The high dimensional accuracy of precision motor die castings and molds can first reduce the gap during component assembly and make the parts fit more closely. The internal structure of the motor is complex, and multiple components need to be precisely docked. If there is a deviation in the size of precision motor die castings and molds, gaps will appear during assembly, affecting the stability of the overall structure. High dimensional accuracy ensures that the size of each precision motor die castings and molds strictly meets the design standards. For example, the matching of the bearing seat and the bearing can be done tightly to avoid the shaking of the components due to excessive gaps, laying the foundation for the stable operation of the motor.
This accuracy improves the concentricity between the components and makes the rotating components run more smoothly. If the dimensional accuracy of precision motor die castings and molds such as the rotor and sleeve in the motor is insufficient, the center may be offset after assembly, and eccentric vibration will be generated during operation. Precision motor die castings and molds with high dimensional accuracy can ensure that the central axis of each rotating component is consistent, reduce the centrifugal force during operation, make the motor run quieter, and reduce the wear of components caused by vibration, extending the service life of the motor.
High dimensional accuracy allows precision motor die castings and molds produced in different batches to have good interchangeability and improve assembly flexibility. In the mass production of motors, multiple identical parts are required for assembly. If the size of precision motor die castings and molds fluctuates greatly, parts of the same model may not be interchangeable, increasing the difficulty of assembly. However, precision motor die castings and molds with high dimensional accuracy have consistent sizes regardless of the production batch. There is no need to select and match them during assembly. They can be directly used, which improves assembly efficiency and provides convenience for later maintenance and replacement of parts.
For precision motor die castings and molds with complex structures, high dimensional accuracy can ensure accurate docking of various functional parts and improve the integrity of assembly. Precision motor die castings and molds in motors often contain structures such as grooves, protrusions, and holes. These parts need to be precisely matched with other parts to achieve their functions. For example, the docking of heat dissipation holes and heat sinks may cause blockage of the heat dissipation channel if the dimensional accuracy is insufficient. High dimensional accuracy ensures the accurate position and size of these structures, allowing the matching parts to be assembled smoothly and ensuring the normal functioning of the various functions of the motor.
High dimensional accuracy reduces the finishing work during assembly and reduces the reliance on manual skills. When assembling traditional low-precision precision motor die castings and molds, manual grinding and filing are often required to adjust the size so that the parts can fit together. This is not only time-consuming, but may also damage the structure of the parts due to improper operation. Precision motor die castings and molds with high dimensional accuracy do not require additional finishing and can directly meet the assembly requirements, reducing manual intervention, ensuring the stability of assembly quality and reducing labor costs.
This accuracy improves the overall sealing of the motor and reduces energy loss during operation. Some areas inside the motor need to be sealed, such as to prevent lubricant leakage or dust from entering. If the dimensional accuracy of precision motor die castings and molds is insufficient, gaps may appear on the sealing surface. Precision motor die castings and molds with high dimensional accuracy can make the sealing surface fit completely. When used with seals, they can form a reliable sealing effect, avoid increased friction caused by lubricant loss, or component failure caused by dust entering, and improve the operating efficiency of the motor.
High dimensional accuracy makes the force of the parts more uniform after assembly and enhances the structural strength of the motor. When the motor is running, each component will be subjected to a certain amount of stress. If the assembly fit is poor, the stress may be concentrated in a certain local position, causing the component to deform or break. High dimensional accuracy allows each component to contact evenly and the stress distribution is more reasonable. For example, the connection between the end cover and the base can make the bolts bear balanced force, avoid loose connection due to excessive local force, and ensure that the motor maintains structural stability during long-term high-intensity operation.
