【正文】 （ a）加工零件 （ b）刀具位置 圖 87 典型車削加工零件 刀具及切削用量表 刀具編號 刀具規(guī)格 加工內容 主軸轉速 S/r?min－ 1 進給速度 F/mm? r － 1 1 93?精車刀 外輪廓精加工 630 2 切槽刀 切退刀槽 315 3 螺紋車刀 輪廓粗加工 200 程序代碼及說明 程 序 注 釋 O0002 N10 G50 T0101 N20 S630 M03 N30 G00 M08 N40 G01 程序號 建立工件坐標系 主軸正轉，轉速 630r/min 快進，切削液 開 工進，倒角，進給速度 好文檔，好分享，僅供參考 12 N50 N60 N70 W– N80 N90 N100 W– N110 W– N120 G02 W– K– N130 G01 N140 N150 G00 T0100 M09 N160 T0202 N170 S315 M03 N180 G00 M08 N190 G01 N200 G04 N210 G00 N220 T0200 M09 N230 T0303 N240 S200 M03 N250 G00 M08 N260 G92 N270 N280 N290 N300 G00 T0200 M09 N310 M05 N320 M30 精車螺紋大徑 ? 退刀 精車錐面 精車 ?62 外圓 退刀 倒角 精車 ?80 外圓 精車圓弧 精車 ?80 外圓 退刀 返回起點，取消刀具補償，同時切削液關 換 2號刀，并進行刀具補償 主軸正轉，轉速 315 r/min 快進，切削液開 工進，車 ?45 槽，進給速度 暫停進給 5s 快速退刀 返回起點，取消刀具補償，同時切削液關 換 3號刀，并進行刀具補償 主軸正轉，轉速 200 r/min 快進，切削液開 螺紋切削循環(huán) 返回起點，取消刀具補償，同時切削液關 主軸停止 程序結束 好文檔，好分享，僅供參考 13 RICHMOND — After hearing that Washington Redskins tight ends coach Sean McVay had been promoted to offensive coordinator in January, tight end Jordan Reed called McVay to offer his congratulations and ask a question. Reed and McVay grew close last season, and Reed wondered whether McVay would still have time for him. “ Can you believe that?” asked McVay, who smiled and shook his head while recalling the conversation Friday during a break from practice. “He actually thought I’d be too busy for him. You always make time for guys like him.” Jason Reid is a sports columnist with the Washington Post. He joined the Post’s Redskins team in 2020 after 15 years covering many beats at the Los Angeles Times. View Archive Google+ Especially if you’re an assistant coach who hopes to remain employed. Coach Jay Gruden has big plans for the young tight end, whose bination of size, speed — he’s listed at 6 feet 2, 237 pounds and covers the 40yard dash in seconds — and route running make him a major matchup problem for defenses. And with deepthreat wide receiver DeSean Jackson often expected to draw double teams, Reed and others in the Redskins’ receiving corps should benefit from single coverage. No one needs to tell Gruden how to best use Reed. However, if Gruden ever has a question about Reed, he can call on McVay, who knows him better than anyone in the anization. The work they did together last fall could help Reed blast off this year. From the start, they developed a model coachplayer relationship. “He’s o bv iously a great player, but I really enjoy him as a person, too,” McVay said. “He’s a great guy, so you want to continue to be involved with him.” Generally, head coaches are father figures, disciplinarians. Position coaches are supposed to be like big brothers. The best skillfully walk the line of being a supervisor, teacher and friend. They’re the ones in whom players usually confide. During threeplus seasons coaching Redskins tight ends, McVay had a good rapport with all players who reported to him. He took pride in working hard and being honest, 好文檔，好分享，僅供參考 14 figuring that’s the best way to lead. For that, he earned the players’ respect. A thirdround selection from Florida in the 2020 draft, Reed quickly learned that McVay had his back. Whatever he needed — another question answered in the meeting room, extra work after practice or a quick tip on the sideline during games — McVay delivered way before Reed ascended to the top of the depth chart. Some assistants attempt to latch onto fastrisers, hoping