在机械加工中,对批量小和规格多的齿条加工,使用专用机床是不经济的。而利用插齿机上加附件的方法来进行加工,也存在许多局限性。目前大多数工厂都采用铣床或铇床等通用机床来加工齿条,但这些机床的走刀母丝杠却远远不能满足齿条加工的齿距精度要求。如果提高这类机床母丝杠的精度,则成本太高。而且,因为是通用机床,精度不易保持很久。依靠一些齿距样板、齿距对块等专用工具及较高熟练程度的工人,这样做效率很低,而且质量不稳定。如利用光学读数头与金属刻线尺,则能达到较高的精度,但 In machining, the small size and specifications of the rack processing, the use of special machine is not economical. The use of gear shaper attachment method to carry out processing, there are many limitations. At present, most factories use general-purpose machine tools such as milling machines or broom beds to process racks. However, the walking bites of these machines are far from meeting the precision requirements of the rack processing pitch. If you increase the accuracy of such a machine billet, the cost is too high. Moreover, because it is a universal machine, precision is not easy to maintain for a long time. Rely on some pitch patterns, tooth pitch on blocks and other specialized tools and workers of higher proficiency, doing so is inefficient and unstable in quality. Such as the use of optical reading head and metal ruler, you can achieve higher accuracy, but