JPS6312517A - Parts locating mechanism - Google Patents

Abstract

PURPOSE:To have precise location of parts by performing pressing of parts placed on a pallet through a roller at the foremost end of two pressing mechanisms arranged perpendicularly using a locational station at the end of a conveyor. CONSTITUTION:When a pallet 2 for placing of each box-shaped item of parts 1 is transported and placed on a support mechanism of a locational station, an X-direction pressing mechanism 6 rises to the position mating with said box-shaped item 1, and a horizontal motion cylinder 610 is driven to allow the foremost piece 614 to press the item 1 in the X direction through a bearing 615. At the same time, a cylinder 72 of a Y-direction pressing mechanism 7 is driven, and a piece 74 presses in the Y direction through a bearing situated at the foremost. Collision with bearings 81, 91 of the X and Y direction stoppers 8, 9 provides locations in the X and Y directions. Thus high precision location can be made easily, wherein production of flaws etc. caused by the bearing 615 etc. is prevented, and accordingly an uncostly pallet 2 can be used.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a component positioning mechanism, and in particular, since it is impossible to position a product such as a plate-shaped pallet on which a box-shaped component is mounted, the present invention relates to a component positioning mechanism. The present invention relates to a box-shaped component positioning mechanism suitable for highly accurate positioning.

4LJi liquid carrier [Kyoukai Kidryu] In the conventional positioning mechanism when a product is mounted on a pallet, there is a method for positioning the pallet as described in JP-A-60-102318, for example. Commonly used.

[Problem that the invention seeks to solve]

In the above-mentioned conventional technology, no consideration is given to the misalignment between the pallet and the parts on the pallet. Therefore, when it is necessary to position the parts with high precision, the positioning of the parts and the pallet must be done in advance. After this, it is common to position the pallet.

However, in this method, the positioning work is performed twice, which not only makes the positioning work troublesome and takes a lot of time, but also reduces the accuracy of positioning the parts and requires high-precision machining of the pallet, resulting in high costs. There is a risk that it will become.

Further, when automating a part of a manual process such as assembly work, the above-mentioned conventional technology has a problem in that work efficiency decreases.

Therefore, as a means to solve the problems of the prior art described above, the parts are directly conveyed by a conveyor, and when the positioning position is reached, a positioning mechanism installed between the conveyors is used to transport the parts on both the front and rear sides of the conveyor direction. One possible method is to position it so that it is sandwiched between the two.

However, with this method, even if it is possible to position the component in one direction, there is a problem in that it is not possible to position the component in the other direction perpendicular to this.

In particular, when automatically lifting or automatically processing a part that has reached the positioning position, the lifting mechanism and processing mechanism must be accurately positioned, but since this is not possible, the lifting Adding the work of accurately positioning the mechanism, processing mechanism, and parts, the same problems as those of the prior art described above occur.

SUMMARY OF THE INVENTION An object of the present invention is to provide a component positioning mechanism that solves the problems of the prior art described above and enables highly accurate positioning of components transported on inexpensive pallets in a short time.

[Means for solving problems]

The above object is to provide a positioning station at the end of a conveyor that conveys a pallet on which parts are loaded, a support mechanism that is rotatably supported by the positioning station and that movably places the pallet, and a support mechanism for movably mounting the pallet. The conveyor is pressed in two directions perpendicular to each other, and a bearing is supported on the part that faces the part, and one of the parts is disposed between the conveyors and protrudes from the top surface of the conveyor to face the part on the positioning station. a plurality of pressing mechanisms formed to be movable in the vertical direction to a position recessed downward from the upper surface; supporting a bearing on a component that is disposed at a position facing each of the plurality of pressing mechanisms and that abuts the component; This is achieved by providing a plurality of stopper mechanisms that position the parts when they come into contact with each other.

[Effect]

In the present invention, when a pallet on which parts are loaded is conveyed to the positioning stage by the conveyor with one of the pressing mechanisms lowered in advance to a position where it is recessed downward from the upper surface of the conveyor, the one pressing mechanism is moved downward. After rising to a position facing the part, one of the pressing mechanisms and the other pressing mechanism arranged perpendicularly to the one pressing mechanism push the part through a roller rotatably supported at its tip. Press in two directions perpendicular to each other.

At this time, the pallet on which the parts are mounted moves on the support mechanism following the parts, so the parts do not come off the pallet.

Thereafter, when the component is brought into contact with a roller of a stopper mechanism disposed at a position opposite to the pressing mechanism by the pressing mechanism, the component is positioned in two perpendicular directions.

Therefore, the present invention provides a component positioning stage 4.
- It is possible to easily and accurately position the parts in two perpendicular directions on the line, prevent scratches on the parts due to the bracket rollers, and do not position the parts via a pallet. Cheap pallets can be used.

〔Example〕

1 and 2 showing one embodiment of the present invention will be described below. FIG. 1 is a plan view of a box-shaped component positioning device according to an embodiment of the present invention, and FIG. 2 is a side view of FIG. 1.

In the figure, 1 is a box-shaped part, 2 is a flat plate-shaped pallet, and the box-shaped part 1 is placed on the upper surface without being fastened or fixed. ) is a frame that includes two side plates 31 arranged parallel to each other at intervals in the direction of conveyance of the box-shaped part 1, and arranged at right angles between the tips of these two side plates 31. the two side plates 31
an end plate 32 fixed to the end plate 32; a reinforcing plate 35 arranged parallel to the end plate 32 at intervals and having both ends fixed to the two side plates 51; two frame plates 64 which are arranged in parallel with each other and whose tips are connected to the end plate S2 via the support plate 55; and the two side plates 3.
1. It is formed of an end plate 32 and a bottom plate 36 that fixes the lower end of the reinforcing plate 33 into one body. Note that the position where the support plate 35 is installed corresponds to the positioning station A.

4 is a roller conveyor, which is long in the narrow direction, and whose both ends are rotatably supported by the two side plates 31;
It is formed of a drive roller 41 and a second drive roller 42 that is short in the axial direction and rotatably supported between the side plate S1 and the frame plate 54. Reference numeral 5 denotes a support portion, which is formed of a plurality of spherical bearings rotatably supported on the support plate 35. ,! ! , is an X-direction pressing mechanism, and is arranged between the two frame plates 34 and fixed to the horizontal plate 602 fixed on the bottom plate 36 via a support bar 601, and fixed to the lower surface of the center of this horizontal plate 602. a vertically movable cylinder 605, a vertically movable piston rod 604 that slides in the vertical direction within this vertically movable cylinder 603,
Fixed to the upper end of this vertically movable piston rod 604,
A support plate 607 that fixes a guide bar 606 that slides vertically in guide holes 605 at both ends of the horizontal plate 602.
and the guide plate 6 fixed on this support plate 607.
08 and a horizontally movable cylinder 610 whose both ends are supported by a support plate 609, and a direction perpendicular to the tip of a horizontally movable piston rod 611 that slides horizontally within this horizontally movable cylinder 610 (parallel to the guide plate 608). A connecting plate 612' fixed to the connecting plate 612', a push rod 613 horizontally fixed to the upper part of the connecting plate 612 and movably supported by the guide plate 608, and a push rod 613 fixed to the tip of the push rod 613 and attached to the tip surface. Piece 6 supporting bearing 615
14. L is an X-direction pressing mechanism, which includes a bracket 71 fixed to the upper part of the one side plate 31, and a horizontal movement cylinder 6 mounted on this bracket 71.
cylinder 72 fixed in a directional position perpendicular to 10;
and a piece 74 that is fixed to the tip of a piston rod 73 that slides horizontally within the cylinder 72 and rotatably supports a bearing ring (not shown) at the tip. . Reference numeral 8 designates an X-direction stopper, which is fixed to the upper part of the end plate 32 so as to face the piece 614 of the first pressing rock structure, and supports a bearing 81 on its tip surface. 9 is Y
Direction stopper and said! J2 pressing mechanism piece 75
It is fixed to the upper part of the other side plate 31 so as to face the other side plate 31, and supports a bearing 91 on the tip end surface. Reference numeral 10 denotes a transfer mechanism, which is arranged above the positioning station A, and includes a support plate 1001, a vertically movable cylinder 1002 fixed to the upper surface of the center part of this support plate 1001, and a vertically movable cylinder 1002 that moves vertically within the vertically movable cylinder 1002. A housing 1005 that is fixed to the tip of the sliding piston rod 100S and has a drive unit (not shown) installed therein that rotates two screw shafts 1004 that protrude in both left and right directions in opposite directions.
and screwing the upper parts onto the two screw shafts 1005, respectively,
It is formed from a claw 1006 whose lower end is bent inwardly to face each other.

The box-shaped component positioning device according to the present invention is as described in 8 above.
・ Since it is structured as follows, its operation will be explained next.

First, when the vertically movable cylinder 605 of the X-direction pressing mechanism is driven, the support plate 6 is moved through the vertically movable piston 04.
07 is lowered to the illustrated position, the piece 614 is retracted to a position below the upper surface of the second drive roller 42.

In this state, the pallet 2 on which the box-shaped parts 1 are mounted is conveyed by the rotation of the 'WIz1 drive roller 41 and the second drive roller 42 of the conveyor 4, and is placed on the support mechanism 5 on the positioning station A. Ru.

Note that the box-shaped component 1 at this time is shifted in position as shown in the figure.

Next, the vertical movement cylinder 603 of the X direction pressing mechanism
When driven in the opposite direction to the above case, the support plate 607 is raised from the illustrated position via the vertically movable piston 04 using the guide bar 606 and the guide hole 605 as guides.

After that, when the piece 614 rises to a position facing the box-shaped part 1, the vertical movement cylinder 605 stops driving and the horizontal movement cylinder 610 starts driving, so that the horizontal movement cylinder 610 is moved through the horizontal movement piston rod 611 and the connecting plate 612. The push rod 613 moves toward the box-shaped component 1 using the guide plate 608 as a guide, and the piece 614 at the tip of the push rod 613 moves to the side of the box-shaped component 1 using the guide plate 608 as a guide.
The box-shaped part 1 is pressed in the X direction via the box 15.

On the other hand, since the cylinder 72 of the Y-direction pressing mechanism 1 is driven at the same time as the horizontal movement cylinder 610 is driven, the piece 74 pushes the box-shaped part 1 in the Y-direction via the piston rod 73 and the bearing at its tip. wear.

Therefore, the box-shaped part 1 is pressed in two perpendicular directions by the two pieces 614 and 741m, and moves in the two X and Y directions while changing its posture.

At this time, since the pallet 2 is movably placed on the plurality of spherical bearings forming the support section 5, it moves on the support section 1, substantially following the movement of the box-shaped component 1.

Therefore, even if there is nothing to restrict the movement of the pallet 2, the box-shaped component 1 will not fall from the top surface thereof.

After that, the box-shaped part 1 is connected to the two X-direction stopper mechanisms 8.
When the box-shaped component 1 hits the bearing 81 of the Y-direction stopper mechanism 9 and the bearing 91 of the Y-direction stopper mechanism 9, the box-shaped component 1 is positioned in both the X and Y directions.

Next, the vertical movement cylinder 1 of the transfer mechanism, which has reached the upper position of the positioning station A and is on standby,
When 002 is driven, two pawls 1006 descend via piston rod 1003 and housing 1005.

Thereafter, when the lower ends of the two claws 1006 reach between the lower surface of the box-shaped component 1 and the upper surface of the support plate 35, the drive section in the housing 1005 is driven, and the two screw shafts 10
05, the lower ends of the two claws 1006 bite between the lower surface of the box-shaped component 1 and the upper surface of the support plate 35, and the box-shaped component 1
Because it engages with the lower corner of the vertically moving cylinder 100
After the box-shaped part 1 is lifted upward by driving the box-like part 2 in the opposite direction to the above case, it can be transported to a predetermined position.

, 11. Therefore, the box-shaped component 1 can be easily positioned on the positioning station A in both the X and Y directions with high precision.

In addition, although the above embodiment shows the case where the roller conveyor 4 is used to convey the box-shaped parts 1 and the pallet 2, the present invention is not limited to this, and for example, a belt conveyor may be used. is also possible.

Also, although the description is for a box-shaped part, it is not limited to this, and in short, it can be applied as long as the bottom surface is relatively flat and there are flat parts on each of the two sides in the perpendicular direction. Is possible.

〔Effect of the invention〕

According to the present invention, it is possible to easily automate the product positioning process using an inexpensive pallet in an assembly work process that is mainly done manually.

Furthermore, it is possible to position the product with high precision without directly damaging the product, which has a great practical effect.

・　12・

[Brief explanation of the drawing]

FIG. 1 is a plan view of a box-shaped component positioning device according to an embodiment of the present invention, and FIG. 2 is a side view of FIG. 1.

Claims (1)

[Claims] 1. A positioning station is provided at the end of the conveyor that conveys the pallet on which the parts are loaded, a support mechanism is rotatably supported by the positioning station, the pallet is movably placed thereon, and the product is placed at right angles to each other. A bearing is supported in a portion that presses in two directions and is in contact with the component, and one of the bearings is placed between the conveyors, protrudes from the top surface of the conveyor, and sinks below the top surface of the conveyor from a position facing the component. a pressing mechanism formed to be movable in the vertical direction to a position; a stopper mechanism disposed opposite to these pressing mechanisms, supporting a bearing at a portion that contacts the component, and positioning the bearing when the component comes into contact with the component; A component positioning mechanism characterized by being provided with.