Functional application of countersunk and deep hole machining instructions

First, countersunk head hole processing instructions

In the drawing of parts, for the hexagonal bolt fixing holes, we usually want to design a step hole, there will be a countersunk head hole, we need to use different machining instructions to complete.

Countersunk head hole processing instructions for the G82, its instruction format for the G82 X_ Y_ Z_ R_ P_ F_

XY is the position of the drilled hole;

Z is the depth of the drilled hole, counting from the R point;

R is the return point;

P is the pause time at the bottom of the hole (unit 0.001 second);

F is the cutting speed;

For the processing of countersunk holes, according to the process requirements we need to bring the countersunk hole position to get a smooth step surface, it is necessary to let the tool stay in the position for a period of time, light out of this step surface. Its application with the drilling of shallow holes is very similar to the instruction, we also use the tool and workpiece illustrations to more intuitively represent its function.

Second, deep hole machining instructions

For deep hole machining we will be more confused with the shallow hole machining what is the difference? Yes, for shallow hole machining chip removal is generally not a problem, but for deep hole machining of the accumulation of iron chips can not be discharged in a timely manner, will cause damage to the surface of the workpiece, so that the surface is not bright, and secondly, it will also damage the tool, affecting the service life of the tool, and in serious cases, there will be a jamming, so that the tool crumbles. Therefore, we require that the tool be lifted out at every certain depth of drilling in deep hole machining to discharge the iron chips for further processing.

The deep hole instruction is G83, and its instruction format is G83 X_ Y_ Z_ R_ Q_ F_

XY is the drilling position;

Z is the depth of the hole, counting from the R point;

R is the return point;

Q is the depth of each cutting feed;

F is the cutting speed;

In order to represent the drilling instruction more intuitively, we also use the relative position of the tool and the workpiece graphically to represent its function.