Electronic balance calibrating device and calibrating method

Abstract

The invention relates to the technical field of balance calibration, and discloses an electronic balance calibration device and method, and the device comprises a calibration table, the top of the calibration table is fixedly provided with a top frame, the rear side of the calibration table is provided with a power supply panel, the right side of the top of the calibration table is provided with an analytical balance, and the left side of the top of the calibration table is fixedly provided with a weight placement box. A plurality of standard weights which are evenly distributed in the horizontal direction are arranged on the side, away from the verification table, of the weight containing box, a constant temperature mechanism is movably arranged on the side, away from the verification table, of the weight containing box, and a fixing mechanism is arranged on the side, close to the analytical balance, in the verification table. The constant-temperature cover is matched with the weight placing box to provide a storage space for the standard weights, and the weights are directly stored on one side of the calibration equipment, so that the calibration efficiency is effectively improved, and the accuracy of the weights in the calibration process is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of balance verification, and specifically to an electronic balance verification device and a verification method. Background Art

[0002] An electronic balance is a precision weighing instrument that uses an electronic sensor to convert the weight of an object into a digital signal and display it on a display screen. It is widely used in laboratories, industrial production, pharmaceutical manufacturing, jewelry appraisal and other fields, mainly for accurately measuring the mass of an object. The classification of electronic balances includes analytical balances, which are commonly used in laboratories, precision balances suitable for most high-precision measurements, and general balances for daily weighing. Different types of electronic balances adapt to different measurement requirements according to different precisions and weighing ranges.

[0003] Electronic balance verification refers to the accuracy and stability tests of the metrological performance of an electronic balance to ensure that it meets the national metrological standards, usually including the detection of items such as weighing repeatability, linearity, and sensitivity. Taking an analytical balance as an example, due to its high precision, the verification conditions are more stringent.

[0004] In traditional verification methods, the manual weight loading method is relatively common. By manually applying weights to the balance, the verification data of the balance can be observed. However, the traditional operation is cumbersome and prone to introducing human errors, and it is also necessary to ensure the prevention of contamination or wear, which affects the measurement accuracy. Therefore, some verification devices in the prior art adopt semi-automatic or automatic weight loading methods. However, due to the relatively harsh storage conditions of high-precision weights, when verifying a balance in the prior art, it is necessary to take out the weights from the weight storage box or storage cabinet, and then take the weights through an automatic loading device and apply them to the balance. The operation process is more, which to a certain extent affects the verification efficiency.

[0005] Therefore, the present invention proposes an electronic balance verification device and a verification method to solve the deficiencies in the prior art. Summary of the Invention

[0006] The purpose of the present invention is to provide an electronic balance verification device and a verification method to solve the problem that when verifying a balance in the prior art, it is necessary to take out the weights from the storage box or storage cabinet, and then take the weights through an automatic loading device and apply them to the balance. The operation process is more, which to a certain extent affects the verification efficiency.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] An electronic balance calibration device, including a calibration table, a top frame is fixed on the top of the calibration table, a power supply panel is arranged at the rear side of the calibration table, an analytical balance is placed on the right side of the top of the calibration table, a weight placement box is fixed on the left side of the top of the calibration table, a plurality of standard weights are arranged on the side of the weight placement box away from the calibration table and are evenly distributed in the horizontal direction, a temperature control mechanism is movably arranged on the side of the weight placement box away from the calibration table, and a fixing mechanism is arranged inside the calibration table near the analytical balance;

[0009] The temperature control mechanism includes a temperature control cover, the temperature control cover is movably arranged on the side of the weight placement box away from the calibration table, a nitrogen filling port is arranged on the side of the temperature control cover away from the weight placement box, a semiconductor refrigeration sheet is fixedly connected inside the side of the temperature control cover close to the power supply panel, a heat dissipation fan is fixedly connected to the side of the semiconductor refrigeration sheet away from the temperature control cover, a dust-proof box is fixed on the side of the temperature control cover close to the power supply panel, one end of the nitrogen filling port away from the temperature control cover is connected to a nitrogen storage tank through a conveying pipeline, and a turning mechanism is arranged on the side of the temperature control cover away from the weight placement box.

[0010] Preferably, the fixing mechanism includes a motor, the motor is fixedly installed inside the calibration table near the analytical balance, a screw rod is fixed to the output end of the motor, a sliding block is threadedly connected to the outer circumference of the screw rod, moving blocks one are fixed to both the left and right sides of the sliding block, moving blocks two are slidably connected to the opposite sides of the two moving blocks one, two connecting rods are fixed to the side of the moving block two close to the analytical balance, dust-proof plates are fixed to the outer circumferences of the two connecting rods, a clamping plate is fixed to the side of the connecting rod away from the moving block two, a connecting component is arranged on the side of the moving block one close to the moving block two, and a transmission mechanism is arranged at the end of the screw rod away from the motor.

