US20070066191A1 - Cutting or grinding machine - Google Patents
Cutting or grinding machine Download PDFInfo
- Publication number
- US20070066191A1 US20070066191A1 US11/526,877 US52687706A US2007066191A1 US 20070066191 A1 US20070066191 A1 US 20070066191A1 US 52687706 A US52687706 A US 52687706A US 2007066191 A1 US2007066191 A1 US 2007066191A1
- Authority
- US
- United States
- Prior art keywords
- cutting
- rod
- grinding
- ultrasonic transducer
- grinding rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
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Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Drilling And Boring (AREA)
Abstract
A ultrasonic cutting or grinding machine is composed of an exchangeable cutting or grinding rod, a chuck holding the cutting or grinding rod at a middle portion or rear end thereof, a motor having a rotatable rod, and a transmission rod connecting the chuck and the rotatable rod of the motor, in which the cutting or grinding rod has a ultrasonic transducer on or around its rod in an area between a front end of the rod and a portion in contact with the chuck and in which the ultrasonic transducer is mounted onto the cutting or grinding rod apart from the chuck.
Description
- This application is a continuation-in-part application of U.S. patent application Ser. No. 11/319,203, hereby abandoned, filed Dec. 28, 2005, claiming priority of Japanese Patent Application No. 2005-140338,filed Apr. 11, 2005, and Japanese Patent Application No. 2005-185680, filed May 30, 2005, which applications are hereby incorporated by reference.
- This invention relates to a cutting or grinding machine equipped with a ultrasonic transducer which is favorably employable for processing an article of rigid material such as inorganic glass, silicon, silicon nitride, or hard metal. The invention further relates to a cutting or grinding rod favorably employable for processing an article of rigid material.
- The cutting or grinding machine equipped with a ultrasonic transducer, that is, a ultrasonic cutting or grinding machine, is well known.
-
FIG. 1 illustrates a known ultrasonic cutting machine using a grind stone as a cutting means. Theultrasonic cutting machine 10 comprises: - (1) a rotatable cutting unit composed of:
- a
cutting rod 11 which is composed of aholder rod 11 a and agrind stone 11 b; - a
horn 12 attached to the top of theholder rod 11 a; - a
booster 13 attached to the top of thehorn 12; - a ultrasonic transducer (i.e., ultrasonic vibrator) 14 attached to the top of the
booster 13; and - a
slip ring 15 attached to the top of theultrasonic transducer 14; - (2) a driving unit composed of:
- an
AC spindle motor 16 having arotatable rod 16 a and aservo unit 16 b; and - (3) a housing composed of:
- a
cylindrical wall 17, abearing unit 18 placed between the rotatable cutting unit and thecylindrical wall 17; - and
- (4) a
ultrasonic wave generator 19 equipped with acarbon brush 20 in which the combination of theslip ring 15 and thecarbon brush 20 supplies a ultrasonic energy to theultrasonic transducer 14. - The
ultrasonic cutting machine 10 ofFIG. 1 is operated for cutting a workpiece (not shown) in the following manner: - The
AC spindle motor 16 is activated under control of theservo unit 16 b to rotate therotatable rod 16 a. The cylindrical cutting unit rotates synchronously with the rotation of therotatable rod 16 a under the condition that the cylindrical cutting unit is enclosed and held with thebearing 18. Simultaneously, aultrasonic generator 19 generates and transmits a ultrasonic wave to theultrasonic transducer 14. The ultrasonic vibration produced in theultrasonic transducer 14 is then transmitted to thegrind stone 11 b through thebooster 13,horn 12, and aholder rod 11 a. - U.S. Pat. No. 4,596,171 describes an automatically controlled cutting machine having a reciprocating cutting blade that is translated along a cutting path through a layup of limp sheet material under computer control includes an ultrasonic transducer that establishes standing wave along the length of the blade. The ultrasonic transducer is connected to the blade via a horn. Thus, the relationship of the blade and the ultrasonic transducer of U.S. Pat. No. 4,596,171 is essentially the same as that of
FIG. 1 . - The present inventor studied the known ultrasonic cutting machine and has found that the known ultrasonic cutting machine of
FIG. 1 has problems in that not a small portion of the ultrasonic energy generated in theultrasonic generator 19 is absorbed by thecylindrical wall 17 through thebearing 18 in the course of its transmission toward thegrind stone 11 b. In order to compensate the loss of the ultrasonic power, it is required to use a ultrasonic generator having a large capacity. Moreover, since the ultrasonic energy escaping through the bearing 18 vibrates thebearing 18, the power of the bearing gripping the rotating cylinder unit is weakened, and sometimes the vibration causes breakage of the bearing 18 (holding or gripping means). - Accordingly, it is an object of the invention to provide a ultrasonic cutting or grinding machine that can utilize a generated ultrasonic energy efficiently.
