CN201231413Y

CN201231413Y - Flexible-positioning rigid-fastening re-orientation connection device

Info

Publication number: CN201231413Y
Application number: CNU2008201503099U
Authority: CN
Inventors: 薛俊伦
Original assignee: SHANGHAI MAIXUN MACHINE TOOL TECHNOLOGY Co Ltd
Current assignee: SHANGHAI MAIXUN MACHINE TOOL TECHNOLOGY Co Ltd
Priority date: 2008-06-30
Filing date: 2008-06-30
Publication date: 2009-05-06
Anticipated expiration: 2018-06-30

Abstract

The utility model relates to a repeated positioning and connecting device for flexible positioning and rigid clamping, which belongs to the technical field of positioning and clamping between a lathe and a work piece in precision machinery manufacture. The device comprises a chuck, a work piece splint and blind rivets, wherein four positioning teeth are radially and uniformly distributed in the circumference of the top surface of the chuck, and four Z-direction motion-stopping surfaces are radially arranged between adjacent positioning teeth; the work piece splint comprises lug bosses, through grooves and blind grooves, wherein the four through grooves are radially and uniformly distributed in the circumference of the top surface of the work piece splint, each lug boss is divided into four parts, the blind grooves are respectively arranged at both sides of each through groove, and a thin wall is arranged between each through groove and each blind groove. When the utility model is in use, the four positioning teeth and the four through grooves are spliced together, the top surfaces of the four lug bosses are tightly attached to the four Z-direction motion-stopping surfaces, and the walls of the blind grooves are flexibly deformed so that the work piece fixed on the work piece splint obtains the flexible positioning and the rigid clamping in the X direction, the Y direction and the Z direction. The utility model has the advantages of high positioning accuracy, good repeated positioning, little abrasion of contact surfaces, strong bearing capability of heavy cutting force, and the like.

Description

Repositioning connection device of positioning for flexibility and fastening for rigidity

Technical field

The utility model relates to a kind of repositioning connection device of positioning for flexibility and fastening for rigidity, the technical field of the positioning clamping during the genus precision optical machinery is made between lathe and workpiece.

Background technology

Jockey is most commonly used to clamp the connector that has one or more workpiece, and workpiece is positioned at the exact position in machine tooling district, and the connector that has workpiece is the carrier or the supporting plate of workpiece, and the connector that is fixed to the machine tooling district is a chuck.

Chinese patent CN1443620A discloses a kind of jockey.This device comprises chuck and the dismountable work rest anchor clamps that are connected on the chuck.The work rest that will have holding pin is fixed in the anchor clamps of chuck, and chuck is provided with centre bore and clamp mechanism, and the former is used to hold holding pin, and the latter is firmly held in holding pin in the centre bore.Centre bore has conical inserting portion, and holding pin has the alignment surface of fitting with described conical inserting portion, is used for the X of work rest or Y to the location.The chuck end face is provided with Z to stop surface, is used for Z to work rest to the location.The problem that this jockey exists is, can only to X or Y in one, just must make up two or more jockeys and use together to location simultaneously as need X, Y to positioning, and the installation requirement height of composite set.Secondly because above-mentioned location is the rigidity location, holding pin and centre bore wearing and tearing are big, do not have adaptation function, so positioning accuracy is not high, make this device be not suitable for use in precision optical machinery processing.

Chinese patent 200410090540-X discloses a kind of jockey.This device comprises chuck and workpiece supporting plate, is provided with three centrepins on the chuck at least, and the workpiece supporting plate is provided with the groove that engages with centrepin.The workpiece supporting plate is connected with chuck in removable lining mode, and detent mechanism and clamp mechanism all are rigidity, can bear certain load.When the workpiece supporting plate is connected with chuck, thus both can work in coordination determine the former with respect to the latter's Z to the position.The width of the centrepin of chuck is less than the groove width of workpiece supporting plate.Therefore be connected with chuck when the workpiece supporting plate, when positioning, the centrepin on the chuck only with the single contacts side surfaces of corresponding groove, gapped between centrepin and the another side, therefore have only four applyings in eight sides of four grooves, this location belongs to the rigidity location, and what will cause locating is uncertain.In addition, centrepin and and the groove side of its applying between frictional force very big, in use will cause the uneven wear of centrepin and groove side, finally influence locating accuracy, make this device be not suitable for doing accurate repeated positioning device.

To sum up, the shortcoming of existing jockey is that its rigid support is to realize in the flexible crimp of one of chuck and workpiece supporting plate, under the effect of heavy cut power, flexible crimp meeting produces vibrations and trembles, and makes the machining accuracy of the machined object on the workpiece supporting plate out of control.

Summary of the invention

The purpose of this utility model is to overcome the defective of prior art; a kind of repositioning connection device of positioning for flexibility and fastening for rigidity is proposed; this device can realize simultaneously that accurate resetting and rigidity clamp, and guarantees the high accuracy of manufacture and the high efficient of making of the safe and reliable and machined object of mechanical processing process.

In order to achieve the above object, the utility model adopts following technical scheme.

A kind of strain rigidity clamping resetting flexible connecting device, by chuck, workpiece supporting plate and blind rivet are formed, chuck comprises chuck base body, four positioning tooths, four Z are to stop surfaces and 3～8 bolts hole, chuck base body 1 comprises the blind rivet hole, chuck base body is cylindrical, the blind rivet hole is a circular hole, the blind rivet hole is positioned at the core of the end face of chuck base body, the central shaft in blind rivet hole overlaps with the central shaft of chuck base body, four positioning tooths are first positioning tooths, second positioning tooth, the 3rd positioning tooth and the 4th positioning tooth, four positioning tooths are radially to move towards, evenly cloth is listed on the circumference of end face of chuck base body, have between the adjacent positioning tooth with radially the trend Z to stop surface, Z has four to stop surface, four Z are that a Z is to stop surface to stop surface, the 2nd Z is to stop surface, the 3rd Z to stop surface and the 4th Z to stop surface, four Z occupy same plane and parallel with the end face of chuck base body to stop surface, the place of keeping to the side is evenly distributed with 3～8 bolts hole on the end face of chuck base body, blind rivet comprises bolt and blind rivet matrix, the workpiece supporting plate comprises workpiece supporting plate matrix, the core of workpiece supporting plate matrix has screwed hole, have four bolt holes around the screwed hole, workpiece supporting plate matrix is cylindrical, it is characterized in that, the normal direction central longitudinal cross section of each positioning tooth is an isosceles trapezoid, its base angle and bottom are respectively between between 80 °～89 ° and the 9～11mm, the workpiece supporting plate also comprises boss, boss is the annulus column, the boss central shaft overlaps with workpiece supporting plate matrix central shaft, on boss, have four radially grooves of trend, article four, groove is first groove, second groove, the 3rd groove and four-way groove, article four, groove is divided into four boss end faces to the end face of boss, four boss end faces are first boss end faces, the second boss end face, the 3rd boss end face and the 4th boss end face, angle between adjacent groove is 90 °, the normal direction central longitudinal cross section of every groove is an isosceles trapezoid, the longitudinal section, normal direction two ends of every groove is a rectangle, the base angle in the normal direction central longitudinal cross section of every groove and bottom are respectively between between 81 °～90 ° and the 8.5～10.5mm, the base angle and the bottom in the normal direction central longitudinal cross section that the base angle in the normal direction central longitudinal cross section of every groove and bottom are slightly less than each positioning tooth respectively, the base of the longitudinal section, normal direction two ends of every groove equals the bottom in the normal direction central longitudinal cross section of each positioning tooth, the left side of every groove, the right side respectively has a blind groove, blind groove is bent limit rectangle, blind groove has eight, eight blind grooves are first blind groove 23e, the second blind groove 23f, the 3rd blind groove, the 4th blind groove, the 5th blind groove, the 6th blind groove, the 7th blind groove and the 8th blind groove, distance between the blind groove on every groove and its both sides is 0.5～3mm, during use, the blind rivet of the screwed hole by being fixed in the workpiece supporting plate, four positioning tooths of chuck and four grooves of workpiece supporting plate are patched together, four Z of chuck are close to four boss end faces of stop surface and workpiece supporting plate, the bottom in the normal direction central longitudinal cross section of every groove equals the bottom in the normal direction central longitudinal cross section of each positioning tooth, the base angle in the normal direction central longitudinal cross section of every groove equals the base angle in the normal direction central longitudinal cross section of each positioning tooth, the base of the longitudinal section, normal direction two ends of every groove overlaps fully with the bottom in the normal direction central longitudinal cross section of each positioning tooth, guarantees that chuck can overlap with workpiece supporting plate central shaft and the mode and the workpiece supporting plate that reach the rigidity clamping snaps together with its central shaft.

The technical solution of the utility model is further characterized in that, has on the bottom surface of four grooves and dodges groove.

The technical solution of the utility model is further characterized in that four positioning tooth two lateral incline and four Z of chuck have the cleaning pore on stop surface.

The technical solution of the utility model is further characterized in that, has four grooves along the bisector trend of adjacent groove axis angle on the end face of the boss of workpiece supporting plate, and groove depth is 0.2～0.8mm.

The technical solution of the utility model is further characterized in that, is coated with wear-resistant coating at four Z of chuck on the end face of the both sides of stop surface and four positioning tooths location contact-making surface and chuck base body, and wear-resistant coating is the PVD coating.

The technical solution of the utility model is further characterized in that, on each of four positioning tooths of chuck, have and move towards identical feather key with it, feather key on first positioning tooth～the 4th positioning tooth is respectively first feather key～the 4th feather key, the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

Compare with background technology, the utility model has following advantage:

1, positioning accuracy height, the location good reproducibility

When the workpiece supporting plate was connected with chuck, the plastic deformation of groove and blind groove can be attached to accurately on the positioning tooth workpiece supporting plate exactly, thereby the central shaft of workpiece supporting plate is overlapped with the central shaft of chuck, guarantees the positioning accuracy height, the location good reproducibility.

2, positioning tooth and Z are few to the stop surface wearing and tearing, long service life

Positioning tooth partly contacts for face with plastic deformation between the groove, Z is big to the contact area of stop surface and boss end face, add that positioning tooth and Z scribble wear-resistant coating on stop surface, make in the position fixing process positioning tooth and Z little to the wearing and tearing that stop surface produces, the influence of wearing and tearing to precision is reduced to bottom line, also helps to prolong the service life of chuck.

3, heavy cut power tolerance is strong

Since chuck and workpiece supporting plate after clamping the rigidity clamping and the face of flexible contact portion contact, give the workpiece supporting plate and have the power of stronger clamping work pieces as the time spent what be subjected to big side force and gather power, thereby reduced side force and gathered of the influence of the moment of power machining, prevent the vibrations of workpiece supporting plate, make the workpiece supporting plate can bear bigger horizontal moment of torsion, make more steady, the safety of part processing process, the retentivity of positioning accuracy is good.

4, reduce the damage of foreign matter, to the influence of positioning accuracy to contact-making surface

The shallow slot of boss end face reduces the workpiece supporting plate at the probability of depositing, boss end face localization part contacts with foreign matter when piling up, the Z of chuck has the cleaning pore on stop surface and positioning tooth two lateral incline simultaneously, can spray gases at high pressure, remove all foreign matters between contact-making surface, reduce foreign matter to the damage of contact-making surface with to the influence of positioning accuracy.

Description of drawings

Fig. 1 is the vertical view of chuck of the device of embodiment 1 of the present utility model, wherein: the 1st, chuck base body, 2 be a Z to stop surface, 3 be the 2nd Z to stop surface, 4 is that the 3rd Z is to stop surface, 5 is that the 4th Z is to stop surface, 6 is first positioning tooths, and 7 is second positioning tooths, and 8 is the 3rd positioning tooths, 9 is the 4th positioning tooths, 10 is first bolts hole, and 11 is second bolts hole, and 12 is the 3rd bolts hole, 13 is the 4th bolts hole, 14 is the 5th bolts hole, and 15 is the 6th bolts hole, and 16 is the 7th bolts hole, 17 is the 8th bolts hole, C-C, D-D, there is the normal direction central longitudinal cross section of positioning tooth at E-E and F-F place.

Fig. 2,3,4,5 is respectively first, second, third, fourth positioning tooth, 6,7,8, the 9 normal direction central longitudinal sectional views of chuck of the device of embodiment 1 of the present utility model.6a is the left waist in first positioning tooth, 6 normal direction central longitudinal cross sections, 6b is the right waist in first positioning tooth, 6 normal direction central longitudinal cross sections, 7a is the left waist in second positioning tooth, 7 normal direction central longitudinal cross sections, 7b is the right waist in second positioning tooth, 7 normal direction central longitudinal cross sections, 8a is the left waist in the 3rd positioning tooth 8 normal direction central longitudinal cross sections, 8b is the right waist in the 3rd positioning tooth 8 normal direction central longitudinal cross sections, and 9a is the left waist in the 4th positioning tooth 9 normal direction central longitudinal cross sections, and 9b is the right waist in the 4th positioning tooth 9 normal direction central longitudinal cross sections.

Fig. 6 is the front view of chuck of the device of embodiment 1 of the present utility model.

Fig. 7 is the vertical view of chuck of the device of embodiment 32 of the present utility model, and wherein: 31a is first lancing door, and 31b is second lancing door, 31c is the 3rd lancing door, and 31d is the 4th lancing door, and 33 is first feather keys, 34 is second feather keys, and 35 is the 3rd feather keys, and 36 is the 4th feather keys.

Fig. 8,9,10,11 is respectively first, second, third, fourth positioning tooth, 6,7,8, the 9 normal direction central longitudinal sectional views of chuck of the device of embodiment 32 of the present utility model.Wherein: 6a ' is the left waist in first positioning tooth, 6 normal direction central longitudinal cross sections, 6b ' is the right waist in first positioning tooth, 6 normal direction central longitudinal cross sections, 7a ' is the left waist in second positioning tooth, 7 normal direction central longitudinal cross sections, 7b ' is the right waist in second positioning tooth, 7 normal direction central longitudinal cross sections, 8a ' is the left waist in the 3rd positioning tooth 8 normal direction central longitudinal cross sections, 8b ' is the right waist in the 3rd positioning tooth 8 normal direction central longitudinal cross sections, 9a ' is the left waist in the 4th positioning tooth 9 normal direction central longitudinal cross sections, and 9b ' is the right waist in the 4th positioning tooth 9 normal direction central longitudinal cross sections.

Figure 12 is the front view of chuck of the device of embodiment 32 of the present utility model.

Figure 13 is the vertical view of workpiece supporting plate of the device of embodiment 1 of the present utility model, wherein: the 18th, screwed hole, 19 is first bolt holes, and 20 is second bolt holes, and 21 is the 3rd bolt holes, 22 is the 4th bolt holes, 23 is first grooves, and 24 is second grooves, and 25 is the 3rd grooves, 26 is four-way grooves, 23e is the first blind groove, and 23f is the second blind groove, and 24e is the 3rd blind groove, 24f is the 4th

blind groove

4,25e is the 5th blind groove, and 25f the 6th is blind groove, and 26e is the 7th blind groove, 26f is the 8th blind groove, 27 is first boss end faces, and 28 is second boss end faces, and 29 is the 3rd boss end faces, 30 is the 4th boss end faces, G-G, H-H, I-I, J-J, K-K, L-L, M-M, N-N, O-O, P-P, there is the normal direction longitudinal section at Q-Q and R-R place.

Figure 14 is the sectional view in the normal direction central longitudinal cross section at G-G place among Figure 13, and wherein: 23a is the left waist in normal direction central longitudinal cross section, and 23b is the right waist in normal direction central longitudinal cross section.

Figure 15 is the sectional view in the normal direction central longitudinal cross section at H-H place among Figure 13, and wherein: 24a is the left waist in normal direction central longitudinal cross section, and 24b is the right waist in normal direction central longitudinal cross section.

Figure 16 is the sectional view in the normal direction central longitudinal cross section at I-I place among Figure 13, and wherein: 25a is the left waist in normal direction central longitudinal cross section, and 25b is the right waist in normal direction central longitudinal cross section.

Figure 17 is the sectional view in the normal direction central longitudinal cross section at J-J place among Figure 13, and 26a is the left waist in normal direction central longitudinal cross section, and 26b is the right waist in normal direction central longitudinal cross section.

Figure 18 is the sectional view of the normal direction front end longitudinal section at K-K place among Figure 13, and wherein: 23c is the left side of normal direction front end longitudinal section, and 23d is the right of normal direction front end longitudinal section.

Figure 19 is the sectional view of the normal direction front end longitudinal section at L-L place among Figure 13, and wherein: 24c is the left side of normal direction front end longitudinal section, and 24d is the right of normal direction front end longitudinal section.

Figure 20 is the sectional view of the normal direction front end longitudinal section at M-M place among Figure 13, and wherein: 25c is the left side of normal direction front end longitudinal section, and 25d is the right of normal direction front end longitudinal section.

Figure 21 is the sectional view of the normal direction front end longitudinal section at N-N place among Figure 13, and wherein: 26c is the left side of normal direction front end longitudinal section, and 26d is the right of normal direction front end longitudinal section.

Figure 22 is the sectional view of the longitudinal section, normal direction rear end at O-O place among Figure 13, and wherein: 23g is the left side of longitudinal section, normal direction rear end, and 23h is the right of longitudinal section, normal direction rear end.

Figure 23 is the sectional view of the longitudinal section, normal direction rear end at P-P place among Figure 13, and wherein: 24g is the left side of longitudinal section, normal direction rear end, and 24h is the right of longitudinal section, normal direction rear end.

Figure 24 is the sectional view of the longitudinal section, normal direction rear end at Q-Q place among Figure 13, and wherein: 25g is the left side of longitudinal section, normal direction rear end, and 25h is the right of longitudinal section, normal direction rear end.

Figure 25 is the sectional view of the longitudinal section, normal direction rear end at R-R place among Figure 13, and wherein: 26g is the left side of longitudinal section, normal direction rear end, and 26h is the right of longitudinal section, normal direction rear end.

Figure 26 is the front view of workpiece supporting plate of the device of embodiment 1 of the present utility model.

Figure 27 is the vertical view of workpiece supporting plate of the device of embodiment 32 of the present utility model, wherein: 19 ' is that first bolt hole and first is dodged the hole, 20 ' is that second bolt hole and second is dodged the hole, 21 ' is that the 3rd bolt hole and the 3rd is dodged the hole, 22 ' is that the 4th bolt hole and the 4th is dodged the hole, and 27 ' is the first boss end face shallow slot, and 28 ' is the second boss end face shallow slot, 29 ' is the 3rd boss end face shallow slot, and 30 ' is the 4th boss end face shallow slot.

Figure 28 is the front view of workpiece supporting plate of the device of embodiment 32 of the present utility model.

Figure 29 a is that the device of embodiment 32 of the present utility model connects the top view when not clamping.

Figure 29 b is the structure side view of the connection of embodiment 32 of the present utility model localization part when not clamping.

Figure 29 c is the partial sectional view at A-A place among Figure 29 a.

Figure 30 a is the top view of the device of embodiment 32 of the present utility model when clamping.

Figure 30 b is the structure side view of the device of embodiment 32 of the present utility model localization part when clamping.

Figure 30 c is the partial sectional view of Figure 30 a at the A-A place.

The specific embodiment

Now describe the technical solution of the utility model and operation principle in conjunction with the accompanying drawings and embodiments in detail, all embodiment have the above basic structure of shown device, and each embodiment is only enumerated crucial technical data.

Embodiment 1

A kind of strain rigidity clamping resetting flexible connecting device, by chuck, workpiece supporting plate and blind rivet are formed, chuck comprises chuck base body 1, four positioning

tooths

6,7,8,9, four Z are to stop

surfaces

2,3,4,5 and three～eight bolts hole, chuck base body 1 comprises the blind rivet hole, chuck base body 1 is cylindrical, the blind rivet hole is a circular hole, the blind rivet hole is positioned at the core of the end face of chuck base body 1, the central shaft in blind rivet hole overlaps with the central shaft of chuck base body 1, four

positioning tooths

6,7,8,9 is first positioning tooths 6, second positioning tooth 7, the 3rd positioning tooth 8 and the 4th positioning tooth 9, four

positioning tooths

6,7,8,9 radially to move towards, evenly cloth is listed on the circumference of end face of chuck base body 1, have between the adjacent positioning tooth with radially the trend Z to stop surface, Z has four to stop surface, four Z are to stop

surface

2,3,4,5 is that a Z is to stop surface 2, the 2nd Z is to stop surface 3, the 3rd Z to stop surface 4 and the 4th Z to stop surface 5, four Z are to stop

surface

2,3,4,5 occupy same plane and parallel with the end face of chuck base body 1, the place of keeping to the side is evenly distributed with three～eight bolts hole on the end face of chuck base body 1, blind rivet comprises bolt and blind rivet matrix, the workpiece supporting plate comprises workpiece supporting plate matrix 32, the core of workpiece supporting plate matrix 32 has screwed hole 18, have four bolt holes 19 around the

screwed hole

18,20,21,22, workpiece supporting plate matrix 32 is cylindrical, it is characterized in that, the normal direction central longitudinal cross section of each positioning tooth is an isosceles trapezoid, its base angle and bottom are respectively between between 80 °～89 ° and the 9～11mm, the workpiece supporting plate also comprises boss, boss is the annulus column, the boss central shaft overlaps with workpiece supporting plate matrix central shaft, on boss, have four radially grooves of trend, article four,

groove

23,24,25,26 is first grooves 23, second groove 24, the 3rd groove 25 and four-way groove 26, article four,

groove

23,24,25, the end face of 26 boss is divided into four boss end faces, four boss end faces are first boss end faces, the second boss end face, the 3rd boss end face and the 4th boss end face, angle between adjacent groove is 90 °, the normal direction central longitudinal cross section of every groove is an isosceles trapezoid, the longitudinal section, normal direction two ends of every groove is a rectangle, the base angle in the normal direction central longitudinal cross section of every groove and bottom are respectively between between 81 °～90 ° and the 8.5～10.5mm, the base angle and the bottom in the normal direction central longitudinal cross section that the base angle in the normal direction central longitudinal cross section of every groove and bottom are slightly less than each positioning tooth respectively, the base of the longitudinal section, normal direction two ends of every groove equals the bottom in the normal direction central longitudinal cross section of each positioning tooth, the left side of every groove, the right side respectively has a blind groove, blind groove is bent limit rectangle, blind groove has eight, eight

blind groove

23e, 23f, 24e, 24f, 25e, 25f, 26e, 26f is the first blind groove 23e, the second blind groove 23f, the 3rd blind groove 24e, the 4th blind groove 24f, the 5th blind groove 25e, the 6th blind groove 25f, the 7th blind groove 26e and the 8th blind groove 26f, distance between the blind groove on every groove and its both sides is 0.5～3mm, during use, the blind rivet of the screwed hole 18 by being fixed in the workpiece supporting plate, make four positioning tooths 6 of chuck, 7,8,9 with four grooves 23 of workpiece supporting plate, 24,25,26 patch together, four Z of chuck are to stop

surface

2,3,4,5 are close to four boss end faces of workpiece supporting plate, the bottom in the normal direction central longitudinal cross section of every groove equals the bottom in the normal direction central longitudinal cross section of each positioning tooth, the base angle in the normal direction central longitudinal cross section of every groove equals the base angle in the normal direction central longitudinal cross section of each positioning tooth, the base of the longitudinal section, normal direction two ends of every groove overlaps fully with the bottom in the normal direction central longitudinal cross section of each positioning tooth, guarantees that chuck can overlap with workpiece supporting plate central shaft and the mode and the workpiece supporting plate that reach the rigidity clamping snaps together with its central shaft.

Embodiment 2

Except for the following differences, remainder and embodiment 1 are identical, it is characterized in that, have on the bottom surface of four

grooves

23,24,25,26 and dodge groove 19 ', 20 ', 21 ', 22 '.

Embodiment 3

Except for the following differences, remainder and embodiment 1 are identical, it is characterized in that, 6,7,8,9 liang of lateral incline of four positioning tooths of chuck and four Z have cleaning

pore

31a, 31b, 31c, 31d on

stop surface

2,3,4,5.

Embodiment 4

Except for the following differences, remainder and embodiment 1 are identical, it is characterized in that, have four

grooves

27,28,29,30 along the bisector trend of adjacent groove axis angle on the end face of the boss of workpiece supporting plate, and groove depth is 0.4mm.

Embodiment 5

Except for the following differences, remainder and embodiment 1 are identical, it is characterized in that be coated with wear-resistant coating at four Z of chuck on the end face of the both sides of 2,3,4,5 and four

positioning tooths

6,7,8,9 of stop surface location contact-making surface and chuck base body 1, wear-resistant coating is the PVD coating.

Embodiment 6

Except for the following differences, remainder and embodiment 1 are identical, it is characterized in that, on each of four

positioning tooths

6,7,8,9 of chuck, have and move towards identical feather key with it, four

feather keys

33,34,35,36 are first feather key 33, second feather key 34, the 3rd feather key 35 and the 4th feather key 36, feather key on first positioning tooth 6～the 4th positioning tooth 9 is respectively first feather key 33～the 4th feather key 36, the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into 1 to 3 section.

Embodiment 7

grooves

23,24,25,26 and dodge

groove

19 ', 20 ', 21 ', 22 ', 6,7,8,9 liang of lateral incline of four positioning tooths of chuck and four Z have cleaning

pore

31a, 31b, 31c, 31d on

stop surface

2,3,4,5.

Embodiment 8

Except for the following differences, remainder and embodiment 1 are identical, it is characterized in that, on the bottom surface of four

grooves

23,24,25,26, have and dodge groove 19 ', 20 ', 21 ', 22 ', have four

grooves

27,28,29,30 along the bisector trend of adjacent groove axis angle on the end face of the boss of workpiece supporting plate, groove depth is 0.4mm.

Embodiment 9

grooves

23,24,25,26, have and dodge groove 19 ', 20 ', 21 ', 22 ', four Z at chuck are coated with wear-resistant coating on the end face of the both sides of 2,3,4,5 and four

positioning tooths

6,7,8,9 of stop surface location contact-making surface and chuck base body 1, coating is the PVD coating.

Embodiment 10

Except for the following differences, remainder and embodiment 1 are identical, it is characterized in that, at four

grooves

23,24,25, have on 26 the bottom surface and dodge groove 19 ', 20 ', 21 ', 22 ', four positioning tooths 6 at chuck, 7,8, have on each of 9 with it and move towards identical feather key, four

feather keys

33,34,35,36 is first feather keys 33, second feather key 34, the 3rd feather key 35 and the 4th feather key 36, feather key on first positioning tooth 6～the 4th positioning tooth 9 is respectively first feather key 33～the 4th feather key 36, the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

Embodiment 11

pore

31a, 31b, 31c, 31d on

stop surface

2,3,4,5, have four

grooves

Embodiment 12

Except for the following differences, remainder and embodiment 1 are identical, 6,7,8,9 liang of lateral incline of four positioning tooths and four Z of it is characterized in that chuck have cleaning

pore

31a, 31b, 31c, 31d on

stop surface

2,3,4,5, four Z at chuck are coated with wear-resistant coating on the end face of the both sides of 2,3,4,5 and four

positioning tooths

Embodiment 13

Except for the following differences, remainder and embodiment 1 are identical, it is characterized in that, four positioning tooths 6 of chuck, 7,8,9 liang of lateral incline and four Z are to stop

surface

2,3,4, have cleaning pore 31a on 5,31b, 31c, 31d, four positioning tooths 6 at chuck, 7,8, have on each of 9 with it and move towards identical feather key, four

feather keys

Embodiment 14

grooves

27,28,29,30 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, groove depth is 0.4mm, four Z at chuck are coated with wear-resistant coating on the end face of the both sides of 2,3,4,5 and four

positioning tooths

Embodiment 15

Except for the following differences, remainder and embodiment 1 are identical, it is characterized in that, have four grooves 27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30, groove depth is 0.4mm, four positioning tooths 6 at chuck, 7,8, have on each of 9 with it and move towards identical feather key, four

feather keys

Embodiment 16

Except for the following differences, remainder and embodiment 1 are identical, it is characterized in that, at four Z of chuck to stop

surface

2,3,4,5 and four

positioning tooths

6,7,8, be coated with wear-resistant coating on 9 the both sides location contact-making surface and the end face of chuck base body 1, coating is the PVD coating, four positioning tooths 6 at chuck, 7,8, have on each of 9 with it and move towards identical feather key, four

feather keys

Embodiment 17

grooves

23,24,25,26, have and dodge

groove

pore

31a, 31b, 31c, 31d on

stop surface

2,3,4,5, have four

grooves

Embodiment 18

grooves

23,24,25,26, have and dodge

groove

pore

31a, 31b, 31c, 31d on

stop surface

positioning tooths

Embodiment 19

grooves

23,24,25, have on 26 the bottom surface and dodge groove 19 ', 20 ', 21 ', 22 ', four positioning tooths 6 of chuck, 7,8,9 liang of lateral incline and four Z are to stop

surface

feather keys

Embodiment 20

grooves

23,24,25,26, have and dodge groove 19 ', 20 ', 21 ', 22 ', have four

grooves

positioning tooths

Embodiment 21

grooves

23,24,25, have on 26 the bottom surface and dodge groove 19 ', 20 ', 21 ', 22 ', have four grooves 27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30, groove depth is 0.4mm, four positioning tooths 6 at chuck, 7,8, have on each of 9 with it and move towards identical feather key, four

feather keys

Embodiment 22

grooves

23,24,25, have on 26 the bottom surface and dodge groove 19 ', 20 ', 21 ', 22 ', at four Z of chuck to stop

surface

2,3,4,5 and four

positioning tooths

feather keys

Embodiment 23

surface

2,3,4, have cleaning pore 31a on 5,31b, 31c, 31d, have four grooves 27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30, groove depth is 0.4mm, at four Z of chuck to stop

surface

2,3,4,5 and four

positioning tooths

6,7,8, be coated with wear-resistant coating on 9 the both sides location contact-making surface and the end face of chuck base body 1, coating is the PVD coating.

Embodiment 24

surface

2,3,4, have cleaning pore 31a on 5,31b, 31c, 31d, have four grooves 27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30, groove depth is 0.4mm, four positioning tooths 6 at chuck, 7,8, have on each of 9 with it and move towards identical feather key, four

feather keys

Embodiment 25

surface

2,3,4, have cleaning pore 31a on 5,31b, 31c, 31d, at four Z of chuck to stop

surface

2,3,4,5 and four

positioning tooths

feather keys

Embodiment 26

Except for the following differences, remainder and embodiment 1 are identical, it is characterized in that, have four grooves 27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30, groove depth is 0.4mm, at four Z of chuck to stop

surface

2,3,4,5 and four

positioning tooths

feather keys

Embodiment 27

grooves

surface

2,3,4,5 and four

positioning tooths

Embodiment 28

Except for the following differences, remainder and embodiment 1 are identical, it is characterized in that, at four grooves 23,24,25, have on 26 the bottom surface and dodge groove 19 ', 20 ', 21 ', 22 ', four positioning tooths 6 of chuck, 7,8,9 liang of lateral incline and four Z are to stop surface 2,3,4, have cleaning pore 31a on 5,31b, 31c, 31d, have four grooves 27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30, groove depth is 0.4mm, four positioning tooths 6 at chuck, 7,8, have on each of 9 with it and move towards identical feather key, four feather keys 33,34,35,36 is first feather keys 33, second feather key 34, the 3rd feather key 35 and the 4th feather key 36, feather key on first positioning tooth 6～the 4th positioning tooth 9 is respectively first feather key 33～the 4th feather key 36, the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

Embodiment 29

Except for the following differences, remainder and embodiment 1 are identical, it is characterized in that, at four grooves 23,24,25, have on 26 the bottom surface and dodge groove 19 ', 20 ', 21 ', 22 ', have four grooves 27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30, groove depth is 0.4mm, at four Z of chuck to stop surface 2,3,4,5 and four positioning tooths 6,7,8, be coated with wear-resistant coating on 9 the both sides location contact-making surface and the end face of chuck base body 1, coating is the PVD coating, four positioning tooths 6 at chuck, 7,8, have on each of 9 with it and move towards identical feather key, four feather keys 33,34,35,36 is first feather keys 33, second feather key 34, the 3rd feather key 35 and the 4th feather key 36, feather key on first positioning tooth 6～the 4th positioning tooth 9 is respectively first feather key 33～the 4th feather key 36, the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

Embodiment 30

Except for the following differences, remainder and embodiment 1 are identical, it is characterized in that, four positioning tooths 6 of chuck, 7,8,9 liang of lateral incline and four Z are to stop surface 2,3,4, have cleaning pore 31a on 5,31b, 31c, 31d, have four grooves 27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30, groove depth is 0.4mm, at four Z of chuck to stop surface 2,3,4,5 and four positioning tooths 6,7,8, be coated with wear-resistant coating on 9 the both sides location contact-making surface and the end face of chuck base body 1, coating is the PVD coating, four positioning tooths 6 at chuck, 7,8, have on each of 9 with it and move towards identical feather key, four feather keys 33,34,35,36 is first feather keys 33, second feather key 34, the 3rd feather key 35 and the 4th feather key 36, feather key on first positioning tooth 6～the 4th positioning tooth 9 is respectively first feather key 33～the 4th feather key 36, the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

Embodiment 31

Except for the following differences, remainder and embodiment 1 are identical, it is characterized in that, at four grooves 23,24,25, have on 26 the bottom surface and dodge groove 19 ', 20 ', 21 ', 22 ', four positioning tooths 6 of chuck, 7,8,9 liang of lateral incline and four Z are to stop surface 2,3,4, have cleaning pore 31a on 5,31b, 31c, 31d, at four Z of chuck to stop surface 2,3,4,5 and four positioning tooths 6,7,8, be coated with wear-resistant coating on 9 the both sides location contact-making surface and the end face of chuck base body 1, coating is the PVD coating, four positioning tooths 6 at chuck, 7,8, have on each of 9 with it and move towards identical feather key, four feather keys 33,34,35,36 is first feather keys 33, second feather key 34, the 3rd feather key 35 and the 4th feather key 36, feather key on first positioning tooth 6～the 4th positioning tooth 9 is respectively first feather key 33～the 4th feather key 36, the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

Embodiment 32

Except for the following differences, remainder and embodiment 1 are identical, it is characterized in that, at four grooves 23,24,25, have on 26 the bottom surface and dodge groove 19 ', 20 ', 21 ', 22 ', four positioning tooths 6 of chuck, 7,8,9 liang of lateral incline and four Z are to stop surface 2,3,4, have cleaning pore 31a on 5,31b, 31c, 31d, have four grooves 27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30, groove depth is 0.4mm, at four Z of chuck to stop surface 2,3,4,5 and four positioning tooths 6,7,8, be coated with wear-resistant coating on 9 the both sides location contact-making surface and the end face of chuck base body 1, coating is the PVD coating, four positioning tooths 6 at chuck, 7,8, have on each of 9 with it and move towards identical feather key, four feather keys 33,34,35,36 is first feather keys 33, second feather key 34, the 3rd feather key 35 and the 4th feather key 36, feather key on first positioning tooth 6～the 4th positioning tooth 9 is respectively first feather key 33～the 4th feather key 36, the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

Embodiment 33

Except for the following differences, remainder and embodiment 32 are identical, it is characterized in that,

Chuck comprises eight bolts hole, and eight bolts hole are first bolt hole 10, second bolt hole 11, the 3rd bolt hole 12, the 4th bolt hole 13, the 5th bolt hole 14, the 6th bolt hole 15, the 7th bolt hole 16 and the 8th bolt hole 17;

The external diameter of chuck base body 1 and highly be respectively 116mm and 56.5mm;

First, second, third, fourth Z is 37mm to stop

surface

2,3,4,5 height to the chuck bottom surface;

The bottom in the normal direction central longitudinal cross section of first, second, third,

fourth positioning tooth

6,7,8,9 is 10mm;

The base angle in the normal direction central longitudinal cross section of first, second, third,

fourth positioning tooth

6,7,8,9 is 83 °;

Described wear-resistant coating is a diamond film coating, the about 0.002mm of coating layer thickness;

The external diameter of workpiece supporting plate matrix 2 and highly be respectively 100mm and 28mm;

fourth groove

23,24,25,26 is 9.9mm;

fourth groove

23,24,25,26 is 85 °;

The base of the longitudinal section, normal direction two ends of first, second, third,

fourth groove

23,24,25,26 is 10mm;

Wall thickness between the blind groove on every groove and its both sides is 1mm;

The inclined-plane of the both sides of feather key and Z are 84 ° to the angle of cut of stop surface;

Each feather key is divided into one section.

Operation principle.

The chuck flank of tooth is upwards kept flat, and workpiece supporting plate boss end face downwards and groove, tooth is staggered relatively connects in the chuck top.When connecting beginning, article four, groove 23,24,25, inclined-plane, both sides, 26 center and four positioning tooths 6,7,8,9 two lateral incline are the line contact, Z is to stop surface and boss end face spacing 0.3mm, article four, groove 23,24,25, the bottom in 26 normal direction central longitudinal cross section is 9.9mm, bottom 10mm less than four positioning tooth normal direction central longitudinal cross sections, article four, groove 23,24,25, the base angle in 26 normal direction central longitudinal cross section be 85 ° less than four positioning tooths 6,7,8,83 ° at the base angle in 9 normal direction central longitudinal cross section, this moment longitudinal section, groove normal direction two ends two waist 23c, 23d, 24c, 24d, 25c, 25d, 26c, 26d does not contact with chuck.By the workpiece supporting plate is imposed downward pressure or pulling force, finish connection subsequently.At this moment, article four, groove 23,24,25, inclined-plane, both sides, 26 center and four positioning tooths 6,7,8,9 inclined-plane, both sides is the face contact, Z reduces to 0mm to stop surface and boss end face spacing, article four, groove 23,24,25, the bottom in 26 normal direction central longitudinal cross section is 10mm, equal four positioning tooths 6,7,8, the bottom (10mm) in 9 normal direction central longitudinal cross section, article four, the base angle in groove normal direction central longitudinal cross section is 83 °, equal the base angle (83 °) in positioning tooth normal direction central longitudinal cross section, this moment four grooves 23,24,25, the base of 26 longitudinal section, normal direction two ends and four positioning tooths 6,7,8, the base (10mm) of 9 normal direction two lateral sections overlaps, and promptly chuck and workpiece supporting plate have entered the rigidity clamped condition.

Claims

1, a kind of strain rigidity clamping resetting flexible connecting device, by chuck, workpiece supporting plate and blind rivet are formed, chuck comprises chuck base body (1), four positioning tooths (6,7,8,9), four Z are to stop surfaces (2,3,4,5) and three～eight bolts hole, chuck base body (1) comprises the blind rivet hole, chuck base body (1) is cylindrical, the blind rivet hole is a circular hole, the blind rivet hole is positioned at the core of the end face of chuck base body (1), the central shaft in blind rivet hole overlaps with the central shaft of chuck base body (1), four positioning tooths (6,7,8,9) be first positioning tooth (6), second positioning tooth (7), the 3rd positioning tooth (8) and the 4th positioning tooth (9), four positioning tooths (6,7,8,9) radially to move towards, evenly cloth is listed on the circumference of end face of chuck base body (1), have between the adjacent positioning tooth with radially the trend Z to stop surface, Z has four to stop surface, four Z are to stop surface (2,3,4,5) be that a Z is to stop surface (2), the 2nd Z is to stop surface (3), the 3rd Z to stop surface (4) and the 4th Z to stop surface (5), four Z are to stop surface (2,3,4,5) occupy same plane and parallel with the end face of chuck base body (1), the place of keeping to the side is evenly distributed with three～eight bolts hole on the end face of chuck base body (1), blind rivet comprises bolt and blind rivet matrix, the workpiece supporting plate comprises workpiece supporting plate matrix (32), the core of workpiece supporting plate matrix (32) has screwed hole (18), screwed hole (18) has four bolt holes (19 on every side, 20,21,22), workpiece supporting plate matrix (32) is cylindrical, it is characterized in that, the normal direction central longitudinal cross section of each positioning tooth is an isosceles trapezoid, its base angle and bottom are respectively between between 80 °～89 ° and the 9～11mm, the workpiece supporting plate also comprises boss, boss is the annulus column, the boss central shaft overlaps with workpiece supporting plate matrix central shaft, on boss, have four radially grooves of trend, article four, groove (23,24,25,26) be first groove (23), second groove (24), the 3rd groove (25) and four-way groove (26), article four, groove (23,24,25,26) end face of boss is divided into four boss end faces, four boss end faces are first boss end faces, the second boss end face, the 3rd boss end face and the 4th boss end face, angle between adjacent groove is 90 °, the normal direction central longitudinal cross section of every groove is an isosceles trapezoid, the longitudinal section, normal direction two ends of every groove is a rectangle, the base angle in the normal direction central longitudinal cross section of every groove and bottom are respectively between between 81 °～90 ° and the 8.5～10.5mm, the base angle and the bottom in the normal direction central longitudinal cross section that the base angle in the normal direction central longitudinal cross section of every groove and bottom are slightly less than each positioning tooth respectively, the base of the longitudinal section, normal direction two ends of every groove equals the bottom in the normal direction central longitudinal cross section of each positioning tooth, the left side of every groove, the right side respectively has a blind groove, blind groove is bent limit rectangle, blind groove has eight, eight blind groove (23e, 23f, 24e, 24f, 25e, 25f, 26e, 26f) be the first blind groove (23e), the second blind groove (23f), the 3rd blind groove (24e), the 4th blind groove (24f), the 5th blind groove (25e), the 6th blind groove (25f), the 7th blind groove (26e) and the 8th blind groove (26f), distance between the blind groove on every groove and its both sides is 0.5～3mm, during use, the blind rivet of the screwed hole (18) by being fixed in the workpiece supporting plate, make four positioning tooths (6 of chuck, 7,8,9) with four grooves (23 of workpiece supporting plate, 24,25,26) patch together, four Z of chuck are to stop surface (2,3,4,5) be close to four boss end faces of workpiece supporting plate, the bottom in the normal direction central longitudinal cross section of every groove equals the bottom in the normal direction central longitudinal cross section of each positioning tooth, the base angle in the normal direction central longitudinal cross section of every groove equals the base angle in the normal direction central longitudinal cross section of each positioning tooth, the base of the longitudinal section, normal direction two ends of every groove overlaps fully with the bottom in the normal direction central longitudinal cross section of each positioning tooth, guarantees that chuck can overlap with workpiece supporting plate central shaft and the mode and the workpiece supporting plate that reach the rigidity clamping snaps together with its central shaft.

2, strain rigidity clamping resetting flexible connecting device according to claim 1 is characterized in that, on the bottom surface of four grooves (23,24,25,26), have dodge groove (19', 20', 21', 22').

3, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that four positioning tooths (6,7,8,9) two lateral incline of chuck and four Z have cleaning pore (31a, 31b, 31c, 31d) on stop surface (2,3,4,5).

4, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, have four grooves (27,28,29,30) along the bisector trend of adjacent groove axis angle on the end face of the boss of workpiece supporting plate, groove depth is 0.4mm.

5, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, four Z at chuck are coated with wear-resistant coating on the end face of the both sides of stop surface (2,3,4,5) and four positioning tooths (6,7,8,9) location contact-making surface and chuck base body (1), wear-resistant coating is the PVD coating.

6, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, have with it on each of four positioning tooths (6,7,8,9) of chuck and move towards identical feather key, four feather keys (33,34,35,36) are first feather key (33), second feather key (34), the 3rd feather key (35) and the 4th feather key (3

6), feather key on first positioning tooth (6)～the 4th positioning tooth (9) is respectively first feather key (33)～the 4th feather key (36), the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

7, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, have on the bottom surface of four grooves (23,24,25,26) and dodge groove (19', 20', 21', 22'), four positioning tooths (6,7,8,9) two lateral incline of chuck and four Z have cleaning pore (31a, 31b, 31c, 31d) on stop surface (2,3,4,5).

8, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, on the bottom surface of four grooves (23,24,25,26), have and dodge groove (19', 20', 21', 22'), have four grooves (27,28,29,30) along the bisector trend of adjacent groove axis angle on the end face of the boss of workpiece supporting plate, groove depth is 0.4mm.

9, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, on the bottom surface of four grooves (23,24,25,26), have and dodge groove (19', 20', 21', 22'), four Z at chuck are coated with wear-resistant coating on the end face of the both sides of stop surface (2,3,4,5) and four positioning tooths (6,7,8,9) location contact-making surface and chuck base body (1), wear-resistant coating is the PVD coating.

10, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, at four grooves (23,24,25,26) have on the bottom surface and dodge groove (19', 20', 21', 22'), four positioning tooths (6 at chuck, 7,8,9) have on each with it and move towards identical feather key, four feather keys (33,34,35,36) be first feather key (33), second feather key (34), the 3rd feather key (35) and the 4th feather key (36), feather key on first positioning tooth (6)～the 4th positioning tooth (9) is respectively first feather key (33)～the 4th feather key (36), the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

11, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, four positioning tooths (6,7,8,9) two lateral incline of chuck and four Z have cleaning pore (31a, 31b, 31c, 31d) on stop surface (2,3,4,5), have four grooves (27,28,29,30) along the bisector trend of adjacent groove axis angle on the end face of the boss of workpiece supporting plate, groove depth is 0.4mm.

12, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, four positioning tooths (6,7,8,9) two lateral incline of chuck and four Z have cleaning pore (31a, 31b, 31c, 31d) on stop surface (2,3,4,5), four Z at chuck are coated with wear-resistant coating on the end face of the both sides of stop surface (2,3,4,5) and four positioning tooths (6,7,8,9) location contact-making surface and chuck base body (1), wear-resistant coating is the PVD coating.

13, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, four positioning tooths (6 of chuck, 7,8,9) two lateral incline and four Z are to stop surface (2,3,4,5) have cleaning pore (31a on, 31b, 31c, 31d), four positioning tooths (6 at chuck, 7,8,9) have on each with it and move towards identical feather key, four feather keys (33,34,35,36) be first feather key (33), second feather key (34), the 3rd feather key (35) and the 4th feather key (36), feather key on first positioning tooth (6)～the 4th positioning tooth (9) is respectively first feather key (33)～the 4th feather key (36), the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

14, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, have four grooves (27,28,29,30) on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, groove depth is 0.4mm, four Z at chuck are coated with wear-resistant coating on the end face of the both sides of stop surface (2,3,4,5) and four positioning tooths (6,7,8,9) location contact-making surface and chuck base body (1), wear-resistant coating is the PVD coating.

15, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, have four grooves (27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30), groove depth is 0.4mm, four positioning tooths (6 at chuck, 7,8,9) have on each with it and move towards identical feather key, four feather keys (33,34,35,36) be first feather key (33), second feather key (34), the 3rd feather key (35) and the 4th feather key (36), feather key on first positioning tooth (6)～the 4th positioning tooth (9) is respectively first feather key (33)～the 4th feather key (36), the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

16, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, at four Z of chuck to stop surface (2,3,4,5) and four positioning tooths (6,7,8,9) be coated with wear-resistant coating on the both sides location contact-making surface and the end face of chuck base body (1), wear-resistant coating is the PVD coating, four positioning tooths (6 at chuck, 7,8,9) have on each with it and move towards identical feather key, four feather keys (33,34,35,36) be first feather key (33), second feather key (34), the 3rd feather key (35) and the 4th feather key (36), feather key on first positioning tooth (6)～the 4th positioning tooth (9) is respectively first feather key (33)～the 4th feather key (36), the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

17, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, on the bottom surface of four grooves (23,24,25,26), have and dodge groove (19', 20', 21', 22'), four positioning tooths (6,7,8,9) two lateral incline of chuck and four Z have cleaning pore (31a, 31b, 31c, 31d) on stop surface (2,3,4,5), have four grooves (27,28,29,30) along the bisector trend of adjacent groove axis angle on the end face of the boss of workpiece supporting plate, groove depth is 0.4mm.

18, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, at four grooves (23,24,25,26) have on the bottom surface and dodge groove (19', 20', 21', 22'), four positioning tooths (6 of chuck, 7,8,9) two lateral incline and four Z are to stop surface (2,3,4,5) have cleaning pore (31a on, 31b, 31c, 31d), at four Z of chuck to stop surface (2,3,4,5) and four positioning tooths (6,7,8,9) be coated with wear-resistant coating on the both sides location contact-making surface and the end face of chuck base body (1), wear-resistant coating is the PVD coating.

19, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, at four grooves (23,24,25,26) have on the bottom surface and dodge groove (19', 20', 21', 22'), four positioning tooths (6 of chuck, 7,8,9) two lateral incline and four Z are to stop surface (2,3,4,5) have cleaning pore (31a on, 31b, 31c, 31d), four positioning tooths (6 at chuck, 7,8,9) have on each with it and move towards identical feather key, four feather keys (33,34,35,36) be first feather key (33), second feather key (34), the 3rd feather key (35) and the 4th feather key (36), feather key on first positioning tooth (6)～the 4th positioning tooth (9) is respectively first feather key (33)～the 4th feather key (36), the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

20, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, at four grooves (23,24,25,26) have on the bottom surface and dodge groove (19', 20', 21', 22'), have four grooves (27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30), groove depth is 0.4mm, at four Z of chuck to stop surface (2,3,4,5) and four positioning tooths (6,7,8,9) be coated with wear-resistant coating on the both sides location contact-making surface and the end face of chuck base body (1), wear-resistant coating is the PVD coating.

21, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, at four grooves (23,24,25,26) have on the bottom surface and dodge groove (19', 20', 21', 22'), have four grooves (27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30), groove depth is 0.4mm, four positioning tooths (6 at chuck, 7,8,9) have on each with it and move towards identical feather key, four feather keys (33,34,35,36) be first feather key (33), second feather key (34), the 3rd feather key (35) and the 4th feather key (36), feather key on first positioning tooth (6)～the 4th positioning tooth (9) is respectively first feather key (33)～the 4th feather key (36), the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

22, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, at four grooves (23,24,25,26) have on the bottom surface and dodge groove (19', 20', 21', 22'), at four Z of chuck to stop surface (2,3,4,5) and four positioning tooths (6,7,8,9) be coated with wear-resistant coating on the both sides location contact-making surface and the end face of chuck base body (1), wear-resistant coating is the PVD coating, four positioning tooths (6 at chuck, 7,8,9) have on each with it and move towards identical feather key, four feather keys (33,34,35,36) be first feather key (33), second feather key (34), the 3rd feather key (35) and the 4th feather key (36), feather key on first positioning tooth (6)～the 4th positioning tooth (9) is respectively first feather key (33)～the 4th feather key (36), the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

23, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, four positioning tooths (6 of chuck, 7,8,9) two lateral incline and four Z are to stop surface (2,3,4,5) have cleaning pore (31a on, 31b, 31c, 31d), have four grooves (27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30), groove depth is 0.4mm, at four Z of chuck to stop surface (2,3,4,5) and four positioning tooths (6,7,8,9) be coated with wear-resistant coating on the both sides location contact-making surface and the end face of chuck base body (1), wear-resistant coating is the PVD coating.

24, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, four positioning tooths (6 of chuck, 7,8,9) two lateral incline and four Z are to stop surface (2,3,4,5) have cleaning pore (31a on, 31b, 31c, 31d), have four grooves (27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30), groove depth is 0.4mm, four positioning tooths (6 at chuck, 7,8,9) have on each with it and move towards identical feather key, four feather keys (33,34,35,36) be first feather key (33), second feather key (34), the 3rd feather key (35) and the 4th feather key (36), feather key on first positioning tooth (6)～the 4th positioning tooth (9) is respectively first feather key (33)～the 4th feather key (36), the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

25, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, four positioning tooths (6 of chuck, 7,8,9) two lateral incline and four Z are to stop surface (2,3,4,5) have cleaning pore (31a on, 31b, 31c, 31d), at four Z of chuck to stop surface (2,3,4,5) and four positioning tooths (6,7,8,9) be coated with wear-resistant coating on the both sides location contact-making surface and the end face of chuck base body (1), wear-resistant coating is the PVD coating, four positioning tooths (6 at chuck, 7,8,9) have on each with it and move towards identical feather key, four feather keys (33,34,35,36) be first feather key (33), second feather key (34), the 3rd feather key (35) and the 4th feather key (36), feather key on first positioning tooth (6)～the 4th positioning tooth (9) is respectively first feather key (33)～the 4th feather key (36), the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

26, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, have four grooves (27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30), groove depth is 0.4mm, at four Z of chuck to stop surface (2,3,4,5) and four positioning tooths (6,7,8,9) be coated with wear-resistant coating on the both sides location contact-making surface and the end face of chuck base body (1), wear-resistant coating is the PVD coating, four positioning tooths (6 at chuck, 7,8,9) have on each with it and move towards identical feather key, four feather keys (33,34,35,36) be first feather key (33), second feather key (34), the 3rd feather key (35) and the 4th feather key (36), feather key on first positioning tooth (6)～the 4th positioning tooth (9) is respectively first feather key (33)～the 4th feather key (36), the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

27, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, at four grooves (23,24,25,26) have on the bottom surface and dodge groove (19', 20', 21', 22'), four positioning tooths (6 of chuck, 7,8,9) two lateral incline and four Z are to stop surface (2,3,4,5) have cleaning pore (31a on, 31b, 31c, 31d), have four grooves (27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30), groove depth is 0.4mm, at four Z of chuck to stop surface (2,3,4,5) and four positioning tooths (6,7,8,9) be coated with wear-resistant coating on the both sides location contact-making surface and the end face of chuck base body (1), wear-resistant coating is the PVD coating.

28, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, at four grooves (23,24,25,26) have on the bottom surface and dodge groove (19', 20', 21', 22'), four positioning tooths (6 of chuck, 7,8,9) two lateral incline and four Z are to stop surface (2,3,4,5) have cleaning pore (31a on, 31b, 31c, 31d), have four grooves (27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30), groove depth is 0.4mm, four positioning tooths (6 at chuck, 7,8,9) have on each with it and move towards identical feather key, four feather keys (33,34,35,36) be first feather key (33), second feather key (34), the 3rd feather key (35) and the 4th feather key (36), feather key on first positioning tooth (6)～the 4th positioning tooth (9) is respectively first feather key 33～the 4th feather key (36), the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

29, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, at four grooves (23,24,25,26) have on the bottom surface and dodge groove (19', 20', 21', 22'), four positioning tooths (6 of chuck, 7,8,9) two lateral incline and four Z are to stop surface (2,3,4,5) have cleaning pore (31a on, 31b, 31c, 31d), at four Z of chuck to stop surface (2,3,4,5) and four positioning tooths (6,7,8,9) be coated with wear-resistant coating on the both sides location contact-making surface and the end face of chuck base body (1), wear-resistant coating is the PVD coating, four positioning tooths (6 at chuck, 7,8,9) have on each with it and move towards identical feather key, four feather keys (33,34,35,36) be first feather key (33), second feather key (34), the 3rd feather key (35) and the 4th feather key (36), feather key on first positioning tooth (6)～the 4th positioning tooth (9) is respectively first feather key (33)～the 4th feather key (36), the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

30, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, at four grooves (23,24,25,26) have on the bottom surface and dodge groove (19', 20', 21', 22'), have four grooves (27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30), groove depth is 0.4mm, at four Z of chuck to stop surface (2,3,4,5) and four positioning tooths (6,7,8,9) be coated with wear-resistant coating on the both sides location contact-making surface and the end face of chuck base body (1), wear-resistant coating is the PVD coating, four positioning tooths (6 at chuck, 7,8,9) have on each with it and move towards identical feather key, four feather keys (33,34,35,36) be first feather key (33), second feather key (34), the 3rd feather key (35) and the 4th feather key (36), feather key on first positioning tooth (6)～the 4th positioning tooth (9) is respectively first feather key (33)～the 4th feather key (36), the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

31, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, four positioning tooths (6 of chuck, 7,8,9) two lateral incline and four Z are to stop surface (2,3,4,5) have cleaning pore (31a on, 31b, 31c, 31d), have four grooves (27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30), groove depth is 0.4mm, at four Z of chuck to stop surface (2,3,4,5) and four positioning tooths (6,7,8,9) be coated with wear-resistant coating on the both sides location contact-making surface and the end face of chuck base body (1), wear-resistant coating is the PVD coating, four positioning tooths (6 at chuck, 7,8,9) have on each with it and move towards identical feather key, four feather keys (33,34,35,36) be first feather key (33), second feather key (34), the 3rd feather key (35) and the 4th feather key (36), feather key on first positioning tooth (6)～the 4th positioning tooth (9) is respectively first feather key (33)～the 4th feather key (36), the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

32, strain rigidity clamping resetting flexible connecting device according to claim 1, it is characterized in that, at four grooves (23,24,25,26) have on the bottom surface and dodge groove (19', 20', 21', 22'), four positioning tooths (6 of chuck, 7,8,9) two lateral incline and four Z are to stop surface (2,3,4,5) have cleaning pore (31a on, 31b, 31c, 31d), have four grooves (27 on the end face of the boss of workpiece supporting plate along the bisector trend of adjacent groove axis angle, 28,29,30), groove depth is 0.4mm, at four Z of chuck to stop surface (2,3,4,5) and four positioning tooths (6,7,8,9) be coated with wear-resistant coating on the both sides location contact-making surface and the end face of chuck base body (1), wear-resistant coating is the PVD coating, four positioning tooths (6 at chuck, 7,8,9) have on each with it and move towards identical feather key, four feather keys (33,34,35,36) be first feather key (33), second feather key (34), the 3rd feather key (35) and the 4th feather key (36), feather key on first positioning tooth (6)～the 4th positioning tooth (9) is respectively first feather key (33)～the 4th feather key (36), the inclined-plane of the both sides of each feather key and Z are 80 ° to 85 ° to the angle of cut of stop surface, and each feather key is divided into one to three section.

33, strain rigidity clamping resetting flexible connecting device according to claim 31, it is characterized in that, chuck comprises eight bolts hole, and eight bolts hole are first bolt hole (10), second bolt hole (11), the 3rd bolt hole (12), the 4th bolt hole (13), the 5th bolt hole (14), the 6th bolt hole (15), the 7th bolt hole (16) and the 8th bolt hole (17);

The external diameter of chuck base body (1) and highly be respectively 116mm and 56.5mm;

First, second, third, fourth Z is 37mm to stop surface (2,3,4,5) to the height of chuck bottom surface;

The bottom in the normal direction central longitudinal cross section of first, second, third, fourth positioning tooth (6,7,8,9) is 10mm;

The base angle in the normal direction central longitudinal cross section of first, second, third, fourth positioning tooth (6,7,8,9) is 83 °;

The external diameter of workpiece supporting plate matrix (2) and highly be respectively 100mm and 28mm;

The bottom in the normal direction central longitudinal cross section of first, second, third, fourth groove (23,24,25,26) is 9.9mm;

The base angle in the normal direction central longitudinal cross section of first, second, third, fourth groove (23,24,25,26) is 85 °;

The base of the longitudinal section, normal direction two ends of first, second, third, fourth groove (23,24,25,26) is 10mm;

Each feather key is divided into one section.