CN202028950U - Centering fixture of splined hole hobbed gear - Google Patents
Centering fixture of splined hole hobbed gear Download PDFInfo
- Publication number
- CN202028950U CN202028950U CN2011200656084U CN201120065608U CN202028950U CN 202028950 U CN202028950 U CN 202028950U CN 2011200656084 U CN2011200656084 U CN 2011200656084U CN 201120065608 U CN201120065608 U CN 201120065608U CN 202028950 U CN202028950 U CN 202028950U
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- China
- Prior art keywords
- splined hole
- centering
- positioning
- centering shaft
- pull bar
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Abstract
The utility model discloses a centering fixture of a splined hole hobbed gear, which is characterized in that the centering fixture comprises a connecting disc, a positioning disc, a centering shaft, a centering shaft sleeve, a pull rod and a driving device, wherein, the connecting disc is fixed on a machine tool; the positioning disc is fixed on the connecting disc; the centering shaft is arranged in the center of the positioning disc; the pull rod passes through the axle center of the centering shaft; the lower end of the pull rod is connected with the driving device; a pressure plate is arranged at the upper end of a work piece; the work piece is tightly pressed through using the upper end of the pull rod to tightly press the pressure plate; the centering shaft sleeve is sleeved on the centering shaft; and an excircle of the centering shaft sleeve is matched with a positioning splined hole of the work piece. The centering fixture has a simple structure, is convenient to mount, increases the positioning accuracy of the hobbed gear through multiple positioning of the positioning disc, a pressure block and the centering shaft sleeve, is suitable for processing work pieces with different inner hole structures, has a wide application range and guarantees the processing accuracy of the work pieces.
Description
Technical field
The utility model relates to a kind of centralizer, specifically relates to a kind of centralizer of gear hobbing processing usefulness, belongs to the positioner technical field.
Background technology
Have in precision under the situation of high requirement gear, the precision of hot front gear must reach the requirement that just can meet product more than 7 grades, and in order to guarantee product quality, processing request to gear hobbing is very high, to guarantee the accuracy of gear of gear hobbing manufacturing procedure, particularly gear ring is directly jumped and adjacent accumulation requirement, if the overproof shaving processing that will have influence on postorder of gear hobbing causes the shaving precision to guarantee.And because the structural limitations of product, the gear hobbing centralizer just adopts the mandrel location under the situation that can't adopt internal expansion type, and adopts the problem of mandrel location to be, if the gap that cooperates between axle and the workpiece is too small, will cause workman's dismounting inconvenience; And when excesssive gap, after gear hobbing, because gear beating and can not satisfy technological requirement radially.
Find through the retrieval to prior art: at number of patent application is 200920249483.3, in the patent document of Granted publication CN201586879U, selected the centralizer of ball bushing for use as gear hobbing, cooperate being slidingly matched between traditional workpiece and the axle can be changed into rolling, can realize the zero clearance between the mandrel of workpiece and anchor clamps like this, even 0.005 to 0.01 interference can be arranged, so just, improved the positioning accuracy of gear hobbing, but because lining is a ball-type, so the location endoporus that requires to be cooperated is a unthreaded hole, gear for the splined hole type can't use, and therefore needs a kind of novel gear hobbing anchor clamps head it off.
Summary of the invention
In order to solve deficiency of the prior art, the utility model provides a kind of gear hobbing centralizer that can effectively improve the machining accuracy of gear hobbing.
In order to achieve the above object, the technical scheme that the utility model adopted is:
A kind of splined hole gear hobbing centralizer, it is characterized in that, comprise terminal pad, positioning disk, centration axis, centering axle sleeve, pull bar and drive unit, wherein, terminal pad is fixed on the lathe, positioning disk is fixed on the terminal pad, centration axis is arranged on the center of positioning disk, pull bar runs through its axle center, the pull bar lower end is connected with drive unit, and the workpiece upper end is provided with pressing plate, thereby by pull bar upper end clamping platen workpiece pressing, above-mentioned centering axle sleeve then is set on the centration axis, and its cylindrical cooperates with the location splined hole of workpiece.
Above-mentioned splined hole gear hobbing centralizer, it is characterized in that, described centering axle sleeve is a ball bushing, and evenly is provided with the positioning tooth that cooperatively interacts with above-mentioned splined hole on the periphery of ball bushing, thereby has guaranteed that ball bushing can accurately be positioned on the path of internal splined hole.
Above-mentioned splined hole gear hobbing centralizer is characterized in that described drive unit is a hydraulic jack.
The beneficial effects of the utility model are: the utility model is simple in structure, and is easy for installation, by the multiple location of positioning disk, briquetting and centering axle sleeve, improved the positioning accuracy of gear hobbing, and be fit to have the processing of the workpiece of different inner hole structures, applied widely, the machining accuracy of workpiece is provided.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is the structural scheme of mechanism of ball bushing described in the utility model.
Main Reference numeral implication is among the figure:
1, terminal pad 2, positioning tooth 3, positioning disk 4, centration axis
5, pressing plate 6, pull bar 7, workpiece 8, ball
9, centering axle sleeve.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described:
Splined hole gear hobbing centralizer comprises terminal pad 1, positioning disk 3, centration axis 4, centering axle sleeve 8, pull bar 6 and drive unit, wherein, terminal pad 1 is fixed on the lathe, positioning disk 3 is fixed on the terminal pad 1, centration axis 4 is arranged on the center of positioning disk 3, pull bar 6 runs through its axle center, pull bar 6 bottoms are communicated with drive unit, above-mentioned in the present embodiment drive unit is a hydraulic jack, and also be provided with pressing plate 5 on the circumferential direction on pull bar 6 tops, above-mentioned centering axle sleeve 9 then is set on the centration axis 4, its periphery cooperates with the splined hole of workpiece 7, in the present embodiment, centering axle sleeve 9 is a ball bushing, has a plurality of ball holes on the ball bushing, movable setting-in ball 8 in the ball hole, and evenly be provided with the positioning tooth 2 that cooperatively interacts with above-mentioned splined hole on the periphery of ball bushing, thereby guaranteed that ball bushing can accurately be positioned on the path of internal splined hole.
The installation of the present utility model and the course of work are: at first terminal pad 1 is installed on the lathe, tighten slightly with screw, calibrate end face run-out≤0.003 of positioning disk 3 then with dial gauge, be connected on the terminal pad 1 by screw-driving positioning disk 3 again, the axle sleeve 9 of will feeling relieved is enclosed within on the centration axis 4, positioning tooth on the splined hole alignment centering axle sleeve 9 of workpiece 7 is installed, put briquetting 5 at last well, open the hydraulic jack switch, pulling pull bar 6 descending clamping platens 5, workpiece 7 is clamped, just can begin then workpiece 7 is carried out gear hobbing processing, utilize the utility model can improve the machining accuracy of gear hobbing, make gear ring directly jump deviation less than 0.045, the comprehensive deviation of tooth pitch has satisfied technological requirement less than 0.045.
Top embodiment has discussed basic principle of the present utility model and principal character and advantage of the present utility model; the technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof
Claims (3)
1. splined hole gear hobbing centralizer, it is characterized in that, comprise terminal pad, positioning disk, centration axis, centering axle sleeve, pull bar and drive unit, wherein, terminal pad is fixed on the lathe, positioning disk is fixed on the terminal pad, centration axis is arranged on the center of positioning disk, pull bar runs through its axle center, the pull bar lower end is connected with drive unit, and the workpiece upper end is provided with pressing plate, thereby by pull bar upper end clamping platen workpiece pressing, above-mentioned centering axle sleeve then is set on the centration axis, and its cylindrical cooperates with the location splined hole of workpiece.
2. splined hole gear hobbing centralizer according to claim 1 is characterized in that described centering axle sleeve is a ball bushing, and evenly is provided with the positioning tooth that cooperatively interacts with above-mentioned splined hole on the periphery of ball bushing.
3. splined hole gear hobbing centralizer according to claim 1 is characterized in that described drive unit is a hydraulic jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200656084U CN202028950U (en) | 2011-03-14 | 2011-03-14 | Centering fixture of splined hole hobbed gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200656084U CN202028950U (en) | 2011-03-14 | 2011-03-14 | Centering fixture of splined hole hobbed gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202028950U true CN202028950U (en) | 2011-11-09 |
Family
ID=44891262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200656084U Expired - Fee Related CN202028950U (en) | 2011-03-14 | 2011-03-14 | Centering fixture of splined hole hobbed gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202028950U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126055A (en) * | 2011-03-14 | 2011-07-20 | 江苏上汽汽车同步器厂 | Splined hole hobbing centering fixture |
| CN103600241A (en) * | 2013-10-16 | 2014-02-26 | 格林精密部件(苏州)有限公司 | Positioning tooling of milling surface of input shaft |
| CN104589120A (en) * | 2015-01-16 | 2015-05-06 | 芜湖三联锻造有限公司 | Disk type workpiece self-centering device |
| CN106735602A (en) * | 2016-12-01 | 2017-05-31 | 江西洪都航空工业集团有限责任公司 | A kind of aviation low module internal spline part Gear Shaping frock and processing method |
-
2011
- 2011-03-14 CN CN2011200656084U patent/CN202028950U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126055A (en) * | 2011-03-14 | 2011-07-20 | 江苏上汽汽车同步器厂 | Splined hole hobbing centering fixture |
| CN103600241A (en) * | 2013-10-16 | 2014-02-26 | 格林精密部件(苏州)有限公司 | Positioning tooling of milling surface of input shaft |
| CN104589120A (en) * | 2015-01-16 | 2015-05-06 | 芜湖三联锻造有限公司 | Disk type workpiece self-centering device |
| CN106735602A (en) * | 2016-12-01 | 2017-05-31 | 江西洪都航空工业集团有限责任公司 | A kind of aviation low module internal spline part Gear Shaping frock and processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Huaqiao Development Zone in Kunshan City, Suzhou city of Jiangsu Province on the 215332 Star Road No. 1358 Patentee after: Jiangsu SAIC Motor Transmission Co., Ltd. Address before: Huaqiao Development Zone in Kunshan City, Suzhou city of Jiangsu Province on the 215332 Star Road No. 1358 Patentee before: Jiangsu SAIC Automobile Synchronizer Works |
|
| 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: 20111109 Termination date: 20170314 |