JP2901532B2 - Pallets for heat exchanger assembly - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet for assembling a heat exchanger used for assembling a parallel flow type heat exchanger used as a condenser for a car cooler.

[0002]

2. Description of the Related Art As a condenser for a car cooler, FIG.
There is a parallel flow type heat exchanger (C) as shown in FIG.
This heat exchanger (C) has a pair of hollow headers (1) (1) at both ends of a heat exchanger core (5a) in which flat tubes (2) and corrugated fins (3) each having an oval cross section are alternately stacked. ) Are connected to form a heat exchanger body (5), and the header (1) of the body (5) has refrigerant inlet / outlet pipes (6a) (6b) and connection unions (6c) (6).
d) Attached components (6) such as vehicle body assembly brackets are connected and fixed.

In such a heat exchanger (C), headers (1) and (1) are assembled on both sides of alternately stacked tubes (2) and fins (3), and the heat exchanger body (temporarily assembled) is provided. (5) a temporary assembling step of obtaining the heat exchanger body (5), a banding / temporary attaching step of winding a band (33) such as an iron band around the heat exchanger body (5) in a temporarily assembled state, and temporarily attaching an attached part (6); The product is manufactured through a brazing (brazing) process of joining and integrating the tacked products by a brazing process in a furnace or the like. The work in the banding / tacking process is carried by a conveyor. It is customary to carry out on an assembly pallet (10).

A conventional assembly pallet (10) is provided with a pallet body (12) on a substrate (11) on which a heat exchanger body (5) in a temporarily assembled state can be placed. ) Are provided with a plurality of band setting grooves (12a) along the front-rear direction. Further substrate (11)
A stopper (13) capable of locking the front end side of the heat exchanger body (5) is provided on the front side (front side) of the pallet body (12), and the pallet body (1) is provided.
On both sides of (2), in addition to header positioning means (14) for engaging and positioning the header (1), an attached part support for supporting the attached part (6) at a predetermined temporary attachment position. The means (15) are fixed. The substrate (1
1) On the other side (rear side) of the pallet body (12) on the upper side, a clamp mechanism (1) in which the clamp body (16b) moves forward and backward by the raising / lowering operation of the lever (16a).
6) is attached.

[0005] When banding / temporary work is performed using this assembling pallet (10), first, the contact plate (3) is used.
1) is set on the pallet body (12) and locked on the stopper (13), and the heat exchanger body (5) is arranged so that the front end thereof is along the backing plate (31). A backing plate (32) is arranged at the rear end of the heat exchanger body (5). In this state, the clamp body (16b) is advanced to fix the heat exchanger core (5a) in a compressed state to a predetermined size, and then the iron band (33) housed in the band installation groove (12a) is removed. Then, it is wound around the heat exchanger body (5) together with the backing plates (31) and (32).

Next, a refrigerant inlet / outlet pipe (6) supported at a predetermined position by an attached part support means (15) of the pallet body (12).
a) Temporarily attach the attached component (6) such as (6b) to the header (1) by spot welding or clipping.

[0007] After the banding / temporary bonding process is completed in this way, it is transferred to the brazing process.

[0008]

The type of heat exchanger (C) manufactured by the above-mentioned process differs depending on the type of automobile to which the heat exchanger (C) is applied. Of course, the shape, size, mounting position, etc. of the attached parts (6) such as the refrigerant inlet / outlet pipe, connection union, and bracket attached to the header (1) are also different. For this reason, when changing the manufacturing model, it is necessary to appropriately change the shape, size, arrangement position, and the like of the attached component support means (15) provided on the assembly pallet (10) side. (1
0) is formed by joining and integrating the pallet components such as the pallet body (12) and the attached component support means (15). Therefore, when the model is changed, the assembling pallet (10) itself is replaced. There is a need.

However, the conventional pallet for assembly (1)
0) is a very high weight of 25 to 40 kg per vehicle, and has a width of 700 mm, a length of 800 mm, and a height of 40 to 1
Since it is a very large size of about 00 mm, the burden on a person who performs pallet replacement work (setup work) increases. In addition, the work must be performed on all pallets (10) on the production line, and the burden on the setup operator is further increased, resulting in a problem that the work efficiency is reduced.

Further, there are many types of heat exchangers (C), and it is necessary to prepare a large number of pallets (10) for each type, so that the required number of pallets (10) is enormous. Become. For this reason, a storage space for storing the pallet (10) becomes large, and there arises a problem that management becomes difficult.

Further, when a new model is manufactured as a heat exchanger, it is necessary to manufacture a pallet (10) corresponding to the model from scratch, resulting in an increase in manufacturing cost and a prolonged manufacturing period. was there.

The present invention solves the above-mentioned problems of the prior art, can easily cope with a change in the model of a heat exchanger to be manufactured, can improve the working efficiency, and can easily perform storage and management. An object of the present invention is to provide a heat exchanger assembling pallet capable of reducing a manufacturing cost and a manufacturing period.

[0013]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a heat exchanger in a tentatively assembled state in which a pair of headers are connected to both ends of a heat exchanger core in which tubes and fins are alternately stacked. A heat exchanger assembling pallet for temporarily attaching additional parts such as a bracket, a heat medium inlet / outlet pipe, and a connection union to an exchanger body, the pallet base being provided at an intermediate portion of an upper surface of the pallet base. A common plate for mounting and supporting the heat exchanger core, and a model-specific plate for being removably mounted on both sides of the upper surface of the pallet base and for mounting and supporting both sides of the heat exchanger body. Wherein the model-specific plate is provided with additional component support means for supporting the additional component at a predetermined temporary attachment position.

In the heat exchanger assembling pallet of the present invention, common parts that can be used in common irrespective of the type of heat exchanger to be manufactured, that is, pallet bases and common plates, and special parts that differ depending on the manufacturing model, that is, dedicated A plate is provided, and a dedicated plate is detachably provided to the pallet base. Therefore, when a manufacturing model is changed, it can be easily dealt with only by replacing only the dedicated plate. Therefore, for example, it is not necessary to replace the assembly pallet itself which is heavy and large in size, and the burden on the setup operator can be reduced.

Further, the only equipment that needs to be stored is a dedicated plate that is lightweight and small in size, and requires a small storage space and can be easily managed.

When a new model is manufactured as a heat exchanger, it is not necessary to manufacture all the pallets, but only the special plate, so that the manufacturing cost and the manufacturing period can be reduced.

[0017]

1 to 3 show a pallet (50) for assembling a heat exchanger according to an embodiment of the present invention.

As shown in these figures, the assembling pallet (50) has a base plate (51), and a pallet base (52) is fixed on the base plate (51) in a frame shape. I have.

As shown in FIG. 4, a pallet base (52)
Are two side plates (52a) and (52a) arranged along both sides of the base plate (52) in the front-rear direction, and a front plate arranged so as to bridge between the two side plates (52a) and (52a). (52b) and a rear plate (52c), and plate mounting steps (53) are provided inside the upper ends of the front and rear plates (52b) and (52c).

As shown in FIGS. 1 to 3, the pallet base (52) has a fixed type common plate (60) arranged in the center and a detachable model-specific plate (70) arranged on both sides. ) And (80).

As shown in FIGS. 5 and 6, the common plate (60) includes first to fourth plate members (61) to (61).
(64). The first plate member (61) arranged at the center has a band installation groove (65) formed in the middle along the front-rear direction, and the front end of the heat exchanger body (5) is formed at the front. A stopper (66) capable of locking the side is protruded. Also the second
The plate member (62) has a width dimension set to 100 mm, which is half the width dimension (200 mm) of the first plate member (61), and the third plate member (63).
The width dimension of the fourth plate member (64) is set to 25 mm, which is half the width of the fourth plate member (64).

In this embodiment, the front and rear ends of the first plate member (61) are connected to the front and rear plates (52b) (5).
The second to fourth plate members (64) are fixed in a state where they are arranged so as to be fitted into the plate mounting steps (53) in 2c), and further correspond to the width of the heat exchanger (C) to be manufactured. )), An appropriate plate member is an appropriate number,
It is sequentially attached to both sides of the first plate member (61).

For example, a common plate (60) shown in FIG.
Is constituted by two second plate members (62) and (62) and one fourth plate member (64) in addition to the first plate member (61). The second plate members (62) (6) are provided on both sides of the member (61).
2), and one second plate member (6)
2) A fourth plate member (64) is arranged on one side (right side).

