CN116748961A - Ultrasonic grinding device and method for mirror plate - Google Patents
Ultrasonic grinding device and method for mirror plate Download PDFInfo
- Publication number
- CN116748961A CN116748961A CN202310670331.5A CN202310670331A CN116748961A CN 116748961 A CN116748961 A CN 116748961A CN 202310670331 A CN202310670331 A CN 202310670331A CN 116748961 A CN116748961 A CN 116748961A
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- mirror plate
- support arm
- phased array
- grinding
- main shaft
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000026683 transduction Effects 0.000 claims description 23
- 238000010361 transduction Methods 0.000 claims description 23
- 239000003638 chemical reducing agent Substances 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000007547 defect Effects 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 claims description 8
- 238000003754 machining Methods 0.000 claims 1
- 239000003082 abrasive agent Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/04—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
Abstract
An ultrasonic grinding device and method for a mirror plate are provided, wherein a main shaft is longitudinally arranged on a base, a first support arm is rotatably arranged at the upper end of the main shaft, a second support arm is rotatably arranged at one end of the first support arm far away from the main shaft, a telescopic arm is arranged at one end of the second support arm far away from the first support arm, a phased array ultrasonic transducer is arranged at the lower end of the telescopic arm, and during grinding, the phased array ultrasonic transducer is spaced from the ground mirror plate by a certain distance. The base is used for fixing and supporting the main shaft, the main shaft is used for supporting and installing the first support arm, the first support arm and the second support arm can support the phased array ultrasonic transducer, the phased array ultrasonic transducer can swing on the upper side face of the mirror plate, the phased array ultrasonic transducer is used for agitating grinding agents or grinding paste to grind the mirror plate, and therefore the mirror plate can be efficiently ground, and damage to the mirror plate during grinding is small.
Description
Technical Field
The invention belongs to the technical field of maintenance of hydroelectric generating sets, and particularly relates to an ultrasonic grinding device and method for a mirror plate.
Background
The thrust bearing is a crucial component of a large-sized hydroelectric generating set, and the mirror plate is one of the components indispensable to the thrust bearing. When the hydraulic turbine unit is shut down for maintenance, the surface of the mirror plate is often found to have micro scratch defects, and the surface roughness of the mirror plate is difficult to reach the reinstallation standard. In order to ensure the normal operation thereof, the grinding process of the mirror plate is extremely demanding, the quality of the maintenance and the repair of the mirror plate directly influences the service life of the thrust shoe, and the stable operation of the whole unit can be endangered.
Currently, the polishing of a mirror plate mainly depends on an electric polishing machine, and the polishing head rotates positively and negatively on the mirror plate until a mirror surface is formed. The traditional mirror plate grinding machine grinds the mirror plate, and the time and the effect of grinding are completely by experience, and the grinding surface is checked by stopping after grinding for a certain time, if the grinding is still failed and then is continued, the grinding is repeated, so that the efficiency is not high, and the planeness of the mirror plate can be influenced by excessive grinding at one place.
Disclosure of Invention
The invention aims to solve the technical problems that: solves the problems existing in the prior art and provides an ultrasonic grinding device with high grinding efficiency and small damage to a lens plate.
The invention aims to solve the other technical problems that: a method for realizing ultrasonic grinding of a mirror plate by adopting the ultrasonic grinding device for the mirror plate is provided.
In order to achieve the technical characteristics, the aim of the invention is realized in the following way: the utility model provides an ultrasonic grinding device for mirror plate, includes base, main shaft, first support arm, second support arm, flexible arm and phased array ultrasonic transduction device, the main shaft is installed to fore-and-aft on the base, and the upper end pivoted of main shaft installs first support arm, first support arm is kept away from the one end pivoted of main shaft installs the second support arm, and the second support arm is kept away from the one end of first support arm is installed flexible arm, and install the lower extreme of flexible arm phased array ultrasonic transduction device, when grinding, phased array ultrasonic transduction device and the mirror plate interval one distance of grinding.
The first support arm is driven by the first motor to rotate around the main shaft, the second support arm is driven by the second motor to rotate around the end part of the first support arm, and the controller is electrically connected with the first motor, the second motor, the telescopic arm and the phased array ultrasonic transducer.
The base includes the bottom plate, and the outer circumference equipartition of bottom plate is equipped with at least three landing leg, and adjusting bolt is installed to the landing leg in the one end of keeping away from the bottom plate, and the counter weight is installed to the top of bottom plate, and the main shaft is installed on the counter weight, still install the spirit level on the bottom plate.
The upper end of the main shaft is fixedly provided with two first lug seats, one end of the first support arm connected with the main shaft is longitudinally provided with a first rotating shaft, the first rotating shaft is rotatably arranged between the two first lug seats, the first lug seats positioned at the top of the main shaft are fixedly provided with first speed reducers, an output shaft of each first speed reducer is connected with the corresponding first rotating shaft for transmission, and the first motor is connected with each first speed reducer for transmission.
The first support arm is equipped with the second ear seat with the one end that the second support arm is connected, and the one end that the second support arm is connected with the first support arm is equipped with the third ear seat, and the second ear seat rotates with the third ear seat through the second pivot to be connected, second pivot and second ear seat fixed connection, second pivot rotates with the third ear seat to be connected, and fixed mounting has the second speed reducer on the third ear seat, and the output shaft and the second pivot of second speed reducer are connected, the second motor is connected with the transmission of second speed reducer.
The second support arm is kept away from the one end of first support arm is installed the sheath, and the upper end of flexible arm is installed in the sheath, flexible arm is linear electric motor or is electric putter.
The phased array ultrasonic transduction device comprises a fixing seat and a plurality of ultrasonic transducers, wherein the ultrasonic transducers are arranged on the lower side of the fixing seat in a matrix mode, and the vibrating ends of the ultrasonic transducers extend out of the bottom of the fixing seat.
The system also comprises a mirror plate identification system, wherein the mirror plate identification system comprises a three-dimensional laser sensor which is arranged on the phased array ultrasonic transduction device.
The phased array ultrasonic transducer is characterized in that a plurality of filling heads for filling grinding agents are further arranged on the phased array ultrasonic transducer, the filling heads are located between adjacent ultrasonic transducers, a filling bin is arranged on the upper side of the phased array ultrasonic transducer, the upper end of the filling heads is communicated with the filling bin, and a filling connection port is formed in the filling bin.
A method of using the ultrasonic grinding apparatus for a mirror plate, comprising the steps of:
s1, placing the contact surface of the mirror plate and the thrust tile upwards on a special support pier of the mirror plate, and adjusting the plane of the mirror plate to be horizontal;
s2, hanging the grinding device into an inner ring of the mirror plate, and adjusting the base to be horizontal through an adjusting bolt on the base;
s3, remotely moving the three-dimensional laser sensor to a position above the annular surface of the mirror plate, then starting a scanning program, enabling the first support arm to rotate around the main shaft, enabling the three-dimensional laser sensor to acquire the size and defect information of the mirror plate, and transmitting the information back to the controller to automatically generate a processing track;
s4, the telescopic arm acts to drive the phased array ultrasonic transducer and the three-dimensional laser sensor to move downwards, and when the three-dimensional laser sensor detects that the phased array ultrasonic transducer is 0.5-1.5 mm away from the mirror plate, the telescopic arm stops extending and locks the extension;
s5, grinding is started, grinding agents are filled on the mirror plate through a filling head, meanwhile, a power supply of the phased array ultrasonic transducer device is started, sine waves generated by the superimposed ultrasonic transducer matrix from the center to the periphery are controlled under the allocation of the controller, and the grinding agents are excited to vibrate at a high speed to grind the mirror plate;
s6, the first motor and the second motor change the angles of the first support arm and the second support arm according to the processing track to realize full coverage of the surface of the mirror plate; when the mirror plate is ground, the three-dimensional laser sensor monitors the quality of the surface of the mirror plate in real time, and when the defect on the surface of the mirror plate disappears, the device stops working, and the first motor, the second motor and the telescopic arm drive the phased array ultrasonic wave transduction device and the three-dimensional laser sensor to return to the initial positions.
The invention has the following beneficial effects:
1. the base is used for fixing and supporting the main shaft, the main shaft is used for supporting and installing the first support arm, the first support arm and the second support arm can support the phased array ultrasonic wave transduction device, and make the phased array ultrasonic wave transduction device swing on the upper side of the mirror plate, the phased array ultrasonic wave transduction device is used for agitating the grinding agent or grinding paste to grind the mirror plate, and therefore the mirror plate can be efficiently ground, dust and heat cannot be generated in the grinding processing process because the phased array ultrasonic wave transduction device is not contacted with the mirror plate, and accordingly surface burrs and oxidization are reduced, damage to the mirror plate is small during grinding, and the obtained mirror plate is good in surface smoothness.
2. The first support arm is driven by the first motor to rotate around the main shaft, the second support arm is driven by the second motor to rotate around the end part of the first support arm, and the controller is electrically connected with the first motor, the second motor, the telescopic arm and the phased array ultrasonic transducer. Through the structure, the controller can control the first support arm, the second support arm, the telescopic arm and the phased array ultrasonic transducer to automatically operate, so that the degree of automation is improved, and the manual intervention is reduced.
3. The ultrasonic transducer is connected with an ultrasonic power supply, and the ultrasonic power supply can be installed together with the controller. Each ultrasonic transducer independently generates sound waves with different phase angles and 20MHz frequency, and under the allocation of a controller, the sine waves generated by the superimposed ultrasonic probe matrix from the center to the periphery are controlled.
4. The device is also provided with a mirror plate identification system so as to identify the size and defects of the mirror plate.
5. The phased array ultrasonic transduction device is also provided with a plurality of filling heads for filling the grinding agent, so that the grinding agent or grinding paste can be automatically filled. The degree of automation is improved, and the manual intervention is reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic structural view of an ultrasonic transducer according to the present invention.
FIG. 3 is a schematic view of the present invention in use.
In the figure: base 1, bottom plate 11, landing leg 12, adjusting bolt 13, spirit level 14, counter weight 15, main shaft 2, first ear seat 21, first speed reducer 22, first motor 23, first support arm 3, first pivot 31, second ear seat 32, second speed reducer 33, second motor 34, second support arm 4, third ear seat 41, second pivot 42, sheath 43, flexible arm 5, phased array ultrasonic transducer 6, fixing base 61, ultrasonic transducer 62, filling head 63, filling bin 64, filling connector 65, three-dimensional laser sensor 7, controller 8, mirror plate 9.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Embodiment one:
referring to fig. 1-3, an ultrasonic grinding device for a mirror plate comprises a base 1, a main shaft 2, a first support arm 3, a second support arm 4, a telescopic arm 5 and a phased array ultrasonic wave transduction device 6, wherein the main shaft 2 is longitudinally arranged on the base 1, the first support arm 3 is rotatably arranged at the upper end of the main shaft 2, the second support arm 4 is rotatably arranged at one end, away from the main shaft 2, of the first support arm 3, the telescopic arm 5 is arranged at one end, away from the first support arm 3, of the second support arm 4, the phased array ultrasonic wave transduction device 6 is arranged at the lower end of the telescopic arm 5, and the phased array ultrasonic wave transduction device 6 is spaced from the mirror plate 9 to be ground during grinding. The base 1 is used for fixing and supporting the main shaft 2, the main shaft 2 is used for supporting and installing the first support arm 3, the first support arm 3 and the second support arm 4 can support the phased array ultrasonic wave transduction device 6, the phased array ultrasonic wave transduction device 6 can swing on the upper side face of the mirror plate 9, the phased array ultrasonic wave transduction device 6 is used for agitating an abrasive agent or grinding paste to grind the mirror plate 9, and through the structure, the mirror plate 9 can be efficiently ground, and damage to the mirror plate during grinding is small.
Further, referring to fig. 1, the first support arm 3 is driven by the first motor 23 to rotate around the spindle 2, the second support arm 4 is driven by the second motor 34 to rotate around the end of the first support arm 3, and the controller 8 is electrically connected to the first motor 23, the second motor 34, the telescopic arm 5 and the phased array ultrasonic transducer 6. Through the structure, the controller 8 can control the automatic operation of the first support arm 3, the second support arm 4, the telescopic arm 5 and the phased array ultrasonic transducer 6.
Referring to fig. 1, the base 1 comprises a bottom plate 11, three supporting legs 12 are all arranged on the outer circumference of the bottom plate 11, an adjusting bolt 13 is installed at one end, far away from the bottom plate 11, of each supporting leg 12, a counterweight 15 is installed above the bottom plate 11, the main shaft 2 is installed on the counterweight 15, and a level 14 is also installed on the bottom plate 11. The leveling instrument 14 is used for indicating the levelness of the base 1 by adjusting the level of the base 1 through the adjusting bolt 13.
In the preferred scheme, two first ear seats 21 are fixedly arranged at the upper end of the main shaft 2, a first rotating shaft 31 is longitudinally arranged at one end, connected with the main shaft 2, of the first support arm 3, the first rotating shaft 31 is rotatably arranged between the two first ear seats 21, a first speed reducer 22 is fixedly arranged on the first ear seat 21 positioned at the top of the main shaft 2, an output shaft of the first speed reducer 22 is connected with the first rotating shaft 31 for transmission, and the first motor 23 is connected with the first speed reducer 22 for transmission.
In a preferred scheme, one end of the first support arm 3 connected with the second support arm 4 is provided with a second ear seat 32, one end of the second support arm 4 connected with the first support arm 3 is provided with a third ear seat 41, the second ear seat 32 is rotationally connected with the third ear seat 41 through a second rotating shaft 42, the second rotating shaft 42 is fixedly connected with the second ear seat 32, the second rotating shaft 42 is rotationally connected with the third ear seat 41, a second speed reducer 33 is fixedly installed on the third ear seat 41, an output shaft of the second speed reducer 33 is connected with the second rotating shaft 42, and the second motor 34 is connected with the second speed reducer 33 for transmission.
In a preferred solution, a sheath 43 is mounted at an end of the second support arm 4 away from the first support arm 3, an upper end of the telescopic arm 5 is mounted in the sheath 43, and the telescopic arm 5 is a linear motor or an electric push rod.
In order to ensure the movement accuracy of the first arm 3, the second arm 4, and the telescopic arm 5, the first motor 23, the second motor 34, the linear motor, or the electric push rod are all servo motors.
Specifically, referring to fig. 2, the phased array ultrasonic transducer apparatus 6 includes a fixing base 61 and a plurality of ultrasonic transducers 62, wherein the plurality of ultrasonic transducers 62 are mounted on the lower side of the fixing base 61 in a matrix, and the vibration end of the ultrasonic transducer 62 protrudes from the bottom of the fixing base 61. In use, the ultrasonic transducer 62 is connected to an ultrasonic power supply, which may be mounted with the controller 8. Each ultrasonic transducer 62 independently generates sound waves with a frequency of 20MHz and a phase angle of different, and under the allocation of the controller, the sine wave generated by the superimposed ultrasonic probe matrix from the center to the periphery is controlled.
In order to enable automatic lapping of the mirror plate, the apparatus is also equipped with a mirror plate recognition system. The mirror plate recognition system comprises a three-dimensional laser sensor 7 mounted on a phased array ultrasonic transducer device 6. In use, the three-dimensional laser sensor 7 is connected with an adapted controller.
Further, in order to facilitate automatic filling of the abrasive agent or the abrasive paste, the phased array ultrasonic transducer 6 is further provided with a plurality of filling heads 63 for filling the abrasive agent. Referring to fig. 2, a filling head 63 is located between adjacent ultrasonic transducers 62, a filling bin 64 is arranged on the upper side of the phased array ultrasonic transducer device 6, the upper end of the filling head 63 is communicated with the filling bin 64, and a filling connection port 65 is arranged on the filling bin 64. In use, the abrasive-filled pump is connected to the filling connection port 65 via a pipe, and pumps the abrasive into the filling chamber 64, and finally the abrasive is extruded from the filling head 63 onto the mirror plate 9.
Embodiment two:
a method for grinding a mirror plate by using the ultrasonic grinding device for the mirror plate, comprising the following steps:
s1, placing the contact surface of the mirror plate 9 and the thrust tile on a special support pier of the mirror plate, and adjusting the plane of the mirror plate 9 to be horizontal.
S2, hanging the grinding device into the inner ring of the mirror plate 9, and adjusting the base 1 to be horizontal through an adjusting bolt 13 on the base 1.
S3, remotely moving the three-dimensional laser sensor 7 to a position more than or equal to 200mm above the annular surface of the mirror plate 9, starting a scanning program, rotating the first support arm 3 around the main shaft 2 at an angular speed of 10 degrees/S, acquiring size and defect information of the mirror plate 9 by the three-dimensional laser sensor 7, transmitting the information back to the controller 8, and automatically generating a processing track.
S4, the telescopic arm 5 acts to drive the phased array ultrasonic transducer 6 and the three-dimensional laser sensor 7 to move downwards, and when the three-dimensional laser sensor 7 detects that the phased array ultrasonic transducer 6 is 0.5-1.5 mm away from the mirror plate 9, the telescopic arm 5 stops stretching and locks the stretching amount.
S5, grinding is started, grinding agent is filled into the mirror plate 9 through the filling head 63, meanwhile, the power supply of the phased array ultrasonic transducer device 6 is started, under the allocation of the controller 8, sine waves generated by the superimposed ultrasonic transducer 62 matrix and from the center to the periphery are controlled, and the grinding agent is excited to vibrate at a high speed to grind the mirror plate 9.
S6, the first motor 23 and the second motor 34 change the angles of the first support arm 3 and the second support arm 4 according to the processing track to realize the full coverage of the surface of the mirror plate 9; wherein, when grinding mirror plate 9, three-dimensional laser sensor 7 real-time supervision mirror plate 9 surface quality, after mirror plate 9 surface defect disappeared, the device stop work, and first motor 23 and second motor 34 and flexible arm 5 drive phased array ultrasonic transducer 6 and three-dimensional laser sensor 7 rise to initial position.
Claims (10)
1. An ultrasonic grinding device for a mirror plate, characterized in that: including base (1), main shaft (2), first support arm (3), second support arm (4), flexible arm (5) and phased array ultrasonic transduction device (6), install main shaft (2) on base (1) vertically, the upper end pivoted of main shaft (2) installs first support arm (3), first support arm (3) keep away from one end pivoted of main shaft (2) installs second support arm (4), and flexible arm (5) are installed to one end of second support arm (4) keep away from first support arm (3), and install the lower extreme of flexible arm (5) phased array ultrasonic transduction device (6), when grinding, phased array ultrasonic transduction device (6) and mirror plate (9) interval a distance of grinding.
2. An ultrasonic grinding apparatus for a mirror plate according to claim 1, wherein: the first support arm (3) is driven by the first motor (23) to rotate around the main shaft (2), the second support arm (4) is driven by the second motor (34) to rotate around the end part of the first support arm (3), and the controller (8) is electrically connected with the first motor (23), the second motor (34), the telescopic arm (5) and the phased array ultrasonic transducer (6).
3. An ultrasonic grinding apparatus for a mirror plate according to claim 1 or 2, characterized in that: the base (1) comprises a bottom plate (11), at least three supporting legs (12) are uniformly distributed on the outer circumference of the bottom plate (11), an adjusting bolt (13) is arranged at one end, far away from the bottom plate (11), of each supporting leg (12), a counterweight (15) is arranged above the bottom plate (11), a main shaft (2) is arranged on the counterweight (15), and a level meter (14) is further arranged on the bottom plate (11).
4. An ultrasonic grinding apparatus for a mirror plate according to claim 2, wherein: the upper end of main shaft (2) has set firmly two first ear seats (21), and the one end that first support arm (3) and main shaft (2) are connected is vertically equipped with first pivot (31), and first pivot (31) pivoted installs two between first ear seat (21), be located fixed first speed reducer (22) of installing on first ear seat (21) at main shaft (2) top, the output shaft and the first pivot (31) of first speed reducer (22) are connected the transmission, first motor (23) are connected the transmission with first speed reducer (22).
5. An ultrasonic grinding apparatus for a mirror plate according to claim 2, wherein: the one end that first support arm (3) and second support arm (4) are connected is equipped with second ear seat (32), and the one end that second support arm (4) and first support arm (3) are connected is equipped with third ear seat (41), and second ear seat (32) are connected through second pivot (42) rotation with third ear seat (41), second pivot (42) and second ear seat (32) fixed connection, second pivot (42) are connected with third ear seat (41) rotation, and fixed mounting has second speed reducer (33) on third ear seat (41), and the output shaft and the second pivot (42) of second speed reducer (33) are connected, second motor (34) are connected the transmission with second speed reducer (33).
6. An ultrasonic grinding apparatus for a mirror plate according to claim 1 or 2, characterized in that: the second support arm (4) is kept away from one end of the first support arm (3) is provided with a sheath (43), the upper end of the telescopic arm (5) is arranged in the sheath (43), and the telescopic arm (5) is a linear motor or an electric push rod.
7. An ultrasonic grinding apparatus for a mirror plate according to claim 1 or 2, characterized in that: the phased array ultrasonic transduction device (6) comprises a fixed seat (61) and a plurality of ultrasonic transducers (62), wherein the ultrasonic transducers (62) are arranged on the lower side of the fixed seat (61) in a matrix mode, and the vibrating ends of the ultrasonic transducers (62) extend out of the bottom of the fixed seat (61).
8. An ultrasonic grinding apparatus for a mirror plate according to claim 1 or 2, characterized in that: the system also comprises a mirror plate identification system, wherein the mirror plate identification system comprises a three-dimensional laser sensor (7) which is arranged on the phased array ultrasonic transduction device (6).
9. An ultrasonic grinding apparatus for a mirror plate according to claim 1 or 2, characterized in that: the phased array ultrasonic transducer is characterized in that a plurality of filling heads (63) for filling grinding agents are further arranged on the phased array ultrasonic transducer device (6), the filling heads (63) are located between adjacent ultrasonic transducers (62), a filling bin (64) is arranged on the upper side of the phased array ultrasonic transducer device (6), the upper end of the filling heads (63) is communicated with the filling bin (64), and a filling connection port (65) is formed in the filling bin (64).
10. A method of using an ultrasonic grinding apparatus for a mirror plate according to any one of claims 1 to 9, comprising the steps of:
s1, placing a contact surface of a mirror plate (9) and a thrust tile on a special pier of the mirror plate, and adjusting the plane of the mirror plate (9) to be horizontal;
s2, hanging the grinding device into an inner ring of the mirror plate (9), and adjusting the base (1) to be horizontal through an adjusting bolt (13) on the base (1);
s3, remotely moving the three-dimensional laser sensor (7) to a position above the annular surface of the mirror plate (9), then starting a scanning program, enabling the first support arm (3) to rotate around the main shaft (2), acquiring size and defect information of the mirror plate (9) by the three-dimensional laser sensor (7), transmitting the information back to the controller (8), and automatically generating a processing track;
s4, the telescopic arm (5) acts to drive the phased array ultrasonic transducer (6) and the three-dimensional laser sensor (7) to move downwards, and when the three-dimensional laser sensor (7) detects that the phased array ultrasonic transducer (6) is 0.5-1.5 mm away from the mirror plate (9), the telescopic arm (5) stops stretching and locks the stretching amount;
s5, grinding is started, grinding agents are filled on the mirror plate (9) through a filling head (63), meanwhile, a power supply of the phased array ultrasonic transducer device (6) is started, sine waves generated by a superimposed ultrasonic transducer (62) matrix and from the center to the periphery are controlled under the allocation of the controller (8), and the grinding agents are excited to vibrate at a high speed to grind the mirror plate (9);
s6, the angles of the first support arm (3) and the second support arm (4) are changed according to the machining track by the first motor (23) and the second motor (34), so that the full coverage of the surface of the mirror plate (9) is realized; the three-dimensional laser sensor (7) monitors the quality of the surface of the mirror plate (9) in real time while grinding the mirror plate (9), when the defect on the surface of the mirror plate (9) disappears, the device stops working, and the first motor (23), the second motor (34) and the telescopic arm (5) drive the phased array ultrasonic wave transduction device (6) and the three-dimensional laser sensor (7) to return to the initial positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310670331.5A CN116748961A (en) | 2023-06-07 | 2023-06-07 | Ultrasonic grinding device and method for mirror plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310670331.5A CN116748961A (en) | 2023-06-07 | 2023-06-07 | Ultrasonic grinding device and method for mirror plate |
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| CN116748961A true CN116748961A (en) | 2023-09-15 |
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| CN202310670331.5A Pending CN116748961A (en) | 2023-06-07 | 2023-06-07 | Ultrasonic grinding device and method for mirror plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117444814A (en) * | 2023-12-25 | 2024-01-26 | 福建华电电力工程有限公司 | Handheld wool ball polishing machine and mirror plate polishing method |
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