CN102152149B - High rigidity and flexibility locating clamp and locating method of locating clamp - Google Patents
High rigidity and flexibility locating clamp and locating method of locating clamp Download PDFInfo
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- CN102152149B CN102152149B CN 201110122392 CN201110122392A CN102152149B CN 102152149 B CN102152149 B CN 102152149B CN 201110122392 CN201110122392 CN 201110122392 CN 201110122392 A CN201110122392 A CN 201110122392A CN 102152149 B CN102152149 B CN 102152149B
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Abstract
The invention discloses a high rigidity and flexibility locating clamp which comprises a chuck base body and a work support plate, wherein the chuck base body and the work support plate are connected by a connecting device. The locating clamp is characterized in that the lower end of the work support plate is provided with a boss, the end surface of the boss is provided with a Z shaft locating surface, a plurality of locating grooves are arranged in the boss, the upper end of the chuck base body is provided with a plurality of locating teeth matched with the locating grooves, and the upper end of the chuck base body is provided with a Z shaft datum plane matched with the Z shaft locating surface. The side inclination of the locating teeth is 80-90 DEG, the side inclination of the locating grooves is 81-90 DEG, the side inclination of the locating grooves is 1-3 DEG bigger than that of the locating teeth, the bottom width of the locating grooves is 0.01-0.5mm smaller than the root width of the locating teeth, and both of the two sides of each locating groove are provided with dodge holes. The high rigidity and flexibility locating clamp has the advantages of high repeated locating accuracy, simple structure and low processing cost.
Description
Technical field
The present invention relates to precision optical machinery make in the technical field of positioning clamping between lathe and workpiece, be specifically related to a kind of high rigid and flexible positioning fixture.
Background technology
The positioning clamping anchor clamps are most commonly used to clamp with one or more workpiece, and workpiece is positioned at the exact position in machine tooling district, are carrier or the supporting plate of workpiece with the parts of workpiece, and the parts that are fixed to the machine tooling district are chuck.Thereby can realize the production process that flexible automation is produced.
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 for holding 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 X or Y-direction location to work rest.The chuck end face is provided with the Z-direction stop surface, is used for the Z-direction location to work rest.The problem that this jockey exists is, can only one in X or the Y-direction be located such as need X, Y-direction simultaneously to positioning, just must make up two or more jockeys and use together, and the installation requirement of composite set height.And be only applicable to the lower medium-and-large-sized part of precision secondly because above-mentioned location is the rigidity location, holding pin and centre bore wearing and tearing are large, 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 CN20041009540.X discloses a kind of jockey.This device comprises chuck and work blade, and chuck is provided with at least three centrepins, and work blade is provided with the groove of being combined with centrepin.The removable lining mode of work blade is connected with chuck, and detent mechanism and clamp mechanism are rigidity, can bear certain load.When work blade is connected with chuck, definite the former relative latter's the Z-direction position thereby both can work in coordination.The width of the centrepin of chuck is less than the groove width of work blade.Therefore be connected with chuck when work blade, when positioning, the centrepin on the chuck only with the single contacts side surfaces of corresponding groove, centrepin and another side are gapped, therefore only have four applyings in eight sides of four grooves, this location belongs to the rigidity location, and what will cause locating is uncertain.In addition, frictional force between the groove side of centrepin and its applying is very big, the uneven wear that in use will cause centrepin and groove side, the precision of final impact location, make this device in different manufacture fields, especially difficult utilization in the manufacture field of needs cutting rigidity, and in the automatic flexible production process, be difficult for promoting.
To sum up, the shortcoming of existing anchor clamps is, its rigidity location is that the flexible crimp in one of chuck and work blade realizes.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 work blade out of control.Thereby make this precision.
Summary of the invention
The high rigid and flexible positioning fixture that provides a kind of repetitive positioning accuracy high is provided one object of the present invention, is used for high-accuracy flexible automation production process.
In order to realize this purpose, technical scheme of the present invention is as follows: a kind of high rigid and flexible positioning fixture, comprise chuck base body and workpiece supporting plate, connect by jockey between chuck base body and the workpiece supporting plate, it is characterized in that the machine-shaping of workpiece supporting plate overall time, workpiece supporting plate lower end is provided with boss, raised head face is established the Z axis locating surface, be provided with a plurality of locating slots in the boss, the chuck base body upper end is provided with the positioning tooth that a plurality of and described locating slot matches, the Z axis datum face that matches with the Z axis locating surface is established in the chuck base body upper end, the both sides of each locating slot are equipped with dodges the hole, the positioning tooth side is provided with the inclined-plane, its gradient is 80 ~ 89 degree, and the side of locating slot is provided with the inclined-plane, and its gradient is 81 ~ 90 degree, inclined-plane, the side gradient of locating slot is than large 1 ~ 3 degree of inclined-plane, positioning tooth side gradient, and the bottom width of locating slot is than the little 0.01 ~ 1mm of root width of positioning tooth.The distance of dodging between lower end, hole and the raised head face is 0.2 ~ 2mm.According to one embodiment of present invention, the locating slot top is provided with one and connects the rigidity locating slot that the hole is dodged on both sides, and the width of this rigidity locating slot is 0.05 ~ 0.5mm.According to a preferred embodiment of the invention, the quantity of described locating slot and positioning tooth is respectively 2 ~ 8.
Another object of the present invention is to provide a kind of localization method of high rigid and flexible positioning fixture, be used for high-accuracy flexible automation production process.
In order to realize this purpose, technical scheme of the present invention is as follows: a kind of localization method of high rigid and flexible positioning fixture, it is characterized in that when the jockey between chuck base body and the workpiece supporting plate is opened, leave the gap of 0.1 ~ 2mm between Z axis datum face on workpiece supporting plate boss Z axis locating surface and the chuck base body is fitted, the locating slot side becomes line to contact with the positioning tooth side; When the jockey between chuck base body and the workpiece supporting plate is locked, the Z axis locating surface of workpiece supporting plate and the Z axis datum face of chuck base body are fitted, deformation occurs in the hole of dodging of the locating slot left and right sides, identical with the bevel angle on positioning tooth the first inclined-plane after the bevel angle on locating slot the second inclined-plane changes, the second inclined-plane, locating slot side contacts with positioning tooth the first inclined-plane formation face.
The invention has the advantages that the workpiece supporting plate adopts overall time machine-shaping, improved its rigidity and made anchor clamps produce high-precision resetting by structural design also have simultaneously very strong clamping rigidity.So not only can corresponding comparatively accurate fine finishining, the roughing that cutting output is larger also can be adopted the further raising efficiency of this workpiece supporting plate, and because the rigidity lifting of anchor clamps, so the integral rigidity of cutting environment also can promote, so surface smoothness of the workpiece that processes, form and position tolerance all will obtain very large lifting.Especially be to adopt simple structure, reduce production costs and cost that the client uses, be more suitable for using precision and the efficient of producing to improve on a large scale in different fields, and can realize the flexible automation production process.
Description of drawings
Fig. 1 is the side view of workpiece supporting plate of the present invention.
Fig. 2 is the upward view of Fig. 1.
Fig. 3 is the side view of chuck base body of the present invention.
Fig. 4 is the top view of Fig. 3.
The connection diagram of Fig. 5 workpiece supporting plate and chuck base body when not locking.
The connection diagram of workpiece supporting plate and chuck base body when Fig. 6 is locking.
Fig. 7 is the structural representation of the chuck base body of another embodiment of the present invention.
Fig. 8 is the distortion schematic diagram of rigidity locating slot in structure when locking of Fig. 7.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described.
A kind of high rigid and flexible positioning fixture, comprise workpiece supporting plate 1 and chuck base body 2, connect by jockey between workpiece supporting plate 1 and the chuck base body 2, it is characterized in that workpiece supporting plate 1 lower end is provided with boss 3, boss 3 end faces are established Z axis locating surface 4, boss 3 is provided with a plurality of locating slots 5, chuck base body 2 upper ends are provided with the positioning tooth 6 that a plurality of and described locating slot 5 matches, the Z axis datum face 7 that matches with Z axis locating surface 4 is also established in chuck base body 2 upper ends, the both sides of each locating slot 5 are equipped with dodges hole 8, positioning tooth 6 root sides are the first inclined-plane 15, its gradient is 80 ~ 89 degree, the height on this inclined-plane is at least 1 ~ 10mm, and the side, bottom opening place of locating slot 5 is the second inclined-plane 16, and its gradient is 81 ~ 90 degree, the height on this inclined-plane is at least 1 ~ 10mm, and necessarily more than or equal to the bevel altitude of positioning tooth, the gradient of locating slot 5 is than large 1 ~ 3 degree of positioning tooth 6 side gradients, the little 0.01 ~ 1mm of root width of the bottom opening Width positioning tooth 6 of locating slot 5 for the bevel altitude of locating slot.The distance of dodging between 8 lower ends, hole and boss 2 end faces is 0.2 ~ 2mm, and dodging the hole sidewall is 0.5 ~ 5mm to the distance on locating slot inclined-plane.According to one embodiment of present invention, locating slot 5 tops are provided with one and connect the rigidity locating slot 9 that the hole is dodged on both sides, and the width of this rigidity locating slot 9 is 0.05 ~ 0.5mm.Spacing between locating slot 5 and the rigidity locating slot 9 is 1 ~ 2mm.According to a preferred embodiment of the invention, the quantity of locating slot and positioning tooth is respectively 2 ~ 8.According to another embodiment of the present invention, locating slot top is provided with a rigidity locating slot 19, and the rigidity locating slot is positioned at the top 0.2 ~ 2mm that dodges the hole, not with dodge the hole and be connected, thereby also form a thin warp of rigid support at two above dodging the hole, thereby increase rigidity.
Fig. 1 and Fig. 2 are the structural representation of workpiece supporting plate 1 in one embodiment of the invention.The end face of workpiece supporting plate 1 is circular, the center, lower end of this workpiece supporting plate 1 is provided with jockey 11 or is connected device, can with chuck base body 2 centers be connected device 12 or jockey is locked mutually so that interconnect between workpiece supporting plate 1 and the chuck base body 2.The outer ring, lower end of workpiece supporting plate 1 is provided with round ring boss 3, this round ring boss end face has been disposed radially 4 locating slots 5, the center line of these 4 locating slots 5 all points to the center of workpiece supporting plate 1, and these round ring boss 3 end faces are divided into four faces, is respectively four Z axis locating surfaces 4.Z axis locating surface 4 is positioned at the bottommost of workpiece supporting plate 1, matches the z axle location when being connected connection with chuck base body for workpiece supporting plate 1 with Z axis datum face 7.Be evenly equipped with a plurality of through holes and screwed hole at workpiece supporting plate 1.The workpiece supporting plate is selected antirust steel, is overall time machine-shaping, and such as whole machining, cast is and if need to heat-treat technique.
Fig. 3 and Fig. 4 are the structural representation of chuck base body 2.The end face of this chuck base body 2 also is circular, and the center, upper end of this chuck base body is provided with jockey or is connected device 12.The upper end of chuck base body 2 is provided with the positioning tooth 6 that matches with above-mentioned 4 locating slots 5, is provided with a convex plane between described two adjacent positioned teeth 6, the Z axis datum face 7 of this convex plane for matching with Z axis locating surface 4.Z axis datum face 7 equates with the distance of adjacent two positioning tooths.Z axis datum face 7 is planes of a projection, is positioned at the top of chuck base body 2, matches the z axle location when being connected connection with chuck base body for workpiece supporting plate 1 with Z axis locating surface 4.
When workpiece supporting plate 1 is connected connection with chuck base body, there is certain gap in jockey 11 between Z axis locating surface 4 and the Z axis datum face 7 during not with workpiece supporting plate 1 and chuck base body 2 locking, and the size in this gap is between 0.01 ~ 1mm.Described 4 locating slots, 5 lower end width of rebate are greater than upper end root width, and its side, both sides is the inclined-plane, and gradient is 80 ~ 89 degree.The lower end tooth root width of described 4 positioning tooths 6 is greater than the upper end addendum width, its two sides also are the inclined-plane, gradient is 81 ~ 90 degree, and the gradient of locating slot 5 is than large 1 ~ 3 degree of positioning tooth 6 side gradients, and the bottom width of locating slot 5 is than the little 0.01 ~ 0.5mm of root width of positioning tooth 6.The inclined-plane in locating slot left side is that line contacts with the inclined-plane in positioning tooth left side, and the inclined-plane on locating slot right side also contacts for line with the inclined-plane on positioning tooth right side.Such positioning accuracy is not high, in order to improve positioning accuracy, the both sides of locating slot 5 are equipped with dodges hole 8, locating slot deforms during for locking, so that fit fully in the side of locating slot and positioning tooth, in order to obtain better locating effect, above locating slot 5, also be provided with one and connect the rigidity locating slot 9 that the hole is dodged on both sides, the width of this rigidity locating slot 9 is 0.05 ~ 0.5mm.
When jockey 11 during with 2 locking of workpiece supporting plate 1 and chuck base body, there is not the gap between Z axis locating surface 4 and the Z axis datum face 7, two working faces are close to, the gap is 0, and deformation occurs in first deformed region 13 of dodging hole 8 below inner sides, be bent upwards, deformation occurs in the second deformed region 14 between locating slot 5 and the rigidity locating slot 9, upwards arch upward in the centre, cause bottom and the top of rigidity locating slot to be fitted, making the middle width of groove is 0, and the gradient on the inclined-plane of locating slot both sides changes simultaneously, equals the gradient on inclined-plane, positioning tooth both sides.Fit fully in the inclined-plane of the inclined-plane of locating slot both sides and positioning tooth both sides, the contact of formation face.
Claims (7)
1. one kind high rigid and flexible positioning fixture, comprise chuck base body and workpiece supporting plate, connect by jockey between chuck base body and the workpiece supporting plate, it is characterized in that the machine-shaping of workpiece supporting plate overall time, workpiece supporting plate lower end is boss, raised head face is established the Z axis locating surface, be provided with a plurality of locating slots in the boss, the chuck base body upper end is provided with the positioning tooth that a plurality of and described locating slot matches, the Z axis datum face that matches with the Z axis locating surface is established in the chuck base body upper end, the both sides of each locating slot are equipped with dodges the hole, the positioning tooth side is provided with the first inclined-plane, its gradient is 80 ~ 89 degree, and the side of locating slot is provided with the second inclined-plane, and its gradient is 81 ~ 90 degree, the side second inclined-plane gradient of locating slot is than large 1 ~ 3 degree of positioning tooth side the first inclined-plane gradient, the bottom width of locating slot is than the little 0.01 ~ 1mm of root width of positioning tooth, and the locating slot top is provided with one and connects the rigidity locating slot that the hole is dodged on both sides, and the width of this rigidity locating slot is 0.05 ~ 0.5mm.
2. one kind high rigid and flexible positioning fixture, comprise chuck base body and workpiece supporting plate, connect by jockey between chuck base body and the workpiece supporting plate, it is characterized in that the machine-shaping of workpiece supporting plate overall time, workpiece supporting plate lower end is boss, raised head face is established the Z axis locating surface, be provided with a plurality of locating slots in the boss, the chuck base body upper end is provided with the positioning tooth that a plurality of and described locating slot matches, the Z axis datum face that matches with the Z axis locating surface is established in the chuck base body upper end, the both sides of each locating slot are equipped with dodges the hole, the positioning tooth side is provided with the first inclined-plane, and its gradient is 80 ~ 89 degree, and the side of locating slot is provided with the second inclined-plane, its gradient is 81 ~ 90 degree, the side second inclined-plane gradient of locating slot is than large 1 ~ 3 degree of positioning tooth side the first inclined-plane gradient, and the bottom width of locating slot is than the little 0.01 ~ 1mm of root width of positioning tooth, and the locating slot top is provided with a rigidity locating slot, the rigidity locating slot is positioned at the top 0.2 ~ 2mm that dodges the hole, forms the thin footpath of rigid support at two above dodging the hole.
3. high rigid and flexible positioning fixture as claimed in claim 1 or 2, the distance that it is characterized in that dodging between lower end, hole and the raised head face is 0.2 ~ 2mm, dodging the hole sidewall is 0.5 ~ 5mm to the distance on locating slot inclined-plane.
4. high rigid and flexible positioning fixture as claimed in claim 1 or 2, it is characterized in that the first inclined-plane, positioning tooth side is located at root, the height on this inclined-plane is 1 ~ 10mm, the second inclined-plane, locating slot side is located at the bottom opening place, the height on this inclined-plane is 1 ~ 10mm, and the bevel altitude of locating slot is necessarily more than or equal to the bevel altitude of positioning tooth.
5. high rigid and flexible positioning fixture as claimed in claim 1 or 2 is characterized in that the Z axis datum face is the plane of a projection.
6. high rigid and flexible positioning fixture as claimed in claim 1 or 2 is characterized in that the quantity of locating slot and positioning tooth is respectively 2 ~ 8.
7. high rigid and flexible positioning fixture as claimed in claim 1 or 2, it is characterized in that when the jockey between chuck base body and the workpiece supporting plate is opened, leave the gap of 0.1 ~ 2mm between the Z axis datum face on workpiece supporting plate boss Z axis locating surface and the chuck base body, the locating slot side becomes line to contact with the positioning tooth side; When the jockey between chuck base body and the workpiece supporting plate is locked, the Z axis locating surface of workpiece supporting plate and the Z axis datum face of chuck base body are fitted, deformation occurs in the hole of dodging of the locating slot left and right sides, identical with the bevel angle on the first inclined-plane, positioning tooth side after the bevel angle on the second inclined-plane, locating slot side changes, the second inclined-plane, locating slot side contacts with positioning tooth side the first inclined-plane formation face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110122392 CN102152149B (en) | 2011-05-12 | 2011-05-12 | High rigidity and flexibility locating clamp and locating method of locating clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110122392 CN102152149B (en) | 2011-05-12 | 2011-05-12 | High rigidity and flexibility locating clamp and locating method of locating clamp |
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| CN102152149A CN102152149A (en) | 2011-08-17 |
| CN102152149B true CN102152149B (en) | 2013-05-29 |
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| CN 201110122392 Active CN102152149B (en) | 2011-05-12 | 2011-05-12 | High rigidity and flexibility locating clamp and locating method of locating clamp |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108856769A (en) * | 2018-07-20 | 2018-11-23 | 迈凯实金属技术（苏州）有限公司 | A kind of rapid interchangeable chuck structure |
| CN109590773B (en) * | 2018-11-16 | 2021-06-11 | 北京航天控制仪器研究所 | Positioning device with flexible structure and positioning method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4188610B2 (en) * | 2002-03-05 | 2008-11-26 | 株式会社コスメック | Positioning device |
| WO2008136049A1 (en) * | 2007-04-20 | 2008-11-13 | Pascal Engineering Corporation | Positioning and fixing device for work pallet |
| CN101318294B (en) * | 2008-06-30 | 2013-01-09 | 上海麦迅机床工具技术有限公司 | Repositioning connection device of positioning for flexibility and fastening for rigidity |
| CN101704200B (en) * | 2009-09-25 | 2012-11-07 | 上海麦迅机床工具技术有限公司 | Resetting device using flexible positioning and rigid clamping in combination and positioning method thereof |
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2011
- 2011-05-12 CN CN 201110122392 patent/CN102152149B/en active Active
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| JP特开2003-260624A 2003.09.16 |
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