This standard specifies the representation of threads and threaded fasteners. This standard applies to drawings and related technical documents of mechanical industrial products. Other drawings and technical documents may also be used for reference. GB/T 4459.1-1995 Mechanical drawing representation of threads and threaded fasteners GB/T4459.1-1995 Standard download decompression password: www.bzxz.net

ICS01.100.20
National Standard of the People's Republic of China
GB/T 4459.1
Mechanical drawings ... 44.59.±—84
This standard is equivalent to the standard D6410—1993 Technical Drawings—Methods for Representing Threaded and Screwed Parts 1 Main Content and Scope of Application
This standard specifies the method for representing threaded fastening parts. This standard is applicable to the samples of industrial products and related technical documents. Other drawings and technical documents can also be referred to. 2 Reference International Standard
GE1117.4 Mechanical Drawings
GB 4453. 1 Mechanical drawing F sample drawing fast
GB4458.4 machine reduction drawing size juice
B3 fuel steel, according to the mother and accessories name between our store G5276 model learning parts, noise inspection, according to the nail, stud and nut size code standard GB/T11791 terminology
3 exhaustion representation
31 the projection of the effect of the projection is represented by a thick solid line, the projection of the tooth network is represented by a thin solid line, and the angle or return part of the bat pole is represented by a surface : In the projection of the vertical line drawn by the drawing, the thin solid line indicating the bottom of the tooth is only drawn about 3/4 (the position of about 1/4 of the figure is not specified). At this time, the projection of the angle on the hole of the grafting rod should be drawn (Figure 1-3! In the projection of the line, when it is necessary to indicate part of the frequency, the thin solid line indicating the bottom of the tooth should also be appropriately left blank, as shown in Figure 4.
Approved by the State Technical Supervision Bureau on November 23, 1995, and approved on July 7, 1996 1 Implementation
GB/T 4459. 1-1995
GB/T4459.1-1995
3.2 The effective thread stop line (abbreviated as the stop line) is indicated by a thick solid line. The external thread stop line is shown in Figures 1 and 2, and the internal thread stop line is shown in Figures 3 and 5a
3.3 The thread part is generally not required to be drawn. When the frequency is required to be expressed, the part is drawn with a thin solid line 30° from the axis (Figures 1 and 5a). 3.4 All lines of invisible threads are drawn with solid lines (Figure 6). 3.5 In particular, whether it is an external thread or an internal thread, the cut surface and the cut surface in the cut view or contact view should be drawn with a thick solid line (Figures 2 to 5). 3.6 When drawing a non-penetrating honeycomb hole, the filling depth and the thread stop depth should generally be respectively increased (3.5a). 3.7 When it is necessary to indicate the thread type, it can be made according to the form of Figure 7~S. #8
G5/T4459.1—1395
3.5 The external thread pattern is shown in Figure 11. Figure
3.9 When the internal and external thread patterns are shown in the same way, the part containing the thread should be connected to the external thread end, and the rest of the part should still be marked in their own way. (Figure 1, 3,.
4 Method of marking thread patterns
GE/T 4459.11995
4.1 The standard rate is relatively high, and the thread pattern specified in the corresponding standard should be indicated (dead record A) 4.7 The common diameter is: as the single inspection data, and the control penalty should be the size line of the major diameter (Figure 71) or its protrusion line (use 15-).
Tr32×6L.H
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GB/14459.1—1995
4.3 The pipe period is relatively long, and its mark-law should be noted on the lead-out carrier. The lead-out line should be led out from the big firm place (Figure 18--20) or from the symmetrical center (Figure 21)
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4.4 For deep lines, its mark-law should be noted on the lead-out line, and the lead-out line should be led out from the person (Figure 22) or from the symmetrical center. It can also be directly held on the line from the pressure point (Figure 25). z± 14 -s
4.5 For non-standard threads, the thread type should be drawn, and the required dimensions and related requirements should be indicated (Figure 24). 0:1
Figure 24
B/T4459.1—1995
4.6 The thread length marked in the drawing shall refer to the effective thread length excluding the thread end (Figure 35). Otherwise, it shall be separately indicated or marked according to the actual situation (Figure 2).
Figure 26
5 Method of marking effective thread pairs
5.1 When necessary, the required thread pair shall be marked in the assembly drawing. The marking method shall be in accordance with the provisions of the corresponding thread standard (see Appendix A).
5.2 The marking method of the auxiliary mark is the same as that of the thread mark. Metric thread: The mark should be marked directly on the diameter or on the lead-out line (Figure 7): For threaded screws, the mark should be marked with a lead-out line from the major diameter of the mating part (Figure 28); for screw thread, the mark should generally be marked with a lead-out line from the major diameter of the mating part, or it can be marked directly on the dimension line drawn from the base (Figure 29).
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5 How to draw threaded screws in assembly drawings
GB/T 4459.1995
Hr Scene/R Announcement
M1×1-GB:415/2M10wwW.bzxz.Net
6.1 In the surface type, when the cutting plane is close to the axis of the rod, the bolts, nuts and nuts are all in accordance with the process structure of the two-piece tightening effect of the undrawn company (type 3038), such as the angle, back cut, shrink collar, store, etc. can be omitted (Figure 31~6.2 In the assembly cabinet, the thread that is not penetrated can be omitted, and only the effective part of the flash depth does not include the fuel (37~·32).
GH/T4459.
E-3 In the assembly drawing, the common explosion holes, screw heads and explosion nuts can also use the simplified function method listed in Table 1, as shown in Figure 33. House number
Six negative heads
(Infant control)| |tt||(screw"
medical column head
upper hexagon
(lizard nail
Yuanshi inner hexagon
(lifting)
Youyi opening
(screw hitting)
countersunk opening loss
(screw rainbow)
semi-sunk opening
picture support head loss
(screw)
CH /T4459.1—1995
Opening of cover
(Current nail)
Opening of tile head
(Moon nail)
Six net angles
Hexagonal trace
(Nut)
Countersunk cross finger
(Screw lamp)
Ten yuyan
(Dry nail)
GA/T 4459.1-1995
Continued Table 1
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