JPH01317881A - Method for transferring door between lines to produce automobile - Google Patents

Abstract

PURPOSE:To enable a door rigging process to be in common applied to left and right doors by enabling the left and right doors separated from a car body and passed to a hanger to be returned to a transfer line through the corresponding hanger after their inside faces are directed outside by turning the hanger. CONSTITUTION:Engaging members 17A, 17B provided on a self-propelling body 5 support removably a pair of hanger supports 22(22A, 22B) supporting empty hangers 23(23A, 23B). When the self-propelling body 5 travels and stops to correspond to an unloading device 45 of a between-lines transfer device 40, a support bed 50 of said device 45 is fork moved to cause an engaging tool 51 to act on the hangers 23 and delivered onto conveyers 43 of left and right delivery lines 42 and then onto direction changing devices 44A, 44B. Here, the hangers 23 are turned to stand by for loading doors 38(38A, 38B) removed from a car body 37. The hanger 23 holding the door 38 is again turned and then loads the door on the hanger support 22 by a returning device 55 and transfers the door to the next process.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an inter-line door transfer method employed in an automobile production line to transfer a door separated from a vehicle body from one vehicle body transfer line to another. It is something.

Conventional technology In a car production line, painting is performed with the door still attached to the car body, and after the door is separated, the car body and the door are transported on separate lines and mounted for 1 m, and then the door is attached to the car body. There is a process of installation. That is, conventionally, as seen in Japanese Patent Application Laid-open No. 53-8884, for example, a body suspended and conveyed by an overhead conveyor via a body hanger is stopped at a first predetermined position, and then distributed to both sides. The door separated from the body was transferred to a door hanger on another power-and-free conveyor, and then the body and both doors were conveyed on their own lines (3 lines) before 1lWA was performed on the body and both doors. A method is provided in which both doors are later reassembled to the body in a second predetermined position.

Problems to be Solved by the Invention According to the above-mentioned conventional method, the door body transporting means constituted by a power and free conveyor must be installed on the left and right sides, and the same mounting process must be installed at separate locations on the left and right sides. However, it is easy to waste space and personnel. Furthermore, since the left and right doors are transported separately, when reassembling the door to the body at the second predetermined position, it is difficult to determine whether both doors belong to this body.

An object of the present invention is to transport the left and right doors separated from the vehicle body as a set on a common transport line, and to allow both doors to have their inner surfaces facing outward during transport. The present invention provides an inter-line transfer method.

Means for Solving the Problems In order to achieve the above object, the method of transferring doors between lines in an automobile production line of the present invention provides a
#! Transfer lines are formed on both sides of the transfer line, and a pair of left and right empty hangers conveyed by the second #I2 transfer line provided above the first transfer line is transferred to the corresponding transfer line. The door separated from the vehicle body on the first conveyance line is passed to the empty hanger, and after rotating the hei-tora hanger so that the inner surface of the door faces outward, these actual hangers are returned to the second conveyance line. .

According to the configuration of the present invention, the left and right doors are separated from the vehicle body and passed to the hanger, and after the inner surfaces of the left and right doors are turned outward by the rotation of the hanger, they are passed through the hanger to the first door! The left and right doors can then be set on a common line and transported with the inner surfaces of both doors facing outward.

Example An embodiment of the present invention will be described below based on the drawings.

Reference numeral 1 denotes a cross-sectional rail, which is mounted on a 7 lange 2 from the ceiling beam side and supported via a bracket 3, and a signal/power supply device 14 is mounted on the side opposite to the side to which the bracket 3 is connected. are arranged along the entire length. The self-propelled body 5, which is supported and guided by the rail 1 and can run freely, includes a plurality of (three in the embodiment) trolley bodies 6 in the running direction, and left and right trolley bodies 6 attached to the upper part of these trolley bodies 6 via bearings 7. a wheel 9 that is attached to these shafts 8 and can be freely placed on the upper surface of the rail 1; and a wheel body 9 that is attached to each trolley body 6 and that can come into contact with both upper and lower ends of the rail 1. A vibration prevention roller 10, a longitudinal connecting rod 12 that connects each trolley body 6 via a connecting bin 11, and one trolley body 6 of the group of 6 trolley bodies (the middle part in the embodiment). a traveling drive device 13 attached to the trolley main body 6 and linked to the shaft 8;
and a current collector W114 that can be slidably contacted with the signal/power supply device 4.
, as well as control 111 mounted via bracket 15
6. From the connecting rod 12, the front #l! There are 21 engaging members 17A, each consisting of two engaging members.

17B is installed vertically. These engaging members 17A, 17
B is provided corresponding to the intermediate and rear trolley main bodies 6, and is formed in the shape of a C or a hook when viewed from the front, and enables engagement and disengagement from the side.

A detector 19 (such as a limit switch or a phototube device) for preventing a rear-end collision is provided at the front end of the connecting rod 12, and a detected object 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 rails 1 and can freely travel on a fixed second conveyance line 18.

The pair of front and rear conveyed object support devices 21A, 2173, which can be freely engaged and detached from both the engaging members 17A, 173, have almost the same shape, and the engaging members 17A, 17B are provided with hanger supports that are detachable from each other. 22A, 22B, and a pair of left and right hangers 2 that can be freely attached to and removed from these hanger supports 22A and 22B.
3A, 233. The hanger support 2
2A, 22B has an engaged rod 24 on its upper part in the front-rear direction, which can be freely engaged and detached from the side with respect to the engaging members 17A, 173, and vertically extends from the center part of the engaged rod 24. A rod 25 is installed vertically. An intermediate arm rod 26 is connected in the left-right direction from the middle part of the vertical rod 25, and a bottom frame body 2 is provided at the lower part.
7 is installed. Free end (outside end) of the intermediate arm rod 26
A pair of front and rear hanger engagement tools 28 are respectively attached to the hanger engagement tools 28, and the hanger 23A,
23B can be freely engaged and detached from above.

A hanger receiver 29 is provided above the free end of the bottom frame body 27. The hangers 23A, 23B have upper rods 30 in the front and back direction that can be freely engaged and detached from above with respect to the hanger engagement tool 28, and vertical rods 31 are suspended from the front and rear ends of the upper rods 30, respectively. . A horizontal support member 33 and a clamp member 34 are provided at the intermediate portion 32 that connects the intermediate portions of the vertical rods 31, and an upward receiving member 36 is provided on the lower rod 35 that connects the lower end portions. It will be done.

1 to 3 show an inter-line transfer device 40 for doors 38A and 38B, and a first transport line 4 for transporting a vehicle body 37.
1 is formed by a conveying device using a truck, a slat- or chain-type conveyor 62, and the like. Delivery lines 42 are arranged in parallel on both sides of the first conveyance line 41, respectively. These delivery lines 42 are formed by a chain roller type conveyor 43, and a turntable type direction changing device 44A is installed in the middle of the conveyor 43.
A pair of 44B are provided.

Above the first transport line 41, the second transport line 18 is arranged in parallel. At the starting ends of both delivery lines 42, an unloading device 45 is provided for transferring the empty hangers 23A, 233 transported by the second transport line 18 to the corresponding delivery lines 42.

These unloading devices [45] have the same shape, and include a column 46 erected outside the delivery line 42, a lifting frame 47 supported and guided by the column 46, a lifting drive device 48, and a lifting frame 47 attached to the lifting frame 47. It is composed of a movable table (fork-shaped) 49 that can freely move forward and backward toward both lines 18.42, and a support table 50 that is attached to the free end of this movable table 49 and extends along both lines 18.42. Furthermore, the support stand 50 is provided with engagement tools 51 211 at the front and rear, which can be freely engaged with and detached from the upper rods 30 of both hangers 23A and 23B.

At the terminal ends of both delivery lines 42, there are hangers 23A of the fruits transported by the delivery lines 42.

A return device 55 is provided for returning the 23B to the fixed inscription 18. This return device 55 has the same configuration as the unloading device 45, and includes a column 56, a lifting frame 57, and a lifting drive device 58.
, a movable stand 59, a support stand 6G, an engaging tool 61, and the like.

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

The self-propelled body 5 operates the traveling drive bag [13 to move the wheel body 9
By forcibly rotating it, it travels on the first conveyance line 18 in a state where it is supported by the rail 1 by the plurality of wheels 9 and is prevented from lateral vibration by the plurality of lateral vibration prevention rollers 10. At that time, power is supplied to the self-propelled body 5 by the current collector 14 slidingly contacting the signal/power supply device 4, and signals are exchanged between the ground control unit and the control panel 16.
Stopping, running control, speed control, and presence f1 recognition are performed. The self-propelled object 5 that has been traveling in this way is stopped at a predetermined location, but at that time, the self-propelled object 5 that has been traveling following the self-propelled object 5 that has stopped in advance approaches the self-propelled object 5 unnecessarily. At this time, the detector 19 detects the detected object 20, and the subsequent movement of the self-propelled object 5 is automatically stopped.

First, the self-propelled body 5 engages the engaged rods 24 with the engaging members 17A and 17B, thereby attaching the pair of front and rear hanger supports 22.
A, 22B, and each hanger support 2
Hanger engagement tools 28 are located at both left and right ends of 2A and 22B.
At the same time, the hanger receiver 29 is engaged with the upper rod 30.
The empty hangers 23A and 2313 are supported by placing the lower rods 35 on them. At this time, the conveyed object support devices [21A, 21[3] consisting of the hanger supports 22A, 22B and the hangers 23A, 23B have a symmetrical shape when viewed from the front, so that the self-propelled body 5 can travel on the 21st feed line 18. (Transportation) is performed stably.

The self-propelled body 5 traveling in this manner is stopped facing the unloading device 45 of the inter-line transfer device 40.

Then both unloading devices 45 are activated. In other words, lift frame 4
The combination of the lifting and lowering movement of 7 and the arrival and departure of the movable table 49 causes the support table 50 to be fork-lifted, and its engagement tool 51 is applied to the upper rod 30 of the hangers 23A and 23B, thereby emptying these empty hangers 23A and 23B. 23B to hanger support 22A
.

After being unloaded from 22B, it is transferred onto the conveyor 43 of the delivery line 42. As a result, a pair of front and rear hangers 23A and 23B are placed directly on both conveyors 43, respectively. These hangers 23A, 23B are conveyed by respective conveyors 43, and the orientations are changed separately'@place 44A,
443. Then the direction change device 44A,
44B is rotated, and the direction of the contact member 33 is changed to face the first conveyance line 41. door 38A,
The vehicle body 37 to which 383 is assembled is conveyed on the first conveyor 41 by the conveyor 62, and is stopped at a predetermined position 1 between the left and right direction changing devices [44A and 443]. . Next, the door 38A of the vehicle body 37, 3
8B is removed, and both front doors 38A are attached to the front hanger 23A.
At the same time, the rain door 38B is stacked on the rear hanger 23B. Such work is performed manually or by automation. The lower edges of the stacked doors 38A and 38B are connected to the receiving member 36.
The outer surface is received by the abutment member 33 and the side edge is held by the clamp member 34. After the desired stowage has been carried out, the direction changing devices @44A and 443 are rotated to turn the inner surfaces of the doors 38A and 38B outward, that is, the first I! Direct it to the side opposite to the feed line 41. Next, each hanger 23A.

23BLtllll, and is stopped facing the return device 55. At this time, the 2811th feed line 18 is returned @5
As mentioned above, the part opposite to 5 is equipped with W145
The self-propelled body 5 with hangers 23A and 23B is stopped. Next, in the double return device @ 55, the support stand 60 is moved by the combination of the lowering movement of the lowering frame 51 and the clocking in and out of the movable metal 59, and the engaging tool 61 is moved to the hanger 23.
The upper rods 30 of A and 23B are actuated to lift these fruit hangers 23A and 23B from the conveyor 43, and then loaded onto the corresponding hanger supports 22A and 22B.

As a result, the object supporting branches [21A and 21B open the door 3]
The self-propelled body 5 supporting 8A and 383 can be moved to the next step. At this time, the left and right pair of front doors 38A and the left and right pair of primary doors 38B are connected to a common second door 38B via the self-propelled body 5 or the like.
They are conveyed as a set on the 1st feed line 18, and furthermore, all the doors 38A and 38f3 are conveyed on the door 8g line with their inner surfaces facing outward.

Effects of the Invention According to the present invention having the above configuration, the left and right doors separated from the vehicle body and passed to the hanger are turned with their inner surfaces facing outward by the rotation of the hanger, and then returned to the second conveyance line via the hanger. As a result, the left and right doors can be set on the common second conveyance line, and both doors can be conveyed with their inner surfaces facing outward. As a result, for example, the door II installation process (post-process) can be shared between the left and right doors, eliminating wasted space and personnel.
Moreover, work on the inner surface of the door can be performed easily, reliably, and quickly. Furthermore, by transporting the left and right doors as a set, there will be no mistakes when reassembling it to the vehicle body.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of the inter-line transfer device, Fig. 2 is a front view of the same, Fig. 3 is a plan view of the same, and Fig. 4 is a self-propelled to body part. FIG. 5 is a front view of the same, and FIG. 5 is a side view of the same. 1...Rail, 4...Signal/supply'R device, 5...
Self-propelled body, 13... Travel drive device, 14... Current collector, 16... Control panel, 17A, 17B... Engagement member, 18... 211th transmission line, 21A, 21B.・
・Transported object support device, 22A, 22B... Hanger support, 23A, 233... Hanger, 24... Engaged rod, 28... Hanger engaging tool, 30... Upper rod, 3
7... Vehicle body, 38A... Front door, 383... Rear door, 40... Line transfer device, 41... First conveyance line, 42... Delivery line, 44A. 443...Direction changing device, 45...Unloading device, 55
...Returning device, 62...Conveyor. Agent Yoshihiro MorimotoFigure 2

Claims (1)

[Claims] 1. A delivery line is formed on both sides of the first conveyance line that conveys the vehicle body, and a second conveyance line is provided above the first conveyance line.
Transfer the pair of left and right empty hangers that have been transported by the transport line to the corresponding delivery line, pass the door separated from the vehicle body on the first transport line to both empty hangers on this delivery line, and then rotate both the full hangers. A method for transferring doors between lines in an automobile production line, characterized in that after the inner surface of the door is turned outward, the actual hangers are returned to a second conveyance line.