[0011] Preferably, the turning mechanism includes two L-shaped frames, both of the two L-shaped frames are fixed to the top of the side of the temperature control cover away from the weight placement box, an electric push rod is rotatably connected to the side of the L-shaped frame away from the nitrogen filling port, and a fixed seat is rotatably connected to the end of the electric push rod away from the L-shaped frame, and the fixed seat is fixedly connected to the top of the calibration table near the weight placement box.

[0012] Preferably, the transmission mechanism includes a first transmission gear, which is fixedly connected to one end of the screw rod away from the motor. A second transmission gear is rotatably connected to the middle side inside the inspection table. The second transmission gear meshes with the first transmission gear. A first sprocket is fixedly connected to the front side of the second transmission gear. A second sprocket is rotatably connected to one side of the inspection table close to the weight placement box. A chain is sleeved on the outer circumferences of the first sprocket and the second sprocket. A jacking assembly is arranged on the side of the chain close to the power supply panel.

[0013] Preferably, the connection assembly includes an isosceles trapezoidal block, which is fixedly connected to the side of the first moving block close to the second moving block. An isosceles trapezoidal groove that fits the isosceles trapezoidal block is formed inside the second moving block. The isosceles trapezoidal block is slidably connected inside the isosceles trapezoidal groove.

[0014] Preferably, the jacking assembly includes a rotating disc, which is fixedly connected to the side of the second sprocket close to the power supply panel. A rotating rod is fixed to the side of the rotating disc away from the second sprocket. Transmission arms are fixedly arranged on the outer circumferences of the front and rear ends of the rotating rod. Jacking plates are movably connected to the opposite sides of the ends of the two transmission arms away from the rotating rod. A connecting plate is fixed to the end of the jacking plate close to the L-shaped frame.

[0015] Preferably, a taking mechanism is arranged inside the top frame. The taking mechanism includes two sliding rods, which are respectively arranged inside the front and rear sides of the top frame. An electric sliding plate is slidably connected to the outer circumference of the sliding rod. A mechanical clamping arm is slidably connected inside the electric sliding plate.

[0016] Preferably, the power supply panel is connected to the electric push rod, the cooling fan, and the sliding rod through a plurality of transmission lines.

[0017] Preferably, the outer circumference of the connecting plate is slidably connected to the inside of one side of the inspection table close to the weight placement box. The bottom of the L-shaped frame is rotatably connected to the outer circumferences of the front and rear ends of the connecting plate.

[0018] The present invention also provides an electronic balance verification method, including the following steps:

[0019] S1. Conduct a comprehensive inspection on each component of the electronic balance verification device to confirm that the power supply panel is normally connected, the power supply of each device is stable, the functions of the motor, the electric push rod, the cooling fan, the mechanical clamping arm, etc. are intact, and the nitrogen storage tank is full of nitrogen;

[0020] S2. Carefully place the analytical balance to be verified on the right side of the top of the inspection table to ensure that it is located between the two clamping plates, preparing for subsequent fixing operations;

[0021] S3. Start the motor through the control panel. The motor drives the screw to rotate, causing the slider and the connected moving block 1 to move horizontally. The isosceles trapezoidal block slides in the isosceles trapezoidal groove, pushing the moving block 2 to move towards each other, driving the clamping plates to approach and firmly clamp the analytical balance. Then, turn off the motor.

[0022] S4. While the motor is rotating, it drives the transmission gear 1 to rotate, successively causing the transmission gear 2, the sprocket 1, and the sprocket 2 to rotate. The rotating disc drives the rotating rod and the transmission arm to move, and the lifting plate rises to make the L-shaped frame rise. At this time, start the electric push rod, and the L-shaped frame drives the constant temperature cover to flip open, exposing the standard weights.

[0023] S5. Start the electric skateboard and the mechanical clamping arm. The electric skateboard moves along the slide rod to make the mechanical clamping arm approach the standard weights. After clamping, place them on the analytical balance, conduct the balance verification and record the data in detail. If continuous verification is carried out, turn off the electric push rod to prevent the constant temperature cover from contacting the weight placement box multiple times. If the verification is paused, put the weights back and close the cover.

[0024] S6. After the verification is completed, use the mechanical clamping arm to put the standard weights back, and start the motor again to make the clamping plates move away from the analytical balance. At the same time, the transmission arm drives the lifting plate to descend, and start the electric push rod to make the constant temperature cover cover the weight placement box. Take out the analytical balance, start the cooling fan, fill with nitrogen, the electric skateboard moves away from the constant temperature cover, and finally perform maintenance on each part of the equipment.

[0025] Advantages of the present invention:

[0026] 1. The present invention provides a storage space for the standard weights through the cooperation of the constant temperature cover and the weight placement box. The nitrogen in the nitrogen storage tank enters the placement space through the delivery pump, the delivery pipeline, and the nitrogen filling port, effectively reducing the oxidation of the standard weights. The semiconductor refrigeration sheet and the cooling fan form a heat dissipation structure, enabling the standard weights to be in a constant temperature environment, and directly storing the weights on one side of the verification equipment, effectively improving the verification efficiency and ensuring the accuracy of the weights during the verification process.

[0027] 2. Through the mutual cooperation of the fixing mechanism and the connection components, after the motor is started, it drives the screw to rotate, causing the slider to move horizontally along the axis of the screw, thereby driving the moving block 1 to move. The isosceles trapezoidal block slides in the isosceles trapezoidal groove, pushing the moving block 2 to move horizontally, and driving the clamping plates to move through the connecting rod, firmly fixing the analytical balance, ensuring that the balance moves less unnecessarily during the verification process, and guaranteeing the reliability of the verification results.

[0028] 3. Through the mutual cooperation of the transmission mechanism, the jacking assembly, and the flipping mechanism in the present invention, when the screw rotates, it drives the first transmission gear to rotate, thereby causing the second transmission gear, the first sprocket, and the second sprocket to rotate in sequence. When the second sprocket rotates, the rotating disc of the jacking assembly rotates synchronously, driving the rotating rod and the transmission arm to perform circular motion, causing the jacking plate to rise vertically and driving the L-shaped frame to rise. At this time, the electric push rod in the flipping mechanism contracts to control the flipping of the L-shaped frame and open the constant-temperature cover, facilitating the cooperation with the mechanical gripping arm to pick up the standard weight, solving the problem of inconvenient weight picking in the traditional method, and improving the efficiency of the verification work.

[0029] Of course, it is not necessary for any product implementing the present invention to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0031] Figure 1 It is a three-dimensional schematic diagram of an electronic balance verification device and a verification method of the present invention;

[0032] Figure 2 It is a structural schematic diagram of a weight placement box of an electronic balance verification device and a verification method of the present invention;

[0033] Figure 3 It is a structural schematic diagram of a verification table of an electronic balance verification device and a verification method of the present invention;

[0034] Figure 4 It is a structural schematic diagram of a standard weight of an electronic balance verification device and a verification method of the present invention;

[0035] Figure 5 It is a structural schematic diagram of a power supply panel of an electronic balance verification device and a verification method of the present invention;

[0036] Figure 6 It is a structural schematic diagram of a constant-temperature cover of an electronic balance verification device and a verification method of the present invention;

[0037] Figure 7 It is a structural schematic diagram of a top frame of an electronic balance verification device and a verification method of the present invention;

[0038] Figure 8 It is a structural schematic diagram of a screw of an electronic balance verification device and a verification method of the present invention;

[0039] Figure 9Schematic structural diagram of an isosceles trapezoidal block of an electronic balance calibration device and calibration method of the present invention.

[0040] Figure 10 Schematic structural diagram of a first transmission gear of an electronic balance calibration device and calibration method of the present invention;

[0041] Figure 11 Schematic structural diagram of a first sprocket of an electronic balance calibration device and calibration method of the present invention;

[0042] Figure 12 Schematic structural diagram of an electric slide of an electronic balance calibration device and calibration method of the present invention.

[0043] Wherein, 1, calibration table; 2, fixing mechanism; 201, motor; 202, screw rod; 203, sliding block; 204, first moving block; 205, second moving block; 206, connecting rod; 207, dust-proof plate; 208, clamping plate; 3, connecting component; 301, isosceles trapezoidal block; 302, isosceles trapezoidal groove; 4, constant temperature mechanism; 401, constant temperature cover; 402, nitrogen filling port; 403, semiconductor refrigeration sheet; 404, dust-proof box; 405, cooling fan; 406, conveying pipeline; 407, nitrogen storage tank; 5, flipping mechanism; 501, L-shaped frame; 502, electric push rod; 503, fixed seat; 6, transmission mechanism; 601, first transmission gear; 602, second transmission gear; 603, first sprocket; 604, chain; 605, second sprocket; 7, jacking component; 701, rotating disc; 702, rotating rod; 703, transmission arm; 704, jacking plate; 705, connecting plate; 8, picking mechanism; 801, sliding rod; 802, electric slide; 803, mechanical clamping arm; 9, top frame; 10, power supply panel; 11, standard weight; 12, weight placement box; 13, analytical balance. Specific embodiments

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] Please refer to Figure 1 - Figure 5As shown in the figure, the present invention is an electronic balance verification device, including a verification table 1. A top frame 9 is fixed on the top of the verification table 1. A power supply panel 10 is arranged at the rear side of the verification table 1. An analytical balance 13 is placed on the right side of the top of the verification table 1. A weight placement box 12 is fixed on the left side of the top of the verification table 1. A plurality of standard weights 11 evenly distributed in the horizontal direction are arranged on the side of the weight placement box 12 away from the verification table 1. A constant temperature mechanism 4 is movably arranged on the side of the weight placement box 12 away from the verification table 1. A fixing mechanism 2 is arranged inside the verification table 1 near the analytical balance 13;

[0046] Specifically, the verification table 1 and the top frame 9 are combined to form a workbench for verifying the balance. A PLC control device is arranged on the front side of the verification table 1. The control device is provided with a corresponding control panel for controlling the work of the verification device. The power supply panel 10 is used to provide power for each part of the verification table 1, so that the verification device can work normally to verify the balance. The weight placement box 12 is internally provided with sponge for storing and placing weights. The standard weights 11 are E2 grade weights, meeting the national standards JJG99 - 2006 and GB / T26497 - 2011.

[0047] Please refer to Figure 5 - Figure 6 As shown in the figure, the constant temperature mechanism 4 includes a constant temperature cover 401. The constant temperature cover 401 is movably arranged on the side of the weight placement box 12 away from the verification table 1. A nitrogen filling port 402 is arranged on the side of the constant temperature cover 401 away from the weight placement box 12. A semiconductor refrigerating sheet 403 is fixedly connected inside the side of the constant temperature cover 401 close to the power supply panel 10. A heat dissipation fan 405 is fixedly connected to the side of the semiconductor refrigerating sheet 403 away from the constant temperature cover 401. A dust-proof box 404 is fixed on the side of the constant temperature cover 401 close to the power supply panel 10. One end of the nitrogen filling port 402 away from the constant temperature cover 401 is connected to a nitrogen storage tank 407 through a conveying pipeline 406. A turning mechanism 5 is arranged on the side of the constant temperature cover 401 away from the weight placement box 12.

[0048] Specifically, the constant temperature cover 401 is used in cooperation with the weight placement box 12 to provide a storage and placement space for the standard weights 11. Nitrogen is stored inside the nitrogen storage tank 407. A delivery pump is arranged on the top and is connected to the conveying pipeline 406. The other end of the conveying pipeline 406 is connected to the nitrogen filling port 402. Nitrogen enters the placement space formed by the constant temperature cover 401 and the weight placement box 12 through the delivery pump, the conveying pipeline 406, and the nitrogen filling port 402, effectively reducing the oxidation of the standard weights 11. The semiconductor refrigerating sheet 403 and the heat dissipation fan 405 are used in cooperation to make the standard weights 11 be in a placement environment of 18 - 22 °C. The dust-proof box 404 is used to reduce the dust adhering to the outer periphery of the heat dissipation fan 405, effectively avoiding the reduction of the efficiency of the heat dissipation fan 405.

[0049] Please refer toFigure 7 - Figure 9 As shown in Figure 9 , the fixing mechanism 2 includes a motor 201. The motor 201 is fixedly installed on one side of the inside of the verification table 1 near the analytical balance 13. A screw rod 202 is fixed to the output end of the motor 201. A sliding block 203 is threadedly connected to the outer periphery of the screw rod 202. A first moving block 204 is fixed to both the left and right sides of the sliding block 203. A second moving block 205 is slidably connected to the opposite sides of the two first moving blocks 204. Two connecting rods 206 are fixed to the side of the second moving block 205 close to the analytical balance 13. Dust-proof plates 207 are fixed to the outer peripheries of the two connecting rods 206. A clamping plate 208 is fixed to the side of the connecting rod 206 away from the second moving block 205. A connecting component 3 is provided on the side of the first moving block 204 close to the second moving block 205. A transmission mechanism 6 is provided at the end of the screw rod 202 away from the motor 201.

[0050] Specifically, the motor 201 is a stepping motor with the model 28BYJ-48. The output end of the motor 201 is connected to the screw rod 202. After the motor 201 is started, it will control the screw rod 202 to rotate synchronously. The sliding block 203 threadedly connected to the outer periphery of the screw rod 202 will move horizontally along the axis of the screw rod 202. During the horizontal movement of the sliding block 203, the two first moving blocks 204 on the left and right sides will move horizontally synchronously, thereby applying a force to the second moving block 205, causing the second moving block 205 to move horizontally. Two connecting rods 206 are fixed to the top of the second moving block 205. The connecting rods 206 are used to connect the second moving block 205 and the clamping plate 208. When the second moving block 205 moves, it will drive the clamping plate 208 to move synchronously. The clamping plate 208 is mainly used to contact the analytical balance 13 to fix the analytical balance 13. The dust-proof plate 207 is used to prevent dust from entering the verification table 1 from the moving groove accommodating the connecting rod 206. The dust-proof plate 207 is also slidably connected to the inside of the verification table 1.

[0051] Please refer to Figure 5 As shown in Figure 5 , the flipping mechanism 5 includes two L-shaped frames 501. The two L-shaped frames 501 are both fixed to the top of the side of the constant temperature cover 401 away from the weight placing box 12. An electric push rod 502 is rotatably connected to the side of the L-shaped frame 501 away from the nitrogen filling port 402. One end of the electric push rod 502 away from the L-shaped frame 501 is rotatably connected to a fixed seat 503. The fixed seat 503 is fixedly connected to the top of the verification table 1 on the side close to the weight placing box 12.

[0052] Specifically, the L-shaped frame 501 is fixed to the top of the constant-temperature cover 401, and the other side is rotatably connected to the electric push rod 502 to form a rotating pair. When the electric push rod 502 contracts, rotation occurs between the L-shaped frame 501 and the electric push rod 502, so that the L-shaped frame 501 drives the constant-temperature cover 401 to rotate. The electric push rod 502 uses a small push rod of the Li nak LA20 model, and the other end is electrically connected to the fixed seat 503 and also forms a rotating connection to form a rotating pair, which cooperates with the electric push rod 502 to flip the constant-temperature cover 401.

