CN105033780A - Deep cavity machining system suitable for crisp and hard materials - Google Patents

Abstract

The invention discloses a deep cavity processing system suitable for hard and brittle materials, comprising an ultrasonic vibration grinding device installed on the main shaft of a machine tool, a lifting clamping device is arranged below the vibration grinding device, and the lifting clamping device is arranged on both sides An automatic external cooling device and an automatic grinding wheel dressing device are also provided respectively. The invention can overcome the disadvantages of the existing method for deep cavity processing of parts, and efficiently and accurately complete the processing work of hard and brittle material components with special shapes and deep cavities.

Description

A Deep Cavity Machining System Suitable for Hard and Brittle Materials

technical field

The invention relates to the field of precision machining, in particular to a deep cavity processing system suitable for hard and brittle materials using ultrasonic vibration processing technology and high-efficiency grinding technology.

Background technique

At present, grinding, drilling, boring, laser processing, EDM and other methods are mainly used for deep cavity processing of parts and components at home and abroad. Grinding processing technology has the characteristics of high processing precision, good surface quality, simple processing device and wide processing adaptability for deep cavity processing, but the problem of grinding wheel clogging often occurs during internal cavity grinding The disadvantages of low efficiency and high processing cost. Drilling technology is often applied to the rough machining of the inner cavity. After machining, the surface precision of the inner hole is low and the roughness is high. At the same time, due to the low rigidity of the drill bit, it is easy to cause the defects of drilling deviation and the axis of the inner cavity being skewed. Although boring can carry out semi-rough machining and finishing machining on the workpiece according to the machining accuracy requirements of the workpiece to ensure the accuracy and coaxiality of the workpiece surface, but due to the small boring allowance and the long time for tool adjustment and tool setting, there are processing problems. The disadvantage of lower efficiency. Laser processing technology has the characteristics of fast processing speed, low pollution, and high processing precision. It is widely used in the processing of various materials, but it has the disadvantages of imperfect automation control technology and high equipment costs. EDM technology corrodes materials through pulse discharge between electrodes to realize workpiece processing. It has the advantages of small workpiece deformation and low processing cost, but it cannot be used for inner cavity processing of non-metallic materials. The disadvantage of low precision.

To sum up, there are various defects in the existing deep cavity processing technology of parts, and there is an urgent need for a deep cavity processing system suitable for hard and brittle materials to meet the needs of the actual production and processing industry.

Contents of the invention

The purpose of the present invention is to provide a deep cavity processing system suitable for hard and brittle materials, which can overcome the shortcomings of the existing deep cavity processing methods for parts and components, and efficiently and accurately complete the processing of special-shaped and deep cavity hard and brittle material components.

The present invention adopts following technical scheme:

A deep cavity processing system suitable for hard and brittle materials, including an ultrasonic vibration grinding device installed on the main shaft of a machine tool, a lifting clamping device is arranged below the ultrasonic vibration grinding device, and the two sides of the lifting clamping device are respectively installed There are automatic external cooling devices and automatic grinding wheel dressing devices.

The ultrasonic vibration grinding device includes an ultrasonic generator, an outer ring fixing sleeve, an ultrasonic vibration tool system and a non-contact electromagnetic induction disc composed of an upper electromagnetic induction disc and a lower electromagnetic induction disc, and the outer ring fixing sleeve is fixed on the machine tool spindle The outer surface, the lower end surface of the outer ring fixing sleeve is fixed to the upper surface of the upper electromagnetic induction disk. The upper electromagnetic induction disk includes a fixed magnetic core and a fixed coil. The upper electromagnetic induction disk is connected to the ultrasonic generator through a cable. The ultrasonic vibration tool system is installed on the machine tool. The lower end of the main shaft and the lower electromagnetic induction disk are installed on the upper end of the ultrasonic vibrating tool system, and the lower electromagnetic induction disk is set opposite to the upper electromagnetic induction disk at intervals, and the lower electromagnetic induction disk includes a rotating magnetic core and a rotating coil.

