在普通机床上加工高精度长齿条,其周节相邻误差较为容易控制,而控制周节累积误差却困难得多。常用的铣磨齿条方法有齿轮分齿法扣块规分齿法。由于通用铣床的工作台丝杆不是π丝杆,分齿挂轮只能近似分度;齿轮磨的工作台丝杆虽是π丝杆,但行程较短,挂分齿挂轮也有困难。而用块规 Machining high-precision long racks on a common machine tool makes it easier to control the error in the adjoining peripheries while controlling the cumulative error in the perimeter is much more difficult. Commonly used method of milling the rack with gear sub-tooth buckle block metric tooth method. Because universal milling machine screw table is not π screw, sub-gear can only be divided into approximately indexing; gear grinding table screw is π screw rod, but the shorter stroke, hanging points tooth wheel is also difficult. With block rules