JP5227440B2 - Body and power plant coupling method and coupling facility - Google Patents

Description

  The present invention relates to a method for connecting a vehicle body and a power plant and a connecting facility in an automobile.

  As shown in FIG. 12, conventionally, when a power plant P in which a power drive system such as an engine and accessories are pre-assembled on a subframe F (see FIG. 10) is mounted on a side frame S on the vehicle body side, The carriage 100 on which the power plant P is placed is pulled up in the direction of the vehicle body by the lifting device 101 with respect to the vehicle body W suspended and moved in the hollow by the transport hanger H of the conveyor C / V. As shown in FIGS. 6, 8, and 9, stud bolts ST planted on the power plant P side are attached to the mounting holes BR <b> 1 of the left and right brackets BR arranged in advance on the side frame S on the vehicle body side. Insert. In this state, from below, the operator fastens the sub-frame F (FIG. 10) to the vehicle body W with the bolt B1 (FIG. 10), and further fastens the nut N to the stud bolt ST to connect the vehicle body W and the power plant P. Is going.

  As shown in FIG. 12, a hanger H on which a vehicle body W is mounted and a carriage 100 on which a power plant P is mounted are arranged so that the mounting work BR1 of the bracket BR and the axis of the stud bolt ST coincide with each other. Is carried out in a pre-positioned state. However, due to the positional deviation of the vehicle body W on the hanger H during conveyance, the positional deviation of the power plant P on the carriage 100, or the manufacturing error of the vehicle body W and the power plant P, FIG. In some cases, the mounting holes BR1 of the bracket BR shown in FIG. If the vehicle body W and the power plant P are to be coupled in a state where the shaft center is displaced, a so-called galling occurs between the stud bolt ST and the mounting hole BR1, and the stud bolt ST is mounted on the mounting hole BR1. It becomes difficult to insert the sub-frame F to the end portion, and there arises a problem that the sub-frame F cannot be fastened to the vehicle body W by the bolt B1 through the attachment hole F1 of the sub-frame F.

  For this reason, conventionally, an operator grasps the positional relationship between the mounting hole BR1 and the stud bolt ST from the lower side of the vehicle body, and the vehicle 100 while manually swinging the vehicle body W on the hanger H or the power plant P on the vehicle 100. Is lifted to eliminate the galling, and the stud bolt ST is inserted into the mounting hole BR1 up to its base end and fastened with a nut N. However, since this work form is a work while looking up at the positions of the mounting hole BR1 and the stud bolt ST from below, the worker is forced to take a difficult posture. In addition, since the stud bolt ST is laid out on the upper side of the power plant P, the power plant P blocks the field of view when looking up from below, making it extremely difficult to visually recognize the occurrence of galling. In some cases, the situation may cause galling many times.

  With respect to this problem, Patent Literature 1 discloses that the screw portion of the stud bolt is composed of a main screw portion and a small-diameter screw portion on the distal end side, and the screw shape of the small-diameter screw portion is formed in a trapezoidal shape or the like. It is possible to make the contact with the mounting hole a contact at an obtuse angle part, and a technique for suppressing biting due to plastic deformation and preventing galling is disclosed.

  Patent Document 2 discloses a technique in which an engine unit is lifted and moved by a lifting means such as a chain, and lowered to a predetermined position in an engine room of a vehicle body for assembly. When installing the engine, while lowering the engine onto the vehicle body side frame, insert stud bolts that are pre-installed on the vehicle body side into the bolt holes of the bracket projecting on the left and right sides of the engine body, and tighten the engine with nuts. It is designed to be connected to the car body. And, for the efficiency of work, when using stud bolts with different lengths, when the lifted engine is lowered in the mounted position, the longer stud bolt is inserted through the bolt hole of the bracket first. The engine is displaced so that the shorter stud bolt can be smoothly inserted into the bolt hole.

