One-way ultrasonic-assisted forming grinding equipment and operation method
An ultrasonic-assisted, forming grinding technology, applied in the direction of grinding workpiece supports, etc., can solve the problems of destroying ultrasonic vibration-assisted forming grinding equipment, forming grinding wheel easily interfering with horn, affecting forming grinding, etc. Good stiffness and stability, improving surface quality, preventing grinding burns
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Embodiment 1
[0040] Such as figure 1 , figure 2 As shown, a form grinding equipment for unidirectional ultrasonic-assisted processing includes: a workpiece 2 , two clamping and fixing parts, and an ultrasonic transducer 8 . Wherein, the clamping and fixing part is composed of a double-wing clamp 1, an upper splint 3, an upper leg 4, a lower splint 5, an extension rod 6, and a lower leg 7. The workpiece 2 is fixed by two front and rear clamping and fixing parts, and the two ends are respectively close to the two double-wing fixtures 1. Fixture 1 is connected.
[0041] image 3 It is the structural representation of ultrasonic transducer 8 of the present invention, with reference to image 3 As shown, the ultrasonic transducer 8 uses a sandwich structure, and the rear cover 12, the piezoelectric ceramic 11 and the horn 10 are pressed tightly by the pre-tightening bolt 13, and the front end of the piezoelectric ceramic 11 is connected to the conical ultrasonic horn 10. A double-ended st...
Embodiment 2
[0049] Embodiment 2 Selection of clamping point position
[0050] Under the condition of 20 KHz, first use Catia software to build a three-dimensional model of the forming grinding equipment for ultrasonic assisted processing, and then import the modal analysis module of Ansysworkbench software to establish a three-dimensional model consistent with the actual material properties and sizes, and then based on The finite element method analyzes the vibration characteristics of the tangential vibration ultrasonic vibration platform under the condition of single excitation, studies the influence of the geometric parameters of the platform and the workpiece on its vibration characteristics, and then selects the parameters under the condition of the maximum amplitude in the central area of the platform as the platform parameter, the parameter is length lx=190 mm, width ly=90 mm. The vibration characteristics of the tangential vibration ultrasonic vibration platform under single exc...
Embodiment 3
[0052] An operation method of form grinding equipment based on ultrasonic assisted processing, the steps are as follows:
[0053] When working, start the ultrasonic sounder, and the sinusoidal electrical signal generated by the ultrasonic power supply is input to the piezoelectric ceramic 13 through the wire. According to the piezoelectric effect, the sinusoidal electrical signal is converted into the piezoelectric ceramic in the thickness direction ( image 3 The mechanical displacement in the direction of the arrow) generates ultrasonic vibration, the amplitude is amplified by the ultrasonic horn 10, and the vibration is finally transmitted to the workpiece 2 through the extension rod 6 and the double-wing fixture 1. The double-wing gradual structure can greatly suppress the workpiece The ultrasonic vibration generated in the Y direction finally drives the workpiece 2 to form a one-way ultrasonic vibration ( Figure 10 ). By adjusting the output voltage of the ultrasonic po...
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