CN103624680B - A kind of clamping device for not a half ball generating grinding - Google Patents
A kind of clamping device for not a half ball generating grinding Download PDFInfo
- Publication number
- CN103624680B CN103624680B CN201310587047.8A CN201310587047A CN103624680B CN 103624680 B CN103624680 B CN 103624680B CN 201310587047 A CN201310587047 A CN 201310587047A CN 103624680 B CN103624680 B CN 103624680B
- Authority
- CN
- China
- Prior art keywords
- centre
- sphere
- compensating disc
- mandrel
- workpiece
- 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.)
- Active
Links
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
- B24B41/06—Work supports, e.g. adjustable steadies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
A kind of for not a half ball generating grinding clamping device, comprise mandrel, hex nut, spring washer, location platen and centre of sphere compensating disc.Wherein centre of sphere compensating disc is arranged on the centre of sphere compensating disc installed surface of described mandrel, and with this mandrel interference fits.Two location platens are arranged on the boss at mandrel two ends respectively, and realize the radial location of each location platen by this boss.With two of centre of sphere compensating disc locating surfaces that end face is workpiece.Described centre of sphere compensating disc, two location platens and workpiece are all coaxial with mandrel.The invention provides that a kind of ball case hardness is more than or equal to HRC55, circularity is less than or equal to 0.02mm when not a half, when surface roughness is less than or equal to Ra0.8 μm, generating grinding process can use etalon directly to measure grinding sphere diameter, sphere center position, determine spheroid form error, realize the grinding attachment of online error transfer factor, have the advantages that production efficiency is high, product tightness is high.
Description
Technical field
The present invention relates to a kind of generating grinding manufacture field, specifically a kind of clamping device for not a half ball generating grinding.
Background technology
The not a half ball that airspace engine industry uses, when adopting plain external grinding machine or surface grinding machine generating grinding, usually once can only grinding one.Owing to belonging to not a half ball spherical cap structure, spherical crown diameter is all less than spheroid maximum gauge, therefore the centre of sphere of spherical crown is in beyond entity for spatial point, after clamping in grinding process, employing conventional method, conventional measurer directly can not be measured and obtain accurate sphere diameter value, control sphere center position, spherical shape error difficulty, production efficiency is low.
In Intellectual Property in China net, soopat patent search engine, search for patent, all do not inquire similar patent.
In " commodity and level academic are observed " 2012 the 8th phase, publish the paper of " few hemispheroidal method for grinding is inquired into ".In this paper, to major parameters such as spheroid sphere diameter size, sphere center position, deviation from spherical form in not a half the processing of sphere when cannot directly measure, adopt indirect inspection characteristic point, adopt the qualitative methods such as cubing checking, the smear test of sphere-contact face indirectly to control.What it was discussed is control method, with content of the present invention without same or similar point.
Summary of the invention
Obtaining accurate sphere diameter value for overcoming can not directly measuring of existing in prior art, controlling sphere center position, spherical shape error difficulty, and the deficiency that production efficiency is low, the present invention proposes a kind of for not a half ball generating grinding clamping device.
The present invention includes mandrel, hex nut, spring washer, location platen and centre of sphere compensating disc.Wherein centre of sphere compensating disc is arranged on the centre of sphere compensating disc installed surface of described mandrel, and with this mandrel interference fits.Two location platens are arranged on the boss at mandrel two ends respectively, and realize the radial location of each location platen by this boss.With two of centre of sphere compensating disc locating surfaces that end face is workpiece, this centre of sphere compensating disc two faces parallels are 0.01 ~ 0.02mm.Described centre of sphere compensating disc, two location platens and workpiece are all coaxial with mandrel.
Have the radial centre of sphere compensating disc installed surface protruded at the axial symmetry place of mandrel, the axial width of this centre of sphere compensating disc installed surface is 1.5 ~ 2 times of centre of sphere compensating disc thickness, to facilitate moving axially of described centre of sphere compensating disc;
Also the radial location platen installed surface protruded is had respectively at the circumferential surface close to mandrel two ends.Width 5 ~ the 15mm larger than the axial height of location platen of this location platen installed surface.
