A well-known domestic water pump manufacturer hopes to quickly obtain the appearance data of the original pump cover through a three-dimensional scanner, carry out the secondary design of the pump cover, accelerate the development of new products, and improve production efficiency.

Three-dimensional scanning scene of the pump cover

Practical problems

1. The surface curvature of the pump cover changes greatly, the shape is complex, and the groove is variable, resulting in incomplete three-dimensional data obtained, and the secondary design of the pump cover cannot be carried out.

2. The traditional measurement methods (such as inspection tools, fixtures, three-coordinates, etc.) are very cumbersome and time-consuming, and cannot accurately and quickly measure the pump cover.

Three-dimensional scanning site of pump cover

Holon solutions

The pump cover is an integral part of the pump, and it works together with the pump body and other parts assembly. It is a part of the cover body, which is mainly connected with other parts, and plays a role of supporting and sealing fastening. Ensure that the oil pump works normally and does not leak oil or gear teeth. The pump cover is made of castings. The contact end surface of the pump cover and the pump body must have higher accuracy requirements. It is necessary to scan the three-dimensional data of the pump cover and perform secondary design.

1. Preliminary preparations

Spray developer: improve the contrast of the background color on the surface of the sample and obtain better scan data.

Paste the mark point: make the acquired data be positioned and spliced in the scanning software.

2. Three-dimensional scanning

The three-dimensional scanner HL-3DS+ has a fast scanning speed, and it only takes 15 minutes to obtain the three-dimensional data of the pump cover with high data accuracy. The three-dimensional scanner HL-3DS+ uses extrapolation multi-frequency phase shift grating technology, code point calibration technology and automatic splicing technology. Import the scan data of the pump cover into Geomagic for processing, and import the processed data into mainstream design software such as Pro/E and UG to perform the reverse design of the pump cover. Speed up the development of new products and improve the production efficiency of enterprises.

Three-dimensional scanning STL diagram of pump cover

Three-dimensional scanning STL diagram of pump cover