KR20210065362A - Mounting system and method of tire in vehicle manufacturing line - Google Patents

Abstract

The present invention relates to a system and a method for mounting tires in a vehicle production line. The system comprises: a vehicle body transfer unit for advancing, in a direction, a vehicle body on which tires are to be mounted; a vehicle body lift unit for lifting the vehicle body transferred by the vehicle body transfer unit; a tire mounting unit for mounting the tires on the vehicle body lifted by the vehicle body lift unit; a tire pickup unit on which the tires having nuts to be picked up by the tire mounting unit are disposed; and a control unit for controlling the operation of the vehicle body transfer unit, the vehicle body lift unit, the tire mounting unit, and the tire pickup unit by transmitting control signals thereto. The method for mounting tires in a vehicle production line comprises the steps of: (a) transferring a vehicle body on which tires are to be mounted by a vehicle body transfer unit; (b) lifting the transported vehicle body by the vehicle body lift unit; (c) picking up the tires provided on the tire pickup unit by the tire mounting unit; (d) setting tire mounting positions by driving the tire mounting unit in a state in which the tires are picked up; (e) mounting the picked-up tires on the wheel shafts of the vehicle body and then fastening the same by the tire mounting unit; and (f) releasing the lifting of the vehicle body by the vehicle body lift unit, and returning the vehicle body lift unit to an original state. Therefore, productivity can be significantly improved.

Description

TECHNICAL FIELD The present invention relates to a system and method for automatically mounting tires in an automobile production line.

The present invention relates to a system and method for automatic tire mounting of an automobile production line, and more particularly, to a system and method for automatic tire mounting of an automobile production line, and by enabling the tire to be automatically mounted on a vehicle body that is sequentially transferred by being applied to an automobile production line, the overall automation of the automobile production line It relates to a tire automatic mounting system and method of an automobile production line that can improve productivity by making the

In general, automobiles are produced by assembling or welding about 20,000 to 30,000 various parts in all mass production lines.

As such, a line for producing a vehicle is generally divided into a body line constituting the body, a painting line for expressing the color of the body surface, and a design line for assembling and mounting various interior parts in the finished body.

Recently, in order to assemble interior parts in the design line, the car body is placed on a transport bogie and supplied, and in the process of transporting the car body along the supply line, an automation line in which a product suitable for each part is installed inside the robot, etc. it has become.

However, in the conventional system for mounting tires, a chain block is installed so that it can slide by rollers on a transport rail, and a nut fastening tool is coupled to the lower end of the chain block. is supplied to the wheel shaft by the operator, and the nut is supplied to the nut fastening tool, and then the operator uses the nut fastening tool to combine the wheel bolt with the wheel bolt. There was a problem being

Korean Patent Publication No. 10-2012-0013826 (2012.02.15.)

The present invention has been devised in view of the various problems described above, and the technical problem to be solved by the present invention is to be applied to an automobile production line and to automatically mount a tire on a vehicle body that is sequentially transported, thereby producing a vehicle. It is to provide a tire automatic mounting system and method for an automobile production line that can significantly improve productivity by allowing the entire line to be automated.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

According to an exemplary embodiment of the present invention, there is provided a tire automatic mounting system for a vehicle production line, comprising: a vehicle body transfer unit for advancing a vehicle body on which a tire is to be mounted in one direction; a vehicle body lift unit for lifting the vehicle body transferred by the vehicle body transfer unit; a tire mounting unit for mounting a tire on the vehicle body lifted by the vehicle body lift unit; a tire pickup unit on which a tire having a nut set to be picked up by the tire mounting unit is disposed; and a control unit for controlling operation by transmitting control signals to the vehicle body transfer unit, the vehicle body lift unit, the tire mounting unit, and the tire pickup unit, respectively.

Here, the vehicle body lift unit includes a transport rail to be moved in a direction parallel to the vehicle body transport unit, and when the vehicle body lift unit is located on one side of the transport rail, the vehicle body lift unit senses this and transmits a signal to the control unit to lift the vehicle body. A position sensing unit for releasing the lifting of the additional vehicle body may be installed.

In addition, the tire mounting unit includes a robot arm that rotates and articulates in response to an input signal from the control unit, and a tire installed at a tip side of the robot arm to pick up a tire set from the tire pickup unit by an input signal from the control unit. and a tire mounting tool for mounting a tire on a wheel shaft of a vehicle body, wherein the tire mounting tool includes a holding unit for holding a tire while expanding or contracting by an input signal from the control unit, and a process of picking up and transporting a tire may be configured to include a nut fastening part for fixing the position of a nut set on the wheel of the tire and fastening the nut with a wheel bolt formed to protrude from the wheel shaft.

In addition, when the tire is mounted on the wheel shaft of the vehicle body using the tire mounting tool, a photo sensor that detects the correct position of the wheel shaft and transmits a signal to the control unit so that the tire is mounted at the correct position It may consist of a configuration that further includes.

Meanwhile, according to an embodiment of the present invention, there is provided a method for automatically mounting tires in an automobile production line, comprising the steps of: (a) transferring a vehicle body on which a tire is to be mounted by a vehicle body transfer unit; (b) lifting the transported vehicle body by a vehicle body lift unit; (c) picking up the tire set in the tire pickup unit by the tire mounting unit; (d) setting a tire mounting position by driving the tire mounting unit in a state in which the tire is picked up; (e) attaching the picked-up tire to the wheel shaft of the vehicle body and then fastening the tire; and (f) releasing the lifting of the vehicle body lift unit with respect to the vehicle body and returning the vehicle body lift unit to an original state.

Other specific details of the invention are included in the detailed description and drawings.

According to the automatic tire mounting system and method of the automobile production line according to the embodiment of the present invention, the tire is automatically mounted on the vehicle body that is applied to the automobile production line and is sequentially transferred, thereby achieving overall automation of the automobile production line. As a result, the effect of greatly improving productivity can be provided.

The effect according to the present invention is not limited by the contents exemplified above, and more various effects are included in the present specification.

1 is a plan view schematically showing the configuration of an automatic tire mounting system of an automobile production line according to an embodiment of the present invention.
2 to 9 are partial perspective views sequentially illustrating a process of mounting a tire to a wheel shaft of a vehicle body by an automatic tire mounting system of an automobile production line according to an embodiment of the present invention.
10 is a perspective view illustrating a configuration of a tire mounting unit in an automatic tire mounting system of an automobile production line according to an embodiment of the present invention;
11 is a side view illustrating a state in which a tire is mounted on a wheel shaft of a vehicle body by the tire mounting unit of FIG. 10;
12 is a block diagram illustrating a control relationship of an automatic tire mounting system of an automobile production line according to an embodiment of the present invention.
13 is a block diagram illustrating the configuration of a tire mounting unit in FIG. 12 ;
14 is a flowchart illustrating an automatic tire mounting method of a vehicle production line according to an embodiment of the present invention.

Advantages and features of the present invention, and a method for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in a variety of different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention pertains It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Accordingly, in some embodiments, well-known process steps, well-known structures, and well-known techniques have not been specifically described in order to avoid obscuring the present invention.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. As used herein, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, includes and/or comprising means not excluding the presence or addition of one or more other components, steps and/or actions other than the stated components, steps and/or actions. use it as And, “and/or” includes each and every combination of one or more of the recited items.

Further, the embodiments described herein will be described with reference to perspective, cross-sectional, side view and/or schematic views that are ideal illustrative views of the present invention. Accordingly, the form of the illustrative drawing may be modified due to manufacturing technology and/or tolerance. Accordingly, embodiments of the present invention are not limited to the specific form shown, but also include changes in the form generated according to the manufacturing process. In addition, in each drawing shown in the embodiment of the present invention, each component may be illustrated in a somewhat enlarged or reduced manner in consideration of convenience of description.

Hereinafter, an automatic tire mounting system and method of an automobile production line according to an embodiment of the present invention will be described in detail based on the accompanying exemplary drawings.

1 is a plan view schematically showing the configuration of an automatic tire mounting system of an automobile production line according to an embodiment of the present invention, and FIGS. 2 to 9 are by an automatic tire mounting system of an automobile production line according to an embodiment of the present invention. It is a partial perspective view sequentially illustrating a process of mounting a tire to a wheel shaft of a vehicle body.

10 is a perspective view illustrating the configuration of a tire mounting part in the automatic tire mounting system of an automobile production line according to an embodiment of the present invention, and FIG. 11 is a tire mounted on a wheel shaft of a vehicle body by the tire mounting unit of FIG. It is a side configuration diagram showing the state of being

12 is a block diagram showing the control relationship of the automatic tire mounting system of an automobile production line according to an embodiment of the present invention, and FIG. 13 is a block diagram showing the configuration of the tire mounting unit in FIG. 12 .

As shown in FIGS. 1 to 9 and 12 , the automatic tire mounting system 100 of an automobile production line according to an embodiment of the present invention moves the vehicle body 10 on which the tire T is to be mounted in one direction. A vehicle body transfer unit 200 such as a moving bogie, a vehicle body lift unit 300 for lifting the vehicle body 10 transported by the vehicle body transfer unit 200 by an input signal, and the vehicle body lift unit 300 A tire in which a tire mounting unit 500 for mounting a tire T and a nut-set tire T are supplied to the lifted vehicle body 10 by an input signal, and the tire T is picked up by the tire mounting unit 500 . It may be configured to include the pickup unit 400 .

Referring to FIG. 1 , a vehicle body lift unit 300 , a tire mounting unit 500 , and a tire pickup unit 400 are respectively opposed to both sides centering on a vehicle body transfer unit 200 such as a bogie that advances the vehicle body 10 in one direction. ) can be placed.

However, in FIGS. 2 to 9, the vehicle body lift unit 300, the tire mounting unit 500, and the tire pickup unit 400 are provided on only one side in a state in which the body transport unit 200 configuration is excluded. However, this is for convenience of explanation, and it is obvious that the vehicle body lift unit 300 , the tire mounting unit 500 , and the tire pickup unit 400 are respectively disposed around the vehicle body transfer unit 200 as shown in FIG. 1 . .

2 and 3 show a state in which the vehicle body 10 is transported for tire mounting by the vehicle body transfer unit 200 . In this case, the tire mounting unit 500 picks up the tire set in the tire pickup unit 400 . to prepare

Here, the tire mounting unit 500 may include a robot arm 502 that rotates and articulates according to a control signal from the control unit 600 and a tire fastening tool installed at the tip of the robot arm 502 . However, the detailed configuration and operation relationship of the tire fastening tool will be described in detail later.

As described above, when the vehicle body 10 reaches the tire mounting position by the vehicle body transfer unit 200 in a state in which the tire mounting unit 500 picks up the tire from the tire pick-up unit, the vehicle body lift unit 300 controls the control unit 600 . ) to lift the vehicle body 10 transported by the vehicle body transfer unit 200 by a predetermined height by operating by the input signal.

In this case, the vehicle body lift unit 300 may move in parallel along the transport rail 320 in the moving direction of the vehicle body transport unit 200 .

That is, the vehicle body lift unit 300 may move at the same speed as that of the vehicle body transfer unit 200 along the transfer rail 320 , that is, a position where all tires are mounted on the vehicle body 10 , that is, the tip of the transfer rail 320 . When it is located on the side, after releasing the lifting of the vehicle body 10 by the input signal of the control unit 600, it moves to the original position along the transport rail 320 to prepare for the lifting of the next vehicle body 10 do.

Here, a position sensing unit 330 for detecting the position of the vehicle body lift unit 300 and transmitting an input signal to the control unit 600 may be installed at the tip side of the transfer rail 320, and the operation relationship thereof will be determined later. It will be described in detail.

The vehicle body lift unit 300 as described above may be configured to include a lifting block 310 that moves forward in response to an input signal from the control unit 600 to lift while supporting the lower portion of the vehicle body 10 .

As such, when the vehicle body 10 is lifted to a predetermined height by the vehicle body lift unit 300 and moves at a set speed by the vehicle body transfer unit 200, the tire mounting unit 500 operates as shown in FIG. A tire is mounted on the front wheel side wheel shaft of the vehicle body 10 .

When the tire mounting on the front wheel shaft of the vehicle body 10 is completed and the vehicle body 10 continues to advance at a set speed by the vehicle body transfer unit 200 and the vehicle body lift unit 300 , the tire mounting unit 500 5 to 7 , after picking up the tire from the tire pickup unit 400 again by the input signal of the controller 600 , the tire is mounted on the rear wheel shaft of the vehicle body 10 . .

As described above, after each tire is mounted on the front wheel and the rear wheel with respect to any one vehicle body 10 , the tire mounting unit 500 continues to return the tire from the tire pickup unit 400 by the input signal of the control unit 600 . After picking up the tire, the tire is prepared to be mounted on the next vehicle body 10 transported by the vehicle body transfer unit 200 .

At this time, the tire lift unit is moved to the front end of the transport rail 320 , and when the tire lift unit moves to the position of the position sensing unit 330 , the control unit 600 controls the vehicle body by an input signal from the position sensing unit 330 . A lifting signal is applied to lift the lift unit 300 .

Accordingly, as shown in FIG. 8 , the vehicle body lift unit 300 releases the lifting of the vehicle body 10 on which the tire mounting is completed, and then returns to the original position along the transport rail 320 as shown in FIG. 9 . It returns to enter the lifting preparation stage of the next vehicle body (10).

Accordingly, in the automatic tire mounting system 100 and method of a vehicle production line according to an embodiment of the present invention, the vehicle body 10 sequentially transferred by the vehicle body transfer unit 200 as the above-described operation process is continuously repeated. By being able to automatically install the tires, the overall automation of the automobile production line can be achieved, and thus productivity can be greatly improved.

On the other hand, the tire mounting unit 500 includes a robot arm 502 that rotates and articulates according to an input signal from the control unit 600 , and is installed on the tip side of the robot arm 502 to respond to the input signal of the control unit 600 . It may be configured to include a tire mounting tool 510 for picking up a tire set in the tire pickup unit 400 and mounting the tire on the wheel shaft of the vehicle body 10 .

In the tire mounting tool 510, as shown in FIGS. 10, 11, and 13, a gripper capable of gripping the tire as the cylinder 530 is expanded or contracted by the input signal of the controller 600. 520 and a nut fastening part 540 for fixing the positions of nuts set on the wheel of the tire in the process of picking up and transporting the tire and fastening the nuts with the wheel bolts formed to protrude from the wheel shaft. have.

In addition, the tire mounting tool 510 detects the exact position of the wheel shaft when the tire is mounted on the wheel shaft of the vehicle body 10 in a state in which the tire mounting unit 500 picks up the tire so that the tire is mounted at the correct position. It can be configured to further include a photosensor 504 for

That is, the vehicle body 10 is moving at a constant speed by the vehicle body transfer unit 200 and the vehicle body lift unit 300, and a plurality of wheel bolts are formed to protrude radially from the wheel shaft. The tire mounting tool 510 of the tire mounting unit 500 further includes a photo sensor 504 for detecting the exact position of the moving wheel shaft and transmitting this signal to the control unit 600 .

Accordingly, when the photo sensor 504 detects the position of the wheel shaft on which the tire is to be mounted and transmits a signal to the controller 600 , the controller 600 transmits a signal to the tire mounting unit ( The robot arm 502 of 500 is driven and the tire mounting tool 510 is rotated at the same time to seat the tire against the wheel shaft while the nuts set on the tire are aligned with the wheel bolts.

In this way, after the tire is seated in the correct position with respect to the wheel shaft, the control unit 600 applies a driving signal to the nut fastening unit 540 again, thereby fastening the plurality of nuts to the wheel bolts, thereby preventing the mounting of the tire. will complete

14 is a flowchart illustrating an automatic tire mounting method of an automobile production line according to an embodiment of the present invention. Referring to FIG. 14, the automatic tire mounting method of an automobile production line according to an embodiment of the present invention will be described once again. As follows.

First, a step ( S100 ) of sequentially transferring the vehicle body 10 on which the tire is to be mounted is performed by the vehicle body transfer unit 200 .

Next, the step S200 of lifting the vehicle body 10 on which the tire is to be mounted by the vehicle body lift unit 300 is performed, and the tire mounting unit 500 picks up the tire set in the tire pickup unit 400 . Step S300 is performed.

Next, after the tire mounting unit 500 drives the tire in a picked-up state to set the tire mounting position ( S400 ), the tire is mounted on the wheel shaft of the vehicle body 10 , and then the nut is attached to the wheel bolt. By performing the fastening step ( S500 ) to the vehicle body 10 , the tire is automatically mounted on the vehicle body 10 .

In this way, when the tire mounting on the vehicle body 10 is completed, the vehicle body lift unit 300 performs a step (S600) of releasing the lifting of the vehicle body 10, then returns to the original state and returns to the next vehicle body ( 10) Enters the tire mounting preparation stage.

As described above, according to the tire automatic mounting system 100 and method of the automobile production line according to the embodiment of the present invention, the tire T is applied to the automobile production line and sequentially transferred to the vehicle body 10 . By being automatically mounted, the overall automation of the automobile production line is achieved, and consequently, the effect of greatly improving productivity can be provided.

Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

10: body T: tire
100: automatic tire mounting system 200: body transport unit
300: body lift unit 310: lifting block
320: transfer rail 330: position detection unit
400: tire pickup unit 500: tire mounting unit
502: robot arm 504: photo sensor
510: tire mounting tool 520: grip part
530: cylinder 540: nut fastening part
600: control unit

Claims (5)

a vehicle body transfer unit for moving a vehicle body on which a tire is to be mounted in one direction;
a vehicle body lift unit for lifting the vehicle body transferred by the vehicle body transfer unit;
a tire mounting unit for mounting a tire on the vehicle body lifted by the vehicle body lift unit;
a tire pickup unit on which a tire having a nut set to be picked up by the tire mounting unit is disposed; and
and a control unit for controlling operation by transmitting control signals to the vehicle body transfer unit, the vehicle body lift unit, the tire mounting unit, and the tire pickup unit, respectively.
The method of claim 1,
The vehicle body lift unit,
and a transfer rail to be moved in a direction parallel to the vehicle body transfer unit,
Auto-mounting of tires in an automobile production line, characterized in that a position sensing unit is installed on one side of the transfer rail to detect when the vehicle body lift unit is located and transmit a signal to the control unit to release the vehicle body lift unit lifting from the vehicle body. system.
The method of claim 1,
The tire mounting unit,
A robot arm that rotates and jointly moves by the input signal of the control unit;
and a tire mounting tool installed at the front end of the robot arm to pick up a tire set from the tire pickup unit by an input signal from the control unit, and to mount the tire on a wheel shaft of a vehicle body;
The tire mounting tool,
a gripper for gripping the tire while being expanded or contracted by the input signal of the controller;
Automatic tire mounting of an automobile production line, comprising: a nut fastening part for fixing a position of a nut set on a wheel of a tire during a tire pickup and transport process, and fastening the nut with a wheel bolt formed to protrude from a wheel shaft system.
4. The method of claim 3,
When the tire is mounted on the wheel shaft of the vehicle body using the tire mounting tool,
and a photo sensor for detecting the exact position of the wheel shaft and transmitting a signal to the control unit so that the tire is mounted at the correct position.
The method for automatically mounting a tire using the automatic tire mounting system of an automobile production line according to any one of claims 1 to 4,
(a) transferring a vehicle body on which a tire is to be mounted by a vehicle body transfer unit;
(b) lifting the transported vehicle body by a vehicle body lift unit;
(c) picking up the tire set in the tire pickup unit by the tire mounting unit;
(d) setting a tire mounting position by driving the tire mounting unit while picking up the tire;
(e) the tire mounting unit attaching the picked-up tire to the wheel shaft of the vehicle body and then fastening the tire; and
(f) releasing the lifting of the vehicle body lift unit with respect to the vehicle body and returning the vehicle body lift unit to an original state.

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