In the automotive industry, servo presses have emerged as core equipment for ensuring assembly quality
and enabling intelligent manufacturing, particularly in the precision press-fitting of critical components.
Leveraging their high precision, comprehensive process monitoring capabilities, and data traceability featur
es, these machines play a pivotal role in modern automotive production. In vehicle manufacturing, the asse
mbly precision of individual components directly impacts the overall safety, reliability, and NVH (Noise, Vibr
ation, and Harshness) performance of the finished vehicle. Through closed-loop control technology, servo
presses enable the precise regulation of press-fitting force, displacement, and speed; furthermore, by gener
ating real-time force-displacement curves, they ensure that every single process step is "zero-defect." The
following are typical applications of servo presses in key automotive components:
1. **Engine Systems: Ensuring High Consistency in the Power Core**
* **Cylinder Head Press-fitting:** Controls pre-tightening force through multi-stage press-fitting programs
to prevent damage to the head gasket and ensure effective sealing.
* **Main Bearing and Connecting Rod Bearing Press-fitting:** Utilizes "force-displacement window" judgme
nt technology to prevent eccentric loading or incomplete seating.
* **Oil Seal and Crankshaft Front/Rear Oil Seal Assembly:** Precisely controls insertion force to prevent lip
deformation or the risk of oil leakage.
* **Actual Results:** After introducing servo presses, a certain engine plant saw its rate of complaints regar
ding abnormal noises drop from 3.2% to below 0.1%.
2. **Transmission and Drivetrain Systems: Ensuring Smooth Shifting and Durability**
* **Gear and Synchronizer Press-fitting:** Ensures uniform clearance within the gear ring, thereby improvin
g shifting feel.
* **Clutch Pressure Plate Assembly Press-fitting:** Controls the compression amount of the friction plate
during the pressure-holding phase to extend service life.
* **Driveshaft Universal Joint and Spline Press-fitting:** Monitors the press-fitting curve in real-time to eli
minate instances of insufficient pressure or over-pressing.
* **Advantage:** Supports "one-to-many" control, allowing a single machine to switch between multiple
product models, thereby facilitating flexible manufacturing.
3. **Chassis and Suspension Systems: Enhancing Driving Safety and Comfort**
* **Shock Absorber Piston Rod Press-fitting:** Prevents damage to the sealing ring and ensures stable dam
ping performance.
* **Control Arm Bushing Press-fitting:** Employs a floating press head design to compensate for assembly
deviations and extend the service life of the bushing. Steering Knuckle Pin and Ball Joint Press-Fitting: Force
-controlled throughout the entire process to prevent microscopic metal cracks that could lead to premature
failure.
Technical Highlight: Supports a positional accuracy of ±0.01 mm and a pressure accuracy of <1%, meeting
the requirements of the most demanding operating conditions.
4. New Energy Vehicle "Three-Electric" Systems: Tailored to Meet the Evolving Needs of Electrification
Drive Motor Bearing Press-Fitting: Micron-level control prevents damage to the bearing inner ring, thereby
safeguarding motor efficiency.
Battery Module End Plate Press-Fitting: Constant-force holding ensures the consistency of the battery cell
stack, enhancing thermal management performance.
Electronic Control Unit (ECU) IGBT Module Press-Fitting: Low-force, precision press-fitting prevents cracking
of the ceramic substrate.
Energy Efficiency: Achieves energy savings of over 77% compared to traditional hydraulic presses, contributi
ng to green manufacturing initiatives.
