CN201505821U - Self-centering clamping jig - Google Patents
Self-centering clamping jig Download PDFInfo
- Publication number
- CN201505821U CN201505821U CN 200920047900 CN200920047900U CN201505821U CN 201505821 U CN201505821 U CN 201505821U CN 200920047900 CN200920047900 CN 200920047900 CN 200920047900 U CN200920047900 U CN 200920047900U CN 201505821 U CN201505821 U CN 201505821U
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- China
- Prior art keywords
- mandrel
- workpiece
- positioning disk
- self
- disc spring
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Abstract
The utility model discloses a self-centering clamping jig, comprising a gig body, a mandrel, an angular position limiter and a clamping mechanism, wherein the mandrel is fixed on the jig body, one end of the mandrel adjacent to the jig body (1) is provided with a step. The self-centering clamping jig also comprises a positioning tray sleeved on the mandrel, the positioning tray is provided with a groove corresponding to a hole to be machined, at least one disk spring piece is arranged between the positioning tray and the step of the mandrel, the disk spring piece and the positioning tray are all provided with locating holes, positioning pins are arranged in the locating holes, and the disk spring piece and the positioning tray are positioned on the step of the mandrel. According to the utility model, the gapless self-centering and positioning of the workpiece can be realized, the centering accuracy is high, and the jig has simple structure, the assemble and unassemble of the workpiece is convenient and the automatic large-batch production is easy to be completed.
Description
Technical field
The utility model relates to a kind of frock clamp, is specifically related to a kind of anchor clamps that carry out the self-centering location in clamping process with the workpiece endoporus.
Background technology
In the workpiece mechanical processing process, the processing in hole is very frequent, often need tens of drillings even up to a hundred holes on the workpiece, precision in order to ensure workpiece assembling back product, Kong Douhui on these workpiece has the dimensions, Geometrical Tolerance Principle, and guarantee that the size in hole to be processed on the workpiece, the most important condition of form and position tolerance precision are that workpiece can be positioned on the frock clamp by accurate clamping, therefore, the clamping positioning accuracy of raising workpiece has crucial meaning to machining.
In the prior art, normally utilize the workpiece endoporus that workpiece is sleeved on the columniform mandrel, utilize the angle stop spacing after, compress the location by the hydraulic pressure rotary oil cylinder again, mechanical processing steps such as can hole.Yet, owing to have certain clearance between workpiece endoporus and the mandrel, when utilizing said structure to carry out clamping and positioning, the situation that workpiece departs from mandrel very easily appears, it is the center line that the center line of workpiece endoporus departs from mandrel, thereby cause the positioning accuracy of workpiece not high, influence follow-up machining, when serious even cause converted products to be scrapped.
Summary of the invention
The utility model purpose provides the self-centering clamping anchor clamps that a kind of simple in structure, work-handling is convenient, centering precision is high.
For achieving the above object, the technical solution adopted in the utility model is: a kind of self-centering clamping anchor clamps, comprise clamp body, mandrel, angle stop and clamp mechanism, described mandrel is fixed on the clamp body, mandrel is provided with step near an end of clamp body (1), also comprise positioning disk, described positioning disk sleeve is connected on the mandrel, has on the positioning disk and the corresponding groove in workpiece hole site to be processed; Be provided with at least one disc spring film between described positioning disk and the mandrel step, be equipped with locating hole on described disc spring film and the positioning disk, be provided with alignment pin in the locating hole, disc spring film and positioning disk are positioned on the mandrel step.
Above, described clamp mechanism can be the hydraulic pressure rotary oil cylinder, and its quantity is determined according to actual conditions, so that workpiece is pressed solidly on clamp body.
Realize by disc spring film the self-centering location of described workpiece endoporus, during clamping, workpiece is enclosed within on the mandrel, the angular position of workpiece is limited by angle stop fixing on the clamp body, utilize the hydraulic pressure rotary oil cylinder that pressing plate is pressed solidly workpiece downwards again, workpiece drives positioning disk pressure is passed to disc spring film, disc spring film spreading radially under the effect of pressure, make on the gapless inwall that withstands on workpiece of the outer shroud of disc spring film, thereby make the gapless self-centering of workpiece, in addition, disc spring film tightly is placed on the mandrel, form very closely spaced cooperation, guaranteed the positional precision of disc spring film self, make the site error between disc spring film and the mandrel drop to minimum the influence of workpiece centering precision.Having on the described positioning disk and the corresponding obstructed groove in workpiece hole site to be processed, is that cutter and positioning disk are collided during for fear of machining hole; Described alignment pin is positioned disc spring film and positioning disk on the mandrel step, makes the groove on the positioning disk corresponding one by one with hole to be processed in the vertical direction.After the workpiece completion of processing, the hydraulic pressure rotary oil cylinder rises the pressing plate rotation, and disc spring film shrinks and recovers, and workpiece can easily be unloaded.
Because the technique scheme utilization, the advantage that the utility model compared with prior art has is:
1, because the utility model is provided with disc spring film between positioning disk and mandrel step, in clamping process, disc spring film under pressure radially spreading withstand on the workpiece inwall, realized self-centering location, no gap, improve the centering precision of knowing clearly greatly, help the Precision Machining of workpiece.
2, the step of the utility model by positioning disk and clamp body supports the location to the end face of workpiece, utilize the radially tensioner of disc spring film to carry out the Non-clearance Alignment location, the clamping location is reliable and stable, and the charge and discharge operations of workpiece is simple and convenient, is easy to realize automated production in enormous quantities.
3, the utility model clamp structure is simple, is easy to realize, is fit to promote the use of.
Description of drawings
Accompanying drawing 1 cuts open figure for the master of the utility model embodiment one; (guide pillar does not draw)
Accompanying drawing 2 is the vertical view of the utility model embodiment one; (guide pillar does not draw)
Master when accompanying drawing 3 is the utility model embodiment one clamping work pieces cuts open figure; (guide pillar does not draw)
Vertical view when accompanying drawing 4 is the utility model embodiment one clamping work pieces; (guide pillar does not draw)
Accompanying drawing 5 is the cutaway view of clamp mechanism among the utility model embodiment one.(guide pillar does not draw)
Wherein: 1, clamp body; 2, mandrel; 3, angle stop; 4, clamp mechanism; 5, rotary pressure plate; 6, disc spring film; 7, positioning disk; 8, alignment pin; 9, locating hole; 10, step; 11, workpiece; 12, groove; 13, hole to be processed.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one
Shown in accompanying drawing 1～5, a kind of self-centering clamping anchor clamps, comprise clamp body 1, mandrel 2, angle stop 3 and clamp mechanism 4, described mandrel 2 is fixed on the clamp body 1, mandrel 2 is provided with step 10 near an end of clamp body 1, also comprise positioning disk 7, described positioning disk 7 is socketed on the mandrel 2, has on the positioning disk 7 and the corresponding groove 12 in workpiece 11 hole sites to be processed; Be provided with at least one disc spring film 6 between described positioning disk 7 and the mandrel step 10, be equipped with locating hole 9 on described disc spring film 6 and the positioning disk 7, be provided with alignment pin 8 in the locating hole 9, disc spring film 6 and positioning disk 7 are positioned on the mandrel step 10.
Shown in accompanying drawing 2,4,5, described clamp mechanism 4 is for being the hydraulic pressure rotary oil cylinder, and its quantity is determined according to actual conditions, so that workpiece is pressed solidly on clamp body.Present embodiment has adopted 2 hydraulic pressure rotary oil cylinders.Hydraulic pressure rotary oil cylinder driven rotary pressing plate 5 presses down with clamping work pieces, and after workpiece processed, driven rotary pressing plate 5 rose, rotary pressure plate depart from workpiece directly over, can unload workpiece easily.
Shown in accompanying drawing 3～5, during clamping workpiece, workpiece 11 is enclosed within on the mandrel 2, the angular position of workpiece 11 is limited by angle stop 3, during clamping, hydraulic-driven rotary pressure plate 5 presses down workpiece 11, workpiece 11 drives positioning disk 7 pressure is passed to disc spring film 6, disc spring film 6 spreading radially under the effect of pressure, the outer round surface of disc spring film 6 is gapless to withstand on the inwall of workpiece 11, thereby make workpiece 11 gapless self-centerings, in addition, become on the also closely spaced cylindrical that is engaged in mandrel 2 of the bore area of disc spring film 6 of spreading state, guaranteed the positional precision of disc spring film 6 self, 2 the site error that makes disc spring film 6 and mandrel drops to minimum to the influence of workpiece 11 centering precisions.Have on the described positioning disk 7 and the corresponding obstructed groove 12 in workpiece 11 hole sites to be processed, cutter and positioning disk 7 are collided in the time of can avoiding machining hole, described alignment pin 8 limits the angular position of positioning disk 7, makes groove 12 corresponding one by one with hole to be processed 13 in the vertical directions.Also be provided with the guide pillar of positioning and guiding effect on the described clamp body.After the workpiece completion of processing, the hydraulic pressure rotary oil cylinder rises the pressing plate rotation, and disc spring film shrinks and recovers, and workpiece can easily be unloaded.
Claims (1)
1. self-centering clamping anchor clamps, comprise clamp body (1), mandrel (2), angle stop (3) and clamp mechanism (4), described mandrel (2) is fixed on the clamp body (1), mandrel (2) is provided with step (10) near an end of clamp body (1), it is characterized in that: also comprise positioning disk (7), described positioning disk (7) is socketed on the mandrel (2), has on the positioning disk (7) and the corresponding groove in workpiece (11) hole site to be processed (12); Be provided with at least one disc spring film (6) between described positioning disk (7) and the mandrel step (10), be equipped with locating hole (9) on described disc spring film (6) and the positioning disk (7), be provided with alignment pin (8) in the locating hole (9), disc spring film (6) and positioning disk (7) are positioned on the mandrel step (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920047900 CN201505821U (en) | 2009-08-21 | 2009-08-21 | Self-centering clamping jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920047900 CN201505821U (en) | 2009-08-21 | 2009-08-21 | Self-centering clamping jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201505821U true CN201505821U (en) | 2010-06-16 |
Family
ID=42466956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920047900 Expired - Fee Related CN201505821U (en) | 2009-08-21 | 2009-08-21 | Self-centering clamping jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201505821U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909581A (en) * | 2012-10-19 | 2013-02-06 | 上海三一精机有限公司 | Positioning compacting device and working platform |
| CN103639718A (en) * | 2013-11-21 | 2014-03-19 | 四川成发航空科技股份有限公司 | General clamp for machining blade molded line |
| CN103639809A (en) * | 2013-11-18 | 2014-03-19 | 苏州蓝王机床工具科技有限公司 | Automatic centering mandrel |
| CN104029043A (en) * | 2014-06-24 | 2014-09-10 | 天润曲轴股份有限公司 | Clamping centering device for shafts |
| CN109262318A (en) * | 2018-09-28 | 2019-01-25 | 芜湖先力自动化设备有限公司 | A kind of connecting plate milling machine hydraulically operated fixture and its application method |
-
2009
- 2009-08-21 CN CN 200920047900 patent/CN201505821U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909581A (en) * | 2012-10-19 | 2013-02-06 | 上海三一精机有限公司 | Positioning compacting device and working platform |
| CN103639809A (en) * | 2013-11-18 | 2014-03-19 | 苏州蓝王机床工具科技有限公司 | Automatic centering mandrel |
| CN103639718A (en) * | 2013-11-21 | 2014-03-19 | 四川成发航空科技股份有限公司 | General clamp for machining blade molded line |
| CN103639718B (en) * | 2013-11-21 | 2016-04-13 | 四川成发航空科技股份有限公司 | The universal fixturing of machining blade molded line |
| CN104029043A (en) * | 2014-06-24 | 2014-09-10 | 天润曲轴股份有限公司 | Clamping centering device for shafts |
| CN109262318A (en) * | 2018-09-28 | 2019-01-25 | 芜湖先力自动化设备有限公司 | A kind of connecting plate milling machine hydraulically operated fixture and its application method |
| CN109262318B (en) * | 2018-09-28 | 2024-01-30 | 芜湖先力自动化设备有限公司 | Hydraulic clamp of connecting plate milling machine and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20120821 |