Weighing device

Abstract

The utility model relates to the technical field of carrying equipment, in particular to a weighing device. The weighing device comprises a weighing mechanism, a clamping mechanism and a connecting flange, a weighing sensor and a limiting structure are arranged in the weighing mechanism, the limiting structure is configured to limit the deformation amount of the weighing sensor, the clamping mechanism is hung below the weighing sensor, the clamping mechanism is configured to clamp a workpiece, and the connecting flange is connected with the clamping mechanism. The weighing sensor is configured to weigh the workpiece and the clamping mechanism, one end face of the connecting flange is connected with the weighing sensor, the other end of the connecting flange is fixedly connected with the end face of the clamping mechanism, the weight of the workpiece can be detected in the workpiece carrying process, the weight detection efficiency of the workpiece is improved, and the actual requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of material handling equipment technology, and in particular to a weighing device. Background Technology

[0002] In the workpiece processing production line, handling devices are needed to clamp and fix the workpieces and move them between various processing units. Furthermore, after each processing unit processes the workpiece, it needs to be weighed to verify its quality. Moreover, the workpiece needs to be weighed once after processing at each processing unit.

[0003] In related technologies, the weighing and inspection of workpieces requires a transport device to transfer and fix the workpiece and move it to a weighing platform, where the platform measures its weight. After the weighing and inspection are completed, the transport device re-clamps and fixes the workpiece and moves it to the next processing unit for the next step. This method of weighing workpieces requires repeatedly moving the workpiece to the weighing platform for weighing and inspection, which is cumbersome, reduces processing efficiency, and fails to meet actual processing needs. Furthermore, it requires specific design of the transport path for the transport device, increasing the complexity of its layout.

[0004] Therefore, there is an urgent need to invent a weighing device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a weighing device that can accurately detect the weight of a workpiece during the clamping and fixing process, with high detection efficiency, and meet actual processing needs.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Weighing device, including:

[0008] A weighing mechanism, which includes a weighing sensor and a limiting structure, wherein the limiting structure is configured to limit the deformation of the weighing sensor;

[0009] A clamping mechanism, suspended below the load cell, is configured to clamp a workpiece, and the load cell is configured to weigh the workpiece and the clamping mechanism; and

[0010] A connecting flange is provided, one end face of which is connected to the weighing sensor, and the other end of which is fixedly connected to the end face of the clamping mechanism.

[0011] As an optional solution, the following are also included:

[0012] A conveying mechanism is connected to the weighing mechanism, and the conveying mechanism can drive the weighing mechanism to move arbitrarily within space.

[0013] As an optional solution, the weighing mechanism includes:

[0014] The first housing is fixedly connected to the conveying mechanism;

[0015] Both the weighing sensor and the limiting structure are fixed inside the first housing; and

[0016] An adapter is clamped between the connecting flange and the load cell.

[0017] As an optional solution, the limiting structure includes:

[0018] A first limiting structure is fixedly connected to the first housing, and the first limiting structure is configured to limit the downward movement of the adapter to an extreme position; and

[0019] The second limiting structure is fixedly connected to the first housing, and the second limiting structure is configured to limit the upward movement of the adapter to the extreme position.

[0020] As an optional solution, the first limiting structure includes:

[0021] The connector is fixedly connected to the first housing; and

[0022] A limiting plate is fixedly connected to the connecting member, the limiting plate is located below the adapter, and the limiting plate is configured to abut against the adapter.

[0023] As an optional solution, the weighing mechanism further includes:

[0024] A locking element that can be fixedly connected to both the first housing and the adapter.

[0025] As an optional solution, the clamping mechanism includes:

[0026] The second housing, wherein the connecting flange is fixed to the end face of the second housing facing the weighing mechanism;

[0027] The drive assembly is fixed inside the second housing;

[0028] Two grippers arranged opposite each other in the horizontal direction form a clamping space between them for clamping the workpiece;

[0029] The output end of the drive component is connected to two grippers arranged opposite each other in the horizontal direction. The drive component can drive the two grippers arranged opposite each other in the horizontal direction to move towards each other or away from each other.

