CN203356760U - Carborundum coated involute spline extrusion knife - Google Patents
Carborundum coated involute spline extrusion knife Download PDFInfo
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- CN203356760U CN203356760U CN 201320421358 CN201320421358U CN203356760U CN 203356760 U CN203356760 U CN 203356760U CN 201320421358 CN201320421358 CN 201320421358 CN 201320421358 U CN201320421358 U CN 201320421358U CN 203356760 U CN203356760 U CN 203356760U
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- spline
- extruding
- involute
- carborundum
- cutter
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Abstract
The utility model discloses a carborundum coated involute spline extrusion knife which comprises a base and a carborundum particle coating. The base comprises a leading-in end, a guide spline, an extrusion spline and a leading-out end. The carborundum particle coating is formed by coating carborundum particles on the extrusion spline of the base. The carborundum coated involute spline extrusion knife has the advantages of high processing precision, low costs, operation easiness and the like, can realize the cutting process on a common hydraulic press or a broaching machine, and is applicable to the extrusion precision machining of tooth surfaces and large diameter sized portions of an involute internal spline of a hardened part, especially to that of a hardened part of over 60HRC.
Description
Technical field
The utility model relates to a kind of being applicable to quenched components consisting involute internal spline gear face and large footpath size is carried out to the precision machined gold-plated emery involute spline extruding cutter of squash type.
Background technology
Involute spline is the important connecting mode of machine driving, and the height of spline precision has directly determined the accuracy of transmission, particularly in fields such as medium-to-high grade car, aviation power, precision optical machineries, embodies particularly evidently.Due to the restriction of heat-treatment processing process, the variation of accessory size and shape is unavoidable.At present, domestic nearly all enterprise does not also possess the heat treatment technological ability that rear part internal spline carries out accurate grinding processing that hardens, only there are two speed changer manufacturing enterprises to introduce German processing technology: to purchase high speed broaching lathe and carbide broach, adopt high speed hard draw process, efficiency is higher, but cost is equally very high.The high speed broaching machine price 4,000,000 RMB left and right of a 10T cutting force, the carbide broach of a fabricated construction is more than 100,000 yuan, also there is practical problems such as easily collapsing the even broken cutter of tooth reconditioning difficulty in alloy broaching tool itself, this process is only suitable in producing in enormous quantities and product has than the enterprise of high added value and adopts, particularly there are many specifications for most domestic enterprise, small lot, the part manufacturer of research and development property characteristics is also inapplicable, therefore development is applicable to the fine finishining of quenched components consisting internal spline, cost is low, the Novel cutting processing technology of instant effect, numerous large technical tasks of being engaged in involute spline parts machining affiliated enterprise have been become.
Summary of the invention
Technical problem to be solved in the utility model is to propose the gold-plated emery involute spline extruding cutter that a kind of machining accuracy is high, cost is low, easy and simple to handle, it can realize cutting process on conventional oil press or broaching machine, and be applicable to especially harden to hardening 60HRC above part involute internal spline gear face and large footpath size are carried out the squash type Precision Machining.
For solving the problems of the technologies described above, the gold-plated emery involute spline extruding of the utility model cutter comprises matrix and particles of silicon carbide coating, described matrix comprises leading-in end, guiding spline, extruding spline and derivation end, and described particles of silicon carbide coating is plated on the described extruding spline of described matrix by particles of silicon carbide.
Above-mentioned gold-plated emery involute spline extruding cutter, the granularity selection scope of described particles of silicon carbide is 120# ~ 400#.
Above-mentioned gold-plated emery involute spline extruding cutter, the thickness of coating of described particles of silicon carbide coating is between 0.125 ~ 0.038mm.
Above-mentioned gold-plated emery involute spline extruding cutter, the large footpath of described extruding spline and one or two in flank are with tapering, and one-sided tapering is 0.02 ~ 0.03mm/100mm, and the length of described extruding spline is set according to the actual cut allowance.
Above-mentioned gold-plated emery involute spline extruding cutter, described extruding spline is the monoblock type spline, continuous and stable cutting during work, more than machined surface roughness Ra0.8.
Above-mentioned gold-plated emery involute spline extruding cutter, described extruding spline accuracy class is not less than 4 grades of GB3478 defined.
The utility model is owing to having adopted above-mentioned technical pattern, to push cutter by leading-in end, guiding spline during use and insert the prefabricated splined hole of workpiece, at derivation end end face, press, making to push spline moment passes through workpiece, just can complete smoothly cutting process on the conventional oil press, also can the front and back end of extruding cutter in addition before and after the design of handle of a knife, realize machining on broaching machine.Monoblock type continuous cutting processing during work, more than machined surface roughness reaches Ra0.8, after part processing, the spline precision reaches more than 5 grades of GB3478 defined, can carry out the squash type Precision Machining to quenched components consisting involute internal spline gear face and large footpath size, there is the advantages such as machining accuracy is high, cost is low, easy and simple to handle.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model extruding cutter;
Fig. 2 is the A-A cross-sectional view in Fig. 1;
Fig. 3 is the local enlarged diagram of I part in Fig. 2.
The specific embodiment
As shown in Figure 1, the gold-plated emery involute spline extruding of the utility model cutter comprises that matrix 1 and diamond dust coating 2(are please in conjunction with shown in Fig. 3).Matrix 1 adopts the tool steel material to make, comprise leading-in end 11, guiding spline 12, extruding spline 13 and derive end 14, the size that the size of matrix 1 is especially pushed spline 13 takes into full account the thickness of coating 2 and calculates and manufacture and design through precision, has reached the gauge precision.Diamond dust is plated on the extruding spline 13 of matrix 1 and forms diamond dust coating 2, the grain graininess range of choice of diamond dust is 120#~400#, the thickness of diamond dust coating 2 is between 0.125~0.038mm, and the accuracy class of pushing spline 13 after plating is not less than 4 grades of GB3478 defined.Extruding spline 13 is the monoblock type spline, and continuous and stable cutting during work, more than machined surface roughness Ra0.8.The large footpath of extruding spline 13 and one or two in flank are with tapering (being that large footpath or flank are with tapering or both with tapering), and one-sided tapering is 0.02 ~ 0.03mm/100mm, and the length of extruding spline 13 is set according to the actual cut allowance.By leading-in end 11, guiding spline 12, the utility model is pushed to the prefabricated splined hole that cutter inserts workpiece 3 during work, press or adopt broaching layout at the end face of deriving end 14, make to push 13 moments of spline by workpiece 3, by the large footpath of extruding spline 13, the variation of flank tapering, just can complete fast, reposefully the extruding machining.
Claims (5)
1. gold-plated emery involute spline pushes cutter, it is characterized in that, it comprises matrix and particles of silicon carbide coating, and described matrix comprises leading-in end, guiding spline, extruding spline and derivation end, and described particles of silicon carbide coating is plated on the described extruding spline of described matrix by particles of silicon carbide.
2. gold-plated emery involute spline extruding cutter as claimed in claim 1, is characterized in that, the granularity selection scope of described particles of silicon carbide is 120# ~ 400#.
3. gold-plated emery involute spline extruding cutter as claimed in claim 1 or 2, is characterized in that, the thickness of coating of described particles of silicon carbide coating is between 0.125 ~ 0.038mm.
4. gold-plated emery involute spline as claimed in claim 1 or 2 pushes cutter, it is characterized in that, the large footpath of described extruding spline and one or two in flank are with tapering, and one-sided tapering is 0.02 ~ 0.03mm/100mm, and the length of described extruding spline is set according to the actual cut allowance.
5. gold-plated emery involute spline extruding cutter as claimed in claim 1 or 2, is characterized in that, described extruding spline is the monoblock type spline, more than machined surface roughness Ra0.8.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201320421358 CN203356760U (en) | 2013-07-16 | 2013-07-16 | Carborundum coated involute spline extrusion knife |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201320421358 CN203356760U (en) | 2013-07-16 | 2013-07-16 | Carborundum coated involute spline extrusion knife |
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CN203356760U true CN203356760U (en) | 2013-12-25 |
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CN 201320421358 Expired - Fee Related CN203356760U (en) | 2013-07-16 | 2013-07-16 | Carborundum coated involute spline extrusion knife |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103350259A (en) * | 2013-07-16 | 2013-10-16 | 恒锋工具股份有限公司 | Carborundum plated involute spline extrusion knife |
-
2013
- 2013-07-16 CN CN 201320421358 patent/CN203356760U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103350259A (en) * | 2013-07-16 | 2013-10-16 | 恒锋工具股份有限公司 | Carborundum plated involute spline extrusion knife |
CN103350259B (en) * | 2013-07-16 | 2015-09-02 | 恒锋工具股份有限公司 | Gold-plated emery involute spline extruding cutter |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
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: 20131225 Termination date: 20180716 |