WO2012053721A1

WO2012053721A1 - Vehicle assembly device

Info

Publication number: WO2012053721A1
Application number: PCT/KR2011/004379
Authority: WO
Inventors: 허병하
Original assignee: 주식회사 우신시스템
Priority date: 2010-10-21
Filing date: 2011-06-15
Publication date: 2012-04-26
Also published as: KR101036129B1

Abstract

The present invention relates to a device for efficiently assembling the bodies of various models on a multi-vehicle-type, mixed-flow vehicle assembly line. Provided is a vehicle assembly device giving form to a new type of body assembly system which is equipped with a plurality of carriages that carry gates corresponding to vehicle types on a multi-vehicle-type, mixed-flow vehicle-body assembly line, and in which respective carriages corresponding to various models are stored in a predetermined area while a carriage matched to the next process is switched in and put on standby in advance in a stand-by area whenever necessary. In this way, the vehicle assembly device can efficiently cope with mixed-flow production of multiple vehicle types, for example being able to respond rapidly during model changes and allowing models to be changed while work is underway.

Description

Body assembly

The present invention relates to a vehicle body assembling apparatus, and more particularly, to an apparatus for efficiently assembling the body of the various models in the vehicle assembly line of the multi-vehicle mixed flow system.

In general, the body assembly line consists of a step of welding the press-formed floor body, the left and right side body, the roof, the cowl, the package tray and the like one by one using a spot welding facility by a robot.

For example, the process of assembling the body panels produced through the press process to produce the body of the white body state, and to install the floor, door, trunk lid, hood, fender, roof, cowl, etc. After that, one finished body is made.

The body assembly process is based on the body main floor process, the body side process, the main part of the wall of the body, the main buck process to attach the side, roof, rear panel, etc. to the base floor, and the intermediate supplied to the main process. The main sub process of assembling an assembly, the metal line process of attaching a door, a hood, etc. to a main body, the metal sub process of assembling the door, a hood, etc. which are supplied to a metal line to a component, etc. are included.

Here, the main buck process is a process of assembling the side body assembly and the underbody by a large apparatus fixing a welding fixture and performing a swing or rotation and shift operation of the welding fixture.

In general, assembling the vehicle body requires the most precision in the automobile assembly process, and since most of the main equipment is a dedicated machine, most of the equipment is changed to a new equipment when the model is changed.

At this time, the facility is subdivided into main lines and dozens of sub-lines, and is focusing on increasing the factory automation rate by installing automatic processes such as automatic robot welding, automatic sealer coating device, and automatic transfer device.

In recent years, in the assembling process of a vehicle, a multi-vehicle-response system for assembling a multi-vehicle model has been gradually applied. Such a multi-vehicle-response system regulates the body panel and injects a body by model according to the vehicle model, and performs welding work. It is done in such a way that it is done.

However, most of the vehicle body assembly method applying the conventional multi-vehicle corresponding system has a problem that does not flexibly cope with the mixed flow production of the multi-vehicle.

That is, there is a problem that it is difficult to actively cope with changes in the model of various models, such as a rapid fall in the model change, there is a limit that can not change the model during work.

In addition, there is a problem in that the efficiency of the system operation is reduced, such as a long cycle time due to an increase in waiting time due to a model change, and the initial investment cost of the facility is increased due to the complicated structure of the entire facility.

Accordingly, the present invention has been made in view of the above, and has a plurality of carriages equipped with a gate according to the vehicle type in a multi-vehicle mixed-body assembly line, while storing each carriage according to various models in a predetermined area By implementing a new body assembly system that replaces the carriage suitable for the next process in the waiting area whenever it is needed, it can cope quickly with model changes and change the model on the fly. Its purpose is to provide a vehicle body assembly apparatus that can cope with.

In order to achieve the above object, the vehicle body assembling apparatus provided in the present invention includes a buck shift device installed at one side of a vehicle body assembly line to position a carriage on which a model for setting a body is mounted, into a work area, and the buck shift device. A conveying unit disposed in a conveying region formed at the rear of the conveying region and moving in the conveying region to move the carriage to the front of the standby region, and conveyed carriages in the stock region as disposed in the stock region formed on both sides of the conveying region. A stock unit which moves to the area or recovers the carriage in the transport area into the stock area, and is disposed in the waiting area formed parallel to the stock area on both sides of the transport area, and moves the carriage in the waiting area to the buck shifter; Wait for a carriage positioned up to the waiting area It consists of a system that includes a standby unit that moves to the station.It features a system operation method that keeps several models mounted on a carriage in a designated area and replaces the model corresponding to the process in the waiting area whenever the model changes. do.

