CN206028777U - Drive moving member is radial actuating mechanism and chuck that removes that come and go on mount pad - Google Patents

Abstract

The utility model provides a drive moving member is radial actuating mechanism and chuck that removes that come and go on mount pad, actuating mechanism includes: stir the piece, can rotate the setting relatively with the mount pad, and stirring the radial direction that the moving member that corresponds of piece belonged to and the flat rotation in surface that axial direction confirmed of mount pad by this, and with correspond the moving member is connected, drive assembly, have on it with stir a connecting portion of a distribution unanimity, stir the piece and correspond it is articulated to stir a connecting portion, just drive assembly drives along mount pad axial direction back and forth movement the time it drives to stir a rotation the moving member is followed the radial reciprocating motion of mount pad. The utility model provides a drive moving member is radial actuating mechanism and chuck that removes that come and go on mount pad, mechanical transmission subassembly simple structure, it is reliable and stable, can realize that the rotation is interfered to the nothing of chuck.

Description

Drive mechanism and chuck that driving moving member is radially reciprocated in mounting seat

Technical field

This utility model is related to Workpiece clamping device technical field, and in particular to a kind of to drive moving member footpath in mounting seat To the drive mechanism and chuck that reciprocate.

Background technology

Chuck utilizes the clamping and positioning realized to workpiece that moves radially of the movable jaw being distributed on chuck body, chuck to lead to Often it is arranged on lathe, cylindrical grinder or internal grinder and uses, common electric chuck, chuck body are provided with spiral parcel, blocks Pawl bottom is provided with the thread groove coordinated with spiral parcel, Motor drive drive axis, and power transmission shaft drives the rotation of spiral parcel, drives Dynamic claw is moved radially, but this electronic claw drive mechanism is not suitable for rotatable chuck, as moving radially for claw is leaned on The rotation driving of spiral parcel, and the rotation of spiral parcel is driven by drive axis, therefore while chuck rotation, transmission Axle is not also with chuck while rotation, power transmission shaft and motor connection, motor is rotated, then by motor shadow during chuck drive drive axis Ring and there is larger resistance, cause chuck keep synchronous with the rotation of power transmission shaft and there is relative motion, the rotation of chuck Rotation presence with power transmission shaft is interfered, if chuck rotation direction drives the rotation direction one of jaws clamp with power transmission shaft Cause, then the high-speed rotation of chuck can cause further rotating for power transmission shaft, cause claw clamping workpiece tension, claw and workpiece more Yielding damage；If chuck rotation direction and power transmission shaft drive the rotation direction of jaws clamp conversely, if chuck high speed Rotation can cause the reverse rotation of power transmission shaft, cause workpiece to loosen or even come off, cause personal injury；In addition, by chuck The thread groove of spiral parcel and claw bottom coordinates and drives claw movement, during the long-time use of chuck, parcel or card Thread groove on pawl be all susceptible to abrasion, cause claw move radially interim card, it is asynchronous the problems such as.

For example, Chinese patent literature CN202271117 discloses a kind of full-automatic rotating clamping device, including motor, biography Lever, electric chuck and the turbine box between motor and electric chuck, motor drive claw to move up and down by drive link Dynamic to clamp, drive link passes through turbine box and extend in the electric chuck of turbine box front end, in turbine box, the outside of drive link Turbine is arranged with, the worm screw that turbine is arranged with its bottom is meshed, the master also including reducing motor, on the output shaft of reducing motor Gear drives worm screw rotation, drives turbine rotation, rotates electric chuck.Although the prior art realizes the electronic drive of claw It is dynamic, and drive turbine rotation by reducing motor, drive chuck to rotate, but claw is just moved radially still through motor It is driven reverse drive link positive and negative rotation, however it remains the problem that the rotation of chuck is interfered with the rotation of drive link, occurs passing The situation that dynamic structural failure deformation or workpiece come off.

Utility model content

Therefore, the technical problems to be solved in the utility model be overcome the claw drive mechanism of chuck in prior art with Chuck rotates to exist interferes, and the defect for affecting chuck normally to use is a kind of using stable, not easy to wear so as to provide, not with card Disk rotates to form interference, the more safe and reliable drive mechanism for driving moving member radially to reciprocate in mounting seat.

Further provide for a kind of card of the drive mechanism radially reciprocated in mounting seat with above-mentioned driving moving member Disk.

The technical solution adopted in the utility model is as follows：

A kind of drive mechanism for driving moving member radially to reciprocate in mounting seat, including：Shifting part, can be mounted opposite Seat is rotationally arranged, and the axial direction in the radial direction and mounting seat of the moving member by corresponding to the shifting part is determined Rotation with surface, and connect with the corresponding moving member；Drive component, thereon with consistent with shifting part distribution Shifting part connecting portion, the shifting part are hinged with the corresponding shifting part connecting portion, and the drive component is along mounting seat During axial direction back and forth movement, drive the shifting part to rotate and drive the moving member back and forth to move along the radial direction of the mounting seat It is dynamic.

The drive component includes the telescoping mechanism with telescopic shaft, and the shifting part being arranged on the telescopic shaft connects Binding structure, the shifting part connecting portion are arranged in the shifting part attachment structure, and the telescopic direction of the telescopic shaft is along peace The axial direction of dress seat is arranged.

The shifting part is the shift fork with the two shift fork arms for being mutually angle setting, the first shift fork arm of the shift fork and institute Moving member connection is stated, the second shift fork arm of the shift fork is connected with the shifting part connecting portion.

The shifting part connecting portion includes being molded in the shifting part attachment structure, is adapted to the second shift fork arm and inserts The second draw-in groove for entering, the second shift fork arm are coordinated for gap with second draw-in groove.

The moving member is provided with the first draw-in groove, and the first shift fork arm of the shift fork is stretched in first draw-in groove and driven The dynamic moving member movement, the first shift fork arm are coordinated for gap with first draw-in groove.

The mounting seat includes the card for being provided with the moving member, and the supporting side walls of support card, the support Side wall is provided with support bar, and the length direction of the support bar extends along the radial direction of corresponding moving member, described to stir Part is rotatably installed on the support bar.

The telescoping mechanism is electric cylinder.

A kind of chuck, including claw, at least two；Chuck body, forms the radial slot for being distributed in card, each described footpath A claw is provided with into groove, and claw described at least two forms clamp port near the one end at the center of the chuck body, The claw can be moved back and forth along the radial slot, to adjust the size of the clamp port bore；And described driving is moved The drive mechanism that moving part is radially reciprocated in mounting seat, wherein described moving member are the claw, and the mounting seat is institute State chuck body.

Also include chuck seat, form opening up installation cavity, the chuck body is rotationally closed in the opening Place, below the chuck seat, the lower surface of the chuck seat is provided with and is suitable to wear the telescoping mechanism of the drive component If the axis hole of the telescopic shaft, the shifting part attachment structure is in the installation intracavity, and the shifting part attachment structure can turn The telescopic shaft is arranged at dynamicly stretches into the end for installing intracavity；

Rotation drive structure, drives the chuck body to rotate relative to the chuck seat.

The shifting part attachment structure is rotatably connected on the telescopic shaft by turning round connector, and the revolution connects Axial one end of fitting forms the axis hole for being adapted for insertion into the telescopic shaft, and the axis hole is interference fit with the telescopic shaft； The other end forms dop or draw-in groove, the shifting part attachment structure and the revolution connector connect one end it is corresponding form with The dop or draw-in groove coordinate the draw-in groove or dop of clamping.

The rotation drive structure includes along the circumferentially disposed gear structure in the chuck body lateral wall, and with the tooth The motor gear that wheel construction engagement coordinates.

Connected by floating bearing between the chuck body and the chuck seat.

The claw is three.

The claw is positive pawl, or is anti-pawl.

The claw is stepped ramp type.

Technical solutions of the utility model, have the advantage that：

1. what this utility model was provided drives the drive mechanism that radially reciprocates in mounting seat of moving member, with can Along the drive component of the axial direction back and forth movement of mounting seat, and under the driving of the drive component, can be by setting Allocate rotation in surface and then drive the moving member along the shifting part that moves back and forth of radial direction of mounting seat, the setting plane is by this The radial direction and the axial direction of mounting seat that moving member corresponding to shifting part is located is determined, compared to traditional dependence The spiral parcel of chuck coordinates the mode for driving claw movement with the thread groove of claw bottom, do not appear in chuck it is long when Between during use, the thread groove abrasion on parcel or claw, cause claw move radially interim card, it is asynchronous the problems such as, machine The tool kind of drive is more reliable and more stable；In addition, this type of drive is also different from traditional rotary shaft type of drive, by driving group The stretching motion of part is converted to rotating and then realizing the radial direction push-and-pull to moving member, the drive component machine driving mistake for shifting part Journey is simple and reliable, and in the case where the telescopic shaft of telescoping mechanism and the relative position of chuck body are constant, telescopic shaft can not be with peace Dress seat is synchronized with the movement, and need to be only rotatably carrying for mounting seat by axially coming and going the position that can control moving member along mounting seat Necessary basis are supplied, even if mounting seat is rotatable setting, the driving process of moving member also will not be interfered by the rotation of mounting seat, Position accurate stable of the moving member in mounting seat in achievable mounting seat rotation process, do not move, or moving member still is able to Radial direction along mounting seat is moved back and forth.

2. the drive mechanism that the driving moving member that this utility model is provided radially is reciprocated in mounting seat, it is described to stir Part is the shift forks with the two shift fork arms for being mutually angle setting, and two shift fork arms are connected to the moving member and described stir Part connecting portion, is driven by telescoping mechanism, and shifting part connecting portion drives the second shift fork arm of shift fork along mounting seat axial direction back and forth movement Move along certain track, rotation of the shift fork in setting plane, the first shift fork arm are moved along certain track, promote moving member along peace The radial direction of dress seat is moved back and forth, and the design structure of shift fork is simple, easy for installation, low cost, is easy to maintenance to change.

3. the drive mechanism that the driving moving member that this utility model is provided radially is reciprocated in mounting seat, mounting seat Supporting side walls are provided with support bar, and the shifting part is rotatably installed on the support bar, and support bar is not only that shift fork is carried For supporting, prevent the first shift fork arm from coming off from the draw-in groove of moving member, and the rotation for shift fork provides fulcrum, it is ensured that shift fork exists Setting rotation with surface, to stir moving member motion.

4. the drive mechanism that the driving moving member that this utility model is provided radially is reciprocated in mounting seat, telescopic machine Structure is electric cylinder, for electric cylinder is compared to pneumatic or hydraulic cylinder, is more suitable for, Huo Zhemi high to working environment purity requirements Use under seal ring border, it is reliable and stable.

5. the chuck that this utility model is provided, including chuck body, the claw in card, and the driving moving member The drive mechanism radially reciprocated in mounting seat, drive mechanism drive claw along card footpath under the driving of flexible power To movement, the clamp port formed by claw is used for clamping workpiece or instrument, this to drive claw motion by the drive mechanism Chuck, is different from traditional dependence drive rod rotation and drives the spiral parcel in chuck to rotate and then drive the transmission of claw motion Mode, in the case where the relative position of telescopic shaft and the chuck body of the telescoping mechanism of the drive mechanism is constant, telescopic shaft can be with Be not synchronized with the movement with chuck body, only need to by along chuck axis to back and forth movement can control claw position, be turning for chuck It is dynamic to provide necessary basis.

6. the chuck that this utility model is provided, also includes to relatively rotate the chuck seat of setting, chuck physical ability with chuck body Hard to bear rotation drive structure drives, and rotates relative to chuck seat, and the shifting part attachment structure is rotatablely arranged at described stretching Contracting shaft extension enters the end for installing intracavity so that shifting part and shifting part attachment structure can with claw with chuck synchronous axial system, And telescopic shaft need not be rotated with chuck, in chuck rotation process, telescoping mechanism stops stretching, as shifting part, shifting part connect Without relative motion between binding structure and claw, position of the claw on chuck is not stably moved, it is ensured that the clamp port institute of claw The workpiece or instrument of clamping is solid and reliable, it is to avoid clamping tension or lax institute that in chuck rotation process, the movement of claw is caused Caused problem.

Description of the drawings

In order to be illustrated more clearly that this utility model specific embodiment or technical scheme of the prior art, below will be right Needed for specific embodiment or description of the prior art, accompanying drawing to be used is briefly described, it should be apparent that, describe below In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, can be with according to these other accompanying drawings of accompanying drawings acquisition.

Fig. 1 is that what is provided in embodiment of the present utility model drive the drive that moving member radially reciprocated in mounting seat The three-dimensional view of motivation structure；

Fig. 2 is the three-dimensional view of the chuck provided in embodiment of the present utility model two；

Fig. 3 is the sectional view at A in Fig. 2.

Description of reference numerals：

1- claws；2- chuck bodies；3- shift forks；31- the first shift fork arms；32- the second shift fork arms；4- shifting part attachment structures； 41- shifting part connecting portions；5- turns round connector；6- telescopic shafts；7- telescoping mechanisms；8- chuck seats；9- motor gears.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is a part of embodiment of this utility model, rather than the embodiment of whole.Based on the embodiment in this utility model, this The every other embodiment obtained under the premise of creative work is not made by field those of ordinary skill, belongs to practical Novel protected scope.

In description of the present utility model, it should be noted that term " " center ", " on ", D score, "left", "right", " perpendicular Directly ", the orientation of the instruction such as " level ", " interior ", " outward " or position relationship are, based on orientation shown in the drawings or position relationship, to be only For the ease of describe this utility model and simplify description, rather than indicate or imply indication device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.

In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly Connection；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in this utility model.

As long as additionally, technical characteristic involved in this utility model different embodiments disclosed below is each other Do not constitute conflict can just be combined with each other.

Embodiment one

Fig. 1 is that what is provided in embodiment of the present utility model drive the drive that moving member radially reciprocated in mounting seat The three-dimensional view of motivation structure, as described in Figure 1, the drive that the driving moving member that the present embodiment is provided radially is reciprocated in mounting seat Motivation structure, including：Shifting part, can be mounted opposite seat and rotationally arrange, and in the radial direction of the moving member by corresponding to the shifting part Rotation with surface determined by the axial direction of direction and mounting seat, and connect with the corresponding moving member；Drive component, Thereon with the shifting part connecting portion 41 consistent with shifting part distribution, the shifting part is connected with the corresponding shifting part Portion 41 is hinged, and the drive component is when along mounting seat axial direction back and forth movement, drives the shifting part to rotate and drives institute The radial direction that moving member is stated along the mounting seat is moved back and forth.

Coordinate the side for driving claw movement compared to the spiral parcel of traditional dependence chuck and the thread groove of claw bottom Formula, during the type of drive of above-mentioned moving member does not appear in the long-time use of chuck, the thread groove on parcel or claw Abrasion, cause claw move radially interim card, it is asynchronous the problems such as, mechanical drive mode is more reliable and more stable；In addition, above-mentioned The type of drive of moving member is also different from traditional rotary shaft type of drive, and the stretching motion of drive component is converted to shifting part Rotate and then realize radial direction push-and-pull to moving member, the drive component mechanical transmission course is simple and reliable, in telescoping mechanism 7 In the case that telescopic shaft 6 is constant with the relative position of chuck body 2, telescopic shaft 6 can not be synchronized with the movement with mounting seat, need to only pass through The position that can control moving member is axially come and gone along mounting seat, is that the rotatable of mounting seat provides necessary basis, even if installing Seat is rotatable setting, and the driving process of moving member also will not be interfered by the rotation of mounting seat, be capable of achieving mounting seat rotation process Position accurate stable of the middle moving member in mounting seat, do not move, or moving member still is able to back and forth move along the radial direction of mounting seat It is dynamic.

Specifically, the number that the shifting part is arranged is consistent with the number of the moving member, is three, it is preferable that described Shifting part is to include angled setting, the shift fork 3 of two shift fork arms of head and the tail connection, and wherein the first shift fork arm 31 is connected to described Moving member, the second shift fork arm 32 are connected to the shifting part connecting portion 41, and the shifting part connecting portion 41 is arranged on shifting part company On binding structure 4, the shifting part attachment structure 4 is connected to the end of the telescopic shaft 6, the axle of the shifting part attachment structure 4 It is the cylinder for being connected to 6 end of telescopic shaft to one end, forms on the bottom face of cylinder recessed with 6 interference fit of telescopic shaft Groove, the upper surface of cylinder form the radial structure with three tops, and three tops are located in the same horizontal plane, Each top end forms the shifting part connecting portion 41, and the shifting part connecting portion 41 forms and is suitable to the second shift fork arm 32 and inserts The second draw-in groove for entering, the second shift fork arm 32 are coordinated for gap with second draw-in groove；The first draw-in groove is formed on moving member, The first shift fork arm 31 is stretched in first draw-in groove and forms gap with the first draw-in groove and coordinates, the design structure letter of shift fork 3 Single, easy for installation, low cost is easy to maintenance to change；The junction of the first shift fork arm 31 and the second shift fork arm 32 into Type has axis hole, and this axis hole is the center of rotation of the shift fork 3, and the shift fork 3 is installed in rotation on described by this axis hole On support bar, in the present embodiment, the support bar be arranged at it is in the supporting side walls of the mounting seat, and the moving member it is flat Row is arranged, and the number that support bar is arranged is consistent with the number of shift fork 3, forms and be adapted for insertion into shift fork 3 on each described support bar Center of rotation open slot, and through open slot cell wall and shift fork 3 axis hole bearing pin, enable shift fork 3 with axis hole Rotated for center of rotation, the setting of support bar is not only that shift fork 3 provides support, prevents the first shift fork arm 31 from moving member Come off in draw-in groove, and the rotation for shift fork 3 provides fulcrum, it is ensured that shift fork 3 is transported with stirring moving member in setting rotation with surface Dynamic, in other embodiments, the support bar can also be arranged at other positions, for example, be arranged at the shifting part attachment structure On 4.

It should be noted that the setting number of the shifting part is in other embodiments, can also be one, two, four It is individual even more many；Shifting part is correspondingly arranged with moving member, and the distribution mode of multiple shifting parts can be to be evenly distributed, parallel point Cloth, into angle distribution etc.；The shape of the shifting part is not limited to shift fork 3, and can also be can be in the radial direction of moving member And the other shapes of rotation with surface determined by the axial direction of mounting seat, such as ellipticity, triangle etc.；In addition, In other embodiment, the second shift fork arm 32 with the connected mode of the shifting part connecting portion 41 can also be, described to stir Part connecting portion 41 forms the open slot for being suitable to the insertion of the second shift fork arm 32, is equipped with bearing pin, the second shift fork arm 32 in open slot Outer end form the bar hole for extending along its length, coordinated by the gap of bar hole and bearing pin, make the second shift fork arm 32 are articulated with shifting part connecting portion 41.

Further, the telescoping mechanism 7 is the electric cylinder with telescopic shaft 6, electric cylinder compared to cylinder and hydraulic cylinder, Source of the gas and hydraulic power source is not needed, stable drive, noise are low, and impact shock is little, and the impact to transmission component is little, clean hygiene, solution Determine race, the leakage problem of cylinder and hydraulic cylinder, it should be noted that the telescoping mechanism 7 is not limited to electric cylinder, in other realities Apply in example, it is also possible to cylinder or hydraulic cylinder is selected according to specific manufacturing cost, handling characteristicss etc., or other can provide The drive mechanism of flexible power.

The course of action of the drive mechanism that the driving moving member provided by the present embodiment is radially reciprocated in mounting seat As follows, electronic cylinder working drives telescopic shaft 6 along the axially extended of mounting seat, drives shifting part attachment structure 4 along the axle of mounting seat To moving upwards, drive the second shift fork arm 32 to move so that shift fork 3 is rotated up in setting plane, drive the first shift fork arm 31 Radial outward movement of the moving member along mounting seat is stirred, clamp port expands；On the contrary, electronic cylinder working drives telescopic shaft 6 along mounting seat Axial retraction, drive shifting part attachment structure 4 along the axial downward movement of mounting seat, drive the second shift fork arm 32 to move so that Shift fork 3 is rotated down in setting plane, is driven the first shift fork arm 31 to stir moving member and is inwardly moved along the footpath of mounting seat, clamp port Reduce.

Embodiment two

Fig. 2 is the three-dimensional view of the chuck provided in embodiment of the present utility model two；Fig. 3 is the section view at A in Fig. 2 Figure, as shown in Figures 2 and 3, the chuck that the present embodiment is provided, including at least two claws 1；Chuck body 2, forms and is distributed in card Radial slot, be provided with a claw 1 in each described radial slot, described at least two, claw 1 is near the chuck body 2 The one end at center forms clamp port, and the claw 1 can be moved back and forth along the radial slot, to adjust the clamp port bore Size；And the drive mechanism that the driving moving member described in embodiment one is radially reciprocated in mounting seat, it is wherein described Moving member is the claw 1, and the mounting seat is the chuck body 2.

The drive mechanism drives claw 1 to move radially along card under the driving of flexible power, what claw 1 was formed Clamp port is used for clamping workpiece or instrument, this chuck for driving the motion of claw 1 by the drive mechanism, be different from it is traditional according to The spiral parcel in chuck is driven to rotate and then drive the kind of drive of the motion of claw 1 by drive rod rotation, in the drive mechanism Telescoping mechanism 7 telescopic shaft 6 it is constant with the relative position of chuck body 2 in the case of, telescopic shaft 6 can not be same with chuck body 2 Step motion, only need to by along chuck axis to back and forth movement can control claw 1 position, be that rotatable the providing of chuck must Will basis.

Specifically, the chuck body 2 includes card and supports the supporting side walls of card, and radial slot is along the disk body It is radially arranged, and is uniformly distributed in the cell body of card, the claw 1 is disposed as three with the radial slot, each radial slot Along arranging through card perpendicular to card direction, on the cell wall of radial slot, correspondence forms the slide rail for radially extending, claw 1 Chute is formed on the wall of side at the correspondence slide rail, the claw 1 realizes which along chuck by chute being slidably matched in slide rail Radial direction move back and forth, to adjust the size of the clamp port bore.

Further, the chuck also includes to relatively rotate the chuck seat 8 of setting, 8 one-tenth of the chuck seat with chuck body 2 Type has opening up installation cavity, and the chuck body 2 is rotationally closed at the opening, and the described of the drive component stretches Below the chuck seat 8, the lower surface of the chuck seat 8 is provided with the axis hole for being suitable to wear the telescopic shaft 6 for contracting mechanism 7, The shifting part attachment structure 4 is in the installation intracavity, and the shifting part attachment structure 4 is rotatablely arranged at described flexible Axle 6 stretch into it is described install intracavity end, form on the bottom surface of the claw 1 opening surpass to the installation cavity, be suitable to insert Enter the draw-in groove of the first shift fork arm 31.

Specifically, the shifting part attachment structure 4 is rotatably connected on the telescopic shaft 6 by turning round connector 5, Axial one end of the revolution connector 5 forms the axis hole for being adapted for insertion into the telescopic shaft 6, the axis hole and the telescopic shaft 6 is interference fit；The other end forms dop or draw-in groove, and the shifting part attachment structure 4 is connected one with the revolution connector 5 End correspondence forms the draw-in groove or dop for coordinating clamping with the dop or draw-in groove, prevents the revolution connector 5 with described group There is axially opposing displacement in moving part attachment structure 4.

Chuck body 2 can be driven by rotation drive structure, rotated relative to chuck seat 8, the shifting part attachment structure 4 It is rotatablely arranged at the telescopic shaft 6 and stretches into the end for installing intracavity so that shift fork 3 can with shifting part attachment structure 4 With claw 1 with chuck synchronous axial system, and telescopic shaft 6 is without the need for chuck rotation, in chuck rotation process, telescoping mechanism 7 stops It is flexible, as between shift fork 3, shifting part attachment structure 4 and claw 1, without relative motion, position of the claw 1 on chuck is stably not It is mobile, it is ensured that the workpiece or instrument clamped by the clamp port of claw 1 is solid and reliable, it is to avoid claw 1 in chuck rotation process The clamping tension that causes of movement or lax institute caused by a problem.

Further, connected by floating bearing between the chuck body 2 and the chuck seat 8, described rotation drives knot Structure is included along the circumferentially disposed gear structure in 2 lateral wall of the chuck body, and engages the motor for coordinating with the gear structure Gear 9, it should be noted that in other embodiments, the rotation drive structure can also be turbine and worm drive mechanism, or Person is chain driving structure etc..

Further, the claw 1 is positive pawl, and in stepped ramp type, claw 1 is along 2 radial contraction of chuck body clamping workpiece Or instrument, radial dilatation is discharging workpiece or instrument, it should be pointed out that in other embodiments, the claw 1 can be anti- Pawl, claw 1 along 2 radial contraction of chuck body to discharge workpiece or instrument, radial dilatation to fix workpiece or instrument, claw 1 in addition Shape be also not necessarily limited to as stepped ramp type, can also be rectangle or other shapes.

The chuck that the present embodiment is provided, its course of action are as follows, and electronic cylinder working drives telescopic shaft 6 along the axial direction of mounting seat Retract, shifting part attachment structure 4 is driven along the axial downward movement of mounting seat, drive the second shift fork arm 32 to move so that shift fork 3 Rotate down in setting plane, drive the first shift fork arm 31 to stir moving member and inwardly move along the footpath of mounting seat, clamp port reduces Instrument is crossed to clamp workpiece, now motor gear 9 receives motor-driven rotation, the gear knot circumferentially disposed with 2 lateral wall of chuck body Structure engagement coordinate, drive chuck body 2 rotate relative to chuck seat 8, due to shifting part attachment structure 4 it is rotatable with telescopic shaft 6 Connection so that shifting part attachment structure 4 and shifting part can be with 2 synchronous axial systems of chuck body, you can realize the work clamped by claw 1 The rotation of part or instrument, makes the applicable cases of chuck obtain bigger extension, it is adaptable to more kinds of work requirements；On the contrary, motor Gear 9 stops operating, and chuck body 2 stops operating, and telescopic shaft 6 is retracted downwards, drives claw 1 to discharge clamped workpiece or instrument.

It should be noted that in other embodiments, the flexible of telescopic shaft 6 can be carried out simultaneously with the rotation of chuck body 2, with While realizing that chuck body 2 is rotated, claw 1 can be moved radially.

Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or Change.There is no need to be exhaustive to all of embodiment.And thus it is extended obvious change or Among changing the protection domain created still in this utility model.

Claims (15)

1. the drive mechanism that a kind of driving moving member is radially reciprocated in mounting seat, it is characterised in that include：

Shifting part, can be mounted opposite seat and rotationally arrange, and the moving member by corresponding to the shifting part radial direction and Rotation with surface determined by the axial direction of mounting seat, and connect with the corresponding moving member；

Drive component, thereon with the shifting part connecting portion (41) consistent with shifting part distribution, the shifting part with it is corresponding Shifting part connecting portion (41) be hinged, and the drive component is when along mounting seat axial direction back and forth movement, drives institute Stating shifting part rotation drives the moving member to move back and forth along the radial direction of the mounting seat.

2. the drive mechanism that driving moving member according to claim 1 is radially reciprocated in mounting seat, its feature exist In the drive component includes the telescoping mechanism with telescopic shaft (6) (7), and is arranged on stirring on the telescopic shaft (6) Part attachment structure (4), shifting part connecting portion (41) are arranged on shifting part attachment structure (4), and the telescopic shaft (6) telescopic direction is arranged along the axial direction of mounting seat.

3. the drive mechanism that driving moving member according to claim 2 is radially reciprocated in mounting seat, its feature exist In the shifting part is with two shift forks (3) for being mutually the shift fork arms that angle is arranged, the first shift fork arm of shift fork (3) (31) it is connected with the moving member, the second shift fork arm (32) of shift fork (3) is connected with shifting part connecting portion (41).

4. the drive mechanism that driving moving member according to claim 3 is radially reciprocated in mounting seat, its feature exist In described shifting part connecting portion (41) include being molded on shifting part attachment structure (4), are adapted to second shift fork The second draw-in groove that arm (32) is inserted, the second shift fork arm (32) are coordinated for gap with second draw-in groove.

5. the drive mechanism that driving moving member according to claim 3 is radially reciprocated in mounting seat, its feature exist In the moving member is provided with the first draw-in groove, and the first shift fork arm (31) of shift fork (3) are stretched in first draw-in groove The moving member movement is driven, the first shift fork arm (31) are coordinated for gap with first draw-in groove.

6. the driving machine that the driving moving member according to any one of claim 1-5 is radially reciprocated in mounting seat Structure, it is characterised in that the mounting seat includes the card for being provided with the moving member, and the supporting side walls of support card, institute State supporting side walls and be provided with support bar, and the length direction of the support bar extends along the radial direction of corresponding moving member, institute State shifting part to be rotatably installed on the support bar.

7. the driving machine that the driving moving member according to any one of claim 2-5 is radially reciprocated in mounting seat Structure, it is characterised in that described telescoping mechanism (7) are electric cylinder.

8. a kind of chuck, including：

Claw (1), at least two；

Chuck body (2), forms the radial slot for being distributed in card, is provided with one claw (1), extremely in each described radial slot Few two claw (1) forms clamp port near the one end at the center of the chuck body (2), and claw (1) can be along institute State radial slot to move back and forth, to adjust the size of the clamp port bore；

Characterized in that, also including that the driving moving member any one of claim 1-7 radially comes and goes shifting in mounting seat Dynamic drive mechanism, wherein described moving member are the claw (1), and the mounting seat is the chuck body (2).

9. chuck according to claim 8, it is characterised in that also include

Chuck seat (8), forms opening up installation cavity, and chuck body (2) are rotationally closed at the opening, institute Stating drive component includes the telescoping mechanism with telescopic shaft (6) (7), and the shifting part being arranged on the telescopic shaft (6) connects Binding structure (4), shifting part connecting portion (41) are arranged on shifting part attachment structure (4), the institute of the drive component Telescoping mechanism (7) is stated below the chuck seat (8), the lower surface of chuck seat (8) is provided with and is suitable to wear described stretching The axis hole of axle (6), described shifting part attachment structure (4) are in the installation intracavity, and shifting part attachment structure (4) are rotatable Be arranged at the telescopic shaft (6) stretch into it is described install intracavity end；

Rotation drive structure, drives chuck body (2) to rotate relative to the chuck seat (8).

10. chuck according to claim 9, it is characterised in that described shifting part attachment structure (4) are by turning round connector (5) it is rotatably connected on the telescopic shaft (6), axial one end of revolution connector (5) forms and is adapted for insertion into institute The axis hole of telescopic shaft (6) is stated, the axis hole is interference fit with the telescopic shaft (6)；The other end forms dop or draw-in groove, institute State form corresponding with described revolution connector (5) connection one end of shifting part attachment structure (4) to coordinate with the dop or draw-in groove The draw-in groove or dop of clamping.

11. chucks according to claim 9, it is characterised in that the rotation drive structure is included along the chuck body (2) The circumferentially disposed gear structure in lateral wall, and the motor gear (9) for coordinating is engaged with the gear structure.

12. chucks according to any one of claim 9-11, it is characterised in that chuck body (2) and the chuck Connected by floating bearing between seat (8).

13. chucks according to any one of claim 8-11, it is characterised in that described claw (1) is three.

14. chucks according to any one of claim 8-11, it is characterised in that described claw (1) be positive pawl, Huo Zhewei Anti- pawl.

15. chucks according to any one of claim 8-11, it is characterised in that described claw (1) is stepped ramp type.