JPH10135692A - Base table for mounting printed wiring board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a printed semiconductor board mounting table adaptive to wiring boards of various shapes by providing on a main body at least one pin for fixing a printed wiring board from moving horizontally and at least one jig for fixing it from moving vertically. SOLUTION: For mounting two printed wiring boards different in shape on a base table 1, pins 131 and fixed pins 16 provided at pin moving rails 111, 114 are inserted in pin holes formed through one corner of each wiring board to fix the printed wiring boards to a flat plate 11 not so as to move horizontally. Press mechanisms of jigs 14, 15 press two points of the ends of the wiring boards from above to fix the wiring boards to the flat plate 11 not so as to move horizontally and vertically. Thus one printed semiconductor between mounting table is adaptable for variously shaped printed wiring boards.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board for mounting a printed wiring board, which is used in a system for automatically transporting a printed wiring board and mounting electric and electronic components on the printed wiring board by a predetermined device. The present invention relates to a printed wiring board mounting base on which printed wiring boards of various shapes can be easily installed by using the same standard base.

[0002]

2. Description of the Related Art For example, when an electric or electronic component is mounted on a printed wiring board, one or more printed wiring boards are mounted on a base using a predetermined jig.
This is automatically transported to a device for mounting electric and electronic components. Conventionally, if the shape of the printed wiring board is different, it is necessary to use a different base plate or replace or change the arrangement of the jig. For this reason, there are inconveniences such as an increase in the types of base plates and jigs that are always prepared, and a troublesome time for exchanging jigs. In order to eliminate such inconvenience, when mounting a printed wiring board that is not compatible with the mounting board on the same mounting board provided with a jig at a predetermined location, a margin is provided on the printed wiring board. In some cases, the outer shape is apparently adapted to the platform. However, in this case, there are problems such as an increase in the manufacturing cost of the printed wiring board and an increase in the number of steps for removing the margin.

[0003] It is an object of the present invention to provide (a) a single printed wiring board mounting stand when a printed wiring board is automatically conveyed and electric and electronic components are mounted on the printed wiring board by a predetermined device. An object of the present invention is to provide a board for mounting a printed wiring board, which can accommodate printed wiring boards of various shapes. Another object of the present invention is to provide a printed wiring board mounting base plate capable of securely fixing the printed wiring board to the base plate by a simple mechanism, in addition to the object of the above (b). Still another object of the present invention is to provide a simple mechanism for fixing a printed wiring board in a horizontal direction or a vertical direction on a board surface in addition to the objects of the above (c) and (b). It is an object of the present invention to provide a board for mounting a printed wiring board, which can be realized at the same time. Still another object of the present invention is to provide a printed wiring board mounting base plate which can be applied to a printed wiring board having printed wirings formed on both sides in addition to (d) the above-mentioned objects of (a) to (c). To provide.

[0004]

SUMMARY OF THE INVENTION A board for mounting a printed wiring board (hereinafter simply referred to as a "board") of the present invention automatically transports a printed wiring board and mounts electric / electronic components on the printed wiring board, or It is used in a system in which processing or testing of a printed wiring board to which electric / electronic parts are attached is performed by a predetermined device. In this specification,
Electronic components may include printed components such as coils, resistors, capacitors, striplines, and the like. Also,
The processing of the printed wiring board is an intermediate processing in a manufacturing process of a printed circuit board (that is, a printed wiring board on which electric and electronic components are mounted) such as reflow and soldering.
The present invention includes a mode in which a magnetic force is not used for a mechanism for fixing a printed wiring board to a base board (hereinafter, referred to as a “first invention”).
There is an embodiment that uses magnetic force (hereinafter, referred to as “second invention”).

[0005] In the first invention, the platform comprises a main body, one or more pins, and one or more jigs. The main body has a flat plate on which a printed wiring board is installed. As this flat plate, various plate materials that are not easily bent such as an aluminum plate and a stainless plate can be used, but from the viewpoint of weight reduction, it is preferable to use an aluminum plate.

