CN101543971B - Steel ball hard grinding machine - Google Patents
Steel ball hard grinding machine Download PDFInfo
- Publication number
- CN101543971B CN101543971B CN2009100261000A CN200910026100A CN101543971B CN 101543971 B CN101543971 B CN 101543971B CN 2009100261000 A CN2009100261000 A CN 2009100261000A CN 200910026100 A CN200910026100 A CN 200910026100A CN 101543971 B CN101543971 B CN 101543971B
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- steel ball
- grinding
- face
- emery wheel
- raceway
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Abstract
The invention relates to a steel ball hard grinding machine which comprises a grinding wheel base mounted on a main shaft. A grinding wheel is mounted at the end surface of the grinding wheel base; the grinding face of the grinding wheel is provided with an arc-surface raceway for placing a steel ball; a fixing disc of the steel ball is mounted corresponding to the grinding face of the grinding wheel; an arc-surface raceway for placing the steel ball is arranged on the disc face of the fixing disc and corresponds to the raceway on the grinding face of the grinding wheel; and the steel ball fixing disc is connected with the base. The steel ball hard grinding machine is characterized in that the grinding face of the grinding wheel and the disc face of the fixing disc are both conical surfaces. In the invention, the conical-surface grinding wheel is utilized to replace a plane grinding wheel so that the steel ball can roll and make pivot rotating motion with larger amplitude in the raceways and can be evenly and completely ground in the raceways, thereby the grinding precision and the grinding efficiency are effectively improved. The invention is suitable for grinding processing of various high-precision steel balls.
Description
Technical field
The present invention relates to the hard grinding machine of grinding steel ball, particularly the emery wheel of steel ball hard grinding machine.
Background technology
The steel ball hard grinding machine of prior art, as shown in Figure 1 and Figure 2, comprise the emery wheel pedestal that is installed on the main shaft, the end face of emery wheel pedestal is installed emery wheel 2, have the cambered surface raceway 4 of placing steel ball on the grinding face of emery wheel 2, the corresponding fixed disk 1 that steel ball is installed of grinding face with emery wheel, have the cambered surface raceway 3 of placing steel ball on the card of fixed disk 1, its position and size are corresponding with the described raceway 4 on the wheel grinding face, described steel ball fixed disk 1 is connected with fixed disk pedestal on being installed on frame, and the card of the grinding face of emery wheel 2 and fixed disk 1 is respectively flat shape.
During the grinding steel ball, photosphere steel ball ball base 5 is later placed in the cambered surface raceway 3 of flat shape fixed disk 1, again with the emery wheel 2 that has corresponding raceway 4 with the clamping of ball base, drive emery wheel 2 rotations by main shaft, the ball base is rolled in raceway, and is ground.The ball base just is subjected to turning in the same way tangential force with emery wheel in the actual processing, the ball base carries out pure lift-over, lift-over direction and emery wheel turn to that identical (wobble shaft of steel ball ball base is the vertical join line of the steel ball centre of sphere and emery wheel central shaft, shown in R among Fig. 2, promptly along the lift-over of raceway direction), the ball base is subjected to grinding with the contact-making surface of emery wheel raceway in the lift-over process, be not subjected to grinding with the noncontact face of emery wheel raceway, make that so there are tangible the two poles of the earth in the steel ball that is ground to by the ball base, the full surface of steel ball is not subjected to grinding equably, and this situation has had a strong impact on the circularity of steel ball.In addition, since steel ball by the part of wheel grinding not at the grinding speed maximum, spherical grinding speed maximum point can't be wrapped in (the steel ball surface grinding speed maximum at the steel ball size face place parallel with the card of abrasive disc 2 or fixed disk 1 in the emery wheel, this place's steel ball linear velocity maximum, as the steel ball surface place of intersecting with dotted line R among Fig. 2), therefore its grinding efficient is also lower, and the balling-up time is longer.
Summary of the invention
Problems such as the circularity that the present invention is directed to the steel ball that above-mentioned steel ball hard grinding machine grinding goes out is relatively poor, grinding efficient is lower and the time of balling-up is long have carried out research to improve, and a kind of steel ball hard grinding machine that can improve steel ball grinding circularity and grinding efficiency is provided.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
Steel ball hard grinding machine, comprise the emery wheel pedestal that is installed on the main shaft, the end face of emery wheel pedestal is installed emery wheel by liner plate, have the cambered surface raceway of putting steel ball on the grinding face of emery wheel, the corresponding fixed disk that steel ball is installed of grinding face with emery wheel, have the cambered surface raceway of putting steel ball on the card of fixed disk, its position and size are corresponding with the described raceway on the wheel grinding face, described steel ball fixed disk is connected with fixed disk pedestal on being installed on frame by liner plate, it is characterized in that the grinding face of described emery wheel and the card of fixed disk are respectively the conical surface.
Further technical scheme is:
The tapering of the grinding face of described abrasive disc and the conical surface of fixed disk is respectively 0～75 degree; The grinding conical surface of abrasive disc is the indent conical surface, and the fixed axoid of fixed disk is the corresponding evagination conical surface.
Technique effect of the present invention is:
When carrying out grinding in the raceway of steel ball ball base between conical surface fixed disk and conical wheel dish, the steel ball surface stress surface changes, (wobble shaft of steel ball ball base is the vertical join line of the steel ball centre of sphere and conical wheel central shaft to steel ball ball base along with the abrasive disc rotation direction is carried out lift-over grinding in the same way on the one hand, promptly along the lift-over of raceway direction), there is the grinding (pivotal axis is by the centre of sphere and parallel with main shaft) of pivotal orientation on the other hand, this is because after using tapered wheel instead, invar ball ball base surface stress point changes, make it under pure lift-over situation, can't be to pivotal axis holding torque balance, pivot so must exist, producing grinding moment, thereby reach poised state in this direction.Because steel ball exists above-mentioned lift-over and pivot feed motion, when carrying out grinding in the raceway of steel ball ball base between conical surface fixed disk and conical wheel dish, make any position of steel ball can both obtain grinding, be that steel ball linear velocity maximum (diameter place) also can obtain grinding, the steel ball finished product circularity of processing is good, the steel ball grinding speed strengthens, and production efficiency improves.
Description of drawings
Fig. 1 is the schematic diagram of steel ball ball base grinding between flat-faced wheel dish and plane fixed disk in the existing steel ball hard grinding machine, and part flat-faced wheel dish and plane fixed disk only draw among the figure;
Fig. 2 is the cross sectional representation of Fig. 1, dissects along steel ball ball base;
Fig. 3 looks cutaway view for the master of structure of the present invention, and broken section, the steel ball among the figure do not belong to the present invention;
Fig. 4 is the front view of abrasive disc, and the steel ball among the figure does not belong to the present invention;
Fig. 5 is the front view of fixed disk, and the steel ball among the figure does not belong to the present invention;
The schematic diagram of steel ball turnover grinding race when Fig. 6 moves for the present invention;
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is further described.
See Fig. 3, Fig. 4, Fig. 5, the present invention includes the emery wheel pedestal 1 that is installed on the main shaft 4, the end face of emery wheel pedestal 1 is installed emery wheel 7 by bolt 5 and liner plate 6, have the spherical raceway 12 of putting steel ball 8 on the grinding face of emery wheel 7, the corresponding fixed disk 11 that steel ball is installed of grinding face with emery wheel, have the spherical raceway 14 of putting steel ball 8 on the card of fixed disk 11, the position of spherical raceway 14 and size are corresponding with the described raceway 12 on the wheel grinding face, described steel ball fixed disk 11 is connected with fixed disk pedestal 10 on being installed on frame by liner plate 9, and the card of the grinding face of emery wheel 7 and fixed disk 11 is respectively the conical surface.2 is bearing cap among Fig. 3, and 3 is bearing.
See Fig. 3 to Fig. 6, when the present invention uses, photosphere steel ball ball base 8 is later placed the rotation charging tray 17 of Fig. 6, steel ball ball base 8 is along with charging tray 17 rotations, flow into the track of track plate 15 through steel ball, between entering the notch on the fixed disk 11 13 among Fig. 5 and flowing into raceway 14 and the described raceway 12 on the abrasive disc on the fixed disk 11 (each track that steel ball flows on the track plate 15 is gradient, and each track and raceway 14, raceway 12 are corresponding one by one) from wherein A direction.As shown in Figure 3, steel ball ball base 8 is held between described raceway 14, the raceway 12, emery wheel 7 is around main shaft 4 rotations, fixed disk 11 keeps motionless, steel ball ball base 8 is in grinding force effect lower edge raceway 12 and 14 lift-over, and the rotation of its lift-over direction and emery wheel 7 is to identical, and steel ball ball base 8 is ground along the lift-over direction, wobble shaft is the vertical join line of the centre of sphere and the emery wheel central shaft of steel ball ball base 8, promptly along the direction lift-over of raceway 12 and 14; On the other hand, steel ball ball base 8 is existed the grinding (pivotal axis is by the centre of sphere and parallel with main shaft) of pivotal orientation.When steel ball 8 is rolled into notch shown in Figure 5 13 places along raceway 12 and 14, just reenter in the charging tray 17 along entering notch 13 shown in the B direction and flowing out oralia 16 along steel ball shown in Figure 6, wait for that circulation enters grinding in the raceway of the present invention next time.Carry out grinding so repeatedly, until the steel ball that obtains meeting required precision.The equipment of steel ball turnover grinding race shown in Figure 6 and the structure of notch shown in Figure 5 13 are same as the prior art.
Among Fig. 3, the tapering of the conical surface of the grinding face of described emery wheel 7 and fixed disk 11 is identical, is respectively 0～75 degree, is preferably 0～45 degree; Embodiment is that the grinding conical surface of emery wheel is the indent conical surface preferably, and the fixed axoid of fixed disk is the corresponding evagination conical surface, and the emery wheel of the indent conical surface is easier to processing, and ground effect is also better; Have several size and the fixed disk sizes etc. according to institute's processing steel ball of the spherical raceway of putting into steel ball on the grinding face of emery wheel and the card of fixed disk respectively and determine that the method for determining is same as the prior art.
[0022] the present invention utilizes conical wheel instead of flat facet wheel, change the motion mode of its steel ball in raceway, make its can be comprehensively, grinding in raceway equably, improve grinding accuracy and grinding efficiency, problems such as the spherical precision that has solved the steel ball that the steel ball hard grinding machine grinding goes out is low, and time of balling-up is long.
Claims (3)
1. steel ball hard grinding machine, comprise the emery wheel pedestal that is installed on the main shaft, the end face of emery wheel pedestal is installed emery wheel by liner plate, have the cambered surface raceway of putting steel ball on the grinding face of emery wheel, the corresponding fixed disk that steel ball is installed of grinding face with emery wheel, have the cambered surface raceway of putting steel ball on the card of fixed disk, its position and size are corresponding with the described raceway on the wheel grinding face, described steel ball fixed disk is connected with fixed disk pedestal on being installed on frame by liner plate, it is characterized in that the grinding face of described emery wheel and the card of fixed disk are respectively the conical surface.
2. according to the described steel ball hard grinding machine of claim 1, it is characterized in that the tapering of the conical surface of the grinding conical surface of described emery wheel and fixed disk is respectively 0～75 degree.
3. according to claim 1 or 2 described steel ball hard grinding machines, the grinding face that it is characterized in that described emery wheel is the indent conical surface, and the fixed axoid of fixed disk is the corresponding evagination conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100261000A CN101543971B (en) | 2009-03-25 | 2009-03-25 | Steel ball hard grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100261000A CN101543971B (en) | 2009-03-25 | 2009-03-25 | Steel ball hard grinding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101543971A CN101543971A (en) | 2009-09-30 |
| CN101543971B true CN101543971B (en) | 2010-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100261000A Expired - Fee Related CN101543971B (en) | 2009-03-25 | 2009-03-25 | Steel ball hard grinding machine |
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| Country | Link |
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| CN (1) | CN101543971B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105666306B (en) * | 2016-02-01 | 2017-12-26 | 张金山 | A kind of very-high performance steel ball processing device |
| JP5941236B1 (en) * | 2016-02-12 | 2016-06-29 | 株式会社天辻鋼球製作所 | High-precision spherical dimension measuring device and spherical polishing device |
| CN109773619B (en) * | 2019-03-28 | 2024-02-06 | 苏州聚慧体育用品有限公司 | Full-automatic table tennis burr remove device |
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2009
- 2009-03-25 CN CN2009100261000A patent/CN101543971B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101543971A (en) | 2009-09-30 |
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Granted publication date: 20101020 Termination date: 20150325 |
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