CN102784971A - Adjacent worn tooth translocation process capable of improving machining accuracy of single pitch - Google Patents
Adjacent worn tooth translocation process capable of improving machining accuracy of single pitch Download PDFInfo
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- CN102784971A CN102784971A CN2012102799236A CN201210279923A CN102784971A CN 102784971 A CN102784971 A CN 102784971A CN 2012102799236 A CN2012102799236 A CN 2012102799236A CN 201210279923 A CN201210279923 A CN 201210279923A CN 102784971 A CN102784971 A CN 102784971A
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Abstract
The invention discloses an adjacent worn tooth translocation process capable of improving machining accuracy of a single pitch. A toothed blank is moved forwards or backwards with one tooth staggered relative to an indexing component, and teeth with relative machining allowance in the worn toothed blank are machined based on the principle of interference of two groups of single pitch error curves. According to the direction and the frequency of translocation, the adjacent worn tooth translocation process can be realized by primary adjacent tooth translocation with 'one tooth staggered in a forward direction' or 'one tooth staggered in a backward direction' and can also be realized by twice adjacent tooth translocation with 'one tooth staggered in the forward direction and then two teeth staggered in the backward direction' or 'one tooth staggered in the backward direction and then two teeth staggered in the forward direction'. The single pitch error can be reduced by about 20 percent based on the existing process for worn teeth, and the single pitch accuracy of a worn toothed blank can be improved by one level. The adjacent worn tooth translocation process can be applied to the existing device with worn teeth, and has the advantages of low cost, easy operation and good value of application and market prospects, and the single pitch machining accuracy can be improved significantly.
Description
Technical field
The invention belongs to the accurate manufacturing technology of gear and cutter for gear wheel field, relate to a kind of adjacent tooth transposition gear-grinding process that improves single tooth pitch machining accuracy.
Background technology
Indexing accuracy is one of most important index in the gear or the cutter for gear wheel accuracy of manufacture.Wherein single tooth pitch deviation f
PtBeing one of four essential items for inspection stipulating among gear standard GB/T 10095.1-2008 and the gear international standard ISO1328-1:1995, also is simultaneously one of difficult problem that needs to be resolved hurrily in processing of ultraprecision gear or cutter for gear wheel and the test.The normal precision round subsection dish that adopts is as indexing component processing ultraprecision gear or cutter for gear wheel in the commercial production.Theoretical according to error propagation, the single tooth pitch deviation of processed gear or cutter for gear wheel will be higher than the single tooth pitch deviation of indexing component.Therefore, improve by the single tooth pitch machining accuracy of roll flute wheel, method commonly used is the more high-precision indexing means of innovative design.For example, Chinese invention patent [ZL200910309243.2] has been announced a kind of gear grinding machines of the 1-0 of realization level tooth pitch machining accuracy with high accuracy end tooth automatics, and wherein accurate end-toothed disc also is the mechanical dividing element that has best result degree precision up to now.High-precision indexing component is that the single tooth pitch processing of 1-0 level provides good solution with measuring technology, yet still can be higher than the indexing accuracy of precision round subsection element by the tooth pitch machining accuracy of roll flute wheel or cutter for gear wheel.In addition, because the problem of aspects such as manufacturing cost and intellectual property, this patent of invention is not carried out industrialization as yet.Except adopting high-precision indexing means, the processing technology of innovation also can improve by the single tooth pitch machining accuracy of roll flute wheel or cutter for gear wheel, and it is low to have a cost, advantages of simple operation.Yet aspect the single tooth pitch processing technology of improvement, not seeing has the related patent U.S. Patent No. document.
Summary of the invention
For improving, the invention provides a kind of adjacent tooth transposition gear-grinding process method that on existing roll flute equipment, can adopt by the single tooth pitch machining accuracy of roll flute wheel or cutter for gear wheel.
Technical scheme of the present invention is following:
The single tooth pitch deviation f of gear
PtBe to cannot say for sure one of precision index of demonstrate,proving in the gear essential items for inspection most.Its error source mainly from indexing component (for example: the random error in foozle and process index dial).Though the single tooth pitch deviation of the teeth groove of precision round subsection dish is concerning belonging to systematic error by the processing of roll flute wheel; But the error in index dial teeth groove self process has certain randomness, causes the single pitch error curve of processed gear or cutter for gear wheel to present some stochastic behaviour.No matter adopt which kind of indexing system, presented just one group of closed curve of fluctuations by roll flute wheel or the single pitch error curve of cutter for gear wheel, and the algebraical sum of single tooth pitch deviation is zero more.The single tooth pitch deviation (systematic error) that promptly includes indexing component in this error curve also comprises random error and operate miss in the process etc.
If with respect to the indexing component tooth that misplaces, then the error curve of two groups of single tooth pitches will interfere phenomenon with the tooth base, cause part to have the flank of tooth of relative allowance to participate in reprocessing, and part there is not the flank of tooth of relative allowance not participate in reprocessing.As long as rationally the number of teeth or the allowance of reprocessing is participated in control; Utilize the principle of the single pitch error interference of adjacent two teeth can reduce to have the single tooth pitch deviation of relative some flank of tooth of allowance, thereby reach single tooth pitch machining accuracy is taken turns in raising by roll flute purpose.The adjacent tooth transposition gear-grinding process of the single tooth pitch machining accuracy of raising that the present invention that Here it is proposes.Because adjacent tooth transposition gear-grinding process belongs to the micro-precision grinding process; And feed accuracy directly influences the machining accuracy of single tooth pitch; Therefore, half tooth that the number of teeth that control participates in reprocessing should slightly surpass total number of teeth is good, and control allowance is the peak value of original single tooth pitch aberration curve.
