CN203863155U - Indexing worm supporting structure of gear bobbing machine - Google Patents
Indexing worm supporting structure of gear bobbing machine Download PDFInfo
- Publication number
- CN203863155U CN203863155U CN201420316392.8U CN201420316392U CN203863155U CN 203863155 U CN203863155 U CN 203863155U CN 201420316392 U CN201420316392 U CN 201420316392U CN 203863155 U CN203863155 U CN 203863155U
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- Prior art keywords
- indexing worm
- indexing
- worm
- bearing
- supporting structure
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- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses an indexing worm supporting structure of a gear bobbing machine, and belongs to the technical field of gear machining tools. The indexing worm supporting structure comprises a worktable shell and an indexing worm bracket. The indexing worm bracket is arranged at the bottom of the worktable shell, and an adjusting mechanism for adjusting the center distance between indexing worms is arranged between the indexing worm bracket and the worktable shell. The indexing worm supporting structure is characterized in that a high-precision bearing structure which is used for supporting indexing worm shafts is arranged at one end of the indexing worm bracket, and a bearing supporting structure for preventing the indexing worm shafts from axially moving is arranged at the other end of the indexing worm bracket. The indexing worm supporting structure has the advantages that the radial and axial loading capacity of the indexing worms can be improved by the high-precision bearing structure and the bearing supporting structure for preventing the indexing worm shafts from axially moving; the center distance between the indexing worms can be corrected by the aid of the adjusting mechanism, and accordingly the power transmission accuracy and the gear bobbing precision can be improved.
Description
Technical field
The utility model relates to a kind of gear cutting machine parts, particularly a kind of gear hobbing machine indexing worm supporting structure.
Background technology
Axial and the radial location precision of gear hobbing machine indexing worm is directly connected to the machining accuracy of gear-hobbing machine, and the circular runout of indexing worm and axial runout error are the smaller the better.Two kinds of structures of the main employing of existing gear hobbing machine indexing worm supporting, one is directly gear hobbing machine indexing worm supporting to be arranged on workbench housing, ensured the centre-to-centre spacing of indexing worm and dividing worm wheel, but also there is bad installation in this scheme, the problem that processing cost is higher; Another kind of structure is first gear hobbing machine indexing worm supporting to be arranged on indexing worm bracket, and then bracket entirety is fixed on and is done on platform housing, adopt the centre-to-centre spacing of its indexing worm of this structure and dividing worm wheel to have certain uncertainty, and in Gear Processing process, easily occur because of stressed difference changing, product quality is had to larger impact.
Simultaneously, above scheme has all adopted deep groove ball bearing to support, because the axial force being subject in indexing worm and dividing worm wheel engaged transmission process is larger, common ball bearing is often difficult to stop moving axially of indexing worm, affect the transmission accuracy between indexing worm and dividing worm wheel, thereby affected the quality of gear product.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of gear hobbing machine indexing worm supporting structure, to solve due to gear hobbing machine indexing worm supporting stand under load scarce capacity and cannot adjust dividing worm wheel and indexing worm centre-to-centre spacing affects the problem of gear hobbing precision.
The supporting of the utility model gear hobbing machine indexing worm, comprise workbench housing and be arranged on its bottom indexing worm bracket, between described indexing worm bracket and workbench housing, be provided with the guiding mechanism that regulates indexing worm and dividing worm wheel centre-to-centre spacing, it is characterized in that: described indexing worm bracket one end is provided with the high-precision bearing structure for supporting indexing worm axle, and its other end is provided with the bearing support structure of the axial float that prevents indexing worm axle.
Further, described high-precision bearing structure comprises duplex needle bearing and duplex needle bearing seat.
Further, described bearing support structure comprises the bearing block of screw mandrel special bearing and installation screw mandrel special bearing.
Further, described guiding mechanism is the adjustment pad with tapering.
The beneficial effects of the utility model are: the side at indexing worm adopts high-precision bearing structure, opposite side adopts the bearing support structure of the axial float that prevents indexing worm axle, increased on the one hand the contact area of indexing worm axle and two-side supporting, that has improved indexing worm is radially subject to loading capability; On the other hand, also can bear larger axial load; Simultaneously, the adjustment pad arranging on indexing worm bracket can be adjusted the centre-to-centre spacing of indexing worm and dividing worm wheel, can correct because of the distortion of mating part and the centre-to-centre spacing that wearing and tearing change in assembling or process, improve power and transmitted accuracy, and then improved gear hobbing precision, make up and in prior art, can not bear larger axis to load and deficiency that can not adjusting center distance
Brief description of the drawings
Fig. 1 is the enforcement structural representation of the utility model gear hobbing machine indexing worm supporting;
Detailed description of the invention
As shown in the figure, the supporting of the present embodiment gear hobbing machine indexing worm comprises workbench housing 1 and is arranged on the indexing worm bracket 2 of its bottom, between described indexing worm bracket 2 and workbench housing 1, be provided with the guiding mechanism that regulates indexing worm 3 and dividing worm wheel 4 centre-to-centre spacing, it is characterized in that: described indexing worm bracket one end is provided with the high-precision bearing structure 5 for supporting indexing worm axle, and its other end is provided with the bearing support structure 6 of the axial float that prevents indexing worm axle.
The side that the gear hobbing machine indexing worm of the present embodiment is bearing in indexing worm 3 adopts high-precision bearing structure 5, opposite side adopts the bearing support structure 6 of the axial float that prevents indexing worm axle, increase on the one hand the contact area of indexing worm 3 and two side bearings, that has improved indexing worm 3 is radially subject to loading capability, on the other hand, also can bear larger axial load, simultaneously, the guiding mechanism arranging on indexing worm bracket 2 can be adjusted the centre-to-centre spacing of indexing worm 3 and dividing worm wheel 4, can correct the centre-to-centre spacing that the part distortion that causes due to assembling or foozle cause changes, also in can modifying factor process, indexing worm 3 and dividing worm wheel 4 mating parts be subject to distortion under long-time cutting force effect and wearing and tearing and the centre-to-centre spacing that changes, have improved power to transmit accuracy, and then have improved gear hobbing precision.
As the improvement to the present embodiment, described high-precision bearing structure comprises duplex needle bearing 7 and duplex needle bearing seat 8.The high accuracy needle bearing of employing biserial can further increase the contact area with indexing worm, improves bearing capacity, reduces radial-play error.
As the improvement to the present embodiment, described bearing support structure comprises screw mandrel special bearing 9 and the bearing block 10 of screw mandrel special bearing is installed.The preferential combination that adopts a needle bearing and two cylindrical roller thrust bearings of this screw mandrel special bearing 9, can bear larger axial load and radial load, reduces, because of axial float and radial-play error under large cutting force effect, to improve machining accuracy.
As the improvement to the present embodiment, described guiding mechanism is the adjustment pad 11 with tapering.Because assembly deflections is all undersized variation with processing wearing and tearing, be the Small Taper adapting with it so adjust the tapering of pad, can carry out adjusting more among a small circle, make degree of regulation higher.
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 (4)
1. a gear hobbing machine indexing worm supporting structure, comprise workbench housing and be arranged on its bottom indexing worm bracket, between described indexing worm bracket and workbench housing, be provided with the guiding mechanism that regulates indexing worm and dividing worm wheel centre-to-centre spacing, it is characterized in that: described indexing worm bracket one end is provided with the high-precision bearing structure for supporting indexing worm axle, and its other end is provided with the bearing support structure that prevents indexing worm axial float.
2. gear hobbing machine indexing worm supporting structure according to claim 1, is characterized in that: described high-precision bearing structure comprises duplex needle bearing and duplex needle bearing seat.
3. gear hobbing machine indexing worm supporting structure according to claim 1, is characterized in that: described bearing support structure comprises screw mandrel special bearing and the bearing block of screw mandrel special bearing is installed.
4. gear hobbing machine indexing worm supporting structure according to claim 1, is characterized in that: described guiding mechanism is the adjustment pad with tapering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316392.8U CN203863155U (en) | 2014-06-13 | 2014-06-13 | Indexing worm supporting structure of gear bobbing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316392.8U CN203863155U (en) | 2014-06-13 | 2014-06-13 | Indexing worm supporting structure of gear bobbing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203863155U true CN203863155U (en) | 2014-10-08 |
Family
ID=51644145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420316392.8U Expired - Lifetime CN203863155U (en) | 2014-06-13 | 2014-06-13 | Indexing worm supporting structure of gear bobbing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203863155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171143A (en) * | 2015-10-31 | 2015-12-23 | 重庆机床(集团)有限责任公司 | Static-pressure supporting structure for indexing worm of hobbing machine |
-
2014
- 2014-06-13 CN CN201420316392.8U patent/CN203863155U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171143A (en) * | 2015-10-31 | 2015-12-23 | 重庆机床(集团)有限责任公司 | Static-pressure supporting structure for indexing worm of hobbing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141008 |