CN219633169U - Clamp assembly - Google Patents

Abstract

The utility model discloses a clamp assembly, which comprises: a plurality of clamp devices, wherein a first positioning part is arranged on the clamp devices; the plurality of clamp devices are movably arranged on the transmission device respectively, and the transmission device is used for driving the plurality of clamp devices to move along a preset direction; a positioning device, the positioning device comprising: the driving assembly and the plurality of transmission assemblies are provided with second positioning portions on each transmission assembly, and the driving assembly is used for driving a plurality of transmission assemblies to move so that the second positioning portions are matched with the first positioning portions in a positioning mode. The positioning device drives the plurality of clamp devices to move along a preset direction to finish the preliminary positioning of the clamp devices; the driving assembly drives the transmission assembly to move so that the second positioning part is matched with the first positioning part in a positioning way to finish the accurate positioning of the fixture device, thereby reducing the requirement on the repeated positioning precision of the transmission device.

Description

Clamp assembly

Technical Field

The utility model relates to the technical field of clamps, in particular to a clamp assembly.

Background

In the related art, the clamp positioning mode adopts the clamp to be fixed on the turntable, the position of the clamp is unchanged relative to the turntable, and the position precision of each clamp switched on different stations is ensured through the carrying precision of the actuating mechanism. Because of the positioning deviation of the executing mechanism, the larger the diameter of the turntable is, the poorer the position accuracy reflected on the clamp is. The higher the machining precision of the disk and the clamp part and the positioning precision of the actuator are, the higher the cost is.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a clamp assembly, wherein the positioning device drives a plurality of clamp devices to move along a preset direction to finish the preliminary positioning of the clamp devices; the driving assembly drives the transmission assembly to move so that the second positioning part is matched with the first positioning part in a positioning way to finish the accurate positioning of the fixture device, thereby reducing the requirement on the repeated positioning precision of the transmission device.

According to an embodiment of the present utility model, a jig assembly includes: a plurality of clamp devices, wherein a first positioning part is arranged on the clamp devices; the plurality of clamp devices are movably arranged on the transmission device respectively, and the transmission device is used for driving the plurality of clamp devices to move along a preset direction; a positioning device, the positioning device comprising: the driving assembly and the plurality of transmission assemblies are provided with second positioning portions on each transmission assembly, and the driving assembly is used for driving a plurality of transmission assemblies to move so that the second positioning portions are matched with the first positioning portions in a positioning mode.

According to the clamp assembly provided by the embodiment of the utility model, the positioning device drives the plurality of clamp devices to move along the preset direction, so that the preliminary positioning of the clamp devices is completed; the driving assembly drives the transmission assembly to move so that the second positioning part is matched with the first positioning part in a positioning way to finish the accurate positioning of the fixture device, thereby reducing the requirement on the repeated positioning precision of the transmission device.

According to some embodiments of the utility model, the first positioning portion is one of a positioning post and a positioning hole, and the second positioning portion is the other of the positioning post and the positioning hole, and the positioning post and the positioning hole are selectively positioned and matched.

According to some embodiments of the utility model, the transmission assembly comprises: the first transmission piece and second transmission piece, the one end of first transmission piece with drive assembly transmission is connected and the other end with the one end transmission of second transmission piece is connected, drive assembly drive the one end of first transmission piece is to first direction removal to make the one end of second transmission piece remove to the second direction, the other end of second transmission piece is provided with second location portion, first direction and second direction opposite direction.

According to some embodiments of the utility model, the transmission assembly further comprises: according to some embodiments of the utility model, the first mounting seat is provided with a first sliding part, the second transmission piece is provided with a second sliding part, the first sliding part and the second sliding part extend along the direction of matching the second positioning part with the first positioning part, and the first sliding part and the second sliding part are in sliding fit.

According to some embodiments of the utility model, the first mounting seat is provided with a rotating shaft, the first transmission member is provided with a first mounting hole, and the rotating shaft passes through the first mounting hole and is rotationally connected with the first transmission member.

