Enhancement of geometric accuracy of five-axis machining centers based on identification and compensation of geometric deviations

Tsutsumi, Masaomi; Tone, Shintaro; Kato, Noriyuki; Sato, Ryuta

doi:10.1016/j.ijmachtools.2012.12.008

Cited by 98 publications

(31 citation statements)

References 17 publications

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“…Now the PIGEs have been detected, so they can be considered to be constants. (9) Since there are only six PDGEs in each axis, six equations are enough to solve the answer. After integration the Eq.…”

Section: Measurement Of Geometric Errors Of Translation Axesmentioning

confidence: 99%

“…Lee designed a series of measurement paths to increase the sensitivity of the geometric errors, and make a clear expiation that the position-dependent and position-independent errors could be modeled as nth-order polynomials and constants [8]. Tsutsumi et al analyzed the measurement using a cylindrical coordinate system and Cartesian coordinate system respectively, and pointed out the advantages and disadvantages of the two methods [9]. In 2013, Lee et al studied the position-independent geometric errors including the offset errors and squareness errors of rotary axes of a five -axis machine tool with double ball bar [10].…”

Section: Introductionmentioning

confidence: 99%

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A New Decoupling Measurement Method of Five-axis Machine Tools’ Geometric Errors Based on Cross Grid Encoder and DBB

Wang¹,

Li²

2017

dtetr

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Abstract.In order to obtain all the geometric errors of five-axis CNC machine tool, a measuring strategy with cross grid encoder and double ball-bar (DBB) is proposed. According to the theory of multi-body systems, by using the homogeneous coordinate transformation method the model of geometric errors is established. The cross grid encoder is used to detect the translation geometric errors and the DBB is used to measure the rotation ones. Based on the kinematic chain and the properties of geometric errors, the translation geometric errors are measured before the rotation ones. For each axis, both PIGEs (position-independent errors) and PDGEs (position-dependent errors) are under consideration. Then a complete compensated model can be established.

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Section: Measurement Of Geometric Errors Of Translation Axesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A New Decoupling Measurement Method of Five-axis Machine Tools’ Geometric Errors Based on Cross Grid Encoder and DBB

Wang¹,

Li²

2017

dtetr

View full text Add to dashboard Cite

show abstract

“…For instances, some of researchers have applied telescoping double ball bar (DBB) for identification of location errors [2][3][4][5][6][7][8]. K.I.…”

Section: Literature Surveymentioning

confidence: 99%

Identification of location errors by a touch-trigger probe on five-axis machine tools with a tilting head

Jiang

Song

Zhou

et al. 2015

Int J Adv Manuf Technol

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Location errors are considered as one class of the fundamental errors of five-axis machine tools. For the improvement of machining accuracy, it is important to propose an efficient and accurate identification method of location errors. This paper uses a touch-trigger probe and a testpiece to identify location errors of a five-axis machine tool with a tilting head. All the measuring procedures are performed based on the single setup of measuring equipment. A model-based decoupling algorithm of squareness errors of linear and rotary axes is proposed. Then, a new probing procedure is proposed based on this algorithm to increase the moving distances of linear axes without additionally auxiliary equipment. This basic idea can also be expanded to other machine configurations, for instances, the one with a tilting-rotary table which is also illustrated. The experimental results demonstrate that this method is efficient and accurate.

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“…8 Test setups proposed by Zaigarbashi [18] Path of spindle side ball Path of table side ball Fig. 9 Test setups proposed by Tsutsumi [24] 5.2 Comparison 2…”

Section: Comparisonmentioning

confidence: 99%

Using a double ball bar to measure 10 position-dependent geometric errors for rotary axes on five-axis machine tools

Xiang

Yang

2014

Int J Adv Manuf Technol

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To improve the accuracy of five-axis machine tools, the measurement and compensation of position-dependent geometric errors (PDGEs) for rotary axes are of great importance. A double ball bar-based measuring method is proposed to precisely calibrate PDGEs. For each rotary axis, five measuring patterns are designed, in which the ball bar is sensitive to one direction throughout the measuring process. In the measurement, the ball bar functions as a high-precision displacement sensor with a single degree of freedom. Based on the ball bar readings, analytical solutions for 10 PDGEs, except for two angular position errors, are simply deduced. Simulations are conducted to analyze the influence of PDGEs and setup errors on measuring patterns. The advantages of the proposed method are discussed by comparison with three other measuring schemes. Finally, experimental verification of this approach is conducted on a five-axis machine tool. The results confirm that the method provides precision results of PDGEs for rotary axes.

show abstract

Enhancement of geometric accuracy of five-axis machining centers based on identification and compensation of geometric deviations

Cited by 98 publications

References 17 publications

A New Decoupling Measurement Method of Five-axis Machine Tools’ Geometric Errors Based on Cross Grid Encoder and DBB

A New Decoupling Measurement Method of Five-axis Machine Tools’ Geometric Errors Based on Cross Grid Encoder and DBB

Identification of location errors by a touch-trigger probe on five-axis machine tools with a tilting head

Using a double ball bar to measure 10 position-dependent geometric errors for rotary axes on five-axis machine tools

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