- It is another object of the invention to provide a ultrasonic cutting or grinding machine which can be constructed in a relative small size.
- It is a further object of the invention to provide a ultrasonic cutting or grinding machine that is almost free from decrease of holding power provided by means for holding a cutting or grinding tool.
- The present invention resides in a cutting or grinding machine comprising an exchangeable cutting or grinding rod, a chuck gripping the cutting or grinding rod by a middle portion or rear end thereof, a motor having a rotatable rod, and a transmission rod connecting the chuck and the rotatable rod of the motor, wherein the cutting or grinding rod has a ultrasonic transducer thereon or therearound in an area between a front end of the rod and a portion in contact with the chuck and wherein the ultrasonic transducer is mounted onto the cutting or grinding rod apart from the chuck.
- The invention further resides in a cutting or grinding rod having a ultrasonic transducer thereon or therearound.
-
FIG. 1 illustrates a conventional cutting machine equipped with a ultrasonic transducer. -
FIG. 2 illustrates an example of the cutting or grinding machine according to the invention. -
FIG. 3 illustrates a cutting rod according to the invention. -
FIG. 4 is a schematic view of another example of the cutting or grinding rod according to the invention. -
FIG. 5 is a section of the cutting or grinding rod ofFIG. 4 taken along the line A-A. -
FIG. 6 is a schematic view of a further example of the cutting or grinding rod according to the invention. -
FIG. 7 is a section of the cutting or grinding rod ofFIG. 6 taken along the line A-A. - Each of
FIGS. 8 and 9 shows a section of a still further example of the cutting or grinding rod according to the invention. -
FIG. 10 is a schematic view of a still further example of the cutting or grinding rod according to the invention. -
FIG. 11 is a top view of a still further example of the cutting or grinding rod according to the invention. -
FIG. 12 is a section of the cutting or grinding rod ofFIG. 11 taken along the line A-A. -
FIG. 13 is a schematic view of a still further example of the cutting rod according to the invention. -
FIG. 14 illustrates another example of the cutting or grinding machine according to the invention. -
FIG. 15 illustrates a further example of the cutting or grinding machine according to the invention, in which details of the electric power supply system are shown. -
FIG. 16 is a schematic view of the rotary power transformer employed in the machine ofFIG. 15 . -
FIG. 17 is a cutting or grinding rod employed in the machine ofFIG. 15 . - Preferred embodiments of the cutting or grinding rods employable for manufacturing the cutting or grinding machine of the invention are described below.
- (1) The cutting or grinding rod has the ultrasonic transducer therearound in the form of a continuous or divided ring.
- (2) The cutting or grinding rod has a flange on which the ultrasonic transducer in the form of a continuous or divided ring is arranged.
- (3) The cutting or grinding rod is a rod having a grind stone at its front end.
- (4) The cutting or grinding rod is a drill.
- (5) The cutting or grinding rod is an end mill.
- (6) The cutting or grinding rod comprises a holder rod and a throw-away tip attached to the holder rod.
- (7) The cutting or grinding rod comprises a holder rod and a throw-away tip attached to the holder rod, and the ultrasonic transducer is placed on the throw-away tip.
- The present invention is further described by referring to the figures shown in the attached drawings.
-
FIG. 2 illustrates an example of the cutting or grinding machine according to the invention. - In
FIG. 2 , the cutting or grindingmachine 20 of the invention comprises an exchangeable cutting or grindingrod 21, achuck 22 gripping the cutting or grindingrod 21 by its middle portion or its rear end, amotor 23 having arotatable rod 24, and atransmission rod 25 connecting thechuck 22 and therotatable rod 24 of themotor 23. The cutting or grindingrod 21 has aultrasonic transducer 26 thereon in an area between afront end 27 of therod 21 and aportion 28 in contact with thechuck 22. Thetransmission rod 25 is held with abearing 29 so that therod 25 can rotate stably around its axis. Around thetransmission rod 25, there is provided aslip ring 31 to which an electric power is transmitted from anelectric power source 31. A rotor (not shown) provided around thetransmission rod 25 receives the electric power from theslip ring 30 and then transmits it to the ultrasonic transducer 37 through an electric line (not shown) arranged along thetransmission rod 25. There is provided aworkpiece 32 below the cutting or grindingrod 21. The workpiece is placed on a table 33. - The cutting or grinding procedure can be carried out in the following manner using the cutting or grinding machine of
FIG. 2 according to the invention. - When the
motor 23 is activated and a rotation energy is applied to therotatable rod 24, thetransmission rod 25 connected to therotatable rod 24 rotates synchronously within thebearing 29. Thechuck 22 provided to the bottom end (i.e., front end) of thetransmission rod 25 also rotates synchronously together with the cutting or grindingrod 21 which is firmly gripped and held with thechuck 22. Simultaneously, theultrasonic generator 31 is activated to generate and transmit a ultrasonic energy to theslip ring 30. The ultrasonic energy received by theslip ring 30 is then transmitted to theultrasonic transducer 26. Theultrasonic transducer 26 generates ultrasonic vibration along the length of the cutting or grindingrod 21. The ultrasonic vibration generated in theultrasonic transducer 26 is transmitted directly and almost predominantly to the front end (i.e., bottom end) of therod 21. Only a small amount of the generated ultrasonic vibration is transmitted to theposition 28 in contact with thechuck 22. Accordingly, the generated ultrasonic vibration is very efficiently utilized to vibrate the cutting or grindingrod 21. Further, since only a small amount of the ultrasonic vibration is transmitted to thechuck 22, the holding power provided to the cutting or grindingrod 21 by thechuck 22 hardly decreases. Furthermore, damage of the chuck due to the transmitted ultrasonic vibration hardly occurs. -
FIG. 3 illustrates a cutting rod according to the invention. - The cutting
rod 21 ofFIG. 3 is an end mill, and theend mill 21 has aultrasonic transducer 26 therearound in the middle portion. -
FIG. 4 is a schematic view of another example of the cutting or grinding rod according to the invention, andFIG. 5 is a section of the cutting or grinding rod ofFIG. 4 taken along the line A-A. - The cutting or grinding
rod 41 ofFIG. 4 is a grinding rod having a grind stone at the front end (i.e., at the bottom) of the rod. The grindingrod 41 has aflange 41 a. InFIG. 4 , aultrasonic transducer 46 is provided around therod 41. The ultrasonic transducer can be provided around theflange 41 a. Otherwise, one ultrasonic transducer is provided around the grindingrod 41 and another ultrasonic transducer is provided around theflange 41 a. -
FIG. 6 is a schematic view of an example of the cutting or grinding rod according to the invention, and FIG. 7 is a section of the cutting or grinding rod ofFIG. 6 taken along the line A-A. - In
FIGS. 6 and 7 , the cutting or grindingrod 60 is a grindingrod 61 having a grind stone at its bottom end. The grindingrod 61 is in the form of a three-armed tuning fork having aflange portion 61 a. On theflange portion 61 a, there is placed aultrasonic transducer 66 in the form of ring. The grindingrod 61 is gripped with a chuck by its upper portion. - The grinding
rod 60 can be made of arod portion 61 b and aflange portion 61 a, and one of these portion such as theflange portion 61 a can has theultrasonic transducer 66, as is shown inFIG. 8 . Otherwise, theultrasonic transducer 66 can be placed not only on theflange portion 61 a but also on therod portion 61 b, as is shown inFIG. 9 . - The ultrasonic transducer can be in the form of a ring as shown in FIGS. 3 to 9. Otherwise, the ultrasonic transducer can be in the form of a divided ring, as is shown in
FIG. 10 . InFIG. 10 , a ultrasonic transducer is divided into fourpieces rod 101. -
FIGS. 11 and 12 illustrate an example of the grindingrod 111 having agrind stone 111 b at the bottom (front end) and anextended portion 111 c. Fourultrasonic transducers 116 are placed on theextended portion 111 c. -
FIG. 13 indicates a cuttingrod 141 having a pair of cutting throw-awaytips 141 d at the bottom (front end) and aultrasonic transducer 146 in the form of ring. The pair of throw-away tips are preferably arranged symmetrically about the rotational axis of therod 141. - The electric power supply to the ultrasonic transducer on the cutting or grinding rod can be supplied by means of a rotary power transformer, as is shown in FIG. 14.
FIG. 14 is essentially the same asFIG. 2 , except that the electric power supply system is replaced with a rotary power transformer consisting of an electricpower supplying unit 141 and an electricpower receiving unit 142 and that the grinding rod is replaced with the grinding unit ofFIGS. 6 and 7 . -
FIG. 15 illustrates a further example of the cutting or grinding machine according to the invention, in which details of the electric power supply system are shown. The cutting or grinding machine is essentially the same as the machine ofFIG. 14 which employs a rotary power transformer for electric energy supply. A schematic view of the rotary power transformer employed in the machine ofFIG. 15 is seen inFIG. 16 . A cutting or grinding tool employed in the machine ofFIG. 15 is seen inFIG. 17 . - In
FIG. 15 , the cutting or grindingmachine 20 of the invention comprises an exchangeable cutting or grindingrod 21, achuck 22 gripping the cutting or grindingrod 21 by its middle portion or its rear end, amotor 23 having arotatable rod 24, and atransmission rod 25 connecting thechuck 22 and therotatable rod 24 of themotor 23. The cutting or grindingrod 21 has aultrasonic transducer 26 thereon in an area between afront end 27 of therod 21 and aportion 28 in contact with thechuck 22. Theultrasonic transducer 26 is free from contact with thechuck 22. Thetransmission rod 25 is held with abearing 29 so that therod 25 can rotate stably around its axis. Under thetransmission rod 25, there is provided a rotary power transformer consisting of an electricpower supplying unit 141 and an electricpower receiving unit 142. An electric power is supplied from apower source 31 to the electricpower receiving unit 142 through the electricpower supplying unit 141. The electric power is then transmitted to theultrasonic transducer 26 through anelectric line 35 arranged along the cutting or grindingrod 21. There is provided aworkpiece 32 below the cutting or grindingrod 21. The workpiece is placed on a table 33.
Claims (15)
1. A cutting or grinding machine comprising an exchangeable cutting or grinding rod, a chuck gripping the cutting or grinding rod by a middle portion or rear end thereof, a motor having a rotatable rod, and a transmission rod connecting the chuck and the rotatable rod of the motor, wherein the cutting or grinding rod has a ultrasonic transducer thereon or therearound in an area between a front end of the rod and a portion in contact with the chuck and wherein the ultrasonic transducer is mounted onto the cutting or grinding rod apart from the chuck.
2. The cutting or grinding machine of claim 1 , wherein the cutting or grinding rod has the ultrasonic transducer therearound in the form of a continuous or divided ring.
3. The cutting or grinding machine of claim 1 , wherein the cutting or grinding rod has a flange on which the ultrasonic transducer in the form of a continuous or divided ring is arranged.
4. The cutting or grinding machine of claim 1 , wherein the cutting or grinding rod is a rod having a grind stone at a front end thereof.
5. The cutting or grinding machine of claim 1 , wherein the cutting or grinding rod is a drill.
6. The cutting or grinding machine of claim 1 , wherein the cutting or grinding rod is an end mill.
7. The cutting or grinding machine of claim 1 , wherein the cutting or grinding rod comprises a holder rod and a throw-away tip attached to the holder rod.
8. The cutting or grinding machine of claim 7 , wherein the ultrasonic transducer is placed on the throw-away tip.
9. A cutting or grinding rod having a ultrasonic transducer thereon or therearound.
10. The cutting or grinding rod of claim 9 , wherein the ultrasonic transducer in the form of a continuous or divided ring is placed around the rod.
11. The cutting or grinding rod of claim 9 , wherein the rod has a grind stone at a front end thereof.
12. The cutting or grinding rod of claim 9 , wherein the cutting or grinding rod is a drill.
13. The cutting or grinding rod of claim 9 , wherein the rod is an end mill.
14. The cutting or grinding rod of claim 9 , wherein the rod comprises a holder rod and a throw-away tip attached to the holder rod.
