CN106863162A - The small-sized hex nut clamp of self-action - Google Patents

The small-sized hex nut clamp of self-action Download PDF

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Publication number
CN106863162A
CN106863162A CN201710270034.6A CN201710270034A CN106863162A CN 106863162 A CN106863162 A CN 106863162A CN 201710270034 A CN201710270034 A CN 201710270034A CN 106863162 A CN106863162 A CN 106863162A
Authority
CN
China
Prior art keywords
hole
small
hex nut
self
binding clip
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.)
Pending
Application number
CN201710270034.6A
Other languages
Chinese (zh)
Inventor
王国力
车毕琴
李火生
赖盛景
郝文锐
张智胜
侯强
罗军
秦晋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Engineering Research Institute China Academy of Engineering Physics
Original Assignee
General Engineering Research Institute China Academy of Engineering Physics
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by General Engineering Research Institute China Academy of Engineering Physics filed Critical General Engineering Research Institute China Academy of Engineering Physics
Priority to CN201710270034.6A priority Critical patent/CN106863162A/en
Publication of CN106863162A publication Critical patent/CN106863162A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00Clamps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

The invention discloses a kind of small-sized hex nut clamp of self-action, drive mechanism for controlling chela is constituted by pressure cap, compression spring, connecting rod, conical head, binding clip, pre-compressed spring and lever together, chela is the pyramidal structure arranged by some claw bar claw bar rings, pre-compressed spring is provided between each claw bar and binding clip, each claw bar is strutted during conical head axial feed, each claw bar is closed up in the presence of reserved spring, crawl to small-sized hex nut is realized by such action, is screwed and fasten etc. and operate.The present invention is the small-sized hex nut clamp of self-action designed for the design feature of small-sized hex nut, and it has the advantages that light weight, simple structure, easy to operate and highly versatile, it is adaptable to the operation of the small-sized hex nut of plurality of specifications.