For reference, in this embodiment,
As the common plate (60), the first plate member (6
1) and the second to fourth plate members (62)
To (64) are prepared two by two, and by combining these, all models of the existing heat exchanger (C) can be handled.

As shown in FIG. 7A, the left exclusive plate (70) is provided in a region corresponding to the periphery of the left header (1) of the heat exchanger body (5).
A band installation groove (75) is formed along the front-rear direction, and a stopper (76) that can lock the front end side of the heat exchanger body (5) is protruded from the front part. Further, a header installation portion (77) for installing the header (1) is formed in parallel with the band installation groove (75), and the header (1) is provided outside the installation portion (77). ) Is provided with a plurality of header positioning means (78) for locking and positioning.

As shown in FIGS. 1 to 3, the right edge of the dedicated plate (70) having the above-described structure is connected to the common plate (6).
The exclusive plate (70) is placed in a state of contacting the left edge of (0).
The front and rear ends of the pallet base (52)
2b) Plate mounting step (53) in (52c)
The exclusive plate (70) is detachably attached by means such as screwing in this state.

As shown in FIGS. 7 (b) and 7 (c), the right exclusive plate (80) is provided in a region corresponding to the periphery of the right header (1) in the heat exchanger body (5). A band installation groove (85) is formed along the front-rear direction, and a stopper (86) that can lock the front end side of the heat exchanger body (5) protrudes from the front part. Further, a header installation portion (87) for installing the header (1) is formed in parallel with the band installation groove (85), and the header (1) is provided outside the installation portion (87). A header positioning means (88) is provided to protrude from the header for locking and positioning. Further, an attached component support means (90) is provided outside the header installation portion (87) in the dedicated plate (80). The additional component support means (90) is provided with an additional component (6) connected to the header (1) of the heat exchanger body (5), for example, the refrigerant inlet / outlet pipes (6a) (6b), the connection union (6c) ( 6d) for supporting a vehicle body assembling bracket or the like in a predetermined position at a predetermined position at the time of temporary attachment. In the illustrated embodiment, the union (6) is used.
c) a union support base (91) for supporting the union (6), a union pressing spring (92) for positioning the union (6c) on the base (91), and a pipe for supporting the refrigerant inlet / outlet pipe (6b). A support stand (93), a union arrangement hole (94) for disposing the union (6d) at a predetermined position, a union pressing spring (95) for positioning the union (6d) in the hole (94), and the like. I have it.

As shown in FIGS. 1 to 3, the left side edge of the exclusive plate (80) having the above-mentioned structure is connected to the common plate (6).
The exclusive plate (80) is placed on the right side edge of (0).
The front and rear ends of the pallet base (52)
2b) Plate mounting step (53) in (52c)
The exclusive plate (80) is detachably attached in this state by means such as screwing.

As shown in FIGS. 8 and 9, a clamp mechanism (100) provided at the rear of the assembly pallet (50).
Has a clamp support substrate (101), and a vertical plate (101) is provided on both lower surfaces of the clamp support substrate (101).
a) (101a) are attached along the inside of both side plates (52a) (52a) of the pallet base (52).

On the other hand, both side plates (5) of the pallet base (52)
2a) and (52a) include the clamp support substrate (10
Slots (55) (55) extending in the front-rear direction corresponding to (1).
Are formed. In addition, handle with screw (56) (5
The screw shaft 6) is inserted from the outside into the long holes (55) (55), and is screwed to the nuts (101b) (101b) embedded in the vertical plates (101a) (101a).

The screw shafts of the handles (56) and (56) move along the long holes (55) and (55).
The clamp support substrate (101) is configured to be slidable in the front-rear direction. Furthermore, handle (56) (5
6), the screw axis is set to the vertical plate (101).
a) In the state where the nuts (101b) and (101b) of (101a) are firmly fastened, the handles (56) and (56)
However, it is configured such that it can be pressed against the pallet base (52) to fix the clamp support substrate (101) at a desired slide position.

