CN1754642A - Electrochemical machinery polishing processing method for gear teeth face - Google Patents
Electrochemical machinery polishing processing method for gear teeth face Download PDFInfo
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- CN1754642A CN1754642A CN 200410083048 CN200410083048A CN1754642A CN 1754642 A CN1754642 A CN 1754642A CN 200410083048 CN200410083048 CN 200410083048 CN 200410083048 A CN200410083048 A CN 200410083048A CN 1754642 A CN1754642 A CN 1754642A
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Abstract
This invention discloses one method to adopt impulse chemical process gear plane, wherein, It amends the gear 2 and gear 1 as negative electrode of process through one set of insurance structure to keep certain gap in the interaction between negative gear and part; In process, the part gear and negative gear are filled with electrolytic solution and the part gear is connected to direct current power to form one layer of passivating film; one honing wheel with same mode meshed with another part to form mechanic script in moving process to remove the oxidation film; in rotation process of part, the electric and chemical matches with mechanic to lower the gear roughness.
Description
Technical field:
The present invention relates to a kind of polishing processing method of the metal gear flank of tooth.
Background technology:
The whole processing method of the gear teeth face of extensive use mainly contains shaving, roll flute and gear honing in the actual production at present.The economic roughness Ra value of the shaving flank of tooth is about 1.6 μ m～0.8 μ m, and the economic roughness Ra value of the roll flute flank of tooth is about 0.8 μ m～0.2 μ m, and the economic roughness Ra value of the gear honing flank of tooth is about 0.4 μ m～0.2 μ m.Wherein, shaving processes efficient is higher, but it is mainly used in soft flank of tooth processing, the economic roughness that can reach is also higher relatively, and roll flute and plover tooth process can be processed hardened face gear, and the economic roughness that can reach is also relatively low, but, roll flute equipment and gear honing device structure are complicated and cost an arm and a leg, and there are loss in abrasive grinding wheel and honing wheel and stop up easily in process, need often finishing.
Require lower gear will adopt usually for tooth-face roughness and throw tooth or gear lapping technology, if will obtain the extremely low flank of tooth of roughness, must adopt superfine abrasive material, for raising the efficiency, need change the granularity of abrasive material in the technical process with the reduction of tooth-face roughness, this has increased production cost.Particularly, be difficult under the prerequisite that guarantees production efficiency, reach the polishing requirement for large-scale, super-huge gear.Thereby, throw tooth or gear lapping technology, only on the very high gear of quality requirement, use at present.
The electrolytic honing gear process technology is a method of finishing gears of Dalian University of Technology's exploitation.Thereby this method utilizes hocketing of electrochemical action and mechanism to make flank of tooth metal removal realize processing.But because the electrolyte of this method adopts the injection mode of splash, be difficult to be full of whole machining area, causing the material of the flank of tooth to have only part is to remove by electrochemical action, most of metal is still removed by the ablation of honing wheel, in addition, because the small size negative electrode generate formula scanning workpiece gear flank of tooth has been adopted in its tool cathode design, make the electrochemical action skewness of gear teeth face also abundant inadequately, the raising effect of flank of tooth quality is not clearly, therefore, compare with plover tooth process, electrolytic honing gear fails to demonstrate its superiority, has limited its application and popularization aborning.
Summary of the invention:
The polishing processing method that the purpose of this invention is to provide a kind of gear teeth face, this method can be reduced to 0.05 μ m～0.02 μ m from 3.2 μ m～0.2 μ m what one in-process made tooth-face roughness Ra value stabilization.
For achieving the above object, the design feature of combination gear of the present invention, the polishing that the electrochemical machinery polishing process technology is applied to gear teeth face is processed, and this method equipment is simple, cheap.The principle of the invention can be used for involute and arc toothed straight spur gear, helical gears, straight spur gear axle, helical gears axle, straight-tooth umbrella (awl) gear etc., spiral umbrella (awl) gear etc.
The object of the present invention is to provide a kind of electrochemical machinery polishing processing method of the metal gear flank of tooth, it may further comprise the steps:
A, the profile of tooth of gear (2 ') is revised, made its instrument gear (2) as electrochemical action, the modulus of described gear (2 ') is identical with the workpiece gear modulus;
B, workpiece gear and instrument gear are positioned, make both equate at " engagement " position gear teeth two side clearances;
C, workpiece gear is connect positive source, the instrument gear connects power cathode, and guarantees mechanism by a cover gap, makes instrument gear and workpiece gear remain certain interval between the flank of tooth in motion process; In the course of work, be full of electrolyte in the gap of workpiece gear and instrument gear, make the workpiece gear surface produce electrochemical action, form one deck passivating film; Simultaneously, honing wheel identical with the workpiece gear modulus and workpiece gear are in another position engagement, in the motion process workpiece gear flank of tooth is formed mechanical scraping action, the passivating film that electrochemical action forms is wiped off, in the workpiece motion s process, the coupling of electrochemical action and mechanism makes the workpiece gear tooth-face roughness be reduced.
