit into the tube material insertion slits (23), The heat exchange tube material (P) is positioned at an uncorrected position where it does not fit in the tube material insertion slit (23).

  As shown in FIGS. 4 to 6, each tube material position adjusting device (5) is provided on each of the horizontal substrate (32) that can be moved up and down that is long in the front-rear direction and the front and rear ends of the horizontal substrate (32). A rising wall (33), a pair of left and right guide bars (34) secured between the rising walls (33) and extending in the front-rear direction, and both guide bars (34) 34) a plurality of moving members (35) that can move in the front-rear direction, and a position that is above the moving member (35) and slightly inward in the left-right direction from the center in the left-right direction of the horizontal substrate (32). And a tube material end positioning bar (36) having a circular cross section that is held between the rising walls (33). The horizontal substrate (32) is mounted upward on the lower surface of the base (1), and the piston rod in the pair of front and rear hydraulic cylinders (37) in which the piston rod (37a) projects upward from the base (1). It is fixed to the upper end of (37a). And the horizontal board | substrate (32) is moved to an up-down direction by the advance / retreat of the piston rod (37a) of a hydraulic cylinder (37). A pipe material interval adjusting member (38) protruding upward is integrally formed at a position inward in the left-right direction with respect to the positioning bar (36) on the upper surface of the moving member (35). The width of the pipe material interval adjusting member (38) in the front-rear direction is equal to the interval between the insertion holes (H1) adjacent in the front-rear direction of the header (H). Further, when the moving members (35) adjacent to each other in the front and back contact each other, the interval between the tube material interval adjusting members (38) adjacent to the front and rear becomes equal to the thickness of the heat exchange tube material (P). ing. Although not shown, the pipe material position adjusting device (5) includes a device for moving the moving member (35) from the abutted state to a state separated from each other. ) Are separated from each other, all the tube material interval adjusting members (38) are located between the adjacent fitting grooves (9) of the tube material guide (7) and are mutually heat exchange tube materials (P ) Is greater than the thickness.

  The temporary assembly of the header (H), the heat exchange tube material (P), and the corrugated fin (F) of the heat exchanger using the temporary assembly apparatus having the above configuration is performed as follows.

  First, a header (H), a flat heat exchange tube material (P), and a corrugated fin (F) are prepared. The header (H) is cylindrical, and a plurality of vertically long insertion holes (H1) for inserting the heat exchange tube material (P) are formed at intervals in the front-rear direction. The flat heat exchange tube material (P) has the configuration shown in FIG. 14 as described above, and is formed by rolling an aluminum brazing sheet clad with a brazing material on both sides. This heat exchange tube material (P) is formed into a hairpin shape by bending an aluminum brazing sheet from a feed roll on which an aluminum brazing sheet clad with a brazing material is wound on both sides to form a bent continuous body. Is cut at a predetermined length, and at both ends, which are the cut ends, as described in the prior art, the convex part (64) comes out of the concave part (65) and the side wall. The forming portions (62) are slightly opened, and the thickness (T) may be larger than the width of the insertion hole (H1) of the header (H) (see FIG. 15).

  Then, the tube material guide (7) is raised and each header receiver (3) is moved outward in the left-right direction, and the arm (17) of the left tube material presser / straightening device (4) is moved back. In the clockwise direction, the arm (17) of the right pipe material pressing / correcting device (4) is rotated clockwise, and the pipe material pressing member (18) is moved to the second position. At this time, the tube material correcting member (19) is raised with respect to the tube material pressing member (18) and moved to the uncorrected position. Further, the pipe material position adjusting device (5) is lowered. At this time, the moving member (35) is in a position separated from each other, and the interval between the adjacent interval adjusting members (38) is larger than the thickness of the heat exchange tube material (P).