[0053] Please refer to Figure 10 - Figure 11 As shown in the figure, the transmission mechanism 6 includes a first transmission gear 601, which is fixedly connected to one end of the screw 202 away from the motor 201. A second transmission gear 602 is rotatably connected to the middle side inside the calibration table 1. The second transmission gear 602 meshes with the first transmission gear 601. A first sprocket 603 is fixedly connected to the front side of the second transmission gear 602. A second sprocket 605 is rotatably connected to one side of the calibration table 1 close to the weight placement box 12. A chain 604 is sleeved on the outer circumferences of the first sprocket 603 and the second sprocket 605. A lifting assembly 7 is provided on one side of the chain 604 close to the power supply panel 10.

[0054] Specifically, the first transmission gear 601 is fixedly connected to one end of the screw 202. When the screw 202 rotates, it will drive the first transmission gear 601 to rotate synchronously. The first transmission gear 601 and the second transmission gear 602 meet the conditions of the same modulus, the same pressure angle, the same tooth profile, and the appropriate center distance. When the first transmission gear 601 rotates, it will cause the second transmission gear 602 to rotate accordingly. The second transmission gear 602 is fixed to the first sprocket 603. When the first transmission gear 601 controls the rotation of the second transmission gear 602, the second transmission gear 602 will control the rotation of the first sprocket 603. A chain 604 is sleeved on the outer circumferences of the first sprocket 603 and the second sprocket 605. Therefore, when the first sprocket 603 rotates, the second sprocket 605 can be driven through the chain 604, so that while fixing the analytical balance 13, the constant-temperature cover 401 can be opened to expose the standard weight 11, which is convenient for taking the standard weight 11.

[0055] Please refer to Figure 9 As shown in the figure, the connection assembly 3 includes an isosceles trapezoidal block 301, which is fixedly connected to one side of the first moving block 204 close to the second moving block 205. An isosceles trapezoidal groove 302 that fits the isosceles trapezoidal block 301 is opened inside the second moving block 205. The isosceles trapezoidal block 301 is slidably connected inside the isosceles trapezoidal groove 302.

[0056] Specifically, the isosceles trapezoidal block 301 is fixedly connected to one side of the first moving block 204 and is engaged with the isosceles trapezoidal groove 302 formed inside the second moving block 205. When a sliding movement occurs between the first moving block 204 and the second moving block 205, the isosceles trapezoidal block 301 also slides inside the isosceles trapezoidal groove 302, thereby causing the second moving block 205 to move horizontally.

[0057] Please refer to Figure 11 As shown, the jacking assembly 7 includes a rotating disc 701. The rotating disc 701 is fixedly connected to one side of the second sprocket 605 close to the power supply panel 10. A rotating rod 702 is fixed to the side of the rotating disc 701 away from the second sprocket 605. Transmission arms 703 are fixed to the outer circumferences of the front and rear ends of the rotating rod 702. The ends of the two transmission arms 703 away from the rotating rod 702 are movably connected to one side facing each other of a jacking plate 704. A connecting plate 705 is fixed to the end of the jacking plate 704 close to the L-shaped frame 501. The outer circumference of the connecting plate 705 is slidably connected to the inside of one side of the calibration table 1 close to the weight placement box 12. The bottom of the L-shaped frame 501 is rotatably connected to the outer circumferences of the front and rear ends of the connecting plate 705.

[0058] Specifically, the rotating disc 701 is connected to the second sprocket 605 through a rod-shaped connecting piece. When the second sprocket 605 rotates, the rotating disc 701 will rotate synchronously, thereby causing the rotating rod 702 to rotate. At this time, the transmission arms 703 fixed to the outer circumference of the rotating rod 702 will take the rotating rod 702 as the axis and the transmission arm 703 as the radius to perform a circular motion. The jacking plate 704 is also movably connected to the transmission arm 703 through a rod-shaped connecting piece. When the transmission arm 703 rotates, it will drive the jacking plate 704 to move together. Since the connecting plate 705 fixed to the top of the jacking plate 704 is slidably connected to the inside of the calibration table 1, the jacking plate 704 can only move vertically. At this time, while the jacking plate 704 and the transmission arm 703 perform a rotational movement, they will also generate a certain sliding movement, enabling the transmission arm 703 to stably drive the jacking plate 704 to move upward, and the connecting plate 705 will drive the L-shaped frame 501 connected to the top to move vertically upward, thereby cooperating with the electric push rod 502 to flip the L-shaped frame 501.

[0059] Please refer to Figure 12 As shown, a taking mechanism 8 is provided inside the top frame 9. The taking mechanism 8 includes two sliding rods 801. The two sliding rods 801 are respectively arranged inside the front and rear sides of the top frame 9. An electric sliding plate 802 is slidably connected to the outer circumference of the sliding rod 801. A mechanical clamping arm 803 is slidably connected to the inside of the electric sliding plate 802.

[0060] Specifically, the sliding rod 801 is fixed inside the top frame 9, and the front and rear ends of the electric skateboard 802 respectively form a moving pair with the two sliding rods 801. Thus, the electric skateboard 802 can move horizontally along the sliding rod 801. Inside the electric skateboard 802, there is also a mechanically clamping arm 803 slidably connected, which is used to clamp the standard weight 11. The mechanically clamping arm 803 adopts a Doosan M0609 type robotic arm, featuring high stability and smooth movement.

[0061] Please refer to Figure 5 As shown, the power supply panel 10 is connected to the electric push rod 502, the cooling fan 405, and the sliding rod 801 through multiple transmission lines.

[0062] Specifically, the power supply panel 10 is provided with multiple transmission line interfaces for connecting to various parts of the verification equipment to provide power, enabling the verification equipment to operate normally. The transmission line interfaces include, but are not limited to, USB interfaces, TYP-C interfaces, and socket interfaces.

[0063] Working principle: Before verifying the balance, first check whether all parts of the verification equipment can operate normally. Subsequently, place the analytical balance 13 to be verified on the top right side of the verification table 1, between the two clamping plates 208. Then, start the motor 201 through the control panel and turn off the cooling fan 405 and stop the nitrogen delivery. After the motor 201 is started, the motor 201 will control the screw rod 202 to rotate. The sliding block 203 threadedly connected to the outer circumference of the screw rod 202 will move horizontally along the screw rod 202 towards the motor 201 when the screw rod 202 rotates. When the sliding block 203 moves, the moving blocks one 204 on the left and right sides of the sliding block 203 will move along the sides of the moving blocks two 205, and the isosceles trapezoidal block 301 will slide inside the isosceles trapezoidal groove 302. At this time, since the sliding block 203 drives the moving block one 204 to move towards the motor 201, the two moving blocks two 205 will move towards each other. When the two moving blocks two 205 move towards each other, the connecting rod 206 will drive the clamping plate 208 to move towards the side of the analytical balance 13. After the clamping plate 208 contacts the analytical balance 13, the motor 201 can be turned off;

[0064] While the motor 201 controls the rotation of the screw 202, one end of the screw 202 away from the motor 201 will control the rotation of the first transmission gear 601. Since the first transmission gear 601 meshes with the second transmission gear 602, after the first transmission gear 601 rotates, it will control the second transmission gear 602 to rotate accordingly. At this time, the rotation directions of the first transmission gear 601 and the second transmission gear 602 are opposite, and because the size of the first transmission gear 601 is smaller than that of the second transmission gear 602, the rotation speed of the second transmission gear 602 is less than that of the first transmission gear 601. After the second transmission gear 602 rotates, the first sprocket 603 fixedly connected to the front side of the second transmission gear 602 will rotate together with the second transmission gear 602. A chain 604 is sleeved on the outer circumferences of the first sprocket 603 and the second sprocket 605. Therefore, after the first sprocket 603 rotates, the chain 604 will correspondingly transmit the rotational movement of the first sprocket 603 and then control the second sprocket 605 to rotate. After the second sprocket 605 is driven by the chain 604 to rotate, it will drive the rotating disc 701 to rotate synchronously;

[0065] The rotating disc 701 is fixed to the second sprocket 605. When the second sprocket 605 rotates, the rotating disc 701 will move in the same direction and at the same speed as the rotation of the second sprocket 605. The rotating rod 702 fixed to one side of the rotating disc 701 will also rotate accordingly. At this time, the transmission arm 703 fixed to the outer circumference of the rotating rod 702 will perform a circular motion. When the transmission arm 703 performs a circular motion, it will drive the lifting plate 704 to move together. The transmission arm 703 is movably connected to the lifting plate 704, and the connecting plate 705 fixed to the top of the lifting plate 704 is slidably connected inside the calibration table 1. Therefore, the transmission arm 703 will lift the lifting plate 704. Further, the connecting plate 705 generates an upward vertical movement, causing the L-shaped frame 501 to rise;

[0066] While the L-shaped frame 501 is rising, the electric push rod 502 is started through the control panel. At this time, while the L-shaped frame 501 drives the constant temperature cover 401 to move upward, the electric push rod 502 contracts to control the L-shaped frame 501 to flip, so that the standard weight 11 can be taken;

[0067] Start the electric skateboard 802 and the mechanical gripper arm 803 through the control panel. The electric skateboard 802 moves horizontally along the slide bar 801 to bring the mechanical gripper arm 803 close to the standard weight 11. After the mechanical gripper arm 803 approaches the standard weight 11, the standard weight 11 can be picked up by the mechanical gripper arm 803. Subsequently, the standard weight 11 is placed into the analytical balance 13 for balance verification, and the verification data is recorded. When multiple balances need to be continuously detected, in order to prevent the constant temperature cover 401 from contacting the weight placement box 12 repeatedly, the electric push rod 502 needs to be shut down. When the verification work needs to be paused, the weights need to be put back into the weight placement box 12, and the constant temperature cover 401 and the weight placement box 12 are closed to reduce the oxidation of the weights;

