JPS62295123A - Automatic position display device - Google Patents

Abstract

PURPOSE:To decrease product cost by assembling a general-use sliding projector with a clear existing performance and an X-Y positioning device and constituting a system. CONSTITUTION:To a board 1 in which a substrate is placed and a repairing work is executed, the light projected from a projector 2 permeates a slit plate 3 and the mark is projected. An X-Y table 5 to drive the slit plate 3, the projec tor 2, etc., are fixed to a frame A6, and further, fixed rotatably to a frame B9. A frame C12 is shiftably fixed in the upper and lower directions to the board 1 through a Z shaft rail 14 and an automatic position display device is constituted. The general-use projector 2, X-Y table 5, etc., are used and the whole system is constituted by assembling this.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Technical Field] This invention relates to an automatic position pointing device using an optical spot.

[Prior art and its problems]

Conventionally, methods using laser light have been used for these purposes, but this method requires extremely precise control of the laser light generator and the position of the spot projected by the laser light. Specially designed mechanical equipment is required, resulting in an extremely expensive product, and development to achieve this purpose is extremely difficult both in terms of time and economy.

〔the purpose〕

In order to eliminate these drawbacks, the present invention is a system that combines a general-purpose slide projector and a general-purpose X-Y positioning device.

As mentioned above, this invention secures the performance required for practical use at a low cost by combining commercially available devices whose performance has been confirmed.In addition, by using a projector, spots for auxiliary marks in addition to the main mark can be projected. The purpose of this invention is to provide an automatic indicating device for defective parts of a board, etc., which is inexpensive and has a simple manufacturing process.

Furthermore, the present invention can be used for position display systems for various purposes in addition to automatic display of defective locations on circuit boards.

The defective parts are memorized in the 11th order using an automatic board checker, etc., and the data is sequentially updated 5 times based on this as necessary.
Through the controller and driver of this device,
The Y table is operated, the mark on the slit plate directly connected to it is moved to a predetermined location, the light from the projector that passes through this mark is focused on the substrate, and the spot is formed at that location within a predetermined error. This allows workers to instantly recognize the location and perform repair work easily.

〔Example〕

1) Structure, wiring, etc. of embodiments The present invention will be described in detail below. First, in Figure 1, 1
is a board on which a board is placed and repair work is performed; the light projected from the projector 2 passes through the slit board 3, and the mark on the slit board is projected onto the board surface. Reference numeral 4 is a supporting metal fitting that connects the thrust to the X-Y table 5, and the slit plate is interlocked with the X-Y table. The X-Y table, projector, etc. are fixed to rack A of 6. Shelf A
can be rotated by a predetermined angle about the pin 7 with respect to the rack B 9.

It is fixed with knob 8. Frame B can be rotated by a predetermined angle left and right around pin 10 with respect to frame C of 12.
It can be fixed with the knob 1. Both are used only during initial adjustment or adjustment in special cases.

The rack C can be moved up and down a predetermined length with respect to the board via the Z-axis seal 14, and can be fixed with the knob 13. This is useful if the size of the board changes or the projection magnification needs to be changed. It is used for such things.

Next, in Figure 2, board 1 has 14 and 17 on leg 13.
It is attached via pins, and its inclination can be changed as needed by 15 plate rails, and fixed with 16 knobs.

Next, in FIG. 3, upon receiving an input signal for determining the position of the spot on the board, the controller 18 makes necessary calculation corrections and sends the results to the driver 19. Here, the signal is converted into power and sent to the X-Y table 5 to drive its stepping motor to move the slit plate 3 to the required position through the support hardware 4.

Further, as described above, the mark on the slit plate is projected onto a predetermined position on the first board by the projection of light from the second projector. By operating the 20 operation switches, data can be retrieved and other necessary operations can be performed via the controller.

2) The positional data of defective parts on the board, etc. input to the motion controller is calculated and corrected, and then converted to power by a screwdriver, which operates the pulse motor of the X-Y table to move it to the specified position. let The slit plate, which is directly connected to this by a supporting hardware, moves and stops at a position accurately based on the above-mentioned position data.

Since these things can be easily accomplished using common techniques, the details will be omitted.

The projected light from the projector passes through the slit plate and onto the surface of the substrate placed on the board.

Project the spots according to the marks made on the slit plate. At this time, the focal length can be adjusted by adjusting the position of the objective lens of the projector, and the projection magnification depending on the size of the substrate can be changed by adjusting the frame C up or down.

Note that the marks made on the slit plate include a main mark that indicates a designated location in a small size and a large auxiliary mark surrounding the main mark, so that two workers can efficiently find the designated location.

3) Improvements over the conventional technology (1) The system was constructed by adopting and combining general-purpose devices whose performance etc. are already clear, and also ensured a level of precision that would not pose a problem in practical use.Significant development cost compared to K. It was possible to save time and reduce the cost of the product.

(2) A projector is used in this system, making it possible to use a newly invented mark that can be instantly identified by workers.

〔effect〕

The present invention can configure a system with practical precision by combining existing general-purpose commercially available devices with clear performance, and there is no need to design and manufacture new high-precision devices. There are many advantages over doing it the other way.

That is, the price is low by 1°.

2. The manufacturing process is simple.

3. Manufacturing time is short.

[Brief explanation of drawings]

FIG. 1 shows the main configuration of an embodiment of the present invention. In the figure, 1: board, 2: projector, 3 Nislit board, 5: X-Y table, 6: rack A, 9: rack B,
12: Frame C, 14: Z-axis rail. FIG. 2 shows a board according to an embodiment of the present invention. In the figure, 1: board, 2: rack C, 13: legs, 15: board rail. FIG. 3 is a system diagram of an embodiment of the present invention. In the figure, 18: controller, 19 driver, 5: X-Y table, 2: projector. 3 Nis Ride, 1: Board. Figure 1 Main Ukapa Figure 2

Claims (1)

[Claims] 1. Applying an optical spot to a predetermined position of an object to be inspected;
The automatic position display device for displaying the position includes a means for capturing position information of the spot display position of the object, a projector capable of projecting a necessary range at a necessary magnification, and a projector located at a position corresponding to the object to be inspected; A slit plate that projects a spot mark on the inspection object by receiving the projection light of the projector, an X-Y table that is directly connected to the slit plate and operates in the X-axis and Y-axis directions, and the spot mark on the slit plate is inspected using the above position information. An automatic position display device comprising means for controlling an X-Y table so that an object is displayed at a predetermined position. 2. The automatic position display device according to claim 1, wherein the spot mark made on the slit plate is composed of a main mark that indicates a small and limited specified location and a large auxiliary mark surrounding the main mark.