  In this state, the center portion of the flat heat exchange tube material (P) is inserted into all the insertion grooves (9) of the tube material guide (7), and the insertion holes (H1 ) Is placed with the header (H) facing inward in the left-right direction (see FIGS. 1 and 2). The left and right ends of the heat exchange tube material (P) protrude outward in the left-right direction from the left and right support tables (6), respectively. Next, the tube material position adjusting device (5) is raised, and the left and right ends of the heat exchange tube material (P) are positioned between the adjacent interval adjusting members (38), and the tube material end positioning bar (36) is used. Determine the positions of the left and right ends of all heat exchange tube materials (P). Next, the pipe material guide (7) is lowered (see FIG. 4), and the left and right ends of the heat exchange pipe material (P) are supported by the left and right support tables (6), respectively. ) Corrugated fins (F) are arranged between them (see FIG. 5). Next, turn the arm (17) of the left holding and straightening device (4) in the clockwise direction and the arm (17) of the right holding and straightening device (4) in the counterclockwise direction to turn the tube material holding member ( 18) is moved to the first position, and the left and right ends of all heat exchange tube materials (P) and corrugated fins (F) are pressed. Next, the pressure plate (41) is moved forward to move the heat exchange tube material (P) forward until the adjacent moving members (35) come into contact with each other (see FIG. 6). Thereby, the space | interval between adjacent heat exchange tube raw materials (P) becomes equal to the space | interval of the insertion hole (H1) of a header (H). Next, the push plate (14) is advanced, and the header (H) is clamped between the push plate (14) and the receiving plate (13). Next, by lowering the pipe material position adjustment device (5), the length direction is directed to the left and right direction, the width direction is directed to the up and down direction, and the left and right ends are arranged in parallel in the front and rear direction. The left and right support tables (6) support the fins (F) disposed between the plurality of heat exchange tube materials (P) and the adjacent heat exchange tube materials (P).

  Next, as shown in FIGS. 7 and 8, the pipe material correcting member (19) is lowered, and the right and left ends of all the heat exchange pipe materials (P) are fitted into the pipe material insertion slits (23) ( (See FIG. 9). At this time, even if the side wall forming portions (62) are slightly opened at the left and right end portions of the heat exchange tube material (P), the end portion of the side wall forming portion (62) is acted by the function of the tube material insertion slit (23). The two are matched. Further, since the tapered portion (23a) is provided at the opening side end of the tube material insertion slit (23), the side wall forming portion (62) is supported on the support table (6) so as to be positioned on the lower side. Of course, when the side wall forming part (62) is supported by the support table (6) so that the side wall forming part (62) is located on the upper side, the left and right ends of the heat exchange pipe material (P) are inserted into the pipe material. It fits smoothly into the slit (23) (see FIG. 8).

  Next, each header receiver (3) is moved inward in the left-right direction, and the left and right ends of the heat exchange tube material (P) are inserted into the insertion holes (H1). At this time, the pipe material straightening member (19), the hydraulic cylinder (29) and the cylinder mounting plate (27) are pushed inward in the left-right direction against the urging force of the compression coil spring (28) by being pushed by the header (H). Since it moves, it does not hinder the insertion into the insertion holes (H1) at the left and right ends of the heat exchange tube material (P) (see FIG. 10).

  Next, the push plate (14) is retracted and each header receiver (3) is moved outward in the left-right direction, and then the pipe material correction member (19) is raised (see FIG. 11). At this time, due to the urging force of the compression coil spring (28), the pipe material correction member (19), the hydraulic cylinder (29) and the cylinder mounting plate (27) move outward in the left-right direction and return to their original state. Thereafter, the pressing plate (41) is retracted, the arm (17) of the left pressing / correcting device (4) is turned counterclockwise, and the arm (17) of the right pressing / correcting device (4) is turned clockwise. Each is rotated to move the tube material pressing member (18) to the second position. Thus, the temporary assembly of the header (H), the heat exchange tube material (P), and the corrugated fin (F) is performed (see FIG. 12).

  In the case of the car air conditioner capacitor shown in FIG. 13, after the temporary assembly, the partition plates (56) and (57) are inserted from the outside into the partition plate insertion holes formed in the header (H), and heat exchange with the header (H) is performed. Tube material (P), header (H) and partition plates (56) (57), heat exchange tube material (P) side wall forming part (62), heat exchange tube material (P) ridges (63) The heat exchange tube material (P) and the fins (F) are manufactured by brazing together, and the heat exchange tube material (P) forms a flat heat exchange tube (52).

  The manufactured condenser constitutes a refrigeration cycle together with a compressor and an evaporator, and is mounted on a vehicle as a car air conditioner.

