CN203449015U - Pneumatic expansion type clamp - Google Patents
Pneumatic expansion type clamp Download PDFInfo
- Publication number
- CN203449015U CN203449015U CN201320487254.1U CN201320487254U CN203449015U CN 203449015 U CN203449015 U CN 203449015U CN 201320487254 U CN201320487254 U CN 201320487254U CN 203449015 U CN203449015 U CN 203449015U
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- plate
- expansion sleeve
- location
- expansion
- pneumatic
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Abstract
The utility model discloses a pneumatic expansion type clamp which comprises a bottom board, two supporting boards, a positioning board, a pulling rod, an expansion sleeve, a cross bar and an air cylinder. The two supporting boards are vertically arranged at the two sides of the top face of the bottom board respectively, the positioning board is located at the top ends of the two supporting boards and is fixedly connected with the two supporting boards; the pulling rod and the expansion sleeve which penetrate through the top board are arranged on the top board; the lower end of the pulling rod and the lower end of the expansion sleeve are respectively and fixedly connected with the cross rod, and the cross rod is fixedly connected with a piston of the air cylinder. The pneumatic expansion type clamp is particularly suitable for finish machining of the overall appearance and the end face of axle sleeve parts. The pneumatic expansion type clamp has the advantages that clamping is convenient and rapid, the machining accuracy of the overall axle sleeve is improved, and the production efficiency is improved.
Description
Technical field
The utility model relates to a kind of machining fixture, especially a kind of solid box External Shape and accurately machined pneumatic expansion chuck tool of end face of being applicable to.
Background technology
Solid box is one of strength member of hydraulic gear pump (motor), the axiality of solid box to its cylindrical and endoporus, and the perpendicularity of cylindrical and end face all has very high requirement, the properties of product of its processing precision direct influence hydraulic gear pump (motor).Existing processing technology, or the method for adopting process step, or adopt expansion sleeve, with two soket head cap screws changing a social system, manually compress expansion sleeve, thus clamping work pieces.Adopting process step has increased processing step, extension of the work cycle, has improved processing cost; In expansion sleeve hand-operated clamping mode, two screws need to be tightened respectively, and processing is longer non-cutting time, if and operator operates lack of standardization, after first tightening on one side, twist again another side, may cause work piece periphery and bottom surface perpendicularity overproof, affect Product Precision.
Utility model content
The utility model is the weak point existing in above-mentioned prior art for avoiding, provide the pneumatic expansion chuck tool that a kind of convenient mounting and clamping is quick, machining accuracy is high, to improve machining accuracy and the working (machining) efficiency of the clamping efficiency of solid box and setting accuracy, raising axle sleeve.
The utility model be technical solution problem by the following technical solutions.
Pneumatic expansion chuck tool, its design feature is to comprise base plate, two gripper shoes, location-plate, pull bar, expansion sleeve, cross bar and cylinders; Described two gripper shoes are stood on respectively the end face both sides of described base plate, and described location-plate is positioned at the top of described two gripper shoes and is fixedly connected with described two gripper shoes; Described location-plate is provided with described pull bar and the described expansion sleeve that penetrates described location-plate; The lower end of described pull bar and the lower end of described expansion sleeve are all fixedly connected with described cross bar, and the piston of described cross bar and described cylinder is fixedly connected.
The design feature of pneumatic expansion chuck tool of the present utility model is also:
Described gripper shoe top is provided with screw, and described location-plate is provided with the through hole that penetrates described location-plate along the thickness direction of described location-plate, and screw is fixed together described location-plate and gripper shoe by screwing in described screw through described.
Described expansion sleeve comprises the concentric expanding block of pedestal and a plurality of concentric settings; Described a plurality of concentric expanding block is arranged at the top of described pedestal, between adjacent two concentric expanding blocks, is provided with open slot, and the lower end of each open slot is provided with the through hole that penetrates described concentric expanding block along the thickness direction of described concentric expanding block.
The endoporus that the concentric expanding block at the pedestal top of described expansion sleeve surrounds is with 15 °～20 ° taperings; The top of pull bar is also with tapering, large 1 °～2 ° of the tapering of the endoporus that expanding block surrounds with one heart described in the taper ratio of described pull bar.
Compared with the prior art, the utility model beneficial effect is embodied in:
Pneumatic expansion chuck tool of the present utility model, location-plate is by gripper shoe and bottom plate connecting, form rack and panel construction, by whole its location-plate face of plain grinding of the rack and panel construction after assembling, then on location-plate face, process expansion sleeve bottom outlet, centre-to-centre spacing is institute's processing parts two locating hole centre-to-centre spacing, two expansion sleeves of interference assembling, the depth of parallelism of fixture locating surface and bottom surface and the perpendicularity requirement of expansion sleeve and bottom surface have so just been guaranteed, expansion sleeve top axle is to uniform six open slots, each decile groove lower end is the hole that diameter is greater than groove width, expansion sleeve endoporus and pull bar upper end are all with tapering, two pull bars are respectively through two expansion sleeves, bottom is connected and fixed by cross bar and cylinder piston rod, cylinder is selected thin cylinder, be arranged on base plate, be positioned at rack and panel construction, hand-operated direction valve and pneumatic line are according to lathe situation reasonable Arrangement, on air inlet pipeline, dress filters, decompression, atomization three linked piece.With hand-operated direction valve, control, during clamping, cylinder piston rod drives two pull bars to pull down by cross bar simultaneously, make expansion sleeve top produce strain and then swelling workpiece, realize the clamping of work piece, the tapering of pull bar is slightly larger than expansion sleeve, so as when tension masterpiece be used in top, increase arm of force length; While unclamping, cylinder piston rod drives pull bar to rise, and expansion sleeve relies on elastical retraction, realizes pine folder.
Pneumatic expansion chuck tool of the present utility model, is particularly useful for solid box External Shape and end face fine finishining, has that convenient mounting and clamping is quick, a machining accuracy that can improve solid box, the advantage such as enhance productivity.
Accompanying drawing explanation
Fig. 1 is the structure chart of pneumatic expansion chuck tool of the present utility model.
Fig. 2 is the schematic diagram of the pneumatic circuit of synchronous pneumatic expansion chuck tool of the present utility model.
Fig. 3 is the stereogram of the expansion sleeve of pneumatic expansion chuck tool of the present utility model.
Fig. 4 is the cutaway view of the expansion sleeve of pneumatic expansion chuck tool of the present utility model.
Fig. 5 is the front view of the work piece (solid box) of pneumatic expansion chuck tool clamping of the present utility model.
Fig. 6 is the A-A cutaway view of Fig. 5.
Label in accompanying drawing 1～accompanying drawing 6: 1 base plate, 2 gripper shoes, 3 location-plates, 4 pull bars, 5 expansion sleeves, 501 concentric expanding blocks, 502 pedestals, 503 open slots, 504 through holes, 505 endoporus, 6 work pieces (solid box), 7 cross bars, 8 cylinders, 9 filtrations, decompression, atomization three linked piece, 10 hand-operated direction valves, 11 screws.
Below pass through the specific embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
The specific embodiment
Referring to accompanying drawing 1～accompanying drawing 6, pneumatic expansion chuck tool comprises base plate 1, two gripper shoes 2, location-plate 3, pull bar 4, expansion sleeve 5, cross bar 7 and cylinders 8; Described two gripper shoes 2 are stood on respectively the end face both sides of described base plate 1, and described location-plate 3 is positioned at the top of described two gripper shoes 2 and is fixedly connected with described two gripper shoes 2; Described location-plate 3 is provided with described pull bar 4 and the described expansion sleeve 5 that penetrates described location-plate 3; The lower end of the lower end of described pull bar 4 and described expansion sleeve 5 is all fixedly connected with described cross bar 7, and described cross bar 7 is fixedly connected with the piston of described cylinder 8.
Described gripper shoe 2 tops are provided with screw, and described location-plate 3 is provided with the through hole that penetrates described location-plate 3 along the thickness direction of described location-plate 3, and screw 11 is fixed together described location-plate 3 and gripper shoe 2 by screwing in described screw through described.
