CN206622720U - Spiral bevel gear teeth portion cutting tool and its mounting structure - Google Patents
Spiral bevel gear teeth portion cutting tool and its mounting structure Download PDFInfo
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- CN206622720U CN206622720U CN201720229237.6U CN201720229237U CN206622720U CN 206622720 U CN206622720 U CN 206622720U CN 201720229237 U CN201720229237 U CN 201720229237U CN 206622720 U CN206622720 U CN 206622720U
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- blade
- knife bar
- knife
- rake face
- angle
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Abstract
The utility model discloses a kind of spiral bevel gear teeth portion cutting tool, and it is made up of blade, knife bar and coating.The blade positioned at the rear knife face of knife bar front end, knife top, minor flank and rake face by forming.The rake face is tilting to be set up relative to plane on knife bar in knife bar front end, rake face and refaces angle.The coating is only defined each surface of blade of shaping.The utility model is set up on the rake face of blade and refaces angle, the cutting edge inclination of blade is accordingly reduced, although this structure, which is improved, can strengthen knife top, have lost the Sharpness of blade.In order to solve this to contradiction, the utility model is also correspondingly improved on cutter mounting structure, concrete scheme is by knife bar oblique cutting into cutterhead, i.e. on knife bar angle of inclination beta is provided with plane and cutterhead between the vertical line of plane, the side effect at angle is refaced using β angle parts counteracting rake face, cutter is still had appropriate cutting edge inclination in installation site, be advantageous to sharp cutting.
Description
Technical field
A kind of mechanical cutting tool is the utility model is related to, specifically, the utility model is related to a kind of cutting gear teeth
The cutter in portion, particularly a kind of spiral bevel gear teeth portion cutting tool, the utility model further relate to spiral bevel gear teeth portion cutting tool
Mounting structure.
Background technology
The tooth form of spiral bevel gear is complicated many relative to the tooth form of bevel gear, and it is a kind of tooth of spatially structure, existing
There is spiral bevel gear under technical conditions still to be formed using Cutting Process.Cutter for cutting spiral bevel gear teeth portion belongs to
A kind of forming tool, because its blade shape and structure are relative complex, the cutter quality of only professional production factory manufacture is possible to
Reach design requirement.Currently, be commercially available for process spiral bevel gear teeth portion cutter, when dispatching from the factory after knife face, side face and knife top
Grinding-shaping, and heatproof coating is provided with rake face, such a cutter user, which buys back, just can be used for normal production.But
Normal wear occurs after a period of time use for these commodity cutters, and user, which will make prosthetic grinding, could be used for reproduction.Repair
The main target of renaturation grinding is to repair the point of a knife that is worn, and 0.5~1.0mm of point of a knife normal wear of such commodity cutter is just not
It can be used to produce, so repairing stock removal have to be larger than the actual wear extent of point of a knife.Because structure be present in the cutter of prior art
Defect, the fact that cause prosthetic stock removal big.On the one hand cutter, which is excessively ground, reduces service life, on the other hand also increase
The unproductive time of sharpening, it is therefore necessary to which design is made improvements to spiral bevel gear teeth portion cutting tool.
Utility model content
The utility model proposes that one kind is rational in infrastructure, corner wear amount is small, repairs mill mainly for the deficiencies in the prior art
The few spiral bevel gear teeth portion cutting tool of the amount of cutting.In addition, the utility model is in order to further improve the cutting ability of cutter, it is also right
Spiral bevel gear teeth portion cutting tool mounting structure is designed.
The utility model is achieved through the following technical solutions technical goal.
Spiral bevel gear teeth portion cutting tool, it is collectively constituted by blade, knife bar and coating.The blade is by before knife bar
Rear knife face, knife top, minor flank and the rake face composition at end.The knife bar is identical with material used in blade and is integrated into,
The lateral cross section of knife bar is rectangle.It is theed improvement is that：The rake face is tilting in knife bar front end, preceding knife in front-low-rear-high shape
Face is set up relative to plane on knife bar and refaces angle ψ=3 °~6 °.The coating is only defined each surface of blade of shaping.
As further improvement project, the coating is AlCrN.
Spiral bevel gear teeth portion cutting tool mounting structure, it forms positioning and mounting structure by cutter and cutterhead.The knife bar
Assigned into tilting shape in cutterhead, angle of inclination beta=6 °~11 ° are provided between the vertical line of plane on plane and cutterhead on knife bar.
The utility model compared with prior art, has the positive effect that：
1st, set up on the rake face of blade and reface angle, the cutting edge inclination of blade is accordingly reduced, obtain the structure at knife top
To reinforcing, wear extent is thus reduced, the cutting edge inclination reduction of blade supplements cutting angle with the angle of inclination beta reserved on cutterhead, really
Protect the sharp cutting ability of cutter；
2nd, the external coating in each face of blade, coating increase blade oxidation-resistance property and raising abrasive resistance, therefore cut
Unnecessary loss can be reduced during cutting so that cutter bulk life time improves nearly 10 times；
3rd, angle and the protection of additional coating are refaced because blade rake face is prefixed, blade wear extent is few during cutter use,
As long as the sharp cutting power of blade can be recovered by making a small amount of grinding at rake face and knife top, few grinding had both reduced consumption diamond
The loss of emery wheel and cutter itself, the unproductive time of sharpening is saved again.
Brief description of the drawings
Fig. 1 is the schematic perspective view of the utility model cutter structure, and shaded portion is external coating in figure.
Fig. 2 is the schematic perspective view of prior art cutter, and shaded portion is external coating in figure.
Fig. 3 is the utility model cutter and cutterhead mounting structure schematic diagram.
Embodiment
The utility model is described in further detail below according to accompanying drawing and in conjunction with the embodiments.
Spiral bevel gear teeth portion cutting tool shown in Fig. 1, it is collectively constituted by blade, knife bar and coating.The blade is
The main body of cutter, it positioned at the rear knife face 1 of knife bar front end, knife top 2, side face 3 and rake face 4 by forming.The knife bar is sword
The carrier in portion, with identical material and it is integrated into, the cross section of knife bar is rectangle in the present embodiment.Blade in the utility model
Rake face 4 be tilting plane, it be it is a kind of be in low early and high after tilting shape, blade is located at knife bar front end, rake face 4 therein
Set up relative to plane on knife bar and reface angle ψ=3 °~6 °, the spiral bevel gear of the present embodiment cutting is heavy truck auxiliary equipment, tooth
Shape parameter is bigger than normal, adds the cutting force of man-hour requirement also relatively large, therefore angle ψ=6 ° are refaced in selection.The utility model is in order to improve sword
Portion's oxidation-resistance property and raising abrasive resistance, in the external coating in each face of the blade of cutter, cated place such as accompanying drawing 1
Shown in middle dash area.The coating of the present embodiment application is AlCrN, and the coating can resist 700 DEG C of high-temperature oxydations, thus can protect knife
The blade of tool does not occur to be excessively lost in working angles.In the case where setting up the duplicate protection for refacing angle ψ and external coating, cutter makes
Blade wear extent is few during, as long as making a small amount of grinding at rake face 4 and knife top 2, can recover the sharp cutting energy of blade
Power.Few grinding both reduces the loss for consuming diamond emery wheel and cutter itself, saves the unproductive time of sharpening, the present embodiment again
So that cutter bulk life time improves nearly 10 times, so as to be advantageously implemented volume increase consumption reduction target.
The utility model is set up on the rake face 4 of blade and refaces angle ψ, the cutting edge inclination of blade is accordingly reduced.This structure
Although improvement can strengthen knife top 2, the Sharpness of blade have lost.In order to solve this to contradiction, the utility model is by knife bar
Oblique cutting is provided with angle of inclination beta on plane and cutterhead that is, on knife bar into cutterhead between the vertical line of plane.β=8 ° in the present embodiment,
Angle ψ side effect is refaced using β angle parts counteracting rake face 4, cutter is still had appropriate cutting edge inclination in installation site,
Be advantageous to sharp cutting.
Claims (3)
1. a kind of spiral bevel gear teeth portion cutting tool, it is collectively constituted by blade, knife bar and coating；The blade is by positioned at knife bar
The rear knife face of front end（1）, knife top（2）, minor flank（3）And rake face（4）Composition；The knife bar is identical with material used in blade
And be integrated into, the lateral cross section of knife bar is rectangle；It is characterized in that：The rake face（4）In front-low-rear-high shape it is tilting
Knife bar front end, rake face（4）Set up relative to plane on knife bar and reface angle ψ=3 °~6 °；The coating is only defined the blade of shaping
Each surface.
2. spiral bevel gear teeth portion cutting tool according to claim 1, it is characterised in that：The coating is AlCrN.
3. the spiral bevel gear teeth portion cutting tool mounting structure described in supporting claim 1, it forms positioning by cutter and cutterhead
Mounting structure；It is characterized in that：The knife bar is assigned into cutterhead in tilting shape, on knife bar plane with cutterhead plane it is vertical
Angle of inclination beta=6 °~11 ° are provided between line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720229237.6U CN206622720U (en) | 2017-03-10 | 2017-03-10 | Spiral bevel gear teeth portion cutting tool and its mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720229237.6U CN206622720U (en) | 2017-03-10 | 2017-03-10 | Spiral bevel gear teeth portion cutting tool and its mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206622720U true CN206622720U (en) | 2017-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720229237.6U Active CN206622720U (en) | 2017-03-10 | 2017-03-10 | Spiral bevel gear teeth portion cutting tool and its mounting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106925846A (en) * | 2017-03-10 | 2017-07-07 | 江苏飞船股份有限公司 | Spiral bevel gear teeth portion cutting tool and its mounting structure |
-
2017
- 2017-03-10 CN CN201720229237.6U patent/CN206622720U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106925846A (en) * | 2017-03-10 | 2017-07-07 | 江苏飞船股份有限公司 | Spiral bevel gear teeth portion cutting tool and its mounting structure |
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