JPH04291800A - Board positioning device - Google Patents

Abstract

PURPOSE:To make it possible to easily position a board even if any plane of front end face or rear end face of the board is used as a reference. CONSTITUTION:A slide pin 7 is provided between a front pin 5 and a rear pin 6 that mate with a pin holes 3, 4 formed on the front and rear corner sections of the board 1. Adjusting the position so that the distance between the front pin 5 and the rear pin 6 and this slide pin 7 is the same as the distance between the pin hole 3 and the pin hole 4 makes it possible to position the board 1, even when any plane of the front end face or rear end face of the board 1 is used as a reference.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a substrate positioning device, which allows the substrate to be easily positioned using the front and rear end surfaces of the substrate as reference surfaces.

0002

2. Description of the Related Art When electronic components are mounted on a board using an electronic component mounting apparatus, the board is positioned at a predetermined position.

[0003] A positioning device is generally configured with pins set up below a conveyor that transports the board, and when the board is transported to a predetermined position, it lowers the board or raises the pin. Then, the pins are inserted into pin holes formed in the substrate to position the substrate.

Generally, a circular pin hole and an elongated pin hole are formed in the front and rear corners of a substrate. Correspondingly, two pins are provided at intervals, and one pin fits into a circular pin hole to position the board in the X and Y directions, and the other pin positions the board in the XY direction. By fitting into the elongated pin hole, the substrate is positioned in the rotational direction.

[0005]

[Problem to be Solved by the Invention] When electronic components are mounted on both the front and back sides of a board, the electronic components are first mounted on the front side of the board, and then the board is turned over.
Electronic components are mounted on the back side of the board.

In this case, first, the front end surface of the board is used as a reference surface, the board is positioned, electronic components are mounted on the surface of the board, and then the board is turned over, and the rear end surface of the board is set as the reference surface. After positioning the board, electronic components are mounted on the back side of the board.

[0007] When the reference plane for positioning the substrate changes as described above, the position of the pins is adjusted accordingly. However, in the conventional device, the positioning and adjustment of the pins is extremely troublesome and requires a great deal of effort and time.

SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus that can easily and quickly position a substrate using either the front end surface or the rear end surface of the substrate as a reference surface.

[0009]

[Means for Solving the Problems] The present invention provides a front pin and a rear pin that are located below a conveyor that conveys a board and fit into pin holes formed at the front and rear corners of the board, and the front pin and the rear pin. a slide pin that is located between them and slides in the conveying direction of the board; a first stopper that is located in front of the front pin and positions the front end surface of the board; and a first stopper that is located behind the rear pin and positions the rear end surface of the board. A substrate positioning device is constituted by the second stopper and the second stopper.

0010

[Operation] In the above structure, when positioning the board using the front end surface of the board as a reference plane, the board conveyed by the conveyor is stopped by the first stopper,
Next, by moving the substrate up and down relative to the pins, the pins are fitted into the pin holes and the substrate is positioned.

Furthermore, when positioning the substrate using the rear end surface of the substrate as a reference surface, the substrate conveyed by the conveyor is stopped by the first stopper, and then the conveyor is reversed to move the substrate backward. The substrate is fed backwards and the rear end surface of the substrate is stopped by a second stopper. Then, by raising and lowering the board relative to the pins,
Insert the pin into the pin hole to position the board.

0012

Embodiments Next, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1(a) and 1(b) are a plan view and a side view when positioning a substrate using the front end surface of the substrate as a reference plane. In the figure, 1 is a substrate, which is conveyed by a conveyor 2.

A circular pin hole 3 is formed at the corner of the front end of the substrate 1, and an elongated pin hole 4 is formed at the corner of the rear end.

[0015] Below the conveyor 2, front pins 5 and rear pins 6 are provided upright at intervals in the direction of conveyance of the substrates 1. The front pin 5 and the rear pin 6 are fixed pins that fit into the pin hole 3 to position the substrate 1 in the X and Y directions, as will be described in detail later.

A slide pin 7 is provided on the rail 9 via a slider 8. This slide pin 7 is located between the front pin 5 and the rear pin 6, and is located on the substrate 1.
slides in the transport direction. Reference numeral 10 denotes a fixing screw, and by manually sliding the slide pin 7 to a predetermined position and screwing in the screw 10, the slide pin 7 is fixed at the predetermined position. As will be described in detail later, this slide pin 7 is fitted into the elongated pin hole 4 to position the substrate 1 in the rotational direction.

Reference numeral 11 denotes a cylinder as a first stopper, which is disposed in front of the front pin 5, and when its rod 12 protrudes, the front end surface of the substrate 1 conveyed to the conveyor 2 is stopped. At this point, the board 1 is stopped.

Reference numeral 13 denotes a cylinder as a second stopper, which is erected behind the rear pin 6. With the rod 14 retracted, the conveyor 2 is moved as described above.
When the substrate 1 that has been conveyed hits the rod 12 and stops, then the rod 14 protrudes, and then the conveyor 2 reverses and the substrate 1 is conveyed backward, the rear end surface of the substrate 1 hits the rod 14 and stops. do.

The present apparatus has the above-mentioned configuration, and its operation will be explained next. First, with reference to FIG. 1, a case will be described in which a substrate is positioned using the front end surface of the substrate as a reference plane. In this case, the rod 14 is moved downward and the rod 1
2 protrudes upward. Further, the position of the slide pin 7 is adjusted in advance so that the distance between the slide pin 7 and the front pin 5 is equal to the distance between the pin hole 3 and the pin hole 4.

Now, when the substrate 1 is conveyed to the right by the conveyor 2, the front end surface of the substrate 1 hits the rod 12, and the substrate 1 is stopped. Next, when the board 1 is lowered, the front pin 5 is fitted into the pin hole 3, and the slide pin 7 is fitted into the pin hole 4, thereby positioning the board 1. In this case, the front pin 5 and the slide pin 7 may be fitted into the pin holes 3 and 4 by raising the front pin 5 and the slide pin 7. The means for raising and lowering the board 1, the front pin 5, and the slide pin 7 are well-known means, and the detailed explanation thereof will be omitted since the explanation will be complicated.

FIG. 2 shows a case where the substrate 1 is turned over and then positioned using the rear end surface as a reference surface.
A long pin hole 4 is located on the front side. In this case, the rod 14 is withdrawn, the rod 12 is made to protrude, and the slide pin 7 is slid to make the distance between the rear pin 6 and the slide pin 7 equal to the distance between the pin holes 3 and 4. In this state, the substrate 1 is transported to the right and stopped by the rod 12 (see the chain line in FIG. 2(b)).

Next, after protruding the rod 14, the conveyor 2 is reversed, and the substrate 1 is conveyed backward.
The rear end surface of the substrate 1 is brought into contact with the rod 14, and the substrate 1 is stopped. Next, the substrate 1 is lowered, and the rear pin 6 and the slide pin 7 are fitted into the pin holes 3 and 4 to position the substrate 1. As described above, according to the present apparatus, the substrate 1 can be easily and quickly positioned regardless of whether the front end surface or the rear end surface of the substrate 1 is used as the reference surface.

[0023]

As explained above, the present invention provides a front pin and a rear pin that are located below a conveyor for conveying substrates and fit into pin holes formed in the front and rear corners of the substrate, and A slide pin that is located between the pins and slides in the conveyance direction of the board; a first stopper that is located in front of the front pin and positions the front end surface of the board; and a first stopper that is located behind the rear pin that positions the rear end surface of the board. Since the substrate positioning device is constituted by the second positioning stopper, the substrate can be easily and quickly positioned regardless of whether the front end surface or the rear end surface of the substrate is used as a reference surface.

[Brief explanation of the drawing]

[Figure 1] (a) is a plan view while positioning the board (b) is a side view while positioning the board

[Figure 2] (a) is a plan view while positioning the board (b) is a side view while positioning the board

[Explanation of symbols]

1 Board 2 Conveyor 3 Pin hole 4 Pin hole 5 Front pin 6 Rear pin 7 Slide pin 11 Cylinder 13 Cylinder

Claims (1)

[Claims] Claim 1: Located below a conveyor that conveys substrates,
A front pin and a rear pin that fit into pin holes formed in the front and rear corners of the board, a slide pin that is located between the front pin and the rear pin and slides in the transport direction of the board, and a slide pin that is located in front of the front pin and that slides in the board transport direction. A substrate positioning device comprising: a first stopper for positioning the front end surface of the substrate; and a second stopper located behind the rear pin for positioning the rear end surface of the substrate.