JPS629186Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a positioning device for a transport machine that stops an object to be transported at a predetermined position on a transport line.

When stopping a conveyed object such as a car body at a predetermined position at each station on a conveyance line,
Various positioning means can be employed. For example, see Utility Model Publication No. 54-39267. However, in the case of such a conveyance type device, a stopper operated by a driving means must be provided at the position where the hanger is to be stopped along the entire conveyance line, and furthermore, the reaction force when the hanger comes into contact with the stopper is There was a problem where the hanger was misaligned from the set position.

The present invention was developed in view of this problem, and includes a stopper arranged at a predetermined position along the conveyance line, and a positioning lever extending outward from the stopper when engaged with the stopper, which can be rotated by the conveyor. It is an object of the present invention to provide a positioning device for a conveying machine which is pivotally connected to the conveyor and can be positioned at a predetermined position by engagement between the two, even when the conveyor moves far back and forth from a predetermined position.

Hereinafter, one embodiment of the device of the present invention will be described in detail.

Reference numeral 1 denotes a positioning device for the conveyor 2, which includes stoppers 3a, 3b, a positioning lever 4, and lever driving means 5 as main components.

The frame 7 of the conveyor 2 is mounted on rails 6, 6 such as I-shaped steel arranged along the conveyance line (arrow F) via running rollers 8, 8..., 9, 9... The traveling rollers are connected to a roller drive means 10 such as a motor with a speed reducer fixed to the frame 7 via chain transmission mechanisms 11, 11, . . . , an intermediate shaft 12, and a chain transmission mechanism 13. Each chain transmission mechanism has sprocket 1.
4, 15 and an endless chain 18, and sprockets 16, 17 and an endless chain 19 are combined.

The stoppers 3a and 3b are formed in the shape of rollers, and are arranged at a constant interval D in a direction perpendicular to the transport direction on the transport line F and at a reference position B corresponding to a predetermined position A at which the transport machine 2 is to be stopped. A beam 20 is installed on the upper end surface of the rails 6, 6.
It is rotatably supported on suspension shafts 21, 21 of.

The positioning lever 4 has a rotation center axis 2 on a straight line 22 in the conveying direction passing through the midpoint between the stoppers 3a and 3b.
3, and its entire length is formed to a length L extending outward from the distance D between the stoppers 3a and 3b, and the sliding surface 2 slides in contact with both the stoppers on its side surface.
4a and 24b are formed symmetrically with respect to the rotation center axis 23, and the rotation center axis is the frame 7 of the conveyor.
It is rotatably supported by a bracket 25 fixedly attached to the bracket 25.

The lever drive means 5 has a piston rod 28 of a cylinder 27 pivotally attached to the distal end of an arm 26 fixed to an intermediate portion of the rotation center shaft 23, and a base end of the cylinder pivoted to a bracket 29 provided on the frame 7. It was supported. 30 and 31 are adjustment screws,
32, which are provided on the bracket 25 to regulate the positions of both ends when the positioning lever 4 rotates;
32 are guide rollers provided on the frame 7 so as to come into contact with both ends of the rail 6.

35, 35, 36, 36 are hanging nails, hanging frame 3
It is operated by cylinders 38, 38, 39, 39 provided at 7. 40 is a telescopic mechanism, and frame 7
and the outer guide rail 41 on the hanging frame 37, respectively.
41 and inner guide rails 42, 42 are provided,
Both guide rails are inner guide rails 42, 42.
They are held in parallel by clamping members 43, 43, . . . that are fixed to them. Reference numeral 44 denotes a telescoping cylinder whose both ends are connected to the frame 7 and the hanging frame 37, and by driving the telescoping cylinder forward and backward, the height of the object W to be transported such as a car body is adjusted from the floor. 4
5 is a roller, and 46 and 47 are stays.

Next, the operation of the device of the present invention will be explained.

The positioning lever 4 was positioned in advance at the release position (dashed line in Figure 1), and the roller drive means 10 of the conveyor 2 was activated to run on the rails 6 and stop at a position near the predetermined position A. Thereafter, the cylinder 27 of the lever driving means 5 is driven forward to rotate the positioning lever 4 counterclockwise.

When the conveyor 2 is in the forward position with respect to the predetermined position A, the sliding surface 24a of the positioning lever 4 comes into contact with the stopper 3a, and the rotation of the positioning lever causes the conveyor 2 to retreat to the predetermined position A. Furthermore, when the conveyor 2 is in the backward position with respect to the predetermined position A, the sliding surface 24b comes into contact with the stopper 3b and the conveyor 2 is moved to the predetermined position A by the same operation as described above.
advance until.

Note that the position adjustment range of the carrier 2 with respect to the predetermined position A is limited to each sliding surface 24a, 24 of the positioning lever 4 as long as the positioning lever 4 does not interfere with other structures.
It can be enlarged by extending b toward the outside of the stoppers 3a and 3b, respectively.

With the above configuration, the length of the positioning lever, which has long sliding surfaces, is longer than the spacing between the two stoppers, so that even if the conveyor moves far away from the predetermined position, the positioning lever can be reliably attached to the stopper. By making it engageable, the conveyor can be stopped at an accurate position without requiring any skill, which has the excellent effect of significantly improving the workability of each station on the conveyance line.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the apparatus of the present invention, and FIG. 1 is a plan view of the conveying machine, FIG. 2 is a right side view thereof, and FIG. 3 is a front view thereof. 1...Positioning device, 2...Transport machine, 3a, 3
b... Stopper, 4... Positioning lever, 5...
Lever driving means, 22...Line line, 23...Rotation center axis, 24a, 24b...Sliding surface, A...Predetermined position, D...Distance, F...Transportation line, L...Length.

Claims (1)

[Scope of utility model registration request] A conveyance machine movable along a conveyance line is stopped at a predetermined position, and two stoppers are arranged on the conveyance line at a constant interval in a direction perpendicular to the conveyance direction, and a midpoint between the two stoppers is arranged. A positioning lever having a center of rotation on a straight line in the conveying direction passing through the conveyor and having a length greater than the distance between the two stoppers is rotatably attached to the conveyor, and the positioning lever is in contact with the stopper on its side surface. A sliding surface on which the positioning lever slides is formed symmetrically with respect to the center of rotation, and a driving means for rotating the positioning lever is connected, so that when the positioning lever is located between both stoppers, the positioning lever rotates. A positioning device for a transport machine, characterized in that the position of the transport machine is adjusted and stopped at a predetermined position.