CN203779144U - Cam type self-centering clamp for thin-walled sleeve - Google Patents
Cam type self-centering clamp for thin-walled sleeve Download PDFInfo
- Publication number
- CN203779144U CN203779144U CN201420079234.5U CN201420079234U CN203779144U CN 203779144 U CN203779144 U CN 203779144U CN 201420079234 U CN201420079234 U CN 201420079234U CN 203779144 U CN203779144 U CN 203779144U
- Authority
- CN
- China
- Prior art keywords
- cam
- axle
- positioning
- camshaft
- thin
- Prior art date
- 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 - Fee Related
Links
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
The utility model relates to a cam type self-centering clamp for a thin-walled sleeve. The cam type self-centering clamp for the thin-walled sleeve comprises a mandrel, a cam shaft and an end cover; a positioning step is arranged at one end of a positioning pillar of the mandrel; the outer circle of the mandrel is a positioning pillar surface; a step inner hole is formed in the positioning pillar surface of the mandrel ; at least two groups of radial through holes are formed in the positioning pillar of the mandrel along the axial direction; three or four radial through holes in each group of radial through holes are uniformly distributed in the same cross section of the positioning pillar; positioning clamping pillars are movably matched and connected in the radial through holes; the cam shaft is movably matched and connected in the step inner hole of the mandrel; the front end of the cam shaft is in clearance fit connection with a positioning guide hole in the front end of the step inner hole; the rear end of the cam shaft is movably matched and connected with an inner hole of the end cover fixedly connected at the rear end of the positioning pillar; outer cam pillars corresponding to all groups of radial through holes are arranged in the middle of the cam shaft; each outer cam pillar is formed by uniformly distributing three or four cams along the peripheral direction; the pillar surface of each cam is in contact connection with the bottom end of the corresponding positioning clamping pillar.
Description
Technical field
The utility model relates to a kind of thin-walled parts centralizer, particularly a kind of self-centering fixture of thin-walled parts.
Background technology
In machining, some workpiece are positioned and are clamped by its endoporus, and existing fixture or complicated structure, be exactly unload cumbersome, and order scarcely can realize self-centering, the requirement that often can not satisfy condition, causes machining accuracy poor.Therefore, Chinese invention patent application number: 201110286659.4, a kind of self-centering fixture is disclosed, axle is the cone of hollow, and the external diameter of nearly ring flange end is greater than the external diameter of ring flange end far away, the ring flange end far away of axle has one section of external screw thread, this section of external screw thread place is equipped with adjusting nut, axle is circumferentially arranged with a slidably baffle ring outward, axle is provided with a pair of chute along distributing in axle, the axle center of axle is hung with a pull bar, one end of pull bar and baffle ring fix by a pin, pin is through in a pair of chute, and can slide along it, the other end of pull bar is fixed with a catch, the inwall of expansion set is the conicoid matching with the outer wall of axle, outer wall is column face, the nearly ring flange end of expansion set has the locating ring for axial location workpiece of circumferential protrusion, on expansion set, axially offer multiple expansion joints of being convenient to expansion and shrinking, expansion set is set between baffle ring and adjusting nut, when adjusting nut is during to direction turn near described ring flange, the direction that expansion set increases to the external diameter of axle moves and external diameter is expanded, thereby offset with the inwall of workpiece, when adjusting nut is during to direction turn away from ring flange, adjusting nut drives described catch by pull bar and baffle ring, and expansion set is moved to the direction of the reduced diameter of described axle, the reduced diameter of expansion set and being separated with the inwall of workpiece.But this fixture, in the process of clamping thin-walled parts, easily causes thin-walled parts distortion.Particularly the distortion of thin-walled elongated workpieces is larger.
Summary of the invention
The utility model is the technical problem that clamps machining deformation that will solve thin-walled elongated workpieces, and a kind of cam-type self-centering fixture for thin walled cylinder body is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of cam-type self-centering fixture for thin walled cylinder body, comprise axle, camshaft, end cap, locating dowel one end of axle is provided with positioning step, axle cylindrical is location cylinder, in the location cylinder of axle, be provided with an inner bore of step, in the locating dowel of axle, have vertically at least two group radial direction through hole, every group of radial direction through hole is evenly equipped with three or four radial direction through hole on the same cross section of locating dowel, the activity location clamping column that is connected in radial direction through hole, the activity camshaft that is connected in the inner bore of step of axle, camshaft front end is connected with the front end positioning guide hole matched in clearance of inner bore of step, camshaft rear end is connected with the end cap endoporus activity being fixedly connected on locating dowel rear end, camshaft middle part is provided with and every group of external cam post that radial direction through hole is corresponding, each external cam post is by three or circumferentially uniform forming of four-cam edge, the cylinder of each cam is connected with the bottom contact of location clamping column.
