JP2539869Y2 - Body transport device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a body transport device for transporting a body in a welding process, a painting process, and the like in an automobile assembly line.

[0002]

2. Description of the Related Art In a vehicle assembly line, when a body is transported in a welding step or the like, the work content is different in each step, so that it is inefficient to maintain a constant body transport speed. That is, during the welding operation, transport at low speed,
It is efficient to transfer the body at a high speed between the steps of transferring the body to the next welding step after the completion of the welding.

[0003] Therefore, in a step of performing a certain degree of welding on the body and then performing a finish welding, the body having completed a certain degree of welding is carried into a roller conveyer by a shuttle conveyer, and is conveyed by the roller conveyer. The body is transported to the slat conveyor in the finishing welding process.

[0004] In this case, the shuttle conveyor supports left and right side members of the body, and is carried into the roller conveyor. Therefore, the roller conveyor supports the left and right side sills of the body and conveys them in the direction of the slat conveyor.

The roller conveyor has a number of round bar-shaped rollers having the same diameter, which are arranged in parallel, applies rotation in the direction of position to these rollers, and conveys the body placed on the rollers. The roller on the carry-out side of the roller conveyor is provided near the carry-in end of the slat conveyor, and is configured so that the body can be smoothly transferred from the roller conveyor to the slat conveyor.

[0006]

[Problems to be Solved by the Invention] However, when the side sills on the left and right sides of the body are supported and conveyed by the roller conveyor, when the side sill gets over each roller, the end of the side sill comes into contact with the rollers and the conveyance is smoothly performed. In addition, there is a problem that the side sill is easily damaged by collision with the roller.

When a belt conveyor is used instead of the roller conveyor, a drive mechanism is provided between the discharge end of the belt conveyor and the transfer end of the slat conveyor, which hinders the movement of the belt conveyor and the slat conveyor. There is a problem that a large gap is generated between the body and the carry-in end, and the body cannot be smoothly connected.

The present invention has been made in view of the above-mentioned circumstances, and the purpose thereof is that even if a belt conveyor is used instead of a conventional roller conveyor, the body can be smoothly connected and transferred smoothly. It is an object of the present invention to provide a body transfer device that can be used.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention reciprocates back and forth in the transport direction, and
A shuttle conveyor having a support member for supporting the left and right side members ; and a shuttle conveyor on both sides of the unloading position of the shuttle conveyor.
The rear end of the formed belt is driven up and down with the front end as a fulcrum.
The belt is stopped when the lifting mechanism is driven up.
Has a drive mechanism to stop and rotate the belt during conveyance,
A belt conveyor for supporting and transferring the left and right side sills of the body which is carried by said shuttle conveyor, before
Serial rap and slat conveyor provided in the transfer direction of the belt conveyor supporting and carrying the side members of the left and right of the body, the carry-out side of the belt conveyor is located to the rear end between the belt conveyor and the slat conveyor And
A mini-conveyor having a front end wrapped around the carry-in side of the slat conveyor and supporting left and right side sills of the body carried from the belt conveyor so as to be connected to the slat conveyor.

[0010]

[Function] The left and right side sills of the body carried by the shuttle conveyor are placed on the belt conveyor, conveyed by the belt conveyor, and located at the discharge end, the side sill is connected to the mini conveyor, and the slat conveyor is conveyed by the mini conveyor. It is carried in. The slat conveyor supports and transports left and right side members of the body.

[0011]

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

FIG. 1 is a side view of a body conveying device, and FIG. 2 is a plan view of the same. In the figure, reference numeral 1 denotes a belt conveyor. In the belt conveyor 1, a pair of endless belts 2 arranged in parallel at a distance from each other are stretched between a driving pulley 3 and a driven pulley 4. The drive pulley 3 is fitted on the drive shaft 5,
One end of the drive shaft 5 is linked to a drive mechanism 6 provided outside the endless belt 2.

The driven pulley 4 is supported by a frame 7, which is supported by a lifting mechanism 8. The lifting mechanism 8 will be described.
Is a base, and a pivot shaft 11 is rotatably supported on the base 9 via a bearing base 10. Lower ends of a first arm 12 and a second arm 13 are fixed to the pivot shaft 11.

The upper end of the first arm 12 is connected to a rod 15 of a cylinder 14 supported at an angle to the base 9, and the upper end of the second arm 13 is connected to the frame 7.
A roller 16 is provided on the lower surface of the roller.

Therefore, when the rod 15 is immersed by the cylinder 14, the pivot shaft 11 rotates through the first arm 12, and the second arm 13 rotates upward with this rotation to roll and contact. The frame 7 is pushed up by the roller 16, and the belt conveyor 1 can be pushed up on the driven pulley 4 side with the driving pulley 3 side as a fulcrum.

Endless belts 2 and 2 of the belt conveyor 1
The distance between the left and right side sills 2 of the car body 20
As shown in FIG. 3, the distance is equal to the interval between 0a and 20a, and the left and right side sills 20a and 20a of the body 20 can be supported and transported in one direction.
1b is a carry-out side.

