CN112475482B - Precision gear internal and external tooth pair phase manufacturing tool clamp and manufacturing method - Google Patents
Precision gear internal and external tooth pair phase manufacturing tool clamp and manufacturing method Download PDFInfo
- Publication number
- CN112475482B CN112475482B CN202011117471.2A CN202011117471A CN112475482B CN 112475482 B CN112475482 B CN 112475482B CN 202011117471 A CN202011117471 A CN 202011117471A CN 112475482 B CN112475482 B CN 112475482B
- Authority
- CN
- China
- Prior art keywords
- gear
- tooth
- central positioning
- planet
- external tooth
- 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.)
- Active
Links
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F5/00—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made
Abstract
The invention discloses a manufacturing tool clamp and a manufacturing method for internal and external tooth pair phases of a precision gear, wherein the manufacturing tool clamp comprises a central positioning mandrel and an orientation tray, a tooth socket is arranged on the outer surface of the central positioning mandrel, the orientation tray is arranged on the central positioning mandrel in a penetrating mode through a central hole arranged in the center of the orientation tray, the external tooth phase of the orientation tray is the same as the tooth socket phase of the central positioning mandrel, and a planet gear is clamped on the central positioning mandrel and used for processing the tooth profile of the planet gear. The invention is convenient for clamping, can ensure the error of the processing procedure, improve the yield of product production and reduce the matching difficulty of the planet gear during the assembly of the RV reducer.
Description
Technical Field
The invention relates to the technical field of precision gear manufacturing, in particular to a precision gear internal and external tooth pair phase manufacturing tool clamp and a manufacturing method.
Background
RV transmissions have two very strict technical indicators: the transmission error cannot exceed 1'; the Backlash (Backlash) is regulated according to the model of the RV reducer and is not more than 1 'to 1.5'. Furthermore, the total return difference, including the return difference caused by elastic deformation, cannot exceed 6' when operating under rated load. In order to achieve the designed precision, the requirements on the machining and matching precision of each part in the RV reducer are very high, the phase angle precision of inner and outer teeth of a planet gear is particularly important, the requirement on the high transmission error of the RV reducer determines that the dimensional error between 2-3 matched planet gears in the RV reducer is very small, and the angle error is within 0.02 degrees.
In order to achieve the required precision, the machining process of the planet gear is generally complex, generally 3 planet gears are machined simultaneously, the current machining process of the planet gear is to machine the internal spline of the planet gear firstly, and the common machining method of the internal spline is to machine internal tooth broaching; and then, processing external teeth, specifically, positioning the planetary teeth on a spline mandrel through an internal spline, and simultaneously processing the external teeth on 3 planetary teeth to be processed which are a group by using a gear hobbing machine. In actual production, the phenomenon that the inner tooth direction and the outer tooth direction of the planet gears are not consistent is easily caused by the existing processing method, and a group of outer teeth are directly processed at one time, so that the planet gears of a group have tooth direction errors easily, and the difficulty of matching the eccentric shaft with the planet gears is increased when the RV reducer is assembled. Therefore, how to design a machining tool clamp which is convenient to clamp and can ensure machining procedure errors becomes a difficult problem of machining parts of the current RV reducer.
Disclosure of Invention
Aiming at the existing problems, the invention provides the tool clamp for manufacturing the internal and external tooth pair phase of the precision gear and the manufacturing method thereof, which are convenient to clamp, can ensure the error of a machining process, improve the yield of product production and reduce the matching difficulty of the planet gear during the assembly of the RV reducer.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an external tooth is to phase place manufacturing frock clamp in accurate gear, includes central positioning core axle and directional tray, central positioning core axle surface is equipped with the tooth's socket, directional tray wears to establish through the centre bore that its center set up central positioning core is epaxial, just the external tooth phase place of directional tray with central positioning core axle's tooth's socket phase place is the same, central positioning core is epaxial to press from both sides dress planet gear and is used for processing planet gear tooth profile.
Preferably, the precision gear internal and external tooth pair phase manufacturing tool fixture further comprises a positioning pin, a through hole is formed in the side face of the orientation tray, and the positioning pin penetrates through the through hole and is inserted into the tooth groove of the central positioning mandrel.
Preferably, the positioning pin has one, and is pressed by a fastening screw.
A method for manufacturing internal and external tooth pair phases of a precision gear comprises the following steps:
processing inner teeth of the planet gears in an inner tooth broaching mode;
installing the planetary gear with the processed internal teeth on a central positioning mandrel;
scanning the external teeth of the orientation tray by using a gear divider to obtain external tooth profile parameters of the orientation tray;
according to the external tooth profile parameters of the directional tray, reserving a margin of 0.3mm for processing the external tooth profile of the planet gear by the gear divider;
detecting errors of the inner tooth direction and the outer tooth direction of the planet teeth, and adjusting the machining parameters of the tooth divider according to the errors to obtain target machining parameters of the tooth divider;
and the gear divider finely processes the external gear profile of the planet gear according to the target processing parameters to obtain the qualified planet gear.
Preferably, the gear divider finely processes the external tooth profile of the planet gear according to the target processing parameter to obtain qualified planet gears, and the method comprises the following steps:
determining the target machining parameters as the dimensions of the machining drawing of the planet gear;
mounting at least one planet gear on a central positioning spindle;
and the gear divider performs cutting processing on the external tooth profile of the planet gear on the central positioning mandrel according to the target processing parameters to obtain qualified planet gears.
Compared with the prior art, the invention has the following beneficial effects:
the invention has simple structure, is convenient for clamping, and effectively reduces the noise of the whole machine during processing; the positioning pin penetrates through the through hole in the side face of the orientation tray and is inserted into the tooth socket of the central positioning mandrel, so that the central positioning mandrel and the orientation tray can be connected more tightly, the phase of the external teeth of the orientation tray is ensured to be the same as that of the tooth socket of the central positioning mandrel, the planetary teeth clamped on the central positioning mandrel can be positioned in the correct tooth direction, the error of a machining process is ensured, and the yield of product production is improved; when the planet gears are machined, the planet gears to be machined in the same batch are preprocessed, errors are calculated, machining parameters of machining equipment are adjusted according to the errors, and other planet gears are directly and finely machined according to the adjusted machining parameters, so that the machining errors can be eliminated in advance, the finished product rate of machining the planet gears is higher, the phase consistency of the inner teeth and the outer teeth of the planet gears is stronger, the matching difficulty of the planet gears during assembling of the RV reducer is effectively reduced, and the machining cost of the planet gears can be saved.
Drawings
FIG. 1 is a schematic structural view of a precision gear internal and external tooth pair phase manufacturing tooling fixture according to the present invention;
FIG. 2 is a flow chart of a method for manufacturing internal and external tooth pairs of a precision gear according to the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a precision gear internal and external tooth pair phase manufacturing tool fixture according to the present invention.
The utility model provides a frock clamp is made to internal and external tooth pair phase place of precision gear, includes central positioning core axle 1 and directional tray 2, and central positioning core axle 1 surface is equipped with tooth's socket 11, and directional tray 2 wears to establish on central positioning core axle 1 through central hole 20 that its center set up, and the external tooth 21 phase place of directional tray 2 is the same with the tooth's socket 11 phase place of central positioning core axle 1, presss from both sides dress planet gear 5 on central positioning core axle 1 and is used for processing planet gear profile of tooth.
In the embodiment, the design that the phase of the external teeth of the orientation tray is the same as the phase of the tooth grooves of the central positioning mandrel enables the planetary teeth clamped on the central positioning mandrel to keep consistent internal and external tooth directions when the external tooth profile is processed, processing of qualified planetary gears is facilitated, and the processing qualification rate of the planetary gears is improved. And the inner and outer tooth directions of the planet gears are consistent, so that the matching difficulty of the planet gears during the assembly of the RV reducer is reduced.
The planet gear clamping device is simple in structure, facilitates clamping of the planet gears, can clamp at least one planet gear at each time, can improve machining efficiency of the planet gears, and can well reduce noise of a whole machining device.
Optionally, the tooling fixture for manufacturing the internal and external tooth pairs of the precision gear according to the embodiment further includes a positioning pin 3, a through hole 22 is formed in the side surface of the orientation tray 2, and the positioning pin 3 is inserted into the tooth groove 11 of the central positioning mandrel 1 through the through hole 22.
Alternatively, there is one of the positioning pins 3, and it is pressed by a fastening screw 4.
In the structure, the positioning pin penetrates through the through hole in the side face of the orientation tray and is inserted into the tooth groove of the central positioning mandrel, so that the central positioning mandrel and the orientation tray are connected more tightly, the phase of the external teeth of the orientation tray is ensured to be the same as that of the tooth groove of the central positioning mandrel, the planetary teeth clamped on the central positioning mandrel can be positioned in the correct tooth direction, the error of a machining process is ensured, and the yield of product production is improved.
Referring to fig. 2, fig. 2 is a flow chart of a method for manufacturing internal and external tooth pairs of a precision gear according to the present invention.
