Clamping assembly, clamping device and material frame

Abstract

The clamping assembly is used for the clamping device and comprises a driving part, a first claw and a second claw, the driving part comprises a first output shaft and a second output shaft, the first claw is in transmission connection with the first output shaft, the second claw is in transmission connection with the second output shaft, and the second claw and the first claw are oppositely arranged. The driving piece drives the first output shaft and the second output shaft to rotate synchronously so as to drive the first claw and the second claw to move oppositely in the opposite directions to clamp or loosen materials, and the material storage efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of racks, and particularly relates to a clamping assembly, a clamping device and a rack. Background Art

[0002] At present, a placing space is provided on the rack, and this placing space can be used to place materials. A large number of users use the rack for storage and transfer of materials, and the rack plays an important role in the storage of materials. In the prior art, it is necessary to manually take the materials and place them into the rack, and the efficiency of placing the materials is low. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a clamping assembly, a clamping device and a rack to solve the problem of low efficiency of placing materials.

[0004] To achieve the purpose of the utility model, the following technical solutions are provided:

[0005] In a first aspect, the utility model provides a clamping assembly, including: a driving member, including a first output shaft and a second output shaft; a first claw, drivingly connected to the first output shaft; a second claw, drivingly connected to the second output shaft, the second claw being disposed opposite to the first claw; wherein, the driving member drives the first output shaft and the second output shaft to rotate synchronously, so as to drive the first claw and the second claw to move relatively in opposite directions to clamp or release the material.

[0006] In an embodiment, the clamping assembly further includes a first transmission mechanism and a second transmission mechanism, the first claw is connected to the first output shaft through the first transmission mechanism, and the second claw is connected to the second output shaft through the second transmission mechanism.

[0007] In an embodiment, the first transmission mechanism includes a first output member and a first deceleration structure, the first output member is fixedly connected to the first output shaft, the first deceleration structure is cooperatively connected to the first output member, and the first claw is rotatably connected to the first deceleration structure.

[0008] In an embodiment, the second transmission mechanism includes a second output member and a second deceleration structure, the second output member is fixedly connected to the second output shaft, the second deceleration structure is cooperatively connected to the second output member, and the second claw is rotatably connected to the second deceleration structure.

[0009] In an embodiment, the first output member, the second output member, the first output shaft and the second output shaft are of an integral structure.

[0010] In one embodiment, the first output member is provided with a first thread, the second output member is provided with a second thread, the rotation direction of the second thread is opposite to that of the first thread, the first reduction structure is matched with the first thread transmission, and the second reduction structure is matched with the second thread transmission.

[0011] In one embodiment, the first reduction structure includes a first reduction gear and a second reduction gear connected along the axial direction, the first reduction gear is transmission-matched with the first output member, the second reduction gear is transmission-connected with the first claw, and the diameter of the first reduction gear is greater than the diameter of the second reduction gear.

[0012] In one embodiment, the second reduction structure also includes a third reduction gear and a fourth reduction gear connected along the axial direction, the third reduction gear is transmission-matched with the second output member, the fourth reduction gear is transmission-connected with the second claw, and the diameter of the third reduction gear is greater than the diameter of the fourth reduction gear.

[0013] In one embodiment, the first claw includes a first transmission rod and a first sleeve portion, the first sleeve portion is sleeved on the first transmission rod, the first transmission rod is transmission-connected to the first output shaft, and the first sleeve portion is a buffer component.

[0014] In a second aspect, the utility model further provides a clamping device, comprising a conveying component and a clamping component as described in any one of the various embodiments of the first aspect, wherein the conveying component is suitable for driving the clamping component to move.

[0015] In one embodiment, the conveying assembly includes a first guide rail and a second guide rail, the second guide rail is slidably connected to the first guide rail, the first guide rail is connected to the clamping assembly, the first guide rail extends along a first direction, the second guide rail extends along a second direction, and the second direction has an angle with the first direction.

[0016] In one embodiment, the clamping device further includes a third guide rail, which is arranged opposite to the second guide rail and has a spacing therebetween, and one end of the first guide rail is connected to the second guide rail, and the other end of the first guide rail is connected to the third guide rail.

[0017] In a third aspect, the utility model further provides a material rack, comprising a frame and a clamping device as described in any one of the various embodiments of the second aspect, wherein the clamping device is used to take and place materials on the frame.

[0018] In one embodiment, the material rack further includes a storage unit, wherein the storage unit is connected to the frame, and the frame has a placement position, wherein the placement position is suitable for placing the storage unit.

[0019] In one embodiment, the frame has a plurality of the placement positions, and the plurality of the placement positions are arranged in sequence.

[0020] In one embodiment, the storage unit further includes a first baffle, a second baffle and a support member. The first baffle and the second baffle are both connected to the frame. The first baffle and the second baffle are oppositely arranged and have a spacing distance. One end of the support member is connected to the first baffle, and the other end is connected to the second baffle. The support member is adapted to support the material.

[0021] In one embodiment, the storage unit further includes an indicating lamp. An installation hole is formed in the first baffle, and the indicating lamp is received in the installation hole.

[0022] By providing a driving member, a first claw and a second claw, the driving member includes a first output shaft and a second output shaft. The first claw is in transmission connection with the first output shaft, the second claw is in transmission connection with the second output shaft, and the second claw is oppositely arranged to the first claw. Wherein, the driving member drives the first output shaft and the second output shaft to rotate synchronously, so as to drive the first claw and the second claw to move relatively in opposite directions to clamp or release the material. By driving the first claw and the second claw by the driving member to store the material, manual operation is reduced, and the efficiency of material storage of the present utility model is improved. Description of the Drawings

[0023] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0024] Figure 1 is a schematic structural diagram of a clamping assembly of an embodiment;

[0025] Figure 2 is a schematic structural diagram of a clamping device of an embodiment;

[0026] Figure 3 is a schematic structural diagram of a rack of an embodiment;

[0027] Figure 4 is a schematic structural diagram of a frame of an embodiment;

[0028] Figure 5 is an external view schematic diagram of a rack of an embodiment;

[0029] Figure 6 is a schematic structural diagram of a storage unit of an embodiment;

[0030] Figure 7 It is an exploded view structure of a control component of an embodiment.

[0031] Explanation of reference numerals in the drawings:

[0032] 10 - clamping component, 11 - driving part, 12 - first claw, 121 - first transmission rod, 122 - first sleeved part, 13 - second claw, 131 - second transmission rod, 132 - second sleeved part, 14 - first transmission mechanism, 141 - first output part, 142 - first deceleration structure, 143 - first deceleration gear, 144 - second deceleration gear, 15 - second transmission mechanism, 151 - second output part, 152 - second deceleration structure, 153 - third deceleration gear, 154 - fourth deceleration gear, 20 - clamping device, 21 - first guide rail, 22 - second guide rail, 23 - third guide rail, 24 - first power part, 25 - second power part, 30 - material rack, 31 - frame, 32 - storage unit, 321 - first baffle, 3211 - mounting hole, 322 - second baffle, 323 - support part, 324 - indicating lamp, 33 - placing position, 34 - connecting plate, 35 - control component, 351 - control main board, 352 - main control housing. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0034] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time.

[0035] Unless otherwise defined, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the present utility model in the specification are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. The term "and / or" used in the present utility model includes any and all combinations of one or more of the related listed items.

[0036] Next, some embodiments of the present utility model will be described in detail in conjunction with the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0037] An embodiment of the present utility model provides a clamping assembly 10. Please refer to Figure 1 , which includes a driving member 11, a first claw 12 and a second claw 13.

[0038] The driving member 11 includes a first output shaft and a second output shaft. Optionally, there is an output angle between the first output shaft and the second output shaft, and this output angle is determined according to user requirements.

[0039] The first claw 12 is in transmission connection with the first output shaft.