Number of times according to the direction of transposition and transposition is different, and adjacent tooth transposition gear-grinding process can be realized through " transposition one tooth forward " or " transposition one tooth backward " two kinds of once adjacent tooth transpositions; Also can realize through " earlier transposition one tooth transposition two teeth backward " forward then or " earlier transposition one tooth transposition two teeth forward " backward then two kinds of adjacent tooth transpositions of secondary.Two kinds of once adjacent tooth transpositions improve the theoretical effect unanimity of single tooth pitch machining accuracy, are finally differed the phase place of a tooth by the single tooth pitch aberration curve of roll flute wheel or cutter for gear wheel; It is in full accord that the transposition of the adjacent tooth transpositions of two kinds of secondaries improves the theoretical effect and the phase angle of single tooth pitch machining accuracy, and whole structure is superior to once adjacent tooth transposition.
Adjacent its beneficial effect of tooth transposition gear-grinding process provided by the invention is, need not increase any attachment device, on existing roll flute equipment, can adopt; Only increased the adjustment and the control of tooth base and indexing component relative installation in the roll flute operation, easy and simple to handle.Use adjacent tooth transposition gear-grinding process provided by the invention, can on existing gear-grinding process basis, reduce the single tooth pitch deviation about 20%, make by the tooth pitch precision of roll flute wheel and improve 1 grade (GB/T 10095.1-2008); Even if use high-precision indexing means, adopt transposition gear-grinding process provided by the invention also can further improve by the single tooth pitch machining accuracy of roll flute wheel or cutter for gear wheel.
Description of drawings
Not transposition of Fig. 1 time-division degree element with by the relative position of roll flute base.
The once adjacent backward tooth transposition sketch map of Fig. 2.
The adjacent tooth transposition of a kind of secondary of Fig. 3 sketch map.
The specific embodiment
At first use existing gear-grinding process and accomplish the fine finishining (as shown in Figure 1) of the flank of tooth, and measure the single tooth pitch deviation f of certain group flank of tooth
PtAccording to the required precision of processed gear or cutter for gear wheel, select once or the adjacent tooth transposition of secondary gear-grinding process then.If adopt once adjacent tooth transposition gear-grinding process, the tooth base is rotated the phase place of a tooth forward or backward with respect to indexing component, reprocess (as shown in Figure 2) then; The number of teeth outline that reprocessing is participated in control surpasses the half the of total number of teeth, or control allowance is the peak value of original single tooth pitch aberration curve, promptly is about 2f
PtAlso can adopt the adjacent tooth transposition of secondary gear-grinding process, i.e. transposition one tooth transposition two teeth (as shown in Figure 3) or transposition one tooth transposition two teeth backward then forward forward earlier then backward earlier.Each adjacent tooth transposition all will be controlled the number of teeth outline of participating in reprocessing and surpass the half the of total number of teeth, or control allowance is the peak value of the single tooth pitch aberration curve of processing nipper base.
Claims (2)
1. adjacent tooth transposition gear-grinding process that improves single tooth pitch machining accuracy; It is characterized in that; Through utilizing the principle of two groups of single pitch error curves interference by the roll flute base with respect to the indexing component tooth that misplaces, reprocessing is had some tooth of relative allowance in the roll flute base; The number of teeth outline of participating in reprocessing is the peak value of original single tooth pitch deviation above the half the of total number of teeth or control reprocessing surplus.
2. adjacent tooth transposition gear-grinding process as claimed in claim 1 is characterized in that, adopts " transposition one tooth forward " or " transposition one tooth backward " two kinds of once adjacent tooth transpositions to realize; Also can adopt " earlier transposition one tooth transposition two teeth backward " forward then or " earlier transposition one tooth transposition two teeth forward " backward then two kinds of adjacent tooth transpositions of secondary to realize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102799236A CN102784971A (en) | 2012-08-07 | 2012-08-07 | Adjacent worn tooth translocation process capable of improving machining accuracy of single pitch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102799236A CN102784971A (en) | 2012-08-07 | 2012-08-07 | Adjacent worn tooth translocation process capable of improving machining accuracy of single pitch |
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| CN102784971A true CN102784971A (en) | 2012-11-21 |
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| CN2012102799236A Pending CN102784971A (en) | 2012-08-07 | 2012-08-07 | Adjacent worn tooth translocation process capable of improving machining accuracy of single pitch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106457430A (en) * | 2014-06-12 | 2017-02-22 | 格里森工场 | Method of grinding gears |
-
2012
- 2012-08-07 CN CN2012102799236A patent/CN102784971A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 王立鼎: "在用分度盘分度的磨齿机上提高齿轮周节精度的途径", 《磨床与磨削》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106457430A (en) * | 2014-06-12 | 2017-02-22 | 格里森工场 | Method of grinding gears |
| CN106457430B (en) * | 2014-06-12 | 2019-12-13 | 格里森工场 | Method for grinding gear |
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Application publication date: 20121121 |