A well-known slat conveyor 21 is provided on the discharge side 1b of the belt conveyor 1. The slat conveyor 21 has a wide endless belt 23 stretched between a driving pulley 22 and a driven pulley (not shown).
It is composed of

The endless belt 23 is narrower than the interval between the endless belts 2 and 2 of the belt conveyor 1 and, as shown in FIG. 3, the left and right side members 20b and 2 of the body 20.
0b and can be transported in one direction.
21a is a carry-in side of the slat conveyor 21. The drive pulley 22 is fitted on a drive shaft 24, and one end of the drive shaft 24 is linked to a drive mechanism 25 provided outside the endless belt 23.

Further, the unloading side 1 of the belt conveyor 1
A mini-conveyor 26 is provided between the “b” and the loading side 21 a of the slat conveyor 21. This mini conveyor 2
Reference numeral 6 denotes a pair of endless belts 27 which are spaced apart and arranged in parallel between a driving pulley 28 and a driven pulley 29.

The drive pulley 28 is fitted on a drive shaft 30, and one end of the drive shaft 30 is interlocked with the drive shaft 5 via a speed reduction interlocking mechanism 31 disposed outside the endless belt 27. .

The loading side 2 of the mini-conveyor 26
6a wraps around the unloading side 1b of the belt conveyor 1,
The carry-out side 26b is the carry-in side 21 of the slat conveyor 21.
wrapped in a.

Further, the distance between the endless belts 27 of the mini-conveyor 26 is the same as that of the belt conveyer 1,
Left and right side sills 20a, 20a of the vehicle body 20
As shown in FIG. 3, the left and right side sills 20a, 20a of the body 20 are supported and can be conveyed in one direction.

As described above, the belt conveyor 1 and the slat conveyor 21 are connected by the mini-conveyor 26, and the body 20 can be smoothly connected to the slat conveyor 21 from the belt conveyor 1.

On the other hand, there is provided a shuttle conveyor 32 having a conveyance path between the endless belts 2 and 2 of the belt conveyor 1. The shuttle conveyor 32 is configured as shown in FIGS. A shuttle bar 34 that can reciprocate in the direction of the arrow by a shuttle guide 33 is provided. The shuttle bar 34 is provided with a support mechanism 35.

The support mechanism 35 will be described.
Reference numeral 6 denotes a frame. Both ends of a pair of support shafts 37, 37 separated in the moving direction of the shuttle conveyor 32 are rotatably supported by bearings 38, 38 on the frame 36.

An intermediate portion of a turning arm 40 is fixed to an intermediate portion in the axial direction of the support shafts 37, 37 via a fitting member 39, and a support plate 41 is horizontally mounted on an upper end of the turning arm 40. It is fixed to. At both ends of the support plate 41, engagement pins 42, 42 inserted into engagement holes 20c formed in the side members 20b of the body 20 project upward.

A fitting member 43 having a tapered hole is fixed to the lower end of the rotating arm 40, and a positioning pin 44 which can be inserted into and removed from the tapered hole is provided on the fitting member 43. The positioning pin 44 is connected to the forward / backward drive mechanism 4.
5 is supported to be able to move forward and backward. Therefore, when the positioning pin 44 is inserted into the tapered hole of the fitting member 43, the rotation arm 40 is locked so as not to rotate, and the rotation arm 40 is held in a vertical state. I have.

Further, a lever 46 having an upper end fitted to the support shaft 37 is provided adjacent to the fitting member 43, and a lower end of the lever 46 is connected to a rod 48 of a cylinder 47. Then, the lever 46 is moved by the cylinder 47.
Is rotated to rotate the support shaft 37 and rotate the rotating arm 40 in the direction of the arrow.
Reference numeral 49 denotes a bracket, and reference numeral 50 denotes a stopper that comes into contact with the bracket 49.

Next, the operation of the body transport device configured as described above will be described. Slat conveyor 32
Support mechanism 3 two pivot arms 40 back and forth in 5 is held in a vertical state, these pivot engaging pin 42 provided on the arm 40 body 20 side members 20b
Is engaged with the engagement hole 20c formed in the hole.

[0030] Thus, body 20 is supported by four engagement pins 42 of the support mechanism 35, the body 20 advances the support mechanism 35 by the shuttle guides 33
Is opposed to the belt conveyor 1 , the belt conveyor 1
Elevated Ru received the body 20 by a belt conveyor 1. In this case, the left and right side sills 20a, 20a of the body 20 are supported on the endless belts 2, 2 of the belt conveyor 1.

When the transfer of the body 20 to the belt conveyor 1 is confirmed, the cylinder 14 of the elevating mechanism 8 is operated, and when the rod 15 is retracted, the pivot shaft 11 rotates via the first arm 12. Then, with this rotation, the second arm 13
Pivots upward to push up the frame 7 by the contact roller 16.

Accordingly, the driven pulley 4 is pushed upward with the driven pulley 3 as a fulcrum, and the belt conveyor 1 and the body 20 are inclined. When the body 20 is tilted, the engagement pin 42 of the support mechanism 35 is missing from the side members 20b, 20b of the engaging hole 20c, the body 20 is separated from the shuttle conveyor 32.

