【導(dǎo)讀】如果需要選擇表中未列出的設(shè)備,需要與指導(dǎo)老師協(xié)商。機(jī)械制造基礎(chǔ)課程設(shè)計(jì)是在學(xué)完了機(jī)械制造技術(shù)基礎(chǔ)之后進(jìn)行的下一個(gè)教學(xué)環(huán)節(jié)。綜合訓(xùn)練和準(zhǔn)備。路線安排、工藝尺寸確定等問題，保證零件的加工質(zhì)量。提高結(jié)構(gòu)設(shè)計(jì)能力。學(xué)生通過設(shè)計(jì)夾具的訓(xùn)練，應(yīng)當(dāng)獲得根據(jù)被加工零件的加工要求，設(shè)計(jì)出高效、省。學(xué)會(huì)使用手冊及圖表資料。掌握和本設(shè)計(jì)有關(guān)的各種資料的名稱出處。能夠做到熟練運(yùn)用。生產(chǎn)綱領(lǐng)為中批或大批生產(chǎn)。對(duì)零件主要加工表面的尺寸，形狀及位置精度、表面粗糙度以及涉及基準(zhǔn)等進(jìn)行分析；零件圖應(yīng)按機(jī)械制圖國家標(biāo)準(zhǔn)仔細(xì)繪制，除特殊情況經(jīng)指導(dǎo)教師同意外，均按1：1比例畫出。件下，一般是采用通用機(jī)床和專用夾具。最后，應(yīng)標(biāo)明個(gè)加工表面在本工序加工后的尺寸、公差及表面粗糙度。了解工件情況、工序要求和加工狀態(tài)。設(shè)計(jì)方案的確定是一項(xiàng)十分重要的設(shè)計(jì)程序，方案的優(yōu)劣往往決。這四條原則如果單獨(dú)拿出來分析，有些是互

　　

【正文】 iting cold wind, the first time rushed to the scene, on the icy pavement of salt disposal. Because the temperature is too low, just melt water immediately freezes, addition to the ice work to increase the difficulty. To ensure In addition to the re anization of the depths of the traffic safety, road people braved the icy put reflective cones and warning signs, endure cold at minus 2,3 of Jiulianshan patrols until one in the morning. Just before dawn, Lianping Highway Bureau personnel on the icy road salt ice melting processing until ten o39。clock, ice melting ice success, the road gradually returned to normal traffic. In the cold winter night, which people do not miss the warm bed, which people do not miss the warm home. However, our highway on the road to the owners of the masses can go home early, the night fighting to secure the avoidance of the road safety and smoothness, fulfill their responsibility. Xi General Secretary Every Party member cadre cautioned against said: blacksmith needs self hard . two regulations , is our own hard standard test, more exercise every party members and 第 28 頁 共 116 頁 cadres of the fire. We should continue to strengthen the party two regulations, conscientiously in practical work, practical play road, the road for the development of the cause of Heyuan and struggle. In the industry domain report the situation of road traffic in recent years, in the province highway departments of the concern and support, our bureau management department based on the job, loyalty duty, best service, to further promote the highway management standardization, legal, scientific and information technology to improve the management level and service quality. This will be my last work is as follows: first, around the center, go all out to greet the seizure in 2020, meet national examination is my bureau work. As the highway management department, we focus on the work of the center to strengthen road renovation and management as the focal point, further optimize the service environment, improve service levels. Inspection, the inspection group and the Ministry of transport, the Bureau under the leadership of the ministries and agencies highly evaluated and fully affirmed. (a) increase road area remediation efforts. The programme of work, strengthen the anization and leadership. The timely 第 29 頁 共 116 頁 development of the city of *** mon trunk highway area environment remediation plan , along the road signs and markings, traffic safety facilities, on both sides of the green, advertising signs, control area illegal construction and implementation of remediation tasks to the relevant departments, clear work time of the node to ensure rectification work timely. Set up road area special rectification work leading group, implement a bureau, the Bureau of the county (District), the project road site domain environment prehensive improvement Mechanism. To ensure that the work carried out smoothly, the bureau also anized the city road managers participated in the regulation of road region and the relevant laws and regulations of the special training. 2. Active butt joint is reported, actively strive for the support of. Local Party mittee and government support is the job As a magic weapon, I am one of the Bureau of the principal leaders repeatedly attack inspection remediation and road area to the principal leaders of the municipal report. * * *, the Secretary of municipal Party mittee, mayor * *, * * *, vice mayor of many times the rate of the relevant departments directly under the responsible person indepth National 第 30 頁 共 116 頁 Highway G105 line, G205 line, provincial S341 line and the other highway project site, onsite office, coordination solve engineering construction and environmental prehensive renovation in the presence of difficulties and problems. Last year, national highway along the county (District) government led anizations deploy traffic, urban management, public security, land, environmental protection, industry and merce, highways and other related departments, to carry out to dismantle illegal construction and ground structures, cleaning up illegal standard Records label as the main content of the road domain integrated environmental remediation activities and achieved good results. 3. Pay attention to prehensive management, improve the effectiveness of remediation. Road construction control management has been strengthened. According to the relevant provisions of the laws and regulations of the Highway Law and highway safety regulations for the protection of and so on, county * *, * * County People39。s Government on highway construction control area were delineated and issue a public notice, * * County People39。s government also approved by the executive meeting of the government through discussion, implementation of road boundary markers of 73 million yuan of special funds input, 第 31 頁 共 116 頁 stake setting. According to statistics, last year the city has erected building control zone peg 820, construction control area boundary markers 815 . the second is highway greening and beautification work enhance the road area remediation effectiveness. Will highway greening and beautification work as road area remediation of a key, invite garden experts to guide the design of green, the implementation of high standards for ecological landscape highway activities to create, five years, I board greening mileage of more than 900 kilometers, appropriate road greening greening rate of 100%, effectively enhance the city road greening level and grade, adds a sharp scenery line for **********. Third, rectification of illegal construction and occupation of the road has been checked. By through the town, crossing the road on many occasions to carry out con