CN220497807U - Double-sided clamping chuck - Google Patents

Abstract

The embodiment provides a double-sided clamping chuck, which comprises a shell, a clamping unit and a driving unit, wherein a first disc body and a second disc body are respectively installed at two ends of the shell, through holes are formed in the first disc body and the second disc body, two clamping units are arranged and are respectively positioned on the first disc body and the second disc body, the clamping unit comprises a first mounting frame and a second mounting frame, the first mounting frame and the second mounting frame are respectively arranged outside the first disc body and the second disc body, a heightening block is fixedly installed at the bottom end of the first mounting frame, and clamping rods are fixedly installed on the first mounting frame and the second mounting frame; according to the utility model, the clamping assemblies are arranged on the first disc body and the second disc body, so that the contact area between the clamping assemblies and the workpiece can be increased, the clamping effect is improved, the workpiece can be clamped firmly in a penetrating manner, the workpiece can be clamped firmly, and the circular workpiece and the square workpiece can be clamped firmly.

Description

Double-sided clamping chuck

Technical Field

The utility model relates to the technical field of chucks, in particular to a double-sided clamping chuck.

Background

When cutting pipes or bars using equipment such as a laser pipe cutter and a CNC machine, it is generally necessary to use a chuck for holding the pipe or bar.

To further understand the chuck of the prior art, the publication number is, by search: chinese patent CN104439350a discloses a chuck comprising: the chuck body is round, a plurality of guide rails are arranged on the chuck body, and locking nuts are arranged on the guide rails; the clamping jaw is arc-shaped, a guide block is arranged on the outer arc of the clamping jaw, the guide block is inserted into the guide rail, a buffer pad is arranged on the inner arc of the clamping jaw, the clamping jaw is divided into a left structure and a right structure, and the left part and the right part of the clamping jaw are connected through a spring return device.

Through exploring and analyzing, the patent has the following defects in actual use:

in the patent, only one surface of the chuck body is provided with a plurality of groups of clamping jaws for clamping a workpiece, and for a bar-shaped or square pipe with larger weight, the clamping jaws with an arc-shaped structure have limited contact area with the workpiece, so that the conditions of unstable clamping and unstable shaking exist;

disclosure of Invention

Aiming at the technical problems that in the prior art, only one surface of a chuck body is provided with a plurality of groups of clamping jaws for clamping a workpiece, and for rod-shaped or square pipes with larger weight, the clamping jaws with arc structures have limited contact areas with the workpiece, so that the conditions of unstable clamping and unstable shaking exist.

The technical scheme adopted by the utility model is as follows: the utility model provides a two-sided centre gripping chuck, includes shell, clamping unit and drive unit, first disk body and second disk body are installed respectively at the both ends of shell, all be equipped with the through-hole on first disk body and the second disk body, clamping unit is equipped with two, is located first disk body and the second disk body respectively, clamping unit includes first mounting bracket and second mounting bracket, the outside of first disk body and second disk body all is equipped with first mounting bracket and second mounting bracket, the bottom of first mounting bracket still fixed mounting has the bed hedgehopping piece, all fixed mounting has the grip stick on first mounting bracket and the second mounting bracket, drive unit also is equipped with two sets of, all is located the shell for the clamping unit motion on first mounting bracket and the second mounting bracket.

Further, the drive unit includes ring gear, first gear, cylinder and rocker, the ring gear rotates and installs between first disk body and second disk body, the cylinder articulates between first disk body and second disk body, the piston rod of cylinder articulates with the ring gear, first gear rotates and installs between first disk body and second disk body, rocker fixed mounting is on first gear, the outside slidable mounting of first disk body and second disk body has multiunit ejector pad, ejector pad respectively with bed up piece and second mounting bracket fixed connection, fixed mounting has multiunit slide rail on the outer wall of first disk body and second disk body, slidable mounting has the slider in the slide rail, the bottom of slider is equipped with the recess, the cylindric lock is installed in the one end rotation of rocker, the cylindric lock is located the recess, first gear and ring gear meshing.

Further, a hinge seat is fixedly arranged outside the gear ring, and a piston rod of the air cylinder is rotationally connected with the hinge seat.

Further, the drive unit includes ring gear, motor and steering column, the outside of first disk body and second disk body is all fixed mounting has the track, equal slidable mounting has the slide on the track, the multiunit the slide respectively with second mounting bracket and backing block fixed connection, the ring gear rotates and installs between first disk body and second disk body, motor fixed mounting is between first disk body and second disk body, the equal fixedly connected with rack of lateral wall of slide, the steering column rotates and installs between first disk body and second disk body, the both ends of steering column are fixedly connected with second gear and third gear respectively, the drive shaft fixedly connected with fourth gear of motor, second gear and rack toothing, third gear and ring gear meshing, fourth gear and ring gear meshing.

