One. Domestic application of CNC machine tool shank and matching pull stud standard
1. National standard GB10944-89 “7:24 tapered tool shank 40, 45 and 50 tapered shank for automatic tool change machine tools”
The shank specified by this national standard is exactly the same as the international standard ISO7388/1 in type and size. See Figure 7.3-1 and 7.3-1 for details. Compared with ISO7388/1, some necessary technical requirements have been added, and surface roughness and geometric tolerances have been marked to ensure the manufacturing quality of the tool holder and to meet the repeated tool change accuracy requirements in automatic machining. It is mainly used in various tool holders of boring and milling machining center machine tools.
2. The pull studs specified by the national standard, “7:24 taper tool shank for automatic tool change machine tools 40, 45 and 50 taper shank pull studs”
The pull studs specified in this national standard are the same in type and size as ISO7388/Ⅱ. It can be used in conjunction with the handle specified in the aforementioned standard GB10944-89.
3. Japanese standard JIS B6339-1986 “Tool shanks and pull studs for machining center machine tools”
This standard is only applicable to machining center machine tools imported from Japan and machining center machine tools designed and produced by some of our country’s machine tool factories in cooperation with Japan in the past few years. It was formulated on the basis of the Japanese Machine Tool Industry Association standard MAS403-1982 and is widely used in Japan. The machining center machine tools designed after 1985 in my country have been changed to the new national standards GB10994 and GB10945.
4. National Standard GB3837-83 “Machine Tool 7:24 Cone Connection”
This kind of taper shank is mainly used for manual tool change CNC machine tools and heavy-duty boring and milling machines.
two. Integral tool system standard JB/GQ5010-1983 “TSG tool system type and size”
The tool handle in TSG tool system, its code (according to the national standard submitted for approval in 1990) is composed of four parts (JT-45-Q32-120), and the meaning of each part is as follows:
JT- represents the tool handle type code.
45-The tapered shank indicates the taper specification.
Q32-Indicates the specification of the tool.
120- indicates the working length of the tool holder.
The tool it represents is: 7:24 tapered tool shank for automatic tool change machine (GB10944), the taper shank is No. 45, the front part is spring clamp, the maximum clamping diameter is 32mm, and the working length of the tool shank (the diameter of the large end of the taper shank) The distance between φ57.15mm and the front face of the collet is 120mm.
Table 1 Tool handle type code
Tool shank type 7:24 tapered tool shank for JT automatic tool change machine tool GB 10944-89BT 7:24 tapered BT type tool shank for automatic tool change machine tool JIS B6339ST 7:24 tapered tool shank for manual tool change machine GB 3837.3- 83MT with flat tail Morse taper tool holder GB 1443-85MW without flat tail Morse taper tool holder GB 1443-85 ZB straight shank tool holder GB 6131-85
Table 2 Use codes and specifications of tools
Code usage Contents indicated by specification parameters J
The diameter of the connecting rod of the straight shank extension tool is also the working length of the tool shank Q
Spring chuck Maximum clamping diameter—working length of tool holder XP
Mounting and cutting flat straight shank tool Mounting tool hole diameter-tool shank working length Z
Mount Morse Short Taper Drill Chuck Morse Short Taper—Working Length of Tool Holder ZJ
Install Morse taper drill chuck Jasper taper shank-tool handle working length M
Morse taper shank number for tools with flat tail Morse taper shank—tool handle working length MW
Morse taper shank number of Morse taper shank tools without flat tail—tool handle working length MD
Mounting short Morse taper shank tool Morse taper shank-tool handle working length JF
Floating reamer reamer block width-tool handle working length G
The maximum tapping specification of the tapping chuck-the working length of the tool holder TQW the minimum boring diameter of the inclined type fine-tuning boring tool-the working length of the tool holder TS the minimum boring diameter of the double-edged boring tool-the working length of the tool holder TZC the minimum boring of the right-angle rough boring tool Hole diameter—tool holder working length TQC inclined rough boring tool minimum boring diameter—tool holder working length TF composite boring tool small hole diameter/large hole diameter—hole working length TK adjustable boring cutter head mounted tool hole diameter—tool holder Working length XS installed side and face milling cutter tool inner hole diameter-tool handle working length XL sleeve type end mill tool inner hole diameter-tool handle working length XMA installed A face milling cutter tool inner hole diameter-tool handle working length XMB Install B-type face milling cutter tool inner hole diameter—toolholder working length XMC install C-type face milling cutter inner hole diameter—toolholder working length KJ install reamer and reamer 1:30 cone big end diameter—toolholder work length
National Standards for CNC Tools
One. Indexable tool insert model compilation standard
1. Indexable turning tool model representation rules
GB/T5343.1, which is equivalent to ISO5680-1989. It is suitable for the model preparation of modular tool heads of indexable external turning tools, face turning tools, anti-shape turning tools and assembling composite tools. The model is also composed of a set of letters and numbers arranged in a prescribed order.
2. Indexable hole milling cutter model representation rules
It is formulated on the basis of ISO7406-1986. It is suitable for the compilation of models of indexable face milling cutters, three-face (groove) milling cutters, sleeve end mills and cylindrical milling cutters. The model is composed of 11 numbers (the face milling cutter has only 10 numbers, and there is no 11th number). The first 1 to 4 positions indicate the characteristics of the cutter body. The number position behind the zigzag sign indicates the blade clamping method and blade characteristics.
3. Indexable shank milling cutter model representation rules
It is formulated on the basis of the international standard ISO7848-1986. Its model also consists of 11 numbers. Among them, 5 numbers indicate the characteristics of the cutter body, two numbers indicate the characteristics of the shank, and the other 4 numbers indicate the clamping method of the insert and the characteristics of the cutting edge length.
4. Indexable insert model representation rules
GB2076-87, equivalent to ISO1832-85, the models of indexable inserts for cutting (including turning inserts and milling inserts) produced by cemented carbide factories at home and abroad meet this standard. It is composed of ten numbers arranged in a certain order by letters and numbers with a given meaning. The 8th and 9th positions respectively represent the cross-sectional shape of the cutting edge and the cutting direction of the insert, which are marked only when needed.
two. Indexable insert standard
1. GB2079-87 (instead of GB2079-80) non-porous cemented carbide indexable inserts: this standard adopts the international standard ISO0883-1995. The standard specifies the series size of 12 types of blades, TNUN, TNGN, TPUN, TPGN, SNUN, SNGN, SPUN, SPGN, TPUR, TPMR, SPUR, SPMR.
2. GB2077-87 (instead of GB2077-80) cemented carbide indexable insert fillet radius: This standard is equivalent to the international standard ISO3286-1976. The standard stipulates that the size series of the tool nose radius rε is 0.2, 0.4, 0.8, 1.6, 2.0, 2.4, 3.2mm.
3. GB2078-78 (instead of GB2078-80) cemented carbide indexable inserts with round holes: This standard is equivalent to the international standard ISO3364-1985. The standard specifies TNUM, TNMM, TNUG, TNMG, TNUA, TNMA, ENUM, FNMM, WNUM, SNUM, SNMM, SNUG, SNMG, SNUA, SNMA, CNUM, CNMM, CNUG, CNMG, CNUA, CNMA, DNUM, DNMM, DNUG, DNMG, DNUA, DNMA, VNUM, VNMM, VNUG, VNMG, VNUA, VNMA, RNUM, RNMM, a total of 36 types of carbide insert size series with round holes.
4. GB2081-87 (instead of GB2081-80) carbide indexable milling inserts: This standard is equivalent to the international standard ISO3365-1985. This standard specifies 13 types of indexable milling insert series sizes SNAN, SNCN, SNKN, SPAN, SPCN, SPKN, SECN, TPAN, TPCN, TPKN, TECN, FPCN, LPEX.
5. GB2080-87 (instead of GB2080-80) counterbored carbide indexable inserts: This standard is equivalent to the international standard ISO6987/1-1993. The standard specifies 12 types of counterbored cemented carbide indexable insert series sizes TCMW, TCMT, WCMW, WCMT, SCMW, SCMT, CCMW, CCMT, DCMW, DCMT, RCMW, RCMT.
three. Indexable milling cutter standard:
1. National standard GB5340-85 for indexable end mills: It is formulated with reference to the international standards ISO6262/1-1982 and ISO6263/2-1982. There are two parts: flat straight shank end mills and Morse taper shank end mills.
2. National standard GB5341-85 for indexable face milling cutters: It is formulated with reference to the international standard ISO6986-1983.
3. National standard GB5342-85 for indexable face milling cutters: it is formulated with reference to the international standard ISO6462-1983.
4. Indexable spiral end mills: The standard specifies end mills with straight or tapered shanks in diameter from 32 to 100 mm. Because of its long cutting edge, it is formed by interlacing multiple pieces of cemented carbide indexable inserts arranged in the direction of the spiral, which is suitable for rough milling.