[0030] As an optional solution, the driving component includes:

[0031] The drive component is fixed inside the second housing;

[0032] A lead screw extends horizontally and is connected to the output end of the drive unit, which is capable of driving the lead screw to rotate about the axis of the lead screw.

[0033] A first slider and a second slider are respectively sleeved on the outer periphery of the lead screw. The first slider and the second slider are respectively fixed with a clamp. Either the first slider and the second slider are threadedly engaged with the lead screw, and the other slider is fixedly connected to the second housing, and the lead screws do not contact each other.

[0034] As an optional solution, the clamping mechanism further includes:

[0035] A transmission assembly is disposed within the second housing. The input end of the transmission assembly is connected to the output end of the drive member, and the output end of the transmission assembly is connected to the lead screw. The transmission assembly is configured to change the transmission direction of the drive member.

[0036] As an optional solution, at least one layer of elastic buffer gasket is provided between the connecting flange and the clamping mechanism.

[0037] The beneficial effects of this utility model are:

[0038] The weighing device provided by this utility model, by setting a weighing sensor and a limiting structure in the weighing mechanism, and using a connecting flange to connect the weighing sensor and the clamping mechanism, allows the clamping mechanism to be suspended at the lower end of the weighing sensor. The weighing sensor weighs the clamping mechanism. When the clamping mechanism clamps and fixes the workpiece, the weighing sensor can detect the weight of the workpiece clamped and fixed by the clamping mechanism. This realizes the simultaneous weighing of the workpiece while the clamping mechanism is clamping and fixing it, improving the efficiency of workpiece weight detection and meeting practical needs. By limiting the deformation of the weighing sensor through the limiting structure, the weighing sensor can be deformed within the normal deformation range, improving the protection of the weighing sensor and ensuring its normal operation. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the weighing device provided in an embodiment of the present invention;

[0040] Figure 2 This is a schematic diagram of the weighing mechanism and elastic buffer structure provided in this embodiment of the utility model;

[0041] Figure 3 This is a schematic diagram of the clamping mechanism provided in an embodiment of the present utility model;

[0042] Figure 4 This is a first cross-sectional schematic diagram of the weighing mechanism and elastic buffer structure provided in this embodiment of the utility model;

[0043] Figure 5 This is a second cross-sectional schematic diagram of the weighing mechanism and elastic buffer structure provided in this embodiment of the utility model;

[0044] Figure 6 This is a third cross-sectional schematic diagram of the weighing mechanism and elastic buffer structure provided in this embodiment of the utility model;

[0045] Figure 7 This is a first cross-sectional schematic diagram of the clamping mechanism provided in this embodiment of the utility model;

[0046] Figure 8 This is a second cross-sectional schematic diagram of the clamping mechanism provided in this embodiment of the utility model.

[0047] In the picture:

[0048] 100 Weighing mechanism; 110 Weighing sensor; 120 First housing; 130 Adapter; 131 First adapter part; 132 Second adapter part; 140 First limiting structure; 141 Limiting plate; 1411 Clearance hole; 142 Connector; 150 Second limiting structure; 160 First circuit board; 170 Second circuit board; 180 Connecting wire harness; 190 Locking component;

[0049] 200. Clamping mechanism; 210. Gripper; 220. Drive assembly; 221. Drive component; 222. Lead screw; 223. First slider; 224. Second slider; 230. Transmission assembly; 231. First gear; 232. Second gear; 233. Third gear; 234. Bearing; 240. Dustproof net; 250. Second housing; 251. Mating shaft; 260. Third circuit board; 270. Fourth circuit board;

[0050] 300. Connecting flange. Detailed Implementation

[0051] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not the entire structure.

[0052] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0053] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0054] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0055] In a workpiece processing production line, a transport device is needed to clamp and fix the workpiece and move it between various processing units. After each processing unit processes the workpiece, it needs to be weighed to verify its quality. Furthermore, the workpiece needs to be weighed after each processing unit completes its processing. For this weighing, the transport device transfers and fixes the workpiece, moving it to a weighing platform where its weight is measured. After weighing, the transport device re-clamps and fixes the workpiece and moves it to the next processing unit for the next step. This method of weighing workpieces requires repeatedly moving them to the weighing platform for measurement, which is cumbersome, reduces processing efficiency, fails to meet actual processing requirements, and necessitates a specially designed transport path, increasing the complexity of the transport device's layout.

[0056] To solve the above problems, such as Figures 1-3As shown, this embodiment provides a weighing device. The weighing device includes a weighing mechanism 100, a clamping mechanism 200, and a connecting flange 300. The weighing mechanism 100 is internally provided with a weighing sensor 110 and a limiting structure. The limiting structure is configured to limit the deformation of the weighing sensor 110. The clamping mechanism 200 is suspended below the weighing sensor 110 and is configured to clamp a workpiece. The weighing sensor 110 is configured to weigh the workpiece and the clamping mechanism 200. One end face of the connecting flange 300 is connected to the weighing sensor 110, and the other end of the connecting flange 300 is fixedly connected to the end face of the clamping mechanism 200.

[0057] This weighing device incorporates a weighing sensor 110 and a limiting structure within the weighing mechanism 100. A connecting flange 300 connects the weighing sensor 110 and the clamping mechanism 200, suspending the clamping mechanism 200 below the weighing sensor 110. The weighing sensor 110 weighs the clamping mechanism 200. When the clamping mechanism 200 clamps and fixes a workpiece, the weighing sensor 110 detects the weight of the workpiece, achieving simultaneous weighing and clamping of the workpiece. This improves the efficiency of workpiece weight detection and meets practical needs. The limiting structure restricts the deformation of the weighing sensor 110, ensuring it deforms within a normal range and protecting it to guarantee its normal operation. It should be noted that the specific structure and working principle of the weighing sensor 110 are existing technologies and will not be elaborated upon here.

[0058] In this embodiment, the weighing device also includes a conveying mechanism (not shown in the figure), which is connected to the weighing mechanism 100. The conveying mechanism can drive the weighing mechanism 100 to move arbitrarily in space so that the workpiece clamped and fixed by the clamping mechanism 200 can be transferred between various processing devices.

[0059] To further improve the detection accuracy of the load cell 110, at least one elastic buffer gasket is provided between the connecting flange 300 and the clamping mechanism 200. By providing at least one elastic buffer gasket between the connecting flange 300 and the clamping mechanism 200, the elastic buffer gasket absorbs the vibration and impact transmitted by the clamping mechanism 200 to the load cell 110, thereby improving the weighing accuracy of the weighing mechanism 100 and achieving accurate detection of the workpiece weight.

[0060] In this embodiment, the elastic buffer pad is a rubber pad. The rubber pad is fixedly connected to the connecting flange 300 and the clamping mechanism 200 by adhesive bonding. Rubber has good elasticity and toughness, and a long service life. When the clamping mechanism 200 transmits vibration and impact to the load cell 110, the rubber pad can absorb the vibration and impact by its own elastic deformation, thereby improving the protection of the load cell 110 and improving the detection accuracy of the load cell 110. In other embodiments, the two axial ends of the spring can also be connected to the clamping mechanism 200 and the connecting flange 300 respectively to absorb the vibration and impact transmitted by the clamping mechanism 200.

[0061] In an optional embodiment, when the clamping mechanism 200 is not clamping or fixing the workpiece, the weighing sensor 110 detects zero weight of the clamping mechanism 200. By ensuring that the weighing sensor 110 detects zero weight of the clamping mechanism 200 when the clamping mechanism 200 is clamping or fixing the workpiece, the forming detection data obtained by the weighing sensor 110 when the clamping mechanism 200 clamps and fixes the workpiece is the weight of the workpiece, which facilitates the collection of workpiece weight information.

[0062] As an optional solution, such as Figure 4 As shown, the weighing mechanism 100 includes a first housing 120 and an adapter 130. The first housing 120 is fixedly connected to the conveying mechanism, and the load cell 110 and the limiting structure are both fixed inside the first housing 120. The adapter 130 is clamped between the connecting flange 300 and the load cell 110. By additionally providing the adapter 130 between the connecting flange 300 and the load cell 110, it is easier to suspend and fix the clamping mechanism 200. In addition, in this embodiment, the weighing mechanism 100 also includes a first circuit board 160, a second circuit board 170, and a connecting harness 180. The weighing device also includes a control mechanism. The first circuit board 160 and the second circuit board 170 are respectively fixed inside the first housing 120. The first circuit board 160 is communicatively connected to the weighing sensor 110 and the second circuit board 170 through the connecting harness 180. The second circuit board 170 is communicatively connected to the control mechanism through the connecting harness 180 to transmit the detection information of the weighing sensor 110 to the control mechanism. The control mechanism is used to store the detection information of the weighing sensor 110.

[0063] As an optional solution, the weighing device also includes a display module, which is connected to the control mechanism via a connecting harness 180 so that the display module can display the detection information of the weighing sensor 110.

[0064] Optionally, the weighing mechanism 100 further includes a first limiting structure 140 and a second limiting structure 150. The first limiting structure 140 is fixedly connected to the first housing 120 and is configured to limit the downward movement of the adapter 130 to its extreme position. The second limiting structure 150 is fixedly connected to the first housing 120 and is configured to limit the upward movement of the adapter 130 to its extreme position. By fixing the first limiting structure 140 and the second limiting structure 150 to the first housing 120 respectively, and by using the first limiting structure 140 to limit the downward movement of the adapter 130 and the second limiting structure 150 to limit the upward movement of the adapter 130, it is ensured that the adapter 130 moves within a specified range. This prevents the clamping mechanism 200 from driving the adapter 130 to move out of bounds and damaging the load cell 110, thereby improving the protection of the load cell 110.

[0065] Combination Figure 5 and Figure 6 The specific structure of the first limiting structure 140 is described below. The first limiting structure 140 includes a connector 142 and a limiting plate 141. The connector 142 is fixedly connected to the first housing 120, and the limiting plate 141 is fixedly connected to the connector 142. The limiting plate 141 is located below the adapter 130 and is configured to abut against the adapter 130.

[0066] In this embodiment, the adapter 130 includes a first adapter portion 131 and a second adapter portion 132 arranged sequentially from top to bottom. The first adapter portion 131 is connected to the weighing sensor 110, and the second adapter portion 132 is connected to the connecting flange 300. The horizontal dimension of the first adapter portion 131 is larger than that of the second adapter portion 132. The limiting plate 141 has a clearance hole 1411 that is directly opposite to the second adapter portion 132. The second adapter portion 132 can extend into the clearance hole 1411, while the first adapter portion 131 cannot extend into the clearance hole 1411. When the adapter 130 moves downward, the downward movement of the adapter 130 is limited by the contact between the first adapter portion 131 and the limiting plate 141.

[0067] It should be noted that the connecting member 142 is a screw, which extends downward from the top of the first housing 120 and is threadedly fixed to the limiting plate 141. Furthermore, to further simplify the structure of the weighing mechanism 100, the second limiting structure 150 only includes a screw, which extends downward from the top of the first housing 120 and abuts against the first adapter 131 to limit the upward movement of the first adapter 131.

[0068] In some embodiments, the weighing mechanism 100 further includes a locking member 190, which is capable of being fixedly connected to both the first housing 120 and the adapter 130 simultaneously. By using the locking member 190 to simultaneously fix the first housing 120 and the adapter 130 together, the first housing 120 and the adapter 130 can be secured together during the transportation of the weighing mechanism 100, preventing the adapter 130 from moving freely during transportation. When the weighing mechanism 100 is in operation, the locking member 190 can be removed or completely separated from the adapter 130 to prevent the locking member 190 from affecting the weighing sensor 110.

[0069] In an alternative embodiment, such as Figure 7 As shown, the clamping mechanism 200 includes a second housing 250, a drive assembly 220, and two grippers 210 arranged opposite each other in the horizontal direction. The connecting flange 300 is clamped between the second housing 250 and the second adapter portion 132 on the adapter 130. The drive assembly 220 is fixed inside the second housing 250. A clamping space for clamping workpieces is formed between the two grippers 210 arranged opposite each other in the horizontal direction. The output end of the drive assembly 220 is connected to the two grippers 210 arranged opposite each other in the horizontal direction. The drive assembly 220 can drive the two grippers 210 arranged opposite each other in the horizontal direction to move towards each other or away from each other. When a workpiece needs to be clamped and fixed, the drive assembly 220 drives two horizontally oriented opposing jaws 210 to move towards each other, thereby reducing the size of the clamping space between the two jaws 210 and clamping and fixing the workpiece within the clamping space. When it is necessary to release the clamped and fixed workpiece, the drive assembly 220 drives the two horizontally oriented opposing jaws 210 to move away from each other, thereby increasing the clamping space between the two jaws 210 and releasing the clamped and fixed workpiece. It should be noted that in this embodiment, the two jaws 210 are oriented relative to each other in the left-right direction in the horizontal plane. In other embodiments, the relative orientation of the two jaws 210 in the horizontal plane can be arbitrarily adjusted according to actual needs; this embodiment does not impose specific limitations.

[0070] In addition, in this embodiment, the clamping mechanism 200 also includes a third circuit board 260 and a fourth circuit board 270. The third circuit board 260 is connected to the drive assembly 220 and the fourth circuit board 270 via a connecting harness 180, and the fourth circuit board 270 is connected to the control mechanism via a connecting harness 180.

[0071] As an optional solution, the drive assembly 220 includes a drive member 221, a lead screw 222, a first slider 223, and a second slider 224. The drive member 221 is fixed inside the second housing 250. The lead screw 222 extends horizontally and is connected to the output end of the drive member 221. The drive member 221 can drive the lead screw 222 to rotate around the axial direction of the lead screw 222. The first slider 223 and the second slider 224 are respectively sleeved on the outer periphery of the lead screw 222. The first slider 223 and the second slider 224 are respectively fixed with a gripper 210. Either the first slider 223 or the second slider 224 is threadedly engaged with the lead screw 222, and the other one is fixedly connected to the second housing 250, and the lead screws 222 do not contact each other. The drive component 221 drives the lead screw 222 to rotate around its axial direction. Combined with the threaded engagement of either the first slider 223 or the second slider 224 with the lead screw 222, this drives the first slider 223 and the second slider 224 to move towards or away from each other. This, in turn, drives the two grippers 210, respectively fixed to the first slider 223 and the second slider 224, to move towards or away from each other. It should be noted that in this embodiment, the first slider 223 is threaded with the lead screw 222, while the second slider 224 is not threaded with the lead screw 222, so that the lead screw 222 drives the first slider 223 to move along the axial direction of the lead screw 222. In other embodiments, the first slider 223 may not be threaded with the lead screw 222, while the second slider 224 may be threaded with the lead screw 222. This embodiment does not impose a specific limitation.

[0072] To allow the first slider 223 or the second slider 224 to slide, a clearance groove is provided at the lower end of the second housing 250, allowing the first slider 223 or the second slider 224 to slide within the clearance groove. To prevent dust from entering the second housing 250, the clamping mechanism 200 also includes a dustproof net 240, which is retractable and can block the clearance groove along its extension direction.

[0073] To improve the structural compactness of the clamping mechanism 200 and make full use of the space inside the second housing 250, the clamping mechanism 200 also includes a transmission assembly 230. The transmission assembly 230 is disposed inside the second housing 250. The input end of the transmission assembly 230 is connected to the output end of the drive member 221, and the output end of the transmission assembly 230 is connected to the lead screw 222. The transmission assembly 230 is configured to change the transmission direction of the drive member 221.

[0074] Specifically, such as Figure 7 and Figure 8As shown, the transmission assembly 230 includes a first gear 231, a second gear 232, and a third gear 233. The first gear 231 is coaxially fixed to the output end of the drive member 221. The second gear 232 is rotatably connected to the second housing 250 and meshes with the first gear 231. The third gear 233 is coaxially fixed to the lead screw 222 and meshes with the second gear 232. Through the sequential meshing of the first gear 231, the second gear 232, and the third gear 233, the output end of the drive member 221 is coaxially fixed to the first gear 231, and the lead screw 222 is meshed and fixed to the third gear 233, thus enabling a change in the driving direction of the drive member 221. It should be noted that in this embodiment, the second gear 232 is rotatably connected to the mating shaft 251 within the second housing 250 to improve the structural strength of the transmission assembly 230.

