High-low cable branch box production drilling equipment
By installing a powerful spring and internal pulley system in the drilling equipment to keep the spindle constantly clamped, the problem of positional instability caused by spindle wear is solved, achieving high-precision drilling and improving equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TAIXING HENGYUAN TRANSFORMER CO LTD
- Filing Date
- 2026-06-16
- Publication Date
- 2026-07-17
AI Technical Summary
When machining cable branch box housing plates on a drilling machine, wear between the spindle and spindle sleeve leads to an increase in the mating clearance, resulting in unstable drill bit position and reduced drilling accuracy.
The spindle is constantly clamped by a powerful spring and an inner pulley system. The spring force pushes the inner slide bar and inner pulley to fit tightly against the spindle, automatically adapting to wear changes. Different clamping forces are applied at different speeds to prevent radial runout and wobbling.
It significantly improves the drilling accuracy of the drill bit on the plate, extends the service life of the spindle and related components, and improves the stability and reliability of the drilling system.
Smart Images

Figure CN122400618A_ABST