JPH07108673B2 - Transport equipment using self-propelled body - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled transport facility used for transporting and storing a door separated from a vehicle body, for example, in an automobile production line.

2. Description of the Related Art In an automobile production line, painting is performed with the door still attached to the vehicle body, and after the door is separated, the vehicle body and the door are outfitted while being conveyed on separate lines, and then the door is attached to the vehicle body. There is a process called.

That is, in the prior art, as shown, for example, in Japanese Unexamined Patent Publication No. 53-8888, a body suspended and conveyed by an overhead conveyor via a body hanger is stopped at a first predetermined position, and is distributed to both sides. The door separated from the body was transferred to another power and free conveyor door hanger, and then the body and both doors were outfitted while carrying the body and both doors on their respective lines (3 lines). , A method of reassembling both doors to the body at the second predetermined position is provided.

According to the above conventional type, in the power and free conveyor, the chain for moving the group of door hangers is conveyed at a constant speed. Therefore, if this constant speed is high, the door rigging line is used. If the constant speed is low, it will not be possible to carry out the work efficiently after the work. In addition, since the chain etc. must be installed over the entire length, the drive device becomes large in size,
And the price will increase. Furthermore, a long storage line is required along the moving direction of the door hanger.

The object of the present invention is to enable high-speed transportation in a general path portion, but switch to low-speed transportation or stop in a specific path portion, and further the transportation means can be operated efficiently,
Moreover, the point is to provide a transportation facility using a self-propelled vehicle that can shorten the storage line.

Means for Solving the Problems In order to achieve the above-mentioned object, a transfer facility using a self-propelled body in the present invention is provided with a self-propelled body which is supported and guided by a rail and is capable of automatically traveling on a fixed route. In addition to providing the engaging member to the engaging member, the engaging member is provided with a removable object supporting device having a pair of left and right supporting portions, and a portion in which the predetermined paths are parallel to each other is provided. The storage device of the transported object supporting device is provided over the whole area, and the unloaded device for transferring the transported object supporting device transported by the self-propelled body to the start end portion of the storage device and the transported device reaching the end portion of the storage device. And a return device for transferring the transported object support device to the self-propelled body.

Action According to the configuration of the present invention, the self-propelled body is stopped corresponding to the starting end of the storage device, and the operation of the wholesaler causes
A transported object support device that supports a pair of left and right transported objects via a support portion is unloaded from the self-propelled body and delivered onto the starting end portion of the storage device. As a result, the transported object support device can be transported in the direction orthogonal to the fixed path, that is, in the lateral direction and stored. The empty self-propelled body travels at high speed and is stopped at the end of the storage device. By the operation of the returning device, it is possible to load the transported object support device reaching the end portion of the storage device onto the self-propelled body. Is different. Further, when the loading from the storage device is unnecessary, the self-propelled body passes through the end portion of the storage device and travels to the next process.

Embodiment One embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 is a rail with a cross-section shape, which is supported by a flange 2 from the ceiling beam side through a mounting bracket 3, and a signal / power supply device 4 is provided on the side opposite to the side to which the mounting bracket 3 is joined. It is arranged over.

Self-propelled body 5 that is supported and guided by this rail 1 and can run freely
Is a plurality (three in the embodiment) of trolley main bodies 6 in the traveling direction, shafts 8 in the left-right direction mounted on the tops of the trolley main bodies 6 via bearings 7, and the rails mounted on the shafts 8 and the rails. The wheel body 9 that can be placed on the upper surface of the rail 1 and the lateral shake preventing roller 10 that is attached to each trolley body 6 and can abut on both upper and lower ends of the rail 1 are connected to each trolley body 6. A connecting rod in the front-rear direction that is connected via a pin 11
12, a traveling drive device 13 attached to one of the trolley bodies 6 (in the embodiment, an intermediate portion) of the trolley body 6, and a traveling drive device 13 that interlocks with the shaft 8 of the trolley body 6, and to the identified trolley body 6. In addition, it is composed of a current collector 14 slidably in contact with the signal / power feeder 4 and a control panel 16 mounted via a bracket 15.

Two sets of engaging members 17A and 17B are vertically provided from the connecting rod 12 with the front and rear two as one set. These engaging members 17
A and 17B are provided so as to correspond to the trolley body 6 at the middle portion and the rear portion, and are formed in a C shape and a hook shape when viewed from the front, enabling engagement and disengagement from the side. The connecting rod 12
A detector (a limit switch, a photoelectric tube device, etc.) 19 for preventing a rear-end collision is provided at the front end of the, and an object to be detected 20 is provided at the rear end of the connecting rod 12. The self-propelled body 5 configured in this manner is supported and guided by the rail 1 and can travel on the fixed route 18.

A pair of front and rear object support devices 21A and 21B that are detachable (detachable) from and to the respective engaging members 17A and 17B have substantially the same shape, and can be detachably attached to the engaging members 17A and 17B. The hanger support 22A, 22B, and a pair of left and right hangers 23A, 23B that are detachable from the hanger support 22A, 22B.

The hanger support 22A, 22B has an engaged rod 24 that is engageable and disengageable from the side with respect to the engaging members 17A, 17B in the front-rear direction, and has a center of the engaged rod 24. A vertical rod 25 is hung from the section. An intermediate arm rod 26 is connected in the left-right direction from the intermediate portion of the vertical rod 25, and a bottom frame 27 is attached to the lower portion. A pair of front and rear hanger engaging members 28 are attached to the free ends (outer ends) of the intermediate arm rods 26, and the hangers 23A and 23B can be engaged with and disengaged from the hanger engaging members 28 from above. A hanger receiver 29 is provided above the free end of the bottom frame 27.

The hangers 23A, 23B have upper rods 30 in the front-rear direction that can be engaged with and disengaged from the hanger engaging members 28 from above, and vertical rods 31 are hung vertically from the front and rear ends of the upper rods 30, respectively. . This is because an intermediate rod 32 that connects the intermediate portions of the vertical rods 31 is provided with a laterally-applied padding member 33 and a clamp member 34, and a lower rod 35 that connects the lower end portions is provided with an upward receiving member.
36 are provided.

By supporting the front door 38A by the front hanger 23A and supporting the rear door 38B by the rear hanger 23B, the two hangers 23A, 23B form a support part for the both doors 38A, 38B, which are the objects to be conveyed. .

The fixed path 18 is meandering at a predetermined location, is provided with parallel portions at intervals, and the storage device 42 of the object support devices 21A and 21B is provided between the parallel portions 41. The storage device 42 has a pair of storage conveyors 43A and 43B facing the transported object support devices 21A and 21B, respectively, and the storage conveyors 43A and 43B are roller chain conveyors or chain conveyors.

Then, the object supporting devices 21A, 21A, which are conveyed by the self-propelled body 5, are opposed to the start ends of the storage conveyors 43A, 43B.
An unloading device 44 for transferring 21B to the start ends of the storage conveyors 43A, 43B is provided. This wholesaler 44 uses a fixed route 18
A column 46 standing upright on the outside of the column, an elevating frame 47 supported and guided by the column 46, an elevating and lowering drive device 48, and a movable table provided on the elevating frame 47 and movable back and forth toward the fixed path 18 ( (Fork-shaped) 49, and a support base 50 attached to the free end of the movable base 49 and along the fixed path 18, and the support base 50 is engaged with both hanger supports 22A, 22B. Two sets of engaging tools 51 which can be engaged with and disengaged from the rod 24 are provided at the front and rear.

Then, the object support devices 21A, 21B stored in the storage conveyors 43A, 43B and reaching the end portions of the storage conveyors 43A, 43B are opposed to the end portions of the storage conveyors 43A, 43B, and the transported object support devices 21A, 21B are mounted on the self-propelled body 5. A returning device 54 for transferring (returning) to (1) is provided. The returning device 54 has the same structure as the unloading device 44, and includes a support column 56, an elevating frame 57, an elevating drive device 58, a movable table 59, a support table 60, and an engaging tool 61.

Next, the operation of the above embodiment will be described.

The self-propelled body 5 is supported on the rail 1 by the plurality of wheel bodies 9 by operating the traveling drive device 13 to forcibly rotate the wheel body 9, and laterally vibrated by the plural lateral vibration prevention rollers 10. Automatically drive in a prevented state. At that time, power supply to the self-propelled body 5 is performed by the current collector 14 slidingly contacting the signal / power supply device 4, and a signal is transmitted / received between the ground control unit and the control panel 16. Stopping, running control, speed control, and seat confirmation are performed.

The self-propelled body 5 that has been running in this manner is stopped at a predetermined location, but at that time, the self-propelled body 5 that has been traveling subsequently approaches the self-propelled body 5 that has previously stopped. Then, the detector 19 detects the detected body 20, and the following traveling of the self-propelled body 5 is automatically stopped.

The self-propelled body 5 supports the pair of front and rear hanger supports 22A and 22B by engaging the engaged rods 24 with the engagement members 17A and 17B, and the left and right ends of the respective hanger supports 22A and 22B. The upper rod 30 is engaged with the hanger engaging member 28, and the lower rod 35 is placed on the hanger receiving member 29 to support the hangers 23A and 23B, respectively. Furthermore, a pair of left and right front doors 38A and 38B are stacked on the front hanger 23A,
A pair of left and right rear doors 38B are stacked on the rear hanger 23B. At that time, the lower edges of both doors 38A and 38B are receiving members 3
It is supported by 6, the outer surface is received by the contact member 33, and the side edges are held by the clamp member 34.