A method for manufacturing internal and external tooth pair phases of a precision gear comprises the following steps:
s201, processing inner teeth of the planet gear in an inner tooth broaching mode;
s202, installing the planetary gear with the machined internal teeth on a central positioning mandrel;
s203, scanning the external teeth of the orientation tray by using a gear divider to obtain external tooth profile parameters of the orientation tray;
s204, reserving allowance of 0.3mm for the gear divider according to the external tooth profile parameters of the directional tray to process the external tooth profile of the planet gear;
s205, detecting errors of the inner tooth direction and the outer tooth direction of the planet teeth, and adjusting the machining parameters of the gear divider according to the errors to obtain target machining parameters of the gear divider;
in the embodiment of the invention, for a plurality of planet gears with the same production requirement, in order to avoid that the plurality of planet gears have tooth-direction size errors possibly caused by direct processing, one planet gear can be preprocessed by implementing the steps, then the error of production and processing is measured, and the processing parameters of processing equipment are adjusted according to the measured error value, so that correct processing parameters can be obtained, and qualified planet gears can be directly obtained by directly processing other planet gears by using the correct processing parameters, so that the processing yield of the planet gears is effectively improved, meanwhile, the number of the planet gears processed at a time can be adjusted at will, the processing efficiency of the planet gears can be further improved, and the matching difficulty of the planet gears during the assembly of the RV reducer is reduced;
s206, determining the target machining parameters as the dimensions of the machining drawing of the planet gear;
s207, mounting at least one planet gear on a central positioning mandrel;
and S208, the tooth divider performs cutting processing on the external tooth profile of the planet teeth on the central positioning mandrel according to the target processing parameters to obtain qualified planet teeth.
In the embodiment of the invention, the processed and manufactured planetary gear can be a new product, and can also be subjected to finish machining on the processed and error planetary gear, so that planetary gears of different groups can be combined into a speed reducer to realize the mutual matching of the planetary gears, the utilization rate of the stored planetary gears can be further improved, the number of the stored planetary gears is reduced, the occupied funds are saved, and the processing and manufacturing cost of the planetary gears can be saved.
Furthermore, the planet teeth produced and manufactured in the embodiment need to be subjected to heat treatment before assembly, but certain deformation is caused by the heat treatment, so that parameters of inner teeth and outer teeth of the planet teeth can be measured after the heat treatment of the planet teeth, and the planet teeth are grouped according to the measured parameters, so that the sizes of the inner splines OBD of a group of planet teeth are consistent, and the assembly of the RV reducer is also facilitated.
Compared with the prior art, the invention has the following beneficial effects:
the invention has simple structure, is convenient for clamping, and effectively reduces the noise of the whole machine during processing; the positioning pin penetrates through the through hole in the side face of the orientation tray and is inserted into the tooth socket of the central positioning mandrel, so that the central positioning mandrel and the orientation tray can be connected more tightly, the phase of the external teeth of the orientation tray is ensured to be the same as that of the tooth socket of the central positioning mandrel, the planetary teeth clamped on the central positioning mandrel can be positioned in the correct tooth direction, the error of a machining process is ensured, and the yield of product production is improved; when the planet gears are machined, the planet gears to be machined in the same batch are preprocessed, errors are calculated, machining parameters of machining equipment are adjusted according to the errors, and other planet gears are directly and finely machined according to the adjusted machining parameters, so that the machining errors can be eliminated in advance, the finished product rate of machining the planet gears is higher, the phase consistency of the inner teeth and the outer teeth of the planet gears is stronger, the matching difficulty of the planet gears during assembling of the RV reducer is effectively reduced, and the machining cost of the planet gears can be saved.
However, the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, which is intended to cover all the modifications and equivalents of the claims and the specification. In addition, the abstract and the title are provided to assist the patent document searching and are not intended to limit the scope of the invention.
Claims (5)
1. The utility model provides an external tooth is to phase place manufacturing frock clamp in accurate gear, its characterized in that includes central positioning core axle and directional tray, central positioning core axle surface is equipped with the tooth's socket, directional tray wears to establish through the centre bore that its center set up central positioning core is epaxial, just the external tooth phase place of directional tray with the tooth's socket phase place of central positioning core axle is the same, central positioning core is epaxial to press from both sides and is adorned planetary gear and be used for processing planetary gear tooth profile.
2. The tool clamp for manufacturing the internal and external tooth pairs of the precision gear according to claim 1, further comprising a positioning pin, wherein a through hole is formed in the side face of the orientation tray, and the positioning pin penetrates through the through hole and is inserted into the tooth groove of the central positioning mandrel.
3. The tool clamp for manufacturing the internal and external tooth pair phase of the precision gear according to claim 2, wherein one of the positioning pins is pressed by a fastening screw.
4. A method for manufacturing internal and external tooth pair phases of a precision gear is characterized by comprising the following steps:
processing inner teeth of the planet gears in an inner tooth broaching mode;
installing the planetary gear with the processed internal teeth on a central positioning mandrel;
scanning the external teeth of the orientation tray by using a gear divider to obtain external tooth profile parameters of the orientation tray;
according to the external tooth profile parameters of the directional tray, reserving a margin of 0.3mm for processing the external tooth profile of the planet gear by the gear divider;
detecting errors of the inner tooth direction and the outer tooth direction of the planet teeth, and adjusting the machining parameters of the tooth divider according to the errors to obtain target machining parameters of the tooth divider;
and the gear divider finely processes the external gear profile of the planet gear according to the target processing parameters to obtain the qualified planet gear.
5. The method for manufacturing the internal and external tooth pair phase of the precision gear according to claim 4, wherein the tooth divider finely processes the external tooth profile of the planet gear according to the target processing parameter to obtain qualified planet teeth, and the method comprises the following steps:
determining the target machining parameters as the dimensions of the machining drawing of the planet gear;
mounting at least one planet gear on a central positioning spindle;
and the gear divider performs cutting processing on the external tooth profile of the planet gear on the central positioning mandrel according to the target processing parameters to obtain qualified planet gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011117471.2A CN112475482B (en) | 2020-10-19 | 2020-10-19 | Precision gear internal and external tooth pair phase manufacturing tool clamp and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011117471.2A CN112475482B (en) | 2020-10-19 | 2020-10-19 | Precision gear internal and external tooth pair phase manufacturing tool clamp and manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112475482A CN112475482A (en) | 2021-03-12 |
| CN112475482B true CN112475482B (en) | 2022-03-25 |
Family
ID=74926712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011117471.2A Active CN112475482B (en) | 2020-10-19 | 2020-10-19 | Precision gear internal and external tooth pair phase manufacturing tool clamp and manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112475482B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8251620B2 (en) * | 2007-03-02 | 2012-08-28 | GM Global Technology Operations LLC | Method and system to manufacture oriented internal and external gear teeth |
| CN201792050U (en) * | 2010-08-31 | 2011-04-13 | 常州减速机总厂有限公司 | Reducer gear chambering indexing device |
| CN106001785B (en) * | 2016-06-17 | 2021-11-30 | 浙江万里扬股份有限公司 | Gear hobbing frock and processing equipment |
| CN210877933U (en) * | 2019-11-21 | 2020-06-30 | 无锡市聚英机械制造有限公司 | Synchronous tooth alignment tool for internal and external teeth |
| CN112247287A (en) * | 2020-10-19 | 2021-01-22 | 中能（天津）智能传动设备有限公司 | Planet wheel gear grinding tool |
-
2020
- 2020-10-19 CN CN202011117471.2A patent/CN112475482B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112475482A (en) | 2021-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201338202Y (en) | Double eccentric crankshaft holding fixture | |
| CN107234288A (en) | Herringbone bear inner hole key slot symmetrical machining frock and processing method | |
| CN110293311B (en) | High-precision speed reducer duplex gear production device for robot and use method | |
| CN112475482B (en) | Precision gear internal and external tooth pair phase manufacturing tool clamp and manufacturing method | |
| CN113714571B (en) | Inner and outer tooth centering control structure of high-speed precision heavy-duty herringbone gear ring and machining method | |
| CN206083990U (en) | Through shaft terminal surface spline broaching machine | |
| CN212191606U (en) | Trimming clamp for stamping covering part | |
| CN102152149B (en) | High rigidity and flexibility locating clamp and locating method of locating clamp | |
| CN109202383A (en) | A kind of manufacturing method of seriation connecting flange | |
| CN107671344A (en) | A kind of processing method of the nonstandard internal spline of blind hole | |
| CN114289798B (en) | Spiral broach with large helix angle and small diameter spline | |
| CN102476263A (en) | Method for processing middle convex gear by adopting shaving cutter and modified shaving cutter | |
| CN112091629B (en) | Machining method of thin-wall gear ring with key groove | |
| CN205520572U (en) | Improve tool of crank and spline position accuracy | |
| CN215432409U (en) | Split type duplicate gear's pressfitting location frock | |
| CN2936520Y (en) | Indexing unit for processing large integral key shaft | |
| CN115365773B (en) | Transfer case driving sprocket and processing method thereof | |
| CN215145373U (en) | Clamping tool for inserting splines into inner holes of gears | |
| CN214867778U (en) | Sprocket internal and external tooth processing alignment device | |
| CN219274711U (en) | Gear positioning tool | |
| CN107127533A (en) | A kind of manufacturing process of two-piece type parallel graduated cam | |
| CN201769085U (en) | Gear grinding machine fixture device | |
| CN219465487U (en) | Accurate processing frock of gear hole keyway | |
| CN210817786U (en) | Device for machining duplicate gear by adopting numerical control milling machine | |
| CN212192701U (en) | Planetary gear grinds hole anchor clamps |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |