A simplified approximate calculation method is present in this paper for the central principal axis stiffness of numerical control processing.

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Numerical control lathe have following outstanding superiority than traditional lathe include:Can process out complicated parts, such as the curve coming out in traditional machine tooling, curved surface,etc;Because computer have superb operation ability is can instantaneous to calculate out each coordinate axis instantaneous amount of exercise that should move accurate, So can compound into the complicated curve or curved shttp://www.51lun-wen.cnurface ;Can realize automation that process is and flexible automation, so efficiency constant traditional lathe raises by 3-7 times;Because the computer has memory and stores ability ,Can carry out automatically according to the order that the procedure stipulates,so realize automation;Proceshttp://www.51lun-wen.cnng precision of part high, size disperse degree light, make and assemble easy, No longer need to" repair the damaged parts of a machine and supply replacements";Can realize the concentration of many processes,have many kinds of self-containment functions,such as autoalarm, controlling, automatic compensation automatically,etc;Therefore can realize that nobody guards and processes for a long time.

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Numerical control lathe have following outstanding superiority than traditional lathe include:Can process out complicated parts, such as the curve coming out in traditional machine tooling, curved surface,etc;Because computer have superb operation ability is can instantaneous to calculate out each coordinate axis instantaneous amount of exercise that should move accurate, So can compound into the complicated curve or curved surface ;Can realize automation that process is and flexible automation, so efficiency constant traditional lathe raises by 3-7 times;Because the computer has memory and stores ability ,Can carry out automatically according to the order that the procedure stipulates,so realize automation;Processing precision of part high, size disperse degree light, make and assemble easy, No longer need to" repair the damaged parts of a machine and supply replacements";Can realize the concentration of many processes,have many kinds of self-containment functions,such as autoalarm, controlling, automatic compensation automatically,etc;Therefore can realize that nobody guards and processes for a long time.

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In our work, some useful conclusions were obtained from axis-symmetry system, which are in accord with either the experimental results or the results of numerical simulation reported in foreign countries. An excentric Bridgman system which is an improved experimental system reported in a foreign country is also simulated.

本文進(jìn)行的軸對稱系統(tǒng)模擬得到了一些有益的結(jié)論，它們或者與已有的實(shí)驗(yàn)結(jié)果相符合黄色网站在线观看不卡，或者與國外報(bào)導(dǎo)的數(shù)值模擬工作相一致26uuu.com；本文還根據(jù)國外報(bào)導(dǎo)的一個(gè)改進(jìn)的實(shí)驗(yàn)系統(tǒng)進(jìn)行了偏心Bridgman系統(tǒng)的模擬。

The numerical experiment is done by using finite element analysis. The dynamic responses are simulated for of integrate anchorage system and anchorage systems with different defects through 1-D and axis symmetry numerical calculate.

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Based on the lumped mass method and Newton's second law, the numerical model of the force and movement response for fishing nets in current was set up, and then the dynamic deformation and the equilibrium configuration of the plane net in current along the positive direction of x-axis were studied by means of computer numerical simulation method.

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Both numerical control induction machine tool X-Z axis and slew workbench of part drive by numerical contral, the coil feed motion is drived with servo motor which joins to ball screw assemblly to carry out.

數(shù)控感應(yīng)淬火機(jī)床X-Z軸和工件的回轉(zhuǎn)工作臺均采用數(shù)控驅(qū)動A片网站视频在线观看，感應(yīng)頭的進(jìn)給運(yùn)動通過伺服電機(jī)帶動滾珠絲杠來實(shí)現(xiàn)另类黑人欧美啪啪亚洲图片。

Both numerical control induction machine tool x-z axis and slew workbench of part drive by numerical contral,the coil feed motion is drived with servo motor which joins to ball screw assemblly to carryout.

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