JPH04359600A - Printed board positioning device for mounting machine - Google Patents

Abstract

PURPOSE:To provide a printed board positioning device for a mounting machine, which can cope with a printed board of arbitrary size even if the size of the board is varied and in which no interference between a support pin and a board holding rail even if a driver is vertically moved. CONSTITUTION:Board holding rails 13a, 13b for holding both ends of a printed board 1, a support pin 3 for deciding the height of the board 1, a support pin holder 10 mounted with the pin 3, a driver 5 for vertically moving the holder 10, etc., are provided. The holder 10 is stretchably secured at both ends to the rails 13a, 13b, which are slid in response to the width of the board 1, and the pin 3 is positioned between the rails 13a and 13b.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed circuit board positioning device for a mounting machine that produces printed circuit boards.

0002

2. Description of the Related Art Conventionally, a printed circuit board positioning device for a mounting machine of this type has a configuration as shown in FIGS. 4 and 5. As shown in the figure, the board holding rails 2, 2 that support both ends of the printed circuit board 1, the support pins 3 that determine the height of the printed circuit board 1, the support pin holder 4 to which the support pins 3 are attached, and the support pin holder 4. It is composed of a drive unit 5 that moves up and down. Further, a large number of holes 6 for attaching the support pins 3 are formed in the flat support pin holding portion 4 . When changing the printed circuit board 1 to be produced,
Depending on the external dimensions of the printed circuit board 1, the board holding rails 2,
The support pin 3 is manually placed in an arbitrary hole 6 located between the two.

0003

[Problems to be Solved by the Invention] However, in the above-mentioned conventional configuration, when the size of the printed circuit board 1 changes, if the support pins 3 have to be replaced, the drive unit 5 has to move the support pins 3
When the support pin 1 is raised, the support pin 1 may collide with the repositioned holding rail 2, and if this action is performed incorrectly, the support pin 3 and the holding rail 2 may be damaged.

The present invention solves the above-mentioned conventional problems, and provides printed circuit board positioning in a mounting machine that can accommodate any size of printed circuit board even if the size of the printed circuit board changes, and that prevents interference between support pins and board holding rails. The purpose is to provide equipment.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention includes board holding rails that hold both ends of a printed circuit board, support pins that determine the height of the printed circuit board, and a support pin that determines the height of the printed circuit board.
It includes a support pin holder to which the support pin is attached, and a drive unit that moves the support pin holder up and down, and the support pin holder is extendable and has both ends fixed to the board holding rail. are doing.

[0006]

[Function] In the above configuration, both ends of the support pin holder are fixed to the board holding rails and are expandable and retractable, so even if the outer diameter of the printed circuit board changes, the support pin holder can be moved by moving the board holding rails. The dimensions change, the support pins are always located between the substrate holding rails, and the support pins and the substrate holding rails do not interfere even if the drive unit is moved up or down.

[0007]

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In this embodiment, the same components as those shown in the above-mentioned conventional example are given the same reference numerals, and the explanation thereof will be omitted. The characteristic structure of this embodiment is that the support pin holding portion shown in the conventional example is made expandable and retractable. That is, the support pin holding portion 10 has a bellows-type link structure. The drive unit 5 has a plurality of shafts A.
11 is attached, and a plurality of shafts B12 are attached to the fixed side board holding rail 13a and the movable side board holding rail 13b. The support pin 3 is attached to a hole 14 provided on the support pin holder 10 or a position that also serves as a link pin 15.

To explain the operation in the above configuration, first, when the printed circuit board 1 is conveyed between the board holding rails 13a and 13b, the drive section 5 moves the support pin holding section 10.
Then, the support pin 3 is lifted, and the height of the printed circuit board 1 is raised by the support pin 3 and the board holding rails 13a, 13b. When the size of the printed circuit board 1 changes, even if the holding rail 13b on the board movable side moves, the support pin holding part 10 is always located between the holding rails 13a and 13b, as shown in FIG. 2(b). So there will be no interference.

Furthermore, even if the distance between the two holding rails 13a and 13b becomes narrow as shown in FIG. There is no need to drill a large number of pin holding holes at the required hole pitch for the smallest board as in the past.

Although the support pin holding portion 10 is a bellows type link mechanism, as shown in 3(a) and (b),
Similar effects can be obtained even if a large number of leaf springs 16 are joined together, a plurality of support pin holding parts 17 are provided thereon, and the support pins 3 are attached.

[0011]

Effects of the Invention As is clear from the above embodiments, the printed circuit board positioning device for the mounting machine of the present invention has a circuit board holding rail that holds both ends of the printed circuit board, a support pin that determines the height of the printed circuit board, and a support pin that determines the height of the printed circuit board. The device includes a support pin holder to which a pin is attached, and a drive unit that moves the support pin holder up and down, and the support pin holder is extendable and has both ends fixed to the substrate holder. With this configuration, even if the size of the printed circuit board changes, the dimensions between the support pin holding rails will change according to the width, so it can accommodate any size printed circuit board, and the support pins will always hold the board. Because it is located between the rails,
Even when the drive unit is moved up and down, the support pins and board holding rails do not interfere, and switching between printed boards can be automated.

[Brief explanation of drawings]

FIG. 1 is a side view of a printed circuit board positioning device of a mounting machine in an embodiment of the present invention.

[Figure 2] (a), (b) Plan views of the support pin holder of the printed circuit board positioning device

FIG. 3: (a) A plan view of a support pin holder of another embodiment; (b) A perspective view of a leaf spring of the support pin holder of the same embodiment;

[Figure 4] Side view of a printed circuit board positioning device of a conventional mounting machine

[Fig. 5] Plan view of the support pin holding part of the printed circuit board positioning device

[Explanation of symbols]

1 Printed circuit board 3 Support pin 5 Drive part 10 Support pin holding part 13a, 13b Board holding rail

Claims (1)

[Claims] 1. Board holding rails that hold both ends of a printed circuit board, support pins that determine the height of the printed circuit board, a support pin holder to which the support pins are attached, and a drive that moves the support pin holder up and down. A printed circuit board positioning device for a mounting machine, wherein the support pin holding section is expandable and retractable, and both ends thereof are fixed to the board holding rail.