CN112123033B - Ultrasonic vibration auxiliary grinding wheel grinding device and method for inner hole groove - Google Patents
Ultrasonic vibration auxiliary grinding wheel grinding device and method for inner hole groove Download PDFInfo
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- CN112123033B CN112123033B CN202010949401.7A CN202010949401A CN112123033B CN 112123033 B CN112123033 B CN 112123033B CN 202010949401 A CN202010949401 A CN 202010949401A CN 112123033 B CN112123033 B CN 112123033B
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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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
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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
- B24B27/00—Other grinding machines or devices
- B24B27/0092—Grinding attachments for lathes or the like
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
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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
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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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/48—Single-purpose machines or devices for grinding walls of very fine holes, e.g. in drawing-dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention belongs to the technical field of efficient, high-quality and high-precision polishing of the wall surface of an inner hole groove of a revolving body part, and particularly relates to an ultrasonic vibration auxiliary grinding wheel grinding device and method for the inner hole groove. The grinding system comprises a lathe, an inner hole groove revolving body part and an ultrasonic vibration auxiliary grinding wheel grinding system, wherein a three-jaw chuck of the lathe is used for fixing the inner hole groove revolving body part; the tool rest system of the lathe is used for fastening the ultrasonic vibration auxiliary grinding wheel grinding system; the ultrasonic vibration auxiliary grinding wheel system comprises an ultrasonic generator, a piezoelectric transducer, an amplitude transformer, a shell, an adjusting rear seat, an adjusting shell, an adjusting cushion block, a grinding wheel connecting rod, a grinding wheel and a blind hole cushion block. The invention overcomes the defects of high temperature, large grinding force and easy generation of vibration and noise of the traditional grinding wheel for grinding the inner hole groove, and the obtained surface quality and the processing efficiency are higher.
Description
Technical Field
The invention belongs to the technical field of efficient, high-quality and high-precision polishing of the wall surface of an inner hole groove of a revolving body part, and particularly relates to an ultrasonic vibration auxiliary grinding wheel grinding device and method for the inner hole groove.
Background
The inner hole groove revolving body parts such as a hydraulic cylinder, a pressure increasing rod, a brake, an internal combustion engine, a compressor piston and the like are widely applied to the industrial fields of aerospace, vehicles, ships, information electronic technology and the like. The inner hole groove is a special geometric shape of the inner surface of a revolving body part, the groove width is 5-30mm, the groove depth is 10-20mm, most of materials are 40Cr, 45Cr, 30CrMnSi and the like with higher hardness, and the inner hole groove becomes a big problem in surface finishing processing of high-performance parts. Surface defects on the side walls and bottom surface of the grooves of the inner bore greatly affect the lubrication, surface quality, life and reliability of the product, and therefore must be precisely polished before use.
The conventional polishing method for the inner hole groove mainly comprises manual polishing, grinding wheel grinding, magnetic grinding tool polishing, ultrasonic polishing and the like, wherein the manual polishing is the most common polishing method. The manual polishing uses abrasive paper to repeatedly rub the defects of the groove wall, so that the polishing effect on the side wall of the groove is good, and the polishing efficiency on the bottom of the groove is low. The grinding wheel is adopted to grind the inner hole groove, so that the processing efficiency is high, and the processed groove has higher profile precision. Zhengzhou city diamond precision manufacturing limited company (CN 201910228146.4) discloses a grinding wheel grinding device, a machine tool and a machining method of an inner hole groove. The method uses a grinding arm which axially extends into a hole to be machined to grind and machine a groove through a transmission mechanism. However, when the grinding wheel grinds the groove, the grinding temperature is high, the grinding force is large, and vibration and noise are easily generated, thereby damaging the surface quality of the groove. The magnetic grinding tool polishing is to utilize magnetic poles to adsorb grinding materials to form magnetic brushes and carry out magnetic grinding processing on groove walls, and can simultaneously realize effective removal of the groove side walls and the groove bottom, but the method has the advantages of small application range, long processing time and low processing efficiency, and is difficult to apply in large-scale industry. Shandonghua cloud electro-mechanical technology, inc. (CN201310373981. X) invented a device for ultrasonic machining of a hole and groove surface, which utilizes a transverse body vibration transducer to enable a tool head to generate high-frequency vibration to the side surface of a hole and groove. However, this machining method is mainly suitable for inner holes or grooves with small workpiece sizes, and it is difficult to precisely polish inner hole grooves of revolving body parts.
Disclosure of Invention
The invention provides an ultrasonic vibration auxiliary grinding wheel grinding device and method for an inner hole groove, and aims to solve the problems of low polishing efficiency, poor surface quality, long processing time and the like of the inner hole groove of the conventional revolving body part.