JP 2005-42848 A JP-A-8-300954

  However, even in the technique of Patent Document 1, galling still occurs when the positional deviation is large, and the problem of the operator's difficult posture of working while looking up from below still remains.

  Even in the technique of Patent Document 2, the problem of galling due to misalignment is not solved. To solve this problem, it is necessary for the operator to swing the engine, which is a troublesome work. In addition, the mounting method described in Patent Document 2 is a technique that can be adopted only when the engine alone is mounted. For the purpose of improving the working posture, reducing man-hours, and shortening the body assembly line length, It cannot be adopted when a power plant in which auxiliary machines are assembled in advance on a subframe with a small assembly line is mounted on a side frame on the vehicle body side.

Further, in the prior art described with reference to FIGS. 6 to 12, the nut N is fastened to the stud bolt ST after the subframe F is temporarily fastened to the vehicle body W with the bolt B1 via the mounting hole F1. As shown in FIG. 12, the worker climbs up on the work table D and performs the final fastening, and is accompanied by work at a high place, so that the scaffolding is likely to be limited. The reason why the bolt B1 is not fully tightened from the beginning is that the nuts N cannot be tightened with accurate torque unless the nuts N are fastened to the stud bolts ST with the vehicle body W and the power plant P facing each other. If the nuts N cannot be tightened with an accurate torque, there is a risk that the drive system will be displaced and abnormal vibrations or noises may occur. Therefore, conventionally, in order to make the vehicle body W and the power plant P face each other, the pressing device 102 that presses the power plant P from below to the vehicle body W at 9.8 m / s ² is necessary, which tends to be a costly method. There is a problem. Further, after the nut N is fastened to the stud bolt ST, it is necessary to finally fasten the bolt B1 that has been temporarily fastened.

  The present invention has been created to solve the above-described problems, and an object of the present invention is to provide a vehicle body and power plant coupling method and a coupling facility capable of easily coupling the power plant to the vehicle body.

  In order to solve the above-mentioned problems, the present invention is a method of coupling a vehicle body and a power plant in which a power drive system and auxiliary equipment are assembled on a subframe, and for a power plant located at a floor level. The vehicle body is lowered from above, and the upper mounting portion of the power plant and the mounting hole on the vehicle body side are fastened by fastening means to unite them, and then the vehicle body is raised to lower the power plant lower mounting portion and the vehicle body side The mounting hole is fastened by fastening means.

  According to the present invention, since the vehicle body is lowered with respect to the power plant positioned at the floor level and the upper mounting portion of the power plant and the mounting hole on the vehicle body side are fastened by the fastening means, the worker positioned at the floor level Can easily visually recognize the state of displacement of the upper mounting portion of the power plant and the mounting hole on the vehicle body side from above. Since the vehicle body or the power plant can be swung with an easy posture for the adjustment work of the displacement, the work load is reduced. Then, by raising the vehicle body and fastening the lower mounting portion of the power plant and the mounting hole on the vehicle body side by the fastening means, the operator easily fastens the lower mounting portion of the power plant and the mounting hole on the vehicle body side. be able to.

Further, the present invention is a facility for coupling the vehicle body and a power plant in which a power drive system and auxiliary machinery are assembled on a subframe, and has an elevating means for placing the vehicle body so as to be movable up and down, possess a transport carriage for moving the floor level of the vehicle body conveying line on a mounting pallet for mounting a power plant, a transfer means for transferring the placement pallet conveying carriage, a, as the bond, the elevating A first stage in which the mounting pallet is transferred to the transport carriage by the transfer means while the vehicle body is lifted by the means and the power plant is positioned at a predetermined position; and an upper mounting portion of the power plant positioned at the predetermined position is The vehicle body in a state where the second stage in which the vehicle body is lowered toward the power plant by the elevating means so as to be inserted into the vehicle body side mounting hole, and the upper mounting portion of the power plant and the vehicle body side mounting hole are fastened A third step of increasing by lifting means, and performs in that order.
Further, in the present invention, in a state where the vehicle body is lifted by the lifting and lowering means, the mounting pallet is transferred to the transport carriage by the transfer means and the power plant is positioned at a predetermined position, and then the vehicle body is lowered by the lifting and lowering means. Fasten the upper mounting part of the power plant and the mounting hole on the vehicle body side by fastening means to unite them, and then raise the vehicle body by the lifting means to connect the lower mounting part of the power plant and the mounting hole on the vehicle body side. It is characterized by fastening by a fastening means.

