JPH0680955B2 - Board positioning device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for positioning an electronic circuit board or the like at a predetermined position for mounting an electronic component or the like.

Configuration of Conventional Example and Its Problems Conventionally, in a device for mounting a leadless type electronic component on a substrate such as a ceramic substrate on which a positioning reference hole is difficult to be provided, the substrate positioning device is shown in FIGS. 1 and 2. It was like that.

FIG. 1 shows a motherboard 1 provided with positioning reference holes 101.
FIG. 11 is a perspective view of a substrate carrying jig showing a method of mounting the substrate 103 on 02 and carrying out the carrying and inserting the positioning pin 104 to carry out positioning.

FIG. 2 shows a positioning jig for the substrate 105 from the transfer conveyor 106.
After transfer to 107 by feed claw 108, train wheel setting lever 109, 110, 111
FIG. 7 is a perspective view of a positioning device showing a method of pressing and positioning with.

However, such a method has a major drawback that it is difficult to set the board, and it takes time and cost to replace the parts when the board size is changed, which makes it difficult to deal with the problem.

An object of the present invention is to solve the above-mentioned drawbacks of the prior art, and to provide a positioning device capable of performing accurate positioning in a short time even on a substrate having no positioning reference hole, and easily responding to a change in substrate size. .

According to the present invention, a conveyor for conveying a substrate, a stopper for stopping the conveyed substrate, a first train wheel setting lever for pressing the substrate onto the stopper, and a second train wheel setting lever for pressing the substrate on a guide surface of the conveyor are provided. Also, even if the board does not have a reference hole for positioning, it is equipped with a holding lever that prevents the board from floating upward and the position of the conveyor stopper, the first and second train wheel setting levers, etc. is adjustable. This is a positioning device that can perform accurate positioning in a short time and can easily respond to changes in substrate size.

Description of Embodiments One embodiment of the present invention will be described below with reference to FIGS.

Belt A2,2 'and belt B3,
3'is provided, and the substrate 4 is conveyed by this belt B3,3. A stopper 5 is swingably connected to the air cylinder A6. A block A guides the stopper 5 and the air cylinder A6 and is attached to the bracket 8 so as to be movable in parallel with the conveyor 1 along a groove 9 of the bracket 8.

Reference numeral 10 is a train wheel setting lever A, which is biased in one direction by a spring A11 and is swingably attached to a lever 12.

The lever 12 and the air cylinder B13 are swingably guided and attached to the block B14. The block B14 is connected to the bracket 8 in the same manner as the block A7.

The train wheel setting lever B15 is urged by a spring B16 to conveyer 1
The substrate 4 is pressed against the guide surface 17 of No. 3 and set. 18 is substrate 4
It is a presser lever to prevent the from floating upward, and is biased by a spring C19. The train wheel setting lever B15 and the presser lever 18 are air cylinders C21 connected to the rod 20.
Is operated to regulate the substrate 4. block
C22 is attached to the conveyor 1'by guiding the train wheel setting lever B15, the pressing lever 18, the air cylinder C21 and the like.

The angles 22 and 22 'holding the conveyor 1'can be moved according to the width of the substrate 4 by releasing the clamp levers 23 and 23'.

Next, the operation of the above configuration will be described. The substrate 4 on the conveyor 1, 1'is moved by the rotation of the belts A2, 2'and the belts B3, 3 ', and comes into contact with the stopper 5 to stop. Also, the belts A2, 2'and the belts B3, 3 'also stop rotating.

Next, when the air cylinder B13 is operated, the lever 1
2 operates, and the train wheel setting lever A10 presses the substrate 4 against the stopper 5 via the spring A11 to set the board. Then, when the air cylinder C21 operates, the rod 20 moves up, and the train wheel setting lever B15 presses the end surface of the substrate 4 against the guide surface 17 of the conveyor 1 by the force of the spring B16 to set it, and the presser lever 18 moves the spring C19. Substrate 4 through the force of
Press the top surface of the to prevent floating.

When the positioning of the board 4 is completed, the electronic component mounting operation is started.

Next, when the mounting work is completed, the air cylinder A6, the air cylinder B13, and the air cylinder C21 operate, and the stopper 5, the train wheel setting lever A10, the train wheel setting lever B15, and the presser lever 18
Is released and the belts B3, 3'rotate to carry out the substrate 4 which has been mounted. Next, the air cylinder A6 operates, the stopper 5 rises, the belts A2, 2'rotate, and a new substrate is supplied.

Next, the adjustment when the substrate size is changed will be described.

The length of the board in the flow direction is adjusted by loosening the bolts fixing the block A7 or the block B14 attached to the bracket 8 and moving along the groove 9 to adjust the stopper 5 and the base according to the length of the board. Determine the gap between the positive lever A10 and fix the bolt.

Next, in the adjustment of the width direction of the substrate, the clamp levers 23, 23 'are released and the conveyor 1'is moved to determine the gap between the guide surface 17 of the conveyor 1 and the train wheel setting lever B15 and the clamp lever 2
By fixing 3,23 ', the positioning device can be adjusted to the desired substrate size.

As described above, according to the present invention, even if the substrate does not have the positioning reference hole, the stopper and the guide surface of the conveyor are used as a reference to press the end face of the substrate through the force of the spring with the force of the spring to set the substrate and prevent the floating of the substrate. Since a holding lever is provided, the board can be accurately positioned.

Also, the position of the conveyor, stopper, train wheel setting lever, etc. can be moved to easily change the size of the substrate.

[Brief description of drawings]

FIG. 1 is a perspective view of a conventional substrate transfer jig, FIG. 2 is a perspective view of a conventional positioning device, FIG. 3 is a plan view of a substrate positioning device in an embodiment of the present invention, and FIG. A in the figure
FIG. 5 is a sectional view taken along line A, FIG. 5 is a sectional view taken along line BB of FIG. 3, and FIG. 6 is an enlarged sectional view taken along line CC of FIG. 1,1 '…… Conveyor, 4 …… Substrate, 5 …… Stopper, 10 …… Regulating lever A, 15 …… Regulating lever B, 17 ……
Guide, 18 ... Presser lever.

Claims (1)

[Claims] 1. A device for positioning a board on which an electronic component is mounted, which conveys the board and whose width is adjustable according to the dimensions of the board, and stops the conveyed board. A stopper for making it move, a first regulating lever for pushing the substrate against the stopper, a second regulating lever for pushing the substrate against the guide surface of the conveyor, and a substrate pressing means provided for regulating the floating of the substrate upward. A substrate positioning device comprising: a first setting lever that can be set to an arbitrary position on the conveyor independently of the stopper, and the second setting lever can press an arbitrary position on the substrate end surface.