Six points of nc lathe clamping attention

Source: Huida Metal

Lathe factory production of CNC lathe processing technology and ordinary lathe processing technology, but, CNC lathe belongs to a one-time clamping, automatic and continuous processing to complete all the turning process, so in the process of clamping should pay attention to the following aspects.

First, the need to reasonably choose the amount of CNC lathe cutting

Whether CNC lathe can play lathe power and cutting tool cutting performance, mainly lies in the choice of cutting dosage is scientific and reasonable, reasonable cutting amount to achieve high yield, low cost and safe operation has a very important role. When coarse car, the first is about to consider to choose a turning back as large as possible, then need to select a larger feeding, then need to determine an appropriate cutting speed, turning to increase, can reduce the number of feeding corresponding, convenient while feeding the increase of chip breaker, so according to the principle of the above, The choice of rough cutting dosage for improving the efficiency of processing production, and can reduce the loss of tools, and reduce the cost of processing are favorable. When fine cars, the surface roughness and machining precision to the higher requirements, the machining allowance is not big and relatively uniform, so when choosing the dosage of the finish turning cutting, should consider how to guarantee the machining quality, and on this basis, as far as possible to improve the production efficiency, so the essence of car should choose smaller turning and feed back as far as possible, but not too small, And the choice of cutting performance of high cutting material and reasonable geometric parameters, in order to improve the cutting speed as much as possible.

Two, the choice of tool needs to be reasonable

In order to reduce the time of tool change in the lathe factory and to facilitate the tool, machine clamping knife and machine clamping blade should be used as far as possible. When the rough car, the need to choose better durability, higher strength of the tool, is mainly convenient to meet the rough car when the large back knife quantity, large feed requirements. When finishing the car, the need to choose higher precision and better durability of the tool, mainly to ensure the processing accuracy of the requirements.

Three, the reasonable choice of fixture

As far as possible to choose universal fixture to clamp the workpiece, avoid the use of special fixture. The positioning datum of the parts coincide to reduce the positioning error.

Four, determine the processing route of CNC lathe

Its processing route is mainly exponential control machine tool in the process of production and processing, for the tool relative parts of the direction of motion and trajectory. The machining route should be shortened as much as possible, the idle time of the tool should be reduced, and the machining accuracy and surface roughness should be guaranteed.

Five, processing allowance and processing route

Nowadays, the CNC lathe has not reached the condition of universal use, usually should put the blank on too much allowance, especially including forging, casting cortex allowance arrangement in ordinary lathe processing, if must need CNC lathe processing, then should pay attention to the flexible arrangement of the program.

Six, for the installation of fixture points.

Factory for the lathe CNC lathe hydraulic clamping and hydraulic clamping cylinder connections is needs to be accomplished by rod, hydraulic clamping clip critical point specific as follows, you will need to unload oil cylinder with move hand nut, and then drawn tube, and from the spindle backend, and then with a moving hand chuck fixed screw, will be able to unload chuck.