1、MIL-HDBK-682 QC 9999970 0067491 T i- L- - o NOT MEASUREMENT SENSITIVE MIL-HIIBK-B82(AT) 12 Juh 1991 SUPERSEDING (See 6.3) I MILITARY HANDBOOK TOLERANCING, DIMENSIONING, ANI) GAGING TECHNIQUES FOR THE DESIGN OF INSPECTTON EQUIPMENT AREA QCIG Approved for public release; distribution is AMSC N/A un1 i
2、mi ted Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-HDBK-BBZ(AT) FOREWORD 1. This military handbook is approved for use by the U.S. Army -Tank-Automotive Command, Department of %he Army, and is available for use by all Departments and Agencies
3、 of the Department of Defense. 2. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed tQ: U.S. Amy Tank-Automotive Command, ATTN: AMSTA-GDS, Warren, MI 48397-5000, by using the self-addressed Standardiz
4、ation Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. 3. This handbook reiterates the basic policy of DD, which is to place responsibility for design, supply, and maintenance of inspection equipment on the production contractors. inspection equipment
5、available to the Government for verification and inspection purposes. The contractors are required to make their 4. This handbook is published for information and guidance of product assurance, engineering, maintenance, procurement, and contractor personnel. It serves as a textbook for training of p
6、ersonnel responsible for specifying or reviewing methods of inspection and test procedures in product assurance .programs. throughout; the life cycle of an item, i.e. development, production, repair parts, and rebuild. equipment design effort and to prove designs during early phases of an item. This
7、 handbook specifies methods or providing proven design information on a timely basis during mobilization or other emergency when qualified engineers are not available. It provides designs and quality standards that can be applied The intent is to avoid duplication of inspection 5. Inspection require
8、ments for the overall product assurance program encompass the development phase, production engineering phase , and operational maintenance phase of the product life cycle. development phase, preliminary inspection equipment will be designed in the form of sketches and breadboard construction. engin
9、eering phase, inspection equipment requirements will be finalized and will be based on the data originated during the development phase. Inspection equipment designs for operational maintenance will employ these same principles. While this handbook is applicable to all phases, it will be most useful
10、 in the production engineering phase. coverage is in this area. During the During the production The greatest content ii Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-PARAGRAPH l l. 1 1-2 1.3 1.4 2 2.1.1 2.1.2 . 2.1 2.2 2.3 3 3.1 3.2 3.3 3.4 3.4.1
11、3.5 3, (3 . 3-4.2 .4 4. I 4.1.1 4.1.1.1 4.1.1.2 4.1-1.3 4.2 4.3 4.3.1 4.3.2 4.3.3 4.4 4.4.1 4.4.2 4.4.2.1 4.4.2.2 4.5 4.5.1 4-5.2 4-5.2.1 4.5-2-1.1 ._ . IL-HDBK-b2 QC I 9999970 0067493 3 I _ _ MIL-HDBK-682(AT) C O N T,K N T S PAGR 1 1 1 1 2 SCOPE . . 1 scope Purpose . Ob j ect ives . Inspection equi
12、pment terms . APPLICABLE WCUMENTS . Government documents 2. Specifications, standards, and handbooks I I . - . - 2 Other Government documents, drawings, and publications Non-Goverment publications - I - I I - - i I I I . . 3 Order of precedence . .2 3 4 4 4 4 4 4 4 4 5 5 5 5 5 5 6 6 6 6 7 DEFINITION
13、S : . Maximum material condition . Quality assurance provisions (QAPs) i Regardless of feature size . Tolerance *4 Unilateral tolerance Bilateral tolerance . Total indicator reading . Surface texture - . . - - - - . - - . - - . - TOLERANCING AND DIMENSIONING . Application . Base documents . Product
14、drawing . Quality assurance provisions Procurement speciflcation Review of base documents Conflict between complementary documents Implied datum surfaces . Improper application of RFS or MMC Required inspection data 7 . Improper interpretation of geometric tolerances . -. Adequacy of required inspec
15、tion data on drawings Adequacy of required inspection data on envelope type drawings Variables Unacceptable forms of variables . Practical inspection methods Envelope type drawings . Drawings of machined items . Short pilot diameters - functional surfaces . Frequently used control method . 7 7 0 9 9
16、 9 9 9 10 of machined item iii Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-HDBK-682 QC M 9999970 O067494 5 MIL-HDBK-GZ(AT) C O N T .E M T S FARAGRAPH 4.5.2.1.2 4-5.2.1.3 4.5.2.2 4.5.2.2.1 4-5.2.2.2 4.5.2.2.3 4.5.2.2.4 4.5.2.2-5 4.5.2.2.6 4.5
