Dual-pass trigger amplification filtering grounding protection circuit for milling machine

Abstract

The invention discloses a double-pass trigger amplification filter grounding protection circuit for a milling machine. The trigger amplification filter grounding protection circuit is composed of a trigger chip U1, an operational amplifier P1, an operational amplifier P2, an operational amplifier P3, a MOS transistor Q1, a triode VT1, and a triode VT2 and two-way thyristor VS1 and other electronic components. The invention provides a double-pass trigger amplification filter grounding protection circuit for milling machines, which can well replace the expensive micro-controller in the existing intelligent braking device and be installed on the milling machine. It can quickly cut off the power supply to the drive motor in the milling machine when the signal is signaled, thus protecting the safety of the production equipment and operators, and can also automatically switch the power supply when there is a problem with the power supply, further improving the stability of the circuit operation. The use effect of the product is greatly improved, and the unexpected expenditure of the enterprise is reduced.

Description

technical field [0001] The invention relates to a grounding protection circuit for triggering, amplifying and filtering, in particular to a two-way triggering, amplifying and filtering grounding protection circuit for milling machines. Background technique [0002] A milling machine is a machine tool with a wide range of uses. It can process planes (horizontal planes, vertical planes), grooves (key slots, T-shaped slots, dovetail slots, etc.), toothed parts (gears, spline shafts, sprockets), Spiral surface (thread, spiral groove) and various curved surfaces. In addition, the milling machine can also be used to process the surface and inner hole of the rotating body and cut off the work. When the milling machine is working, the workpiece is installed on the worktable or the accessories such as the indexing head. The main movement of the milling cutter is the rotation, supplemented by the feed movement of the worktable or the milling head, and the workpiece can obtain the req...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the above problems, to provide a two-way trigger amplification filter grounding protection circuit for milling machines, which can well replace the expensive micro-controller in the existing intelligent braking device and set it on the milling machine. When receiving the signal of foreign objects approaching the cutter head, it can quickly cut off the power supply to the drive motor in the milling machine, thus protecting the safety of the production equipment and operators, and can also automatically switch the power supply when there is a problem with the power supply, further improving the The stability of the circuit operation also greatly improves the use effect of the product and reduces the unexpected expenditure of the enterprise

Images