The invention adopts the following technical scheme: an ultrasonic vibration auxiliary grinding wheel grinding processing device for an inner hole groove comprises a lathe, an inner hole groove revolving body part and an ultrasonic vibration auxiliary grinding wheel grinding system, wherein a three-jaw chuck of the lathe is used for fixing the inner hole groove revolving body part; the tool rest system of the lathe is used for fastening the ultrasonic vibration auxiliary grinding wheel grinding system; the ultrasonic vibration auxiliary grinding system for the grinding wheel comprises an ultrasonic generator, a piezoelectric transducer, an amplitude transformer, a shell, an adjusting rear seat, an adjusting shell, an adjusting cushion block, a grinding wheel connecting rod, a grinding wheel and a blind hole cushion block, wherein the ultrasonic generator is connected with the piezoelectric transducer through a lead; one end of the adjusting rear seat is connected with the small end of the amplitude transformer through threads, and the other end of the adjusting rear seat is connected with the adjusting shell through threads; adjusting a through hole with a laryngeal knot in the rear seat; the adjusting rear seat and the adjusting shell are internally provided with adjusting cushion blocks; the adjusting cushion block fixes the grinding wheel connecting rod along with the thread fastening action of the adjusting rear seat and the adjusting shell; a blind hole cushion block is welded at one end of the grinding wheel connecting rod, is arranged at the throat junction of the adjusting rear seat and is fixed under the extrusion of the adjusting cushion block; the other end of the grinding wheel connecting rod penetrates through the adjusting cushion block to be connected with a grinding wheel.
The high-precision displacement sensor penetrates through the piezoelectric transducer, the amplitude transformer and the through hole of the shell to be connected with the blind hole cushion block through magnetic force; the data analyzer is connected with the high-precision displacement sensor through a lead and is used for monitoring the radial and axial displacement of the grinding wheel connecting rod.
Further, the radial distance between the outer diameter of the grinding wheel and the groove bottom surface of the inner hole groove rotary parthShould be the particle size of the abrasive grainsrAn integer multiple of the number of the first and second,h=nrwhereinnIs a positive integer; the axial distance between the width of the grinding wheel and the side wall of the groove of the inner hole groove revolving body part is 1 to 2mms。
Furthermore, the piezoelectric transducer, the amplitude transformer, the shell, the adjusting rear seat, the adjusting shell and the grinding wheel keep axial symmetry.
Furthermore, the adjusting cushion block can move slightly in the adjusting backseat and the adjusting shell to fix the grinding wheel connecting rods with different sizes.
Furthermore, the outer surface of the shell is welded with an extension plate which is used for being connected with a tool rest system of a lathe through bolts.
An application method of an inner hole groove ultrasonic vibration auxiliary grinding wheel grinding device comprises the following steps.
S100, fixing the inner hole groove rotary part on a three-grab chuck of a lathe, and fixing the ultrasonic vibration auxiliary grinding wheel grinding system on a tool rest system of the lathe.
S200, assembling a grinding wheel, adjusting a grinding wheel connecting rod through an adjusting shell, an adjusting cushion block and an adjusting rear seat, and fixing the grinding wheel.
S300, turning on an ultrasonic generator, adjusting the ultrasonic frequency and the amplitude, and ensuring that the ultrasonic frequency is the same as or similar to the natural frequency of the ultrasonic vibration auxiliary grinding wheel grinding system so as to bring the grinding wheel into an optimal resonance state.
S400, starting the lathe, and adjusting the grinding wheel to the position near the inner hole groove.
S500, starting the high-precision displacement sensor, and monitoring the radial distance between the grinding wheel and the inner hole groove by using a data analyzerhAnd axial spacingsAnd the tool rest system of the lathe is utilized for micro-adjustment.
S600, applying rotary motion to the inner hole groove rotary part, and performing ultrasonic vibration assisted grinding of the inner hole groove by using a grinding wheel to finish precise polishing of the bottom surface of the inner hole groove.
S700, adjusting the axial distance between the grinding wheel and the inner hole groove by using a high-precision displacement sensor and a data analyzersSo that the grinding wheel is contacted with the two side walls of the inner hole groove in sequence, and the polishing of the side walls of the inner hole groove can be finished.
And S800, the high-efficiency and high-quality polishing process of the inner hole groove can be realized by adjusting the ultrasonic frequency and amplitude and the rotating motion speed of the workpiece for many times.
S900, when the grinding wheel is replaced every time, the resonant frequency of the ultrasonic vibration auxiliary grinding wheel grinding system needs to be adjusted again.