Mandrel all has external screw thread close to the circumferential surface at mandrel two ends, and this external screw thread lays respectively at the outside of described location platen installation base.Mandrel both ends of the surface have for the centre bore with equipment for grinding or the top clamping of grinding attachment.
The external diameter of described centre of sphere compensating disc is slightly less than the external diameter of workpiece.The thickness of centre of sphere compensating disc is determined according to the compensation rate of workpiece, and the compensation rate of described workpiece refers to the distance between workpiece end face to the centre of sphere.
All fluted at two end faces of described centre of sphere compensating disc, groove diameter is less than workpiece diameter, and workpiece end face is contacted with the outer rim of two end faces of centre of sphere compensating disc respectively.
The external peripheral surface of location platen 4 is cascaded surface.The minimum outer diameter of location platen 4 is identical with the internal diameter of isometrical section of workpiece, isometrical section of workpiece is placed in the minimum outer diameter of location platen circumferentially, and realizes the axial location to workpiece by the cascaded surface of location platen external peripheral surface.
The invention provides that a kind of ball case hardness is more than or equal to HRC55, circularity is less than or equal to 0.02mm when not a half, when surface roughness is less than or equal to Ra0.8 μm, generating grinding process can use etalon directly to measure grinding sphere diameter, sphere center position, determine spheroid form error, realize the grinding attachment of online error transfer factor.
Owing to taking technique scheme, the present invention has following effect:
The not a half ball clamped one time of two pieces completes grinding, and production efficiency at least doubles.
The symmetrical clamping of the not a half ball of two pieces, the spherical crown surface symmetry formed is positioned at maximum sphere diameter both sides, can meet process uses nominal outer diameter measurer to adopt general measuring method directly to measure acquisition spheroid different cross section sphere diameter value, reduces grinding quality and controls difficulty and testing cost.
The not a half ball of two pieces clamping simultaneously, generating grinding is steady, and grinding lines is complete, can directly control sphere center position, spherical shape, reduce error transfer factor difficulty, compares the not a half ball grinding of single-piece, can improve sphere diameter, sphere center position precision more than 60%.
Accompanying drawing explanation
Fig. 1 is not a half ball generating grinding clamping device structure chart.
Fig. 2 is mandrel 1 schematic diagram.
Fig. 3 a is the right view of location platen 4 structural representation, and Fig. 3 b is the front view of location platen 4 structural representation.
Fig. 4 a is the front view of centre of sphere compensating disc 5 structural representation, and Fig. 4 b is the left view of centre of sphere compensating disc 5 structural representation.
Fig. 5 is the schematic diagram that not a half ball generating grinding clamping device connects workpiece.
Fig. 6 is the schematic diagram of the not a half spherical work-piece end face of thin-walled and centre of sphere distance.Wherein:
1. mandrel; 2. hex nut; 3. spring washer; 4. locate platen; 5. centre of sphere compensating disc; 6. workpiece.
Detailed description of the invention
The present embodiment is a kind of for not a half ball generating grinding clamping device.
This device comprises mandrel 1, hex nut, spring washer 3, location platen 4, centre of sphere compensating disc 5.
Mandrel 1 is made for 40Cr steel, and two-end structure is symmetrical.Have the radial centre of sphere compensating disc installed surface protruded at the axial symmetry place of mandrel, the axial width of this centre of sphere compensating disc installed surface is 1.5 ~ 2 times of centre of sphere compensating disc thickness, to facilitate moving axially of described centre of sphere compensating disc 5.Also the radial location platen installed surface protruded is had respectively at the circumferential surface close to mandrel two ends.Width 5 ~ the 15mm larger than the axial height of location platen of this location platen installed surface.Mandrel all has external screw thread close to the circumferential surface at mandrel two ends, and this external screw thread lays respectively at the outside of described location platen installation base.Mandrel both ends of the surface have for the centre bore with equipment for grinding or the top clamping of grinding attachment.
Centre of sphere compensating disc 5 is arranged on the centre of sphere compensating disc installed surface of described mandrel 1, and with this mandrel interference fits.Two location platens 4 are arranged on the boss at mandrel two ends respectively, and realize the radial location of each location platen 4 by this boss.
Described centre of sphere compensating disc 5 is hollow revolving body, and the external diameter of this centre of sphere compensating disc is slightly less than the external diameter of workpiece.The thickness of centre of sphere compensating disc is determined according to the compensation rate of workpiece, and the compensation rate of described workpiece refers to the distance between workpiece end face to the centre of sphere, as shown in Figure 6.Described compensation rate δ determines according to workpiece designing requirement.
Two end faces of centre of sphere compensating disc 5 are the locating surface of workpiece, contact with workpiece 6 spherical crown surface; Centre of sphere compensating disc two faces parallels are 0.01 ~ 0.02mm.
All fluted at two end faces of described centre of sphere compensating disc 5, groove diameter is less than workpiece diameter, and workpiece end face is contacted with the outer rim of two end faces of centre of sphere compensating disc respectively.For alleviating the weight of centre of sphere compensating disc, described groove surface has lightening hole.
Described location platen 4 is also hollow revolving body.The external peripheral surface of location platen 4 is cascaded surface.The minimum outer diameter of location platen 4 is identical with the internal diameter of isometrical section of workpiece 6, isometrical section of workpiece 6 is placed in the minimum outer diameter of location platen 4 circumferentially, and realizes the axial location to workpiece by the cascaded surface of location platen external peripheral surface.The card of described location platen there is lightening hole.
Described centre of sphere compensating disc 5, two location platen 4 is all coaxial with mandrel with workpiece 6.
During use, centre of sphere compensating disc 5 is arranged on the centre of sphere compensating disc installed surface of described mandrel 1; The workpiece of two not a half balls is sleeved on mandrel from the two ends of mandrel respectively, and the end face of two workpiece is all fitted with the end face of centre of sphere compensating disc 5; Two location platens 4 are arranged on the boss at mandrel two ends respectively, and are fixed by nut 2 in the outside of two location platens.
In the present embodiment:
Centre of sphere compensating disc 5 is the revolving body that 45 steel are made, centre of sphere compensating disc 5 thickness 9 ± 0.02mm; Centre of sphere compensating disc 5 maximum gauge is less than workpiece 6 spherical crown grinding sphere diameter 1mm; Centre of sphere compensating disc 5 both sides faces parallel 0.015mm, contacts with workpiece 6 spherical crown surface; The centre bore aperture of centre of sphere compensating disc 5 is Φ 56mmH9; Centre of sphere compensating disc 5 both sides end face is provided with Φ 290mm × Φ 110mm groove, and the degree of depth of this groove is 1mm; The lightening hole of uniform 6 Φ 65mm in groove.
The overall length of mandrel is 516mm.Largest diameter 56mm.Be provided with 1 radial installed surface of centre of sphere compensating disc 5 in the middle of mandrel, the width of this installed surface is 18mm, coordinates with centre of sphere compensating disc 5 centre bore Φ 56f9.
The installation base of described location platen 4 is not positioned at workpiece 6 clamping datum level place.The diameter of described installation base is Φ 50mm, and width is 30mm, coordinates with location platen 4 centre bore Φ 50g6.
Location platen 4 has 2, is the revolving body made with 2A12 aluminium alloy plate.The minimum outer diameter of location platen 4 is Φ 252mm, and width is 10mm, and maximum outside diameter is Φ 270mm, width is 10mm; The diameter of positioning disk 4 centre bore is Φ 50mm, coordinates with mandrel 1 Φ 50H7; The card of location platen 4 is evenly equipped with the lightening hole that 4 diameters are Φ 70mm.
Centre of sphere compensating disc 5 is the revolving body that 45 steel are made, centre of sphere compensating disc 5 thickness 9 ± 0.02mm; Centre of sphere compensating disc 5 maximum gauge is less than workpiece 6 spherical crown grinding sphere diameter 1mm; Centre of sphere compensating disc 5 both sides faces parallel 0.015mm, contacts with workpiece 6 spherical crown surface; The aperture of centre of sphere compensating disc 5 centre bore is Φ 56mmH9; Centre of sphere compensating disc 5 both sides end face is provided with Φ 290mm × Φ 110mm groove, and depth of groove is 1mm, the lightening hole of uniform 6 Φ 65mm in groove.
Centre of sphere compensating disc 5 is arranged on center on mandrel 1, and 2 not a half ball workpiece 6 are assemblied in centre of sphere compensating disc 5 left and right sides on mandrel 1 face-to-face, form the most balls of the centre of sphere.Location platen 4 is arranged on location, 2 not a half ball workpiece 6 both sides respectively.Platen 4 two ends, location use hex nut 2, spring washer 3 fastening.Mandrel 1 two ends centre bore, top clamping forward and backward with plain external grinding machine workbench.
Claims (3)
1. for a not a half ball generating grinding clamping device, it is characterized in that, comprise mandrel, hex nut, spring washer, location platen and centre of sphere compensating disc; Wherein centre of sphere compensating disc is arranged on the centre of sphere compensating disc installed surface of described mandrel, and with this mandrel interference fits; Two location platens are arranged on the boss at mandrel two ends respectively, and realize the radial location of each location platen by this boss; With two of centre of sphere compensating disc locating surfaces that end face is workpiece, this centre of sphere compensating disc two faces parallels are 0.01 ~ 0.02mm; Described centre of sphere compensating disc, two location platens and workpiece are all coaxial with mandrel;
The external diameter of described centre of sphere compensating disc is slightly less than the external diameter of workpiece; The thickness of centre of sphere compensating disc is determined according to the compensation rate of workpiece, and the compensation rate of described workpiece refers to the distance between workpiece end face to the centre of sphere;
All fluted at two end faces of described centre of sphere compensating disc, groove diameter is less than workpiece diameter, and workpiece end face is contacted with the outer rim of two end faces of centre of sphere compensating disc respectively.
2. a kind of for not a half ball generating grinding clamping device as claimed in claim 1, it is characterized in that, the radial centre of sphere compensating disc installed surface protruded is had at the axial symmetry place of mandrel, the axial width of this centre of sphere compensating disc installed surface is 1.5 ~ 2 times of centre of sphere compensating disc thickness, to facilitate moving axially of described centre of sphere compensating disc;
Also the radial location platen installed surface protruded is had respectively at the circumferential surface close to mandrel two ends; Width 5 ~ the 15mm larger than the axial height of location platen of this location platen installed surface;
Mandrel all has external screw thread close to the circumferential surface at mandrel two ends, and this external screw thread lays respectively at the outside of described location platen installation base; Mandrel both ends of the surface have for the centre bore with equipment for grinding or the top clamping of grinding attachment.
3. one is used for not a half ball generating grinding clamping device as claimed in claim 1, it is characterized in that, the external peripheral surface of location platen is cascaded surface; The minimum outer diameter of location platen is identical with the internal diameter of isometrical section of workpiece, isometrical section of workpiece is placed in the minimum outer diameter of location platen circumferentially, and realizes the axial location to workpiece by the cascaded surface of location platen external peripheral surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310587047.8A CN103624680B (en) | 2013-11-19 | 2013-11-19 | A kind of clamping device for not a half ball generating grinding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310587047.8A CN103624680B (en) | 2013-11-19 | 2013-11-19 | A kind of clamping device for not a half ball generating grinding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103624680A CN103624680A (en) | 2014-03-12 |
| CN103624680B true CN103624680B (en) | 2016-01-20 |
Family
ID=50206319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310587047.8A Active CN103624680B (en) | 2013-11-19 | 2013-11-19 | A kind of clamping device for not a half ball generating grinding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103624680B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625136B (en) * | 2014-12-22 | 2017-07-04 | 西安航天动力机械厂 | A kind of adjustable inner support tool of split-type |
