JPS6067885A - Device for positioning constitutional unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention fd relates to a device for positioning and fixing a component unit of a machine using an air float.

This type of conventional positioning method involves placing the component unit on the machine body, sliding it on the machine body, and placing the component unit in the Y direction against the perpendicular pin in the Y direction of the machine body, and in the X direction against the perpendicular pin in the X direction on the machine main body. The position was determined by touching the unit, and then it was fixed to the machine body with bolts via the component unit fixing plate. In such an assembly machine, if the relative positions of the component units, the pick mant place unit (hereinafter referred to as the P&P unit), and the to-be-assembled parts that are positioned and fixed on the jig board 2 are not determined, the P&P unit cannot chuck the assembled parts. A defect occurs. Therefore, despite the need for positional accuracy, in the conventional method, the frictional resistance between the component units and the machine body is large, resulting in poor sliding, and the component units may not come into contact with all the perpendicular pins of the machine body. There were many. As a result, 1-position accuracy and repeatability are unreliable, resulting in chucking and poor assembly of assembly parts, and the need to confirm and readjust the position after installing the component units, making it difficult to install or replace the component units. It takes a long time and is one of the causes of a decrease in the reliability of the machine and the rotation rate of the product, and has the drawback of increasing manufacturing costs.

An object of the present invention is to solve the above-mentioned drawback of low positioning reliability, and for this purpose, the constituent units are floated in air to reduce the frictional resistance between the constituent units and the machine body. The object of the present invention is to improve the reliability of positioning by ensuring the contact of the machine body with the perpendicular pin, thereby making it possible to shorten the time when replacing component units and improve the reliability of the machine accordingly. .

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the apparatus according to the present invention will be described below with reference to the drawings. Figure 1 is an example of an assembly machine.
Machine component unit 3 P&P unit 1 in machine body 4
FIG. 2 is a diagram in which a jig 2 and the like are attached, and the P&P unit 1 is positioned and fixed on the machine body 4. The jig board 2 on which the parts to be assembled 14 are positioned and fixed is the P&P unit 1.
It is positioned and fixed to the machine body 4 so that the position corresponds to that of the main body 4. The component unit 3 is fixed on the machine body 4 so as to be positioned relative to the P&P unit 1. That is, the X direction (rl) is positioned by abutting against the dowel pin 5 attached to the machine body 4, and the dowel pin 6 in the Y direction, and the bolt 8 is attached to the machine body via the component unit fixing plate 7. - 4. Reference numeral 9 is a nylon tube, which is connected to the component unit 6 via a joint 10. Fig. 2 is a cross-sectional view of the air flow part of the component unit 5, and 11 is a compressed air tube. Nylon tube 9 inserted into joint 10
Air pocket 1 processed into a structural unit filter that goes all the way through
2. FIG. 6 is a top plan view of the constituent unit 6 of FIG. 2, showing the processed shape of the air flow section I.12.

Next, the operation will be specifically explained. First, the operation of the assembly machine shown in FIG. 1 will be explained. One assembly part 15 is positioned and taken out from the magazine 16 attached to the component unit 6, the assembled part is chucked by the P&P unit 1, and assembled into the to-be-assembled part 14 which is positioned and fixed to the jig board 2. . After the assembly is completed, the jig board 2 is transported to the next part to be assembled and positioned and fixed again. Hereafter, the same operation is repeated.

If it is necessary to position the component unit 5 again using the above assembly machine movement path, the air 11 is moved into the air pocket 12.
The pressure of the air 11 in this air pocket lifts the component unit 3 upward, and the component unit 3
and the machine body 4 are brought into a non-contact state. Thereafter, the component unit 6 is pressed against each pin 5.degree. 6 by hand or with a pushing jig using a bolt or the like and fixed as described above. At this time,
Since there is almost no friction between the machine body 4 and the component unit 3, accurate positioning is possible.

As described above, according to the present invention, positioning accuracy and positioning reproducibility are improved compared to conventional positioning methods, and chucking and assembly defects of assembled parts are solved, making it easier to confirm and readjust positions. It is no longer necessary, and the operation rate of the machine body 4 is improved by shortening the installation and replacement time of the component unit B to the machine body 9. The reliability of the machine, the rotation rate of the product, etc. are improved, and manufacturing costs can be reduced. . Furthermore, the method according to the present invention is applicable not only to the mounting of a component unit of a machine to the machine body, but also to positioning within the component unit, and the positioning member is not only a pin but also a plate-shaped one. Needless to say, it has the same effect. The air 70 part can also be processed into a component unit to give it a function, or it can be used as an independent unit with the same effect.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an assembly machine in which the structural units of the machine of the present invention are attached to the machine body. FIG. 2 is a sectional view showing the air flow path of the component unit. FIG. 3 is a top plan view of FIG. 2. 1...P&P unit 2...Jig board 6...Configuration unit 4...Machine body 5...Performing pin for X direction 6...Performing pin for Y direction 7...Configuration Unit fixing plate 8... Bolt 9... Nylon tube 10...
Joint 11...Compressed air 12...Air pocket 15...Magazine 14...Parts to be assembled 15...Assembled parts or more Applicant Daini Seidokusha Co., Ltd. Agent Patent Attorney Mogami Tsutomu

Claims (1)

[Claims] In a device for attaching and positioning a component unit of a machine onto a machine body, an air pocket for floating the component unit with air relative to the machine body and a tube for flowing air into the air pocket are attached to the component unit so that the component unit is flattened. A positioning device for a component unit, characterized in that the component unit is moved and positioned by contacting a positioning member attached to the machine body.