Spindle is the most important part of #MillingMachine, which is used to install the tool and drive the tool to rotate.
The picture shows the X6132 milling machine spindle component structure. Front support with tapered roller bearings 6, to withstand radial force and left axial force; intermediate support tapered roller bearing 4, to withstand the radial force and the right axial force; after the support of a single deep groove ball bearing 2, only to withstand radial force. The accuracy of the spindle rotation accuracy is mainly from the front bearing and intermediate support to ensure that the support after only supporting the role of support.
When the spindle rotation accuracy due to bearing wear and reduce the need to adjust the spindle bearings.When adjusting, remove the cantilever and remove the bed cover, loosen the locking screw 3 on the nut 11, catch the axial groove of the nut 11 with a special hook wrench, and then use a short iron bar through the spindle front And then move the spindle so that the spindle moves to the left, and is pushed forward by the shoulder of the front end of the main shaft, before the main shaft is moved to the right, The bearing inner ring moves together to the left, thereby eliminating the clearance of the front support 6. After adjustment, you must tighten the locking screw 3, cover the cover and restore the cantilever position. The flywheel 9 is fastened to the large gear on the spindle by means of screws and locating pins, which use the inertia during high-speed operation to mitigate the impact vibrations caused by intermittent cutting of the milling cutter teeth during milling.
When the spindle rotation accuracy due to bearing wear and reduce the need to adjust the spindle bearings.When adjusting, remove the cantilever and remove the bed cover, loosen the locking screw 3 on the nut 11, catch the axial groove of the nut 11 with a special hook wrench, and then use a short iron bar through the spindle front And then move the spindle so that the spindle moves to the left, and is pushed forward by the shoulder of the front end of the main shaft, before the main shaft is moved to the right, The bearing inner ring moves together to the left, thereby eliminating the clearance of the front support 6. After adjustment, you must tighten the locking screw 3, cover the cover and restore the cantilever position. The flywheel 9 is fastened to the large gear on the spindle by means of screws and locating pins, which use the inertia during high-speed operation to mitigate the impact vibrations caused by intermittent cutting of the milling cutter teeth during milling.
Milling machine spindle is a hollow shaft, the distal end has a precision cone ISO50 as a positioning tool; cut end surface has radial slots, for transmitting torque, radial end faces of the key slot 8 is fixed with screws. The cone hole is used for the centering of the tool and the mandrel of the tool. As the ISO50 taper can not be self-locking, need to use the rod from the spindle through the center through the hole through the tool, the tool spindle tightened in the cone hole. The end key 8 cooperates with the radial groove of the milling cutter to transmit the torque. The taper hole at the front end of the spindle is used to mount the arbor or end mill with a hollow bore for tensioning the arbor or end mill through the lever. Install the hexagon head at the left end of the lever so that the right end of the lever is screwed into the screw hole of the tool taper shank and then with the locking nut. The boom extension can be supported in the sliding bearing of the cantilever frame. Milling cutter installed in the arbor on the axial position, can be adjusted with different thickness of the adjustment sleeve.
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