The ultrasonic vibrating tool system includes a tool handle, a transducer, a compound horn and a grinding wheel; the tool handle is installed at the lower end of the machine tool spindle, the lower electromagnetic induction disc is installed on the outer circle step of the tool handle, and the transducer is arranged on the tool handle. The inside of the shank is connected to the lower electromagnetic induction plate through a cable, the transducer is connected to the large end of the compound horn, and the small end of the compound horn is connected to the grinding wheel. The machine tool spindle, tool handle, transducer, and compound horn Set coaxially with the grinding wheel.

The transducer, the composite horn and the grinding wheel are provided with through holes along the axial direction, and cooling pipes are arranged in the through holes, spray holes are opened on the bottom surface of the grinding wheel, and the through holes, cooling pipes, and spray holes are coaxially arranged with the grinding wheel.

The composite horn is an ultra-long horn composed of multiple busbars. The length of the composite horn is greater than 500mm and the surface of the composite horn is provided with one or more grooves along the circumference. Use rectangular and/or helical grooves.

The lifting clamping device includes a base and a rotary chuck. The rotary chuck is composed of a cylinder, a large bevel gear, a small bevel gear and a plurality of sliders. The large bevel gear and the small bevel gear are meshed and fixed Inside the cylinder, multiple sliders are set on the upper surface of the large end of the large bevel gear, and the lower surface of the slider and the upper surface of the large end of the large bevel gear are respectively provided with flat rectangular threads with matching thread pitches. The blocks are evenly arranged along the circumferential direction of the cylinder, and a hole is opened on the side of the cylinder, and a rotating sleeve with a square hole in the inner hole fixed with the small bevel gear is arranged in the hole; a handle is arranged on the outer surface of the cylinder, and the cylinder below the handle An external thread is arranged on the surface of the body, an inner hole is arranged on the base along the axial direction, an inner thread is arranged on the inner surface of the inner hole, and the cylindrical body is threadedly connected with the base.

The automatic external cooling device includes an automatic lifting cooling box, an automatic horizontal feeding system and a workbench. The automatic lifting cooling box includes an upper cylinder, a lower cylinder, a first servo motor, a pump body and a cooling pipeline. The lower end of the cylinder is fixed on the surface of one end of the workbench, the upper end of the lower cylinder is connected with the lower end of the upper cylinder through the static support plate, the first servo motor is set in the lower cylinder below the static support plate, and the ball screw passes through the static support plate And the upper end of the ball screw is rotationally connected with the inner surface of the top of the upper cylinder, the lower end of the ball screw is connected with the first servo motor, the screw is provided with a nut, and one side of the movable support plate is sleeved on the screw and positioned on the nut. On the upper side, the other side of the movable support plate is pierced with a guide shaft, the upper end of the guide shaft is connected with the inner surface of the top of the upper cylinder, the lower end of the guide shaft is connected with the static support plate, the pump body and the cooling pipe are arranged on the movable support plate The input end of the cooling pipe is connected to the output end of the pump body, and the output end of the cooling pipe passes through the top of the upper cylinder and is located outside the upper cylinder; the other end of the workbench is provided with trapezoidal teeth, and the automatic horizontal feed system is installed on the workbench. Outside one end of the trapezoidal teeth, the automatic horizontal feed system includes a second servo motor, and the output end of the second servo motor is provided with a gear meshing with the trapezoidal teeth.

The lower end of the screw in the ball screw is provided with an annular boss.

The automatic grinding wheel dressing device includes an automatic lifting mechanism and a grinding wheel dressing device. The automatic lifting mechanism includes a housing, a scissor lifting device, a supporting top plate and a three-phase asynchronous motor. The fixed end of the scissor lifting device is fixed on the housing On the base plate, the movable end of the scissor lifting device is fixed on the lower surface of the supporting top plate, and the three-phase asynchronous motor drives the supporting top plate to move up and down through the scissor lifting device; the grinding wheel dressing device includes a third servo motor, a dressing wheel drive shaft and Dressing wheel; the two ends of the drive shaft of the dressing wheel are respectively connected to the output shaft of the third servo motor and the dressing wheel, and the dressing wheel is located above the housing.

