General code of turning
CNC turning tool assembly clamp
1) the tool rod holder should not be too long, should not the general length exceeds 1.5 times the height of the knife rod (except the car slot, etc.)
2) the tool rod cutting direction and center line should be perpendicular or parallel.
3) tip height adjustment:
(1) car, car, car end cone thread, vehicleforming surface and cutting solid workpiece, tool and workpiece axis should be generally high.
(2) rough turning, finishing hole, tip should generally be slightly higher than the axis of workpiece.
(3) car, slender hole, cut off the rough hollow workpiece, the tip should be slightly lower than the axis of workpiece.
4) thread lathe tool angle bisector shall be perpendicular to the axis of workpiece.
5) clamping tool, gasket cutter bar less below and flat, pressing tool to tighten the screws.
1) workpiece with three jaw self centering chuck with coarse or fine car car, if the workpiece diameter less than 30 mm, the overhang length should be less than 5 times the diameter, if the workpiece diameter greater than 30 mm, the overhang length should be less than 3 times the diameter.
2) chuck, disk with four claws, iron (bending) and clamping on irregular workpiece, must add weight.
3) to adjust the axis of the top of the shaft and the axis of the lathe before turning to the top of the workpiece.
4) when processing the slender shaft between the two centers, it should be used with the tool carrier or the center frame. In the processing process should pay attention to adjust the top of the top tight force, dead center and the center should pay attention to lubrication.
5) when the tail seat is used, the sleeve is extended as far as possible to reduce vibration.
6) the workpiece support surface is small, high in the car, should use the claw raised, and rod or clamp the workpiece in the appropriate location.
7) turning wheel type, sleeve type casting and forging, should not be machined surface to find a positive, to ensure that the processing of the workpiece wall thickness uniformity.
precision machine parts turning
1) when turning the step shaft, in order to ensure the turning of the rigid, the general should be a larger diameter of the first part of the car, after the smaller diameter of the car parts.
2) in the axis of the workpiece cutting groove, should be in the car before, in order to prevent the deformation of the workpiece.
3) the precision of the car with the thread of the shaft, the general should be processed in the screw and then the fine car parts.
4) before drilling, the work piece should be flat. If necessary, the center hole should be hit first.
5) when drilling holes, the general first drill guide hole.
6 (10) turning Phi Phi 20) mm hole, the cutter bar diameter should be 0.6 to 0.7 times the cutting diameter; diameter greater than 20 mm diameter machining hole, should generally be used
knife rod clamping cutter head.
7) turning the long thread or long worm, the adjustment of the exchange gear to be carried out after the test.
8) the use of automatic lathe, to the relative position of the tool and the workpiece to adjust the adjustment of the machine card, after a good tune to test cut, the first qualified rear can machining; machining process to keep the tool wear and workpiece size and surface roughness.
9) in the vertical lathe, when the car cut, when the tool carrier to adjust, not to move the beam.
10) when the workpiece surface has the position tolerance requirements, as far as possible to complete the turning.
11) when the gear blank of the cylindrical gear is turned, the hole and the datum end face must be processed in one time. When necessary, the mark line should be marked on the gear dividing circle of the end face.
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Making various precision metal parts depend on the requirement from the customers.