CN220592773U - Material clamping device - Google Patents

Abstract

A clamping device for clamping a workpiece, comprising: the supporting mechanism comprises a supporting component and a limiting component, the supporting component is used for supporting the limiting component, and the limiting component is provided with an accommodating space; the clamping assemblies are arranged in a matrix, each clamping assembly comprises a sliding block, a connecting rod and a first elastic piece, the sliding blocks are movably arranged in the accommodating space, the connecting rods penetrate through the sliding blocks in a sliding mode and penetrate through the limiting assemblies, one ends of the connecting rods are elastically abutted to the supporting assemblies, and the first elastic pieces are arranged between the adjacent sliding blocks; the adjusting component comprises a pushing component and an adjusting component, the pushing component is movably arranged in the accommodating space, and the adjusting component is rotationally connected with the limiting component and is movably connected with the pushing component; the adjusting piece is used for driving the pushing piece to move towards the sliding block, so that the sliding block is close to each other, and the connecting rod is driven to be close to each other so as to clamp the workpiece. The clamping device is suitable for workpieces with various structures, and is convenient to use and stable in clamping.

Description

Material clamping device

Technical Field

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

Background

In the production and processing of some small-sized workpieces, the workpieces need to be polished, deburred and the like. Conventionally, a work is fixed by using a clamping tool, and then a machining operation such as polishing is performed. However, the conventional clamping tool can only clamp a plane, cannot be applied to a special-shaped workpiece, and the clamping of the special-shaped workpiece by using the conventional clamping tool can cause unstable clamping and damage to the workpiece easily.

Disclosure of Invention

In view of the above, it is necessary to provide a clamping device which is suitable for workpieces of various structures, and which is convenient to use and stable in clamping.

The embodiment of the application provides a clamping device for centre gripping work piece includes: the supporting mechanism comprises a supporting component and a limiting component, wherein the supporting component is used for supporting the limiting component, and the limiting component is provided with an accommodating space; the clamping assemblies are arranged in a matrix, each clamping assembly comprises a sliding block, a connecting rod and a first elastic piece, each sliding block is movably arranged in each accommodating space, each connecting rod penetrates through each sliding block in a sliding mode and penetrates through each limiting assembly, one end of each connecting rod is elastically abutted to each supporting assembly, each first elastic piece is arranged in each accommodating space, and each first elastic piece is arranged between every two adjacent sliding blocks; the adjusting component comprises a pushing piece and an adjusting piece, the pushing piece is movably arranged in the accommodating space, and the adjusting piece is rotatably connected with the limiting component and is movably connected with the pushing piece; the adjusting piece is used for rotating in the limiting assembly to drive the pushing piece to move towards the sliding block, so that the pushing piece pushes the sliding block to be close to each other, and one end, away from the supporting assembly, of the connecting rod is driven to be close to each other to clamp the workpiece.

Above-mentioned clamping device is provided with the centre gripping subassembly that the matrix was arranged, when the centre gripping work piece, places the work piece in the connecting rod upside of centre gripping subassembly, then presses the work piece, and the connecting rod supporting component that the work piece corresponds removes to supporting component, presses the work piece back rotation regulation piece, and the regulation piece is through pushing away the clamping component that the matrix was arranged and being close to each other the motion of pushing away the piece, and then makes the connecting rod that is close to the work piece press from both sides tight work piece. The clamping device is suitable for workpieces of various structures, is convenient to use, clamps the workpieces through the connecting rods, and is stable in clamping.

In some embodiments, the support assembly comprises a base, a plurality of side fixing plates, and a plurality of support columns, wherein the side fixing plates are connected to the upper side of the base and are arranged around the base, and the support columns are connected to the base and are arranged at intervals from the side fixing plates; the limiting assembly comprises a lower limiting plate, an upper limiting plate and a connecting block, wherein the lower limiting plate is connected to the supporting column at one end of the base, the upper limiting plate is arranged along the direction away from the base, the lower limiting plate is arranged at intervals and fixedly connected with the side fixing plates, the lower limiting plate and the upper limiting plate form an accommodating space therebetween, a plurality of through holes which are arranged in an array manner and correspondingly arranged are formed in the lower limiting plate and the upper limiting plate, the connecting rod penetrates through the through holes, the connecting blocks are respectively connected to the lower limiting plate and one corner of the same side of the upper limiting plate, and the regulating piece is connected with the connecting block in a rotating manner.

In some embodiments, the clamping assembly further comprises a second elastic member connected to an end of the connecting rod near the base, the second elastic member being abutted to the base and slidable on the base, the second elastic member being used for pushing the connecting rod to move away from the base.

In some embodiments, the clamping assembly further comprises a ball and a ball seat, the ball seat is connected to one end of the second elastic piece away from the connecting rod, the ball is arranged in the ball seat, and the ball is abutted to the base.

In some embodiments, the clamping assembly further comprises a limiting member, wherein the limiting member is sleeved on the connecting rod and arranged on the lower side of the lower limiting plate, and the limiting member is used for abutting the lower limiting plate when the second elastic member abuts against the connecting rod to move away from the base, so as to limit the connecting rod.

In some embodiments, the sliding block comprises a first sliding block and a second sliding block, the first sliding block and the second sliding block are alternately arranged in the matrix, a first protrusion is arranged around the first sliding block, a containing groove is formed in the first protrusion, the containing groove is used for containing one end of the first elastic piece, a first groove is formed around the second sliding block, the first protrusion is slidably inserted into the first groove, and the first groove is used for limiting the first protrusion.

In some embodiments, the adjusting assembly further comprises a fixing piece, wherein the fixing piece is fixedly arranged between the lower limiting plate and the upper limiting plate, and a limiting part is arranged on one side, facing the sliding block, of the fixing piece; a limiting groove is formed in one side, facing the sliding block, of the pushing piece; the sliding block further comprises a third sliding block and a fourth sliding block, the third sliding block is alternately arranged on four sides of the matrix and the first sliding block, a second bulge is arranged on one side face of the third sliding block, a second groove is formed in the other three side faces of the third sliding block, the second bulge is arranged on the lower side of the limiting part or movably inserted into the limiting groove, the limiting part or the limiting groove is used for limiting the second bulge, the second groove is used for accommodating the first bulge so as to limit the first bulge, the fourth sliding block is arranged at the corner of the matrix, a third bulge is arranged on two adjacent side faces of the fourth sliding block, a third groove is formed in the other two adjacent faces of the fourth sliding block, the third bulge is arranged on the lower side of the limiting part or movably inserted into the limiting groove so that the limiting part or the limiting groove limits the third bulge, and the third groove is used for accommodating the first bulge so as to limit the first bulge.

In some embodiments, the position where the fixing member contacts with the pushing member is inserted into the limiting groove, the limiting groove is further used for limiting the fixing member, and an opening is arranged at the position where the pushing member contacts with the fixing member and is used for keeping away the fixing member.

In some embodiments, a sliding groove is formed in one side, close to the pushing piece, of the lower limiting plate, a protruding block corresponding to the sliding groove is arranged on one side, close to the lower limiting plate, of the pushing piece, and the protruding block slides in the sliding groove to limit the pushing piece.

In some embodiments, a clamping portion is arranged at one end of the connecting rod away from the base, and the clamping portion is used for clamping the workpiece; the clamping assembly further comprises an anti-slip piece arranged on the clamping portion and used for contacting the workpiece when the workpiece is clamped by the clamping portion.

Drawings

Fig. 1 is a schematic structural diagram of a clamping device according to some embodiments of the present application.

FIG. 2 is a schematic cross-sectional view of the clamping device of FIG. 1 taken along line II-II.

Fig. 3 is a schematic view of the clamping device shown in fig. 1 after removing the side fixing plate.

Fig. 4 is an exploded view of the clamping device shown in fig. 1 with the side fixing plate removed.

Fig. 5 is a top view of a slider in the nip shown in fig. 4.

Fig. 6 is a schematic structural diagram of the clamping device shown in fig. 4 after various clamping components are disassembled.

Fig. 7 is a schematic view of a structure of the clamping device shown in fig. 4 at another angle after the various clamping components are disassembled.

Fig. 8 is a schematic structural diagram of a clamping device according to some embodiments of the present disclosure when clamping a workpiece.

FIG. 9 is a schematic cross-sectional view of the nip shown in FIG. 8 taken along line IX-IX.

Description of the main reference signs

Clamping device 100

Support mechanism 10

Support assembly 11

Base 111

Side fixing plate 112

Support column 113

Limiting assembly 12

Storage space 121

Lower limiting plate 122

Chute 1221

Upper limiting plate 123

Connecting block 124

Through hole 125

Clamping assembly 20

Slider 21

First slider 211

First protrusion 2111

Accommodation groove 2111a

Second slider 212

First groove 2121

Third slider 213

Second protrusion 2131

Second groove 2132

Fourth slider 214

Third protrusion 2141

Third groove 2142

Connecting rod 22

Clamping portion 221

First elastic member 23

Second elastic member 24

Ball 25

Ball seat 26

Stop 27

Anti-slip member 28

Adjustment assembly 30

Push member 31

Limiting groove 311

Opening 312

Bump 313

Adjusting member 32

Fixing member 33

Limiting part 331

Workpiece 200

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "orientation" or "positional relationship" as used herein are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, it is to be noted that the meaning of "a plurality" is two or more, unless specifically defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the term "connected" should be construed broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; the two components can be connected in a mechanical mode, can be electrically connected or can be communicated with each other, can be directly connected, can be indirectly connected through an intermediate medium, and can be communicated with each other inside the two components or can be in interaction relation with each other. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be. Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Embodiments of the present application are further described below with reference to the accompanying drawings.

Referring to fig. 1, some embodiments of the present application provide a clamping device 100 for clamping a workpiece 200 (referring to fig. 8), where the clamping device 100 includes a supporting mechanism 10, a plurality of clamping assemblies 20 and an adjusting assembly 30.

Specifically, referring to fig. 2, 3 and 4, the supporting mechanism 10 includes a supporting component 11 and a limiting component 12, the supporting component 11 is used for supporting the limiting component 12, and the limiting component 12 is provided with an accommodating space 121. The clamping assemblies 20 are arranged in a matrix, each clamping assembly 20 comprises a sliding block 21, a connecting rod 22 and a first elastic piece 23, each sliding block 21 is movably arranged in the corresponding accommodating space 121, each connecting rod 22 penetrates through each sliding block 21 and penetrates through the corresponding limiting assembly 12, one end of each connecting rod 22 is elastically abutted to each supporting assembly 11, each first elastic piece 23 is arranged in each accommodating space 121, and each first elastic piece 23 is arranged between every two adjacent sliding blocks 21. The adjusting assembly 30 comprises a pushing member 31 and an adjusting member 32, the pushing member 31 is movably disposed in the accommodating space 121, and the adjusting member 32 is rotatably connected to the limiting assembly 12 and movably connected to the pushing member 31. The adjusting member 32 is configured to rotate in the limiting assembly 12 to drive the pushing member 31 to move toward the sliding block 21, so that the pushing member 31 pushes the sliding block 21 to approach each other, and drives one end of the connecting rod 22 away from the supporting assembly 11 to approach each other to clamp the workpiece 200 (see fig. 8). The first elastic member 23 may be a spring or the like for elastically pushing the adjacent slider 21. The structure of the pushing member 31 may be L-shaped, and two sides of the pushing member 31 respectively correspond to two adjacent sides of the matrix formed by the plurality of clamping assemblies 20. The adjusting piece 32 and the limiting component 12 can be connected in a threaded connection manner, and the adjusting piece 32 rotates on the limiting component 12, so that the adjusting piece 32 can face or depart from the clamping component 20, and further the pushing piece 31 is driven to move toward or depart from the clamping component 20. When the pushing member 31 moves toward the clamping assembly 20, the clamping assembly 20 can be pushed to move the clamping assemblies 20 in the matrix toward each other, and further move the connecting rods 22 toward each other to clamp the workpiece 200. When the pushing member 31 moves away from the clamping assembly 20, the clamping assemblies 20 in the matrix are separated from each other under the pushing action of the first elastic member 23, so that the connecting rod 22 releases the workpiece 200.

