JPH02284672A - Method for positioning origin in coating device - Google Patents

Abstract

PURPOSE:To fix a gap by operating XYZ tables while observing the end of a needle and the end of a part or a jig with a microscope and approaching the needle tip to the part end as close as possible while obviating their contact. CONSTITUTION:A hand operated pulse generator connected to a controller 16 is operated while observing the tip edge 1sb of the needle 1 and the protruding edge 11tb of a mounting jig 11 through the edge 1sb of the needle 1 by the microscope 17b from the visual point 18b. The automatic XYZ tables 14, 13 and 12 are moved to approach the tip edge 11sb of the needle to the protruding edge 11tb as close as possible while preventing their contact. Under such conditions, the controller is operated, and the positions of the automatic XYZ tables 14, 13 and 12 are read in the controller 16 as the action origin. By this method, the mounting jig is positioned with high precision, and coating is carried out with high precision.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a method for determining the origin of a coating device when applying a liquid or slurry substance (hereinafter referred to as "liquid") to a part using the coating device. It is something.

[Conventional technology]

When applying a liquid to a part, put the liquid into a cylindrical container such as a syringe (hereinafter referred to as a "syringe"), attach a needle to the tip of the syringe, and use a pressurizer with a pressure adjustment function (hereinafter referred to as a "pressurizer"). Pressure is applied using air, etc. As a result, the liquid in the syringe is discharged from the needle and applied to a predetermined area.

An example of a conventional coating device is shown in FIGS. 10 and 11 and will be described. Bracket 7 and automatic X-table 1 on frame 15
4. An automatic Y table 13 and an automatic Z table 12 (hereinafter referred to as automatic XYZ table) are installed, a component mounting jig 11 is provided thereon, and the component 10 is placed thereon. On the other hand, a syringe 2 is installed on the bracket shaft 7 via a mounting fitting 5 and a screw 6, and a needle 1 is installed at the tip of the syringe 2. The inside of the syringe 2 is pressurized with a pressurizer (not shown) via the M3 tube 4 communicating therewith. Due to this pressurization, the liquid (not shown) in the syringe 2 is discharged from the syringe 2. The position of the needle 1 is regulated by a positioning jig 8 which is fixed to the bracket l-7 with a screw 9.

When discharging liquid from needle 1, automatic XYZ
The table 14.13.12 is moved to move the component 10 on the mounting jig 11 into position relative to the needle l. Next, pressurization No. 13 is input to the pressurizer to pressurize the inside of the syringe 2 and discharge the liquid. Automatic XYZ table 14/1
Using parts 3 and 12, move the part 10 to the tip 1s of the needle 1 in a trajectory that creates the shape you want to coat, and start coating.

[Problem that the invention seeks to solve]

In order to keep the positional error of the applied liquid within ±0.11 m, the positional relationship between the operating origin of the automatic XYZ table (not shown) and the needle I tip 1s must be maintained within an error of 0.1 tm. It is necessary to be present. In other words, syringe 2
Even when the liquid in the tank is empty and you refill it after refilling,
It is necessary that the tip 1s of the needle 1 always have an error within ±0.1 with respect to the operating origin. However, this was not possible due to the following reasons.

■The syringe 2 is usually made of synthetic resin, and can be easily deformed by simply tightening the screw 6, and the ISO position of the tip can be moved.

■The needle 1 is inserted into the syringe 2 by hand or using a tool, but the insertion depth and angle differ each time.

■Tip 1. A positioning jig 8 was used as shown in Fig. 11 to maintain the position accuracy on the horizontal plane of the needle 1.
The regulating hole 8a was thicker than the outer diameter of the needle and had a gap so that it could be tilted freely.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention includes an XYZ table that can move left and right, front and rear, and up and down, a mounting jig provided on the jig, a control device that can store and calculate the position of the XYZ table, and It consists of a needle tip and a microscope that can observe the end of the part or the end of the jig.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 9. In FIGS. 1 to 9, automatic XYZ tables 14, 13, and 12 and a microscope 17 are provided on a pedestal 15. These tables 14, 13, 12 with signal line/power line 19
A control device 1G (hereinafter referred to as a control device) capable of storage and calculation is connected to the control device 1G.

Each of the tables can be operated arbitrarily by a program that is manually input to the control device 16 in advance, and by a manual pulse generator (not shown) connected to the control device 16.

On the automatic Z table 12 is a mounting jig 1 with a protrusion 11t.
1 is provided, and the component 10 is placed on this. bracket(
The syringe 2 is fixed to the pedestal 15 via a screw (not shown).

M (not shown) inside the syringe 2 and pressurizer (not shown)
Communication occurs via a tube (not shown). Pressurize the inside of the syringe 2 with a pressurizer. As a result, liquid is discharged from the needle 1.

Next, the operation will be explained using FIGS. 2 to 9. Second
In FIG. 3, while viewing the tip edge Isb of the needle 1 and the protruding edge 11th of the mounting jig 11 through the microscope 17b from the viewpoint 18t), the manual pulse connected to the control device 16 is shown. A generator (not shown) is operated to move the automatic XYZ tables 14, 13, and 12 to bring the tip edge 1lsb of the needle and the protrusion edge 11th as close as possible without contacting each other. Similarly, the tip edge lsa of the needle and the protrusion edge lta are brought as close as possible without coming into contact with each other. In this state, operate the control device to automatically
The positions of the Z tables 14, 13, and 12 are read into the control device 16 as operation origins.

In this case, as shown in FIGS. 4 and 5, the lower end center 1se of the needle and the protrusion edge 1ltc are brought as close as possible without touching each other, and the positioning is performed as seen from the viewpoint 18b, and similarly, the positioning as seen from the viewpoint 18a is determined. The position may be read into the control device 16 as the operation origin.

In addition, as shown in FIGS. 6 and 7, for installation without protrusions, use the end edge 11th of the jig 11F, and set the operating origin in the same manner as in FIGS. 4 and 5. It may also be read into the control device 1G.

Furthermore, as shown in FIGS. 8 and 9, the operating origin may be read into the controller 16 using the end edge 10e of the component 10 in a manner similar to that in FIGS. 4 and 5. .

For example, a microscope with a magnification of 40 times is used, and positioning is performed so that the positioning error is less than ±Q, l weight.

〔Effect of the invention〕

As explained above, according to the present invention, the lower end ISO predetermined portion of the needle and the predetermined portion of the mounting jig or component can be positioned within an error of ±0.1 n, and the position can be set as the operating origin. Highly accurate coating can be performed by reading the information into the control device as .

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing the configuration of the present invention, FIG. 2 is a first embodiment showing the planar relationship between the mounting jig, needle, and microscope in FIG. 1, and FIG. -A, Figure 4 is the first
A second embodiment showing the planar relationship between the mounting jig, the needle, and the microscope shown in the figure. A third embodiment showing the planar relationship, FIG. 7, is shown in the arrow direction of FIG.
The figure is a fourth embodiment showing the planar relationship between the mounting jig, parts, needle, and microscope in Figure 1, and Figure 9 is in the direction of arrow D in Figure 8.
-D. Fig. 10 is a diagram showing an outline of the conventional configuration, and Fig. 11 is a drawing showing the outline of the conventional configuration.
2 is a drawing showing the relationship between the needle in FIG. 0 and a positioning jig. l...needle, ls...needle tip, 10...
- Parts, 11... jig, 12... automatic Z table, 13... ICY table, 14... automatic X table, 16... control device, 17... microscope. 2gJ Figure 1 18b Figure 3 Figure 18b Figure 1F Figure 10

Claims (1)

[Claims] A signal line connects the XYZ table and a control device capable of memory calculation, and a jig is provided on the XYZ table,
In a method for finding the origin of a coating device that places a component on the jig, the XYZ table is operated while observing the needle tip and the end of the component or the edge of the jig with a microscope, and the needle tip and the component are placed on the jig. or the end of the jig as close as possible without touching,
A method for determining an origin in a coating apparatus, characterized in that the position of the Z table is read into the control device and used as a de facto origin of operation.