According to some embodiments of the utility model, the drive assembly comprises: the driving piece is in transmission connection with the first rotating disc, the driving piece is used for driving the first rotating disc to move in a first direction, and the first rotating disc is in transmission connection with one end of the first transmission piece so that one end of the first transmission piece moves in the first direction.

According to some embodiments of the utility model, a fixed seat is arranged on the first rotary table, a first matching groove is further arranged on the fixed seat, a first cam is arranged at one end of the first transmission piece, and the first cam is in rotary fit in the first matching groove.

According to some embodiments of the utility model, a second mounting seat is arranged on the second transmission piece, a second matching groove is arranged on the second mounting seat, a second cam is arranged at the other end of the first transmission piece, and the second cam is in rotary fit in the second matching groove; and, the drive assembly further comprises: the guide posts penetrate through the first rotating disc, and the driving piece drives the first rotating disc to move up and down along the guide posts.

According to some embodiments of the utility model, the clamp device comprises: a clamp, the clamp comprising: the base is fixedly connected with the transmission device and is movably connected with the movable plate.

According to some embodiments of the utility model, the clamp further comprises: the pressing plate is fixedly connected with the base, and the elastic piece is clamped between the pressing plate and the movable plate.

According to some embodiments of the utility model, a third positioning part is arranged on the movable plate, a fourth positioning part is arranged on the base, and the third positioning part and the fourth positioning part are in clearance fit.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a first orientation of a clamp assembly according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a second orientation of a clamp assembly according to an embodiment of the present utility model;

FIG. 3 is a partial schematic view of FIG. 2;

FIG. 4 is a schematic view of a third orientation of a clamp assembly according to an embodiment of the present utility model;

FIG. 5 is a partial schematic view of FIG. 4;

FIG. 6 is a schematic illustration of the connection of a first transmission member and a second transmission member according to an embodiment of the present utility model;

FIG. 7 is a top view of a clamp according to an embodiment of the utility model;

fig. 8 is a cross-sectional view of a clamp according to an embodiment of the utility model.

Reference numerals:

100. a clamp assembly;

10. a clamp device; 11. a clamp; 111. a first positioning portion; 112. a base; 113. a movable plate; 114. an elastic member; 115. a third positioning portion; 116. a fourth positioning portion; 117. a pressing plate; 12. a transmission device;

20. a positioning device; 21. a drive assembly; 211. a driving member; 212. a first turntable; 213. a fixing seat; 214. a first mating groove; 215. a guide post; 22. a transmission assembly; 23. a first transmission member; 231. a first cam; 232. a second cam; 24. a second transmission member; 241. a second positioning portion; 242. a second sliding part; 243. a second mounting base; 244. a second mating groove; 25. a first mount; 251. a first sliding portion; 252. a rotating shaft.

Detailed Description

Embodiments of the present utility model will be described in detail below, by way of example with reference to the accompanying drawings.

A clamp assembly 100 according to an embodiment of the present utility model is described below with reference to fig. 1-8.

As shown in fig. 1, the jig assembly 100 includes: the jig device 10 includes a plurality of jig devices 10, a transmission device 12, and a positioning device 20, and a first positioning portion 111 is provided on the jig device 10.

The plurality of clamp devices 10 are movably arranged on the transmission device 12 respectively, and the transmission device 12 is used for driving the plurality of clamp devices 10 to move along a preset direction. Specifically, the plurality of jig devices 10 are disposed at regular intervals around the outer peripheral side of the transmission device 12, and the jig devices 10 are fixedly connected to the transmission device 12 so that the plurality of jig devices 10 rotate with the transmission device 12. The direction and the position of the movement of the plurality of jig devices 10 are preset, and the transmission device 12 drives the plurality of jig devices 10 to move along the preset direction and position, so that the preliminary positioning of the jig devices 10 is completed.

As shown in connection with fig. 1 and 2, the positioning device 20 includes: a driving assembly 21 and a plurality of transmission assemblies 22, each transmission assembly 21 is provided with a second positioning portion 241. Specifically, in the height direction, the positioning device 20 is located above the fixture device 10, and the positioning device 20 includes a driving assembly 21 and a transmission assembly 22.

As shown in fig. 1-7, the driving assembly 21 is used for driving the plurality of transmission assemblies 22 to move so as to make the second positioning portion 241 be in positioning fit with the first positioning portion 111.

First, the jig device 10 is rotated to a specified position; secondly, the driving assembly 21 drives the transmission assembly 22 to move, and the second positioning part 241 is abutted with the first positioning part 111 until being matched with the first positioning part in a positioning way, so that the clamp 11 is accurately positioned, and the requirement on repeated positioning precision of the transmission device 12 is reduced; finally, after each assembly station completes the partial assembly link, the driving component 21 drives one end of the transmission component 22 to move downwards, then the other end of the transmission component 22 moves upwards, and the second positioning portion 241 moves upwards along with the movement, so that the second positioning portion 241 is separated from the first positioning portion 111, and the plurality of clamps 11 rotate to the next station.

Thereby, the positioning device 20 drives the plurality of jig devices 10 to move in a preset direction, completing the preliminary positioning of the jig devices 10; the driving component 21 drives the transmission component 22 to move so that the second positioning part 241 is matched with the first positioning part 111 in a positioning way, and the accurate positioning of the fixture device 10 is completed, thereby reducing the requirement on the repeated positioning precision of the transmission device 12.

As shown in fig. 6 and 7, the first positioning portion 111 is one of a positioning post and a positioning hole, and the second positioning portion 241 is the other of the positioning post and the positioning hole, and the positioning post and the positioning hole are selectively positioned and engaged. Specifically, if the first positioning portion 111 is a positioning column, the second positioning portion 241 is provided with a positioning hole, and the positioning column is matched with the positioning hole in a positioning manner, so that the fixture 11 can be accurately positioned; if the first positioning portion 111 is a positioning hole, the second positioning portion 241 is a positioning column, and the positioning hole is matched with the positioning column in a positioning manner, so that the fixture 11 is positioned more accurately.

Further, a chamfer is arranged on the positioning column and/or the positioning hole. Specifically, a chamfer is arranged on the positioning column, and the chamfer is positioned on one side of the positioning column facing the positioning hole, so that the positioning column and the positioning hole are matched in a guiding way; or, be provided with the chamfer on the locating hole, the chamfer is located the locating hole and faces one side of reference column, further makes the cooperation of reference column and locating hole more smooth and easy, raises the efficiency.

The transmission assembly 22 includes: the first transmission member 23 and the second transmission member 24, one end of the first transmission member 23 is in transmission connection with the driving assembly 21, and the other end of the first transmission member 23 is in transmission connection with one end of the second transmission member 24, the driving assembly 21 drives one end of the first transmission member 23 to move in a first direction so that the other end of the second transmission member 24 moves in a second direction, and a second positioning portion 24 is arranged at the other end of the second transmission member 24. Specifically, the transmission assembly 22 includes a first transmission member 23 and a second transmission member 24, one end of the first transmission member 23 is in transmission connection with the driving assembly 21, and the other end of the first transmission member 23 is in transmission connection with one end of the second transmission member 24, so that the driving assembly 21 is in transmission connection with the second transmission member 24, and the driving assembly 21, the first transmission member 23 and the second transmission member 24 are connected.

The first direction and the second direction are opposite. That is, the first direction may be an upper side in the height direction, and the second direction may be a lower side in the height direction.

That is, the transmission 12 rotates to the specified position; secondly, when the driving assembly 21 drives one end of the first transmission member 23 to move upwards, the other end of the second transmission member 24 moves downwards, the second positioning portion 241 moves downwards along with the first transmission member, and the second positioning portion 241 abuts against the first positioning portion 111 until being in positioning fit, so that the clamp 11 is positioned accurately; finally, after each assembly station completes the partial assembly link, the driving assembly 21 drives one end of the first transmission member 23 to move downward, the other end of the second transmission member 24 moves upward, and the second positioning portion 241 moves upward accordingly, so that the second positioning portion 241 is separated from the first positioning portion 111, and the plurality of clamps 11 rotate to the next station along with the transmission device 12. Wherein, the positioning of long distance or long travel or large pressure can be realized by adjusting the length of the first transmission member 23 without being limited by the size.

