43results about How to "No crawling phenomenon" patented technology

The invention relates to an anti-wrapping closed hydrostatic slideway structure of a numerical control machine. The anti-wrapping closed hydrostatic slideway structure is characterized in that the lower ends of the left side and the right side of a sliding base are respectively and fixedly provided with a movable guide rail through bolts, fixed guide rails are fixed above two inner sides of a machine body, and three end faces of the movable guide rails are respectively provided with a plurality of oil cavities; and a left oil baffle plate and a right oil baffle plate are respectively arranged below two outer sides of the sliding base and used for preventing static pressure oil from leaking to the machine body. The highest rapid transverse speed of a feeding shaft of the machine is 42m / min, an anti-wrapping rectangular sliding guide rail form is adopted, guidance is carried out by using inner sides of the two guide rails so that the deflection of moving components due to the movement can be reduced and guidance performance and guide precision of the moving components are improved; a liquid static pressure guide rail form is selected in coupling surfaces of the guide rails so as to achieve the advantages of extremely small friction resistance and high transmission efficiency; the moving precision of the guide rails are kept well, and the service life of the guide rails is long; the influence of the change of an operating speed of a working platform on the oil film thickness is smaller, the working platform works stably and has no creeping phenomenon at low speed; and an oil film has a vibration-absorbing function and good vibration performance of the guide rails. The anti-wrapping closed hydrostatic slideway structure has large bearing capacity and high supporting rigidity; and high-precision feeding movement of the machine is realized.

The invention discloses a control parameter setting method of a speed regulating controller in a speed regulating device of a torque motor; a speed regulating device on which the method is based is composed of a speed regulating order generator, a speed regulating controller, a power driving module, a speed regulating executing mechanism and a speed sensor; the setting method comprises the steps of forming a parameter identifying device of the speed regulating executing mechanism; according to a phase step output response feature of the speed regulating executing mechanism, identifying an equivalent viscous damping coefficient and an equivalent inertia of the speed regulating executing mechanism, dividing the maximal output voltage of the power driving module by the maximal value of a speed regulating order, squaring the obtained quotient, multiplying by 5 times and dividing by the equivalent inertia to obtain an integral coefficient of the speed regulating controller; multiplying the equivalent inertia by the integral coefficient of the speed regulating controller and calculating a square root, multiplying by twice, and subtracting the equivalent viscous damping coefficient from the obtained product to obtain a probability distribution function (PDF) coefficient of the speed regulating controller. According to the control parameter setting method, the controlling parameter of the speed regulating controller is precisely set, and the speed of the torque motor is stably regulated within a wide range.