CN203197758U - Grinding wheel for highly efficient and deep grinding - Google Patents
Grinding wheel for highly efficient and deep grinding Download PDFInfo
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- CN203197758U CN203197758U CN 201220592412 CN201220592412U CN203197758U CN 203197758 U CN203197758 U CN 203197758U CN 201220592412 CN201220592412 CN 201220592412 CN 201220592412 U CN201220592412 U CN 201220592412U CN 203197758 U CN203197758 U CN 203197758U
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- emery wheel
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Abstract
The utility model discloses a grinding wheel for highly efficient and deep grinding, the grinding wheel comprises a grinding wheel body (1), the grinding wheel body (1) comprises a rough machining grinding surface for rough machining and a fine machining grinding surface for fine machining, the rough machining grinding surface is a rough machining conical surface (2), and the fine machining grinding surface is a fine machining cylindrical surface (3). The grinding wheel with a combination structure of the rough machining conical surface and the fine machining cylindrical surface is employed, the rough machining and the fine machining of a work piece can be completed at the same time, the material removal thickness of a single abrasive particle of the grinding wheel is reduced, the crushing probability of the abrasive particle is reduced, the risk of surface deformation of the work piece is reduced, and deep-feeding grinding machining at higher speeds of grinding wheel and work piece feeding is allowed; and the grinding wheel is also advantaged by large material removal in unit time, high machining efficiency, good surface quality of the workpiece after being grinded, high precision, low abrasion loss, long service lifetime and the like, and the grinding wheel is applied to highly efficient and deep grinding machining.
Description
Technical field
The utility model relates to a kind of emery wheel, particularly relates to a kind of emery wheel for efficient deep grinding.
Background technology
Reply product high accuracy, high-quality, supermatic requirement, efficient, high accuracy, high flexibility processing have become the main development trend of domestic and international grinding technique.In traditional grinding, in order to improve the grinding clearance, normally adopt the method that increases speed of grinding wheel, work speed and grinding depth.Yet this will cause that the grinding area temperature significantly raises, and then causes grinding skin pattern and the roughness of workpiece sharply to worsen.In order to address the above problem, Chinese scholars has been carried out number of research projects at this point, has emerged a series of new Grinding Technology such as high-speed grinding, efficient creep feed grinding, and has all obtained reasonable effect separately.But, in actual application, still have some limitation.As high-speed grinding, improve material removing rate by increasing grinding speed, but its grinding depth is subjected to certain restriction, if grinding depth is excessive, will cause grinding force to increase, grinding skin produces bigger size and dimension trueness error, thereby surface quality is affected; In addition, increase grinding depth, can cause the broken probability of emery wheel abrasive particle to increase, cause the abrasion of grinding wheel quickening, therefore, high-speed grinding generally is applicable to the final Surface Machining of removing thinner thickness.Creep feed grinding is to adopt to increase grinding depth, reduction feed speed to obtain the processing method of higher material clearance and better machined surface quality, and this technology can replace roughing operations such as turning and milling.Yet the normal grinding force of creep feed grinding is 2～4 times of plain grinding, and the distortion of grinding skin-material is bigger, will produce bigger residual stress; In addition, the increase of grinding depth can cause that the contact area of emery wheel and workpiece increases, and grinding fluid is difficult to penetrate into grinding area, and it lubricates and cooling effect will be subjected to great influence, causes the crudy of part not high usually.Therefore, efficient deep grinding is subjected to all multifactor influences in application process, be difficult to satisfy simultaneously the requirement of working (machining) efficiency and crudy, thereby press for relevant grinding attachment is improved.
The utility model content
Technical problem to be solved in the utility model provides and is a kind ofly guaranteeing to improve material removing rate under the prerequisite of crudy, and roughing and the finishing step of workpiece are finished simultaneously, thereby obtain the emery wheel that is used for efficient deep grinding than high efficiency.
In order to solve the problems of the technologies described above, the emery wheel that is used for efficient deep grinding that the utility model provides, comprise the emery wheel body, described emery wheel body is by being used for rough machined roughing grinding face and forming for accurately machined fine finishining grinding face, described roughing grinding face is the roughing conical surface, and described fine finishining grinding face is the fine finishining periphery.
The tapering of described roughing conical surface is 10 °～20 °, and the width of described fine finishining periphery is 4mm～6mm, and diameter is 250mm～300mm.
The abrasive material of described roughing conical surface and fine finishining periphery is to create on grinding wheel base body by abrasive material is electroplated by nickel cobalt (alloy).
Described abrasive material is cubic boron nitride, matrix surface is put the preceding nickel preplating cobalt bottom of sand, electroplating the abrasive material that will press close to bottom by the short time more tentatively is fixed in the coating of matrix surface, sand removal enters and adds the thickness coating operation then, making the height of the outstanding electrodeposited coating of abrasive particle is 30%～50% of whole grit size, repairs at last.
Described finishing is to adopt trimmer that the fine finishining periphery is carried out the radial feed finishing of 20 μ m, and the single finishing degree of depth is 1 μ m.
