Some standard content:
QB/T2405-1998
This standard combines the two national standards GB4039-1983 Watch Gemstone Components and GB9818--1988 Watch Gemstone Components Inspection Methods and adjusts them into industry standards. This revision adjusts the relevant technical elements and organizes and standardizes the writing format of the standard text in accordance with GB/T1.1-1993 Standardization Work Guide Unit 1: Drafting and Expression Rules of Standards Part 1: Basic Provisions for Standard Writing. This standard mainly has the following changes:
The content of technical requirements and test methods has been rearranged and adjusted; the variety of slotless arc hole drill (WH) has been added; the accuracy of each specification product is set to: 0, 1, 2; the relevant content of type inspection has been added;
-The content of marking related to packaging boxes has been added. This standard was proposed by the Industry Management Department of the State Bureau of Light Industry. This standard is under the jurisdiction of the National Watch Standardization Center. The drafting unit of this standard: Shanghai Guanleming Co., Ltd. The main drafters of this standard are Zhou Qianshou, Xu Nianshou, Zhong Huimin and Lin Wenyu. From the date of implementation of this standard, the former national standards GB4039-1983 "Watch Gem Components" and GB9818-1988 "Test Methods for Watch Gem Components" will be abolished.
1 Scope
Light Industry Industry Standard of the People's Republic of China
Watch Gem Components
QB/T2405-1998
This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, and packaging of watch gem components (hereinafter referred to as gem components").
This standard applies to gem components for watches and stopwatches, and can also be used for gem components for instruments and other purposes. 2 Cited standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision and use of this standard All parties should explore the possibility of using the latest versions of the following standards. GB/T2828-1987 Counting sampling procedures and sampling tables for batch inspection (applicable to inspection of continuous batches) GB/T2829-1987 Counting sampling procedures and sampling tables for periodic inspection (applicable to inspection of production process stability) GB/T1031-1995 Surface roughness parameters and their values GB/T4051-1997 Red artificial corundum
3 Product classification
3.1 Type
The types, varieties and codes of gemstone components are shown in Table 1. Table 1
Approved by the State Bureau of Light Industry on November 25, 1998
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Plane straight hole drill
Plane arc hole drill
Spherical arc hole drill
1999-06-01 implementation
Note: Gemstone components are generally called "drills".
QB/T 2405—1998
Table 1 (complete)
Slotless straight hole drill
(single guide calibration)
Slotless straight hole drill
Slotless arc hole drill
Spherical support drill
Spherical support drill
(for shock absorbers)
Plane support drill
Wedge inlet drill
Wedge outlet drill
Disc nail drill
3.2 Names of various parts
QB/T 2405-1998
3.2.1 The names and symbols of various parts of plane straight hole drill (PZ) are shown in Figure 1. D
D—outer diameter; d hole diameter tH—thickness; D,—oil groove diameter; h—hole height; h—installation back correction height iα—installation back correction angle; r2—oil groove upper opening back press radius: r3—outer back correction radius tr. hole back correction radius +rs-oil pick lower opening back connection radius: B—working surface; B, non-working surface; A—effective part of the working surface (from the hole wall to the plane within 1/2 of the outer circle) G inner hole surface: N—oil groove surface, E-cylinder surface: h2—cylinder thickness Figure 1 PZ type
3.2.2 The names and symbols of various parts of plane arc hole drill (PH) are shown in Figure 2. D
D-outer diameter+d-hole diameter, H-thicknessDi-oil grid diameter, -hole heighth-height of manhole; α-angle of manhole installationtr-curvature radius of arc hole: rz-oil groove upper inverted floor radius: r-outer chamfer radius; B-working surface, Bi-non-working surface: A-effective part of working surface (plane from hole wall to within 1/2 of outer circle); C-effective part of arc hole surface (inner hole surface of 1/2 of hole height in the middle of hole)N-oil groove surface: E-cylinder surfaceh2-cylinder thicknessFigure 2PH type
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QB/T2405-1998
3.2.3 The names and symbols of various parts of spherical arc hole drill (QH) are shown in Figure 3. D—outer diameter: d—hole diameter: H—thickness, D—oil carrying diameter: h—hole height: R—spherical surface curvature radius 1r—arc hole curvature radius r2—oil groove upper opening back correction radius 1r. —-spherical surface chamfer radius 1r plane back radius: Q—spherical surface, B1—non-working surface; C—effective part of the hole surface (inner hole surface of 1/2 of the hole height in the middle of the hole); N—oil extraction surface; E—cylinder surface thz—cylinder thickness Figure 3 QH type
3.2.4 Slotless straight hole drill [WZ (D), (WZ)) The names and symbols of the various parts of the slotless arc hole drill (WH) are shown in Figure 4. wz (D) type
D--outer diameter td--hole diameter tH--thickness; ht--installation back-correction height ra--installation back-correction angle rs--outer back-correction radius: r--hole mouth back-correction radius, r--hole mouth chamfer radius of non-working surface; B--working surface; B--non-working surface; A--effective part of the working surface (from the hole wall to the surface within 1/2 of the outer circle); G-inner hole surface: E--cylinder surface + r,--solitary hole curvature radius hz--cylinder thickness Figure 4
QB/T2405-1998
Figure 4 (End)
3.2.5 The names and symbols of the various parts of the spherical support drill [QT(F), QT) are shown in Figure 5. D
QT(F) type
D is the outer diameter, D1 is the diameter of the working part, H is the thickness; h2 is the thickness of the cylinder; ha is the height of the working part; R is the radius of curvature of the spherical surface: rs is the radius of the spherical chamfer + r is the radius of the plane chamfer B is the working surface + A is the effective part of the working surface (the plane within 2/3); Q is the spherical surface; E is the cylindrical surface Figure 5
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\QB/T 2405-1998
3.2.6 The names and symbols of the various parts of the plane support drill (PT) are shown in Figure 6. D
- plane chamfer radius; B working surface; E- cylinder surface + hz- cylinder thickness D- outer diameter; H- centimeters r
Figure 6 PT type
3.2.7 The names and symbols of the various parts of the inlet and outlet drill (JW, CW) are shown in Figure 7p
b- width; H- thickness: L length ra- tile inclination angle: β- entry angle = r- front correction radius / ro- rear edge radius: rn wax correction radius; W- effective part of the locking surface (i.e. 0. 15 mm from the front edge) Feeding surface within); V-punch surface; j-introduction surface length, M-side surface; F-base surface; T-introduction surface P-end surface Figure 7
QB/T2405-1998
Figure 7 (end)
3.2.8 The names and symbols of the various parts of the disc nail drill (YD) are shown in Figure 8. 1
D-outer diameter; H-thickness, L-lengthtri2-increase surface chamfer radiusr-measurement surface chamfer radiusP-end surface, E-effective part of the arch surface (i.e. the arch surface within 1/2 thickness starting from the chord plane), S-chord plane Figure 8YD type
4 Technical requirements
4.1 Names, accuracy and surface roughness of geometric parameters4.1.1 Plane straight hole drill (PZ) See Table 2.
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Outer diameter, mm
Aperture, mm
Thickness.mm
Thickness of cylinder, mm
Diameter of oil groove, mm
Hole distance, mm
Height for installation and calibration, mm
Angle of installation and calibration, (\)）
Radius of chamfer of upper mouth of oil groove, mm
Radius of chamfer of outer floor, mm
Radius of chamfer of hole mouth, mm
Radius of chamfer of lower mouth of oil groove, mm
Effective part of working surface
Surface of inner hole
Surface of cylinder
Non-working surface
Surface of oil groove
Other surfaces
See Table 3 for plane arc hole drilling (PH).
Outer diameter, mm
Aperture, mm
Thickness, mm
Cylinder thickness, mm
Oil pick diameter, mm
Hole quotient, mm
Installation height. mm
Installation chamfer angle, (\)
Arc hole curvature radius, mm
Oil pick upper chamfer radius, mm
Outer shuttle radius, mm
QB/T 2405—1998
≥1/3H
(0.500.70)D±0.07, roundness≤0.05(0.50~ 0.70)H±0. 03
(1/3~1/5)H±0.02, unevenness is 1/2 of the height limit deviation 25~45
0. 01 ~ 0. 03, 0. 02~ 0. 06
0. 005~0. 02, 0. 015~ 0. 04
R6.3~R.1.6
≥1/3H
(0.50~0.70)D±0.07, roundness 0.05(0.50~0.70)H±0,03
(1/3～1/5)H±0.02, unevenness is 1/2 of the height limit deviation 25~45
(1~3.5) a
0.010.03,0.02~~0.06
Effective part of working surface
Effective part of arc hole surface
Cylinder surface
Non-working surface
Oil groove surface
Other surfaces
Spherical arc hole drill (QH) see Table 4.
Outer diameter, mm
Aperture+mm
Thickness.mm
Cylinder thickness, mm
Oil groove diameter, mm
Hole height.mm
Spherical curvature radius, mm
Arc hole curvature radius, mm
Oil quality. Upper mouth inverted connection radius, mm
Spherical inverted shuttle radius, mm
Plane inverted shuttle radius, mm
Effective part of arc hole surface
Cylinder surface
Oil groove surface
Other surfaces
QB/T2405-1998
Table 3 (end)
d≥0. 17
R6.3~R1.6
≥1/4H
(0.50~0.70)D±0.07.Roundness≤0.050.50~0.70)H0.04
0.01~0.03,0.01~0.05
0.02~0.05
R,6. 3-~R1. 6
Slotless straight hole drill CWZ (D), WZ).Slotless arc hole drill (WH) see Table 5. Table 5
Outer diameter, mm
Aperture, mm
>0. 50~1. 00
TTiKAoNiKAca-
Thickness.mm
Installation chamfer height, mm
Cylinder thickness.mm
Installation chamfer angle, (\)
Hole curvature radius, mm
Outer chamfer radius, mm
Hole mouth chamfer radius
Non-working surfaceHole mouth chamfer radius, mm
Working surface effective part
Inner hole surface
Cylinder surface
Non-working surface
d>0. 50~1. 00
Other surfaces
QB/T 2405—1998
Table 5 (Complete)
(1/3～1/5)H±0.02, unevenness is 1/2≥1/3H of the height limit deviation
(1~3. 5) d
0. 02 ~ 0. 06
0. 015~0. 04
0. 02 ~ 0. 06
0. 04 ~ 0. 10
*When d is the non-working surface, the tolerance is d+:025, and the inner hole surface roughness is R3. 24.1.5
Spherical support hole [QT(F), QT) see Table 6.
Outer diameter, mm
Thickness.mm
Diameter of working part, mm
Thickness of cylinder.mm
Height of working part.mm
Radius of curvature of spherical surface
Radius of spherical surface chamfering, mm
Radius of plane chamfering, mm
Effective part of working surface
Surface of cylinder
Other surfaces
See Table 7 for plane support drill (PT).
R.6.3~R.1.6
≥1/4H
Should be a smooth spherical surface
0. 02 ~~0. 08
0. 01 ~~ 0. 05
R.6.3~R.1.6
Outer diameter, mm
Thickness mml
Thickness of cylinder, mm
Radius of chamfered edge, mm
Working surface
Cylinder surface
Roughness
QB/T2405—1998
See Table 8 for the entry drill (JW) and exit drill (CW). Table 8
Width, mm
Thickness, mm
Length.mm
Tile inclination angle
Lead-up angle, (\)
Lead-up surface length, mm
Front edge radius, mm
Rear edge radius, mm
End edge radius, mm
Effective part of locking surface
Lead-up surface
Disc nail drill (YD) See Table 9.
Outer diameter, mm
Thickness.mm
Length, mm
End chamfer radius.mm
Side chamfer radius, mm
Effective part of arched surface
Chord plane
Other surfaces
≥1/3H
0. 01~0. 05
R.6.3~R.1.6
(<32°)±30°
0. 10～0. 25
0mm
Radius of curvature of spherical surface, mm
Radius of curvature of arc hole, mm
Oil quality. Upper inverted connection radius, mm
Radius of spherical inverted shuttle, mm
Radius of plane inverted shuttle, mm
Effective part of arc hole surface
Cylinder surface
Oil groove surface
Other surfaces
QB/T2405-1998
Table 3 (Complete)
d≥0. 17
R6.3~R1.6
≥1/4H
(0.50~0.70)D±0.07.Roundness≤0.050.50~0.70)H0.04
0.01~0.03,0.01~0.05
0.02~0.05
R,6. 3-~R1. 6
Slotless straight hole drill CWZ (D), WZ).Slotless arc hole drill (WH) see Table 5. Table 5
Outer diameter, mm
Aperture, mm
>0. 50~1. 00
TTiKAoNiKAca-
Thickness.mm
Installation chamfer height, mm
Cylinder thickness.mm
Installation chamfer angle, (\)
Hole curvature radius, mm
Outer chamfer radius, mm
Hole mouth chamfer radius
Non-working surfaceHole mouth chamfer radius, mm
Working surface effective part
Inner hole surface
Cylinder surface
Non-working surface
d>0. 50~1. 00
Other surfaces
QB/T 2405—1998
Table 5 (Complete)
(1/3～1/5)H±0.02, unevenness is 1/2≥1/3H of the height limit deviation
(1~3. 5) d
0. 02 ~ 0. 06
0. 015~0. 04
0. 02 ~ 0. 06
0. 04 ~ 0. 10
*When d is the non-working surface, the tolerance is d+:025, and the inner hole surface roughness is R3. 24.1.5
Spherical support hole [QT(F), QT) see Table 6.
Outer diameter, mm
Thickness.mm
Diameter of working part, mm
Thickness of cylinder.mm
Height of working part.mm
Radius of curvature of spherical surface
Radius of spherical surface chamfering, mm
Radius of plane chamfering, mm
Effective part of working surface
Surface of cylinder
Other surfaces
See Table 7 for plane support drill (PT).
R.6.3~R.1.6
≥1/4H
Should be a smooth spherical surface
0. 02 ~~0. 08
0. 01 ~~ 0. 05
R.6.3~R.1.6
Outer diameter, mm
Thickness mml
Thickness of cylinder, mm
Radius of chamfered edge, mm
Working surface
Cylinder surface
Roughness
QB/T2405—1998
See Table 8 for the entry drill (JW) and exit drill (CW). Table 8
Width, mm
Thickness, mm
Length.mm
Tile inclination angle
Lead-up angle, (\)
Lead-up surface length, mm
Front edge radius, mm
Rear edge radius, mm
End edge radius, mm
Effective part of locking surface
Lead-up surface
Disc nail drill (YD) See Table 9.
Outer diameter, mm
Thickness.mm
Length, mm
End chamfer radius.mm
Side chamfer radius, mm
Effective part of arched surface
Chord plane
Other surfaces
≥1/3H
0. 01~0. 05
R.6.3~R.1.6
(<32°)±30°
0. 10～0. 25
0mm
Radius of curvature of spherical surface, mm
Radius of curvature of arc hole, mm
Oil quality. Upper inverted connection radius, mm
Radius of spherical inverted shuttle, mm
Radius of plane inverted shuttle, mm
Effective part of arc hole surface
Cylinder surface
Oil groove surface
Other surfaces
QB/T2405-1998
Table 3 (Complete)
d≥0. 17
R6.3~R1.6
≥1/4H
(0.50~0.70)D±0.07.Roundness≤0.050.50~0.70)H0.04
0.01~0.03,0.01~0.05
0.02~0.05
R,6. 3-~R1. 6
Slotless straight hole drill CWZ (D), WZ).Slotless arc hole drill (WH) see Table 5. Table 5bZxz.net
Outer diameter, mm
Aperture, mm
>0. 50~1. 00
TTiKAoNiKAca-
Thickness.mm
Installation chamfer height, mm
Cylinder thickness.mm
Installation chamfer angle, (\)
Hole curvature radius, mm
Outer chamfer radius, mm
Hole mouth chamfer radius
Non-working surfaceHole mouth chamfer radius, mm
Working surface effective part
Inner hole surface
Cylinder surface
Non-working surface
d>0. 50~1. 00
Other surfaces
QB/T 2405—1998
Table 5 (Complete)
(1/3～1/5)H±0.02, unevenness is 1/2≥1/3H of the height limit deviation
(1~3. 5) d
0. 02 ~ 0. 06
0. 015~0. 04
0. 02 ~ 0. 06
0. 04 ~ 0. 10
*When d is the non-working surface, the tolerance is d+:025, and the inner hole surface roughness is R3. 24.1.5
Spherical support hole [QT(F), QT) see Table 6.
Outer diameter, mm
Thickness.mm
Diameter of working part, mm
Thickness of cylinder.mm
Height of working part.mm
Radius of curvature of spherical surface
Radius of spherical surface chamfering, mm
Radius of plane chamfering, mm
Effective part of working surface
Surface of cylinder
Other surfaces
See Table 7 for plane support drill (PT).
R.6.3~R.1.6
≥1/4H
Should be a smooth spherical surface
0. 02 ~~0. 08
0. 01 ~~ 0. 05
R.6.3~R.1.6
Outer diameter, mm
Thickness mml
Thickness of cylinder, mm
Radius of chamfered edge, mm
Working surface
Cylinder surface
Roughness
QB/T2405—1998
See Table 8 for the entry drill (JW) and exit drill (CW). Table 8
Width, mm
Thickness, mm
Length.mm
Tile inclination angle
Lead-up angle, (\)
Lead-up surface length, mm
Front edge radius, mm
Rear edge radius, mm
End edge radius, mm
Effective part of locking surface
Lead-up surface
Disc nail drill (YD) See Table 9.
Outer diameter, mm
Thickness.mm
Length, mm
End chamfer radius.mm
Side chamfer radius, mm
Effective part of arched surface
Chord plane
Other surfaces
≥1/3H
0. 01~0. 05
R.6.3~R.1.6
(<32°)±30°
0. 10～0. 25
0mm
Side inverted building radius, mm
Effective part of the arch surface
Chord plane
Other surfaces
≥1/3H
0. 01~0. 05
R.6.3~R.1.6
(<32°)±30°
0. 10～0. 25
0mm
Side inverted building radius, mm
Effective part of the arch surface
Chord plane
Other surfaces
≥1/3H
0. 01~0. 05
R.6.3~R.1.6
(<32°)±30°
0. 10～0. 25
0
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