  According to these inventions, since the vehicle body is lowered with respect to the power plant located on the transport carriage and the upper mounting portion of the power plant and the mounting hole on the vehicle body side are fastened by the fastening means, the work on the transport cart is performed. A person can easily visually recognize the state of positional deviation between the upper mounting portion of the power plant and the mounting hole on the vehicle body side from above. Since the vehicle body or the power plant can be swung with an easy posture for the adjustment work of the displacement, the work load is reduced. Then, by raising the vehicle body and fastening the lower mounting portion of the power plant and the mounting hole on the vehicle body side by the fastening means, the operator easily fastens the lower mounting portion of the power plant and the mounting hole on the vehicle body side. be able to.

  According to the present invention, the power plant can be easily coupled to the vehicle body, and it is possible to improve the coupling work efficiency and reduce the labor burden on the worker.

It is a top view which shows the Example of this invention. It is a side view which shows the Example of this invention. It is a principal part enlarged view of FIG. 1, and is a top view which shows the pallet carrying-in apparatus periphery. It is a principal part enlarged view of FIG. 1, and is a top view which shows the periphery of a pallet carrying-out apparatus. FIG. 3 is an enlarged view of a main part of FIG. 2, and is a side view showing the periphery of a second rodless cylinder. It is a top view which shows the coupling | bonding method of a vehicle body and a power plant. It is a bottom perspective view which shows the coupling | bonding method of a vehicle body and a power plant. It is an A section enlarged perspective view in FIG. It is the B section enlarged perspective view in FIG. It is a figure which shows the attachment hole with respect to the vehicle body of a side frame. It is a figure which shows the attachment state with respect to the vehicle body of a damper assembly. It is the schematic which shows the coupling | bonding method of the conventional vehicle body and a power plant.

  In FIG. 1, a vehicle body conveyance line L to which the present invention is applied is constituted by a floor conveyor provided at the floor level, for example, a known friction conveyor, and the like, and drive motors disposed on both sides of the conveyance carriage 1 in the conveyance direction. The conveyance carriage 1 travels and stops by the friction roller 3 (3a, 3b) rotated by 2 (FIG. 2). As shown in FIG. 2, wheels 1a are pivotally supported on the transport carriage 1, and the wheels 1a travel while being guided by the transport rails 1b. A lifting device 4 is disposed on each transport carriage 1, and the vehicle body W is positioned and placed on a plate-like placement portion 5 formed at the upper end of the lifting device 4.

  In FIG. 1, a power plant P in which a power drive system such as an engine and auxiliary machines are assembled in advance on the subframe F (FIG. 5) is positioned on the mounting pallet 6 at an appropriate position on the vehicle body transfer line L. A pallet carry-in device 20 for placing and carrying on the transport carriage 1 and a pallet carry-out device 30 for carrying the empty placement pallet 6 from the transport carriage 1 are provided. As shown in FIG. 5, a mounting table 8 for positioning and mounting the power plant P is disposed on the upper surface of the mounting pallet 6, a running roller 9 is pivotally supported on the lower surface, and 2 on the lower surface. A first engagement piece 10 and a second engagement piece 11 are formed in a projecting manner at the location.

