Industrial robot joints, new energy vehicle drive motors, and high-end CNC machine tool spindles - these high-speed rotating devices are as sensitive to motor vibration as "seismographs". Even a 0.1-millimeter deviation of a part can cause the motor to turn into a "vibration table" at a speed of tens of thousands of revolutions per minute, leading to a decline in equipment accuracy, excessive noise, and even a halving of its lifespan. ZHONG CHUAN HARDWARE 'newly launched Metal Stamping Parts Motor is rewriting the game with a disruptive process: Through precision metal stamping technology, the motor vibration in high-speed application scenarios is reduced by 40%, injecting a "silent gene" into the precision manufacturing industry.
The leap from "experience refinement" to "micron-level control"
The traditional stamping of motor rotors relies on manual adjustment of molds, and the dimensional fluctuations of parts often reach ±0.05 millimeters. When the motor speed exceeds 10,000 revolutions per minute, this error will be magnified like the "butterfly effect" - the uneven air gap between the rotor and the stator causes fluctuations in magnetic pull force, which eventually manifests as severe vibration. "In the past, we were like 'tuning the piano with our eyes closed', relying entirely on the master's touch." " Mr. Wang, the R&D director of ZHONG CHUAN, recalled, "Now our intelligent stamping line can collect 200 sets of pressure data in real time and lock the dimensional accuracy within ±0.01 millimeters, which is equivalent to installing 'shock-absorbing springs' on high-speed motors."
This breakthrough stems from two core technologies
Dynamic compensation stamping process: A laser rangefinder is integrated on a 1200-ton press, scanning the surface of the part 3,000 times per second to automatically correct the micro-deformation of the die, ensuring that the thickness fluctuation of each stamped part does not exceed 1/5 of a human hair.
Magnetic circuit optimization design: Through simulation software, 100,000 combinations of air gaps were simulated, and the "asymmetric trapezoidal groove" structure was ultimately determined to make the distribution of magnetic field lines more uniform and weaken the vibration energy from the source.
Laboratory comparative tests show that the motor equipped with traditional stamping parts has a vibration acceleration of 8.5m/s² at 12,000 RPM, while ZHONG CHUAN's metal stamping parts motor only has 5.1m/s² - a quiet experience equivalent to turning a "tractor" into an "electric vehicle".
This "vibration damping wonder" has been implemented in multiple high-end scenarios around the world
Medical equipment: After a certain international CT machine manufacturer adopted it, the motor noise when the scanning bed moved dropped from 68 decibels to 42 decibels, significantly reducing the anxiety of patients during examinations.
Semiconductor manufacturing: A certain photolithography machine enterprise in Shanghai reported that after replacing the stamping parts, the vibration error of the motor-driven wafer table rotation was reduced from ±3 microns to ±0.8 microns, and the yield rate increased by 12%.
New energy vehicles: The drive motor stamping rotor developed for a leading automaker has a vibration level of only 60% of the industry average during a continuous high-speed test at 20,000 RPM, helping to increase the vehicle's range by 3%.
We have even received inquiries from piano manufacturers. Wang Gong smiled and said, "They want to use our technology to make the mechanical arm that automatically plays the piano more 'gentle' - this precisely shows that the control of vibration has no end."
Let every rotating part become a work of art
For the ZHONG CHUAN team, the ambition of Metal Stamping Parts Motor goes beyond "vibration reduction". They are developing "self-sensing stamping parts", embedding micro-sensors inside the parts to monitor parameters such as temperature and stress in real time. In the future, motors may have "touch" just like humans. General Manager Chen of the company envisions, "When abnormal vibrations are detected in the stamping parts, the operation strategy can be proactively adjusted to nip faults in the bud."
This concept of "making parts intelligent" is driving ZHONG CHUAN's transformation into a system solution provider. They establish digital twin models for each batch of stamping parts, and customers can view the full life cycle data of the parts from raw materials to finished products through a mobile phone APP. Twenty years later, when this stamping part is recycled after fulfilling its mission, its "electronic ID card" can still tell downstream enterprises that it has precisely rotated 100 million times in a medical device that has saved countless lives. Mr. Chen said.
At present, ZHONG CHUAN has built three intelligent metal stamping production lines in China, with an annual production capacity of 5 million pieces. The products are exported to 15 countries such as Germany and Japan. With the rise of emerging fields such as humanoid robots and low-altitude aircraft, this "Chinese core" stamping motor is enabling more high-speed rotating scenarios to bid farewell to the "trembling era".
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