Further, a supporting frame is fixedly arranged outside the shell.

Further, a fluted disc is fixedly sleeved outside the second disc body, a fifth gear is rotatably arranged outside the shell, the fifth gear is meshed with the fluted disc, a driving machine is fixedly arranged outside the shell, and a driving shaft of the driving machine is fixedly connected with the fifth gear.

Further, a hanging ring is fixedly arranged outside the shell.

The beneficial effects of the utility model are as follows: compared with the prior art, the clamping assemblies are arranged on the first disc body and the second disc body, so that the contact area between the clamping assemblies and the workpiece can be increased, the clamping effect is improved, the workpiece can be clamped firmly in a penetrating mode, the workpiece can be clamped firmly, and the round workpiece and the square workpiece can be clamped firmly.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of another aspect of the present utility model;

FIG. 3 is a schematic diagram of a driving unit according to a first embodiment of the present utility model;

fig. 4 is a schematic diagram showing an internal structure of a driving unit according to a first embodiment of the present utility model;

FIG. 5 is a schematic view of the structure of the slider of the present utility model;

fig. 6 is a schematic structural diagram of a driving unit in the second embodiment of the present utility model;

fig. 7 is a schematic diagram showing an internal structure of a driving unit in the second embodiment of the present utility model;

FIG. 8 is a schematic side view of a second embodiment of the present utility model in which two drive units are stacked;

FIG. 9 is a schematic view of a toothed disc according to the present utility model.

Marked in the figure as: 1. a housing; 2. a first tray; 3. a second tray body; 4. a pushing block; 5. a first mounting frame; 6. a lifting block; 7. a second mounting frame; 8. a clamping rod; 9. a slide block; 10. a slide rail; 11. a gear ring; 12. a hinge base; 13. a cylinder; 14. a first gear; 15. a rocker; 16. a cylindrical pin; 17. a groove; 18. a track; 19. a slide plate; 20. a rack; 21. a toothed ring; 22. a motor; 23. a rotating rod; 24. a second gear; 25. a third gear; 26. a fourth gear; 27. fluted disc; 28. and a fifth gear.

Detailed Description

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "front", "upper", "lower", "left", "right", "vertical", "horizontal", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The utility model will be further described with reference to fig. 1-9.

In order to solve the problems in the background technology, the application provides the following technical scheme: a double-sided clamping chuck,

example 1

Comprising a housing 1, a clamping unit and a drive unit.

Wherein, the support frame is fixedly installed outside the shell 1, and the hanging ring is fixedly installed outside the shell 1.

In this application, install first disk body 2 and second disk body 3 respectively at the both ends of shell 1, all be equipped with the through-hole on first disk body 2 and the second disk body 3 for place the work piece.

The two clamping units are specifically arranged and are respectively positioned on the first disc body 2 and the second disc body 3.

Wherein the clamping unit comprises a first mounting frame 5 and a second mounting frame 7;

the specific design is as follows

And all be equipped with first mounting bracket 5 and second mounting bracket 7 in the outside of first disk body 2 and second disk body 3, the bottom of first mounting bracket 5 still fixed mounting has the bed hedgehopping piece 6, through the setting of bed hedgehopping piece 6, can let the height of first mounting bracket 5 be higher than second mounting bracket 7, and all fixed mounting has grip bar 8 on first mounting bracket 5 and second mounting bracket 7, so grip bar 8 on first mounting bracket 5 and grip bar 8 on second mounting bracket 7 can carry out the stack setting, so this equipment is through grip bar 8 stack type centre gripping, not only can firm carry out the centre gripping to the work piece, but also can both carry out the centre gripping (square tube and circular pipe) to square work piece and circular work piece.

In order to achieve a movement of the first mounting 5 and the second mounting 7, drive units are provided, which are also provided in two groups, both in the housing 1, for driving the clamping units on the first mounting plate and the second mounting plate in movement.

The drive unit comprises a gear ring 11, a first gear 14, a cylinder 13 and a rocker 15.

Meanwhile, in the application, the gear ring 11 is rotatably arranged between the first disc body 2 and the second disc body 3, the air cylinder 13 is hinged between the first disc body 2 and the second disc body 3, a piston rod of the air cylinder 13 is hinged with the gear ring 11, a hinge seat 12 is fixedly arranged outside the specific gear ring 11, the piston rod of the air cylinder 13 is rotatably connected with the hinge seat 12, and the purpose is that the gear ring 11 can be driven to rotate through the work of the air cylinder 13.

