GB/T 21686-2008 English PDF

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GB/T 21686-2008: Woodworking machines -- Slot mortising machines -- Nomenclature and acceptance conditions
Status: Valid

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GB/T 21686-2008	154	Add to Cart	3 days	Woodworking machines -- Slot mortising machines -- Nomenclature and acceptance conditions	Valid

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Basic data

Standard ID: GB/T 21686-2008 (GB/T21686-2008)
Description (Translated English): Woodworking machines -- Slot mortising machines -- Nomenclature and acceptance conditions
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J65
Classification of International Standard: 79.120.10
Word Count Estimation: 8,822
Date of Issue: 2008-04-22
Date of Implementation: 2008-10-01
Quoted Standard: GB/T 17421.1-1998
Adopted Standard: ISO 7946-1985, IDT
Regulation (derived from): National Standard Approval Announcement 2008 No.6 (Total No.119)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the terms of horizontal tongue and groove machine each part. While referring to GB/T 17421. 1-1998, provides for inspection of geometric precision machine tools, and given the appropriate tolerances for general purposes, ordinary precision machine tools. This standard only requires that the machine accuracy test, the test does not apply to the operation of the machine. Does not apply to the characteristics of the machine test, these tests are generally advised to test for accuracy in front of the machine. This standard for precision machine work without mandatory testing. It should be between the user and the manufacturer prior agreements separately.

GB/T 21686-2008: Woodworking machines -- Slot mortising machines -- Nomenclature and acceptance conditions

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Woodworking machines. Slot mortising machines. Nomenclature and acceptance conditions ICS 79.120.10 J65 National Standards of People's Republic of China GB/T 21686-2008/ISO 7946. 1985 Woodworking machines horizontal tongue and groove Terminology and accuracy (ISO 7946. 1985, IDT) Posted 2008-04-22 2008-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is identical with ISO 7946. 1985 "Woodworking machines tongue and groove Nomenclature and acceptance conditions" (in English). For ease of use, this standard made the following editorial changes. --- Standard name changed to "horizontal tenon slot machine"; --- "This International Standard" be replaced by "this standard"; "." --- With a decimal point instead of a comma as the decimal point, ""; --- Remove the French term and Appendix A; --- Deleted international standards foreword; --- Increasing the normative references of Lead; --- International standard ISO 7946 referenced with have been adopted in place for our standards. The standard proposed by China Machinery Industry Federation. This standard is under the jurisdiction of the National Woodworking Machine and Tool Standardization Technical Committee. This standard drafting unit. Woodworking Machine Tool Research Institute, Fuzhou, Fujian Province Minhou County Cheung Woodworking Machinery. The main drafters of this standard. Zheng Li, Xiao Xiaohui, Lin Wenxin. GB/T 21686-2008/ISO 7946. 1985 Woodworking machines horizontal tongue and groove Terminology and accuracy

1 Scope

This standard specifies the terms horizontal tenon slot machine (hereinafter referred to as the machine) of each part, while referring to GB/T 17421.1-1998, provides Geometric accuracy of machines tested and given the appropriate tolerances for general use, general precision machine tools. This standard only requires that the machine accuracy test, does not apply to running test machine (such as vibration, unusual noise, reptiles and other parts of the seized Experience), does not apply to machine features test (such as speed, feed rate, etc.), these tests are generally advised to test for accuracy in front of the machine. This standard is the work of precision machine tool inspection will not be mandatory. It should be between the user and the manufacturer prior agreement separately.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 17421.1-1998 Test code for machine tools - Part 1. under no-load or finishing conditions Geometric accuracy of machines (Eqv ISO 230-1.1996)

3 Short Description

3.1 standard in all dimensions and tolerances are in millimeters. 3.2 This standard should be used with reference to GB/T 17421.1-1998, especially the test installation, spindles and other moving parts of the machine before Temperature, and test methods. Gage error should not exceed 1/3 of the tolerance of the subject project. 3.3 standard geometric accuracy test order is given by the machine tool assembly sequence, which is not limited by the order of the actual inspection time. In order to facilitate Installation and testing of the seizure, inspection in any order. The standard test given project may not always be necessary or itemized inspection 3.4 inspection tools. 3.5 Test Project selection is determined by the user, and in agreement with the manufacturer, clearly defined at the time of ordering the machine. Selected test Projects are often of interest about the performance of your machine. 3.6 movement in the direction of the workpiece called longitudinal movement. 3.7 When determining the measurement range is different tolerances specified in this standard measurement range on tolerance should be considered a minimum conversion value of 0.01mm (See GB/T 17421.1-1998 of 2.3.1.1).

4 Terms

Tools - Terminology Figure 1 and Table 1. GB/T 21686-2008/ISO 7946. 1985 ......

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