| CN110052854B (en) * | 2019-05-28 | 2024-04-16 | 四川鸿舰重型机械制造有限责任公司 | Primary turning clamping device for furnace column of hot blast stove |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362279A (en) * | 2008-09-05 | 2009-02-11 | 江西江铃底盘股份有限公司 | Processing technique of split type speed differentiator shell |
| CN102366901A (en) * | 2011-11-02 | 2012-03-07 | 山东常林机械集团股份有限公司 | Semi-circular arc turning tool for swash plate bracket |
| CN202162571U (en) * | 2011-06-16 | 2012-03-14 | 中国长安汽车集团股份有限公司四川建安车桥分公司 | Workpiece excircle processing tool |
| WO2013021999A1 (en) * | 2011-08-11 | 2013-02-14 | 三菱重工業株式会社 | Processing apparatus and processing method |
| CN203282341U (en) * | 2013-05-23 | 2013-11-13 | 上海高压油泵厂有限公司 | Clamp for machining variable head of plunger pump |
-
2013
- 2013-11-19 CN CN201310587047.8A patent/CN103624680B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362279A (en) * | 2008-09-05 | 2009-02-11 | 江西江铃底盘股份有限公司 | Processing technique of split type speed differentiator shell |
| CN202162571U (en) * | 2011-06-16 | 2012-03-14 | 中国长安汽车集团股份有限公司四川建安车桥分公司 | Workpiece excircle processing tool |
| WO2013021999A1 (en) * | 2011-08-11 | 2013-02-14 | 三菱重工業株式会社 | Processing apparatus and processing method |
| CN102366901A (en) * | 2011-11-02 | 2012-03-07 | 山东常林机械集团股份有限公司 | Semi-circular arc turning tool for swash plate bracket |
| CN203282341U (en) * | 2013-05-23 | 2013-11-13 | 上海高压油泵厂有限公司 | Clamp for machining variable head of plunger pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103624680A (en) | 2014-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103322878B (en) | Special detection tool for conical surface runout of cylinder cover valve seat of diesel engine | |
| CN101776429B (en) | Check tool for measuring axial length of crank shaft and application thereof | |
| CN104613846B (en) | The three-dimensional multiaspect pitch-row locating check fixture and detection method of wiper gear case before a kind of automobile | |
| CN105758321A (en) | Train wheel hub inner hole diameter laser measurement system and measurement method thereof | |
| CN201072325Y (en) | Measuring tool especially for hole groove | |
| CN103471481A (en) | Spherical outside surface diameter and profile tolerance measuring instrument | |
| CN104457480A (en) | Detection device for sphere center of ball grooves in universal joint outer ring at fixed end of car transmission shaft | |
| CN103624680B (en) | A kind of clamping device for not a half ball generating grinding | |
| CN106382908A (en) | Novel cylindrical roller outline dimension measuring mechanism | |
| CN204085362U (en) | Fly wheel assembly is beated comprehensive check tool | |
| CN201841440U (en) | Outer raceway measuring rod of slewing bearing | |
| CN201373725Y (en) | External star-wheel shaft hopping measuring check tool | |
| CN204064196U (en) | A kind of aeromotor precision component depth of cavity general purpose measuring tool | |
| CN103630033B (en) | Car transmission shaft stiff end universal joint inner ring alley sphere center position detection apparatus | |
| CN203405136U (en) | Special gauge for diesel engine cylinder cover conical surface run-out | |
| CN110369971B (en) | Grinding rod machining process with externally threaded taper shank for grinding machine | |
| CN205262386U (en) | Geometric tolerances examines utensil | |
| CN203595468U (en) | Raceway ball center position detecting device of car transmission shaft fixed end universal joint inner ring | |
| CN203981091U (en) | Automobile engine crankshaft center pit cubing structure | |
| CN203772239U (en) | Angular contact ball bearing groove position measuring equipment | |
| CN102853804A (en) | Spherical shape gauge for bevel planet gear | |
| CN202661012U (en) | Outer spherical diameter and profile measuring instrument | |
| CN103808288A (en) | Angular contact ball bearing groove position measuring method | |
| CN202562400U (en) | Special gauge for measuring excircle position of cast-in cylinder sleeve | |
| CN102749019A (en) | Special inspection device for measuring perpendicularity of end surface of big-end hole of connecting rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |