CN219426825U - Clamping device - Google Patents

Abstract

The application provides a clamping device contains the grip slipper, still includes: the clamping assembly comprises at least one pair of clamping pieces arranged on two sides of the clamping seat, each clamping piece comprises a plurality of shells which are hinged in sequence, one ends of the shells are connected to the clamping seat, and the other ends of the shells are used for bending towards the other clamping piece; the stretching assembly comprises a stretching driving piece and a stretching piece, wherein the stretching driving piece is connected in one of the shells close to the clamping seat, the stretching driving piece is connected with the stretching piece, the stretching piece is connected in one of the shells far away from the clamping seat, and the stretching driving piece is used for dragging the stretching piece to move close to or far away from the clamping seat. The clamping device can rotate different angles and enable the surfaces of the plurality of shells to be attached to the surfaces of the workpieces when the clamping device clamps the workpieces, so that the contact surfaces of the plurality of shells and the workpieces are large, the positions of clamping forces suffered by the workpieces are distributed uniformly, the clamping of the workpieces is stable, the workpieces are not easy to slide in the moving process, and the placing positions are accurate.

Description

Clamping device

Technical Field

The application relates to the technical field of workpiece clamping, in particular to a clamping device.

Background

At present, when some clamping devices grab, move and place workpieces, the contact surface of the clamping devices and the workpieces is smaller due to the irregular surface of the clamped workpieces, so that the positions of clamping forces suffered by the clamped workpieces are unevenly distributed, the workpiece clamping is unstable, and the sliding and placing positions are inaccurate in the moving process easily, so that the normal operation of subsequent processing is affected.

Disclosure of Invention

In view of the above problems, the present application provides a clamping device to solve the technical problems of unstable workpiece clamping, easy sliding in the moving process and inaccurate placement position.

The application provides a clamping device contains the grip slipper, still includes: the clamping assembly comprises at least one pair of clamping pieces arranged on two sides of the clamping seat, each clamping piece comprises a plurality of shells which are hinged in sequence, one ends of the shells are connected to the clamping seat, and the other ends of the shells are used for bending towards the other clamping piece to clamp a workpiece; the stretching assembly comprises a stretching driving piece and a stretching piece, wherein the stretching driving piece and the stretching piece are arranged corresponding to the clamping piece respectively, the stretching driving piece is connected in the shell close to one of the clamping seats, the driving end of the stretching driving piece is connected with one end of the stretching piece, the other end of the stretching piece is connected in the shell far away from one of the clamping seats, and the stretching driving piece is used for pulling the stretching piece to move close to or far away from the clamping seats so as to enable the clamping piece to bend or release bending, and therefore a workpiece is clamped or loosened.

In some embodiments, when the clamping members are a pair, a pair of the clamping members are disposed opposite each other; when the clamping pieces are in a plurality of pairs, the clamping pieces are oppositely arranged or staggered.

In some embodiments, the clamping assembly further comprises a plurality of hinges disposed in correspondence with the clamping members, the hinges comprising: the rotating shafts are arranged in the shells, parts between two adjacent shells are sleeved, and each end of each rotating shaft is rotationally connected with the sleeved parts of the two adjacent shells; the movable shaft is arranged in the shell, is positioned between the rotating shaft and the inner wall of the shell opposite to the rotating shaft, and each end of the movable shaft is movably connected with the sleeved parts of two adjacent shells; the elastic piece is arranged on the rotating shaft in the shell, two end parts of the elastic piece are movably arranged in the shell and used for propping against the inner wall of the shell when a plurality of shells are stressed, so that the movable shaft drives the corresponding connected shells to rotate relative to the adjacent shells by taking the rotating shaft as a rotating center, and the shells are bent.

In some embodiments, the sleeved portions of two adjacent shells are respectively provided with a first hole and a second hole, and each end of the rotating shaft is arranged in the first hole and the second hole.

In some embodiments, the sleeved parts of two adjacent shells are respectively provided with a third hole and a fourth hole, the aperture of the fourth hole is larger than that of the third hole, the fourth hole is formed in the two adjacent shells and positioned on the inner shell, and each end of the movable shaft is arranged in the third hole and the fourth hole and is matched with the aperture of the third hole.

In some embodiments, the hinge further comprises: the limiting shaft is arranged in the shell and is positioned between the movable shaft and the inner wall of the shell opposite to the rotating shaft, and each end of the movable shaft is connected to one shell; wherein the tension member is located between the limit shaft and the movable shaft.

In some embodiments, a fifth hole is provided in the inner one of the two adjacent housings, and each end of the limiting shaft is provided in the fifth hole.

In some embodiments, the plurality of shells decrease in size perpendicular to the bending plane along an end of the plurality of shells connected to the clamping seat to an end of the plurality of shells away from the clamping seat.

In some embodiments, the clamping assembly further comprises: the dustproof piece is arranged on the grabbing surfaces of the plurality of shells, and the grabbing surfaces are correspondingly arranged on the inner walls of the shells opposite to the rotating shaft so as to prevent dust from entering the shells.

In some embodiments, the number of the shells is at least greater than three, and an end of the stretching member away from the stretching driving member is connected to the third last shell away from the end of the clamping seat.

The clamping device comprises a clamping assembly, wherein the clamping assembly comprises a plurality of shells which are hinged sequentially, the shells can rotate different angles and enable the surfaces of the shells to be attached to the surfaces of the workpieces when being clamped, so that the contact surfaces of the shells and the workpieces are large, the clamping force positions suffered by the workpieces are distributed uniformly, the clamping of the workpieces is stable, the workpieces are not easy to slide in the moving process, the placing position is accurate, and the normal operation of subsequent processing is not affected.

Drawings

Fig. 1 is a schematic perspective view of a clamping device in an unclamped state according to an embodiment of the present application.

Fig. 2 is a schematic perspective view of a gripping device in a gripping state according to an embodiment of the present application.

Fig. 3 is a partially exploded view of the clip of fig. 1.

Fig. 4 is an enlarged view of a portion of the clamp of fig. 3 at IV.

Description of the main reference signs

Clamping device 100

Clamping seat 10

Clamping assembly 20

Clamping piece 21

Housing 211

First hole 2111

Second hole 2112

Third hole 2113

Fourth hole 2114

Fifth hole 2115

Gripping surface 2116

Hinge 22

Rotation shaft 221

Movable shaft 222

Elastic member 223

Limiting shaft 224

Dust-proof member 23

Rolling member 24

Stretching assembly 30

Tension driving member 31

Stretching member 32

Detailed Description

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, and the described embodiments are merely some, rather than all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Referring to fig. 1 and 2, a clamping device 100 is provided for gripping a workpiece (not shown), in this embodiment, a surface of the workpiece may be flat or uneven, and the workpiece is an exemplary bundle of cigarettes in a cigarette basket. Specifically, the clamping device 100 includes a clamping base 10, a clamping assembly 20, and a stretching assembly 30.

The clamping assembly 20 includes at least one pair of clamping members 21 provided at both sides of the clamping base 10, each clamping member 21 includes a plurality of housings 211 hinged in sequence, one end of the plurality of housings 211 is connected to the clamping base 10, the other end is used for bending toward the other clamping member 21 to clamp a workpiece, in this embodiment, the plurality of housings 211 are taken as a whole, and one end and the other end of the plurality of housings 211 are both ends of the whole. The stretching assembly 30 includes a stretching driving member 31 and a stretching member 32, which are disposed corresponding to the clamping member 21, the stretching driving member 31 is connected in one of the housings 211 near the clamping seat 10, and the driving end of the stretching driving member 31 is connected with one end of the stretching member 32, the other end of the stretching member 32 is connected in one of the housings 211 far away from the clamping seat 10, and the stretching driving member 31 is used for pulling the stretching member 32 to move near or far away from the clamping seat 10, so that the clamping member 21 bends or unbends, and the workpiece is clamped or released. In this embodiment, a stretching assembly 30 is disposed in each clamping member 21. The stretching driving member 31 is a telescopic cylinder. The stretching member 32 is a stretchable band or a stretchable rope, but is not limited thereto, and the stretching member 32 may be stretched by the driving of the stretching driving member 31.

In the present embodiment, the number of the holders 21 is three, and the three pairs of holders 21 are each provided.

It will be appreciated that in other embodiments, the clamping members 21 are three pairs, and the three pairs of clamping members 21 are offset.

It will be appreciated that in other embodiments, the clamping members 21 are three pairs, at least one pair of the three pairs of clamping members 21 being disposed opposite each other, at least one pair being disposed offset from each other.

It will be appreciated that in other embodiments, the clamping members 21 are in a pair, with the pair of clamping members 21 being disposed opposite each other.

Referring to fig. 3 and 4, the clamping assembly 20 further includes a plurality of hinge members 22, wherein the hinge members 22 are disposed corresponding to the sleeved portions of the two adjacent housings 211, each hinge member 22 includes a rotation shaft 221, a movable shaft 222, and an elastic member 223, the rotation shaft 221 is disposed in the housing 211, and each end of the rotation shaft 221 is rotatably connected to the sleeved portion of the two adjacent housings 211; the movable shaft 222 is disposed in the housing 211 and is disposed parallel to the rotation shaft 221, and the movable shaft 222 is disposed between the rotation shaft 221 and an inner wall of the housing 211 opposite to the rotation shaft 221, wherein the inner wall of the housing 211 opposite to the rotation shaft 221 is an inner wall on the right side of each housing 211 in fig. 3, and each end of the movable shaft 222 is movably connected to a sleeved portion of two adjacent housings 211; the elastic member 223 is disposed on the rotation shaft 221 in the housing 211, and two ends of the elastic member 223 are movably disposed in the housing 211, so as to support the inner wall of the housing 211 when the plurality of housings 211 are stressed, so that the movable shaft 222 drives the corresponding connected housings 211 to rotate relative to the adjacent housings 211 with the rotation shaft 221 as a rotation center, thereby bending the plurality of housings 211 and capturing the workpiece. In the present embodiment, the elastic member 223 is a compression spring.

With continued reference to fig. 4, the sleeved portions of two adjacent housings 211 are respectively provided with a first hole 2111 and a second hole 2112, the first hole 2111 is formed in the outer housing 211 of the two housings 211, the second hole 2112 is formed in the inner housing 211 of the two housings 211, and each end of the rotation shaft 221 is disposed in the first hole 2111 and the second hole 2112 and is rotatable in the first hole 2111 and the second hole 2112.

The sleeved portions of the two adjacent housings 211 are respectively provided with a third hole 2113 and a fourth hole 2114, the third hole 2113 is formed in the outer housing 211 of the two housings 211, the fourth hole 2114 is formed in the inner housing 211 of the two housings 211, the aperture of the fourth hole 2114 is larger than that of the third hole 2113, and each end of the movable shaft 222 is arranged in the third hole 2113 and the fourth hole 2114 and is matched with the aperture of the third hole 2113. In the present embodiment, the fourth hole 2114 has an elliptical shape, and can rotate the case 211 positioned inside with respect to the case 211 positioned outside about the rotation axis 221.

The hinge 22 further includes a limiting shaft 224, the limiting shaft 224 is disposed in the housing 211 and is respectively parallel to the rotating shaft 221 and the movable shaft 222, the limiting shaft 224 is disposed between the movable shaft 222 and an inner wall of the housing 211 opposite to the rotating shaft 221, and each end of the movable shaft 222 is connected to the housing 211; wherein the tension member 32 is located between the limiting shaft 224 and the movable shaft 222, such that the limitation of the position of the tension member 32 can be achieved, thereby preventing the tension member 32 from being deviated.

A fifth hole 2115 is provided in the inner housing 211 of the adjacent two housings 211, and each end of the stopper shaft 224 is provided in the fifth hole 2115.

The clamping assembly 20 further includes a dust-proof member 23, where the dust-proof member 23 is disposed on a gripping surface 2116 of the plurality of housings 211, and the gripping surface 2116 is disposed corresponding to an inner wall of the housing 211 opposite to the rotation shaft 221, so as to prevent dust from entering the housing 211, i.e., the gripping surface 2116 is an outer side surface of the housing 211 corresponding to the inner wall opposite to the rotation shaft 221. In the present embodiment, the dust guard 23 is a dust guard.

With continued reference to fig. 3, along one end of the plurality of housings 211 connected to the holder 10, to one end of the plurality of housings 211 remote from the holder 10, the plurality of housings 211 gradually decrease in size perpendicular to the bending plane, i.e. the size H, so that the resistance of gripping the workpiece can be reduced.

The number of the shells 211 is at least greater than three, and the end of the stretching element 32 far away from the stretching driving element 31 is connected with the third last shell 211 or the limiting shaft 224 far away from the end of the clamping seat 10, because the first last shell 211 and the second last shell 211 far away from the end of the clamping seat 10 have small functions when gripping large workpieces and can freely move under the action of the elastic element 223, so that the driving force of the stretching driving element 31 can play a better gripping effect even if smaller. In the present embodiment, the number of the housings 211 is 9, and one end of the stretching member 32 away from the stretching driving member 31 is connected to the limit shaft 224 between the penultimate housing 211 and the penultimate housing 211 at one end away from the holder 10.

It is understood that in other embodiments, the number of housings 211 may be 7 or 12, but is not limited thereto.

It will be appreciated that in other embodiments, the end of the tension member 32 remote from the tension drive member 31 is connected to the penultimate housing 211 or the second housing 211 remote from the end of the holder 10.

The grabbing assembly further comprises rolling members 24, and the rolling members 24 are arranged on one ends of the plurality of shells 211 far away from the clamping seat 10 in a rolling manner so as to facilitate the plurality of shells 211 to move. In the present embodiment, the rolling member 24 is a roller.

In the above-described clamping device 100, the stretching member 32 is pulled to move away from the clamping seat 10 by the stretching driving member 31, so that the plurality of housings 211 are released from bending, that is, as shown in fig. 1, the clamping member 21 does not grasp the workpiece at this time; the plurality of housings 211 can be bent by pulling the stretching member 32 to move close to the holder 10 by the stretching driving member 31, that is, as shown in fig. 2, when the workpiece is gripped by the holder 21; so, through the drive of tensile driving piece 31, can realize snatching and placing the work piece, because clamping assembly 20 includes a plurality of articulated shells 211 in proper order, a plurality of shells 211 can rotate different angles and make its surface can laminate with the surface of work piece mutually when pressing from both sides and get to make the contact surface of a plurality of shells 211 and work piece great, the clamping force position that the work piece received distributes evenly, and the centre gripping of work piece is comparatively firm, is difficult for sliding at the removal in-process, and the position of placing is also comparatively accurate, does not influence the normal operating of follow-up processing.

It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is evident that the word "comprising" does not exclude other elements or steps, and that the singular does not exclude a plurality. Multiple units or computer means recited in the computer means claim may also be implemented by means of software or hardware by means of the same unit or computer means. The terms first, second, etc. are used to denote a name, but not any particular order.

Finally, it should be noted that the above embodiments are merely for illustrating the technical solution of the present application and not for limiting, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or substituted without departing from the spirit and scope of the technical solution of the present application.

Claims (10)

1. A clamping device comprising a clamping seat, characterized in that it further comprises:

the clamping assembly comprises at least one pair of clamping pieces arranged on two sides of the clamping seat, each clamping piece comprises a plurality of shells which are hinged in sequence, one ends of the shells are connected to the clamping seat, and the other ends of the shells are used for bending towards the other clamping piece to clamp a workpiece;

the stretching assembly comprises a stretching driving piece and a stretching piece, wherein the stretching driving piece and the stretching piece are arranged corresponding to the clamping piece respectively, the stretching driving piece is connected in the shell close to one of the clamping seats, the driving end of the stretching driving piece is connected with one end of the stretching piece, the other end of the stretching piece is connected in the shell far away from one of the clamping seats, and the stretching driving piece is used for pulling the stretching piece to move close to or far away from the clamping seats so as to enable the clamping piece to bend or release bending, and therefore a workpiece is clamped or loosened.

2. The clamping device as claimed in claim 1, wherein when said clamping members are a pair, a pair of said clamping members are disposed opposite each other; when the clamping pieces are in a plurality of pairs, the clamping pieces are oppositely arranged or staggered.

3. The clamping device of claim 1, wherein portions of two adjacent housings are nested, the clamping assembly further comprising a plurality of hinges disposed corresponding to the nested portions of two adjacent housings, the hinges comprising:

the rotating shafts are arranged in the shells, and each end of each rotating shaft is rotationally connected with the sleeved parts of two adjacent shells;

the movable shaft is arranged in the shell, is positioned between the rotating shaft and the inner wall of the shell opposite to the rotating shaft, and each end of the movable shaft is movably connected with the sleeved parts of two adjacent shells;

the elastic piece is arranged on the rotating shaft in the shell, two end parts of the elastic piece are movably arranged in the shell and used for propping against the inner wall of the shell when a plurality of shells are stressed, so that the movable shaft drives the corresponding connected shells to rotate relative to the adjacent shells by taking the rotating shaft as a rotating center, and the shells are bent.

4. A clamping device as claimed in claim 3, characterised in that the sleeved parts of two adjacent shells are provided with a first hole and a second hole respectively, and each end of the rotating shaft is arranged in the first hole and the second hole.

5. A clamping device according to claim 3, wherein the sleeved parts of two adjacent shells are respectively provided with a third hole and a fourth hole, the aperture of the fourth hole is larger than that of the third hole, the fourth hole is formed in the inner shell of the two adjacent shells, and each end of the movable shaft is arranged in the third hole and the fourth hole and is matched with the aperture of the third hole.

6. A gripping device according to claim 3, wherein said hinge further comprises:

the limiting shaft is arranged in the shell and is positioned between the movable shaft and the inner wall of the shell opposite to the rotating shaft, and each end of the movable shaft is connected to the shell;

wherein the tension member is located between the limit shaft and the movable shaft.

7. The clamping device as claimed in claim 6, wherein a fifth hole is provided in the inner one of the two adjacent housings, and each end of the limiting shaft is provided in the fifth hole.

8. The clamping device of claim 1 wherein the plurality of shells decrease in size perpendicular to the plane of curvature along the plurality of shells from an end of the shells attached to the clamping seat to an end of the plurality of shells remote from the clamping seat.

9. A clamping device as claimed in claim 3, wherein the clamping assembly further comprises:

the dustproof piece is arranged on the grabbing surfaces of the plurality of shells, and the grabbing surfaces are correspondingly arranged on the inner walls of the shells opposite to the rotating shaft so as to prevent dust from entering the shells.

10. The clamping device of claim 1, wherein the number of the shells is at least greater than three, and one end of the stretching member away from the stretching driving member is connected to the third last shell or the limiting shaft away from one end of the clamping seat.