JPH0448567B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a parts conveying device employed, for example, in an automobile assembly line, when moving a door that has been suspended and conveyed to the floor.

BACKGROUND OF THE INVENTION On an automobile assembly line, doors are attached to or removed from the body depending on the process of performing various operations. In the past, for example, Utility Application No. 60-168939 was used to perform such work.
number is provided. In this conventional example, a hanger that can freely support the door is attached to a trolley device so as to be able to swing left and right, the trolley device is moved to the dividing rail part of the lifting device, and then the lifting frame is lowered to install it on the floor side. The door is being moved to the detachment device. The hanger has a lower edge holder that supports the lower edge of the door and a front edge holder that supports the front edge of the door, and when the door supported by these holders is tilted outward, the outer surface is covered with an outer pad. I accept it.

Problems to be Solved by the Invention According to the conventional type described above, the door is supported on the hanger side using its own weight, so it cannot be lifted or lowered during suspended transportation via a trolley device or when lifted or lowered via a lifting device. If the hanger swings from side to side during transportation, the door may come off from the hanger and fall.

The object of the present invention is that suspended conveyance and elevating conveyance can be carried out by clamping parts to hangers.
Another object of the present invention is to provide a component conveying device that can release the clamp immediately before unloading the plate-shaped component from the hanger and allow the plate-shaped component to be supported by its own weight on the hanger side.

Means for Solving the Problems In order to solve the above-mentioned problems, the parts conveying device of the present invention includes a hanger attached to a trolley device, a lower edge holder for supporting the lower edge of the plate-like part, and a hanger for supporting the lower edge of the plate-like part. A receiving member for receiving the outer surface and a clamping device for holding the side edge of the plate-shaped component are provided, and this clamping device includes:
It consists of a claw that can swing freely to engage and disengage from the side of the plate-shaped part, and a lever that is linked to this claw, and supports the trolley device and moves up and down to transfer the plate-shaped part between the upper and lower parts. A lifting device is provided for performing the above-mentioned lifting and lowering, and a lifting frame of the lifting device is provided with a release device that can freely act on the lever of the clamp device.

Effects According to the configuration of the present invention, the plate-shaped component is supported by its own weight on the hanger side by having the lower edge supporter support the lower edge and the receiving material receiving the outer surface.
By engaging the claws by operating the lever, and holding the side edges with the clamping device, it is clamped (integrated) with the hanger, and in this state it can be transported under suspension or transported up and down. Immediately before unloading the plate-shaped part from the hanger, the release device is actuated on the lever to disengage the claw and automatically release the clamping device, thereby allowing the plate-shaped part to be supported by its own weight on the hanger side. Unloading of plate-shaped parts can be carried out smoothly using the attachment/detachment device.

Embodiment An embodiment of the present invention will be described below based on the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a suspended conveyance device, which includes a trolley guide rail 2, a trolley drive rail 3 installed above the trolley guide rail 2, and a fixed path 11 guided by the trolley guide rail 2. It is composed of a trolley device 4 that can run freely on the trolley device 4, a hanger 5 attached to the trolley device 4, and a trolley drive device (such as a chain conveyor) 6 guided by the trolley drive device rail 3. The trolley device 4
is a connection between the front trolley 7, the free trolley 8, the rear trolley 9, the connecting rod 10 that connects the front trolley 7 and the free trolley 8, and the trunnion pins connected from the free trolley 8 and the rear trolley 9. It consists of a part of the hanger 5 which also serves as a frame. The front trolley 7 has a driving protrusion 12 from the trolley driving device 6.
It has a passive dog 13 that can be engaged with and detached from the drive dog 13 so as to be able to move up and down, and an operating lever 15 that is attached in the middle thereof via a horizontal shaft 14 so as to be able to swing up and down extends forward. The hanger 5 is a longitudinal rod 1
6, a vertical rod 17 connected downward from the front and back two locations of this longitudinal rod 16, a connecting rod 18 disposed between the intermediate portions of these vertical rods 17, and free ends of both vertical rods 17. a lower edge receiver 19 attached to the
Clamp device 2 attached to the front vertical rod 17
0 and a pair of outer pads 30 provided on the connecting rod 18 to form a flat shape. As shown in FIG. 1 and FIG.
The connection plate 22 is rotatably attached to the
The longitudinal axis 24 is attached to the trunnion pin 23.
It is rotatably connected via the. This results in
The hanger 5 also serves as a connecting frame for both the trolleys 8 and 9, and is capable of swinging left and right around the axes of both the longitudinal axes 21 and 24. A hanger guide roller 25 is freely rotatably attached to the back side of the longitudinal lever 16, and a swinging guide roller 26 is attached to the lower end of the vertical lever 17. The hanger 5 is slightly deformed depending on whether it is used for the front door 27 or the rear door 28, which is an example of a plate-shaped component, but the basic structure is the same. As shown in FIGS. 1 and 6, the clamp device 20 acts on a hinge 39 for connecting the bodies provided at the side ends of the doors 27 and 28, and is attached to the middle part of the front vertical rod 17. a bracket 31, a first link 32 and a second link 33 swingably attached to the bracket 31 via vertical pins, and these links 32, 3.
a lever 34 connected to the lever 34 via a vertical pin so as to be able to swing relative to each other, and a claw 3 attached to the free end of the first link 32 and detachable from the side of the hinge 39.
5, a receiving member 36 made of sponge material or the like to receive the outer surfaces of the doors 27 and 28, and a magnet 37 attached to the second link 33, etc., and the toggle link mechanism is formed by both links 32 and 33 and the lever 34. Configure. As shown in FIG. 2, the constant path 11 of the suspended conveyance device 1 is arranged in pairs on the left and right well above the floor surface 80, and is divided into one for the right door group and one for the left door group.

As shown in FIGS. 1 and 2, the trolley guide rail 2 becomes a divided rail portion 2A at a predetermined location on the fixed path 11, and this divided rail portion 2A
is supported on the lifting device 40 side. That is, the elevating device 40 includes a pair of supports 41 erected from the floor surface 80.
, an elevating frame 44 that is guided via a plurality of rollers 43 to a vertical guide rail 42 attached to the side surface of these columns 41, a pedestal 45 installed between the upper ends of the pedestal 41, and a frame 45 mounted on this pedestal 45. placed,
It also includes a winch-type lifting drive unit 46 that is interlocked with the lifting frame 44, and a dividing rail portion 2A is attached via a bracket 47 between both lifting frames 44. The trolley driving device rail 3 and the like cannot be disposed on the lifting frame 44 side. Therefore, a trolley delivery device 48 is disposed above the dividing rail portion 2A. This trolley sending device 48 includes a guide rail 49 attached to a bracket 47 above the dividing rail portion 2A, a movable base 51 supported and guided by this guide rail 49 via wheels 50, and a reciprocating system that moves this movable base 51. a cylinder device 52 for moving;
The passive dog 1 is attached to the movable base 51 and
Anti-back type pusher 5 that can be freely connected to and removed from 3.
It consists of 3. The bracket 47 includes:
A guide rail device 56 that prevents the hanger 5 from shaking when the hanger guide roller 25 is fitted thereto.
is installed. This guide rail device 56 is
As shown in FIGS. 4 and 5, a bracket 58 is attached to the lifting frame 44 via a mounting plate 57,
A fixed rail part 59 is attached to the front side of this bracket 58.
is installed. Two rods 62 are provided on the back side of the bracket 58 via a cylindrical guide 60 and a bush 61, respectively, so as to be movable up and down. A support plate 65 is attached between the lower ends of both rods 62 via a cylinder 63, a nut 64, etc. A movable rail portion 66 is provided on this support plate 65, and this movable rail portion 66 is connected to the fixed rail portion 59. The guide width in the vertical direction is 67.
can be changed freely. Further, a spring 70, which is an example of an elastic body, is provided between the lower surface of the holder 69 disposed on the upper part of the rod 62 via a nut 68 and the upper surface of the cylindrical guide 60, so that the movable rail portion 66 approaches. It is biased to move. A cushion 71 is attached to the upper end of the rod 62, and a stopper cylinder 72 is provided on the pedestal 45 above the cushion 71. This stopper cylinder 72 faces downward, and a stopper 74 is attached to the lower end of the piston rod 73 so as to be able to come into contact with the cushion 71. As shown in FIGS. 1 to 3, the lifting frame 44 has a clamping device 2.
0 release device 81 is provided. This release device 8
1 is a holding frame 83 attached to the elevating frame 44 via a bracket 82, a push plate 85 provided on the holding frame 83 so as to be movable laterally via a guide rod 84, etc.; Holding frame 8
3 and a cylinder device 86 attached to the cylinder.

As shown in FIG. 2, a conveyance device 90 is disposed on the floor 80 passing through the center between both lifting devices 40. As shown in FIG. This conveyance device 90 is a floor conveyor type, and supports and conveys a body (an example of a main body to be assembled) 91 on a fixed path. Doors 27,
An attachment/detachment device 92 is provided for attaching and detaching 28. This attachment/detachment device 92 includes a trolley 93 which can freely travel back and forth along the fixed route and can travel in synchronization with the transport device 90 when traveling, and a movable trolley 93 that is installed on the trolley 93 and can move toward and away from the fixed route. stand 94,
It is composed of a lower end support 95 provided on the side of the movable table 94, an external support (vacuum device) 936, and the like.

The operation of the above embodiment will be explained below.

Normally, the trolley device 4 travels by engaging the drive protrusion 12 with the passive dog 13.
At this time, the front end of the operating lever 15 is moving downward. The lower edges of the front door 27 and the rear door 28 are received by the lower edge receiver 19, the front edges are clamped by the clamp device 20, and the outer surfaces are supported by the outer pad 30, so that transportation is prevented from playing. It is done without any sticking or falling off. At this time, in the clamping device 20, the lever 34 and the second link 33 are positioned linearly in the front-rear direction, as shown by solid lines in FIG. 6, and the claw 35 thereof is engaged with the hinge 39. Also, the magnet 37 is attracted to the bracket 31 of the vertical rod 17, and the door 27, 2
This prevents the rattling of the 8. The trolley device 4 holding the front door 27 and the rear door 28 via the hanger 5 is transferred to the separate rail section 2A of the lifting device 40 as shown in FIGS. 1 and 2, and
Then, it is stopped and positioned at a predetermined position by a stopper device or the like. At this time, the hanger guide roller 25 is fitted and guided by the guide rail device 56, thereby preventing the hanger 5 from swinging around the longitudinal axis. That is, when transferring the trolley device 4, the elevating frame 44 is at the top dead center, and at this time the fourth
As shown in the figure, the stopper 74 is lowered by the extension of the stopper cylinder 72, and the rod 62 is lowered against the spring 70 via the cushion 71. 66 downward and away from the guide width 67.
is widening. Therefore, the hanger guide roller 2
5 is fitted securely and with ease. With the two trolley devices 4 stopped at predetermined positions,
First, the stopper cylinder 72 is contracted and the stopper 74 is raised. Then, the movable rail portion 66 rises via the rod 62 and the support plate 65 due to the elastic force of the spring 70, moves closer to the fixed rail portion 59, narrows the guide width 67, and both rail portions 59, 66 grips the hanger guide roll 25 from above and below, and then moves the hanger 5 to the lifting frame 44.
Integrate to the side. Next, the lifting device 40 is operated to lower the lifting frame 44. As a result, both hangers 5 are lowered via the divided rail portion 2A, but at this time, in the attachment/detachment device 92, the cart 93 is stopped at a predetermined position below the elevation path. And trolley 93
Both movable bases 94 are in retracted positions spaced apart from the fixed path. The release device 81 is activated before the lifting frame 44 approaches the bottom dead center. That is, the cylinder device 86 is extended, the pushing plate 85 moving forward is brought into contact with the lever 34, and the lever 34 is swung outward as shown by the imaginary line in FIG. Then, the pawl 35 also swings outward via the toggle link mechanism,
It will come off from the hinge 39. After this, as the hanger 5 is lowered with respect to the cart 93 as described above, the lower edges of the doors 27 and 28 that were received by the lower edge receiver 19 are lowered as shown in the imaginary line in FIG. received by the edge support 95 and the door 27;
The outer surface of 28 is supported by an outer surface support 96 . Next, both doors 27 and 28 are tilted with respect to a fixed path, and the truck 9 is moved while maintaining the tilt angle.
Keep 3 on standby. When the body 91, which has been transported along a certain path by the transport device 90, reaches a predetermined position, the travel drive device is activated, and the carriage 93, that is, the doors 27, 2
8 is moved synchronously. During this synchronous movement, the movable base 94 is moved close to a certain path, and the doors 27, 2
8 is moved so that its extension line corresponds to the mounting opening of the body 91. Then, by manual operation of the worker, the hinges 39 (engaging portions) of the doors 27, 28
is engaged with the engaged portion on the body 91 side, and the holding is released. Next, the movable platform 94 is moved in and out, and after each part is swung back to its original position, the carriage 9
3 can be returned to its original state by moving it back in the opposite direction. Note that the empty hanger 5 is lifted up when it is no longer involved due to the synchronized movement of the cart 93, and then sent to the next process. At this time, when the elevating frame 44 reaches the top dead center, the guide width 67 is widened as shown in FIG. 4, so that the movement to the next process is performed smoothly.

In the above description, the function of attaching the doors 27 and 28 to the body 91 has been explained, but this also makes it possible to remove the doors 27 and 28 by the reverse operation.

Effects of the Invention According to the present invention having the above configuration, by having the lower edge receiver support the lower edge and the receiving member receiving the outer surface, the plate-shaped component can be supported by its own weight on the hanger side, and the plate-shaped component can be supported by its own weight on the hanger side. The parts can be clamped (integrated) on the hanger side by engaging the claws by operating the lever and holding the side edges with the clamping device. In this state, suspended transportation or vertical transportation is not possible. For example, even if the hanger swings from side to side, this can be done without causing the plate-shaped part to fall. Immediately before unloading the plate-shaped part from the hanger, the release device acts on the lever to release the claw, thereby automatically releasing the clamping device and allowing the plate-shaped part to be supported by its own weight on the hanger side. Therefore, unloading of plate-like parts from the hanger can be carried out smoothly and reliably without any hindrance.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of the lifting device, Fig. 2 is a front view of the same, Fig. 3 is a front view of the main parts, and Fig. 4 is a guide rail device. 5 is a side view of the same, and FIG. 6 is a plan view of the clamp portion. 1... Hanging conveyance device, 2A... Dividing rail section, 4
...Trolley device, 5...Hanger, 19...Lower edge receiver,
20... Clamp device, 25... Hanger guide roller,
27...Front door (parts), 28...Rear door (parts), 3
0... Outer pad, 32... First link, 33...
2nd link, 34... Lever, 35... Claw, 38... Lever, 39... Hinge, 40... Elevating device, 41... Support column, 44... Elevating frame, 46... Elevating drive unit, 48... Trolley sending device, 56... Guide rail device, 59
...Fixed rail part, 66... Movable rail part, 70... Spring (elastic body), 81... Release device, 85... Push plate,
86... Cylinder device, 90... Conveyance device, 91... Body, 92... Attachment/detaching device, 95... Lower end support, 96
...external support.

Claims (1)

[Claims] 1. A hanger attached to the trolley device is provided with a lower edge receiver for supporting the lower edge of the plate-shaped component, a receiving member for receiving the outer surface of the plate-shaped component, and a clamp device for holding the side edge of the plate-shaped component, This clamping device includes a swingable claw that engages and disengages from the side of the plate-shaped component;
A lifting device is provided, which is composed of a lever interlocked with this pawl and moves up and down while supporting the trolley device to transfer plate-shaped parts between the upper and lower sides. A parts conveyance device characterized in that a lever is provided with a release device that can be freely operated.