CN203779181U - Automatic self-centering clamp for thin-walled sleeve - Google Patents
Automatic self-centering clamp for thin-walled sleeve Download PDFInfo
- Publication number
- CN203779181U CN203779181U CN201420079233.0U CN201420079233U CN203779181U CN 203779181 U CN203779181 U CN 203779181U CN 201420079233 U CN201420079233 U CN 201420079233U CN 203779181 U CN203779181 U CN 203779181U
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- Prior art keywords
- axle
- mandrel
- thin
- automatic self
- fairlead
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Abstract
The utility model relates to an automatic self-centering clamp for a thin-walled sleeve. The automatic self-centering clamp for the thin-walled sleeve comprises a mandrel, a rotary shaft, an end cover and guide sleeves; 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 dial 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; the guide sleeves are fixedly connected in the radial through holes; positioning clamping pillars are movably matched and connected in the guide sleeves; a motor stator is arranged in the middle of the step inner hole of the mandrel; two ends of the rotor shaft are respectively connected with a connection hole in the front end of the step inner hole of the mandrel and an inner hole of the end cover fixed at the rear end surface of the mandrel by bearings respectively; outer cam pillars are respectively arranged at two sides of the motor rotor of the rotor shaft; each 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 automatic 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 the size of this clamp power is uncontrollable, in the process of clamping thin-walled parts, easily cause thin-walled parts distortion, particularly the distortion of thin-walled elongated workpieces is larger.
Summary of the invention
The utility model is to solve the control of the middle clamping force size of clamping of thin-walled elongated workpieces and the technical problem of machining deformation, and a kind of self-centering fixture is automatically provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of automatic self-centering fixture for thin walled cylinder body, comprise axle, armature spindle, end cap, fairlead, 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, in radial direction through hole, be fixedly connected with fairlead, the activity location clamping column that is connected in fairlead, motor stator is equipped with at the inner bore of step middle part of axle, armature spindle two ends are connected with the inner bore of step front end connecting hole of axle and the end cap endoporus being fixed on mandrels backend face by bearing respectively, the rotor both sides of armature spindle are respectively equipped with external cam post, 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.Back-moving spring is housed in fairlead, and back-moving spring two ends contact and are connected respectively with the boss upper surface of location clamping column with fairlead endoporus upper end step face.
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 armature spindle, external cam post and location clamping column, in the process of clamping thin-walled elongated workpieces, the distance outwards moving with regard to controlled formulation position clamping column by controlling armature spindle rotational angle, reach the size of controlling clamping force, make thin-walled elongated workpieces clamp machining deformation amount little, positioning precision is high, can ensure axiality and the perpendicularity of the thin-walled elongated workpieces after processing, and by armature spindle energy automated exchanged cutter thin-walled elongated workpieces.
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, for an automatic self-centering fixture for thin walled cylinder body, comprise axle 1, armature spindle 2, location clamping column 3, end cap 4, end face clamp nut 5, bearing 6, fairlead 8, back-moving spring 9, motor stator 10, rotor 11, external cam post 12.
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, in radial direction through hole, be fixedly connected with fairlead 8, the interior activity of fairlead 8 is connected and locates clamping column 3, motor stator 10 is equipped with at the inner bore of step middle part of axle 1, armature spindle 2 two ends are connected with the inner bore of step front end connecting hole of axle 1 and end cap 4 endoporus that are fixed on axle 1 rear end face by bearing 6 respectively, rotor 11 both sides of armature spindle 2 are respectively equipped with external cam post 12, each external cam post 12 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.Back-moving spring 9 is housed in fairlead 8, and back-moving spring 9 two ends contact and are connected respectively with the boss upper surface of location clamping column 3 with fairlead 8 endoporus upper end step faces.
When armature spindle 2 rotates along clockwise direction under the drive of rotor 11, location clamping column 3 outward directions on armature spindle 2 move, and its head contacts and pushes against with the inwall of thin-walled parts 7.
When armature spindle 2 rotates in the counterclockwise direction under the drive of rotor 11, the location clamping column 3 on armature spindle 2 moves inward with the inwall of thin-walled parts 7 and is separated under back-moving spring 9 effects.
Claims (4)
1. the automatic self-centering fixture for thin walled cylinder body, comprise axle (1), armature spindle (2), end cap (4), fairlead (8), 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, be fixedly connected with fairlead (8), the interior activity of fairlead (8) is connected and locates clamping column (3), motor stator (10) is equipped with at the inner bore of step middle part of axle (1), armature spindle (2) two ends are respectively by bearing (6) and axle 91) inner bore of step front end connecting hole and end cap (4) endoporus that is fixed on axle (1) rear end face be connected, rotor (11) both sides of armature spindle (2) are respectively equipped with external cam post (12), each external cam post (12) 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 automatic 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 automatic 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 automatic self-centering fixture for thin walled cylinder body according to claim 1, it is characterized in that: back-moving spring (9) is housed in described fairlead (8), and back-moving spring (9) two ends contact and are connected respectively with the boss upper surface of location clamping column (3) with fairlead (8) endoporus upper end step face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420079233.0U CN203779181U (en) | 2014-02-23 | 2014-02-23 | Automatic self-centering clamp for thin-walled sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420079233.0U CN203779181U (en) | 2014-02-23 | 2014-02-23 | Automatic self-centering clamp for thin-walled sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203779181U true CN203779181U (en) | 2014-08-20 |
Family
ID=51315409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420079233.0U Expired - Fee Related CN203779181U (en) | 2014-02-23 | 2014-02-23 | Automatic self-centering clamp for thin-walled sleeve |
Country Status (1)
| Country | Link |
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| CN (1) | CN203779181U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753323A (en) * | 2014-02-23 | 2014-04-30 | 张鸿来 | Automatic self-centering clamp |
| CN105619114A (en) * | 2016-02-22 | 2016-06-01 | 扬州工业职业技术学院 | Curved-face self-centering clamp |
| CN108284408A (en) * | 2018-03-23 | 2018-07-17 | 浙江大学山东工业技术研究院 | A kind of fixture |
| CN109015225A (en) * | 2018-09-19 | 2018-12-18 | 广东天机机器人有限公司 | Grinding device |
| CN110052854A (en) * | 2019-05-28 | 2019-07-26 | 四川鸿舰重型机械制造有限责任公司 | A kind of hot-blast stove furnace stay clamped one time turning clamping device |
| CN113310688A (en) * | 2021-05-06 | 2021-08-27 | 中国第一汽车股份有限公司 | Motor rotor shaft torsional fatigue test system |
-
2014
- 2014-02-23 CN CN201420079233.0U patent/CN203779181U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753323A (en) * | 2014-02-23 | 2014-04-30 | 张鸿来 | Automatic self-centering clamp |
| CN103753323B (en) * | 2014-02-23 | 2016-01-20 | 张鸿来 | Automatic self-centering fixture |
| CN105619114A (en) * | 2016-02-22 | 2016-06-01 | 扬州工业职业技术学院 | Curved-face self-centering clamp |
| CN105619114B (en) * | 2016-02-22 | 2020-04-21 | 扬州工业职业技术学院 | Curved surface self-centering clamp |
| CN108284408A (en) * | 2018-03-23 | 2018-07-17 | 浙江大学山东工业技术研究院 | A kind of fixture |
| CN109015225A (en) * | 2018-09-19 | 2018-12-18 | 广东天机机器人有限公司 | Grinding device |
| CN110052854A (en) * | 2019-05-28 | 2019-07-26 | 四川鸿舰重型机械制造有限责任公司 | A kind of hot-blast stove furnace stay clamped one time turning clamping device |
| CN110052854B (en) * | 2019-05-28 | 2024-04-16 | 四川鸿舰重型机械制造有限责任公司 | Primary turning clamping device for furnace column of hot blast stove |
| CN113310688A (en) * | 2021-05-06 | 2021-08-27 | 中国第一汽车股份有限公司 | Motor rotor shaft torsional fatigue test system |
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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 |