S1000, after finishing the machining, repeating the steps for the inner hole grooves which do not meet the requirements for multiple times until finishing the efficient polishing of the inner hole grooves.
Compared with the prior art, the invention has the following beneficial effects: 1) The ultrasonic vibration assisted grinding wheel can generate good polishing effect on the side wall and the bottom surface of the inner hole groove, and the processing range is wider; 2) The defects that the temperature is high, the grinding force is large and vibration and noise are easy to generate in the traditional grinding wheel grinding of the inner hole groove are overcome, and the available surface quality and the processing efficiency are higher; 3) The high-precision displacement sensor monitors the radial and axial displacement of the grinding wheel in the inner hole groove through the data analyzer, so that the processing precision is higher; 4) The high-precision displacement sensor is arranged in the through hole, so that the space size of the device is saved, and a grinding wheel can conveniently extend into the groove; 5) The grinding wheel has strong adaptability and is convenient to replace.
Drawings
FIG. 1 is a schematic view of the principle structure of the apparatus of the present invention;
FIG. 2 is an ultrasonic vibration assisted wheel grinding system;
FIG. 3 is a schematic view of a grinding wheel for machining an inner hole groove;
in the figure: the method comprises the following steps of 1-a lathe, 101-a three-jaw chuck, 102-a tool rest system, 2-an inner hole groove revolving body part, 3-an ultrasonic generator, 4-a piezoelectric transducer, 5-an amplitude transformer, 501-an amplitude transformer flange, 6-a shell, 7-an adjusting rear seat, 8-an adjusting shell, 9-an adjusting cushion block, 10-a grinding wheel connecting rod, 11-a grinding wheel, 12-a blind hole cushion block, 13-a high-precision displacement sensor and 14-a data analyzer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The ultrasonic vibration auxiliary grinding wheel grinding processing device for the inner hole groove comprises a lathe 1, an inner hole groove rotary part 2 and an ultrasonic vibration auxiliary grinding wheel grinding system.
The three-jaw chuck 101 of the lathe 1 is used for fixing the inner hole groove revolving body part 2; the tool post system 102 of the lathe 1 is used to secure an ultrasonic vibration assisted grinding system.
The ultrasonic vibration assisted grinding system for the grinding wheel comprises an ultrasonic generator 3, a piezoelectric transducer 4, an amplitude transformer 5, a shell 6, an adjusting rear seat 7, an adjusting shell 8, an adjusting cushion block 9, a grinding wheel connecting rod 10, a grinding wheel 11, a blind hole cushion block 12, a high-precision displacement sensor 13 and a data analyzer 14.
The ultrasonic generator 3 is connected with the piezoelectric transducer 4 through a lead; the piezoelectric transducer 4 is connected with the large end of the amplitude transformer 5 through a double-end stud; the outer surface of the amplitude transformer 5 is also provided with a flange plate 501, and the flange plate 501 is connected with the shell 6 through bolts; the outer surface of the shell 6 is welded with a protruding plate for bolting with a tool rest system 102 of the lathe 1.
The piezoelectric transducer 4, the amplitude transformer 5 and the shell 6 are provided with through holes with equal diameter.
The small end of the amplitude transformer 5 is provided with an internal thread; one end of the adjusting rear seat 7 is connected with the small end of the amplitude transformer 5 through threads; the other end of the adjusting rear seat 7 is connected with the adjusting shell 8 through threads; the inside of the adjusting rear seat 7 is a through hole and is provided with a laryngeal knot; the adjusting cushion blocks 9 are also arranged in the adjusting rear seat 7 and the adjusting shell 8; the adjusting cushion block 9 fixes the grinding wheel connecting rod 10 along with the screw fastening action of the adjusting rear seat 7 and the adjusting shell 8; a blind hole cushion block 12 is welded at one end of the grinding wheel connecting rod 10; the blind hole cushion block 12 is arranged at the throat of the adjusting rear seat 7 and is fixed under the extrusion of the adjusting cushion block 9; the other end of the grinding wheel connecting rod 10 penetrates through the adjusting cushion block 9 to be connected with a grinding wheel 11 through a bolt.
