【正文】 e cutting speed then selects the permissible value according to pound cutting tool most large dia meter the upper limit. Processing dia meter: 。 Cutting specifications: V= (8 ~ 10) m/Min, s=, rotationa l speed 280r/Min。 Reamer cutter bar and guida nce partial nomina l dia meter d+。 Reamer tolera nce: 。 Cutter bar guida nce partial tolera nces: ~ 。 Leads the set of inside dia meter tolera nce: + ~ . hole processing during monly used working procedure the rema inder drills out the dia meter is 10 ~ 20, in dia meter working procedure rema inder for ( ~ ) mm。 Reams the dia meter is 10 ~ 20, in the dia meter working procedure quantity (above cutting specifications choice provides materia l for ( ~ ) mm by east wind car pany equipment factory design department). 3 parts select 1. Power choice standard The power part with by realizes the cutting tool to revolve and to enter or only uses in for the movement for the movement, this engine bed realized the cutting tool to revolve and to enter for the movement two contents. Each kind of specification power head all has the certain power scope, according to the cutting power which calculates and enters need of for the power, and the suitable enhancement cutting specifications possibility, selects the correspond ing specification the power head, the formula as follows: N moves (N to cut +N to enter)/HkW. In the formula: N moves for the power head electrica l machiner y power。 N cuts is the cutting power, selects the cutting specifications according to various cutting tools, center has extracted by 2 徐州 工 程 學(xué) 院 畢 業(yè) 設(shè) 計(jì) (論文 )the aggregate machinetool cutting force and the power formula。 N enters for enters for the power, is enters regarding the hydraulic pressure power head for the oil pumping station consumption power, genera lly for ( ~ 2) kW。 H is the transmission efficiency, when the headstock is short in 15, when h=, is more tha n 15, h=. 2. Engine bed actual power About this vertica l aggregate machinetool divides two electrical machiner y to lead more tha n two axleboxes to carry on the processing. Regarding the le ft half part of multi axleboxes cutting tool, when processes 1 ~ 7 holes as well as III location processes 10 holes its power sum total: N/KW=7+= Because the le ft headstock is short in 15 with the drill bit, therefore H=, N/KW=Regarding the right half part of multi axleboxes cutting tool, expands the articulation 1 ~ 7 holes in V location as well as attacks the silk, the drill bit actual power: N/KW=7= Because the right headstock is short in 15 drill bits, therefore H=, N/KW=1247。= the electrical machiner y As a result of this engine bed in the actuation aspect not specia l request, selects ordinary also is the most reliable Y series electrical machinery, it is the seal from fan Leng Shishu the cage threephase asynchronous motor, substitutes for the J02 series the renewa l product. The le ft half branch needs the power is , looks up Y series threephase asynchronous motor table, selects the Y123S24 model the electrical machinery, the rated power is , selects this model electrical machiner y quite to be appropriate. The right half branch needs the power is , looks up Y series threephase asynchronous motor table, selects the Y112M26 model the electrical machinery, the rated power is , selects this model electrical machiner y quite to be appropriate. 4 jigs designs 1. Bearing seat drill hole aggregate machinetool jig analysis A. According to the work piece different working condition, ma y differently have each kind to insta ll the method: A) adjusts the peaceful process。 B) jig peaceful process. basic loca lization principle analyzes here to discuss in 6 loca lizations, 6 degrees of freedom eliminations, in order to discovers the appropriate loca lization to cla mp the pla n. An object ma y have 6 independent movements in the space, namely along X, Y, the Z axis translationa l motion, respectively records is X1, Y1, Z1。 Circles X, Y, the Z axis rotation, records is X2, Y2, Z2, in the custom, is called as the above 6 independence movement 6 degrees of freedom. If uses th