Small-batch manufacturing method of micro precision parts

Abstract

The invention provides a small-batch manufacturing method of micro precision parts, and belongs to the technical field of precision machining in machining. The mall-batch manufacturing method comprises the steps of layout planning, shape machining and part separation. Machined parts are regarded as blanking parts, waste stock layout is conducted, and the width of a landing edge is larger than thediameter of a selected machining tool; programming is conducted to achieve the effect that 1-2 mm depth is further machined in the Z-axis direction along the bottom face outlines of the machined parts, and machining of other shapes on the machined parts except the contact faces with a workbench is completed; and afterwards, connecting parts reserved between the machined parts are cut off, the machined molded surfaces on the machined parts serve as the benchmark, positioning and clamping are conducted for shape machining of the sides, originally attached to the workbench, of the machined parts,and finally manufacturing of the precision parts is completed. According to the small-batch manufacturing method, the technical problems of positioning and clamping in the manufacturing of the microprecision parts are effectively solved; the precision and the size consistency are improved, and the production cost is reduced; and a brand-new small-batch manufacturing method is provided for the micro precision parts.

Description

technical field [0001] The invention belongs to the technical field of precision processing in mechanical processing, and in particular relates to a method for manufacturing small batches of precision parts. Background technique [0002] The mass production of parts generally adopts mold forming or assembly line production with standard fixtures and manipulators; in recent years, 3D printing can also be used for the production of some small batches of parts. Mold forming has the characteristics of good dimensional consistency, high precision, high production efficiency, and less material consumption, and is especially suitable for mass production of parts. However, the manufacturing cost of the mold itself is relatively high. From the perspective of input-output ratio, it is not suitable for the manufacture of small-batch parts; also from the perspective of input-output ratio, the assembly line production method is not suitable for the manufacture of small-batch parts. Howe...

AI Technical Summary

Problems solved by technology

However, the manufacturing cost of the mold itself is high. From the perspective of input-output ratio, it is not suitable for the manufacture of small batch parts; also from the perspective of input-output ratio, the assembly line production method is not suitable for the manufacture of small batch parts.

However, due to its own principle error, the current processing error of 3D printing cannot be less than ±0.1mm, which cannot meet the manufacturing requirements of precision parts.

[0003] Clamping using standard fixtures or self-made special fixtures is one of the effective methods for small batch production of parts; but for tiny parts, there are many difficulties in positioning and clamping due to small size, narrow positioning surface, weak strength and rigidity

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