CN201353709Y - Self-centering device used for locating inner holes - Google Patents
Self-centering device used for locating inner holes Download PDFInfo
- Publication number
- CN201353709Y CN201353709Y CNU2009201058254U CN200920105825U CN201353709Y CN 201353709 Y CN201353709 Y CN 201353709Y CN U2009201058254 U CNU2009201058254 U CN U2009201058254U CN 200920105825 U CN200920105825 U CN 200920105825U CN 201353709 Y CN201353709 Y CN 201353709Y
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- self
- locating
- centering device
- alignment pin
- axial
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Abstract
The utility model relates to a self-centering device used for locating inner holes, which comprises a locating shell, a plurality of radial locating pins and an axial pin driven by and connected with a hydraulic driving mechanism; the locating shell is provided with a plurality of locating pin holes respectively in clearance fit with all locating pins; the locating pin holes are uniformly distributed and the inner ends thereof are arranged in the locating shell; the axial pins are arranged on the axis position in the locating shell and are movably connected with the locating shell along the axial direction; the upper parts of the locating pins are of frustum shape; and usually the number of the locating pins can be three. The self-centering device used for locating inner holes has simple structure and convenient use, can more accurately locate blank holes and the like, is beneficial to error equalizing, and leads the chipping allowance of next working procedure to the fine processing of the blank holes to be uniform to prevent the generation of waste products.
Description
Technical field
The utility model relates to a kind of self-centering device that is used for endoporus location, belongs to frock clamp, is mainly used in the accurate location under blank hole in the machining process and other similar applications.
Background technology
In Mechanical Manufacturing Enterprises is produced, machining, check, welding, heat treatment and assembling etc. are cold, heat processing technique, all using a large amount of anchor clamps, in order to processing object to be installed, for guaranteeing requirement on machining accuracy, must make relative lathe of part to be processed and cutter occupy correct Working position, promptly accurately locate, therefore need the locating hole on alignment pin and the part that very high dimensional accuracy will be arranged, and the surface size precision that present parts batch is cast out is very low, when locating with the low locating hole of this precision, the gap is very big, make the location inaccurate, cause mismachining tolerance to strengthen, even waste product occurs.
Summary of the invention
In order to solve the accurate orientation problem of blank hole under the prior art, the utility model provides a kind of self-centering device that improves the blank hole positioning accuracy, and this device can carry out comparatively accurate localization to blank hole.
The technical solution of the utility model is: a kind of self-centering device that is used for the endoporus location, comprise that positioning housing, a plurality of alignment pin radially drive the axial pin that is connected with one with hydraulic drive mechanism, described positioning housing is provided with respectively a plurality of dowel holes with described each alignment pin matched in clearance, described each dowel hole evenly distributes, the inner end of described alignment pin is positioned at described positioning housing, described axial pin is positioned on the axial location of described positioning housing, axially flexibly connect with described positioning housing, its top is frustum.
During use, positioning housing is inserted the blank hole that needs the location, driving described axial pin by hydraulic drive mechanism moves up, the conical surface on axial pin top is with each alignment pin inner end contact, promote each alignment pin edge radially outward moving of place separately in the process of on axial pin is continuous, moving, because the axial pin conical surface is identical to the effect of each alignment pin, each alignment pin also adopts identical size and structure, and on circumference, evenly distribute, therefore the outwards mobile distance of each alignment pin also is identical, therefore positioning housing equates with gap between the circle in the blank hole on all directions, the axis of blank hole and the axis of positioning housing are overlapped, have realized accurate location and self-centering purpose.This apparatus structure is simple, and is easy to use, helps the homogenizing error, makes next procedure even to the accurately machined chipping allowance of blank hole, helps preventing to produce waste product.
Description of drawings
Fig. 1 is a cross-sectional view of the present utility model.
The specific embodiment
Referring to Fig. 1, the utility model provides a kind of self-centering device that is used for the endoporus location, comprise that positioning housing 1, a plurality of alignment pin 3 radially drive the axial pin 4 that is connected with one with hydraulic drive mechanism, described positioning housing is provided with respectively a plurality of dowel holes with described each alignment pin matched in clearance, described each dowel hole evenly distributes, the inner end of described alignment pin is positioned at described positioning housing, described axial pin is positioned on the axial location of described positioning housing, axially flexibly connect with described positioning housing, its top is frustum.
Usually, the quantity of described alignment pin is 3, and can guarantee thus to locate stable also helps simplified structure.
Described alignment pin can adopt isometrical or waney cylindrical.Described waney columniform inner end diameter is greater than the outer end diameter, the stability when helping alignment pin like this and moving, helps the interaction of the coaxial pin of alignment pin, also helps improving positioning accuracy.Accordingly, the alignment pin of described housing should adopt the waney circular hole supporting with described alignment pin.
The sphere shape of the preferred projection of the outer end end face of described alignment pin helps improving locating accuracy like this.
The inner end end face of described alignment pin can be inclined-plane or the oblique cambered surface (referring to that, bus curved with the intersection of horizontal plane is the curved surface of oblique line) that matches with the conical surface of described axial pin, also can adopt the sphere shape of projection, help axial pin like this with the interaction between the alignment pin.
Described alignment pin can be provided with back-moving spring, and described back-moving spring can be the helical form compression spring 2 that is enclosed within the alignment pin outside.When described alignment pin adopts waney when cylindrical, described compression spring can be enclosed within the outside of alignment pin small diameter portion, its outer end contacts with described positioning housing or is fixedly connected, the inner end contacts with the end face at described alignment pin reducing place or is fixedly connected, thus can be with the alignment pin pushed home that outwards moves.
The bottom of described axial pin can be cylindrical, can be fixedly connected with main casing 6 below the described positioning housing, the top of described main casing can be provided with the axial hole that cooperates with described axial pin underclearance, realizes the axial flexible connection between described axial pin and the described positioning housing thus.
The bottom of described main casing can be provided with the inner chamber of the oil cylinder 7 that is used to hold described hydraulic drive mechanism, this inner chamber is communicated with the axial hole on described main casing top, described oil cylinder is provided with upwardly extending pull bar, driving described pull bar by hydraulic way moves up and down, the top of described pull bar can be provided with a disk 5, described axial pin bottom is provided with a lateral slot, the lower wall of described survey groove is provided with the radial indentation of a width less than described disk diameter, described radial indentation is passed at the top of described pull bar, described disk is positioned at described lateral slot, realized that thus described hydraulic drive mechanism is connected with the driving of described axial pin, and made things convenient for this two-part assembling.
Can be connected with base 8 below the described main casing, described base is provided with the oil duct that is used to connect described oil cylinder.
Being connected all between described positioning housing and the described main casing, between described main casing and the described base can be adopted prior art, and for example bolt connects, straight pin connects, flange connects or the like.
Relate in this specification the orientation " on ", D score only is for the facility on explaining, and do not constitute the qualification to this device each several part true bearing, this above-below direction is consistent with the above-below direction that accompanying drawing shows.
Claims (10)
1. one kind is used for the self-centering device that endoporus is located, it is characterized in that comprising that positioning housing, a plurality of alignment pin radially drive the axial pin that is connected with one with hydraulic drive mechanism, described positioning housing is provided with respectively a plurality of dowel holes with described each alignment pin matched in clearance, described each dowel hole evenly distributes, the inner end of described alignment pin is positioned at described positioning housing, described axial pin is positioned on the axial location of described positioning housing, axially flexibly connect with described positioning housing, its top is frustum.
2. the self-centering device that is used for the endoporus location as claimed in claim 1, the quantity that it is characterized in that described alignment pin is 3.
3. the self-centering device that is used for the endoporus location as claimed in claim 1, it is isometrical or waney cylindrical to it is characterized in that described alignment pin adopts, and described waney columniform inner end diameter is greater than the outer end diameter.
4. the self-centering device that is used for the endoporus location as claimed in claim 1 is characterized in that the sphere shape of the outer end end face of described alignment pin for projection.
5. the self-centering device that is used for the endoporus location as claimed in claim 1, the inner end end face that it is characterized in that described alignment pin are inclined-plane or the oblique cambered surfaces that matches with the conical surface of described axial pin, perhaps adopt the sphere shape of projection.
6. the self-centering device that is used for the endoporus location as claimed in claim 1 is characterized in that described alignment pin is provided with back-moving spring.
7. the self-centering device that is used for the endoporus location as claimed in claim 6 is characterized in that described back-moving spring is the helical form compression spring that is enclosed within the alignment pin outside.
8. as claim 1,2,3,4,5, the 6 or 7 described self-centering devices that are used for the endoporus location, the bottom that it is characterized in that described axial pin is cylindrical, be fixedly connected with main casing below the described positioning housing, the top of described main casing is provided with the axial hole that cooperates with described axial pin underclearance.
9. the self-centering device that is used for the endoporus location as claimed in claim 8, the bottom that it is characterized in that described main casing is provided with the inner chamber of the oil cylinder that is used to hold described hydraulic drive mechanism, this inner chamber is communicated with the axial hole on described main casing top, described oil cylinder is provided with upwardly extending pull bar, the top of described pull bar can be provided with a disk, described axial pin bottom is provided with a lateral slot, the lower wall of described survey groove is provided with the radial indentation of a width less than described disk diameter, described radial indentation is passed at the top of described pull bar, and described disk is positioned at described lateral slot.
10. the self-centering device that is used for the endoporus location as claimed in claim 9 is characterized in that being connected with base below the described main casing, and described base is provided with the oil duct that is used to connect described oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201058254U CN201353709Y (en) | 2009-02-19 | 2009-02-19 | Self-centering device used for locating inner holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201058254U CN201353709Y (en) | 2009-02-19 | 2009-02-19 | Self-centering device used for locating inner holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201353709Y true CN201353709Y (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201058254U Expired - Fee Related CN201353709Y (en) | 2009-02-19 | 2009-02-19 | Self-centering device used for locating inner holes |
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| CN (1) | CN201353709Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837205A (en) * | 2012-09-26 | 2012-12-26 | 保定标正机床有限责任公司 | Hydraulic self-centering inner cavity tensioning mechanism |
| CN103962656A (en) * | 2014-04-23 | 2014-08-06 | 佛山市星光传动机械有限公司 | Non-backlash centering automatic compensation positioning device and method |
| CN105583642A (en) * | 2014-10-23 | 2016-05-18 | 富鼎电子科技(嘉善)有限公司 | Positioning device |
| CN105855943A (en) * | 2016-05-12 | 2016-08-17 | 浙江同济科技职业学院 | Internal chip removal type telescopic gapless positioning device |
| CN105855868A (en) * | 2016-06-27 | 2016-08-17 | 全彬强 | Bushing centering device |
| CN105855963A (en) * | 2016-06-25 | 2016-08-17 | 王燕飞 | Centering and clamping device |
| CN106475831A (en) * | 2016-12-10 | 2017-03-08 | 保定向阳航空精密机械有限公司 | Minor diameter blank hole Self-centering device |
| CN107764227A (en) * | 2017-12-20 | 2018-03-06 | 晋江市安海联诚机械有限公司 | Self-centering cubing for inner hole part |
| CN109605104A (en) * | 2019-01-16 | 2019-04-12 | 广西玉柴机器股份有限公司 | The positioning device in hole |
| CN112959238A (en) * | 2021-02-02 | 2021-06-15 | 合肥正特机械有限公司 | Linear propulsion type workpiece clamping device with inner tapered grooves |
| CN113587841A (en) * | 2021-08-11 | 2021-11-02 | 东北大学 | Quick centering type blast hole measuring device |
-
2009
- 2009-02-19 CN CNU2009201058254U patent/CN201353709Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837205A (en) * | 2012-09-26 | 2012-12-26 | 保定标正机床有限责任公司 | Hydraulic self-centering inner cavity tensioning mechanism |
| CN102837205B (en) * | 2012-09-26 | 2016-03-16 | 保定标正机床有限责任公司 | Hydraulic self-centering inner chamber tension mechanism |
| CN103962656A (en) * | 2014-04-23 | 2014-08-06 | 佛山市星光传动机械有限公司 | Non-backlash centering automatic compensation positioning device and method |
| CN105583642A (en) * | 2014-10-23 | 2016-05-18 | 富鼎电子科技(嘉善)有限公司 | Positioning device |
| CN105855943A (en) * | 2016-05-12 | 2016-08-17 | 浙江同济科技职业学院 | Internal chip removal type telescopic gapless positioning device |
| CN105855963A (en) * | 2016-06-25 | 2016-08-17 | 王燕飞 | Centering and clamping device |
| CN105855868A (en) * | 2016-06-27 | 2016-08-17 | 全彬强 | Bushing centering device |
| CN106475831A (en) * | 2016-12-10 | 2017-03-08 | 保定向阳航空精密机械有限公司 | Minor diameter blank hole Self-centering device |
| CN106475831B (en) * | 2016-12-10 | 2019-11-01 | 保定向阳航空精密机械有限公司 | Minor diameter blank hole Self-centering device |
| CN107764227A (en) * | 2017-12-20 | 2018-03-06 | 晋江市安海联诚机械有限公司 | Self-centering cubing for inner hole part |
| CN107764227B (en) * | 2017-12-20 | 2023-12-15 | 晋江市安海联诚机械有限公司 | Self-centering gauge for inner hole part |
| CN109605104A (en) * | 2019-01-16 | 2019-04-12 | 广西玉柴机器股份有限公司 | The positioning device in hole |
| CN112959238A (en) * | 2021-02-02 | 2021-06-15 | 合肥正特机械有限公司 | Linear propulsion type workpiece clamping device with inner tapered grooves |
| CN113587841A (en) * | 2021-08-11 | 2021-11-02 | 东北大学 | Quick centering type blast hole measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20130219 |