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JJF 1114-2004: Calibration Specification for Optical and Digital Dividing Tables
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JJF 1114-2004	English	559	Add to Cart	3 days [Need to translate]	Calibration Specification for Optical and Digital Dividing Tables

JJF 1114-2004: Calibration Specification for Optical and Digital Dividing Tables

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Calibration Specification for Optical and Digital Dividing Tables National Metrology Technical Specification of the People's Republic Optical, digital indexing table calibration specification Released on.2004-03-02 2004-09-02 implementation The General Administration of Quality Supervision, Inspection and Quarantine issued Optical, digital indexing table calibration specification Optical Tables Replace JJG305-1992 This specification was approved by the General Administration of Quality Supervision, Inspection and Quarantine on March 02,.2004, and Implemented on September 2,.2004. Focal Point. National Geometric Angle Measurement Technical Committee Drafting unit. The 704 Institute of China Aviation Industry First Group Corporation This specification entrusts the focal point to be responsible for interpretation The main drafters of this specification. Chen Zhaoju (The 704 Institute of China Aviation Industry First Group Corporation) Zhang Yuwen (The 704 Institute of China Aviation Industry First Group Corporation)

table of Contents

1 Scope (1) 2 Citations (1) 3 Overview (1) 4 Measurement characteristics (1) 4.1 Flatness of the workbench (1) 4.2 Workpiece rounding of the end face (2) 4.3 Radial runout of the center hole of the indexing table spindle (2) 4.4 Compliance of the optical indexing table reading device (2) 4.5 Digital Display Indexing Digital Drift (2) 4.6 Digital Indexing Table Resolution (2) 4.7 Change in indication value caused by the tightening of the indexing table (2) 4.8 Indexing table indexing error (2) 4.9 Tilting table zero error (3) 4.10 Indexing error of the tilting index of the tiltable table (3) 5 Calibration conditions (3) 5.1 Environmental conditions (3) 5.2 Calibration Standards and Equipment (3) 6 Calibration items and calibration methods (3) 6.1 Workbench flatness (3) 6.2 End face rounding of the workbench (4) 6.3 Radial circular runout of the center hole of the table spindle (4) 6.4 Optical indexing table reading device scribe line compliance (5) 6.5 Digital Display Index Digital Drift (5) 6.6 Digital Indexing Table Resolution (5) 6.7 Change in indication caused by indexing table fastening (5) 6.8 Indexing table indexing error (5) 6.9 Tilting table zero error (6) 6.10 Tilting table tilting index error (6) 7 Expression of calibration results (7) 8 re-study interval (7) Appendix A Worktable Flatness Calculation Example (8) Appendix B Indexing Station Grading Error Measurement Uncertainty Evaluation (9) Appendix C Calibration Certificate Contents (11) Optical, digital indexing table calibration specification

1 Scope

This specification is applicable to optical and digital indexing tables with a minimum division value greater than or equal to 0.5′′ and a measurement range of 0° to 360°. Calibration.

2 Citations

JB/T 4370-1996 Rotary table JJF 1001-1998 General measurement terms and definitions JJF 1059-1999 Evaluation and representation of measurement uncertainty JJG57-1999 optical, digital indexing head JJF 1094-2002 Measuring instrument characteristic evaluation Use of this specification should be done with the current valid version of the above cited documents.

3 Overview

Optical and digital indexing table is a precision angle measurement based on an optical dial or a circular grating or an angle encoder. Instrument for angle and circle indexing. The tilt angle of the tiltable table is 0°~90°. The outline of the optical indexing table is shown in Figure 1. figure 1 1-second handwheel; 2-image screen; 3-locking handle; 4-coarse hand wheel; 5-work table; 6-zero hand wheel

4 Measurement characteristics

4.1 Flatness of the workbench The flatness requirements of the workbench are shown in Table 1. Table 1 mm Workbench diameter ≤500 >500~800 Requirement ≤0.007 ≤0.01 ...