Techniques › Regulation / Adjustment

TOOLS, MACHINES AND EQUIPMENT USEFUL FOR REGULATION / ADJUSTMENT OPERATIONS

The Regulation / Adjustment operations call for specific tools, distinct from those used in standard assembly, suited to handling fragile components such as the Hairspring (balance spring) and to measuring very small deviations. The Tweezers (regular, hairspring, wood, collet-fitting, hairspring-marking, or 90° tweezers) are used to grip and shape the hairspring without deforming it; the scribing point and the hairspring-cutting pliers are used respectively to mark and to adjust the active length of the blade. The Figure-of-eight calliper checks the out-of-flat and out-of-round conditions, while the riveting stake and its riveting punches are used to fix the axis onto the Balance, and the collet tool as well as the driving-in stump are used for mounting the Collet. The Balance poising bench checks the static weight of the balance before pairing, while loupes, a graduated stand and a binocular microscope ensure precise observation of the operations. The Timing machine then measures the rate and the Amplitude on an electronic bench, complementing cutters and chucks dedicated to the balance as well as brass pins used for temporarily holding the collet and the Stud (hairspring stud) in place during mounting.