[0068] After the verification work is completed, the standard weight 11 is put back into the analytical balance 13 through the mechanical gripper arm 803. Subsequently, the motor 201 is started again. At this time, the motor 201 drives the screw rod 202 to rotate in the reverse direction, and the sliding block 203 moves horizontally away from the motor 201 along the screw rod 202. The two clamping plates 208 move away from the analytical balance 13. At the same time, the transmission arm 703 drives the lifting plate 704 to descend. By starting the electric push rod 502, the constant temperature cover 401 covers the top of the weight placement box 12 to form a storage and placement space.

[0069] After that, the analytical balance 13 is taken out, and the cooling fan 405 is started through the control panel to fill nitrogen into the storage and placement space of the weights. After the nitrogen fills the storage and placement space, the air pump can be shut down, and the electric skateboard 802 is moved away from the constant temperature cover 401 along the slide bar 801. Subsequently, each part of the verification equipment is maintained to ensure that the next verification work is carried out accurately.

[0070] The above content is only an example and explanation of the concept of the present invention. Those skilled in the art of this technology make various modifications or supplements to the described specific embodiments or use similar methods to replace them. As long as they do not deviate from the concept of the invention or exceed the scope defined by this claim book, they should all belong to the protection scope of the present invention.

Claims

1. An electronic balance calibration device, comprising a calibration platform (1), characterized in that: A top frame (9) is fixed on the top of the calibration platform (1), a power supply panel (10) is arranged on the rear side of the calibration platform (1), an analytical balance (13) is placed on the right side of the top of the calibration platform (1), a weight placement box (12) is fixed on the left side of the top of the calibration platform (1), a plurality of standard weights (11) evenly distributed in a horizontal direction are arranged on the side of the weight placement box (12) away from the calibration platform (1), a constant temperature mechanism (4) is movably arranged on the side of the weight placement box (12) away from the calibration platform (1), and a fixing mechanism (2) is arranged on the side of the calibration platform (1) close to the analytical balance (13); The constant temperature mechanism (4) comprises a constant temperature cover (401), the constant temperature cover (401) being movably arranged on a side of the weight placement box (12) away from the calibration platform (1), a nitrogen filling port (402) being arranged on the side of the constant temperature cover (401) away from the weight placement box (12), a semiconductor cooling plate (403) being fixedly connected inside the side of the constant temperature cover (401) close to the power supply panel (10), a cooling fan (405) being fixedly connected on the side of the semiconductor cooling plate (403) away from the constant temperature cover (401), a dustproof box (404) being fixed on the side of the constant temperature cover (401) close to the power supply panel (10), an end of the nitrogen filling port (402) away from the constant temperature cover (401) being connected to a nitrogen storage tank (407) via a delivery pipe (406), and a flipping mechanism (5) being arranged on the side of the constant temperature cover (401) away from the weight placement box (12).

2. An electronic balance calibration device according to claim 1, characterized in that: The fixing mechanism (2) comprises a motor (201), the motor (201) being fixedly mounted on a side of the inside of the calibration platform (1) close to the analytical balance (13), a screw rod (202) being fixed on the output end of the motor (201), a sliding block (203) being threadedly connected to the outer periphery of the screw rod (202), a moving block 1 (204) being fixed on both the left and right sides of the sliding block (203), and a moving block 2 (205) being slidably connected to the opposite sides of the two moving blocks 1 (204), Two connecting rods (206) are fixed to the side of the moving block 2 (205) close to the analytical balance (13), and dustproof plates (207) are fixed to the outer peripheries of the two connecting rods (206). A clamping plate (208) is fixed to the side of the connecting rod (206) away from the moving block 2 (205). A connecting assembly (3) is provided on the side of the moving block 1 (204) close to the moving block 2 (205), and a transmission mechanism (6) is provided on the end of the screw rod (202) away from the motor (201).

3. The electronic balance calibration device according to claim 1, characterized in that: The flip mechanism (5) comprises two L-shaped frames (501), both of which are fixed to the top of the thermostatic cover (401) on a side away from the weight placement box (12), and the side of the L-shaped frame (501) away from the nitrogen filling port (402) is rotatably connected to an electric push rod (502), and one end of the electric push rod (502) away from the L-shaped frame (501) is rotatably connected to a fixed seat (503), and the fixed seat (503) is fixedly connected to the top of the calibration platform (1) on a side close to the weight placement box (12).

4. The electronic balance calibration device according to claim 2, characterized in that: The transmission mechanism (6) comprises a transmission gear 1 (601), wherein the transmission gear 1 (601) is fixedly connected to an end of the screw rod (202) away from the motor (201), a transmission gear 2 (602) is rotatably connected to the middle side of the interior of the calibration platform (1), the transmission gear 2 (602) is meshed with the transmission gear 1 (601), a sprocket 1 (603) is fixedly connected to the front side of the transmission gear 2 (602), a sprocket 2 (605) is rotatably connected to the side of the interior of the calibration platform (1) close to the weight placement box (12), a chain (604) is sleeved on the outer periphery of the sprocket 1 (603) and the sprocket 2 (605), and a lifting assembly (7) is provided on the side of the chain (604) close to the power supply panel (10).

5. The electronic balance calibration device according to claim 2, characterized in that: The connecting assembly (3) comprises an isosceles trapezoidal block (301), wherein the isosceles trapezoidal block (301) is fixedly connected to a side of the moving block 1 (204) close to the moving block 2 (205), an isosceles trapezoidal groove (302) matching the isosceles trapezoidal block (301) is provided inside the moving block 2 (205), and the isosceles trapezoidal block (301) is slidably connected inside the isosceles trapezoidal groove (302).

6. The electronic balance calibration device according to claim 4, characterized in that: The lifting assembly (7) comprises a rotating disc (701), wherein the rotating disc (701) is fixedly connected to a side of the second sprocket (605) close to the power supply panel (10), a rotating rod (702) is fixed to a side of the rotating disc (701) away from the second sprocket (605), transmission arms (703) are fixed to the outer peripheries of both front and rear ends of the rotating rod (702), and a lifting plate (704) is movably connected to the opposite side of one end of the two transmission arms (703) away from the rotating rod (702), and a connecting plate (705) is fixed to one end of the lifting plate (704) close to the L-shaped frame (501).

7. The electronic balance calibration device according to claim 3, characterized in that: A picking mechanism (8) is provided inside the top frame (9), and the picking mechanism (8) includes two sliding bars (801), which are respectively arranged inside the front and rear sides of the top frame (9), and the outer periphery of the sliding bar (801) is slidably connected to an electric slide plate (802), and the inside of the electric slide plate (802) is slidably connected to a mechanical clamping arm (803).

8. An electronic balance calibration device according to claim 7, characterized in that: The power supply panel (10) is connected to the electric push rod (502), the cooling fan (405), and the sliding rod (801) through a plurality of transmission lines.

9. The electronic balance calibration device according to claim 6, characterized in that: The outer periphery of the connecting plate (705) is slidably connected to the inside of one side of the calibration platform (1) close to the weight placement box (12), and the bottom of the L-shaped frame (501) is rotatably connected to the outer periphery of the front and rear ends of the connecting plate (705).

10. An electronic balance calibration method, according to any one of the electronic balance calibration devices according to claims 1-9, characterized in that: The following steps are involved: S1. Perform a comprehensive inspection on all components of the electronic balance calibration device to confirm that the power supply panel (10) is connected normally, the power supply of each device is stable, the motor (201), the electric push rod (502), the cooling fan (405), the mechanical gripping arm (803) and the like are functioning properly, and the nitrogen storage tank (407) is full of nitrogen; S2. Carefully place the analytical balance (13) to be calibrated on the top right side of the calibration platform (1), ensuring that it is located between the two clamping plates (208) in preparation for subsequent fixing operations; S3, starting the motor (201) through the control panel, the motor (201) drives the screw (202) to rotate, so that the sliding block (203) and the connected moving block 1 (204) move horizontally, the isosceles trapezoidal block (301) slides in the isosceles trapezoidal groove (302), pushing the moving block 2 (205) to move toward each other, driving the clamping plate (208) to approach and firmly clamp the analytical balance (13), and then shutting down the motor (201); S4, the motor (201) rotates, driving the transmission gear 1 (601) to rotate, which in turn causes the transmission gear 2 (602), the sprocket 1 (603), and the sprocket 2 (605) to rotate, and the rotating disk (701) drives the rotating rod (702) and the transmission arm (703) to move, and the lifting plate (704) rises to cause the L-shaped frame (501) to rise. At this time, the electric push rod (502) is started, and the L-shaped frame (501) drives the constant temperature cover (401) to flip open, exposing the standard weight (11); S5, start the electric slide (802) and the mechanical gripping arm (803), the electric slide (802) moves along the slide bar (801) to make the mechanical gripping arm (803) close to the standard weight (11), and after gripping, place it on the analytical balance (13), perform balance calibration and record data in detail. If the calibration is continuous, turn off the electric push rod (502) to prevent the constant temperature cover (401) from repeatedly contacting the weight placement box (12); if the calibration is suspended, put the weight back and close the cover; S6. After the calibration is completed, the standard weight (11) is put back by the mechanical clamping arm (803), the motor (201) is started again to move the clamping plate (208) away from the analytical balance (13), and at the same time, the transmission arm (703) drives the lifting plate (704) to descend, and the electric push rod (502) is started to make the constant temperature cover (401) cover the weight placement box (12), the analytical balance (13) is taken out, the cooling fan (405) is started, nitrogen is filled, and the electric slide plate (802) is away from the constant temperature cover (401), and finally, the various parts of the equipment are maintained.

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