  In the above embodiment, other hydraulic cylinders such as air cylinders can be used instead of all the hydraulic cylinders.

  The temporary assembling apparatus according to the present invention is also applicable to the case where the flat heat exchange tube material shown in FIG. 16 is used.

  In FIG. 16, the flat heat exchange tube material (P1) connects two flat wall forming portions (70) forming a flat wall and the two flat wall forming portions (70) and forms one side wall. A side wall forming part (72) formed by bending the side edge of the connecting part (71) and the side opposite to the connecting part (71) in each flat wall forming part (70) and forming the other side wall; A plurality of ridges (73) formed by bending the flat wall forming portion (70) with an interval in the width direction of each flat wall forming portion (70) and projecting in the same direction as the side wall forming portion (72) ) Is bent into a hairpin shape at the connecting portion (71) so that the side wall forming portions (72) are brought into contact with each other, and the protrusion (73) of one flat wall forming portion (70) is Are the other flat wall forming portion (70) and the protrusion (73) of the other flat wall forming portion (70) are brought into contact with the one flat wall forming portion (70), respectively. In the metal plate in a state before being bent to form the heat exchange tube material (P1), the protrusions (73) of one flat wall forming portion (70) and the other flat wall forming portion (70) The protrusion (73) is at a position that is asymmetric with respect to the center line in the width direction of the metal plate.

  Moreover, the temporary assembly apparatus by this invention is applicable also when the flat-shaped heat exchange tube raw material shown in FIG. 17 is used.

  In FIG. 17, the flat heat exchange tube material (P2) has one first flat wall forming part (80) forming one flat wall and approximately half the width of the first flat wall forming part (80). Two second flat wall forming portions (81) having the other flat wall, and connecting the first flat wall forming portion (80) and both the second flat wall forming portions (81), respectively, and 2 Two connecting portions (82) forming two side walls, and a second flat wall forming portion (81) provided on the side edge of each second flat wall forming portion (81) opposite to the connecting portion (82). The metal plate having the ridges (83) rising with respect to the ridges is bent at both connecting portions (82), and the side edges of the second flat wall forming portion (81) on the ridge (83) side abut each other. In addition, the ridges (83) are brought into close contact with each other, and the tip portions of both ridges (83) are brought into contact with the first flat wall forming portion (80).

  The metal plates forming the heat exchange tube materials (P1) and (P2) shown in FIGS. 16 and 17 are formed from an aluminum brazing sheet having a brazing material clad on both sides.

  Furthermore, the flat heat exchange tube material to which the temporary assembly device according to the present invention is applied is not limited to the above-described material, and can also be applied to the case where a flat heat exchange tube material made of an extruded profile is used. is there. Extruded heat exchanger tube material is manufactured by cutting a long extruded shape into a predetermined length, and the cut end may be deformed during cutting and may not be inserted into the insertion hole of the header. . Moreover, the temporary assembly apparatus by this invention is flat heat exchange which combines two plate-shaped structural members, as FIG. 13 and FIG. 14 of patent document 1 show paragraph 0045-0054 of patent document 1, and FIG. The present invention can also be applied when a pipe material is used. This heat exchange tube material is manufactured by cutting a long combination made of two plate-shaped components into a predetermined length, and the cut end portion is deformed at the time of cutting and cannot be inserted into the insertion hole of the header. Sometimes. Furthermore, the temporary assembly device according to the present invention is also applicable to the case where a flat heat exchange tube material made of an electric sewing tube or a flat heat exchange tube material formed by bending a single plate is used. These heat exchange tube materials are sometimes produced by cutting a long tubular body into a predetermined length while the widthwise intermediate portion may swell, so that the cut end portion is deformed at the time of cutting. In either case, it may not be inserted into the insertion hole of the header.

  Furthermore, the pipe material correcting member according to the present invention can also be applied to the temporary assembly device described in Patent Document 2. In this case, on the outer side in the left-right direction of the guide, the pipe material correction member is disposed at a height position higher than the guide so as to be movable up and down.

  Moreover, what is shown in FIG. 18 and FIG. 19 can be used as a header of the heat exchanger temporarily assembled by the temporary assembly apparatus by this invention.

  In FIG. 18 and FIG. 19, tapered portions (inclined inward of the header (HA) toward the other side edge at two side edges in the hole width direction of the insertion hole (H1) in the header (HA). H2) is integrally formed, and guides (H3) are integrally formed at the tips of both tapered portions (H2). The mutually opposing surfaces (H4) of both guides (H3) are located on a surface orthogonal to the center line of the header (HA). Both inner and outer peripheral surfaces of the header (HA) are covered with a brazing material layer. In the case of such a header (HA), the heat exchange material (P) (P1) (P2) is smoothly inserted into the insertion hole (H1). In addition, after temporary assembly, when the header (HA) and the heat exchange material (P) (P1) (P2) are brazed, the molten brazing material is between the taper part (H2) and the heat exchange tube material. Since the fillet (H6) is formed as shown by the chain line in FIG. 18, the brazing strength between the formed heat exchange pipe (52) and the header (HA) is improved. .

It is a partially notched top view which shows the temporary assembly apparatus of the heat exchanger by this invention. It is the vertical sectional view similarly seen from the front. It is an AA line expanded sectional view of FIG. It is a partial notch partial enlarged front view which shows the state which the pipe raw material position adjustment apparatus rose after the heat exchange pipe raw material was arrange | positioned at the pipe raw material guide. It is a top view which shows the state by which the corrugated fin has been arrange | positioned between the heat exchange pipe | tube raw materials supported by the support table. It is a top view which shows the state by which the heat exchange pipe | tube raw material by which the right-and-left both ends were pressed by the pipe | tube raw material pressing member was moved ahead. It is a partial expansion perspective view which shows the state immediately before lowering | hanging a pipe | tube raw material correction member. It is a partial expanded side view which shows the state just before the edge part of a heat exchange pipe | tube raw material is inserted in the slit for pipe | tube raw material insertion. It is a partially cutaway partial enlarged front view showing a state in which the end of the heat exchange tube material is inserted into the tube material insertion slit by lowering the tube material correction member. It is a partially notched part enlarged front view which shows the state by which the edge part of the heat exchange tube raw material was inserted in the insertion hole of a header. It is a partial notch partial enlarged front view which shows the state by which the pipe raw material correction member was raised and the header receptacle was moved to the left-right direction outward. It is a top view which shows the header temporarily assembled on the supporting member, the heat exchange raw material, and a corrugated fin. It is a perspective view which shows the capacitor | condenser for car air conditioners. It is a perspective view which shows a heat exchange tube raw material. It is a fragmentary top view which shows the problem at the time of using the conventional temporary assembly apparatus. It is a perspective view which shows the modification of a heat exchange tube raw material. It is a perspective view which shows the other modification of a heat exchange tube raw material. It is a partial expanded longitudinal cross-sectional view which shows the modification of a header. It is the BB sectional view taken on the line of FIG.

(2): Support member
(3): Header receiver
(16): Horizontal axis
(17): Arm
(18): Pipe material holding member
(19): Pipe material straightening member
(23): Pipe material insertion slit
(23a): Tapered part
(28): Compression coil spring
(F): Fin
(H) (HA): Header
(H1): Insertion hole
(P) (P1) (P2): Flat heat exchange tube material
(X): Taper angle of tapered part
(Y): Depth of the portion excluding the tapered portion of the tube material insertion slit

Claims (13)

