A spindle box structure for cooling of a machine tool spindle
By combining a medium flow structure and air cooling in the spindle box, the problem of decreased accuracy caused by spindle temperature rise was solved, achieving efficient heat dissipation and precision control of the spindle.
CN224444609UActive Publication Date: 2026-07-03LINYI JINXING MACHINE TOOL
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Patent Information
- Application Number
- CN202521601336.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-03
- Estimated Expiration
- 2035-07-30
AI Technical Summary
Technical Problem
During operation, the machine tool spindle generates heat due to friction, which leads to temperature rise and affects machining accuracy. Existing heat insulation and heat dissipation measures are not very effective in a limited space.
Method used
Design a spindle box structure with an internal medium flow structure, including annular or spiral grooves and medium inlet and outlet, to utilize the medium for heat exchange and achieve effective heat dissipation of the spindle in conjunction with air cooling.
Benefits of technology
It effectively reduces spindle temperature, minimizes thermal deformation, and improves machining accuracy. Its simple structure and strong versatility make it suitable for various spindles.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224444609U_ABST
Abstract
The utility model discloses a main shaft box structure for lathe main shaft cooling, main shaft box body, the axle cavity on main shaft box body is connected through bearing with main shaft, the inner peripheral wall of axle cavity is equipped with medium flow structure, and the beginning of medium flow structure is communicated with at least one medium import end that is equipped with on main shaft box body, and the end is communicated with at least one medium export end that is equipped with on main shaft box body. The utility model can adopt the mode of oil cooling or water cooling, and the heat of main shaft is accelerated to radiate, and better heat dissipation effect can be played together with air cooling. The main shaft box body adopts symmetrical structure, and the structure is simple, and the commonality is strong, and the problem of uneven temperature distribution when temperature rise is solved to a certain extent, thereby reducing the thermal deformation of main shaft.
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