蜗杆的Ø20H7，长106mm精度孔的加工、相交孔内毛刺的去除、和蜗杆

Ø20H7, 106mm long precision machining worm hole, bore intersecting burr removal, and Machining worm thread section is the difficulty of this part. For Ø20H7, 106mm long hole machining, a self-study design honing device; To solve intersecting burr hole is difficult to remove this problem, using the new decision removing special tool bore intersects solution; worm modulus larger, wide pitch, high surface roughness of the tooth surfaces, in order to overcome this problem, after repeated studies to improve the process, using an efficient processing methods: whirling, and the knives and the knife disk is improved, greatly improving production efficiency and cutting stability.

蜗杆的Ø20H7，长106mm精度孔的加工、相交孔内毛刺的去除、和蜗杆螺纹部分的加工加工是此项零件的难点。针对Ø20H7，长106mm孔的加工，研究设计了一种自制珩磨装置；为了解决相交孔内的毛刺难以去除这一难题，决定采用新型去除相交孔专用刀具解决；蜗杆模数较大、螺距宽、齿面的表面粗糙度要求高，为了攻克这个难题，经过反复研究、改进工艺流程，采用高效的加工方式：旋风铣，并对所用刀具及其所用刀盘进行改进，大大提高了生产效率及切削稳定性。

The machining of precision hole with length of 106mm, the removal of burr in intersecting hole and the machining of worm thread are the difficulties of this part. In order to solve the problem that burr in intersecting hole is difficult to be removed, a new type of special tool for removing intersecting hole is adopted. Worm module is large, pitch is wide and surface roughness of tooth surface is high. In order to solve this problem, after repeated research and improvement of technological process, an efficient honing device is adopted Machining mode: whirlwind milling, and the cutter used and the cutter head used are improved, greatly improving the production efficiency and cutting stability.