CN217433709U - Clamping device - Google Patents

Abstract

The utility model provides a clamping device, including bearing parts, setting element, at least a set of centre gripping subassembly and at least one first driving piece. The setting element is connected in bearing the piece, and be equipped with two constant head tanks and two locating holes, the setting element is used for bearing and location work piece, the centre gripping subassembly includes two clamping pieces, the clamping piece rotationally locates one side of setting element, and be equipped with the sliding tray, two moving parts wear to locate respectively in corresponding sliding tray and the constant head tank, two mountings set up with the moving part interval, and connect in the clamping piece that corresponds, and wear to locate the locating hole that corresponds respectively, the setting element is worn to locate by first driving piece, and both ends are connected respectively in bearing the piece and moving part, it moves with fixed setting element to drive the moving part along first direction, and drive the clamping piece and rotate with the clamping work piece towards the work piece. The utility model discloses a mounting location setting element, the work piece that rethread movable part and holder matched with the clamping setting element and born has reduced the clamping degree of difficulty, has improved the clamping precision.

Description

Clamping device

Technical Field

The utility model relates to a mechanical clamping's technical field especially relates to a clamping device.

Background

In current machining, a plurality of outer surfaces of a workpiece need to be machined by machining equipment to enable the workpiece to reach a preset structure.

The existing clamping device is respectively clamped at different positions of a workpiece in sequence through two clamping pieces, so that a processing device processes a plurality of outer surfaces of the workpiece. However, in the process of clamping, the clamping device needs to be assembled and disassembled for many times, so that the surface of the workpiece is easily damaged, the clamping positioning is easy to deviate, and the clamping efficiency is low.

SUMMERY OF THE UTILITY MODEL

In view of the above circumstances, it is necessary to provide a clamping device to solve the technical problems that the clamping of the clamping device is complicated and the clamping position is prone to be deviated.

An embodiment of the utility model provides a clamping device, include:

a carrier;

the positioning piece is connected to the bearing piece, and is provided with two positioning grooves and two positioning holes which are arranged at intervals and used for bearing and positioning a workpiece;

at least one set of clamping components, each set of clamping components includes:

the clamping pieces are oppositely arranged, each clamping piece is rotatably arranged on one side of the positioning piece and is provided with a sliding groove;

the two moving pieces are respectively arranged in the corresponding sliding groove and the corresponding positioning groove in a penetrating manner and are movably connected to the corresponding clamping pieces;

the two fixing pieces are arranged at intervals with the corresponding movable pieces, connected to one side face of the corresponding clamping piece and respectively penetrate through the corresponding positioning holes; and

at least one first driving piece is arranged in a penetrating mode on the positioning piece, and two ends of each first driving piece are connected to the corresponding bearing piece and the corresponding moving piece respectively and used for driving the corresponding moving piece to move along a first direction to fix the positioning piece and drive the clamping piece to move towards the workpiece to rotate to clamp the workpiece.

In some embodiments, a connecting groove is formed at a position of each clamping piece opposite to the corresponding first driving piece, and the connecting groove is communicated with the sliding groove and used for accommodating the first driving piece.

In some embodiments, the clamping device comprises:

the second driving piece is connected to one side face, deviating from the first driving piece, of the bearing piece and used for driving the bearing piece, the positioning piece and the clamping component to move.

In some embodiments, the clamping device comprises:

the connecting piece is connected to one end, deviating from the bearing piece, of the second driving piece and used for bearing the second driving piece, the connecting piece is provided with a connecting surface, the bearing piece is provided with a bearing surface used for bearing the workpiece, and the bearing surface is perpendicular to the connecting surface.

In some embodiments, the carrier further comprises:

the bearing connecting part is connected to one end, close to the clamping piece, of the second driving piece and is used for bearing the first driving piece;

and the bearing parts are arranged on the bearing connecting part at intervals, connected to the surface of the bearing connecting part deviating from the second driving part and used for bearing the positioning piece.