Further describing, the first gear 14 is rotatably installed between the first disc 2 and the second disc 3, the rocker 15 is fixedly installed on the first gear 14, and a plurality of groups of pushing blocks 4 are slidably installed outside the first disc 2 and the second disc 3.

The push block 4 is fixedly connected with the elevating block 6 and the second mounting frame 7, and the slide block 9 can drive the push block 4 to slide synchronously when driving the elevating block 6 or the second mounting frame 7 to slide.

For guiding, so fixedly mounting has multiunit slide rail 10, specifically four on the outer wall of first disk body 2 and second disk body 3, and slidable mounting has slider 9 on slide rail 10, and slider 9 and the cooperation of slide rail 10 are used for guiding the slip, and the bottom of slider 9 is equipped with recess 17, and cylindric lock 16 is installed in the rotation of one end of rocker 15, and cylindric lock 16 is located recess 17, and first gear 14 meshes with ring gear 11, and when the aim at rocker 15 rotated, through the promotion of cylindric lock 16 in recess 17, can let slider 9 slide.

Specific reference is made to the following operations

Placing a workpiece in the through hole, starting the air cylinder 13 to work, wherein the air cylinder 13 pushes the hinging seat 12 to drive the gear ring 11 to rotate, the gear ring 11 can drive the first gear 14 to rotate, the first gear 14 drives the rocker 15 to rotate, the rocker 15 drives the cylindrical pin 16 to rotate, and then the cylindrical pin 16 can push the sliding block 9 to slide forwards or backwards under the action of Cao Ao; the sliding block 9 drives the pushing block 4 to slide, meanwhile, the pushing block 4 drives the first mounting frame 5 and the second mounting frame 7 to slide, and the workpiece can be clamped through the clamping rods 8 because the two first mounting frames 5 slide in opposite directions and the two second mounting frames 7 slide in opposite directions; after clamping, the workpiece is processed.

Example two

Referring to fig. 6 to 8, the present embodiment differs from the first embodiment in that the driving unit in the present embodiment includes a toothed ring 21, a motor 22, and a rotary column.

Specifically, the rails 18 are fixedly installed on the outer portions of the first tray body 2 and the second tray body 3, four rails 18 are fixedly installed on the outer portions of the first tray body 2 and the second tray body 3 respectively, and a sliding plate 19 is slidably installed on each rail 18.

Wherein, multiunit slide 19 respectively with second mounting bracket 7 and bed hedgehopping piece 6 fixed connection, the purpose drives second mounting bracket 7 and bed hedgehopping piece 6 and carries out synchronous slip when slide 19 slides.

Further description

The toothed ring 21 is also rotatably mounted between the first disc 2 and the second disc 3, and the motor 22 is fixedly mounted between the first disc 2 and the second disc 3.

In order to realize transmission, racks 20 are fixedly connected to the side walls of the sliding plates 19, a rotary column is rotatably arranged between the first disc body 2 and the second disc body 3, and two ends of the rotary column are fixedly connected with a second gear 24 and a third gear 25 respectively, so that a toothed ring 21 rotates, and the toothed ring 21 drives the third gear 25 to rotate;

the driving shaft of the motor 22 is fixedly connected with a fourth gear 26, the second gear 24 is meshed with the rack 20, the third gear 25 is meshed with the toothed ring 21, the fourth gear 26 is meshed with the toothed ring 21, the motor 22 is used as a power source, the motor 22 is used for driving the fourth gear 26 to rotate, and the fourth gear 26 drives the toothed ring 21 to rotate.

In particular as follows,

placing a workpiece in the through hole, starting a motor 22 to drive a fourth gear 26 to rotate, enabling the fourth gear 26 to drive a toothed ring 21 to rotate, enabling the toothed ring 21 to drive a third gear 25 to rotate, enabling the third gear 25 to drive a second gear 24 to rotate through a rotating rod 23, enabling the second gear 24 to drive a rack 20 to slide, enabling the rack 20 to drive a sliding plate 19 to slide, enabling the sliding plate 19 to drive a lifting block 6 and a second mounting frame 7 to slide, enabling the lifting block 6 to drive a first mounting frame 5 to slide, enabling the two first mounting frames 5 to slide in opposite directions, enabling the two second mounting frames 7 to slide in opposite directions, and enabling a workpiece to be clamped through a clamping rod 8; after clamping, the workpiece is processed.

Example III

As a preferred embodiment, this embodiment differs from the first embodiment by referring to fig. 9.