Description of drawings:
Fig. 1 is the electrochemical machinery polishing processing method for gear teeth face schematic diagram;
Fig. 2 is the profile of tooth figure before and after the correction of the flank shape of the instrument form of gear tooth;
Fig. 3 and Fig. 4 make the structural representation that keeps two kinds of methods of constant clearance between the instrument gear and the workpiece gear flank of tooth;
The specific embodiment:
The present invention will be further described below in conjunction with accompanying drawing and concrete embodiment.
Fig. 1 is the electrochemical machinery polishing processing method for gear teeth face schematic diagram.With one with the identical gear of processed gear 1 modulus, by profile of tooth is carried out certain correction, instrument 2 as electrochemical action, guarantee mechanism by a cover gap, make instrument gear and workpiece gear in motion process, remain certain interval between the flank of tooth, in the course of work, be full of electrolyte 5 between workpiece gear and instrument gear, workpiece gear connects the positive pole of power supply 3, the instrument gear connects power cathode, and the workpiece gear surface produces electrochemical action, forms one deck passivating film, simultaneously, a honing wheel 4 identical with the workpiece gear modulus meshes at another position with workpiece gear, in the motion process workpiece gear flank of tooth is formed mechanical scraping action, the oxide-film that electrochemical action forms is wiped off, in the workpiece gear rotation process, the reasonable coupling of electrochemical action and mechanism is reduced the workpiece gear tooth-face roughness.
In order to make the workpiece gear flank of tooth produce sufficient electrochemical action, the flank of tooth that can the entire tool gear partly is that the flank of tooth part of current-carrying part or entire tool gear and tooth root circular arc portion are all as current-carrying part.
Fig. 2 is the instrument tooth-formation of gear.Produce the working clearance in order to make between workpiece gear and instrument gear teeth face, the instrument form of gear tooth has been done certain correction, adopt a gear identical with processed module as basic gear 2 ', on its basis, with flank part and the inside indentation machining gap of tooth root circular arc portion value, when mounted, according to reference center distance gear is installed and is formed backlash.
Fig. 3 and Fig. 4 make two kinds of methods that keep constant clearance between the instrument gear and the workpiece gear flank of tooth.In order to make instrument gear and workpiece gear remain constant clearance between the flank of tooth in process, the present invention has adopted two kinds of implementation methods.First method is installed on workpiece gear installation shaft 7 and its modulus, the gear 9 that the number of teeth is all identical with modification coefficient, this gear can adopt any gear in the middle of the processed gear, one gear 10 identical with the number of teeth with its modulus also is installed on instrument gear installation shaft 8, this gear is non-profile modified gear, these two gears are called Positioning Gear, before the processing, workpiece gear and instrument gear are positioned, make both equate at " engagement " position gear teeth two side clearances, in the process, guarantee gap between workpiece gear and the instrument gear by two Positioning Gears; Another method independently is installed on workpiece gear installation shaft and the instrument gear installation shaft for adopting two stepper motors or servomotor 11,12, position before the processing, make the workpiece gear flank of tooth equate with instrument gear tooth two side clearances, add man-hour, gear ratio according to workpiece gear and instrument gear, by two motor drive workpiece gears and instrument gear, make it remain constant clearance in the course of the work between the flank of tooth.
Even for the electrochemical action that makes the flank of tooth, it is the electrolyte that circulates that " engagement " of instrument gear and workpiece gear part is all placed electrolyte, this electrolyte.
Claims (9)
1, a kind of electrochemical machinery polishing processing method of the metal gear flank of tooth, it may further comprise the steps:
A, the profile of tooth of gear (2 ') is revised, made its negative electrode gear (2) as electrochemical action, the modulus of described gear (2 ') is identical with the workpiece gear modulus;
B, workpiece gear and negative electrode gear are positioned, make both equate at " engagement " position gear teeth two side clearances;
C, workpiece gear is connect positive source, the negative electrode gear connects power cathode, and guarantees mechanism by the gap, makes negative electrode gear and workpiece gear remain certain interval between the flank of tooth in motion process; In the course of work, be full of electrolyte in the gap of workpiece gear and negative electrode gear, make the workpiece gear surface produce electrochemical action, form one deck passivating film; Simultaneously, honing wheel identical with the workpiece gear modulus and workpiece gear are in another position engagement, in the motion process workpiece gear flank of tooth is formed mechanical scraping action, the passivating film that electrochemical action forms is wiped off, in the workpiece motion s process, the coupling of electrochemical action and mechanism makes the workpiece gear tooth-face roughness be reduced.
