This part specifies the arrangement method of parts and components serial numbers in mechanical assembly drawings. This part is applicable to the drawing of mechanical assembly drawings. GB/T 4458.2-2003 Part and component serial numbers and their arrangement method in mechanical drawing assembly drawings GB/T4458.2-2003 Standard download decompression password: www.bzxz.net

GH: 1445 layout plan is divided into five parts: Part 1: Machine drawing method
Part 2: Mechanical drawing:
Assembly center parts, component numbers and arrangement methods Part 3: Machine planning
Axonometric drawing
Part 4: Random drawing
Ruler method
Part 5: Mechanical drawing method GB/T4458.2-2303wwW.bzxz.Net
Part 2 is G/T5R. This part replaces the parts T.2-101 machine shooting rate installation drawing part
part number and its arrangement method. This part has the following changes compared with GB42: Chapter 3 "General requirements" is changed to "Annual requirements", 3.4 is added to the provisions of the guidance and drawing used in the installation drawings, 3.5 stipulates the writing method of the parts in the drawings;
4.5 and 4.6 will be changed to \Install in the middle and arrange in the direction of flatness or verticality, and the following two methods are used to shorten the writing method;
The provisions of 1D1,3) have been revised accordingly. This part is submitted by the Technical Committee for review and approval: China Academy of Mechanical Technology, China Institute of Standardization, and Industrial Research Institute; the main drafters are Yang Donglan, Fei Wen, Hou Weiye, Li Xuejing, and Dian Yang. The versions of this part are as follows: 6T12-4: T115.2--191t Scope
Mechanical drawing
Serial numbers and arrangement methods of parts and components in assembly drawings Most of the current factories use the arrangement method of parts and components serial numbers in assembly drawings. Part 10 Mechanical drawing for use with this part:
2 Normative references
GB/T4458.2—2003
The clauses in the following documents become clauses of this part through reference in this part (/small 5H). The documents issued after the expiration of the month, all subsequent amendments (excluding the contents of the revised version) are not applicable to this part. The latest edition of this document shall apply to this part.
154531 Mechanical system ac981.s05s8-2! GB41>.4—202 Mechanical system cable ISO-34.MU1;G1T4437.8:20V3 3.2 The serial numbers of parts and components in the drawing shall be in accordance with the provisions of GB/T4157.2-2000:3.5 The writing of the body in the assembly drawing shall be in accordance with the provisions of GB/T4157.2-2000:3.4 The arrangement method of serial numbers shall be as follows: 4.1.1 In the drawing, the following methods shall be used to indicate the serial numbers of the parts and components: 4.1.2 In the drawing, the serial numbers of the parts and components shall be in accordance with the provisions of GB/T4157.2-2000:3.5 The writing of the body in the assembly drawing shall be in accordance with the provisions of GB/T4157.2-2000:3.6 The writing of the body in the assembly drawing shall be in accordance with the provisions of GB/T4157.2-2000:3.7 The writing of the body in the assembly drawing shall be in accordance with the provisions of GB/T4157.2-2000:3.8 The writing of the body in the assembly drawing shall be in accordance with the provisions of GB/T4157.2-2000:3.9 The writing of the body in the assembly drawing shall be in accordance with the provisions of GB/T4157.2-2000:3.10 The writing of the body in the assembly drawing shall be in accordance with the provisions of GB/T4157.2-2000:3.11 The writing of the serial numbers shall be in accordance with the provisions of GB/T4157.2-2000:3.12 The writing of the body in the assembly drawing shall be in accordance with the provisions of GB/T4157.2-2000:3.13 The writing of the body in the assembly drawing shall be in accordance with the provisions of GB/T4157.2-2000:3.14 The writing of the serial numbers shall be in accordance with the provisions of GB/T4157.2-2000:3.15 The writing of the The horizontal benchmark (fine actual combat) work or return (thin solid line can be annotated with library number serial number than the assembly medical it annotated small digit number:)
Figure 1 The method of annotating serial numbers in assembly drawings
4.12 In the horizontal four actual combat) or example (year I can annotate the store number, the storage number is smaller than the whole matching drawing size industry number GB/:4458.22303
number wave two number figure
413 can sign the model non-permitted victory nearly annotated character scene, the font number Ning high flow matching diagram city new annotate the second exciting shot font number one safety must two figure 1.
4.2 an assembly due to the gradual arrangement of numbers in the form of
4.3 bear the need between, parts use a serial guide, generally only let the book can be issued multiple times, you can, 2 must be the model year standard 4.4 can refer to the practice should be white new shot The visible part of the guard needs to be grabbed! Stop, and change the specification point, see the figure, if the part pointed to is not accurate, it is inconvenient to use the black dot on the surface, you can use the guide to carry it. Take the lead, the finger should be pressed inside the wheel, and the 2 guide sections can be solid. When the center line of the finger passes through the area with the control line, it should be parallel to the other lines. 10
Figure 2 The end of the guide line can be drawn according to the application of the arrow. The line can be extended. The position can only be bent. --Red tightness can be used to check the assembly relationship to eliminate the confusion of the zero distance. You can use the public introduction of these figures: 1-2-3
around 3 public pig lead end note form
4. The assembly diagram can be aligned with the degree of water according to the square 4, and the three-two-clock method can be installed. 4.5.1 The child is arranged clockwise at a fast speed. The entire example is too continuous, you can! 4.5.2 The serial numbers in the assembly drawing shall be arranged in the order of the controllable assembly drawing. The arrangement of the serial numbers in the assembly drawing shall be determined by the manufacturer. G/T 4453.2—2003
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