Here, the stock unit of the stock area is provided with at least one set or more on each side around the transfer area, each of the carriages assigned to each stock unit is equipped with different models to quickly cope with the model change It is preferable.

The vehicle body assembling apparatus provided by the present invention adopts a system for changing a model suitable for a corresponding vehicle type, if necessary, while storing various models in a stock area, so that the system can be operated effectively when the model is changed, and thus, in multi-vehicle mixed production It is effective to cope with it efficiently.

In addition, by adopting a model transfer method using carriages that move between the stock area, the standby area, and the buck shifter area when the model is changed, the investment of the facility can be greatly reduced, such as greatly reducing the overall size of the facility. .

1 is a perspective view showing the overall layout of the vehicle body assembly apparatus according to an embodiment of the present invention

Figure 2 is a front view showing the overall layout of the vehicle body assembly apparatus according to an embodiment of the present invention

Figure 3 is a plan view showing the overall layout of the vehicle body assembly apparatus according to an embodiment of the present invention

Figure 4 is a side view showing the overall layout of the vehicle body assembly apparatus according to an embodiment of the present invention

5 is an enlarged view of a portion A of FIG. 1;

6 is an enlarged view of a portion B of FIG. 1;

7 is an enlarged view of a portion C of FIG.

8 is an enlarged view of a portion D of FIG. 1;

9 to 13 are plan views illustrating a process of transferring a carriage of a stock area to a standby area in a vehicle assembly apparatus according to an embodiment of the present invention.

14 to 19 are plan views illustrating a process of transferring a carriage of a waiting area to a buck shift device when a model is changed in a vehicle assembly apparatus according to an embodiment of the present invention;

The vehicle body assembling apparatus provided by the present invention stores a plurality of various models, that is, a plurality of carriages equipped with a gate according to a vehicle type in a predetermined area, and replaces a carriage equipped with a model suitable for the next process in a standby area whenever a vehicle type is changed. It consists of a system to wait.

To this end, a stock area for storing a carriage equipped with a model suitable for the process in an area determined by various models in addition to the work area, and a carriage in which the model is mounted in advance when a model of a vehicle to be assembled (the next work object) is changed. And a transfer area for removing the carriage from the stock area and then transferring it to the standby area when the model is previously changed from the stock area to the standby area for the next process.

Therefore, if a model change is required, the carriage for the corresponding model in the stock area or before the work area is in progress, or the carriage is sent to the transfer area and then transported back to the standby area for bucking. It becomes possible to provide to the shift apparatus side.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing the overall layout of the vehicle body assembly apparatus according to an embodiment of the present invention, Figures 2 to 4 are a front view, a plan view and a side view showing the overall layout of the vehicle body assembly apparatus according to an embodiment of the present invention. to be.

As shown in Figures 1 to 4, one side of the vehicle assembly line is provided with a work area to which the buck shift device 11 belongs, and a transport area to which the transfer unit 12 belongs is formed at the rear thereof. On both sides of the transfer area, a stock area for carriage storage and a standby area for carriage waiting are respectively formed.

The stock area is an area for storing the carriages 10 on which various models are mounted and supplying the corresponding models according to the change of the vehicle type, and the waiting area is the immediately preceding carriage 10 to be replaced for use in the next process. Means the waiting area.

The transfer area refers to an area for transferring the carriage 10 provided from the stock area to just before the standby area.

The buck shift device 11 disposed in the work area positions the carriage 10 on which the model for setting the body is mounted to the work area, or when the model is changed, moves the carriage 10 to a carriage replacement section outside the work area. It serves to move, and includes a buck shift slide 20 that can be carried by carrying the carriage (10).

The buck shift device 11 can be operated in three stages of the forward position, the intermediate position and the reverse position, the forward position is a situation in which work such as welding to the body is made, the intermediate position is the same without changing the model It is a situation when working with a model continuously, and a backward position is a situation where the buck shift apparatus 11 has backed up to the position of a waiting area in order to change a model.

