KR101561873B1

KR101561873B1 - Common pallet for car welding line

Info

Publication number: KR101561873B1
Application number: KR1020150049753A
Authority: KR
Inventors: 허우영
Original assignee: (주)우신시스템
Priority date: 2015-04-08
Filing date: 2015-04-08
Publication date: 2015-10-23

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a pallet that can commonly load panels of various types of vehicles in an automobile body welding line.
The present invention can be used in a common body welding line such as a new pallet in which various parts of a vehicle can be commonly loaded, for example, a side body left panel and a side body right panel This new palette provides a common palette of automotive welding lines that can automate processes and improve the efficiency of part loading and transfer as well as enable effective operation and management and increase the utilization rate of the body welding line .

Description

[0001] The present invention relates to a common pallet for a car welding line,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a common pallet for a welding line of a vehicle body, and more particularly, to a pallet for sharing panels of various types of vehicles on an automobile body welding line.

Generally, automobile makers produce a complete automobile through various assembling and welding processes of many part parts in all mass production processes.

For example, in the body assembly process, a body panel produced through a pressing process is assembled and manufactured as a body in a white body state, and a process of mounting a floor, a door, a trunk lid, a hood, a fender, .

In order to assemble the vehicle body in such a body assembly process, there are performed a welding process in which the various parts are welded by spot welding, a hemming process in which the edges are bent by bending the parts between the parts joined together through welding, And are carried out in conjunction with each other by a robot or the like moving along the transfer line while the part parts are loaded.

In the body welding line, the body assembled temporarily in the body assembly line is welded to complete the body frame. When the panels constituting the body are loosely assembled and moved to the body welding line, a plurality of welding robots Spot welding is carried out to assemble into a complete integral type.

At this time, the parts moved between the processes are loaded on the pallet in a sequential state, and then transferred into the process one after another.

Various types of pallets for loading and conveying parts are disclosed in Korean Patent Laid-Open No. 10-2004-0101832 and the like.

In recent years, the multi-vehicle part transfer system has been used to flexibly cope with changes in vehicle types during the assembly process of the vehicle body. This multi-vehicle part transfer system allows the vehicle body panel and part parts to be assembled through pallets, bogies, hanger, To the work process corresponding to the work process, and to automate the process.

In accordance with such trend of factory automation, multi-part part transfer system is continuously studied and developed for effective operation and management.

In the case of the multi-part part transfer method, the part is put on the hanger or the braking attachment and is transferred or set to the corresponding assembly line.

This is a simple way of placing or setting parts on an attachment, which means that only one kind of part can be handled. Therefore, in order to carry or set several kinds of parts, the entire pallet or hanger or the attachment must be replaced There is a disadvantage in that the operation rate of the body assembly line or the welding line is deteriorated with time.

For example, in the case of various parts such as a side body panel used in a vehicle, the shapes are different according to the type of vehicle, and the shapes of the side body left panel and the side body right panel are different even if they are the same vehicle type.

For this reason, when a part is put in the process, a dedicated pallet device is prepared for each part of the vehicle, the parts are aligned before the part is inserted, the robot is picked up by a robot or the like, As well.

In this case, there are disadvantages in terms of efficiency, such as a large number of dedicated pallets suitable for various vehicle parts, and a dedicated pallet for the side body left panel and a pallet for the right side panel of the side body even if the same vehicle type is used.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a new pallet capable of loading various parts of vehicles of different types, for example, a left side panel of a side body, The new pallet that can be used commonly in the body welding line can be used to improve the efficiency of parts loading and transfer. It also enables efficient operation and management as well as automation of the process. And to provide a common pallet of a bodywork welding line which can be increased.

In order to achieve the above object, a common pallet for a welding line of a vehicle body provided in the present invention has the following features.

The common pallet includes a pallet frame having a crisscross structure with wheels for movement and a plurality of panel holders installed on a hanger object which crosses the upper end of the pallet frame in the frame width direction and can be turned back and forth .

