CN204397378U - Hydraulic self-centering centre frame - Google Patents
Hydraulic self-centering centre frame Download PDFInfo
- Publication number
- CN204397378U CN204397378U CN201520016271.6U CN201520016271U CN204397378U CN 204397378 U CN204397378 U CN 204397378U CN 201520016271 U CN201520016271 U CN 201520016271U CN 204397378 U CN204397378 U CN 204397378U
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- CN
- China
- Prior art keywords
- cam follower
- pivoted arm
- rear end
- housing
- chute
- 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
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Abstract
The utility model relates to hydraulic self-centering centre frame, comprise housing, housing forward end both sides are all rotatably connected to clamping pivoted arm, the cam follower doing straight reciprocating motion is provided with in housing, cam follower both sides are rotatably connected to backhaul plate respectively, backhaul plate is provided with chute, and clamping pivoted arm rear end is provided with the bearing pin corresponding with chute, and bearing pin is installed in chute; The front end of clamping pivoted arm is provided with spring bearing, and cam follower front end is also provided with spring bearing; Clamping pivoted arm rear end is provided with rotating sliding bearing, cam follower is provided with the curved surface corresponding with sliding bearing; Housing rear end is provided with hydraulic driving oil cylinder, and hydraulic driving oil cylinder comprises cylinder block and is placed in the liquid presses piston pole for driving cam push rod in cylinder block, and described liquid presses piston pole is connected to cam follower rear end.The utility model be convenient to self-centering, centering precision high, be convenient to improve working (machining) efficiency, backhaul yoke plate device structure is simple.
Description
Technical field
The utility model relates to centre frame technical field, specifically relates to hydraulic self-centering centre frame.
Background technology
Conventional center frame is generally 2 or supported at three point, manually each support bar of manual adjustment, thus reach the object concentric with main shaft, the precision regulated often depends on the feel of skilled worker, institute by this way and unreliable, and precision and efficiency lower, can not meet Digit Control Machine Tool processing to high accuracy and high efficiency requirement; Meanwhile, backhaul yoke plate clamping pivoted arm and push rod linked together of traditional numeric-control centre frame, its structure is comparatively complicated.
Utility model content
Technical problem to be solved in the utility model be to provide one be convenient to self-centering, centering precision high, be convenient to improve working (machining) efficiency, the simple hydraulic self-centering centre frame of backhaul yoke plate device.
For solving the problems of the technologies described above, the utility model provides following technical scheme: hydraulic self-centering centre frame, comprise housing, described housing forward end both sides are all rotatably connected to clamping pivoted arm, be provided with the cam follower doing straight reciprocating motion in described housing, described cam follower both sides are rotatably connected to backhaul plate respectively, and described backhaul plate is provided with chute, described clamping pivoted arm rear end is provided with the bearing pin corresponding with chute, and described bearing pin is installed in chute; The front end of described clamping pivoted arm is provided with spring bearing, and described cam follower front end is also provided with spring bearing; Described clamping pivoted arm rear end is provided with rotating sliding bearing, and described cam follower is provided with the curved surface corresponding with sliding bearing; Described housing rear end is provided with hydraulic driving oil cylinder, and described hydraulic driving oil cylinder comprises cylinder block and is placed in the liquid presses piston pole for driving cam push rod in cylinder block, and described liquid presses piston pole is connected to cam follower rear end.
On such scheme basis preferably, described clamping pivoted arm is rotationally connected with housing by tumbler shaft.
The beneficial effect that the utility model compared with prior art has is: wherein, when the liquid presses piston pole driving cam push rod of hydraulic jack does linear advancement, cam follower utilizes the contact of its curved surface and sliding bearing to drive upper and lower two clamping pivoted arms to rotate in opposite directions, thus make the spring bearing of two of clamping pivoted arm spring bearings and cam follower jointly clamp excircle of workpiece, realize clamping and feeling relieved, centering precision is high; When the liquid presses piston pole of hydraulic jack drives cam follower to do straight line retrogressing, cam follower utilizes upper and lower two backhaul plates to drive upper and lower two clamping pivoted arms to rotate dorsad to present open configuration; Wherein, the curved surface of cam follower is drawn by CAD system by equation, has very high contour accuracy, has the effect of auto-compensation, thus makes its self-centering in whole working range; Wherein, cam follower is realized automatically driving by hydraulic driving oil cylinder, is convenient to self-centering and Automated condtrol; Wherein, the backhaul yoke plate device that the utility model adopts adopts backhaul plate, and structure is simple simultaneously can to meet instructions for use; Wherein, by three common holding workpiece cylindricals of spring bearing, be just suitable for high cutting rotational speeds, improve working (machining) efficiency.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model backhaul plate and clamping pivoted arm, cam follower matching relationship schematic diagram.
Number in the figure is: 1-clamps pivoted arm, 2-cam follower, 3-liquid presses piston pole, 4-cylinder block, 5-tumbler shaft, 6-spring bearing, 7-sliding bearing, 8-housing, 9-bearing pin, 10-backhaul plate, 11-chute, 12-curved surface.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
In description of the present utility model, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is only the utility model for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
See figures.1.and.2 known, hydraulic self-centering centre frame, comprise housing 8, both sides, described housing 8 front end have all been rotatably connected by tumbler shaft 5 and have clamped pivoted arm 1, be provided with the cam follower 2 doing straight reciprocating motion in described housing 8, described cam follower 2 both sides are rotatably connected to backhaul plate 10 respectively, and described backhaul plate 10 is provided with chute 11, described clamping pivoted arm 1 rear end is provided with the bearing pin 9 corresponding with chute 11, and described bearing pin 9 is installed in chute 11; The front end of described clamping pivoted arm 1 is provided with spring bearing 6, and described cam follower 2 front end is also provided with spring bearing 6; Described clamping pivoted arm 1 rear end is provided with rotating sliding bearing 7, and described cam follower 2 is provided with the curved surface 12 corresponding with sliding bearing 7; Described housing 8 rear end is provided with hydraulic driving oil cylinder, and described hydraulic driving oil cylinder comprises cylinder block 4 and is placed in the liquid presses piston pole 3 for driving cam push rod 2 in cylinder block 4, and described liquid presses piston pole 3 is connected to cam follower 2 rear end.
Wherein, when the liquid presses piston pole 3 driving cam push rod 2 of hydraulic jack does linear advancement, cam follower 2 utilizes its curved surface 12 to drive upper and lower two clamping pivoted arms 1 to rotate in opposite directions with the contact of sliding bearing 7, thus make two of clamping pivoted arm 1 spring bearings 6 jointly clamp excircle of workpiece with the spring bearing 6 of cam follower 2, realize clamping and feeling relieved, centering precision is high; When the liquid presses piston pole 3 of hydraulic jack drives cam follower 2 to do straight line retrogressing, cam follower 2 utilizes upper and lower two backhaul plates 10 to drive upper and lower two clamping pivoted arms 1 to rotate dorsad to present open configuration; Wherein, the curved surface 12 of cam follower 2 is drawn by CAD system by equation, has very high contour accuracy, has the effect of auto-compensation, thus makes its self-centering in whole working range; Wherein, cam follower 2 is realized automatically driving by hydraulic driving oil cylinder, is convenient to self-centering and Automated condtrol; Wherein, the backhaul yoke plate device that the utility model adopts adopts backhaul plate 10, and structure is simple simultaneously can to meet instructions for use; Wherein, by the common holding workpiece cylindrical of three spring bearings 6, be just suitable for high cutting rotational speeds, improve working (machining) efficiency.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. hydraulic self-centering centre frame, comprise housing, described housing forward end both sides are all rotatably connected to clamping pivoted arm, the cam follower doing straight reciprocating motion is provided with in described housing, described cam follower both sides are rotatably connected to backhaul plate respectively, described backhaul plate is provided with chute, and described clamping pivoted arm rear end is provided with the bearing pin corresponding with chute, and described bearing pin is installed in chute; The front end of described clamping pivoted arm is provided with spring bearing, and described cam follower front end is also provided with spring bearing; Described clamping pivoted arm rear end is provided with rotating sliding bearing, and described cam follower is provided with the curved surface corresponding with sliding bearing; Described housing rear end is provided with hydraulic driving oil cylinder, and described hydraulic driving oil cylinder comprises cylinder block and is placed in the liquid presses piston pole for driving cam push rod in cylinder block, and described liquid presses piston pole is connected to cam follower rear end.
2. hydraulic self-centering centre frame according to claim 1, is characterized in that: described clamping pivoted arm is rotationally connected with housing by tumbler shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520016271.6U CN204397378U (en) | 2015-01-12 | 2015-01-12 | Hydraulic self-centering centre frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520016271.6U CN204397378U (en) | 2015-01-12 | 2015-01-12 | Hydraulic self-centering centre frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204397378U true CN204397378U (en) | 2015-06-17 |
Family
ID=53421276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520016271.6U Expired - Fee Related CN204397378U (en) | 2015-01-12 | 2015-01-12 | Hydraulic self-centering centre frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204397378U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458308A (en) * | 2016-02-01 | 2016-04-06 | 广东石油化工学院 | Follow rest for turning uniform reducing slender shaft |
| CN107127590A (en) * | 2017-06-09 | 2017-09-05 | 北京工业大学 | A kind of dexterous three-jaw automatic centring fixture of translation swallow appearance cam mandrel type |
| CN107999653A (en) * | 2018-01-19 | 2018-05-08 | 江苏省机械研究设计院有限责任公司 | A kind of centre frame position adjusting mechanism for valve rod clamping |
| CN109202111A (en) * | 2018-11-26 | 2019-01-15 | 安徽全柴动力股份有限公司 | A kind of camshaft processing clamping device and working method |
| CN109506873A (en) * | 2018-11-22 | 2019-03-22 | 中国核电工程有限公司 | It is a kind of can fast automatic release test part suspender |
| CN109531187A (en) * | 2018-12-26 | 2019-03-29 | 宁波市精恒凯翔机械有限公司 | Built-in centering center rest |
-
2015
- 2015-01-12 CN CN201520016271.6U patent/CN204397378U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458308A (en) * | 2016-02-01 | 2016-04-06 | 广东石油化工学院 | Follow rest for turning uniform reducing slender shaft |
| CN107127590A (en) * | 2017-06-09 | 2017-09-05 | 北京工业大学 | A kind of dexterous three-jaw automatic centring fixture of translation swallow appearance cam mandrel type |
| CN107999653A (en) * | 2018-01-19 | 2018-05-08 | 江苏省机械研究设计院有限责任公司 | A kind of centre frame position adjusting mechanism for valve rod clamping |
| CN109506873A (en) * | 2018-11-22 | 2019-03-22 | 中国核电工程有限公司 | It is a kind of can fast automatic release test part suspender |
| CN109202111A (en) * | 2018-11-26 | 2019-01-15 | 安徽全柴动力股份有限公司 | A kind of camshaft processing clamping device and working method |
| CN109531187A (en) * | 2018-12-26 | 2019-03-29 | 宁波市精恒凯翔机械有限公司 | Built-in centering center rest |
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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: 20150617 Termination date: 20210112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |