链轮齿形数控铣加工工艺研究及宏程序编制

 朱舜

(四川鸿舰重型机械制造有限责任公司,四川 攀枝花 617063)
摘要:链轮的齿形加工通常采用成型刀具在滚齿机或插床上加工,一把刀具只能加工一种尺寸的链轮,通用性不强,且成本高。国标GB/T 1243-2006中链轮的齿槽形状由三段圆弧组成,可以利用数控机床的计算功能编制宏程序,输入链轮图纸上的参数后计算出各段圆弧的半径和起点、终点坐标,再利用数控机床曲线加工能力,用铣刀沿着链轮齿形轮廓行进,加工出链轮齿形。只要立式铣刀半径小于链轮齿沟圆弧半径,就能满足加工要求,从而大大节省了成型刀具的费用。编写出的宏程序具有通用性,适用于所有国标GB/T 1243-2006中所有链轮的齿形加工。
关键词:链轮;GB/T 1243-2006;数控加工;宏程序;Siemens
中图分类号:TG547 文献标志码:B doi:10.3969/j.issn.1006-0316.2018.03.018
文章编号:1006-0316 (2018) 03-0069-06
Research on CNC Milling Process of Chain Sprocket and It’s Macro Programming
ZHU Shun
( Sichuan Hongjian Heavy Machinery Manufacturing Co. Ltd., Panzhihua 617063, China )
Abstract:Groove profile machining chain sprocket usually adopts the forming tool in gear hobbing machine or gear slotting machine, the processing forming tool, a tool can only process a dimension chain sprocket, the generality is not strong, and the cost is high. Groove profile GB/T 1243-2006 chain sprocket is composed of three sections of arcs, can use the calculation function of CNC machine, write a macro program, input parameters of chain sprocket on the drawing, reuse CNC machine curve processing ability, End mill along the sprocket groove contour traveling, machining sprocket groove. As long as the end mill radius is less than the sprocket groove arc radius, can meet the processing requirements, thus greatly save the cost of the forming tool. Write a macro program is generality, applicable to all the GB/T 1243-2006 sprocket groove processing. 
Key words:chain sprocket;GB/T 1243-2006;CNC;macro program;Siemens
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收稿日期:2017-11-03
作者简介:朱舜(1974-),男,四川资阳人,本科,机械工程师,主要从事数控加工工艺及程序编制和冶金、矿山类成套机械设备的设计研发工作。
 

 

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