The manufacturing process of miniature geared motors mainly includes two categories: mechanical manufacturing processes and specialized processes for miniature geared motors. With the continuous development of new structures and production technologies for miniature geared motors, precision machinery, instruments, electronics, and automation technologies are also widely used in the manufacturing process of miniature geared motors, forming a unique miniature geared motor production technology.
Its main characteristics are:
1. Significant differences in size, production volume, and unit value of micro geared motors. The production of micro geared motors varies greatly due to the wide variety of models and sizes. For example, a stepper motor used in watches is only a few millimeters in diameter and weighs only tens of grams, while some torque motors and special-purpose rotary transformers can have diameters exceeding 1 meter and weigh over 100 kilograms. Furthermore, the process equipment and methods are drastically different. The production scale varies greatly among different types of micro geared motors. The manufacturing processes are also different, resulting in inconsistent quality. Some special-purpose micro geared motors require only a few units per year, while mass-produced civilian motors, such as tape recorder motors, washing machine motors, and low-power motors, require millions, even tens of millions, of units per year.
2. The manufacturing technology of micro geared motors involves core manufacturing, winding manufacturing, plastic part manufacturing, surface coating, insulation, and assembly. It also extensively utilizes machining, powder pressing, electronic circuitry, electrical discharge machining, welding, precision stamping, cold extrusion, and precision testing technologies. The development of specialized production equipment and the rational organization of specialized production are required. This is especially true for advanced production processes such as mold making, casting, and plastic parts manufacturing.
3. As a system component, the micro geared motor requires high reliability and dimensional accuracy, meaning a symmetrical magnetic circuit, balanced circuit, small coaxiality error between the stator and rotor, and indexing and cumulative errors of the stator and rotor laminations down to a few arcminutes. The dimensional accuracy of the fit should generally reach 1T5-1T6 level. The form and position errors of components should be small, making it suitable for highly automated processing equipment and automatic inspection systems to ensure the accuracy and consistency of component processing.
4. The continuous emergence of micro geared motors with new principles and structures necessitates continuous updates to process methods and improvements in technology. With the continuous emergence of new structures and the increasing serialization and standardization of components, it is essential to continuously explore and apply new processes, such as minimal or no cutting processes. These include powder metallurgy, fine blanking, cold extrusion, roll welding, printed circuits, and mechanized and automated processing, assembly line operations, etc.
The production process and technological process of micro geared motor manufacturing generally refer to the process from planning to product packaging. The production process generally includes: preliminary material preparation; motor inspection and acceptance; process design and comparison; formulation and issuance of technical documents; design and preparation of tools, fixtures, and molds; implementation of component processing technology; assembly and testing of components and finished products; and production management. In modern production, a single factory is typically responsible for a single product, but factories can also collaborate to standardize and specialize components, thereby improving labor productivity and reducing product costs while ensuring component quality. The production process of micro geared motors is similar to that of other products. The entire production process can be viewed as a “system,” allowing for scientific and comprehensive planning and management. It can be treated as a “production systems engineering” project, analyzed and controlled using computers to achieve optimal technical and economic results and modernize production management. The technological process is the most fundamental and important part of the production process. Specifically, the process that directly changes the shape, size, physical properties, and assembly relationships of the workpiece until it becomes a finished product is called the technological process.
The technological process of micro geared motor manufacturing can be further divided into specialized processes such as machining, stamping, casting, insulation treatment, heat treatment, molding, winding, assembly, and testing. Each technological process is further divided into several steps. The importance of the technological process lies in two aspects: firstly, it forms the basis of production organization and is the fundamental reliance for workpiece processing, directly impacting product quality, labor productivity, and equipment utilization; secondly, the technological process is also a primary basis for factory design and process routing.
Post time: Apr-17-2026