CN103753272A - Pneumatic three-jaw clamp - Google Patents
Pneumatic three-jaw clamp Download PDFInfo
- Publication number
- CN103753272A CN103753272A CN201310751293.2A CN201310751293A CN103753272A CN 103753272 A CN103753272 A CN 103753272A CN 201310751293 A CN201310751293 A CN 201310751293A CN 103753272 A CN103753272 A CN 103753272A
- Authority
- CN
- China
- Prior art keywords
- chuck
- pneumatic
- slide block
- clamp
- wedge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
- B23B31/16233—Jaws movement actuated by oblique surfaces of a coaxial control rod
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
- B23B31/30—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention relates to a pneumatic three-jaw clamp. The pneumatic three-jaw clamp comprises a case, a plurality of clamp units are evenly distributed on the case and fixedly connected with a clamp base, the clamp base is fixedly connected with sliders, the end portions of the sliders abut against the circumference of an inclined wedge in the internal center of the case, and limit plates are arrange on the upper portion of the inclined wedge and abut against the stepped surfaces of the sliders; a piston group is connected to the lower portion of the inclined wedge and on the circumference of an air path tube. The pneumatic three-jaw clamp is simple in structure and convenient to assemble; the air path tube is provided with a first gas communication hole and a second gas communication hole, which achieve the vertical displacement of the piston group inside a sealed cavity by means of gas pressure and further drive the action of the inclined wedge, the sliders, the clamp base and the clamp units, so that the problem that, in the prior art, the operation of the clamp units usually requires manual operation and external air cylinders is solved, and the design difficulty and the manpower cost can be greatly reduced.
Description
Technical field
The present invention relates to plant equipment field, relate in particular to a kind of pneumatic three-jaw chuck.
Background technology
Three-jaw chuck is to utilize moving radially of a plurality of slide blocks be distributed on housing, realizes the clamping and positioning of chuck to workpiece.On current existing housing, moving radially of a plurality of slide blocks is to rely on operating personnel's manual operation, or utilize external cylinder to realize, but the mode that above-mentioned manually operated slide block moves not only wastes time and energy, also improve manpower job costs simultaneously, its complex structure of mode that utilizes external cylinder operation that slide block is moved, cost is high.
Summary of the invention
The applicant, for above-mentioned existing issue, is studied improvement, and a kind of pneumatic three-jaw chuck is provided, and has simple in structure, easy for installationly, can realize slide block slippage, thereby realize the clamping and positioning of chuck to workpiece by pneumatic mode.
The technical solution adopted in the present invention is as follows:
A kind of pneumatic three-jaw chuck, comprise a housing, a plurality of chucks are distributed on described housing and are affixed with chuck base, described chuck base and slide block are affixed, the end of each slide block all with the periphery butt each other that is installed on the wedge of housing central interior, limiting plate is arranged in the top of described wedge and connects with the step surface of slide block; Bottom in described wedge connects piston group, and described piston assembling is placed in the periphery of gas circuit pipe.
Its further technical scheme is:
The quantity of described chuck is directly proportional to the quantity of chuck base and slide block;
The periphery that is positioned at described gas circuit pipe is butt seal cover also, the bottom butt of described seal cover and described housing;
Be positioned on described chuck base and have the first installing hole and the second installing hole, on described chuck, have the 3rd installing hole;
In described housing, between described seal cover and wedge, be formed for piston group upper and lower displacement annular seal space (501);
Be positioned at and on described slide block, have the lubrication channel for the lubricating grease that circulates;
Be positioned at and on described gas circuit pipe, have the first gas flow through hole and the second gas flow through hole;
Beneficial effect of the present invention is as follows:
The present invention is simple in structure, easy for installation, by have the first gas flow through hole and the second gas flow through hole on gas circuit pipe, utilize gas pressure intensity to realize the upper and lower displacement of annular seal space inner carrier group, thereby drive the action of wedge and slide block, chuck base and chuck, avoided needing to realize by manual operation and external cylinder the problem of chuck work in the past, greatly reduced design and saved human cost.
Accompanying drawing explanation
Fig. 1 is three-dimensional sectional structure chart of the present invention.
Fig. 2 is perspective view of the present invention.
Fig. 3 is that Fig. 1 is at the structure for amplifying schematic diagram at A place.
Wherein: 1, slide block; 101, lubrication channel; 2, chuck base; 201, the first installing hole; 202, the second installing hole; 3, chuck; 301, the 3rd installing hole; 302, cambered surface; 4, limiting plate; 5, housing; 501, annular seal space; 6, seal cover; 7, gas circuit pipe; 701, the first gas flow through hole; 702, the second gas flow through hole; 8, piston group; 9, wedge.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As Fig. 1, shown in Fig. 2, a kind of pneumatic three-jaw chuck, comprise a housing 5, a plurality of chucks 3 are distributed in (in Fig. 1, chuck 3 is 3) on housing 5, on chuck 3, have the 3rd installing hole 301 and cambered surface 302, by locking nut and the 3rd installing hole 301, realize the affixed of chuck 3 and chuck base 2, cambered surface 302 and chuck base 2 butts of chuck 3, on chuck base 2, have the first installing hole 201 and the second installing hole 202, by locking nut and above-mentioned the first installing hole 201, the second installing hole 202 is realized the affixed of chuck base 2 and slide block 1, make described chuck 3, chuck base 2 and the slide block 1 formula structure that is connected to form one.The quantity of described chuck 3 is directly proportional to the quantity of chuck base 2 and slide block 1.On slide block 1, have the lubrication channel 101 for the lubricating grease that circulates.
As shown in Figure 1 and Figure 2, the end of above-mentioned each slide block 1 all with the periphery butt each other that is installed on the wedge 9 of housing 5 central interior, limiting plate 4 is arranged in the top of wedge 9 and connects with the step surface of slide block 1; Bottom in wedge 9 connects piston group 8, and piston group 8 is installed on the periphery of gas circuit pipe 7.The periphery that is positioned at gas circuit pipe 7 is butt seal cover 6 also, the bottom butt of seal cover 6 and housing 5.In housing 5, between described seal cover 6 and wedge 9, be formed for piston group 8 upper and lower displacement annular seal spaces 501.As shown in Figure 3, be positioned at and on gas circuit pipe 7, have the first gas flow through hole 701 and the second gas flow through hole 702.
Specific works process of the present invention is as follows:
Chuck unclamps:
As shown in Figure 1, after interior by external tracheae insertion gas circuit pipe 7, gas enters in gas circuit pipe 7 and flows to annular seal space 501 by the first gas flow through hole 701, original gas that resides in annular seal space 501 enters gas circuit pipe 7 by the second gas flow through hole 702, gas in annular seal space 501 is full of saturated rear promotion piston group 8 and moves up in annular seal space 501, make piston group 8 drive wedge 9 interior to top offset at housing 5, until the bottom butt of wedge 9 and limiting plate 4, limiting plate 4 has guaranteed chuck 3, slide block 1 and chuck base 2 maximal dilation shape journeys, due to the periphery of wedge 9 be taper seat and with slide block 1 butt, in moving past journey thus on wedge 9, be with movable slider 1 protruding, due to slide block 1 and chuck base 2, chuck 3 is integral type structure, therefore make that chuck 3 is servo-actuated to be unclamped, can carry out the assembling to workpiece.
Chuck tightens up:
As shown in Figure 1, after interior by external tracheae insertion gas circuit pipe 7, gas enters in gas circuit pipe 7 and flows to annular seal space 501 by the second gas flow through hole 702, original being stored in annular seal space 501, gas between piston group 8 and seal cover 6 enters gas flow tube by first-class through hole 701, gas in annular seal space 501 be full of saturated after promotion piston group 8 in annular seal space 501, move down, thereby make piston group 8 drive wedge 9 interior to bottom offset at housing 5, due to the periphery of wedge 9 be taper seat and with slide block 1 butt, in moving past journey thus on wedge 9, be with movable slider 1 inwardly to shrink, due to slide block 1 and chuck base 2, chuck 3 is integral type structure, therefore make that chuck 3 is servo-actuated to be tightened up, thereby realize the clamping to workpiece.
More than describing is explanation of the invention, is not the restriction to invention, and limited range of the present invention, referring to claim, within protection scope of the present invention, can be done any type of modification.
Claims (7)
1. a pneumatic three-jaw chuck, it is characterized in that: comprise a housing (5), it is upper and affixed with chuck base (2) that a plurality of chucks (3) are distributed in described housing (5), described chuck base (2) is affixed with slide block (1), the end of each slide block (1) all with the periphery butt each other that is installed on the wedge (9) of housing (5) central interior, limiting plate (4) is arranged in the top of described wedge (9) and connects with the step surface of slide block (1); Bottom in described wedge (9) connects piston group (8), and described piston group (8) is installed on the periphery of gas circuit pipe (7).
2. a kind of pneumatic three-jaw chuck as claimed in claim 1, is characterized in that: the quantity of described chuck (3) is directly proportional to the quantity of chuck base (2) and slide block (1).
3. a kind of pneumatic three-jaw chuck as claimed in claim 1, is characterized in that: the periphery that is positioned at described gas circuit pipe (7) is butt seal cover (6) also, the bottom butt of described seal cover (6) and described housing (5).
4. a kind of pneumatic three-jaw chuck as claimed in claim 1, is characterized in that: be positioned on described chuck base (2) and have the first installing hole (201) and the second installing hole (202), have the 3rd installing hole (301) on described chuck (3).
5. a kind of pneumatic three-jaw chuck as described in claim 1 or 3, is characterized in that: in described housing (5), be positioned between described seal cover (6) and wedge (9) and be formed for piston group (8) upper and lower displacement annular seal space (501).
6. a kind of pneumatic three-jaw chuck as claimed in claim 1, is characterized in that: be positioned at and on described slide block (1), have the lubrication channel (101) for the lubricating grease that circulates.
7. a kind of pneumatic three-jaw chuck as claimed in claim 1, is characterized in that: be positioned at and on described gas circuit pipe (7), have the first gas flow through hole (701) and the second gas flow through hole (702).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310751293.2A CN103753272A (en) | 2013-12-31 | 2013-12-31 | Pneumatic three-jaw clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310751293.2A CN103753272A (en) | 2013-12-31 | 2013-12-31 | Pneumatic three-jaw clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103753272A true CN103753272A (en) | 2014-04-30 |
Family
ID=50520673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310751293.2A Pending CN103753272A (en) | 2013-12-31 | 2013-12-31 | Pneumatic three-jaw clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103753272A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108526961A (en) * | 2018-06-08 | 2018-09-14 | 无锡锡西模锻有限公司 | Electric machine casing air-actuated jaw |
| CN111299733A (en) * | 2020-03-30 | 2020-06-19 | 常州工学院 | Rotary air chuck for electrolytic grinding boring machine tool |
| CN115255983A (en) * | 2022-07-18 | 2022-11-01 | 宁波明德机械自动化有限公司 | Fixture for machining automobile hub |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4342109A1 (en) * | 1993-12-10 | 1995-06-14 | Theo Hage Spannwerkzeuge Gmbh | Chuck with pneumatically operated jaws for rotating drive |
| CN2321577Y (en) * | 1998-04-10 | 1999-06-02 | 张芃 | Power chuck |
| TWM333965U (en) * | 2007-11-30 | 2008-06-11 | Chandox Prec Ind Co Ltd | An assembly structure of pneumatic chuck that can be used on indexing head and rotary table |
| CN201157917Y (en) * | 2008-02-28 | 2008-12-03 | 牟燕云 | Pneumatic chuck |
| CN101543897A (en) * | 2009-04-30 | 2009-09-30 | 江苏无锡建华机床附件集团有限公司 | Front-mounted pneumatic chuck |
| CN201997739U (en) * | 2010-09-09 | 2011-10-05 | 江苏无锡建华机床附件集团有限公司 | Rear distribution type front pneumatic chuck |
| CN203665125U (en) * | 2013-12-31 | 2014-06-25 | 无锡威孚马山油泵油嘴有限公司 | Pneumatic three-jaw chuck |
-
2013
- 2013-12-31 CN CN201310751293.2A patent/CN103753272A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4342109A1 (en) * | 1993-12-10 | 1995-06-14 | Theo Hage Spannwerkzeuge Gmbh | Chuck with pneumatically operated jaws for rotating drive |
| CN2321577Y (en) * | 1998-04-10 | 1999-06-02 | 张芃 | Power chuck |
| TWM333965U (en) * | 2007-11-30 | 2008-06-11 | Chandox Prec Ind Co Ltd | An assembly structure of pneumatic chuck that can be used on indexing head and rotary table |
| CN201157917Y (en) * | 2008-02-28 | 2008-12-03 | 牟燕云 | Pneumatic chuck |
| CN101543897A (en) * | 2009-04-30 | 2009-09-30 | 江苏无锡建华机床附件集团有限公司 | Front-mounted pneumatic chuck |
| CN201997739U (en) * | 2010-09-09 | 2011-10-05 | 江苏无锡建华机床附件集团有限公司 | Rear distribution type front pneumatic chuck |
| CN203665125U (en) * | 2013-12-31 | 2014-06-25 | 无锡威孚马山油泵油嘴有限公司 | Pneumatic three-jaw chuck |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108526961A (en) * | 2018-06-08 | 2018-09-14 | 无锡锡西模锻有限公司 | Electric machine casing air-actuated jaw |
| CN111299733A (en) * | 2020-03-30 | 2020-06-19 | 常州工学院 | Rotary air chuck for electrolytic grinding boring machine tool |
| CN115255983A (en) * | 2022-07-18 | 2022-11-01 | 宁波明德机械自动化有限公司 | Fixture for machining automobile hub |
| CN115255983B (en) * | 2022-07-18 | 2024-04-05 | 杭州邦磊汽车零部件有限公司 | Clamp for machining automobile hub |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140430 |
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| WD01 | Invention patent application deemed withdrawn after publication |