CN116372281A - Single-process numerical control worm grinding wheel gear grinding machine - Google Patents
Single-process numerical control worm grinding wheel gear grinding machine Download PDFInfo
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- CN116372281A CN116372281A CN202310291754.6A CN202310291754A CN116372281A CN 116372281 A CN116372281 A CN 116372281A CN 202310291754 A CN202310291754 A CN 202310291754A CN 116372281 A CN116372281 A CN 116372281A
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- 238000000034 method Methods 0.000 title claims description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 86
- 238000003754 machining Methods 0.000 claims abstract description 10
- 238000009966 trimming Methods 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 17
- 238000012545 processing Methods 0.000 description 11
- 229910003460 diamond Inorganic materials 0.000 description 5
- 239000010432 diamond Substances 0.000 description 5
- 229910001651 emery Inorganic materials 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F19/00—Finishing gear teeth by other tools than those used for manufacturing gear teeth
- B23F19/02—Lapping gear teeth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
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- 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
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Abstract
The invention discloses a single-station numerical control worm grinding wheel gear grinding machine, which comprises: the lathe bed is provided with a first upright post; the workpiece spindle is vertically arranged on the lathe bed; the machining assembly comprises a grinding wheel spindle box and a driving assembly, wherein a grinding wheel is arranged at the power output end of the grinding wheel spindle box and can be driven to rotate around a B axis, and the driving assembly is used for driving the grinding wheel spindle box to move along a horizontal axial X axis, a Y axis vertical to the X axis and a vertical axial Z axis and rotate around an A axis parallel to the X axis; the grinding wheel dressing mechanism is arranged on the first upright post and positioned on the upper side of the workpiece main shaft and comprises a dressing wheel, a dressing rotary mechanism and a dressing swing mechanism, wherein the dressing wheel is arranged at the power output end of the dressing rotary mechanism and can rotate around a B1 shaft under the driving of the dressing wheel, and the dressing rotary mechanism is arranged at the power output end of the dressing swing mechanism and can rotate around a C4 shaft coaxial with the workpiece main shaft under the driving of the dressing rotary mechanism. The invention is suitable for various finishing working conditions, has high grinding precision and can ensure excellent microscopic precision of the tooth surface of the grinding wheel.
Description
Technical Field
The invention relates to the technical field of gear processing machine tools, in particular to a single-working-position numerical control worm grinding wheel gear grinding machine.
Background
The numerical control worm grinding wheel gear grinding machine is used for grinding cylindrical straight and helical gears at high speed and accurately, and aims to trim deformation of gears after heat treatment, improve tooth surface precision and finish, and meet requirements of stable transmission, noise reduction and precision improvement. With the rapid development of new energy automobiles in recent years, the requirements for high-precision, extremely low-noise and high-rotation-speed gears are rapidly increased, and the requirements for equipment precision of gear grinding machine manufacturers are increasingly higher, in particular to the microscopic precision of tooth surfaces. In order to ensure the precision of the final grinding, dressing devices are generally provided for dressing grinding wheels for grinding.
In the prior art, a numerical control worm grinding wheel gear grinding machine tool, as shown in fig. 1, the trimming device mainly comprises: a dressing structure 1 for dressing a grinding wheel 3 fixed to a bed and a dressing rotating shaft 2 for avoiding interference. The gear grinding machine has the following defects: firstly, under the working conditions that the grinding wheel 3 needs high-precision single-sided diamond wheel trimming-double cone rollers and universal trimming-R angle rollers, the trimming rotary shaft 2 cannot participate in pressure angle compensation and linkage, and the application range is narrow. Second, the rotational center of the dressing rotational shaft 2 fails to pass through the rotational center of the C-axis (for mounting a workpiece), and there is a difference in dressing and grinding phase angles, affecting grinding accuracy. Third, there is bigger cantilever between the trimming rotary shaft 2 and the trimming structure 1, the rigidity is weaker, when there is bigger rough trimming amount in the trimming process, the rotation rigidity of the trimming structure 1 is weaker, resulting in poorer tooth form precision and poorer tooth surface microcosmic precision.