2, the method for claim 1 is characterized in that: the flank of tooth of whole negative electrode gear partly for the flank of tooth of current-carrying part or whole negative electrode gear and tooth root circular arc portion all as current-carrying part, so that the workpiece gear flank of tooth produces sufficient electrochemical action.
3, the method for claim 1, it is characterized in that: described gap guarantees that mechanism is a pair of Positioning Gear (9,10), first Positioning Gear (9) is installed on the workpiece gear installation shaft (7), and second Positioning Gear (10) is installed on the negative electrode gear installation shaft (8).
4, method as claimed in claim 3 is characterized in that: first Positioning Gear (9) is all identical with modulus, the number of teeth and the modification coefficient of workpiece gear; Second Positioning Gear (10) is identical with the number of teeth and the modulus of negative electrode gear, and is non-profile modified gear.
5, the method for claim 1 is characterized in that: described gap guarantees that mechanism is two motors (11,12), and these two motors are installed in respectively on workpiece gear installation shaft and the negative electrode gear installation shaft.
6, the method for claim 1 is characterized in that: described correction is flank part and the inside indentation machining gap of the tooth root circular arc portion value with gear (2 ').
7, the method for claim 1 is characterized in that: honing wheel and workpiece gear are Elastic Contact, by regulating the pressure to workpiece gear, can realize the coupling of mechanism and electrochemical action.
8, the method for claim 1 is characterized in that: the mate of negative electrode gear and workpiece gear all places electrolyte, and this electrolyte is the electrolyte that circulates.
9, the method for claim 1 is characterized in that: the roughness Ra value of processed workpiece gear teeth face is 0.05 μ m～0.02 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410083048 CN1754642A (en) | 2004-09-27 | 2004-09-27 | Electrochemical machinery polishing processing method for gear teeth face |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410083048 CN1754642A (en) | 2004-09-27 | 2004-09-27 | Electrochemical machinery polishing processing method for gear teeth face |
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| CN1754642A true CN1754642A (en) | 2006-04-05 |
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| CN 200410083048 Pending CN1754642A (en) | 2004-09-27 | 2004-09-27 | Electrochemical machinery polishing processing method for gear teeth face |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225509A (en) * | 2011-05-04 | 2011-10-26 | 天津天海同步科技股份有限公司 | Application of surface finishing technique for processing synchronizer gear hub |
| CN104278316A (en) * | 2013-07-01 | 2015-01-14 | 通用电气公司 | Method and apparatus for refurbishing turbine components |
| CN104789970A (en) * | 2015-04-29 | 2015-07-22 | 柳州玲通科技有限责任公司 | Surface treatment process of wheel hub bearing of agricultural sowing machine |
| CN111168175A (en) * | 2020-01-10 | 2020-05-19 | 安徽工业大学 | Electrolytic grinding cathode, cathode processing method, electrolytic grinding system containing cathode and use method |
| CN111761140A (en) * | 2020-06-28 | 2020-10-13 | 浙江三欢齿轮有限公司 | Gear shaving machine |
| CN114473089A (en) * | 2021-12-15 | 2022-05-13 | 厦门大学 | Method for removing large generated electrolytic allowance of high-hardness material face gear and machining device |
-
2004
- 2004-09-27 CN CN 200410083048 patent/CN1754642A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225509A (en) * | 2011-05-04 | 2011-10-26 | 天津天海同步科技股份有限公司 | Application of surface finishing technique for processing synchronizer gear hub |
| CN104278316A (en) * | 2013-07-01 | 2015-01-14 | 通用电气公司 | Method and apparatus for refurbishing turbine components |
| CN104278316B (en) * | 2013-07-01 | 2018-10-19 | 通用电气公司 | Method and apparatus for renovating turbine components |
| CN104789970A (en) * | 2015-04-29 | 2015-07-22 | 柳州玲通科技有限责任公司 | Surface treatment process of wheel hub bearing of agricultural sowing machine |
| CN111168175A (en) * | 2020-01-10 | 2020-05-19 | 安徽工业大学 | Electrolytic grinding cathode, cathode processing method, electrolytic grinding system containing cathode and use method |
| CN111168175B (en) * | 2020-01-10 | 2021-02-19 | 安徽工业大学 | Electrolytic grinding cathode, cathode processing method, electrolytic grinding system containing cathode and use method |
| CN111761140A (en) * | 2020-06-28 | 2020-10-13 | 浙江三欢齿轮有限公司 | Gear shaving machine |
| CN114473089A (en) * | 2021-12-15 | 2022-05-13 | 厦门大学 | Method for removing large generated electrolytic allowance of high-hardness material face gear and machining device |
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