The clamping device 100 provided by the embodiment of the application is provided with the clamping assemblies 20 distributed in a matrix, when the workpiece 200 is clamped, the workpiece 200 is placed on the upper side of the connecting rod 22 of the clamping assemblies 20, then the workpiece 200 is pressed, the connecting rod 22 supporting assembly 11 corresponding to the workpiece 200 moves towards the supporting assembly 11, then the adjusting piece 32 is rotated, and the adjusting piece 32 pushes the clamping assemblies 20 distributed in the matrix to move close to each other through the pushing piece 31, so that the connecting rod 22 close to the workpiece 200 clamps the workpiece 200. The clamping device 100 provided by the embodiment of the application is suitable for workpieces 200 with various structures, is convenient to use, clamps the workpieces 200 through a plurality of connecting rods 22, and is stable in clamping.

In some embodiments, referring to fig. 1 and 2, the support assembly 11 includes a base 111, a plurality of side fixing plates 112, and a plurality of support columns 113, wherein the plurality of side fixing plates 112 are connected to an upper side of the base 111 and are disposed around the base 111, and the support columns 113 are connected to the base 111 and are spaced apart from the side fixing plates 112. Referring to fig. 3 and 4, the limiting assembly 12 includes a lower limiting plate 122, an upper limiting plate 123 and a connecting block 124, the lower limiting plate 122 is connected to one end of the supporting column 113 away from the base 111, the upper limiting plate 123 is disposed along a direction away from the base 111 and spaced from the lower limiting plate 122 and fixedly connected with the side fixing plate 112, an accommodating space 121 is formed between the lower limiting plate 122 and the upper limiting plate 123, a plurality of through holes 125 are disposed on the lower limiting plate 122 and the upper limiting plate 123 in an array arrangement and are correspondingly disposed, the connecting rod 22 passes through the through holes 125, the connecting block 124 is respectively connected to one corner of the same side of the lower limiting plate 122 and the upper limiting plate 123, and the adjusting member 32 is rotationally connected with the connecting block 124. The base 111 may be a plate-like structure to provide better support stability. The side fixing plates 112 may be provided with two, three, four, etc., and the supporting columns 113 may be provided with two, three, four, etc., it being understood that the supporting columns 113 are used for supporting the lower limiting plates 122, the side fixing plates 112 are used for supporting the upper limiting plates 123, and in order to provide better supporting effect, the side fixing plates 112 and the supporting columns 113 are preferably four. The sliding block 21 in the clamping assembly 20 is arranged between the lower limiting plate 122 and the upper limiting plate 123, corresponds to the positions of the through holes 125 on the lower limiting plate 122 and the upper limiting plate 123, and the connecting rod 22 passes through the corresponding through holes 125 to extend out of the lower limiting plate 122 and the limiting plate. The structure of the through hole 125 may be provided in a sector shape, a square shape, a circular shape, etc., and the area of the through hole 125 is larger than the cross-sectional area of the connection rod 22 and smaller than the area of the slider 21.

In some embodiments, referring to fig. 2 and 3, the clamping assembly 20 further includes a second elastic member 24, the second elastic member 24 is connected to an end of the connecting rod 22 near the base 111, the second elastic member 24 is abutted with the base 111 and can slide on the base 111, and the second elastic member 24 is used for pushing the connecting rod 22 to move away from the base 111. The second elastic member 24 may be a spring, and referring to fig. 8 and 9, when the workpiece 200 presses the connecting rod 22, the second elastic member 24 is compressed, the connecting rod 22 pressed by the workpiece 200 moves toward the base 111, the top surface of the connecting rod 22 pressed by the workpiece 200 is lower than the top surface of the connecting rod 22 not pressed, and at this time, the adjusting member 32 drives the pushing member 31 to push the sliding block 21 to move, so that the connecting rod 22 not pressed moves toward the workpiece 200, and further clamps the workpiece 200. After the connecting rod 22 releases the workpiece 200, the second elastic member 24 can also push the connecting rod 22 to reset.

In some embodiments, referring to fig. 2 and 6, the clamping assembly 20 further includes a ball 25 and a ball seat 26, the ball seat 26 is connected to an end of the second elastic member 24 away from the connecting rod 22, the ball 25 is disposed in the ball seat 26, and the ball 25 abuts against the base 111. It will be appreciated that the balls 25 may rotate in the ball seats 26, such that when the pushing member 31 pushes the slider 21 to move, the sliding motion drives the connecting rod 22 and the second elastic member 24 to move, and the second elastic member 24 may slide on the base 111 through the balls 25.

In some embodiments, referring to fig. 3 and 4, the clamping assembly 20 further includes a limiting member 27, the limiting member 27 is sleeved on the connecting rod 22 and disposed below the lower limiting plate 122, and the limiting member 27 is used for abutting the lower limiting plate 122 when the second elastic member 24 abuts against the connecting rod 22 to move away from the base 111, so as to limit the connecting rod 22. The area of the limiting piece 27 is larger than that of the through hole 125, when the second elastic piece 24 pushes the connecting rod 22 to reset, the limiting piece 27 can abut against the lower limiting plate 122, so that the connecting rod 22 can be prevented from sliding out of the through hole 125, the movement distance of the connecting rod 22 can be limited, and the connecting rods 22 of the multiple groups of clamping assemblies 20 can be ensured to keep the ends, far away from the base 111, of the connecting rods 22 in order when the workpiece 200 (refer to fig. 8) is not clamped.

In some embodiments, referring to fig. 4, 5, 6 and 7, the sliding block 21 includes a first sliding block 211 and a second sliding block 212, the first sliding block 211 and the second sliding block 212 are alternately arranged in a matrix, the periphery of the first sliding block 211 is provided with a first protrusion 2111, a containing groove 2111a is formed in the first protrusion 2111, the containing groove 2111a is used for containing one end of the first elastic member 23, a first groove 2121 is formed in the periphery of the second sliding block 212, the first protrusion 2111 is slidably inserted into the first groove 2121, and the first groove 2121 is used for limiting the first protrusion 2111. It will be appreciated that the first protrusions 2111 of the first slider 211 inside the matrix are inserted into the first grooves 2121 of the second slider 212, and when the pushing member 31 does not push the clamping assembly 20, the first protrusions 2111 are spaced apart from the bottoms of the corresponding first grooves 2121, and when the pushing member 31 pushes the slider 21, the first protrusions 2111 and the first grooves 2121 may cooperate, i.e. the first protrusions 2111 slide in the first grooves 2121, so that the movement of the slider 21 in the vertical direction may be limited, and the stability during the movement may be improved. The first elastic member 23 is mounted in the receiving groove 2111a of the first protrusion 2111, which can improve the stability of the position of the first elastic member 23.

In some embodiments, referring to fig. 3 and 4, the adjusting assembly 30 further includes a fixing member 33, the fixing member 33 is fixedly disposed between the lower limiting plate 122 and the upper limiting plate 123, and a limiting portion 331 is disposed on a side of the fixing member 33 facing the slider 21. The side of the pushing piece 31 facing the sliding block 21 is provided with a limit groove 311. Referring to fig. 5, 6 and 7, the slider 21 further includes a third slider 213 and a fourth slider 214, the third slider 213 is alternately disposed on four sides of the matrix with the first slider 211, one side surface of the third slider 213 is provided with a second protrusion 2131, another three sides of the third slider 213 is provided with a second recess 2132, the second protrusion 2131 is disposed under the limiting portion 331 or movably inserted into the limiting groove 311, so that the limiting portion 331 or the limiting groove 311 limits the second protrusion 2131, the second recess 2132 is used for accommodating the first protrusion 2111 to limit the first protrusion 2111, the fourth slider 214 is disposed at a corner of the matrix, two adjacent sides of the fourth slider 214 are provided with third protrusions 2141, another two adjacent sides of the fourth slider 214 are provided with third recesses 2142, the third protrusion 2141 is disposed under the limiting portion 331 or movably inserted into the limiting groove 311, so that the limiting portion 331 or the limiting groove 311 limits the third protrusion 2141, and the third recess 2142 is used for accommodating the first protrusion 2111.

In one embodiment, the fixing member 33 may be configured in an L shape, and cooperates with the pushing member 31 to enclose the clamping assemblies 20 in a matrix arrangement. It will be appreciated that the third sliders 213 are disposed on four sides of the matrix and alternate with the first sliders 211, the four corners of the matrix are all configured as the third sliders 213, two adjacent sides of the third sliders 213 at the four corners of the matrix are provided with the second protrusions 2131, the other two sides are provided with the second grooves 2132, and two sides of the third sliders 213 having the second grooves 2132 are disposed toward the first sliders 211. Two opposite sides of the third slider 213 disposed at the side of the matrix are provided with second protrusions 2131, the other two opposite sides are provided with second grooves 2132, and two sides of the third slider 213 having the second grooves 2132 are disposed toward the first slider 211. Thus, the first sliders 211 on the four sides of the matrix have one first protrusion 2111 facing the fixing member 33 or the pushing member 31, the third sliders 213 on the four sides of the matrix have one or two third protrusions facing the fixing member 33 or the pushing member 31, the first protrusions 2111 and the second protrusions 2131 on adjacent two sides of the matrix are abutted by the limiting portions 331 of the fixing member 33, and the limiting grooves 311 of the pushing member 31 accommodate the first protrusions 2111 and the second protrusions 2131 on the other two sides of the matrix, so that the first sliders 211 and the third sliders 213 on the four sides of the matrix can be limited, and the stability of the movement of the sliders 21 in the matrix can be improved.

In some embodiments, referring to fig. 3 and 4, the position where the fixing member 33 contacts with the pushing member 31 is inserted into the limiting slot 311, the limiting slot 311 is further used for limiting the fixing member 33, and the position where the pushing member 31 contacts with the fixing member 33 is provided with an opening 312, and the opening 312 is used for keeping away the fixing member 33. It can be appreciated that the fixing member 33 is inserted into the limiting groove 311, so that the fixing member 33 and the pushing member 31 abut against each other, so as to enclose all the sliding blocks 21 in the fixing member 33 and the pushing member 31. By providing the opening 312 on the pushing member 31, the position where the fixing member 33 contacts the pushing member 31 can be kept away, so that the fixing member 33 does not affect the movement of the pushing member 31 when the adjusting member 32 drives the pushing member 31 to move. The structure of the pushing member 31 and the fixing member 33 may be L-shaped to enclose the clamping assemblies 20 arranged in a matrix, and both ends of the pushing member 31 are in contact with both ends of the fixing member 33, so that the openings 312 on the pushing member 31 are provided with two in this embodiment.

In some embodiments, referring to fig. 3 and 4, a sliding groove 1221 is formed on a side of the lower limiting plate 122 near the pushing member 31, a protrusion 313 corresponding to the sliding groove 1221 is disposed on a side of the pushing member 31 near the lower limiting plate 122, and the protrusion 313 slides in the sliding groove 1221 to limit the pushing member 31. In order to further improve the sliding stability of the pushing member 31 on the lower limiting plate 122, a plurality of sliding grooves 1221, such as two, three, etc., may be provided on the lower limiting plate 122, it may be appreciated that the plurality of sliding grooves 1221 are disposed parallel to each other, and the extending direction of the sliding grooves 1221 is consistent with the direction in which the adjusting member 32 drives the pushing member 31 to move, and the positions and the number of the protruding blocks 313 on the pushing member 31 correspond to the sliding grooves 1221.

In some embodiments, referring to fig. 8 and 9, a clamping portion 221 is disposed at an end of the connecting rod 22 away from the base 111, and the clamping portion 221 is used for clamping the workpiece 200. The clamping assembly 20 further includes a slip prevention member 28, the slip prevention member 28 being provided on the clamping portion 221 for contacting the workpiece 200 when the clamping portion 221 clamps the workpiece 200. In order to facilitate clamping of the workpiece 200, the cross section of the clamping portion 221 may be provided in a circular shape, and the radius of the cross section of the clamping portion 221 is larger than the radius of the cross section of the connecting rod 22. The anti-slip member 28 may be a rubber sleeve, etc., and by providing the anti-slip member 28, the friction force during clamping the workpiece 200 can be increased, so as to improve the stability of clamping the workpiece 200, and also avoid hard contact between the workpiece 200 and the clamping portion 221 of the connecting rod 22, and avoid damage to the surface of the workpiece 200. It will be appreciated that the diameter of the cross section of the anti-slip member 28 is not greater than the side length of the first slider 211.

Some embodiments provide a clamping device 100 that is used in the following steps:

first, the workpiece 200 is placed at the end of the connecting rod 22 where the clamping portion 221 is provided, the workpiece 200 is pressed downward, the connecting rod 22 corresponding to the workpiece 200 is held by the workpiece 200 and moves toward the base 111, and the second elastic member 24 connected to the connecting rod 22 corresponding to the workpiece 200 is compressed. Then, the adjusting member 32 is rotated, the adjusting member 32 drives the pushing member 31 to move toward the sliding blocks 21, so as to push the sliding blocks 21 in the matrix to approach each other, the sliding blocks 21 in the matrix compress the first elastic member 23, at this time, the connecting rod 22 is driven by the sliding blocks 21 to move toward the workpiece 200, and the ball 25 connected to the connecting rod 22 through the second elastic member 24 can slide on the base 111. After the clamping portion 221 of the connecting rod 22 clamps the workpiece 200, the rotation of the adjusting member 32 is stopped, and the fixing of the workpiece 200 is completed. After fixing the workpiece 200, the workpiece 200 can be subjected to treatment such as polishing, and when the workpiece 200 needs to be loosened after the treatment is completed, the adjusting piece 32 is rotated, so that the adjusting piece 32 drives the pushing piece 31 to move along the direction away from the sliding block 21, the sliding blocks 21 in the matrix are mutually away from each other under the pushing of the first elastic piece 23, and the connecting rods 22 are mutually away from each other along with the movement of the sliding blocks 21, so that the workpiece 200 can be loosened. After the workpiece 200 is removed, the second elastic member 24 pushes the connecting rod 22 to move away from the base 111 until the limiting member 27 abuts against the lower limiting plate 122, so that the resetting of the connecting rod 22 is completed.

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.

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 for clamping a workpiece, comprising:

the supporting mechanism comprises a supporting component and a limiting component, wherein the supporting component is used for supporting the limiting component, and the limiting component is provided with an accommodating space;

the clamping assemblies are arranged in a matrix, each clamping assembly comprises a sliding block, a connecting rod and a first elastic piece, each sliding block is movably arranged in each accommodating space, each connecting rod penetrates through each sliding block in a sliding mode and penetrates through each limiting assembly, one end of each connecting rod is elastically abutted to each supporting assembly, each first elastic piece is arranged in each accommodating space, and each first elastic piece is arranged between every two adjacent sliding blocks; and

The adjusting component comprises a pushing piece and an adjusting piece, the pushing piece is movably arranged in the accommodating space, and the adjusting piece is rotatably connected with the limiting component and is movably connected with the pushing piece; wherein,

the adjusting piece is used for rotating in the limiting assembly to drive the pushing piece to move towards the sliding block, so that the pushing piece pushes the sliding block to be close to each other, and one end, away from the supporting assembly, of the connecting rod is driven to be close to each other to clamp the workpiece.

2. A clamping device as claimed in claim 1, characterized in that,

the support assembly comprises a base, a plurality of side fixing plates and a plurality of support columns, wherein the side fixing plates are connected to the upper side of the base and are arranged around the base, and the support columns are connected to the base and are arranged at intervals with the side fixing plates;

the limiting assembly comprises a lower limiting plate, an upper limiting plate and a connecting block, wherein the lower limiting plate is connected to the supporting column at one end of the base, the upper limiting plate is arranged along the direction away from the base, the lower limiting plate is arranged at intervals and fixedly connected with the side fixing plates, the lower limiting plate and the upper limiting plate form an accommodating space therebetween, a plurality of through holes which are arranged in an array manner and correspondingly arranged are formed in the lower limiting plate and the upper limiting plate, the connecting rod penetrates through the through holes, the connecting blocks are respectively connected to the lower limiting plate and one corner of the same side of the upper limiting plate, and the regulating piece is connected with the connecting block in a rotating manner.

3. A clamping device as claimed in claim 2, characterized in that,

the clamping assembly further comprises a second elastic piece, the second elastic piece is connected to one end, close to the base, of the connecting rod, the second elastic piece is abutted to the base and can slide on the base, and the second elastic piece is used for pushing the connecting rod to move away from the base.

4. A material clamping device as claimed in claim 3, characterized in that,

the clamping assembly further comprises a ball and a ball seat, the ball seat is connected to one end, far away from the connecting rod, of the second elastic piece, the ball is arranged in the ball seat, and the ball is abutted to the base.

5. A material clamping device as claimed in claim 3, characterized in that,

the clamping assembly further comprises a limiting piece, the limiting piece is sleeved on the connecting rod and arranged on the lower side of the lower limiting plate, and the limiting piece is used for abutting the lower limiting plate when the second elastic piece abuts against the connecting rod to move away from the base, so that the connecting rod is limited.

6. A clamping device as claimed in claim 2, characterized in that,

the sliding block comprises a first sliding block and a second sliding block, the first sliding block and the second sliding block are alternately arranged in the matrix, first protrusions are arranged on the periphery of the first sliding block, accommodating grooves are formed in the first protrusions and used for accommodating one ends of the first elastic pieces, first grooves are formed in the periphery of the second sliding block, the first protrusions are slidably inserted into the first grooves, and the first grooves are used for limiting the first protrusions.

7. The material clamping device as claimed in claim 6, wherein,

the adjusting assembly further comprises a fixing piece, the fixing piece is fixedly arranged between the lower limiting plate and the upper limiting plate, and a limiting part is arranged on one side, facing the sliding block, of the fixing piece;

a limiting groove is formed in one side, facing the sliding block, of the pushing piece;

the sliding block further comprises a third sliding block and a fourth sliding block, the third sliding block is alternately arranged on four sides of the matrix and the first sliding block, a second bulge is arranged on one side face of the third sliding block, a second groove is formed in the other three side faces of the third sliding block, the second bulge is arranged on the lower side of the limiting part or movably inserted into the limiting groove, the limiting part or the limiting groove is used for limiting the second bulge, the second groove is used for accommodating the first bulge so as to limit the first bulge, the fourth sliding block is arranged at the corner of the matrix, a third bulge is arranged on two adjacent side faces of the fourth sliding block, a third groove is formed in the other two adjacent faces of the fourth sliding block, the third bulge is arranged on the lower side of the limiting part or movably inserted into the limiting groove so that the limiting part or the limiting groove limits the third bulge, and the third groove is used for accommodating the first bulge so as to limit the first bulge.

8. The material clamping device as claimed in claim 7, characterized in that,

the fixing piece with the position that supports and push away the piece and insert in the spacing groove, the spacing groove is still used for right the fixing piece is spacing, support and push away the piece with the position that supports and push away the piece and contact is provided with the opening, the opening is used for right the fixing piece keeps away the position.

9. A material clamping device as claimed in claim 8, characterized in that,

the lower limiting plate is provided with a sliding groove on one side close to the pushing part, a lug corresponding to the sliding groove is arranged on one side of the pushing part close to the lower limiting plate, and the lug slides in the sliding groove to limit the pushing part.

10. A clamping device as claimed in claim 2, characterized in that,

one end of the connecting rod, which is far away from the base, is provided with a clamping part, and the clamping part is used for clamping the workpiece;

the clamping assembly further comprises an anti-slip piece arranged on the clamping portion and used for contacting the workpiece when the workpiece is clamped by the clamping portion.