The pair of screw rotors is a key element of a twin-screw compressor, and rotor tooth modification has gradually received attention because it can reduce operating compressor noise. Current rotor machining references are mainly related to forming tool design or abrasion of the “horizontal” grinder, but little attention has been paid to form grinding using a “vertical” grinder and simulating the machining flexibility of each grinder axis. Therefore, this paper established a general coordinate system for the screw rotor form grinding and connected it to a vertical five-axis computerized numerical control form grinder to simulate rotor grinding and tooth modification. Further, the influence of a form grinding wheel contour designed by different declination angles of a rotor tooth profile on a grinding rotor tooth and the influence of the motion parameter of each axis on the machining precision of the rotor and the tooth shape are proposed in this paper.

References

References
1.
J.
Sauls
,
2008
, “
Transmission Error in Screw Compressor Rotors
,”
International Compressor Engineering Conference
, Purdue University, West Lafayette, IN, Paper No. 1862.
2.
Shih
,
Y. P.
, and
Chen
,
S. D.
,
2012
, “
Free-Form Flank Correction in Helical Gear Grinding Using a Five-Axis Computer Numerical Control Gear Profile Grinding Machine
,”
ASME J. Manuf. Sci. Eng.
,
134
(
4
), p.
041006
.10.1115/1.4006096
3.
Litvin
,
F. L.
, and
Fuentes
,
A. F.
,
2004
,
Gear Geometry and Applied Theory
,
2nd ed.
,
Cambridge University Press
,
Cambridge, UK
.
4.
Litvin
,
F. L.
, and
Feng
,
P. H.
,
1997
, “
Computerized Design, Generation, and Simulation of Meshing of Rotors of Screw Compressor
,”
Mech. Mach. Theory
,
32
(
2
), pp.
137
160
.10.1016/S0094-114X(96)00036-5
5.
Xing
,
Z. W.
,
2000
,
Screw Compressors: Theory, Design and Application
,
China Machine Press
,
Beijing, China
(in Chinese).
6.
Stosic
,
N.
,
Smith
,
I. K.
, and
Kovacevic
,
A.
,
2005
,
Screw Compressors: Mathematical Modeling and Performance Calculation
,
Springer
,
Heidelberg, Germany
.
7.
Kovacevic
,
A.
,
Stosic
,
N.
,
Mujic
,
E.
, and
Smith
,
I. K.
,
2007
,
CFD Integrated Design of Screw Compressors
,”
Eng. Appl. Comp. Fluid
,
1
(
2
), pp.
96
108
. Available at: http://jeacfm.cse.polyu.edu.hk/
8.
Wu
,
Y. R.
, and
Fong
,
Z. H.
,
2008
, “
Rotor Profile Design for the Twin–Screw Compressor Based on the Normal–Rack Generation Method
,”
ASME J. Mech. Des.
,
130
, p.
042601
.10.1115/1.2839003
9.
Guo
,
C. S.
, and
Tang
,
Y.
,
2003
, “
Screw Rotor Profile Manufacturability
,”
Mach. Sci. Technol.
,
7
(
1
), pp.
53
64
.10.1081/MST-120018955
10.
You
,
H. Y.
,
Ye
,
P. Q.
,
Wang
,
J. S.
, and
Deng
,
X. Y.
,
2003
, “
Design and Application of CBN Shape Grinding Wheel for Gears
,”
Int. J. Mach. Tools Manuf.
,
43
, pp.
1269
1277
.10.1016/S0890-6955(03)00106-8
11.
Stosic
,
N.
,
2006
, “
A Geometric Approach to Calculating Tool Wear in Screw Rotor Machining
,”
Int. J. Mach. Tools Manuf.
,
46
, pp.
1961
1965
.10.1016/j.ijmachtools.2006.01.012
12.
Chiang
,
C. J.
, and
Fong
,
Z. H.
,
2010
, “
Design of Form Milling Cutters With Multiple Inserts for Screw Rotors
,”
Mech. Mach. Theory
,
45
, pp.
1613
1627
.10.1016/j.mechmachtheory.2010.06.012
13.
Wei
,
J.
,
Zhang
,
Q.
,
Xu
,
Z. Z.
, and
Lyu
,
S. K.
,
2010
, “
Study on Precision Grinding of Screw Rotors Using CBN Wheel
,”
Int. J. Precis. Eng. Manuf.
,
11
(
5
), pp.
651
658
.10.1007/s12541-010-0076-2
14.
Chen
,
C. H.
,
1995
, “
Screw Compressor With Rotors Having Hyper Profile
,” U.S. Patent No. 5454701.
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