CN114833456A - Micro-texture laser processing device for tooth surface of spiral bevel gear - Google Patents

Micro-texture laser processing device for tooth surface of spiral bevel gear Download PDF

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Publication number
CN114833456A
CN114833456A CN202210614455.7A CN202210614455A CN114833456A CN 114833456 A CN114833456 A CN 114833456A CN 202210614455 A CN202210614455 A CN 202210614455A CN 114833456 A CN114833456 A CN 114833456A
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China
Prior art keywords
shaft
laser
bevel gear
spiral bevel
servo motor
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CN202210614455.7A
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CN114833456B (en
Inventor
陈奇
张龙唱
庆振华
侯庆伟
唐查强
王良健
黄丽源
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Hefei University of Technology
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Hefei University of Technology
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B23K26/355—Texturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention discloses a spiral bevel gear tooth surface microtexture laser processing device, which belongs to the field of tooth surface precision processing and comprises the following components: the device can be used for carrying out micro-texture processing on a single tooth surface of the spiral bevel gear by adjusting the position and the angle of the laser on the laser moving sliding table, and can be used for realizing full-tooth-surface processing of the spiral bevel gear by adjusting the position and the angle of the spiral bevel gear on the gear rotating device; in the machining process, a laser beam emitted by a laser always keeps a 15-degree included angle with a tangent line at a machining point of the tooth surface of the spiral bevel gear, so that scraps generated by laser machining can be effectively prevented from being filled into a texture, and the laser machining precision and quality are improved. The technical scheme of the invention has simple structure, is suitable for processing the micro texture of the tooth surface of the spiral bevel gear, has high processing precision, is convenient to operate and has higher practical value.

Description

Micro-texture laser processing device for tooth surface of spiral bevel gear
Technical Field
The invention relates to the field of gear machining, in particular to a spiral bevel gear tooth surface microtexture laser machining device, and belongs to the field of tooth surface precision machining.
Background
The helicopter transmission should have a "dry run" capability of at least 30 minutes, i.e., the transmission should be able to operate for a certain time after a lubrication system failure or loss of lubricant (e.g., a leak of lubricant in the case) so that the helicopter is out of danger. In view of national defense safety and technical blockade, how to improve the dry running capability of a helicopter transmission system is a scientific and technological problem which needs to be completed and autonomously solved urgently. The spiral bevel gear is widely used in a helicopter transmission system and is a main part of failure of the transmission system after dry running working conditions occur. Therefore, the problem of tooth surface lubrication and bearing of the spiral bevel gear under the extreme working conditions of oil lack/oil free and the like is solved, and the method is an important precondition for improving the dry running capability of a helicopter transmission system.
The tooth surface microtexture has good positive effects on improving lubricating conditions, improving abrasion resistance, bearing and the like, and particularly has good functions of reducing friction and resisting abrasion under the 'spent oil condition'. However, because the spiral bevel gear belongs to a space gear, the tooth surface of the spiral bevel gear is a space curved surface, and the spiral bevel gear is difficult to process in a common cutting processing mode, along with the development of short wavelength and short pulse width laser, a laser etching processing technology becomes one of important means for preparing a surface micro-nano texture, but the existing laser marking equipment is still difficult to process the tooth surface of the spiral bevel gear, and therefore a device suitable for processing the spiral bevel gear tooth surface micro-texture needs to be developed.
Patent CN108145396A discloses a method for processing a micro-texture self-lubricating gear, which adopts a mode of compounding a numerical control tool grinder and a laser marking device to process a gear tooth surface micro-texture, and relates to a device mainly comprising the numerical control tool grinder, the laser marking device and a high-pressure gas nozzle. The good flexibility and high precision of the numerical control tool grinding machine are adopted, so that the positioning, clamping and grinding precision, the machining efficiency and the machining quality of the gear to be machined are obviously improved. The method is suitable for processing the tooth surface microtexture of the common straight-tooth cylindrical gear, but is difficult to process the space tooth surface of the spiral bevel gear.
Patent CN111730211A discloses a device on laser beam machining involute roller gear surface, including base, slip table, gear, laser marker and electromagnet, be fixed with on the slip table and be used for driving the lantern ring rolling actuating mechanism on electromagnet, the light that laser marker sent is located the normal line of involute of gear. According to the invention, the lantern ring is controlled by the electric push rod to roll on the electromagnetic chuck, and the laser beam is always vertical to the tangent of the involute cylindrical gear tooth profile when the tooth surface microtexture is processed, so that the structure is simple, and the operation is convenient. However, in the method, because the laser beam is perpendicular to the tooth surface, scraps generated by laser processing are difficult to clean, so that the processing precision is limited, and meanwhile, the device is only used for processing the tooth surface microtexture of the involute cylindrical gear and is not suitable for spiral bevel gears.
Disclosure of Invention
As described above, in order to solve the problem of processing the tooth surface microtexture of the spiral bevel gear, the invention provides a laser processing device for the tooth surface microtexture of the spiral bevel gear, which is applicable to processing the tooth surface microtexture of the spiral bevel gear with different structural parameters, and can effectively prevent chips generated by laser processing from being filled into the texture, thereby achieving high processing precision and quality, simple structure and higher practical value.
The technical scheme of the invention is as follows:
a micro-texture laser processing device for the tooth surface of a spiral bevel gear comprises a rack, a laser moving sliding table, a gear rotating device and a bottom plate; the frame consists of a long beam, a short beam and stand columns, which are connected with each other through outer corner pieces, and the four stand columns are connected with the bottom plate through the outer corner pieces; the laser moving sliding table consists of an X-axis guide rail, an X-axis sliding block, a steering engine, an electric push rod, a laser, a Y-axis sliding block and a Y-axis guide rail, wherein the two X-axis guide rails are respectively arranged below the two long cross beams through bolts, one side of each X-axis guide rail is provided with a servo motor which can drive the X-axis sliding block on the X-axis guide rail to reciprocate, the Y-axis guide rail is connected with the X-axis sliding block through bolts, one side of each Y-axis guide rail is provided with a servo motor which can drive the Y-axis sliding block on the Y-axis guide rail to reciprocate, the steering engine is connected with the Y-axis sliding block through bolts, one side of the steering engine is provided with a connecting shaft, the connecting shaft is provided with a shaft shoulder and a key groove, the shaft end is provided with a threaded hole, the electric push rod is provided with a key groove, the connecting shaft on the steering engine is connected with the shaft hole on the electric push rod through a key, in order to prevent the electric push rod from axially shifting, the connecting shaft end of the steering engine is provided with a gasket and a locking bolt, can be so that electric putter's free rotation through the drive steering wheel, the laser instrument upper end is the square, and four sides are equipped with the screw hole, and the electric putter lower extreme is equipped with the square hole, and the square hole inner wall is equipped with four screw holes, and the laser instrument upper end is installed in electric putter lower extreme square hole to be connected with electric putter through four bolts, can realize the reciprocating motion of laser instrument through adjustment electric putter.
