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] like figure 1 , figure 2 As shown, a forming and grinding equipment for unidirectional ultrasonic-assisted processing includes: a workpiece 2 , two clamping and fixing parts, and an ultrasonic transducer 8 . The clamping and fixing member is composed of a double-wing clamp 1 , an upper clamping plate 3 , an upper supporting leg 4 , a lower clamping plate 5 , an extension rod 6 , and a lower supporting leg 7 . The workpiece 2 is fixed by the front and rear clamping and fixing parts, and the two ends are respectively close to the two double-winged clamps 1. The two ends of the extension rod 6 are respectively connected with the horn of the ultrasonic transducer 8 and one of the double-winged clamps through double-ended studs. Fixture 1 is connected.
[0041] image 3 It is a schematic structural diagram of the ultrasonic transducer 8 of the present invention, refer to image 3 As shown, the ultrasonic transducer 8 uses a sandwich structure, and uses pre-tightening bo...
Embodiment 2
[0049] Example 2 Selection of clamping point position
[0050] Under the condition of 20 KHz, firstly use Catia software to build a three-dimensional model of the ultrasonic-assisted processing forming grinding equipment, and then import the modal analysis module of Ansysworkbench software to build a three-dimensional model that is consistent with the actual material properties and size, and then based on The finite element method is used to analyze the vibration characteristics of the tangential vibration ultrasonic vibration platform under the condition of single excitation, and the influence of the geometric parameters of the platform and the workpiece on the vibration characteristics is studied, and then the parameters under the condition of the maximum amplitude in the central area of the platform are selected as the platform. parameter, the parameter is length lx=190 mm, width ly=90 mm. The vibration characteristics of the tangential vibration ultrasonic vibration plat...
Embodiment 3
[0052] A method for operating a forming grinding equipment based on ultrasonic-assisted machining, the steps are as follows:
[0053] When working, start the ultrasonic sound generator, 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 thickness direction of the piezoelectric ceramic ( 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 clamp 1, and the double-wing gradual structure can greatly suppress the workpiece in The ultrasonic vibration generated in the Y direction finally drives the workpiece 2 to form a unidirectional ultrasonic vibration ( Figure 10 ). The amplitude of the ultraso...
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