In view of this, there is a need to optimize for existing numerical control worm grinding wheel gear grinding machines to overcome the above-mentioned drawbacks.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a single-working-position numerical control worm grinding wheel gear grinding machine which is suitable for various finishing working conditions, has high grinding precision and can ensure excellent microscopic precision of the tooth surface of the grinding wheel.
According to an embodiment of the invention, the single-station numerical control worm grinding wheel gear grinding machine comprises:
the lathe bed is provided with a first upright post;
the workpiece spindle is vertically arranged on the lathe bed, and the upper end of the workpiece spindle is used for installing a workpiece;
the machining assembly is arranged on one side of the workpiece spindle on the lathe body and comprises a grinding wheel spindle box and a driving assembly, a grinding wheel is arranged at the power output end of the grinding wheel spindle box and can be driven to rotate around a B shaft, the driving assembly is used for driving the grinding wheel spindle box to move along a horizontal axial X shaft, a Y shaft perpendicular to the X shaft and a vertical axial Z shaft and rotate around an A shaft parallel to the X shaft, and the B shaft is parallel to the Y shaft;
the grinding wheel dressing mechanism is arranged on the first upright post and positioned on the upper side of the workpiece spindle and comprises a dressing wheel, a dressing rotary mechanism and a dressing swing mechanism, wherein the dressing wheel is arranged at the power output end of the dressing rotary mechanism and can rotate around a B1 shaft under the driving of the dressing wheel, the dressing rotary mechanism is arranged at the power output end of the dressing swing mechanism and can rotate around a C4 shaft coaxial with the workpiece spindle under the driving of the dressing rotary mechanism, and the B1 shaft is perpendicular to the C4 shaft.
The single-station numerical control worm grinding wheel gear grinding machine provided by the embodiment of the invention has at least the following beneficial effects:
through the structure, under the working conditions that the grinding wheel needs high-precision single-sided diamond wheel dressing-double-cone roller and universal dressing-R angle roller, the dressing swing mechanism can realize high-precision linkage with the processing assembly and participate in pressure angle compensation, under the two working conditions, the dressing swing mechanism can enable the dressing wheel to swing a certain angle to be in contact with one tooth surface of the grinding wheel, then the driving assembly is matched with the grinding wheel spindle box to drive the grinding wheel to act, meanwhile, the dressing swing mechanism drives the dressing wheel to swing to repair one tooth surface of the grinding wheel, after finishing one tooth surface, the dressing wheel can swing a certain angle to be in contact with the other tooth surface of the grinding wheel through the dressing swing mechanism, then the driving assembly is matched with the grinding wheel spindle box to drive the grinding wheel to act, and meanwhile, the dressing swing mechanism drives the dressing wheel to swing to carry out dressing on the other tooth surface of the grinding wheel, and multiple working conditions are applicable; in addition, the rotation center of the power output end of the trimming swing mechanism is coaxial with the workpiece spindle, so that the phase angle of grinding and trimming is the same, the trimming precision can be improved, and the grinding precision and stability of the grinding wheel can be improved; furthermore, the grinding wheel dressing mechanism is positioned on the upper side of the workpiece spindle, and the dressing rotary mechanism is arranged at the power output end of the dressing swing mechanism, and the dressing rotary mechanism is provided with a swing structure like the prior art, but has no larger cantilever, extremely high rigidity, extremely high rotation rigidity of the dressing rotary mechanism when a larger rough dressing amount exists in the dressing process, extremely high tooth form precision and process stability and excellent tooth surface micro-precision when a single-sided dressing large-modulus gear corresponds to a grinding wheel.
According to some embodiments of the present invention, the lathe bed is provided with a second upright, the driving assembly includes an X-axis driving member, a Y-axis driving member, a Z-axis driving member and a swing driving member, the X-axis driving member is connected to the second upright for driving the second upright to move along the X-axis, the Z-axis driving member is disposed on the second upright, an output end of the Z-axis driving member is provided with a Z-axis sliding table and can drive the second upright to move along the Z-axis, the swing driving member is disposed on the Z-axis sliding table, an output end of the swing driving member is provided with a turntable and can drive the turntable to rotate around the a-axis, an output end of the Y-axis driving member is provided with a Y-axis sliding table and can drive the second upright to move along the Y-axis, and the grinding wheel spindle box is disposed on the Y-axis sliding table.
According to some embodiments of the invention, the bed is provided with a first sliding rail extending along the X-axis direction, and the bottom end of the second upright is slidably arranged on the first sliding rail.
According to some embodiments of the invention, the X-axis drive, Y-axis drive, and Z-axis drive each comprise a motor and a lead screw nut mechanism.
According to some embodiments of the invention, the first upright is provided with a movable seat and a lifting mechanism, the lifting mechanism is used for driving the movable seat to lift, and the grinding wheel dressing mechanism is arranged on the movable seat.
According to some embodiments of the invention, the first upright is provided with a second sliding rail extending vertically, and the movable seat is arranged on the second sliding rail in a vertical sliding manner.
According to some embodiments of the invention, a power output end of the dressing swing mechanism is provided with a mounting seat, the dressing swing mechanism is arranged on the mounting seat, and a dressing pen is arranged on the lower side of the dressing wheel on the mounting seat and is used for dressing the tooth top profile of the grinding wheel.
According to some embodiments of the invention, the dressing pen protrudes toward one end of the processing assembly from the dressing wheel.
According to some embodiments of the invention, a limiting tail frame is arranged at the bottom end of the movable seat and is used for being matched with a workpiece arranged on the workpiece spindle so as to radially limit the workpiece.
According to some embodiments of the invention, the bottom end of the limiting tail frame is provided with a vertically extending limiting center, and the limiting center is used for abutting against the shaft end of a workpiece arranged on the workpiece spindle so as to radially limit the workpiece.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of a prior art numerical control worm grinding wheel gear grinding machine;
FIG. 2 is a schematic diagram of an embodiment of the present invention;
FIG. 3 is a schematic view of another embodiment of the present invention.
Reference numerals:
a correction structure 1, a correction rotating shaft 2 and a grinding wheel 3;
the machine tool comprises a machine tool body 100, a first upright 110, a movable seat 111, a lifting mechanism 112, a second sliding rail 113, a limiting tail frame 114, a limiting center 115, a second upright 120 and a first sliding rail 130;
a workpiece spindle 200;
the machining assembly 300, a grinding wheel spindle box 310, a grinding wheel 311, an X-axis driving piece 320, a Y-axis driving piece 330, a Y-axis sliding table 331, a Z-axis driving piece 340, a Z-axis sliding table 341 and a rotary table 350;
grinding wheel dressing mechanism 400, dressing wheel 410, dressing rotation mechanism 420, dressing swing mechanism 430, mount 431, and dressing pen 440.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 2 and 3, a single process numerical control worm grinding wheel gear grinding machine according to an embodiment of the present invention includes: lathe bed 100, workpiece spindle 200, machining assembly 300, and grinding wheel dressing mechanism 400.
The bed 100 is provided with a first upright 110.
The workpiece spindle 200 is vertically disposed on the machine body 100, and the upper end of the workpiece spindle is used for installing a workpiece, and in this embodiment, the central axis of the workpiece spindle 200 is a C axis and can rotate around the C axis.
