CN110026897A - It is mounted directly the internal grinding knife bar of grinding wheel - Google Patents
It is mounted directly the internal grinding knife bar of grinding wheel Download PDFInfo
- Publication number
- CN110026897A CN110026897A CN201910396642.0A CN201910396642A CN110026897A CN 110026897 A CN110026897 A CN 110026897A CN 201910396642 A CN201910396642 A CN 201910396642A CN 110026897 A CN110026897 A CN 110026897A
- Authority
- CN
- China
- Prior art keywords
- grinding wheel
- knife bar
- grinding
- internal
- nut
- 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.)
- Pending
Links
- 239000004576 sand Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 239000006061 abrasive grain Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
- B24B41/042—Balancing mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B45/00—Means for securing grinding wheels on rotary arbors
- B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
A kind of internal grinding knife bar being mounted directly grinding wheel disclosed by the invention, it is desirable to provide a kind of coaxial accuracy is high, replaces grinding wheel fast and easily internal grinding knife bar.The technical scheme is that: the internal grinding knife bar (1) with a connection step cylinder D, gasket (2), nut (3), consistent circular conical surface C is formed with inner circle grinding wheel hole taper on the grinding wheel spindle of internal grinding knife bar necking down step, circular conical surface C is less than 0.005mm to the radial run-out of knife bar common axis, grinding wheel is directly installed in circular conical surface C and is positioned, grinding wheel is compressed with washer (2) nut (3), and the step cylinder D outer circle of internal grinding knife bar (1) root rear end is formed with the symmetrical structure of the polygon of axial symmetry distribution, the verticality of the plane and nut inner threaded hole that compress the shaft end nut (3) of grinding wheel is less than 0.03mm.
Description
Technical field
The present invention relates to a kind of internal grinding knife bars for being mounted directly grinding wheel, for being ground high-precision, low surface roughness
The small diameter bore of value.
Background technique
High-precision grinding is the important process method in modern processing.In aviation field, many small diameter bores need
Reach high-precision, the design requirement of low surface roughness value by grinding.In Grinding Process, the radial direction circle of knife bar is jumped
Dynamic to be difficult to control, this is always the difficult point of grinding.If the error of the radial run-out of knife bar is excessive, the product processed
Phenomena such as often generating deviation from circular from and big cylindricity error, quality cannot guarantee.Internal grinding grinding wheel is installed on grinding machine
The method generallyd use is: the screw shown in Fig. 2 connects grinding wheel, and screw passes through grinding wheel inner hole and is connected in the threaded hole of knife bar.
For a long time, grinding only is simply thought to be attached to by grinding wheel on sharpening axis and be locked, and is fixed in integral grinding on grinding machine.It can lead to
It crosses from the point of view of actual production service condition, when installation need to twine brown paper in screw outer circle to fill gap between screw and grinding wheel inner hole
(rotation when eliminating gap to prevent wheel grinding)；Another kind is the grinding wheel axis connection grinding wheel shown in Fig. 3, fills sand with adhesive
The gap of wheel and grinding wheel spindle, grinding wheel is bonded on grinding wheel spindle, then grinding wheel spindle is connected to knife bar.Pass through screw or grinding wheel spindle
The grinding wheel of installation and the coaxial accuracy of knife bar are low, and grinding wheel rotary course medium plain emery wheel deviates rotation center, and generation is waved, can be generated
Some small bending deformations, cause dynamic balance accuracy low.Especially when being ground high-precision small diameter bore knife bar revolving speed
Up to 40000~60000 revs/min, the low wheel grinding of dynamic balance accuracy can reduce small diameter bore grinding accuracy and surface it is thick
Rugosity requirement.Grinding high-precision small diameter bore needs to carry out grinding wheel good grindability of the frequent finishing to obtain grinding wheel abrasive grain
Energy.Grinding wheel used wants frequent reconditioning also to keep the correct shape of grinding wheel when being ground slender piece.Abrasive grain is not when grinding wheel is too soft
It has fallen off before rust, grinding wheel conformality is poor, loses its original shape, it is also desirable to frequent reconditioning.Finishing continually will
Increase the frequency of replacement grinding wheel.Bonding grinding wheel needs first to strike to split grinding wheel and removes from grinding wheel spindle in replacement, not only time-consuming but also not
Environmental protection.
Summary of the invention
For the present invention in view of the above-mentioned problems, providing a kind of coaxial accuracy height, replacement grinding wheel is fast and easily mounted directly sand
The internal grinding knife bar of wheel.
To achieve the goals above, the present invention provides a kind of internal grinding knife bar for being mounted directly grinding wheel, has a company
Connect the internal grinding knife bar 1, gasket 2, nut 3 of step cylinder D, which is characterized in that the sand of 1 necking down step of internal grinding knife bar
It is small to the radial run-out of knife bar common axis that consistent circular conical surface C, circular conical surface C with inner circle grinding wheel hole taper are formed on wheel shaft
In 0.005mm, grinding wheel is directly installed in circular conical surface C and is positioned, and compresses grinding wheel, and internal grinding knife bar 1 with 2 nut 3 of washer
The step cylinder D outer circle of portion rear end is formed with the symmetrical structure of the polygon of axial symmetry distribution, compresses the shaft end nut 3 of grinding wheel
Plane and the verticality of nut inner threaded hole are less than 0.03mm.
The present invention has the following beneficial effects: compared with the prior art
Grinding wheel is mounted directly by the present invention to be located on internal grinding knife bar, the coaxial accuracy of grinding wheel and internal grinding knife bar
Height, this provides for improved the dynamic balance accuracies of grinding wheel when high speed rotation, while avoiding paper wrapping or viscose glue when installing grinding wheel, replacement
It is struck when grinding wheel and splits grinding wheel, the circular conical surface C of internal grinding knife bar is consistent with grinding wheel inner hole, eliminates and is installed with screw and grinding wheel spindle
Existing gap when grinding wheel improves the coaxial accuracy that the installation effectiveness grinding wheel of grinding wheel is mounted on internal grinding knife bar and mentions
It is high.
The present invention uses the circular conical surface C and grinding wheel inner hole uniform structure mode of internal grinding knife bar, is not required to use screw
Inner circle grinding wheel and knife bar are connected, is not required to that grinding wheel is bonded on grinding wheel spindle with adhesive.Internal grinding knife bar and inner circle grinding wheel are pacified
Accuracy of alignment and coaxial accuracy after dress is high.And then improve the dynamic balance accuracy and inner circle grinding wheel high speed of internal grinding knife bar
Dynamic balance accuracy when rotation grinding.To improve small diameter inner hole grinding accuracy, inner bore surface roughness value is reduced.
Step cylinder D outer circle of the present invention in inner circle grinding cutter pole-footing portion rear end is formed with the polygon of axial symmetry distribution
Symmetrical structure (quadrangle or more than polygon) is suitble to spanner to install knife bar.
The present invention is less than the specialized nut of 0.03mm using plane and the verticality of internal thread hole, eliminates standard component nut
Since the error of perpendicularity of transverse plane and threaded hole is big, the defect of the knife bar end bending deformation easily caused when compressing.
The present invention uses and the circular conical surface C of the consistent internal grinding knife bar of grinding wheel inner hole, the replacement of internal grinding knife bar
Grinding wheel is efficient and convenient.
Dynamic balance accuracy when inner circle grinding wheel high-speed rotation is ground improves.Because the dynamic balance accuracy of internal grinding knife bar mentions
Height, grinding wheel and knife bar conical surface C are mounted directly cooperation coaxial accuracy height, and nut, which compresses, eliminates the bending deformation of knife bar end, therefore
Improve the dynamic balance accuracy when grinding of inner circle grinding wheel high-speed rotation.The present invention provides one kind for grinding high-precision small diameter bore
The selection of internal grinding knife bar.
Detailed description of the invention
Fig. 1 is the schematic diagram for the internal grinding knife bar that the present invention is mounted directly grinding wheel.
Fig. 2 is the schematic diagram of the internal grinding knife bar of prior art screw connection grinding wheel.
Fig. 3 is the schematic diagram of the internal grinding knife bar of prior art grinding wheel axis connection grinding wheel.
In Fig. 1: 1 internal grinding knife bar, 2 gaskets, 3 nuts, 4 inner circle grinding wheels.
Specific embodiment
Refering to fig. 1.It is described below in preferred embodiment, a kind of internal grinding knife bar being mounted directly grinding wheel has
Internal grinding knife bar 1, gasket 2, the nut 3 of one connection step cylinder D.Wherein, the sand of 1 necking down step of internal grinding knife bar
It is small to the radial run-out of knife bar common axis that consistent circular conical surface C, circular conical surface C with inner circle grinding wheel hole taper are formed on wheel shaft
In 0.005mm, grinding wheel is directly installed in circular conical surface C and is positioned, and compresses grinding wheel, and internal grinding knife bar 1 with 2 nut 3 of washer
The step cylinder D outer circle of portion rear end is formed with the symmetrical structure of the polygon of axial symmetry distribution, compresses the shaft end nut 3 of grinding wheel
Plane and the verticality of nut inner threaded hole are less than 0.03mm.
Internal grinding knife bar is axially symmetric structure, the polygon of step cylinder D outer circle axial symmetry distribution be quadrangle or
Polygon more than person.
When grinding, internal grinding knife bar 1 is mounted on the internal grinding head of precision grinder, by screw thread at A, outer circle at B
Positioning is connect with internal grinding head with end face；Grinding wheel 4 is directly installed in circular conical surface at the C of internal grinding knife bar 1, at grinding wheel hole and C
Circular conical surface cooperation；Grinding wheel is pressed on internal grinding knife bar with washer 2 and nut 3；Internal grinding knife bar can be used different
Material, specific size can also be different with grinding wheel outer dimension according to grinding aperture and change, such transformation all falls within this patent
Protection scope within.
Claims (3)
1. a kind of internal grinding knife bar for being mounted directly grinding wheel, the internal grinding knife bar with a connection step cylinder D
(1), gasket (2), nut (3), which is characterized in that be formed with and inner circle sand on the grinding wheel spindle of internal grinding knife bar (1) necking down step
The consistent circular conical surface C of hole taper is taken turns, circular conical surface C is less than 0.005mm to the radial run-out of knife bar common axis, and grinding wheel is direct
It installs and positions in circular conical surface C, compress grinding wheel, and the step of internal grinding knife bar (1) root rear end with washer (2) nut (3)
Cylindrical body D outer circle is formed with the symmetrical structure of the polygon of axial symmetry distribution, compresses the plane and nut of the shaft end nut (3) of grinding wheel
The verticality of internal thread hole is less than 0.03mm.
2. being mounted directly the internal grinding knife bar of grinding wheel as described in claim 1, it is characterised in that: step cylinder D outer circle
Axial symmetry distribution polygon be quadrangle or more than polygon.
3. being mounted directly the internal grinding knife bar of grinding wheel as described in claim 1, it is characterised in that: grinding wheel (4) is directly installed in
Circular conical surface cooperates at circular conical surface at the C of internal grinding knife bar (1), grinding wheel hole and C；Grinding wheel is compressed with washer (2) and nut (3)
On inner circle grinding cutter bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910396642.0A CN110026897A (en) | 2019-05-13 | 2019-05-13 | It is mounted directly the internal grinding knife bar of grinding wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910396642.0A CN110026897A (en) | 2019-05-13 | 2019-05-13 | It is mounted directly the internal grinding knife bar of grinding wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110026897A true CN110026897A (en) | 2019-07-19 |
Family
ID=67241954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910396642.0A Pending CN110026897A (en) | 2019-05-13 | 2019-05-13 | It is mounted directly the internal grinding knife bar of grinding wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110026897A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110815040A (en) * | 2019-11-18 | 2020-02-21 | 中国航发哈尔滨轴承有限公司 | High-precision internal grinding machine electric spindle grinding wheel connecting rod |
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| CN2339353Y (en) * | 1998-09-29 | 1999-09-22 | 宗桂生 | Sandpiece-grinding polishing disc |
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| AU2005101014A4 (en) * | 2005-08-31 | 2006-01-12 | Kurt Hutterer | Grinding wheel adaptor and method |
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| CN202155790U (en) * | 2011-07-14 | 2012-03-07 | 周玉长 | A punch former |
| CN102689240A (en) * | 2012-05-29 | 2012-09-26 | 哈尔滨汽轮机厂有限责任公司 | Corn milling cutter and method for machining double-head corrugated corn milling cutter by using corn milling cutter |
| CN203390153U (en) * | 2013-07-23 | 2014-01-15 | 双星漯河中原机械有限公司 | Continuous sand mill main shaft |
| CN204382082U (en) * | 2014-12-19 | 2015-06-10 | 天津市工研精密机械制造有限公司 | For connecting the spacer shell of CNC precision mill and emery wheel |
| CN204863449U (en) * | 2015-08-20 | 2015-12-16 | 何宗战 | Medical screw pressurization advance and retreat ware |
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| CN205111564U (en) * | 2015-09-29 | 2016-03-30 | 中钢集团邢台机械轧辊有限公司 | Utilize numerical control lathe to big specification lopps product hole grinding device |
| CN205237809U (en) * | 2015-11-16 | 2016-05-18 | 杭州巨德汽配有限公司 | A bistrique assembly for making up grinding machine |
| CN205703793U (en) * | 2016-06-28 | 2016-11-23 | 上海九连环新材料科技有限公司 | A kind of grinder wheel structure |
| CN205989078U (en) * | 2016-08-31 | 2017-03-01 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing valve rod V-groove special-purpose milling cutter |
| CN207971557U (en) * | 2018-03-23 | 2018-10-16 | 哈尔滨汽轮机厂有限责任公司 | A kind of assembled milling cutter for processing strut fillet |
| CN208681181U (en) * | 2018-08-09 | 2019-04-02 | 上海海帆船舶设备有限公司 | A kind of diesel engine cylinder head for ship delivery valve seat aperture inside edge conical surface arrangement for grinding |
| CN208729485U (en) * | 2018-08-08 | 2019-04-12 | 常州凯瑞莱精密工具有限公司 | For processing the hone of polygon inner hole |
| CN210099750U (en) * | 2019-05-13 | 2020-02-21 | 成都凯天电子股份有限公司 | Internal grinding direct-mounted grinding wheel cutter bar |
-
2019
- 2019-05-13 CN CN201910396642.0A patent/CN110026897A/en active Pending
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4240208C1 (en) * | 1992-11-30 | 1994-01-13 | Zacher Karl Heinz | Holder for milling-cutter disc - has cylindrical boss on main body fitting in annular groove in clamping head for centring |
| CN2339353Y (en) * | 1998-09-29 | 1999-09-22 | 宗桂生 | Sandpiece-grinding polishing disc |
| CN1410223A (en) * | 2002-09-19 | 2003-04-16 | 东方汽轮机厂 | Scraping and grinding method of inclined relieving milling cutter |
| AU2005101014A4 (en) * | 2005-08-31 | 2006-01-12 | Kurt Hutterer | Grinding wheel adaptor and method |
| JP2010284774A (en) * | 2009-06-15 | 2010-12-24 | Disco Abrasive Syst Ltd | Mounting tool set and method for mounting annular blade |
| CN202097619U (en) * | 2011-06-01 | 2012-01-04 | 无锡市明鑫机床有限公司 | Grinding tool for taper hole |
| CN202155790U (en) * | 2011-07-14 | 2012-03-07 | 周玉长 | A punch former |
| CN102689240A (en) * | 2012-05-29 | 2012-09-26 | 哈尔滨汽轮机厂有限责任公司 | Corn milling cutter and method for machining double-head corrugated corn milling cutter by using corn milling cutter |
| CN203390153U (en) * | 2013-07-23 | 2014-01-15 | 双星漯河中原机械有限公司 | Continuous sand mill main shaft |
| CN204382082U (en) * | 2014-12-19 | 2015-06-10 | 天津市工研精密机械制造有限公司 | For connecting the spacer shell of CNC precision mill and emery wheel |
| CN204868450U (en) * | 2015-07-29 | 2015-12-16 | 重庆市上泽机电有限公司 | Motor thin wall part equipment for external grinding |
| CN204863449U (en) * | 2015-08-20 | 2015-12-16 | 何宗战 | Medical screw pressurization advance and retreat ware |
| CN204893606U (en) * | 2015-08-31 | 2015-12-23 | 自贡中兴耐磨新材料有限公司 | Processingequipment in shaping hole |
| CN205111564U (en) * | 2015-09-29 | 2016-03-30 | 中钢集团邢台机械轧辊有限公司 | Utilize numerical control lathe to big specification lopps product hole grinding device |
| CN205237809U (en) * | 2015-11-16 | 2016-05-18 | 杭州巨德汽配有限公司 | A bistrique assembly for making up grinding machine |
| CN205703793U (en) * | 2016-06-28 | 2016-11-23 | 上海九连环新材料科技有限公司 | A kind of grinder wheel structure |
| CN205989078U (en) * | 2016-08-31 | 2017-03-01 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing valve rod V-groove special-purpose milling cutter |
| CN207971557U (en) * | 2018-03-23 | 2018-10-16 | 哈尔滨汽轮机厂有限责任公司 | A kind of assembled milling cutter for processing strut fillet |
| CN208729485U (en) * | 2018-08-08 | 2019-04-12 | 常州凯瑞莱精密工具有限公司 | For processing the hone of polygon inner hole |
| CN208681181U (en) * | 2018-08-09 | 2019-04-02 | 上海海帆船舶设备有限公司 | A kind of diesel engine cylinder head for ship delivery valve seat aperture inside edge conical surface arrangement for grinding |
| CN210099750U (en) * | 2019-05-13 | 2020-02-21 | 成都凯天电子股份有限公司 | Internal grinding direct-mounted grinding wheel cutter bar |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110815040A (en) * | 2019-11-18 | 2020-02-21 | 中国航发哈尔滨轴承有限公司 | High-precision internal grinding machine electric spindle grinding wheel connecting rod |
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| 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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190719 |