High‑speed railway sleepers not only support the rails, maintain the rails’ position, but also transfer the enormous pressure transmitted from the rails to the track bed. For this reason, they need to possess a certain degree of flexibility and elasticity. Their dimensions must be properly controlled so that they can deform appropriately to absorb pressure. Strict quality control should be implemented over manufacturing materials and the production process. A 3D scanner is used to scan the sleepers to acquire data. Inspection and analysis are then carried out to identify defects, so that corresponding adjustments and remedial measures can be adopted.

高铁轨枕扫描现场图

Practical problems

Scanned samples are heavy and bulky with abundant fine surface details, which calls for high‑accuracy measurement. The scanned data needs to be inspected and analyzed.

For large‑sized workpieces, traditional measurement methods are time‑consuming and labor‑intensive, and the resulting measurement data suffers from low precision. It is impossible to obtain reliable solutions through data comparison and analysis.

Co3d solution

After reviewing the customer‑scanned sample parts and requirements, our professional team held discussions and proposed a suitable solution. Our HL‑Scan 3D scanning system was adopted. This device can rapidly perform 3D inspection for workpieces of various sizes. It does not require sticker targets; users can scan immediately after picking it up. The handheld unit delivers easy operation and fast scanning, with real‑time visualized data displayed on a computer. It can also work with robots for scanning to reduce manual operations, achieving higher scanning speed, greater precision and improved stability.

The HL‑Scan 3D scanning system performs comprehensive scanning on workpieces to acquire data within a short period with high precision. The acquired data is imported into 3D inspection software for comparative analysis to generate an inspection and analysis report. Customers can directly and clearly identify existing problems of inspected products from the report. Fine details are also captured well through scanning, and a complete data report is provided.

STL data diagram of high‑speed railway sleepers