Cutter handle capable of realizing composition of ultrasonic vibration and low-frequency vibration

[0021] in Figure 1-4 In the illustrated embodiment, it includes three parts: a handle part 1, a low-frequency mechanical vibration part 2, and an ultrasonic vibration part 3. The tool handle part 1 is rigidly matched with the low-frequency vibration part 2 through the flange 102, screws, and ensures that the two parts are on the same axis; the low-frequency mechanical vibration part 2 is protected by the flange at the lower end of the low-frequency vibration shaft 219 and the ultrasonic part 3 The cover is matched and fastened by screws; the end of the horn 305 of the ultrasonic part 3 is provided with threads and cavities, which cooperate with a standard ER chuck to realize tool clamping. The center lines of the three parts are based on and coincide with the center of the HSK standard interface 101. The standard interface 101 of the tool holder part 1 is integrated with the flange 102. The HSK standard interface 101 at the upper end is used to connect to the spindle of the machine tool. The flange 102 at the lower end is connected to the flange of the lower cover 205 with low frequency vibration through four screws. Fasten. The mechanical vibration part 2 is a double cam mechanism. The active cam 208 and the motor 201 are connected by a sleeve coupling 204. The two are positioned by a pin 203 and a pin 207, and are fastened by two screws. The camshaft The bearing 210, the shaft sleeve 206, and the end cover 211 are matched with the bearing seat of the low frequency vibration lower cover 205. The end cover 211 is fixed to the low frequency vibration lower cover 205 and the low frequency vibration upper cover 220 by four screws. The motor 201 passes through four Screws are fixed on the motor base formed by the low-frequency vibration lower cover 205 and the low-frequency vibration upper cover 220. The outer eccentric sleeve 212 is fixed on the driving cam 208 by screws to adjust the amplitude of low-frequency vibration. The outer eccentric sleeve 212 and the driven cam 215 There is line contact between them. This structure can effectively reduce the friction between the driving wheel and the driven wheel. The driven cam 215 is matched with the bearing seat of the vibration slider 216 through the bearing 214 and the shaft sleeve 213. The vibration slider 215 interacts with low-frequency vibration. The groove in the middle of the lower cover 205 constitutes a moving range, which is fixed with the upper end of the low-frequency vibration shaft 219 by screws. The low-frequency vibration shaft 219 is positioned in the axial direction through the low-frequency vibration lower cover 205. A spring 218 is installed on the low-frequency vibration shaft 219, which is up and down. The ends are matched with the vibration slider 216 and the lower cover 205 respectively. The low frequency vibration upper cover 220 and the low frequency vibration lower cover 205 of the mechanical vibration part 2 are fixed by screws to protect the stable operation of the internal structure. The lower end of the low frequency vibration shaft 219 passes through a flange. It is fixed to the protective cover 302 of the high-frequency vibration part 3. The ultrasonic part 3 is composed of a front metal plate 303, a piezoelectric ceramic sheet 304, an horn 305, and a protective cover 302. The front metal plate 303, the piezoelectric ceramic sheet 304, and the horn 305 are arranged in sequence and carried out by a pre-tightening screw 301. It is fixed to form a piezoelectric vibration transducer to achieve ultrasonic vibration. The horn 305 is fastened to the protective cover 302 at the displacement node 306 to make the structure more compact and stable. The lower end of the horn 305 is provided with a thread 307 and a spring clamp 308. The nut 309 is combined to realize tool clamping.