Accordingly, the common pallet is characterized in that each panel can be loaded while changing the posture of the panel rest depending on the type of the vehicle.

Here, the panel holder of the common pallet may include a cradle horizontal bar supported by a hanger pin of the pallet frame through a hinge pin so as to be pivotable forward and backward, and a cradle pad having a plurality of grooves arranged in parallel to the horizontal bar, have.

The panel stand may further include a front stopper and a rear stopper which are installed at the front and rear of the hanger for restricting the angle of wrapping of the horizontal bar.

At this time, the front stopper and the rear stopper of the panel holder can be bent at a predetermined angle, and the front and rear stoppers are bent at different angles.

In addition, it is preferable that the panel holder is provided with two panels arranged at a certain distance from each other in the longitudinal direction of the frame, so that the panel holder can be stacked in such a manner that two front and rear portions of the panel are laid over each other.

Further, as a preferred embodiment, the pallet frame may include a positioning bar which is disposed across the frame width direction as a means for alignment at the time of panel mounting, and is disposed back and forth in the frame.

The common pallet of the welding line of the vehicle according to the present invention has a structure in which various panel parts such as a side body left panel and a side body right panel can be commonly used by applying a pallet for a posture change , It is possible not only to contribute to the automation of the process, but also to the efficient operation and management, and to increase the utilization rate of the welding line of the vehicle body.

1A and 1B are perspective views showing a common pallet of a body welding line according to an embodiment of the present invention;
FIG. 2A and FIG. 2B are front views showing an operating state of the panel holder in a common pallet of a body welding line according to an embodiment of the present invention;
3A and 3B are perspective views showing a state of use of a common pallet of a body welding line according to an embodiment of the present invention;

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

FIGS. 1A and 1B are perspective views showing a common pallet of a body welding line according to an embodiment of the present invention. FIGS. 2A and 2B are views showing the operation of a panel mount in a common pallet of a body welding line according to an embodiment of the present invention Fig.

As shown in FIGS. 1A and 1B and FIGS. 2A and 2B, the common pallet has a structure in which each vehicle model and various panels can be shared, and it is not necessary to newly produce a pallet Can be effectively used in automobile body welding lines.

To this end, the common pallet includes a pallet frame 11 corresponding to a pallet body, and the pallet frame 11 is formed as a rectangular frame structure.

The pallet frame 11 is provided at the lower end thereof with a wheel 10 for moving the pallet frame 11 so that the pallet frame 11 can be transported between the processes while the pallet frame 11 is moved.

The pallet frame 11 is formed in such a shape that one lateral side in the frame width direction is blown.

Therefore, it is possible to enter the panel by using the open side of the pallet frame 11 and to load the panel inside the frame.

The pallet frame 11 is provided with a positioning bar 20 as a means for aligning the front end and the rear end of each panel in a row in a row when panels are mounted.

The positioning bar 20 is fixed at one end to the frame member located at one side of the inner bottom of the pallet frame 11, that is, at the closed side of the frame, and horizontally extending along the lateral direction of the frame Respectively.

The position alignment bars 20 are disposed at the front and back sides of the frame, respectively. When the panel 20 is mounted on the frame, the positioning bars 20 contact the front and rear ends of the panel.

That is, since the panel is positioned inwardly between the positioning bars 20 installed on the front and rear sides of the pallet frame 11 when the pallets are stacked on the pallet frame 11, As shown in FIG.

Particularly, the common pallet may include a plurality of panel holders 13 as means for commonly mounting panels of different types of vehicles or panels of the same vehicle, for example, a side body left panel and a side body right panel, .

The panel holder 13 is structured such that the panel can be stowed and can be changed in its posture while being turned back and forth. By selectively changing the posture, the panel holder 13 is attached to a different panel such as a side body left panel and a side body right panel Can be commonly used.

To this end, the panel holder 13 includes a holder horizontal bar 15 which can be turned back and forth using a rotatable structure, and a holder pad 17 which holds the panel substantially.

The cage horizontal bar 15 is a substantially "C" shaped bar having a cross bar and a vertical bar on both sides thereof, and is hinged to the hanger stand 12 on the pallet frame 11 through both vertical bars.

In other words, the pallet frame 11 is provided with a hanger band 12 crossing the transverse width direction of the frame in the inner side of the frame upper end portion. One end of the hanger band 12 thus installed is provided on the side of the frame, Is fixed on the hanger-to-plate (21).

The vertical bars of the horizontal bar 15 are fastened and supported by the hinge pins 14 on the hanger table 12 so that the horizontal bar 15 of the bar horizontally moves the hinge pins 14 It can be rotated and rotated back and forth so that the posture can be laid down or erected.

The cradle pads 17 are installed in a structure in which the cradle pads 17 are closely arranged on one surface of the horizontal bar 15 and fixed by a screw or bolt fastening structure.

A plurality of grooves 16 are formed in the pad 17 at regular intervals along the length of the pad. The grooves 16 can be mounted in the grooves 16.

Particularly, the front stopper 18 and the rear stopper 19 are provided as means for restricting the angle of wrapping of the horizontal bar 15 when the posture of the panel rest 13 is changed.

The front stopper 18 and the rear stopper 19 serve to support the holder horizontal bar 16 from below and prevent the holder horizontal bar 16 from being further bent downward.

The front stopper 18 is fixed to the front side of the hanger stand 12 and regulates the angle of swinging the front side of the hanger horizontal bar 16. The rear stopper 19 is fixed to the front of the hanger stand 12, And is fixed to the rear side to regulate the angle of swinging to the rear side of the horizontal bar (16).

The front stopper 18 and the rear stopper 19 are formed of a plate member bent at a predetermined angle and the front stopper 18 is bent toward the front side while a part of the lower end of the front stopper 18 is supported on the hanger side And the rear stopper 19 are also bent toward the rear while a part of the lower end is supported on the hanger side.

The front stopper 18 and the rear stopper 19 have different angle of breaks and the front stopper 18 is relatively more bent than the rear stopper 19 with respect to the vertical line.

For example, the front stopper 18 is bent in a nearly horizontal posture relative to a vertical line, and the rear stopper 19 is bent in a rearward inclined angle of about 45 degrees with respect to a vertical line.

Accordingly, as shown in FIG. 4, when the cage horizontal bar 16 is tilted forward and is restricted by the front stopper 18, the cage vertical bar 16 can be laid in a substantially horizontal posture, Is regulated by the rear stopper 19, it can be set up in an obliquely inclined posture.

Here, in the case of the front stopper 18 and the rear stopper 19 having different angles of inclination, the rear stopper 19 may take a relatively more bent position relative to the front stopper 18 than the front stopper 18 .

For example, the panel holder 13 may be provided with two panels arranged at a predetermined distance in the longitudinal direction of the frame so that the panel holder 13 can be stacked in a manner of covering two front and rear portions of the panel.

In the case of the front stopper 18 and the rear stopper 19 in the one panel stand 13 disposed in the front of the two panel holders 13 thus provided, the front stopper 18 is provided on the rear stopper 19 It is possible to take a relatively more bent position.

In the case of the front stopper 18 and the rear stopper 19 in the other one of the panel mounts 13 disposed on the rear side, the rear stopper 19 is provided with a relatively more bent posture than the front stopper 18 You can take it.

Accordingly, the state of use of the common pallet of the body welding line constructed as described above will be described below.

FIGS. 3A and 3B are perspective views illustrating a use state of a common pallet of a body welding line according to an embodiment of the present invention.

