Answer to Question #304940 in Mechanical Engineering for ravi

Question

What is tool magazine? Describe the working of tool magazine with neat sketch.

Answer 1

A tool magazine and automatic tool changer (ATC) is used to store and change tools in a machining center, which plays an important role in automatic manufacturing. Therefore, the stability and reliability of a tool magazine and ATC are very important to a machining center.

Generally, a non-contact switch is installed in the tool change position, and a baffle is installed on the No. 1 tool position. Each time the machine tool is turned on, the tool magazine must “return to zero”. When the tool magazine is rotating, as long as the baffle is close (the distance is about 0.3mm) without a contact switch, the CNC system defaults to tool No. 1. And on this basis, the “Markovian mechanism” has been turned several times, the current number of knives. As long as the machine does not shut down, the current tool number will be memorized. When the tool is changed, generally according to the principle of the nearest distance rotation, the tool number number is in the counterclockwise direction. If the number of the tool magazine is 18, the current tool number is 8, the 6th tool should be changed. turn. If you want to change the 10th tool, the tool magazine rotates clockwise. The tool memory is cleared after the machine is turned off.