JPH01297900A - Board clamping apparatus - Google Patents

Abstract

PURPOSE:To achieve smooth transfer and accurate positioning of a printed circuit board by releasing press member during transfer of the board, and by pressing one entire side of the board with a pressing means during clamping of the board. CONSTITUTION:During transfer of a printed circuit board 29, a shaft 51 moves toward direction of A. So levers 49 are rotated toward direction of C with a pin 20 as a pivot by integral blocks 52 on the shaft 51. Then, a slide guide 45 moves toward direction of C, and one side of the board 29 and the guide 45 are in a status that they do not come into contact with each other. At the same time a lever 34 moves toward direction of D so that the lever 34 does not come into contact with the side of the board 29. When the board 29 is transferred to a preset position on guide rails 46a and 46b under such condition, a guide pin 30 is inserted to a guide hole 33 thereby positioning of the board 29 is completed. Then the guide blocks 52 move toward direction of A', and the lever 49 rotates toward direction of C' so that the guide 45 is slid toward direction of C' and presses one entire side of the board 29.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to the positioning of a printed circuit board, and more particularly to a circuit board fixing device for positioning a printed circuit board on a guide rail and always stably mounting the printed circuit board.

Conventional technology The first example of conventional technology is the Japanese Patent Publication No. 59-29593.
As shown in FIG. 6 of Publication No. 3-7, a pressing means is provided on the chute support 1, and the central portion of the lower chute 3 of the substrate transport chutes 2a and 2b is divided into a plurality of parts, and a few of them are One of the protrusions 4 is in contact with one side of the printed circuit board. Next, the operation will be explained. Board placement part 5
When the printed circuit board that has been slid reaches the predetermined position, the press lever 7 rotates counterclockwise in the direction of the arrow ■ in response to the lowering of the upper and lower rods 6, and the chute support 1 is set downward, and the guide pin 8 The guide hole 9 is inserted into it.

In this state, the protrusion 4 already provided at the center of the lower chute 3 is removed from the upper chute 1 by the set screw 10.
1 and is pressed in the direction of the arrow by a pressing spring 12, and is biased toward the substrate transport shoe 2a side by the pressing force. Further, after the guide pin 8 insertion step is completed, the pivot lever 14, which is biased by the spring 13, is also pressed from the direction shown by the arrow. Therefore, the printed circuit board is
The printed circuit board was positioned by being pressed from 9o0 different directions.

As shown in FIG. 2 and FIGS. 7 to 9 of Japanese Patent Publication No. 1102-1982, 15 is a printed circuit board, and 16 is a guide pin for regulating the printed circuit board 15, which is integrated with the shirt 1-17. It is attached to the pin lever 18. 19 is a guide hole of the printed circuit board 15, 20 is a guide rail 21
It is a slide guide that slides between a and the plate 22, and is biased by a pressing spring 23. Reference numeral 24 denotes a lever for releasing the slide guide 20, which swings about a pin 26 installed on the plate 22 as a fulcrum. 21
A21b is a guide rail that holds the printed circuit board. 26 is a shirt 1- which is integrated with the block 27 and reciprocates in the direction of the arrow M-M' to operate the lever 24 which is in contact with the block 27, and when the slide guide 20 is in the biased state, the shirt 1- direction by a spring 28. Next, the operation will be explained. When the transported printed circuit board 15 reaches a predetermined position on the guide tray/l/21a, 22b, the shaft 17 rotates in the direction of arrow N.
A pin 16 is inserted into the guide hole 19 of the guide pin 5 attached to a pin lever 18 integrated with the board to position the board. At this time, the shaft 17 is in a state of being operated by an actuator (not shown) in the direction of arrow M'. Thereafter, by releasing the actuator (not shown), the spring 28 is activated and the block 2 integrated with the shaft 26 is activated.
7 slides in the direction of arrow M, and the lever 24 in contact with the block 27 rotates in the direction of P using the pin 25 as a fulcrum, so that the slide guide 20, which was biased by the pressing spring 23, moves in the direction of arrow P. direction and press the entire one end surface of the printed circuit board.

