JPS6130760B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a processing table for printed wiring boards and the like.
There is a general-purpose electronic component insertion machine that automatically inserts many types of electronic components into a printed wiring board 1 (hereinafter referred to as a printed circuit board) on which a circuit has been created and component insertion holes have been drilled as shown in the figure. As shown, an object of the present invention is to provide a processing table device for efficiently positioning a printed circuit board 1 in a resistance value correction machine for modifying the resistance value of a printed circuit board 1 on which a resistor is printed.

A conventional processing table device, that is, an X-Y table will be explained with reference to FIGS. 3 to 6.
Reference numeral 3 denotes a main table, which is guided by a pair of guide rods 5 fixed on the substrate 4 and is slidable back and forth in the X-axis direction. 6 is the bracket 7 on the base 4
A ball screw 8 fixed to the rotating shaft of the motor 6 is screwed into a ball nut 9 fixed to the side surface of the main table 3. Reference numeral 10 denotes a sub-table, which is guided by a pair of guide rods 11 fixed on the main table 3 and is movable back and forth in the Y-axis direction. 12 is a motor for moving the sub-table; 13 is a ball screw fixed to the rotating shaft of the motor 12; and 14 is a ball nut screwed onto the ball screw 13, which is fixed to the sub-table 10. 15 is a pair of U-shaped board guides mounted on the sub-table 10; 16 is the hole 1 in the center of the sub-table 10;
A pair of vertically movable positioning pins arranged in the printed circuit board 1 as shown in FIG.
While both ends of the printed circuit board 1 are held by the board guides 15, the pins 16 rise and fit into the positioning holes 17 at the corners of the board 1, thereby positioning the printed circuit board 1.

The conventional X-Y table described above has a main table 3 and a sub-table 10, so the moving weight is large, and the dynamic characteristics are insufficient for use as an X-Y table for automatic insertion of electronic components that require high speed. Unfortunately, sufficient performance cannot be obtained.

Further, when the printed circuit board 1 mounted on the X-Y table is taken out and the next printed circuit board 1 is to be supplied as shown in FIG. and printed circuit board removal device 1
9 to the position shown in the figure, even though the movement range of the sub-table 10 is within the range A, since the sub-table 10, the supply device 18, and the take-out device 19 are on the same plane, it will not work as it is. It is not possible to move the sub-table 10 immediately after completing the supply and take-out, and it is necessary to release the supply device 18 and the take-out device 19 vertically upward as shown in FIG. 6 before starting the movement of the sub-table 10. . Therefore, there is a major drawback in that it takes a considerable amount of time to take out and supply the printed circuit board 1.

The present invention provides a processing table device that solves these problems.

An embodiment of the present invention will be described below with reference to FIGS. 7 to 12. 20 is a table, and the base 2
It is guided by a pair of guide rods 22 fixed on the top of the slider 1 and is slidable back and forth in the X-axis direction. 23 is the base 2
A ball screw 25 fixed to the rotating shaft of the motor 23 is screwed into a ball nut 26 fixed to the table 20. 27, 28
are transport conveyors fixed on the table 20 at regular intervals, and are along the Y-axis direction. Reference numeral 29 denotes a slide block, which is slidable back and forth in the Y-axis direction along a guide rod 30 fixed on the table 20. 31 is a motor for moving the slide block, which is attached to a bracket 32 fixed to the table 20;
A ball screw 33 fixed to the rotating shaft of the motor 31 is threaded into a ball nut 34 provided on the block 29. 35 is block 29
A pair of levers are rotatably disposed above and fixed to a horizontal shaft 36, and a positioning pin 37 for the printed circuit board 1 is protruded from the tips of both levers 35. 38 is a cylinder device for vertically moving the lever 35, the main body of which is connected by a pin to a bar 39 fixed to the block 29, and the tip of the piston stem is connected by a pin to the tip of a rod 40 fixed to the horizontal shaft 36. There is. Both conveyors 2
The details of 7 and 28 will be explained based on FIGS. 8 and 9. That is, frames 41 and 42 having a U-shaped cross section, pulleys 43 and 44 rotatably disposed at both ends of the frames 41 and 42, and a belt 45 wound between the pulleys 43 and 43 and between 44 and 44. , 46, drive motors 47, 48 that rotate one of the pulleys 43, 44, a backup plate 49 disposed along the belt 45 within one frame 41, and a back-up plate 49 disposed within the other frame 42. The air cylinder device 50 includes a back-up plate 51 which is disposed inside the other frame 42 along the belt 46 and is fixed to the tip of the piston 50a of the air cylinder device 50. Reference numeral 52 denotes a center stopper which is moved up and down by an air cylinder device protruding from the center of the base 21.

The operation of the above configuration will be explained. First, it is assumed that the final component insertion or resistance correction has been completed at the position shown in FIG. Next, the air cylinder device 38 is operated to rotate the lever 35 downward, and the positioning pin 37 is rotated downward.
from the positioning hole 17 of the printed circuit board 1. Next, the cylinder device 50 of the conveyor 28 is activated to move the piston 50a in the direction of arrow A, the backup plate 51 is pressed against the belt 46, the printed circuit board 1 is held between the belts 45 and 46, and the motors 47 and 48 is operated to transport the printed circuit board 1 in the direction of arrow B along the Y-axis direction. At the same time, the motor 23 is activated to transport the table 20 along the X-axis in the direction of arrow A, resulting in the state shown in FIG. 11. When the printed circuit board 1 reaches the right end of the table 20 as shown in FIG. 11, the conveyors 27 and 28 are stopped. Next, the printed circuit board supply device 18, conveyors 27, 28, and printed circuit board take-out device 19
are moved at the same time, and the printed circuit board 1 on the right end of the table 20 is sent out to the take-out device 19. At the same time, a new printed circuit board 1 supported by the supply device 18 is sent out onto the left end of the table 20,
When this new printed circuit board 1 hits the center stopper 52 protruding upward, the air cylinder device 38 is activated, the lever 35 is rotated upward, and the positioning pin 37 is inserted into the positioning hole 1 of the printed circuit board 1.
7, and the printed circuit board 1 is positioned. Next, the center stopper 52 is pulled down, and the table 20 is moved in the direction of arrow C along the X axis.

As described above, according to the processing table device for printed circuit boards, etc. of the present invention, the table is movable only along one axis direction that connects the supply device and the take-out device, and the other axis is orthogonal to the other axis direction. There is no risk that this table will hit the supply device and the take-out device, and there is no need to lift the supply device and take-out device as in the prior art example mentioned at the beginning. Furthermore, since there is only one table, the moving weight can be significantly reduced compared to the conventional one, the dynamic characteristics can be improved, and it is possible to drive at high speed. Experiments have shown that the switching time between taking out and supplying printed circuit boards can be reduced to about 1/3 compared to the conventional method.

Furthermore, the processing table device of the present invention has a simple and robust structure, and can shorten travel time and printed circuit board switching time, so it has a wide range of applications, not only for processing printed circuit boards but also for other items. be.

[Brief explanation of the drawing]

Figures 1 and 2 are perspective views of the printed circuit board;
3 to 6 show a conventional example, in which FIG. 3 is a perspective view, FIG. 4 is a perspective view of essential parts, FIG. 5 is a schematic plan view, and FIG. 6 is a schematic front view. Figures 7 to 12
The figures show one embodiment of the present invention, and FIG. 7 is a perspective view;
Figure 8 is a cross-sectional view of the conveyor section, and Figure 9 is a cross-sectional view of the conveyor section.
10 to 12 are schematic plan views showing the movement order of the table. 1... Printed circuit board, 17... Positioning hole, 1
8... Printed circuit board supply device, 19... Printed circuit board take-out device, 20... Table, 23... Table movement motor, 27, 28... Conveyor (conveyance device), 23... Slide block, 31...
...Slide block moving motor, 35...Lever, 37...Positioning pin, 38...Cylinder device.

Claims (1)

[Claims] 1 Regarding a processing table device installed between a supply device and a take-out device for printed circuit boards, etc., the processing table device is capable of reciprocating along the direction of the other axis orthogonal to the direction of one axis connecting the supply device and the take-out device. A processing table for processing printed circuit boards, etc., characterized in that a table is provided, a transport device for transporting printed circuit boards, etc. is provided on the table along one axis direction, and a positioning device for the printed circuit boards, etc. is provided on the table. Device.