CN203887284U - Passivating and chamfering device - Google Patents
Passivating and chamfering device Download PDFInfo
- Publication number
- CN203887284U CN203887284U CN201420274642.6U CN201420274642U CN203887284U CN 203887284 U CN203887284 U CN 203887284U CN 201420274642 U CN201420274642 U CN 201420274642U CN 203887284 U CN203887284 U CN 203887284U
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- CN
- China
- Prior art keywords
- edge
- chamfering
- bolt hole
- passivation
- operating blade
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- Expired - Fee Related
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Abstract
The utility model discloses a passivating and chamfering device which comprises a chamfering cutter block and an elastic piece. The chamfering cutter block is fixedly connected on the elastic piece and is provided with a front operating blade and a rear operating blade, the front operating blade as well as the rear operating blade and the center line of a drilling shaft of a rail bolt hole double-chamfer cemented-carbide composite drill form 45-degree angles, the front operating blade and the rear operating blade are respectively used for chamfering orifices of two sides of a bolt hole of the rail bolt hole double-chamfer cemented-carbide composite drill, the front operating blade is subjected to passivating treatment through a pneumatic grinder, and a layer of walnut grains with a certain amount of passivation is attached to the surface of the front operating blade. Forward resistance of the chamfering cutter block can be increased during chamfering by appropriate passivation treatment of the front operating blade of the chamfering cuter block through the pneumatic grinder, the chamfering cutter block is ensured to be completely concealed in a groove during chamfering of the bolt hole, and a good chamfering effect is achieved.
Description
Technical field
The utility model relates to metal cutting processing technique field, relates to specifically a kind of passivation corner cutting off apparatus based on the two-sided chamfered edge carbide alloy of rail bolt hole combination drill.
Background technology
" turner one is cutter ", " three minutes technology, seven minutes cutters " have illustrated the importance of cutter to turner brief and concisely.Along with scientific and technical develop rapidly, in machinery manufacturing industry, product variety constantly increases, and version is more complicated, and material property improves constantly, and therefore, the specification requirement in turning processing is improved constantly, particularly higher to the requirement of the cutting ability of cutter.Therefore most enterprises have all adopted cutter to be set to chamfered edge structure, the two-sided chamfered edge carbide alloy of rail bolt hole combination drill structure especially.But because the existence of chamfered edge has also produced some other problemses accordingly, mainly contain that the chamfered edge degree of depth is excessive, chamfered edge angle not and bellmouth orifice.By analysis in rail bolt hole process, causing bolt hole chamfered edge oversize is because chamfering edge tool piece cutter piece is not pressed in insert groove completely in boring chamfered edge process, causes the cutter piece exceeding that bolt hole edge is excised to a part more and causes depth dimensions to exceed standard and bellmouth orifice defect.
For cutter piece can be hidden in groove completely, there is people that blade lamellar body is pounded to the height that bending reduces cutter head downwards, although such method has been improved the chamfered edge depth dimensions of bolt hole inlet side really.But after boring completes, when rollback carries out outlet side chamfered edge, the height that cutter piece is upspring causes again the too small defect that even there is no chamfered edge of outlet side chamfered edge depth dimensions not, therefore this method is also inadvisable.
Utility model content
Technical problem to be solved in the utility model is that the two-sided chamfered edge carbide alloy of rail bolt hole of the prior art combination drill exists in process that the chamfered edge degree of depth is excessive, chamfered edge angle not and the problem of bellmouth orifice.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of passivation corner cutting off apparatus, comprise chamfering edge tool piece and shell fragment, described chamfering edge tool piece is fixed on described shell fragment, described chamfering edge tool piece has front work edge and rear work edge, described front work edge and described rear work edge respectively with the auger spindle center line angle at 45 ° of the two-sided chamfered edge carbide alloy of rail bolt hole combination drill, be respectively used to aperture, the both sides chamfered edge of the bolt hole of the two-sided chamfered edge carbide alloy of described rail bolt hole combination drill, wherein said front work edge is through pneumatic grinder Passivation Treatment, and the surface of described front work edge is with the walnut particle of the certain passivation amount of one deck;
The other end of described shell fragment is fixed in the groove of holding successfully in advance on the drill boom of the two-sided chamfered edge carbide alloy of described rail bolt hole combination drill, become cantilever position, described in when being subject to enough External Force Actings, chamfering edge tool piece can be hidden in groove, remove external force after described chamfering edge tool piece under the effect of the elastic restoring force of described shell fragment, eject groove.
The surface passivation amount of described front work edge is 35-40 micron further.
Adopt technique scheme, the utility model at least comprises following beneficial effect:
Passivation corner cutting off apparatus described in the utility model, use pneumatic grinder by the front work edge of chamfering edge tool piece carry out appropriate Passivation Treatment can increase chamfered edge time described in the advance resistance of chamfering edge tool piece, thereby increase the suffered radial component of shell fragment.Guarantee that described chamfering edge tool piece can be hidden into groove completely when carrying out bolt hole chamfered edge, has good chamfered edge effect.
accompanying drawing explanation
Fig. 1 is the structural representation of passivation corner cutting off apparatus described in the utility model;
Fig. 2 is the structural representation of the two-sided chamfered edge carbide alloy of the rail bolt hole combination drill of use passivation corner cutting off apparatus described in the utility model.
Wherein: 1. chamfering edge tool piece, 2. shell fragment, 3. front work edge, 4. rear work edge.
the specific embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1 to Figure 2, for meeting a kind of passivation corner cutting off apparatus described in the utility model, comprise chamfering edge tool piece and shell fragment, described chamfering edge tool piece is fixed on described shell fragment, described chamfering edge tool piece has front work edge and rear work edge, described front work edge and described rear work edge respectively with the auger spindle center line angle at 45 ° of the two-sided chamfered edge carbide alloy of rail bolt hole combination drill, be respectively used to aperture, the both sides chamfered edge of the bolt hole of the two-sided chamfered edge carbide alloy of described rail bolt hole combination drill, wherein said front work edge is through pneumatic grinder Passivation Treatment, the surface of described front work edge is with the walnut particle of the certain passivation amount of one deck.
The other end of described shell fragment is fixed in the groove of holding successfully in advance on the drill boom of the two-sided chamfered edge carbide alloy of described rail bolt hole combination drill, become cantilever position, described in when being subject to enough External Force Actings, chamfering edge tool piece can be hidden in groove, remove external force after described chamfering edge tool piece under the effect of the elastic restoring force of described shell fragment, eject groove.
The surface passivation amount of described front work edge is 35-40 micron further.Illustrate, when not carrying out the Passivation Treatment of described front work edge, the chamfered edge degree of depth is 0.7 mm, and after the Passivation Treatment described in the present embodiment, the chamfered edge degree of depth can reach 2 mm.Described in the present embodiment, the design of passivation amount is the data that obtain on the basis of great many of experiments, and the setting by these data can obtain good chamfered edge effect.
Described shell fragment starts crooked gradually under the effect that is subject to cutting radial component Py, and at the jib-length of described shell fragment and section one regularly, the bending deformation quantity δ of described shell fragment is directly proportional to Py.In metal cutting theory, cutting force and cutting depth ap are linear ratio relation, and when ap increases to certain value, Py also increases and impels described chamfering edge tool piece to be absorbed in groove completely, stop the cutting of described chamfering edge tool piece to aperture, complete the chamfered edge process to import one side opening mouth.When drilling machine continues feeding, while making the described rear work edge of described chamfering edge tool piece reach the opposite side boring after open-work, described chamfering edge tool piece ejects groove under the elastic restoring force effect of described shell fragment.Now, drilling machine retreats, and described rear work edge will cut outlet side nose end mouth, and repeat said process, and described chamfering edge tool piece is hidden into groove again, realizes work and moves back chamfered edge.The work flow of boring is: drilling machine F.F. → work shot borehole → work is entered chamfered edge → drilling machine and continued work and enter position → drilling machine retreat → work is moved back the reset of chamfered edge → drilling machine.
According to above-mentioned principle, can control the chamfered edge degree of depth by changing the rigidity of described shell fragment.The rigidity of described shell fragment is mainly subject to the impact of shell fragment thickness, adopts different shell fragment thickness, can obtain the different chamfered edge degree of depth.Due to the routine techniques means that are those skilled in the art with the setting of described shell fragment thickness of selecting of described shell fragment, so locate to repeat no more.
Passivation corner cutting off apparatus described in the utility model, use pneumatic grinder by the front work edge of chamfering edge tool piece carry out appropriate Passivation Treatment can increase chamfered edge time described in the advance resistance of chamfering edge tool piece, thereby increase the suffered radial component of shell fragment.Guarantee that described chamfering edge tool piece can be hidden into groove completely when carrying out bolt hole chamfered edge, has good chamfered edge effect.
Above an embodiment of the present utility model is had been described in detail, but the preferred embodiment that described content is only created for the utility model can not be considered to the practical range of creating for limiting the utility model.All equalization variations of doing according to the utility model creation application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (2)
1. a passivation corner cutting off apparatus, it is characterized in that, comprise chamfering edge tool piece and shell fragment, described chamfering edge tool piece is fixed on described shell fragment, described chamfering edge tool piece has front work edge and rear work edge, described front work edge and described rear work edge respectively with the auger spindle center line angle at 45 ° of the two-sided chamfered edge carbide alloy of rail bolt hole combination drill, be respectively used to aperture, the both sides chamfered edge of the bolt hole of the two-sided chamfered edge carbide alloy of described rail bolt hole combination drill, wherein said front work edge is through pneumatic grinder Passivation Treatment, the surface of described front work edge is with the walnut particle of the certain passivation amount of one deck,
The other end of described shell fragment is fixed in the groove of holding successfully in advance on the drill boom of the two-sided chamfered edge carbide alloy of described rail bolt hole combination drill, become cantilever position, described in when being subject to enough External Force Actings, chamfering edge tool piece can be hidden in groove, remove external force after described chamfering edge tool piece under the effect of the elastic restoring force of described shell fragment, eject groove.
2. passivation corner cutting off apparatus as claimed in claim 1, is characterized in that: the surface passivation amount of described front work edge is 35-40 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274642.6U CN203887284U (en) | 2014-05-27 | 2014-05-27 | Passivating and chamfering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274642.6U CN203887284U (en) | 2014-05-27 | 2014-05-27 | Passivating and chamfering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203887284U true CN203887284U (en) | 2014-10-22 |
Family
ID=51713732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420274642.6U Expired - Fee Related CN203887284U (en) | 2014-05-27 | 2014-05-27 | Passivating and chamfering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203887284U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107716963A (en) * | 2017-11-21 | 2018-02-23 | 绵阳市绵工工具有限公司 | A kind of two-way chamfering tool |
-
2014
- 2014-05-27 CN CN201420274642.6U patent/CN203887284U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107716963A (en) * | 2017-11-21 | 2018-02-23 | 绵阳市绵工工具有限公司 | A kind of two-way chamfering tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 241000 Wuhu economic and Technological Development Zone, Wuhu, Hengshan Road, No. 35, Wuhu automotive electronics Incubation Park building B0906-0908 Patentee after: Anhui Hongyi automotive technology Limited by Share Ltd Address before: 241008 Anhui Province, Wuhu City Jiuhua Jiujiang District Road three Tong Industrial Park building A district on the third floor Patentee before: Wuhu Rayleigh precision assembly Co., Ltd |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20200527 |