JPH06334393A - Holding of printed board and device thereof - Google Patents

Abstract

PURPOSE:To provide a printed board holding device, by which the area of a place, where an electronic component can not be arranged, on a printed board is significantly reduced. CONSTITUTION:When a printed board 1 is carried by a belt 10, levers 12 are retreated from over the upper surface of the board 1. The board 1 is positioned by a regulating lever 17, pin parts 3 are made to ascend by a cylinder 7 and with the board 1 made to ascend, hangers 16 are respectively separated from rollers 14 and the levers 12 are moved from the retreated positions to positions, where the levers 12 can press the upper surface of the board 1, by the energization of springs 15. Accordingly, a place, where an electronic component can not be arranged, on the upper surface of the board 1 is limited only to places, where the levers 12 are arranged, and the area of the place can be significantly reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed board holding method and apparatus for holding a printed board when mounting an electronic component on the printed board.

[0002]

2. Description of the Related Art Conventionally, an electronic component mounting apparatus having a printed circuit board holding device is as shown in FIG.

That is, the electronic component 102 is taken out from the electronic component supply unit 103 by the nozzle 101, and the carrier rail 104 is used.
It is mounted on the surface of the printed circuit board 105 in a state where it is carried to a predetermined position by and held by the holding device 106.

Among these devices, the printed circuit board holding device has conventionally been as shown in FIG. The roller 107 attached to the transport rail 104 rotates, and the belt 108 drives to carry the printed circuit board 105 to a predetermined position.

Then, the printed circuit board is positioned by the lever 115 driven by the cylinder 114.

A plate 110 is fixed to a tip of a piston shaft of a cylinder 109 fixed to the mounting device by a nut. The plate 110 is guided by a shaft 111 fixed to the mounting device so as to be vertically movable via a bearing 112. Has been done. Further, the plate 110 has support pins 113 that can be freely attached and detached, and when air is sent to the cylinder 109 to raise the plate 110, the support pins 113 contact the lower surface of the printed circuit board 105, and the upper surface of the printed circuit board 105 is conveyed. Rail 104
The printed circuit board support is completed in a state of being in contact with the A surface.

[0007]

However, in the above-mentioned structure, the electronic component cannot be arranged at a position on the upper surface of the printed circuit board 105 which comes into contact with the surface A of the transport rail 104. Therefore, in a printed circuit board in which electronic parts are highly densified, there is a position where electronic parts cannot be placed, which is about 3 to 4 mm in contact with the transport rail.

In view of the above problems, it is another object of the present invention to significantly reduce the area where electronic parts cannot be placed on a printed circuit board.

[0009]

In order to solve the above-mentioned problems, a printed circuit board holding device of the present invention positions a carrying section capable of carrying a printed board and a printed board carried by this carrying section. A positioning part, a pin part for supporting the printed circuit board from the lower surface, and a position for separating the printed circuit board positioned by the positioning part from the carrying part and for sandwiching the printed circuit board with the pin part; It is characterized by comprising a movable pressing portion.

[0010]

According to the present invention, since the pressing portion for pressing the upper surface of the printed circuit board moves to the upper surface of the printed circuit board only when the printed circuit board is supported from the lower surface, the electronic component can be arranged on the conventional printed circuit board. The electronic parts can be arranged on most of the both ends that were not provided, and the adaptability can be improved to increase the density of the electronic parts.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A printed circuit board holding device according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a detailed view of an embodiment of the present invention of the printed circuit board holding device 106 in the perspective view of the electronic component mounting apparatus of FIG.

Reference numeral 1 is a printed circuit board, 2 is an electronic component, 3 is a pin portion for supporting the printed circuit board from the lower surface, 4 is a plate for detachably fixing the pin portion 3, and 5 is a shaft fixed below the printed circuit board 1. , 6 are shaft 5 and plate 4
Bearings to fix the slides up and down, 7 is plate 4
Cylinder for driving up and down, 8 is rail, 9A, 9B
Is a belt roller 10 attached to the rail 8 so as to be rotatable, a belt that conveys the printed circuit board 1, 11 is a block that can be fixed to the rail 8 with bolts 20 so as to be movable in the X direction, 12 is a block 11 through a pin 13 Lever rotatably attached to the lever, 14 is a roller attached to the lever 12, and 15 is a lever fixed to the block 11
A spring for urging 2; a hanger 16 fixed to the plate 4 to drive the roller 14; 17 a train wheel setting lever for setting the printed circuit board 1; 18 a cylinder for driving the train setting lever; It is a motor.

The operation will be described below. The printed circuit board 1 is conveyed by the belt 10 attached to the belt rollers 9A and 9B which are rotated by the drive of the motor 19, and is set in a predetermined position by the setting lever 17 which moves up and down by the cylinder 18. Next, by driving the cylinder 4, the pin portion 3 of the printed circuit board 1 is lifted from the lower surface, and the printed circuit board 1 is lifted and separated from the belt 10. At the same time, when the hanger 16 is separated from the roller 14, the lever 12 is biased by the force of the spring 15 so that the tip of the lever 12 projects above the printed circuit board 1 from the rail 8.

When the cylinder 4 is driven, the upper surface of the printed board 1 is pressed against the lever 12 to complete the fixing of the printed board 1.

The electronic component 2 is mounted on the upper surface of the printed board 1 as shown in FIG.

[0017]

As described above, according to the present invention, the carrying section capable of carrying the printed circuit board, the positioning section for positioning the printed circuit board carried by the carrying section, and the pin section for supporting the printed circuit board from the lower surface are positioned. A printed circuit board positioned by a section is separated from the carrying section, and the printed circuit board is composed of a pressing section that can move between a position where the printed circuit board can be held by the pin section and a retracted position. The place where electronic parts cannot be arranged on the printed circuit board can be greatly reduced.

[Brief description of drawings]

FIG. 1A is a detailed cross-sectional side view of a printed circuit board holding device showing an embodiment of the present invention, and FIG.

FIG. 2 is a perspective view showing an example of an electronic component mounting device provided with a printed circuit board holding device.

FIG. 3A is a detailed cross-sectional side view of a conventional printed circuit board holding device. FIG. 3B is the same front view.

[Explanation of symbols]

 1 Printed circuit board 3 Pin part 12 Lever 14 Roller 16 Hanger 17 Trainer lever

Claims (5)

[Claims] 1. A first transporting unit for transporting a printed circuit board
A second step of stopping the step and the conveyed printed circuit board;
It is characterized by comprising a third step of supporting the printed circuit board from the lower surface and lifting it from the carrying section, and a fourth step of moving the pressing section that can come into contact with the predetermined position of the lifted printed circuit board from the retracted position to the predetermined position. And a printed circuit board holding method. 2. A carrying unit capable of carrying a printed circuit board, a positioning unit for positioning the printed circuit board carried by the carrying unit, a pin unit for supporting the printed circuit board from the lower surface, and a printed circuit board positioned by the positioning unit. A printed circuit board holding device comprising: a pressing part which is separated from the carrying part and is movable between a position where the printed circuit board can be held by the pin part and a retracted position. 3. The printed circuit board holding device according to claim 2, wherein the driving of the pressing portion is the same as the driving of the holding portion that holds the pin portion so as to be vertically movable. 4. The printed circuit board holding device according to claim 2, wherein a position where the pressing part presses the printed circuit board can be selected at an arbitrary position of an end part of the printed circuit board. 5. The pin portion and the holding portion are integrally fixed, and the pressing portion is constituted by a lever that can be swung about one point by the vertical movement of the holding portion.
The printed circuit board holding device described.