A pair of headers arranged in parallel and spaced from each other, and arranged in parallel between both headers and brazed to both headers with both ends inserted into insertion holes formed in both headers. When manufacturing a heat exchanger comprising a plurality of flat heat exchange tubes and fins brazed to the heat exchange tubes and disposed between adjacent heat exchange tubes, the header and the flat heat exchange An apparatus for temporarily assembling a tube material and fins to a state before brazing,
A plurality of flat heat exchange tube materials arranged side by side in front and back so that the length direction faces the left and right direction, the width direction faces the up and down direction, and both left and right ends are at the same position, and adjacent heat exchange A supporting member for supporting fins arranged between the tube materials, a header receiver arranged so as to be movable in the left and right directions on both the left and right sides of the supporting member, and a plurality of slits for inserting a plurality of tube materials in the front and rear direction Is provided with a pair of left and right tube material correction members formed from one side edge at the same interval as the heat exchange tube of the heat exchanger to be manufactured in the front-rear direction, The correction position where the left and right ends of all the heat exchange tube materials supported by the support member fit into the tube material insertion slit and the non-correction position where the heat exchange tube material does not fit into the tube material insertion slit Not to move between And has a tube material straightening member is temporarily assembled device of the heat exchanger is movable in the lateral direction when in the correct position. The width of the opening of the tube material insertion slit is larger than the maximum thickness of the flat heat exchange tube material, and the end of the tube material insertion slit on the opening side gradually widens toward the opening. The temporary assembly apparatus of the heat exchanger as described in 1. 3. The temporary heat exchanger according to claim 2, wherein a portion gradually expanding toward the opening at the opening side end of the tube material insertion slit is tapered, and the taper angle of the tapered portion is 10 to 20 degrees. Assembly device. The temporary assembly device for a heat exchanger according to claim 3, wherein a depth of a portion excluding the tapered portion of the tube material insertion slit is equal to or greater than a width of the heat exchange tube material. The temporary assembly device of a heat exchanger according to any one of claims 1 to 4, wherein the tube material correcting member is urged outward in the left-right direction by the urging member when the tube material correcting member is in the correction position. A tube material correction member is provided on a tube material pressing member that is long in the front-rear direction, and the tube material pressing member is placed on the left and right ends of all the heat exchange tube materials supported by the support member; It is movable between a second position away from the top of all the heat exchange tube materials, and the tube material correction member moves up and down with respect to the tube material press member when the tube material press member is in the first position. And the temporary assembly apparatus of the heat exchanger in any one of Claims 1-5 made into the non-correction position in the raising position while taking the correction position in the down position . The tube material holding member is fixed to the tip of the arm that is disposed on the outer side of the header receiver in the left-right direction and is pivotably mounted about the axis of the horizontal axis extending in the front-rear direction. The temporary assembly device for a heat exchanger according to claim 6 , wherein the temporary assembly device is configured to move between a first position and a second position . A pair of headers arranged in parallel and spaced from each other, and arranged in parallel between both headers and brazed to both headers with both ends inserted into insertion holes formed in both headers. A plurality of flat heat exchange tubes and fins that are disposed between adjacent heat exchange tubes and brazed to the heat exchange tubes, and the heat exchange tubes are a pair of flat plates facing each other. In manufacturing a heat exchanger having a wall and two side walls extending across both side edges of both flat walls, the header, the flat heat exchange tube material, and the fins are temporarily assembled in a state before brazing. A method,
The apparatus according to any one of claims 1 to 7, wherein the length direction is in the left-right direction, the width direction is in the up-down direction, and the left and right ends are in the same position in front and back. Supporting a plurality of flat heat exchange tube materials arranged on the fins and fins arranged between adjacent heat exchange tube materials on a support member;
Both header receivers are separated from each other, and headers are placed on both header receivers,
Fitting the right and left ends of all the heat exchange tube materials supported by the support member into the tube material insertion slits by moving the tube material correction members to the correction position;
And the temporary assembly method of the heat exchanger including inserting both the end portions of the heat exchange tube material into the insertion holes of the header by moving both header receivers inward in the left-right direction . The heat exchange tube material has two flat wall forming portions that form flat walls, a connecting portion that connects the two flat wall forming portions and forms one side wall, and a side opposite to the connecting portion in each flat wall forming portion. One metal plate having a side wall forming portion that is integrally provided on each side edge so as to protrude from the flat wall forming portion and that forms the other side wall is bent into a hairpin shape at the connecting portion, thereby forming the side wall forming portion. The method for temporarily assembling a heat exchanger according to claim 8, wherein the heat exchanger is formed by abutting each other . The heat exchanger temporary assembly method according to claim 9 , wherein the metal plate is formed by rolling an aluminum brazing sheet having a brazing filler metal layer on both sides . The manufacturing method of the heat exchanger characterized by brazing the header temporarily assembled by the method in any one of Claims 8-10, a heat exchange pipe | tube raw material, and a fin . The heat exchanger manufactured by brazing the header temporarily assembled by the method in any one of Claims 8-10, a heat exchange pipe | tube raw material, and a fin . A vehicle comprising a refrigeration cycle having a compressor, a condenser and an evaporator, wherein the condenser comprises the heat exchanger according to claim 12 .

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