KR101824720B1 - Tilting conveyor hanger - Google Patents

Abstract

According to the present invention, disclosed is a tilting conveyor hanger which comprises: a hanger main body, of which a vehicle body is driven at the low speed in a suspended state from an orbit of an overhead conveyor system; a semicircular tilting frame which switches the vehicle body, formed at a lower portion of the hanger main body in a suspended state, between a normal mode and a tilting mode; a tilt driving unit which drives to switch the tilting frame from the normal mode to the tilting mode, or vice versa; a sliding arm installing unit which is installed at both ends of a lower portion of the tilting frame and having a sliding arm; a sliding arm, installed in the sliding arm installing unit, which keeps the fixed state of the vehicle body and is free to move in the longitudinal direction and the width direction in accordance with standards of the vehicle body; and a locking apparatus which stops the driving of the tilt driving unit and keeps the vehicle body in an inclined state when switching to the tilting mode is completed.

Description

Tilting Conveyor Hanger {TILTING CONVEYOR HANGER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanger for a conveyor, and more particularly, to an overhead conveyor system having a hanger for carrying a car body suspended from a chassis line of an automobile assembly line, The present invention relates to a hinged hanger capable of assembling a part on the underbody side while tilting the vehicle body.

Generally, the process of producing a vehicle is performed by a plurality of steps. When the vehicle body transfer apparatus transports the work body to a position where the work body, the work tool, and the parts are provided, And the like.

As one of the overhead conveyors that are the vehicle transport apparatuses, in the assembly line using an electric monorail system (EMS) carrier, the main start command is manipulated for each time to operate assembly, chassis processing, and final finishing line .

EMS (Electric Monorail System) Carrier is a transportation facility that transports parts from the automated production line to the next process at high speed or connects the process to the process. It is configured to run along the rails and carry the parts by driving the traveling motor have.

The basic equipment for assembling the vehicle is combined with the equipment which performs various assembly, molding and processing tasks required for the vehicle body which is made to pass the quality standard after production. For these terms, the specific individual process The operations and related facilities for performing them will be omitted in this specification.

In preparing the assembly line as described above, it is particularly difficult to solve problems when preparing a line for manufacturing a new automobile model, or when applying or modifying an existing line to a modified model or a process of a different model .

On the other hand, in an overhead conveyor system having a hanger for transporting a vehicle body in a hanging state from a chassis line during an assembling process, the worker's gaze does not look at the lower part from the upper part, .

In order to stand up for a long time and keep an eye on the upper part, it is necessary to work with a throat posture. Also, when workers who handle heavy objects such as engines or suspensions are allowed to work in the chassis line, occupational diseases arise in the musculoskeletal system, There is a problem that the production quality is deteriorated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a tilting type conveyor hanger capable of quickly responding to changing of a model to be assembled or application of a new model in an automobile chassis process line.

It is another object of the present invention to provide a tilting type conveyor hanger configured to allow a worker to look upwards from the lower portion of an automobile body in an existing automobile chassis process line and face the front side of the automobile body to perform an assembling operation.

In order to achieve the above object, the present invention provides a hanger apparatus comprising: a hanger main body which travels at a low speed while being suspended from an orbit of an overhead conveyor system; A semicircular tiltable frame configured to be disposed at a lower portion of the hanger main body and adapted to switch between a normal mode and a tilt mode; A tilting drive for driving the tilting frame to switch from a normal mode to a tilting mode or vice versa; A sliding arm mounting portion formed at both ends of the lower end of the tilting frame and on which the sliding arm is mounted; A sliding arm mounted on the sliding arm mounting portion and capable of moving in a longitudinal direction and a width direction according to a standard of a vehicle body while keeping the vehicle body in a fixed state; And a locking device for stopping the driving of the tilting drive unit when the switching to the tilting mode is completed and keeping the vehicle body in an inclined state.

Preferably, the tilting drive unit includes: a timing belt which is in close contact with an outer circumferential portion of the semi-circular tilting frame and whose both ends are bound in the vicinity of both ends of the tilting frame; And a timing belt drive motor for driving the timing belt.

Preferably, the semicircular tilt frame is composed of two pieces in the longitudinal direction of the vehicle body.

Preferably, the sliding arm mounting portion is provided with a sliding arm driving rail for moving the sliding arm in the longitudinal direction of the vehicle body.

Preferably, the sliding arm has a pin-shaped fixing portion at its lower end capable of adjusting the length in the width direction of the vehicle body.

Preferably, the pin-type fixing portion of the sliding arm is fitted in the pin-like fixing hole formed in the lower portion of the vehicle body.

Preferably, the locking device includes a drive motor ON / OFF switch for stopping the drive of the tilting drive when the switching to the tilting mode is completed.

Preferably, the locking device includes a locking bar inserted into a plurality of locking bar insertion holes formed along a circumferential side surface portion of the tiltable frame when the tilting driving portion is stopped, and a locking bar inserted into the locking bar insertion hole And an air cylinder or motor for releasing the air cylinder.

 Preferably, the drive motor on / off switch is turned on / off by an enlarged diameter portion formed on the locking bar.

Preferably, a roller for maintaining the trajectory when the tiltable frame is driven is provided on the outer peripheral portion, the inner peripheral portion and the side surface portion of the tiltable frame.

According to the tilting type conveyor hanger of the present invention having the above-described structure, even when changing a model of a car to be assembled or applying a new model in an automobile chassis process line, it is possible to quickly respond to the standard of a vehicle, Can be improved.

In addition, since the operator can view the car body in front of the chassis process line, the underbody work can be facilitated, the disease can be prevented and the work efficiency can be improved.

Further, even if the vehicle body is tilted, it is fixed to the lower portion of the vehicle body by the sliding arm in the form of a pin, so that damage to the vehicle body can be prevented.

After the tilting is completed, the tilting drive unit is stopped and the vehicle body is kept in the tilted state, so that even if the tilting drive unit fails, the follower action is taken without damaging the vehicle body It is safe for both the body and the operator.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, It will be easy to carry out technical thinking.
1 is a side view showing a state where a hanger according to an embodiment of the present invention is mounted on an automobile chassis line using an electric monorail, which is one of the overhead conveyor systems, when the vehicle body is placed on the hanger.
Fig. 2 is a perspective view of the hanger of Fig. 1 according to an embodiment of the present invention, viewed from the bottom to the top, for more clearly showing the lower structure of the hanger main body.
3 is a perspective view showing a posture at the time when the car body placed on the hanger according to the embodiment of the present invention has completed tilting.
4 is a perspective view showing a part of the tilting frame of the present invention connected to the hanger body and a part of the locking device.
5 is a view showing a timing belt closely attached to the outer peripheral portion of the tiltable frame of the present invention and a timing belt drive motor for driving the timing belt.
6 is a view showing the details of the locking device.
Fig. 7 is a view showing the state of a locking device installed in front and rear.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, It will be easy to carry out technical thinking.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, .

On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

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

1, an electric monorail conveyor system, which is one of the overhead conveyor systems, includes a power rail PR made of I-shaped steel and a free rail FR made up of a pair of left and right groove steel bars arranged in parallel, The hanger 1 of the present invention as a carrier running on the trolley 4 is configured to be suspended from the trolley 4.

The EMS carrier is structured such that power is supplied to the traveling motor in accordance with the contact between the bus bar and the collector, but this is not directly related to the contents of the present invention. do.

1 and 2, a hanger 1 according to the present invention includes a hanger main body 10 that travels at a low speed in a state in which a vehicle body C is suspended in a free rail track of an electric monorail conveyor system.

The hanger main body 10 is a substantially rectangular steel structure connected to the trolley 4 and has a pair of two flange portions 18 on the upper portion thereof for holding the tilt frame 20 to be described later in the longitudinal direction of the vehicle body Two are installed.

