機(jī)械專(zhuān)業(yè)畢業(yè)設(shè)計(jì)---英文翻譯原文-資料下載頁(yè)
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【正文】 program, after pressing the menu soft key “open”, “copy”, “delete”, the corresponding program operation can be carried out. New program input procedure is as follows. In the program supervisory window, after pressing the key “New program”, a dialogue frame can be seen, then input a new main program and subprogram file. The main program file MPF can be automatically entered and the subprogram file SPF must be inputted with the file name. After inputting these files, press the key “confirming” to receive input. After the new program file is formed and the edit window is seen, the new program can be made. Tool pensation In the programming the received tool motion path involves the motion path of the tool center. When programmig for the workpiece profile and external shape, the different programs will be written out because of the different diameter and length of the used tools. If only these mands above are used, it may be troublesome and plex. Therefore, it is not advisable. These problems can be solved by the tool pensation function. When programming with this function, the program can be made according to the part size in the operation drawing, no need to consider about the certain size of the tool. As long as the correlated pensation mand is added to the program and the correlated data about the tool size is input into the page table “tool parameter set ” which is a machining center system, then when the program is executing the mand, the motion path of the tool center will automatically get corrected according to the given data to ensure that even if using the tools with different specifications , the workpiece with the same size precision can be machined. 1) Zero point offset. Socalled “zero point offset” means the offset value of the part program origin with respect to the machine origin on the X,Y and Zaxes coordinate after a part is mounted to the machine table. When programming parts, it is very important to choose a program origin correctly according to the marked base size on the part. After finishing programming the part and the workpiece will be mounted to an appropriate position of the worktable, the machine is first controlled to zero the X, Y and Zaxes, then the worktable is operated manually to coincide the position of the tool on the X, Y and Zaxes, and coordinate with the pragram origin position of the workpiece and record the three coordinate values. The procedure “zero offset” is set as follows. 畢業(yè)設(shè)計(jì)◆英文翻譯原文 第 6 頁(yè) 共 6 頁(yè) （ 1） Press the key “area conversion” and “zero paint offset” on the control panel. （ 2） Move the cursor to an offset code from G54 to G59, input the recorded X, Y and Z coordinate value and then press the key “carriage return”. 2） Tool pensation. For a general NC machine, radius pensation can only be carried out inside twodimensional plane, so it is necessary to select a cutting plane before tool pensation. In the selected plane G17— G19, the tool itself has tool radius pensation function. The tool with a relevant D number is effective. The controller automatically putes out the tool operation path in the distance between current tool and programming outline. 附 ： 參考文獻(xiàn) ： 〈 1〉 葉邦彥、陳統(tǒng)堅(jiān) ．機(jī)械工程英語(yǔ) (第二版 )． 北京 :機(jī)械工業(yè)出版社 ,2021 〈 2〉吳鳳仙，李春蘭 . 數(shù)控英語(yǔ) . 武漢：武漢大學(xué)出版社， 2021
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