Description

The small-sized hex nut clamp of self-action
Technical field
The present invention relates to a kind of fastener operation instrument, specially a kind of small-sized hex nut clamp of self-action.
Background technology
Specification is rather extensive in the application of the aspects such as machinery, instrument and instrument in the small-sized hex nut of below M3, but behaviour Make difficulty larger.The slightly larger threaded connection fastener of specification typically all can the pickup of naked hand, screw, and by open-end wrench, sleeve The instruments such as spanner, screwdriver carry out screwing operations.Due to small-sized hex nut small volume, the operation such as naked hand is picked up, screwed is very Difficulty, and be there is also instead of naked hand using instruments such as tweezers and be difficult to be accurately positioned, screw the problem of fixed difficulty, and operated The accident that small-sized hex nut is easily caused in journey is come off, and the nut for coming off sometimes is fallen into complicated, accurate instrument and equipment, It is difficult to seek or processes, brings potential safety hazard even to threaten to the normal operation of equipment.Therefore, it is highly desirable to for small-sized The characteristics of hex nut, specially design a kind of instrument be easy to and operate.
The content of the invention
The purpose of the present invention is that and provide a kind of small-sized hex nut clamp of self-action in order to solve the above problems.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of small-sized hex nut clamp of self-action, including lever, connecting rod, pressure cap, compression spring, binding clip and chela;
The lever and the connecting rod are straight-bar structure, and the lever is axially arranged through hole, the pitman shaft To being installed in the through hole of the lever, the through hole of the lever is axially formed by connecting successively by upper, middle and lower segment straight hole, institute The stage casing straight hole aperture of through hole of lever is stated more than epimere straight hole aperture and hypomere straight hole aperture, one end of the connecting rod processes There is conical head and the other end passes through the compression spring and is connected with the pressure cap, be pressed in for the compression spring by the pressure cap In Duan Zhikong, the bigger diameter end diameter of the conical head is less than hypomere straight hole aperture and more than stage casing straight hole aperture;
The binding clip is provided with through hole, and the conical head and described has from top to bottom been sequentially arranged in the through hole of the binding clip Chela, the binding clip is connected with the lever interference fit, and the chela is the taper knot arranged by some claw bar rings Structure, the tapered end portion of the chela is extend out to outside the through hole of the binding clip, and the cone tail end of the chela is formed with bellmouth, described The tapered end portion of conical head is enclosed within the bellmouth, is provided with pre-compressed spring between the every claw bar and the binding clip, institute The extended axis of the horse for stating pre-compressed spring is vertical with the extended axis of the horse of the conical head and intersect, between adjacent two claw bars Elastic gap is left, the tapered end portion of the every claw bar is provided with the pincers tooth for capturing small-sized hex nut.
Used as a kind of technical scheme that this patent is selected, the pressure cap is provided with axle spacing hole, and the connecting rod interference is matched somebody with somebody Conjunction is connected in the axle spacing hole of the pressure cap.
Used as a kind of technical scheme that this patent is selected, the through hole of the binding clip is shoulder hole structure, the lever interference It is connected in the through hole large-diameter portion of the binding clip.
Used as a kind of technical scheme that this patent is selected, the cone tail end of the claw bar is radially machined with guiding sliding part, institute The through-hole wall for stating binding clip is provided with pilot hole, and the pre-compressed spring is located in the guiding slide opening, and the guiding sliding part is put In in the guiding slide opening, the pre-compressed spring is squeezed in the guiding slide opening by the guiding sliding part, the guiding The extended axis of the horse of slide opening is vertical with the extended axis of the horse of the conical head and intersects.
Used as a kind of technical scheme that this patent is selected, the quantity of the claw bar is two or more than two.
Used as a kind of technical scheme that this patent is selected, the terebrantia inner side of the claw bar is provided with oblique cambered surface, some The oblique cambered surface of the claw bar terebrantia constitutes the bellmouth, the extended axis of the horse of the bellmouth and the conical head together Extended axis of the horse overlaps.
Used as a kind of technical scheme that this patent is selected, the pre-compressed spring is cylindroid helical-coil compression spring, tower compression Spring or multi-layer corrugated spring.
As a kind of technical scheme that this patent is selected, the chela, the binding clip, the conical head, the connecting rod Extended axis of the horse with the lever overlaps.
Used as a kind of technical scheme that this patent is selected, the inner surface of the lever outer surface and the pincers tooth is provided with Annular knurl.
The beneficial effects of the present invention are:
The present invention is the small-sized hex nut clamp of self-action designed for the design feature of small-sized hex nut, and it has There are light weight, simple structure, easy to operate and highly versatile, it is adaptable to the operation of the small-sized hex nut of plurality of specifications.
Brief description of the drawings
Fig. 1 is the cross section structure diagram of the small-sized hex nut clamp of self-action of the present invention;
Fig. 2 is the structural representation of claw bar of the present invention;
Fig. 3 is the cross section structure diagram when present invention accompanies small-sized hex nut;
In figure:1- pressure caps, 2- levers, 3- compression springs, 4- bellmouths, 5- connecting rods, 6- conical heads, 7- binding clips, 8- leads To slide opening, 9- pre-compressed springs, 10- chelas, 11- claw bars, 12- is oriented to sliding part, 13- pincers teeth, the small-sized hex nuts of 14-.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings:
With reference to shown in Fig. 1 and Fig. 2, including lever 2, connecting rod 5, pressure cap 1, compression spring 3, binding clip 7 and chela 10;
Lever 2 and connecting rod 5 are straight-bar structure, and lever 2 is axially arranged through hole, and connecting rod 5 is axially mounted to lever 2 Through hole in, the through hole of lever 2 is axially formed by connecting successively by upper, middle and lower segment straight hole, the stage casing straight hole of the through hole of lever 2 Aperture is more than epimere straight hole aperture and hypomere straight hole aperture, and one end of connecting rod 5 is machined with conical head 6 and the other end passes through compression Spring 3 is simultaneously connected with pressure cap 1, and be pressed in compression spring 3 in epimere straight hole by pressure cap 1, and the bigger diameter end diameter of conical head 6 is less than hypomere Straight hole aperture and more than stage casing straight hole aperture;
Binding clip 7 is provided with through hole, and conical head 6 and chela 10, binding clip 7 have from top to bottom been sequentially arranged in the through hole of binding clip 7 It is connected with the interference fit of lever 2, chela 10 is the pyramidal structure arranged by the ring of some claw bars 11, the tapered end portion of chela 10 It extend out to outside the through hole of binding clip 7, the cone tail end of chela 10 is formed with bellmouth 4, and the tapered end portion of conical head 6 is enclosed within bellmouth 4 It is interior, pre-compressed spring 9 is provided between every claw bar 11 and binding clip 7, in the extended axis of the horse and conical head 6 of pre-compressed spring 9 Axle extended line vertically and intersects, and elastic gap is left between adjacent two claw bars 11, and the tapered end portion of every claw bar 11 is respectively provided with There is the pincers tooth 13 for capturing small-sized hex nut 14.
Pressure cap 1, compression spring 3, connecting rod 5, conical head 6, binding clip 7, pre-compressed spring 9 and lever 2 together constitute for Control chela 10 opens and presss from both sides the drive mechanism held together.Binding clip 7 is made up of some claw bars 11 being not attached to each other together, The elastic force of pre-compressed spring 9 is overcome to strut some claw bars 11 to realize opening for chela 10 by drive mechanism;Decontroling pressure cap 1 Afterwards, under the elastic force effect of pre-compressed spring 9, some claw bars 11 are promoted to center, so as to realize that chela 10 clamps small-sized hexagonal The action of nut 14.Pincers tooth 13 is the nut crawl position of chela 10, its thickness that highly should be greater than nut to be held.Lever 2 The cascaded surface at through hole two ends is respectively used to limit the axial location of compression spring 3 and conical head 6, to prevent connecting rod 5 from therefrom sliding It is de-.
Used as a kind of technical scheme that this patent is selected, pressure cap 1 is provided with axle spacing hole, the connection of the interference fit of connecting rod 5 In the axle spacing hole of pressure cap 1.
Used as a kind of technical scheme that this patent is selected, the through hole of binding clip 7 is shoulder hole structure, and the interference fit of lever 2 connects It is connected on the through hole large-diameter portion of binding clip 7.
Used as a kind of technical scheme that this patent is selected, the cone tail end of claw bar 11 is radially machined with guiding sliding part 12, pincers First 7 through-hole wall is provided with pilot hole, and pre-compressed spring 9 is located at and is oriented in slide opening 8, is oriented to sliding part 12 and is placed in guiding slide opening 8 Interior, pre-compressed spring 9 is squeezed in guiding slide opening 8 by being oriented to sliding part 12, is oriented to the extended axis of the horse and conical head 6 of slide opening 8 Extended axis of the horse vertically and intersect.
Used as a kind of technical scheme that this patent is selected, the quantity of claw bar 11 is two or more than two.Two claw bars 11 Just the crawl function of chela 10 can be realized, quantity is more, and chela 10 is more accurate.
Used as a kind of technical scheme that this patent is selected, the terebrantia inner side of claw bar 11 is provided with oblique cambered surface, some pawls The oblique cambered surface of the terebrantia of bar 11 constitutes bellmouth 4, the extended axis of the horse of bellmouth 4 and the extended axis of the horse weight of conical head 6 together Close.Conical head 6 is axially advanced towards the tapered end of bellmouth 4, then strutted chela 10, otherwise chela 10 draws in.
Used as a kind of technical scheme that this patent is selected, pre-compressed spring 9 is cylindroid helical-coil compression spring 3, tower compression bullet Spring 3 or multi-layer corrugated spring.
As a kind of technical scheme that this patent is selected, in chela 10, binding clip 7, conical head 6, connecting rod 5 and lever 2 Axle extended line overlaps, preferably to realize the precision operation of each part.
Used as a kind of technical scheme that this patent is selected, the inner surface of the outer surface of lever 2 and pincers tooth 13 is provided with annular knurl, Annular knurl is prevented from skidding.
With reference to shown in Fig. 3, the operation principle of the small-sized hex nut clamp of self-action of the present invention is as follows:
The clamp is used for the pickup of small-sized hex nut 14, clamp, screw and fasten etc. and operate.It is hand-held during use Lever 2, presses with finger pressure cap 1, and with the movement of pressure cap 1, the conical head 6 of the other end of connecting rod 5 is moved axially forward, taper First 6 is slip cooperating relationship with the bellmouth 4 on chela 10, and under the impetus of conical head 6, each claw bar 11 is to principle axis The direction motion of line, the elastic gap increase between each claw bar 11, pincers tooth 13 opens;Pincers tooth 13 is directed at small-sized hex nut 14, the finger of pressing pressure cap 1 is unclamped, in the presence of compression spring 3, conical head 6 is moved backward, at the same time, in precompressed bullet Under the top pressure effect of spring 9, the elastic gap between each claw bar 11 reduces, and pincers tooth 13 clamps small-sized hex nut 14.In this way, can The operation such as further screwed, fastened to nut by the small-sized clamp of hex nut 14 of self-action.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and Any modification, equivalent and improvement for being made within principle etc., should be included within the scope of the present invention.

Claims (9)

1. the small-sized hex nut clamp of a kind of self-action, it is characterised in that:Including lever, connecting rod, pressure cap, compression spring, pincers Head and chela;
The lever and the connecting rod are straight-bar structure, and the lever is axially arranged through hole, and the pitman shaft is to peace In through hole loaded on the lever, the through hole of the lever is axially formed by connecting successively by upper, middle and lower segment straight hole, described to hold The stage casing straight hole aperture of the through hole of handle is more than epimere straight hole aperture and hypomere straight hole aperture, and one end of the connecting rod is machined with cone Forming head and the other end are connected through the compression spring and with the pressure cap, and it is straight that the compression spring is pressed in epimere by the pressure cap In hole, the bigger diameter end diameter of the conical head is less than hypomere straight hole aperture and more than stage casing straight hole aperture;
The binding clip is provided with through hole, and the conical head and the pincers have from top to bottom been sequentially arranged in the through hole of the binding clip Pawl, the binding clip is connected with the lever interference fit, and the chela is the pyramidal structure arranged by some claw bar rings, The tapered end portion of the chela is extend out to outside the through hole of the binding clip, and the cone tail end of the chela is formed with bellmouth, the cone The tapered end portion of forming head is enclosed within the bellmouth, and pre-compressed spring is provided between the every claw bar and the binding clip, described The extended axis of the horse of pre-compressed spring is vertical with the extended axis of the horse of the conical head and intersects, between adjacent two claw bars Elastic gap is left, the tapered end portion of the every claw bar is provided with the pincers tooth for capturing small-sized hex nut.
2. the small-sized hex nut clamp of self-action according to claim 1, it is characterised in that:The pressure cap is provided with axle limit Position hole, the connecting rod interference fit is connected in the axle spacing hole of the pressure cap.
3. the small-sized hex nut clamp of self-action according to claim 1, it is characterised in that:The through hole of the binding clip is rank Terraced pore structure, the lever interference fit is connected to the through hole large-diameter portion of the binding clip.
4. the small-sized hex nut clamp of self-action according to claim 1, it is characterised in that:The cone tail end footpath of the claw bar To guiding sliding part is machined with, the through-hole wall of the binding clip is provided with pilot hole, and the pre-compressed spring is located at described guiding and slides In hole, the guiding sliding part is placed in the guiding slide opening, and the pre-compressed spring is squeezed in institute by the guiding sliding part State in guiding slide opening, the extended axis of the horse for being oriented to slide opening is vertical with the extended axis of the horse of the conical head and intersects.
5. the small-sized hex nut clamp of self-action according to claim 1, it is characterised in that:The quantity of the claw bar is two Root or more than two.
6. the small-sized hex nut clamp of self-action according to claim 1, it is characterised in that:In the terebrantia of the claw bar Side is provided with oblique cambered surface, and the oblique cambered surface of some claw bar terebrantias constitutes the bellmouth together, in the bellmouth Axle extended line overlaps with the extended axis of the horse of the conical head.
7. the small-sized hex nut clamp of self-action according to claim 1, it is characterised in that:The pre-compressed spring is cylinder Spiral compression spring, tower compression spring or multi-layer corrugated spring.
8. the small-sized hex nut clamp of self-action according to claim 1, it is characterised in that:The chela, the binding clip, The extended axis of the horse of the conical head, the connecting rod and the lever overlaps.
9. the small-sized hex nut clamp of self-action according to claim 1, it is characterised in that:The lever outer surface and institute The inner surface for stating pincers tooth is provided with annular knurl.
CN201710270034.6A 2017-04-24 2017-04-24 The small-sized hex nut clamp of self-action Pending CN106863162A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710270034.6A CN106863162A (en) 2017-04-24 2017-04-24 The small-sized hex nut clamp of self-action

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710270034.6A CN106863162A (en) 2017-04-24 2017-04-24 The small-sized hex nut clamp of self-action

Publications (1)

Publication Number Publication Date
CN106863162A true CN106863162A (en) 2017-06-20

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Application Number Title Priority Date Filing Date
CN201710270034.6A Pending CN106863162A (en) 2017-04-24 2017-04-24 The small-sized hex nut clamp of self-action

Country Status (1)

Country Link
CN (1) CN106863162A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6056339A (en) * 1999-01-14 2000-05-02 Berger; Leon M. Magnetic retrieving device
US6394518B1 (en) * 2001-07-30 2002-05-28 Daniel E. Kelley Tile spacer remover tool
CN202804983U (en) * 2012-08-31 2013-03-20 武汉钢铁(集团)公司 Positioning clamp for axial fatigue test
CN204019385U (en) * 2014-09-01 2014-12-17 天津市祥泰带钢有限公司 A kind of pliers with screw-tightened function
CN104669240A (en) * 2013-11-30 2015-06-03 深圳富泰宏精密工业有限公司 Clamping mechanism
CN104889937A (en) * 2015-05-28 2015-09-09 张宜宝 Steel ball gripping device
CN205290716U (en) * 2015-12-25 2016-06-08 上海先惠机械有限公司 Fixture is screwed up in hexagon nut bucketing
CN106002136A (en) * 2016-06-07 2016-10-12 江苏八达电子有限公司 Material taking hand
CN206748255U (en) * 2017-04-24 2017-12-15 中国工程物理研究院总体工程研究所 The small-sized hex nut clamp of self-action

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6056339A (en) * 1999-01-14 2000-05-02 Berger; Leon M. Magnetic retrieving device
US6394518B1 (en) * 2001-07-30 2002-05-28 Daniel E. Kelley Tile spacer remover tool
CN202804983U (en) * 2012-08-31 2013-03-20 武汉钢铁(集团)公司 Positioning clamp for axial fatigue test
CN104669240A (en) * 2013-11-30 2015-06-03 深圳富泰宏精密工业有限公司 Clamping mechanism
CN204019385U (en) * 2014-09-01 2014-12-17 天津市祥泰带钢有限公司 A kind of pliers with screw-tightened function
CN104889937A (en) * 2015-05-28 2015-09-09 张宜宝 Steel ball gripping device
CN205290716U (en) * 2015-12-25 2016-06-08 上海先惠机械有限公司 Fixture is screwed up in hexagon nut bucketing
CN106002136A (en) * 2016-06-07 2016-10-12 江苏八达电子有限公司 Material taking hand
CN206748255U (en) * 2017-04-24 2017-12-15 中国工程物理研究院总体工程研究所 The small-sized hex nut clamp of self-action

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Application publication date: 20170620

RJ01 Rejection of invention patent application after publication