[0040] The second claw 13 is in transmission connection with the second output shaft, and the second claw 13 is arranged opposite to the first claw 12. Optionally, there is a spacing distance between the second claw 13 and the first claw 12, and this spacing distance can be used to place materials.

[0041] Wherein, the driving member 11 drives the first output shaft and the second output shaft to rotate synchronously, so as to drive the first claw 12 and the second claw 13 to move relatively in opposite directions to clamp or release the material.

[0042] By setting the driving member 11, the first claw 12 and the second claw 13, the driving member 11 includes a first output shaft and a second output shaft, the first claw 12 is in transmission connection with the first output shaft, the second claw 13 is in transmission connection with the second output shaft, the second claw 13 is arranged opposite to the first claw 12. Wherein, the driving member 11 drives the first output shaft and the second output shaft to rotate synchronously, so as to drive the first claw 12 and the second claw 13 to move relatively in opposite directions to clamp or release the material. By driving the first claw 12 and the second claw 13 to store the material by the driving member 11, the manual operation is reduced, and the efficiency of material storage of the present utility model is improved.

[0043] In one embodiment, please refer to Figure 1 , the clamping assembly 10 further includes a first transmission mechanism 14 and a second transmission mechanism 15. The first claw 12 is in transmission connection with the first output shaft through the first transmission mechanism 14, and the second claw 13 is connected to the second output shaft through the second transmission mechanism 15.

[0044] Optionally, the first transmission mechanism 14 and the second transmission mechanism 15 are synchronously transmitted. Specifically, the first transmission mechanism 14 and the second transmission mechanism 15 improve the structure of the clamping assembly 10 and facilitate the operation of the clamping assembly 10.

[0045] In one embodiment, please refer to Figure 1 , the first transmission mechanism 14 includes a first output member 141 and a first deceleration structure 142. The first output member 141 is fixedly connected to the first output shaft, the first deceleration structure 142 is connected to the first output member 141 in a matching manner, and the first claw 12 is rotatably connected to the first deceleration structure 142.

[0046] Optionally, there is a first included angle between the axis of the first output member 141 and the axis of the first output shaft, and the first included angle is determined according to the requirements of the transmission. Optionally, the first output member 141 is a rod member.

[0047] Specifically, the first output member 141 and the first reduction structure 142 improve the transmission structure of the first transmission mechanism 14 and enhance the flexibility of the transmission.

[0048] In one embodiment, please refer to Figure 1 , the second transmission mechanism 15 includes a second output member 151 and a second reduction structure 152. The second output member 151 is fixedly connected to the second output shaft, the second reduction structure 152 is connected to the second output member 151 in a mating manner, and the second claw 13 is rotatably connected to the second reduction structure 152.

[0049] Optionally, there is a second included angle between the axis of the second output member 151 and the axis of the second output shaft, and the second included angle is determined according to the requirements of the transmission. Optionally, the second output member 151 is a rod member.

[0050] Specifically, the second output member 151 and the second reduction structure 152 improve the transmission structure of the second transmission mechanism 15 and enhance the flexibility of the transmission.

[0051] In one embodiment, please refer to Figure 1 , the first output member 141, the second output member 151, the first output shaft and the second output shaft are of an integral structure.

[0052] Optionally, the first output member 141, the second output member 151, the first output shaft and the second output shaft are integrated. Specifically, the above settings of the first output member 141, the second output member 151, the first output shaft and the second output shaft facilitate the setting of the transmission structure and save space.

[0053] In one embodiment, please refer to Figure 1 , the first output member 141 is provided with a first thread, the second output member 151 is provided with a second thread, the helix direction of the second thread is opposite to that of the first thread, the first reduction structure 142 is in transmission cooperation with the first thread, and the second reduction structure 152 is in transmission cooperation with the second thread.

