This standard specifies the type, group, series code and the method of indicating the machine model and name of special processing machine tools. This standard is applicable to all types of special processing machine tools. JB/T 7445.2-1998 Method for compiling special processing machine tool models JB/T7445.2-1998 Standard download decompression password: www.bzxz.net

JB/T7445.2-1998
This standard shall be implemented from December 1, 1998, and replace JB/T7445.2-94 "Classification of Special Processing Machine Tools".
This standard is proposed and managed by the National Technical Committee for Standardization of Special Processing Machine Tools. The drafting unit of this standard is Suzhou Electric Processing Machine Tool Research Institute of the Ministry of Machinery Industry. The main drafters of this standard are Fu Chunsen, Yu Zhisan and Zhu Hong. This standard was first issued in September 1994.
Machinery Industry Standard of the People's Republic of China
Special Processing Machine Tools
Model Compilation Method
JB/T 7445.2-1998
Replaces JB/T7445.2-94
This standard specifies the category, group and series codes of special processing machine tools and the representation method of machine tool models and names. This standard applies to all types of special processing machine tools. 2 Referenced 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 will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T14896-94 Terminology of special processing machine tools GB/T15375-94 Method for compiling metal cutting machine tool models JB/T7445.1-94 Classification of special processing machine tools 3 Definitions
This standard adopts the definitions given in GB/T14896. 4 Principles for the classification of special processing machine tools, groups, and series, and the form of model composition 4.1 Classification according to the working principle, structure, performance characteristics and scope of use of special processing machine tools. 4.2 Among the same type of special processing machine tools, those with basically the same structure, performance and scope of use are in the same group. 4.3 In the same group of special processing machine tools, those with the same expression of main parameters, whose values ​​are arranged according to the specified requirements, whose electrodes (tools) themselves and relative motion characteristics are basically the same, and whose basic structures and layout types are basically the same, are of the same series. 4.4 The model of special processing machine tools is the code of machine tool products, which consists of Chinese phonetic letters and Arabic numerals. Chinese phonetic letters with fixed meanings in the model, such as class codes and general characteristic codes, are pronounced according to their corresponding Chinese characters. Chinese phonetic letters without fixed meanings, such as major improvement sequence numbers, are pronounced according to the names of the Chinese phonetic letters. 5 Model of general special processing machine tools
5.1 Model representation method
Approved by the State Machinery Industry Bureau on July 17, 1998 and implemented on December 1, 1998
“口” is a capital Chinese phonetic letter. 1
2“△” is an Arabic numeral.
JB/T7445.2-1998
（☆）
3“☆” is an uppercase Chinese phonetic letter, Arabic numerals or a combination of the two. 4If there is “()”, it shall not be indicated when there is no content; if there is content, it shall not be enclosed in brackets. Other characteristic codes
Second main parameter
Main parameter
Series code
Group code
General characteristic code
Class code
Enterprise code
5When other characteristic codes are Arabic numerals, “--” shall be added in front of them, which is read as “至”. If they are uppercase Chinese phonetic letters, “-” may not be added. 5.2 Enterprise code
The enterprise code is the code for the machine tool production unit. Except for those specified by GB/T15375, other enterprise codes shall be filed. 5.3 Classification and codes of special processing machine tools
Special processing machine tools are divided into 10 categories, and the category codes are represented by uppercase Chinese phonetic letters, see Table 1. Table 1
Electric spark
Processing machine tools
5.4 General characteristic codes
High energy beam
Processing machine tools
Plasma arc
Processing machine beam
Magnetic pulse
Processing machine tools
Magnetic abrasive
Processing machine tools
Processing machine tools
Other special
Processing machine tools
When a certain type of special processing machine tool has one of the following general characteristics in addition to the ordinary type, the general characteristics are represented after the category code. Generally, only one general characteristic is indicated in a model (in a few special cases, two can be indicated). The general characteristic code has the same meaning in various types of special processing machine tools. See Table 2 for the general characteristic codes of special processing machine tools. Table 2
General characteristics
High precision
5.5 Group and series codes of special processing machine tools
5.5.1 Group code
Each type of special processing machine tools is generally divided into 10 groups. The group code is represented by an Arabic numeral and is located after the type code or the general characteristic code.
5.5.2 Series code
Each group of special processing machine tools is generally divided into 10 series. The series code is represented by an Arabic numeral and is located after the group code. 182
5.6 Method of expressing main parameters
JB/T 7445.2—1998
The main parameter is the first main parameter. The main parameter in the model is generally expressed in converted value, which is located after the group and series code. When the conversion value is greater than 1, take an integer. When the conversion value is less than 1, it is expressed as the main parameter value and *0 is added in front. The unified name and group of special processing machine tools, the system division and the expression method of the main parameters can be found in .2. 5.7 Expression method of the second main parameter
The second main parameter should be located before other characteristic codes and is also expressed by the conversion value. The conversion method is the same as the first main parameter. Whether the second main parameter is included in the model is determined by the enterprise.
5.8 Other characteristic codes and expression methods
Other characteristic codes are mainly used to reflect the characteristics of various types of machine tools. For example: for general special processing machine tools, it can be used to reflect different design sequence numbers; for EDM machine tools, it can be used to reflect different pulse power supplies, etc.; for high energy beam processing machine tools, it can be used to reflect Different high-energy beam processing devices, etc.; for CNC machine tools, it can be used to reflect different CNC systems, etc.; for multi-function machine tools, it can be used to supplement the representation of certain functions; for general machine tools, it can reflect the structural characteristics, major improvements and modifications that need to be distinguished. Other characteristic codes are represented by Chinese pinyin letters. Except for the two letters "1, O", other letters can be used. When a single letter is not enough, a combination of two letters can be used, such as AB, AC,... Read it in Chinese pinyin letters, and if necessary, it can also be read according to the corresponding Sinological meaning.
Other characteristic codes can also be represented by Arabic numerals or a combination of Arabic numerals and Chinese pinyin letters. 5.9 Examples of general special processing machine tool models
Example 1: The horizontal stroke of the worktable is 400mm CNC reciprocating wire EDM (high-speed wire EDM), its model is DK7740.
Example 2: CNC unidirectional wire EDM (low-speed wire EDM) with a worktable lateral stroke of 320mm, its model is DK7632.
Example 3: EDM forming machine with a worktable width of 250mm, its model is D7125. Example 4: EDM gear running table machine with a maximum workpiece diameter of 500mm, its model is D8550. Example 5: Vertical electrolytic forming machine with a worktable width of 400mm with a digital display device, its model is DJX3140. Example 6: Ultrasonic polishing machine with a maximum power of 50W and a fifth major improvement, its model Example 7: The electrolytic cylindrical grinder with a maximum grinding diameter of 120 mm is model FH2112. Example 8: The shot peening polishing machine with a maximum table diameter of 400 mm is model QT8040. Example 9: The CNC reciprocating wire EDM (high-speed wire EDM) with a worktable lateral travel of 500 mm, which has undergone the third major improvement, is model DK7750C. 6 Special-purpose machine tool models
6.1 Method of indicating the model of special-purpose machine tools
Design sequence number
Class code
Enterprise code
1 The method of indicating the enterprise code shall be in accordance with Note 4 of 5.1.
2 The method of indicating the class code shall be in accordance with the provisions of Table 1 of 5.3. 3 The design sequence number shall be expressed in accordance with Note 3 of 5.1. 183
JB/T 7445.2-1998bZxz.net
6.2 Design sequence number of special-purpose machine tools Design sequence numbers of special-purpose processing machine tools shall be arranged according to the design sequence number of the design unit, starting with "001", located after the class code, and separated by "—", read as "to".
6.3 Model examples of special-purpose processing machine tools Example: The 103rd special-purpose machine tool designed and manufactured by a special processing machine tool production unit has a model number of ☆口--103. Unified names of special processing machine tools and the division of classes, groups and series 7
7.1-General description
7.1.1 The name, type, group, series and main parameters of general-purpose special processing machine tools must comply with the provisions of 7.2. 7.1.2 The measurement units of the main parameters are: dimensions in millimeters (mm) and power in watts.
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