Gage Enables Accurate In-Process Measurement
The Heidenhain-Specto ST 3087 RC gage has a special housing for in-process measurements.
The Heidenhain-Specto ST 3087 RC gage has a special housing for in-process measurements. In the plunger’s rest position, it houses the plunger, the rubber bellows surrounding it and a splash guard cap to close the exit opening for the plunger in the housing. For measurement, which is normally made when the cooling lubricant is switched off, only the plunger and its bellows extend out of the housing, driven by compressed air.
Measurement is often isolated to quality islands or labs rather than fully integrated into the ongoing process. This system increases productivity and efficiency by enabling the integration of this measuring device directly into a contaminated production process.
The optical scanning provides highly accurate position values with a maximum error of ±1 µm over a 30-mm measuring range. Because of its 30-mm stroke and high accuracy over the entire measuring range, it measures diverse components from the same fixture. Optical scanning with the ball guide enables consistent repeatability when scanning oblique surfaces. The cycle time for measurements is said to be under 1.5 sec.
Few manufacturing companies rely on ballbar testing to maintain machine tool accuracy as thoroughly as Silfex. Now, advanced training and a move to a Renishaw QC20-W wireless system have enabled the company to take the benefits of ballbar testing to a higher level.
While countersunk and chamfered holes are similar in appearance, functionally they are quite different. Consequently, different gages exist to serve these different functional requirements.
The irregularity of a machined surface is the result of the machining process, including the choice of tool; feed and speed of the tool; machine geometry; and environmental conditions. This irregularity consists of high and low spots machined into a surface by the tool bit or a grinding wheel.