A pin is provided on the flat plate and inserted into a pin hole formed in the printed wiring board. Thereby, the printed wiring board is fixed so as not to move in a direction horizontal to the flat plate. As the material of the pin, a synthetic resin or metal can be used. In addition, the pin hole can also be used as a hole for attaching a printed wiring board on which electric and electronic components are mounted to a housing or the like. The pin can be fixedly provided at a fixed position on the flat plate, or can be provided with a track for pin movement on the flat plate and provided so as to slide on the track.

In the case where a protrusion such as a frame is provided on the flat plate and one or two ends of the printed wiring board are in contact with the protrusion, the pins are not necessarily located at fixed positions on the flat plate. It is not necessary to fix and provide. However, when it is desired to precisely fix the position of the printed wiring board, a plurality of pins are provided on the flat plate, at least one pin is fixed at a fixed position on the flat plate, and at least one other pin slides on the track. Preferably. The pin may be fixed at a fixed position on the flat plate as described above, or may slide on the track, but in any case, the pin hole of various printed wiring boards may be used. Can be detached or attached to the flat plate so as to correspond to the position.

[0008] The jig is for fixing the end of the printed wiring board mainly from above so that the printed wiring board does not move in a direction perpendicular to the flat plate, and is provided on the main body. Further, the jig can also have an effect of fixing the printed wiring board so as not to move in a direction horizontal to the flat plate. For example, a spring pressing mechanism for pressing the printed wiring board toward the flat plate by a spring can be used as the jig. Such a jig
It can be fixed at a fixed position on the flat plate, or can be configured to be able to slide on a track provided on the flat plate to cope with various shapes of the printed wiring board. When the main body has a frame, it can be fixed at a fixed position on the frame. When there are a plurality of jigs, at least one jig is fixed to the flat plate (including a case where the jig is fixed to a frame), and at least one other jig slides on a track provided on the flat plate. Can be configured.

When the main body has a frame,
The frame may be provided with a flange projecting to a height corresponding to the thickness of the printed wiring board between the flat plate and the flat plate. By inserting the end of the printed wiring board between the flange and the flat plate, the printed wiring board can be fixed so as not to move in a direction perpendicular or horizontal to the flat plate.

A printed wiring board having printed wiring on both sides (hereinafter referred to as a “printed wiring board for double-sided mounting”)
) Can be applied to the first invention. In this case, an opening is provided in the flat plate, and a printed wiring board on which components are already mounted on one surface is attached to the flat plate such that the one surface faces the opening. This allows
A component mounted on the one surface of the printed wiring board,
There is no contact with the flat plate.

[0011] In the second invention, the base comprises a main body and one or more jigs. The main body of the base of the second invention is:
Like the main body of the board of the first invention, it has a flat plate on which a printed wiring board is installed. This flat plate can be made of a magnetic material such as iron or a magnetic material layer formed on the surface of an aluminum plate or the like. A jig that abuts against an edge of the printed wiring board and fixes the printed wiring board so as not to move in a horizontal direction with respect to the flat plate;
And a pressing portion for pressing an end of the printed wiring board from above to fix the printed wiring board so as not to move in the vertical and horizontal directions with respect to the flat plate, and a permanent magnet is provided on a lower surface. The jig in the second invention is
The structure is simpler than the jig using the spring in the first invention, and the manufacturing cost is low. Further, the contact portion may be configured so that an edge of the printed wiring board can be pressed in a horizontal direction by a spring mechanism, or the pressing portion can be pressed so that an end of the printed wiring board can be pressed from above by a spring mechanism. A unit can also be configured.

In the second invention, the jig can be arranged at an arbitrary position on the flat plate, so that it is possible to cope with various shapes of the printed wiring board. By the way, in the jig in the second invention,
When the printed wiring board is placed on the flat board without the end between the holding section and the flat board, the gap distance between the holding section and the flat board is shorter than the thickness of the printed wiring board. In some cases, there is no surface contact with the flat plate surface. But,
Even in this case, the jig is firmly fixed to the flat plate by magnetic force. Therefore, the same jig can be used to fix printed wiring boards having different thicknesses without moving the printed wiring board in a direction perpendicular to the flat plate without using a spring pressing mechanism.

When the main body has a frame,
As in the first invention, the frame may be provided with a flange protruding to a height corresponding to the thickness of the printed wiring board between the flat plate and the flat plate. By inserting the end of the wiring board, the printed wiring board is prevented from floating.

In the second invention, when the main body has a frame, the end of the printed wiring board is mounted on the frame so that the printed wiring board does not contact the flat plate. In addition to providing two flanges protruding so as to sandwich the printed wiring board, the jig may have a notch for holding the printed wiring board at a height at which the two flanges sandwich the printed wiring board. Thereby, it can be applied to a printed wiring board for double-sided mounting.

As in the case of the first invention, in the second invention, the flat plate is provided with an opening so as not to come into contact with components on the printed wiring board, so that the printed wiring board for double-sided mounting is formed. It can also be applied.

[0016]

1 to 3 show an embodiment of the base of the first invention. In FIG. 1, a base 1 includes a rectangular flat plate 11 and a frame 12 constituting a main body, a pin moving member 13, jigs 14 and 15, and a fixing pin 16. The flat plate (aluminum plate) 11 has four slits formed in parallel with a pair of opposing sides. Of these slits, two close to the opposing sides form pin moving trajectories 111 and 114, and the other two form jig moving trajectories 112 and 113.

Frame (made of aluminum thin plate)
Reference numerals 12 are provided on four sides of the flat plate 11, and two-stage flanges 121 are formed toward the inside of the base 1. As shown in the enlarged partial sectional view of FIG. 1, the flange 121 has a height of the first step (distance from the surface of the flat plate 11) (2 m
m) and the height of the second step (3.2 mm). In addition, the remarkable numerical value is an example, and is not limited to this. The numerical values described below are also for the purpose of illustration, and the present invention is not limited thereto.

Two pin moving members 13 each having a pin 131 at the top are provided on the pin moving tracks 111 and 114.
Are slidably fitted. Two jigs 14 are slidably fitted in the jig moving tracks 112 and 113, respectively. FIG. 1 shows a slit 115 and a jig 1 for taking out the pin moving member 13.
A slit 116 for taking out 4 is formed.
Pin moving paths 111 and 114 communicate with the slit 115, and jig moving paths 112 and 113 communicate with the slit 116.

The jig 15 includes a pin moving trajectory 1 of the flat plate 11.
The fixing pins 16 are provided on the side of the frame 12 on the sides parallel to the pins 11 and 114, respectively.
4 are respectively provided on the extension of the longitudinal center.

FIG. 2A is a perspective view of the pin moving member 13, FIG. 2B is a partially cutaway perspective view of the jig 14, and FIG. It is a notch perspective view. As shown in FIG. 2A, the pin moving member 13 includes a shaft P, circular flanges Q1 and Q2 having thicknesses formed on upper and lower portions thereof and formed coaxially with the shaft P, and a circular flange. And the above-mentioned pin 131 formed at the center of Q1. The pin moving member 13 is made by integral molding of polyethylene. The shaft column P is a flat plate 11
Has a height of 3 mm, which is slightly larger than the thickness of 2 mm, and a diameter of 6 mm, which is slightly smaller than the slit width of the pin moving tracks 111, 114 of 7 mm. Circular flange Q1, Q
2 each have a thickness of 2 mm and a diameter of 15 mm, each larger than the slit width.
The pin 131 has a height of 2 mm and an outer diameter slightly smaller than the inner diameter of the pin hole of the printed wiring board (for example, 1.8 mm for a pin hole diameter of 2 mm).

As shown in FIG. 2 (B), the jig 14 comprises a shaft column R and a shaft column R having a thickness formed on upper and lower portions thereof.
Circular flanges S1 and S2 formed coaxially with (abutting portions abutting on the edge of the printed wiring board) (S2 is a pressing portion when pressing the end of the printed wiring board from above); And a spring pressing mechanism 141 formed on the circular flange S2. Except for the spring pressing mechanism 141, the jig 14 is formed by integral molding of polyethylene. The shaft R is, like the shaft P of the pin moving member 13, slightly larger than the thickness 2 mm of the flat plate 3.
mm, and has a diameter of 6 mm, which is slightly smaller than the slit width of the jig moving orbits 112 and 113 of 7 mm. Circular flanges S1 and S2 are 5mm and 2mm respectively
And has diameters of 17 mm and 15 mm, respectively, which are larger than the slit width. The pressing mechanism 141 is formed within the thickness of the circular flange S2, and includes a spring 142 and a pressing body 143 urged downward by the spring.

As shown in FIG. 2C, the jig 15 includes a support T, a beam U extending horizontally from the upper end thereof, and a pressing mechanism 151 formed at the tip of the beam U. Although not shown in the figure, the jig 15 has a column T pivotally mounted on the flat plate 11 and can rotate around the axis. Except for the spring pressing mechanism 151, the jig 15 is formed by integral molding of polyethylene. The support T is 2 mm high (height to the lower surface of the beam U) and 8 m on each side
m, the beam U has a protrusion length of 15 mm,
Each side has a rectangular parallelepiped shape of 8 mm. The pressing mechanism 151 is formed in the tip of the beam U, and includes a spring 152 and a pressing body 153 urged downward by the spring.

FIG. 3 is a view showing a state in which two differently shaped printed wiring boards 101 and 102 are mounted on the base 1 shown in FIG. Pins 131 and fixing pins 16 provided on pin moving tracks 111 and 114 are inserted into pin holes formed at one corner of each of the printed wiring boards 101 and 102. It is fixed so that it does not move in any direction. Further, the pressing mechanisms 141 and 151 of the jigs 14 and 15 press the two ends of the printed wiring boards 101 and 102 from above, and the flange 121 of the frame 12 is connected to the ends of the printed wiring boards 101 and 102. It is approaching the top. Thus, the printed wiring boards 101 and 102 are fixed so as not to move in the vertical and horizontal directions with respect to the flat plate 11.

FIGS. 4 to 6 are views showing a first embodiment of the platform of the second invention. In FIG. 4, the base 2 includes a flat plate 21 and a frame 22 constituting a main body, and a jig 23. In this embodiment, the flat plate 21 is configured by joining an iron plate 212 to an aluminum plate 211. The frame 22 is provided on four sides of the flat plate 21, and two-stage flanges 221 are formed toward the inside of the base 1. As shown in the enlarged sectional view of FIG. 6, the flange 221 has a height of the first step (distance from the surface of the flat plate 21) (2
mm) and the height of the second step (3.2 mm).

The jig 23 has a top surface V and a pair of side surfaces W as shown in FIG.
And a permanent magnet 232 housed in the jacket 231. Below the front and rear ends of each side surface W of the jacket portion 231,
Each has a rectangular notch C. The vertical portion of the notch C is a contact portion that contacts the edge of the printed wiring board, and the horizontal portion of the notch C is a pressing portion.

FIG. 6 is a view showing a state in which printed wiring boards 201 to 204 having four different shapes are attached to the base board 2 shown in FIG. Printed wiring boards 201-204
A jig 23 firmly fixed to the flat plate 21 by magnetic force is aligned with the notch C at an edge of an appropriate place on two sides (in the vicinity of a corner formed by the two sides in FIG. 6). It is arranged. Further, two adjacent side edges of the printed wiring boards 201 to 204 are connected to the flange 2 of the frame 22.
21 is at the height of the second step. Thereby, the printed wiring boards 201 to 204 are fixed so as not to move in the horizontal direction and the vertical direction with respect to the flat plate 21.

FIGS. 7 to 9 are views showing a second embodiment of the platform of the second invention. This embodiment is suitable for a printed wiring board for double-sided mounting. In FIG. 7, a base plate 3 includes a flat plate 31 and a frame 32 constituting a main body, a jig 33
Consists of In the present embodiment, the flat plate 31 is configured by joining an iron plate 312 to an aluminum plate 311.

As shown in the enlarged view of FIG.
Are provided on four sides of the flat plate 31, and two flanges 321 and 322 are formed toward the inside of the base 1. The flange 321 is formed at a position slightly higher than the surface of the flat plate 31 (here, the distance from the surface of the flat plate 31 to the upper surface of the flange 321 is 10 mm).
The flanges 322 are formed at intervals of m. As shown in FIG. 8, the jig 33 has an upper surface X having a circular permanent magnet 331 therein and a skirt portion Y, and has a diameter of 20 m.
m, a base 332 having a height of 4 mm
And a column portion 333 coaxially with the main body. A cut D having a depth of 2 mm is formed coaxially with the column 333 around a predetermined height (the lower surface is 10 mm from the bottom of the base 333).

FIG. 9 shows four different printed wiring boards 301 to 304 for double-sided mounting on the base 2 shown in FIG.
It is a figure which shows the state which attached. Printed wiring board 30
Jigs 33 firmly fixed by magnetic force to the flat plate 31 are provided with cuts D at the edges of appropriate places on two sides 1 to 304 (near a corner formed by the two sides in FIG. 6). It is arranged so as to match. Also, the flange 3 of the frame 32
Two adjacent side edges of the printed wiring boards 201 to 204 are sandwiched between 21 and 322 (see FIG. 5). Thereby, the printed wiring boards 301 to 3
04 is fixed to the flat plate 31 so as not to move in a horizontal direction and a vertical direction. When the board 3 shown in FIG. 7 is used, the surface of the printed wiring boards 301 to 304 on the flat plate 31 side does not contact the flat plate 31.

The board 3 shown in FIG. 7 can be used as a printed wiring board for single-sided mounting. Conversely, by forming openings in the flat plates 11 and 21 of the base boards 1 and 2 shown in FIGS. 1 and 4 so that the back surface of the printed wiring board does not contact the base boards 1 and 2 for mounting on both sides. It can also be applied to printed wiring boards. FIG. 10 shows a state in which an opening 24 is formed in the flat plate 21 of the base board 2 shown in FIG.

When the electric and electronic parts are mounted, the printed wiring board is fixed to the base plate while the electric and electronic parts are mounted.
It is automatically conveyed to a predetermined device for mounting electronic components, and the predetermined device positions the printed wiring board with appropriate marks (for example,
The position is determined based on the pin hole), and parts are mounted.

[0032]

As described above, the present invention has the following advantages. (1) When a printed wiring board is automatically conveyed and electric and electronic components are mounted on the printed wiring board by a predetermined device, a single printed wiring board mounting base plate is used.
It is possible to provide a printed wiring board mounting base plate that can support printed wiring boards of various shapes. (2) A printed wiring board mounting base plate capable of securely fixing the printed wiring board to the base plate with a simple mechanism can be provided. (3) It is possible to provide a printed wiring board mounting base plate capable of fixing the printed wiring board in a horizontal direction and a vertical direction on the base plate surface by a simple mechanism. (4) A printed wiring board mounting base plate that can be applied to a printed wiring board for double-sided mounting can be provided.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of a base plate of the first invention.

FIG. 2A is a view showing a pin moving member used in the first invention, and FIGS. 2B and 2C are views showing a jig used in the first invention;

FIG. 3 is a view showing a state where a printed wiring board is attached to the base board shown in FIG. 1;

FIG. 4 is a view showing an embodiment of the base board of the second invention.

FIG. 5 is a view showing a jig used in the embodiment of FIG.

FIG. 6 is a view showing a state where a printed wiring board is attached to the base board shown in FIG. 4;

FIG. 7 is a view showing another embodiment of the platform of the second invention.

FIG. 8 is a view showing a jig used in the embodiment of FIG. 7;

FIG. 9 is a view showing a state where a printed wiring board is attached to the base board shown in FIG. 7;

FIG. 10 is a diagram showing an example of a base plate applied to a printed wiring board for double-sided mounting.

[Explanation of symbols]

1, 2, 3 base plate 11, 21, 31 Flat plate 211, 311 Aluminum plate 212, 312 Iron thin plate 111, 114 Track for pin movement 112, 113 Track for jig movement 115, 116 Slit 12, 22, 32 Frame 221, 322 Flange 121,221 Flange 13 Pin moving member 131 Pin 14,15,23,33 Jig 231 Jacket part 232 Permanent magnet 331 Circular permanent magnet 332 Base 333 Column part 141 Spring pressing mechanism 142,152 Spring 143,153 Pressing body 151 Pressing mechanism 16 Fixing pin 101, 102, 201 to 204, 301 to 304 Printed wiring board

Claims (10)

[Claims] 1. A system for automatically transporting a printed wiring board and attaching or removing electric or electronic components to the printed wiring board, or processing or testing the printed wiring board to which the electric or electronic components are attached, using a predetermined device. A printed wiring board mounting base plate to be used, wherein the main body has a flat plate on which the printed wiring board is installed, and the printed wiring board is inserted horizontally into a pin hole formed in the printed wiring board so that the printed wiring board is level with the flat plate. One or more pins provided on the flat plate, which are fixed so as not to move in any direction, and the ends of the printed wiring board are fixed from above so that the printed wiring board does not move in a direction perpendicular to the flat plate. And at least one jig provided on the main body. 2. The printed wiring board mounting board according to claim 1, wherein the plurality of pins are provided, at least one pin is fixed at a fixed position on the flat plate, and at least one other pin is the flat plate. A board for mounting a printed wiring board, wherein the board slides on a track provided on the board. 3. The printed wiring board mounting base according to claim 1, wherein the plurality of jigs are provided, at least one jig is fixed to the flat plate, and at least one other jig is provided. A mounting board for mounting a printed wiring board, wherein the jig slides on a track provided on the flat plate. 4. The printed wiring board mounting board according to claim 1, wherein said jig has a spring pressing mechanism for pressing said printed wiring board with a spring. Board for mounting wiring boards. 5. The printed wiring board mounting board according to claim 1, wherein the main body has a frame, and the thickness of the printed wiring board is set between the frame and the flat plate. A mounting board for mounting a printed wiring board, characterized in that a flange protruding at a height corresponding to the height is provided. 6. The printed wiring board mounting board according to claim 1, wherein said flat plate has an opening for preventing contact with components on the printed wiring board. Board for plate mounting. 7. A system in which a printed wiring board is automatically conveyed and an electric / electronic component is attached to the printed wiring board, or a processing or test of the printed wiring board to which the electric / electronic component is attached is performed by a robot. A printed wiring board mounting base plate, wherein the printed wiring board is installed, and is made of a magnetic plate.
Or a main body having a flat plate with a magnetic layer formed on the surface thereof, and a contact portion that abuts on an edge of the printed wiring board and fixes the printed wiring board to the flat plate so as not to move in a horizontal direction, And one or more of: a pressing portion that presses an end portion of the printed wiring board from above, has a holding portion that fixes the printed wiring board so as not to move in a direction perpendicular to the flat plate, and a permanent magnet is provided on a lower surface. A printed circuit board mounting base, comprising: a jig; 8. The board for mounting a printed wiring board according to claim 7, wherein the main body has a frame, and the frame has a height corresponding to a thickness of the printed wiring board between the frame and the flat plate. A board for mounting a printed wiring board, characterized by being provided with a flange that protrudes. 9. The printed wiring board mounting board according to claim 7, wherein the main body has a frame, and the printed wiring board contacts the flat plate between the frame and the flat plate. Two flanges protruding so as to sandwich the end of the printed wiring board are provided at a height not to be imposed, and the jig is printed at a height at which the two flanges sandwich the printed wiring board. A board for mounting a printed wiring board, having a notch for holding the wiring board. 10. The printed wiring board mounting board according to claim 7, wherein the flat plate has an opening for preventing contact with a component on the printed wiring board. Board for plate mounting.