Here, since the buck shift device 11 can apply the buck shift which is usually used in the main buck process of the vehicle assembly line, a detailed description thereof will be omitted.

The transfer area is provided with a transfer unit 12 which receives the carriage 10 from the stock area and transfers it to the front of the standby area, and a transfer rail frame installed over the entire area formed behind the buck shift device 11. 15 is provided.

Accordingly, the transfer unit 12 may move the carriage 10 while moving in the front-rear direction (Y-axis direction) along the transfer rail frame 15.

The conveying unit 12 is composed of a long rectangular frame structure and provides a conveying slide 16 capable of seating the carriage 10, and provides power for the movement of the conveying slide 16, that is, the conveying slide 16. It includes a drive for transporting the movement 17,

At this time, the transfer drive device 17 is installed on the transfer slide 16 to provide power while moving together when the transfer slide 16 moves, and the rack / pinion drive method using the power of the motor is applied. Can be.

For example, as shown in FIG. 5, the pinion 23 is mounted on the drive unit 17 for feeding, that is, the shaft of the motor, and the pinion 23 at this time is moved forward and backward on the transfer rail frame 15. The entire transport slide 16 including the drive device 17 for transfer by the engagement transmission action of the pinion 23 that rolls on the rack 24 when the motor is operated, while being engaged with the rack 24 installed accordingly. Can be moved in the front-rear direction.

In addition, the roller assembly 27 is mounted at both ends of the conveying slide 16, and the roller assembly 27 is slide-bonded to the side of the rail 28 at both side ends of the conveying rail frame 15 at this time. Thus, the movement of the roller assembly 27 can be made more stable.

Therefore, when the conveyance slide 16 of the said conveying unit 12 receives the carriage 10 from the stock area side, it carries this carriage 10, moves to the front of the waiting area, and delivers it to the waiting area side waiting unit 14. It is possible to give, the transfer slide 16 is finished to transfer the carriage 10 is moved back along the transfer rail frame 15 can be returned to its original position.

The stock area is provided with a stock unit 13 which moves the carriage 10 to the conveying unit 12 side of the conveying area or recovers the carriage 10 on the buck shift device 11 positioned to the conveying area into the stock area. do.

At this time, at least one set of each stock unit 13 is provided on both sides of the transfer area, and one carriage 10 is assigned to each stock unit 13.

In addition, different models are mounted on the carriage 10 attached to each stock unit 13, so that various models can be provided on the side of the buck shift device 11, and eventually, flexible handling of multi-vehicle mixing is possible. It becomes possible.

The present invention provides an example of a stock unit 13 arranged side by side, two sets each on both sides of the transfer area.

The stock unit 13 includes a stock rail frame 18 for guiding the movement of the carriage 10 and a driving device 19 for moving the carriage 10 while pushing or pulling the carriage 10 directly.

The stock rail frame 18 is installed side by side along the left and right directions (X-axis direction) and are arranged in a line with the transfer slide 16 in the transfer unit 12 at the same height in parallel with each other. The carriage 10 on the stock rail frame 18 can be moved directly onto the conveying slide 16.

Of course, the stock rail frame 18 may be positioned in parallel with the buck shift slide 20 of the buck shift device 11 at the same height.

The stock drive device 19 is a means for moving the carriage 10 in a substantially pushed or pulled out manner. The stock carrier 19b moving on the stock rail frame 18 and the stock carrier ( It consists of the drive motor 19a for stock provided on 19b).

Here, in the case of the stock drive device 19, like the transfer drive device 17, the pinion (not shown) and the stock rail frame 18 mounted on the shaft of the stock drive motor 19a are installed. It is possible to move the carriage 10 by the engagement transmission method between the rack (not shown).

In particular, the stock carrier 19b of the stock drive device 19 is provided with a hook 26 as a means for binding with the carriage 10 side when pushing the carriage 10 out or dragging in. Correspondingly, a hook 25 and a roller 25 which can be selectively hooked up are provided on the carriage 10 side.

For example, as shown in FIG. 6 (the carrier shown in FIG. 6 is a standby carrier, but the structure or function is the same as that of the stock carrier, which will be described later). B " shaped hook 26 is formed to protrude toward the end of the carriage 10, and as shown in Fig. 7, the end of the carriage 10 protrudes toward the stock carrier 19b side as shown in FIG. Roller 25 is provided.

Therefore, as shown in FIG. 8, the hook 26 of the stock carrier 19b and the roller 25 of the carriage 10 are caught by the carriage advance direction, and the carriage by the stock carrier 19b makes it possible. 10 can be moved.

That is, the hook 25 of the carrier 19b for the stock can be engaged with the roller 25 in the direction in which the carriage 10 is pushed or pulled (in the X-axis direction), and at the right angle (Y-axis direction). ) Is formed in a substantially "b" shape that allows free passage of the roller 25, so that the carrier 19b for the stock can easily move or release the carrier 10 using the hook 25. will be.

The standby unit 14 moves the carriage 10 to the buck shift device 11 in the standby area, or moves the carriage 10, which is transferred and positioned to the front of the standby area by the transfer unit 12, into the standby area. Is prepared.

The standby unit 14 has a standby model to be replaced in advance when a model is changed, and when a model change is necessary, it immediately serves to supply the corresponding model. For this purpose, a stock unit located in a stock area at a position adjacent to the work area. It is installed alongside (13).

The standby unit 14 has the same shape as the stock unit 13 in terms of structure and function.

For example, the stand-by unit 14 is a stand-by rail frame positioned in parallel with the transfer slide 16 of the transfer unit 12 and the buck shift slide 20 of the buck shift device 11 at the same height. And 21, and a standby driving device 22 is provided on the standby rail frame 21 to push or pull the carriage 10 in and out.

In addition, the standby drive device 22 is a stock carrier 22b and a stock carrier 22b which moves in a form of pushing or pulling the carriage 10 substantially while moving on the stock rail frame 18. It is composed of a drive motor for stock (22a) to provide a driving force while being installed on the).

Here, the standby drive device 22 also has a drive method using a meshing transmission between the rack and the pinion and a binding structure using a selective hook between the hook and the roller, as in the case of the stock drive device 19.

On the other hand, the carriage 10 for mounting the model is disposed in the stock area and the standby area, in which the carriage 10 is composed of a rectangular frame structure and the carriage main body 10a moving along the rail frame of each area and , In order to set the model is configured to include a model setting unit 10b coupled to both sides of the carriage body 10b at a predetermined height.

Accordingly, the model provided by the robot, the hanger, or the like can be mounted in a structure that is fastened and fixed on both model setting portions 10b of the carriage 10.

Therefore, looking at the state of use of the vehicle body assembly device is configured as follows.

9 to 13 are plan views illustrating a process of transferring a carriage of a stock area to a standby area in a vehicle body assembling apparatus according to an embodiment of the present invention.

As shown in Figs. 9 to 13, a process of preparing a model of a replacement target for the next process in the waiting area is prepared in advance in preparation for a model change, which is performed while work is being performed in the work area. Can be.

That is, since the model 100 can be replaced immediately after the model 100 is prepared in advance, the model can be changed within such a short time.

In a separate stock area other than the working area, the model is changed in advance. After the carriage 10 on which the model 100 is mounted is removed from the stock area and burned on the transport slide 16 of the transport area, the transport slide 16 Advances to the front position of the waiting area, and then prepares a model to be replaced when the waiting drive 22 of the waiting unit 14 waiting in the waiting area drags the carriage 10 and enters the waiting area. It becomes possible.

For example, the stock drive device 19 of the stock unit 13 pushes the carriage 10 on which the model 100 is mounted and moves the carriage 10 over the feed slider 16 of the transfer unit 12. Take over.

At this time, the driving device for stock 19 is to maintain the position in the position of the carriage 10 is handed over.

Next, the transfer slider 16 of the transfer unit 12 moves along the transfer rail frame 15, and goes to a position immediately before the standby area to stop.

At this time, the roller of the carriage 10 in the conveyance slide 16 is in a state naturally caught by the hook 26 of the waiting drive device 22 which came out of the end of the waiting rail frame 21 of the waiting area.

Subsequently, when the standby driving device 22 pulls the carriage 10 and enters the standby area, all preparations for changing the model can be completed.

Then, the conveyance slider 16 which has passed the carriage 10 is located backwards to an area (Home position) that does not interfere with work.

