双腿张开被9个男人调教 I 一本在线 I 亚洲一区二区免费 I 国产原创在线 I 麻豆视频国产 I 欧美色精品 I 少妇视频在线 I 欧美色图在线播放 I 国产手机在线 I 精品视频在线一区 I 国产麻豆一精品一男同 I 熟妇高潮一区二区三区 I 草莓视频黄app I 亚洲在线日韩 I 色伊人影院 I 中文字幕十一区 I 国语对白一区二区 I 亚洲超碰av I 精品一区日韩 I 女人色极品影院 I 久久成人欧美 I 美女被c到高潮 I 久久久久久亚洲精品杨幂换脸 I 久久福利综合 I 自拍天堂偷拍 I 美女主播在线视频 I 中文字幕精品无码综合网 I 成人黄色网免费

A numerical control machine tool shank applied in China and with rivets standard

1 national standards GB1094489 "automatic tool changer for machine tool 7:24 cone tool shank 40, 45 and 50 taper shank"

This national standard shank, ISO7388 and international standards in type and size / 1 identical. As shown in figure 7.3-1 and 7.3-1. Compared with ISO7388 / 1, increases the request some necessary technology, marking the surface roughness and shape and position tolerance, in order to ensure the manufacturing quality of the handle, meet the tool automatic processing of repeated tool change accuracy requirements. Various handle which is mainly used in the boring and milling machining center machine tool.

Pull the nail regulated in the 2 national standards, "with the rivet shank 40, 45 and 50, with 7:24 taper taper shank tool automatic tool change machine"

Pull the nail under the national standard, the type and size of the same as the ISO7388 / ii. Can be specified with the standard GB10944 - 89 in the handle with the use of.

3 Japanese standard JIS B6339-1986 "tool shank and rivet with machining center"

This standard applies only to Japan imported machining center and the past few years China's processing center machine tool factory and Japan cooperation design and manufacture of machine tools. It is worked out based on the Japanese machine tool industry association standard MAS4031982 on, and is widely used in japan. The design of our country in 1985 after the machining center machine has changed over to the new national standard of GB10994 and GB10945.

4 national standards GB383783 "machine tool 7:24 cone connection"

The taper shank is mainly used for manual tool changing and heavy boring and milling machine etc..

Two. The type and size of the overall tool system standard JB/GQ5010-1983 "TSG system"

The TSG tool system in the handle, the code (according to the 1990 national standard draft for approval) (JT-45-Q32-120) is composed of four parts, each part of the meaning of the following:

JT- said the tool shank type code.

45- said taper specifications of taper shank.

Q32- said the tool specifications.

120- said the work length shank.

It said: the tool for automatic tool changer machine with 7:24 taper tool handles (GB10944), taper shank for No. 45, front spring clamp, the maximum clamping diameter 32mm, length of the handle (taper shank end distance of 57.15mm in diameter at the front end of the spring collet) for 120mm.