JPH045580B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a suspension conveyance method and suspension conveyance equipment employed for supporting and conveying an automobile body in an automobile manufacturing line.

Conventional technology Conventionally, this type of suspension conveyance device for tilting an automobile body, etc.
The structure found in Publication No. 57-11935 is provided. In this conventional type, a lever is pivotally connected to a pair of front and rear carriers, and the free ends of these levers are pivotally connected to each other at a pivot point. An object suspension device, a cam plate, a folding arm, and a return arm are fixed to the front lever, and a locking rod that engages and disengages from the cam surface of the recessed portion of the cam plate is pivotally attached to the front carrier. According to this conventional method, the direction of the conveyed object can be changed by rotating the cam plate by applying rollers attached to the cam plate to the folding guide and return guide, and the changing position is also controlled by the locking rod. Can be locked.

Problems to be Solved by the Invention In the conventional type as described above, the object to be transported is rotated at a 90 degree angle due to the locking rod acting on the cam plate from the side and the cam shape of the cam plate. It can only be rotated in the forward and reverse directions within the range, and therefore, for example, the forward-facing body cannot be turned to the left or right, or to the rear, depending on the type of work process. I couldn't get it to the best orientation. Furthermore, since the rotational force is applied to a position away from the transported object, the rotation cannot be performed smoothly.

The object of the present invention is to provide a method for suspending and transporting an automobile body, which allows the orientation of the automobile body to be arbitrarily changed in all directions, and to smoothly change the posture and firmly maintain the posture. The point is to provide equipment.

Means for Solving the Problems In order to solve the above-mentioned problems, the method of suspending and transporting an automobile body according to the first aspect of the present invention is to support an automobile body at the bottom of a movable body that is guided by rails and can freely travel on a fixed path. A device is provided, and this support device is provided with a frame body supported on the movable body side, a hanger rotatably attached to the frame body around the vertical axis, and a hanger disposed on the frame body and vertically attached to the hanger side. The lock device is configured with a locking device that can be freely engaged and detached from any direction, and a locked part for unlocking is formed at the upper end of this locking device, and the body is supported by the supporting device when the moving object is running. Then, the body is conveyed on a certain path, and the moving body is stopped at a proper place on this certain path, and at the same time, the locked part is engaged with the release device provided at the proper place, and the rotation operation device provided at the proper place is engaged. The lock device is engaged with the hanger, and before and after this, the lock device is unlocked by upward movement of the release device, and then the hanger is rotated around the vertical axis by actuation of the rotation operation device. The orientation of the body supported by the hanger is changed, and then the locking device is moved to lock by the reverse action of the release device, and after the rotary operation device is released, the movable body is made to travel again.

Further, in the suspension conveyance equipment for an automobile body according to the second aspect of the present invention, a supporting device for the automobile body is provided at a lower part of a moving body that is guided by rails and can travel on a fixed path, and this supporting device is supported on the side of the moving body. a frame body, a hanger attached to the frame body rotatably around the vertical axis, and a locking device disposed on the frame body and detachable from the vertical direction on the hanger side, A locked part for unlocking is formed at the upper end of the locking device, and a rotary operating device that can be freely engaged with and detached from the hanger is provided at an appropriate position along the certain path, and the locked part of the locking device can be freely engaged. A release device is provided.

The suspension conveyance equipment for automobile bodies according to the third aspect of the present invention includes, at a suitable location on the certain path, an engaging tool that can be freely engaged and disengaged from the horizontal rod of the hanger by moving up and down, and can also be freely rotated around the vertical axis. and a release device with which the locked portion of the lock device can be freely engaged.

Effects According to the configuration of the first invention, the movable body is stopped at a proper location on a certain path, and at the same time, the locked part is engaged with the release device, and the rotation operating device is engaged with the hanger, and at the same time, After releasing the lock of the locking device by moving the release device up and down, the hanger can be rotated in the forward and reverse directions about the vertical axis relative to the frame by operating the rotation operating device. With this, the orientation of the automobile body supported by the hanger can be changed in any direction, left or right, and at any angle. Thereafter, the locking device is moved down to perform a new locking motion, and the rotary operating device is moved away from the hanger, so that the desired suspended conveyance can be performed with the orientation of the automobile body changed.

According to the structure of the second invention, the method of the first invention can be carried out easily and reliably, and furthermore, according to the structure of the third invention, the method of the present invention can be carried out easily and reliably. The tool can be engaged and detached from directly below, and rotational force can be applied by aligning the vertical axis and the vertical axis.

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 hanging conveyance device, which includes a trolley guide rail 2, a trolley drive device rail 3 installed above the trolley guide rail 2, and a fixed path 27 guided by the trolley guide rail 2. A trolley device (an example of a moving body) 4 that can freely travel on the trolley device 4, a support device 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. configured.
The trolley device 4 includes a front trolley 7, a free trolley 8, a rear trolley 9, and a connecting rod 10 that connects the front trolley 7 and the free trolley 8.
, a connecting frame 13 that connects trunnion pins 11 and 12 that are connected from the free trolley 8 and the rear trolley 9, and a connecting frame 13 that is attached to each trolley 7, 8, and 9 to be supported and guided by the trolley guide rail 2. It consists of guide wheels 14, 15, 16 and wheels 17, 18, 19 for preventing lateral vibration. The front trolley 7 has a passive dog 21 that can be engaged with and detached from the transmission protrusion 20 from the trolley drive device 6 so as to be able to move up and down, and can also swing up and down via a horizontal shaft 22 in the middle thereof. The attached operating lever 23 extends forward. The rear end of the operating lever 23 and the lower end of the passive dog 21 are connected via a pin. Therefore, the operating lever 23 and the passive dog 21 are
When the dog moves upward, the passive dog 21 is moved downward. Normally, the passive dog 21 is
It is raised by the biasing weight on the tip side of the operating lever 23. The front trolley 7 has a contact member 24 located below the operating lever 23, and has a hold dog 25 located behind the passive dog 21 at the rear of the upper end. This hold dog 25 is configured to be able to swing back and forth, and normally its upper end is weight-biased so as to enter the moving path of the transmission protrusion 20. In this state, the lower end of the hold dog 25 It is maintained by contacting the side. The other rear trolley 9 is connected to the operating lever 23.
A cam tail 26 that moves the cam upward extends rearward. The support device 5 includes a frame body 28 supported on the trolley device 4 side, and a vertical axis 2 attached to the frame body 28.
Hanger 30 attached so that it can rotate freely in the forward and reverse directions around 9
and a locking device 31 which is disposed on the frame body 28 and can be freely engaged and detached from the hanger 30 side from above and below. That is, hanging frames 32 are vertically provided from both the front and rear ends of the connection frame 13, and guide grooves 33 having a predetermined length are formed in the vertical direction in these hanging frames 32. A pair of front and rear brackets 34 are erected from the upper surface of the frame 28, and horizontal pins 35 attached to the upper ends of these brackets 34 are inserted into the guide grooves 33. As a result, the frame body 28
can approach and leave (raise and lower) relative to the trolley device 4 within a predetermined range. Furthermore, guide groove 3
One side of 3 is made wide in the front and back direction and has a horizontal pin 35.
are engaged with each other with a certain amount of leeway, so that the above-mentioned approach and separation can be performed by tilting one side. Support rods 36 are arranged upwardly at the front and rear ends of the frame body 28, respectively, distributed to the left and right.
Guide rollers 3 are attached to the upper ends of these support rods 36, respectively.
7 is installed. At the center of the lower surface of the frame 28, a rotary connector 38 consisting of a combination of a shaft and a bearing, for example, is attached.
The hanger 30 is attached to. This hanger 3
0 is the ceiling frame 3 attached to the rotary connector 38.
9, a pair of vertical bars 40 continuous from one end of this ceiling frame 39, horizontal bars 41 continuous from the lower ends of these vertical bars 40 in the same direction, and a plurality of upward supports attached to each of these horizontal bars 41. 42. Note that in order to stabilize the rotation, the frame body 28
A disk 43 is attached to the bottom surface of the top frame 39, and a rotating body 44 that comes into contact with the bottom surface of the disk 43 is attached to the top frame 39.
Multiple units are installed. The lock device 31 includes a lock pin 4 inserted into the frame 28 so as to be able to rise and fall freely.
5, and a spring 4 that biases this lock pin 45 downward.
6, and a locked portion 47 for unlocking formed at the upper end of the lock pin 45, and the top frame 39 has a lock hole 48 in which the lock pin 45 can be freely engaged and detached.
A plurality of them are formed around the vertical axis 29. A rotary operating device 50 that can be freely engaged with and disengaged from the hanger 30 from below and rotatable around the vertical axis 49, and a release device 51 for the locking device 31 are provided at appropriate locations on the fixed path 27. That is, the rotation operating device 5
0 is a lifting drive device 52 such as a panda graph type
an elevating table 53 attached above, a rotary table 54 disposed on the elevating table 53 to rotate around the vertical axis 49, and both tables 53, 54.
A plurality of engaging tools 56 are provided on the rotary table 54 and can be freely engaged with and detached from the horizontal rod 41 from below. provided. The release device 51 is composed of a cylinder device 57 and a locking portion 58 attached to the lower end of the downward piston rod, and the locked portion 47 can be freely engaged and disengaged from the locking portion 58 in the conveyance direction. . A guide rail 59 into which the guide roller 37 can be fitted is provided, and the cylinder device 57 is attached to the guide rail 59 via a bracket 60. 61
is an automobile body.

The operation of the above embodiment will be explained below.

Normally, the trolley device 4 travels when the transmission protrusion 20 engages with the passive dog 21.
At this time, the front end of the operating lever 23 is moving downward. If the trolley device 4 tries to run out of control during such movement, the hold dog 25 comes into contact with the transmission protrusion 20, so that runaway is prevented. When the fixed path 27 is an upward path or a downward path, the trolley device 4 also tilts along the slope. When the path is upward, the guide roller 37 at the rear end acts on the guide rail disposed along the path, and the horizontal pin 35 is moved upward within the guide groove 33 at the rear end to raise the frame. The rear end of the body 28 can be raised and the hanger 30 side can be kept horizontal. Furthermore, during the downward path, the guide roller 37 at the front end may act on the guide rail. This also allows the side of the hanger 30 to be positively tilted in the horizontal path section, thereby making it possible to tilt the vehicle body 61 conveniently for various operations.

Next, as shown in FIG. 1, the solid line in FIG. 2, and FIG.
We will explain the effect of turning the object sideways at the appropriate location. When stopping the trolley device 4 at a proper position (predetermined position), a stopper plate is inserted above the trolley guide rail 2. As a result, the passive dog 21 descends and enters under the stopper plate, disengaging from the transmission protrusion 20 and putting the trolley device 4 in a non-driving state.The hold dog 25 also comes into contact with the stopper plate, and the subsequent operation Movement is stopped. After stopping, first, the elevating drive device 52 is activated to raise the rotary table 54 together with the elevating table 53, and as shown in FIG.
is engaged with the horizontal rod 41. During the above-mentioned stop, the locked portion 47 engages with the locking portion 5 as shown in FIG.
8 is automatically engaged. Therefore, the engagement tool 56
By retracting the cylinder device 57 before and after engagement, the locking pin 45 can be raised against the spring 46 and released from the locking hole 48, thereby unlocking the locking device 31. After the lock is released and engaged, the rotary drive device 55 is operated to rotate the rotary table 54 about the vertical axis 49. This rotational force is applied to the hanger 30 via the engagement tool 56.
The hanger 30 is rotated integrally in the forward and reverse directions around the vertical axis 29. As a result, the vehicle body 61 can be turned laterally with respect to the constant path 27, as shown in the imaginary lines in FIGS. 1 and 2, and in FIG. 4B. Thereafter, by the reverse action of the release device 51, the lock pin 45 is lowered and engaged with the lock hole 48, the lock device 31 is moved to lock, and the rotary operating device 50 is further lowered to move to the desired conveyance. As a result, the pitch (P ₂ ) during horizontal feeding shown in FIG. 4B can be made shorter than the pitch (P ₁ ) during vertical feeding shown in FIG. 4A.

By engaging the guide roller 37 with the guide rail 59 during the direction change, it is possible to prevent the support device 5 from swinging. This guide rail 59 may be arranged along the fixed path 27 to guide movement.

As shown in FIG. 3, in the horizontal conveyance state, for example, by supporting and guiding the rear guide roller 37 with the guide rail 62 installed above,
The front transverse pin 35 is at the lower end of the guide groove 33, while the rear transverse pin 35 can be located above the guide groove 33, thereby tilting the transverse vehicle body 61 with the support device 5 with respect to the transport direction. can be done. Therefore, the operator on the conveyor 63 can perform a tilting operation.

The above-mentioned orientation change operation can also make it possible to change from sideways to forward facing, and furthermore, change from portrait to landscape can be done in either direction, and a 180 degree rotation can also make it possible to change between forward facing and backward facing. obtain.

In the above embodiment, the rotary operating device 50 is of a type in which the engaging tool 56 is engaged with and disengaged from the horizontal rod 41 of the hanger 30 from below, but when carrying out the second invention, the rotary operating device 50 is hanger 30
Since it is only necessary to rotate the piston rod around the vertical axis 49, for example, the cylinder device is arranged horizontally at an appropriate position on the fixed path 27, and the engaging tool 56 attached to the piston rod is rotated around the ceiling frame 39 of the hanger 30 or vertically. Rod 40
Applying rotational force by engaging and disengaging the
Various formats may be adopted.

Effects of the Invention According to the method of the first invention configured as described above, the movable body is stopped at a proper place on a fixed path, and the rotation operating device is engaged with the hanger, and before and after this, the release device is used to release the lock device. After manually releasing the lock, by activating the rotation operating device, the hanger can be rotated in the forward and reverse directions around the vertical axis relative to the frame. The orientation can be changed in any direction, left or right, and at any angle. Thereafter, by lowering the locking device to perform a new locking motion and disengaging the rotary operating device, the desired suspended conveyance can be performed with the orientation of the automobile body changed. This allows the car body to be suspended and transported with its length aligned with a certain path direction, facing forward or backward, or sideways to the left or right, making it possible to carry out various tasks in a suitable orientation. can be done.

Further, according to the equipment of the second invention, the method of the first invention can be carried out easily and reliably, and furthermore, according to the equipment of the third invention, the engaging tool can be moved directly below the hanger supporting the automobile body. In addition to being able to engage and disengage from the shaft, a rotational force can be applied by aligning the vertical axis and the vertical axis, and rotation due to changing the posture can be smoothly performed with a small rotational force.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a side view, FIG. 2 is a front view, FIG. 3 is a side view showing an example of lateral feeding work, and FIGS. 4A and B are action explanatory views. be. DESCRIPTION OF SYMBOLS 1... Hanging conveyance device, 2... Trolley guide rail, 4... Trolley device (moving body), 5... Transported object support device, 6... Trolley drive device, 20...
Transmission protrusion, 21...Passive dog, 27...Constant path, 28...Frame body, 29...Vertical axis, 30...
Hanger, 31...Lock device, 32...Hanging frame, 3
3...Guide groove, 35...Horizontal pin, 37...Guide roller, 38...Rotating connector, 41...Horizontal rod,
42... Receiver, 45... Lock pin, 47...
Locked part, 48...Lock hole, 49...Vertical axis center,
50...Rotation operation device, 51...Release device, 53
... Lifting table, 54 ... Rotating table, 56
...Engaging tool, 58...Locking portion, 59...Guide rail, 61...Automobile body.

Claims (1)

[Scope of Claims] 1. An automobile body support device is provided at the lower part of a moving body that is guided by rails and can freely travel on a fixed route,
This support device includes a frame body supported on the movable body side, a hanger rotatably attached to the frame body around the vertical axis, and a hanger disposed on the frame body and detachable from the vertical direction on the hanger side. In addition to a flexible locking device, a locked part for unlocking is formed at the upper end of the locking device, and the body is supported by the supporting device as the moving object moves. The moving body is conveyed on a fixed path, and at the same time, the moving body is stopped at a proper location on the fixed route, the locked part is engaged with a release device provided at a proper location, and a rotating operation device provided at a proper location is engaged with the hanger. match,
Around this time, the locking device is unlocked by upwardly moving the releasing device, and then the hanger is rotated around the vertical axis by operating the rotation operating device, and the hanger is supported by this hanger. 1. A method for suspending and transporting an automobile body, which comprises changing the orientation of the body, then locking a locking device by the reverse action of a release device, and disengaging the rotary operating device, and then causing the moving body to travel again. 2. An automobile body support device is provided at the bottom of a moving object that can freely travel on a fixed route guided by rails,
This support device includes a frame body supported on the movable body side, a hanger rotatably attached to the frame body around the vertical axis, and a hanger disposed on the frame body and detachable from the vertical direction on the hanger side. A locking part is formed at the upper end of the locking device to release the lock, and a locked part for unlocking is formed at the upper end of the locking device.
A suspension conveyance facility for automobile bodies, characterized in that a rotary operating device that can be freely engaged with and disengaged from the hanger, and a release device that can be freely engaged with a locked portion of the locking device. 3. An automobile body support device is provided at the bottom of a moving object that can freely travel on a fixed route guided by rails,
This support device includes a frame body supported on the movable body side, a hanger rotatably attached to the frame body around a vertical axis, and a hanger arranged on the frame body and detachable from the vertical direction on the hanger side. At the same time, a locked part for unlocking is formed at the upper end of the locking device, and a locked part for unlocking is formed at the upper end of the locking device.
A rotation operating device having an engaging tool that can be freely engaged and detached from the horizontal rod of the hanger by moving up and down and rotatable around a vertical axis, and a release device that can be freely engaged with a locked portion of the locking device. An automobile body suspension conveyance equipment according to claim 2, characterized in that the equipment is provided with: