CN205600326U

CN205600326U - Chuck

Info

Publication number: CN205600326U
Application number: CN201620296407.8U
Authority: CN
Inventors: 岳志宾
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-04-11
Filing date: 2016-04-11
Publication date: 2016-09-28
Anticipated expiration: 2026-04-11

Abstract

The utility model discloses a chuck, including sleeve, folder, actuating lever, supply in the sleeve folder to hold and establishes, and this sleeve front end is equipped with and supplies the pervious thru hole of tool element, the folder includes a plurality of clamping jaws, this clamping jaw be equipped with with sleeve medial surface complex clamping jaw face, through the elastic element through connection between clamping jaw and the clamping jaw, actuating lever drive folder is operated tool element, the utility model discloses still including being used for placing the support of folder, this support with sleeve taper fit, and be equipped with on this support and be used for putting into the spacing groove of clamping jaw, this spacing groove and clamping jaw face contact cooperation.

Description

Chuck

Technical field

This utility model belongs to spare parts processing machinery technical field, is specifically related to a kind of for requiring the chuck on high-precision light processing mechanical apparatus or hand-held type electric tool.

Background technology

Publication No. 203863087U, publication date is the chuck structure that the Chinese patent on October 8th, 2014 discloses a kind of improvement, mainly it is installed with for a folder by a sleeve, its back segment and base lock set, and its front end is provided with the open-work worn for tool piece, this folder is made up of the jaw of four annular arrangements, it is provided with flexible member between two jaws, its inner face both sides respectively form a positive stop end, and screw togather with a drive rod one end in sleeve, this drive rod then interlocks with by electricity (gas) power, the sheathed rolling disk in this drive rod upper end, and it is provided with a pushing block in rolling disk, this pushing block is located at below folder, by turn drive rod, pushing block is made to push toward folder or recess, form clamping or depart from workpiece.But its structure has a disadvantage in that

1, jaw degree of freedom in sleeve is unrestricted, additionally because of the side opening degree of depth on jaw, its length, all can affect its final operating accuracy；

2, this chuck structure product parts quantity is many, and assembling procedure is loaded down with trivial details, and product quality weight.

Utility model content

Utility model purpose: the problem and shortage existed for above-mentioned prior art, the purpose of this utility model is to provide a kind of chuck, improves from the shape of structure, part, finally to realize high workload precision.

Technical scheme: the utility model discloses a kind of chuck, including sleeve, folder, drive rod, it is installed with for folder in described sleeve, and this barrel forward end is provided with the open-work penetrated for tool piece, described folder includes some jaws, this jaw is provided with the jaw face coordinated with sleeve medial surface, run through by flexible member between jaw with jaw and be connected, described drive rod drives folder to operate tool piece, this utility model also includes the support for placing folder, this support and described sleeve taper fit, and this support is provided with the stopper slot for putting into described jaw, this stopper slot contacts cooperation with jaw face, the deformation direction of described flexible member is sleeve radial direction.

Drive rod proceeds in sleeve, and this drive rod front end contacts with frame bottom and drives support moved axially forward, meanwhile, jaw in described stopper slot along sleeve medial surface forward slip, it is achieved clamping tool part action；When drive rod screws out, owing to the outside power of axle is zero, jaw is without responsive to axial force when, and the flexible member deformed upon when being clamped action restores to the original state, and then drives jaw to slide backward along sleeve medial surface in stopper slot, it is achieved release function.

As further optimization of the present utility model, sleeve described in the utility model includes protheca and rear enclosure, the front end of protheca is internal is up-narrow and down-wide pyramidal structure, threaded with rear enclosure in the rear end of protheca, this rear enclosure is connected with described drive rod, is specially provided with in rear enclosure and screws in, for drive rod, the screw channel screwed out.

As further optimization of the present utility model, jaw described in the utility model includes jaw main body, be positioned in described jaw main body and the jaw face that coordinates with sleeve medial surface and the work surface for clamping tool part, the bottom of this jaw is provided with the open-work run through for flexible member, this jaw face width degree is more than jaw body width, this work surface is pyramidal structure, slide with the laminating of sleeve medial surface in this jaw face, use a flexible member that some jaws are extended completely through connection, it is achieved to simplify the effect of chuck structure.

As further optimization of the present utility model, this utility model also includes being placed in bottom jaw and plays the top flat of power transmission between drive rod.

As further optimization of the present utility model, this utility model also includes being placed in bottom jaw and plays the top flat of power transmission between described rear enclosure.

After drive rod screws in, drive rod drives top flat, and its driving effect of jaw is made jaw slide by top flat.

As further optimization of the present utility model, rear set upper side described in the utility model is provided with the step groove being installed with for top flat, and after drive rod drives top flat, top flat carries out axially-movable along step groove.

As further optimization of the present utility model, the work surface of jaw described in the utility model is tip pyramidal structure.

Beneficial effect: this utility model is compared with prior art, have the advantage that this utility model is by increasing support to limit folder position, guarantee folder functional reliability, by using the flexible member of integral type that jaw is carried out controller perturbation, reduce chuck parts, to realize the functions such as chuck structure is reasonable, easy and simple to handle, operating accuracy is high.

Accompanying drawing explanation

Fig. 1 is perspective exploded view of the present utility model；

Fig. 2 is assembling view of the present utility model；

Fig. 3 is the schematic perspective view of protheca of the present utility model；

Fig. 4 is rear enclosure perspective view of the present utility model；

Fig. 5 is clamping jaw structure schematic diagram of the present utility model；

Fig. 6 is the flexible member schematic diagram of the present embodiment.

Fig. 7 is the structural representation after jaw of the present utility model assembles with flexible member；

Fig. 8 is supporting structure schematic diagram of the present utility model；

Fig. 9 is the state stereogram that jaw of the present utility model is positioned at support stopper slot；

Figure 10 is the schematic cross-section of Fig. 9；

Figure 11 is top flat schematic perspective view of the present utility model.

Detailed description of the invention

Below in conjunction with specific embodiment, this utility model is described in detail; but illustrate that protection domain of the present utility model is not limited to the concrete scope of the present embodiment simultaneously; based on the embodiment in this utility model; the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly falls into the scope of this utility model protection.

It should be noted that in description of the present utility model, except as otherwise noted, " multiple " are meant that two or more；Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ", " head ", the orientation of the instruction such as " afterbody " or position relationship be based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than instruction or the device of hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second ", " the 3rd " etc. are only used for describing purpose, and it is not intended that indicate or hint relative importance.

Embodiment 1

As depicted in figs. 1 and 2, a kind of chuck of the present embodiment, including protheca 1, folder, support 4, top flat 5, rear enclosure 6 and drive rod, folder is made up of some jaws 2 and flexible member 3, the rear end of protheca 1 threaded with rear enclosure 6 (may be used without be pressed into connected mode) form the sleeve being installed with for folder, folder realizes spacing in being placed in support 4, top flat 5 is arranged between support 4 with rear enclosure 6 and this top flat 5 contacts with bottom folder, and the deformation direction of this flexible member 3 is protheca 1 or the radial direction of rear enclosure 6.

Concrete, with reference to Fig. 3, the pyramidal structure that protheca 1 entirety of the present embodiment is up-narrow and down-wide includes tapered portion 11 and vertical tube part 12, this tapered portion 11 front end is provided with the open-work penetrated for tool piece, the medial wall of this vertical tube part 12 is provided with the female thread mated with rear enclosure 6 front end external screw thread, with reference to Fig. 4, the afterbody of rear enclosure 6 is hexagon shape or flat shape, it is easy to clamp with spanner, and rear enclosure 6 upper end is provided with the step groove 61 for housing top flat 5, this rear enclosure 6 is connected with drive rod, is specially provided with in rear enclosure 6 and screws in, for drive rod, the screw channel screwed out.

Concrete, as shown in Figure 5, the jaw 2 of the present embodiment includes jaw main body 21, it is positioned at the jaw face 22 coordinated outside described jaw main body 21 and with protheca 1 medial surface and the work surface 23 for clamping tool part, the bottom of this jaw 2 is provided with the open-work 24 run through for flexible member 3, this work surface 23 is tip pyramidal structure, this jaw face 22 width is more than jaw main body 21 width, jaw main body 21 length is more than jaw face 22 length, this open-work 24 is arranged on bottom jaw main body 21, the work surface 23 of the present embodiment is pyramidal structure, slide with the laminating of protheca 1 medial surface in this jaw face 22, use a flexible member 3 that some jaws 2 are extended completely through connection, realize simplifying the effect of chuck structure, the flexible member 3 that the present embodiment uses is spring, with specific reference to Fig. 6, this spring is in the shape of a spiral.

