Definition of non-standard precision machining

There are different definitions for different understandings in non-standard fine machining. So how do you correctly define non-standard fine machining? Time and fine machine processing Xiaobian believes that: non-standard fine machining is defined as the final processing of the dimensions or functions of each workpiece in steps and steps, including workpiece parallelism, appearance brightness, appearance perpendicularity, appearance hardness, etc. , so that the processing accuracy of the parts and the quality of the processed appearance reach the process required by the drawings. Parallelism requirements The so-called parallelism requirement is the requirement for the tolerance of the surrounding parts of a non-standard machined workpiece. For example, a rectangular workpiece requires the thickness of the four corners of the workpiece to reach a certain tolerance range. If the thickness of the four sides of the measurement does not meet the tolerance requirements, the parallelism requirement is not achieved. This requires re-adjusting the workpiece. The results can be presented on the suction cup of the grinding machine. The suction cup is worn out due to excessive use, which causes the parallelism to show an error. It can also be that the grinding wheel is not trimmed well, or the grinding wheel may be cracked or notched. At this time, it is necessary to replace the new matte. Wheel; can also be the suction cup is not clean and clean, this will re-clear the suction cup, carefully clean and clean; can also be the workpiece is not trimmed, showing burrs. Verticality requirements The so-called verticality requirement requires that the front and air of the workpiece meet the tolerance requirements. The best way to understand is the cube. From the point of view of the number axis, it is divided into three sides of XYZ. Normally, XZ and YZ are required to meet the tolerance requirements. The presentation error is also roughly the opposite of the warfare requirements. In the non-standard fine machining, the verticality requirement is generally handled according to the parallelism requirement.