DIN 103-9-1985 ISO metric trapezoidal screw threads gauging of external and internal threads gauge dimensions and design features《ISO 米制梯形螺纹 外螺纹与内螺纹用量规 量规尺寸和结构特征》.pdf
《DIN 103-9-1985 ISO metric trapezoidal screw threads gauging of external and internal threads gauge dimensions and design features《ISO 米制梯形螺纹 外螺纹与内螺纹用量规 量规尺寸和结构特征》.pdf》由会员分享,可在线阅读,更多相关《DIN 103-9-1985 ISO metric trapezoidal screw threads gauging of external and internal threads gauge dimensions and design features《ISO 米制梯形螺纹 外螺纹与内螺纹用量规 量规尺寸和结构特征》.pdf(12页珍藏版)》请在麦多课文档分享上搜索。
1、UDC 621.882.082.4 : 621.753.3 DEUTSCHE NORM February 1985 103 I Part 9 IS0 metric trapezoidal screw threads Gauging of external and internal threads Gauge dimensions and design features - DIN Metrisches ISO-Trapezgewinde; Lehren fr Bolzen- und Muttergewinde, Lehrenmae und Baumerkmale Supersedes Augu
2、st 1973 edition. In keeping with current practice in standards published by the International Organization for Standardization (ISO), a comma has been used throughout as the decimal marker. This standard gives specifications necessary for manufacturing gauges for IS0 metric trapezoidal screw threads
3、. General specifications relating to the gauging system, nomenclature, gauging of workpieces and handling of gauges have not been separately standardized for gauges for trapezoidal screw threads; for these, DIN 13 Part 16 and Part 18 shall be applied as appropriate. This standard specifies only the
4、required gauge dimensions and design features. The manufacturing tolerances have been increased in comparison with those specified in DIN 13 Part 17 by about 45% in order to compensate for the effect of the steeper flanks of the IS0 metric trapezoidal thread. Contents Page 1 .I Profiles with covplet
5、e flanks . 2 1.2 Profiles with truncated flanks . 3 2 Tolerance zones . 4 2.1 Tolerance zones for pitch diameter . 4 2.2 Tolerance zones for plain gauges . 5 3 Calculation of gauge dimensions 6 3.1 Gauges for workpiece external threads . 6 3.2 Gauges for the major diameter 9 3.3 Gauges for workpiece
6、 internal threads . 9 3.4 Gauges for the minor diameter 9 1 Thread profiles . 2 Page 4 Tolerances and permissible wear 1 O 5 General design features of screw gauges . I 1 5.1 Gauges for workpiece external threads . 1 1 5.1 .I Solid Go screw ring gauge 1 1 5.1.2 Go screw calliper gauge . 11 5.1.3 Set
7、ting plug for Go screw calliper gauge . 11 5.1.4 Not Go screw calliper gauge 11 5.1.5 Solid Not Go screw ring gauge . 11 5.2 Gauges for workpiece internal threads . 11 5.2.1 Go screw plug gauge . 11 5.2.2 Not Go screw plug gauge 11 5.3 Start of thread 12 Continued on pages 2 to 12 Beuth Verlag GmbH,
8、 Berlin 30 has exclusive sale rights for German Standards (DIN-Normen) DIN 103 Part 9 Engl. Price group 10 Sales No. O110 01.86 Page 2 DIN 103 Part 9 Pitch P 14 16 18 20 22 24 28 32 36 40 44 1 Thread profiles 1 .I Profiles with complete flanks The following gauges shall have a profile as shown in fi
9、gure 1 : Go check plug for new solid Go screw ring gauge; Go check plug for new solid Not Go screw ring gauge; Go screw plug gauge; setting plug for Go screw calliper gauge; Not Go check plug for new solid Not Go screw ring gauge; setting plug for Not Go screw calliper gauge; wear check plug for sol
10、id or adjustable Not Go screw ring gauge. R2 rnax. 1 1 1 1 1 1 1 1 1 1 1 P+ or -Tp Figure 1. Profile with complete flanks The following gauges shall have a profile as shown in figure 2: solid Go screw ring gauge; anvils of Go screw calliper gauge. 8 c al .- U .- 2 - These diameters do not exist on a
11、nvils of GO screw calliper gauges. Table 1. Values of R2 fnax Pitch rnax. ; 1 ! 0,5 1) P = pitch of single star The form of the root is at the manufacturers discretion. The maximum size of the minor diameter and R2 IIIIuL shall not be exceeded. Figure 2. Profile with complete flanks 1.2 Profiles wit
12、h truncated flanks The following gauges shall have a profile as shown in figure 3: Not Go check plug for new solid Go screw ring gauge; wear check plug for solid Go screw ring gauge; Not Go screw plug gauge. f- 0.1 t 0.1 f 0,l i 0,l f- 0,l i 0.15 f- 0.15 f- 0.15 t 0.15 f- 0,15 t 0.15 f- 0.15 I0.2 f-
13、 0.2 i 0,2 t 0.2 P+ or -Tp o, 1 O, 1 0,1 0,15 0.15 0,15 02 02 Figure 3. Profile with truncated flanks 16 18 20 22 28 32 36 40 44 24 The following gauges shall have a profile as shown in figure 4: solid Not Go screw ring gauge; anvils of Not Go screw calliper gauge. 1,6 1.8 2 22 2,8 32 3,6 4 4,4 2.4
14、- These diameters do not exist on anvils of Not Go screw calliper gauges. Figure 4. Profile with truncated flanks Gauges with truncated flanks have a clearance groove b, the form of which is left to the discretion of the manu- facturer. For the symmetry tolerance s of the clearance groove, see table
15、 2. DIN 103 Part 9 Page 3 Table 2. Values of b and FI for profiles with truncated flanks (in mm, see f.igures 3 and 4) Nominal size 0,6 0.85 1.25 3,1 3,6 4,05 1 14 4.5 5,4 6,35 7,25 8 2 9,15 10.1 1 1 ,O5 12,9 14,9 16.85 18,7 20,6 - I Limit f 0.1 r 0.1 t 0,l 1) P = pitch of single start trapezoidal t
16、hread. The limit deviations for b may be exceeded if the real displacement is less than the symmetry tolerances, by twice the amount of the difference between the symme- try tolerances and the real displacement. Figure 5. Symmetry tolerances of the clearance groove b Page 4 DIN 103 Part 9 Symbol TD,
17、 Td2 TR TCP 2 Tolerance zones 2.1 Tolerance zones for pitch diameter (see figures 6 and 7) Quantity Tolerance on the pitch diameter of the workpiece thread Tolerance on the pitch diameter of the Go screw ring gauge and the Not Go screw ring gauge Tolerance on the pitch diameter of (Go and Not Go) ch
18、eck plugs, wear check plugs and setting plugs TPL WGO WNG Tolerance on the pitch diameter of Go and Not Go screw plug gauges Average amount available for permissible wear on the Go screw plug gauge and Go screw ring gauge Average amount available for permissible wear on the Not Go screw plug gauge a
19、nd the Not Go screw ring gauge Distance of the centre of the tolerance zone of tolerance TR of the Go screw ring gauge from the upper limit of the workpiece ZR Distance between the centres of the tolerance zones of tolerance TR of the screw ring gauge and Tcp of the Go check plug Distance of the cen
20、tre of the tolerance zone of tolerance TL of the Go screw plug gauge from the lower limit of the workpiece thread m ZPL Wear check plug for solid Wear limit for solid GO screw ring gauge , Go screw ring gauge I I (Upper limit of workpiece) i - Solid Go screw ring gauge / Go check plug for new solid
21、Go screw ring gauge Setting plug for Go screw calliper gauge e“ Wear check plug for solid, Not Go screw ring gauge , Wear limit for solid Not Go screw ring gauge I Not Go Not Go Not Go (Lower limit of workpiece) Solid Not Go screw ring gauge , / / Go check plug for new solid Not Go screw ring gauge
22、Setting plug for Not Go screw calliper gauge 1 Figure 6. Tolerance zones for the pitch diameter of gauges for checking external threads DIN 103 Part 9 Page 5 Hl H2 The pitch diameter of screw ring gauges can be measured directly where it cannot be better checked with check plugs. In order to ensure
23、that a screw ring gauge that has been found to be correct by direct measurement will also be found correct when checked with a Go check plug, it is necessary to shift the pitch diameter tolerance zone of the Go check plug downwards by an amount m, in relation to the pitch diameter tolerance zone of
24、the screw ring gauge (see figure 61. The values specified in table 7 for m represent the sum of the diametral equivalents of the average errors that are likely to occur in the pitch and the flank angles of the check plug and of the screw ring gauge, in relation to the specified tolerances on these t
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