CN206561282U - A kind of fixture - Google Patents

Abstract

The utility model discloses a kind of fixture, it is long for solving fixture of the prior art holding time in replacing, the amount of labour is big, and limit the technical problem to the processing mode of workpiece, fixture disclosed in the utility model includes chuck and fixed plate, wherein, chuck includes chuck body and chuck base, fixed plate includes faying face, the bottom surface relative with faying face and at least four sides, side can be clamped by including a pair at least four side, this pair can clamp side and be plane and be parallel to each other, and it is fastenedly connected between chuck and fixed plate by being fastenedly connected between chuck base and faying face.

Description

A kind of fixture

Technical field

The utility model is related to mechanical field, more particularly to a kind of fixture.

Background technology

The machining of lathe is the relative motion between cutter and workpiece to realize, it includes main motion, feeding Motion and incision motion.The motion that main motion plays a major role when being and peeling off excess stock from workpiece blank, it can be work Rotary motion, the rotary motion of linear motion or cutter or the linear motion of part；Feed motion is that cutter and workpiece are treated Processing department point is moved towards, shifting of the knife rest slide carriage along machine tool guideway during the motion, such as size for enabling cutting to proceed Move；Incision motion is the motion for making cutter cut workpiece surface certain depth, and its effect is from work in each cutting stroke Small tool is cut transversely into motion when part surface cuts certain thickness material, such as size.

Either any mode in machine tooling, all can act power to workpiece to be processed, make the position of workpiece Put and change, cause the element precision that processes not high or part rejection, thus during machine tool processing workpiece, it is necessary to Workpiece is reliably fixed, prevents the position of workpiece from changing, to improve the precision and yield rate of work pieces process.

In the prior art, universal fixturing vice is installed with fixed workpiece to be processed on lathe, but vice can only be consolidated Fixed square workpiece, and easily the surface tear of workpiece.Thus processing other shapes of workpiece or machining accuracy It is required that during higher workpiece, in addition it is also necessary to the auxiliary of other fixtures, now usually require first to disassemble the vice on lathe, then pacify Other fixtures are loaded onto, the clamping by vice to other fixtures, and realize the clamping to workpiece by other instruments.For example, When processing the rotary parts such as cylinder, clamping is carried out usually using chuck, because chuck is typically to be carried out using fastener Fixed, it is necessary to first the vice on lathe is disassembled, then chuck is fixed on platen with fasteners such as screws, And then revolving parts are gripped by chuck again.

It can be seen that, in the prior art, process holding time length, the amount of labour for changing fixture are big, bring cumbersome to operator Operating procedure.Also, the side wall of rotary part can not be processed using this kind of fixed form, if desired for processing back Class feature side-wall is turned, then needs to use 5-axis machining center to process, does not meet the economy of processing.

Utility model content

Based on above-mentioned consideration, the utility model provides a kind of fixture, and the fixture can directly be clamped on vice real Now fix, for solving to need in the prior art during processing revolving body workpieces replacing chuck, Renewal process holding time length, work Amount is big, and the technical problem being restricted to the processing mode of workpiece.

The utility model provides a kind of fixture, and the fixture includes：

Chuck, including chuck body and chuck base；

Fixed plate, the fixed plate includes faying face, the bottom surface relative with the faying face and at least four sides, described At least four sides, which include a pair, can clamp side, and the pair of side that clamps is plane and is parallel to each other；

Wherein, connected between the chuck and the fixed plate by the fastening between the chuck base and the faying face Connect and be fastenedly connected.

Optionally, being fastenedly connected between the chuck base and the faying face is fastenedly connected or removable to be non-dismountable Unload and be fastenedly connected.

Optionally, the chuck also includes multiple first fixing holes through the chuck base, and the fixed plate is also Multiple second fixing holes including being opened in the faying face, the multiple first fixing hole and the multiple second fixing hole Quantity is equal and position is adapted, for fastener to be anchored on or pulled out in corresponding first fixing hole and the second fixing hole To realize being detachably fastenedly connected between the chuck and the fixed plate.

Optionally, the multiple second fixing hole is counterbore, when the chuck is fastenedly connected with the fixed plate, institute Stating the upper aperture of multiple second fixing holes ensures that corresponding each fastener can sink to the inside of the fixed plate.

Optionally, the fixed plate also includes projection, the chuck base also include it is recessed, by will be described raised embedded Or extract described recessed detachable being fastenedly connected with realize between the chuck and the fixed plate out.

Optionally, the fixed plate also includes through hole, and the through hole is run through by the faying face and the bottom surface The fixed plate.

Optionally, the raised axis is identical with the axis of the through hole.

Optionally, the pair of clamp is equipped with anti-skid structure on side.

Optionally, it is the pair of to clamp the diameter that the distance between side is more than the chuck base.

Optionally, at least four sides and bottom surface are plane, and the bottom surface is regular polygon, the plane perpendicular In described at least four sides.

Fixture provided by the utility model, including chuck and fixed plate, are fastenedly connected between chuck and fixed plate, pass through Chuck section in fixture, the fixture can directly clamp rotary part, and fix plate part with least four sides, Side can be clamped including a pair, this pair can clamp side and be plane and be parallel to each other, thus by lathe The fixture such as vice can directly clamp this pair and can clamp side, and then realize the mesh being rapidly secured at the fixture on lathe 's.The fixation procedure of whole fixture is very convenient, the easy to operate and saving time, is being frequently necessary to process different types of part Shi Youqi is convenient.

Simultaneously as it is plane that a pair of the fixture, which can clamp side, can be using arbitrary folder when fixing the fixture Angle is held, by using different claming angles, enables to the rotary part being fixed on the fixture to have arbitrary Machining angle, multiple faces of workpiece can be processed in the case where not being improved in itself to lathe, for example, can be processed back The side of class part is turned, and then improves operating efficiency.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is the utility model embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also To obtain other accompanying drawings according to the accompanying drawing of offer.

Fig. 1 is the schematic perspective view of fixture in the utility model embodiment；

Fig. 2 is the schematic top plan view of fixture in the utility model embodiment；

Fig. 3 is the schematic side view of fixture in the utility model embodiment；

Fig. 4 is the elevational schematic view of the chuck in fixture in the utility model embodiment；

Fig. 5 is the schematic perspective view of the fixed plate in fixture in the utility model embodiment；

Fig. 6 is the schematic top plan view of the fixed plate in fixture in the utility model embodiment；

Fig. 7 is the schematic side view of the fixed plate in fixture in the utility model embodiment.

Embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to The scope of the utility model protection.

In addition, the terms "and/or", only a kind of incidence relation for describing affiliated partner, represents there may be Three kinds of relations, for example, A and/or B, can be represented：Individualism A, while there is A and B, these three situations of individualism B.Separately Outside, character "/" herein, it is a kind of relation of "or" to typically represent forward-backward correlation object.

The fixture referred in Fig. 1-Fig. 3, the utility model embodiment includes chuck 100 and the two parts of fixed plate 200, It is fastenedly connected between chuck 100 and fixed plate 200.

Continuing with referring to Fig. 1-Fig. 3, chuck 100 is used for the work to be processed that is fixedly clamped in the utility model embodiment Part, a Workpiece clamping, positioning are moved radially using the movable jaw being distributed on chuck 100.According to different service conditions Be actually needed, different types of chuck 100 can be used.For example, different according to the power mode of the driving upper clipping claw of chuck 100 During distinguishing, chuck 100 can be the air spider using pneumatic mode, or using the oild chuck of hydraulic way, Can also be conventional hand chuck, chuck 100 uses hand chuck in the description below of the utility model embodiment As an example.In another example, distinguished according to the quantity difference of the upper clipping claw of chuck 100, chuck 100 can include two-jaw(ed)chuck, three , can be by adjusting four paws when dog chuck, chuck, six dog chucks and special chuck etc., such as chuck 100 are chuck Position, the various rectangles of clamping, irregular workpiece, in another example when chuck 100 is scroll chuck, chuck 100 has automatic Centering function, is generally used for fixing rotary part, and chuck 100 uses three in the description below of the utility model embodiment Dog chuck is as an example.

Fig. 1 and Fig. 4 are referred to, chuck 100 is divided into chuck body 101 and the two parts of chuck base 102 again, specifically, Chuck body 101 is used to fix workpiece to be processed, and chuck base 102 and other parts act synergistically chuck 100 itself Fix.