The self-propelled body 5 traveling on the fixed path 18 reaches the parallel portion 41 and is stopped corresponding to the start ends of the storage conveyors 43A and 43B of the storage device 42. That is, the transported object support device at the front
21A corresponds to the start end of one storage conveyor 43A,
Then, the rear object support device 21B is made to correspond to the starting end of the other storage conveyor 43B.

The unloading device 44 is then activated. That is, the support base 50 is forked by a combined operation of the up-and-down movement of the lift frame 47 and the withdrawal and retraction of the movable base 49, and the engagement tool 51 is moved to the hanger support tool 22.
The transported object support device 21 is caused to act on the engaged rods 24 of A and 22B.
After the A and 21B are wholesaled from the self-propelled body 5, the storage conveyor 4
Pass on 3A and 43B.

As a result, on one of the storage conveyors 43A, the front object support device 21A supporting the pair of left and right front doors 38A.
Will be placed sideways, and on the other storage conveyor 43B, the rear object support device 21B that supports the pair of left and right rear doors 38B will be placed sideways, and will be transported sideways and stored. To be done. At that time, the storage is performed by bringing the bottom frame bodies 27 into close contact with each other.

The self-propelled body 5 that has emptied both of the transported object support devices 21A and 21B travels at high speed and is stopped at the end portions of the storage conveyors 43A and 43B. And storage conveyor 43
Both transported object support devices 21A, 21B reaching the end of A, 43B
However, the loading amount is different from the above-mentioned wholesale amount, and when the loading from the storage unit is unnecessary, the self-propelled body 5 is connected to the end of the storage conveyor 43A, 43B. It passes through the parts and is moved to the next process.

The loading of both the object support devices 21A and 21B is performed by the return device 54.
Then, the supporting table is moved by 60 forks by the combined operation of the ascending / descending movement of the ascending / descending frame 57 and the reciprocating movement of the movable table 59, and the engaging tool 61
To act on the engaged rods 24 of the hanger supports 22A, 22B so that the transported object support devices 21A, 21B are moved to the storage conveyor 43.
After lifting from A, 43B, the corresponding engaged rod 2 of the self-propelled body 5
Engaged with 4. After this, the self-propelled body 5 is made to travel to the next step.

EFFECTS OF THE INVENTION According to the present invention having the above-described configuration, by stopping the self-propelled body in correspondence with the starting end of the storage device, the pair of left and right objects to be conveyed are supported through the support part by the operation of the unloading device. It is possible to wholesale the transported object support device from the self-propelled body and transfer it to the storage device. Accordingly, the transported object support device can be transported in the direction orthogonal to the fixed path, that is, in the lateral direction for storage. Therefore, the storage can be performed densely and efficiently on the storage device. The empty self-propelled body can run at high speed, can be stopped corresponding to the end part of the storage device, and by the operation of the return device, the transported object support device reaching the end part of the storage device, Can be loaded on self-propelled vehicles. When the storage device does not need to be loaded, the self-propelled body can pass through the end portion of the storage device and travel to the next process.

As described above, according to the present invention, by controlling the traveling of the self-propelled body such as high-speed traveling or low-speed traveling, it is possible to perform high-speed transportation on a general route portion and switch to low-speed transportation or stop on a specific route portion. In addition, since the self-propelled body can be sequentially used for various conveyances, the number of self-propelled bodies can be reduced and the self-propelled body can be efficiently operated. Moreover, storage can be performed densely and efficiently on the storage device, and the storage line can be shortened.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a plan view and FIG.
The drawing is a side view, FIG. 3 is a view as seen from the arrow A in FIG. 2, FIG. 4 is a side view in a normal carrying state, and FIG. 5 is a front view of the same. 1 ... Rail, 4 ... Signal / power supply device, 5 ... Self-propelled body,
13: traveling drive, 14: current collector, 16: control panel,
17A, 17B ... Engaging member, 18 ... Constant path, 21A, 21B ... Transported object support device, 22A, 22B ... Hanger support, 23A, 23B ...
… Hangers (supporting parts), 24 …… Engaged rods, 27 …… Bottom frame,
28 …… Hanger engagement tool, 30 …… Upper rod, 38A …… Front door (transported object), 38B …… Rear door (transported object), 41 ……
Parallel part, 42 ... Storage device, 44 ... Wholesale device, 54 ...
... return device.

Claims (1)

[Claims] 1. A self-propelled body which is supported and guided by a rail and is capable of automatically traveling on a fixed path, an engaging member is provided on the self-propelled body, and a pair of left and right supports which are detachable from the engaging member. A carrier supporting device having a portion, the fixed paths are provided in parallel at intervals, the storage device of the carrier supporting device is provided between the parallel parts, and the moving object is carried by the self-propelled body. And a return device that transfers the transported object support device that has reached the end portion of the storage device to the self-propelled body. Transport equipment using self-propelled body.