Sandwich type piezoelectric transducer automatic assembly machine

Abstract

The invention discloses a sandwich type piezoelectric transducer automatic assembly machine. A push plate, a pressure plate, a support plate are sleeved on two vertical columns; wherein, the push plate axially slide along the vertical columns through a first copper bush; the pressure plate is fixed on the two vertical columns by a first screw nut to bear the axial pretightening force applied on the sandwich type piezoelectric transducer by a fuel tank; the support plate is fixed on the two columns by a second screw nut to install a first hydraulic motor; a second hydraulic motor is fixed on the push plate by a fourth screw nail, a vertical plate and a fifth screw nail; a jaw vice is fixed on the push plate by a bolt; the push plate axially slide along a guiding shaft through a second copper bush; the guiding shaft is mounted on a base by a screw thread; the first hydraulic motor drives a third screw nut of the sandwich type piezoelectric transducer to rotate by a first coupling and a dedicated sleeve, so as to generate axial pressure and press a piezoelectric ceramics tightly. In the invention, two hydraulic motors are adopted, therefore, the assembly precision and the assembly efficiency are high, the assembly operations is safe, and the assembly automation of the sandwich type piezoelectric transducer is realized.

Description

technical field [0001] The invention relates to the field of ultrasonic waves, in particular to an automatic assembly machine for sandwich piezoelectric transducers. Background technique [0002] Figure: With the rapid development of science and technology, intelligent ultrasonic equipment such as ultrasonic welding machines, ultrasonic cleaning machines, and ultrasonic processing machines have been more and more widely used, and the annual output is rapidly increasing at a rate of 15-20%. The sandwich piezoelectric transducer is the core device of intelligent ultrasonic equipment, and it is a high-efficiency, high-power electroacoustic conversion device. The sandwich piezoelectric transducer integrates the piezoelectric effect and the inverse piezoelectric effect. The assembly process of the sandwich piezoelectric transducer is the process of realizing the piezoelectric effect. The use process of the sandwich piezoelectric transducer It is the process of realizing the inve...

AI Technical Summary

Problems solved by technology

[0007] (4) The sandwich piezoelectric transducer cannot be loosened when it is working;

The sandwich piezoelectric transducer has no clamping mechanism in the radial direction, so that the piezoelectric transducer will move in the radial direction (horizontal direction) during the assembly process, which will easily lead to the scrapping of the sandwich piezoelectric transducer

The nut tightening mechanism of the piezoelectric transducer adopts a hydraulic torque wrench. During use, a column needs to be used to block the hydraulic torque wrench, and a counter torque is applied to the hydraulic torque wrench in the circumferential direction. Transducer nuts apply torque, increasing work time and sometimes causing operator injuries due to operator inattention

In the process of use, the conversion efficiency of the sandwich piezoelectric transducer is low, it is easy to generate heat, the ceramic sheet is easily broken, and the sandwich piezoelectric transducer is easy to loosen. The sandwich piezoelectric transducer and the ultrasonic generator Difficult to match and other problems, the production and application units of sandwich piezoelectric transducers urgently need to solve the above problems

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