Signaling disc for electrical tool carrier

Abstract

The invention discloses a signaling disc for an electrical tool carrier. The signaling disc comprises a disc body, a circuit board and at least one steel magnet, wherein the circuit board is arranged in the disc body and provided with at least one sensing module, each sensing module comprises a Hall element, a current-limiting resistor, a diode and a signal output terminal, the Hall elements match with the steel magnets in one-to-one correspondence and are arranged on an edge of the circuit board, each Hall element is provided with a signal output end and an anode connection end and a cathode connection end for connecting a power supply, and the signal output ends of the Hall elements are connected with the signal output terminals after being connected with the current-limiting resistors and the diodes sequentially. The signaling disc for the electrical tool carrier has the advantages that output signals are stable and reliable, and a fault rate is reduced.

Description

technical field [0001] The invention relates to a sending disc for an electric knife rest, belonging to the technical field of electric knife rests. Background technique [0002] At present, in CNC machine tools, the indexing of the electric tool post is controlled by a microcomputer. The currently disclosed electric tool post is equipped with a sending plate, which is fixed on the main shaft of the electric tool post, and a Hall element is fixed on the sending plate corresponding to each tool post station, and a magnet is fixed on the upper tool post body. Steel, when the electric tool holder needs to be changed, under the control of the microcomputer, the motor rotates forward, driving the upper body of the tool holder to rotate, and when the magnetic steel turns to the station set in the computer control program, the station on the sending plate The Hall element on the top sends a signal to inform the microcomputer, and the microcomputer instructs the motor to reverse, t...

AI Technical Summary

Problems solved by technology

A circuit board is installed on the above-mentioned sending disc body, the Hall element is fixed upright on the edge of the circuit board, and the magnetic steel is installed on the magnetic steel bracket of the upper tool holder body, because there is no current limiting in the circuit board of the prior art Components such as resistors and diodes often experience unstable induction signals during long-term use, resulting in a high failure rate

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