Servo motor structural engineer
1. Motor structure design and development
• Responsible for the structural design of the permanent magnet synchronous motor (PMSM), including the 3D modeling and 2D engineering drawing output of the motor casing, front end cover/rear end cover, bearing seat, junction box and other components.
• According to the requirements of the electromagnetic solution, complete the stator core block structure design, including the selection and structural realization of the block splitting scheme, block positioning and locking methods, welding/riveting/clipping and other connection processes.
• Responsible for the detailed structural design of the motor housing (aluminum die-cast housing/extruded profile housing/steel plate welded housing), including heat dissipation rib/water channel layout, sealing structure, installation interface, etc.
• Participate in the structural design and integration scheme of reduction box/gearbox, including the integrated layout of parallel shaft/planetary reducer and motor, box structure strength check, oil seal/seal selection and lubrication scheme design.
2. Collaboration of process and manufacturing
• Responsible for formulating the manufacturing process plan for stator blocks (blocked stator core), including block punching accuracy control, block assembly fixture design, block gap control, and definition of welding or riveting process parameters.
• Liaise with suppliers and internal process teams to solve structural process issues during housing die-casting/machining and reduction gearbox gear processing/assembly.
• Lead or participate in prototype trial production and small batch trial production, and track and solve structural assembly and tolerance coordination problems during the trial production process.
3. Simulation analysis and verification
• Use finite element analysis tools (ANSYS Workbench/Abaqus/HyperMesh) to conduct structural strength, stiffness, and modal analysis on key components such as motor housings, end covers, and reduction gearbox cases.
• Conduct thermal-structural coupling analysis on the complete motor to evaluate the effectiveness of the heat dissipation solution and the impact of thermal deformation on the fit accuracy.
• Participate in the simulation analysis and optimization of motor NVH (vibration and noise), and propose vibration and noise reduction solutions from a structural perspective.
4. Technical documents and specifications
• Prepare technical documents such as motor structural design specifications, housing design standards, and stator block process standards.
• Output APQP development documents such as BOM list, DFMEA, special characteristics list, assembly work instructions, etc.
• Participate in patent writing and technical review, and track cutting-edge technology trends such as new housing materials (magnesium alloy/composite materials) and new reducers (harmonic/RV/cycloid) in the industry.
1. Educational background: Bachelor degree or above, majoring in mechanical design, manufacturing and automation, mechatronics, vehicle engineering and other related majors.
2. Experience: More than 3 years of experience in motor structure design. Applicants with experience in product development related to servo motors, industrial control motors, new energy drive motors or precision reducers are preferred.
3. Shell design ability: Familiar with aluminum alloy die-casting, gravity casting, low-pressure casting technology and mold structure, and understand the design points of extruded profile shells and steel plate welded shells.
Reduction box design capabilities: Familiar with the structural design of parallel shaft gear reducers and planetary reducers (NGW/NNW type), and understand key technologies such as tooth shape modification, bearing selection, lubrication and sealing.
Stator block experience: Experience in structural design and manufacturing process of block stator core (block stator), understanding of block gap control, stamping lamination, welding/riveting and other processes.
4. Proficient in using relevant design software;