In some embodiments, the clamping assembly further comprises:

and the pressing part is connected to the end part of the clamping part far away from the first driving part and is used for pressing the workpiece.

In some embodiments, the first drive member comprises:

the driving connecting part is accommodated in the connecting groove and is connected to the movable part;

the drive portion, the both ends of drive portion connect respectively in drive connecting portion with hold carrier for drive connecting portion remove.

In some embodiments, the positioning member comprises:

the positioning plate is detachably connected to the bearing part;

the positioning part is detachably connected to one side, deviating from the bearing part, of the positioning plate and comprises a first side plate and a second side plate which are arranged at intervals, the two positioning grooves and the two positioning holes are formed in the first side plate and the second side plate respectively, and the clamping piece is arranged between the first side plate and the second side plate.

In some embodiments, the positioning portion further includes a positioning bearing portion, the positioning bearing portion is used for positioning and bearing a workpiece, two clamping members are disposed on two opposite sides of the positioning bearing portion, and the clamping members rotate towards the positioning bearing portion to clamp the workpiece borne by the positioning bearing portion.

In some embodiments, the clamping device includes two sets of clamping components, and the clamping components are arranged at intervals on the positioning plate and respectively connected to the corresponding driving connection portions, the first driving member further includes a driving linkage portion, one side of the driving linkage portion is connected to two of the driving connection portions, the other side of the driving linkage portion is connected to the driving portion, two sets of clamping components each have one of the clamping components adjacent to each other, and the driving linkage portion is used for driving two sets of clamping components each have two of the clamping components adjacent to each other to rotate.

The clamping device bears the workpiece through the positioning piece, the positioning piece is positioned by the fixing piece, and the first driving piece drives the moving piece to move along the first direction so as to fix the positioning piece and drives the clamping piece to rotate towards the workpiece so as to clamp the workpiece. Through the combination of the two clamping positions, the clamping of two workpieces can be realized by one-time clamping, so that unstable factors caused by multiple times of clamping are reduced. Compared with the prior art, the utility model discloses a mounting location setting element, the work piece that rethread movable part and holder matched with the clamping setting element and born has reduced the clamping degree of difficulty, has improved the clamping precision, and through drive linkage portion, only need be located the centre also drive linkage portion's the rotation center's of rotation center a drive division and other structure cooperations, can drive two adjacent holders and rotate in order to press from both sides two work pieces for the clamping process is more simple high-efficient.

Drawings

Fig. 1 is a schematic perspective view of a clamping device provided in an embodiment of the present invention.

Fig. 2 is a schematic perspective view of the positioning element shown in fig. 1.

Fig. 3 is a schematic perspective view of the positioning element shown in fig. 1 at another angle.

Fig. 4 is a perspective view of the clamping assembly shown in fig. 1.

Fig. 5 is a partial enlarged view of the v position of the clamping assembly shown in fig. 4.

Description of the main elements

Clamping device 100

Carrier 10

Load bearing connection 11

Bearing part 12

Bearing surface 121

Connecting hole 122

Retainer 20

Positioning plate 21

Fixing hole 211

The receiving groove 212

Main reference surface 213

Positioning part 22

First side plate 221

Positioning slot 2211

Positioning hole 2212

Second side plate 222

Positioning bearing part 223

Holding groove 224

Clamping assembly 30

Clamping piece 31

Sliding groove 311

Connecting groove 312

Movable part 32

Fixing member 33

The pressing member 34

First driving member 40

Drive connection 41

Drive unit 42

Drive linkage part 43

Second driving member 50

Connecting piece 60

First connection portion 61

Connection surface 611

Second connecting part 62

Workpiece 200

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The utility model discloses the implementation provides a clamping device, include:

a carrier;

the positioning piece is detachably connected to the bearing piece, and is provided with two positioning grooves and two positioning holes which are arranged at intervals and used for bearing and positioning a workpiece;

at least one set of centre gripping subassembly, every group the centre gripping subassembly includes:

the clamping pieces are oppositely arranged, each clamping piece is rotatably arranged on one side of the positioning piece and is provided with a sliding groove;