  The pallet carry-in device 20 shown in FIG. 3 and the pallet carry-out device 30 shown in FIG. 4 both have an underground pit 40 arranged orthogonal to the vehicle body conveyance line L and a conveyance of the vehicle body conveyance line L that is opened in the underground pit 40. A mounting pallet including a hoistway 41 formed on the axis, a mounting carriage 42 on which the mounting pallet 6 is mounted, a belt conveyor laid in the underground pit 40, and the like, and transports the mounting carriage 42. It is arrange | positioned in the location corresponding to the hoistway 41 of the conveyance conveyor 43 and the mounting pallet conveyance conveyor 43, and the mounting cart 42 is between the transfer position of the mounting pallet conveyance conveyor 43, and the transfer position of the conveyance cart 1. And a lifting device 44 that moves up and down. A roller 44 a is laid on the upper surface of the lifting device 44.

  Referring to FIGS. 3 and 4, each mounting pallet transport conveyor 43 of pallet carry-in device 20 and pallet carry-out device 30 is specifically arranged on one of the left and right underground pits 40 across hoistway 41. The mounting pallet transport conveyor 43a laid on the gantry 50 and the mounting pallet transport conveyor 43b laid on the gantry 50 disposed on the other left and right underground pits 40 side. On each pedestal 50 and in the vicinity of the elevating device 44, transfer cylinders 51 and 52 for transferring the mounting carriage 42 are disposed, and a fourth pressing piece 51a, A fifth pressing piece 52a is attached.

  A first rodless cylinder 45 is disposed in the center of the upper surface of the mounting carriage 42 along the axis of the vehicle body conveyance line L. The first rodless cylinder 45 is sandwiched between the first upper surfaces of the mounting carriage 42 and the first rodless cylinder 45. A conveyance path 46 is laid along the vehicle body conveyance line L. When the first pressing piece 47 of the first rodless cylinder 45 presses the first engaging piece 10 on the lower surface of the mounting pallet 6, the mounting pallet 6 is transported along the first transport path 46. Further, a third engagement piece 42 a and a fourth engagement piece 42 b are formed on the left and right sides of the lower surface of the mounting carriage 42.

  As shown in FIG. 1, a long hole 12 is formed along the axis of the vehicle body conveyance line L at the front portion in the conveyance direction of the conveyance carriage 1 so as to vertically penetrate the long hole 12. As shown in FIG. 5, the third pressing piece 13 is slidably supported along the long hole 12. The third pressing piece 13 presses the second engaging piece 11 on the lower surface of the mounting pallet 6. The third pressing piece 13 is configured to be rotatable about the width direction of the vehicle body conveyance line L as a rotation axis. One end side of the third pressing piece 13 is positioned on one side of the second engaging piece 11. The other end side is positioned on the other side of the second engagement piece 11 so that the second engagement piece 11 can be pressed downstream. Further, as shown in FIG. 3, on both sides of the long hole 12 in the transport carriage 1, the second carriage is positioned on the extension line of the first transport path 46 of the mounting carriage 42 in the state of being placed in the hoistway 41. A conveyance path 14 is laid.

  As shown in FIGS. 2 and 5, the second rodless cylinder 15 extends along the vehicle body conveyance line L in the immediate vicinity of the upstream side of the vehicle body conveyance line L of each hoistway 41 of the pallet loading device 20 and the pallet unloading device 30. The third pressing piece 13 is engaged with the second pressing piece 16 of the second rodless cylinder 15. The second rodless cylinder 15 is provided at the upper end of the rod of the cylinder 60 disposed vertically below the recess G1 so as to be able to protrude and retract from the recess G1 formed in the laying surface G of the transport rail 1b. It is attached.

  Based on the above configuration, a method of connecting the vehicle body W and the power plant P will be described. A power plant P and an auxiliary machine such as an engine are assembled in advance on the subframe F by a small assembly line (not shown). The power plant P is positioned and mounted on the mounting table 8 of the mounting pallet 6. The mounting pallet 6 is transported in the underground pit 40 by the mounting pallet transport conveyor 43a of the pallet carry-in device 20 while being positioned on the mounting cart 42. When the mounting pallet 6 reaches the end of the mounting pallet transport conveyor 43a, the fourth engaging piece 42a of the mounting carriage 42 is pressed by the fourth pressing piece 51a of the transfer cylinder 51, whereby the mounting carriage 42 is transferred onto the roller 44a of the lifting device 44 and waits at this position.

  As shown in FIG. 2A, the vehicle body W is placed on the placement portion 5 of the lifting device 4 in the extended state of the transport carriage 1. When the transport carriage 1 transported on the vehicle body transport line L is braked by the friction roller 3a immediately before the hoistway 41 of the pallet carry-in device 20 and stops at a fixed position, the elevating device 44 rises, The first conveyance path 46 (FIG. 1) of the mounting carriage 42 and the second conveyance path 14 (FIG. 1) laid on the conveyance carriage 1 are positioned flush with each other.

  By operating the first rodless cylinder 45 in this state, the first pressing piece 47 presses the first engaging piece 10 of the mounting pallet 6, thereby, as shown by the arrow in FIG. The mounting pallet 6 is transferred from the first transport path 46 (FIG. 1) of the mounting cart 42 to the second transport path 14 (FIG. 1) of the transport cart 1. Next, the second rodless cylinder 15 projects upward from the recess G <b> 1 by the operation of the cylinder 60. As a result, the second pressing piece 16 of the second rodless cylinder 15 reaches a position where the third pressing piece 13 on the transport carriage 1 side can be pressed. Then, when the second rodless cylinder 15 is operated, the second pressing piece 16 presses the second engaging piece 11 of the mounting pallet 6 via the third pressing piece 13, and the mounting pallet 6 performs the second conveyance. It moves to a fixed position along the path 14 and stops positioning. Next, when the cylinder 60 is retracted, the second rodless cylinder 15 is moved back into the recess G1, whereby the engagement between the second pressing piece 16 and the third pressing piece 13 is released. At the same time, the first rodless cylinder 45 is moved backward, the lifting device 44 is lowered, and the mounting carriage 42 is immersed in the hoistway 41.

  Next, the transport carriage 1 is transported downstream on the transport rail 1 b by the drive motor 2. In FIG. 3, the mounting carriage 42 on the lowered lifting device 44 is the fifth pressing piece 52 a at the tip of the rod of the transfer cylinder 52 disposed on the mounting pallet transport conveyor 43 b and the first mounting carriage 42. When the four engaging pieces 42 b are engaged, the rollers 44 a of the elevating device 44 are transferred to the mounting pallet transport conveyor 43 b and are carried out to the outside through the underground pit 40.

  On the other hand, on the transport carriage 1 transported downstream on the transport rail 1b, as shown in FIG. 2 (b), the elevating device 4 is degenerated, and the vehicle body W placed on the placement portion 5 is the first. 2 Lowers toward the power plant P on the mounting pallet 6 stopped at a fixed position on the transport path 14. At this time, as shown in FIGS. 6, 8, and 9, the worker attaches the mounting holes BR <b> 1 of the bracket BR previously disposed on the side frame S on the vehicle body side and the studs planted on the power plant P side. As shown in FIG. 2 (b), the positional relationship with the bolt ST can be visually recognized from above. Therefore, when the positional deviation between the mounting hole BR1 of the bracket BR and the stud bolt ST has occurred, the operator can Easy to grasp. Also, with respect to the adjustment work of the relative positional relationship between the two, the vehicle body W or the power plant P can be swung in an easy posture, and the work burden is reduced. This improves work efficiency. At this time, as shown in FIG. 11, the mounting bolt D1 at the tip of the damper assembly D of the power plant P is inserted into the damper mounting hole W1 of the vehicle body W.

When the stud bolt ST is accurately inserted into the mounting hole BR1 of the bracket BR, the nut N is screwed to the stud bolt ST and the mounting bolt D1 of the damper assembly D to be fastened. At this time, since the vehicle body W is pressed against the power plant P at 9.8 m / s ² , the tightening torque of each nut N is guaranteed by performing the final tightening with a predetermined torque as it is.

  Next, as shown in FIG. 2C, the lifting device 4 of the transport carriage 1 is extended, and the vehicle body W placed on the placement unit 5 is lifted, so that the power plant P is integrated with the vehicle body W. To rise. On the other hand, the transport carriage 1 is braked by the friction roller 3b immediately before the hoistway 41 of the pallet unloader 30, and stops at a fixed position. Next, the lifting device 44 is raised, and the first transport path 46 (FIG. 1) of the mounting carriage 42 on the lifting apparatus 44 and the second transport path 14 (FIG. 1) laid on the transport carriage 1 are flush with each other. To do.

  Next, the second rodless cylinder 15 projects upward from the recess G <b> 1 by the operation of the cylinder 60. As a result, the second pressing piece 16 of the second rodless cylinder 15 reaches a position where the third pressing piece 13 on the transport carriage 1 side can be pressed. Then, when the second rodless cylinder 15 is operated, the second pressing piece 16 presses the second engaging piece 11 of the mounting pallet 6 via the third pressing piece 13, and the mounting pallet 6 is moved to the transport carriage 1. The second transfer path 14 (FIG. 1) is transferred to the first transfer path 46 (FIG. 1) of the mounting carriage 42.

  Next, the first rodless cylinder 45 is operated, and the mounting pallet 6 moves to the mounting position of the mounting carriage 42. Then, the elevating device 44 is lowered, and the mounting carriage 42 is immersed in the hoistway 41. Next, the transport carriage 1 is transported downstream on the transport rail 1 b by the drive motor 2. In FIG. 4, the loading carriage 42 includes a fifth pressing piece 52 a at the tip of the rod of the transfer cylinder 52 disposed on the loading pallet transport conveyor 43 b and a fourth engagement piece 42 b of the loading carriage 42. Is engaged, and is transferred from the roller 44a of the elevating device 44 to the mounting pallet transport conveyor 43b, and is carried outside through the underground pit 40.

On the other hand, as shown in FIGS. 7 and 10, on the transport carriage 1, the mounting hole F1 of the subframe F disposed on the lower surface of the raised power plant P and the screw hole (not shown) on the vehicle body W side are aligned. Fasten with bolts B1.
Thus, the one-cycle process for coupling the vehicle body W and the power plant P is completed.

  As described above, with respect to the power plant P located at the floor level, the vehicle body W is lowered from above, and the upper mounting portion (stud bolt ST etc.) of the power plant P and the vehicle body side, specifically, the mounting holes of the bracket BR. The BR1 is fastened by fastening means (nuts N) to unite them, and then the vehicle body W is raised to lower the power plant P lower mounting portion (subframe F mounting hole F1) and the vehicle body side mounting hole (see FIG. (Not shown) is fastened by fastening means (bolt B1), the vehicle body W is lowered with respect to the power plant P located at the floor level, and the upper mounting portion of the power plant P and the vehicle body W side are attached. Since the holes are fastened, an operator located at the floor level can easily visually recognize the state such as displacement of the upper mounting portion of the power plant P and the mounting hole on the vehicle body W side from above. Since the vehicle body W or the power plant P can be swung with an easy posture for the adjustment work of the positional deviation, the work load is reduced. Then, by raising the vehicle body W and fastening the lower mounting portion of the power plant P and the mounting hole on the vehicle body side, the operator easily fastens the lower mounting portion of the power plant P and the mounting hole on the vehicle body W side. it can.

