CN105364200A - Tool used for processing gear - Google Patents
Tool used for processing gear Download PDFInfo
- Publication number
- CN105364200A CN105364200A CN201510879448.XA CN201510879448A CN105364200A CN 105364200 A CN105364200 A CN 105364200A CN 201510879448 A CN201510879448 A CN 201510879448A CN 105364200 A CN105364200 A CN 105364200A
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- CN
- China
- Prior art keywords
- expansion sleeve
- elastic expansion
- locking nut
- periphery
- axle journal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a tool used for processing a gear. The tool comprises a mandrel, wherein the left end of the outer circular surface of the mandrel is provided with two parallel planes; the right side of the planes is sequentially provided with a shaft ring, a shaft neck and a shaft head; two end surfaces of the mandrel are provided with a left fixed hole and a right fixed hole along the axis of the mandrel; the outer circular surface of the shaft neck is a tapered surface which is gradually reduced from left to right; the outer circular surface of the shaft neck is provided with wear-resisting layer; a ring-shaped elastic expanding sleeve is connected on the shaft neck in a sleeving mode; the inner wall of the elastic expanding sleeve is a tapered surface which is matched with the outer circular surface of the shaft neck; a plurality of axial expanding-shrinking slots are formed in the side wall of the elastic expanding sleeve; each expanding-shrinking slot is provided with a strip-shaped slot which is crossed with the corresponding expanding-shrinking slot; each strip-shaped slot penetrates through the side wall of the corresponding elastic expanding sleeve; the shaft head is in threaded connection with a locking nut; the maximum diameter of the locking nut is not greater than the outer diameter of the elastic expanding sleeve; and the outer surface of the wear-resisting layer is provided with an oil storage slot. The tool is convenient to operate and capable of accurately positioning, so that tooth forms of gears processed out in different batches are very stable, and therefore, the tool is especially suitable for a gear shaving process of a planetary gear.
Description
Technical field
The present invention relates to field of machining, refer to a kind of frock for machining gears especially.
Background technology
The existing frock for machining gears adopts hard-core axial cylindrical face and axial end location, compresses product end surface, carry out shave processing by packing ring, nut.When machining the next workpiece of rear replacing at every turn, nut, packing ring all must be unloaded down, could workpiece be changed.Use this frock, change the workpiece time long, inconvenient operation.Special in carrying out shaving to planetary gear, use this frock to there is location inaccurate, cause the accuracy of gear not high, there is relatively large deviation because of helical angle or profile of tooth and cannot engage well between each gear in planetary gear.
Summary of the invention
The present invention is directed to above-mentioned prior art Problems existing to make improvements, the technical problem that needs improve is: the existing frock inconvenient operation for machining gears, location is inaccurate, so propose a kind of frock for machining gears, can accurately locate while easy to operate.
Technical scheme of the present invention is achieved in that a kind of frock for machining gears, comprise axle, described axle left end periphery has two parallel planes, the right side of described plane is disposed with the axle collar, axle journal and spindle nose, described axle two end faces have left fixing hole and right fixing hole along its axis, the periphery of described axle journal is the conical surface reduced gradually from left to right, described axle journal periphery is provided with wearing layer, described axle journal place is socketed with cyclic spring expansion set, described elastic expansion sleeve inwall is the conical surface coordinated with described axle journal periphery, described elastic expansion sleeve sidewall is provided with several axial breathing groove, described breathing groove end has the circular hole preventing elastic expansion sleeve from ftractureing, every bar breathing groove place is equipped with the bar-shaped trough crossing with breathing groove, bar-shaped trough runs through the sidewall of elastic expansion sleeve, described spindle nose has been threaded locking nut, the maximum gauge of described locking nut is not more than the external diameter of elastic expansion sleeve, the outer surface of described wearing layer is provided with the oil storage tank be made up of the reticulate pattern line of two sets intersect.
Preferred as one, described breathing groove extends from an end face of elastic expansion sleeve to another end face, and two adjacent breathing grooves extend from different end face.
Preferred as one, the gradient of described elastic expansion sleeve inwall is 1:4, and the described conical surface is greater than 0.85 with the contact area of the periphery of described axle journal and the ratio of cone surface which area.
Preferred as one, described locking nut outer wall is set to step-like, and described locking nut is by the nut head largest diameter of elastic expansion sleeve end, and described locking nut is regular hexagon away from the cross section of elastic expansion sleeve end vertical axis.
Preferred as one, the wearing layer that the periphery of described axle journal is arranged is titanium nitride coating.
After adopting such structure, carrying out gear in Shaving Process, not needing elastic expansion sleeve and locking nut to unload completely, after shaving completes, only locking nut need unscrewed 1 ~ 2 pitch, axle is struck gently with copper rod, just gear can be loaded and unloaded rapidly, easy to operate, shorten the workpiece loading and unloading time.Left fixing hole is utilized to coordinate a steel ball can measure the distance of steel ball to axle collar end face before processing, position and the stroke of shaving cutter is adjusted according to this distance, the tooth-formation of gear that such different batches processes is very stable, is specially adapted to planetary shaving operation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the present invention for the frock of machining gears;
Fig. 2 is the sectional view of expansion set in Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The frock for machining gears as depicted in figs. 1 and 2, comprise axle 1, the left end of described axle 1 periphery has two parallel plane 1b, the right side of described plane 1b is disposed with axle collar 1c, axle journal 1d and spindle nose 1e, described axle 1 two end faces have left fixing hole 1a and right fixing hole 1f along axle 1 axis, the periphery of described axle journal 1d is the conical surface reduced gradually from left to right, described axle journal 1d periphery is provided with wearing layer, the outer surface of described wearing layer is provided with the oil storage tank 4 be made up of the reticulate pattern line of two sets intersect, oil storage tank can prevent lubricating oil to run off, ensure that elastic expansion sleeve 2 can slide smoothly on axle journal 1d, described axle journal 1d place is socketed with cyclic spring expansion set 2, described elastic expansion sleeve 2 inwall is the conical surface 2a coordinated with described axle journal 1d periphery, described elastic expansion sleeve 2 sidewall is provided with several axial breathing groove 2b, described breathing groove 2b end has the circular hole 2c preventing elastic expansion sleeve 2 from ftractureing, every bar breathing groove 2b place is equipped with the bar-shaped trough 2d crossing with breathing groove 2b, bar-shaped trough 2d runs through the sidewall of elastic expansion sleeve 2, elastic expansion sleeve 2 is arranged bar-shaped trough 2d make elastic expansion sleeve 2 swell evenly, ensure that the lateral wall of elastic expansion sleeve 2 can closely cooperate with gear to be processed, described spindle nose 1e has been threaded locking nut 3, the maximum gauge of described locking nut 3 is not more than the external diameter of elastic expansion sleeve 2, tighten or unscrew locking nut 3 and make elastic expansion sleeve 2 swell and reset.
In use, only locking nut 3 is screwed 1 ~ 2 pitch, locking nut 3 is made to screw elastic expansion sleeve 2 right side, in locking nut 3 screwing operations Elastic expansion set 2 swell, thus swelling fixation workpiece, when processing a workpiece, only locking nut 3 is loosened 1 ~ 2 pitch, elastic expansion sleeve 2 is loosened, elastic expansion sleeve 2 elastic reset, thus fast unload workpiece.
In order to promote elastic expansion sleeve 2 elasticity and reseting performance, described breathing groove 2b extends from an end face of elastic expansion sleeve 2 to another end face, and two adjacent breathing groove 2b extend from different end face.
In order to ensure the positioning precision of elastic expansion sleeve 2, the gradient of described elastic expansion sleeve 2 inwall is 1:4, described conical surface 2a is greater than 0.85 with the contact area of the periphery of described axle journal 1d and the ratio of conical surface 2a area, and the coaxiality error assembling rear shaft neck 1d and elastic expansion sleeve 2 can not be greater than 0.02mm.
It is special that in order to ensure elastic expansion sleeve 2 elasticity and reseting performance, the material of elastic expansion sleeve 2 can be 60si2Mn or 20CrMnTi, and through the antiseepage of Overheating Treatment carburizing and quenching spiral shell mosquito, carbon-coating dark 1 ~ 1.4, hardness 58 ~ 63HRC.
Further, described locking nut 3 outer wall is set to step-like, described locking nut 3 is by the nut head 3a largest diameter of elastic expansion sleeve 2 end, described locking nut 3 is regular hexagon away from the cross section of elastic expansion sleeve 2 end vertical axis, and obvious described locking nut 3 also can be arranged to other shape of conveniently tightening and unscrewing locking nut 3 away from elastic expansion sleeve 2 end.
The wearing layer that the periphery of described axle journal 1d is arranged is titanium nitride coating, and titanium nitride coating is very wear-resisting, can effectively prevent axle journal 1d periphery from wearing and tearing, and makes axle 1 Acceptable life long, and effectively preventing affects machining accuracy because of the wearing and tearing of axle journal 1d periphery.
Especially, left fixing hole 1a coordinates a steel ball can measure the distance of steel ball to the end face of axle collar 1c, and adjust position and the stroke of shaving cutter according to this distance, the tooth-formation of gear that such different batches processes is very stable.And two frocks for machining gears can be used to process on a machine tool when planet Gear Processing simultaneously, according to left fixing hole 1a coordinate steel ball to measure steel ball to adjust two positions for the frock of machining gears and shaving cutter position and stroke to the distance of the end face of axle collar 1c, can improve planetary production capacity and machining accuracy like this, make engagement between each gear of planetary gear that processes better.
Obvious the present invention is provided with chamfering in each parts junction, the two ends of such as axle 1, axle journal 1d right-hand member.The present invention is specially adapted to planetary processing.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. the frock for machining gears, comprise axle (1), the left end of described axle (1) periphery has two parallel planes (1b), the right side of described plane (1b) is disposed with the axle collar (1c), axle journal (1d) and spindle nose (1e), it is characterized in that: described axle (1) two end face has left fixing hole (1a) and right fixing hole (1f) along axle (1) axis, the periphery of described axle journal (1d) is the conical surface reduced gradually from left to right, described axle journal (1d) periphery is provided with wearing layer, described axle journal (1d) place is socketed with elastic expansion sleeve (2), described elastic expansion sleeve (2) inwall is the conical surface (2a) coordinated with described axle journal (1d) periphery, described elastic expansion sleeve (2) sidewall is provided with several axial breathing groove (2b), described breathing groove (2b) end has the circular hole (2c) preventing elastic expansion sleeve (2) from ftractureing, breathing groove (2b) place described in every bar is equipped with the bar-shaped trough (2d) crossing with described breathing groove (2b), described bar-shaped trough (2d) runs through the sidewall of described elastic expansion sleeve (2), described spindle nose (1e) has been threaded locking nut (3), the maximum gauge of described locking nut (3) is not more than the external diameter of elastic expansion sleeve (2), the outer surface of described wearing layer is provided with the oil storage tank (4) be made up of the reticulate pattern line of two sets intersect.
2. according to the frock for machining gears according to claim 1, it is characterized in that: described breathing groove (2b) extends from an end face of elastic expansion sleeve (2) to another end face, and adjacent two breathing grooves (2b) extend from different end face.
3. according to the frock for machining gears described in claim 1 or 2, it is characterized in that: the gradient of described elastic expansion sleeve (2) inwall is 1:4, the contact area of periphery and the ratio of the conical surface (2a) area of the described conical surface (2a) and described axle journal (1d) are greater than 0.85.
4. according to the frock for machining gears according to claim 3, it is characterized in that: described locking nut (3) outer wall is set to step-like, nut head (3a) largest diameter that described locking nut (3) is held by elastic expansion sleeve (2), described locking nut (3) is regular hexagon away from the cross section of elastic expansion sleeve (2) end vertical axis.
5. according to the frock for machining gears according to claim 1, it is characterized in that: the wearing layer that the periphery of described axle journal (1d) is arranged is titanium nitride coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510879448.XA CN105364200A (en) | 2015-12-05 | 2015-12-05 | Tool used for processing gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510879448.XA CN105364200A (en) | 2015-12-05 | 2015-12-05 | Tool used for processing gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105364200A true CN105364200A (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510879448.XA Pending CN105364200A (en) | 2015-12-05 | 2015-12-05 | Tool used for processing gear |
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| Country | Link |
|---|---|
| CN (1) | CN105364200A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5363681A (en) * | 1976-11-18 | 1978-06-07 | Toyoda Mach Works Ltd | Collet chuck for works having internally threaded bore |
| CN2213859Y (en) * | 1994-09-07 | 1995-11-29 | 袁志 | Cylinder body with white iron net lines |
| CN202768720U (en) * | 2012-09-06 | 2013-03-06 | 宁波凯瑞汽车零部件有限公司 | Piston structure |
| CN202790039U (en) * | 2012-07-22 | 2013-03-13 | 宁波捷成轴业有限公司 | Gear shaft with guide oil grooves |
| CN203791659U (en) * | 2013-11-18 | 2014-08-27 | 重庆清平机械厂 | Self-adaptive expansion sleeve clamp |
| CN204035713U (en) * | 2014-08-30 | 2014-12-24 | 綦江祥和机械有限公司 | Gear shaving frock |
-
2015
- 2015-12-05 CN CN201510879448.XA patent/CN105364200A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5363681A (en) * | 1976-11-18 | 1978-06-07 | Toyoda Mach Works Ltd | Collet chuck for works having internally threaded bore |
| CN2213859Y (en) * | 1994-09-07 | 1995-11-29 | 袁志 | Cylinder body with white iron net lines |
| CN202790039U (en) * | 2012-07-22 | 2013-03-13 | 宁波捷成轴业有限公司 | Gear shaft with guide oil grooves |
| CN202768720U (en) * | 2012-09-06 | 2013-03-06 | 宁波凯瑞汽车零部件有限公司 | Piston structure |
| CN203791659U (en) * | 2013-11-18 | 2014-08-27 | 重庆清平机械厂 | Self-adaptive expansion sleeve clamp |
| CN204035713U (en) * | 2014-08-30 | 2014-12-24 | 綦江祥和机械有限公司 | Gear shaving frock |
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Application publication date: 20160302 |