The tilting frame 20 is an approximately semicircular frame to be fitted to the flange portion 18 of the hanger main body so that the flange portion 18 and the tilting frame 20, A roller 26 is provided between the outer circumferential portion and the inner circumferential portion and the side surface portion to maintain the trajectory of the tilt frame during driving and to smooth the driving. In addition, since two semicircular tilt frames 20 are provided in the front-rear direction of the vehicle body, it is possible to work in a state where the vehicle body is stable at the time of transportation and tilting.

A timing belt 14 is closely attached to the outer circumferential portion of the tiltable frame 20 and both ends of the timing belt are connected to the sliding arm mounting portion 30, And is fastened to the belt binding portion 24.

The timing belt 14 is engaged with the rotation axis of the timing belt drive motor 12 provided on the upper portion of the hanger main body 10. When the rotation axis of the timing belt drive motor 12 rotates in the first direction, The frame 20 is tilted with the support point on the flange portion 18 so that the vehicle body C fixed by the sliding arm 40 which is formed below the tilting frame 20 tilts, When the tilting operation is completely completed, the posture of the vehicle body C is switched to the tilting mode in which the lower portion of the vehicle body faces the front of the operator.

Thereafter, the rotational axis of the timing belt driving motor 12 rotates in the second direction, and the tilting frame 20 is rotated in the opposite direction with the fulcrum portion 18 at a fulcrum, And returns to the normal mode.

In order to switch the mode of tilting the vehicle body in the tilted state and returning the vehicle body back in this manner, it is necessary to firmly maintain the posture of the vehicle body. Hereinafter, the sliding arm mounting portion 30 and the sliding arm 40 do.

As best shown in Figs. 1 and 2, the sliding arm mounting portion 30 is a substantially rectangular-shaped component fixed to the lower both ends of the barrel frame 20, and two of the sliding arm mounting portions 30 are formed in the front-rear direction of the vehicle body. However, the sliding arm mounting portion 30 may be of any number, for example, one or three, depending on the hanger design.

A sliding arm driving rail 32 is provided in the sliding arm mounting portion 30. The sliding arm driving rail 32 is mounted with a sliding arm 40 and is movable in the longitudinal direction of the vehicle body. Further, the sliding arm 40 has a pin-shaped fixing portion 42 at its lower end which is capable of adjusting the length in the width direction of the vehicle body.

Therefore, the sliding arm 40 can be moved in the front-rear direction and the left-right direction according to the standard of the vehicle, so that the vehicle body can be tilted at the correct position on the hanger.

3, there are a plurality of pin-like fixed insertion holes 44 which can be fitted and fixed to the lower portion of the body of the vehicle body by the pin-shaped fixing portion 42 of the sliding arm 40, The sliding arm 40 can securely and stably tilt the vehicle body in a state in which the pin-like fixing portions 42 are fitted in the pin-like fixing portion insertion holes 44, respectively.

As described above, the driving method of the hanger according to the present invention is a timing belt and a motor driving system. Therefore, there is a possibility that the vehicle body may fall when the timing belt is broken. Therefore, in the present invention, And a locking device that maintains the attitude of the vehicle body in a tilted state when it is necessary even before then.

6 and 7, the locking device 50 includes a plurality of locking bar insertion holes 22 formed along the circumferential side surface portion of the tiltable frame 20 when the tilting driving portion is stopped, And an air cylinder or motor 56 for inserting or releasing the locking bar 52 into the locking bar insertion hole 22.

The locking device 50 includes a driving motor on / off switch 58 for stopping the driving of the tilting driving unit when the switching to the tilting mode is completed. When the tilting frame 20 rotates a predetermined amount, Or when the motor 56 advances the locking bar 52 toward the tilting frame 20 and the enlarged diameter portion 54 formed on the locking bar 52 switches the driving motor on / off switch 58 off, The belt drive motor 12 is turned off.

Thereafter, the locking bar 52 is inserted into the locking bar insertion hole 22 formed in the tiltable frame 20, and in this state, the operator performs the work. After completion of the operation, the locking bar 52 moves away from the locking bar insertion hole 22 and retracts, and the enlarged diameter portion 54 switches on the driving motor on / off switch 58 to turn on the timing belt driving motor 12, The tilting frame 20 is driven again.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, The appended claims are to be considered as falling within the scope of the following claims.

For example, although only the electric monorail system (EMS) has been described in the above-described embodiment, the rails of the driving unit may be not only a monorail but also an H-beam or an I-beam. It is to be understood that the technical idea of the present invention can be used for all overhead conveyors.

1: Hanger 4: Trolley
10: hanger main body 12: timing belt drive motor
14: timing belt 16: roller
18: flange portion 20: tilting frame
22: locking bar insertion hole 24: timing belt binding portion
26: Roller 30: Sliding arm mounting part
32: sliding arm drive rail 40: sliding arm
42: pin type fixing portion 44: pin type fixing portion insertion hole
50: locking device 52: locking bar
54: enlarged diameter part 56: air cylinder or motor
58: Drive motor on / off switch 100:
PR: Power rail FR: Free rail
C: Bodywork

Claims (10)

A hanger main body 10 which travels at a low speed while the vehicle body C is suspended in the orbit of the overhead conveyor system;
A semicircular tilt frame (20) configured to switch between a normal mode and a tilt mode, a body (C) constructed and suspended in a lower portion of the hanger main body (10);
A tilting drive unit for driving the tilting frame 20 to switch from a normal mode to a tilting mode or vice versa;
A sliding arm mounting part 30 formed at both ends of the tilting frame 20 and having a sliding arm mounted thereon;
A sliding arm 40 mounted on the sliding arm mounting part 30 and capable of moving in a longitudinal direction and a width direction according to the standard of the car body C while keeping the car body C fixed; And
And a locking device (50) for stopping the driving of the tilting drive unit and maintaining the vehicle body (C) in an inclined state when the switching to the tilting mode is completed,
The locking device 50 includes a locking bar 52 inserted into a locking bar insertion hole 22 formed along a side surface of the tiltable frame 20 and a locking bar 52 inserted into the locking bar insertion hole 22 ), Which is inserted into or withdrawn from the housing
Conveyor hanger with tilting type.
The method according to claim 1,
The tilting drive unit includes a timing belt 14 which is in close contact with an outer circumferential portion of the semicircular tiltable frame 20 and has both ends thereof bound to the vicinities of both ends of the tiltable frame 20;
And a timing belt drive motor (12) for driving the timing belt (14).
3. The method according to claim 1 or 2,
Wherein the semicircular tilt frame (20) is constituted by two pieces in the longitudinal direction of the vehicle body.
3. The method according to claim 1 or 2,
And a sliding arm driving rail (32) for moving the sliding arm (40) in the longitudinal direction of the vehicle body is installed on the sliding arm mounting part (30).
5. The method of claim 4,
The sliding arm (40) has a pin-like fixing portion (42) at its lower end capable of adjusting the length in the width direction of the vehicle body.
6. The method of claim 5,
The pin-shaped fixing part (42) of the sliding arm (40) is fitted in a pin-shaped fixing part insertion hole (44) formed in the lower part of the vehicle body.
The method according to claim 1,
Wherein the locking device (50) comprises a drive motor on / off switch (58) for stopping the drive of the tilting drive when switching to tilting mode is completed.
delete 8. The method of claim 7,
Wherein the drive motor on / off switch (58) is turned on / off by an enlarged diameter portion (54) formed in the locking bar (52).
The method according to claim 1,
Wherein the rollers (16) for maintaining the trajectory when the tiltable frame (20) is driven are installed on the outer peripheral portion, the inner peripheral portion and the side surface portion of the tiltable frame.

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