Referring to fig. 5 and 6, the transmission assembly 22 further includes: the first mounting base 25, the first mounting base 25 is provided with a first sliding portion 251, the second transmission member 24 is provided with a second sliding portion 242, the first sliding portion 251 and the second sliding portion 242 extend along the direction in which the second positioning portion 241 and the first positioning portion 111 are engaged, and the first sliding portion 251 and the second sliding portion 242 are slidably engaged.

Specifically, the direction in which the second positioning portion 241 and the first positioning portion 111 are engaged may be a height direction, the first mount 25 is located between the driving assembly 21 and the jig device 10, and the first sliding portion 251 on the first mount 25 and the second sliding portion 242 on the second transmission member 24 are slidably engaged, so that the second sliding portion 242 may move up and down with respect to the first sliding portion 251, so that the second transmission member 24 may move up and down, and smoothness of the up and down movement of the second transmission member 24 may be improved.

Wherein the first sliding portion 251 is one of a guide rail and a slider, and the second sliding portion 242 is the other of the guide rail and the slider. If the first sliding portion 251 is a guide rail, the second sliding portion 242 is a slider, and the slider slides on the guide rail, so that the second transmission member 24 can move up and down, and the second positioning portion 241 can move up and down to be matched with the first positioning portion 111; if the first sliding portion 251 is a slider, the second sliding portion 242 is a guide rail, and the guide rail moves up and down with respect to the slider, so that the second transmission member 24 moves up and down with respect to the first mounting seat 25, and the second positioning portion 241 can move up and down to cooperate with the first positioning portion 111.

In some embodiments, the first mounting seat 25 is provided with a rotation shaft 252, the first transmission member 23 is provided with a first mounting hole, and the rotation shaft 252 passes through the first mounting hole and is rotationally connected with the first transmission member 23. Specifically, the first mounting seat 25 is provided with a rotating shaft 252, the first driving member 23 is provided with a first mounting hole, the rotating shaft 252 corresponds to the first mounting hole, and the rotating shaft 252 passes through the first mounting hole and is rotationally connected with the first driving member, so that the first driving member 23 can rotate around the rotating shaft 252 to realize that one end of the first driving member 23 moves upwards and the other end moves downwards.

As shown in fig. 2 to 4, the driving assembly 21 includes: the driving piece 211 is in transmission connection with the first rotating disc 212, the driving piece 211 is used for driving the first rotating disc 212 to move in the first direction, and the first rotating disc 212 is in transmission connection with one end of the first transmission piece 23 so that one end of the first transmission piece 23 moves in the first direction. Specifically, the driving assembly 21 includes a driving member 211 and a first rotating disc 212, the driving member 211 can drive the first rotating disc 212 to move in a first direction, that is, the first direction can be an upward direction, an outer edge of the first rotating disc 212 is in transmission connection with one end of the first driving member 23, the first rotating disc 212 moves upward, one end of the first driving member 23 connected with the second driving member 24 moves downward, so that the second positioning portion 241 moves downward, and abuts against the first positioning portion 111 until positioning is completed, thereby completing accurate positioning of the fixture 11.

In some embodiments, the first rotating disc 212 is provided with a fixing seat 213, the fixing seat 213 is further provided with a first matching groove 214, one end of the first transmission member 23 is provided with a first cam 231, and the first cam 231 is rotationally matched in the first matching groove 214. Specifically, the first turntable 212 is provided with a plurality of fixing seats 213, the plurality of fixing seats 213 may be disposed on the outer periphery side of the first turntable 212 at intervals, the fixing seats 213 are provided with first matching grooves 214, one end of the first transmission member 23 is provided with a first cam 231, the first cam 231 is matched in the first matching grooves 214, the first cam 231 may rotate relative to the first matching grooves 214, and thus the first transmission member 23 may rotate relative to the first turntable 212.

In some embodiments, the second transmission member 24 is provided with a second mounting seat 243, the second mounting seat 243 is provided with a second mating groove 244, the other end of the first transmission member 23 is provided with a second cam 232, and the second cam 232 is rotationally mated in the second mating groove 244. Specifically, the second driving member 24 is provided with a second mounting seat 243, the second mounting seat 243 is provided with a second matching groove 244, one end of the first driving member 23 connected with the second driving member 24 is provided with a second cam 232, the second cam 232 is matched in the second matching groove 244, and the second cam 232 can rotate relative to the second matching groove 244, so that the second driving member 24 can rotate relative to the first driving member 23.

As shown in fig. 2, the driving assembly 21 further includes: the plurality of guide posts 215, the plurality of guide posts 215 pass through the first turntable 212, and the driving member 211 drives the first turntable 212 to move up and down along the guide posts 215. Specifically, the driving assembly 21 further includes a plurality of guide posts 215, the plurality of guide posts 215 penetrate through the first rotating disc 212, the plurality of guide posts 215 extend in a height direction, the guide posts 215 are perpendicular to the first rotating disc 212, the driving member 211 drives the first rotating disc 212 to move up and down along the guide posts 215, so as to drive one end of the first driving member 23 to move up and down, and the second driving member 24 moves up and down away from one end of the first driving member 23, so that the second positioning portion 241 moves up and down and cooperates with the first positioning portion 111.

As shown in fig. 7 and 8, the jig device 10 includes a jig 11, and the jig 11 includes: the base 112 and the movable plate 113, the base 112 is fixedly connected with the transmission device 12 and is movably connected with the movable plate 113. Specifically, each fixture 11 includes a base 112 and a movable plate 113, the base 112 is disposed on the transmission device 12, the plurality of fixtures 11 are uniformly and alternately disposed on the transmission device 12, the number of the bases 112 is multiple, the plurality of bases 112 are uniformly and alternately disposed on the transmission device 12, the base 112 is fixedly connected with the transmission device 12, the base 112 and the movable plate 113 are movably connected, the movable plate 113 can move up and down relative to the base 112, a first positioning portion 111 is disposed on the movable plate 113, and a pressure is applied to the first positioning portion 111 in the process of downward movement of the second positioning portion 241, so that the movable plate 113 moves downward to be abutted with the base 112, and accurate positioning of the fixtures 11 is completed.

Further, the jig 11 further includes: the pressing plate 117 and the elastic piece 114, the pressing plate 117 and the base 112 are fixedly connected, and the elastic piece 114 is clamped between the pressing plate 117 and the movable plate 113. Specifically, the fixture 11 further comprises a pressing plate 117 and an elastic piece 114, the pressing plate 117 is located above the base 112, the pressing plate 117 is fixed on the base 112, the movable plate 113 is located between the pressing plate 117 and the base 112, the elastic piece 114 is arranged between the pressing plate 117 and the movable plate 113, one end of the elastic piece 114 is fixedly connected with the pressing plate 117, the other end of the elastic piece 114 is fixedly connected with the movable plate 113, and the pressing plate 117 presses the movable plate 113 on the base 112 under the action of the elastic piece 114 to prevent the movable plate 113 from shaking. The elastic member 114 has elasticity, and the movable plate 113 moves between the pressing plate 117 and the base 112 to movably fit the movable plate 113 with the base 112.

Further, the movable plate 113 is provided with a third positioning portion 115, the base 112 is provided with a fourth positioning portion 116, and the third positioning portion 115 and the fourth positioning portion 116 are in clearance fit. Specifically, the movable plate 113 is further provided with a third positioning portion 115, the bottom plate is provided with a fourth positioning portion 116, and the third positioning portion 115 and the fourth positioning portion 116 are in clearance fit, so that the movable plate 113 and the base 112 are movably connected. The third positioning part 115 is one of a positioning column and a positioning hole, the fourth positioning part 116 is the other of the positioning column and the positioning hole, if the third positioning part 115 is the positioning column, the fourth positioning part 116 is the positioning hole, the size of the positioning column is smaller than the size of the positioning hole, and the positioning column is in clearance fit with the positioning hole; if the third positioning portion 115 is a positioning hole, the fourth positioning portion 116 is a positioning column, the size of the positioning column is smaller than that of the positioning hole, and the positioning column is in clearance fit with the positioning hole, so that the movable plate 113 is movably connected with the base 112 within a certain range.

In the description of the present utility model, it should 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", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (11)

1. A clamp assembly (100), comprising:

a plurality of jig devices (10), wherein a first positioning part (111) is arranged on the jig devices (10);

the transmission device (12) is used for driving the plurality of clamp devices (10) to move along a preset direction, and the plurality of clamp devices (10) are respectively and movably arranged on the transmission device (12);

-a positioning device (20), the positioning device (20) comprising: the driving assembly (21) and a plurality of transmission assemblies (22), wherein each transmission assembly (22) is provided with a second positioning part (241), and the driving assembly (21) is used for driving a plurality of the transmission assemblies (22) to move so that the second positioning parts (241) are matched with the first positioning parts (111) in a positioning mode.

2. The clamp assembly (100) of claim 1, wherein the first positioning portion (111) is one of a positioning post and a positioning hole, and the second positioning portion (241) is the other of the positioning post and the positioning hole, the positioning post and the positioning hole being selectively positioned in engagement.

3. The clamp assembly (100) of claim 1, wherein the transmission component (22) comprises: the device comprises a first transmission piece (23) and a second transmission piece (24), wherein one end of the first transmission piece (23) is in transmission connection with the driving assembly (21), the other end of the first transmission piece is in transmission connection with one end of the second transmission piece (24), the driving assembly (21) drives one end of the first transmission piece (23) to move towards a first direction so that the other end of the second transmission piece (24) moves towards a second direction, the other end of the second transmission piece (24) is provided with the second positioning part (241), and the directions of the first direction and the second direction are opposite.

4. The clamp assembly (100) of claim 3, wherein the transmission component (22) further comprises: the first installation seat (25), be provided with first sliding part (251) on first installation seat (25), be provided with second sliding part (242) on second driving medium (24), first sliding part (251) and second sliding part (242) follow second location portion (241) and first location portion (111) complex direction extension just first sliding part (251) with second sliding part (242) sliding fit.

5. The clamp assembly (100) according to claim 4, wherein the first mounting seat (25) is provided with a rotating shaft (252), the first transmission member (23) is provided with a first mounting hole, and the rotating shaft (252) passes through the first mounting hole and is rotationally connected with the first transmission member (23).

6. A clamp assembly (100) according to claim 3, wherein the drive component (21) comprises: the device comprises a driving piece (211) and a first rotating disc (212), wherein the driving piece (211) is in transmission connection with the first rotating disc (212), the driving piece (211) is used for driving the first rotating disc (212) to move in a first direction, and the first rotating disc (212) is in transmission connection with one end of a first transmission piece (23) so that one end of the first transmission piece (23) moves in the first direction.

7. The fixture assembly (100) according to claim 6, wherein a fixing seat (213) is provided on the first turntable (212), a first matching groove (214) is further provided on the fixing seat (213), a first cam (231) is provided at one end of the first transmission member (23), and the first cam (231) is rotationally matched in the first matching groove (214);

and a second mounting seat (243) is arranged on the second transmission member (24), a second matching groove (244) is arranged on the second mounting seat (243), a second cam (232) is arranged at the other end of the first transmission member (23), and the second cam (232) is in rotary fit in the second matching groove (244).

8. The clamp assembly (100) of claim 6, wherein the drive component (21) further comprises: the guide posts (215) penetrate through the first rotary table (212), and the driving piece (211) drives the first rotary table (212) to move up and down along the guide posts (215).

9. The clamp assembly (100) of claim 1, wherein the clamp device (10) comprises a clamp (11), the clamp (11) comprising: the base (112) is fixedly connected with the transmission device (12) and is movably connected with the movable plate (113).

10. The clamp assembly (100) of claim 9, wherein the clamp (11) further comprises: the pressing plate (117) is fixedly connected with the base (112), and the elastic piece (114) is clamped between the pressing plate (117) and the movable plate (113).

11. The clamp assembly (100) of claim 9, wherein a third positioning portion (115) is provided on the movable plate (113), a fourth positioning portion (116) is provided on the base (112), and the third positioning portion (115) and the fourth positioning portion (116) are in clearance fit.