For the processing of special materials such as super-hard and super-brittle materials, the general processing technology has poor processing effect and low efficiency, which can not meet the requirements of machining accuracy of such materials. Rotary ultrasonic machining, which combines ultrasonic machining with tool rotation, can be used to process this kind of special material with high precision and high efficiency. In rotary ultrasonic machining, the Ultrasonic transducer is the core actuator in ultrasonic machining that converts ultrasonic electrical energy into mechanical high-frequency vibration, its working principle is that frequency electrical signal is converted into high frequency mechanical vibration by piezoelectric inverse effect, and mechanical vibration is amplified by ultrasonic horn, and the vibration is transmitted to the workpiece. When traditional Ultrasonic transducer are made, they are easily disturbed by impurities. The impedance and frequency of the products can not meet the design requirements, and the stability of the products in use is poor.

Therefore, it is necessary to provide a Ultrasonic transducer Ultrasonic transducer and a preparation method thereof, which can enhance the use stability of the product and is convenient to manufacture.

The production method of the Ultrasonic transducer comprises the following steps:

1. Surface cleaning of all parts of the Ultrasonic transducer;

2. Install the cover plate of the Ultrasonic transducer on the screw of the locking bolt of the Ultrasonic transducer and the piezoelectric vibrator of the Ultrasonic transducer on the screw of the locking bolt of the Ultrasonic transducer, the cover plate is positioned between the nut of the locking bolt and the piezoelectric vibrator to obtain a bolt mounting integral piece;

3. Tighten the locking bolt in the bolt mounting assembly to the thread hole in the rear end face of the horn of the Ultrasonic transducer to obtain the Ultrasonic transducer semi-finished product;

4. Place the Ultrasonic transducer in a constant temperature oven for constant stress relief.

The method of making the Ultrasonic transducer can prevent the interference of impurities by cleaning the surface of the various parts of the Ultrasonic transducer, to ensure that the impedance and frequency of the finished Ultrasonic transducer meet the design requirements, improve the stability of the product in use, and remove stress at constant temperature by placing the Ultrasonic transducer semi-finished product in a constant temperature furnace, it can improve the performance stability of the product, guarantee the stability and reliability of the use of the product, in addition, by adopting steps 2 and 3 to assemble the various parts of the Ultrasonic transducer, it is easy to make.

Further, in the 2-step, prior to the step of mounting a Ultrasonic transducer cover plate on a screw of a locking bolt of a Ultrasonic transducer, the step also includes:

5. A first heat-shrinkable insulating tube of the Ultrasonic transducer is sheathed on a screw of a locking bolt of the Ultrasonic transducer, and heated so that the first heat-shrinkable insulating tube is heat-shrinkable fixed on the screw, wherein, the length of the first heat shrinkable insulating tube matches the sum of the lengths of the piezoelectric oscillator and the cover plate, and the mounting position of the first heat shrinkable insulating tube matches the sum of the piezoelectric oscillator and the cover plate

The installation position of the cover plate is corresponding.

6. Further, in the 2-step, after the step of installing the Ultrasonic transducer cover plate on the screw of the locking bolt of the Ultrasonic transducer, the piezoelectric vibrator of the Ultrasonic transducer is mounted on the Ultrasonic transducer

Before locking the bolt on the screw, the steps also include:

7. A second heat-shrinkable insulating tube of the Ultrasonic transducer is sheathed on a screw of the locking bolt of the Ultrasonic transducer, and heated so that the second heat-shrinkable insulating tube is heat-shrinkable fixed on the screw, wherein, the length of the second heat shrinkable insulating tube matches the length of the piezoelectric vibrator, and the mounting position of the second heat shrinkable insulating tube corresponds to the mounting position of the piezoelectric vibrator.

Further, prior to the 1 step, steps are also included:

8. The assembly side surfaces used for contacting the cover plate on the nut of the locking bolt are preprocessed, and the assembly side surfaces are ground to make the assembly side surfaces smooth, the side face of the assembly is perpendicular to the central axis of the thread on the screw rod.

9. Further, after the 3 steps and before the 4 steps, the steps are also included:

Ten. Short-circuit the electrode plates of the piezoelectric vibrator of the Ultrasonic transducer semi-finished product.

Further, after the four steps, the steps are also included:

Eleven. Tightening the locking bolt again and applying secondary pressure to obtain the finished Ultrasonic transducer product.

Further, the four steps specifically include:

The Ultrasonic transducer were put into a constant temperature furnace to age at 90 â ° C ± 5 â ° C for 10 H-14 H, and to keep at 70 â ° C ± 5 â ° C for 2.5 h-3.5 H

Twelve. Remove the semi-finished transducer after treatment and leave it at room temperature for 85D ~ 95D.

Further, the 1 step specifically includes:

Thirteen. Ultrasonic cleaning to remove oil stains on various parts of the Ultrasonic transducer;

Fourteen. Acetone washes the contact surfaces of various parts of the Ultrasonic transducer.

Fifteen. Further, the 2 steps and 3 steps are carried out in a dust-free workshop.

The technical proposal also provides a Ultrasonic transducer that uses a Ultrasonic transducer as described above

The manufacturing method of the acoustic wave transducer is produced.

The Ultrasonic transducer can be produced by using the production method of the Ultrasonic transducer, has the technical effect of the production method of the Ultrasonic transducer, has good stability in use and is convenient to manufacture.