the two moving pieces are respectively arranged in the corresponding sliding groove and the corresponding positioning groove in a penetrating manner and are movably connected to the corresponding clamping pieces;

the two fixing pieces are arranged at intervals with the corresponding movable pieces, connected to one side face of the corresponding clamping piece and respectively penetrate through the corresponding positioning holes; and

at least one first driving piece is arranged in a penetrating mode on the positioning piece, and two ends of each first driving piece are connected to the corresponding bearing piece and the corresponding moving piece respectively and used for driving the corresponding moving piece to move along a first direction to fix the positioning piece and drive the clamping piece to move towards the workpiece to rotate to clamp the workpiece.

The utility model discloses a mounting location setting element, the work piece that rethread movable part and holder matched with the clamping setting element and born has reduced the clamping degree of difficulty, has improved the clamping precision.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, the processing accuracy of the workpiece 200 is high, and when the workpiece 200 is clamped and positioned on the machine table, the position of the workpiece 200 needs to be accurately positioned and fixed to prevent the processing equipment from deviating from the preset position, so that the processing result of the workpiece 200 does not conform to the preset result. In addition, in order to ensure the machining accuracy, it is desirable that clamping of a plurality of workpieces 200 can be performed in one clamping device without causing clamping positioning interference of the workpieces 200.

Therefore, referring to fig. 2 and fig. 3, the present invention provides a clamping device 100 for clamping and fixing a workpiece 200 on a machine, so that a processing apparatus can accurately and efficiently process the workpiece 200. The clamping device 100 comprises a carrier 10, a positioning member 20, at least one set of clamping assemblies 30 and at least one first driving member 40.

The carrier 10 is connected to the positioning member 20 and the first driving member 40 for carrying the positioning member 20 and the first driving member 40. The carrier 10 includes a carrier connecting portion 11 and a plurality of carrier portions 12. The bearing connecting portion 11 is substantially plate-shaped, is connected to the first driving member 40, and is configured to bear the first driving member 40, the plurality of bearing portions 12 are arranged on the surface of the bearing connecting portion 11 at intervals, and are connected to the bearing connecting portion 11, the plurality of bearing portions 12 are configured to bear the positioning element 20, wherein each bearing portion 12 has a bearing surface 121, all the bearing surfaces 121 are located on the same plane, and the bearing surfaces 121 are configured to bear the positioning element 20. In the present embodiment, the bearing portion 12 has a plurality of connecting holes 122 on the bearing surface 121, so that the bearing portion 12 is connected to the positioning element 20 through the connecting holes 122.

Referring to fig. 2 and 3, the positioning member 20 is connected above the supporting portion 12 for supporting the workpiece 200 and positioning the workpiece 200. The positioning member 20 includes a positioning plate 21 and a positioning portion 22, the positioning plate 21 is substantially plate-shaped, the positioning plate 21 is provided with a fixing hole 211 at a position opposite to the connecting hole 122, and the positioning plate 21 is matched with the connecting hole 122 through the fixing hole 211 so that the positioning plate 21 is detachably connected above the carrying part 12. In this embodiment, the positioning plate 21 further has a plurality of receiving slots 212, and the receiving slots 212 penetrate through the positioning plate 21 for receiving the first driving element 40. It is understood that the positioning plate 21 has a main reference surface 213, and the main reference surface 213 is parallel to the carrying surface 121 and parallel to the upper surface of the workpiece 200 to determine the processing position of the workpiece 200.

The positioning portion 22 is detachably connected to a side of the positioning plate 21 away from the bearing portion 12, and the positioning portion 22 includes a first side plate 221, a second side plate 222 and a positioning bearing portion 223. The first side plate 221 and the second side plate 222 are spaced above the positioning plate 21 and detachably connected to the positioning plate 21. The positioning bearing part 223 is located at the middle position of the first side plate 221 and the second side plate 222, and two ends of the positioning bearing part are respectively connected to the first side plate 221 and the second side plate 222, and detachably connected to the positioning plate 21 for bearing the workpiece 200. The first side plate 221, the second side plate 222 and the positioning and bearing portion 223 form two receiving grooves 224, and the receiving grooves 224 are communicated with the receiving grooves 212 for receiving the clamping assembly 30. In this embodiment, the first side plate 221 and the second side plate 222 are respectively provided with two positioning slots 2211 and two positioning holes 2212, the positioning slots 2211 are used for fixing the positioning element 20, and the fixing holes 211 are matched with the positioning holes 2212 for fixing the positioning element 20.

Referring to fig. 4 and 5, each set of clamping assemblies 30 includes two clamping members 31, two movable members 32 and two fixed members 33 for fixing and clamping the positioning members 20 and the workpiece 200.

The two clamping members 31 are spaced apart from each other, rotatably disposed on one side of the positioning member 20, and received in the receiving slot 224 for clamping and fixing the workpiece 200. Each of the clamping members 31 has a sliding slot 311 and a connecting slot 312, the sliding slot 311 is located on the surface of the clamping member 31 and penetrates through the clamping member 31, and the connecting slot 312 is located on the other side of the clamping member 31 and is communicated with the sliding slot 311. The movable member 32 is substantially rod-shaped, and is disposed through the corresponding sliding slot 311 and the corresponding positioning slot 2211, and is movably connected to the clamping member 31, and the movable member 32 is used for driving the clamping member 31 to rotate and fixing the positioning member 20. The fixing element 33 is substantially rod-shaped, is spaced apart from the corresponding movable element 32, and is movably connected to one side of the corresponding clamping element 31, and the fixing element 33 is used for positioning the positioning element 20. When the workpiece 200 carried by the positioning element 20 is clamped, the fixing element 33 is accommodated in the positioning hole 2212 to position the positioning element 20, the movable element 32 is accommodated in the positioning groove 2211 and moves in the sliding groove 311 along the first direction, so that the movable element 32 abuts against the bottom of the positioning groove 2211 to fix the positioning element 20, the two clamping elements 31 rotate towards the workpiece 200 under the driving of the corresponding movable element 32, namely, relatively move along the second direction and abut against the workpiece 200, and the two clamping elements 31 are matched with each other to clamp and fix the workpiece 200 on the carrying element 10. In this embodiment, the first direction is a Z-axis direction, and the second direction is a Y-axis direction.

In some embodiments, the clamping assembly 30 further includes two pressing elements 34, the pressing elements 34 are respectively disposed at one end of the corresponding clamping element 31 close to the movable element 32 and connected to the corresponding movable element 32, when the clamping element 31 is driven by the movable element 32 to rotate, the pressing elements 34 abut on the upper side of the workpiece 200, cooperate with the clamping element 31 and the movable element 32, and jointly act on the workpiece 200, so that the workpiece 200 is stably clamped on the positioning element 20.

The two ends of the first driving element 40 are respectively connected to the supporting element 10 and the movable element 32, and the first driving element 40 is used for driving the movable element 32 to move along the first direction, so that the clamping element 31 is driven to rotate by the movable element 32, and the workpiece 200 is pressed against the positioning element 20.

Specifically, the first driver 40 includes a driving connection portion 41 and a driving portion 42. The driving connection portion 41 is substantially cylindrical, the driving connection portion 41 is inserted into the receiving groove 212, and is received in the connection groove 312 and inserted into the movable element 32, and the driving connection portion 41 is connected to the movable element 32. The driving portion 42 is connected to the bearing connection portion 11, an output end of the driving portion 42 is connected to an end of the driving connection portion 41 away from the clamping member 31, and the driving portion 42 is configured to drive the movable member 32 to move along the first direction, so that the movable member 32 drives the clamping member 31 to rotate towards the positioning bearing portion 223 to clamp the workpiece 200 borne on the positioning bearing portion 223. In the present embodiment, the driving portion 42 is a cylinder.

In some embodiments, the clamping device 100 includes two sets of clamping assemblies 30 spaced apart from each other and disposed on the positioning plate 21 and connected to the corresponding driving connecting portions 41, and the first driving member 40 further includes a driving linking portion 43, the driving linking portion 43 is substantially plate-shaped, one side of the driving linking portion 43 is connected to each of the two driving connecting portions 41, and the other side of the driving linking portion 43 is connected to the driving portion 42. One clamping piece 31 of each of the two groups of clamping assemblies 30 is adjacent to each other, and the driving linkage part 43 is used for driving the two adjacent clamping pieces 31 of the two groups of clamping assemblies 30 to rotate. Through the driving linkage part 43, only one driving part 42 of the first driving part 40 located in the middle, that is, at the rotation center of the driving linkage part 43, is matched with other structures, so that the two adjacent clamping parts 31 can be driven to rotate to clamp the two workpieces 200, and the clamping process is simpler and more efficient. It will be appreciated that two adjacent clamps 31 may also cooperate with a fixed profile formation to clamp two workpieces 200.

The clamping device 100 further comprises a second driving member 50 and a connecting member 60.

The second driving member 50 is connected to a side surface of the bearing connection portion 11 departing from the bearing portion 12, and is used for driving the bearing portion 12, the positioning member 20 and the clamping assembly 30 to move, so as to adjust a position of the workpiece 200 borne by the positioning member 20, and thus, the processing equipment can precisely process the workpiece 200.

The connector 60 includes a first connection portion 61 and a second connection portion 62. One end of the first connecting portion 61 is connected to the second connecting portion 62, the other end of the first connecting portion 61 is connected to the machine, and the second connecting portion 62 is connected to the second driving member 50 for bearing the second driving member 50. The first connecting portion 61 and the second connecting portion 62 are perpendicularly connected to each other, and the first connecting portion 61 has a connecting surface 611, and the connecting surface 611 is perpendicular to the main reference surface 213 to define a processing surface of the workpiece 200, so that the processing apparatus can accurately process the workpiece 200. In this embodiment, the second driving member 50 is a cylinder, and the first connecting portion 61 is a flange.

The utility model discloses working process does: the positioning plate 21 is first placed on the bearing surface 121 of the bearing portion 12, so that the accommodating groove 212 can be inserted into the driving connecting portion 41, the first side plate 221, the second side plate 222 and the positioning bearing portion 223 are connected to the upper portion of the positioning plate 21, the fixing member 33 is accommodated in the positioning hole 2212 to position the positioning member 20, the movable member 32 is inserted into the positioning groove 2211, and the workpiece 200 is loaded on the positioning bearing portion 223, then, the first driving member 40 drives the movable member 32 to move along the first direction, the movable member 32 abuts against the bottom of the positioning slot 2211 to fix the positioning member 20, and drives the clamping member 31 and the pressing member 34 to rotate towards the workpiece 200 and abut against the workpiece 200, to cooperate with the corresponding movable members 32, so that the workpiece 200 is stably clamped on the positioning member 20, the second driving member 50 drives the bearing member 10 to move along the first direction, and the position of the workpiece 200 borne by the positioning member 20 is adjusted, so that the processing equipment can precisely process the workpiece 200.

The clamping device 100 carries the workpiece 200 through the positioning member 20, the fixing member 33 positions the positioning member 20, the first driving member 40 drives the movable member 32 to move in the first direction to fix the positioning member 20, and drives the clamping member 31 to rotate toward the workpiece 200 to clamp the workpiece 200. Through the combination of the two clamping positions, the clamping of two workpieces can be realized by one-time clamping, so that unstable factors caused by multiple times of clamping are reduced. The utility model discloses a mounting 33 location setting element 20, the work piece 200 that the rethread movable part 32 and 31 clamping locating piece of cooperating clamping 20 born has reduced the clamping degree of difficulty, has improved the clamping precision. And through the driving linkage part 43, only one driving part 42 of the first driving part 40 located in the middle, that is, at the rotation center of the driving linkage part 43, is matched with other structures, so that the two adjacent clamping parts 31 can be driven to rotate to clamp the two workpieces 200, and the clamping process is simpler and more efficient.

The foregoing description of various embodiments of the invention has been presented for purposes of illustration but is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the invention. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (10)

1. A clamping device, comprising:

a carrier;

the positioning piece is connected to the bearing piece, two positioning grooves and two positioning holes are formed in the positioning piece at intervals, and the positioning piece is used for bearing and positioning a workpiece;

at least one set of centre gripping subassembly, every group the centre gripping subassembly includes:

the clamping pieces are oppositely arranged, each clamping piece is rotatably arranged on one side of the positioning piece and is provided with a sliding groove;

the two moving parts respectively movably penetrate through the corresponding sliding grooves and the corresponding positioning grooves;

the two fixing pieces are arranged at intervals with the corresponding movable pieces, connected to one side face of the corresponding clamping piece and respectively penetrate through the corresponding positioning holes; and

at least one first driving piece is arranged in a penetrating mode on the positioning piece, and two ends of each first driving piece are connected to the corresponding bearing piece and the corresponding moving piece respectively and used for driving the corresponding moving piece to move along a first direction to fix the positioning piece and drive the clamping piece to move towards the workpiece to rotate to clamp the workpiece.

2. The clamping device as recited in claim 1, wherein each of the clamping members is provided with a connecting slot at a position opposite to the corresponding first driving member, the connecting slot is connected to the sliding slot for receiving the first driving member.

3. The chuck as in claim 1, wherein said chuck comprises:

the second driving piece is connected to one side face of the bearing piece, which deviates from the first driving piece, and is used for driving the bearing piece, the positioning piece and the clamping assembly to move.

4. The chuck as in claim 3, wherein said chuck comprises:

the connecting piece is connected to one end, deviating from the bearing piece, of the second driving piece and used for bearing the second driving piece, the connecting piece is provided with a connecting surface, the bearing piece is provided with a bearing surface used for bearing the workpiece, and the bearing surface is perpendicular to the connecting surface.

5. The chuck assembly of claim 3, wherein the carrier further comprises:

the bearing connecting part is connected to one end, close to the clamping piece, of the second driving piece and is used for bearing the first driving piece;

and the bearing parts are arranged on the bearing connecting part at intervals, connected to the surface of the bearing connecting part deviating from the second driving part and used for bearing the positioning piece.

6. The clamping device of claim 1, wherein the clamping assembly further comprises:

and the pressing part is connected to the end part of the clamping part far away from the first driving part and is used for pressing the workpiece.

7. The chuck as in claim 2, wherein the first drive member comprises:

the driving connecting part is accommodated in the connecting groove and is connected to the movable part;

the drive portion, the both ends of drive portion connect respectively in drive connecting portion with hold carrier for drive connecting portion remove.

8. A holder as claimed in claim 7, wherein the carrier further comprises a plurality of carrying portions for carrying the locating members,

the positioning member includes:

the positioning plate is detachably connected to the bearing part;

the positioning part is detachably connected to one side, deviating from the bearing part, of the positioning plate and comprises a first side plate and a second side plate which are arranged at intervals, the two positioning grooves and the two positioning holes are formed in the first side plate and the second side plate respectively, and the clamping piece is arranged between the first side plate and the second side plate.

9. The clamping device as recited in claim 8, wherein the positioning portion further comprises a positioning bearing portion for positioning and bearing the workpiece, two of the clamping members are disposed on opposite sides of the positioning bearing portion, and the clamping members rotate toward the positioning bearing portion to clamp the workpiece borne by the positioning bearing portion.

10. The clamping device as recited in claim 9, wherein the clamping device comprises two sets of clamping members spaced apart from each other and disposed on the positioning plate and connected to the corresponding driving connection portions, the first driving member further comprises a driving linkage portion, one side of the driving linkage portion is connected to two of the driving connection portions, the other side of the driving linkage portion is connected to the driving portion, one of the clamping members of each of the two sets of clamping members is adjacent to each other, and the driving linkage portion is configured to drive two adjacent clamping members of the two sets of clamping members to rotate.

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