JP2000232300A - Device and method for positioning-fixing of printed wiring board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device and method for positioning-fixing of a printed wiring board, where a printed wiring board can be surely prevented from shifting in a horizontal direction or floating or moving in a vertical direction when the wiring board is subjected to a prescribed treatment. SOLUTION: A printed wiring board positioning-fixing device is equipped with a fixing table 20 which is provided with two positioning stepped parts 21 and 22 and where a quadrilateral printed wiring board P is placed, allowing its two sides to butt against the stepped sides 21 and 22, a horizontal positioning member 26 which is possessed of a pressing part 26a that butts against the corner C between the other two sides of the printed wiring board P and provided on the fixing table 20 so as to freely approach or part from the corner C, and a board vertical pressing plate 35 which is provided with a working hole 35a and provided to be movable in a vertical direction so as to enable its undersurface to come into contact with or to separate from the top surface of the printed wiring board P.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device and method for positioning and fixing a printed wiring board, for example, used in a resin feeder for applying a resin adhesive to a predetermined position on the printed wiring board.

[0002]

2. Description of the Related Art As a conventional method for positioning and fixing a printed wiring board, for example, as shown in FIG. 5, two sides of a printed wiring board P are brought into contact with positioning steps 53 and 54 on two sides of a fixed table 50. At the same time as positioning, the lower surface of the printed wiring board P is opened in the support surface 56 of the fixed table 50, an air passage 60 formed in the thickness of the fixed table 50 in communication with the opening 58, and a hose 62,
There is a method of adsorbing and fixing by negative pressure suction by a vacuum pump (not shown).

As another conventional method of positioning and fixing a printed wiring board, as shown in FIG. 6, two sides of a printed wiring board P are brought into contact with positioning steps 72 and 73 on two sides of a fixed table 70. In addition to the positioning, the corner C ′ on the opposite side of the butting corner C of the printed wiring board P is
There is a method of pressing and fixing with a pressing coil spring 77 via a pressing member 75.

[0004]

However, the former method of positioning and fixing a printed wiring board (FIG.
), The final fixing force is only the negative pressure suction force by the vacuum pump, so that the position of the printed wiring board P may be shifted due to unintended external force or impact. was there.

In the latter conventional method of positioning and fixing a printed wiring board (see FIG. 6), there is no restriction on the printed wiring board P in the vertical direction.
If the printed wiring board P is lifted by an impact hitting the printed wiring board P, or if the printed wiring board P is warped, the printed wiring board P moves vertically when working on the printed wiring board P. There is a problem that the work on the printed wiring board P cannot be performed.

In view of the above problems, the present invention reliably prevents the printed wiring board from being displaced in the horizontal direction, and from being lifted up or moved up and down when performing a predetermined operation. It is an object of the present invention to provide a device and method for positioning and fixing a printed wiring board.

[0007]

In order to solve the above-mentioned problems, a printed wiring board positioning and fixing apparatus according to the present invention comprises a quadrangular printed wiring board mounted thereon, and two sides thereof abutting against each other. A fixed table having a positioning step portion, a horizontal positioning member provided on the fixed table so as to have a pressing portion abutting on a corner between the other two sides of the printed wiring board and to be capable of approaching / separating from the corner. And a board upper and lower holding plate which can be moved up and down so that the working hole is opened and the lower surface thereof comes into contact with and separates from the upper surface of the printed wiring board.

According to the printed wiring board positioning and fixing apparatus having such a configuration, the printed wiring board is placed on the fixed table, and two sides of the printed wiring board are protruded to the two steps of the fixed table. Hit and position,
Press the pressing portion of the horizontal positioning member to the other 2
It can be fixed in the vertical direction by contacting the corners between the sides and fixing in the horizontal direction, contacting the lower surface of the board upper and lower holding plate with the upper surface of the printed circuit board and pressing the printed circuit board downward. .

[0009]

Embodiments of the present invention will be specifically described below with reference to the drawings. 1 to 4
FIG. 1 is a diagram referred to for describing a first embodiment of a device and method for positioning and fixing a printed wiring board according to the present invention.

A printed wiring board positioning and fixing device 11 according to a first embodiment of the present invention is provided in a resin feeder 10 as shown in FIG. This resin feeder 10
1, the printed wiring board positioning and fixing device 11 is fixed on the base 13. A frame 15 is provided upright at an end of the base 13.

The upper end of the frame 15 is filled with a resin adhesive, and a dispenser nozzle 17 having a discharge port 17a at the lower end is provided so as to hang down. When the dispenser nozzle 17 is lowered, as shown in FIG. 2, a resin adhesive is applied from a discharge port 17a to a predetermined position on the printed wiring board P fixed on the printed wiring board positioning and fixing device 11. It is designed to apply by dispensing a fixed amount.

Device for positioning and fixing printed wiring board 11
Has a fixed table 20 on which two-sided positioning step portions 21 and 22 are formed to abut two sides of the printed wiring board P, as shown in FIG. An elongated hole 24 is formed in the thinner support plate portion 20a of the fixed table 20 at the boundary between the positioning step portions 21 and 22 with respect to the positioning step portions 21 and 22. .

A lower portion of a positioning block 26 (horizontal positioning member) having an inverted convex cross section is slidably fitted in the elongated hole 24 of the support plate portion 20a of the fixed table 20 in the longitudinal direction of the elongated hole 24. are doing. At the tip of the positioning block 26, positioning steps 21 and 21 of the printed wiring board P are provided.
A right-angled V-shaped pressing portion 26a is formed which comes into contact with and presses a corner portion C between two sides that are not abutted on the pressing portion 26.

The lower supporting plate 20 of the printed wiring board P
A screw hole (not shown) is formed on the back side of a, and a screw member 28 is screwed into the screw hole. A screw hole (not shown) is formed on the back side of the positioning block 26, and a screw member 29 is screwed into the screw hole. And these screw members 28, 29
A tension coil spring 31 is stretched between them.

A manual knob 33 is provided upright on the upper surface of the positioning block 26. The manual knob 33 is pinched and operated by applying a force to the positioning block 26 against the tensile force of the tension coil spring 31. It can be moved in a direction away from the printed wiring board P, and when the force applied to the manual knob 33 is reduced, the pressing portion 26a of the positioning block 26 hits the corner C of the printed wiring board P by the tensile force of the tension coil spring 31. Touch and press.

As shown in FIG. 3, above the printed wiring board P positioned and fixed on the fixed table 20, a quadrangular board upper and lower pressing plate 35 having substantially the same size as the printed wiring board P is disposed. I have. Since the substrate upper and lower pressing plate 35 is provided at the upper end of the cylinder rod 37 of the air cylinder 36, the vertical movement of the cylinder rod 37 causes the substrate upper and lower pressing plate 35 to move up and down. Can be.

A work hole 35a is opened in the board upper and lower holding plate 35 as shown in FIG. 2, and when the lower surface of the board upper and lower holding plate 35 contacts the upper surface of the printed wiring board P and presses it, Discharge port 1 of dispenser nozzle 17 that has descended
Reference numeral 7a supplies a resin adhesive to the upper surface of the printed wiring board P through the working hole 35a.

A method for positioning and fixing a printed wiring board using the printed wiring board positioning and fixing device 11 having the above-described configuration will be described below. First, the printed wiring board P is placed on the support plate portion 20a of the fixed table 20, and two sides of the printed wiring board P are brought into contact with the positioning step portions 21 and 22 of the fixed table 20, thereby forming the printed wiring board. The substrate P can be positioned.

Next, before the printed wiring board P is placed on the support plate portion 20a of the fixed table 20, the manual knob 33 is pinched and the positioning block 26, which has been operated to be separated from the printed wiring board P, The force applied to the manual knob 33 is reduced, and the pressing portion 26a is brought into contact with the corner C of the printed wiring board P by the tensile force of the tension coil spring 31 to press the printed wiring board P and fix it in the horizontal direction.

Next, the substrate upper and lower pressing plate 35, which has been retracted upward before the printed wiring board P is placed on the support plate portion 20a of the fixed table 20, is lowered by the contraction of the cylinder rod 37. The lower surface is brought into contact with the upper surface of the printed wiring board P to press the printed wiring board P downward,
Fix it vertically.

For this reason, the printed wiring board P is displaced in the horizontal direction, the printed wiring board P is lifted,
When performing a predetermined work, it can be reliably prevented from moving in the vertical direction. Therefore, the work on the printed wiring board P can be performed smoothly and accurately.

Then, between the positioning step portions 21 and 22 and the printed wiring board P, between the positioning block 26 and the printed wiring board P, and between the board upper and lower holding plate 35 and the printed wiring board P are all surfaces. Since the contact is made, the printed wiring board P can be reliably positioned and fixed.

