JP3008220B2 - Vehicle assembly equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle assembling apparatus having a transport mechanism for assembling parts while circulating a transport hanger having a plurality of types of vehicle bodies along a closed loop main transport line.

[0002]

2. Description of the Related Art In a mixed production line in which a plurality of types of vehicle bodies are mounted on a transfer hanger of an overhead conveyor to assemble parts while flowing the same, it is necessary to rationally absorb differences in man-hours for assembling different parts for each model. Is essential. For this reason, the body of a specific model with a large number of assembly steps is transferred onto the slat conveyor of the bypass transfer line that branches off from the main transfer line, and after assembling parts at the work station provided on this bypass transfer line, There has been proposed a method in which the vehicle body is returned to the original transport hanger on the main transport line again (for example, see Japanese Patent Application Laid-Open No. 63-13857).

[0003]

However, according to the above-mentioned conventional technique, a specific type of vehicle body that has descended from the transport hanger at the branch of the bypass transport line is mounted in the same order on the original transport hanger at the junction of the bypass transport line. Therefore, it is difficult to arbitrarily set the time during which the body of the specific model flows on the bypass conveyance line. That is, the operable time until the body of the specific model introduced into the bypass conveyance line at the branch portion reaches the junction is set to coincide with the time during which the transport hanger flowing through the main transport line flows from the junction to the junction. Therefore, the workable time cannot be changed unless the flow speed of the main transfer line is changed. Therefore, when it is necessary to increase or decrease the number of assembling steps in the bypass conveyance line, problems such as an increase in the burden on the operator and a generation of dead time occur.

Further, in the above-described conventional apparatus, the interval between the specific types of vehicle bodies introduced from the main transport line to the bypass transport line is uniquely determined by the order of the specific type vehicle bodies mounted on the transport hanger of the overhead conveyor. There was a problem that was done. In other words, unless a specific model body and another vehicle are mounted on the transfer hanger in a fixed order, the specific model body cannot be introduced into the bypass transfer line at fixed intervals, which imposes a burden on the operator. It was an increasing factor.

The present invention has been made in view of the above circumstances, and has as its object to provide a vehicle production apparatus capable of rationally assembling parts to a specific type of vehicle body in a mixed production line.

[0006]

In order to achieve the above object, the present invention provides a transport mechanism for assembling components while circulating a transport hanger equipped with a plurality of types of vehicle bodies along a main transport line forming a closed loop. In the vehicle assembling apparatus, a model checking mechanism for checking a model of a vehicle body mounted on the transfer hanger, and a transfer hanger mounted with a body of a specific model based on an output signal of the model checking mechanism from the main transfer line. A side-side transfer line to be branched, a specific-type assembly line for assembling parts while receiving and transporting the vehicle body of the specific model from the side-side transfer line, and the specific type via the transfer mechanism from the specific type assembly line In addition to receiving the vehicle body of the model and the vehicle body other than the specific model from the main transfer line, transfer the vehicle body and assemble parts By comprising a Cormorant mixed model assembly line to the first aspect.

Further, the present invention provides, in addition to the first feature described above,
A specific model unloading control means for calculating a production ratio of a specific type of vehicle based on a production plan, controlling the transfer mechanism and the transfer mechanism, and keeping a constant interval of unloading the specific type of vehicle to a mixed model assembly line. The second feature is to have the following.

[0008]

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

[0009] 1 to 4, shows a vehicle assembly apparatus for assembling the various parts while conveying the car body having been subjected to the coating process, the first transport mechanism C ₁ is shown in FIGS. 1 and 2 2 It has a closed transport line composed of a floor portion and a first floor portion shown in FIGS.

The above-mentioned vehicle assembling apparatus is for mixing and producing three types of vehicle bodies while flowing them at random. A first transport mechanism C ₁ comprising an overhead conveyor comprises a first transport hanger H ₁ and a second transport hanger H _2. Are provided. That is, as shown in FIGS. 5 and 6, the vehicle body B _T of the vehicle body B _V and track type of van type because it has a basically similar body structure, mounted on the first conveyance hanger H ₁ common transfer It is also FIGS. 7 and 8, the second transport hanger body B _S sports car type slightly different shape from the first transport hanger H ₁ H ₂
And transported. The first and second transport hangers H
₁ and H ₂ have the same upper structure, and both are suspended and supported by a roller 2 engaging with a guide rail 1 and a roller 4 engaging with a vibration-prevention rail 3, and are pulled by a chain (not shown). The vehicle has a traveling cart 5. However, the shape of the pair of left and right hanger frames 7 ₁ , 7 ₂ provided at the lower portion of the carriage 5 so as to be openable and closable and having the receiving members 6 ₁ , 6 ₂ at the lower end is the first transport hanger H ₁ and the second transport hanger H 2. _{The two} are formed differently.

[0011] In addition, the vehicle body B _S of the sports car type is less production volume compared to the body of the other models, special parts are assembled not in the vehicle body B _T of the vehicle body B _V and the track type of van type. Further, the vehicle body B _T of the vehicle body B _V and track type of van type is a common assembly form a substantially part, the vehicle body B _V van type components without the vehicle body B _T of the track type is further assembled.

[0012] code C ₂ in FIG. 1 is a second conveying mechanism overhead conveyor type for connecting the vehicle assembly equipment and coating step, the vehicle body B _V of the three models already painted on the transport hanger H _{3, BT} and _BS are mounted and transported.
Body B _V is the second conveying mechanism C ₂ mounted on the transporting hanger H _3, B _T, the first model type check mechanism D ₁ of the order to confirm the model of B _S are provided. As shown in FIG. 5, the first model verifier D ₁ is 3 comprises a photoelectric switch 11, 12 and 13, the vehicle body Ryohikariden switches 12 and 13 are both when photoelectric switch 11 detects a part of the conveying hanger Is detected, it is determined that the vehicle is a van type body _BV , and the photoelectric switch 12
In There determines that and photoelectric switch 13 detects the vehicle body is a vehicle body B _T of the track type to be detected of the vehicle body, the vehicle body B _S sports car type to be detected the vehicle body Ryohikariden switches 12 and 13 are both It is configured to determine that there is.

The symbol T in FIG.₁Is the second transport mechanism C_Two
To the first transport mechanism C₁The body B _V, B_T, B_SReceiving
This is the first transfer mechanism for transfer, the details of which are shown in FIG.
And shown in FIG. That is, the first transfer mechanism T₁Is
First and second transport mechanisms C₁, C _TwoAre aligned on a straight line
A plurality of supports are provided on a base 21 on the floor surface.
A pair of left and right running rails 23 supported via
You. A carriage is provided on the traveling rail 23 via a plurality of rollers 24.
25 is supported so that it can run freely._V, B
_T, B_SAre provided. Running
Guided by a chain guide 27 provided at the center of the row rail 23.
The chain 28 is composed of a driving sprocket 29 and a driven sprocket.
Wrapped around the ket 30 and at the front and rear ends of the cart 25
Be bound. Therefore, the driving sprocket 29 is
The cart 25 is rotated by the motor 31 so that
Reciprocatingly driven along the rule 23.

[0014] the ends of the running rail 23 is provided with a lifting device 32 to pass the vehicle body to the bogie 25 from the second conveying mechanism C _2,
Lifting device 33 to pass the vehicle body to the first conveying mechanism C ₁ from the truck 25 is provided. Since both lifting devices 32 and 33 have the same structure, the structure of one lifting device 32 will be described. Two guide rails 35 are provided on a pair of columns 34 erected on both sides of the traveling rail 23, respectively. A pair of lift tables 37 are supported on the guide rails 35 via slide guides 36. Two chains 40 are wound around two driving sprockets 38 provided at the upper part of the column 34 and two driven sprockets 39 provided at the lower part, and both ends of the chain 40 are connected to the elevating table 37. You. An endless chain 42 is wound around a pair of interlocking sprockets 41 provided integrally with the left and right driving sprockets 38, and the one driving sprocket 38 is connected to a motor 43. Therefore, when the motor 43 is driven, the left and right elevators 3 are moved through the chains 42 and 40.
7 moves up and down along the support 34 in synchronization. A plurality of receiving members 44 are provided on the pair of elevating tables 37 so as to oppose each other.
₂ of the transport hanger H ₃ to a truck 25 or carriage 25,
From the first and second transport hangers H ₁ , H of the first transport mechanism C _1
2 can transfer the vehicle body.

Referring back to FIGS. 1 and 2, the first transport mechanism C ₁
Of the upstream position of the branching portion a second model verifier D ₂ is provided in the first model verifier D ₁ and the same structure, the first, second conveying hanger H _1, a vehicle body B mounted into H _{2 V} , B _T ,
Models of B _S is detected. As shown in FIG. 13, the branch mechanism P provided in the branch section a triangular guide plate 51 which swings by a cylinder or the like not shown in the bifurcated portion of the guide rail 1 of the first conveying mechanism C ₁ The van type body B _V is separated from the truck type body B _T and the sports car type body B _S based on the detection result of the second model checking mechanism D ₂ and bypassed from the main transfer line L _1. It is introduced into the conveying line L _2.

From the branch part a to the bypass conveying line L_TwoTransport to
Van type car body B inserted_VIs the first transfer mechanism described above.
T₁The transport mechanism (not shown) has the same structure as
Sending hanger H₁To first slat conveyor S₁Transferred to
You. 1st slat conveyor S ₁There is a van type body
B_VMultiple work stations for assembling parts specific to
Is provided. Van type body B_VIs the first slatco
Nvea S₁A van-type car until it was transported over
Body B_VEmpty transport hanger H that was equipped with₁Is the first sla
Conveyor S₁The bypass transport extending along the top of the
Transmission line L_TwoAnd a truck-type body B_T
And sports car type body B_SFirst and second transport with
Sending hanger H₁, H_TwoHas a buffer function
1st slat conveyor S₁Who largely bypassed the side of
Transfer line L₁To travel. Main transfer line L₁And vipa
Transfer line L_TwoIs the first slat conveyor S₁Near the end of
Merges at the side merging part b, and the first slat conveyor S
₁Upper van type body B _VIs the first transfer mechanism T described above.₁
The original first transport by a transfer mechanism (not shown) having the same structure as
Hanga H₁Will be installed again.

A main transport line downstream of the junction b
L₁Between the assembly work start position c and the assembly work end position d
Has several work stations, where three types of vehicles
Body B _V, B_T, B_SCommon parts are assembled
It is. And the first transport mechanism C ₁At the end of the second floor of
First and second transport hangers that have passed through the work station
H₁, H_TwoTo the body B_V, B_T, B_SWith the
First transport mechanism C₁Elevator to transfer to the first floor
A structure E is provided. This hanger elevating mechanism E starts from the second floor
When the actual hanger is transferred to the first floor, empty hangers are moved from the first floor to the second floor.
The moth is configured to be transferred.

As shown in FIGS. 3 and 4, between the main transfer line L ₁ of the assembly operation start position e and assembly work end position f in the first first floor of the transport mechanism C ₁ is a plurality of work stations Provided, here again three types of body B _V ,
Assembly work of parts common to B _T and B _S is performed. The upstream position of the first conveying mechanism C ₁ of the main conveyor line L ₁ of the bifurcation g third model verifier D ₃ of the first model verifier D ₁ and the same structure is provided, first, second transport Hanger H ₁ ,
The models of the vehicle bodies B _V , B _T , and B _S mounted on H ₂ are detected. Based on the first three models check mechanism D ₃ of the detection result, the vehicle body B of the vehicle body B _S Ban type of turn sports car type
Is separated from the _V and truck type vehicle B _T, it is introduced aside out transport line L _3. This aside out conveying line L ₃ connected to the second starting end of the slat conveyor S ₂ described later, between the branch portion g and the second slat conveyor S ₂ is formed to bypass in order to have a buffer function .
In addition, the same branching mechanism as the branching mechanism P provided in the branching part a is provided in the branching part g.

The sports vehicle type vehicle body B _S carried from the branching portion g to the aside transfer line L ₃ is transferred by a transfer mechanism (not shown) having the same structure as the first transfer mechanism T _1. is transferred from the transporting hanger H ₂ in second slat conveyor S _2. The second slat conveyor S ₂ is intended to constitute a specific type assembly line, a plurality of work stations for assembling the specific component to the vehicle body B _S sports car type is provided.