17、.2.2.6.1 4.5-2.2.6.2 4.5.2.2.7 4-5.2.2.8 4.6 5 5.1 5. i. 1 5.1.1.1 5.1.1,l.l 5.1.L.1.2 5.1.2 5-1.3 5.2 5-3 5.3.1 5-3-2 5.3.3 5.3.3.1 5.3.3.2 5.3.3.3 5-3.4 5.3.4.1 5.3.4.1.1 5.3.4.1.2 5.3.4.2 5.3.4.3 6.3.4.4 5.3.4.5 5.3.4.6 5.3.4.6.1 5.3.4.6.2 5.3.4.6.3 Proper form of dimensioning . Other variations
18、. MMC system of dimensioning Fit and strength Fit, strength, and interchangeability Geometric relationships of keyed shaft Geometric relationships of mounting hole patterns Similarities Mounting hole patterns Keyedshaft. Analysis Primary advantage of MMC dimensioning Engineering change proposal (ECP
19、) action Fit L . I -. .I .i I- -. I. .I. !.AGE 10 io li 11 il li li i2 12 12 12 13 13 13 . INSPECTION EQUIPMENT DESIGNS 14 Inspection - - . - . - . . - - - . . - - . - . 14 Extreme limits and tolerance 14 Fundamental design rule . 14 Tolerance limitations 14 Proven acceptability - rejection indicate
20、d . 14 . Establish limits - refinements optional . 15 Maximum and minimum limits . 15 Inspection equipment categories . 15 Gagesdefined. . 15 Datum surfaces . 16 Measuring surfaces 16 RFS gages . - . . - . - . . - - - - . . - . . 16 Applicability to inspection requirements 16 Advantages of RFS gages
21、 . 16 Disadvantages of RFS gages . 17 MMC gages . 17 Basic example (product) . 17 Analysis 18 Basic example (hole location gage) . 18 MMC gage type nomenclature 19 . Advantages of MMC type gages 19 Disadvantages of MMC type gages . 19 Design of hole location gages i9 Simple hole patterns 20 Compound
22、 hole patterns . 20 MMCgageuse 18 Complex hole patterns 20 iv Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-5.4 5.4-1 5.4.2 5.4-2.1 5.4.2.1,l 5.4.2.1.2 5-4.2.1.3 5.4-2.1.4 5-4.2.1.5 5.4.2.1.6 5-4.2.1.7 5.4.2.2 5-4.2.3 5.4-3 5.5 5.6 5.6-1 5.6.2 5.6.
23、3 5.6.4 5.6.4.1 5.6.4.2 5.6.4-3 5.6-4.4 5.7 5.7.1 5-7-2 5.7.3 5-7.4 6 6. i. 6.2 6.3 6-4 6.5 C O N T.E N T S Test equipment . I . . .I . . - - - I . - . I - . . Commercial standard test equipment . - I . . . . . . Test specification control . I . - . . . . I . . I . Test equipment specification drawi
24、ng - . I . . . I . Name of test . . . . - . . - - . I . . . . . . . . . Description of test-. . - - - . . - . - . . . - I . . Purpose of document . - . . . . - I . . . I I . . . . Equipment required . - . I I . . - . I - - .) .) Test procedure I . . . . . I I I - . . I . . I . Acceptance criteria .
25、- . . - - - - - - I . . - . . Arrangement diagram I . - - . . . . . I . . . . . . . Ty-pe A - commercial standard equipment . I . - - I Type B - contractors special equipment . . - . . I Special detailed design . . . . . . I . . - . . . . .) Standard measuring equipment - - - .I . I I I . -. Governm
26、ent inspection equipment . . . . . - I . .) (. - Initiation of Government inspection equipment Utilization of Government inspection equipment designs . , . - . . . . . . . . . . . . . . . . . . designs . - . I. -. . . . . . . I -. . -. . I . General drafting practices . I . I . I . . . . . . . Gener
27、al design practices . .) . . . . . I . . . . I . Minimizing effects of uncontrolled-variables . . . I Low production requirements . . . . - . . I . . . . Adverse effects of equipment sophistication .- . . . . Calibration requirements . . . . . . . - - I - . ; . Contractor inspection equipment . - I
28、. . . . . . I . Utilization of contractor inspection equipment . I . Contractor inspection equipment similarities I I . . Differences relative to Government equipment . I . . Evaluation of contractor equipment designs I . . . .) NOTES . Intendeduse . - - = . . . . . . - . . . . . . . . IssueofDDISS
29、- - . - - - . . . . . - . - .I I . . - Supersession data . . . . . . . . . . . . . . . . . . Subject term (key word) listing I - - . - - - . . I - Responsibility . I . . . . . - . - I . . . . . . . . 20 21 21 21 21 22 22 22 23 23 24 24 24 24 24 25. 25 25 26 26 26 26 27 27 28 28 28 28 29 PfGURES 1 In
30、adequate specification . . . - . - . . . . . . . 31 2 Product drawing with related quality assurance provisions (UPS) - - . . . . . . . I . . . . I . I 32 30 30 30 30 30 . 30 V Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i MIL-HDBK-682 lC 9999970
31、 0067496 9 MIL-HDBK-682CAT) CONTENTS 3 4 5 7 8 9 1.0 11 12 13 14 15 16 17 18 19 20 . 21- 22 23 .24 25 Removable bearing mount - - . . - . - . . - . . Inappropriate dimensioning of removable bearing mount . Proper dimensioning of removable bearing mount Size and positional tolerances of keyed shaft .
32、 Tolerancing of keyed shaft Tolerancing of keyed shaft (liberalized) . Datum surface . Datum and measuring surfaces . RFS type gages - - - . - - - . - - . - . - . . Example of.product drawing requirement Hole location gage . Concentricity specified (conventional) Gages used to inspect RFS condition
33、. . - . :. Concentricity specifled(preferred) . MMC gages . Simple hole pattern with identical diameters . Diameter variation in simple hole pattern . RFS location tolerance in simple hole pattern . Compound hole pattern Complex hole pattern (inspected as compound and simple pattern) . Complexhole p
34、attern (basic example) . Type A arrangement . type B arrangement TABLES I-. 33 I( 34 I 35 - 36 . 37 I 38 . 39 . .40. . ,41 . 42 I 43 .I_ 44 - 45 . 46 . 47 I 48 I * 49 . 50 - 51 . 1. 1.1 52 .I. 53 . 54 1.1 -55 . I Interrelationship of tolerances 17 vi Provided by IHSNot for ResaleNo reproduction or n
35、etworking permitted without license from IHS-,-,-1 MIL-HDBK-682 QC W 9999970 O067497 O _- - 1.1 G-.- Thia handbook defines and amplifies policies and concepts used in technical daa formulation and gaging techniques for the acceptance of tank-automotive materiel. inspection equipment design- The scop
36、e of this handbook is limited to 1.2 Purrme. The purpose of this handbook is to acquaint inspection engineering contractors with above policies and concepts. guidelines to Government personnel for evaluation of inspection equipment designs submitted by the production contractor for approval. problem
37、 areas are high1i.gh.d and guidelines for their solution are established. competent inspection equipment designer who is not necessarily familiar with applicable requirements ad regulations. It also provides Pertinent . It is assumed that the usei? meets the qualifications of a 1.3 Qbiectivtw . “he
38、primary objective is to have all necessary inspection equipment fully qualified at the start of production, available, and compatible with the method and rate of production. While the amount of Government inspection equipnent will be substantially reduced, Government inspection designs, which have b
39、een proven during earlier production and development phases, will be available for subsequent production. These designs will be usable in a number of ways. .construction or as the basis for a design modified to meet particular production requirements, When the production contractor already owns insp
40、ection equipment that the contractor considers suitable, the Government designs will serve as a basisfor comparison to determine the equipments to a far greater extent than was previously possible. will further serve as the basis for the design and/or manufacture of inspection equipment for operatio
41、nal maintenance and rebuild. They may be utilized for direct . adequacy. In this manner, the production contractors equipment will be used The Government designs 1.4 bpection ea- - The terms inspection equipment and design of inspection equipment are used interchangeably with the terms gaging equipm
42、ent and design of gaging equipment in this handbook. 1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-HDBK-b2 QC m 9979770 0067478 2 m 2. APPLICABLE DOCUMENTS 2.1.1 Pmoiicatinn. star publications, and other Government documents required by the c
43、ontractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) 2.2 Non - Government mblications . . of this document to the extent specified herein. The following document(8) form a part Unless otherwise speci
44、fied, the issues of thedocuments which are DOD adopted are those listed in the issue of the DODISS cited in the solicitation (see 6.2). AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI ANSI Y14.5 ANSI/ASME B46.1 - Surface Texture. - Dimensioning and Tolerancing. (Application for copies should be-addresse
45、d to ASME, 345 East 47th 10017, or from ANSI, 1430 Broadway, New York, NY Street, New York, Ny 10018- 1 from the organizatians that prepare or distribute the documents. documents also may be available in or through libraries or other informational services.) (Non-Government standards and other publi
46、cations are normally available These 2.3 In the event of a conflict between the text of this document and the references cited herein, the text of this handbook takes precedence. laws and regulations unless a specific exemptionhas been obtained. Nothing in this document, however, superedes applicabl
47、e - 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-HDBK-682 QC 9999970 0067500 7 - 3. DEFINITIONS - The condition in which a feature 3.1 (m o size contains the maximum amount of material within the stated limits of size - for example, minimum
48、hole diameter, maximum shaft diameter. establish uniorm inspection and test procedures for items procured by the Government for issue to the user. . QAPs are documents which *I 3.2 mitv amUrnnpOV1s10ns (ups 1 3.3 RnFtnrdlew nf feature six:F! (RFU - The term used to indicate that a geometric toleranc
49、e or datum reference applies at any increment of size of the feature within its size tolerance. 3.4 W-,. The.tota1 amount by which a specific dimension is . permitted to vary. minimum limits. The tolerance is the difference between the maximwn and 3.4. I Uteral toler- . A tolerance in which variation is permitted in one direction from the speci
