SU772802A1 - Apparatus for identifying tool code and standardized tool socket - Google Patents

Description

I

The invention relates to a machine tool industry and is intended to determine a tool code in a CNC boring and milling boring machine and automatic tool change.

Closest to the proposed technical solution is a device containing an optical system, the axis of which is perpendicular to the axis of the instrument, readout and reference optical fibers of the socket and instrument, as well as a photodetector array with readout and reference photodiodes. The latter are arranged in accordance with the optical fibers of the socket and tool 1.

A disadvantage of the known technical solution is that the projection of the code portion of the tool is carried out at the expense of a diverging beam of rays.

This circumstance determines the stringent requirements for the stability of the position of the tools in the direction of the optical axis of the projecting system. Violation of this stability, which occurs during operation, can lead to a false definition of the tool, which reduces the reliability of the device.

The purpose of the invention is to increase reliability by providing a constant image size when the instrument is displaced along the optical system.

This goal is achieved by the fact that the optical system is equipped with a matrix with optical fibers that are located parallel to the axis of the optical system and coaxially with photodiodes in the photodetector array. The latter is equipped with eccentric bushes in which reference photodiodes are mounted.

FIG. 1 shows a device with an instrument, a general view; in fig. 2-section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 shows a section B-B in FIG. one; in fig. 5 is a section of YYD in FIG. one.

In case 1, made in the form of a bracket, covering the coded part of the tool 2 moving in the tool shop 2, slot 3, optical system 4, the glow lamp 5, matrix 6 with optical fibers 7 and photodetector matrix 8 with reference 20 photodiodes 9 and reading (|) with diodes 10.

The optical fibers 7 forming the light probes 11 are arranged parallel to the axis of the optical system 4 and coaxially to the photodiodes 9

and 10 in the photodetector array 8 and their number and location coincides with the reading and reference fibers of the tool 2 and the socket 3.

The reference photodiodes 9 are mounted in eccentric bushings 12 of the photodetector array 8.

The device works as follows

When moving the socket 3 with the tool 2 in the store in the code reading area defined by turning the eccentric sleeves 12 with the reference photodiodes 9, the coding elements of the tool and the socket interrupt or transmit certain light probes 11 in accordance with the code of the tool and the socket. The photo-receiving matrix 8 forms the combination of electrical signals corresponding to the code of the instrument and the socket, which are fed into the automatic search system.

The present invention makes it possible to automate the search for a unified tool pocket and tool in the machine shop more reliably than the known devices for the automatic installation or removal of tools used in machines of the type "machining center."

Claims (1)

Invention Formula A device for determining the instrument code and the unified instrument socket, which includes an optical system, the axis of which is perpendicular to the instrument axis, readout and reference light guides of the socket and instrument, as well as a photodetector array with readout and reference photodiodes arranged in accordance with the socket and instrument light guides, which are different the fact that, in order to increase reliability by providing a constant image size when the tool is displaced along the axis of the optical system, with optical fiber and matrix forming probes light parallel to the axis of the optical system and coaxially photodiodes in the photodetector array, the photodetector array is provided with eccentrics, which are mounted in the fiducial photodiodes. Sources of information taken into account in the examination of 1 USSR Author's Certificate for Application No. 2624603, cl. B 23 Q 3/155, 06/23/78. Aa Vuz.Z 8-6 Fy 5-6  //////BUT / l . / 7 I eleven (PU2.3 Yr FIG. five