In this application, still the outside at second disk body 3 still fixed cover is equipped with fluted disc 27, and fluted disc 27's central authorities are hollow structure, and fifth gear 28 is installed in the outside rotation of shell 1, and fifth gear 28 meshes with fluted disc 27, and the outside of shell 1 still fixed mounting has the driving machine, and the drive shaft and the fifth gear 28 fixed connection of driving machine.

Specifically, after the workpiece is clamped, the driving machine can be controlled to drive the fifth gear 28 to rotate, and the second disc body 3 can be driven to rotate through the engagement of the fifth gear 28 and the fluted disc 27, so that the workpiece is driven to rotate, and the processing position is switched.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional modes in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that details are not described in detail in the specification, and the utility model belongs to the prior art known to the person skilled in the art.

Although embodiments of the present utility model have been shown and described, it will be obvious to those skilled in the art that the scope of the present utility model is defined by the appended claims and equivalents thereof.

Claims (5)

1. A double-sided clamping chuck, comprising

The novel disc comprises a shell (1), wherein a first disc body (2) and a second disc body (3) are respectively arranged at two ends of the shell (1), and through holes are formed in the first disc body (2) and the second disc body (3);

the clamping units are arranged and are respectively located on the first disc body (2) and the second disc body (3), each clamping unit comprises a first mounting frame (5) and a second mounting frame (7), the first mounting frames (5) and the second mounting frames (7) are respectively arranged outside the first disc body (2) and the second disc body (3), a lifting block (6) is fixedly installed at the bottom end of each first mounting frame (5), and clamping rods (8) are fixedly installed on each first mounting frame (5) and each second mounting frame (7);

the driving units are also provided with two groups and are both positioned in the shell (1) and used for driving the clamping units on the first mounting plate and the second mounting plate to move;

the driving unit comprises a gear ring (11), a first gear (14), an air cylinder (13) and a rocker (15), wherein the gear ring (11) is rotatably arranged between a first disc body (2) and a second disc body (3), the air cylinder (13) is hinged between the first disc body (2) and the second disc body (3), a piston rod of the air cylinder (13) is hinged with the gear ring (11), the first gear (14) is rotatably arranged between the first disc body (2) and the second disc body (3), the rocker (15) is fixedly arranged on the first gear (14), a plurality of groups of pushing blocks (4) are slidably arranged outside the first disc body (2) and the second disc body (3), the pushing blocks (4) are fixedly connected with a heightening block (6) and a second mounting frame (7), a plurality of groups of sliding rails (10) are fixedly arranged on the outer walls of the first disc body (2) and the second disc body (3), a sliding block (9) is slidably arranged in the sliding rails (10), a groove (9) is formed in the bottom end of the first disc body (2) and is provided with a cylindrical pin (16), and the bottom end of the rocker (16) is rotatably engaged with the gear (16) in the gear ring (11);

or alternatively, the first and second heat exchangers may be,

the driving unit comprises a toothed ring (21), a motor (22) and a rotating column, wherein rails (18) are fixedly arranged outside the first disk body (2) and the second disk body (3), sliding plates (19) are slidably arranged on the rails (18), multiple groups of sliding plates (19) are fixedly connected with a second mounting frame (7) and a heightening block (6) respectively, the toothed ring (21) is rotatably arranged between the first disk body (2) and the second disk body (3), the motor (22) is fixedly arranged between the first disk body (2) and the second disk body (3), racks (20) are fixedly connected to the side walls of the sliding plates (19), the rotating column is rotatably arranged between the first disk body (2) and the second disk body (3), two ends of the rotating column are fixedly connected with a second gear (24) and a third gear (25) respectively, a driving shaft of the motor (22) is fixedly connected with a fourth gear (26), and the second gear (24) is meshed with the racks (20), and the third gear (25) is meshed with the toothed ring (21).

2. A double-sided clamping chuck according to claim 1, characterized in that the outside of the gear ring (11) is fixedly provided with a hinge seat (12), and the piston rod of the cylinder (13) is rotatably connected with the hinge seat (12).

3. A double-sided clamping chuck according to claim 2, characterized in that the outer part of the housing (1) is fixedly mounted with a support frame.

4. A double-sided clamping chuck according to claim 3, characterized in that the outer part of the second disc body (3) is fixedly sleeved with a fluted disc (27), a fifth gear (28) is rotatably arranged on the outer part of the housing (1), the fifth gear (28) is meshed with the fluted disc (27), a driving machine is fixedly arranged on the outer part of the housing (1), and a driving shaft of the driving machine is fixedly connected with the fifth gear (28).

5. A double-sided clamping chuck according to claim 4, characterized in that the outer part of the housing (1) is fixedly fitted with a suspension ring.