Direct drive nut turning device
A technology of rotating device and nut, applied in the field of machine tools, can solve the problems of insufficient precision and rigidity of the transmission chain, and achieve the effect of improving dynamic performance and simplifying the structure of machine tools
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[0013] figure 1 , figure 2 As shown, the screw 2 of the present invention passes through the hollow torque motor 12, the rotating screw nut 3 is rigidly coupled to the screw 2, the bearing 9 is mounted on the rotary bushing 11, and the rotary bushing 11 and the rotor of the hollow torque motor 12 are fixed Connection, the bearing 9 is used to bear the axial load to ensure the accuracy of the axial movement, the connecting body 7 is connected with the rotary sleeve 11 through the inner hexagon screw 8, and the inner ring of the bearing 9 is fixed; the rotating nut 3 on the screw 2 passes through the inner ring The hexagon screw 4 is connected with the connecting body 7; the connecting flange 6 is installed on the outer ring of the two-way thrust ball bearing 9, and is connected with the bearing end cover 10 and the shell of the hollow shaft torque motor 12 through the inner hexagon screw 13, and is connected to the bearing 9. The outer ring is fixed; the socket head cap screw...
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