3A and 3B, when the left side panel of the side body is to be loaded, the horizontal bar 15 on the front panel stand 13 and the horizontal bar 15 on the rear panel stand 13, The bar 15 is turned all the way forward so that the front bar horizontal bar 15 is in a lying down state and the rear bar horizontal bar 15 is made in an inclined standing state and then a robot or a hanger or a horizontal bar 15 The left side panel 100 is mounted on the right side panel.

The side body left panel 100 thus mounted is placed on the front side horizontal bar 15 on which the inclined front pillars are laid, and the rear side horizontal bar 15 on the rear side, So that the side body left panel 100 can be stably stacked in a well-aligned state.

Next, the state in which the right side panel of the side body is loaded is as follows. The holder horizontal bar 15 on the front panel holder 13 and the holder horizontal bar 15 on the rear panel holder 13 are all turned backward, The horizontal bar 15 is slanted and the horizontal bars 15 are laid down. The horizontal bars 15 of the front and rear sides are fixed to the right and left side panels 200 by a robot, a hanger, Mount.

The side body right panel 200 thus mounted is placed on the horizontal bar 15 on the rear side where the inclined front pillar portion is laid, and the front side bar 15 on the front side So that the side body right panel 200 can be stably stacked in a well-aligned state.

Next, a state in which the left side panel of the side body of a different vehicle type is loaded will be described. In the state in which the left side panel of the side body is loaded, the front side horizontal bar 15 on the front panel stand 13 and the front stand bar 15 on the rear panel stand 13 So that the front bar horizontal bar 15 is laid flat and the rear bar horizontal bar 15 is set in an inclined standing state. Then, the horizontal bars 15 of the front and rear platforms are hand- Mount the left panel.

The left side panel of the side bodies of the other vehicles to be mounted in this manner is placed on the front side horizontal bar 15 on which the inclined front pillar portion is laid, and the rear side horizontal bar 15 on the rear side, So that the left side panels of the side bodies of other cars can be stably stacked in a well-aligned state.

As described above, according to the present invention, when a panel is mounted on an automobile body welding line, a common pallet can be commonly mounted to various different types of panels such as a side body left panel and a side body left panel, The efficiency of the work related to the present invention can be increased.

10: Wheel
11: Pallet frame
12: Hanger band
13: Panel holder
14: Hinge pin
15: Holder horizontal bar
16:
17: Cradle pad
18: Front stopper
19: Rear stopper
20: Position alignment bar
21: Hanger-to-plate

Claims

A pallet frame 11 having a wheel 10 for moving the pallet frame 11 in the form of a rectangular frame and a hanger frame 12 provided on the hanger frame 12 crossing the upper end of the pallet frame 11 in the frame width direction, A common pallet for a vehicle body welding line including a plurality of panel mounts (13) capable of being switched, and capable of loading different panels according to respective positions of the panel mounts,
The panel holder 13 includes a cradle horizontal bar 15 supported by a hanger pin 12 of a pallet frame 11 through a hinge pin 14 and rotatable back and forth, And a cradle pad (17) having a plurality of grooves (16) for panel seating.

delete

The method according to claim 1,
The panel holder 13 is provided on the hanger stand 12 as a means for regulating the swing angle of the holder horizontal bar 15 in the posture change mode and is provided with a front stopper 18 for supporting the holder horizontal bar 15 from below, And a rear stopper (19). &Lt; Desc / Clms Page number 13 >

The method of claim 3,
Wherein the front stopper (18) and the rear stopper (19) of the panel holder (13) are bent at different angles and bent at a predetermined angle.

The method according to claim 1,
Wherein the panel holder (13) is provided with two pieces arranged at a predetermined distance from each other in the longitudinal direction of the frame, so that the panel holder (13) can be stacked in such a manner that two front and rear parts of the panel are laid over each other.

The method according to claim 1,
Characterized in that the pallet frame (11) comprises a positioning bar (20) arranged as a means for alignment during panel mounting and arranged back and forth in the frame, across the frame width direction.