91精品国产91_国产伦精品免费视频_日韩久久一级片_国产精品美女免费看

Patent Operation Platform

Patent

[CN 201911249558.2] precision machining tooling for mechanical press parts


[CN 201911249558.2] Title of precision machining tooling for mechanical press parts: Application number of precision machining tooling for mechanical press parts: CN 201911249558.2 Applicant: Jiamusi University Application Date: 2019-12-9 Patent Type: Invention Application for a precision machining tooling for mechanical press parts, including: a card, the card specifically includes a bottom plate, two support plates and a side plate arranged at vertical intervals on the bottom plate, and support shafts on the upper parts of the two pieces, the upper end face and the front end face of the supporting plate are at an included angle of 90 ° and transitioned through rounded corners, and the bottom plates outside the two supporting plates are respectively provided with arc-shaped guide rail grooves; 90 ° rotating worktable, the 90 ° rotating worktable includes a worktable, a support rod and an arc-shaped guide rail, the worktable is hinged with a self-lubricating shaft sleeve arranged at the bottom, the worktable is provided with a V-shaped groove and a trapezoidal positioning block; the internal gear pair includes a sector internal gear installed on the lower surface of the work surface. It has the advantages of stable structure, high rigidity, improved processing efficiency, high clamping and positioning accuracy, high rotary repeated positioning accuracy, firm and reliable braking, etc., which improves the quality and efficiency of parts processing.

主站蜘蛛池模板: 久久色精品视频| 日本一区二区在线视频| 日日噜噜噜夜夜爽亚洲精品| 伊人久久99| 久久99亚洲热视| 日韩在线视频国产| 国产99久久久欧美黑人| 久久99久久99精品| 欧美亚洲一级片| 日本黄网免费一区二区精品| 亚洲欧洲精品一区| 一区二区三区四区不卡| 国产成人亚洲综合91| 国产精品高潮在线| 国产熟女高潮视频| 精品国产一区二区三区在线观看 | 久久久久人妻精品一区三寸| 欧美日韩国产不卡在线看| 亚洲欧美日韩在线综合| 777精品久无码人妻蜜桃| 国产精品久久激情| 97久久国产亚洲精品超碰热| 中文精品视频一区二区在线观看 | 日韩亚洲欧美视频| 亚洲国产精品www| 日韩中文字幕久久| 日韩免费观看网站| 欧美极品日韩| 欧美成人中文字幕在线| 欧美亚洲国产成人精品| 免费观看国产精品视频| 久久久久国产视频| 久久国产日韩欧美| 国产精品久久久久久久久久99| 国产精品久久久久久久久久99| 国产精品91在线| 亚洲中文字幕无码专区| 日韩精品综合在线| 久久躁狠狠躁夜夜爽| 国产精品亚洲网站| 中文字幕一区二区三区四区五区六区|