CN201909593U - Arc-shaped non-involute profile sample plate - Google Patents

Arc-shaped non-involute profile sample plate Download PDF

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Publication number
CN201909593U
CN201909593U CN2010206788985U CN201020678898U CN201909593U CN 201909593 U CN201909593 U CN 201909593U CN 2010206788985 U CN2010206788985 U CN 2010206788985U CN 201020678898 U CN201020678898 U CN 201020678898U CN 201909593 U CN201909593 U CN 201909593U
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CN
China
Prior art keywords
reference block
circular arc
axle
involute
radius
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Expired - Lifetime
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CN2010206788985U
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Chinese (zh)
Inventor
谢华锟
巫兴胜
郭曦
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CHENGDU TOOL RESEARCH INSTITUTE Co Ltd
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CHENGDU TOOL RESEARCH INSTITUTE Co Ltd
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Abstract

The utility model relates to an arc-shaped non-involute profile sample plate, which resolves the problem that large gear measuring instruments do not have eligible material standards. A reference block (4) is connected with a base body (5), a reference block arc processing center shaft (2) is connected with the base body (5), a measuring center shaft (1) is connected with the base body (5), the reference block arc processing center shaft (2) is parallel to the measuring center shaft, the pitch between the reference block arc processing center shaft (2) and the measuring center shaft is the radius R0 of a base circle of the sample plate, the reference block is provided with symmetrical arc surfaces which adopt the reference block arc processing center shaft (2) as an axle center, involute profile pitch circles are crossed at an arc middle point, the radius of each arc surface is the curvature radius of each involute profile circle, namely (R12-R01)1/2, R1 is the radius of each involute profile pitch circle, and high-precision tip holes are arranged on one end surface of two end surfaces of each of the measuring center shaft and the reference block arc processing center shaft.

Description

Circular arc type non-involute former
Technical field:
The utility model is relevant with material standard with the accuracy detection of gear measurement machine.
Background technology:
When using the precision of existing gear involute model demarcation, evaluation, check gear measuring instrument, the size of gear involute model should be tried one's best and the measurement range of instrument, especially be close with the detected gear product size of user, because the result that the gear measuring instrument of identifying through this model detects these gear products can be more accurate.This has reached the common recognition of industry.
The involute model base radius r that determines in the national standard ' GB/T6467-2001 gear involute model ' of China's issue at present bRange of size 25-400mm, China factory involute model that can dispatch from the factory as normal product at present in fact, its maximum base radius r bBe 300mm.Obviously, this can not cover and satisfy the needs of large gear accuracy detection, also and at present the measurement range of 2 meters and 3 meters gear detecting instruments being had of China greatly differs from each other: detection examination, the staking-out work of import large gear surveying instrument, there is same difficulty---lack the large scale involute model to be used for the benchmark transmission that the gear wheel flank profil is measured, measurement range reaches 3 meters gear measurement machine, but can only be by base radius r bIt is of common occurrence that the following involute model of 200mm carries out the helpless situation that accuracy of instrument checks and accepts.The necessity of exploitation large scale involute model is with urgent self-evident.But base radius r b1000mm is above, precision is in manufacturing, detection and even the demarcation of 1 μ m with interior high-accuracy large-scale involute model, is the extremely difficult thing of part, also all not have the relevant report of successfully developing both at home and abroad so far.
The utility model content:
The purpose of this utility model provides a kind of simple in structure, and is easy to manufacture, easy to use, and the accuracy of detection height can be checked the gear wheel surveying instrument, the non-involute former that can trace to the source.
The utility model is achieved in that
The utility model circular arc type non-involute former, reference block 4 is connected with matrix 5, and reference block circular arc machining center axle 2 is connected with matrix 5, and measuring center axle 1 is connected with matrix 5, reference block circular arc machining center axle 2 is parallel with the measuring center axle, and both distance between axles is model base radius R 0, what reference block had symmetry is the arc surface in axle center with reference block circular arc machining center axle 2, and the involute profile reference circle meets at arcuate midway point, and the radius of arc surface is the radius-of-curvature at the wide tooth cyclotomy of involute urve place, i.e. (R 1 2-R 0 2) 1/2, R 1Be the involute profile reference radius, an end face or the both ends of the surface of measuring center axle and reference block circular arc machining center axle have the high precision center hole.
Matrix 5 is two with reference block center line symmetry, each is connected two matrixes with 1 coaxial measuring center axle 1, each is connected with one or two coaxial reference block circular arc machining center axle 2, reference block 4 with reference block circular arc machining center axle coaxial or reference block between two benchmark circular arc machining center axles.
Matrix 5 is 1, reference block and reference block circular arc machining center coaxial connection of axle.
Reference block is circular arc dish or circular arc involute urve.
The utility model promptly adopts the non-involute model to substitute traditional involute model based on the theory of international standard approval.Situation at the involute urve gear wheel: the gear wheel base radius is big, the involute shape of gear-profile and and the circular curve of flank profil reference circle place radius-of-curvature between theoretical error be more or less the same, and the high-precision processing manufacturing of this circular arc and measure to demarcate and even benchmark is traced to the source all than being easier to, so the utility model adopts the circular arc basic pattern with counterpart profile reference circle place radius-of-curvature to substitute the gear wheel involute model.
The utility model proposes the circular arc type non-involute material standard of two kinds of versions---bent axle type (disc type and gear tooth-type) circular arc non-involute model and parallel shaft type (two or multiaxial type) circular arc non-involute model, the demand that precision is identified and benchmark transmits when detecting the large scale involute urve to satisfy gear measurement machine has the feasibility of processing and manufacturing simultaneously.
The utility model has following advantage:
1. the benchmark circular arc of reference block is made easyly, and the manufacturing accuracy height is particularly suitable for the manufacturing of large scale involute profile model;
2. but the benchmark circular arc of reference block has good precision traceability;
The benchmark circular curve of reference block under the situation that large scale gear is measured and the stripped deviation of actual tested involute profile shape little, help improving measuring accuracy;
4. can be used to detect left and right sides profile accuracy simultaneously;
5. need special measurement software, the theoretical error of compensating line and tested involute urve;
6, consider that reference block and processing axle, matrix etc. depart from the imbalance that the measuring center axle brings, and also have the supplemental support of corresponding adjustable and balancing power in the utility model.
The comparison and the advantage of the non-involute model in the utility model and the international standard:
1. non-involute reference field of the present utility model is an arc surface, its radius is that the distance of radius-of-curvature, its circle central axis and the model measuring center axle at flank profil involute urve cyclotomy place is the involute urve base radius, and is all different with the shape of plane, straight pin and ball model benchmark in the standard, parameter etc.
2. because reference measurement track of the present utility model is the arc surface with certain radius and certain centre distance, compare with the measurement track of non-involute models such as plane, straight pin type and ball-type in the international gear standard, more approaching with large scale involute profile shape, thereby reduced the measurement stroke of detection probe, also reduce the theoretical error compensation range, helped the raising of measuring accuracy; And the various non-involute models in the standard are more suitable for the measurement of small size involute gear tooth profile, for the measurement of large scale involute urve, even fully may be because range is too big, exceed the working range of measuring sonde sensor and can't carry out.
3. the theoretical error computing formula between reference measurement track and the involute urve is different with corresponding calculating compensation software.
4. for the location positioning precision of measuring sonde, all than with requiring height under the involute model detection case, more responsive when adopting the non-involute model; But when the large scale involute urve was measured, because measurement track of the present utility model and involute urve are very approaching, to the probe positions positioning accuracy request, other existing non-involute models did not need too high requirement relatively.
5. measuring process and existing non-involute model is the same.1) with gauge head positioning reference spare, accurately locate the gauge head locus, 2) gauge head is accurately adjusted to theoretical compensating gage and count initial point, 3) with measuring error zero setting, simultaneously the software compensation function is placed the compensation calculating reference point, 4) mobile gauge head to involute profile is measured reference position, 5) start apparatus measures position to terminal, 6) metrical information and the synchronous theoretical compensated information of computing machine that obtain of apparatus measures probe sensor reaches computing machine in real time, carry out obtaining the instrument synthesis precision of apparatus measures involute profile after the data processing, adopt of detection or the demarcation of the utility model non-involute model the involute urve measuring accuracy of gear measuring instrument thereby finish.
Description of drawings:
Fig. 1 is one of structural drawing of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is two of a structural drawing of the present utility model.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the vertical view of Fig. 3.
Fig. 6 is three of a structural drawing of the present utility model.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is four of a structural drawing of the present utility model.
Fig. 9 is the left view of Fig. 8.
Embodiment:
Embodiment 1:
Bent axle type circular arc non-involute model (Fig. 1,3) is mainly formed (securing member that can add installation shaft) by measuring center axle 1, reference block circular arc machining center axle 2 and 3, reference block (circular arc dish or circle arc tooth) 4, matrix 5.Axle 1 and axle 2 or and axle 3 two ends the high precision center hole is arranged, adopt the steel part that hardens to handle through ice-cold stability, can hollow; Axle 1 and axle 2 or and the axle 3 and the endoporus interference fit of matrix 5, connect reliable and stablely, and be parallel to each other.Reference block 4 (circular arc dish or circle arc tooth, the steel part that hardens is handled through ice-cold stability) fixedly connected with matrix 5 (such as: be threaded, interference fit, bonding, weld or as a whole).The axis of basic circle cambered surface (axle 2 or and axle 3) is parallel with measuring center axis (axle 1), and distance between axles is model base radius R0, and the radius of basic circle cambered surface is the radius-of-curvature at involute profile cyclotomy place, i.e. (R 1 2-R 0 2) 1/2R1 is the involute profile reference radius.
Bent axle type circular arc non-involute model also can be made through the finishing again of hardening after the ice-cold processing with a monoblock steel part.
Embodiment 2:
Parallel shaft type circular arc non-involute model (Fig. 6,8) mainly is made up of measuring center axle 1, reference block circular arc machining center axle 2 and 3, reference block (circular arc dish) 4, matrix 5, securing member 6.Axle 1 and axle 2 or and axle 3 two ends the high precision center hole is arranged, adopt the steel part that hardens to handle through ice-cold stability, can hollow; Axle 1 and axle 2 or and the axle 3 and the endoporus interference fit of matrix 5, connect reliable and stablely, and be parallel to each other.Reference block 4 can or reach axle 3 one with reference block axle 2, but also mount links together; Reference block 4 is handled through ice-cold stability for the steel part that hardens, fixedly connected with matrix 5 (such as: be threaded, interference fit, bonding, welding etc.).The axis of basic circle cambered surface (axle 2 or and axle 3) is parallel with measuring center axis (axle 1), and distance between axles is model base radius R0, and the radius of basic circle cambered surface is the radius-of-curvature at involute profile cyclotomy place, i.e. (R 1 2-R 0 2) 1/2

Claims (4)

1. circular arc type non-involute former, it is characterized in that reference block (4) is connected with matrix (5), reference block circular arc machining center axle (2) is connected with matrix (5), measuring center axle (1) is connected with matrix (5), reference block circular arc machining center axle (2) is parallel with the measuring center axle, and both distance between axles is model base radius R 0, what reference block had symmetry is the arc surface in axle center with reference block circular arc machining center axle (2), and the involute profile reference circle meets at arcuate midway point, and the radius of arc surface is the radius-of-curvature at the wide tooth cyclotomy of involute urve place, i.e. (R 1 2-R 0 2) 1/2, R 1Be the involute profile reference radius, an end face or the both ends of the surface of measuring center axle and reference block circular arc machining center axle have the high precision center hole.
2. former according to claim 1, it is characterized in that matrix (5) is two with reference block center line symmetry, each is connected two matrixes with 1 coaxial measuring center axle (1), each is connected with one or two coaxial reference block circular arc machining center axle (2), reference block (4) with reference block circular arc machining center axle coaxial or reference block between two benchmark circular arc machining center axles.
3. former according to claim 1 is characterized in that matrix (5) is 1, reference block and reference block circular arc machining center coaxial connection of axle.
4. former according to claim 1 is characterized in that reference block is circular arc dish or circle arc tooth.
CN2010206788985U 2010-12-24 2010-12-24 Arc-shaped non-involute profile sample plate Expired - Lifetime CN201909593U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102706306A (en) * 2012-03-01 2012-10-03 北京工业大学 Involute gear waviness sample plate
CN103162959A (en) * 2013-02-22 2013-06-19 北京工业大学 Multifunctional gear sample plate
CN108061651A (en) * 2017-12-21 2018-05-22 大连理工大学 A kind of common normals the involute master of gear such as self installation benchmark
CN109540060A (en) * 2018-12-26 2019-03-29 北京工业大学 A kind of large scale involute model design method suitable for evaluating involute checker device
CN112097705A (en) * 2020-08-04 2020-12-18 盐城工学院 Cycloid gear precision detection sample plate

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102706306A (en) * 2012-03-01 2012-10-03 北京工业大学 Involute gear waviness sample plate
CN102706306B (en) * 2012-03-01 2014-08-13 北京工业大学 Involute gear waviness sample plate
CN103162959A (en) * 2013-02-22 2013-06-19 北京工业大学 Multifunctional gear sample plate
CN103162959B (en) * 2013-02-22 2015-10-28 北京工业大学 Multifunctional gear sample plate
CN108061651A (en) * 2017-12-21 2018-05-22 大连理工大学 A kind of common normals the involute master of gear such as self installation benchmark
CN109540060A (en) * 2018-12-26 2019-03-29 北京工业大学 A kind of large scale involute model design method suitable for evaluating involute checker device
CN112097705A (en) * 2020-08-04 2020-12-18 盐城工学院 Cycloid gear precision detection sample plate
CN112097705B (en) * 2020-08-04 2022-03-25 盐城工学院 Cycloid gear precision detection sample plate

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Granted publication date: 20110727

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