Reference numeral T ₂ in FIG. 4 denotes a second transfer mechanism for transferring a sports car type vehicle body B _S from the second slat conveyor S ₂ to the third slat conveyor S ₃ . 11 and FIG. That is, the second transfer mechanism T ₂ comprises a second, third slat conveyors S _2, S each pair of running rails 61 laid on the right and left sides of the facing portion of _3. A plurality of rollers 6 are mounted on the traveling rail 61.
The pair of trolleys 63 supported via the two 2 are reciprocally driven in synchronization with each other by engaging a rack 64 provided on the lower surface thereof with a pinion 66 rotated by a motor 65 provided on the floor surface. A cylinder 67 is provided at the front end of each carriage 63.
In conjunction with a hook member 68 that protrudes inward is provided, and the conveying surface of the second slat conveyors S ₂ the hook member 68 is engageable with the dog 69 is protruded at a predetermined interval. A lifter 73 is provided on the upper surface of each carriage 63 to be moved up and down by a rack 72 meshing with a pinion 71 rotated by a motor 70.
A pair of front and rear receiving members 75 connected to and swinging from each other are provided.

Returning to FIGS. 3 and 4, the side transport line L ₃ extending along the side of the second slat conveyor S ₂ and the second transfer mechanism T ₂ is connected again to the main transport at the junction h. Although merges with the line L _1, the main body B _T of the vehicle body B _V and track type of van type mounted on the transport hanger H ₁ conveying line L _1, the first transfer of the aforementioned in front of the merging portion h the transfer mechanism of the mechanism T ₁ and the same structure (not shown) is transferred onto the third slat conveyor S _3.
Those third slat conveyor S ₃ is constituting the mixed model assembly line, three of the vehicle body B _V, B _T, a plurality of work stations are provided to perform the assembling work of the common parts B _S.

[0022] the transport hanger verifier D ₄ is provided downstream of the merging portion h. This transport hanger confirmation mechanism D ₄ is 2
As shown in FIG. 7, when one of the photoelectric switches 14 detects a part of the transport hanger, the other photoelectric switch 15 switches to the second transport hanger H _{2, as shown in FIG.}
Depends on whether or not the detection projection 8 provided only on the
Configured to identify the transport hanger H ₁ and the second conveyance hanger H _2.

Branch i located downstream of the transport hanger confirmation mechanism D ₄
Is provided with a branching mechanism having the same structure as the branching mechanism P,
Further downstream therefrom is provided a transfer hanger buffer mechanism B which bifurcates. The transport hanger buffer mechanism B
It has a first buffer line L ₄ for storing an empty first transport hanger H ₁ and a second buffer line L ₅ for storing an empty second transport hanger H _2. Both buffer lines L ₄ , L
₅ merges again at the junction j upstream of the hanger elevating mechanism E.

Next, the operation of the embodiment of the present invention having the above configuration will be described.

The three types of vehicle bodies B _V , B _T ,
When B _S is mounted on the transport hanger H ₃ of the second transport mechanism C ₂ and reaches the first model confirmation mechanism D ₁ , the model is confirmed by the action of the three photoelectric switches 11, 12 and 13. As shown in FIG. 14, the transport hanger unloading control means M ₁ receiving the model information from the first model checking mechanism D ₁
The transport hanger buffer mechanism B and the first transport mechanism C ₁ are controlled to supply _one of the first and second transport hangers H ₁ and H ₂ to the first transfer mechanism T ₁ . That is, the first transfer mechanism T ₁ is mounted on the transfer hanger H ₃ of the second transfer mechanism C _2.
If the vehicle has reached the is body B _T of the vehicle body B _V or track type vans type, engaged the first conveyance hanger H ₁ of the head of the first buffer line L ₄ of the transport hanger buffer mechanism B by releasing the stopper are delivering first conveyor hanger H ₁ from the confluent portion j to hanger lifting mechanism E. When the first conveyance hanger H ₁ of the head is sent stopper is operated again, the first conveying hanger H ₁ subsequent to one pitch advanced to the position of the stopper.

The second transport mechanism C_TwoTransport hanger H_Three
Is mounted on the first transfer mechanism T₁Sports reached the body
Car type body B_SIn the case of
Second buffer line L of transport hanger buffer mechanism B
_FiveSecond transport hanger H at the beginning of _TwoSent to the hanger lifting mechanism E
Will be issued.

Thus, the second transport mechanism C_TwoSupplied by
Car body B is a van type car body_VOr truck
Ip body B_T, The corresponding first transport hanger
H₁But again, sports car type body B_SIf
Is the corresponding second transport hanger H _TwoBut each goes up and down
First transport mechanism C via mechanism E₁Supplied to the second floor part of
You. And the first transfer mechanism T₁, The second transport mechanism C
_TwoTransport hanger H_ThreeThe car body loaded and carried in
The first and the first supplied from the transport hanger buffer mechanism B.
2 transfer hanger H₁, H_TwoTo one of the following
Will be transferred.

[0028] For example, when transferring the vehicle body B _V van type raises the elevation frame 37 of one of the lifting device 32 of the first transfer mechanism T ₁ in FIG. 9, the transport hanger H by the receptacle 44 Receive the car body on ₃ . Then lift 3
7 is lowered after transferring the vehicle body B _V van type receptacle 26 of the carriage 25, the other lifting device the cart 25 3
3 position to is run, and passes the first transport hanger H ₁ of the first conveying mechanism C ₁ by raising the elevating table 27.

As described above, the van-type vehicle body B_VYou
And truck type body B_T1st transfer hank equipped with
Moth H₁And sports car type body B_S2nd carrying with
Sending hanger H_TwoIs the first transport mechanism C₁In the second floor of
Main transfer line L₁Will be introduced. And the second model confirmation machine
Structure D_TwoBased on the result of checking the model at
Type body B_VTransport hanger H equipped with a vehicle
₁Only from the branch section a to the bypass conveying line L_TwoIntroduced to
It is. Bypass transport line L₁Van type car that entered
Body B_VIs the first slat conveyor S₁Transferred to
Rat conveyor S₁Of a truck type while flowing over
Body B_TThere is no van type body B_VSpecific parts
By being assembled, a van type body B_VAnd to
Rack type body B_TThe difference in the number of assembly steps is absorbed.
In the meantime, truck type body B _T1st transfer equipped with
Hanga H₁And sports car type body B_SThe first with
2 transfer hanger H_TwoIs the main transport line L₁Move the junction
At b, a van type body B_VThe sky was equipped with
1 transfer hanger H₁To join. Then, the empty first transport
Sending hanger H₁Has the first slat conveyor S₁At
Van type body B with parts assembled_VIs transferred.

Subsequently, the three types of vehicle bodies B _V , B _T , and B _S flow from the assembly work start position c to the assembly work end position d of the main transfer line L ₁ , and common parts are used in a plurality of work stations during the flow. Is assembled, the hanger elevating mechanism E
Thus, the first and second transport hangers H ₁ and H ₂ are transferred from the second floor to the first floor of the first transport mechanism C ₁ .

[0031] The subjected to the first first floor of the transport mechanism C ₁ 3
The types of vehicle bodies B _V , B _T , and B _S flow between the assembly operation start position e and the assembly operation end position f of the main transport line L ₁ , during which common components are further assembled at a plurality of work stations. Subsequently third on the basis of the result of confirmation of the model in the model checking unit D _3, second only transport hanger H ₂ equipped with the vehicle body B _S sports car type bifurcation g
It is introduced into the side-out conveyor line L ₃ from. Body B _S of entering the sports car type on the side out transport line L ₃ is transferred to the slat conveyor S _2, the slat conveyor S ₂
Parts that are unique to the sports car type vehicle body B _S are assembled while flowing over.

Second slat conveyor S_TwoReached the end of
Sports car type car body B_SAre shown in FIGS. 11 and 12.
Second transfer mechanism T shown_Two3rd slat conveyor S
_ThreeWill be transferred to That is, a sports car type body B
_SReaches the illustrated position, the second transfer mechanism T_TwoDolly 6
3 is provided on the second slat conveyor S _Two
The truck 63 is engaged with the dog of the second slat conveyor.
S_TwoRunning in synchronization with the lifter 73
A sports car type body B_S
Is placed. Thus, the second slat conveyor S_TwoKaradai
Sports car type body B on car 25_SIs transferred,
The engagement between the hook member 68 and the dog 69 is released,
3 is self-propelled by the motor 65. And the bogie 63 is the third
Slat conveyor S_ThreeLifter 73
To lower the sports car type body B_S3rd slur
Conveyor S_ThreeTransfer to

On the other hand, at the branching section g, the main transport line L ₁
Body B _T of the vehicle body B _V and track type of van type proceeding to is transferred to the third slat conveyor S ₃ constituting the mixed model assembly line at the merging portion h. In this manner, the third slat conveyor S ₃ finally has three types of vehicle bodies B.
_V , B _T , and B _S are transferred, and the assembling operation of the parts is completed while flowing on the third slat conveyor S ₃ .

At this time, as shown in FIG.
Specific model unloading control means M connected to computer_TwoIs
Based on the production plan, a specific model sports car type
Body B_SOf the sports car type
Body B_S3rd slat conveyor S_ThreeThe interval to carry out
The first transport mechanism C₁And the second transfer mechanism T _Two
Control. That is, for example, a sports car type body
B_SIf the production ratio is 20%, four banta
Ip body B_VOr truck type car B_TIs the
3 slat conveyor S_ThreeOne sport each time it is transferred to
Car type B_SIs the third slat conveyor S_ThreeMoved to
The control is performed so as to be mounted. As a result,
Conveyor S_TwoFlow rate can be kept constant,
It is possible to perform efficient assembly work with less imros
Become. In addition, the side transport line L _ThreeAt the second transport
Nga H_TwoTo second slat conveyor S_TwoS that was transferred to
Ports car type car body B_SIs the original second transport hanger H_Two
3rd slat conveyor S without being returned to_ThreeTransferred to
The second slat that constitutes the specific model assembly line
Conveyor S_TwoFlow speed of the first transport mechanism C₁The first
Second transport hanger H₁, H_TwoSetting without being affected by the flow speed of
The second slat conveyor S_TwoTo
Can easily deal with changes in assembly man-hours, etc.
You.

[0035] In Thus, merging unit first transport hanger H ₁ and the second conveyance hanger H ₂ empty which merges in the h, after being confirmed that model in the transport hanger check mechanism D _4, second in the branch section i 1 buffer line L ₁ and stored is classified into the second buffer line L _2, a new body B _V in the first transfer mechanism T _1, B _T, waits to receive the B _S.

Although the embodiments of the present invention have been described in detail, the present invention is not limited to the above-described embodiments, and various small designs may be made without departing from the present invention described in the appended claims. It is possible to make changes.

For example, in the embodiment, the first transport mechanism is provided over two floors, the first floor and the second floor. However, the first transport mechanism may be formed on one floor. The transport hanger is not limited to the chain drive type, but may be a self-propelled type with a RAM. Further, the transfer hanger buffer mechanism may be a single loop type, and the type of the transfer hanger confirmed by the transfer hanger confirmation mechanism may be stored in a memory, so that a desired transfer hanger may be taken out from the transfer hanger buffer mechanism. . Furthermore, the third model confirmation mechanism D
_3, the transport hanger may be confirms the vehicle body B _S sports car type by the first or transport hanger H ₁ or the second transport hanger H _2.

[0038]

As described above, according to the first feature of the present invention, the vehicle body of the specific model, to which the parts are mounted and transferred from the side-out transfer line to the specific model assembly line, are attached to the original transfer hanger. Since it is supplied to the mixed model assembly line without being returned, the flow speed of the specific model assembly line can be independently determined without being affected by the flow speed of the main transport line. Therefore, even if the number of man-hours for assembling parts of a specific model body due to a model change or the like increases, it can be dealt with without increasing the burden on the worker. Also, when the flow method of a specific model assembly line is changed to tact feed, which takes a relatively long time due to the introduction of an automatic machine, or when it is necessary to reduce the flow speed to enable synchronous work, it is also necessary to respond. It becomes possible.

