The cover plate of the cavity filter needs to be prefabricated with many tuned screws of different lengths, which are tightened by nuts. In order to reach a wide frequency band, the screwing depth of each screw is not the same. In the early stage, manual screw and nut are worn, there are problems such as low efficiency, high labor intensity, leakage or wrong wear, and uncontrollable depth. Later, automatic prefabrication equipment appeared on the market, but there are problems such as low efficiency, bending cover plate, metal wire (screw electroplating damage) and low depth accuracy. In order to solve these problems, Sharp tool Seiko specially developed high precision cover plate prefabrication, with the following outstanding advantages.
1. High efficiency, innovative double head design, the left head pre-wear, the right end lock. Patented high speed final lock module, screw in at 1200rpm. Through the 28mm screw depth 18mm efficiency 2.5s.
2. High depth precision, each screw screw depth can be set, the servo drive mechanism drives the screw rotation, with laser height sensor closed-loop control screw depth until the set value;
3 Wire phenomenon is less, the final lock module has a flexible buffer mechanism, can adapt to a certain position error, prevent the screw stuck, screw with a small torque, electroplating will not crush.
4. The cover plate deformation is small, the lower support is sufficient, the final lock module has a buffer in the Z direction, the pressure on the cover plate is small, and the cover plate will not be bent.