The machining assembly 300 is arranged on the lathe bed 100 and is positioned on one side of the workpiece spindle 200, the machining assembly 300 comprises a grinding wheel spindle box 310 and a driving assembly, a grinding wheel 311 is arranged at the power output end of the grinding wheel spindle box 310 and can be driven to rotate around a B shaft, and specifically, the central axis of the grinding wheel 311 is the B shaft; the driving component is connected with the grinding wheel spindle box 310 and is used for driving the grinding wheel spindle box 310 to move along a horizontal axial X axis, a Y axis vertical to the X axis and a vertical axial Z axis and driving the grinding wheel spindle box 310 to rotate around an A axis parallel to the X axis, and the driving component is matched with the grinding wheel spindle box 310 to drive the grinding wheel 311 to act so as to grind a workpiece mounted on the workpiece spindle 200, wherein the B axis is parallel to the Y axis. It will be appreciated that the Z axis is the direction of grinding feed, the X axis is the direction of grinding feed and retract, and the Y axis is the direction of displacement of the grinding wheel headstock 310 along its own axis. In this embodiment, the processing of the workpiece depends on the relative positions of the grinding wheel 311 and the workpiece, and the relative positions of the grinding wheel 311 and the workpiece can be determined according to the moving distance of the grinding wheel spindle box 310 along the X axis, the Y axis, and the Z axis, and the rotating angle of the grinding wheel spindle box 310 around the a axis and the rotating angle of the grinding wheel 311 around the B axis, that is, when the workpiece (i.e., the gear) needs to be processed, the grinding wheel spindle box 310 is moved along the X axis, the Y axis, and the Z axis, and the grinding wheel spindle box 310 is rotated around the a axis, the grinding wheel 311 is rotated around the B axis, and the workpiece spindle 200 is rotated around the C axis, so that the processing position, the feeding amount, and the processing angle of the workpiece can be adjusted, thereby processing the required gear.
The grinding wheel dressing mechanism 400 is mounted on the first upright 110 and located on the upper side of the workpiece spindle 200, and is used for dressing the grinding wheel 311 after the grinding wheel is worn so as to ensure grinding accuracy; the grinding wheel dressing mechanism 400 comprises a dressing wheel 410, a dressing rotary mechanism 420 and a dressing swing mechanism 430, wherein the dressing wheel 410 is arranged at the power output end of the dressing rotary mechanism 420 and can rotate around a B1 shaft under the driving of the dressing wheel 410, the central axis of the dressing wheel 410 is coaxial with the B1 shaft, the dressing rotary mechanism 420 is arranged at the power output end of the dressing swing mechanism 430 and can rotate around a C4 shaft coaxial with the workpiece spindle 200 under the driving of the dressing rotary mechanism, the B1 shaft is perpendicular to the C4 shaft, the dressing swing mechanism 430 is arranged on the first upright 110, and the dressing wheel 410 adopts a diamond wheel; obviously, the dresser wheel 410 can rotate along with the dresser swing mechanism 420 around the C4 shaft coaxial with the workpiece spindle 200. It will be appreciated that the dressing swivel mechanism 420 can rotate the dressing wheel 410 around its own axis to dress the grinding wheel 311, the dressing swing mechanism 430 can adjust the angle of the dressing wheel 410, and can implement high-precision linkage with the processing assembly 300 and participate in pressure angle compensation under the working conditions that the grinding wheel 311 needs high-precision single-sided diamond wheel dressing-double cone roller and universal dressing-R angle roller, and it is obvious that the grinding wheel 311 needs to be moved to a height corresponding to the wheel dressing mechanism 400 when dressing the grinding wheel 311.