[0054] Optionally, the helix direction of the second thread is opposite to that of the first thread, the first output member 141 is rotatably connected to the first reduction structure 142, and the second output member 151 is rotatably connected to the second reduction structure 152, so that the rotation directions of the first reduction structure 142 and the second reduction structure 152 are opposite.

[0055] Specifically, the above settings of the first output member 141 and the second output member 151 improve the structure of the clamping assembly 10 and save the components required for transmission.

[0056] In one embodiment, please refer to Figure 1 , the first reduction structure 142 includes a first reduction gear 143 and a second reduction gear 144 connected axially. The first reduction gear 143 is in driving cooperation with the first output member 141, the second reduction gear 144 is connected to the first claw 12, and the diameter of the first reduction gear 143 is larger than that of the second reduction gear 144.

[0057] Optionally, the axes of the first reduction gear 143 and the second reduction gear 144 coincide. Optionally, the first reduction gear 143 is in driving cooperation with the first output member 141.

[0058] Specifically, the above settings improve the structure of the first reduction structure 142, change the rotational speed of the transmission, and further decelerate to enhance the grasping ability of the first claw 12.

[0059] In one embodiment, please refer to Figure 1 , the second reduction structure 152 further includes a third reduction gear 153 and a fourth reduction gear 154 connected axially. The third reduction gear 153 is in driving cooperation with the second output member 151, the fourth reduction gear 154 is connected to the second claw 13, and the diameter of the third reduction gear 153 is larger than that of the fourth reduction gear 154.

[0060] Optionally, the axes of the third reduction gear 153 and the fourth reduction gear 154 coincide. Optionally, the third reduction gear 153 is in driving cooperation with the second output member 151.

[0061] Specifically, the above settings improve the structure of the second reduction structure 152, change the rotational speed of the transmission, and further decelerate to enhance the grasping ability of the second claw 13.

[0062] Optionally, please refer to Figure 1 , the rotation direction of the first reduction gear 143 is opposite to that of the third reduction gear 153.

[0063] Specifically, the above settings enable the first claw 12 and the second claw 13 to move in opposite directions, improving the flexibility of the movement of the clamping assembly 10.

[0064] In one embodiment, please refer to Figure 1 , the first claw 12 includes a first transmission rod 121 and a first sleeved portion 122. The first sleeved portion 122 is sleeved on the first transmission rod 121. The first transmission rod 121 is connected to the first output shaft, and the first sleeved portion 122 is a buffer member.

[0065] Optionally, both the first claw 12 and the second claw 13 are coated with silica gel. Optionally, the first sleeving part 122 is a first rotating sleeve. Optionally, a first groove is formed on the first claw 12, and the first sleeving part 122 is arranged in the first groove. Optionally, under the combined action of the first sleeving part 122 and the first transmission mechanism 14, the first claw 12 has two degrees of freedom, namely rotation around the center of the first sleeving part 122 and sliding along the first groove in the middle of the first transmission rod 121, finally forming the swing of the first claw 12.

[0066] Specifically, the above settings improve the structure of the first claw 12 and enhance the flexibility of the movement of the first claw 12.

[0067] Optionally, the second claw 13 includes a second transmission rod 131 and a second sleeving part 132. The second sleeving part 132 is sleeved on the second transmission rod 131, and the second transmission rod 131 is in transmission connection with the second output shaft. Optionally, the second sleeving part 132 is a second rotating sleeve. Optionally, a second groove is formed on the second claw 13, and the second sleeving part 132 is arranged in the second groove. Optionally, under the combined action of the second sleeving part 132 and the second transmission mechanism 15, the second claw 13 has two degrees of freedom, namely rotation around the center of the second sleeving part 132 and sliding along the second groove in the middle of the second transmission rod 131, finally forming the swing of the second claw 13. Specifically, the above settings improve the structure of the second claw 13 and enhance the flexibility of the movement of the second claw 13.

[0068] The embodiment of the present utility model further provides a clamping device 20. Please refer to Figure 1 、 Figure 2 and Figure 3 , which includes a conveying component and the aforementioned clamping component. The conveying component is adapted to drive the clamping component 10 to move.

[0069] In one embodiment, please refer to Figure 1 、 Figure 2 and Figure 3 , the conveying component includes a first guide rail 21 and a second guide rail 22. The second guide rail 22 is slidably connected to the first guide rail 21. The first guide rail 21 is connected to the clamping component 10. The first guide rail 21 extends along a first direction, and the second guide rail 22 extends along a second direction. The second direction has an included angle with the first direction.

[0070] Optionally, the range of this included angle can be from 10 degrees to 90 degrees. Specifically, this included angle can specifically be but is not limited to 10 degrees, 30 degrees, 50 degrees, 90 degrees, etc. Optionally, the lengths of the first guide rail 21 and the second guide rail 22 are both determined according to requirements.

[0071] Optionally, please refer to Figure 1 、 Figure 2 and Figure 3, the clamping device 20 further includes a first power member 24. The first power member 24 is connected to both the first guide rail 21 and the clamping assembly 10. The first power member 24 drives the clamping assembly 10 to move along the first guide rail 21.

[0072] Optionally, the first power member 24 is a first motor. Optionally, the clamping device 20 further includes a housing that encloses an accommodation space. The accommodation space houses at least part of the clamping assembly 10 and the first motor. Specifically, the first power member 24 improves the structure of the clamping device 20 and increases the moving range of the clamping assembly 10.

[0073] Optionally, please refer to Figure 1 , Figure 2 and Figure 3 , the clamping device 20 further includes a second power member 25. The second power member 25 is connected to the second guide rail 22. The second power member 25 drives the first guide rail 21 to slide along the second guide rail 22.

[0074] Optionally, the second power member 25 is a second motor, and the second guide rail 22 is a lead screw. Optionally, the clamping device 20 further includes a guide rod that is connected to the first guide rail 21 and is parallel to the second guide rail 22. Specifically, the second power member 25 improves the structure of the clamping device 20 and increases the moving range of the clamping assembly 10.

[0075] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 3 , the clamping device 20 further includes a third guide rail 23. The third guide rail 23 is disposed opposite to the second guide rail 22 with a spacing distance. One end of the first guide rail 21 is connected to the second guide rail 22, and the other end is connected to the third guide rail 23.

[0076] Specifically, the third guide rail 23 guides the first guide rail 21 and provides a fixed support for the first guide rail 21.

[0077] The embodiment of the present invention further provides a rack 30. Please refer to Figure 1 , Figure 2 and Figure 3 , which includes a frame 31 and the clamping device 20 as described above. The clamping device 20 is used to pick and place materials on the frame 31. Optionally, the frame 31 is a rigid connection structure. The frame 31 includes a transverse structural member and a longitudinal structural member. The transverse structural member and the longitudinal structural member are assembled by welding respectively to form a basic skeleton. The advantage of this structure is that it can be used as the basic skeleton for various electronic components.

[0078] In one embodiment, please refer to Figure 5 and Figure 6, the rack 30 further includes a storage unit 32. The storage unit 32 is connected to the frame 31. The frame 31 has a placement position 33, and the placement position 33 is adapted to place the storage unit 32.

[0079] Optionally, the number of storage units 32, the number of placement positions 33, and the size of the placement positions 33 are determined according to requirements.

[0080] In one embodiment, please refer to Figure 5 and Figure 6 , the frame 31 has a plurality of placement positions 33, and the plurality of placement positions 33 are arranged in sequence.

[0081] Optionally, please refer to Figure 5 and Figure 6 , the number of storage units 32 is multiple, the number of placement positions 33 is multiple, and each placement position 33 is set in one-to-one correspondence with a storage unit 32.

[0082] Optionally, two adjacent storage units 32 at the same horizontal height abut against each other. Specifically, the above setting enables the rack 30 to place multiple storage units 32.

[0083] Optionally, please refer to Figure 4 and Figure 5 , the frame 31 includes a plurality of connecting plates 34 arranged at intervals. Two opposite connecting plates 34 at the same horizontal height form a placement position 33.

[0084] Optionally, the frame 31 can be composed of square steel pipes. A wire groove can be installed at the height difference position between the length direction and the width direction of the frame 31 to ensure that a large number of wires can have sufficient space for accommodation.

[0085] Optionally, two opposite connecting plates 34 at the same horizontal height form a plurality of placement positions 33. Specifically, the above setting improves the structure of the frame 31 and enhances the stability of placing the storage unit 32.

[0086] In one embodiment, please refer to Figure 6 , the storage unit 32 further includes a first baffle 321, a second baffle 322, and a support member 323. Both the first baffle 321 and the second baffle 322 are connected to the frame 31. The first baffle 321 and the second baffle 322 are arranged oppositely and have a spacing distance. One end of the support member 323 is connected to the first baffle 321, and the other end is connected to the second baffle 322. The support member 323 is adapted to support materials.

[0087] Optionally, the support member 323 can be multiple wires arranged at intervals. The structure with wires as the main body greatly reduces the overall mass of the rack and saves space. For the requirements of various types of materials, only the distance between the upper and lower layers of wires needs to be adjusted. Optionally, the number of support members 323 is multiple, and the multiple support members 323 are arranged at intervals in the first direction. Optionally, the multiple support members 323 are arranged at equal intervals in the first direction. Specifically, the above settings improve the structure of the storage unit 32 and enhance the stability of placing the storage unit 32.

[0088] In one embodiment, please refer to Figure 6 , the storage unit 32 further includes an indicating lamp 324. An installation hole 3211 is formed on the first baffle 321, and the indicating lamp 324 is received in the installation hole 3211.

[0089] Optionally, please refer to Figure 7 , the rack 30 further includes a control component 35. The control component 35 includes a control main board 351 and a main control housing 352. The main control housing 352 encloses a receiving cavity, and the control main board 351 is received in the receiving cavity. The control main board 351 is electrically connected to the indicating lamp 324, the driving member 11, the first motor, and the second motor. When the control main board 351 receives a storage instruction, the control main board 351 retrieves the result of the current placement position 33 monitor, stores the information of the empty material position in the control main board 351, the indicating lamp 324 flashes, the clamping component 10 clamps the material, and pushes the material onto the support member 323.

[0090] Optionally, the control component 35 is fixed at the top of the column of the rack. The opening of the main control housing 352 faces the outside of the rack. When internal maintenance is required, it can be quickly disassembled and assembled by screws. The inside of the control component 35 further includes a power supply assembly, which is provided with heat dissipation ventilation holes and is bent at the lower end to ensure that the power supply assembly can be placed on it. There is some clearance at both ends of the bend to facilitate wiring.

[0091] Optionally, the storage unit 32 further includes a matching lampshade and a fixing buckle. The matching lampshade cooperates with the indicating lamp 324, and the fixing buckle fixes the indicating lamp 324 on the storage unit 32. Iron wire brackets are welded on the first baffle 321 and the second baffle 322 of the storage unit 32, and iron wires are welded on the iron wire brackets.

[0092] Specifically, the indicating lamp 324 facilitates the timely observation of the material placement position 33.

[0093] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0094] The above-disclosed is only a preferred embodiment of the present utility model. Of course, it cannot be used to limit the scope of rights of the present utility model. Those of ordinary skill in the art can understand the entire or part of the processes of implementing the above embodiments, and the equivalent changes made according to the present utility model still fall within the scope covered by the present utility model.

Claims

1. A clamping assembly, characterized in that: include: A driving member, comprising a first output shaft and a second output shaft; A first claw, drivingly connected to the first output shaft; a second claw, drivingly connected to the second output shaft, the second claw being arranged opposite to the first claw; The driving member drives the first output shaft and the second output shaft to rotate synchronously, so as to drive the first claw and the second claw to move relative to each other in opposite directions, so as to clamp or release the material.