Described expansion sleeve 5 comprises the concentric expanding block 501 of pedestal 502 and a plurality of concentric settings; Described a plurality of concentric expanding block 501 is arranged at the top of described pedestal 502, between adjacent two concentric expanding blocks 501, be provided with open slot 503, the lower end of each open slot 503 is provided with the through hole 504 that penetrates described concentric expanding block 501 along the thickness direction of described concentric expanding block 501.
The endoporus 505 that the concentric expanding block 501 at pedestal 502 tops of described expansion sleeve 5 surrounds is with 15 °～20 ° taperings; The top of pull bar 4 is also with tapering, large 1 °～2 ° of the tapering of the endoporus 505 that expanding block 501 surrounds with one heart described in the taper ratio of described pull bar 4.
Pneumatic expansion chuck tool of the present utility model, comprises the parts such as base plate, gripper shoe, location-plate, pull bar, expansion sleeve, cross bar, cylinder, filtration, decompression, atomization three linked piece, hand-operated direction valve.Described location-plate forms rack and panel construction by gripper shoe and bottom plate connecting; Two expansion sleeves of interference assembling on location-plate, centre-to-centre spacing is institute's processing parts two locating hole centre-to-centre spacing; Two pull bars are respectively through two expansion sleeves, and bottom is connected and fixed by cross bar and cylinder piston rod; Cylinder is arranged on base plate.Described expansion sleeve and pull bar upper end are all with tapering, and the tapering of pull bar is slightly larger than expansion sleeve, so as when tension masterpiece be used in top; Described cylinder is selected thin cylinder, on air inlet pipeline, fill filtration, decompression, atomization three linked piece, hand-operated direction valve control cylinder piston rod and simultaneously drive two pull bars flexible by cross bar, and then make two expansion sleeve swellings or retraction, realize the clamping and pine folder of work piece.The utility model fixture convenient mounting and clamping, quick, machining accuracy is high, has effectively guaranteed quality and the working (machining) efficiency of workpiece.
Described location-plate 3 connects with base plate 1 by gripper shoe 2, forms rack and panel construction; Two expansion sleeves 5 of interference assembling on location-plate 3, centre-to-centre spacing is institute's processing parts two locating hole centre-to-centre spacing; Two pull bars 4 are respectively through two expansion sleeves 5, and bottom is connected and fixed by cross bar 7 and the piston rod of cylinder 8; Cylinder 8 is arranged on base plate 1.
Two pull bar 4 bottoms are connected and fixed by cross bar 7 and the piston rod of cylinder 8, and the piston rod of cylinder 8 can drive two pull bars to produce interlock simultaneously.Pneumatic expansion chuck tool of the present utility model, adopts pneumatic control, and convenient mounting and clamping is quick, enhances productivity, and reduces labour intensity, and pneumatic circuit is clean, environmental protection, utilizes expansion sleeve strain, accurate positioning, and machining accuracy is high.
Location-plate 3 connects with base plate 1 by gripper shoe 2, form rack and panel construction, by whole its location-plate face of plain grinding of the rack and panel construction after assembling, then on location-plate face, process expansion sleeve bottom outlet, centre-to-centre spacing is 6 liang of locating hole centre-to-centre spacing of institute's processing parts, two expansion sleeves 5 of interference assembling, the depth of parallelism of fixture locating surface and bottom surface and the perpendicularity requirement of expansion sleeve and bottom surface have so just been guaranteed, expansion sleeve 5 top axle are to uniform six open slots 503, each decile groove lower end is the hole that diameter is greater than groove width, expansion sleeve 5 endoporus and pull bar 4 upper ends are all with tapering, two pull bars 4 are respectively through two expansion sleeves 5, bottom is connected and fixed by cross bar 7 and cylinder 8 piston rods, cylinder 8 is selected thin cylinder, be arranged on base plate 1, be positioned at rack and panel construction, hand-operated direction valve 10 and pneumatic line are according to lathe situation reasonable Arrangement, on air inlet pipeline, dress filters, decompression, atomization three linked piece 9.With hand-operated direction valve 10, control, during clamping, cylinder 8 piston rods drive two pull bars 4 to pull down by cross bar 7 simultaneously, make expansion sleeve 5 tops produce strain and then swelling workpiece 6, realize the clamping of work piece, the tapering of pull bar is slightly larger than expansion sleeve, so as when tension masterpiece be used in top, increase arm of force length; While unclamping, cylinder 8 piston rods drive pull bar 4 to rise, and expansion sleeve 5 relies on elastical retraction, realizes pine folder.
The utility model utilizes expansion sleeve strain, accurate positioning, and machining accuracy is high, adopts pneumatic control, and convenient mounting and clamping is quick, enhances productivity, and reduces labour intensity, and pneumatic circuit is clean, environmental protection.
Claims (4)
1. pneumatic expansion chuck tool, is characterized in that, comprises base plate (1), two gripper shoes (2), location-plate (3), pull bar (4), expansion sleeve (5), cross bar (7) and cylinder (8); Described two gripper shoes (2) are stood on respectively the end face both sides of described base plate (1), and described location-plate (3) is positioned at the top of described two gripper shoes (2) and is fixedly connected with described two gripper shoes (2); Described location-plate (3) is provided with described pull bar (4) and the described expansion sleeve (5) that penetrates described location-plate (3); The lower end of the lower end of described pull bar (4) and described expansion sleeve (5) is all fixedly connected with described cross bar (7), and described cross bar (7) is fixedly connected with the piston of described cylinder (8).
2. pneumatic expansion chuck tool according to claim 1, it is characterized in that, described gripper shoe (2) top is provided with screw, described location-plate (3) is provided with the through hole that penetrates described location-plate (3) along the thickness direction of described location-plate (3), and screw (11) is fixed together described location-plate (3) and gripper shoe (2) through described screw.
3. pneumatic expansion chuck tool according to claim 1, is characterized in that, described expansion sleeve (5) comprises the concentric expanding block (501) of pedestal (502) and a plurality of concentric settings; Described a plurality of concentric expanding blocks (501) are arranged at the top of described pedestal (502), between adjacent two concentric expanding blocks (501), be provided with open slot (503), the lower end of each open slot (503) is provided with the through hole (504) that penetrates described concentric expanding block (501) along the thickness direction of described concentric expanding block (501).
4. pneumatic expansion chuck tool according to claim 3, is characterized in that, the endoporus (505) that the concentric expanding block (501) at pedestal (502) top of described expansion sleeve (5) surrounds is with 15 °～20 ° taperings; The top of pull bar (4) is also with tapering, large 1 °～2 ° of the tapering of the endoporus (505) that expanding block (501) surrounds with one heart described in the taper ratio of described pull bar (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320487254.1U CN203449015U (en) | 2013-08-09 | 2013-08-09 | Pneumatic expansion type clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320487254.1U CN203449015U (en) | 2013-08-09 | 2013-08-09 | Pneumatic expansion type clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203449015U true CN203449015U (en) | 2014-02-26 |
Family
ID=50128918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320487254.1U Expired - Fee Related CN203449015U (en) | 2013-08-09 | 2013-08-09 | Pneumatic expansion type clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203449015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394935A (en) * | 2013-08-09 | 2013-11-20 | 合肥长源液压股份有限公司 | Pneumatic expansion type clamp |
| CN111546099A (en) * | 2020-02-20 | 2020-08-18 | 东莞市闻誉实业有限公司 | Fixing clamp and machining equipment |
-
2013
- 2013-08-09 CN CN201320487254.1U patent/CN203449015U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394935A (en) * | 2013-08-09 | 2013-11-20 | 合肥长源液压股份有限公司 | Pneumatic expansion type clamp |
| CN111546099A (en) * | 2020-02-20 | 2020-08-18 | 东莞市闻誉实业有限公司 | Fixing clamp and machining equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20170809 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |