【正文】 附錄 附錄 1英文原文Vertical bearing seat drill hole aggregate machinetool design Author: Cnsaw article origin: Chinese sawing industry network 1 minute working procedure, decides the location type analysis This design vertica l bearing seat drill hole aggregate machinetool, its processes the ponents apply in the automobile extremely widely, should belong to the mass production project, therefore in design time should note to makes the processing to be simple as far as possible, but does not affect the processing quality. 2. Processing pla n formulation The division working procedure needs to consider to the production scale, the processing precision, uses the engine bed the character istic, the static load situation and so on. The division working procedure ma y have two kind of trends: The working procedure centralism and the working procedure are dispersible. The working procedure centralism disperses has its strong point respectively, in genera l, by enhances the productivity in the mass production prima rily, must widely use the multi knives, the single axle and multiple spind le is automa tic or the semia utoma tic engine bed, multiple spind le pla nertype milling machine, aggregate machinetool and so on, therefore adopts the working procedure centralism to be possible to obtain the prominent effect. In this design bearing seat drill hole aggregate machinetool very great degree causes various working procedures to concentrate as far as possible, the displa y aggregate machinetool mer it, at the same time causes each kind of error to reduce to the threshold. Because in this design processes in the ponents 10 holes the partial holes are away from too near, is not advantageous for the processing, therefore separates is two locations pletes, then carries on the ponents position transformation. Below the ma in location selects the pla n after the analysis: 1) loads and unloads, cla mps。 2) drills 7 holes 。 3) drills 3 holes is f14, drills 2 threads bottom holes f14, Kong Haowei 8, 9。 4) drills crosswise hole f14。 5) expands articulation 7 holes 。 6) attacks the silk. 2 pound cutting tools cutting specificationses putation specifications character istic The aggregate machinetool norma l work and reasonably selects the cutting specifications, namely the determination reasonable cutting speed and the work enters to the quantity has the very big relations. The cutting specifications elects the inappropriateness, can cause the aggregate machinetool to reduce stops the loss, enhances the production efficiency, lengthens the cutting tool life, improves the processing quality. a set of design 1徐州 工 程 學 院 畢 業(yè) 設 計 (論文 )3. Is processed 7 holes dia meters is , the processing hole dia meter with leads a set of length, leads the set of inside dia meter size, about the deviation as well as the hole spool thread idea l position displacement relations, like table 1 shows. 4. May know 1 ~ 7 holes by table 1, as well as 8 ~ 10 holes and the bottom hole dia meters are mm, it needs leads a set of length for (32 ~ 40) mm, the inside dia meter size deviation is + ~ +, hole spool thread idea l disa lignment for ( ~ ) mm. 5. Hole processing cutting specifications putation A Processes this casting HB=204 with the highspeed steel drill bit (to drill 1 ~ 7 holes, II location。 Drills 8 ~ 10 holes, III location)。 Drill bit dia meter: 。 Cutting specifications: V= (10 ~ 18) m/Min, s=, rotationa l speed 350r/Min. B. Drills crosswise hole f16 with the highspeed steel drill bit (IV location) to process the dia meter: 16mm。 Cutting specifications v= (10 ~ 18) m/Min。 S= ( ~ ) mm/R。 Rotationa l speed 350r/Min. C. Expands with the hard alloy reamer reams 1 ~ 7 holes (V location) in V location, when expands the articulation 7 holes, uses expands the articulation pound cutting tool, enters for the quantity according to the reamer choice, the cutting speed according to the reamer choice, moreover enters for the quantity should select the permissible value according to the pound cutting tool most minor dia meter the upper limit, th