The locating dowel of axle is connected with thin-walled parts endoporus matched in clearance.End face clamp nut is threaded on end cap cylindrical.Camshaft rear end is provided with hand rotation bar.
The beneficial effects of the utility model are: simple in structure, workpiece easy to loading and unloading, and can realize self-centering, particularly use after the clamping column of location, in the process of clamping thin-walled elongated workpieces, thin-walled elongated workpieces deflection is little, and positioning precision is high, can ensure axiality and the perpendicularity of the thin-walled elongated workpieces after processing, and be convenient to the handling of thin-walled elongated workpieces by hand rotation bar.
Brief description of the drawings
Fig. 1 is structure cutaway view of the present utility model;
Fig. 2 is the cutaway view along A-A in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
As Fig. 1, shown in 2, a kind of cam-type self-centering fixture for thin walled cylinder body, comprises axle 1, camshaft 2, location clamping column 3, end cap 4, end face clamp nut 5, hand rotation bar 6.
Locating dowel one end of axle 1 is provided with positioning step, axle 1 cylindrical is location cylinder, in the location cylinder of axle 1, be provided with an inner bore of step, in the locating dowel of axle 1, have vertically at least two group radial direction through hole, every group of radial direction through hole is evenly equipped with three or four radial direction through hole on the same cross section of locating dowel, the activity location clamping column that is connected in radial direction through hole, the activity camshaft 2 that is connected in the inner bore of step of axle 1, camshaft 2 front ends are connected with the front end positioning guide hole matched in clearance of inner bore of step, camshaft 2 rear ends are connected with the end cap 4 endoporus activities that are fixedly connected on locating dowel rear end, camshaft 2 middle parts are provided with and every group of external cam post that radial direction through hole is corresponding, each external cam post is by three or circumferentially uniform forming of four-cam edge, the cylinder of each cam is connected with the bottom contact of location clamping column 3.
The locating dowel of axle 1 is connected with thin-walled parts 7 endoporus matched in clearance.End face clamp nut 5 is threaded on end cap 4 cylindricals.Camshaft 2 rear ends are provided with hand rotation bar 6.
When camshaft 2 rotates along clockwise direction under the drive of hand rotation bar 6, location clamping column 3 outward directions on camshaft 2 move, and its head contacts and pushes against with the inwall of thin-walled parts 7.
When camshaft 2 rotates in the counterclockwise direction under the drive of hand rotation bar 6, the location clamping column 3 on camshaft 2 moves inward with the inwall of thin-walled parts 7 and is separated.
Claims (4)
1. the cam-type self-centering fixture for thin walled cylinder body, comprise axle (1), camshaft (2), end cap (4), it is characterized in that: locating dowel one end of described axle (1) is provided with positioning step, axle (1) cylindrical is location cylinder, in the location cylinder of axle (1), be provided with an inner bore of step, in the locating dowel of axle (1), have vertically at least two group radial direction through hole, every group of radial direction through hole is evenly equipped with three or four radial direction through hole on the same cross section of locating dowel, in radial direction through hole, activity is connected and locates clamping column (3), the activity camshaft (2) that is connected in the inner bore of step of axle (1), camshaft (2) front end is connected with the front end positioning guide hole matched in clearance of inner bore of step, camshaft (2) rear end is connected with end cap (4) the endoporus activity being fixedly connected on locating dowel rear end, camshaft (2) middle part is provided with and every group of external cam post that radial direction through hole is corresponding, each external cam post is by three or circumferentially uniform forming of four-cam edge, the cylinder of each cam is connected with the bottom contact of location clamping column (3).
2. the cam-type self-centering fixture for thin walled cylinder body according to claim 1, is characterized in that: the locating dowel of described axle (1) is connected with thin-walled parts (7) endoporus matched in clearance.
3. the cam-type self-centering fixture for thin walled cylinder body according to claim 1, is characterized in that: end face clamp nut (5) is threaded on described end cap (4) cylindrical.
4. the cam-type self-centering fixture for thin walled cylinder body according to claim 1, is characterized in that: described camshaft (2) rear end is provided with hand rotation bar (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420079234.5U CN203779144U (en) | 2014-02-23 | 2014-02-23 | Cam type self-centering clamp for thin-walled sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420079234.5U CN203779144U (en) | 2014-02-23 | 2014-02-23 | Cam type self-centering clamp for thin-walled sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203779144U true CN203779144U (en) | 2014-08-20 |
Family
ID=51315372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420079234.5U Expired - Fee Related CN203779144U (en) | 2014-02-23 | 2014-02-23 | Cam type self-centering clamp for thin-walled sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203779144U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924240A (en) * | 2015-06-25 | 2015-09-23 | 温州大学 | Stroke-fixed cam supporting device capable of monitoring clamping force and method thereof |
| CN105300216A (en) * | 2015-11-19 | 2016-02-03 | 中国南方航空工业(集团)有限公司 | Blade-type face measuring device |
| CN106944945A (en) * | 2017-02-07 | 2017-07-14 | 刘建新 | A kind of fixture for machine-building |
| CN107598607A (en) * | 2017-10-11 | 2018-01-19 | 安徽江淮汽车集团股份有限公司 | Tubulose parts punching tooling |
| CN109093510A (en) * | 2018-08-15 | 2018-12-28 | 芜湖源码自动化设备有限公司 | One kind being convenient for the fixed frock clamp of round tube |
| CN113458917A (en) * | 2021-09-06 | 2021-10-01 | 成都志力科技发展有限责任公司 | Accurate guidance steering wheel shell anchor clamps of polishing |
-
2014
- 2014-02-23 CN CN201420079234.5U patent/CN203779144U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924240A (en) * | 2015-06-25 | 2015-09-23 | 温州大学 | Stroke-fixed cam supporting device capable of monitoring clamping force and method thereof |
| CN104924240B (en) * | 2015-06-25 | 2016-07-13 | 温州大学 | Clamping force can be monitored and determine stroke cam support devices and methods therefor |
| CN105300216A (en) * | 2015-11-19 | 2016-02-03 | 中国南方航空工业(集团)有限公司 | Blade-type face measuring device |
| CN105300216B (en) * | 2015-11-19 | 2018-04-20 | 中国南方航空工业(集团)有限公司 | Blade profile measuring device |
| CN106944945A (en) * | 2017-02-07 | 2017-07-14 | 刘建新 | A kind of fixture for machine-building |
| CN107598607A (en) * | 2017-10-11 | 2018-01-19 | 安徽江淮汽车集团股份有限公司 | Tubulose parts punching tooling |
| CN107598607B (en) * | 2017-10-11 | 2019-05-21 | 安徽江淮汽车集团股份有限公司 | Tubulose components punching tooling |
| CN109093510A (en) * | 2018-08-15 | 2018-12-28 | 芜湖源码自动化设备有限公司 | One kind being convenient for the fixed frock clamp of round tube |
| CN113458917A (en) * | 2021-09-06 | 2021-10-01 | 成都志力科技发展有限责任公司 | Accurate guidance steering wheel shell anchor clamps of polishing |
| CN113458917B (en) * | 2021-09-06 | 2021-11-16 | 成都志力科技发展有限责任公司 | Accurate guidance steering wheel shell anchor clamps of polishing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203779144U (en) | Cam type self-centering clamp for thin-walled sleeve | |
| CN203779182U (en) | Centering clamp for thin-walled sleeve | |
| CN103753323B (en) | Automatic self-centering fixture | |
| CN104858693A (en) | Cam type self-centering clamp | |
| CN203778799U (en) | Manual self-centering clamp for thin-walled sleeve | |
| CN104858463A (en) | Manual self-centering clamp for thin-walled part | |
| CN202804227U (en) | Elastic mandrel positioning fixture of turning thin-walled part | |
| CN203779181U (en) | Automatic self-centering clamp for thin-walled sleeve | |
| CN102357826B (en) | Self-centering fixture | |
| CN103769900A (en) | Flexible self-centering fixture | |
| CN104858694A (en) | Self-centering clamp for thin-walled part | |
| CN201862802U (en) | Inner expansion type positioning clamp | |
| CN203778797U (en) | Flexible self-centering clamp for thin-walled sleeve | |
| CN103495755A (en) | Machining clamp for outer wall of blind-hole thin-wall sleeve part and using method thereof | |
| CN107336040B (en) | Composite clamp for machining inner ring of synchronizer gear ring | |
| CN104889668A (en) | Reducing elastic mandrel clamping device | |
| US20140353929A1 (en) | Expanding arbor | |
| CN203751733U (en) | Fixture for turning external cambered surfaces of long shaft type cylindrical workpieces | |
| CN203778798U (en) | Self centering clamp for inner wall of thin-walled long sleeve | |
| CN202877950U (en) | Tubular workpiece self-centering holding device | |
| CN104043850A (en) | Floating clamp | |
| CN202240624U (en) | Self-centering fixture | |
| CN107246856B (en) | Positioning device and positioning method for expandable support inner cavity type cylindrical part | |
| CN102922450B (en) | Clamping device for cylindrical surface test piece | |
| CN104858695A (en) | Inner hole self-centering clamp for long thin-walled part |
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 |
Granted publication date: 20140820 Termination date: 20150223 |
|
| EXPY | Termination of patent right or utility model |