nullConcrete，As shown in Figure 8，The support 4 of the present embodiment matches in up-narrow and down-wide pyramidal structure inside sleeve，Concrete，This support 4 planform is consistent with protheca 1 inner-cavity structure shape，The cavity penetrated for tool piece it is provided with in this support 4，And support 4 is provided with for the stopper slot 41 placing jaw 2 to limit jaw 2 position，With reference to Fig. 9 and Figure 10，The notch of the stopper slot 41 of the present embodiment is that structure wide outside and narrow inside includes exterior notch 411 and inner tank mouths 412，This exterior notch 411 width mates with jaw face 22 width，Inner tank mouths 412 width mates with jaw main body 21 width，With specific reference to Fig. 7，Its concrete assembling process is: be respectively put in stopper slot 41 by three jaws 2，One end of flexible member 3 is pulled open the open-work 24 being inserted a jaw 2，Sequentially pass through three jaws 2，Thus jaw face 22 contacts with inner tank mouths 412，Realize jaw 2 slide anteroposterior in stopper slot 41.

Concrete, as shown in figure 11, one end that the top flat 5 of the present embodiment contacts with rear enclosure 6 is provided with notch 51, this notch 51 width is slightly larger than rear enclosure 6 female thread channel width, and less than step groove 61 width, when being positioned at the drive rod precession of screw channel, drive rod promotes top flat 5 to advance along sleeve axial direction, drive jaw 2 to advance therewith, tool piece is tightened up action.

Drive rod proceeds in rear enclosure 6, this drive rod front end contacts with top flat 5 and drives top flat 5 to move up to sleeve axial direction, simultaneously, top flat 5 promotes jaw 2, making jaw 2 along stopper slot 41 notch upward sliding in stopper slot 41, owing to protheca 1 is up-narrow and down-wide structure, therefore jaw 2 is during upward sliding, flexible member 3 is forced to shrink, it is achieved clamping tool part action；When drive rod screws out, owing to the outside power of axle is zero, jaw 2 is without responsive to axial force when, by being forced the flexible member restorable elastic force effect shunk when being clamped action, stretching jaw 2, makes jaw 2 along sleeve axial direction slide downward, it is achieved release function.

Embodiment 2

Compared with Example 1, the present embodiment does not use top flat 5 to the present embodiment, and the front end face of drive rod contacts with the rear end face of jaw main body 21, it is achieved drive rod directly drives jaw.

Above-described embodiment 1 and embodiment 2 all use three jaws 2, drive rod promotes three jaws 2 by top flat 5 simultaneously, or drive rod promotes three jaws 2 the most simultaneously, but jaw 2 quantity is not limited to that, the open-work quantity that jaw main body 21 is provided with meet one and more than one, particular number is arranged according to different demands.

Embodiment of the present utility model is given for the sake of example and description, and is not exhaustively or this utility model to be limited to disclosed form.Many modifications and variations are apparent from for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present utility model and actual application are more preferably described, and makes those of ordinary skill in the art it will be appreciated that this utility model thus design are suitable to the various embodiments with various amendments of special-purpose.

Claims

1. chuck, is installed with for folder including in sleeve, folder, drive rod, described sleeve, and before this sleeve End is provided with the open-work penetrated for tool piece, and described folder includes some jaws, and this jaw is provided with and sleeve medial surface The jaw face coordinated, is run through by flexible member between jaw with jaw and is connected, and described drive rod drives folder pair Tool piece operates, it is characterised in that: also include the support for placing folder, this support and described sleeve Taper fit, and this support is provided with the stopper slot for putting into described jaw, this stopper slot contacts with jaw face Coordinating, the deformation direction of described flexible member is sleeve radial direction.

Chuck the most according to claim 1, it is characterised in that: described sleeve includes protheca and rear enclosure, The front end of protheca is internal be up-narrow and down-wide pyramidal structure, threadeds with rear enclosure in the rear end of protheca, this rear enclosure and Described drive rod connects.

Chuck the most according to claim 1 and 2, it is characterised in that: described jaw include jaw main body, The jaw face that is positioned in described jaw main body and coordinate with sleeve medial surface and the work surface for clamping tool part, The bottom of this jaw is provided with the open-work run through for flexible member, and this jaw face width degree is more than jaw body width, should Slide with the laminating of sleeve medial surface in jaw face.

Chuck the most according to claim 1, it is characterised in that: also include being placed in bottom jaw and drive The top flat of power transmission is played between bar.

Chuck the most according to claim 2, it is characterised in that: also include being placed in bottom jaw with described The top flat of power transmission is played between rear enclosure.

Chuck the most according to claim 5, it is characterised in that: described rear set upper side is provided with and holds for top flat If step groove.

Chuck the most according to claim 3, it is characterised in that: the work surface of described jaw is tip cone Shape structure.