Further, the gear rotating device comprises a left support, a short connecting shaft, a motor rotating frame, a spiral bevel gear, a gear rotating servo motor, a long connecting shaft, a right support, a motor fixing frame, a coupler and a rotating frame servo motor, wherein the left support and the right support are connected with a bottom plate through bolts, the middle part of the left support and the right support are provided with shaft holes, the left end and the right end of the motor rotating frame are respectively provided with four threaded holes, one end of the short connecting shaft and one end of the long connecting shaft are also provided with four threaded holes, one end of the short connecting shaft provided with the threaded holes is connected with the threaded holes of the motor rotating frame through bolts, the other end of the short connecting shaft is connected with the shaft holes in the middle part of the left support, one end of the long connecting shaft provided with the threaded holes is connected with the threaded holes of the motor rotating frame through bolts, the other end of the motor fixing frame is connected with the shaft holes in the middle part of the right support, the motor fixing frame servo motor is installed outside the motor fixing frame through bolts, the long connecting shaft penetrates through a shaft hole in the middle of the right support and is connected with a motor output shaft on a rotating frame servo motor through a shaft coupling, the gear rotating servo motor is connected with a motor rotating frame through a bolt, an output shaft is installed on one side of the gear rotating servo motor, a shaft shoulder and a key groove are formed in the output shaft, a threaded hole is formed in the shaft end, a shaft hole is formed in the spiral bevel gear, the key groove is formed in the shaft hole, the spiral bevel gear is connected with the output shaft on the gear rotating servo motor through a key, a gasket and a locking bolt are installed at the threaded hole in the shaft end of the output shaft of the gear rotating servo motor, the rotating frame servo motor can drive the motor rotating frame to rotate through the shaft coupling, the angle of the spiral bevel gear can be adjusted, the bus of the spiral bevel gear is enabled to be parallel to a bottom plate plane, and the gear rotating servo motor can drive the spiral bevel gear to rotate, and processing each tooth surface is realized.
Furthermore, the gear rotating device is installed below the laser moving sliding table, the gear rotating device is adjusted before the tooth surface micro-texture machining is carried out, so that the spiral bevel gear bus is parallel to the plane of the bottom plate, meanwhile, the laser moving sliding table is adjusted, so that the laser is located above the tooth surface to be machined of the spiral bevel gear, when machining is carried out, a laser beam emitted by the laser always keeps a 15-degree included angle with the tangent line of the tooth surface machining point of the spiral bevel gear, the situation that chips generated by laser machining are filled into the texture can be effectively avoided, and the laser machining precision and quality are further improved.
Compared with the prior art, the device has the advantages that the full-tooth-surface machining of the spiral bevel gear can be realized, the gear can be conveniently replaced, the spiral bevel gears with different structural parameters can be machined, meanwhile, chips generated by laser machining can be effectively prevented from being filled into the texture, and the laser machining precision and quality are further improved. The technical scheme of the invention has simple structure, is suitable for processing the micro texture of the tooth surface of the spiral bevel gear, has high processing precision, is convenient to operate and has higher practical value.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the preferred embodiment of the present invention.
Fig. 2 is an isometric view of a frame provided by the present invention.
Fig. 3 is an isometric view of a laser moving slide provided by the present invention.
Fig. 4 is a front view of the gear rotating device provided by the present invention.
Fig. 5 is an axial view of the gear rotating device provided by the present invention.
Fig. 6 is a front view of the laser operating state provided by the present invention.
Fig. 7 is a partially enlarged front view of the laser in operation according to the present invention.
Fig. 8 is a left side view of the laser operating state provided by the present invention.
In the figure, 1-a rack, 2-a laser moving sliding table, 3-a gear rotating device, 4-a bottom plate, 5-a long beam, 6-a short beam, 7-an upright post, 8-an X-axis guide rail, 9-an X-axis sliding block, 10-a steering engine, 11-an electric push rod, 12-a laser, 13-a Y-axis sliding block, 14-a Y-axis guide rail, 15-a left support, 16-a short connecting shaft, 17-a motor rotating frame, 18-a spiral bevel gear, 19-a gear rotating servo motor, 20-a long connecting shaft, 21-a right support, 22-a motor fixing frame, 23-a coupler and 24-a rotating frame servo motor.
Detailed Description
Before any embodiments are explained in detail, it is to be understood that the disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The disclosure is capable of other embodiments and of being practiced or of being carried out in various ways.
Examples
Referring to fig. 1, this embodiment is a preferred embodiment of the present invention, and provides a microtextured laser processing apparatus for a spiral bevel gear tooth surface, which includes a machine frame 1, a laser moving slide table 2, a gear rotating device 3, and a bottom plate 4; as shown in fig. 2, the frame 1 is composed of a long beam 5, a short beam 6 and upright posts 7, which are connected with each other through external corner pieces, and the four upright posts 7 are connected with the bottom plate through the external corner pieces; as shown in fig. 3, the laser moving sliding table 2 is composed of an X-axis guide rail 8, an X-axis slider 9, a steering engine 10, an electric push rod 11, a laser 12, a Y-axis slider 13 and a Y-axis guide rail 14, wherein the two X-axis guide rails 8 are respectively installed below two long beams 5 through bolts, a servo motor is installed on one side of each X-axis guide rail 8 and can drive the X-axis slider 9 on the X-axis guide rail 8 to reciprocate, the Y-axis guide rail 14 is connected with the X-axis slider 9 through bolts, a servo motor is installed on one side of each Y-axis guide rail 14 and can drive the Y-axis slider 13 on the Y-axis guide rail 14 to reciprocate, the steering engine 10 is connected with the Y-axis slider 13 through bolts, a connecting shaft is installed on one side of the steering engine 10, a shaft shoulder and a key groove are arranged on the connecting shaft, a threaded hole is arranged on the shaft end, a shaft hole is arranged on the electric push rod 11, a key groove is arranged in the shaft hole, the connecting shaft on the steering engine 10 is connected with the shaft hole on the electric push rod 11 through a key, for preventing 11 axial drunkenness of electric putter, at connecting axle head screw hole department installation gasket and locking bolt of steering wheel 10, can be so that electric putter 11's free rotation through drive steering wheel 10, 12 upper ends of laser instrument are the square, and four sides are equipped with the screw hole, 11 lower extremes of electric putter are equipped with the square hole, and the square hole inner wall is equipped with four screw holes, 12 upper ends of laser instrument are installed in 11 lower extreme square holes of electric putter, and be connected with electric putter 11 through four bolts, can realize the reciprocating motion of laser instrument 12 through adjustment electric putter 11.
As shown in fig. 4 and 5, the gear rotating device 3 comprises a left bracket 15, a short connecting shaft 16, a motor rotating frame 17, a spiral bevel gear 18, a gear rotating servo motor 19, a long connecting shaft 20, a right bracket 21, a motor fixing frame 22, a coupler 23 and a rotating frame servo motor 24, wherein the left bracket 15 and the right bracket 21 are connected with the bottom plate 4 through bolts, the middle parts of the left bracket 15 and the right bracket 21 are respectively provided with a shaft hole, the left end and the right end of the motor rotating frame 17 are respectively provided with four threaded holes, one end of the short connecting shaft 16 and one end of the long connecting shaft 20 are also provided with four threaded holes, one end of the short connecting shaft 16 provided with the threaded holes is connected with the threaded holes of the motor rotating frame 17 through bolts, the other end of the short connecting shaft is connected with the shaft hole in the middle part of the left bracket 15, one end of the long connecting shaft 20 provided with the threaded holes is connected with the threaded holes of the motor rotating frame 17 through bolts, and the other end of the long connecting shaft hole in the middle part of the right bracket 21, the motor fixing frame 22 is installed on the outer side of the right support frame 21 through a bolt, the rotating frame servo motor 24 is installed on the outer side of the motor fixing frame 22 through a bolt, the long connecting shaft 20 penetrates through a shaft hole in the middle of the right support frame 21 and is connected with a motor output shaft on the rotating frame servo motor 24 through a coupler 23, the gear rotating servo motor 19 is connected with the motor rotating frame 17 through a bolt, an output shaft is installed on one side of the gear rotating servo motor 19, a shaft shoulder and a key groove are arranged on the output shaft, a threaded hole is formed in the shaft end of the shaft, a shaft hole is formed in the spiral bevel gear 18, a key groove is formed in the shaft hole, the spiral bevel gear 18 and the output shaft on the gear rotating servo motor 19 are connected through a key, in order to prevent the spiral bevel gear 18 from axially moving, a gasket and a locking bolt are installed at the threaded hole of the output shaft end of the gear rotating servo motor 19, and the rotating frame servo motor 24 can drive the motor rotating frame 17 to rotate through the coupler 23, the angle of the spiral bevel gear 18 can be adjusted, the fact that the bus of the spiral bevel gear is parallel to the plane of the bottom plate is guaranteed, the gear rotating servo motor 19 can drive the spiral bevel gear 18 to rotate, and machining of all tooth surfaces is achieved.
In operation, as shown in fig. 1, 6, 7 and 8, the gear rotating device 3 is arranged below the laser moving sliding table 2, before the tooth surface microtexturing processing, the gear rotating device 3 is adjusted to enable the generatrix of the spiral bevel gear 18 to be parallel to the plane of the bottom plate, meanwhile, the laser moving sliding table 2 is adjusted to enable the laser 12 to be positioned above the tooth surface to be processed of the spiral bevel gear 18, in the processing process, the position and the angle of a laser 12 on a laser moving sliding table 2 are adjusted to carry out micro-texture processing on a single tooth surface of the spiral bevel gear 18, in addition, in order to ensure the laser processing precision and quality and avoid the filling of scraps generated by laser processing into the texture, a laser beam emitted by the laser 12 keeps an included angle of 15 degrees with the tangent line at the processing point of the tooth surface of the spiral bevel gear 18 all the time in the processing process, and after finishing machining a single tooth surface, rotating the spiral bevel gear to perform next tooth surface machining until the whole tooth surface machining is finished.
While the preferred embodiments of the invention have been disclosed for the purpose of illustration, it is not intended to be exhaustive or to limit the invention to any precise form or manner described, and it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention, which is defined by the claims and their full scope of equivalents.

Claims (1)

1. A micro-texture laser processing device for the tooth surface of a spiral bevel gear is characterized by comprising a rack (1), a laser moving sliding table (2), a gear rotating device (3) and a bottom plate (4); the machine frame (1) consists of a long crossbeam (5), a short crossbeam (6) and upright posts (7), which are connected with each other through outer corner pieces, and the four upright posts (7) are connected with the bottom plate through the outer corner pieces; the laser moving sliding table (2) consists of an X-axis guide rail (8), an X-axis sliding block (9), a steering engine (10), an electric push rod (11), a laser (12), a Y-axis sliding block (13) and a Y-axis guide rail (14), wherein the two X-axis guide rails (8) are respectively installed below the two long cross beams (5) through bolts, one side of the X-axis guide rail (8) is provided with a servo motor which can drive the X-axis sliding block (9) on the X-axis guide rail (8) to do reciprocating motion, the Y-axis guide rail (14) is connected with the X-axis sliding block (9) through bolts, one side of the Y-axis guide rail (14) is provided with a servo motor which can drive the Y-axis sliding block (13) on the Y-axis guide rail (14) to do reciprocating motion, the steering engine (10) is connected with the Y-axis sliding block (13) through bolts, one side of the steering engine (10) is provided with a connecting shaft shoulder and a key groove, and the shaft end is provided with a threaded hole, the laser comprises an electric push rod (11), wherein a shaft hole is formed in the electric push rod (11), a key groove is formed in the shaft hole, a connecting shaft on a steering engine (10) is in key connection with the shaft hole in the electric push rod (11), in order to prevent the electric push rod (11) from moving axially, a gasket and a locking bolt are installed at a threaded hole at the end of the connecting shaft of the steering engine (10), the electric push rod (11) can rotate freely by driving the steering engine (10), the upper end of a laser (12) is square, threaded holes are formed in four side surfaces of the laser, a square hole is formed in the lower end of the electric push rod (11), four threaded holes are formed in the inner wall of the square hole, the upper end of the laser (12) is installed in the lower end of the electric push rod (11) and is connected with the electric push rod (11) through the four bolts, and the laser (12) can move back and forth by adjusting the electric push rod (11);
the gear rotating device (3) consists of a left support (15), a short connecting shaft (16), a motor rotating frame (17), a spiral bevel gear (18), a gear rotating servo motor (19), a long connecting shaft (20), a right support (21), a motor fixing frame (22), a coupler (23) and a rotating frame servo motor (24), wherein the left support (15) and the right support (21) are connected with the bottom plate (4) through bolts, shaft holes are formed in the middle parts of the left support and the right support, four threaded holes are respectively formed in the left end and the right end of the motor rotating frame (17), four threaded holes are also formed in one ends of the short connecting shaft (16) and the long connecting shaft (20), one end of the short connecting shaft (16) provided with the threaded holes is connected with the threaded holes of the motor rotating frame (17) through bolts, the other end of the short connecting shaft (16) is connected with the shaft holes in the middle part of the left support (15), one end of the long connecting shaft (20) provided with the threaded holes is connected with the threaded holes of the motor rotating frame (17) through bolts, the other end of the connecting rod is connected with a shaft hole in the middle of a right support (21), a motor fixing frame (22) is installed on the outer side of the right support (21) through a bolt, a rotating frame servo motor (24) is installed on the outer side of the motor fixing frame (22) through a bolt, a long connecting shaft (20) penetrates through the shaft hole in the middle of the right support (21) and is connected with a motor output shaft on the rotating frame servo motor (24) through a coupler (23), a gear rotating servo motor (19) is connected with a motor rotating frame (17) through a bolt, an output shaft is installed on one side of the gear rotating servo motor (19), a shaft shoulder and a key groove are arranged on the output shaft, a threaded hole is formed in the shaft end of the shaft, a shaft hole is formed in the spiral bevel gear (18), a key groove is formed in the shaft hole, the spiral bevel gear (18) and the output shaft on the gear rotating servo motor (19) are connected through a key so as to prevent the spiral bevel gear (18) from axially shifting, a gasket and a locking bolt are installed at a threaded hole at the shaft end of an output shaft of a gear rotating servo motor (19), the rotating frame servo motor (24) can drive a motor rotating frame (17) to rotate through a coupler (23), the angle of a spiral bevel gear (18) can be adjusted, it is guaranteed that a spiral bevel gear bus is parallel to a bottom plate plane, the gear rotating servo motor (19) can drive the spiral bevel gear (18) to rotate, and machining of each tooth surface is achieved.
CN202210614455.7A 2022-05-26 2022-05-26 Micro-texture laser processing device for tooth surface of spiral bevel gear Active CN114833456B (en)

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CN202210614455.7A CN114833456B (en) 2022-05-26 2022-05-26 Micro-texture laser processing device for tooth surface of spiral bevel gear

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CN202210614455.7A CN114833456B (en) 2022-05-26 2022-05-26 Micro-texture laser processing device for tooth surface of spiral bevel gear

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Publication number Priority date Publication date Assignee Title
JP2021000659A (en) * 2019-06-21 2021-01-07 呉剛 Laser cutting device capable of realizing three-dimensional cutting for complex component
CN112475610A (en) * 2020-11-24 2021-03-12 江苏希西维轴承有限公司 Spherical surface laser micromachining device and method for joint bearing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021000659A (en) * 2019-06-21 2021-01-07 呉剛 Laser cutting device capable of realizing three-dimensional cutting for complex component
CN112475610A (en) * 2020-11-24 2021-03-12 江苏希西维轴承有限公司 Spherical surface laser micromachining device and method for joint bearing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
刘鑫;田国富;王涛;: "大型曲线齿锥齿轮复合加工中的激光淬火轨迹规划研究", 制造技术与机床, no. 07, pages 149 - 153 *

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