CN106826596B - Variation rigidity oval section volute spring array polishing disk - Google Patents

Variation rigidity oval section volute spring array polishing disk Download PDF

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Publication number
CN106826596B
CN106826596B CN201710155689.9A CN201710155689A CN106826596B CN 106826596 B CN106826596 B CN 106826596B CN 201710155689 A CN201710155689 A CN 201710155689A CN 106826596 B CN106826596 B CN 106826596B
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China
Prior art keywords
volute spring
oval section
polishing
section volute
polishing disk
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CN106826596A (en
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曾晰
焦义康
计时鸣
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/20Mountings for the wheels

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

Variation rigidity oval section volute spring array polishing disk, including polishing disk ontology, oval section volute spring array, polishing pad and hemispherical support, the top of polishing disk ontology are equipped with polishing chamber, the polishing disk body bottom portion with it is affixed by motor-driven rotary table;The polishing intracavitary bottom surface of polishing disk ontology is equipped with oval section volute spring array;The upper surface of oval section volute spring array pastes the polishing pad for being used to support abrasive grain and waterproofing protection;Oval section volute spring array includes several mutually independent oval section volute springs, and each oval section volute spring corresponds to a hemispherical support;The upper surface of polishing pad covers abrasive grain layer, and the polishing fluid for lubricating and radiating is filled on abrasive grain layer.The beneficial effects of the present invention are:It is compact-sized, efficiently solve the problems, such as presently, there are Throwing CDs can not process Irregular Boundary Surface and improve processing efficiency;Polishing pan bottom increases the volute spring of stiffness variable, makes Throwing CDs that can have good adaptivity when touching curved surface.

