What is Ball Screw
Usage: Ball screw is a key transmission component of lathes and VMCCs, responsible for converting rotational motion into linear motion, which directly affects the positioning accuracy and operational stability of the equipment.
Material: High-strength alloy material that needs to withstand high loads and frequent friction.
Geometric characteristics: The spiral raceway structure is complex, and the accuracy of the pitch and lead is extremely high (P5 level needs to be controlled at the micron level error).
Common risks: insufficient accuracy leads to equipment stuttering/positioning deviation; processing deformation causes waste; Improper cooling accelerates tool wear; Chip buildup affects machining quality.
Ball Screw Whirling Core Pain Point
There are three major bottlenecks in traditional ball screw processing equipment: (1) insufficient precision (only up to P7 level) to meet the needs of high-end machine tools; (2) The processing length is limited (≤2000mm), making it difficult to cover long-stroke equipment; (3) Slow service response (more than 72 hours), delaying production orders. These issues directly lead to high scrap rates, higher costs, and decreased customer satisfaction.
Ball Screw Whirling Process
Blank → cyclone milling milling machining→ cooling→ detection → chipping
Key points of the sub-link
- Blank Processing: Forged/cast blanks are selected to ensure uniform material density and reduce the risk of subsequent deformation.
- Cyclone milling and milling processing: adopt a rear inclined guide rail layout (to improve rigidity), and link with the linear movement of the Z axis through the C-axis (spindle) rotation (0-15rpm) to quickly remove excess material. The C-axis is driven by Siemens servo motors, decelerated by planetary gearheads, and controlled by a Renishaw encoder for closed-loop control to ensure precision of movement. The X-axis (feeder) is driven by a servo motor, decelerated by a right-angle planetary reducer, and cooperated with the Spanish Fage grating ruler to achieve micron-level feeding; The cyclone cutterhead is driven by a Siemens spindle motor, the speed is adjustable (set by the system program), the spiral angle is manually adjusted and the spiral raceway is accurately machined through encoder feedback.
- Cooling: Support air/water cooling dual modes, customers can choose according to the material (such as alloy/stainless steel), effectively reducing tool wear and workpiece deformation.
- Inspection: Integrate Renishaw rotary encoders (C-axis) and Spanish Fage grating rulers (X/Z axes) to monitor machining parameters in real time and ensure P5 level accuracy.
- Chip discharge: The chain plate conveyor automatically sends chips to the chip collection box to avoid accumulation affecting processing.
SG402 Ball Screw Whirling Machine
Ball screw whirling machines are indispensable in sectors demanding supreme mechanical precision. Aerospace, automotive, and robotics industries rely on these machines for components that require exact specifications. The precision of ball screws ensures the reliability and efficiency of essential machinery in these fields.
Ball Screw Whirling Earnings Data
| Indicator | SG402 Performance | Traditional Equipment Performance | Improvement Range |
|---|---|---|---|
| Machining Accuracy | Grade P5 (Italian/German materials) | Grade P7 | ↑2 Grades |
| Effective Machining Length | 3000mm | ≤2000mm | ↑50% |
| Scrap Rate | ≤5% | ≥15% | ↓67% |
| Production Efficiency | 700 pcs/month | 500 pcs/month | ↑30% |
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