CN203918128U - The little bracket supporting structure of gear-hobbing machine - Google Patents
The little bracket supporting structure of gear-hobbing machine Download PDFInfo
- Publication number
- CN203918128U CN203918128U CN201420316432.9U CN201420316432U CN203918128U CN 203918128 U CN203918128 U CN 203918128U CN 201420316432 U CN201420316432 U CN 201420316432U CN 203918128 U CN203918128 U CN 203918128U
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- China
- Prior art keywords
- little bracket
- gear
- knife bar
- supporting structure
- little
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Abstract
The utility model discloses the little bracket supporting structure of a kind of gear-hobbing machine, the technical field that belongs to gear cutting machine, comprise tool holder casing and little bracket placed on it, on described little bracket, be provided with knife bar cover, between described knife bar cover and little bracket, be provided with clearance adjustment mechanism.The little bracket supporting structure of the utility model gear-hobbing machine regulates the taper fit of tapered sleeve and little bracket to improve the quality of fit of gear hobbing knife bar and bearing by clearance adjustment mechanism, better guarantees product quality; This mechanism need not adjust bearing clearance, can avoid in prior art adjusting the improper problem that affect gear hobbing precision because of bearing clearance, thereby increase work efficiency and gear hobbing precision.
Description
Technical field
The utility model relates to a kind of gear cutting machine parts, particularly the little bracket supporting structure of a kind of gear-hobbing machine.
Background technology
Gear-hobbing machine can produce larger cutting force in hobbing process, gear hobbing knife bar is under the effect of cutting force, produce larger flexural deformation, affect gear hobbing precision, for this reason, designer arranges little bracket supporting at gear hobbing knife bar near electric machine main shaft end, can bear larger cutting force, reduce the deflection of hobcutter, like this guarantee product quality.
The little bracket of existing gear-hobbing machine is generally sliding supported condition structure, the gap of this structure is difficult to adjust, when running up, as too smallly in gap cannot form effective oil lamella, easy tile kilning, affects its service life, as excesssive gap, may be under the effect of cutting force, the centre-to-centre spacing of hobboing cutter and product changes, and affects gear hobbing precision.
Utility model content
In view of this, the purpose of this utility model is to provide the little bracket supporting structure of a kind of gear-hobbing machine, to solve because little bracket supporting and hobboing cutter gap of main reinforcement are difficult for adjusting the problem that affects gear hobbing precision.
The little bracket supporting structure of the utility model gear-hobbing machine, comprises tool holder casing and little bracket placed on it, on described little bracket, is provided with knife bar cover, it is characterized in that: between described knife bar cover and little bracket, be provided with clearance adjustment mechanism.
Further, described clearance adjustment mechanism comprises the tapered sleeve being arranged on little bracket, and described knife bar is set in tapered sleeve, between described tapered sleeve and knife bar cover, is provided with high-precision bearing.
Further, the tapering stub end of described tapered sleeve is provided with flange, is provided with the adjustment pad with little bracket laminating on described flange.
Further, a side of described knife bar cover is provided with for limiting the shaft shoulder of its axial float, and opposite side is provided with limiting retainer ring.
The beneficial effects of the utility model are:
The little bracket supporting structure of the utility model gear-hobbing machine regulates the taper fit of tapered sleeve and little bracket to improve the quality of fit of gear hobbing knife bar and bearing by clearance adjustment mechanism, better guarantees product quality; Owing to need not adjusting bearing clearance, can avoid in prior art adjusting the improper problem that affect gear hobbing precision because of bearing clearance, thereby increase work efficiency and gear hobbing precision.
1, the little bracket supporting structure of the utility model gear-hobbing machine replaces sliding bearing of the prior art by duplex needle bearing, increased the contact area of bearing and hob arbor, improved radially bearing capacity, simultaneously, this structure need not be adjusted bearing clearance, has avoided adjusting because of bearing clearance the problem of undue influence gear hobbing precision;
2, the little bracket supporting structure of the utility model gear-hobbing machine has adopted the bearing block of tapered sleeve structure, when bearing and bearing block have foozle not assemble, or while having wearing and tearing after working long hours, can compensate by adjusting the taper fit of tapered sleeve and little bracket, improve bearing fit precision, thereby can better guarantee product quality.
Accompanying drawing explanation
Fig. 1 is the enforcement structural representation of the little bracket supporting structure of the utility model gear-hobbing machine;
Fig. 2 is the partial sectional view of Fig. 1.
The specific embodiment
As shown in the figure, the little bracket supporting structure of the present embodiment gear-hobbing machine comprises tool holder casing 1 and little bracket 2 placed on it, is provided with knife bar cover 4 on described little bracket 2, it is characterized in that: between described knife bar cover 4 and little bracket 2, be provided with clearance adjustment mechanism.
The present embodiment is by existing tool holder casing 1, first by little bracket 2 and tool holder casing 1 use bolted, again hob rod 3 is packed in knife bar cover 4 and carry out fastening being placed in little bracket, by clearance adjustment mechanism, can regulate little bracket 2 to overlap coordinating between 4 with knife bar, guarantee fit clearance, this structure, owing to need not adjusting bearing clearance, has been avoided adjusting undue influence product quality because of bearing clearance.
As the improvement to the present embodiment, described clearance adjustment mechanism comprises the tapered sleeve 5 being arranged on little bracket 2, and described knife bar cover 4 is arranged in tapered sleeve 5, between described tapered sleeve 5 and knife bar cover 4, is provided with high-precision bearing.Error when in whole assembling process and manufacture process generation, while causing the poor fit between bearing and tapered sleeve 5, can regulate by tapered sleeve 5; When there are wearing and tearing in tapered sleeve after working long hours 5 or 2 holes of little bracket, also can be by regulating tapered sleeve 5 and the tapering between little bracket 2 to compensate, this is easy to operate, and simply efficiency is high, and precision is good.
As the improvement to the present embodiment, described high-precision bearing is two needle bearings that are set up in parallel 6.Two needle bearings arranged side by side 6 can increase the contact area of bearing and hob arbor 3, have improved radially bearing capacity, thereby can better guarantee product quality.
As the improvement to the present embodiment, the tapering stub end of described tapered sleeve 5 is provided with flange, is provided with the adjustment pad 7 with little bracket laminating on described flange.Adopt this structure to bearing clearance, to adjust by adjusting the thickness of pad 7, thereby improve its quality of fit, further guarantee product quality.
As the improvement to the present embodiment, a side of described knife bar cover is provided with for limiting the shaft shoulder of its axial float, and opposite side is provided with limiting retainer ring 8.Use the shaft shoulder and limiting retainer ring to carry out axial location, prevent from that knife bar is enclosed within cutting force effect to move axially and affect product quality with hobcutter, even depart from little bracket and cause serious accident, thereby improved the completeness of this structure.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (5)
1. the little bracket supporting structure of gear-hobbing machine, comprises tool holder casing and little bracket placed on it, on described little bracket, is provided with knife bar cover, it is characterized in that: between described knife bar cover and little bracket, be provided with clearance adjustment mechanism.
2. the little bracket supporting structure of gear-hobbing machine according to claim 1, is characterized in that: described clearance adjustment mechanism comprises the tapered sleeve being arranged on little bracket, and described knife bar is set in tapered sleeve, between described tapered sleeve and knife bar cover, is provided with high-precision bearing.
3. the little bracket supporting structure of gear-hobbing machine according to claim 2, is characterized in that: described high-precision bearing is two needle bearings that are set up in parallel.
4. the little bracket supporting structure of gear-hobbing machine according to claim 2, is characterized in that: the tapering stub end of described tapered sleeve is provided with flange, is provided with the adjustment pad with little bracket laminating on described flange.
5. the little bracket supporting structure of gear-hobbing machine according to claim 1, is characterized in that: a side of described knife bar cover is provided with for limiting the shaft shoulder of its axial float, and opposite side is provided with limiting retainer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316432.9U CN203918128U (en) | 2014-06-13 | 2014-06-13 | The little bracket supporting structure of gear-hobbing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316432.9U CN203918128U (en) | 2014-06-13 | 2014-06-13 | The little bracket supporting structure of gear-hobbing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203918128U true CN203918128U (en) | 2014-11-05 |
Family
ID=51814007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420316432.9U Expired - Fee Related CN203918128U (en) | 2014-06-13 | 2014-06-13 | The little bracket supporting structure of gear-hobbing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203918128U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458307A (en) * | 2016-01-15 | 2016-04-06 | 重庆机床(集团)有限责任公司 | High-rigidity and high-precision hob spindle supporting transmission structure |
-
2014
- 2014-06-13 CN CN201420316432.9U patent/CN203918128U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458307A (en) * | 2016-01-15 | 2016-04-06 | 重庆机床(集团)有限责任公司 | High-rigidity and high-precision hob spindle supporting transmission structure |
| CN105458307B (en) * | 2016-01-15 | 2018-01-30 | 重庆机床(集团)有限责任公司 | A kind of high rigidity, high-precision hobboing cutter main shaft support drive mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20141105 Termination date: 20180613 |