Process analysis when CNC machining electronic cigarette accessories!

(1) Dimensioning in the drawing of CNC machining electronic cigarette accessories Method

The size on the accessory drawing is an important basis for manufacturing and testing accessories. The size in the accessory drawing is required to be different during production. Any errors are allowed. In addition to the correct, complete and clear requirements for dimensioning on the accessories drawing, rationality should also be considered, not only to meet the design requirements, but also to facilitate processing and measurement. Regarding dimensioning, it mainly includes functional dimensions, non-functional dimensions, nominal dimensions, basic dimensions, reference dimensions, repeated dimensions and so on. The dimensions marked in the description of the accessories are complete and correct, which makes it easy for the processor to analyze, measure and process, and determine the blank according to these dimensional accuracy.

(2), analyze geometric elements of CNC machining electronic cigarette accessories outline strong>

The outline of the accessory is mainly composed of cylindrical surface, spherical surface, groove and keyway, inner hole and so on.

(3), Analyzing the structural craftsmanship of CNC machining electronic cigarette accessories strong>

This accessory is a slender shaft. The slender shaft has the characteristics of small diameter and too long length. The length of the body is too long, and it is easy to vibrate the knife or the surface roughness value of the machining is too low, so an auxiliary tool holder and an auxiliary fixture are required for processing. Also pay attention to heat treatment, because it will be deformed after cold work hardening, and a bow or S shape will appear.  

(4), analyze the precision and technical requirements of CNC machining electronic cigarette accessories< /strong>

①, The accuracy and technical requirements of this accessory are complete and reasonable

②. The CNC machining precision in this process is relatively high, which can be achieved in CNC machine tools. In the processing, it is divided into three steps: roughing, semi-finishing and finishing.

③, the left end of the outer circle size of Φ90 in the figure has high positional accuracy requirements, all the The operation shall be completed in one set-up, except for the keyway.

④. For surfaces with high surface roughness requirements, cutting at a constant circumferential speed should be used.