CN201645215U - Positioning device for worm hole boring fixture - Google Patents
Positioning device for worm hole boring fixture Download PDFInfo
- Publication number
- CN201645215U CN201645215U CN201020301461XU CN201020301461U CN201645215U CN 201645215 U CN201645215 U CN 201645215U CN 201020301461X U CN201020301461X U CN 201020301461XU CN 201020301461 U CN201020301461 U CN 201020301461U CN 201645215 U CN201645215 U CN 201645215U
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- CN
- China
- Prior art keywords
- pin
- worm
- worm hole
- hole boring
- positioning device
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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.)
- Expired - Lifetime
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Abstract
The utility model discloses a positioning device for a worm hole boring fixture, and aims to provide the positioning device for the worm hole boring fixture, which has the advantages of simple structure and stable product quality. The positioning device includes a bottom plate, a large positioning pin and a small positioning pin arranged on the bottom plate, wherein the large positioning pin is a stepped pin having two sections of cylinders corresponding to inner and outer axle holes of a worm wheel on a box body. The utility model is suitable for positioning during the boring of a worm hole of a reduction gearbox.
Description
Technical field
The utility model relates to a kind of anchor clamps positioner, relates in particular to a kind of reduction box worm hole boring clamp positioner.
Background technology
Usually, reduction box worm hole boring clamp positioner adopts typical plane and two pits location, locating surface is chosen on the residing casing of the worm gear outer shaft hole outer face, locating hole is selected worm gear outer shaft hole and a thread Pilot hole, yet because the casing end face is smaller, casing wall thickness directly over the end face is thiner again, can't establish and compress a little, compress and a little can only be located on outer casing two edges of end face, because alignment pin and worm gear outer shaft hole contact-making surface are very short, turn on one's side easily when therefore compressing, influence the position degree and the perpendicularity of product.
Chinese patent notification number CN201316917Y discloses a kind of fraise jig positioner, is made of base plate, supporting and pressing plate, and described base plate is fixed on the workbench, is provided with locating hole on described base plate, flexibly connects positioning sleeve in described locating hole.This positioner can make the product of same type use same pair of anchor clamps, and frock is fully used, and saves the frock cost, and shortcoming is that positioning accuracy is poor.
The utility model content
The utility model mainly solves perpendicularity and the position degree problem of unstable that prior art exists, and the worm hole boring clamp positioner of a kind of features simple structure, constant product quality is provided.
The technical scheme that its technical problem that solves the utility model adopts is: worm hole boring clamp positioner, comprise base plate, be positioned at big alignment pin and little alignment pin on the base plate, big alignment pin is the ladder pin, the ladder pin be two sections with casing on the corresponding cylinder of the inside and outside axis hole of worm gear.Because big alignment pin is the ladder pin, two cylinders match with the inside and outside axis hole of worm gear respectively, physical constraints 4 frees degree of casing, two are moved, and two rotations become main location, the base plate that contacts with the casing end face only plays position-limiting action, the little alignment pin that matches with thread Pilot hole only plays the anti-rotation effect, so this positioner can not tumble because of compressing, and guarantees perpendicularity and position degree easily; Because two worm gear axis holes are the coaxial apertures after machined, have than higher precision again, ladder pin two cylinders that match with it are coaxial, and machining accuracy guarantees easily, the quality of fit height in pin and hole, and therefore such positioning device structure is simple, the positioning accuracy height.
Further improve, described ladder pin is provided with flat department.Can reduce the clamping difficulty that the pitch-row error is brought, help the discharge of the air in the axis hole (counterbore) in the worm gear simultaneously.
Further improve, described ladder pin two cylinder front ends are provided with chamfering.Can make clamping more convenient.
In sum, the beneficial effects of the utility model are: simple in structure, and convenient mounting and clamping, positioning accuracy height, constant product quality.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the vertical view of the big alignment pin of Fig. 1.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings the technical solution of the utility model is described further:
Embodiment: a kind of worm hole boring clamp positioner, referring to accompanying drawing 1 and accompanying drawing 2, comprise base plate 1, be positioned at big alignment pin 2 and little alignment pin 3 on the base plate 1, big alignment pin 2 is the ladder pin, and ladder pin 2 is provided with cylinder 4, forms with worm gear outer shaft hole on the casing 5 excessively to cooperate, ladder pin 2 is provided with cylinder 6, excessively cooperate with 7 formation of axis hole in the worm gear on the casing, ladder pin 2 is provided with flat department 8, and ladder pin 2 front ends are provided with chamfering 9.
During use, casing worm gear axis hole is aimed at big alignment pin 2, the casing thread Pilot hole is aimed at little alignment pin 3, allows casing end face and base plate 1 develop, and is with pressing plate that casing is fastening, can begin boring worm hole 10.
Claims (3)
1. a worm hole boring clamp positioner comprises base plate, is positioned at big alignment pin and little alignment pin on the base plate, and it is characterized in that: described big alignment pin is the ladder pin, described ladder pin be two sections with casing on the corresponding cylinder of the inside and outside axis hole of worm gear.
2. worm hole boring clamp positioner according to claim 1 is characterized in that: described ladder pin is provided with flat department.
3. worm hole boring clamp positioner according to claim 1 and 2 is characterized in that: described ladder pin two cylinder front ends are provided with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020301461XU CN201645215U (en) | 2010-01-25 | 2010-01-25 | Positioning device for worm hole boring fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020301461XU CN201645215U (en) | 2010-01-25 | 2010-01-25 | Positioning device for worm hole boring fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201645215U true CN201645215U (en) | 2010-11-24 |
Family
ID=43110422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020301461XU Expired - Lifetime CN201645215U (en) | 2010-01-25 | 2010-01-25 | Positioning device for worm hole boring fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201645215U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990385A (en) * | 2012-11-21 | 2013-03-27 | 无锡市航鹄科技有限公司 | Finish-milling box body positioning tool |
| CN110773777A (en) * | 2019-11-29 | 2020-02-11 | 常州机电职业技术学院 | Drill jig for coulter gear gearbox |
-
2010
- 2010-01-25 CN CN201020301461XU patent/CN201645215U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990385A (en) * | 2012-11-21 | 2013-03-27 | 无锡市航鹄科技有限公司 | Finish-milling box body positioning tool |
| CN110773777A (en) * | 2019-11-29 | 2020-02-11 | 常州机电职业技术学院 | Drill jig for coulter gear gearbox |
| CN110773777B (en) * | 2019-11-29 | 2020-07-14 | 常州机电职业技术学院 | Drill jig for coulter gear gearbox |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |