The bobbin is a kind of locking device for holding the tool or workpiece, which is usually used in the drilling and milling machine and machining center. The general standard for the accuracy of the clamp is as follows:
First stage: precision: 0.01mm. Er bobbin made of bearing steel has high elasticity and service life. All Er elastic clamps are precision grinding, which is manufactured according to the precision specification of DIN 6499 in Germany. Er has 1mm elastic space. Second level: accuracy: 0.01-0.015mm. Er elastic clamp made of bearing steel has high elasticity and service life. All Er elastic clamps are precision ground, which conforms to the precision specification of DIN 6499 in Germany, and ER has 1mm elastic space.
Spring Collet is a fixing device used to fix parts to be modified. During daily maintenance, it is necessary to clean the spindle and collet cone of the machine tool before installing the cone on the spindle. After use, the main body and the bobbin shall be cleaned and rust proof to ensure the smooth operation of the next use.
Maintenance precautions:
1. before the cone of the body is installed on the main shaft, wipe the clamp cone and the machine spindle clean, and lightly hit the end face of the body with a rubber hammer or wooden hammer to ensure that it is tight, firm or tightened with a connecting rod.
2. select the corresponding sleeve to clean according to the processing needs, put it into the main body inner hole, push the sliding cap of the main body, so that the sleeve is placed in the square hole of the main body, and then the corresponding tool is clamped on the sleeve and the clamp is completed, and then it can be processed and used.
3. if tapping function is used, it is important to loosen the nut first. During processing, screw the nut tightly according to the needs of different torque sizes of tap to keep the tap from sliding.
4. when the tap is put into the tap sleeve, it is necessary to put the square handle into the square hole in the clamp to increase the torque.
5. push the sliding cap lightly, and then remove the sleeve (or replace it), and clean the rust proof, main body and bobbin after use
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