CN117548745A - High-precision gear hobbing system and method - Google Patents
High-precision gear hobbing system and method Download PDFInfo
- Publication number
- CN117548745A CN117548745A CN202311704040.XA CN202311704040A CN117548745A CN 117548745 A CN117548745 A CN 117548745A CN 202311704040 A CN202311704040 A CN 202311704040A CN 117548745 A CN117548745 A CN 117548745A
- Authority
- CN
- China
- Prior art keywords
- hob
- tooth
- rotary driving
- driving assembly
- gear hobbing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 63
- 238000005520 cutting process Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 description 5
- 238000005242 forging Methods 0.000 description 2
- 238000010862 gear shaping Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Classifications
-
- 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
- B23F9/08—Making gears having teeth curved in their longitudinal direction by milling, e.g. with helicoidal hob
- B23F9/082—Making gears having teeth curved in their longitudinal direction by milling, e.g. with helicoidal hob with a hob
-
- 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
- B23F23/02—Loading, unloading or chucking arrangements for workpieces
- B23F23/06—Chucking arrangements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Processing (AREA)
Abstract
The invention discloses a high-precision gear hobbing system, which relates to the technical field of gear processing and comprises a first hob mechanism, a second hob mechanism, a rotating shaft and a base, wherein the upper end of the rotating shaft is used for clamping a tooth blank, the lower end of the rotating shaft is rotationally fixed on the base, the rotating shaft is driven to rotate through a first rotary driving assembly, and a first hob on the first hob mechanism and a second hob on the second hob mechanism are uniformly distributed along the circumferential direction of the tooth blank so as to be respectively used for cutting and forming two tooth surfaces in the same tooth slot; the invention also provides a high-precision gear hobbing method, which comprises the following steps: two hobs are uniformly distributed in the circumferential direction of a tooth blank to be processed and are respectively used for cutting and forming two tooth surfaces in the same tooth groove, so that the processing precision of the straight bevel gear can be improved.
Description
Technical Field
The invention relates to the technical field of gear machining, in particular to a high-precision gear hobbing system and method.
Background
The straight bevel gear has the advantages of convenient design and installation, good transmission performance and the like, and is widely applied to various industries at present. The existing processing methods include forging, gear shaping, double-cutter milling and the like.
The forging is only suitable for mass production, and can not well meet the requirements of flexible production and increasingly single-piece small-batch production, and the gear shaping process and the double-cutter milling process have low efficiency and low processing precision.
Disclosure of Invention
The invention aims to provide a high-precision gear hobbing system and a high-precision gear hobbing method, which are used for solving the problems in the prior art and improving the processing precision of a straight bevel gear.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides a high-precision gear hobbing system and a high-precision gear hobbing method, wherein the high-precision gear hobbing system comprises a first hob mechanism, a second hob mechanism, a rotating shaft and a base, the upper end of the rotating shaft is used for clamping a tooth blank, the lower end of the rotating shaft is rotationally fixed on the base, the rotating shaft is driven to rotate through a first rotary driving assembly, and a first hob on the first hob mechanism and a second hob on the second hob mechanism are uniformly distributed along the circumferential direction of the tooth blank so as to be respectively used for cutting and forming two tooth surfaces in the same tooth groove.
Preferably, the first hob is left-handed, the second hob is right-handed, and the steering direction of the first hob and the steering direction of the second hob are opposite to the direction of the own spin line.
Preferably, the first hob and the second hob are helical gear rolling cutters.
Preferably, the first hob mechanism comprises a first hob, a first bracket, a second rotary driving assembly and a first moving mechanism, the first hob is rotationally connected to the first bracket and driven by the second rotary driving assembly, the first moving mechanism is fixed on the base, the moving end of the first moving mechanism is fixedly connected with the bracket, the second hob mechanism comprises a second hob, a second bracket, a third rotary driving assembly and a second moving mechanism, the second hob is rotationally connected to the second bracket and driven by the third rotary driving assembly, the second moving mechanism is fixed on the base, and the moving end of the second moving mechanism is fixedly connected with the bracket.
Preferably, the first moving mechanism and the second moving mechanism are industrial robot arms.
Preferably, the first rotary driving assembly, the second rotary driving assembly and the third rotary driving assembly are all motors.
The invention also provides a high-precision gear hobbing method, which comprises the following steps: two hobs are uniformly distributed in the circumferential direction of a tooth blank to be processed and are respectively used for cutting and forming two tooth surfaces in the same tooth slot.
Preferably, one hob is left-handed and the other roll is right-handed, and the rotation directions of the two hob are opposite to the direction of the own spin line.
Compared with the prior art, the invention has the following technical effects:
the invention provides a high-precision gear hobbing system and a high-precision gear hobbing method, which adopt two hob mechanisms to be uniformly distributed in the circumferential direction of a tooth blank and are respectively used for cutting and forming two tooth surfaces in the same tooth groove, so that the tooth groove of a straight-tooth type conical gear is decomposed into tooth grooves of two helical gears to be processed, the movement route of the hob mechanism is simplified, the processing of the straight-tooth type conical gear is more stable, and the processing precision of the straight-tooth type conical gear is improved; and the two hob mechanisms are uniformly distributed in the circumferential direction of the tooth blank, and in the cutting process, the radial force of the two hob mechanisms on the tooth blank can be balanced, so that the eccentricity of the tooth blank is reduced, and the machining precision of the straight bevel gear is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a high precision gear hobbing system according to the present invention;
in the figure: the novel tooth cutter comprises a first hob, a second hob, a 3-rotating shaft, a 4-base, a 5-tooth blank, a 6-first bracket and a 7-second bracket.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a high-precision gear hobbing system and a high-precision gear hobbing method, which are used for solving the problems in the prior art and improving the processing precision of a straight bevel gear.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Example 1
The embodiment provides a high-precision gear hobbing system, as shown in fig. 1, the high-precision gear hobbing system includes a first hob mechanism, a second hob mechanism, a rotating shaft 3 and a base 4, the base 4 may be a workbench or a lathe, etc., the upper end of the rotating shaft 3 is used for clamping a gear blank, the clamping structure refers to the existing clamping structure, not specifically described herein, the lower end of the rotating shaft 3 is rotationally fixed on the base 4 through a rotating bearing, the rotating shaft 3 is rotationally driven by a first rotary driving component, a first hob 1 on the first hob mechanism and a second hob 2 on the second hob mechanism are uniformly distributed along the circumferential direction of the gear blank to be respectively used for cutting and forming of two tooth surfaces in the same tooth slot, specifically, the first hob mechanism includes a first hob 1, a first bracket 6, a second rotary driving component and a first moving mechanism, the first hob 1 is rotationally connected on the first bracket 6, the bottom of the first moving mechanism is fixed on the base 4 through bolts, the moving end of the first moving mechanism is fixedly connected with the bracket, the second hob mechanism comprises a second hob 2, a second bracket 7, a third rotary driving assembly and a second moving mechanism, the second hob 2 is rotationally connected on the second bracket 7 and is driven in a chain or gear mode through the third rotary driving assembly, the bottom of the second moving mechanism is fixed on the base 4 through bolts, the moving end of the second moving mechanism is fixedly connected with the bracket, the first hob 1 is in a left-hand rotation state, the second hob 2 is in a right-hand rotation state, the steering direction of the first hob 1 and the steering direction of the second hob 2 are opposite to the direction of the own rotation line, the first hob 1 and the second hob 2 are helical gear cutters, still preferably, the cutting sides of the first hob 1 and the second hob 2 are sharpened and the strength is enhanced, so that the machining process of the first hob 1 and the second hob 2 is reduced; the first moving mechanism and the second moving mechanism are industrial robot arms (not shown in the figure), and can also be moving mechanisms sliding in three directions by XYZ, and the first rotary driving assembly, the second rotary driving assembly and the third rotary driving assembly are all motors.
In the specific implementation process, the first moving mechanism, the second moving mechanism, the first rotating assembly, the second rotating assembly and the third rotating assembly are electrically connected with the control module, and the control module is used for carrying out coordination work, the control module is one of a computer, a single chip microcomputer, a chip and the like, the tooth blank is fixed on the rotating shaft 3, the first hob 1 in the first hob mechanism and the second hob 2 in the second hob mechanism are controlled to be uniformly distributed in the circumferential direction of the tooth blank through the control module and move at a set position, then the processing is carried out through the control of the control module, a processing program can be programmed according to actual requirements, and the steering direction of the first hob 1 and the steering direction of the second hob 2 are opposite to the self-rotation direction in the processing process.
In the high-precision gear hobbing system in the embodiment, two hob mechanisms are uniformly distributed in the circumferential direction of a tooth blank and are respectively used for cutting and forming two tooth surfaces in the same tooth groove, so that the tooth groove of the straight-tooth type bevel gear is decomposed into tooth grooves of two bevel gears to be processed, the movement route of the hob mechanism is simplified, the processing of the straight-tooth type bevel gear is more stable, and the processing precision of the straight-tooth type bevel gear is improved; and the two hob mechanisms are uniformly distributed in the circumferential direction of the tooth blank, and in the cutting process, the radial force of the two hob mechanisms on the tooth blank can be balanced, so that the eccentricity of the tooth blank is reduced, and the machining precision of the straight bevel gear is further improved.
Example two
The embodiment provides a high-precision gear hobbing method, which comprises the following steps that two hob are uniformly distributed in the circumferential direction of a gear blank to be processed and are respectively used for cutting and forming two tooth surfaces in the same tooth groove, wherein one hob rotates leftwards, the other hob rotates rightwards, and the rotation directions of the two hob are opposite to the rotation direction of the hob.
According to the high-precision gear hobbing method in the embodiment, two hob mechanisms are uniformly distributed in the circumferential direction of the tooth blank and are respectively used for cutting and forming two tooth surfaces in the same tooth groove, so that the tooth groove of the straight-tooth type bevel gear is decomposed into tooth grooves of two bevel gears to be processed, the movement route of the hob mechanism is simplified, the processing of the straight-tooth type bevel gear is more stable, and the processing precision of the straight-tooth type bevel gear is improved; and the two hob mechanisms are uniformly distributed in the circumferential direction of the tooth blank, and in the cutting process, the radial force of the two hob mechanisms on the tooth blank can be balanced, so that the eccentricity of the tooth blank is reduced, and the machining precision of the straight bevel gear is further improved.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (8)
1. A high-precision gear hobbing system and method are characterized in that: comprising the following steps: the gear tooth device comprises a first hob mechanism, a second hob mechanism, a rotating shaft and a base, wherein the upper end of the rotating shaft is used for clamping a gear blank, the lower end of the rotating shaft is rotationally fixed on the base, the rotating shaft is driven to rotate through a first rotary driving assembly, and a first hob on the first hob mechanism and a second hob on the second hob mechanism are uniformly distributed along the circumferential direction of the gear blank so as to be respectively used for cutting and forming two tooth surfaces in the same tooth groove.
2. The high precision gear hobbing system and method as set forth in claim 1, wherein: the first hob is left-handed, the second hob is right-handed, and the steering direction of the first hob and the steering direction of the second hob are opposite to the direction of the own spiral line.
3. The high precision gear hobbing system and method as set forth in claim 1, wherein: the first hob and the second hob are helical gear rolling cutters.
4. The high precision gear hobbing system and method as set forth in claim 1, wherein: the first hob mechanism comprises a first hob, a first support, a second rotary driving assembly and a first moving mechanism, the first hob is rotationally connected to the first support and driven by the second rotary driving assembly in a transmission mode, the first moving mechanism is fixed on the base, the moving end of the first moving mechanism is fixedly connected with the support, the second hob mechanism comprises a second hob, a second support, a third rotary driving assembly and a second moving mechanism, the second hob is rotationally connected to the second support and driven by the third rotary driving assembly in a transmission mode, the second moving mechanism is fixed on the base, and the moving end of the second moving mechanism is fixedly connected with the support.
5. The high-precision gear hobbing system and method as claimed in claim 4, wherein: the first moving mechanism and the second moving mechanism are industrial robot arms.
6. The high-precision gear hobbing system and method as claimed in claim 4, wherein: the first rotary driving assembly, the second rotary driving assembly and the third rotary driving assembly are all motors.
7. A high-precision gear hobbing method is characterized in that: the method comprises the following steps: two hobs are uniformly distributed in the circumferential direction of a tooth blank to be processed and are respectively used for cutting and forming two tooth surfaces in the same tooth slot.
8. The high-precision gear hobbing method as claimed in claim 7, wherein: one hob is left-handed and the other roll is right-handed, and the rotation directions of the two hob are opposite to the direction of the self-rotation line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311704040.XA CN117548745A (en) | 2023-12-12 | 2023-12-12 | High-precision gear hobbing system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311704040.XA CN117548745A (en) | 2023-12-12 | 2023-12-12 | High-precision gear hobbing system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117548745A true CN117548745A (en) | 2024-02-13 |
Family
ID=89823214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311704040.XA Withdrawn CN117548745A (en) | 2023-12-12 | 2023-12-12 | High-precision gear hobbing system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117548745A (en) |
-
2023
- 2023-12-12 CN CN202311704040.XA patent/CN117548745A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20240213 |