Weighing apparatus verification mechanism suitable for weights of different specifications

Abstract

The utility model relates to the technical field of weighing apparatus verification, and provides a weighing apparatus verification mechanism suitable for weights of different specifications, which comprises a detection table and a weighing apparatus body fixedly mounted at the top of the detection table, two placement plates are fixedly mounted at the top of the detection table, and a plurality of weight grooves of different specifications are sequentially formed in the tops of the two placement plates from front to back. The two lifting assemblies are symmetrically and fixedly installed on the top of the detection table, the front-back adjusting assembly is driven by the electric sliding rail to move to the position above the containing plate, then the front-back adjusting assembly drives the installation frame to move back and forth to a weight to be grabbed, and finally the mechanical clamping jaw is driven by the telescopic air cylinder to ascend and descend. And under the cooperation of the electric sliding rail and the front-back adjusting assembly, the mechanical clamping jaw can grab the weights to the weighing apparatus body for detection, so that time and labor are saved, and the situations that the weights fall off or collide with other objects, are abraded and scratched due to the fact that the weights are manually taken can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing instrument verification, in particular to a weighing instrument verification mechanism suitable for weights of different specifications. Background Art

[0002] Scales are extremely common weighing and measuring instruments worldwide. Scale calibration is the process of maintaining scale accuracy by comparing measurement results with reference materials, ensuring a stable environment, using standard equipment, assessing uncertainty, recording detailed data, and performing regular calibrations. Compliance certification ensures accuracy meets specified standards, safeguarding the reliability and trust of precise measurements in commerce, industry, and science. Calibration of weights is a crucial step in this process.

[0003] Known Chinese public authorized utility model CN220960299U discloses a weighing instrument calibration mechanism suitable for weights of different specifications, including a base plate and a mass detector. The mass detector is connected to the base plate, a detection platform of the mass detector is connected to the front side of the base plate, a digital display of the mass detector is connected near the detection platform, a lifting and closing structure is connected to the outside of the detection platform, a controller is connected to the detection platform, and a placement area A and a placement area B are respectively provided on the base plate and on both sides of the detection platform. An electronic recording structure is slidingly provided within the base plate, and an infrared sensor probe is connected to the base plate and near the detection platform. The advantages of this utility model are: preventing accidental weight removal, minimizing the impact of dirt on the equipment on the weight calibration results, and wide applicability.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned scheme has the following problems: when the existing technology is used, personnel need to place the weights on the test table by hand, which is time-consuming and labor-intensive, and is prone to weights falling off or colliding with other objects, being worn and scratched due to the shaking of the personnel's hands during the placement process. Secondly, the existing technology is not able to clean the surface of the sealed box during use. Since the sealed box is exposed to the air, dust particles in the air will quickly adhere to it, which will affect the personnel's observation of the weighing numbers on the digital display screen. Utility Model Content

[0005] The utility model provides a weighing instrument calibration mechanism suitable for weights of different specifications, which solves the problem in the related art that personnel need to place the weights on the testing table by hand, which is time-consuming and labor-intensive, and is also prone to weights falling off or colliding with other objects, being worn and scratched due to hand shaking during the placement process. In addition, the surface of the sealing box cannot be cleaned, so dust particles in the air will quickly adhere to it, which will affect the personnel's observation of the weighing numbers on the digital display screen.

[0006] The technical solution of the utility model is as follows: a weighing instrument calibration mechanism suitable for weights of different specifications, comprising a testing platform and a weighing instrument body fixedly mounted on the top of the testing platform, two placement plates fixedly mounted on the top of the testing platform, and a plurality of weight slots of different specifications are sequentially opened on the tops of the two placement plates from front to back;

[0007] Two lifting assemblies are symmetrically fixedly installed on the top of the testing platform, and an acrylic transparent cover is fixedly installed on the two lifting assemblies;

[0008] A mechanical gripper for grabbing the weight is provided inside the acrylic transparent cover;

[0009] An electric slide rail is fixedly mounted on the inner top wall of the acrylic transparent cover, and the electric slide rail is slidably connected to a front-rear adjustment assembly via a slider. A mounting bracket is fixedly mounted on the bottom of the front-rear adjustment assembly, and a cylinder is fixedly mounted on the inner bottom wall of the mounting bracket, and an output end of the cylinder passes through a side wall of the mounting bracket and is connected to the mechanical gripper.

[0010] A cleaning component is provided on the outer side wall of the detection platform, and the acrylic transparent cover is located on the inner side of the cleaning component.

[0011] Through the above technical solution, the weights in the weight slot can be automatically grabbed, which saves time and effort, and can avoid the weights falling off due to manual weight removal, or collision, wear and scratches with other objects. At the same time, the dust adsorbed on the outer surface of the acrylic transparent cover can be cleaned, thereby preventing the outer surface of the acrylic transparent cover from being affected by dust and stains on the weighing numbers on the digital display screen.

[0012] Preferably, the cleaning assembly includes two fixed plates, and the two fixed plates are fixedly installed on both sides of the detection table respectively, a fixed frame is provided in the middle of the two fixed plates, and sponges are fixedly installed on the four walls inside the fixed frame.

[0013] Through the above technical solution, the acrylic transparent cover can be cleaned during lifting, effectively preventing the outer surface of the acrylic transparent cover from being affected by dust and stains on the weighing numbers on the digital display screen.

[0014] Preferably, a progress frame is fixedly installed on both sides of the fixed frame, and the two progress frames are threadedly connected with hand screws, and the top ends of the two fixed plates are respectively plugged into the two progress frames, and the screw ends of the hand screws are in contact with the fixed plates.

[0015] Through the above technical solution, the fixing plates can be disassembled, thereby facilitating the cleaning or replacement of sponges that have been used for a long time.

[0016] Preferably, the lifting assembly includes a first U-shaped frame fixedly mounted on the top of the detection platform, a driving push rod is fixedly mounted on the inner bottom wall of the first U-shaped frame, a second U-shaped frame is fixedly connected to the top of the driving push rod, and the second U-shaped frame is fixedly mounted on the inner top wall of the acrylic transparent cover.

[0017] Through the above technical solution, the acrylic transparent cover can be easily driven to rise and fall, thereby facilitating the removal and replacement of the weights that have been tested in the weight slot, and at the same time, the cleaning component can clean the surface of the acrylic transparent cover.

[0018] Preferably, strip plates are fixedly mounted on both sides of the first U-shaped frame, strip grooves are provided on both sides of the second U-shaped frame, and the strip plates are plugged into the strip grooves.

[0019] Through the above technical solution, the stability of the push rod, the second U-shaped frame and the acrylic transparent cover during lifting can be effectively avoided.

[0020] Preferably, the front-rear adjustment assembly includes a third U-shaped frame slidably connected to the electric slide rail via a slider, the inner wall of the third U-shaped frame is respectively provided with a threaded rod and a limit rod, and both ends of the threaded rod and the limit rod are connected to the third U-shaped frame, and the threaded rod and the third U-shaped frame are rotatably connected;

[0021] A fixing block is commonly provided on the outer side wall of the threaded rod and the limiting rod, and the fixing block is threadedly connected to the threaded rod. The mounting bracket is fixedly installed on the bottom of the fixing block. A motor is fixedly installed on one side of the third U-shaped bracket through the fixing bracket, and the output end of the motor is fixedly connected to the threaded rod.

[0022] The above technical solution facilitates the mechanical gripper to move back and forth, thereby facilitating the mechanical gripper to grab weights in weight slots of different specifications.

[0023] Preferably, two linear guide rails are fixedly mounted on the inner top wall of the acrylic transparent cover, and the two linear guide rails are respectively located on both sides of the electric slide rail, and the third U-shaped frame is slidably connected to the linear guide rail through sliders on the linear guide rails.

[0024] The above technical solution effectively ensures the stability of the front and rear adjustment components driven by the electric slide rail.

[0025] The working principle and beneficial effects of the utility model are as follows:

[0026] 1. The electric slide rail drives the front and rear adjustment components to move above the placement plate, and then the front and rear adjustment components drive the mounting frame to move forward and backward to the weight to be grasped. Finally, the retractable cylinder drives the mechanical gripper to rise and fall. With the cooperation of the electric slide rail and the front and rear adjustment components, the mechanical gripper can grasp the weight and place it on the scale body for testing. This saves time and effort, and can also avoid the weight falling off or being bumped, worn, or scratched by other objects due to manual handling.

[0027] 2. Through the cleaning component installed on the test table, the lifting component can clean the outer surface of the acrylic transparent cover when driving the acrylic transparent cover to rise and fall, thereby avoiding affecting the weighing numbers on the digital display screen of the scale body observed by personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0029] Figure 1 This is a schematic diagram of the cross-sectional structure of the acrylic transparent cover proposed in the present invention;

[0030] Figure 2 This is a schematic diagram of the overall three-dimensional structure proposed by the utility model;

[0031] Figure 3 This is a schematic diagram of the structure of the front and rear adjustment components proposed in the utility model;

[0032] Figure 4 This is a schematic diagram of the structure of the cleaning component proposed in the utility model;

[0033] Figure 5 The utility model provides a structural diagram of the lifting assembly.

[0034] In the figure: 1. Testing table; 2. Scale body; 3. Placement plate; 4. Weight slot;

[0035] 5. Lifting assembly; 51. First U-shaped frame; 52. Driving push rod; 53. Second U-shaped frame;

[0036] 6. Acrylic transparent cover; 7. Mechanical gripper; 8. Electric slide rail;

[0037] 9. Front and rear adjustment assembly; 91. Third U-shaped frame; 92. Threaded rod; 93. Fixing block; 94. Motor;

[0038] 10. Mounting frame; 11. Cylinder;

[0039] 12. Cleaning assembly; 1201. Fixing plate; 1202. Fixing frame; 1203. Sponge;

[0040] 13. Carrying frame; 14. Thumb screws; 15. Strip plate; 16. Strip groove; 17. Linear guide rail. DETAILED DESCRIPTION

[0041] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0042] See also Figures 1 to 5 A weighing instrument calibration mechanism suitable for weights of different specifications includes a test platform 1 and a weighing instrument body 2 fixedly mounted on the top of the test platform 1. Two placement plates 3 are fixedly mounted on the top of the test platform 1. The tops of the two placement plates 3 are sequentially provided with a plurality of weight slots 4 of different specifications from front to back.

[0043] Two lifting assemblies 5 are symmetrically fixedly installed on the top of the testing platform 1, and an acrylic transparent cover 6 is fixedly installed on the two lifting assemblies 5;

[0044] A mechanical gripper 7 for grabbing the weight is provided inside the acrylic transparent cover 6;

[0045] An electric slide rail 8 is fixedly mounted on the inner top wall of the acrylic transparent cover 6. The electric slide rail 8 is slidably connected to a front-rear adjustment assembly 9 via a slider. A mounting bracket 10 is fixedly mounted on the bottom of the front-rear adjustment assembly 9. A cylinder 11 is fixedly mounted on the inner bottom wall of the mounting bracket 10. The output end of the cylinder 11 passes through a side wall of the mounting bracket 10 and is connected to the mechanical gripper 7.

[0046] A cleaning assembly 12 is provided on the outer side wall of the detection platform 1 , and the acrylic transparent cover 6 is located on the inner side of the cleaning assembly 12 .

[0047] The utility model provides a weighing instrument calibration mechanism suitable for weights of different specifications. When in use, the controller on the detection platform 1 controls the electric slide 8, so that it can drive the front and rear adjustment component 9 to move above the placement plate 3, and then the controller controls the front and rear adjustment component 9 to drive the mounting frame 10 to move back and forth, so that the mechanical gripper 7 can clamp and grab the weights in the weight slots 4 of different specifications. After the position adjustment is completed, the controller controls the cylinder 11 to extend and retract, and then the retracted cylinder 11 drives the mechanical gripper 7 to rise and fall, and makes the mechanical gripper 7 move between the electric slide 8 and the front and rear adjustment component 9. With the cooperation of component 9, the weight can be grabbed onto the scale body 2 for testing, which saves time and effort and avoids the weight falling off or being bumped, worn or scratched by other objects due to manual handling of the weight. When the test is completed and the weight in the weight slot 4 is to be taken out, the controller controls the lifting component 5 to drive the acrylic transparent cover 6 to rise, which makes it easy to take out and replace the weight that has been tested in the weight slot 4, and enables the cleaning component 12 to clean the outer surface of the acrylic transparent cover 6, thereby avoiding affecting the personnel's observation of the weighing numbers on the digital display screen of the scale body 2.

[0048] Furthermore, the cleaning component 12 includes two fixing plates 1201, and the two fixing plates 1201 are fixedly installed on both sides of the detection platform 1 respectively. A fixing frame 1202 is provided in the middle of the two fixing plates 1201, and sponges 1203 are fixedly installed on the four walls inside the fixing frame 1202.

[0049] Specifically, the sponge 1203 inside the fixed frame 1202 can be used to clean the acrylic transparent cover 6 during lifting, thereby preventing the dust adsorbed on the acrylic transparent cover 6 from affecting the weighing numbers on the digital display screen observed by personnel.

[0050] Furthermore, a carrying frame 13 is fixedly installed on both sides of the fixed frame 1202, and the two carrying frames 13 are threadedly connected with hand screws 14, and the top ends of the two fixed plates 1201 are respectively plugged into the two carrying frames 13, and the screw ends of the hand screws 14 are in contact with the fixed plates 1201.

[0051] Specifically, the frame 13 cooperates with the hand screw 14 so that the fixing plates 1201 can be disassembled from each other, thereby facilitating the cleaning or replacement of the sponge 1203 that has been used for a long time.

[0052] Furthermore, the lifting assembly 5 includes a first U-shaped frame 51 fixedly installed on the top of the detection platform 1, and a driving push rod 52 is fixedly installed on the inner bottom wall of the first U-shaped frame 51. The top of the driving push rod 52 is fixedly connected to a second U-shaped frame 53, and the second U-shaped frame 53 is fixedly installed on the inner top wall of the acrylic transparent cover 6.

[0053] Specifically, the push rod 52 drives the second U-shaped frame 53 to move up and down, so that the acrylic transparent cover 6 engaged on the testing platform 1 can be opened and closed, thereby facilitating the removal and replacement of the tested weights in the weight slot 4.

[0054] Furthermore, the front-rear adjustment assembly 9 includes a third U-shaped frame 91 slidably connected to the electric slide rail 8 via a slider. The inner wall of the third U-shaped frame 91 is provided with a threaded rod 92 and a limit rod, and both ends of the threaded rod 92 and the limit rod are connected to the third U-shaped frame 91. The threaded rod 92 and the third U-shaped frame 91 are rotatably connected.

[0055] A fixing block 93 is commonly provided on the outer side wall of the threaded rod 92 and the limiting rod, and the fixing block 93 is threadedly connected to the threaded rod 92. The mounting frame 10 is fixedly installed on the bottom of the fixing block 93. A motor 94 is fixedly installed on one side of the third U-shaped frame 91 through the fixing frame, and the output end of the motor 94 is fixedly connected to the threaded rod 92.

[0056] Specifically, the motor 94 drives the threaded rod 92 to rotate, and then the rotating threaded rod 92, with the cooperation of the limit rod, can stably drive the fixed block 93 threadedly connected thereto to move back and forth, thereby facilitating the mechanical gripper 7 to grab the weights in the weight slots 4 of different specifications. Example 2

[0057] Based on the first embodiment, in this embodiment: strip plates 15 are fixedly installed on both sides of the first U-shaped frame 51, strip grooves 16 are opened on both sides of the second U-shaped frame 53, and the strip plates 15 are plugged into the strip grooves 16.

[0058] The technical solution provided by this embodiment is: the strip plate 15 and the strip groove 16 are used to improve the stability of the push rod 52, the second U-shaped frame 53 and the acrylic transparent cover 6 during the lifting process. Example 3

[0059] Based on Example 1, in this embodiment: two linear guide rails 17 are fixedly installed on the inner top wall of the acrylic transparent cover 6, and the two linear guide rails 17 are respectively located on both sides of the electric slide rail 8, and the third U-shaped frame 91 is slidably connected to the linear guide rail 17 through the slider on the linear guide rail 17.

[0060] The technical solution provided by this embodiment is: using the linear guide rail 17 is conducive to ensuring the stable performance of the electric slide rail 8 in driving the front and rear adjustment components 9 to move.

[0061] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A weighing instrument calibration mechanism suitable for weights of different specifications, comprising a testing platform (1) and a weighing instrument body (2) fixedly mounted on the top thereof, characterized in that: Two placement plates (3) are fixedly mounted on the top of the testing platform (1), and a plurality of weight slots (4) of different specifications are sequentially opened on the tops of the two placement plates (3) from front to back; Two lifting assemblies (5) are symmetrically fixedly mounted on the top of the detection platform (1), and an acrylic transparent cover (6) is fixedly mounted on the two lifting assemblies (5); A mechanical gripper (7) for grabbing a weight is provided inside the acrylic transparent cover (6); An electric slide rail (8) is fixedly mounted on the inner top wall of the acrylic transparent cover (6), and the electric slide rail (8) is slidably connected to a front-rear adjustment component (9) via a slider, and a mounting frame (10) is fixedly mounted on the bottom of the front-rear adjustment component (9), and a cylinder (11) is fixedly mounted on the inner bottom wall of the mounting frame (10), and an output end of the cylinder (11) passes through a side wall of the mounting frame (10) and is connected to the mechanical gripper (7); A cleaning component (12) is provided on the outer side wall of the detection platform (1), and the acrylic transparent cover (6) is located on the inner side of the cleaning component (12).

2. A weighing instrument calibration mechanism suitable for weights of different specifications according to claim 1, characterized in that: The cleaning assembly (12) comprises two fixing plates (1201), and the two fixing plates (1201) are fixedly mounted on both sides of the detection platform (1), respectively. A fixing frame (1202) is provided in the middle of the two fixing plates (1201), and sponges (1203) are fixedly mounted on the four walls inside the fixing frame (1202).

3. A weighing instrument calibration mechanism suitable for weights of different specifications according to claim 2, characterized in that: Both sides of the fixed frame (1202) are fixedly mounted with a running frame (13), and the two running frames (13) are threadedly connected with a hand screw (14), and the top ends of the two fixed plates (1201) are respectively plugged into the two running frames (13), and the screw ends of the hand screws (14) are in contact with the fixed plates (1201).

4. The weighing instrument calibration mechanism applicable to weights of different specifications according to claim 1, characterized in that: The lifting assembly (5) comprises a first U-shaped frame (51) fixedly mounted on the top of the inspection platform (1); a driving push rod (52) is fixedly mounted on the inner bottom wall of the first U-shaped frame (51); a second U-shaped frame (53) is fixedly connected to the top of the driving push rod (52); and the second U-shaped frame (53) is fixedly mounted on the inner top wall of the acrylic transparent cover (6).

5. The weighing instrument calibration mechanism applicable to weights of different specifications according to claim 4, characterized in that: Strip plates (15) are fixedly mounted on both sides of the first U-shaped frame (51), strip grooves (16) are opened on both sides of the second U-shaped frame (53), and the strip plates (15) are plugged into the strip grooves (16).

6. The weighing instrument calibration mechanism applicable to weights of different specifications according to claim 1, characterized in that: The front-rear adjustment assembly (9) includes a third U-shaped frame (91) slidably connected to the electric slide rail (8) via a slider, and the inner wall of the third U-shaped frame (91) is respectively provided with a threaded rod (92) and a limit rod, and both ends of the threaded rod (92) and the limit rod are connected to the third U-shaped frame (91), and the threaded rod (92) and the third U-shaped frame (91) are rotatably connected; A fixing block (93) is commonly provided on the outer side wall of the threaded rod (92) and the limiting rod, and the fixing block (93) is threadedly connected to the threaded rod (92). The mounting frame (10) is fixedly mounted on the bottom of the fixing block (93). A motor (94) is fixedly mounted on one side of the third U-shaped frame (91) through the fixing frame, and an output end of the motor (94) is fixedly connected to the threaded rod (92).

7. A weighing instrument calibration mechanism suitable for weights of different specifications according to claim 6, characterized in that: Two linear guide rails (17) are fixedly mounted on the inner top wall of the acrylic transparent cover (6), and the two linear guide rails (17) are respectively located on both sides of the electric slide rail (8), and the third U-shaped frame (91) is slidably connected to the linear guide rail (17) via a slider on the linear guide rail (17).

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