2results about How to "Large structure size" patented technology

This application relates to the field of machining technology, and discloses an ultrasonic tool holder, ultrasonic machining equipment, and machine tool. The ultrasonic tool holder includes: a tool body and a connecting sleeve. The tool body has a second end and a first end arranged opposite to each other in a front-rear direction. The first end is adapted to be connected and fitted with a spindle, and the second end has a mounting cavity for accommodating a transducer. A wireless receiving unit is provided on the outer periphery of the tool body. The connecting sleeve is connected to the second end and arranged coaxially with the tool body. An outer shell is fitted onto the outer periphery of the connecting sleeve through a bearing, wherein the inner diameter of the bearing is less than or equal to the outer diameter of the second end. Therefore, by placing the bearing between the connecting sleeve and the outer shell, the bearing does not occupy the outer periphery space of the tool body, which reduces the axial dimension of the tool body, thereby improving the rigidity of the tool body and reducing the overall axial dimension of the ultrasonic tool holder. It also increases the structural dimensions of the transducer and reduces the radial dimension of the bearing, thereby improving ultrasonic machining performance.

The invention relates to a micromechanical component for a stress sensor, having a first substrate (10) with a first substrate surface (10a), a second substrate (12) with a second substrate surface (12a) and an evaluation electronics (20) configured at and / or in the second substrate (12), wherein the first substrate (10) is fixed at the second substrate (12) by means of at least one electrical connection (22) formed by means of a metal bonding method, which is configured in an intermediate volume (14) between the first substrate surface (10a) and the second substrate surface (12a), wherein at least one electrode (16, 16a, 16b, 62) and at least one counter electrode (18a, 18b, 18c) are arranged in the intermediate volume (14), wherein the at least one electrode (16, 16a, 16b, 62) and / or the at least one counter electrode (18a, 18b, 18c) are electrically connected at the evaluation electronics (20) by means of the at least one electrical connection (22) formed by means of a metal bonding method.