What is External Thread
The plug gauge is a precision measuring tool, the core is used to detect whether the size/accuracy of the internal thread and internal hole meets the standard, and is widely used in the production of auto parts, mechanical assembly, and quality inspection. Common materials are high-speed steel, tool steel, and superalloys. Geometric features include complex thread sections (triangle/trapezoidal), strict helical elevation angle requirements; Common risks: machining errors lead to detection failure, multiple clamping deformation, and substandard cooling hole quality.
External Thread Grinding Core Pain Point
Traditional thread processing faces three major bottlenecks: (1) multiple clamping leads to cumulative errors, and the scrap rate is as high as 5%; (2) It takes a long time to manually adjust the spiral lift angle (more than 30 minutes per batch), which affects the delivery cycle; (3) Residual stress is easy to occur during grinding of difficult-to-machine materials such as superalloys, resulting in deformation of parts; (4) The grinding wheel correction depends on manual labor, and the accuracy is unstable.
External Thread Grinding Process
Blank (forging/casting), →rough grinding (removing allowance), → semi-fine grinding (preliminary forming), → fine grinding (control accuracy), →automatic correction of grinding wheels→ quality inspection→ finished products.
Key points of the sub-link
- Thread raceway grinding: GS300 adopts C-Z axis linkage, the grinding wheel feeds along the workpiece axis while the workpiece rotates synchronously, and the fine grinding feed ≤ 0.002mm, ensuring the precise shape of the thread section (triangle/trapezoidal etc.
- Automatic helical angle adjustment: The CNC A-axis automatically adjusts the grinding helical angle (range ± 25°), with an error ≤± 0.01°, suitable for multi-head thread processing.
- Grinding wheel correction: Built-in automatic correction system, trimming the spindle speed up to 10000rpm, real-time correction of the grinding wheel shape to ensure grinding accuracy.
- Quality inspection: Heidenhain grating feeds back position information in real time, and closed-loop control machining tolerance (within ±0.005mm).
GS300 CNC External Thread Grinding Machine
GS300 CNC external thread grinder is an intelligent high-precision equipment for grinding screw, worm, plug gauge and other thread parts, featuring multi-process one clamping, automatic spiral angle adjustment and stable high-precision machining.
External Thread Grinding Earnings Data
| Indicator | Traditional Equipment | GS300 | Improvement Range |
|---|---|---|---|
| Surface Roughness Ra | ≥0.8μm | ≤0.32μm | 60% Reduction |
| Scrap Rate | 5% | ≤1% | 40% Reduction |
| Production Efficiency | 10 pcs/hour | 13 pcs/hour | 30% Increase |
| Clamping Time | 15 mins/pc | 5 mins/pc | 67% Reduction |
| Grinding Wheel Life | 500 pcs | 750 pcs | 50% Extension |
Contact us for further consultation on cooperation details or customized solutions. We look forward to partnering with you to create mutual value!