CN111975128A - Tooth surface processing method for spiral bevel gear and hypoid gear - Google Patents
Tooth surface processing method for spiral bevel gear and hypoid gear Download PDFInfo
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- CN111975128A CN111975128A CN202010701291.2A CN202010701291A CN111975128A CN 111975128 A CN111975128 A CN 111975128A CN 202010701291 A CN202010701291 A CN 202010701291A CN 111975128 A CN111975128 A CN 111975128A
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- gear
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- grinding
- convex surface
- concave surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F9/00—Making gears having teeth curved in their longitudinal direction
- B23F9/02—Making gears having teeth curved in their longitudinal direction by grinding
-
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a tooth surface processing method for a spiral bevel gear and a hypoid gear, which is characterized in that a grinding wheel is arranged on a full-numerical control spiral bevel gear processing machine tool, concave surface adjusting parameters and convex surface adjusting parameters are obtained according to the design requirements of the spiral bevel gear or the hypoid gear to be processed and the geometric parameter analysis of the grinding wheel, the concave surface adjusting parameters or the convex surface adjusting parameters are called to finish the concave surface processing or the convex surface processing of the spiral bevel gear or the hypoid gear, and then the convex surface processing or the concave surface processing is finished correspondingly. The invention simultaneously finishes the concave surface gear grinding processing and the convex surface gear grinding processing of the spiral bevel gear or the hypoid gear by a set of machine tool and a grinding wheel, has the advantages of high processing efficiency and high precision, simultaneously designs a set of machine tool adjusting parameters aiming at the concave surface and the convex surface respectively, enables the tooth shapes and the tooth thicknesses of the concave surface and the convex surface to be independently adjusted and controlled, effectively combines the advantages of two traditional processing technologies, and has strong practicability.
Description
Technical Field
The invention relates to a gear machining method, in particular to a method for machining the tooth surfaces of a spiral bevel gear and a hypoid gear.
Background
The spiral bevel gear and the hypoid gear are processed according to the technological process, and mainly comprises the steps of gear blank processing, gear cutting, heat treatment post-processing and the like, wherein some of the gear cutting before the heat treatment are also divided into rough cutting gear and finish cutting gear, and the heat treatment post-processing mainly comprises three modes of gear grinding, gear grinding and hard tooth surface gear scraping.
The spiral bevel gear and the hypoid gear need corresponding grinding wheels and gear processing machines in the process of gear grinding, according to the gear meshing principle, gear teeth of a gear to be processed are determined by grinding wheel parameters and gear processing machine tool adjusting parameters, the grinding wheel parameters mainly refer to geometrical parameters of the grinding wheels, the gear processing machine tool adjusting parameters are adjusting parameters corresponding to a processing mathematical model of the gear processing machine tool calculated according to the design requirements of the gear to be processed, and the adjusting parameters determine the relative positions of the gear to be processed and the grinding wheels at the initial processing time and the relative motion relationship in the processing process.
The traditional tooth surface grinding processing technology of the spiral bevel gear and the hypoid gear has two types:
the first method is to use a gear processing machine tool, a grinding wheel and a set of machine tool to adjust parameters to finish the processing of the concave surface and the convex surface of the spiral bevel gear or the hypoid gear, the processing efficiency is high, but the tooth shapes and the tooth thicknesses corresponding to the concave surface and the convex surface can not be independently adjusted and controlled;
the second is to design a set of machine tool adjustment parameters and a set of grinding wheels for the concave surface and the convex surface of the spiral bevel gear or the hypoid gear, and the gear processing machine tool processes the concave surface and the convex surface independently by adopting the same machine or one machine according to the selection of the grinding wheels and the difference of the machine tool adjustment parameters, so that the tooth profile and the tooth thickness of the concave surface and the convex surface are adjusted and controlled independently, but the processing efficiency is low.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the tooth surface processing method of the spiral bevel gear and the hypoid gear, which has the advantages of high processing efficiency and independent control of the concave surface and the convex surface, and can be used for processing the tooth surfaces of the spiral bevel gear and the hypoid gear.
According to the tooth surface processing method of the spiral bevel gear and the hypoid gear, disclosed by the embodiment of the invention, the grinding wheel is arranged on a full-numerical-control spiral bevel gear processing machine tool, concave surface adjusting parameters and convex surface adjusting parameters are obtained according to the design requirements of the spiral bevel gear or the hypoid gear to be processed and the geometric parameter analysis of the grinding wheel, the concave surface adjusting parameters or the convex surface adjusting parameters are called to finish the concave surface processing or the convex surface processing of the spiral bevel gear or the hypoid gear, and then the convex surface processing or the concave surface processing is finished correspondingly.
According to the embodiment of the invention, at least the following technical effects are achieved:
the invention simultaneously finishes the concave surface gear grinding processing and the convex surface gear grinding processing of the spiral bevel gear or the hypoid gear by a set of machine tool and a grinding wheel, has the advantages of high processing efficiency and high precision, simultaneously designs a set of machine tool adjusting parameters aiming at the concave surface and the convex surface respectively, enables the tooth shapes and the tooth thicknesses of the concave surface and the convex surface to be independently adjusted and controlled, effectively combines the advantages of two traditional processing technologies, and has strong practicability. Has extremely important significance for shortening the development period of products.
According to some embodiments of the invention, the design requirements comprise a tooth flank contact area, a tooth thickness design requirement.
According to some embodiments of the present invention, the concave surface adjustment parameter and the convex surface adjustment parameter are simultaneously introduced into the full-numerical-control helical bevel gear processing machine, and during gear grinding, all concave surface gear grinding or convex surface gear grinding is performed first, and then convex surface gear grinding or concave surface gear grinding is performed.
According to some embodiments of the present invention, the concave surface adjustment parameter and the convex surface adjustment parameter are simultaneously introduced into the full-numerical-control spiral bevel gear processing machine, and during gear grinding, after finishing the concave surface gear grinding and the convex surface gear grinding of the corresponding tooth slot, switching to the next tooth slot for processing.
According to some embodiments of the invention, the grinding wheel is controlled to exit to the initial position when switching from concave to convex or from convex to concave.
According to some embodiments of the invention, after obtaining the concave surface adjustment parameter and the convex surface adjustment parameter, checking is performed, whether the grinding wheel will cut and damage the concave surface or the convex surface when grinding the concave surface or the convex surface is analyzed, and after the checking and the analysis are qualified, the grinding wheel is guided into the full-numerical control spiral bevel gear processing machine tool.
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.
Detailed Description
The following detailed description of embodiments of the invention is intended to be illustrative, but not limiting, of the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides a tooth surface processing method of a spiral bevel gear and a hypoid gear, which is characterized in that a grinding wheel is arranged on a full-numerical control spiral bevel gear processing machine tool, concave surface adjusting parameters and convex surface adjusting parameters are obtained according to design requirements of the spiral bevel gear and the hypoid gear to be processed and geometric parameter analysis of the grinding wheel, concave surface adjusting parameters or convex surface adjusting parameters are called to finish concave surface processing or convex surface processing of the spiral bevel gear and the hypoid gear, and then convex surface processing or concave surface processing is finished correspondingly.
The numerical control spiral bevel gear grinding machine tool simultaneously finishes the concave surface gear grinding processing and the convex surface gear grinding processing of the spiral bevel gear and the hypoid gear through a set of full numerical control spiral bevel gear processing machine tool and a grinding wheel, has the advantages of high processing efficiency and high precision, simultaneously designs a set of machine tool adjusting parameters aiming at the concave surface and the convex surface respectively, enables the tooth shapes and the tooth thicknesses of the concave surface and the convex surface to be independently adjusted and controlled, effectively combines the advantages of two traditional processing technologies, and has strong practicability. Has extremely important significance for shortening the development period of products.
In some embodiments of the invention, the design requirements primarily include tooth flank contact area and tooth thickness design requirements. The shape, size and position of the tooth surface contact area directly influence the smooth running, service life and noise of the gear, and is one of important marks for measuring the meshing quality of the spiral bevel gear and the hypoid gear. And the tooth thickness is an important parameter influencing the backlash, so that the grinding quality can be effectively ensured by mainly considering the tooth thickness and the backlash. The relevant parameters of the tooth surface contact area and the tooth thickness design requirement can be obtained through measurement after gear forming and through design parameters, and are not described more fully herein.
In some embodiments, when the concave grinding gear is switched to the convex grinding gear or the convex grinding gear is switched to the concave grinding gear, the grinding wheel is controlled to exit to an initial position, namely, a zero position before the grinding gear is machined.
In some embodiments of the present invention, the concave surface adjustment parameter and the convex surface adjustment parameter are simultaneously introduced into the fully numerically controlled spiral bevel gear processing machine tool, and during gear grinding, all concave surface gear grinding or convex surface gear grinding is performed first, and then convex surface gear grinding or concave surface gear grinding is performed. For example, after the concave grinding in one tooth groove is finished, the grinding wheel is reset, and the spiral bevel gear or the hypoid gear rotates by an indexing angle until the next tooth groove is aligned with the grinding wheel for concave grinding.
In some embodiments of the present invention, the concave surface adjustment parameter and the convex surface adjustment parameter are simultaneously introduced into the fully numerically controlled spiral bevel gear processing machine tool, and during gear grinding, after finishing the concave surface gear grinding and the convex surface gear grinding corresponding to the tooth groove, the next tooth groove is switched to for processing.
In the actual processing process, one of the two processing modes can be flexibly selected according to requirements to carry out gear grinding processing.
In addition, in order to avoid the damage of the spiral bevel gear or the hypoid gear caused by excessive grinding during gear grinding, in some embodiments of the invention, the inspection is performed after the concave surface adjustment parameters and the convex surface adjustment parameters are obtained, whether the concave surface or the convex surface is damaged by cutting when the grinding wheel grinds the concave surface or the convex surface is analyzed, and the grinding wheel is guided into the full-numerical-control spiral bevel gear processing machine tool after the inspection and the analysis are qualified. The test analysis can be performed by establishing a theoretical model or by comparing a complementary graph, and the test methods are common knowledge and are not described herein too much.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. A method for processing the tooth surfaces of spiral bevel gears and hypoid gears is characterized in that: the grinding wheel is installed on a full-numerical-control spiral bevel gear processing machine tool, concave surface adjusting parameters and convex surface adjusting parameters are obtained according to design requirements of a spiral bevel gear or a hypoid gear to be processed and geometric parameter analysis of the grinding wheel, concave surface processing or convex surface processing of the spiral bevel gear or the hypoid gear is completed by calling the concave surface adjusting parameters or the convex surface adjusting parameters, and then convex surface processing or concave surface processing is completed correspondingly.
2. The method for machining the tooth surfaces of spiral bevel gears and hypoid gears according to claim 1, wherein the method comprises the steps of: the design requirements include tooth surface contact area and tooth thickness design requirements.
3. The method for machining the tooth surfaces of spiral bevel gears and hypoid gears according to claim 1, wherein the method comprises the steps of: and the concave surface adjustment parameters and the convex surface adjustment parameters are simultaneously led into the full-numerical control spiral bevel gear processing machine tool, and when gear grinding is carried out, all concave surface gear grinding or convex surface gear grinding is firstly completed, and then convex surface gear grinding or concave surface gear grinding is carried out.
4. The method for machining the tooth surfaces of spiral bevel gears and hypoid gears according to claim 1, wherein the method comprises the steps of: and simultaneously leading the concave surface adjustment parameters and the convex surface adjustment parameters into the full-numerical-control spiral bevel gear processing machine tool, and switching to the next tooth groove for processing after finishing the concave surface tooth grinding and the convex surface tooth grinding of the corresponding tooth groove during tooth grinding processing.
5. The method for processing the tooth surfaces of spiral bevel gears and hypoid gears according to any of claims 1 to 4, wherein: when the concave surface gear grinding is switched to the convex surface gear grinding or the convex surface gear grinding is switched to the concave surface gear grinding, the grinding wheel is controlled to exit to the initial position.
6. The method for processing the tooth surfaces of spiral bevel gears and hypoid gears according to any of claims 1 to 4, wherein: and inspecting the obtained concave surface adjusting parameters and the obtained convex surface adjusting parameters, analyzing whether the grinding wheel can cut and damage the concave surface or the convex surface when grinding the concave surface or the convex surface, and guiding the grinding wheel into the full-numerical-control spiral bevel gear processing machine tool after the grinding wheel is inspected and analyzed to be qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010701291.2A CN111975128A (en) | 2020-07-20 | 2020-07-20 | Tooth surface processing method for spiral bevel gear and hypoid gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010701291.2A CN111975128A (en) | 2020-07-20 | 2020-07-20 | Tooth surface processing method for spiral bevel gear and hypoid gear |
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| CN111975128A true CN111975128A (en) | 2020-11-24 |
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| CN202010701291.2A Pending CN111975128A (en) | 2020-07-20 | 2020-07-20 | Tooth surface processing method for spiral bevel gear and hypoid gear |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5539172A (en) * | 1993-01-22 | 1996-07-23 | Toyota Jidosha Kabushiki Kaisha | Apparatus and method for machining a gear shape |
| CN102059403A (en) * | 2010-11-04 | 2011-05-18 | 吉林大学 | Method and machine tool for machining hypoid gear pair |
| US20130259591A1 (en) * | 2012-04-02 | 2013-10-03 | Klingelnberg Ag | Method for Producing Conical or Hypoid Wheels Using the Plunging Process |
| CN103692026A (en) * | 2014-01-16 | 2014-04-02 | 哈尔滨理工大学 | Orthogonal face gear grinding method based on planar grinding wheel end face |
| CN106015517A (en) * | 2016-07-20 | 2016-10-12 | 方年学 | Curvilinear-tooth point-line meshing gear and processing method thereof |
| CN106607626A (en) * | 2017-01-20 | 2017-05-03 | 常州市格里森前进齿轮有限公司 | Gear-milling method of curve-tooth bevel gear based on tooth contact analysis |
| CN109482984A (en) * | 2018-11-09 | 2019-03-19 | 重庆理工大学 | A kind of teeth grinding method of method of forming overlikon spiral bevel gear |
-
2020
- 2020-07-20 CN CN202010701291.2A patent/CN111975128A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5539172A (en) * | 1993-01-22 | 1996-07-23 | Toyota Jidosha Kabushiki Kaisha | Apparatus and method for machining a gear shape |
| CN102059403A (en) * | 2010-11-04 | 2011-05-18 | 吉林大学 | Method and machine tool for machining hypoid gear pair |
| US20130259591A1 (en) * | 2012-04-02 | 2013-10-03 | Klingelnberg Ag | Method for Producing Conical or Hypoid Wheels Using the Plunging Process |
| CN103692026A (en) * | 2014-01-16 | 2014-04-02 | 哈尔滨理工大学 | Orthogonal face gear grinding method based on planar grinding wheel end face |
| CN106015517A (en) * | 2016-07-20 | 2016-10-12 | 方年学 | Curvilinear-tooth point-line meshing gear and processing method thereof |
| CN106607626A (en) * | 2017-01-20 | 2017-05-03 | 常州市格里森前进齿轮有限公司 | Gear-milling method of curve-tooth bevel gear based on tooth contact analysis |
| CN109482984A (en) * | 2018-11-09 | 2019-03-19 | 重庆理工大学 | A kind of teeth grinding method of method of forming overlikon spiral bevel gear |
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Application publication date: 20201124 |