THE CONTACT MEASURING 3D MEASURING MACHINE ZEISS PRISMO 7 vs. MOBIL MEASURING ARM FARO

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1 THE INTERNATIONAL CONFERENCE OF THE CARPATHIAN EURO-REGION SPECIALISTS IN INDUSTRIAL SYSTEMS THE CONTACT MEASURING 3D MEASURING MACHINE ZEISS PRISMO 7 vs. MOBIL MEASURING ARM FARO Ing.Radovan HRIVNÁK,Ing.Ján BEČKA The Department of Machining and Automation, Department of Design and Mechanical Elements, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 1, Žilina, Slovakia Abstract: My contribution includes the contact measuring the part using to the mobil measuring arm FARO and the 3D measuring machine ZEISS Prismo 7. After I was comparing the measurig process for these 2 machines (values of dimensions). Keyworks: measuring machine, part, dimension, mobil measuring arm FARO. INTRODUCTION The 3D measuring of parts is at current era more exactly measuring s way. At current era is this modern method using in bigger extent on practice (car s industry, plane s industry, procesing,...). THE EXPERIMENTS On my contribution made two experiments. The first experiment was made using the mobil measuring arm FARO (contact measuring), fig. 3 and second experiment was made using the 3D measuring machine ZEISS Prismo 7, fig. 4. By these experiments was measuring the part, fig. 1. I choosed these dimensions, fig. 2.

2 Fig.1 The scaned object THE EXPERIMENT 1 This experiment was realizing using to the mobil measuring arm FARO in in the Department of Design and Mechanical Elements, the Mechanical Engineering, University of Žilina [7]. By using of FARO were measuring the dimensions fig. 2. A - A Fig.2 The measured dimensions

3 table 1. Specified values of dimensions a 86 h 40 b 40 i 23 c 40 j 26,5 d 57 k 97,5±0,2 e 67,5 l 124±0,2 f 39 m 15 H13 g 62 n 30 The mobile measuring arm FARO with laser head, fig. 3 is contact and contactless scanning equipment. This equipment has laser head contactless laser s scanning. The clouds poinds (given 3 coordinates x, y, z) of this scanner are transformation on the special software PolyWorks we have the virtual 3D object [2], [4]. Fig.3 Mobil measuring arm FARO with laser head [4] The specification of this equipment: - effective scanning breadth (64 mm), - measuring frequency (30 pictures/s), - weight (530 g), - dimensions (105 x 44 x 124 mm), - scanning distance (89 mm až 184 mm), - accurancy (0,03 mm contact scanning), - accurancy (0,05 mm contactless scanning), - suitable for scanning complex parts.

4 table 2. Measured values of dimensions by using FARO a 85,969 h 40,135 b 39,724 i 23,034 c 40,133 j 26,701 d 57,024 k 97,388 e 67,144 l 124,191 f 38,972 m 14,952 g 62,006 n 30,245 THE EXPERIMENT 2 The second experiment was realize using the 3D measuring machine ZEISS Prismo 7 [13], fig. 4. The measuring machine ZEISS Prismo 7 is especialy contact measuring machine. The measuring datas with this machine are evaluate by software Umess 1. The datas of the ZEISS Prismo 7 (the portal machine)[10]: - Measuring range [mm] (X x Y x Z): 700 x x 650, - Measuring error - (2,7+L/300)µm. By means of the ZEISS Prismo 7, fig. 4 were measuring the dimensions, fig. 2. Fig.4 Stacionary measuring machine ZEISS Primo 7 [12]

5 The PRISMO series of coordinate measuring machines set the standard in industrial measuring technology worldwide. With its scanning probe and the legendary VAST expert system, PRISMO is the market leader in its class. It has become the standard for scanning CMMs. Its success is evident by the constant performance enhancements and development of the product line to include new fields of application and sensor systems [12]. table 3. Measured values of dimensions by using ZEISS Prismo 7 a 85,920 h 39,960 b 39,690 i 23,080 c 39,990 j 26,680 d 56,950 k 97,320 e 67,100 l 123,960 f 38,950 m 14,950 g 69,920 n 29,980 CONCLUSION On the tab. 2 and tab. 3 are presentation measured values of dimensions (a, b, c,...), which are presentation on the tab. 1. More important dimensions (k, l, m) are made on prescribe tolerations. The mobil measuring arm measured with this accurancy 0,05 mm and 3D measuring machine with this accurancy 0,003 mm. REFERENCES [1] Macuš P., Technológie Reverse Engineeringu, Rigorózna práca, Žilina, [2] Morovič L., Reverse Engineering, Projekt dizertačnej práce, Trnava, [3] [4] [5] Hrivnák R., Proces Reverse Engineering, skenovanie objektov a spracovanie naskenovaných dát, Zborník Automation in production Planning and Manufacturing, May 2006, Žilina Valča Slovakia. [6] [7] [8] [9] [10] ght_ _i-e.pdf [11] 4e [12] [13]