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06
October
2016
1794 read
The problems to be noticed in the process of NC lathe turning
1 reasonable selection of cutting parameters.
2 reasonable choice of cutting tools:
(1) thick, high strength, resistant to choose the tool use fee, in order to meet the large depth of rough car and feed requirements.
(2) concrete mixer truck, to choose high precision, durable tool to ensure the processing accuracy of the request.
(3) to reduce tool change time and convenient tool, should be taken as far as possible and machine clip folder knife blade.
3 reasonable choice of fixtures:
(1) as far as possible the use of universal fixture to clamp the workpiece, to prevent the use of special fixture;
(2) the base of the whole machine is coincident, so as to reduce the positioning error.
4 determine the processing route:
Machining route refers to the process of NC machine tool machining, tool path and direction of the activity of the absolute.
(1) should be able to guarantee the processing precision and the name of the rough requirements;
(2) should be as far as possible to shorten the processing line, reduce the tool empty travel time.
With 5 processing line and machining allowance: at present, the CNC lathe has not yet reached the premise throughout the application, the individual should be too rough on the margin, especially with forging casting hard layer residual domination in ordinary lathe. If you need to use CNC lathe processing, it is necessary to pay attention to the deployment of the program.
6 fixture points: the current hydraulic chuck and hydraulic clamping cylinder is realized by bars, as shown in figure 1. The following points: first, using hydraulic chuck spanner nut on the hydraulic cylinder under unloading, unloading tube, and pulled out from the rear end of the main shaft, and then move hand unloaded Chuck Screw, can remove chuck.
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