Pre-tightening structure of main shaft with rectangular attached cutting head
A cutting head and spindle technology, which is applied in metal processing equipment, metal processing machinery parts, driving devices, etc., can solve the problems of affecting the accuracy of right-angle cutting heads, the large diameter jump of the end face of the spindle, and affecting the accuracy of the spindle, so as to avoid uneven loading , Reduce the accumulation of errors and improve the effect of machining accuracy
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[0009] Below the present invention will be further described in conjunction with the embodiment in the accompanying drawing:
[0010] like figure 1 As shown, it includes the main shaft 1, the first flange cover 2, the labyrinth seal ring 3, the labyrinth seal ring 4, the angular contact bearing 5, the first spacer ring 6, the second spacer ring 7, the bearing seat 8, and the third spacer ring 9 , bevel gear 10, shaft sleeve 11, lock nut 12, box body 13, fourth spacer 14, fifth spacer 15, deep groove ball bearing 16, second flange cover 17 and third flange cover 18, etc. .
[0011] In the present invention, the first bearing assembly composed of four angular contact bearings 5, the first spacer ring 6 and the second spacer ring 7 is installed in the bearing seat 8, and the bearing seat 8 is fastened to the box body 13 with screws. The first The first spacer ring 6 of the bearing assembly cooperates with the main shaft 1; the first labyrinth seal ring 3 and the second labyrint...
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