JP2573699B2 - Transport equipment using self-propelled bodies - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport facility using a self-propelled body employed for supporting and transporting a body or the like, for example, in an automobile assembly line.

2. Description of the Related Art Conventionally, there has been provided a transfer facility as disclosed in Japanese Patent Application Laid-Open No. 183010/1986 and FIG. In this conventional type, a self-propelled body 103 that can travel on a fixed path 102 via a plurality of wheels 101 mounted on a rail 100 is provided, and a driving device 104 linked to one wheel 101 is provided, Further, a hanger device 106 for supporting a transferred object having a pair of left and right hanger frames 105 that can swing right and left below the self-propelled body 103.
Is provided. The transported object 107 is transported by causing the self-propelled body 103 to travel on the fixed route 102.

The transferred object 107 is a transfer device provided in the fixed path 102.
It is unloaded from the hanger device 106 by 108 and is placed on the pallet 111 supplied from the pallet supply device 109 to the start end of the feeder device 110. After that, the transferred object 107
Is conveyed by a floor conveyor 112 via a pallet 111.

Problems to be Solved by the Invention The pallet 111 has an ID card on its side, and after the object 107 is placed, various data of the object 107 is written on the ID card. This writing is performed at the location of the transfer device 108.At this location, a time for loading the transported object 107 on the pallet 111 and a time for transferring the transported object 107 from the feeder device 110 to the floor conveyor 112 are required. Since the writing time to the ID card is added to the above, a large work time is required as a whole, and thus the flow of the entire line becomes slow.

SUMMARY OF THE INVENTION An object of the present invention is to provide a self-propelled transport equipment capable of performing various operations performed after a transported object is placed on a pallet, with a good transfer position.

Means for Solving the Problems In order to achieve the above object, the transport equipment using a self-propelled body in the present invention is provided with a self-propelled body that is supported and guided on a rail on the ceiling side and can run on a fixed path, At the lower part of the self-propelled body, a support device for the transported object is mounted to be openable and closable in the left-right direction, and a pallet supply device and a lifting device for lifting the transported object on the support device are provided in a fixed path. A transfer device is provided below the position where the device is disposed to transfer the transported object together with the pallet to the floor-side transfer device.

According to the configuration of the present invention, the transported object on the supporting device can be lifted by stopping the self-propelled body at the lifting device and operating the lifting device. By operating the pallet supply device after opening the empty supporting device in the left-right direction, the pallet can be positioned immediately below the lifted conveyed object. The pallet can be supported by closing the support device in the left-right direction. Next, by operating the lifting device and the pallet supply device in the reverse manner to the above, the support device can support the pallet, and the transported object can be placed on the pallet. As a result, the self-propelled body that supports the transported object via the pallet travels poorly, but at that time, the path to the transfer device is used to stop and store the self-propelled body. By doing so, various operations can be performed, such as writing data of a conveyed object on the ID card of the pallet. The self-propelled body is stopped by the transfer device, and the pallet on which the object is placed is transferred to the floor-side transfer device.

Embodiment An embodiment of the present invention will be described below with reference to FIGS.

4 and 5, reference numeral 1 denotes a rail formed in an I-shaped cross section, which is supported on a ceiling beam 2 or the like via a mounting bracket 3 and has a side opposite to a side to which the mounting bracket 3 is coupled. The signal and power supply device 4 is provided over the entire length. The self-propelled body 5 supported and guided by the rail 1 and capable of traveling on a fixed path 15 has a plurality of (four in the embodiment) trolley bodies 6 in the traveling direction, and a bearing 7 on the upper part of these trolley bodies 6. Left and right shafts 8 mounted on the rails 1, a ring body 9 mounted on these shafts 8 and mountable on the upper surface of the rail 1, and mounted on each trolley body 6 and on both upper and lower ends of the rail 1. Rollover prevention roller 10 that can be freely contacted
A connecting member 12 in the front-rear direction for connecting the trolley bodies 6 with each other via a connecting pin 11 in the up-down direction;
A traveling drive unit 13 with a brake mounted on one of the group of trolley bodies 6 and moving on its axis 8;
It is composed of a current collector 14 that can slide on the supply device 4. A hanger device 16 as an example of a support device is attached to the connecting member 12 located at the center. This hanger device 16
The arm member 18 includes a pair of arm members 18 attached to both sides of the connecting member 12 via a front-rear direction shaft 17 so as to be able to swing left and right, and a pedestal 19 attached to lower ends of these arm members 18. The longitudinal shaft 17 is a bearing member 20 provided on the connecting member 12.
And is rotatable around the longitudinal axis 21. The arm member 18 has a pair of front and rear bent brackets 22 each having a lateral end connected to the front-rear direction shaft 17.
And a vertical rod 23 vertically extending from the other end of the bent bracket 22 and a front and rear rod connecting the vertical rods 23 facing front and rear.
The receiving stand 19 is continuously provided inward from the lower end of each vertical rod 23. A positioning guide roller 26 is attached to the center of the upper surface of the connecting member 12 via a bracket 25, and a passive member 27 for opening and closing is provided on the bent bracket 22 in the front-rear direction. 28 is a body of an automobile, which is an example of an article to be conveyed. Is provided.

As shown in FIG. 1, FIG. 2, FIG. 6, and FIG. 7, a pallet supply device 40
A lifting device 60 for lifting the body 28 on the hanger device 16 is provided.

The pallet supply device 40 includes a machine frame 41 located directly below the fixed path 15, a base frame 42 provided on the machine frame 41, and an elevating / lowering unit arranged above the base frame 42 via a pantograph mechanism 43. A frame device 44 and a cylinder device 45 for elevating and lowering the frame 44 and the elevating frame 44 and the base frame 42, and a bracket 47 interposed between the base frame 42 and a guide rail 46 for guiding a guided rail 46 suspended from the elevating frame 44. And a receiving roller 50 mounted on the elevating frame 44 via a position adjusting device 49 and the like. The conveying direction of the receiving conveyor 50 is orthogonal to the fixed path 15, and the receiving conveyor 50 is connected to the supply conveyor 51 at the lower limit.

The pallet 35 has a flat roller 36 and a grooved roller 37 at four corners, and is provided with a support member 38 that can receive the seal portion 29 and a positioning pin 39 that can be engaged with the flange 30 with the hole. .

The lifting device 60 includes a pair of columns 61 erected on the side of the fixed path 15 on the side opposite to the supply conveyor 51.
And a frame 62 provided between the upper ends of these columns 61, and both columns 61
The lifting frame 64 guided by the vertical guide rail 63 provided on the upper side, the lifting tool 65 provided at the middle part and the front end on the upper surface of the lifting frame 64, and a chain using the two lifting frames 64 in synchronization A lifting device 67 having a synchronous shaft 66 and the like, a clamp device 69 for the gantry 62, and the arm member 18 attached to the support frame 68 from the ceiling side opposite to the fixed path 15 from the ceiling side, A pair of opening devices provided on the support frame 68 to open the arm member 18
Consists of 70. The lifting frame 64 is a receiving conveyor.
The lifting tool 65 is moved up and down on both sides of the body 50, so that the lifting tool 65 abuts on the lower front part and the lower rear part of the body 28. The clamp device 69 includes a clamp arm 71, a cylinder device 72 for operating the clamp arm 71, and the like. The opening device 70 is attached to a bracket 73 from a support frame 68 and extends along a fixed path 15, an operation lever 75 swingably attached to the shaft 74, and swings the operation lever 75. A cylinder device 76 is provided between the bracket 73 and the operating member 75. The operating lever 75 is arranged to act on the passive member 27 from below.

As shown in FIGS. 5 to 7, a transfer device 80 that transfers the body 28 together with the pallet 35 to the floor-side transfer device 95 at a position that is a predetermined distance below the position where the lifting device 60 is disposed. Is provided. That is, the transfer device 80 includes a pair of columns 81 erected on both sides of the fixed path 15 and these columns.
A frame 82 provided between the upper ends of 81, a lifting frame 84 guided by vertical guide rails 83 provided on both columns 81, and a horizontal rail 85 provided below these lifting frames 84
A movable table 86 supported and guided by the movable table 86, a support member 87 continuously provided forward from the front end of the movable table 86, and a cylinder device 88 provided between an elevating frame 84 to move the movable table 86 back and forth. ,
An elevating drive device 89 using a chain for raising and lowering the two elevating frames 84 in synchronization with each other, and a gantry 82 for opening the arm member 18.
And a pair of opening / closing devices 90 provided at the same position. This opening device 90
A shaft 92 attached to a bracket 91 from the gantry 82 and along the fixed path 15, an operation lever 93 swingably mounted on the shaft 92, and a bracket 91 for swinging the operation lever 93. The operation lever 93 is disposed so as to act on the passive member 27 from below.

The floor-side transfer device 95 is, for example, a slat conveyor, and a feeder device for receiving a pallet (body) 28 from the transfer device 80 and smoothly passing the pallet (body) 28 to the floor-side transfer device 95 at a start end thereof. 96 are provided. A guide rail (not shown) for supporting and guiding the flat roller 36 and the grooved roller 37 is provided on the side of the floor-side transfer device 95 and the feeder device 96.

As shown in FIGS. 6 and 7, a plurality of (two in this embodiment) self-propelled bodies 5 are provided between the lifting device 60 and the transfer device 80.
, And a work space 97 that can use a floor surface is formed below.

 Next, the transfer operation in the above embodiment will be described.

As shown in FIGS. 4 and 5, the self-propelled body 5 supporting the body 28 and the like by the hanger device 16 includes a traveling drive device 13.
Is operated to forcibly rotate the wheel body 9, so that the vehicle travels on the fixed path 15 in a state where the wheel body 9 is supported on the rail 1 by the plurality of wheel bodies 9 and the lateral vibration is prevented by the plural lateral vibration preventing rollers 10. I do. The power supply to the self-propelled body 5 is performed by the current collector 14 slidingly contacting the signal / power supply device 4. The self-propelled body 5 having traveled in this manner is stopped at the position of the lifting device 60 as shown in FIGS. At this time, in the pallet supplying device 40, the receiving conveyor 50 is connected to the supplying conveyor 51 as shown by the imaginary line (a) in FIG.
Pallets 35 are supplied to a receiving conveyor 50.

In such a state, first, the lifting and lowering device of the lifting device 60
Activate 67 to guide the guide rail 63 to raise the elevating frame 64. Then, the lifting tool 65 comes into contact with the bottom of the body 28 from below, and thereby lifts the body 28 supported by the cradle 19 of the hanger device 16. Then the opening device
Activate 70. That is, the cylinder device 76 is extended from the state shown by the solid line in FIG. 1, and the operation lever 75 is moved upward around the shaft 74. As a result, the operation lever 75 acts on the passive member 27 from below, and swings the empty arm member 18 outward as shown by the imaginary line in FIG. Lifting gear before and after this
65 is operated in the left and right direction to correct the position of the body 28 in the width direction. Next, by the first-stage extension of the cylinder device 45 in the pallet supply device 40, the receiving conveyor 50 is raised to the intermediate position as shown by the imaginary line (b) in FIG. At this time, the position of the pallet 35 is corrected in the front-rear direction (vehicle length direction) by operating the position adjusting device 49 based on the detection of the leading end of the body 28. Next, the pallet feeder 40
Is extended to the second stage, and the pallet 35 is positioned immediately below the body 28 as shown by the solid line in FIG. Then, the opening device 70 is operated in the opposite direction to that described above, and the arm member 18 is swung inward to position the receiving base 19 below the pallet 35. Next, the clamp device 69 is operated, and the vertical arm 23 is clamped by the clamp arm 71 to perform steadying. Next, the cylinder device 45 of the pallet supply device 40
And the receiving conveyor 50 is lowered together with the lifting frame 44, and the lifting frame 64 of the lifting device 60 is lowered. As a result, the pallet 35 which has been lowered together with the receiving conveyor 50 is transferred to the cradle 19 of the hanger device 16, and the sealing portion 29 of the body 28 which is lowered is supported by the supporting member 38.
At the same time, and the flange 30 with the hole is externally fitted to the positioning pin 39. As a result, the body 28 can be supported on the hanger device 16 via the pallet 35, and the self-propelled body 5 can run poorly by opening the clamp device 70.

As shown in FIG. 6, the self-propelled vehicle 5 is stored on the fixed path 15 before reaching the transfer device 80, during which the pallet is
Various tasks such as writing on 35 ID cards are performed. In addition, various tasks can be performed automatically or in the work space 97
This is done manually using.

Then, the self-propelled body 5 enters the transfer device 80 and stops, and the transfer operation to the feeder device 96 is performed here. That is,
Move both movable bases 86 closer to each other, and move the support 87 to the pallet 35
First, the lifting / lowering device 89 is actuated to guide the guide rail 83 to raise the lifting / lowering frame 84. Then, the support member 87 comes into contact with the pallet 35 from below, and thereby lifts the pallet 35 supported by the cradle 19 of the hanger device 16. Next, the cylinder device 94 of the opening device 90 is extended, and the operation lever 93 is moved upward around the shaft 92. As a result, the operating lever 93 acts on the passive member 27 from below, and swings the empty arm member 18 outward as indicated by the phantom line. Next, the lifting / lowering device 89 is operated in the reverse of the above-described manner, and the support 87 is lowered together with the lifting / lowering frame 84.
As a result, the pallet 35 descending with the body 28 is transferred to the feeder device 96, and the support 87 is
The pallets 35 are pulled out from below by moving the 86s away from each other. After that, the pallet 35 supporting the body 28
Is transferred from the feeder device 96 to the floor-side transfer device 95, and the self-propelled body 5 travels to the lower side after performing the reverse operation of the opening device 90.

According to the present invention having the above-described structure, the self-propelled body directly supporting the transported object by the support device supports the transported object via the pallet by the operation of the pallet supply device and the lifting device. It is possible to perform various operations such as writing the data of the conveyed object on the pallet ID card by stopping the self-propelled body or making it in a storage state on the path to reach the transfer device . As a result, the work time spent in the transfer device can be reduced, and the flow of the entire line can be made faster and efficiency can be improved.

[Brief description of the drawings]

1 to 7 show an embodiment of the present invention. FIG. 1 is a front view of a pallet assembling section, FIG. 2 is a plan view of the same, FIG. 3 is a front view of a transfer section, FIG. Is a side view in a running state, and FIG.
FIG. 6 is a rear view, FIG. 6 is an overall schematic side view, FIG. 7 is a schematic plan view thereof, and FIG. 8 is an overall schematic side view showing a conventional example. DESCRIPTION OF SYMBOLS 1 ... Rail, 5 ... Self-propelled body, 6 ... Trolley body, 15 ... Constant path, 16 ... Hanger device (supporting device), 17 ... Front-back direction axis, 18
... Arm member, 19 ... Cradle, 27 ... Passive member, 28 ... Body (transported object), 29 ... Seal part, 30 ... Flange with hole, 35
... Pallet, 38 ... Support member, 39 ... Positioning pin, 40 ... Pallet feeding device, 44 ... Elevating frame, 49 ... Position adjusting device, 50 ...
Receiving conveyor, 51 ... Feeding conveyor, 60 ... Lifting device, 64 ... Lifting frame, 65 ... Lifting tool, 69 ... Clamping device, 70 ... Opening device, 80 ... Transferring device, 84 ... Lifting frame, 86 ... Moving table, 87 ... Supporting device, 90 ... Opening device, 95 ... Floor side transfer device, 96 ... Feeder device, 97 ... Work space.

Claims (1)

(57) [Claims] A self-propelled body supported and guided on a rail on the ceiling side and capable of traveling on a fixed route is provided.
The support device for the transferred object is mounted to be openable and closable in the left and right
In a fixed path, a pallet supply device and a lifting device for lifting the transferred object on the supporting device are provided, and the transferred object together with the pallet is transferred to the floor-side transfer device below the position where the lifting device is disposed. A transfer facility using a self-propelled body, provided with a transfer device for transferring.