Even if the printed wiring board P is slightly warped, the flatness of the printed wiring board P can be improved by pressing the printed wiring board P over a wide range with the board upper and lower pressing plate 35. Smoothly
Can be done accurately.

Next, the dispenser nozzle 17 of the resin feeder 10 descends, and the working hole 3
5a through the discharge port 17a of the dispenser nozzle 17
Can be discharged to supply a resin adhesive to a predetermined position on the printed wiring board P.

Then, after the dispenser nozzle 17 is raised, the substrate upper and lower pressing plate 3 is moved by the cylinder rod 37.
5 is lifted to release the printed wiring board P from being pressed downward, and finally, the pressing portion 26a of the positioning block 26 is manually separated from the printed wiring board P by a manual When the substrate P is released from being pressed in the horizontal direction, the printed wiring board P can be taken out from the support plate portion 20a with the other hand, and the operation on the printed wiring board P can be completed.

In the above embodiment, the case where the present invention is applied to a resin feeder has been described. However, the present invention is not limited to the resin feeder, and it is necessary to position and fix a printed wiring board. If so, the present invention can be applied to any other device.

Although the embodiments of the present invention have been specifically described above, the present invention is not limited to the above-described embodiments, and various other embodiments are possible based on the technical idea of the present invention. Can be changed.

[0028]

As described above, according to the present invention,
It is possible to reliably prevent the printed wiring board from being displaced in the horizontal direction, and from being lifted up or moved up and down when performing a predetermined operation. Therefore, the work on the printed wiring board can be performed smoothly and accurately.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a resin feeder 1 using a printed wiring board positioning and fixing device 11 according to a first embodiment of the present invention.
FIG.

FIG. 2 is an exploded perspective view of the printed wiring board positioning and fixing device 11;

FIG. 3 is a partial cross-sectional side view of the printed wiring board positioning and fixing device 11;

FIG. 4 is a plan view of the printed wiring board positioning and fixing device 11;

FIG. 5 is a perspective view of a conventional fixed table 50.

FIG. 6 is a perspective view of another conventional fixed table 70.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Resin feeder, 11 ... Printing circuit board positioning and fixing device, 13 ... Base, 15 ... Frame, 17 ... Dispenser nozzle, 17a ... Discharge port, 20 ... Fixed table, 20a ... Support plate part, 21, 22 ... Positioning Step,
Reference numeral 24: long hole, 26: positioning block, 26a: pressing portion, 28, 29: screw member, 31: extension coil spring, 3
Reference numeral 3 denotes a manual knob, 35 denotes a board upper and lower holding plate, 35a denotes a working hole, 36 denotes an air cylinder, 37 denotes a cylinder rod, 5
0: fixed table, 53, 54: positioning step, 56
... Support surface, 58 ... Opening, 60 ... Ventilation path, 62 ... Hose,
70: fixed table, 72, 73: positioning step, 7
5 ... Pressing member, 77 ... Pressing coil spring

Claims (3)

[Claims] 1. A fixed table having a two-sided positioning step for placing a four-sided printed wiring board and abutting the two sides, and contacting a corner between the other two sides of the printed wiring board. A horizontal positioning member provided on the fixed table so as to be capable of approaching / separating from the corner portion and having a pressing portion in contact with the corner; An apparatus for positioning and fixing a printed wiring board, comprising: a board upper and lower pressing plate provided. 2. A fixed table having a two-sided positioning step for placing a four-sided printed wiring board and abutting the two sides, and contacting a corner between the other two sides of the printed wiring board. A horizontal positioning member provided on the fixed table so as to be capable of approaching / separating from the corner portion and having a pressing portion in contact with the corner; The printed wiring board is placed on the fixed table by using a printed wiring board positioning and fixing device provided with the board upper and lower pressing plates provided, and two sides of the printed wiring board are The pressing portion of the horizontal positioning member abuts on a corner between the other two sides of the printed wiring board and is fixed in the horizontal direction, and the lower surface of the board upper and lower pressing plate is fixed. Positioning and fixing a printed wiring board, characterized in that so as to fix the vertical direction by serial contacting the upper surface of the printed circuit board to press the printed wiring board downward. 3. The pressing member according to claim 1, wherein the horizontal positioning member has one end locked to the back side of the fixed table and the other end locked by the tension of a tension spring locked to the back side of the horizontal positioning member. 2. The printed circuit board according to claim 1, wherein the printed circuit board is brought into contact with a corner between two other sides.
A positioning and fixing device for a printed wiring board according to claim 1.