2. The clamping assembly according to claim 1, characterized in that: The clamping assembly further includes a first transmission mechanism and a second transmission mechanism, the first claw is connected to the first output shaft via the first transmission mechanism, and the second claw is connected to the second output shaft via the second transmission mechanism.

3. The clamping assembly according to claim 2, characterized in that: The first transmission mechanism includes a first output member and a first reduction structure, the first output member is fixedly connected to the first output shaft, the first reduction structure is cooperatively connected to the first output member, and the first claw is rotationally connected to the first reduction structure.

4. The clamping assembly according to claim 3, characterized in that: The second transmission mechanism includes a second output member and a second reduction structure, the second output member is fixedly connected to the second output shaft, the second reduction structure is cooperatively connected to the second output member, and the second claw is rotationally connected to the second reduction structure.

5. The clamping assembly according to claim 4, characterized in that: The first output member, the second output member, the first output shaft and the second output shaft are an integrated structure.

6. The clamping assembly according to claim 4, characterized in that: The first output member is provided with a first thread, the second output member is provided with a second thread, the rotation direction of the second thread is opposite to that of the first thread, the first reduction structure is in transmission cooperation with the first thread, and the second reduction structure is in transmission cooperation with the second thread.

7. The clamping assembly according to claim 6, characterized in that The first reduction gear structure includes a first reduction gear and a second reduction gear connected in an axial direction, the first reduction gear is drivingly matched with the first output member, the second reduction gear is drivingly connected with the first claw, and the diameter of the first reduction gear is greater than the diameter of the second reduction gear.

8. The clamping assembly according to claim 7, characterized in that: The second reduction structure also includes a third reduction gear and a fourth reduction gear connected in the axial direction, the third reduction gear is in transmission cooperation with the second output member, the fourth reduction gear is in transmission connection with the second claw, and the diameter of the third reduction gear is greater than the diameter of the fourth reduction gear.

9. The clamping assembly according to claim 1, characterized in that: The first claw includes a first transmission rod and a first sleeve portion, the first sleeve portion is sleeved on the first transmission rod, the first transmission rod is transmission-connected to the first output shaft, and the first sleeve portion is a buffer component.

10. A clamping device, characterized in that: It comprises a conveying component and a clamping component as claimed in any one of claims 1 to 9, wherein the conveying component is suitable for driving the clamping component to move.

11. The clamping device according to claim 10, characterized in that: The conveying assembly includes a first guide rail and a second guide rail, the second guide rail is slidably connected to the first guide rail, the first guide rail is connected to the clamping assembly, the first guide rail extends along a first direction, the second guide rail extends along a second direction, and the second direction has an angle with the first direction.

12. The clamping device according to claim 11, characterized in that: The clamping device also includes a third guide rail, which is arranged opposite to the second guide rail and has a spacing therebetween. One end of the first guide rail is connected to the second guide rail, and the other end is connected to the third guide rail.

13. A material rack, characterized in that: It comprises a frame and a clamping device as claimed in any one of claims 10 to 12, wherein the clamping device is used to take and place materials on the frame.

14. The material rack according to claim 13, characterized in that: The material rack further comprises a storage unit, wherein the storage unit is connected to the frame, and the frame has a placement position, wherein the placement position is suitable for placing the storage unit.

15. The material rack according to claim 14, characterized in that: The frame has a plurality of placement positions, and the plurality of placement positions are arranged in sequence.

16. The material rack according to claim 14, characterized in that: The storage unit also includes a first baffle, a second baffle and a support member, the first baffle and the second baffle are both connected to the frame, the first baffle and the second baffle are arranged opposite to each other and have a spacing distance, one end of the support member is connected to the first baffle, and the other end is connected to the second baffle, and the support member is suitable for supporting the material.

17. The material rack according to claim 16, characterized in that: The storage unit further includes a signal light. The first baffle is provided with a mounting hole for accommodating the signal light.

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