s a core carrier component of the three-electric system, the drive motor housing of new energy vehicles is mostly an aluminum alloy die-cast structure. It integrates cooling water channels, numerous blind holes, intersecting cross holes and threaded holes. After CNC machining, aluminum chips, cutting oil, die-casting release agent and burrs around hole openings tend to remain. Tiny impurities may easily cause blockage of water channels, bearing wear and seal failure, which directly impair motor heat dissipation, insulation safety and service life. Automakers generally adopt stringent cleanliness standards such as ISO16232 and VDA19. Conventional spraying and manual cleaning methods cannot stably meet such requirements. The Buck CNC high-pressure cleaning machine is an integrated precision cleaning equipment developed to tackle these pain points.

The machine adopts a 3/5-axis CNC servo linkage structure, equipped with numerically controlled rotating fixtures and retractable rotating water knives. Wear-resistant gemstone nozzles support multiple spraying modes including direct injection, 45° angled injection and 90° side injection. The maximum pressure can reach 50 MPa with frequency conversion adjustment. Pressure can be flexibly set according to the thin-wall characteristics of aluminum housings. The water jet can precisely access cooling channels, cross holes, blind holes and thread roots to remove internal burrs and flush hidden aluminum chips. Without scratching the workpiece or deforming the housing, it strips surface cutting oil and release agent simultaneously. High-pressure deburring and cleaning can be finished in one go, eliminating the separate deburring process and secondary pollution caused by workpiece transfer.

The closed single-chamber integrated design integrates fixed-point high-pressure cleaning, pure water rinsing, multi-stage filtration circulation, oil-water separation and hot-air drying. Once loaded, workpieces go through the whole process within one machine and come out dry. The water treatment system is fitted with magnetic chip removal units, vortex sedimentation and precision filter elements for three-stage filtration. The recycling rate of cleaning water can hit 95%. Cutting oil and aluminum slag are separated automatically to save water and reduce operation and maintenance costs. The 10-inch touch industrial control system can store hundreds of sets of product process programs. For different types of motor housings, users only need to replace fixtures and call programs with one click to achieve quick model changeover, suitable for mixed production of multiple variants. Meanwhile, it supports MES production line connection and remote maintenance, compatible with automatic production lines and robotic loading/unloading retrofitting.

The machine is equipped with a fully enclosed sound insulation cabin, pressure overload protection and safety interlock emergency stop devices. Its water circuit adopts anti-corrosion aluminum alloy, suitable for dust-free workshops of new energy parts. The whole machine has complete safety certifications. Compared with ordinary cleaning equipment, it solves the cleaning dead corner problem of cooling water channels and deep cross holes. It features stable cleaning cycle and high consistency of cleanliness, effectively reducing rework rate and customer complaints caused by unqualified cleanliness. It is widely used for three-electric die-cast parts such as NEV motor housings, electric control housings and reducer housings. It serves as mainstream intelligent precision cleaning equipment for the machining lines of new energy electric drive parts, helping component manufacturers steadily meet strict delivery requirements of leading new energy vehicle manufacturers.