Device for automatically eliminating clearances of screw drive pair
A technology of screw transmission and gap, which is applied in metal processing and other directions, can solve the problems of increasing the workload of machine tool operation and maintenance personnel, the inability to realize automatic elimination of axial gap, and inability to realize automatic compensation of wear amount, etc., and achieve a compact structure space The effect of high utilization rate, good axial rigidity and low cost
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[0010] The following descriptions are only preferred embodiments of the present invention, and therefore do not limit the protection scope of the present invention.
[0011] See figure 1 , including lead screw 1, main nut 2, screw 3, machine slide 4, adjusting bolt 5, spring 6, guide column 7, nut with bevel 8, bolt 9, lock nut 10, wedge 11 and ball 12. The main nut 2 and the beveled nut 8 are respectively connected with the lead screw 1, the main nut 2 is connected with the machine tool slide 4 through the screw 3, and the flange of the beveled nut 8 has a through hole, which can move axially along the guide column 7 (see figure 2 ). The self-locking wedge 11 is placed between the main nut 2 and the beveled nut 8 , one end of the spring 6 presses on the self-locking wedge 11 , and the other end is pressed by the adjusting bolt 5 . Have guide groove on the inclined surface of band nut 8 (see image 3 ).
[0012] When the driving motor is started, the lead screw 1 is drive...
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