15. The cutting or grinding rod of claim 14 , wherein the ultrasonic transducer is placed on the throw-away tip.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/526,877 US20070066191A1 (en) | 2005-04-11 | 2006-09-26 | Cutting or grinding machine |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005140338 | 2005-04-11 | ||
JP2005-140338 | 2005-04-11 | ||
JP2005-185680 | 2005-05-30 | ||
JP2005185680 | 2005-05-30 | ||
US11/319,203 US20060229004A1 (en) | 2005-04-11 | 2005-12-28 | Cutting or grinding machine |
US11/526,877 US20070066191A1 (en) | 2005-04-11 | 2006-09-26 | Cutting or grinding machine |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/319,203 Continuation-In-Part US20060229004A1 (en) | 2005-04-11 | 2005-12-28 | Cutting or grinding machine |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070066191A1 true US20070066191A1 (en) | 2007-03-22 |
Family
ID=37083728
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/319,203 Abandoned US20060229004A1 (en) | 2005-04-11 | 2005-12-28 | Cutting or grinding machine |
US11/526,877 Abandoned US20070066191A1 (en) | 2005-04-11 | 2006-09-26 | Cutting or grinding machine |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/319,203 Abandoned US20060229004A1 (en) | 2005-04-11 | 2005-12-28 | Cutting or grinding machine |
Country Status (4)
Country | Link |
---|---|
US (2) | US20060229004A1 (en) |
JP (1) | JP4856650B2 (en) |
TW (1) | TW200635701A (en) |
WO (1) | WO2006109366A1 (en) |
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US20090185876A1 (en) * | 2008-01-21 | 2009-07-23 | Grain Electronics, Inc. | Glass working apparatus and glass working method using the same |
US20110000231A1 (en) * | 2009-07-01 | 2011-01-06 | Mccormick Stephen A | Method and apparatus for ultrasonic freezing |
US20110268516A1 (en) * | 2010-04-29 | 2011-11-03 | Edison Welding Institute, Inc. | Ultrasonic machining assembly for use with portable devices |
CN102490088A (en) * | 2011-11-17 | 2012-06-13 | 北京理工大学 | Three-dimensional spiral line grinding method through ultrasonic vibration |
CN105149198A (en) * | 2015-06-30 | 2015-12-16 | 杭州电子科技大学 | Compound vibration cutting device and switching method |
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CN110091222A (en) * | 2019-05-08 | 2019-08-06 | 北京理工大学 | A kind of method for drilling of pair of SiCp/Al composite material ultrasonic vibration assistant grinding |
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WO2006114919A1 (en) * | 2005-04-25 | 2006-11-02 | Kazumasa Ohnishi | Cutting or grinding machine |
JP2010240745A (en) * | 2007-08-13 | 2010-10-28 | Kazumasa Onishi | Ultrasonic rotary working machine |
US8601927B2 (en) * | 2009-11-30 | 2013-12-10 | Geiss Ag | Device for ultrasonic machining, machine tool and machine tool apparatus |
DE102010048638B4 (en) * | 2010-07-16 | 2017-10-05 | Sauer Ultrasonic Gmbh | Machine tool, workpiece machining process |
FR2993168B1 (en) * | 2012-07-16 | 2014-08-22 | Satelec Soc | ULTRASONIC SURGICAL MICROMOTOR |
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DE102013223799A1 (en) | 2013-08-22 | 2015-02-26 | Gühring KG | SHANK |
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TW201632272A (en) * | 2015-03-04 | 2016-09-16 | 中原大學 | System of detection and transmission of ultrasonic manufacturing |
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WO2017107832A1 (en) * | 2015-12-22 | 2017-06-29 | 山东华云机电科技有限公司 | Ultrasonic machining method for improving abradability of wheel of locomotive, and applications |
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US20090185876A1 (en) * | 2008-01-21 | 2009-07-23 | Grain Electronics, Inc. | Glass working apparatus and glass working method using the same |
US20110000231A1 (en) * | 2009-07-01 | 2011-01-06 | Mccormick Stephen A | Method and apparatus for ultrasonic freezing |
US20110268516A1 (en) * | 2010-04-29 | 2011-11-03 | Edison Welding Institute, Inc. | Ultrasonic machining assembly for use with portable devices |
US8905689B2 (en) * | 2010-04-29 | 2014-12-09 | Edison Welding Institute | Ultrasonic machining assembly for use with portable devices |
CN102490088A (en) * | 2011-11-17 | 2012-06-13 | 北京理工大学 | Three-dimensional spiral line grinding method through ultrasonic vibration |
CN105149198A (en) * | 2015-06-30 | 2015-12-16 | 杭州电子科技大学 | Compound vibration cutting device and switching method |
CN107835723A (en) * | 2015-07-08 | 2018-03-23 | 萨奥有限公司 | Equipment for producing the ultrasonic vibration of instrument and measuring vibration parameters |
CN110091222A (en) * | 2019-05-08 | 2019-08-06 | 北京理工大学 | A kind of method for drilling of pair of SiCp/Al composite material ultrasonic vibration assistant grinding |
CN112025445A (en) * | 2020-08-25 | 2020-12-04 | 吉林建筑大学 | Cutting, grinding and machining integrated device for wall plastering and cleaning |
Also Published As
Publication number | Publication date |
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TW200635701A (en) | 2006-10-16 |
JP4856650B2 (en) | 2012-01-18 |
US20060229004A1 (en) | 2006-10-12 |
JP2008535667A (en) | 2008-09-04 |
WO2006109366A1 (en) | 2006-10-19 |
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