The scissor lift device includes a threaded transmission shaft and two sets of scissor lifts, each set of scissor lifts includes four support chain plates forming a rhombus, and the left and right support chain plates located on the upper part of the scissor lift pass through The movable top plate is hinged, the left and right support chain plates located at the lower part of the scissor lift are hinged through the fixed bottom plate, and the hinge shafts of the upper and lower support chain plates located at the left and right parts of the scissor lift are provided with horizontal screw holes. The threaded transmission shaft is passed through two horizontal screw holes in each set of scissor lifts and is threadedly connected with the hinge shafts of the upper and lower support chain plates on the left and right sides of each set of scissor lifts. The threaded transmission shaft is coaxially connected with the three-phase asynchronous motor, and the thread directions of the two segments of the threaded transmission shaft at the left and right hinged shafts of the same group of scissor lifts are opposite.

The ultrasonic vibration grinding device in the present invention can process the deep cavity of hard and brittle material workpieces. By combining the ultrasonic vibration technology with the high-efficiency grinding technology, the stiffness and stability of the ultrasonic vibration tool system are greatly improved, and the grinding time is reduced. Cutting force and grinding heat are reduced, thereby greatly reducing grinding chatter and grinding wheel clogging, which not only ensures the surface quality of the inner cavity of the workpiece, but also effectively improves the processing efficiency. The lift-type clamping device can adjust the fixture arbitrarily according to the height of the parts and the size of the aperture, ensuring that the present invention is applicable to the clamping of parts of different sizes. The automatic external cooling device is used to cool the workpiece during processing, reduce a large amount of grinding heat generated during the inner cavity grinding process, and prolong the service life of each component in the present invention. The automatic grinding wheel dressing device can dress the dressing wheel, so as to avoid the phenomenon that the surface quality of the inner cavity is degraded due to the continuous passivation of the abrasive grains during the grinding process of the dressing wheel, so as to ensure the precision machining of the inner cavity.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of ultrasonic vibrating tool system in the present invention;

Fig. 3 is a structural schematic diagram of the lift type clamping device in the present invention;

Fig. 4 is the structural representation of automatic external cooling device among the present invention;

Fig. 5 is a schematic structural view of the automatic grinding wheel dressing device of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:

As shown in Figures 1 to 5, the deep cavity processing system suitable for hard and brittle materials according to the present invention includes an ultrasonic vibration grinding device installed on the main shaft of the machine tool, and the ultrasonic vibration grinding device cooperates with the taper of the main shaft hole of the machine tool; An elevating clamping device is arranged below the ultrasonic vibration grinding device, and an automatic external cooling device and an automatic grinding wheel dressing device 10 are respectively arranged on both sides of the elevating clamping device. The ultrasonic vibration grinding device can process the deep cavity of the hard and brittle material workpiece 16. By combining the ultrasonic vibration technology with the high-efficiency grinding technology, the rigidity and stability of the ultrasonic vibration tool system 5 are greatly improved, and the grinding time is reduced. Force and grinding heat, thereby greatly reducing the grinding chatter, reducing the clogging of the grinding wheel 15, not only ensuring the surface quality of the inner cavity of the workpiece 16, but also effectively improving the processing efficiency. The lift-type clamping device can adjust the fixture arbitrarily according to the height of the parts and the size of the aperture, ensuring that the present invention is applicable to the clamping of parts of different sizes. The automatic external cooling device is used to cool the workpiece 16 during processing, reduce a large amount of grinding heat generated during the inner cavity grinding process, and prolong the service life of each component in the present invention. The automatic grinding wheel dressing device 10 can dress the dressing wheel 35 to avoid the phenomenon that the surface quality of the inner cavity is degraded due to the continuous passivation of the abrasive grains of the dressing wheel 35 during the grinding process, so as to ensure the precision machining of the inner cavity.

The ultrasonic vibration grinding device includes an ultrasonic generator 1, an outer ring fixing sleeve 2, an ultrasonic vibration tool system 5 and a non-contact electromagnetic induction disc composed of an upper electromagnetic induction disc 3 and a lower electromagnetic induction disc 4, and the outer ring is fixed The sleeve 2 is fixed on the outer surface of the main shaft of the machine tool, the lower end surface of the outer ring fixing sleeve 2 is fixed to the upper surface of the upper electromagnetic induction disk 3, the upper electromagnetic induction disk 3 includes a fixed magnetic core and a fixed coil, and the upper electromagnetic induction disk 3 generates ultrasonic waves through cables. The ultrasonic vibrating tool system 5 is installed on the lower end of the machine tool spindle, the lower electromagnetic induction disc 4 is installed on the upper end of the ultrasonic vibrating tool system 5, and the lower electromagnetic induction disc 4 and the upper electromagnetic induction disc 3 are arranged opposite to each other at intervals of 1mm-2mm. The lower electromagnetic induction disk 4 includes a rotating magnetic core and a rotating coil.

The ultrasonic vibration tool system 5 includes a tool handle 13, a transducer 12, a composite horn 14 and a grinding wheel 15; the tool handle 13 is installed on the lower end of the machine tool spindle, and the lower electromagnetic induction disc 4 is installed on the outer circle step 42 of the tool handle 13, The transducer 12 is arranged inside the handle 13 and is connected to the lower electromagnetic induction disc 4 through a cable, the transducer 12 is connected to the large end (upper end) of the compound horn 14, and the small end (lower end) of the compound horn 14 Connected with the grinding wheel 15, the machine tool spindle, tool handle 13, transducer 12, composite horn 14 and grinding wheel 15 are arranged coaxially.

In order to reduce a large amount of grinding heat generated in the inner cavity grinding process, an internal cooling system is also provided inside the ultrasonic vibrating tool system 5 in the present invention. The internal cooling system includes a through hole and a cooling pipe 11, a transducer 12, a compound variable The rod 14 and the grinding wheel 15 are provided with a through hole in the axial direction, and a cooling pipe 11 is arranged in the through hole. Since the size of the cooling pipe 11 is smaller than the inner diameter of the through hole, it can effectively prevent the cooling pipe 11 from being deformed and damaged due to grinding heat. . The bottom surface of the grinding wheel 15 is provided with a spray hole 43, and the through hole, the cooling pipe 11, the spray hole 43 and the grinding wheel 15 are arranged coaxially. The spray hole 43 can adopt the spray hole 43 of truncated cone shape, and the upper end of the spray hole 43 of truncated cone shape is positioned at the 1/2 height of the emery wheel 15, so that the cooling liquid in the cooling pipe 11 is sputtered to the outer circumference of the emery wheel 15.

In the present invention, the composite horn 14 is an ultra-long horn composed of multiple busbars, the length of the composite horn 14 is greater than 500 mm, and the surface of the composite horn 14 is provided with one or more grooves in the circumferential direction , the groove adopts rectangular groove and/or spiral groove. The composite horn 14 can be combined with specific actual requirements while fully considering dynamic properties such as amplification factor and shape factor, for example, using an exponential composite super long horn, a Gauss type Searle type composite super long horn. According to the different requirements for the mode shape of the composite horn 14, the present invention realizes longitudinal vibration, bending vibration, longitudinal-bend coupling vibration, longitudinal-torsion coupling vibration, bending-torsion coupled vibration and/or coupled longitudinal-bending-torsional vibration.

The lifting clamping device includes a base 7 and a rotary chuck 6. The rotary chuck 6 is composed of a cylinder 22, a large bevel gear 18, a small bevel gear 21 and a plurality of sliders 17. The large bevel gear 18 It meshes with the small bevel gear 21 and is fixed inside the cylinder 22. A plurality of sliders 17 are arranged on the upper surface of the large end of the large bevel gear 18. The lower surface of the slider 17 and the upper surface of the large end of the large bevel gear 18 are respectively A plane rectangular thread matching the thread pitch is provided, and a plurality of sliders 17 are evenly arranged along the circumferential direction of the cylinder body 22, and a hole is opened on the side of the cylinder body 22, and a rotating sleeve fixed with the small bevel gear 21 is arranged in the hole, and the rotation The sleeve can rotate in the hole, the inner hole of the rotating sleeve is a square hole 20; the outer surface of the cylinder 22 is provided with a handle 19, the outer surface of the cylinder 22 below the handle 19 is provided with external threads, and the base 7 is arranged along the axial direction There is an inner hole, the inner surface of the inner hole is provided with internal threads, and the cylindrical body 22 is threadedly connected with the base 7 . In this embodiment, four sliders 17 uniformly distributed along the circumferential direction of the cylindrical body 22 may be provided.

The automatic external cooling device includes an automatic lifting cooling box 8, an automatic horizontal feed system 29 and a workbench 9. The automatic lifting cooling box 8 includes an upper cylinder 33, a lower cylinder 31, a first servo motor 28, The pump body 25 and the cooling pipeline 23, the lower end of the lower cylinder 31 is fixed on the surface of one end of the workbench 9, the upper end of the lower cylinder 31 is connected with the lower end of the upper cylinder 33 through the static support plate 32, and the first servo motor 28 is arranged on the static support. In the lower cylinder 31 below the plate 32, the ball screw 24 passes through the static support plate 32 and the upper end of the ball screw 24 is connected to the top inner surface of the upper cylinder 33, and the lower end of the ball screw 24 is connected to the first servo motor 28 To connect, the leading screw is provided with a nut 27, and the nut 27 can adopt a square nut. One side of the movable support plate 26 is sleeved on the lead screw and is located on the upper side of the nut 27, and the other side of the movable support plate 26 is pierced with a guide shaft 34, and the upper end of the guide shaft 34 is connected with the top inner surface of the upper cylinder 33, The lower end of the guide shaft 34 is connected with the static support plate 32 , and the pump body 25 is arranged on the movable support plate 26 . The pump body 25 can move up and down along with the rotation of the ball screw 24, so as to realize vertical lifting. The input end of the cooling pipe 23 is connected to the output end of the pump body 25, and the output end of the cooling pipe 23 passes through the top of the upper cylinder 33 and is located outside the upper cylinder 33; Feed system 29 is installed outside the workbench 9 end that is provided with trapezoidal teeth 30 , automatic horizontal feed system 29 includes second servomotor 29 , the output end of second servomotor 29 is provided with the gear that meshes with trapezoidal teeth 30 . When the second servo motor 29 works, it can drive the workbench 9 to move horizontally, thereby driving the automatic lifting cooling box 8 fixed on the workbench 9 to realize horizontal feeding.

The lower end of the ball screw 24 is provided with an annular boss, which can effectively avoid the phenomenon that the dynamic support plate 26 impacts the static support plate 32 due to sudden power failure, and prolongs the service life of the present invention.

The automatic grinding wheel dressing device 10 includes an automatic lifting mechanism and a grinding wheel dressing device. The automatic lifting mechanism includes a housing, a scissor lifting device, a supporting top plate 37 and a three-phase asynchronous motor 38, and the fixed end of the scissor lifting device is fixed. On the bottom plate of the housing, the movable end of the scissor lifting device is fixed on the lower surface of the support top plate 37, and the three-phase asynchronous motor 38 drives the support top plate 37 to move up and down through the scissor lift device; the grinding wheel dressing device includes a third servo motor 36. The dressing wheel transmission shaft 41 and the dressing wheel 35; the two ends of the dressing wheel transmission shaft 41 are respectively connected to the output shaft of the third servo motor 36 and the dressing wheel 35, and the dressing wheel 35 is located above the housing.

