A device for detecting the accuracy of weight weighing

Abstract

This utility model relates to the field of testing equipment technology and discloses a device for testing the weighing accuracy of weights. It includes a transport group, a testing group, a gripping group, a conveying group, and multiple weights. The testing group has a storage compartment at its bottom to collect weights that fail the test. The transport group includes a conveyor belt, the gripping group includes two simultaneously moving robotic arms, and the conveying group includes a conveyor belt and a conveyor chute. The robotic arms transport qualified weights onto the conveyor belt and then transport them via the conveyor chute. This utility model solves the problem of traditional testing equipment, which requires multiple programs for the robotic arms and two separate transport channels to separate qualified and unqualified weights after weighing accuracy testing, making the weight classification process complex.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically a testing device for the accuracy of weight weighing. Background Technology

[0002] Weights are objects used as mass standards on a balance scale. They are usually metal blocks or sheets, used to measure mass with relatively high precision. Placed on one end of the balance scale as a mass standard, they vary in size and each has a specific mass. They are physical measuring instruments with a given mass and specified shape, used for calibrating weighing instruments and for measurement on them. Weights must be used in conjunction with a balance scale to determine the mass of other objects; therefore, they are a subordinate physical measuring instrument. The accuracy of weights is usually tested by a robotic arm placing them onto a testing device. After the testing device verifies the accuracy, the robotic arm places the weights onto a corresponding conveyor belt for transport. To classify qualified and unqualified weights, the robotic arm needs to be programmed with multiple steps, and two corresponding transport channels are required to separately grasp and transport qualified and unqualified weights, making the weight classification process complex. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0004] A weight weighing accuracy testing device includes a transport group, a testing group, a gripping group, a conveying group, and multiple weights. The bottom of the testing group is provided with a storage compartment for storing weights that fail the test.

[0005] The transport assembly includes a transport belt, on which the weights are placed;

[0006] The gripping group includes two robotic arms that move simultaneously. One robotic arm grips the weights on the conveyor belt and moves them to the inspection group, while the other robotic arm transports the qualified weights to the conveying group.

[0007] The conveying assembly includes a conveyor belt and a conveyor chute. The robotic arm transports qualified weights onto the conveyor belt and then moves the weights along the conveyor chute.

[0008] Preferably, the transport assembly further includes a transport platform, on which two transport rollers are rotatably connected via bearings, the transport belt is fitted onto the transport rollers, and a first motor is fixedly connected to the transport platform, with the output end of the first motor fixedly connected to one of the transport rollers.

[0009] Preferably, the detection group includes a detection platform with a drop opening. A bearing truncated cone is rotatably mounted inside the drop opening via a bearing. Weight sensors are fixedly connected to both sides of the bearing truncated cone. A second motor is fixedly connected to one side of the detection platform, and a connecting rod is fixedly connected to one side of the bearing truncated cone. The output end of the second motor is fixedly connected to one end of the connecting rod. The second motor is signal-connected to the weight sensors. The storage compartment is located at the bottom of the detection platform and directly below the drop opening.

[0010] Preferably, a load-bearing platform is fixedly connected to one side of the testing platform, a first cylinder is fixedly connected to the load-bearing platform, a stop bar is fixedly connected to the output end of the first cylinder, and the stop bar is located at the top of the conveyor belt.

[0011] Preferably, the gripping group further includes a fixed platform, on both sides of which guide rails are fixedly connected. A connecting plate is fixedly connected to one side of the robotic arm, and a fixed rod is fixedly connected between the two connecting plates. A slide is fixedly connected to the bottom of the connecting plate, and the slide is slidably mounted on the guide rails. A slot is provided on the fixed platform. A vertical plate is fixedly connected to the bottom of the connecting plate on the side of the robotic arm located above the transport group. The vertical plate is slidably mounted in the slot. A second cylinder is fixedly connected to the bottom of the fixed platform. The output end of the second cylinder is fixedly connected to the vertical plate, and the second cylinder is signal-connected to a weight sensor.