  Further, the vehicle 1 has a lifting means (lifting device 4) for mounting the vehicle body W so as to be movable up and down, a transport carriage 1 that moves on the floor-level vehicle body transport line L, and a mounting pallet 6 on which the power plant P is mounted. The vehicle body W is moved by the coupling equipment having the transfer means (the first rodless cylinder 45 and the second rodless cylinder 15) for transferring the mounting pallet 6 to the transport carriage 1, or by the lifting means (lifting device 4). In the raised state, the mounting pallet 6 is transferred to the transport carriage 1 by the transfer means (first rodless cylinder 45, second rodless cylinder 15), and the power plant P is positioned at a predetermined position. The vehicle body W is lowered by the lifting means (lifting device 4), and the upper mounting portion (stud bolt ST, etc.) of the power plant P and the mounting hole BR1 on the vehicle body side are fastened by the fastening means (nut N). Next, the vehicle body W is raised by the lifting means (lifting device 4), and the lower mounting portion (the mounting hole F1 of the subframe F) of the power plant P and the mounting hole (not shown) on the vehicle body side are fastened by the fastening means. With the coupling method to be fastened, the vehicle body is lowered with respect to the power plant located on the transport carriage, and the upper mounting portion of the power plant and the mounting hole on the vehicle body side are fastened by fastening means. The operator can easily visually recognize the state of positional deviation between the upper mounting portion of the power plant and the mounting hole on the vehicle body side from above. Since the vehicle body or the power plant can be swung with an easy posture for the adjustment work of the displacement, the work load is reduced. Then, by raising the vehicle body and fastening the lower mounting portion of the power plant and the mounting hole on the vehicle body side by the fastening means, the operator easily fastens the lower mounting portion of the power plant and the mounting hole on the vehicle body side. be able to.

1 Conveying cart 4 Lifting device (lifting means)
6 Placement pallet 15 Second rodless cylinder (transfer means)
45 First rodless cylinder (transfer means)
BR1 (on the vehicle body side) mounting hole F1 mounting hole (lower mounting part of the power plant)
P Power plant ST Stud bolt (Power plant upper mounting part)
W body

Claims (3)

A method of coupling a vehicle body and a power plant in which a power drive system and auxiliary machines are assembled on a subframe,
For the power plant located at the floor level, lower the vehicle body from above and fasten the upper mounting part of the power plant and the mounting hole on the vehicle body side by fastening means,
Next, the vehicle body is raised and the lower mounting portion of the power plant and the mounting hole on the vehicle body side are fastened by fastening means. A facility that combines a vehicle body and a power plant in which a power drive system and auxiliary equipment are assembled on a subframe,
A transporting carriage having lifting means for placing the vehicle body so as to be movable up and down, and moving on a floor-level vehicle body transportation line;
A mounting pallet for mounting the power plant;
Transfer means for transferring the mounting pallet to the transport carriage;
I have a,
As the bond,
A first stage in which the mounting pallet is transferred to the transport carriage by the transfer means while the vehicle body is raised by the lifting means, and the power plant is positioned at a predetermined position;
A second stage in which the vehicle body is lowered toward the power plant by the elevating means so that the upper mounting portion of the power plant located at the predetermined position is inserted into the mounting hole on the vehicle body side;
A third stage in which the vehicle body in a state where the upper mounting portion of the power plant and the mounting hole on the vehicle body side are fastened is lifted by the lifting means;
A facility for connecting a vehicle body and a power plant, characterized in that they are performed in that order . A method of coupling a vehicle body and a power plant in which a power drive system and auxiliary machines are assembled on a subframe,
A transporting carriage having lifting means for placing the vehicle body so as to be movable up and down, and moving on a floor-level vehicle body transportation line;
A mounting pallet for mounting the power plant;
Transfer means for transferring the mounting pallet to the transport carriage;
Using a coupling facility with
With the vehicle body raised by the lifting means, the mounting pallet is transferred to the transport carriage by the transferring means, and the power plant is positioned at a predetermined position.
Next, the vehicle body is lowered by the lifting and lowering means, the upper mounting portion of the power plant and the mounting hole on the vehicle body side are fastened by the fastening means, and both are integrated.
Next, the vehicle body is lifted by the lifting means, and the lower mounting portion of the power plant and the mounting hole on the vehicle body side are fastened by the fastening means.

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