CN214722544U - Pneumatic piston driving rotary centering clamp - Google Patents
Pneumatic piston driving rotary centering clamp Download PDFInfo
- Publication number
- CN214722544U CN214722544U CN202121150875.1U CN202121150875U CN214722544U CN 214722544 U CN214722544 U CN 214722544U CN 202121150875 U CN202121150875 U CN 202121150875U CN 214722544 U CN214722544 U CN 214722544U
- Authority
- CN
- China
- Prior art keywords
- piston
- pneumatic
- chuck
- central shaft
- shaft sleeve
- 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.)
- Active
Links
Images
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
The utility model belongs to the technical field of the centre gripping utensil, refer in particular to a pneumatic piston drive gyration centering anchor clamps, including anchor clamps casing and central axle sleeve, the locking window has been seted up to circumference on the lateral wall of central axle sleeve, be formed with pneumatic cavity between central axle sleeve and the anchor clamps casing, pneumatic cavity's lower tip plunger is connected with the location piston, floating chuck has been placed to the upper end, and the location piston reciprocates and can drive floating chuck and wear out locking window or indentation locking window, the inlet channel has been seted up on the pneumatic cavity, the inflation channel has been seted up on the pneumatic cavity, when the locking window was worn out to floating chuck, inflation channel is linked together with inlet channel. The utility model discloses simple structure can possess the centre gripping simultaneously and aerify the function, has effectively reduced the quantity of processing equipment and has reduced the cost of product processing equipment.
Description
The technical field is as follows:
the utility model belongs to the technical field of the centre gripping utensil, refer in particular to a pneumatic piston drive gyration centering anchor clamps.
Background art:
at present, in the machining process, the pneumatic clamp clamps a machined workpiece through manual operation, machining efficiency can be obviously improved, high-pressure gas is filled into the pneumatic clamp from an external gas source, a clamping jaw in the pneumatic clamp can firmly clamp the machined workpiece, and therefore subsequent machining procedures can be carried out.
However, the existing pneumatic clamp has a single function, namely, only has a function of clamping a workpiece, and in the tire filling process, the tire filling process not only needs the pneumatic clamp for fixing the hub, but also needs other equipment for inflating the tire, so that the problems of multiple and complex equipment and high processing cost exist.
The invention content is as follows:
the utility model aims at providing a can possess the clamping function, can possess the pneumatic piston drive gyration centering anchor clamps of function of inflating again.
The utility model discloses a realize like this:
a pneumatic piston driven rotary centering clamp comprises a clamp shell and a central shaft sleeve arranged on the clamp shell, wherein a plurality of locking windows are circumferentially arranged on the side wall of the central shaft sleeve, a pneumatic chamber is formed between the central shaft sleeve and the clamp shell, a plunger piston at the lower end of the pneumatic chamber is connected with a positioning piston, floating chucks corresponding to the locking windows in number and position are arranged at the upper end of the pneumatic chamber, the positioning piston moves up and down to drive the floating chuck to penetrate out of or retract into the locking window along the radial direction of the central shaft sleeve, an air inlet channel communicated with an external air source is arranged on the pneumatic chamber below the positioning piston, an air charging channel communicated with the outside is arranged on the pneumatic chamber outside or above the positioning piston, when the positioning piston moves upwards to drive the floating chuck to pass through the locking window, the inflation channel is communicated with the air inlet channel.
In the pneumatic piston driven rotary centering fixture, a chuck pressing plate is arranged in a pneumatic cavity above the floating chuck, a radial sliding groove is formed in the bottom of the chuck pressing plate along the radial direction of the central shaft sleeve, and the floating chuck is connected to the radial sliding groove in a sliding mode.
In the pneumatic piston-driven rotary centering fixture, the bottom of the chuck press plate is vertically provided with a guide pillar, the bottom end of the guide pillar extends downwards and is connected to the positioning piston in a sliding manner, and the guide pillar is sleeved with a return spring, two ends of the return spring respectively abut against the chuck press plate and the positioning piston.
In foretell pneumatic piston drive gyration centering anchor clamps, chuck clamp plate and unsteady chuck can reciprocate in pneumatic cavity, and the up end of chuck clamp plate is inconsistent with the bottom surface of gland guide arm, and the upper end of gland guide arm penetrates the anchor clamps casing and inconsistent with the little terminal surface of unsteady locating pin, and the upper end threaded connection of anchor clamps casing has adjusting nut, and ring groove has been seted up to adjusting nut's bottom surface, and the upper end card of unsteady locating pin is established in ring groove and can slide in ring groove.
In the pneumatic piston driving rotary centering fixture, the upper end of the positioning piston is provided with a driving chute, the floating chuck is connected to the driving chute in a sliding manner, and the positioning piston moves up and down to drive the floating chuck to penetrate out of or retract into the locking window along the radial direction of the central shaft sleeve through the driving chute.
In the above pneumatic piston-driven rotary centering fixture, the positioning piston is provided with a piston taper sleeve with a large diameter at the top and a small diameter at the bottom, the inner conical surface of the piston taper sleeve is fixed with a clamping jaw, the clamping jaw is provided with an inner driving inclined surface, and the driving sliding groove is formed between the inner driving inclined surface and the inner conical surface of the piston taper sleeve.
In foretell pneumatic piston drive gyration centering anchor clamps, the storage tank has been seted up to the up end of location piston, piston taper sleeve and clamping jaw all are located the storage tank, and the tail end of fastener runs through clamping jaw, piston taper sleeve and spiro union in proper order on the storage tank.
In the above pneumatic piston-driven rotary centering fixture, the fixture housing includes an upper housing having a central through hole and a lower port, and a base sleeved at the lower port of the upper housing, the central shaft sleeve is fixed between the upper housing and the base, an inner hole of the central shaft sleeve and the central through hole of the upper housing are spliced to form a clamping channel for clamping a shaft rod, the pneumatic chamber is formed between an inner wall surface of the upper housing, an upper end surface of the base, and an outer wall surface of the central shaft sleeve, the air inlet channel is provided on the base, and the air inflation channel is provided on the upper housing.
Compared with the prior art, the utility model outstanding advantage is:
the utility model discloses pass through inlet channel by external air supply and fill high-pressure gas into pneumatic chamber in, make the positioning piston rebound under high-pressure gas's promotion, radially wear out the locking window along central axis cover with the chuck that floats of drive, and then realize the centre gripping to the work piece, and simultaneously, when the chuck of floating grasps the work piece, the positioning piston rebound has crossed the inflation passageway, thereby fill into the high-pressure gas that fills in pneumatic chamber and can flow into the inflation passageway, in order to be used for aerifing the function, the steam generator is simple in structure, can possess centre gripping and gas filled function simultaneously, the quantity of processing equipment has effectively been reduced, and the cost of product processing equipment has been reduced.
Description of the drawings:
fig. 1 is an overall sectional view of the present invention;
fig. 2 is an overall sectional view of the present invention;
fig. 3 is an exploded view of the positioning piston, floating collet and collet press plate of the present invention.
In the figure: 1. a clamp housing; 2. a central shaft sleeve; 3. a locking window; 4. positioning the piston; 5. a floating chuck; 6. an air intake passage; 7. an inflation channel; 8. a chuck pressing plate; 9. a radial chute; 10. a guide post; 11. a gland guide rod; 12. a floating positioning pin; 13. adjusting the nut; 14. an annular neck; 15. a piston taper sleeve; 16. a clamping jaw; 17. an inner driving inclined plane; 18. a containing groove; 19. a central through hole; 20. an upper housing; 21. a base.
The specific implementation mode is as follows:
the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 3:
a pneumatic piston driving rotary centering clamp comprises a clamp shell 1 and a central shaft sleeve 2 arranged on the clamp shell 1, a plurality of locking windows 3 are circumferentially arranged on the side wall of the central shaft sleeve 2, a pneumatic cavity is formed between the central shaft sleeve 2 and the clamp shell 1, a plunger piston at the lower end of the pneumatic cavity is connected with positioning pistons 4, floating chucks 5 corresponding to the locking windows 3 in number and position are placed at the upper end of the pneumatic cavity, the positioning pistons 4 can move up and down to drive the floating chucks 5 to penetrate out of the locking windows 3 or retract into the locking windows 3 along the radial direction of the central shaft sleeve 2, an air inlet channel 6 communicated with an external air source is arranged on the pneumatic cavity below the positioning pistons 4, an air charging channel 7 communicated with the outside is arranged on the pneumatic cavity outside or above the positioning pistons 4, when the positioning pistons 4 move upwards to drive the floating chucks 5 to penetrate out of the locking windows 3, The charge passage 7 communicates with the intake passage 6.
The utility model discloses pass through inlet channel 6 by external air supply and fill high-pressure gas into pneumatic chamber in, make positioning piston 4 rebound under high-pressure gas's promotion, radially wear out locking window 3 along central axis cover 2 with drive chuck 5 that floats, and then realize the centre gripping to the work piece, and simultaneously, when chuck 5 grips the work piece floats, positioning piston 4 rebound has crossed inflation channel 7, thereby fill high-pressure gas in pneumatic chamber and can flow into inflation channel 7, so as to be used for aerifing the function, a structure is simple, centre gripping and inflated function can have been possessed simultaneously, the quantity of processing equipment has effectively been reduced, and the cost of product processing equipment has been reduced.
In order to effectively guide the floating chuck 5 to slide inwards and outwards in the radial direction of the central shaft sleeve 2, a chuck pressing plate 8 is arranged in a pneumatic cavity above the floating chuck 5, a radial sliding groove 9 is formed in the bottom of the chuck pressing plate 8 in the radial direction of the central shaft sleeve 2, and the floating chuck 5 is connected to the radial sliding groove 9 in a sliding mode.
And, the positioning piston 4 can adopt the common cylinder reset structure to reset downwards, namely a reset channel communicated with an external air source is arranged in a pneumatic cavity above the positioning piston 4, the positioning piston 4 is pushed to move downwards to reset by high-pressure air filled from the reset channel and drives the floating chuck 5 to retract into the locking window 3 along the radial direction of the central shaft sleeve 2, in the embodiment, a guide pillar 10 is vertically arranged at the bottom of the chuck press plate 8, the bottom end of the guide pillar 10 extends downwards and is connected on the positioning piston 4 in a sliding manner, and a reset spring with two ends respectively abutting against the chuck press plate 8 and the positioning piston 4 is sleeved on the guide pillar 10, namely, the reset of the positioning piston 4 and the floating chuck 5 is realized by means of the elastic force of the reset spring.
Meanwhile, in order to adjust the elastic force of the reset spring so as to adjust the pressure of the high-pressure gas pushing the positioning piston 4 to move upwards, the chuck pressing plate 8 and the floating chuck 5 can move up and down in the pneumatic cavity, the upper end surface of the chuck pressing plate 8 is abutted to the bottom surface of the gland guide rod 11, the upper end of the gland guide rod 11 penetrates into the fixture shell 1 and is abutted to the small end surface of the floating positioning pin 12, the upper end of the fixture shell 1 is in threaded connection with an adjusting nut 13, the bottom surface of the adjusting nut 13 is provided with an annular clamping groove 14, the upper end of the floating positioning pin 12 is clamped in the annular clamping groove 14 and can slide in the annular clamping groove 14, and the floating positioning pin 12 moves up and down to change the deformation of the reset spring by screwing in or out the adjusting nut 13.
Furthermore, the utility model discloses in, the linkage that locating piston 4 reciprocated and drove 5 radial movements of unsteady chuck does: the upper end of the positioning piston 4 is provided with a driving sliding groove, the floating chuck 5 is connected to the driving sliding groove in a sliding mode, and the positioning piston 4 moves up and down to drive the floating chuck 5 to penetrate out of the locking window 3 or retract into the locking window 3 along the radial direction of the central shaft sleeve 2 through the driving sliding groove.
Furthermore, the specific forming structure of the driving chute is as follows: the positioning piston 4 is provided with a piston taper sleeve 15 with a large caliber at the top and a small caliber at the bottom, a clamping jaw 16 is fixed on the inner conical surface of the piston taper sleeve 15, an inner driving inclined surface 17 is arranged on the clamping jaw 16, and the driving sliding groove is formed between the inner driving inclined surface 17 and the inner conical surface of the piston taper sleeve 15.
In order to enable the piston taper sleeve 15 to be stable and fixed on the upper positioning piston 4, the upper end face of the positioning piston 4 is provided with an accommodating groove 18, the piston taper sleeve 15 and the clamping jaw 16 are both located in the accommodating groove 18, and the tail end of the fastener sequentially penetrates through the clamping jaw 16 and the piston taper sleeve 15 and is in threaded connection with the accommodating groove 18.
Further, in the present embodiment, the specific structure of the fixture housing 1 is: the clamp shell 1 comprises an upper shell 20 with a central through hole 19 and a lower port, and a base 21 sleeved at the lower port of the upper shell 20, the central shaft sleeve 2 is fixed between the upper shell 20 and the base 21, an inner hole of the central shaft sleeve 2 and the central through hole 19 of the upper shell 20 are spliced to form a clamping channel for clamping a shaft rod, the pneumatic cavity is formed between the inner wall surface of the upper shell 20, the upper end surface of the base 21 and the outer wall surface of the central shaft sleeve 2, the air inlet channel 6 is arranged on the base 21, and the inflation channel 7 is arranged on the upper shell 20.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a pneumatic piston drive gyration centering anchor clamps which characterized in that: comprises a clamp shell (1) and a central shaft sleeve (2) arranged on the clamp shell (1), wherein a plurality of locking windows (3) are circumferentially arranged on the side wall of the central shaft sleeve (2), a pneumatic cavity is formed between the central shaft sleeve (2) and the clamp shell (1), a plunger piston at the lower end of the pneumatic cavity is connected with a positioning piston (4), a floating chuck (5) corresponding to the locking windows (3) in number and position is arranged at the upper end of the pneumatic cavity, the floating chuck (5) can be driven by the up-and-down movement of the positioning piston (4) to penetrate out of the locking windows (3) or retract into the locking windows (3) along the radial direction of the central shaft sleeve (2), an air inlet channel (6) communicated with an external air source is arranged on the pneumatic cavity below the positioning piston (4), and an air charging channel (7) communicated with the outside is arranged on the pneumatic cavity at the outer side or above the positioning piston (4), when the positioning piston (4) moves upwards to drive the floating chuck (5) to penetrate through the locking window (3), the inflation channel (7) is communicated with the air inlet channel (6).
2. A pneumatic piston driven rotary centering fixture as claimed in claim 1, wherein: and a chuck pressing plate (8) is arranged in the pneumatic cavity above the floating chuck (5), a radial sliding groove (9) is formed in the bottom of the chuck pressing plate (8) along the radial direction of the central shaft sleeve (2), and the floating chuck (5) is connected to the radial sliding groove (9) in a sliding manner.
3. A pneumatic piston driven rotary centering fixture as claimed in claim 2, wherein: the clamp is characterized in that a guide pillar (10) is vertically arranged at the bottom of the clamp pressing plate (8), the bottom end of the guide pillar (10) extends downwards and is connected to the positioning piston (4) in a sliding mode, and a return spring with two ends respectively abutted to the clamp pressing plate (8) and the positioning piston (4) is sleeved on the guide pillar (10).
4. A pneumatic piston driven rotary centering fixture as claimed in claim 3, wherein: chuck clamp plate (8) and unsteady chuck (5) can reciprocate in pneumatic chamber, the up end of chuck clamp plate (8) is inconsistent with the bottom surface of gland guide arm (11), the upper end of gland guide arm (11) penetrates anchor clamps casing (1) and is inconsistent with the little terminal surface of unsteady locating pin (12), the upper end threaded connection of anchor clamps casing (1) has adjusting nut (13), ring groove (14) have been seted up to the bottom surface of adjusting nut (13), the upper end card of unsteady locating pin (12) is established in ring groove (14) and can slide in ring groove (14).
5. A pneumatic piston driven rotary centering fixture as claimed in claim 1, wherein: the upper end of the positioning piston (4) is provided with a driving sliding groove, the floating chuck (5) is connected to the driving sliding groove in a sliding mode, and the positioning piston (4) moves up and down to drive the floating chuck (5) to penetrate out of the locking window (3) or retract into the locking window (3) along the radial direction of the central shaft sleeve (2) through the driving sliding groove.
6. A pneumatic piston driven rotary centering fixture as claimed in claim 5, wherein: the positioning piston (4) is provided with a piston taper sleeve (15) with a large caliber at the top and a small caliber at the bottom, a clamping jaw (16) is fixed on the inner conical surface of the piston taper sleeve (15), an inner driving inclined surface (17) is arranged on the clamping jaw (16), and the driving sliding groove is formed between the inner driving inclined surface (17) and the inner conical surface of the piston taper sleeve (15).
7. A pneumatic piston driven rotary centering fixture as claimed in claim 6, wherein: storage tank (18) have been seted up to the up end of location piston (4), piston taper sleeve (15) and clamping jaw (16) all are located storage tank (18), and the tail end of fastener runs through clamping jaw (16), piston taper sleeve (15) and spiro union on storage tank (18) in proper order.
8. A pneumatic piston driven rotary centering fixture as claimed in claim 1, wherein: the clamp shell (1) comprises an upper shell (20) with a central through hole (19) and a lower port, and a base (21) sleeved at the lower port of the upper shell (20), wherein a central shaft sleeve (2) is fixed between the upper shell (20) and the base (21), an inner hole of the central shaft sleeve (2) and the central through hole (19) of the upper shell (20) are spliced to form a clamping channel for clamping a shaft rod, the pneumatic cavity is formed between the inner wall surface of the upper shell (20), the upper end surface of the base (21) and the outer wall surface of the central shaft sleeve (2), an air inlet channel (6) is formed in the base (21), and an air inflation channel (7) is formed in the upper shell (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121150875.1U CN214722544U (en) | 2021-05-26 | 2021-05-26 | Pneumatic piston driving rotary centering clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121150875.1U CN214722544U (en) | 2021-05-26 | 2021-05-26 | Pneumatic piston driving rotary centering clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214722544U true CN214722544U (en) | 2021-11-16 |
Family
ID=78625640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121150875.1U Active CN214722544U (en) | 2021-05-26 | 2021-05-26 | Pneumatic piston driving rotary centering clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214722544U (en) |
-
2021
- 2021-05-26 CN CN202121150875.1U patent/CN214722544U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113146313A (en) | Pneumatic piston driving rotary centering clamp | |
| CN106286183B (en) | The inclined disc type axial work-plunger pump of fluid energy recycling can be achieved | |
| CN109290792A (en) | A kind of Inner part of water valve automated assembly line | |
| CN208601062U (en) | A kind of elder generation's inner support outer clip fixture again | |
| CN1438092A (en) | Clamp working-station detection apparatus | |
| CN205968344U (en) | Mortise lock formula quick change at zero point device | |
| CN204658033U (en) | Self-align revolution Pneumatic hydraulic clamping device | |
| CN214722544U (en) | Pneumatic piston driving rotary centering clamp | |
| CN206185558U (en) | Same internal hole positioning and closing device | |
| CN206153602U (en) | Radial plunger hydraulic motor drive's of outer curve wedge type power chuck | |
| CN201711843U (en) | Flexible clamp dedicated for positioning needle valve body pressure chamber | |
| CN108214042A (en) | Quick change flexible fixture and application method | |
| CN208543246U (en) | It improves wheel machining center and turns material positioning device | |
| CN106969688A (en) | A kind of piston ring detecting tool | |
| CN108000192A (en) | A kind of three disjunctor fixture of mould small workpiece for being applied to four axis lathes | |
| CN205465654U (en) | Dysmorphism hole honing head | |
| CN213673063U (en) | Self-centering device for large tubular workpiece | |
| CN206912763U (en) | A kind of Pneumatic quick-replacing device | |
| CN109986385A (en) | A kind of antenna house vacuum adsorption fixture | |
| CN201565848U (en) | Honing clamp of thin-wall cylinder sleeve | |
| CN204770161U (en) | Plastic equipment of annular metallic spare | |
| CN211661549U (en) | Shifting fork shaft pin hole machining and positioning device | |
| CN207696106U (en) | A kind of three disjunctor fixture of mold small workpiece being applied to four axis lathes | |
| CN207736227U (en) | Pneumatic press-fit bushing device | |
| CN208357957U (en) | The pneumatic quick benchmark collet of HHT higher high tensile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |