This standard specifies the model designation rules for indexable turning tools and indexable toolholders. This standard applies to the model designation of turning tools and toolholders with metric size standards. GB/T 5343.1-1993 Model designation rules for indexable turning tools and toolholders GB/T5343.1-1993 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Indexable turning tools and cartridges
Model designation rules
Turning toolholders and cartridgesfor indexable inserts-- DesignationGB/T 5343.1--93
Replaces GR5343.185
This standard equivalently adopts the international standard ISO5608-1989 "Indexable turning tools, profiling turning tools and toolholders--Codes". 1 Subject content and scope of application
This standard specifies the model designation rules for indexable turning tools (hereinafter referred to as "turning tools") and indexable tool holders (hereinafter referred to as "tool holders"). This standard applies to the model designation of turning tools and tool holders with metric size standards. 2 Reference standards
GB2076 Model designation rules for indexable inserts for cutting tools GB2078#
Cemented carbide indexable inserts with round holes
GB2079 Cemented carbide indexable inserts without holes GB 2080
Cemented carbide indexable inserts with countersunk holes
GB/T5343.2 Type dimensions and technical conditions for indexable turning tools GB/T14661 Indexable A-type tool holder
GB/T 12204:
Basic metal cutting terms
3 Model designation rules
The model of a turning tool or tool holder consists of a group of letters and numbers arranged in a specified order, with a total of ten codes, which represent their various characteristics.
The first code uses a letter to represent the clamping method of the blade on the turning tool or tool holder (see 4.1); the second code uses a letter to represent the shape of the blade on the turning tool or tool holder (see 4.2); the third code uses a letter to represent the head form of the turning tool or tool holder (see 4.3); the fourth code uses a letter to represent the size of the back angle of the blade on the turning tool or tool holder (See 4.4); the fifth digit is a letter indicating the cutting direction of the tool or tool holder (see 4.5); the sixth digit is a two-digit code indicating the height of the tool or tool holder (see 4.6); the seventh digit is a two-digit code indicating the width of the tool shank or two letters indicating the type of tool holder (see 4.7); the eighth digit is the symbol "_\ or a letter indicating the length of the tool or tool holder (see 4.8); the ninth digit is a two-digit code indicating the side length of the blade on the tool or tool holder (see 4.9); the tenth digit is a letter indicating the precision turning tool of different measurement bases (see 4.10). 3.2 The first nine digits must be used for any turning tool or tool holder model. The tenth digit is only used for precision turning tools that meet the requirements of 1.10 of this standard.
Approved by the State Administration of Technical Supervision on October 15, 1993, and implemented on July 1, 1994
4 Code regulations
GB/T 5343.1-93
The code indicating the blade tightening method shall be in accordance with the provisions of Table 1. Table 1
4.2 The code indicating the blade shape shall be in accordance with the provisions of GB2076. 4.3 The code indicating the clamping part form shall be in accordance with the provisions of Table 2. Clamping method for bladeswwW.bzxz.Net
When installing a blade without a hole, clamp the blade from the top of the blade. For example, when installing a round hole blade with a pressure plate, tighten the blade from the top of the blade and use the blade hole: For example, when installing a round hole blade with a wedge
When installing a round hole blade, tighten the blade with the blade hole. For example, when installing a lever type, an eccentric type, a pull pad type, etc.
When installing a countersunk blade, the screw directly passes through the blade hole to tighten the blade. Such as pressed hole type
Head form
GB/T 5343.7 . 93
True head measurement cutting
Straight head side cutting
Head end cutting
True head side cutting
Straight head side cutting
Eccentric head cutting
Eccentric head side cutting
Russian head cutting
Editing and recognition
Eccentric head swimming
Head form
GB/T 5343.1 --- 93
Continued Table 2
Edged side cutting and end cutting
Straight side cutting
Straight side cutting
Edged side cutting
Edged side cutting
Jiang: (I) D-type and S-type turning tools or tool holders can also be equipped with round (R-type) blades. 2) The angles shown in the table are all main offset angles
4.4 The code indicating the size of the blade back angle shall comply with the provisions of GB2C7612
Head type
Edged head reverse cutting
End cutting
Straight head cutting
Edged head straight
End cutting
GB/T5343.1--93
4.5 The code indicating the cutting direction shall comply with the following provisions. R: right cutting; L: left cutting; N: both left and right cutting. 4.6 The codes for indicating height shall be in accordance with the following provisions. 4.6.1 Turning tool height
When the tool tip height is equal to the tool bar height, the tool bar height value shall be used as the code. For example: for a turning tool with a tool bar height of 25mm, the sixth digit code is 25. If the height value is less than two digits, add "" before the number, for example: when the tool bar height is 8mm, the sixth digit code is 08.
4.6.2 Tool height
When the tool tip height is not equal to the tool bar height, the tool tip height value shall be used as the code. For example: for a tool holder with a tool tip height of 12mm, the sixth digit code is 12. If the height value is less than two digits, add o\ before the number, for example: for a tool holder with a tool tip height of 8mim, the sixth digit code is 08.
4.7 The code for width is as follows: 4.7.1 For turning tools, the code is the value of the tool bar width. For example: For a turning tool with a tool bar width of 20 mm, the seventh digit code is 20. If the width value is less than two digits, add "_" before the number. For example: if the shank width is 8mm, the seventh digit code is 08. 4.7.2 For tool holders, a two-letter code is used instead of the width. The first letter is always C (tool holder), and the second letter indicates the type of tool holder. For example: for tool holders that meet the requirements of GB/T14661, the second letter is A. 4.8 The codes for length are as follows. 4.8.1 Tool length
For turning tools whose length meets the requirements of the medium and long tool holder series of GB/T5343.2, the eighth digit code is represented by the symbol "_". For turning tools whose length does not meet the requirements of the medium and long tool holder series of GB/T5343.2, the eighth digit code is represented by the symbols specified in Table 3. 4.8.2 Tool holder length
For tool holders whose length meets the requirements of GB/T14661, the eighth digit code is represented by the symbol "_". For tools whose length does not conform to the provisions of GB/T14661, the eighth digit code shall be indicated in accordance with the provisions of Table 3. Table 3
4.9 The code for the blade edge length shall be in accordance with the provisions of GB2076. D
4.10 The code for precision turning tools with different measurement standards shall be in accordance with the provisions of Table 4. E
Special size
5 Examples of turning tool and tool holder models
Example 1:
GB/T 5343.1---93
t, ± 0.08
t, ± 0. 08
a. The method of tightening the blade of the turning tool is to tighten the blade by using the blade hole. b. The shape of the turning tool blade is a regular triangle blade. C. The head of the turning tool is G type (90° offset head external cylindrical turning tool). d. The back angle of the turning tool blade is 0°
c. The cutting direction of the turning tool is right cutting
f. The height of the turning tool shank is 20mm
g. The width of the turning tool shank is 20mm
h. The length of the turning tool is Standard length (l=125mm) -i. The side length of the turning tool blade is 16.5mm
Measurement reference surface
Base outer side and reference end
Reference inner side and reference rear end surface
Reference inner and outer side surfaces and reference rear end surface
i. Indicates the precision turning 14 with the reference outer side surface and reference rear end of the turning tool as the measurement reference
Example 2:
GB/T 5343.1---93
a. The turning tool blade is clamped from the top and using the blade hole
b. The turning tool blade is square
C. The turning tool head is R-shaped (75° offset external cylindrical turning tool)d. The turning tool blade back angle is 0°
e. The turning tool cutting direction is left-cut
f. The turning tool bar height is 25mm
g. The turning tool bar width is 20 mm2
h. The turning tool length is 140mm (standard length: t=150mm)i. The turning tool blade side length is 15.875mm
Example 3:
a. The tool holder blade is clamped by using the blade countersunk hole
b. The tool holder blade shape is 80° rhombus
C.The head of the chuck is L-shaped (90° side cutting and end cutting chuck) d, the back angle of the chuck blade is 7°
e. The cutting direction of the chuck is right-cut
f. The height of the chuck blade is 8mm
g. The chuck type is A-type
h. The chuck length is standard length (=32mm) i. The side length of the chuck blade is 6.4mm
CR 08CA
Additional instructions:
GB/T 5343.1--
This standard was proposed by the Ministry of Machinery Industry of the People's Republic of China. This standard is under the jurisdiction of the National Tool Standardization Technical Committee. This standard was drafted by the Chengdu Tool Research Institute of the Ministry of Machinery Industry. The main drafters of this standard are Wang Hu and Cao Gensheng. This standard was first issued in August 1985.
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