Further, according to the second feature of the present invention, the interval between the vehicle bodies of the specific model carried out from the specific model assembly line to the mixed model assembly line is kept constant based on the production ratio of the specific model body. Therefore, the burden on the operator can be reduced by causing the vehicle body to flow at a constant speed and a constant interval on the specific model assembly line.

[Brief description of the drawings]

FIG. 1 is a first partial view of a second floor portion of a first transport mechanism.

FIG. 2 is a second partial view of the second floor portion of the first transport mechanism.

FIG. 3 is a first partial view of the first floor portion of the first transport mechanism.

FIG. 4 is a second partial view of the first floor portion of the first transport mechanism.

FIG. 5 is a side view of the first transport hanger.

FIG. 6 is a view in the direction of arrows in FIG. 5;

FIG. 7 is a side view of the second transport hanger.

8 is a view in the direction of arrow 7 in FIG. 7;

9 is an overall side view of the first transfer mechanism (an enlarged view of a part 9 in FIG. 1).

FIG. 10 is a view taken in the direction of arrow 10 in FIG. 9;

11 is an overall side view of the second transfer mechanism (an enlarged view of a part 11 in FIG. 4).

FIG. 12 is a view in the direction of arrow 12 in FIG. 11;

FIG. 13 is a bottom view of the branching mechanism.

FIG. 14 is a block diagram of a control system.

FIG. 15 is a block diagram of a control system.

[Explanation of symbols]

B _V ... Van type body (body other than specific model) B _T ... Truck type body (body other than specific model) B _S ... Sport car type body (specific model of the vehicle body) C ₁ · · · · · first transport mechanism (conveyance mechanism) D ₃ · · · · · third model verifier (model verifier) M ₂ · · · · · certain type unloading control means H ₁ ... First transport hanger (transfer hanger) H ₂ ... Second transport hanger (transfer hanger) L ₁ ... Main transport line L _{3. 2} ----- second slat conveyor (specific model assembly line) S ₃ ..... third slat conveyor (mixed model assembly line) T ₂ ..... second transfer mechanism (transfer mechanism)

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ identification code FI B65G 47/68 B65G 47/68 Z (58) Fields investigated (Int.Cl. ⁷ , DB name) B23P 21/00 303 B62D 65 / 00 B65G 43/08 B65G 47/48 B65G 47/61 B65G 47/68

Claims (2)

(57) [Claims] A transfer hanger (H ₁ , H ₂ ) carrying a plurality of types of vehicle bodies (B _V , B _T , B _S ) is circulated along a closed loop main transfer line (L ₁ ). In a vehicle assembling apparatus provided with a transfer mechanism (C ₁ ) for assembling, a model checking mechanism (B _V , B _T , B _S ) mounted on the transfer hangers (H ₁ , H ₂ ) for checking the model of the body (B _V , B _T , B _S ) D ₃ ) and a transfer hanger (H ₂ ) on which a vehicle body (B _S ) of a specific model is mounted is branched out from the main transfer line (L ₁ ) based on an output signal of the model checking mechanism (D ₃ ). The transfer line (L ₃ ) and this side-out transfer line (L
₃ ) The specific model assembly line (S) for assembling parts while receiving and transferring the specific model body (B _S ) from
₂ ) and a vehicle body (B _S ) of the specific model is received from the specific model assembly line (S ₂ ) via the transfer mechanism (T ₂ ), and a vehicle body other than the specific model is received from the main transfer line (L ₁ ). A vehicle assembling apparatus comprising a mixed model assembly line (S ₃ ) for receiving (B _V , B _T ) and assembling parts while transporting the vehicle bodies (B _V , B _T , B _S ). 2. A vehicle body (B _S ) of a specific model based on a production plan.
And the transport mechanism (C ₁ ) and the transfer mechanism (T ₂ ) are controlled, and the carry-out interval of the vehicle body (B _S ) of the specific model to the mixed model assembly line (S ₃ ) is fixed. _2. The vehicle assembling apparatus according to claim 1, further comprising a specific model carry-out control means (M ₂ ) for keeping the specific model.