14 to 19 are plan views illustrating a process of transferring a carriage of a standby area to a buck shift device when a model is changed in a vehicle assembly apparatus according to an embodiment of the present invention.

As shown in Figs. 14 to 19, the process of changing the model 100 prepared in the waiting area is shown here.

When there is no model change, the buck shift device 11 performs work on the corresponding vehicle model only while moving forward and backward between the forward position and the intermediate position in the work area, and when the model change is required, the reverse position (the position before the waiting area) After moving up to take over the model that is waiting, you will work with that model for the next process.

For example, the buck shift slide 20 of the buck shift device 11 moves along the conveying rail frame 15 with the carriage 10 on which the model being worked is mounted, and at one empty waiting area position. Will stop.

At this time, the roller of the carriage 10 in the buck shift slide 20 is naturally caught by the hook 26 of the standby drive device 22, which has come out at the end of the standby rail frame 21 in the standby area.

Subsequently, after the standby drive unit 22 pulls the carriage 10 into the standby area, it is ready to receive the new model 100 at that position, and the standby unit 14 on the other side of the standby unit 14 The standby drive device 22 pushes the carriage 10 on which the model 100 to be replaced is mounted and takes over the carriage 10 on the buck shift slide 20.

At this time, the standby driving device 22 maintains its position in the position where the carriage 10 is handed over.

Next, the buck shift device 11, which has received the carriage 10 on which the new model 100 is mounted, moves to the work area and performs work with the corresponding model 100 for the changed vehicle model, thereby changing the model. Is finished.

The work area, the waiting area and the stock area can be separated so that the model can be changed even during working hours, that is, the model can be changed without stopping the body assembly line, thereby efficiently operating the system related to the model change.

Claims

It includes a buck shift slide 20 which is installed at one side of the body assembly line and moves along the following transport rail frame 15 to position the carriage 10 on which the model for setting the body is mounted to the work area. A buck shift device 11;

It is disposed in the conveying area formed forward and rearward to the rear of the center of the buck shift device 11, the portion in which the carriage 10 is seated in order to move the carriage 10 to the front of the waiting area while moving in the conveying area. A conveying slide 16 moving along a conveying rail frame 15 provided toward the buck shifting device 11 in the region, and a conveying slide mounted on the conveying slide 16 and moving the conveying slide 16. A transfer unit 12 including a drive unit 17 for driving;

It is disposed in the standby area formed on both sides of the transfer area to the rear of the working area, to move the carriage 10 in the standby area to the buck shift device 10, or to move the carriage 10 located in front of the standby area. It is possible to guide the carriage 10 in order to move it into the waiting area and at the same height to be positioned in parallel with the transfer slide 16 of the transfer unit 12 and the buck shift slide 20 of the buck shift device 11. A standby unit (14) comprising a standby rail frame (21) and a standby driving device (22) capable of pushing and exiting or dragging the carriage (10) while moving along the standby rail frame (21);

It is disposed in the stock area formed parallel to the standby area on both sides of the transport area to the rear of the transport area, and moves the carriage 10 in the stock area to the transport area or moves the carriage 10 in the transport area to the stock area. A stock rail frame 18 which is capable of guiding the carriage 10 and at the same time in parallel with the conveying slide 16 of the conveying unit 12 at the same height, and the stock rail frame 18. A stock unit (13) comprising a stock drive (19) capable of pushing in or out of the carriage (10) while moving along;

Including,

The standby drive 22 and the stock drive 19 is provided with a carrier (19b, 22b) that can be selectively hooked with the carriage 10 when pushing out or pulling in the carriage (10) Body assembly device characterized in that.
2. The vehicle body assembling apparatus according to claim 1, wherein the driving device is driven by engagement transmission between the pinion (23) mounted on the shaft of the motor and the rack (24) mounted on the rail frame side.
The method of claim 1, wherein the drive device is a "b" shaped hook 26 that can be engaged with the roller 25 of the carriage 10 in the direction of pushing or pulling and can pass freely in a direction perpendicular to this Body assembly device, characterized in that to be able to move or release the carrier (10) by using.
The stock unit 13 of the stock area is provided with at least one or more sets on each side of the stock area, respectively, and a different model is provided for each carriage 10 assigned to each stock unit 13. Body assembly apparatus characterized in that the mounting.