The trimming modes are generally classified into three modes: r angle gyro wheel is repaiied, bipyramid face gyro wheel is repaiied, shaping gyro wheel is repaiied, first is omnipotent shape mode, the gyro wheel point of repaiiing usefulness has the R angle, be the point contact with the emery wheel in the repaiiing process, the second kind of gyro wheel point both sides of repaiiing usefulness all have the conical surface the same with the emery wheel profile of tooth, two conical surfaces can be used for the two flank of tooth of repaiiing the emery wheel respectively, but only one face is repaiied at a time, the modulus, the pressure angle and the profile of tooth shape of the gyro wheel of third kind of repaiiing usefulness are the same with the emery wheel, two faces of gyro wheel contact with the emery wheel simultaneously, two faces are repaiied once. The numerical control worm grinding wheel gear grinding machine tool in the prior art shown in fig. 1 cannot participate in pressure angle compensation and linkage under the first two finishing working conditions, is suitable for the third finishing working condition, and has a narrow application range; in the present embodiment, the trimming swing mechanism 430 can implement high-precision linkage with the processing assembly 300 and participate in pressure angle compensation under the first two working conditions, and both working conditions are applicable. Specifically, under both the first and second dressing conditions, the dressing wheel 410 may be swung by a certain angle by the dressing swing mechanism 430 to contact one tooth surface of the grinding wheel 311, then the driving assembly drives the grinding wheel 311 to act in cooperation with the grinding wheel headstock 310, and simultaneously the dressing swing mechanism 420 drives the dressing wheel 410 to swing to dress one tooth surface of the grinding wheel 311, after finishing one tooth surface, the dressing wheel 410 may be swung by a certain angle by the dressing swing mechanism 430 to contact the other tooth surface of the grinding wheel 311, then the driving assembly drives the grinding wheel 311 to act in cooperation with the grinding wheel headstock 310, and simultaneously the dressing swing mechanism 420 drives the dressing wheel 410 to swing to dress the other tooth surface of the grinding wheel 311, both the two dressing conditions are applicable. Since this embodiment is applicable to the first two finishing conditions, there is no need to design a finishing wheel 410 for each type of grinding wheel 311 like the third working condition, and the series of grinding wheels 311 with similar modulus and pressure angle can use the same type of finishing wheel 410, so as to reduce the production cost.
Further, the power output end rotation center of the dressing swing mechanism 430 in the present embodiment is coaxial with the workpiece spindle 200 so that the phase angle of grinding and dressing is the same, so that the dressing accuracy can be improved to improve the grinding accuracy and stability of the grinding wheel 311. In addition, in the present embodiment, the grinding wheel dressing mechanism 400 is located on the upper side of the workpiece spindle 200, and the dressing rotation mechanism 420 is disposed at the power output end of the dressing swing mechanism 430, and although the swing structure is adopted as in the prior art, there is no large cantilever, the rigidity is extremely strong, when there is a large rough dressing amount in the dressing process, the rotation rigidity of the dressing rotation mechanism 420 is extremely strong, and when the single-sided dressing large-modulus gear corresponds to the grinding wheel 311, the tooth profile precision and the process stability are extremely excellent, and the tooth surface microscopic precision is excellent.
Referring to fig. 2 and 3, it may be understood that the second upright 120 is provided on the machine body 100, the driving assembly includes an X-axis driving member 320, a Y-axis driving member 330, a Z-axis driving member 340, and a swing driving member, the X-axis driving member 320 is connected to the second upright 120 for driving the second upright to move along the X-axis, the Z-axis driving member 340 is provided on the second upright 120, the output end of the Z-axis driving member 340 is provided with a Z-axis sliding table 341, the Z-axis driving member 340 can drive the Z-axis sliding table 341 to move along the Z-axis, the swing driving member is provided on the Z-axis sliding table 341, the output end of the swing driving member is provided with a turntable 350, the swing driving member can drive the turntable 350 to rotate around the a-axis, the Y-axis driving member 330 is provided on the turntable 350, the output end of the Y-axis driving member 330 can drive the Y-axis sliding table 331 to move along the Y-axis, and the grinding wheel headstock 310 is provided on the Y-axis sliding table 331.
Referring to fig. 2 and 3, it can be understood that the bed 100 is provided with a first sliding rail 130 extending along the X-axis direction, the bottom end of the second upright 120 is slidably disposed on the first sliding rail 130, and the first sliding rail 130 is provided to guide the movement of the second upright 120, so as to improve the stability in the movement process.
Referring to fig. 2 and 3, it can be understood that the X-axis driving member 320, the Y-axis driving member 330, and the Z-axis driving member 340 each include a motor and a screw-nut mechanism, wherein a coupling is disposed between the motor and the screw-nut mechanism, and the driving mode is adopted, so that the transmission precision is high, and the control of the grinding precision is facilitated. Further, the trimming rotary mechanism 420, the trimming swing mechanism 430, the swing driving member and the workpiece spindle 200 are all internally provided with motors so as to adopt a driving mode of direct driving of the motors, so that intermediate transmission links are reduced, and the movement precision is improved.
Referring to fig. 2 and 3, it can be understood that the movable base 111 and the lifting mechanism 112 are provided on the first upright 110, the lifting mechanism 112 is used for driving the movable base 111 to lift, and the grinding wheel dressing mechanism 400 is provided on the movable base 111, so that the grinding wheel dressing mechanism 400 can be lifted by the lifting mechanism 112, so that the grinding wheel 311 is dressed more conveniently, and the dressing precision is higher. In this embodiment, the lifting mechanism 112 also adopts a structure in which a motor and a screw nut mechanism are matched.
Referring to fig. 2 and 3, it can be understood that the first upright 110 is provided with a second sliding rail 113 extending vertically, the movable seat 111 is vertically slidably disposed on the second sliding rail 113, and the second sliding rail 113 is provided to provide guidance for the vertical movement of the movable seat 111, so as to provide stability during the action.
Referring to fig. 2 and 3, it will be understood that the power output end of the dressing swing mechanism 430 is provided with a mounting seat 431, the dressing swing mechanism 420 is provided on the mounting seat 431, the mounting seat 431 is provided with a dressing pen 440 on the lower side of the dressing wheel 410 by providing the mounting seat 431 to provide mounting support for the dressing swing mechanism 420, the dressing pen 440 is used for dressing the tooth top profile of the grinding wheel 311, the dressing wheel 410 is usually used for dressing the tooth slot of the grinding wheel 311, and the tooth top profile of the grinding wheel 311 will also have wear, so the dressing pen 440 is provided for dressing the tooth top profile of the grinding wheel 311; in this embodiment, the dressing pen 440 is a diamond pen.
Referring to fig. 2 and 3, it can be understood that the dressing pen 440 protrudes toward one end of the machining assembly 300 from the dressing wheel 410, dressing tooth grooves and tooth tip profiles are not performed at the same time, and then dressing tooth surfaces in tooth grooves of the grinding wheel 311 and then dressing tooth tip profiles, so that the dressing pen 440 protrudes toward one end of the machining assembly 300 from the dressing wheel 410 to enable the dressing pen 440 to contact the grinding wheel 311 when dressing tooth tip profiles; specifically, after finishing the tooth grooves of the grinding wheel 311, the grinding wheel 311 is moved downward relative to the finishing wheel 410, and the tooth top profile thereof is brought into contact with the finishing pen 440 to perform finishing.
Referring to fig. 2 and 3, it can be understood that the bottom end of the movable seat 111 is provided with a limiting tail 114 for cooperating with a workpiece mounted on the workpiece spindle 200 to radially limit the workpiece, thereby preventing the workpiece from shaking during processing and improving the processing precision.
