What is a Metal Lathe?

Lathe machining is a part of mechanical processing. There are two main types of machining: one is to fix the turning tool to process the unformed workpiece during rotation; the other is to fix the workpiece and turn the tool (turret by the high speed rotation of the workpiece) ) Horizontal and vertical movements for precision machining. CNC lathe machining usually consists of control system, servo system, detection system, mechanical transmission system and other auxiliary systems. ^[1]

Lathe processing

Lathe processing is a part of mechanical processing. There are two main types of machining: one is to fix the turning tool to process the unformed workpiece during rotation, and the other is to fix the workpiece. Through the high-speed rotation of the workpiece, the turning tool ( Tool holder) for precision machining with horizontal and vertical movement. Also available on lathes

Usually processed using a lathe

1.It is easy to ensure the accuracy of each processing surface of the workpiece; during processing, the workpiece rotates around a fixed axis, and each surface has the same axis of rotation, so it is easy to ensure the requirement of coaxiality between the processing surfaces;

2.The cutting process is relatively stable; except for intermittent surfaces, the lathe machining process is generally continuous, unlike milling and planing. During one pass, the cutter teeth are cut in and out multiple times, resulting in Impact

3.Suitable for the finishing of non-ferrous metal parts; some non-ferrous metal parts have low hardness and good plasticity due to the material itself, and it is difficult to obtain a smooth surface by other processing methods;

4, the tool is simple; the turning tool is the simplest one of the tools, and it is easy to manufacture, sharpen and install.

I. Conscientiously implement the relevant provisions of the General Operating Rules for Metal Cutting Machine Tools.

2. Carry out the following general regulations on lathes carefully:

1. When aligning the workpiece, only use the hand plate to move the chuck or set the minimum speed to align, and do not allow the high speed to align.

2. When changing the rotation direction of the spindle, stop the spindle first, and do not change the rotation direction suddenly.

3. When loading and unloading the chuck, it is only allowed to turn the V-belt by hand to drive the spindle to revolve. It is absolutely forbidden to directly start the machine to force loosen or tighten. At the same time, planks should be placed on the bed to prevent accidents.

4. The tool installation should not extend too long. The gasket should be flat and the width should be the same as the width of the bottom surface of the tool.

5. It is not allowed to reverse the car during work to brake the spindle rotation.

3. Carefully implement the following special regulations concerning some special lathes:

(A), back wheel type lathe:

1. It is not allowed to process curved, rough surface bar.

2. When loading the material, the material head must be aligned with the chuck hole, and it should be struck gently to prevent random knock.

(2) Program-controlled transfer lathe:

According to the process requirements, pre-selection of the spindle speed, tool feed, tool trajectory and continuous offside of the step program. Put the electric knob in the "adjustment" position for the test run. After confirming that there are no problems, put the electric knob in the automatic or semi-automatic position to work.