JP2002018668A - Positioning device for conveying carriage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a positioning device for a conveying carriage capable of certainly stopping the conveying carriage at a machining position at which the conveying carriage abuts on a stopper without positional displacement. SOLUTION: This positioning device 2 of the conveying carriage 1 positions the conveying carriage 1 capable of running along a conveying passage 11 at a predetermined machining position. On the conveying passage 11 side, the stopper 21 for abutting on the conveying carriage 1 at the machining position X to stop the running of the conveying carriage 1. The conveying carriage 1 is provided with a positioning pin 23 lockable and unlockable on or from a locking hole 13 disposed on the conveying passage 11 side at the machining position X, and a pulling means 25 for pulling the conveying carriage 1 to the stopper 21 side to forcibly allowing the carriage 1 to abut on stopper 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carriage positioning apparatus for positioning a carriage provided at a predetermined processing position so as to be able to travel along a transportation path.

[0002]

2. Description of the Related Art Conventionally, as a positioning device for a transport vehicle, as shown in FIG. 3, a stopper b which comes into contact with a transport vehicle d at a processing position X is provided on a transport path a side, and a processing position is provided at the transport vehicle d. In X, a positioning pin e is provided which can be freely engaged and disengaged from a locking hole c provided on the side of the transport path a.
Is stopped by the stopper b, and the positioning pin e is inserted into the locking hole c and locked to position the carriage d at the processing position X.

[0003]

However, in the prior art in which the carriage d is brought into contact with the stopper b to stop traveling, as shown in FIG. 3, the carriage d comes into contact with the stopper b as shown in FIG. In some cases, the carrier d may be separated from the stopper b due to the reaction, and in this case, even if the positioning pin e is locked in the locking hole c, it is not completely locked. In other words, the processing position of the carrier d is shifted. If a workpiece (not shown) mounted on the carrier d is machined by a machine such as a welding machine in this state, machining accuracy is significantly reduced and machining is performed. In order to cause a defect, there is a problem that the work has to be reworked and the position adjusted frequently.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a positioning device for a transport vehicle that can surely stop the transport vehicle at a processing position where it comes into contact with a stopper without displacement. To provide.

[0005]

According to the present invention, there is provided a positioning apparatus for a transport vehicle, wherein the transport vehicle is provided so as to be able to travel along a transport path at a predetermined processing position. In the processing position, there is provided a stopper that abuts on the transport vehicle at the processing position to stop the travel of the transport vehicle, while the transport vehicle has
A positioning pin which is detachable from a locking hole provided on the side of the transport path at the processing position, and a pulling means for pulling the transport carriage toward the stopper side and forcibly contacting the stopper is provided. It is.

[0006]

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

FIG. 1 shows a configuration of a positioning device for a transport vehicle according to the present invention.

In FIG. 1, reference numeral 1 denotes a transport carriage provided so as to be able to travel along a transport path 11. This carrier 1
A work (not shown) is placed on the upper surface of the
By traveling along 1, the work is transported to a processing position X where the work is processed by a processing device such as a welding machine, and is configured to be positioned at the processing position X by the positioning device 2 and stopped.

The positioning device 2 comprises a stopper 21 provided on the transport path 11, a positioning pin 23 provided on the transport vehicle 1, and a clamp cylinder 25 provided as a drawing means provided on the transport vehicle 1. ing.

The stopper 21 stops the carrier 1 when the carrier 1 reaches the processing position X when its tip 21a contacts the contact member 12 provided on the carrier 1. And is provided on a mounting member 22 erected on the transport path 11.

The positioning pin 23 is provided on the contact member 12 of the carriage 1 and is configured to be vertically expandable and contractible by a telescopic cylinder 24. This positioning pin 2
3 at the processing position X,
1 is detachably engaged with a locking hole 13 provided in the bracket 1.
That is, by extending the positioning pin 23 downward by the telescopic cylinder 24, the tip 23 of the positioning pin 23 is
a can protrude into the locking hole 13 to be in the locked state, and from this state, the positioning pin 23 is retracted upward to release from the locking hole 13 and release the locked state. Can be.

As shown in FIGS. 1 and 2, the clamp cylinder 25 includes a telescopic cylinder 26 provided on the carriage 1 and a clamp part 27 provided on a telescopic rod 26a of the telescopic cylinder 26. I have. The clamp portion 27 has a proximal end portion 27a that is connected to the telescopic rod 26a.
Is provided in a hook-like shape so as to be substantially orthogonal to the axis of the telescopic rod 26a.

On the other hand, a contact plate 14 is provided upright at a processing position X of the transport path 11, and the clamp portion 2 is provided on one side of the contact plate 14 on the side of the stopper 21.
The distal end 27b of the rod 7 comes into contact with the retractable operation of the telescopic rod 26a.

The clamp portion 27 is provided with a telescopic rod 26.
Due to the rotation about the axis of a, the tip portion 27b hangs down as shown in FIG. 1 and rotates to a contact position where it can contact the contact plate 14 and a horizontal position as shown in FIG. The distal end portion 27b is arranged at a retracted position where the distal end portion 27b retracts from the contact plate 14.

Next, a description will be given of the positioning operation of the thus configured transport vehicle by the positioning device.

The transport carriage 1 is moved along the transport path 11 to a processing position X shown in FIG. 1 (from right to left in FIG. 1). At this time, the clamp portion 27 has its tip portion 27b
It is arranged at the retracted position in order to avoid interference with the contact plate 14.

When the transport vehicle 1 reaches a position just before the processing position X, the traveling speed of the transport vehicle 1 is reduced and the processing position X is reduced.
, The contact member 12 of the transport vehicle 1 abuts against the stopper 21 to stop the travel of the transport vehicle 1, and at the same time, the positioning pin 23 extends downward and protrudes into the locking hole 13 to be locked. .

At this time, the extensible cylinder 26 is retracted after the clamp 27 rotates from the retracted position shown by the solid line in FIG. 2 to the contact position shown by the two-dot chain line in FIG. The portion 27b contacts one side surface of the contact plate 14 on the stopper 21 side. Then, as the telescopic cylinder 26 further contracts, the carriage 1 is drawn toward the stopper 21 by the contact of the contact plate 14 with the clamp 27.

Accordingly, at the processing position X, the carriage 1 is brought into a state where the contact member 12 is in tight contact with the stopper 21 as shown in FIG. Even if 12 is separated from the stopper 21, it is arranged at an appropriate position by the action of the clamp portion 27, and the positioning pin 23 is always locked in the locking hole 13 in an appropriate state.

As a result, the carrier 1 can be reliably stopped at the machining position X without displacement, and the work placed on the carrier 1 can be favorably machined by a machine such as a welding machine.

[0021]

As described above, according to the present invention, when the carrier has reached the processing position, the carrier is pulled toward the stopper by the pulling means, and is forcibly brought into contact with the carrier. The pin can be locked in the locking hole in an appropriate state, and the carrier can be reliably stopped at the processing position without displacement. As a result, the work placed on the carrier can be satisfactorily processed by a processing device such as a welding machine.

[Brief description of the drawings]

FIG. 1 is a side view showing a configuration of a positioning device for a carriage according to the present invention.

FIG. 2 is a perspective view showing a configuration of a clamp cylinder.

FIG. 3 is a side view illustrating a configuration of a conventional positioning device for a transport vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveying cart 11 Conveying path 13 Locking hole 2 Positioning device 21 Stopper 23 Positioning pin 25 Clamp cylinder (pulling means)

Claims (1)

[Claims] An apparatus for positioning a carriage provided at a predetermined processing position on a carriage provided so as to be able to travel along a transportation path, wherein the carriage is in contact with the carriage at the processing position at the processing position. A stopper for stopping the traveling of the transport vehicle is provided.On the other hand, the transport vehicle is provided with a positioning pin that is detachable from a locking hole provided on the transport path side at a processing position, and the transport vehicle is mounted on the transport vehicle. 2. A positioning device for a transport trolley, wherein a pulling means is provided for pulling toward a stopper and forcibly contacting the stopper.