[0075] In addition, to reduce the rotational frictional resistance between the second gear 232 and the mating shaft 251, the transmission assembly 230 also includes a bearing 234, which is sandwiched between the second gear 232 and the mating shaft 251.

[0076] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. Weighing device, characterized in that include: The weighing mechanism (100) has a weighing sensor (110) and a limiting structure inside, the limiting structure being configured to limit the deformation of the weighing sensor (110); A clamping mechanism (200) is suspended below the weighing sensor (110), the clamping mechanism (200) is configured to clamp a workpiece, and the weighing sensor (110) is configured to weigh the workpiece and the clamping mechanism (200); as well as A connecting flange (300) is provided, one end face of which is connected to the weighing sensor (110), and the other end of which is fixedly connected to the end face of the clamping mechanism (200).

2. Weighing apparatus according to claim 1, characterized in that Also includes: The conveying mechanism is connected to the weighing mechanism (100), and the conveying mechanism can drive the weighing mechanism (100) to move arbitrarily in space.

3. Weighing apparatus according to claim 2, characterized in that The weighing mechanism (100) includes: The first housing (120) is fixedly connected to the conveying mechanism; The weighing sensor (110) and the limiting structure are both fixed inside the first housing (120); and An adapter (130) is sandwiched between the connecting flange (300) and the load cell (110).

4. Weighing apparatus according to claim 3, characterized in that The limiting structure includes: A first limiting structure (140) is fixedly connected to the first housing (120), and the first limiting structure (140) is configured to limit the downward movement of the adapter (130) to an extreme position; and The second limiting structure (150) is fixedly connected to the first housing (120), and the second limiting structure (150) is configured to limit the upward movement of the adapter (130) to the extreme position.

5. Weighing apparatus according to claim 4, characterized in that The first limiting structure (140) includes: Connector (142), fixedly connected to the first housing (120); and A limiting plate (141) is fixedly connected to the connecting member (142), the limiting plate (141) is located below the adapter (130), and the limiting plate (141) is configured to abut against the adapter (130).

6. Weighing apparatus according to claim 3, characterized in that The weighing mechanism (100) further includes: A locking member (190) is capable of being fixedly connected to both the first housing (120) and the adapter (130) simultaneously.

7. The weighing apparatus of claim 1 wherein, The clamping mechanism (200) includes: The second housing (250) has the connecting flange (300) fixed to the end face of the second housing (250) facing the weighing mechanism (100); The drive assembly (220) is fixed inside the second housing (250); Two grippers (210) arranged opposite each other in the horizontal direction form a clamping space for clamping the workpiece between the two grippers (210) arranged opposite each other in the horizontal direction; The output end of the drive component (220) is connected to two grippers (210) arranged opposite each other in the horizontal direction. The drive component (220) can drive the two grippers (210) arranged opposite each other in the horizontal direction to move towards each other or away from each other.

8. Weighing apparatus according to claim 7, characterized in that The drive component (220) includes: The drive unit (221) is fixed inside the second housing (250); A lead screw (222) extends horizontally and is connected to the output end of a drive member (221). The drive member (221) can drive the lead screw (222) to rotate about the axis of the lead screw (222). A first slider (223) and a second slider (224) are respectively sleeved on the outer periphery of the lead screw (222). The first slider (223) and the second slider (224) are respectively fixed with a jaw (210). Either the first slider (223) or the second slider (224) is threadedly engaged with the lead screw (222), and the other one is fixedly connected to the second housing (250) and the lead screw (222) does not contact each other.

9. Weighing apparatus according to claim 8, characterized in that The clamping mechanism (200) further includes: A transmission assembly (230) is disposed inside the second housing (250). The input end of the transmission assembly (230) is connected to the output end of the drive member (221), and the output end of the transmission assembly (230) is connected to the lead screw (222). The transmission assembly (230) is configured to change the transmission direction of the drive member (221).

10. The weighing apparatus of claim 1, wherein, At least one layer of elastic buffer pad is provided between the connecting flange (300) and the clamping mechanism (200).

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