Referring to fig. 2 and 3, it can be understood that the bottom end of the limiting tailstock 114 is provided with a vertically extending limiting center 115, the bottom end of the limiting center 115 is in a conical tip shape, and the limiting center 115 is used for abutting against the shaft end of a workpiece mounted on the workpiece spindle 200 to radially limit the workpiece, so that the structure is simple and practical; it will be appreciated that the workpiece shaft end is provided with a hole site into which the spacing tip 115 is inserted.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (10)
1. A single-process numerical control worm grinding wheel gear grinding machine, comprising:
a bed (100) provided with a first upright (110);
a workpiece spindle (200) vertically arranged on the lathe bed (100), and the upper end of the workpiece spindle is used for installing a workpiece;
the machining assembly (300) is arranged on one side of the workpiece spindle (200) on the lathe bed (100) and comprises a grinding wheel spindle box (310) and a driving assembly, a grinding wheel (311) is arranged at the power output end of the grinding wheel spindle box (310) and can be driven to rotate around a B axis, and the driving assembly is used for driving the grinding wheel spindle box (310) to move along a horizontal axial X axis, a Y axis vertical to the X axis, a vertical axial Z axis and rotate around an A axis parallel to the X axis, and the B axis is parallel to the Y axis;
the grinding wheel dressing mechanism (400) is arranged on the first upright post (110) and positioned on the upper side of the workpiece spindle (200), and comprises a dressing wheel (410), a dressing rotary mechanism (420) and a dressing swing mechanism (430), wherein the dressing wheel (410) is arranged at the power output end of the dressing rotary mechanism (420) and can rotate around a B1 shaft under the driving of the power output end, and the dressing rotary mechanism (420) is arranged at the power output end of the dressing swing mechanism (430) and can rotate around a C4 shaft coaxial with the workpiece spindle (200) under the driving of the power output end, and the B1 shaft is perpendicular to the C4 shaft.
2. The single process numerical control worm grinding wheel gear grinding machine according to claim 1, characterized in that: be equipped with second stand (120) on lathe bed (100), drive assembly includes X axle driving piece (320), Y axle driving piece (330), Z axle driving piece (340) and swing driving piece, X axle driving piece (320) are connected second stand (120) are in order to be used for driving it to follow X axle and remove, Z axle driving piece (340) are located second stand (120), the output of Z axle driving piece (340) is equipped with Z axle slip table (341) and can drive it and remove along the Z axle, swing driving piece is located Z axle slip table (341), the output of swing driving piece is equipped with revolving platform (350) and can drive it to rotate around the A axle, Y axle driving piece (330) are located revolving platform (350), the output of Y axle driving piece (330) is equipped with Y axle slip table (331) and can drive it to remove along the Y axle, headstock (310) are located Y axle slip table (331).
3. The single process numerical control worm grinding wheel gear grinding machine according to claim 2, characterized in that: the lathe bed (100) is provided with a first sliding rail (130) extending along the X-axis direction, and the bottom end of the second upright post (120) is slidably arranged on the first sliding rail (130).
4. A single process numerical control worm grinding wheel tooth grinding machine according to claim 2 or 3, characterized in that: the X-axis driving piece (320), the Y-axis driving piece (330) and the Z-axis driving piece (340) comprise motors and screw-nut mechanisms.
5. The single process numerical control worm grinding wheel gear grinding machine according to claim 1, characterized in that: the grinding wheel dressing mechanism is characterized in that a movable seat (111) and a lifting mechanism (112) are arranged on the first upright post (110), the lifting mechanism (112) is used for driving the movable seat (111) to lift, and the grinding wheel dressing mechanism (400) is arranged on the movable seat (111).
6. The single process numerical control worm grinding wheel gear grinding machine according to claim 5, characterized in that: the first upright post (110) is provided with a second sliding rail (113) extending vertically, and the movable seat (111) is arranged on the second sliding rail (113) in a vertical sliding manner.
7. The single process numerical control worm grinding wheel gear grinding machine according to claim 1 or 5, characterized in that: the power output end of the trimming swing mechanism (430) is provided with a mounting seat (431), the trimming rotary mechanism (420) is arranged on the mounting seat (431), and the mounting seat (431) is provided with a trimming pen (440) at the lower side of the trimming wheel (410) for trimming the tooth top outline of the grinding wheel (311).
8. The single process numerical control worm grinding wheel gear grinding machine according to claim 7, characterized in that: the dressing pen (440) protrudes toward one end of the machining assembly (300) from the dressing wheel (410).
9. The single process numerical control worm grinding wheel gear grinding machine according to claim 5, characterized in that: and a limiting tail frame (114) is arranged at the bottom end of the movable seat (111) and is used for being matched with a workpiece arranged on the workpiece spindle (200) so as to radially limit the workpiece.
10. The single process numerical control worm grinding wheel gear grinding machine of claim 9, wherein: the bottom end of the limiting tail frame (114) is provided with a vertically extending limiting center (115), and the limiting center (115) is used for abutting against the shaft end of a workpiece arranged on the workpiece spindle (200) to radially limit the workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310291754.6A CN116372281A (en) | 2023-03-23 | 2023-03-23 | Single-process numerical control worm grinding wheel gear grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310291754.6A CN116372281A (en) | 2023-03-23 | 2023-03-23 | Single-process numerical control worm grinding wheel gear grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116372281A true CN116372281A (en) | 2023-07-04 |
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| CN202310291754.6A Pending CN116372281A (en) | 2023-03-23 | 2023-03-23 | Single-process numerical control worm grinding wheel gear grinding machine |
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Citations (7)
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| EP2177316A1 (en) * | 2007-08-17 | 2010-04-21 | Mitsubishi Heavy Industries, Ltd. | Dressing method and dressing apparatus for barrel worm-shaped tool, and internal gear grinding machine |
| CN104275532A (en) * | 2013-07-02 | 2015-01-14 | 利勃海尔-齿轮技术有限责任公司 | Gear milling machine, control program, milling tool, associated finishing equipment and method |
| JP2015039765A (en) * | 2013-08-23 | 2015-03-02 | アイシン・エィ・ダブリュ株式会社 | Rotation processing machine |
| CN105033363A (en) * | 2015-09-08 | 2015-11-11 | 盐城秦川华兴机床有限公司 | Grinding wheel dressing device used for numerically-controlled gear hobbing machine |
| US20150360308A1 (en) * | 2013-03-22 | 2015-12-17 | Mitsubishi Heavy Industries, Ltd. | Gear machining apparatus |
| CN110091005A (en) * | 2018-01-31 | 2019-08-06 | 三菱重工工作机械株式会社 | Gear grinding device |
| CN114433960A (en) * | 2022-02-14 | 2022-05-06 | 合肥工业大学 | Method for predicting modification tooth surface deviation of continuous generating grinding teeth |
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2023
- 2023-03-23 CN CN202310291754.6A patent/CN116372281A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2177316A1 (en) * | 2007-08-17 | 2010-04-21 | Mitsubishi Heavy Industries, Ltd. | Dressing method and dressing apparatus for barrel worm-shaped tool, and internal gear grinding machine |
| US20150360308A1 (en) * | 2013-03-22 | 2015-12-17 | Mitsubishi Heavy Industries, Ltd. | Gear machining apparatus |
| CN104275532A (en) * | 2013-07-02 | 2015-01-14 | 利勃海尔-齿轮技术有限责任公司 | Gear milling machine, control program, milling tool, associated finishing equipment and method |
| JP2015039765A (en) * | 2013-08-23 | 2015-03-02 | アイシン・エィ・ダブリュ株式会社 | Rotation processing machine |
| CN105033363A (en) * | 2015-09-08 | 2015-11-11 | 盐城秦川华兴机床有限公司 | Grinding wheel dressing device used for numerically-controlled gear hobbing machine |
| CN110091005A (en) * | 2018-01-31 | 2019-08-06 | 三菱重工工作机械株式会社 | Gear grinding device |
| CN114433960A (en) * | 2022-02-14 | 2022-05-06 | 合肥工业大学 | Method for predicting modification tooth surface deviation of continuous generating grinding teeth |
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