How presses monitor pressure displacement
1. Oil seals are very important parts in the assembly process. Their failure or abnormal use will lead to high maintenance costs, immeasurable downtime, and most importantly, will reduce customers' confidence in product quality.
The cause of the problem: Usually, the equipment accuracy problem and the tooling design are defective during the installation process.
How to monitor this problem: F-S monitor curve + import evaluation window.
Solution: Adjust the device precision. Use the correct tooling. The press-fitting process is evaluated by monitoring the whole process and setting an evaluation window.
2. After the ring gear is pressed in, the binding force is insufficient, there is a risk of the ring gear falling off in the later stage, and the ABS will fail.
The cause of the problem: the dimensional tolerance of the fit (the ring gear itself is thin). After the ring gear is matched, more force is applied to the ring gear, causing the ring gear to be overstressed.
How to monitor this problem: Monitor the magnitude of the inflection point force.
Solution: Control the tolerance size or use hot pressing. Limit final stopping force.
3. The valve seat of the cylinder head cannot be press-fitted to the end. After running for a period of time, the valve seat falls, and the valve clearance becomes empty. Seriously, the tappet may be tilted, and the valve will burn out and leak.
The cause of the problem: the material is cut and pressed, and the positioning surface causes the 0.02mm gap to be out of tolerance and scrapped. The coaxiality of the upper and lower indenters is poor. The hole or valve seat size is out of tolerance, etc.
How to monitor this problem: F-S monitor curve + import evaluation window + inflection point evaluation window.
Solution: Adjust the device precision. Use the correct tooling.
By analyzing the failures that often occur in the press-fitting and assembling process of the above three typical parts of the press, it shows how the WORLD Press Machine presses monitor and timely detect unqualified products in the production process, so as to ensure the qualified rate of products and eliminate the inflow of unqualified products. Risk of quality problems after the market.
For assembly occasions with high press-fitting requirements, it is more suitable to use the whole set of press-fitting system with stable pressure and accurate displacement of WORLD Press Machine. Compared with the traditional integrated system of PLC+electric actuator+pressure displacement sensor, the whole press fitting system has a faster response speed and higher control precision; more accurate pressing process data can be collected, and the The abnormality is accurately evaluated, and the response is fast in the case where we need precise control of force or displacement, in line with the specified control requirements.