The scissor lift device includes a threaded transmission shaft 40 and two sets of scissor lifts, each set of scissor lifts includes four support chain plates 39 forming a rhombus, and the left and right support chain plates 39 on the upper part of the scissor lift pass through The movable top plate is hinged, the movable top plate is fixed on the lower surface of the supporting top plate 37, and the left and right supporting chain plates 39 located at the lower part of the scissor lift are hinged through the fixed bottom plate, and the fixed bottom plate is fixed on the bottom plate of the shell, which is located at the left part of the scissor lift Horizontal screw holes are all arranged on the hinge shafts of the upper and lower support chain plates 39 on the right and the right, and the threaded drive shaft 40 is penetrated in the two horizontal screw holes in each group of scissor lifters and connected with each group of scissor lifters. The hinge shafts of the upper and lower two support chain plates 39 on the left and right parts of the machine are threaded, the threaded drive shaft 40 of the scissor lift device is coaxially connected with the three-phase asynchronous motor 38, and the threaded drive shaft 40 is located on the left side of the same scissor lifter. The thread directions of the two sections of threads at the hinge shafts of the upper and right hinges are opposite.

When the present invention is in use, the lifting clamping device is first adjusted according to the actual height of the workpiece 16 .

When adjusting the lifting clamping device, first turn the handle 19 to adjust the height of the rotary chuck 6, and stop turning the handle 19 when the rotary chuck 6 rises to slightly higher than the height of the workpiece 161/2; then the workpiece 16 is put into the rotary chuck 6, and the square hole 20 located on the side of the cylinder body 22 is rotated by a voltaic wrench, thereby driving the small bevel gear 21 in the rotary chuck 6 to rotate, because the large bevel gear 18 and the small bevel gear 21 mesh with each other, and then push the large bevel gear 18 to rotate, and because the lower surface of the slider 17 is equal to the pitch of the plane rectangular thread set on the upper surface of the large end of the large bevel gear 18, the slider 17 can convert the circular motion of the large bevel gear 18 For the radial movement, the workpiece 16 is progressively clamped.

After adjusting the lifting clamping device and fixing the workpiece 16, start the machine tool again, and move the grinding wheel 15 in the ultrasonic vibration tool system 5 at the lower end of the machine tool spindle to the vicinity of the working position; then start the first servo in the automatic external cooling device The motor 28 and the second servo motor 29 adjust the height of the pump body 25 and the horizontal position of the automatic lifting cooling box 8 respectively. When the two positions are appropriate, adjust the output nozzle of the cooling pipeline 23 to move to the upper right of the grinding wheel 15, and then turn on the pump. body 25, so that the internal cooling system and the automatic external cooling device installed inside the ultrasonic vibration tool system 5 work simultaneously to spray coolant during deep cavity processing. Then start the ultrasonic generator 1, the ultrasonic generator 1 transmits the electrical signal to the upper electromagnetic induction disc 3 arranged at the lower end of the outer ring fixed sleeve 2 through the cable, and the upper electromagnetic induction disc 3 and the lower electromagnetic induction disc 4 will undergo electromagnetic induction, The induced current is transmitted to the transducer 12 inside the tool handle 13 through the cable, and the transducer 12 produces an inverse piezoelectric effect, and then converts the electrical signal into a mechanical wave of simple harmonic vibration, and the amplitude of the mechanical wave is amplified by the compound horn 14 to finally realize The ultrasonic vibration of the grinding wheel 15 fixed at the output end of the compound horn 14 . Finally, turn on the rotary switch of the main shaft of the machine tool to process the inner cavity of the workpiece 16 clamped by the lifting clamping device, and adjust the grinding depth and feed rate in real time according to the processing requirements of the workpiece 16 .

As the vibration grinding proceeds, the abrasive grains on the surface of the grinding wheel 15 will inevitably be passivated, which will lead to a decline in grinding efficiency and processing quality. At this time, stop the inner cavity grinding, then adjust the grinding wheel 15 to move to the dressing position, start the third servo motor 36 in the automatic grinding wheel dressing device 10 at the same time, utilize the low-speed dressing wheel 35 to dress the high-speed grinding wheel 15, and start the automatic lifting mechanism The three-phase asynchronous motor 38 of the three-phase asynchronous motor converts the circular rotation of the three-phase asynchronous motor 38 into the up-and-down reciprocating motion of the dressing wheel 35 through a scissor lifting device, thereby realizing the up-and-down reciprocating dressing of the grinding wheel 15 by the dressing wheel 35, which can greatly improve the grinding wheel 15. Trimming efficiency. After the trimming is completed, the trimmed grinding wheel 15 is moved to the stop position of the previous work, so that the grinding wheel 15 continues to process the workpiece 16, so that the reciprocating cycle finally realizes the precise and efficient deep cavity processing of the hard and brittle material workpiece 16.

Claims (10)

1. A deep cavity processing system suitable for hard and brittle materials, characterized in that it includes an ultrasonic vibration grinding device installed on the spindle of the machine tool, a lifting clamping device is arranged below the ultrasonic vibration grinding device, and the lifting clamping There are also automatic external cooling devices and automatic grinding wheel dressing devices on both sides of the device. 2. The deep cavity processing system suitable for hard and brittle materials according to claim 1, characterized in that: the ultrasonic vibration grinding device includes an ultrasonic generator, an outer ring fixing sleeve, an ultrasonic vibration tool system and a power-on A non-contact electromagnetic induction disk composed of a magnetic induction disk and a lower electromagnetic induction disk. The outer ring fixing sleeve is fixed on the outer surface of the machine tool spindle. The lower end surface of the outer ring fixing sleeve is fixed to the upper surface of the upper electromagnetic induction disk. Core and fixed coil, the upper electromagnetic induction disk is connected with the ultrasonic generator through a cable, the ultrasonic vibration tool system is installed at the lower end of the machine tool spindle, the lower electromagnetic induction disk is installed at the upper end of the ultrasonic vibration tool system, and the lower electromagnetic induction disk is separated from the upper electromagnetic induction disk Relatively arranged, the lower electromagnetic induction disk includes a rotating magnetic core and a rotating coil. 3. The deep cavity processing system suitable for hard and brittle materials according to claim 2, characterized in that: the ultrasonic vibrating tool system includes a tool holder, a transducer, a composite horn and a grinding wheel; the tool holder is installed on The lower end of the machine tool spindle, the lower electromagnetic induction disc is installed on the outer circle step of the tool handle, the transducer is arranged inside the tool handle and connected to the lower electromagnetic induction disc through a cable, the transducer is connected to the large end of the compound horn, and the compound The small end of the horn is connected with the grinding wheel, and the main shaft of the machine tool, the tool holder, the transducer, the compound horn and the grinding wheel are coaxially arranged. 4. The deep cavity processing system suitable for hard and brittle materials according to claim 3, characterized in that: the transducer, the compound horn and the grinding wheel are provided with through holes along the axial direction, and the through holes are provided with The cooling pipe and the bottom surface of the grinding wheel are provided with spray holes, and the through holes, cooling pipes, spray holes and the grinding wheel are arranged coaxially. 5. The deep cavity processing system suitable for hard and brittle materials according to claim 3, characterized in that: the composite horn is an ultra-long horn made of multiple busbars, and the composite horn The length of the horn is greater than 500mm and the surface of the composite horn is provided with one or more grooves in the circumferential direction, and the grooves adopt rectangular grooves and/or spiral grooves. 6. The deep cavity processing system suitable for hard and brittle materials according to claim 1, characterized in that: the lifting clamping device includes a base and a rotary chuck, and the rotary chuck consists of a cylinder, a large Composed of bevel gear, small bevel gear and multiple sliders, the large bevel gear and small bevel gear mesh with each other and are fixed inside the cylinder, multiple sliders are set on the upper surface of the large end of the large bevel gear, and the lower surface of the slider The upper surface of the large end of the large bevel gear is respectively provided with a flat rectangular thread that matches the thread pitch, and a plurality of sliders are evenly arranged along the circumferential direction of the cylinder, and a hole is opened on the side of the cylinder. The fixed inner hole is a rotating sleeve with a square hole; the outer surface of the cylinder is provided with a handle, the outer surface of the cylinder under the handle is provided with external threads, the base is provided with an inner hole along the axial direction, and the inner surface of the inner hole is provided with internal threads. The cylindrical body is threadedly connected with the base. 7. The deep cavity processing system suitable for hard and brittle materials according to claim 1, characterized in that: the automatic external cooling device includes an automatic lifting cooling box, an automatic horizontal feeding system and a workbench, and the automatic The lifting cooling box includes an upper cylinder, a lower cylinder, a first servo motor, a pump body and a cooling pipe. The lower end of the lower cylinder is fixed on the surface of one end of the workbench, and the upper end of the lower cylinder is connected to the lower end of the upper cylinder through a static support plate. , the first servo motor is arranged in the lower cylinder below the static support plate, the ball screw passes through the static support plate and the upper end of the ball screw is connected to the inner surface of the top of the upper cylinder in rotation, and the lower end of the ball screw is connected to the first servo motor Connection, the screw is provided with a nut, one side of the movable support plate is sleeved on the screw and located on the upper side of the nut, the other side of the movable support plate is pierced with a guide shaft, and the upper end of the guide shaft is in the top of the upper cylinder. Surface connection, the lower end of the guide shaft is connected to the static support plate, the pump body is set on the dynamic support plate, the input end of the cooling pipe is connected to the output end of the pump body, and the output end of the cooling pipe passes through the top of the upper cylinder and is located outside the upper cylinder The other end of the workbench is provided with trapezoidal teeth, and the automatic horizontal feed system is installed on the outside of one end of the workbench provided with trapezoidal teeth. The automatic horizontal feed system includes a second servo motor, and the output end of the second servo motor is provided with A gear that meshes with trapezoidal teeth. 8. The deep cavity processing system suitable for hard and brittle materials according to claim 7, characterized in that: the lower end of the screw in the ball screw is provided with an annular boss. 9. The deep cavity processing system suitable for hard and brittle materials according to claim 1, characterized in that: the automatic grinding wheel dressing device includes an automatic lifting mechanism and a grinding wheel dressing device, and the automatic lifting mechanism includes a housing, Scissor lifting device, supporting top plate and three-phase asynchronous motor, the fixed end of the scissor lifting device is fixed on the bottom plate of the shell, the movable end of the scissor lifting device is fixed on the lower surface of the supporting top plate, and the three-phase asynchronous motor is lifted by scissors The device drives the supporting top plate to move up and down; the grinding wheel dressing device includes a third servo motor, a dressing wheel transmission shaft and a dressing wheel; the two ends of the dressing wheel transmission shaft are respectively connected to the output shaft of the third servo motor and the dressing wheel, and the dressing wheel is located at above the casing. 10. The deep cavity processing system suitable for hard and brittle materials according to claim 9, characterized in that: the scissor lift device includes a threaded drive shaft and two sets of scissor lifts, each set of scissor lifts It consists of four supporting chain plates forming a rhombus. The left and right supporting chain plates located at the upper part of the scissor lift are hinged through the movable top plate, and the left and right supporting chain plates located at the lower part of the scissor lift are hinged through the fixed bottom plate. There are horizontal screw holes on the hinge shafts of the upper and lower supporting chain plates on the left and right parts of the lifter, and the threaded drive shafts pass through the two horizontal screw holes in each set of scissor lifters and are connected with each set of scissor lifters. The hinge shafts of the upper and lower supporting chain plates on the left and right parts of the lifter are threaded, and the threaded drive shaft of the scissor lift device is coaxially connected with the three-phase asynchronous motor. The thread directions of the two sections of threads at the hinge shaft at the top are opposite.