CNC Worm Grinding Solution

What is Worm Grinding

Purpose: The worm is the core component of the transmission system, which is used for medium-load precision transmission links such as machine tool feed/indexing, packaging equipment slitting, textile machinery winding, and synchronous drive of printing equipment.
Material/geometric characteristics: Commonly used materials are 45 steel, alloy steel (such as 40Cr); The structure is spiral toothed, which needs to meet the precision tolerance (lead error ≤0.01mm, tooth shape error ≤0.005mm); the size range covers modulus 1π~12π, metric 1~24mm.
Common risks: traditional processes are prone to deformation (caused by thermal stress), accuracy exceedance (no closed-loop control), surface roughness not up to standard (Ra>0.32μm); Traditional equipment cannot adapt to multiple types of worm quick switching.

Worm Grinding Core Pain Point

Pain point 1: Insufficient accuracy

• Efficiency impact: 20% longer rework cycle
• Cost impact: increase the rework cost by 1500 yuan/piece
• Quality impact: up to 12% scrap rate

Pain point 2: low processing efficiency

• Efficiency impact: less than 50 pieces per shift
• Cost impact: Labor costs increase by 500 yuan/day
• Quality impact: 10% order delay rate

Pain point 3: High maintenance cost

• Efficiency impact: 100 hours of downtime per year
• Cost impact: maintenance costs exceed 20,000 yuan/year
• Quality Impact: 5% accuracy fluctuation due to equipment aging

Worm Grinding Process

Complete processing link: blank preparation→ rough grinding→ fine grinding→ grinding wheel trimming→ quality inspection
CGK-90S core acts on coarse grinding and fine grinding links:

1. Blank: Worm billet after quenching and tempering
2. Rough grinding: CGK-90S quickly removes the allowance and preliminarily forms
3. Fine Grinding: CGK-90S fully closed-loop control achieves high-precision tooth shape
4. Trimming: Automatically compensates for grinding wheel wear and maintains stable accuracy
5. Testing: The three-dimensional measuring instrument verifies that the accuracy is up to standard

① Rough Grinding Stage

• Specific Method: Use a coarse diamond grinding wheel to grind the worm gear profile, removing 70% of the stock
• Parameter Range: Speed 1500-2000 rpm, Feed 0.1-0.2 mm/r, Depth of Cut 0.05-0.1 mm
• Risk Control: Coolant temperature reduction to prevent workpiece deformation; Real-time monitoring of grinding wheel wear
• Core Equipment: CGK-90S 8-axis CNC worm grinding machine
  ② Fine Grinding Stage
• Specific Method: Fine grinding of tooth profile using precision grinding wheels to ensure accuracy
• Parameter Range: Speed 2500-3000 rpm, Feed 0.05-0.1 mm/r, Depth of Cut 0.02-0.05 mm
• Risk control: Full closed-loop linear encoder inspection, error ≤0.005mm
• Core equipment: CGK-90S + linear encoder inspection system
  ③ Grinding wheel dressing stage
• Specific method: Specialized software controls diamond roller dressing of grinding wheel
• Parameter range: Dressing speed 50-100mm/min, compensation amount 0.01mm
• Risk Control: Automatic wear compensation prevents accuracy drift
• Core Equipment: CGK-90S grinding wheel dressing module
  ④ Quality Inspection Process
• Specific Method: 3D measuring instrument inspects tooth profile, lead, and surface roughness
• Parameter Range: Inspection accuracy ≤0.001mm
• Risk Control: Automatic marking of non-conforming parts
• Core Equipment: Coordinate measuring machine

Worm Grinding Earnings Data

Indicator	Traditional Equipment	CGK-90S	Improvement Range
Machining Accuracy	GB Grade 5	GB Grade 4	↑1 Grade
Efficiency	40 pcs/shift	52 pcs/shift	↑30%
Rejection Rate	12%	3%	↓9%
Maintenance Cost	¥20,000/year	¥16,000/year	↓20%

Contact us for further consultation on cooperation details or customized solutions. We look forward to partnering with you to create mutual value!