Processing technology for fixing nut of battery cover of new energy automobile

• Main Authors: ZHANG BING, CHENG XIAOZHONG, YANG TONGJU, FANG CHAO, WANG GAOLIN
• Format: Patent
• Language: Chinese; English
• Published: 10.12.2021
• Subjects: BLASTING; COMBINED OPERATIONS; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MACHINE TOOLS; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; THERMAL INSULATION IN GENERAL; TRANSPORTING; UNIVERSAL MACHINE TOOLS; WEAPONS

The invention discloses a processing technology for a fixing nut of a battery cover of a new energy automobile. The processing technology comprises the following steps: 1, material forming; 2, processing with a numerical control machine tool; 3, vibration polishing; 4, secondary processing; 5, polishing again; 6, performing FQC detection; 7, plating a protective layer; 8, IQC sampling inspection; 9, fully inspecting the appearance; and 10, packaging and shipping. According to the technology, a CNC processing scheme in the prior art is changed into a common automatic lathe decomposition procedure processing scheme, the appearance geometric dimension, the splayed patterns of the outer diameter and the internal threads of a product are processed through an automatic lathe in the first procedure, the hole diameter of internal threads is finely processed through the automatic lathe in the second procedure, burrs on the cut-off portion are removed, and it is guaranteed that threaded holes meet the requirements of d