Problems to be Solved by the Invention However, in the first structure, the pressing means provided on the chute support 1 is biased by the pressing spring 12 even when the printed circuit board is being transported, so that the printed circuit board cannot be smoothly moved. Cannot be transported. Further, when inserting the guide hole 9 into the guide pin 8, the center of the guide hole 9 and the center of the guide pin 8 do not match because the printed circuit board is biased as described above. In that case, the fixed guide 6 and hole 9 come into contact with the guide pin 8 installed at a predetermined position,
The guide pin 8, which should serve as a reference for the printed circuit board, is shaved off, making it impossible to perform accurate positioning. Furthermore, since the protrusion 4, which is the pressing means, is divided into a plurality of parts, when the size of the printed circuit board is changed, it is necessary to change the position of the protrusion 4, which takes a lot of time. Was.

In addition, in the second structure, the slide guide 20, which is biased by the pressing spring 23, slides in the front-back direction and presses only one end surface of the printed circuit board 15, so that For large boards or boards with a large number of preceding components inserted, there is a problem that the board may shift horizontally when the table is moved, reducing the insertion reliability and operating rate of the machine. had.

In view of the above-mentioned problems, the present invention prevents the pressing material from coming into contact with the end surface of the printed circuit board when transporting the printed circuit board, and enables the pressing means to press the two end surfaces of the printed circuit board after inserting a guide pin when fixing the printed circuit board. , enables positioning and fixing with accurate dimensions.

7 Heh.

In addition, it has a certain pressing function and can be flexibly adapted to the size of the printed circuit board, ensuring stable insertion reliability and
The present invention provides a substrate fixing device that can ensure availability.

Means for Solving the Problems In order to solve the above problems, the board fixing device of the present invention includes a pair of parallel guide rails capable of holding the end surfaces of the printed circuit boards being transported, and a guide rail adjacent to one side of the guide rails. a guide pin that is provided at a position where the printed circuit board is inserted and that can be inserted into a guide hole provided at a predetermined position of the printed circuit board; a lever that is adjacent to the guide pin and that is movable in the printed circuit board conveyance direction;
In a board fixing device comprising a slide guide located on the guide rail and movable in a direction substantially perpendicular to the direction of conveyance of the printed circuit board, the printed circuit board is conveyed to a predetermined position with the guide pin inserted into the guide hole. , the lever is set to be able to press the side surface of the printed circuit board in the direction of conveyance of the printed circuit board, and the slide guide is driven by the same drive section as that of the lever to push the side surface of the printed circuit board from a direction substantially perpendicular to the direction of conveyance of the printed circuit board. It has a configuration in which the end face can be pressed.

Effect of the Invention With the above-described configuration, the present invention is able to release the pressure, which is always in an energized state, when the printed circuit board is being transported, allowing smooth transportation of the printed circuit board. Furthermore, since the guide pin is not shaved, positioning with stable dimensions is possible. Further, by using a single plate to press the slide guide serving as the pressing means against the entire end surface of the printed circuit board, there is no need to change the protruding portion. Furthermore, by pressing the two end faces, it is possible to reliably position even large and heavy boards.

