The machining error of Automatic Parts refers to the degree of deviation between the actual geometric parameters (geometric size, geometric shape and mutual position) and the ideal geometric parameters. The smaller the machining error is, the higher the degree of conformity is, the higher the machining accuracy is. Machining accuracy and machining error are two ways of saying a problem.
- Automatic parts processing positioning error: positioning error mainly includes the datum misalignment error and positioning pair manufacturing inaccuracy error.
- Measurement error of automatic parts processing: when parts are measured during or after processing, the measurement accuracy is directly affected by the measurement method, measuring tool accuracy, workpiece and subjective and objective factors.
- Tool error: any tool in the cutting process will inevitably produce wear, and resulting in changes in the size and shape of the workpiece.
- Fixture error: the role of the fixture is to make the workpiece equivalent to the tool and machine tool have the correct position, so the geometric error of the fixture has a great impact on the machining error (especially the position error)
- Machine tool error: including spindle rotation error, guide error and transmission chain error. Spindle rotation error refers to the variation of the actual axis of rotation relative to the average axis of rotation at each moment of the spindle, which will directly affect the accuracy of the workpiece to be processed.
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