A clamping mechanism and a robotic arm for weight calibration

Abstract

This utility model relates to the field of weight calibration technology, and in particular to a clamping mechanism and a robotic arm for weight calibration, a support component, a support component for connecting the robotic arm and providing support for the entire clamping mechanism, the support component including a U-shaped frame with a through hole at the top of the U-shaped frame; and a clamping component disposed at the bottom of the support component, the clamping component including a drive rod disposed inside the U-shaped frame, the clamping component for clamping the weight, clamping the weight in the calibration weight and moving it together with the robotic arm to transfer the weight; and a protective component disposed above the clamping component, which protects the structure in the clamping component that is in contact with the weight after calibration.

Description

Technical Field

[0001] This utility model relates to the field of weight verification technology, and in particular to a clamping mechanism and a robotic arm for weight verification. Background Technology

[0002] Weights are an indispensable part of quality control, as their mass directly affects the accuracy and reliability of measuring instruments. Therefore, weights need to be verified and calibrated regularly to ensure they meet specified requirements. Traditional weight verification methods mainly rely on manual operation, where an operator holds the weight and weighs it on a precision electronic balance. However, manual operation is prone to errors, such as airflow interference, positional errors, recording mistakes, and visual biases. Furthermore, manual operation poses equipment safety hazards: some weights are large or irregularly shaped, and handling them by hand may cause damage or drop.

[0003] Therefore, existing technologies have introduced robotic arms to replace manual labor in the transfer and calibration of weights. Since the weights are tools used for the calibration of high-precision weighing instruments, daily corrosion prevention is required. The clamping structure on the robotic arm that comes into contact with the weights also needs to be protected against corrosion. Ideally, the clamping structure should be protected and isolated from the external environment after calibration to reduce the risk of corrosion. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the fact that the existing robotic arm cannot effectively protect the clamping structure after calibration, this utility model is proposed.

[0006] The purpose of this invention is to provide a clamping mechanism, which aims to provide a clamping structure that can reduce the risk of corrosion.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a clamping mechanism, comprising: a support component, the support component including a U-shaped frame, the top of the U-shaped frame having a through hole; and,

[0008] A clamping member disposed at the bottom of the support member, the clamping member including a drive rod disposed inside the U-shaped frame; and,

[0009] A protective member disposed above the clamping member.

[0010] In a preferred embodiment of the clamping mechanism of this utility model, a sliding rod is provided at the bottom of the U-shaped frame.

[0011] In a preferred embodiment of the clamping mechanism of this utility model, the driving rod is sleeved inside the through hole, and connecting plates are provided on both sides of the bottom of the driving rod. A rocker arm is provided on the side of the connecting plate, and a gripper structure is provided below the rocker arm.

[0012] In a preferred embodiment of the clamping mechanism of this utility model, the gripper structure includes a sliding rod, an intermediate shaft is provided on the side of the sliding rod, and a collar is provided on the side of the intermediate shaft.

[0013] In a preferred embodiment of the clamping mechanism of this utility model, the end of the rocker arm away from the connecting plate is sleeved on the outer wall of the intermediate shaft, and the collar is sleeved on the outer wall of the slide rod.

[0014] In a preferred embodiment of the clamping mechanism of this utility model, a clamping plate is provided at the bottom of the sliding rod, and a contact plate is provided on the side of the clamping plate.

[0015] In a preferred embodiment of the clamping mechanism of this utility model, the protective component includes a connecting rod disposed on the side of the driving rod, a protective plate disposed at the end of the connecting rod away from the driving rod, protective grooves being provided on both sides of the protective plate, and a protective pad being disposed inside the protective groove.

[0016] In a preferred embodiment of the clamping mechanism of this utility model, the protective pad is made of elastic material.

[0017] The beneficial effects of the clamping mechanism of this utility model are as follows: the upward and downward movement of the drive rod can adjust the distance between the contact plates and adjust the clamping size, enabling the clamping of weights of various sizes. At the same time, after the weights have been calibrated, the drive rod can drive the contact plates to embed into the protective pads to prevent corrosion of the contact plates by the external environment.

[0018] Another objective of this invention is to provide a robotic arm for weight verification, which aims to solve the problem.

[0019] To solve the above-mentioned technical problems, the present invention also provides the following technical solution: a robotic arm for weight verification, which includes a clamping mechanism; and a robotic arm assembly, the robotic arm assembly including a rotating spindle, a telescopic arm provided on the top of the rotating spindle, and a clamping arm provided on the side of the telescopic arm.

[0020] In a preferred embodiment of the robotic arm for weight verification according to this utility model, the bottom of the clamping arm is provided with a telescopic rod, and the bottom of the telescopic rod is connected to the drive rod.

[0021] The beneficial effects of the robotic arm for weight verification of this utility model are: the robotic arm assembly can drive the clamping mechanism to move to a designated position, and then the telescopic rod drives the drive rod to rise or fall to clamp or release the weight. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0024] Figure 2 This is a structural schematic diagram of the support component in this utility model.

[0025] Figure 3 This is a schematic diagram of the clamping component in this utility model.

[0026] Figure 4 This is a schematic diagram of the gripper structure in this utility model.

[0027] Figure 5 This is a schematic diagram of the protective component in this utility model. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0031] Example 1, referring to Figures 1-5This is the first embodiment of the present invention, which provides a clamping mechanism, including: a support member 1, which is used to connect a robotic arm and provide support for the entire clamping mechanism, such as... Figure 2 As shown, the support component 1 includes a U-shaped frame 11, the top of which has a through hole 12; and,

[0032] A clamping member 2 is disposed at the bottom of the support member 1. The clamping member 2 includes a drive rod 21 disposed inside the U-shaped frame 11. The clamping member 2 is used to clamp the weight, holding it in place among the calibration weights and moving it together with the robotic arm to transfer the weight; and,

[0033] The protective member 3, located above the clamping member 2, protects the structure in the clamping member 2 that is in contact with the weight after the calibration is completed.

[0034] Furthermore, the clamping component 2 includes a drive rod 21, which is sleeved inside the through hole 12. Connecting plates 22 are provided on both sides of the bottom of the drive rod 21, and rocker arms 23 are provided on the sides of the connecting plates 22. Figure 3 As shown, the drive rod 21 can slide up and down above the U-shaped frame 11. Preferably, the connecting plate 22 has shafts at both ends, and the rocker arm 23 is sleeved on the shafts at both ends of the connecting plate 22. The rocker arm 23 can rotate around the two ends of the connecting plate 22. A gripper structure 24 is provided below the rocker arm 23 of the connecting plate 22.

[0035] Furthermore, the gripper structure 24 includes a sliding rod 241, an intermediate shaft 242 is provided on the side of the sliding rod 241, and a collar 243 is provided on the side of the intermediate shaft 242. Preferably, the sliding rod 241 and the intermediate shaft 242 are fixedly connected, and the intermediate shaft 242 and the collar 243 are fixedly connected, such as... Figure 4 As shown, a sliding rod 13 is provided at the bottom of the U-shaped frame 11. The end of the rocker arm 23 away from the connecting plate 22 is sleeved on the outer wall of the intermediate shaft 242. This end of the rocker arm 23 can rotate around the intermediate shaft 242. A collar 243 is sleeved on the outer wall of the sliding rod 13. The inner wall of the collar 243 has a groove that mates with the sliding rod 13, allowing the collar 243 to slide on the outer wall of the sliding rod 13. A clamping plate 244 is provided at the bottom of the sliding rod 241. A contact plate 245 is provided on the side of the clamping plate 244. Preferably, the contact plate 245 and the clamping plate 244 are detachable, making it easier to replace the contact plate 245 if it is damaged or corroded. Figure 3As shown, when the drive rod 21 rises, it causes the connecting plate 22 to rise. The upper end of the rocker arm 23 rises along with the connecting plate 22, so the lower ends of the rocker arms 23 at both ends of the connecting plate 22 will move closer to each other. As a result, the sliding rods 241 move closer to each other, the distance between the clamping plates 244 decreases, and the contact plate 245 clamps the weight. At this time, the weight can be clamped. When it is necessary to put down the weight, the drive rod 21 descends, causing the connecting plate 22 to descend. The connecting plate 22 will push the rocker arm 23 down, and the rocker arm 23 will rotate. At this time, the sliding rods 241 will move away from each other, the distance between the two clamping plates 244 will increase, and the contact plate 245 will no longer clamp the weight.

[0036] Usage process: When it is necessary to clamp the weight, the drive rod 21 rises and drives the connecting plate 22 to rise, which in turn drives the rocker arm 23 to rotate, causing the sliding rods 241 to move closer together so that the contact plate 245 clamps the weight. At this time, the robotic arm drives the entire clamping mechanism to move to the designated position, the drive rod 21 descends and puts down the weight for verification. After the verification is completed, the robotic arm drives the clamping mechanism to clamp the weight and move it to the place where the weight is stored. Then the protective component 3 will protect the contact plate 245 in the clamping component 2.

[0037] Example 2, refer to Figures 1-5 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a specific structure for the protective member 3, specifically explaining how the protective member 3 provides protection for the clamping member 2. The protective member 3 includes a connecting rod 31 disposed on the side of the drive rod 21, such as... Figure 5As shown, the side of the connecting rod 31 is fixedly connected to the drive rod 21. A protective plate 32 is provided at the end of the connecting rod 31 furthest from the drive rod 21. The connecting rod 31 ensures that the protective plate 32 is roughly aligned vertically with the clamping plate 244 and the contact plate 245. Protective grooves 33 are provided on both sides of the protective plate 32, and protective pads 34 are provided inside the protective grooves 33. The protective pads 34 are made of elastic material; preferably, they can be rubber pads. The protective pads 34 and the protective grooves 33 are detachable, allowing for easy removal for maintenance. When the calibration is complete, the drive rod 21 can continue to descend, causing the protective plate 32 to descend as well. Simultaneously, the drive rod 21 will rotate the rocker arm 23, further increasing the distance between the clamping plates 244. When the rocker arm 23 rotates to be parallel with the slide rod 13, the distance between the clamping plates 244 is at its maximum. As the drive rod 21 continues to descend, the distance between the clamping plates 244 decreases, and the two contact plates 245 move closer to each other. The guard plate 32 also continues to descend. When the protective groove 33 on the guard plate 32 descends to be flush with the contact plate 245, the contact plate 245 moves into the protective groove 33 and comes into contact with the protective pad 34. The contact plate 245 is completely embedded in the protective pad 34, isolating itself from the external environment and preventing corrosion of the contact plate 245. When it is necessary to clamp the weight, the drive rod 21 rises and drives the contact plate 245 to disengage from the protective groove 33. The drive rod 21 continues to rise and drives the contact plates 245 to move closer to each other to clamp the weight.

[0038] Usage process: After the weight is calibrated, the drive rod 21 continues to descend, causing the contact plate 245 to embed into the protective pad 34 to prevent the external environment from corroding the contact plate 245. When the weight needs to be clamped again, the drive rod 21 rises, causing the contact plate 245 to disengage from the protective groove 33. The drive rod 21 continues to rise, causing the contact plates 245 to move closer together and clamp the weight.

[0039] Example 3, referring to Figures 1-5 This is the third embodiment of the present invention, which further provides a robotic arm for weight verification. It includes a clamping mechanism; and a robotic arm assembly 4, which includes a rotating spindle 41 that can rotate vertically. A telescopic arm 42 is provided at the top of the rotating spindle 41, and the telescopic arm 42 can extend and retract, enabling the robotic arm to drive the clamping mechanism to a designated position to clamp and release the weight. A clamping arm 43 is provided on the side of the telescopic arm 42. Figure 1 As shown, the bottom of the clamping arm 43 is fixedly connected to the U-shaped frame 11 to position the support component 1. The movement of the clamping arm 43 will drive the clamping mechanism to move to the designated position.

[0040] Furthermore, a telescopic rod 44 is provided at the bottom of the clamping arm 43. The bottom of the telescopic rod 44 is connected to the drive rod 21. When the telescopic rod 44 extends, it will cause the drive rod 21 to descend. When the telescopic rod 44 retracts, it will cause the drive rod 21 to rise.

[0041] Usage process: The robotic arm assembly 4 can drive the clamping mechanism to move to the designated position, and then the telescopic rod 44 drives the drive rod 21 to rise or fall to clamp or release the weight.

[0042] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0043] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0044] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A clamping mechanism, characterized in that: include, A support component (1), the support component (1) including a U-shaped frame (11), the top of the U-shaped frame (11) having a through hole (12); and, A clamping member (2) is disposed at the bottom of the support member (1), the clamping member (2) including a drive rod (21) disposed inside the U-shaped frame (11); and, A protective member (3) is disposed above the clamping member (2).

2. The clamping mechanism as described in claim 1, characterized in that: The bottom of the U-shaped frame (11) is provided with a sliding rod (13).

3. The clamping mechanism as described in claim 2, characterized in that: The drive rod (21) is sleeved inside the through hole (12). Connecting plates (22) are provided on both sides of the bottom of the drive rod (21). A rocker arm (23) is provided on the side of the connecting plate (22). A gripper structure (24) is provided below the rocker arm (23).

4. The clamping mechanism as described in claim 3, characterized in that: The gripper structure (24) includes a sliding rod (241), an intermediate shaft (242) is provided on the side of the sliding rod (241), and a collar (243) is provided on the side of the intermediate shaft (242).

5. The clamping mechanism as described in claim 4, characterized in that: The rocker arm (23) is sleeved on the outer wall of the intermediate shaft (242) at one end away from the connecting plate (22), and the collar (243) is sleeved on the outer wall of the slide rod (13).

6. The clamping mechanism as described in claim 5, characterized in that: The bottom of the sliding rod (241) is provided with a clamping plate (244), and the side of the clamping plate (244) is provided with a contact plate (245).

7. The clamping mechanism as described in claim 6, characterized in that: The protective component (3) includes a connecting rod (31) disposed on the side of the drive rod (21). A guard plate (32) is disposed at one end of the connecting rod (31) away from the drive rod (21). A protective groove (33) is provided on both sides of the guard plate (32). A protective pad (34) is disposed inside the protective groove (33).

8. The clamping mechanism as described in claim 7, characterized in that: The protective pad (34) is made of elastic material.

9. A robotic arm for weight verification, characterized in that: The invention includes the clamping mechanism according to any one of claims 1 to 8; and a robotic arm assembly (4), the robotic arm assembly (4) including a rotating spindle (41), a telescopic arm (42) provided on the top of the rotating spindle (41), and a clamping arm (43) provided on the side of the telescopic arm (42).

10. The robotic arm for weight verification as described in claim 9, characterized in that: The bottom of the clamping arm (43) is provided with a telescopic rod (44), and the bottom of the telescopic rod (44) is connected to the drive rod (21).

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