The adjusting cushion block 9 can move slightly in the adjusting rear seat 7 and the adjusting shell 8 to fix the grinding wheel connecting rods 10 with different sizes;
the piezoelectric transducer 4, the amplitude transformer 5, the shell 6, the adjusting rear seat 7, the adjusting shell 8 and the grinding wheel 11 keep axial symmetry;
radial distance between the outer diameter of the grinding wheel 11 and the groove bottom surface of the inner hole groove revolving body part 2hShould be the grain size of the abrasive particlesrAn integer multiple of the number of the first and second,h=nrwhereinnIs a positive integer; the width of the grinding wheel 11 and the side wall of the groove of the inner hole groove rotary part 2 should be left with an axial distance of 1 to 2mms。
The high-precision displacement sensor 13 penetrates through holes of the piezoelectric transducer 4, the amplitude transformer 5 and the shell 6 to be connected with the blind hole cushion block 12 through magnetic force; the data analyzer 14 is connected with the high-precision displacement sensor 13 through a lead and is used for monitoring the radial and axial displacements of the grinding wheel connecting rod 10.
An application method of an inner hole groove ultrasonic vibration auxiliary grinding wheel grinding device comprises the following steps.
S100, fixing the inner hole groove rotary part 2 on a three-grab chuck 101 of the lathe 1, and fixing the ultrasonic vibration auxiliary grinding wheel grinding system on a tool rest system 102 of the lathe 1.
S200, assembling a grinding wheel 11, adjusting a wheel connecting rod 10 through an adjusting shell 8, an adjusting cushion block 9 and an adjusting rear seat 7, and fixing the grinding wheel 11.
S300, turning on the ultrasonic generator 3, adjusting the ultrasonic frequency and the amplitude, and ensuring that the ultrasonic frequency is the same as or similar to the natural frequency of the ultrasonic vibration auxiliary grinding wheel grinding system so as to bring the grinding wheel into an optimal resonance state
S400, starting the lathe 1, and adjusting the grinding wheel 11 to a position near the inner hole groove 201.
S500, starting the high-precision displacement sensor 13, and monitoring the radial distance between the grinding wheel 11 and the inner hole groove 201 by using the data analyzer 14hAnd axial spacingsAnd fine adjustment is performed by the tool rest system 102 of the lathe 1.
S600, applying rotary motion to the inner hole groove rotary part 2, and performing ultrasonic vibration assisted grinding of the inner hole groove by using a grinding wheel to finish precise polishing of the bottom surface of the inner hole groove 201.
S700, adjusting the axial distance between the grinding wheel 11 and the inner hole groove 201 by using the high-precision displacement sensor 13 and the data analyzer 14sSo that the grinding wheel 11 contacts with the two side walls of the inner hole groove in sequence, and the polishing of the side walls of the inner hole groove 201 can be completed.
S800, the high-efficiency and high-quality polishing process of the inner hole groove 201 can be realized by adjusting the ultrasonic frequency and amplitude and the workpiece rotating speed for multiple times.
S900, when the grinding wheel 11 is replaced every time, the resonant frequency of the ultrasonic vibration auxiliary grinding wheel grinding system needs to be adjusted again.
S1000, after finishing the machining, repeating the steps for the inner hole grooves 201 which do not meet the requirements for multiple times until finishing the efficient polishing of the inner hole grooves.
Claims (5)
1. The utility model provides an hole slot ultrasonic vibration assists emery wheel abrasive machining device which characterized in that: the grinding system comprises a lathe (1), an inner hole groove revolving body part (2) and an ultrasonic vibration auxiliary grinding wheel grinding system, wherein a three-jaw chuck (101) of the lathe (1) is used for fixing the inner hole groove revolving body part (2); the tool rest system (102) of the lathe (1) is used for fastening the ultrasonic vibration auxiliary grinding wheel grinding system; the ultrasonic vibration auxiliary grinding wheel system comprises an ultrasonic generator (3), a piezoelectric transducer (4), an amplitude transformer (5), a shell (6), an adjusting rear seat (7), an adjusting shell (8), an adjusting cushion block (9), a grinding wheel connecting rod (10), a grinding wheel (11) and a blind hole cushion block (12), wherein the ultrasonic generator (3) is connected with the piezoelectric transducer (4) through a lead, the piezoelectric transducer (4) is arranged in the shell (6), the piezoelectric transducer (4) is connected with the large end of the amplitude transformer (5), a flange plate (501) is further arranged on the outer surface of the amplitude transformer (5), the flange plate (501) is connected with the shell (6) through bolts, corresponding equal-diameter through holes are formed in the piezoelectric transducer (4), the amplitude transformer (5) and the shell (6), and an internal thread is formed in the small end of the amplitude transformer (5); one end of the adjusting rear seat (7) is connected with the small end of the amplitude transformer (5) through a thread, and the other end of the adjusting rear seat is connected with the adjusting shell (8) through a thread; a through hole is formed in