Adopt the emery wheel that is used for efficient deep grinding of technique scheme, grinding wheel base body is designed to cone and cylindrical combining structure, utilize nickel-cobalt alloy plating with cubic boron nitride abrasive materials and matrix bond together, matrix surface is put the preceding nickel preplating cobalt bottom of sand, electroplating the abrasive material that will press close to bottom by the short time tentatively is fixed in the coating of matrix surface, sand removal enters and adds the thickness coating operation then, making the height of the outstanding electrodeposited coating of abrasive particle is 30%～50% of whole grit size, again the emery wheel periphery is repaired, its radially trim amount be 20 μ m, repair the degree of depth is 1 μ m at every turn.The processing starting stage, the roughing conical surface contacts with workpiece and carries out the material removal, under big cutting-in condition, and workpiece material clearance height, but processing back surface of the work is comparatively coarse, belongs to the roughing process; Traverse feed along with workpiece, the fine finishining periphery contacts with surface of the work, the roughing conical surface is proceeded new skin-material and is removed in a large number, the fine finishining periphery then carries out follow-up fine finishining to the finished surface that the roughing conical surface is finished, at this moment, surface of the work roughing and fine finishining are carried out simultaneously, thereby can once obtain good final finished surface.
Adopt the emery wheel that is used for efficient deep grinding of technique scheme, compared with prior art, its technique effect is:
1. this structure emery wheel can be finished car simultaneously at the single grinding stroke, mill and roughing and fine finishining that multiple working procedure such as mill is formed.Under big cutting-in condition, the roughing conical surface can carry out lot of materials to workpiece to be removed, and finish roughing, but processing back surface of the work is comparatively coarse; The fine finishining periphery then can carry out follow-up finishing to the finished surface that the roughing conical surface is finished, and finishes the fine finishining on final surface.Because the thickness of cutting of single abrasive particle in the single grinding stroke of fine finishining periphery is less, make the suffered tangential grinding force effect of abrasive particle reduce, and this emery wheel obtain far above plain grinding material processed clearance when can guarantee close surface accuracy with plain grinding.
2. emery wheel adopts cubic boron nitride abrasive grain, and this abrasive particle has higher hardness, thermal conductivity and heat endurance, and therefore, emery wheel can be strengthened the conduction of grinding area heat in Grinding Process, reduced the grinding area temperature to a certain extent.
3. adopt nickel preplating cobalt bottom-subregion to put sand-sand removal-Jia thickness coating-finishing process route, improved grinding wheel shape retentivity, cutting blade contour, improved profile precision, the material of emery wheel and removed efficient; In addition, abrasive material need not to carry out again shaping and dressing after finishing, simplified the later stage finishing process of emery wheel.
4. the embedding degree of depth of emery wheel abrasive particle is bigger, and abrasive particle is bonding firmly by nickel cobalt coating and matrix, and the abrasive particle obscission can not occur, has reduced the probability of abrasive particle fragmentation; In addition, the abrasive dust layer thickness is not less owing to being out of shape, and abrasive particle also is difficult for broken and comes off, and the wear extent of emery wheel is very little.
5. the thickness of cutting of single abrasive particle in the single grinding stroke of wheel face is less, and in the length feed direction, the contact length of emery wheel and workpiece is short, and grinding fluid very easily infiltrates grinding area, can carry out effectively lubricating and cooling to it.
6. the normal grinding force of this structure emery wheel is less, and the distortion of processing skin-material is less, and the inner residual stress that produces of workpiece is very little, can effectively control the machining accuracy of part; Simultaneously, the residual cut channel behind single abrasive grain cutting is more shallow, and workpiece surface roughness is better.
7. this structure emery wheel allows to work under big workpiece feed speed, reduces than grinding energy, and the thermal force that enters workpiece surface reduces, and the temperature of grinding skin can be effectively controlled.
In sum, the utility model adopts the emery wheel of conical surface and periphery combining structure, can in the single grinding stroke, finish roughing and finishing step simultaneously, can under the high speed feed condition, grind processing deeply, its material removing rate is high, and the excision thickness of single abrasive particle of emery wheel is less, and suffered grinding force is little, has reduced the probability of abrasive particle fragmentation, and grinding fluid very easily infiltrates grinding area, can obtain machined surface quality preferably.
Description of drawings
Fig. 1 is the grinding wheel structure schematic diagram.
Fig. 2 is the emery wheel processing schematic diagram for efficient deep grinding.
Fig. 3 is emery wheel and workpiece contact condition schematic diagram.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, Fig. 2 and Fig. 3, emery wheel body 1 is by being used for rough machined roughing conical surface 2 and forming for accurately machined fine finishining periphery 3, the tapering of roughing conical surface 2 is 10 °～20 °, the width of fine finishining periphery 3 is 4mm～6mm, diameter is 250mm～300mm, and the abrasive material 5 of roughing conical surface 2 and fine finishining periphery 3 is to create into by abrasive material 9 is fixed on the grinding wheel base body 10 by nickel-cobalt alloy plating.
Referring to Fig. 1, Fig. 2 and Fig. 3, grinding wheel base body 10 is polished before preplating, deoil, technologies such as cleaning, nickel preplating cobalt bottom 7 on grinding wheel base body 10 surfaces, its thickness is about 5 μ m, abrasive particle 9 is cubic boron nitride, adopt knockout method and nickel cobalt bottom 7 to fit ready abrasive particle 9, electroplating the abrasive material 9 that will press close to bottom by the short time tentatively is fixed in the coating on grinding wheel base body 10 surfaces, wash away the abrasive particle that wheel face adheres to lentamente with distilled water, finish sand removal and handle laggard electroplating thickening, make that the outstanding height of electroplating bonding agent layer 8 of abrasive particle is 30%～50% of whole grit size, adopt trimmer that fine finishining periphery 3 is repaired, its radially trim amount be 20 μ m, repair the degree of depth is 1 μ m at every turn, thereby forms abrasive material 5.
Add man-hour, hardness according to rapidoprint sets corresponding grinding parameter (emery wheel body 1 speed: 80m/s～120m/s, workpiece 4 feed speeds: 3m/min～20m/min, grinding depth is 0.2mm～0.7mm, single grinding stroke lateral feed 0.1mm～1mm), adjust the relative position of emery wheel body 1 and workpiece 4, the processing starting stage, the abrasive material 5 of the roughing conical surface 2 of emery wheel body 1 at first contacts with workpiece 4 and carries out the material removal, under big cutting-in condition, workpiece 4 material removing rate height, but workpiece 4 surfaces, processing back are comparatively coarse, belong to the roughing process; Traverse feed along with workpiece 4, fine finishining periphery 3 contacts with workpiece 4 surfaces, the roughing conical surface 2 of emery wheel body 1 is proceeded new skin-material and is removed in a large number, the finished surface that fine finishining periphery 3 is then finished roughing conical surface 2 carries out subsequent fine processing, at this moment, workpiece 4 surperficial roughing and fine finishining are carried out simultaneously.Because the grinding successively of the roughing conical surface 2 of emery wheel body 1, make that the actual cut thickness 6 of single the abrasive particle in emery wheel body 1 surface is very little, single abrasive particle suffered grinding force in grinding process reduces, residual cut channel after its cutting is more shallow simultaneously, and the distortion of processing skin-material is less, and the workpiece 4 inner residual stress that produce are very little, can control the machining accuracy of part effectively, the surface of the work flatness is better, and the broken probability reduction of abrasive particle, and the wear extent of emery wheel body 1 can be effectively controlled.In addition, in the length feed direction, emery wheel body 1 is less with the contact length of workpiece 4, and grinding fluid infiltrates grinding area easily, can carry out effective lubricating and cooling to it.Emery wheel after the improvement has the crudy identical with plain grinding, and the grinding depth that allows strengthens, and its material removing rate obviously improves.
Claims (3)
1. one kind is used for the efficient profoundly emery wheel of grinding, comprise emery wheel body (1), it is characterized in that: described emery wheel body (1) is by being used for rough machined roughing grinding face and forming for accurately machined fine finishining grinding face, described roughing grinding face is roughing conical surface (2), and described fine finishining grinding face is fine finishining periphery (3).
2. according to claim 1 for the efficient profoundly emery wheel of grinding, it is characterized in that: the tapering of described roughing conical surface (2) is 10 °～20 °, the width of described fine finishining periphery (3) is 4 mm～6mm, and diameter is 250 mm～300mm.
3. according to claim 1 and 2 for the efficient profoundly emery wheel of grinding, it is characterized in that: the abrasive material (5) of described roughing conical surface (2) and fine finishining periphery (3) is upward to create into by abrasive material (9) is bonded in grinding wheel base body (10) by nickel-cobalt alloy plating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220592412 CN203197758U (en) | 2012-11-12 | 2012-11-12 | Grinding wheel for highly efficient and deep grinding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220592412 CN203197758U (en) | 2012-11-12 | 2012-11-12 | Grinding wheel for highly efficient and deep grinding |
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| Publication Number | Publication Date |
|---|---|
| CN203197758U true CN203197758U (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220592412 Expired - Fee Related CN203197758U (en) | 2012-11-12 | 2012-11-12 | Grinding wheel for highly efficient and deep grinding |
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| CN (1) | CN203197758U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106031998A (en) * | 2015-03-20 | 2016-10-19 | 江苏东方砂轮有限公司 | Grinding wheel with improved structure |
| CN109773671A (en) * | 2017-12-05 | 2019-05-21 | 长沙理工大学 | A kind of orderly micro groove structure multi-player super-hard abrasive material electroplating abrasion wheel |
-
2012
- 2012-11-12 CN CN 201220592412 patent/CN203197758U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106031998A (en) * | 2015-03-20 | 2016-10-19 | 江苏东方砂轮有限公司 | Grinding wheel with improved structure |
| CN109773671A (en) * | 2017-12-05 | 2019-05-21 | 长沙理工大学 | A kind of orderly micro groove structure multi-player super-hard abrasive material electroplating abrasion wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20131112 |