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 201721155471.5] Hammer forging die for processing automobile transmission shaft forgings


[CN 201721155471.5] Title of a Hammer Forging Die for Processing Automobile Transmission Shaft Forgings: Application Number of a Hammer Forging Die for Processing Automobile Transmission Shaft Forgings: CN 201721155471.5 Applicant: Xuchang Zhongxing Forging Co., Ltd. Application Date: 2017-9-11 Patent Type: Utility Model The utility model provides a Hammer Forging Die for Processing Automobile Transmission Shaft Forgings, which includes an upper die and a lower die which face, the opposite ends of the hammering surface of the lower die are provided with positioning grooves, and the hammering surface of the upper die is provided with positioning blocks inserted into the positioning grooves; the new type reduces the number of drawing by changing the hammer forging size of the elongated cavity, Improve production efficiency, the hammer forging part and the receiving part are connected by a 30 ° ramp rounding transition, and the worker can easily move the blank backward without raising the end of the blank during drawing, effectively reduce the labor intensity of workers; the new structure design is reasonable and simple, and effectively solves the problem of multiple times of long hammer forging and difficult forming when the drive shaft forgings are hammered and drawn, and improves material utilization and production efficiency.

主站蜘蛛池模板: 国产在线视频不卡| 国产精品视频免费在线观看| 国产综合免费视频| 亚洲欧美日韩在线综合| 久久久久免费精品国产| 亚洲欧美日韩综合一区| 国产精品69久久久| 国产视频99| 精品人妻人人做人人爽| 欧美一级中文字幕| 欧日韩一区二区三区| 亚洲一区三区在线观看| 国产日韩欧美中文在线播放| 欧美亚洲第一页| 日韩一区二区在线视频| 亚洲专区中文字幕| 99精品在线直播| 精品国产aⅴ麻豆| 久久在线免费观看视频| 日本一区二区高清视频| 亚洲国产日韩美| 中文字幕精品在线播放| www欧美日韩| 97国产精品久久| 在线视频一区观看| 一区二区三区四区视频在线观看| 国产精品免费成人| 国产精品第一页在线| 国产成人精品av在线| 国产精品免费久久久| www.精品av.com| 中文字幕日韩精品无码内射| 国产精品久久久| 国产精品aaaa| 国产精品久久久久久久久久东京| 精品久久久久久综合日本| 国产一区二区色| 国产精品1234| 三级三级久久三级久久18| 91精品国产综合久久久久久久久| www亚洲精品|