Page 29 - 《橡塑技术与装备》英文版2025年12月

MACHINERY AND MOLD

Process method for machining rotor shafts using

ESPRIT and MAZAK E670H turning and milling

combined machining

Chen Jian
(Yiyang Rubber & Plastics Machinery Group Co. LTD., Yiyang 413000, Hunan, China)

Abstract: This article takes the rotor shaft of the GE1000T internal mixer as an example, dissecting the
external structure, machining characteristics, dimensions, and geometric elements of the part, and carrying
out the design of the overall process flow. It focuses on the design of the finishing process on the turning
and milling compound equipment, comprehensively analyzing the semi-finishing turning reserved blank,
positioning clamping, tool selection, machining parameters, tool path trajectory, the use of center frame
and tip attachment, NC code, and other contents. The optimization design of each step in the turning and
milling compound finishing process is carried out, especially focusing on the difficulties encountered during
the machining process, such as the control of finishing turning dimensions and roughness, deep hole drilling
methods, etc. At the same time, the exploration of the MAZAK E670H 6000U equipment and ESPRIT software,
as well as the method of combining software and hardware, is conducted.
Key words: rotor shaft; turning and milling; MAZAK; ESPRIT; turning; deep hole drilling
Classification number: TQ334.41 Article number: 1009-797X (2025)12-0023-11
Document code: B DOI: 10.13520/j.cnki.rpte.2025.12.007

0 Preface mixer, being the largest and most precisely required shaft-
Currently, domestic turning and milling compound type part in the mixer equipment. Currently, our company has
equipment, especially large-scale ones, has not yet become developed the GE1000T meshing internal mixer, which is the
widespread in the rubber and plastic equipment field. Our largest model of internal mixer in China. Its rotor shaft is 4
company is the first to use turning and milling compound meters long, with a diameter of 520 mm, and a gross weight
equipment in this field. The MAZAK E670H 6000U-6 m of approximately 5 tons, making it a large-scale shaft-type
and 4000U-4 m, 7-axis 5-link turning and milling compound part. In the past, the manufacturing of the rotor shaft involved
machine tools we use, integrate functions such as turning, multiple processes such as turning, grinding, scribing, and
milling, drilling, boring, and long boring bars, shortening the drilling, which were relatively scattered and required a long
product manufacturing process chain and improving production manufacturing process chain.
efficiency; reducing the number of clamping operations and Large-scale turning and milling compound machining
enhancing machining accuracy. At the same time, they have is rarely applied domestically, especially in the internal mixer
an online detection function that allows precise control of
dimensions. They are mainly used for machining rotor shafts, Biography: Chen Jian (1985-), senior chief engineer, senior engineer,
and technician.
rotor bodies, conical screws, and other disc-type and shaft- He is a senior member of the China Mechanical Engineering Society and
type components, as well as components with complex curved primarily engages in research on digital manufacturing and processes. He
surfaces. has been granted 8 national patents, 2 provincial and ministerial patents,
and 6 municipal patents. He has published multiple papers in national-level
The rotor shaft is the core component of the internal scientific and technological journals.

Vol.51 51 卷 ·23·
年，2025
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