CN101412199A - Easily dismountable abrasive tool for accurate grinding high-hardness revolving sphere - Google Patents
Easily dismountable abrasive tool for accurate grinding high-hardness revolving sphere Download PDFInfo
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- CN101412199A CN101412199A CNA2008102034524A CN200810203452A CN101412199A CN 101412199 A CN101412199 A CN 101412199A CN A2008102034524 A CNA2008102034524 A CN A2008102034524A CN 200810203452 A CN200810203452 A CN 200810203452A CN 101412199 A CN101412199 A CN 101412199A
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Abstract
The invention relates to an easily detached grinding tool for precise grinding for the high-hardness rotary spherical surface in the technical field of machine tool, which comprises a dish grinding disc basal body, a connecting shaft, grinding material blocks and bolts, wherein the dish grinding disc basal body is fixed on the connecting shaft through the bolts, the grinding material blocks are fixed on the dish grinding disc basal body through the bolts, the grinding material blocks are arranged on the dish grinding disc basal body in a ring-shaped and equal mode, the whole grinding tool is connected with a grinding main shaft through the connecting shaft, and the inside of the connecting shaft is directly filled with cooling fluid. The easily detached grinding tool has the characteristics of low cost, easy detachment and high grinding efficiency.
Description
Technical field
What the present invention relates to is the grinding grinding tool in a kind of machine tool technology field, specifically is a kind of easily dismountable abrasive tool for accurate grinding high-hardness revolving sphere.
Background technology
The high rigidity high-precision sphere is the critical component in high temperature resistant, high pressure resistant, the wear-resistant ball valve.Because the condition of work that this class ball valve bears is very abominable, therefore, in order to improve its high temperature resistant and anti-wear performance, the spherome surface at ball valve has sprayed the very high high rigidity materials such as WC, Ni60 of scuff resistance usually, and case hardness often is higher than more than the HRC60.On the other hand, because this ball valve generally all is operated in high temperature, the hyperbaric environment, seal request is also quite high, often take hard sealing means in this case, in this sealing means, form accuracy of spheroid (sphericity) and surface roughness require just very high, and this just brings very big difficulty to Precision Machining.Generally adopt the accurate grinding processing method of diamond or CBN grinding materials and grinding tool for this high accuracy, high rigidity, high-wearing feature material, the preparation cost of diamond or CBN grinding materials and grinding tool is higher relatively.Up to the present, domestic also do not have a high-hardness revolving sphere precision grinder general, standard, generally all adopts some special uses, off-gauge grinding processing method: a kind of is to adopt cylindrical grinding wheel cylindricalo grinding mode to realize the grinding of revolving sphere; Another kind is to adopt dish-shaped grinding tool crush grinding mode to realize the grinding of revolving sphere.What generally adopt at present is a kind of mode in back.
Through the literature search of prior art is found, Chinese patent application number is: ZL020258102.2, and name is called: flaring cup wheel, mainly the flaring cup wheel working face is improved, the plane is changed into tapered slope, and on tapered slope, offer water groove, to improve grinding efficiency.The deficiency of this flaring cup wheel is: matrix and abrasive material are an integral body, in case the intact back of abrasive wear matrix just can not utilize again.On tapered slope, offer the manufacturing cost that water groove has also increased emery wheel in addition.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of easily dismountable abrasive tool for accurate grinding high-hardness revolving sphere is provided, have the advantages that cost is low, quick detachable, grinding efficiency is high.
The present invention is achieved through the following technical solutions, the present invention includes connecting axle, dish-shaped mill matrix, abrasive material piece.Wherein, dish mill matrix is fixed on the connecting axle by screw, and the abrasive material piece is fixed on the dish-shaped mill matrix by screw, and the abrasive material piece is that five equilibrium is arranged in the form of a ring on dish-shaped mill matrix, whole grinding tool is connected with grinding spindle by connecting axle, directly logical cooling fluid in the connecting axle.
Described dish-shaped mill matrix, interior inclined-plane and centre of gyration line at dish-shaped mill matrix are at 45, on interior inclined-plane, offer the even number groove, in hole of processing, the center of groove, be used to install the abrasive material piece, on the end face of dish-shaped mill matrix, screwed hole of processing is used for fixing the abrasive material piece on the endface position of corresponding aperture.
The cooling fluid hole is offered at the center of described connecting axle, by this cooling fluid hole cooling fluid can be sprayed from grinding tool inside to processed sphere, reaches best cooling and chip removal effect.
Described abrasive material piece comprises abrasive material piece matrix, abrasive material, and the cuboid abrasive material is bonded on the abrasive material piece matrix with glue, and the abrasive material piece is symmetrically distributed, and the quantity of abrasive material piece is even number.Processed a groove that is 90 ° on the cylindrical handle of abrasive material piece matrix, by the screw on the dish-shaped mill matrix abrasive material piece matrix has been fixed on the dish-shaped mill matrix, after abrasive wear finished, unscrewing hold-down screw was conveniently replaced abrasive material piece.
The present invention's dish mill matrix diameter is determined according to the sphere diameter of processed spheroid, but the abrasive material piece is big or small constant, branches such as ring-type are arranged to make enough gaps between the abrasive material piece, chip removal is unobstructed, grinding skin and abrasive material piece are fully cooled off easily, thereby improved the service life of abrasive material piece, reduced the burn of grinding skin.The abrasive material piece can be changed, and size is consistent, easy to make, has reduced cost.Can directly lead to cooling fluid in the connecting axle, cooling and chip removal are effective.The present invention has the advantages that cost is low, quick detachable, grinding efficiency is high.
Description of drawings
Fig. 1 is a grinding tool general structure schematic diagram of the present invention.
Fig. 2 is dish-shaped mill basal body structure figure.
Fig. 3 is the connecting axle structure chart.
Fig. 4 is the abrasive material block structural diagram
Fig. 5 is a grinding tool grinding revolving sphere schematic diagram of the present invention.
Among the figure: connecting axle 1, dish-shaped mill matrix 2, abrasive material piece 3, abrasive material piece matrix 4, abrasive material 5, processed spheroid 6.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: connecting axle 1, dish-shaped mill matrix 2, abrasive material piece 3.Wherein, dish mill matrix 2 is fixed on the connecting axle 1 by screw, and abrasive material piece 3 is fixed on the dish-shaped mill matrix 2 by screw, and abrasive material piece 3 is that five equilibrium is arranged in the form of a ring on dish-shaped mill matrix 2, whole grinding tool is connected with grinding spindle by connecting axle 1, directly logical cooling fluid in the connecting axle 1.
As shown in Figure 2, be dish-shaped mill matrix 2, dish-shaped mill matrix 2 diameters determine that according to processed sphere diameter size abrasive material piece 3 is symmetrically distributed, and the quantity of abrasive material piece 3 is even number.Inclined-plane and centre of gyration line are at 45 in the dish mill matrix 2, offer the even number groove on interior inclined-plane, in hole of processing, the center of groove, be used to install abrasive material piece 3, on the end face of dish-shaped mill matrix 2, screwed hole of processing is used for fixing abrasive material piece 3 on the endface position of corresponding aperture.
As shown in Figure 3, be connecting axle 1, connecting axle 1 is connected with dish-shaped mill matrix 2 by screw, offers the cooling fluid hole at the center of connecting axle 1, by this cooling fluid hole cooling fluid can be sprayed from grinding tool inside to processed sphere, reach best cooling and chip removal effect.
As shown in Figure 4, be abrasive material piece 3, comprise abrasive material piece matrix 4, abrasive material 5, cuboid abrasive material 3 compositions are CBN or diamond abrasive, be bonded at a certain angle on the abrasive material piece matrix 4 with glue, processed a groove that is 90 ° on the cylindrical handle of abrasive material piece matrix 4, abrasive material piece matrix 4 is fixed on the dish-shaped mill matrix 2 by the screw on the dish-shaped mill matrix 2, after abrasive material 5 wearing and tearing finished, unscrewing hold-down screw was conveniently replaced abrasive material piece 3.
As shown in Figure 5, grinding tool grinding revolving sphere schematic diagram, processed spheroid 6 are around the rotation of spheroid through hole center line, and grinding tool is around the rotation of connecting axle 1 center line, and synthesizing of two motions under the effect of grinding tool abrasive material piece 3, realized the processing of revolving sphere.
Present embodiment dish mill matrix 2 diameter determine that according to the sphere diameter of processed spheroid 6 sphere diameter is big more, and dish-shaped mill matrix 2 diameters are big more.Dish mill matrix 2 diameters are big more, and abrasive material piece 3 quantity are many more, but abrasive material piece 3 is big or small constant.Because abrasive material piece 3 is that five equilibrium is arranged in the form of a ring on dish-shaped mill matrix 2, enough gaps are arranged between the abrasive material piece 3, and chip removal is unobstructed, and grinding skin and abrasive material piece 3 are fully cooled off easily, thereby improved the service life of abrasive material piece 3, reduced the burn of grinding skin.Abrasive material piece 3 is to be fixed on the dish-shaped mill matrix 2 by the screw orientation, after 3 wearing and tearing of abrasive material piece finish, only needs to change abrasive material piece 3, needn't change dish-shaped mill matrix 2.Because the size of abrasive material piece 3 is consistent, and easy to make, the cost of manufacture of abrasive material piece 3 is more much lower than monoblock type emery wheel grinding tool.Whole grinding tool is to be connected with grinding spindle by connecting axle 1, and can directly lead to cooling fluid in the connecting axle 1, and promptly cooling fluid is to drench to outwash in grinding tool, and cooling and chip removal are effective.
Claims (5)
1, a kind of easily dismountable abrasive tool for accurate grinding high-hardness revolving sphere, it is characterized in that comprising connecting axle, dish-shaped mill matrix, abrasive material piece, dish mill matrix is fixed on the connecting axle by screw, the abrasive material piece is fixed on the dish-shaped mill matrix by screw, the abrasive material piece is that five equilibrium is arranged in the form of a ring on dish-shaped mill matrix, whole grinding tool is connected with grinding spindle by connecting axle, directly logical cooling fluid in the connecting axle.
2, easily dismountable abrasive tool for accurate grinding high-hardness revolving sphere according to claim 1, it is characterized in that, the interior inclined-plane and the centre of gyration line of described dish-shaped mill matrix are at 45, on interior inclined-plane, be provided with the even number groove, centre bit at groove installs a hole, is used to install the abrasive material piece, on the end face of dish-shaped mill matrix, the endface position of corresponding aperture is provided with a screwed hole, is used for fixing the abrasive material piece.
3, easily dismountable abrasive tool for accurate grinding high-hardness revolving sphere according to claim 1 is characterized in that, the cooling fluid hole is offered at the center of described connecting axle, and this cooling fluid hole leads to cooling fluid.
4, easily dismountable abrasive tool for accurate grinding high-hardness revolving sphere according to claim 1, it is characterized in that, described abrasive material piece comprises abrasive material piece matrix, abrasive material, abrasive material is bonded on the abrasive material piece matrix with glue, establish a groove that is 90 ° on the cylindrical handle of abrasive material piece matrix, abrasive material piece matrix is fixed on the dish-shaped mill matrix by the screw on the dish-shaped mill matrix.
According to claim 1 or 4 described easily dismountable abrasive tool for accurate grinding high-hardness revolving sphere, it is characterized in that 5, the quantity of described abrasive material piece is even number, the abrasive material piece is symmetrically distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102034524A CN101412199A (en) | 2008-11-27 | 2008-11-27 | Easily dismountable abrasive tool for accurate grinding high-hardness revolving sphere |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102034524A CN101412199A (en) | 2008-11-27 | 2008-11-27 | Easily dismountable abrasive tool for accurate grinding high-hardness revolving sphere |
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| Publication Number | Publication Date |
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| CN101412199A true CN101412199A (en) | 2009-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008102034524A Pending CN101412199A (en) | 2008-11-27 | 2008-11-27 | Easily dismountable abrasive tool for accurate grinding high-hardness revolving sphere |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325390A (en) * | 2014-09-05 | 2015-02-04 | 天津市汇晶丰精密机械有限公司 | Emery grinding head for polishing metal workpiece |
| CN108237466A (en) * | 2016-12-27 | 2018-07-03 | 上海崇明机床厂 | A kind of horizontal steel ball processing machine |
| CN110549198A (en) * | 2019-08-21 | 2019-12-10 | 重庆川仪调节阀有限公司 | Internal spherical surface grinding machine |
-
2008
- 2008-11-27 CN CNA2008102034524A patent/CN101412199A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325390A (en) * | 2014-09-05 | 2015-02-04 | 天津市汇晶丰精密机械有限公司 | Emery grinding head for polishing metal workpiece |
| CN108237466A (en) * | 2016-12-27 | 2018-07-03 | 上海崇明机床厂 | A kind of horizontal steel ball processing machine |
| CN110549198A (en) * | 2019-08-21 | 2019-12-10 | 重庆川仪调节阀有限公司 | Internal spherical surface grinding machine |
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Open date: 20090422 |