EXAMPLE Hereinafter, a substrate fixing device according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5. 29 is a printed circuit board into which electronic components are inserted; 30 is a guide pin for regulating the printed circuit board 29; the guide pin is attached to a pin lever 32 integrated with a shaft 31; 33 is a guide hole 9 of the printed circuit board 29. A lever 34 is attached to the shaft 31 and positioned by a pin 35 in the pin lever 32;
The pin 37 attached to the pin lever 32 and the lever 34
A spring 39 jointed through a pin 38 attached to the shaft 40 is attached to the lever 34.
42 is a bracket to which the shaft 31 and shirt 50 are attached, 43
(shirt) 40 is a spring that always biases it in the B' direction, and 44 is a block. 46 is Gaitley/L'46
It is a slide guide that slides between a and a plate 47, and is biased by a pressing spring 48. Reference numeral 49 denotes a lever for releasing the slide guide 45, which swings about a pin 6o installed on the plate 47 as a fulcrum. 4ea
, 4eb is a guide rail that holds the printed circuit board 29;
A shaft 51 is integrated with the block 62 and reciprocates in the direction of arrow A-A' to operate the lever 49 in contact with the block 52. When the slide guide 45 is in the biased state, it moves in the direction of arrow A'. is biased by spring 63 to 10 bases.

There is. 54 is a link provided on the shaft 51 via a pin 65, 56 is a link provided on the shaft 4o via a pin 57, 58 is located between the links 54 and 56,
This is a collar connected to a pin 59.

The operation of the substrate fixing device configured as described above will be described below with reference to the drawings. During board transportation, an actuator (not shown) presses the collar 68 in the direction of the arrow, causing the link 54 to swing via the pin 59, and the shaft 51 connected to the pin 55 to move toward the bracket 42. The lever 49 is guided to move in the A direction, and the lever 49 is rotated in the C direction using the pin 50 as a fulcrum by the lever block 62 integrated with the shaft 51. Then lever 49
The slide guide 45 moves in the C direction, and one end surface of the printed circuit board 29 and the slide guide 45 are no longer in contact with each other. At the same time, due to the actuation of the actuator, the link 56 swings via the pin 59, and the shaft 4o connected to the pin 57 is guided by the bracket 42 and moves in the B direction. 11 /\-7, the block 39 integrated with the shaft 4Q comes into contact with the pin 41 fixed to the lever 34, and the lever 34 moves in the D direction. At this time, the lever 34 is not in contact with the side surface of the printed circuit board 29.

In such a state, when the printed circuit board 29 is transported to a predetermined position on the guide trays 46a and 46b, the guide pin 30 attached to the pin lever 32 integrated with the shaft 31 rotating in the direction of arrow E Guide hole 33
is inserted into the board to position the board. Next, when the actuator (not shown) is released, the spring 43 slides the block 44 in the direction B', and the shaft 40
The block 39 integrated with slides in the B' direction,
The pin 41 fixed to the lever 34 and the block 39 are not in contact with each other. Then, the lever 34 is guided by the shaft 31 and the pin 35 and moves in the D' direction by the spring 36 provided via the pins 37 and 38, and presses the side surface of the printed circuit board 29. At the same time, when the actuator (not shown) is released, the spring 53 is activated and the block 52 integrated with the shaft 51 is moved along the direction indicated by the arrow AI.
The lever 49, which slides in the force direction and is in contact with the block 62, rotates about the pin 50 in the C' force direction, so that the slide guide 46, which was biased by the pressure spring 48, slides in the arrow C' force direction. , the entire one end surface of the printed circuit board 29 is pressed.

As described above, according to this embodiment, by providing a drive unit that moves the guide pins up and down and a drive unit that is separate from the drive unit, when the printed circuit board is transported, the slide guide and the spring that are biased against the front surface of the printed circuit board by the pressure spring can be used. This makes it possible to release the levers that were biasing the sides of the printed circuit board, allowing smooth conveyance of the printed circuit board. Furthermore, since the guide pin can be pressed after insertion, the guide pin is not scraped and positioning with stable dimensions is possible. Furthermore, since the entire one end surface is pressed, it is possible to flexibly respond to changes in the size of the printed circuit board. Furthermore, since the two end faces can be pressed, it is possible to reliably position even large and heavy boards.

13'＼-Effects of the Invention As described above, the present invention includes a pair of parallel guide rails that can hold the end face of a printed circuit board that is being transported, and a pair of parallel guide rails that are provided at a position adjacent to one side of the guide rails to hold the printed circuit board. a guide pin that can be inserted into a guide hole provided at a predetermined position on the board; a lever that is adjacent to the guide pin and movable in the printed circuit board conveyance direction; and a lever that is located on the guide rail;
In a board fixing device consisting of a slide guide that is movable in a direction substantially perpendicular to the direction of conveyance of a printed circuit board, the lever is moved in the direction of conveyance of a printed circuit board with the guide pin inserted into the guide hole after the printed circuit board has been conveyed to a predetermined position. The side surface of the printed circuit board can be pressed, and the slide guide can press the entire end surface of the printed circuit board from a direction substantially perpendicular to the direction of conveyance of the printed circuit board, so that the printed circuit board can be transported smoothly. It is possible to do so. In addition, after the guide pin is inserted into the guide hole, it is biased by a lever/slide guide that can be pressed, so there is no wear due to contact between the guide pin and the guide hole, and positioning can be performed with accurate dimensions. Furthermore, since the entire one end surface is pressed, it is possible to flexibly respond to changes in the size of the printed circuit board. Furthermore, since the two end faces are pressed, reliable positioning is possible even for large and heavy boards.

Therefore, by having such a pressing function, the positioning of the printed circuit board can be maintained at a stable dimension, so that it is possible to always provide a machine with high insertion reliability and high operation rate.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a substrate fixing device according to an embodiment of the present invention, FIG. 2 is a detailed plan view of a part of the lever, FIG. 3 is a sectional view taken along the line F-F' in FIG. 1, and FIG. The figure is G-G in Figure 1.
5 is a cross-sectional view taken along the line 'H' in FIG. 4, FIG. 6 is a perspective view of the first conventional board fixing device, and FIG. 7 is a second
FIG. 8 is a plan view of the board fixing device in the conventional example.
FIG. 9 is a detailed plan view of a part of the lever shown in the figure, and FIG. 9 is a side view of the same. 29...Printed circuit board, 3o...Guide pin, 31.40,51...Shaft, 32.
...Pinlay 15 l<-> Bar, 33...Guide hole, 34...Lever, 36°43.53...Spring, 39
...Block, 42 ...Bracket, 45
...Slide guide, 46a, 46b...
...Guide rail, 47...Plate, 4B.
...Press spring, 49...y<-152.
...Block, 54.56 ...Ring, 5
5゜57.59...Pin, 59...Color.

Claims (4)

[Claims] (1) A pair of parallel guide rails capable of holding the end surface of the printed circuit board being transported, and a pair of guide rails provided adjacent to one side of the guide rails, which can be inserted into a guide hole provided at a predetermined position of the printed circuit board. A board fixing device comprising a guide pin, a lever adjacent to the guide pin and movable in the printed circuit board conveyance direction, and a slide guide located on the guide rail and movable in a direction substantially perpendicular to the printed circuit board conveyance direction. , with the printed circuit board transported to a predetermined position inserted into the guide hole by the guide pin, the lever can press the side surface of the printed circuit board in the printed circuit board transport direction, and the slide guide can press the side surface of the printed circuit board in the printed circuit board transport direction. A circuit board fixing device characterized in that the entire one end surface of a printed circuit board can be pressed from a substantially vertical direction. (2) The substrate fixing device according to claim 1, wherein the lever and the slide guide can be operated by one driving source. (3) The drive source includes a first shaft capable of operating the lever and sliding in one direction, a second shaft capable of operating the slide guide and sliding in a direction parallel to the first shaft, and a second shaft capable of operating the slide guide and sliding in a direction parallel to the first shaft. Claims characterized by comprising a link part configured to connect the first shaft and the second shaft, and by operating the link part, the first shaft and the second shaft can slide simultaneously. 2. The substrate fixing device according to item 2. (4) The substrate fixing device according to claim 3, wherein the first shaft and the second shaft are slidable in mutually opposite directions.