Description

Variation rigidity oval section volute spring array polishing disk
Technical field
The present invention relates to joint prosthesis Ultraprecision Machining fields, more specifically, have invented and have been directed to cobalt-base alloys people The novel Throwing CDs that work joint free form surface efficiently polishes.
Background technology
Artificial Joint Metal Materials have obtained considerable hair in the past 20 years as important biomaterial component part Exhibition.Joint prosthesis is as implantable prosthese made of simulation human synovial, to replace the joint of lesion or damage and restore its work( Can, at present mainly based on hip joint, knee prosthesis.Medical Cobalt-Based Alloys have good corrosion resistance, wear resistance Energy and thermal fatigue resistance, thermal conductivity is high, and coefficient of thermal expansion is relatively low, and Young's modulus does not change, biofacies with its Strength Changes Capacitive is good, thus is widely used in joint prosthesis field.And the cobalt-base alloys surface of ultra-smooth will be such that joint prosthesis has more For superior performance, such as cobalt-base alloys artificial hip joint, ideal surface quality will be helpful to be further reduced use Abrasion in the process increases service life;In addition, the surface bacteria degree of adhesion of cobalt-base alloys artificial knee joint will be with its surface Roughness is directly proportional, and the cobalt-base alloys joint prosthesis of ultra-smooth will be helpful to reduce bacterial plaque accumulation, pre- anticorrosion.Polishing disk is then For the important component processed to joint prosthesis curved surface precision Throwing light.
Presently, there are polishing pan bottom mostly use the disk of rigidity to support abrasive grain, therefore this kind of Throwing CDs can only add Work flat work pieces, therefore be difficult polishing to the free form surface of cobalt-base alloys joint prosthesis.
Invention content
Being suitable for the processing of curved surface precision Throwing light, with certain adaptivity the purpose of the present invention is to provide a kind of, it can The curved surface for processing certain curvature, expands the variation rigidity oval section volute spring array polishing disk of the range of work.
Variation rigidity oval section volute spring array polishing disk of the present invention, it is characterised in that:Including polishing disk ontology, cone The top of shape helical spring array, polishing pad and hemispherical support, the polishing disk ontology is equipped with polishing chamber, the polishing disk Body bottom portion with it is affixed by motor-driven rotary table, realize polishing disk ontology rotate in a circumferential direction around central shaft;The throwing The polishing intracavitary bottom surface of CD ontology is equipped with oval section volute spring array;The upper surface of the oval section volute spring array pastes use In the polishing pad of support abrasive grain and waterproofing protection;The oval section volute spring array includes several mutually independent cone-type spiral bullets Spring, each oval section volute spring correspond to a hemispherical support, the small-caliber end of the oval section volute spring and the polishing disk The inner bottom surface of ontology is affixed, and the heavy caliber end of the oval section volute spring and corresponding hemispherical support bottom are affixed, and described half The arc curve on beaded support top is contacted with the lower surface of polishing pad;The edge of the polishing pad and the polishing disk ontology Cavity wall palette is polished, the upper surface of the polishing pad covers abrasive grain layer, and is filled on abrasive grain layer for lubricating and dissipating The polishing fluid of heat.
The longitudinal direction of the oval section volute spring is highly consistent, and the oval section volute spring is along its axial phase from top to bottom Decrescence, adjoining spiral lift angle is decrescence for adjacent pitch;It is described since there are anisotropy in abrasive grain and free form surface contact process Oval section volute spring monomer can make variation rigidity volute spring generate enough fine tuning angle α using design close under upper dredge, and make to mill The direction that the support of grain obtains to a certain extent is adjustable, to promote the curve surface adaptive of abrasive machining.
The oval section volute spring is evenly distributed on the inner bottom surface of polishing disk ontology.
There is the space for accommodating polishing pad redundancy section between the two neighboring hemispherical support arc-shaped curved surface, with Unbodied form exists, and can be stretched or compress in the course of work, to not torn to pieces when ensureing volute spring juxtaposition metamorphose Polishing pad.
The polishing pad is laminated film, and laminated film is made of polymerization organosilicon and inorganic polymer, and thickness is 0.5mm~2mm.
The polishing chamber center of the polishing disk ontology is equipped with ultraviolet radiator.
The oval section volute spring array is by multiple oval section volute springs with the good depth of parallelism and finish It constitutes, each oval section volute spring is densely arranged, mutual self-movement.The manufacture of the oval section volute spring monomer Process is:Quenching and temper are carried out after spring steel is made in blank, then end face is through turning Precision Machining, and then is had There is the oval section volute spring monomer of the good depth of parallelism and finish.The oval section volute spring monomer is using close under upper dredge Design method realizes variation rigidity during spring stress.The bottom of the single rigid hemispherical support and the single cone Shape helical spring array phase adhesion makes each rigid hemispherical support not depart from during the work time.Described in any two There are film redundancy section between rigid hemispherical support, it can be stretched or compress in the course of work.
Operation principle:The polishing pan bottom is driven by motor and realizes rotary motion.It is Suo Shu Mo above the Throwing light pad Granulosa and the polishing fluid, the joint prosthesis do feed motion from the top down.When the joint prosthesis moves to and the mill Granulosa starts the processing of Throwing light when contacting, since the joint prosthesis is Irregular Boundary Surface, touched in the joint prosthesis When the abrasive grain layer, since oval section volute spring is generated juxtaposition metamorphose by anisotropy external force.The oval section volute spring Monomer can make oval section volute spring monomer top dredge circle spire quick response support abrasive grain using design close under upper dredge Changes in contact;The abrasive grain layer is set to sink rapidly in the position of corresponding stress, the difference of different location stress size makes the mill Bed of material corresponding position is sunk different depth, is then quickly formed and the joint prosthesis machined surface in the abrasive grain layer upper surface The curved surface to match.Bottom line reduces the unnecessary abrasion of the joint prosthesis curved surface, while realizing to the artificial pass The curved surface of section carries out uniform Throwing light.
The beneficial effects of the present invention are:Structure of the invention is compact, ingenious in design, efficiently solve presently, there are Throwing CD can not process the problem of Irregular Boundary Surface and improve processing efficiency, and advantageous effect is apparent;This novel polishing disk is creative Ground increases the volute spring of stiffness variable in its bottom, makes Throwing CDs that can have when touching curved surface good adaptive Property.
Description of the drawings
Fig. 1 is variation rigidity Cone spring structure schematic diagram of the present invention.
Fig. 2 is variation rigidity volute spring stress sketch of the present invention.
Fig. 3 is spring array polishing disk of the present invention (filled arrows are the rotation direction of polishing disk).
Fig. 4 is Throwing CDs fundamental diagram of the present invention.
Specific implementation mode
It further illustrates the present invention below in conjunction with the accompanying drawings
With reference to attached drawing:
1 variation rigidity oval section volute spring array polishing disk of the present invention of embodiment, including polishing disk ontology 4, taper The top of helical spring array 1, polishing pad 3 and hemispherical support 2, the polishing disk ontology 4 is equipped with polishing chamber, the polishing 4 bottom of disk ontology with it is affixed by motor-driven rotary table, realize that polishing disk ontology 4 rotates in a circumferential direction around central shaft;Institute The polishing intracavitary bottom surface for stating polishing disk ontology 4 is equipped with oval section volute spring array 1;The upper table of the oval section volute spring array 1 Face paste covers the polishing pad 3 for being used to support abrasive grain and waterproofing protection;The oval section volute spring array 1 includes several mutually independent Oval section volute spring 11, each oval section volute spring 11 correspond to a hemispherical support 2, the osculum of the oval section volute spring 11 Diameter end and the inner bottom surface of the polishing disk ontology 4 are affixed, heavy caliber end and the corresponding hemispherical of the oval section volute spring 11 2 bottom of holder is affixed, and the arc curve on 2 top of the hemispherical support is contacted with the lower surface of polishing pad 3;The polishing pad 3 Edge and the polishing disk ontology 4 polishing cavity wall palette, the upper surface of the polishing pad 3 covers abrasive grain layer 7, and And polishing fluid polishing fluid 6 of the filling for lubricating and radiating on abrasive grain layer 7.
The longitudinal direction of the oval section volute spring 11 is highly consistent, and the oval section volute spring 11 along its axial direction on to Lower adjacent segments are away from decrescence, and adjoining spiral lift angle is decrescence;Due in abrasive grain and free form surface contact process there are anisotropy, The oval section volute spring monomer can make variation rigidity volute spring generate enough fine tuning angle α using design close under upper dredge, and make The direction obtained to a certain extent to the support of abrasive grain is adjustable, to promote the curve surface adaptive of abrasive machining.
The oval section volute spring 11 is evenly distributed on the inner bottom surface of polishing disk ontology 4.
There is the space for accommodating polishing pad redundancy section between two neighboring 2 arc-shaped curved surface of the hemispherical support, Exist in the form of unbodied, can be stretched or compress in the course of work, to not torn when ensureing volute spring juxtaposition metamorphose Ruin polishing pad.
The polishing pad 3 is laminated film, and laminated film is made of polymerization organosilicon and inorganic polymer, and thickness is 0.5mm~2mm.
The polishing chamber center of the polishing disk ontology is equipped with ultraviolet radiator.
The oval section volute spring array 1 is by multiple oval section volute springs with the good depth of parallelism and finish 11 are constituted, and each oval section volute spring 11 is densely arranged, mutual self-movement.The system of the oval section volute spring 11 The process of making is:Quenching and temper are carried out after spring steel is made in blank, then end face is through turning Precision Machining, and then obtains The oval section volute spring monomer with the good depth of parallelism and finish.The oval section volute spring monomer is using close under upper dredge Design method, realize variation rigidity during spring stress.The bottom of the single rigid hemispherical support with it is single described Oval section volute spring array phase adhesion makes each rigid hemispherical support not depart from during the work time.Any two institute It states between rigid hemispherical support there are film redundancy section, can be stretched or compress in the course of work.
Operation principle:4 bottom of polishing disk ontology is driven by motor and realizes rotary motion.3 top of the Throwing light pad is The abrasive grain layer 7 and the polishing fluid 6, the joint prosthesis do feed motion from the top down.When the joint prosthesis 6 moves to Start the processing of Throwing light when being contacted with the abrasive grain layer 7, since the joint prosthesis is Irregular Boundary Surface, in the artificial pass When section touches the abrasive grain layer 7, since oval section volute spring 11 is generated juxtaposition metamorphose by anisotropy external force.The cone Shape helical spring 11 can make oval section volute spring monomer top dredge circle spire quick response using design close under upper dredge Support abrasive grain changes in contact;The abrasive grain layer is set to sink rapidly in the position of corresponding stress, the difference of different location stress size So that the abrasive material corresponding position is sunk different depth, is then quickly formed and the artificial pass in the abrasive grain layer upper surface The curved surface that section machined surface matches.Bottom line reduces the unnecessary abrasion of the joint prosthesis curved surface, while realizing to institute The curved surface for stating joint prosthesis carries out uniform Throwing light.
Fig. 1, oval section volute spring shown in 2 define under oval section volute spring small-caliber end is, greatly by taking two-stage screw as an example Bore end is upper, i.e., the taper where the outer profile of oval section volute spring is inverted cone-shaped, is named as the first order successively from top to bottom Spiral, second level spiral, and the pitch Z of first order spiral1More than the pitch Z of second level spiral2;Corresponding first order spiral Corresponding helix angle θ1Helix angle θ corresponding more than second level spiral2;D1 is that oval section volute spring heavy caliber end place is cut The diameter of the corresponding inverted cone-shaped in face;D2 is the diameter of the corresponding inverted cone-shaped in section where oval section volute spring small-caliber end.
Shown in Fig. 2:Fa、FbIt is respectively applied to the external force at oval section volute spring heavy caliber end, α is oval section volute spring Finely tune angle.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention Range is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes art technology Personnel according to present inventive concept it is conceivable that equivalent technologies mean.

Claims (5)

1. variation rigidity oval section volute spring array polishing disk, it is characterised in that:Including polishing disk ontology, oval section volute spring battle array Row, polishing pad and hemispherical support, the top of the polishing disk ontology are equipped with polishing chamber, the polishing disk body bottom portion with by Motor-driven rotary table is affixed, realizes that polishing disk ontology rotates in a circumferential direction around central shaft;The throwing of the polishing disk ontology Optical cavity inner bottom surface is equipped with oval section volute spring array;The upper surface of the oval section volute spring array paste be used to support abrasive grain and The polishing pad of waterproofing protection;The oval section volute spring array includes several mutually independent oval section volute springs, each taper Helical spring corresponds to a hemispherical support, the inner bottom surface of the small-caliber end of the oval section volute spring and the polishing disk ontology Affixed, the heavy caliber end of the oval section volute spring and corresponding hemispherical support bottom are affixed, the hemispherical support top Arc curve contacted with the lower surface of polishing pad;The edge of the polishing pad and the polishing cavity wall of the polishing disk ontology are close Sealing label closes, and the upper surface of the polishing pad covers abrasive grain layer, and polishing fluid of the filling for lubricating and radiating on abrasive grain layer.
2. variation rigidity oval section volute spring array polishing disk as described in claim 1, it is characterised in that:The cone-type spiral bullet The longitudinal direction of spring is highly consistent, and the oval section volute spring along its axial adjacent segments from top to bottom away from decrescence, adjoining spiral liter Angle is decrescence.
3. variation rigidity oval section volute spring array polishing disk as claimed in claim 2, it is characterised in that:The cone-type spiral bullet Spring is evenly distributed on the inner bottom surface of polishing disk ontology.
4. variation rigidity oval section volute spring array polishing disk as described in claim 1, it is characterised in that:Two neighboring described half There is the space for accommodating polishing pad redundancy section between beaded support arc-shaped curved surface.
5. variation rigidity oval section volute spring array polishing disk as claimed in claim 4, it is characterised in that:The polishing pad is multiple Film is closed, laminated film is made of polymerization organosilicon and inorganic polymer, and thickness is 0.5mm~2mm.
CN201710155689.9A 2017-03-16 2017-03-16 Variation rigidity oval section volute spring array polishing disk Active CN106826596B (en)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108081099A (en) * 2017-12-13 2018-05-29 杨季维 Electromechanical integration polishing machine
CN108942617A (en) * 2018-07-25 2018-12-07 浙江工业大学 A kind of mold complex surface adaptive machining platform and its processing method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0283152A (en) * 1988-09-19 1990-03-23 Hitachi Ltd Polishing method for rotation symmetrical curved face
CN201443197U (en) * 2009-03-24 2010-04-28 孙保宁 Novel floor polishing disk
CN102152240A (en) * 2011-02-21 2011-08-17 浙江工业大学 Novel method and special device for precisely processing titanium alloy joint prosthesis by curved-surface turbulence
CN103846783B (en) * 2014-03-06 2016-04-06 浙江工商大学 A kind of spirality grinding and polishing dish
CN205129604U (en) * 2015-10-29 2016-04-06 浙江星星科技股份有限公司 A polishing dish for polishing of curved surface glass
CN206614425U (en) * 2017-03-16 2017-11-07 浙江工业大学 Variation rigidity oval section volute spring array polishing disk

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Application publication date: 20170613

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