Next, after the positioning pins 44 forward and backward driving mechanism 45 is actuated in the support mechanism 35 is escaped from the engagement member 43, the rod 48 cylinder 47 is actuated to project the lever 46 clockwise Rotate. Therefore, the support shaft 37 rotates, and the rotation arm 40 rotates clockwise with the rotation of the support shaft 37.

When the rotating arm 40 is rotated clockwise to be in a horizontal state, the shuttle conveyor 32 retreats and returns to the position where the next body 20 is loaded. Then, when the cylinder 14 of the elevating mechanism 8 is operated again and the rod 15 is protruded, the pivot shaft 11 rotates via the first arm 12,
With this rotation, the second arm 13 rotates downward, and the frame 7 moves down together with the rolling contact roller 16.

Therefore, the driven pulley 4 of the belt conveyor 1 descends with its driving pulley 3 as a fulcrum,
The belt conveyor 1 and the body 20 return to the horizontal state. When the drive mechanism 6 of the belt conveyor 1 operates, the endless belts 2 and 2 travel to move the body 20 to the unloading side 1.
b.

Since a mini-conveyor 26 is provided on the carry-out side 1b of the belt conveyor 1 so as to overlap therewith, the body 20 is smoothly connected to the carry-in side 26a of the mini-conveyor 26, and further, the carry-in side of the slat conveyor 21 is provided. 21a
It is carried in.

In this case, since the endless belts 27 of the mini-conveyor 26 have the same interval as the endless belts 2 of the belt conveyor 1, the side sill 2 of the body 20
0a, 20a are supported by the mini-conveyor 26, and the slat conveyor 21 is a side member 20b, 20 of the body 20.
b and is transported. Therefore, the mini conveyor 26
The side sill 20 of the body 20
a and 20a are supported by the mini-conveyor 26, and the side members 20b and 20b are supported by the slat conveyor 21.

The body 20 carried by the shuttle conveyor 32 is conveyed by the belt conveyor 1 and carried into the slat conveyor 21. A mini-conveyor 26 is provided between the belt conveyor 1 and the slat conveyor 21. Therefore, the body 20 is smoothly transferred and transferred.

In the above embodiment, the belt conveyor 1 is stopped when the belt conveyor 1 is moved up and down (inclined) by the elevating mechanism 8, but may be inclined during traveling.

The driving pulley 28 of the mini-conveyor 26
Although one end of the drive shaft 30 having the drive pulley 28 as a drive source for driving the drive shaft 5 is interlocked with the drive shaft 5 via the deceleration interlocking mechanism 31, an independent drive mechanism may be provided.

[0041]

[Effects of the Invention] As described above, according to the invention, the shuttle conveyor conveys and stops at a predetermined unloading position.
Body that has been tilted by the belt conveyor.
Support the side sill and receive it from the shuttle conveyor, then
, And drive the belt conveyor through the mini conveyor
The body can be transferred to the slat conveyor. I
Therefore, the shuttle conveyor moves from the shuttle conveyor to the slat conveyor.
In order to transfer the data securely, the drive / stop
Transported to a predetermined position by a shuttle conveyor
Be sure to secure the belt body without disturbing the sent body.
This makes it possible to place the device on a conveyor and to use a belt conveyor instead of a conventional roller conveyor, so that there is an effect that the body can be smoothly connected and transported smoothly.

[Brief description of the drawings]

FIG. 1 is a side view of a body conveying device according to an embodiment of the present invention.

FIG. 2 is a plan view of the body transport device of the embodiment.

FIG. 3 is an exemplary sectional view showing the state of supporting the body of the embodiment;

FIG. 4 is an exemplary sectional view showing a state of supporting the body in the shuttle conveyor of the embodiment.

FIG. 5 is a side view showing a support mechanism of the shuttle conveyor of the embodiment.

[Explanation of symbols]

1 ... belt conveyor, 21 ... slat conveyor, 26 ...
Mini conveyor, 32 ... Shuttle conveyor.

Claims (1)

(57) [Scope of request for utility model registration] 1. Reciprocating back and forth in the transport direction to the left of the body
A shuttle conveyor having a support member for supporting a right side member, and bells formed on both sides of a carry-out position of the shuttle conveyor
A lifting mechanism that drives the rear end up and down with the front end as a fulcrum;
The belt is stopped when the lifting mechanism is driven up, and the same
A belt conveyor having a drive mechanism for rotating and driving a belt, and supporting and conveying left and right side sills of the body carried in by the shuttle conveyor; and left and right side members of the body provided on the side of the belt conveyor in the conveying direction. A slat conveyor for supporting and transporting the belt, a belt provided between the belt conveyor and the slat conveyor, with a rear end wrapped around the carry-out side of the belt conveyor and a front end wrapped around the carry-in side of the slat conveyor. And a mini-conveyor that supports left and right side sills of the body carried in from the conveyor and transfers the slats to the slat conveyor.