Guide members (102) are fixed to both sides of the upper surface of the clamp support substrate (101). A slide plate (103) is slidably attached to the guide members (102) in the front-rear direction. ing. In the center of the slide plate (103), a long hole (10
4) is formed, and front and rear frames (105) and (105) are fixed at positions before and after the long hole (104). Further, the rotating shaft (10) attached to the clamp support substrate (101)
6) is disposed on the slide plate (103) through the elongated hole (104), and the upper end of the rotating shaft thereof is positioned between the front and rear frames (105) (1).
05) is fixed to the cam (107) arranged between them. By rotating a lever (108) fixed to the rotating shaft (106), the cam (107) is rotated, and the front and rear frames (105) and (105) are pushed by the cam (107), and the slide plate (105) is pushed. 103) is configured to slide back and forth.

The front end of the slide plate (103) is provided with a plurality of clamp receivers (11) so as to protrude forward.
1) is detachably attached, and a clamp body (110) is attached to the tip of each clamp receiver (111). Clamp holder (111)
Is configured to be attachable to any position of the front edge of the slide plate (103).

The assembling pallet (50) of the present embodiment configured as described above is set on a conveyor in a banding / tacking process during the manufacturing process of the heat exchanger (C). On (50), the operation described below is performed.

First, the contact plate (31) is moved to the stopper (66).
(76) so that the common plate (6)
0) and dedicated plates (70) and (80), and the heat exchanger body (5) is placed on the plates (60) (70) (80) so that the front end thereof is locked to the backing plate (31). Place on. At this time, the headers (1) and (1) are placed at predetermined positions so as to be engaged with the corresponding header positioning means (78) and (88).

Next, after the backing plate (32) is arranged at the rear end of the heat exchanger body (5), the lever (108) of the clamp mechanism (100) is rotated to operate the clamp body (11).
0) is advanced to fix the heat exchanger core (5a) composed of the tubes (2) and the fins (3) in a compressed state to a predetermined size.

Then, in this state, the band setting groove (65)
(75) An iron band (3) housed along (85).
3) is wound around the heat exchanger body (5) together with the backing plates (31) and (32).

Next, the attached parts (6) such as the refrigerant inlet / outlet pipes (6a) (6b) supported by the attached part supporting means (90) at a predetermined temporary attachment position are fixed to the header (1) by spot welding, clipping, or the like. ).

In this way, the banding / temporary bonding step is completed, and thereafter, the sheet is conveyed to the next brazing step.

In the present embodiment, various types of dedicated plates (70) and (80) are prepared according to the type of the heat exchanger (C) to be manufactured.

When the production model of the heat exchanger (C) is changed, the special plates (70) and (80) are replaced with those corresponding to the production model, and if necessary, the width of the common plate (60) is changed. Adjustment and clamping mechanism (10
The position adjustment of 0) is performed.

After such a setup operation is performed on all the pallets (50) on the production line, the production is started.

As described above, in the assembling pallet (50) of the present embodiment, common parts that can be used in common regardless of the type of the heat exchanger (C) to be manufactured, that is, the base plate (51) and the pallet base (52), a common plate (60), a clamping mechanism (100), etc., and special parts that differ depending on the production model, that is, special plates (70) and (80). Exclusive plate (70) (8)
0) is configured to be detachable. Therefore, when changing the production model, basically, the special plate (70)
Since it can be dealt with only by replacing (80) alone, there is no need to replace the assembly pallet itself which is heavy and large in size as in the past, so that the burden on the setup operator can be greatly reduced and the working efficiency is improved. be able to.

The clamp mechanism (100) is attached to the pallet base (52) so as to be slidable in the front-rear direction and to be fixed at an arbitrary slide position. By adjusting the mounting position, the operation of compressing and fixing the heat exchanger core (5a) can be reliably performed.

By appropriately combining the plate members (61) to (64) constituting the common plate (60), the width of the common plate (60) can be accurately adjusted to the width of the model to be manufactured. And the heat exchanger bodies of all types can be installed in a stable state.

In this embodiment, the equipment that needs to be stored is a special plate (70) (80) having a size of about 1/5 to 1/10 of the entire pallet or a part of the common plate (60). Plate member), which are lighter and smaller in size than the entire pallet, and even if the number of storage is large, the storage space is small,
It is easy to manage.

In this embodiment, when a new model is manufactured as a heat exchanger, the common parts can be used as they are, so it is sufficient to manufacture only a dedicated plate. Therefore, the pallet manufacturing cost and the manufacturing time can be reduced.