[0012] Preferably, the robotic arm includes two robotic claws. A rectangular compartment is fixedly connected to one side of the connecting plate. A vertical rod is fixedly connected to the top of the robotic claw. A horizontal toothed plate is fixedly connected to one side of the vertical rod. The horizontal toothed plates of the two robotic claws are located at the top and bottom of the rectangular compartment and are staggered. A gear is rotatably connected to the rectangular compartment through a bearing. The gear is located between the two horizontal toothed plates and meshes with them to enable the two robotic claws to move relative to each other. A third cylinder is fixedly connected to one side of the rectangular compartment, and the output end of the third cylinder is fixedly connected to one of the vertical rods.

[0013] Preferably, the conveying assembly further includes a conveying platform, an inclined plate is fixedly connected to one side of the conveying platform, two horizontal plates are fixedly connected to the inclined plate, two conveying rollers are rotatably connected between the two horizontal plates through bearings, the conveyor belt is sleeved on the two conveying rollers, a third motor is fixedly connected to the horizontal plate, the output end of the third motor is fixedly connected to one end of one of the conveying rollers, and the conveying slide is fixedly installed on the conveying platform, with the top end of the conveying slide close to the conveyor belt.

[0014] Compared with the prior art, this utility model provides a device for detecting the accuracy of weight weighing, which has the following beneficial effects:

[0015] 1. A weight weighing accuracy testing device, comprising a storage bin at the bottom of the testing group and a conveyor group on one side of the testing group, for classifying and placing the tested weights. When the testing group detects that the weight weighing accuracy is qualified, the robotic arm of the gripping group picks up the qualified weights and transports them to the conveyor group, where they are stored via a conveyor slide on one side. When the weight weighing accuracy is unqualified, the testing group directly transports the unqualified weights to the storage bin, thereby quickly storing and classifying the weights. This solves the problem of complex operation in traditional testing equipment, which requires multiple programs for the robotic arm and two corresponding transport channels to pick up and transport qualified and unqualified weights separately after weighing accuracy is tested. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the robotic arm structure of this utility model;

[0018] Figure 3 For the present utility model Figure 2 Schematic diagram of the structure of section A;

[0019] Figure 4 This is a schematic diagram of the gripping assembly structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the detection group structure of this utility model;

[0021] Figure 6 For the present utility model Figure 5 Schematic diagram of section B in the middle;

[0022] Figure 7 This is a schematic diagram of the conveyor assembly structure of this utility model.

[0023] In the diagram: 1. Transport group; 2. Detection group; 3. Gripping group; 4. Conveying group; 5. Weights; 6. Storage bin; 101. Conveyor belt; 31. Robotic arm; 41. Conveyor belt; 42. Conveyor chute; 102. Transport platform; 103. Transport roller; 104. First motor; 21. Detection platform; 22. Drop outlet; 23. Supporting frustum; 24. Weight sensor; 25. Second motor; 26. Connecting rod; 27. Load-bearing platform; 28. 1. First cylinder; 29. ​​Stop bar; 31. Fixed platform; 32. Guide rail; 33. Connecting plate; 34. Fixed rod; 35. Slide table; 36. Hole and slot; 37. Vertical plate; 38. Second cylinder; 311. Mechanical claw; 312. Rectangular bin; 313. Vertical rod; 314. Horizontal toothed plate; 315. Gear; 316. Third cylinder; 41. Conveying platform; 42. Inclined plate; 43. Horizontal plate; 44. Conveying roller; 45. Third motor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes a weight weighing accuracy detection device.

[0026] Please see Figures 1-7 A weight weighing accuracy testing device includes a transport group 1, a testing group 2, a gripping group 3, a conveying group 4, and multiple weights 5. The bottom of the testing group 2 is provided with a storage compartment 6 to store weights 5 that fail the test.

[0027] Transport group 1 includes a transport belt 101, and multiple weights 5 are placed on the transport belt 101;

[0028] The gripping group 3 includes two robotic arms 31 that move simultaneously. One robotic arm 31 grips the weight 5 on the conveyor belt 101 and moves it to the detection group 2, while the other robotic arm 31 transports the qualified weight 5 to the conveying group 4.

[0029] The conveyor assembly 4 includes a conveyor belt 41 and a conveyor slide 42. The robot arm 31 transports the qualified weights 5 onto the conveyor belt 41 and then transports the weights 5 through the conveyor slide 42.

