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在工厂中需要加工单件或几件精度较高的工件,如多孔钻模板,孔数较多而分布不规则的箱体等,一般可用栽坐标工艺来解决。组装出来的夹具可以用钻床、铣床或普通镗床,根据坐标位置经过精密对刀后,即可加工工件孔,其孔距误差值可达到±0.02～0.06mm。即可以用精度较低的机床,加工出位置精度要求较高的工件。如一般中小型工厂缺少坐标镗床,就可以应用栽坐标工艺来解决精密孔的钻、铰、镗加工了。栽坐标工艺主要内容如下:先在被加工工件表面划出各孔中心线,预钻出比要加工孔径小的孔,或攻
In the factory need to process a single piece or a few pieces of high precision workpieces, such as porous drill template, the number of holes and irregular distribution of the box, etc., generally available planting coordinate process to solve. The assembled fixture can be drilled, milling machine or ordinary boring machine, according to the coordinate position after precision knife, the workpiece hole can be machined, the pitch error of up to ± 0.02 ~ 0.06mm. That is, you can use the less accurate machine tools, machining a workpiece with high position accuracy requirements. Such as the general lack of coordinate small and medium-sized factory boring machine, you can use the coordinate process to solve the precision drilling hole drilling, reaming, boring process. Catch the main process is as follows: The first workpiece surface to be drawn in the hole centerline, pre-drilled holes to be processed smaller than the hole, or attack