For reference, when using a manufacturing line in which about 10 pallets for assembly are installed, if the pallets themselves are replaced as in the past when changing models, it takes about one hour for two workers. Setup time was required. On the other hand, according to the present embodiment, all pallets can be changed (set up) in 6 to 7 minutes. In addition, this setup work did not require a dedicated worker, and could be easily performed only by workers involved in the production line.

Further, according to the present embodiment, the storage space can be reduced to 1/10 to 1/20 of that of the conventional one, and the storage can be performed in a state of being arranged on a shelf or the like.

When a new type of assembly pallet is manufactured, the method according to the present embodiment, in which only a dedicated plate is manufactured, reduces the manufacturing cost by 1/2 to 1 in comparison with a conventional apparatus in which the entire pallet is manufactured. It was reduced to about / 3.

[0051]

As described above, according to the heat exchanger assembling pallet of the present invention, the pallet base and the common plate which can be used in common regardless of the type of the heat exchanger to be manufactured, and the dedicated pallet which differs depending on the manufacturing model. A plate is provided, and the dedicated plate is configured to be detachable from the pallet base. Therefore, when the production model is changed, it can be easily dealt with only by replacing only the dedicated plate. For this reason, for example, it is not necessary to replace a heavy-weight, large-sized pallet itself, so that the burden on the setup operator can be reduced and the working efficiency can be improved. In addition, the only equipment that needs to be stored is a dedicated plate that is lightweight and small in size, requiring a small storage space and can be easily managed. Further, when a new model is manufactured as a heat exchanger, it is not necessary to manufacture all the pallets, but only the special plate, so that there is an effect that the manufacturing cost can be reduced and the manufacturing period can be shortened.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an assembling pallet according to an embodiment of the present invention in a state where a heat exchanger disposed therein is detached.

FIG. 2 is an exploded perspective view showing an assembly pallet according to the embodiment.

FIG. 3 is a plan view showing an assembly pallet according to the embodiment.

4A and 4B are views showing a pallet base in the assembly pallet of the embodiment, wherein FIG. 4A is a plan view and FIG.
4A is a cross-sectional view taken along the line II of FIG. 4A, and FIG.
FIG. 2A is a sectional view taken along line II-II of FIG.

5A and 5B are views showing a common plate in the assembly pallet according to the embodiment, wherein FIG. 5A is a plan view and FIG.
Is a front view.

6A and 6B are a plan view and a front view showing constituent members of a common plate in the assembly pallet of the embodiment, wherein FIGS. 6A and 6B show a first plate member, and FIG. (H) is a figure which shows the 2nd thru | or 4th plate members.

7A and 7B are views showing a dedicated plate in the assembly pallet of the embodiment, wherein FIG. 7A is a plan view showing a left-side dedicated plate, FIG. 7B is a plan view showing a right-side dedicated plate, FIG. 7C is a front view showing the right exclusive plate.

8A and 8B are diagrams showing a clamping mechanism in the assembly pallet according to the embodiment, wherein FIG. 8A is a plan view and FIG.
Is a front view.

FIG. 9 is a side view showing a clamp mechanism in the assembly pallet of the embodiment.

FIG. 10 is a perspective view showing a conventional assembling pallet in a state where a heat exchanger arranged therein is detached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Header 2 ... Tube 3 ... Fin 5 ... Heat exchanger body 5a ... Heat exchanger core 6 ... Attached parts 6a, 6b ... Refrigerant inlet / outlet pipe 6c, 6d ... Connection union 50 ... Pallet for assembly 51 ... Pallet base 60 ... Common plate 70, 80 ... Dedicated plate 90 ... Attached part support means C ... Heat exchanger

Claims (1)

(57) [Claims] 1. A heat exchanger body in a temporary assembly state in which a pair of headers are connected to both ends of a heat exchanger core in which tubes and fins are alternately stacked, a bracket, a heat medium inlet / outlet pipe, a connection union, and the like. A pallet for assembling a heat exchanger for temporarily attaching the attached parts, comprising: a pallet base; and a common plate provided at an intermediate portion on an upper surface of the pallet base for mounting and supporting the heat exchanger core. And a model-specific plate that is detachably attached to both sides of the upper surface of the pallet base, and that mounts and supports both sides of the heat exchanger main body. A pallet for assembling a heat exchanger, provided with additional component support means for supporting the pallet at a temporary mounting position.