[0030] Specifically, multiple weights 5 are placed on the conveyor belt 101. The conveyor group 1 transports the weights 5 to the vicinity of the detection group 2. Then, the robotic arm 31 in the gripping group 3, which is close to the conveyor group 1, grips the weights 5 and transports them to the detection group 2. The detection group 2 tests the weights 5. When the weighing accuracy of the weights 5 is not up to standard, the detection group 2 directly transports the unqualified weights 5 to the storage bin 6. When the weighing accuracy of the weights 5 is up to standard, the robotic arm 31 in the gripping group 3, which is close to the conveyor group 4, transports the qualified weights 5 to the conveyor belt 41 and then to the conveyor slide 42. The qualified weights 5 are then transported and stored through the conveyor slide 42.

[0031] By setting up a storage bin 6 at the bottom of the detection group 2 and a conveyor group 4 on one side of the detection group 2, the tested weights 5 are classified and placed. When the detection group 2 detects that the weighing accuracy of the weights 5 is qualified, the robotic arm 31 of the gripping group 3 picks up the qualified weights 5 and transports them to the conveyor group 4. The qualified weights 5 are stored through the conveyor slide 42 on one side of the conveyor group 4. When the weighing accuracy of the weights 5 detected by the detection group 2 is unqualified, the detection group 2 directly transports the unqualified weights 5 to the storage bin 6. This allows for the rapid storage and classification of unqualified weights 5, solving the problem that traditional detection equipment requires setting multiple programs for the robotic arm and two corresponding transport channels to pick up and transport qualified and unqualified weights 5 after testing the weighing accuracy of the weights 5, resulting in a complicated weight classification process.

[0032] Specifically, the transport group 1 also includes a transport platform 102, on which two transport rollers 103 are rotatably connected via bearings. A transport belt 101 is fitted onto the transport rollers 103. A first motor 104 is fixedly connected to the transport platform 102, and the output end of the first motor 104 is fixedly connected to one of the transport rollers 103.

[0033] The first motor 104 drives one of the transport rollers 103 to rotate. Through the connection between the transport belt 101 and the two transport rollers 103, the transport belt 101 is driven to rotate, thereby transporting the weight 5 on the transport belt 101 to one side of the detection group 2.

[0034] Specifically, the testing group 2 includes a testing platform 21, on which a drop opening 22 is provided. A bearing truncated cone 23 is rotatably provided in the drop opening 22 via a bearing. Weight sensors 24 are fixedly connected to both sides of the bearing truncated cone 23. A second motor 25 is fixedly connected to one side of the testing platform 21, and a connecting rod 26 is fixedly connected to one side of the bearing truncated cone 23. The output end of the second motor 25 is fixedly connected to one end of the connecting rod 26. The second motor 25 is signal-connected to the weight sensors 24. The storage compartment 6 is located at the bottom of the testing platform 21 and directly below the drop opening 22.

[0035] A load-bearing platform 27 is fixedly connected to one side of the testing platform 21. A first cylinder 28 is fixedly connected to the load-bearing platform 27. A stop bar 29 is fixedly connected to the output end of the first cylinder 28. The stop bar 29 is located at the top of the conveyor belt 101.

[0036] The robotic arm 31, located near the transport group 1, transports the weight 5, which is closest to the detection table 21 on the transport platform 102, onto the detection table 21. The weight 5 is positioned on the supporting truncated cone 23. When the weight 5 fails to meet the weighing accuracy requirements, the weight sensor 24 transmits a signal to the second motor 25. The second motor 25 then rotates, causing the supporting truncated cone 23 to rotate. This causes the weight 5 on the supporting truncated cone 23 to fall through the drop port 22 and be collected in the storage compartment 6. When the weight 5 meets the weighing accuracy requirements, another robotic arm 31 picks up the qualified weight 5 and transports it to the conveyor group 4.

[0037] Specifically, the gripping group 3 also includes a fixed platform 31, with guide rails 32 fixedly connected to both sides of the fixed platform 31. A connecting plate 33 is fixedly connected to one side of the robot arm 31, and a fixed rod 34 is fixedly connected between the two connecting plates 33. A slide table 35 is fixedly connected to the bottom of the connecting plate 33, and the slide table 35 is slidably mounted on the guide rails 32. A slot 36 is provided on the fixed platform 31. A vertical plate 37 is fixedly connected to the bottom of the connecting plate 33 on one side of the robot arm 31 located above the transport group 1. The vertical plate 37 is slidably mounted in the slot 36. A second cylinder 38 is fixedly connected to the bottom of the fixed platform 31. The output end of the second cylinder 38 is fixedly connected to the vertical plate 37, and the second cylinder 38 is signal-connected to the weight sensor 24.

[0038] The robotic arm 31 includes two robotic claws 311. A rectangular compartment 312 is fixedly connected to one side of the connecting plate 33. A vertical rod 313 is fixedly connected to the top of the robotic claw 311. A horizontal toothed plate 314 is fixedly connected to one side of the vertical rod 313. The horizontal toothed plates 314 of the two robotic arms 31 are located at the top and bottom of the rectangular compartment 312 respectively and are staggered. A gear 315 is rotatably connected to the rectangular compartment 312 through a bearing. The gear 315 is located between the two horizontal toothed plates 314 and meshes with the two horizontal toothed plates 314 to make the two robotic claws 311 move relative to each other. A third cylinder 316 is fixedly connected to one side of the rectangular compartment 312. The output end of the third cylinder 316 is fixedly connected to one of the vertical rods 313.

[0039] When the weight 5 is grasped, the second cylinder 38 drives the vertical plate 37 to move towards the transport platform 102, so that the robot arm 31 is positioned on the weight 5 on the transport belt 101, and the two mechanical claws 311 are positioned on both sides of the weight 5. The third cylinder 316 drives one of the vertical rods 313 to move forward, thereby driving one of the transverse toothed plates 314 fixedly connected to the vertical rod 313 to move forward. Through the setting of the two transverse toothed plates 314 at the top and bottom of the outer periphery of the gear 315 respectively, and the meshing connection between the two transverse toothed plates 314 and the gear 315, the two vertical rods 313 are driven to move relative to each other, thereby causing the two mechanical claws 311 to move relative to each other, and thus the two mechanical claws 311 grasp the weight 5. Then the second cylinder drives the vertical plate 37 to move towards the inspection platform 21, thereby transporting the weight 5 onto the inspection platform 21. Similarly, the other mechanical claw 311 transports the qualified weight 5 onto the conveyor belt 41.

[0040] Specifically, the conveying group 4 also includes a conveying platform 41. An inclined plate 42 is fixedly connected to one side of the conveying platform 41. Two horizontal plates 43 are fixedly connected to the inclined plate 42. Two conveying rollers 44 are rotatably connected between the two horizontal plates 43 through bearings. The conveyor belt 41 is sleeved on the two conveying rollers 44. A third motor 45 is fixedly connected to the horizontal plate 43. The output end of the third motor 45 is fixedly connected to one end of one of the conveying rollers 44. The conveying slide 42 is fixedly installed on the conveying platform 41. The top of the conveying slide 42 is close to the conveyor belt 41.

[0041] The third motor 45 drives one of the conveyor rollers 44 to rotate. Through the connection between the conveyor belt 41 and the two conveyor rollers 44, the conveyor belt 41 is driven to rotate, thereby transporting the qualified weight 5 to the transport slide. The qualified weight 5 is then transported and stored through the transport slide.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the accuracy of a weight scale, comprising a transport group (1), a detection group (2), a gripping group (3), a conveying group (4) and a plurality of weights (5), characterized in that: The bottom of the testing group (2) is equipped with a storage compartment (6) for storing the weights (5) that fail the test. The transport assembly (1) includes a transport belt (101) on which a plurality of the weights (5) are placed; The gripping group (3) includes two robotic arms (31) that move simultaneously. One of the robotic arms (31) grips the weights (5) on the conveyor belt (101) and moves them to the detection group (2). The other robotic arm (31) transports the qualified weights (5) to the conveying group (4). The conveying assembly (4) includes a conveyor belt (41) and a conveyor slide (42). The robotic arm (31) transports the qualified weights (5) onto the conveyor belt (41) and transports the weights (5) through the conveyor slide (42).

2. The apparatus for detecting the weighing accuracy of a weight according to claim 1, characterized in that: The transport group (1) also includes a transport platform (102), on which two transport rollers (103) are rotatably connected via bearings. The transport belt (101) is fitted onto the transport rollers (103). A first motor (104) is fixedly connected to the transport platform (102), and the output end of the first motor (104) is fixedly connected to one of the transport rollers (103).

3. The apparatus for detecting the weighing accuracy of a weight according to claim 2, characterized in that: The detection group (2) includes a detection platform (21), on which a drop opening (22) is provided. A bearing truncated cone (23) is rotatably provided in the drop opening (22) through a bearing. Weight sensors (24) are fixedly connected to both sides of the bearing truncated cone (23). A second motor (25) is fixedly connected to one side of the detection platform (21). A connecting rod (26) is fixedly connected to one side of the bearing truncated cone (23). The output end of the second motor (25) is fixedly connected to one end of the connecting rod (26). The second motor (25) is signal-connected to the weight sensor (24). The storage compartment (6) is located at the bottom of the detection platform (21) and directly below the drop opening (22).

4. The apparatus for detecting the weighing accuracy of a weight according to claim 3, characterized in that: A load-bearing platform (27) is fixedly connected to one side of the testing platform (21). A first cylinder (28) is fixedly connected to the load-bearing platform (27). A stop bar (29) is fixedly connected to the output end of the first cylinder (28). The stop bar (29) is located at the top of the conveyor belt (101).

5. The apparatus for detecting the weighing accuracy of a weight according to claim 4, characterized in that: The gripping group (3) also includes a fixed platform (31). Guide rails (32) are fixedly connected to both sides of the fixed platform (31). A connecting plate (33) is fixedly connected to one side of the manipulator (31). A fixed rod (34) is fixedly connected between the two connecting plates (33). A slide (35) is fixedly connected to the bottom of the connecting plate (33). The slide (35) is slidably mounted on the guide rail (32). A slot (36) is provided on the fixed platform (31). A vertical plate (37) is fixedly connected to the bottom of the connecting plate (33) on the side of the manipulator (31) above the transport group (1). The vertical plate (37) is slidably mounted in the slot (36). A second cylinder (38) is fixedly connected to the bottom of the fixed platform (31). The output end of the second cylinder (38) is fixedly connected to the vertical plate (37). The second cylinder (38) is signal-connected to the weight sensor (24).

6. The weight weighing accuracy detection device according to claim 5, characterized in that: The robotic arm (31) includes two robotic claws (311). A rectangular chamber (312) is fixedly connected to one side of the connecting plate (33). A vertical rod (313) is fixedly connected to the top of the robotic claw (311). A horizontal toothed plate (314) is fixedly connected to one side of the vertical rod (313). The horizontal toothed plates (314) of the two robotic arms (31) are located at the top and bottom of the rectangular chamber (312) and are staggered. A gear (315) is rotatably connected to the rectangular chamber (312) through a bearing. The gear (315) is located between the two horizontal toothed plates (314) and meshes with the two horizontal toothed plates (314) to make the two robotic claws (311) move relative to each other. A third cylinder (316) is fixedly connected to one side of the rectangular chamber (312). The output end of the third cylinder (316) is fixedly connected to one of the vertical rods (313).

7. The apparatus for detecting the weighing accuracy of a weight according to claim 6, characterized in that: The conveying assembly (4) also includes a conveying platform (41). An inclined plate (42) is fixedly connected to one side of the conveying platform (41). Two horizontal plates (43) are fixedly connected to the inclined plate (42). Two conveying rollers (44) are rotatably connected between the two horizontal plates (43) through bearings. The conveyor belt (41) is sleeved on the two conveying rollers (44). A third motor (45) is fixedly connected to the horizontal plate (43). The output end of the third motor (45) is fixedly connected to one end of one of the conveying rollers (44). The conveying slide (42) is fixedly installed on the conveying platform (41). The top of the conveying slide (42) is close to the conveyor belt (41).

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