Developing a tapping and drilling measurement system for a performance test using a laser diode,position-sensing detector,and laser interferometer

Abstract

Tapping and drilling are frequently used in mechanical working. Previous research on tapping and drilling has mainly focused on cutting force variations, drill and tap wearing, and drill and tap design: machine tool performance has seldom been dealt with. A novel performance test system of tapping and drilling for a computer numerical control (CNC) machine tool is established in the current paper. This system includes a two-dimensional position sensing detector, a laser source, and a laser interferometer. The laser source was fixed on the spindle of the machine tool by the cutter, and the position sensing detector was mounted on the machine tool table. The reflecting mirror of the interferometer was fixed on the z axis of the machine tool, and the laser source of the laser interferometer was mounted on the machine tool table. Therefore, the spindle errors and the z axis position of the machine tool could be recorded by the position-sensing detector and laser interferometer respectively. Consequently the spindle error and z axis motion of the machine tool in the tapping/drilling test could be measured simultaneously. The accuracy of this system in the x-, y-, and z-directions was about 1 μm in each case. The present paper describes the experiments of the position-sensing detector calibration, stability test, tapping test, and drilling test. The findings are discussed below.

Keywords

performance test tapping test drilling test spindle errors position sensing detector

References

Johnson

Some experiments on tapping. Proc. Instn Mech. Engrs, 1950 162, 412.

Stromberg

N. O.

Tap design. Tool Engr, 1942 99–104.

Kuo

L. Y.

Intelligent high-speed high-precision contour control of multi-axis CNC machines. PhD Thesis, National Taiwan University, 2002 pp. 67–99.

Hender

W. E.

On the mechanics of tapping by cutting. Trans ASME J. Engng Ind., 1977, 99, 257–262.

Dogra

A. S.

Kapoor

S. G.

DeVor

R. E.

Mechanistic model for tapping process with emphasis on process fault and hole geometry. Trans ASME J. Mfg Sci. Engng, 2002, 124, 18–25.

Mezentsev

O. A.

Zhu

DeVor

R. E.

Kapoor

S. G.

Kline

W. A.

Use of radial forces for fault detection in tapping. Int. J. Machine Tool Mf, 2002, 42, 479–488.

Cao

Sutherland

J. W.

Investigation of thread tapping load characteristics through mechanistic modeling and experimentation. Int. J. Machine Tool Mf, 2002, 42, 1572–1538.

Elhachimi

Torbaty

Joyot

Mechanical modelling of high speed drilling. 1: Predicting torque and thrust. Int. J. Machine Tool Mf, 1999, 39, 553–568.

Elhachimi

Torbaty

Joyot

Mechanical modelling of high speed drilling. 2: Predicted and experimental results. Int. J. Machine Tool Mf, 1999, 39, 569–581.

10.

Everson

C. E.

Cheraghi

S. H.

The application of acoustic emission for precision drill process monitoring. Int. J. Machine Tool Mf, 1999, 39, 371–387.

11.

Hazraa

Katob

Kurodac

Hashimotoa

Tsuchiyad

Sakumad

Practical inspection system of drill point geometry by using simple measurement jig and image processing. Precision Engng., 2001, 25 206–211.

12.

Jantunen

A summary of methods applied to tool condition monitoring in drilling. Int. J. Machine Tools Mf, 2002, 42, 997–1010.

13.

Gao

Kiyono

Satoh

Precision measurement of multi-degree-of -freedom spindle errors using two-dimensional slope sensor. Annls CIRP, 2002, 51 (1), 447–450.

14.

Jywe

W. Y.

Liu

C.H.

Chen

C. J.

Development of a simple test device for spindle error measurement using a position sensitivity detector. The 7th International Conference on Mechatronics technology (ICMT), Taipei, Taiwan, 2003, pp. 91–96.

15.

Jywe

W. Y.

Chen

C. J.

The development of a highspeed spindle measurement system using a laser diode and quadrant. Int. J. Machine Tools Mf, 2005, 45, 1162–1170.