29AprThe acceleration of the feed axis can be ignored under this working conditionThe acceleration of the feed axis can be ignored under this working condition. The selected rated torque of the servo motor must match the torque requ
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29AprFirst calculate the cutting torqueFirst calculate the cutting torque output by the output gear meshing with the rack according to the maximum cutting resistance, consider the reduction
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29AprSo as to determine whether the torqueSo as to determine whether the torque of the feed motor matches when the rack and pinion drive cutting,Maximum cutting resistance F machining = 5 000N
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29AprTo drive each reducerTo drive each reducer with a double rack and pinion, the output torque is T minus = T combined / 1.5 = 311/1.5 N·m = 207 N·m. The load is converted to
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29Aprwhich meets the requirementsChoose ßis22/3000 servo motor, motor rated torque 20N·m>12.2N·m, the servo motor meets the design requirements.The maximum output torque of the select
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29AprAnalysis formula T minus = ?Analysis formula T minus = T combined/[(i×η1)×1.5]=(FR/η)/[(i×η1)×1.5]=(F R)/(i×η1×η×1.5). According to the formula, if the selected motor torque does
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29AprReselect the motor and select the motor with the larger torqueReselect the motor and select the motor with the larger torque. This method is the simplest but not economical. Not low carbon, generally not recommen
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29AprYou need to go back and recheck the fast forward speed according to (Nmax/i)×...You need to go back and recheck the fast forward speed according to (Nmax/i)×(πD/1 000)=v to ensure that the fast forward speed is also satisfied. Req
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28AprThe inertia of the rack and pinion drive feed servo motor is matchedThe inertia of the rack and pinion drive feed servo motor is matched. The moment of inertia of the servo motor must match the moment of inertia of the
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28AprThe idea of considering the problem is as followsThe idea of considering the problem is as follows: first calculate the moment of inertia of the load according to the formula, find the moment of iner
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28AprThe moment of inertia of the motorPlus planetary reduction The moment of inertia of the motor itself is converted to the total moment of inertia of the motor, and then it is compared w
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