the adjusting rear seat (7), and a throat is arranged in the through hole; an adjusting cushion block (9) is also arranged inside the adjusting rear seat (7) and the adjusting shell (8); the adjusting cushion block (9) fixes the grinding wheel connecting rod (10) along with the screw fastening action of the adjusting rear seat (7) and the adjusting shell (8); one end of the grinding wheel connecting rod (10) is welded with a blind hole cushion block (12), and the blind hole cushion block (12) is arranged at the throat of the adjusting rear seat (7) and is fixed under the extrusion of the adjusting cushion block (9); the other end of the grinding wheel connecting rod (10) penetrates through the adjusting cushion block (9) to be connected with a grinding wheel (11); the high-precision displacement sensor (13) penetrates through the piezoelectric transducer (4), the amplitude transformer (5) and the through hole of the shell (6) and is connected with the blind hole cushion block (12) through magnetic force; the data analyzer (14) is connected with the high-precision displacement sensor (13) through a lead and is used for monitoring the radial and axial displacements of the grinding wheel connecting rod (10);
the use method of the ultrasonic vibration auxiliary grinding wheel grinding device for the inner hole groove comprises the following steps,
s100, fixing the inner hole groove revolving body part (2) on a three-grab chuck (101) of a lathe (1), and fixing an ultrasonic vibration assisted grinding wheel grinding system on a tool rest system (102) of the lathe (1);
s200, assembling a grinding wheel (11), adjusting a wheel connecting rod (10) through an adjusting shell (8), an adjusting cushion block (9) and an adjusting rear seat (7), and fixing the grinding wheel (11);
s300, turning on an ultrasonic generator (3), adjusting the ultrasonic frequency and the amplitude, and ensuring that the ultrasonic frequency is the same as the natural frequency of the ultrasonic vibration auxiliary grinding wheel grinding system so as to bring convenience for the grinding wheel to be in an optimal resonance state;
s400, starting the lathe (1), and adjusting the grinding wheel (11) to a position near the inner hole groove (201);
s500, starting the high-precision displacement sensor (13), and monitoring the radial distance between the grinding wheel (11) and the inner hole groove (201) by using the data analyzer (14)hAnd axial spacingsAnd the tool rest system (102) of the lathe (1) is used for micro-adjustment;
s600, applying rotary motion to the inner hole groove rotary part (2), and performing ultrasonic vibration assisted grinding of the inner hole groove by using a grinding wheel to finish precise polishing of the bottom surface of the inner hole groove (201);
s700, adjusting the axial distance between the grinding wheel (11) and the inner hole groove (201) by using the high-precision displacement sensor (13) and the data analyzer (14)sSo that the grinding wheel (11) is contacted with the two side walls of the inner hole groove in sequence to finish the polishing of the side walls of the inner hole groove (201);
s800, the efficient and high-quality polishing process of the inner hole groove (201) can be realized by adjusting the ultrasonic frequency and amplitude and the workpiece rotating speed for multiple times;
s900, when the grinding wheel (11) is replaced every time, the resonant frequency of the ultrasonic vibration auxiliary grinding wheel grinding system needs to be adjusted again;
s1000, after finishing the machining, repeating the steps for the inner hole grooves (201) which do not meet the requirements for many times until finishing the efficient polishing of the inner hole grooves.
2. The ultrasonic vibration assisted grinding wheel machining device for the inner hole groove as claimed in claim 1, wherein: the radial distance between the outer diameter of the grinding wheel (11) and the groove bottom surface of the inner hole groove revolving body part (2)hShould be the particle size of the abrasive grainsrAn integer multiple of the number of the first and second,h=nrin whichnIs a positive integer; the width of the grinding wheel (11) and the groove side wall of the inner hole groove rotary part (2) are provided with an axial distance of 1 to 2mms。
3. The ultrasonic vibration assisted grinding wheel machining device for the inner hole groove as claimed in claim 2, wherein: the piezoelectric transducer (4), the amplitude transformer (5), the shell (6), the adjusting rear seat (7), the adjusting shell (8) and the grinding wheel (11) keep axial symmetry.
4. The ultrasonic vibration assisted grinding wheel machining device for the inner hole groove as claimed in claim 3, wherein: the adjusting cushion block (9) can move slightly in the adjusting rear seat (7) and the adjusting shell (8) to fix the grinding wheel connecting rods (10) with different sizes.
5. The ultrasonic vibration assisted grinding wheel machining device for the inner hole groove as claimed in claim 4, wherein: the outer surface of the shell (6) is welded with an extending plate which is used for being connected with a tool rest system (102) of the lathe (1) through a bolt.
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| CN113953897B (en) * | 2021-11-10 | 2023-03-28 | 中国航发南方工业有限公司 | Grinding process for thin-wall steel narrow-deep-groove nitrided surface of aircraft engine |
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