Fig. 5-Fig. 7 is referred to, fixed plate 200 is used for and other parts or device collaboration work in the utility model embodiment It is fixed, specifically, is gripped fixed plate 200 for example with the vice on lathe with by fixture itself, due to solid It is fastenedly connected between fixed board 200 and chuck 100, realizes the purpose being fixed on whole fixture on lathe.In the utility model In embodiment, fixed plate 200 has higher wearability and intensity, is not deformed upon during being maintained at processing workpiece Or the deformation only in generation allowed band, it is that this fixed plate 200 can be higher using thicker sheet material and/or hardness, intensity Material is made, such as the making material of the fixed plate 200 in the utility model embodiment uses 45# steel and is quenched to HRC35 For a kind of feasible scheme.Meanwhile, width, length and the thickness of fixed plate 200 in the range of vice permission and can block Disk 100 is adjusted in the range of allowing, but the thickness of fixed plate 200 should be guaranteed that fixed plate 200 can be by vice stabilization clamp Hold.In addition, when the length and width of fixed plate 200 is bigger, generally for ensureing that fixed plate 200 is not deformed upon when processing workpiece Or the deformation only in generation allowed band is, it is necessary to using bigger thickness.It is a width of for example when 200 a length of 200 millimeters of fixed plate At 200 millimeters, thickness is set as that 40 millimeters are a kind of feasible scheme.

Fixed plate 200 includes faying face 201, bottom surface 202 and at least four side relative with faying face 201 203, by taking Fig. 1 as an example as, for example, fixed plate 200 can be regarded to a cuboid, then bottom surface 202 is then and the phase of faying face 201 To face, due to angle, in Fig. 1 and other accompanying drawings bottom surface 202 is not illustrated.Wherein, faying face 201 It is fastenedly connected for engaging and realizing with chuck base 102, being fastenedly connected based on faying face 201 and chuck base 102, chuck 100 and fixed plate 200 realize and be fastenedly connected.When being fastenedly connected faying face 201 and chuck base 102, the He of faying face 201 Chuck base 102 can be fully engaged.Meanwhile, in the utility model embodiment, including a pair at least four sides 203 can Clamping side, this pair can clamp side and be plane and be parallel to each other, that is to say, that the vice on lathe can directly clamp this It pair can clamp side and realize stable holding to fixed plate 200, and then realize the fixture being fixed on and realize and clamp back on lathe The purpose that swivel class part is processed.

Further, since it is plane that a pair of the fixture, which can clamp side, can be using any when vice fixes the fixture Claming angle, by using different claming angles, enable to the workpiece being fixed on the fixture that there is arbitrary processing Angle, multiple faces of workpiece can be processed in the case where not being improved in itself to lathe.Specifically, fixed plate 200 It can be rotated in the fore-and-aft plane of vice folder groove formation to select or adjust different claming angles.

Optionally, in the utility model embodiment, this pair can be clamped can be provided with anti-skid structure on side, for example Nonskid coating is scribbled, or is carved with anti-slip veins, to increase frictional force and then the increase during vice gripping and fixed plate 200 between the two Chucking power to be to realize stable clamping, it is to avoid because fixed plate 200 fixes unstable, the process in processing workpiece is avoided as far as possible The situation of middle defective work piece occurs.In specific implementation process, anti-slip veins can be for striped, ripple glaze or with other patterns Lines, number and shape to anti-slip veins in the utility model embodiment are not limited.In addition, the anti-slip veins can be made Integrally compressing or by milling during fixed plate 200, the anti-slip veins can also use other materials Being attached at this pair can be clamped on side, and the production method of anti-slip veins is not also limited in the utility model embodiment.

In a kind of possible embodiment, in the utility model embodiment, this pair can clamp the distance between side, I.e. this pair can clamp any meaning of taking up an official post sideways that clamps in side can a little clamp the vertical line section of side place plane to another Length, can be more than chuck base 102 diameter, when being so able to ensure that vice gripping and fixed plate 200, be unlikely to be clamped to Chuck 100 positioned at the top of fixed plate 200, and then the surface of the workpiece to be processed to being fixed in chuck 100 can be avoided to make Into scratching or other damages.In a kind of feasible scheme, when fixed plate 200 is fixedly connected with chuck 100, chuck base 102 Border of the border without departing from faying face 201, that is to say, that the lateral cross section of fixed plate 200 on area be more than chuck bottom Seat 102.

Optionally, in the utility model embodiment, being fastenedly connected between chuck base 102 and faying face 201 can be with It is fastenedly connected or is detachably fastenedly connected to be non-dismountable.

A kind of optional embodiment, when being fastenedly connected between chuck base 102 and faying face 201 using non-removable When, fixed plate 200 is combined into an independent entirety with chuck 100, specifically, can be when making the fixture, just by admittedly Fixed board 200 and the milling of chuck 100 are integrated, and are either welded as a whole or use adhesive by fixed plate 200 and chuck 100 Fixed plate 200 and chuck 100 are fastenedly connected, it is without limitation in the utility model embodiment.It is non-disconnectable using this kind Unload when being fastenedly connected, vice clamps the stabilization of the fixture more, the manufacture craft of fixture and spends also less.

Another optional embodiment, is removably fastenedly connected when being used between chuck base 102 and faying face 201 When, it can be fastenedly connected between chuck base 102 and faying face 201 using fastener, or using the detachable side such as snap-in structure Chuck base 102 is fastenedly connected by formula with faying face 201.Using this kind it is dismountable be fastenedly connected when, when only only needing to make In the case of with chuck 100, fixed plate 200 can be unloaded, chuck 100 is used alone, when chuck 100 or fixed plate 200 go out During existing failure, only the part broken down can be changed, it is cost-effective.

In specific implementation process, when being fastenedly connected between chuck base 102 and faying face 201 connects for detachable fastening When connecing, chuck 100 also includes multiple first fixing holes 103 as shown in Figure 4 through chuck base 102, fixed plate 200 Also include being opened in multiple second fixing holes 204 of faying face 201 as shown in Figure 5, multiple first fixing holes 103 with it is multiple The quantity of second fixing hole 204 is equal and position is adapted, and is fixed for being anchored on or pulling out corresponding first by fastener To realize being fastenedly connected between chuck 100 and fixed plate 200 in the fixing hole 204 of hole 103 and second.

In the utility model embodiment, to the shape and particular number of the first fixing hole 103 and the second fixing hole 204 not Limit, be feasible scheme such as screw, square hole.In the utility model embodiment, to the type of fastener also not Limit, as long as it is feasible scheme that can be fastenedly connected chuck 100 and fixed plate 200, such as fastener can be spiral shell Bolt, screw, stud, pin, rivet etc. can play the fastener of fixation.Optionally, multiple first fixing holes 103 and many Individual second fixing hole 204 is screw and fastener is that SOC.HD. cap screw is a kind of feasible scheme.

Wherein, multiple first fixing holes 103 are equal with the quantity of multiple second fixing holes 204 and position is adapted, and refer to When chuck 100 and fixed plate 200 are fastenedly connected, the fixing hole on chuck 100 and fixed plate 200 is to correspond, for example Shown in Fig. 4 and Fig. 7, in the utility model embodiment, with the first fixing hole 103 and the second fixing hole 204 be three and Put corresponding, fastener can intert or be screwed together in the corresponding fixing hole 204 of first fixing hole 103 and second using realize fastening as Example is illustrated.In addition, the arrangement side of the first fixing hole 103 and the second fixing hole 204 on chuck 100 and in fixed plate 200 Formula can be varied, for example, can be the distribution of isometric circle week, matrix distribution etc., when using symmetric form distribution mode, Chuck 100, fixed plate 200, the stress of fastener is enabled to be more uniformly distributed, the fastening between chuck 100 and fixed plate 200 connects Connect robust more.

In addition, pad can also be included in fixture in the utility model embodiment, when chuck base 102 and faying face 201 when being fastenedly connected, and pad is arranged between chuck base 102 and faying face 201, and the pad can also for metallic gasket The pad of high pressure can be born to be other, the pad there can be larger frictional resistance to be used to increase chuck 100 and fixed plate Frictional force between 200, and the problems such as faying face 201 and chuck base 102 not enough or long neglected and in disrepair because of machining accuracy When causing to be fully engaged, the pad can play a part of filling, maintain stabilization between chuck 100 and fixed plate 200 It is fastenedly connected.

Optionally, in the utility model embodiment, multiple second fixing holes 204 are counterbore, when chuck 100 and admittedly When fixed board 200 is fastenedly connected, the upper aperture of the heavy platform of multiple second fixing holes 204 ensures that corresponding each fastener can be sunk to admittedly The inside of fixed board 200, the heavy platform can be the funnel-form of upper decreasing pore size, or with aperture identical post up and down Shape, such as cylindrical shape, or other can enable fastener sink to the shape of fixed plate 200, the utility model embodiment completely Do not limit herein.

Optionally, in the utility model embodiment, when between chuck base 102 and faying face 201 be fastenedly connected for When being detachably fastenedly connected, Fig. 5-Fig. 7 is referred to, fixed plate 200 can also include projection 205, and chuck 100 can also include recessed Enter 104, by by the insertion of projection 205 or extract out recessed 104 can realize it is detachable tight between chuck 100 and fixed plate 200 It is solidly connected.Specifically, projection 205 is prominent from faying face 201, and recessed 104 recess in chuck base 102, projection 205 With recessed 104 shapes and sizes all same, also, when chuck 100 and fixed plate 200 are fixedly connected, raised 205 energy Enough it is completely embedded into recessed 104.When being fixedly connected with chuck 100 and fixed plate 200, the projection 205 that is completely fitted and recessed 104 can play a part of orientation direction and fixation.

In addition, the surface of projection 205 and recessed 104 can be made as the larger surface of frictional force so that be completely fitted Projection 205 can be played with recessed 104 to chuck 100 and fixed plate 200 is preferably fixedly connected with effect.In addition, projection 205 can To be made of somewhat flexible material, now can the size of projection 205 can be slightly larger than recessed 104 size, this Sample can produce bigger fastening force when the insertion of projection 205 recessed 104 by elasticity somewhat.Implement in the utility model In example, projection 205 and recessed 104 can include it is one or more pairs of, when including it is multipair when, projection 205 is arranged at faying face 201 On position can be adapted with recessed 104 positions being arranged on chuck base 102.

Optionally, Fig. 5 and Fig. 7 are referred to, fixed plate 200 can also include through hole 206, and through hole 206 is by combining Fixed plate 200 is run through in face 201 and bottom surface 202.The opening in faying face 201 of through hole 206 can be located at the top of projection 205 Portion, can also be located at the other positions of faying face 201, but it should ensure when chuck 100 is fixedly connected with fixed plate 200, should Opening positioned at faying face 201 can be overlapped with chuck base 102, and when using foregoing fastener realize chuck 100 and When being detachably fastenedly connected of fixed plate 200, the through hole 206 is not overlapped with any one second fixing hole 204.When needs will card When disk 100 and fixed plate 200 are disassembled, can by instruments such as hammer, iron rods from through hole 206 through fixed plate 200 to card Disk 100 applies active force, and chuck 100 and fixed plate 200 are disassembled.

Optionally, in the utility model embodiment, projection 205 can cylinder or regular prism shape, through hole 206 also may be used With cylinder or regular prism shape, the shape of projection 205 and through hole 206 can be the same or different.When projection 205 and runs through When the shape of hole 206 is identical, both shapes can all be cylindrical, square, positive pentagonal prism, positive six prismsby etc..Also, it is convex The axis for playing 205 is identical with the axis of through hole 206, as same straight line, that is to say, that in that case, pass through Perforation 206 is located at the opening of faying face 201 positioned at the top of projection 205, and through hole 206 runs through faying face 201 by bottom surface 202 With projection 205, i.e., now through hole 206 is opened in the inside of projection 205.Also, in the utility model embodiment, through hole 206 radial section is less than the radial section of projection 205 on area.By this kind of scheme, it ensure that and processing the fixture During fixed workpiece, the stress of chuck 100 and fixed plate 200 all more uniform reduce mismachining tolerance and extend folder The service life of tool.

Optionally, in the utility model embodiment, at least four sides 203 and bottom surface 202 are plane, bottom surface 202 Perpendicular at least four sides 203, and bottom surface 202 is regular polygon, is, for example, square or regular hexagon, then fixed plate 200 are square or hexahedron.Now, the logarithm for clamping side in fixed plate 200 is at least four sides 203 The half of quantity.For example, when square is in bottom surface 202, the logarithm for clamping side in fixed plate 200 is two pairs.Make During with vice gripping and fixed plate 200, one pair of which can be arbitrarily selected to be used to clamp.

In addition, in order to ensure the accuracy of workpiece processed during using the fixture, in the utility model embodiment, respectively The dimensional tolerance of position of related features, each part between part all should be less than 0.02 millimeter.

The fixture provided in embodiment of the present utility model, including chuck 100 and fixed plate 200, chuck 100 is with fixing It is fastenedly connected between plate 200, by the part of chuck 100, the fixture can directly clamp rotary part, and fixed plate 200 parts have at least four sides 203, can clamp side including a pair, it is plane and phase that this pair, which can clamp side, It is mutually parallel, thus this pair can directly be clamped by fixtures such as the vices on lathe can clamp side, and then this is pressed from both sides Tool is fixed on lathe.The fixation procedure of whole fixture is very convenient, the easy to operate and saving time, is being frequently necessary to processing not Especially facilitate during congener part.

Further, it is plane that a pair due to the fixture, which can clamp side, can be using any when fixing the fixture Claming angle, by using different claming angles, enable to the rotary part being fixed on the fixture to have and appoint The machining angle of meaning, multiple faces of workpiece can be processed in the case where not being improved in itself to lathe.

Further, the mode that is fixedly connected between the chuck 100 of the fixture and fixed plate 200 can be non-dismountable company Connect mode, or be detachably connected mode, can adapt to a variety of use situations.Mode is detachably fixed when using When, due to the fixture can simultaneously by the way of the first fixing hole 103 and the second fixing hole 204 are fixed by fastener, with And raised 205 fixed forms chimeric with recessed 104 so that between chuck 100 and fixed plate 200 be fixedly connected stably, can Lean on.Also, due to offering through hole 206 in fixed plate 200, disassemble chuck 100 and fixed plate 200 more easy.

Further, the fixture can be being clamped on side provided with anti-slip veins so that vice can be fixed more firmly The fixture.

Obviously, those skilled in the art can carry out various changes and modification without departing from this practicality to the utility model New spirit and scope.So, if these modifications and variations of the present utility model belong to the utility model claim and Within the scope of its equivalent technologies, then the utility model is also intended to comprising including these changes and modification.

Claims (10)

1. a kind of fixture, it is characterised in that the fixture includes：

Chuck, including chuck body and chuck base；

Fixed plate, the fixed plate include faying face, the bottom surface relative with the faying face and at least four sideways, it is described at least Four sides, which include a pair, can clamp side, and the pair of side that clamps is plane and is parallel to each other；

Wherein, by being fastenedly connected between the chuck base and the faying face between the chuck and the fixed plate It is fastenedly connected.

2. fixture as claimed in claim 1, it is characterised in that being fastenedly connected between the chuck base and the faying face It is fastenedly connected or is detachably fastenedly connected to be non-dismountable.

3. fixture as claimed in claim 2, it is characterised in that the chuck is also included through the multiple of the chuck base First fixing hole, the fixed plate also includes multiple second fixing holes for being opened in the faying face, and the multiple first fixes Hole is equal with the quantity of the multiple second fixing hole and position is adapted, corresponding for fastener to be anchored on or pull out Detachable being fastenedly connected with realize between the chuck and the fixed plate in first fixing hole and the second fixing hole.

4. fixture as claimed in claim 3, it is characterised in that the multiple second fixing hole is counterbore, when the chuck When being fastenedly connected with the fixed plate, the upper aperture of the multiple second fixing hole ensures that corresponding each fastener can sink to institute State the inside of fixed plate.

5. fixture as claimed in claim 3, it is characterised in that the fixed plate also includes projection, the chuck base is also wrapped Include recessed, by the way that the projection to be embedded in or extract described recessed detachable between the chuck and the fixed plate to realize out It is fastenedly connected.

6. fixture as claimed in claim 5, it is characterised in that the fixed plate also includes through hole, the through hole passes through The fixed plate is run through in the faying face and the bottom surface.

7. fixture as claimed in claim 6, it is characterised in that the raised axis and the axis phase of the through hole Together.

8. the fixture as described in any claim in claim 1-7, it is characterised in that the pair of to clamp side upper equal Provided with anti-skid structure.

9. the fixture as described in any claim in claim 1-7, it is characterised in that the pair of to clamp between side Distance be more than the chuck base diameter.

10. the fixture as described in any claim in claim 1-7, it is characterised in that at least four sides and bottom Face is plane, and the bottom surface is regular polygon, and the plane perpendicular is in described at least four sides.