Calibration device and control method thereof

Abstract

The invention relates to a calibration device and a control method thereof, and relates to the technical field of water meter calibration, the calibration device comprises a calibration mechanism, the calibration mechanism comprises a water supply assembly, a detection assembly, a plurality of working platforms and a plurality of calibration pipelines, the calibration pipelines and the working platforms are arranged in a one-to-one correspondence mode, and the calibration pipelines are arranged on the corresponding working platforms; the calibration pipeline comprises a plurality of clamping pipes, the clamping pipes are sequentially arranged at intervals in the axial direction of the clamping pipes, a water meter installing position for installing a water meter is formed between every two adjacent clamping pipes, and meter clamping devices are arranged on the clamping pipes. The plurality of clamping pipes are located between the water supply assembly and the detection assembly, the water supply assembly is communicated with the adjacent clamping pipes, and the detection assembly is communicated with the adjacent clamping pipes; the calibration device further comprises a qualified product conveying line and an unqualified product conveying line. The calibration device further comprises a carrying manipulator. Through the arrangement of the plurality of calibration pipelines, calibration of water meters of different specifications can be realized.

Description

Technical Field

[0001] The present application relates to the technical field of water meter calibration, and in particular to a calibration device and a control method thereof. Background Art

[0002] In the existing water meter production line, after the water meter is produced, it needs to be calibrated to ensure that the accuracy of the water meter meets the requirements before it can be finally packaged and shipped out of the factory.

[0003] At present, the calibration of water meters in the market mainly adopts water meter calibration devices. The existing water meter calibration devices mainly include a working platform, a calibration pipeline, a water supply device and a detection device. The calibration pipeline is arranged on the working platform, and one end of the calibration pipeline is connected to the water supply device, and the other end is connected to the detection device; and the calibration pipeline is composed of a number of straight-connected pipes, which are arranged in sequence along their own axis. This makes a meter installation position formed between two adjacent straight-connected pipes, and this meter installation position can be used to install a water meter, and a meter clamp is often provided on the straight-connected pipe. When the meter installation position is installed with a water meter, the corresponding meter clamp works to clamp the water meter, and then connect the water meter to the calibration pipeline. Among them, the water supply device mainly includes a water tank, a water pump, a pressure regulating tank, etc. to improve the stable water flow; the detection device mainly uses a standard flow meter or a weighing table or a standard meter to detect the actual flow. In the calibration process of the water meter, the flow detected by the detection device is compared with the flow result detected by the water meter, so that the water meter can be calibrated.

[0004] With respect to the above-mentioned related technologies, the existing water meter calibration mechanism can only be applied to the calibration of water meters of a single specification, which results in that the existing water meter calibration mechanism has a small application scope and is difficult to meet the calibration needs of water meters of different specifications. Summary of the invention

[0005] The present application provides a calibration device and a control method thereof, the purpose of which is to increase the specifications of water meters that can be calibrated by the calibration device and improve the application scope of the calibration device.

[0006] In the first aspect, the present application provides a calibration device that adopts the following technical solution: A calibration device comprises a calibration mechanism, wherein the calibration mechanism comprises a water supply component, a detection component, a plurality of working platforms and a plurality of calibration pipelines adapted to water meters of different specifications, wherein the calibration pipelines are arranged in a one-to-one correspondence with the working platforms and are arranged on the corresponding working platforms; the calibration pipeline comprises a plurality of clamping tubes, wherein the plurality of clamping tubes are arranged in sequence along their own axial direction, and a meter installation position for installing a water meter is formed between two adjacent clamping tubes, and a meter clamp is arranged on the clamping tube, and the meter clamp drives the corresponding clamping tube to move along its own axial direction; the plurality of clamping tubes are all located between the water supply component and the detection component, and the water supply component is connected to the adjacent clamping tubes, and the detection component is connected to the adjacent clamping tubes; the calibration device also comprises a qualified conveying line for conveying qualified water meters and an unqualified conveying line for conveying unqualified water meters; the calibration device also comprises a handling manipulator, wherein the handling manipulator is located on the upper side of the calibration mechanism, the qualified conveying line and the unqualified conveying line, and the handling manipulator is used to carry the water meters.

[0007] By adopting the above technical solution, firstly, the calibration mechanism can install the water meter at the meter installation position in the calibration pipeline through the coordinated setting of the water supply component, the detection component, the work platform and the calibration pipeline, and the corresponding water meter can be clamped through the corresponding meter clamp, so that the water meter is connected to the calibration pipeline, and then after the water meter is installed at all the meter installation positions in the calibration pipeline, the water supply component supplies water to the calibration pipeline, and the water entering the calibration pipeline passes through all the water meters in turn, and then flows into the detection component, and the detection component determines the actual flow rate, and the water meter can be calibrated by comparing the actual flow rate with the indicated flow rate read on the water meter, and whether the water meter is qualified can be determined. This can realize the calibration of the water meter.

[0008] Secondly, a number of calibration pipelines are provided, each of which can be adapted to water meters of different specifications, thereby enabling the calibration mechanism of the present application to calibrate water meters of different specifications.

[0009] By setting up the transport robot, the water meter can be automatically transported to the meter installation position of the corresponding calibration pipeline according to the water meter specifications, thus realizing the automatic installation of the water meter.

[0010] After the water meters are calibrated, the handling robot can also move qualified water meters to qualified conveying lines and unqualified water meters to unqualified conveying lines according to the calibration results.

[0011] Therefore, through the setting of calibration mechanism, handling robot, qualified conveyor line and unqualified conveyor line, the water meter can be transported to the meter installation position in the appropriate calibration pipeline according to the specifications of the water meter, which can realize the calibration of different water meters, and after the calibration is completed, the water meters can be sorted according to the calibration results.

[0012] Optionally, a plurality of calibration heads are provided on the working platform, the calibration heads are arranged in one-to-one correspondence with the mounting positions, and the calibration heads are located directly above the corresponding mounting positions, and a mobile manipulator for carrying the calibration heads is provided between the calibration heads and the working platform.

[0013] By adopting the above technical solution, the calibration head can be moved to the top of the corresponding meter installation position under the drive of the mobile manipulator. Therefore, when it is necessary to install or remove the water meter, the calibration head is driven by the mobile manipulator to leave from the top of the corresponding meter installation position to prevent the presence of the calibration head from interfering with the installation or removal of the corresponding water meter. When a water meter is installed at the meter installation position, the calibration head is driven by the mobile manipulator to the top of the corresponding water meter, and the calibration head can read the detection flow of the corresponding water meter. Such a structural setting facilitates automatic reading of data on the water meter.

[0014] Optionally, a coaxial detector is provided on several of the clamping tubes, and the coaxial detector includes a laser emitter and a laser receiver, the laser emitter is coaxially connected to the laser receiver, and the emitting end of the laser emitter is located on the side of the laser emitter away from the laser receiver, and the receiving end of the laser receiver is located on the end of the laser receiver away from the laser emitter; and several of the coaxial detectors located on the same working platform are coaxially arranged.

[0015] By adopting the above technical solution, the coaxial detector can emit laser light through the laser transmitter and can receive laser light through the laser receiver. Therefore, when coaxial detectors are installed on several clamping tubes, and the several coaxial detectors are coaxially arranged, the laser light emitted by the laser transmitter is received by the laser receiver in the next coaxial detector, and the optical path of the laser light can be determined at this time. When the optical paths of several lasers are colinearly arranged, it means that the several clamping tubes are coaxial, otherwise, the several clamping tubes are not coaxial. Such a structural arrangement can detect whether the coaxiality of several clamping tubes is abnormal through the cooperation of several coaxial detectors.

[0016] Optionally, coaxial detectors are provided at both ends of the clamping tube, and the two coaxial detectors are coaxially arranged.

[0017] By adopting the above technical solution, by arranging coaxial detectors at both ends of the clamping tube, it is possible to detect whether the two ends of the clamping tube are coaxial. When the ends of the clamping tube are deformed due to long-term use or accidental collision, it is possible to detect that the two ends of the clamping tube are not coaxial, which makes it easy to find and replace the deformed clamping tube in time.

[0018] Optionally, the coaxial detector also includes an extension rod and a mounting ring, wherein the mounting ring is sleeved on the outer side of the corresponding clamping tube, one end of the extension rod is connected to the mounting ring, and the other end is extended in a direction away from the mounting ring, and the laser transmitter and the laser receiver are both arranged on the extension rod.

[0019] By adopting the above technical solution, the coaxial detector can be installed on the clamping tube through the setting of the mounting ring, and the setting of the extension tube can extend the distance between the mounting ring and the laser emitter, ensuring that the optical path of the laser between two adjacent coaxial detectors will not be blocked.

[0020] Optionally, the extension rod includes a fixed rod and a movable rod, the length direction of the fixed rod is arranged along the length direction of the movable rod, and the movable rod is slidably connected to the fixed rod along its own length direction, and the fixed rod is provided with a locking piece capable of fixing the movable rod; one end of the fixed rod away from the movable rod is connected to the mounting ring, and the laser transmitter and the laser receiver are both arranged at the end of the movable rod away from the fixed rod.

[0021] By adopting the above technical solution, since the fixed rod is slidably connected to the movable rod, and the locking piece can lock the fixed rod and the movable rod, the length of the extension rod can be freely adjusted, thereby making the length of the extension rod meet actual use needs.

[0022] Optionally, the clamping tube includes a first tube, an intermediate tube and a second tube, and the first tube, the intermediate tube and the second tube are coaxially arranged in sequence, one end of the intermediate tube is sleeved on the outside of the first tube, and the other end is sleeved on the outside of the second tube, the first tube and the second tube are both slidably connected to the intermediate tube along their own axes, and the intermediate tube is connected to the corresponding working platform; two clamps are arranged on the intermediate tube, one of the clamps is used to drive the first tube to move along its own axis, and the other clamp drives the second tube to move along its own axis.

[0023] By adopting the above technical solution and the structural setting of the clamping tube, the first tube and the second tube can be independently extended and retracted, thereby enabling each meter installation position to independently clamp the water meter.

[0024] In a second aspect, a control method of a calibration device provided in the present application adopts the following technical solution: A control method for a calibration device, wherein a water meter is calibrated by using the above-mentioned calibration device, comprises the following steps: S1. Water meter installation; S11. When producing water meters on a water meter production line, the water meter code is bound to the water meter pallet code. When the water meter production is completed, the water meter pallet with the water meter is moved to the loading station; S12, scanning the water meter tray code on the water meter tray at the loading station to obtain water meter information, and according to the obtained water meter information, the water meter is moved to the corresponding meter installation position in the calibration pipeline by a moving manipulator; S2, calibration head installation; S21, when the water meter is moved to the corresponding meter installation position, the mobile manipulator moves the corresponding calibration head to the top of the corresponding meter installation position, and at this time, the calibration head is installed on the upper side of the water meter; S22, when the calibration head is installed, the meter clamp corresponding to the meter installation position is started to clamp the water meter; S3, repeat S1 and S2 until all meter installation positions in the corresponding calibration pipeline are installed with water meters; S4, automatic calibration of water meter; S41. When all the meter installation positions in the calibration mechanism are installed with water meters, the calibration mechanism is started, water flows into the corresponding calibration pipelines, and the water flows through all the water meters in sequence, and automatic calibration begins; S42, after the calibration is completed, the calibration result of the corresponding calibration head and the parameters of the corresponding water meter are recorded, and the corresponding water meter is determined to be qualified or unqualified according to the calibration result of the calibration head; S5, qualified water meter disassembly; S51, resetting the calibration head corresponding to the qualified water meter, disassembling the qualified water meter, and then transporting the disassembled water meter to the qualified conveying line; S52, repeat step S51, and sequentially move all qualified water meters to the qualified conveying line; S6, repeating steps S1 to S5 to recalibrate the unqualified water meter; S7, when the recalibration result of the unqualified water meter in step S6 is unqualified, the water meter that fails the repeated calibration is dismantled; S71, resetting the calibration head corresponding to the water meter that failed the repeated calibration, disassembling the water meter that failed the repeated calibration, and then transporting the disassembled water meter to the failed conveying line; S72. Repeat step S71 to sequentially move all water meters that have failed repeated calibration to the failed conveying line.

[0025] By adopting the above technical solution and the above control method, it is possible to realize fully automatic detection and sorting of water meters of different specifications, and to repeat calibration of unqualified water meters to ensure the accuracy of water meter calibration results. This can improve the convenience and accuracy of water meter calibration.

[0026] Optionally, in step S6, the unqualified water meter is calibrated repeatedly for multiple times.

[0027] By adopting the above technical solution, unqualified water meters are calibrated repeatedly to ensure the accuracy of the water meter calibration results.

[0028] Optionally, in step S41, when water is passed into the corresponding calibration pipeline, a small flow of water is passed first, and the pressure in the calibration pipeline is detected by the pressure sensor in the calibration mechanism. When the pressure is normal, automatic calibration is performed; when the pressure is abnormal, the calibration mechanism is closed.

[0029] By adopting the above technical solution, before calibrating the water meter, the pressure in the calibration pipeline is firstly detected to ensure that the calibration pipeline is in a normal state, so as to prevent the calibration result of the water meter from being affected by abnormalities in the calibration pipeline.

[0030] In summary, the present application includes at least one of the following beneficial technical effects: 1. This application can realize the calibration of water meters of different specifications by setting up several calibration pipelines.

[0031] 2. This application can realize automatic transportation, calibration and sorting of water meters through the coordinated setting of a handling robot, a calibration mechanism, a qualified conveyor line, an unqualified conveyor line and a calibration head.

[0032] 3. This application can realize the coaxiality detection of the calibration pipeline through the coordinated setting of several coaxial detectors. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the calibration device of Example 1 of the present application.

[0034] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A.

[0035] Figure 3 It is a schematic diagram of the overall structure of the clamping tube of Example 2 of the present application.

[0036] Figure 4 It is a schematic diagram of the cross-sectional structure of the clamping tube of Example 2 of the present application.

[0037] Figure 5 yes Figure 4 A partial enlarged schematic diagram of part B.

[0038] Figure 6 It is a schematic diagram of the cross-sectional structure of the clamping tube at another position of Example 2 of the present application.

[0039] Figure 7 yes Figure 4 A partial enlarged schematic diagram of part C in the middle.

[0040] Figure 8 It is a schematic diagram of the overall structure of the coaxial detector of Example 3 of the present application.

[0041] In the figure, 100, calibration mechanism; 200, handling manipulator; 1, working platform; 2, calibration pipeline; 21, clamping tube; 211, first tube; 212, middle tube; 2121, second hole; 213, second tube; 214, threaded hole; 22, meter clamp; 3, calibration head; 4, mobile manipulator; 5, mounting seat; 6, mounting tube; 61, first half tube; 62, second half tube; 621, first hole; 622, first threaded hole Bolt; 7, two-axis mobile platform; 8, coaxial detector; 81, mounting ring; 811, through hole; 812, second bolt; 82, extension rod; 821, fixed rod; 822, movable rod; 823, sliding slot; 824, locking piece; 8241, fixing screw; 8242, fixing hole; 8243, locking hole; 83, laser transmitter; 84, laser receiver; 9, anti-rotation assembly; 91, limit block; 92, limit groove. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1 -Attached Figure 8 , further details of this application are given.

[0043] Embodiment 1: A calibration device, referring to Figure 1 , including a calibration mechanism 100, a qualified conveying line, an unqualified conveying line and a handling robot 200, and the calibration mechanism 100, the qualified conveying line and the unqualified conveying line are all located at the lower side of the handling robot 200. In this embodiment, the handling robot 200 adopts the cooperation of a truss and a robot, so that the handling robot 200 can move on the calibration mechanism 100, the qualified conveying line and the unqualified conveying line, and then can realize the handling of water meters between the calibration mechanism 100, the qualified conveying line and the unqualified conveying line.

[0044] Reference Figure 1 and Figure 2 The calibration mechanism 100 includes a water supply component, a detection component, a plurality of working platforms 1 and a plurality of calibration pipelines 2. The plurality of working platforms 1 are arranged in parallel with each other, and the plurality of working platforms 1 are arranged at intervals along their own width direction. The calibration pipelines 2 are arranged one by one corresponding to the working platforms 1, and the calibration pipelines 2 are arranged on the corresponding working platforms 1.

[0045] In this embodiment, different calibration pipelines 2 are adapted to water meters of different calibers, which enables the transport robot 200 to transport water meters of corresponding calibers to the corresponding calibration pipeline 2 to calibrate the water meters. This can increase the specifications of water meters that can be calibrated by the calibration device and improve the scope of application of the calibration device.

[0046] Reference Figure 1 and Figure 2 The calibration pipeline 2 includes a plurality of clamping tubes 21, the axial direction of the clamping tubes 21 is arranged along the length direction of the corresponding working platform 1, and the plurality of clamping tubes 21 are arranged in sequence along their own axial direction, and a meter installation position is formed between two adjacent clamping tubes 21. The calibration pipeline 2 is located between the water supply component and the detection component, and the water supply component is connected to the adjacent clamping tubes 21, and the detection component is connected to the adjacent clamping tubes 21. The clamping tube 21 is slidably connected to the corresponding working platform 1 along its own axial direction, and a meter clamp 22 is provided on the working platform 1. In this embodiment, the meter clamp 22 adopts a cylinder, and the driving direction of the meter clamp 22 is arranged along the axial direction of the clamping tube 21, and one end of the meter clamp 22 is connected to the working platform 1, and the other end is connected to the corresponding clamping tube 21.

[0047] The water meter is loaded into the meter loading position by the handling manipulator 200, so that the water meter can be loaded into all the meter loading positions. After the water meter is loaded into the corresponding meter loading position, the meter clamp 22 drives the clamping tube 21 to move, thereby realizing the clamping of all the water meters, so that all the water meters are connected to the corresponding calibration pipeline 2. At this time, the water supply component supplies water to the corresponding calibration pipeline 2, so that the water can flow through all the water meters in sequence, meeting the calibration requirements of the water meters. After the water flowing through the corresponding calibration pipeline 2 passes through all the water meters in sequence, the water will flow into the detection component, and the detection component will detect the flow rate, and then compare the reading on the water meter with the detection result of the detection component. When the error value is within the allowable error range, the water meter is qualified, otherwise, the water meter is unqualified.

[0048] In this embodiment, the water supply component realizes stable water supply through a water tank, a water pump and a pressure-stabilizing tank. The detection component can use a standard flow meter or a standard water meter or a weighing platform to realize high-precision detection of flow.

[0049] Reference Figure 2 , a plurality of calibration heads 3 are arranged on the working platform 1, and the calibration heads 3 are arranged one-to-one corresponding to the meter installation positions, and the calibration heads 3 are located directly above the corresponding meter installation positions. A plurality of mobile manipulators 4 are arranged on the working platform 1, and the mobile manipulators 4 are arranged one-to-one corresponding to the calibration heads 3. In this embodiment, the calibration head 3 is a pulse collector, and the water meter is an electromagnetic water meter. The pulse collector can collect the pulse signal in the electromagnetic water meter, and then the flow of the corresponding water meter can be obtained according to the collected pulse signal.

[0050] When a water meter is installed at the meter installation position, the calibration head 3 is driven by the mobile manipulator 4 to move to the top of the corresponding water meter, and the calibration head 3 can obtain the flow of the corresponding water meter. When the water meter needs to be removed or installed, the calibration head 3 is driven by the mobile manipulator 4 to move away from the top of the corresponding meter installation position to prevent the presence of the calibration head 3 from interfering with the installation or removal of the corresponding water meter.

[0051] The implementation principle of the embodiment of the present application is as follows: after the water meter production line has finished producing water meters, the handling manipulator 200 can carry the water meters to the corresponding calibration pipeline 2, so that the water meters are loaded into the corresponding meter installation positions, and the water meters can be clamped by the corresponding meter clamp 22, so that the water meters are connected to the calibration pipeline 2. After all the meter installation positions on the calibration pipeline 2 are installed with water meters, the water supply component supplies water to the corresponding calibration pipeline 2, and the water flows into the detection component after passing through all the water meters in turn. The detection component detects the flow in the calibration pipeline 2, and automatically obtains the corresponding water meter flow through the calibration head 3. The detection result of the calibration head 3 is compared with the detection result of the detection component. When the error value is within the error allowable range, the water meter is qualified, otherwise, the water meter is unqualified. After the calibration is completed, the handling manipulator 200 can carry the qualified water meter to the qualified conveying line and the unqualified water meter to the unqualified conveying line.

[0052] This embodiment also discloses a control method of a calibration device, which uses the calibration device to calibrate a water meter, including the following steps: S1. Water meter installation.

[0053] S11. When producing water meters on a water meter production line, the water meter code is bound to the water meter pallet code. When the water meter production is completed, the water meter pallet with the water meter is transported to the loading station.

[0054] S12. When the water meter tray with the water meter is located at the loading station, scan the water meter tray code on the water meter tray at the loading station to obtain the information of the water meter on the water meter tray, and according to the obtained water meter information, use the transport robot 200 to transport the water meter to the corresponding meter loading position in the calibration pipeline 2.

[0055] Specifically, the water meter pallet code is scanned by a scanner at the loading station to obtain water meter information. In this embodiment, the water meter information obtained is the caliber of the water meter, and the obtained water meter information is sent to the host computer. The host computer transports the corresponding water meter to the calibration mechanism 100 adapted to the corresponding water meter caliber through the transport manipulator 200 according to the obtained water meter caliber. Specifically, the transport manipulator 200 transports the water meter to the vacant meter installation position in the corresponding calibration pipeline 2.

[0056] S2. Install the calibration head 3 on the water meter.

[0057] S21. After the water meter is moved to the corresponding meter installation position, the mobile manipulator 4 moves the corresponding calibration head 3 to the top of the corresponding meter installation position. At this time, the calibration head 3 is installed on the upper side of the water meter.

[0058] S22 , when the calibration head 3 is installed, the meter clamp 22 corresponding to the meter installation position is started to clamp the water meter and connect the water meter to the calibration pipeline 2 .

[0059] Specifically, in this embodiment, the calibration head 3 is a pulse collector, and the water meter is an electromagnetic water meter. The pulse collector can collect pulse signals in the electromagnetic water meter, and then the detected flow of the water meter can be obtained according to the collected pulse signals.

[0060] S3. Repeat S1 and S2 until all meter installation positions in the corresponding calibration pipeline 2 are installed with water meters.

[0061] Specifically, when installing the water meter, the water meter is installed in order from small to large according to the numbers of the corresponding meter installation positions in the calibration pipeline 2. In this embodiment, the calibration pipeline 2 has a total of five meter installation positions.

[0062] When there is an empty meter position in the corresponding calibration pipeline 2, the water meter cannot be calibrated at this time. If the water meter needs to be automatically calibrated at this time, the handling manipulator 200 grabs the fake water meter, and the fake water meter fills the empty meter position in the calibration pipeline 2 until all the empty meter positions are filled with fake water meters, and the fake water meter does not need to be installed with the calibration head 3. Through the cooperation of several fake water meters, the calibration pipeline 2 can be closed, and then the automatic calibration of the water meter can be realized.

[0063] S4. Automatic calibration of water meter.

[0064] S41, when all the meter installation positions in the calibration pipeline 2 are installed with water meters, the calibration mechanism 100 is started, and water flows into the corresponding calibration pipeline 2, and the water flows through all the water meters in sequence, and automatic calibration begins; Specifically, when the calibration mechanism 100 is just started, a small flow of water is first introduced into the calibration pipeline 2, and the pressure in the calibration pipeline 2 is detected by the pressure sensor in the calibration mechanism 100. When the pressure is normal, automatic calibration is performed; when the pressure is abnormal, the calibration mechanism 100 is closed.

[0065] S42 , after the calibration is completed, the calibration result of the corresponding calibration head 3 and the parameters of the corresponding water meter are recorded, and whether the corresponding water meter is qualified or unqualified is determined according to the calibration result of the calibration head 3 .

[0066] Specifically, the calibration result of the calibration head 3 is compared with the standard result to determine the detection error value. When the error value is within the allowable error range, the corresponding water meter calibration is qualified; otherwise, when the error value exceeds the error range, the corresponding water meter calibration is unqualified.

[0067] S5. Dismantle qualified water meters.

[0068] S51, resetting the calibration head 3 corresponding to the qualified water meter, disassembling the qualified water meter, and then transporting the disassembled water meter to the qualified conveying line.

[0069] Specifically, S511, the calibration head 3 corresponding to the upper side of the qualified water meter is reset by moving the manipulator 4, so that the calibration head 3 is moved away from the upper side of the corresponding qualified water meter.

[0070] S512, the calibration pipeline 2 loosens the corresponding qualified water meter to achieve the disassembly of the qualified water meter.

[0071] S513, the qualified water meter is transported to the qualified conveying line by the transporting robot 200, and the qualified conveying line transports the qualified water meter.

[0072] S52. Repeat step S51 to sequentially transport all qualified water meters to qualified conveying lines.

[0073] S6. Repeat steps S1 to S5 to recalibrate the unqualified water meter.

[0074] Specifically, the unqualified water meter can be calibrated repeatedly for multiple times according to actual needs to ensure the accuracy of the calibration result. In this implementation, the unqualified water meter is calibrated repeatedly once, that is, the unqualified water meter is calibrated twice in total.

[0075] S7. When the repeated calibration result of the unqualified water meter in step S6 is unqualified, the water meter that fails the repeated calibration is dismantled.

[0076] Specifically, in this embodiment, since step S6 performs repeated calibration only once, when judging that the calibration result of the water meter is unqualified, it is required that both the first calibration result and the repeated calibration result of the water meter are unqualified.

[0077] S71, dismantle the calibration head 3 and the corresponding water meter whose repeated calibration results are unqualified respectively by the transport manipulator 200, transport the dismantled calibration head 3 to a designated location, and transport the dismantled water meter to an unqualified conveying line; Specifically, step S71 is the same as step S51 , and step S71 realizes the disassembly of the water meter with unqualified repeated calibration results and the resetting of the corresponding calibration head 3 .

[0078] S72. Repeat step S71 to sequentially move all water meters that have failed repeated calibration to the failed conveying line.

[0079] The pipeline calibration control system that implements the above control method is as follows: The pipeline calibration control system includes a database, a host computer, a switch, a PLC calibration control machine and a PLC transport control machine. Data is exchanged between the database and the host computer; the host computer obtains data from the PLC calibration control machine and the PLC transport control machine, and the host computer releases the corresponding control instructions to the PLC calibration control machine and the PLC transport control machine; the switch realizes instruction interaction; the PLC transport control machine moves the water meter to the meter installation position of the corresponding calibration pipeline 2 according to the instructions of the host computer; the PLC calibration control machine controls the corresponding calibration pipeline 2 to start the water meter calibration according to the instructions of the host computer, and transmits the calibration structure data to the host computer.

[0080] Database: The database stores all the three-dimensional coordinate data of all the meter installation positions in the entire calibration device for easy access by the host computer. In addition, the database stores all the process and result data of the host computer calibrating the water meter.

[0081] Host computer: responsible for coordinating and dispatching the PLC calibration control machine and the PLC handling control machine; monitoring and directing the start, stop, pulse collection of the calibration head 3 and other data collection of the calibration pipeline 2 corresponding to the PLC calibration control machine; monitoring and directing the actions of the handling manipulator 200 corresponding to the PLC handling control machine, and issuing the action instructions and corresponding coordinate data of the handling manipulator 200 according to production requirements; using the Bluetooth module to read and write the parameters of the corresponding water meter according to the pipeline status used on site to complete the calibration. Among them, the setting of the Bluetooth module makes it easier for the host computer to read the parameters of the calibrated water meter in the calibration pipeline 2 corresponding to each PLC calibration control machine.

[0082] PLC calibration control machine: responsible for executing the commands of the host computer, coordinating and controlling the calibration head 3, cylinder, meter clamp 22, inverter, servo driver and other actuators on the corresponding calibration pipeline 2 according to different commands to work according to the specified requirements, so that the corresponding calibration pipeline 2 can perform the water meter calibration. In addition, the PLC calibration control machine will also feed back the status of all electrical components collected on the corresponding calibration pipeline 2 to the host computer in real time.

[0083] PLC handling control machine: responsible for executing the instructions of the host computer, controlling the handling robot 200 to transport and install the water meter on the water meter production line to the corresponding installation position of the calibration pipeline 2, to achieve the installation of the water meter, and after the water meter is installed, feedback the water meter installation structure to the host computer.

[0084] The implementation principle of the embodiment of the present application is: through the above control method, the water meter can be fully automatically detected and sorted, and the unqualified water meters can be repeatedly calibrated to ensure the accuracy of the water meter calibration results. This can improve the convenience of water meter calibration.

[0085] Embodiment 2: A calibration device, referring to Figure 3 and Figure 4 The difference between this embodiment and the first embodiment is that a mounting seat 5 is arranged between the clamping tube 21 and the corresponding working platform 1, a mounting tube 6 is arranged on the upper side of the mounting seat 5, and the mounting tube 6 is coaxially sleeved on the outer side of the clamping tube 21, and a two-axis moving platform 7 is arranged between the lower side of the mounting seat 5 and the corresponding working platform 1. The two-axis moving platform 7 adopts a linear module driven by two servo motors arranged vertically to each other. The two-axis moving platform 7 can adjust the position of the mounting seat 5, and then facilitate the adjustment of the position of the clamping tube 21, so that the position of the clamping tube 21 meets the requirements.

[0086] Reference Figure 4 and Figure 5 The clamping tube 21 includes a first tube 211, an intermediate tube 212 and a second tube 213. The first tube 211, the intermediate tube 212 and the second tube 213 are coaxially arranged in sequence, and one end of the intermediate tube 212 is sleeved on the outside of the first tube 211, and the other end is sleeved on the outside of the second tube 213, and the first tube 211 and the second tube 213 are both slidably connected to the inner side wall of the intermediate tube 212 along their own axis. The mounting tube 6 is sleeved on the outside of the intermediate tube 212, and the outer side walls of the first tube 211 and the second tube 213 are both slidably connected to the inner side wall of the mounting tube 6 or spaced apart. The arrangement of the mounting tube 6 realizes the connection between the clamping tube 21 and the mounting seat 5.

[0087] Reference Figure 3 A meter clamp 22 is provided between the first tube 211 and the mounting seat 5 and between the second tube 213 and the mounting seat 5. In this embodiment, the meter clamp 22 is a cylinder. The meter clamp 22 is located outside the mounting tube 6, and one end of the meter clamp 22 is connected to the mounting seat 5, and the other end is connected to the corresponding first tube 211 or second tube 213. Such a structural setting enables both ends of each clamping tube 21 to be independently retracted, thereby enabling each meter mounting position to independently clamp a water meter.

[0088] Reference Figure 3 and Figure 5 The mounting tube 6 includes a first half tube 61 and a second half tube 62. The lower side of the first half tube 61 is fixedly connected to the mounting seat 5. The second half tube 62 is located on the upper side of the first half tube 61 in the vertical direction. The first half tube 61 and the second half tube 62 are arranged opposite to each other in the vertical direction. The second half tube 62 is connected to the first half tube 61 by bolts, and a mounting hole is formed between the first half tube 61 and the second half tube 62. The clamping tube 21 is located between the first half tube 61 and the second half tube 62, and the clamping tube 21 is plugged into the mounting hole. The structural setting of the mounting tube 6 facilitates the disassembly and installation of the corresponding clamping tube 21.

[0089] Reference Figure 4 and Figure 5The outer wall of the second half tube 62 is provided with a first hole 621, the middle tube 212 is provided with a second hole 2121, and the first hole 621 is communicated with the second hole 2121, a first bolt 622 is coaxially inserted in the first hole 621, and the first bolt 622 is coaxially inserted and matched with the second hole 2121. The coordinated arrangement of the first hole 621, the second hole 2121 and the first bolt 622 increases the installation stability between the clamping tube 21 and the mounting tube 6, and also prevents the clamping tube 21 and the mounting tube 6 from rotating relative to each other.

[0090] Reference Figure 3 The clamping tube 21 further comprises a coaxial detection assembly, and the coaxial detection assembly comprises a plurality of coaxial detectors 8. The coaxial detectors 8 are all installed on the plurality of clamping tubes 21, and the coaxial detectors 8 on the plurality of clamping tubes 21 in the calibration pipeline 2 are all coaxially arranged.

[0091] Through the cooperation of several coaxial detectors 8, it is possible to detect whether several clamping tubes 21 in the same calibration pipeline 2 are coaxial, and at this time, the coaxiality of several clamping tubes 21 can be adjusted through the cooperation of the corresponding two-axis mobile platform 7. Before each water meter calibration, the coaxiality of the calibration pipeline 2 is detected by several coaxial detectors 8. When the coaxiality detection result does not meet the requirements, the coaxiality adjustment is achieved through the cooperation of several two-axis mobile platforms 7 so that the coaxiality meets the requirements.

[0092] Reference Figure 3 Two coaxial detectors 8 are coaxially arranged on each clamping tube 21 , and the two coaxial detectors 8 are respectively arranged on the corresponding first tube 211 and the second tube 213 .

[0093] Through the two coaxial detectors 8 on the same clamping tube 21, it is possible to detect whether the first tube 211 and the second tube 213 located on the same clamping tube 21 are coaxial. On the one hand, it can be ensured that when the clamping tube 21 is assembled, the coaxiality of the first tube 211 and the second tube 213 can meet the requirements; on the other hand, after the clamping tube 21 is used for a long time, the first tube 211 and the second tube 213 may be deformed. At this time, the coaxial detector 8 can detect whether the first tube 211 or the second tube 213 is deformed, thereby facilitating timely replacement of the new clamping tube 21.

[0094] Reference Figure 3 and Figure 6The coaxial detector 8 includes a mounting ring 81, an extension rod 82, a laser emitter 83 and a laser receiver 84. The mounting ring 81 is sleeved on the outer side of the corresponding first tube 211 or the second tube 213. The extension rod 82 is arranged in the vertical direction. The lower end of the extension rod 82 is connected to the mounting ring 81. The laser emitter 83 is coaxially connected to the laser receiver 84, and the laser emitter 83 and the laser receiver 84 are both arranged at the upper end of the extension rod 82. The axial direction of the laser emitter 83 is arranged along the axial direction of the corresponding first tube 211 or the second tube 213. The emitting end of the laser emitter 83 is located on the side of the laser emitter 83 away from the laser receiver 84, and the receiving end of the laser receiver 84 is located at the end of the laser receiver 84 away from the laser emitter 83.

[0095] The laser transmitter 83 can emit laser and the laser receiver 84 can receive laser. Therefore, when the laser emitted by the laser transmitter 83 is received by the laser receiver 84 in the next coaxial detector 8, the optical path of the laser can be determined, and then the coaxiality of the pipeline between the two coaxial detectors 8 can be determined.

[0096] Reference Figure 6 and Figure 7 The outer wall of the mounting ring 81 is penetrated with a plurality of through holes 811, and the outer walls of the first tube 211 and the second tube 213 are both provided with a plurality of threaded holes 214. When the mounting ring 81 is sleeved onto the corresponding first tube 211 or the second tube 213, the through holes 811 are arranged in one-to-one correspondence with the threaded holes 214 on the first tube 211 or the second tube 213, the through holes 811 are coaxially connected with the corresponding threaded holes 214, the through holes 811 are plugged with the second bolts 812, the second bolts 812 are plugged and matched with the corresponding threaded holes 214, and the second bolts 812 are connected with the inner wall of the corresponding threaded holes 214 by threads.

[0097] The coordinated arrangement of the through hole 811, the threaded hole 214 and the second bolt 812 can realize the connection between the mounting ring 81 and the corresponding first tube 211 or the second tube 213, and can prevent the mounting ring 81 and the corresponding first tube 211 or the second tube 213 from rotating, thereby ensuring the accuracy of detection by the coaxial detector 8.

[0098] Reference Figure 5 An anti-rotation component 9 is disposed between the outer wall of the first tube 211 and the inner wall of the middle tube 212 and between the outer wall of the second tube 213 and the inner wall of the middle tube 212. This embodiment is described by taking the anti-rotation component 9 between the first tube 211 and the middle tube 212 as an example.

[0099] Reference Figure 5The anti-rotation assembly 9 includes a plurality of limit blocks 91, which are arranged on the inner side wall of the intermediate tube 212. The limit blocks 91 are arranged in sequence and evenly spaced along the circumference of the intermediate tube 212, and the length direction of the limit blocks 91 is arranged along the axial direction of the intermediate tube 212. A plurality of limit grooves 92 are provided on the outer side wall of the first tube 211, and the length direction of the limit grooves 92 is arranged along the axial direction of the first tube 211. The limit grooves 92 penetrate one end of the first tube 211 toward the second tube 213 along their own length direction. The limit grooves 92 are arranged one by one with the limit blocks 91, and the limit blocks 91 are plugged and matched with the corresponding limit grooves 92. The limit blocks 91 are slidably connected with the inner side wall of the corresponding limit grooves 92 along their own length direction.

[0100] The anti-rotation component 9 is provided to prevent the first tube 211 and the second tube 213 from rotating relative to the intermediate tube 212 while ensuring that the meter clamp 22 can drive the corresponding first tube 211 or the second tube 213 to work normally, thereby ensuring the accuracy of detection by the coaxial detector 8.

[0101] The implementation principle of the embodiment of the present application is: since both ends of each clamping tube 21 can be independently extended and retracted, each meter position can be independently clamped with a water meter, so that the meter installation positions in the same calibration pipeline 2 can freely choose the order of installing the water meter according to actual needs. Before the calibration mechanism 100 calibrates the water meter, through the cooperation of a plurality of coaxial detectors 8 and a plurality of two-axis mobile platforms 7, it can detect the coaxiality of a plurality of clamping tubes 21, and can automatically adjust the coaxiality to ensure that the coaxiality meets the requirements. And when performing the coaxiality detection, the two coaxial detectors 8 located on the same clamping tube 21 work, and can detect the coaxiality of the two ends of the clamping tube 21.

[0102] This embodiment also discloses a control method for a calibration device. The difference between this embodiment and embodiment 1 is that the following steps are provided before step S1: S0. The calibration mechanism 100 performs self-inspection.

[0103] Specifically, S01 , the two coaxial detectors 8 on each clamping tube 21 work to detect the coaxiality of the two ends of the clamping tube 21 .

[0104] S02, the coaxial detectors 8 on the multiple clamping tubes 21 in the same calibration pipeline 2 work to detect the coaxiality between the multiple clamping tubes 21. When there is an error in the coaxiality between the clamping tubes 21, the position of the clamping tube 21 is fine-tuned by the corresponding two-axis moving platform 7 to ensure that the coaxiality of the clamping tube 21 meets the requirements.

[0105] In the above steps S01 and S02, when the coaxiality is abnormal and cannot be corrected actively, an error is reported.

[0106] Embodiment 3: A calibration device, referring to Figure 8 The difference between this embodiment and embodiment 2 is that the extension rod 82 includes a fixed rod 821 and a movable rod 822, the fixed rod 821 and the movable rod 822 are both arranged in the vertical direction, the lower end of the fixed rod 821 is connected to the mounting ring 81, and a sliding slot 823 is provided at the upper end of the fixed rod 821, the lower end of the movable rod 822 is plugged into the sliding slot 823, and the movable rod 822 is slidably connected to the inner wall of the sliding slot 823 along its own length direction, and the laser transmitter 83 and the laser receiver 84 are arranged at the upper end of the movable rod 822.

[0107] Reference Figure 8 A locking member 824 is also provided between the fixed rod 821 and the movable rod 822. The locking member 824 includes a fixing screw 8241. A plurality of fixing holes 8242 are provided on the side wall of the movable rod 822. The plurality of fixing holes 8242 are arranged in sequence along the vertical direction. A plurality of scales are provided on the movable rod 822. The scales correspond to the fixing holes 8242 one by one. The axes of the scales and the corresponding fixing holes 8242 are located in the same horizontal plane. A locking hole 8243 is provided on the side wall of the fixed rod 821. The locking hole 8243 is connected to the sliding slot 823. The fixing hole 8242 is coaxially connected to the locking hole 8243. The fixing screw 8241 is plugged into the locking hole 8243. The fixing screw 8241 is plugged into the corresponding fixing hole 8242.

[0108] The overall length of the extension rod 82 can be changed by sliding the movable rod 822 , and the length of the extension rod 82 can be locked by the fixing screw 8241 , so that the length of the extension rod 82 can meet actual use requirements.

[0109] The implementation principle of the embodiment of the present application is: through the adjustable setting of the extension rod 82, the length of the extension rod 82 can be freely adjusted according to actual needs, so that the length of the extension rod 82 can meet the actual use needs.

[0110] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A calibration device, characterized in that: include: A calibration mechanism (100), the calibration mechanism (100) comprising a water supply component, a detection component, a plurality of working platforms (1), and a plurality of calibration pipelines (2) adapted for water meters of different specifications, the calibration pipelines (2) being arranged in a one-to-one correspondence with the working platforms (1), and the calibration pipelines (2) being arranged on the corresponding working platforms (1); The calibration pipeline (2) comprises a plurality of clamping tubes (21), the plurality of clamping tubes (21) being arranged in sequence and spaced apart along their own axial direction, a meter installation position for installing a water meter is formed between two adjacent clamping tubes (21), a meter clamp (22) is arranged on the clamping tube (21), and the meter clamp (22) drives the corresponding clamping tube (21) to move along its own axial direction; The plurality of clamping tubes (21) are all located between the water supply assembly and the detection assembly, and the water supply assembly is in communication with an adjacent clamping tube (21), and the detection assembly is in communication with an adjacent clamping tube (21); The calibration device also includes a qualified conveying line for conveying qualified water meters and an unqualified conveying line for conveying unqualified water meters; The calibration device further comprises a transport robot (200), the transport robot (200) being located above the calibration mechanism (100), the qualified conveying line and the unqualified conveying line, and the transport robot (200) being used to transport the water meter.

2. A calibration device according to claim 1, characterized in that: A plurality of calibration heads (3) are arranged on the working platform (1), the calibration heads (3) being arranged in one-to-one correspondence with the table installation positions, and the calibration heads (3) are located directly above the corresponding table installation positions, and a mobile manipulator (4) for carrying the calibration heads (3) is arranged between the calibration heads (3) and the working platform (1).

3. A calibration device according to claim 1, characterized in that: A coaxial detector (8) is provided on each of the plurality of clamping tubes (21), wherein the coaxial detector (8) comprises a laser emitter (83) and a laser receiver (84), wherein the laser emitter (83) is coaxially connected to the laser receiver (84), and an emitting end of the laser emitter (83) is located on a side of the laser emitter (83) facing away from the laser receiver (84), and a receiving end of the laser receiver (84) is located on an end of the laser receiver (84) facing away from the laser emitter (83); and the plurality of coaxial detectors (8) located on the same working platform (1) are coaxially arranged.

4. A calibration device according to claim 3, characterized in that: Coaxial detectors (8) are provided at both ends of the clamping tube (21), and the two coaxial detectors (8) are coaxially arranged.

5. A calibration device according to claim 3, characterized in that: The coaxial detector (8) further comprises an extension rod (82) and a mounting ring (81), wherein the mounting ring (81) is sleeved on the outer side of the corresponding clamping tube (21), one end of the extension rod (82) is connected to the mounting ring (81), and the other end is extended in a direction away from the mounting ring (81), and the laser transmitter (83) and the laser receiver (84) are both arranged on the extension rod (82).

6. A calibration device according to claim 5, characterized in that: The extension rod (82) comprises a fixed rod (821) and a movable rod (822); the length direction of the fixed rod (821) is arranged along the length direction of the movable rod (822); the movable rod (822) is slidably connected to the fixed rod (821) along its length direction; and the fixed rod (821) is provided with a locking piece (824) capable of fixing the movable rod (822); One end of the fixed rod (821) away from the movable rod (822) is connected to the mounting ring (81), and the laser transmitter (83) and the laser receiver (84) are both arranged on one end of the movable rod (822) away from the fixed rod (821).

7. A calibration device according to claim 1, characterized in that: The clamping tube (21) comprises a first tube (211), an intermediate tube (212) and a second tube (213); the first tube (211), the intermediate tube (212) and the second tube (213) are coaxially arranged in sequence; one end of the intermediate tube (212) is sleeved on the outside of the first tube (211), and the other end is sleeved on the outside of the second tube (213); the first tube (211) and the second tube (213) are both slidably connected to the intermediate tube (212) along their own axes; and the intermediate tube (212) is connected to the corresponding working platform (1); Two clamps (22) are arranged on the intermediate tube (212), one of the clamps (22) is used to drive the first tube (211) to move along its own axial direction, and the other of the clamps (22) is used to drive the second tube (213) to move along its own axial direction.

8. A method for controlling a calibration device, wherein a water meter is calibrated by using a calibration device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Water meter installation; S11. When producing water meters on a water meter production line, the water meter code is bound to the water meter pallet code. When the water meter production is completed, the water meter pallet with the water meter is moved to the loading station; S12, scanning the water meter tray code on the water meter tray located at the loading station to obtain water meter information, and according to the obtained water meter information, using the transport robot (200) to transport the water meter to the corresponding meter loading position in the calibration pipeline (2); S2, calibration head (3) installation; S21, when the water meter is moved to the corresponding meter installation position, the mobile manipulator (4) moves the corresponding calibration head (3) to the top of the corresponding meter installation position, and at this time, the calibration head (3) is installed on the upper side of the water meter; S22, when the calibration head (3) is installed, the meter clamp (22) corresponding to the meter installation position is started to clamp the water meter; S3, repeat S1 and S2 until all meter installation positions in the corresponding calibration pipeline (2) are installed with water meters; S4, automatic calibration of water meter; S41, when all the meter installation positions in the calibration mechanism (100) are installed with water meters, the calibration mechanism (100) is started, water flows into the corresponding calibration pipeline (2), and the water flows through all the water meters in sequence, and automatic calibration begins; S42, after the calibration is completed, the calibration result of the corresponding calibration head (3) and the parameters of the corresponding water meter are recorded, and the corresponding water meter is determined to be qualified or unqualified according to the calibration result of the calibration head (3); S5. Dismantling of qualified water meters; S51, resetting the calibration head (3) corresponding to the qualified water meter, disassembling the qualified water meter, and then transporting the disassembled water meter to the qualified conveying line; S52, repeat step S51, and sequentially move all qualified water meters to the qualified conveying line; S6, repeating steps S1 to S5 to recalibrate the unqualified water meter; S7, when the recalibration result of the unqualified water meter in step S6 is unqualified, the water meter that fails the repeated calibration is dismantled; S71, resetting the calibration head (3) corresponding to the water meter that failed the repeated calibration, disassembling the water meter that failed the repeated calibration, and then transporting the disassembled water meter to the failed conveying line; S72. Repeat step S71 to sequentially move all water meters that have failed repeated calibration to the failed conveying line.

9. The control method of a calibration device according to claim 8, characterized in that: In step S6, the unqualified water meters are calibrated repeatedly for multiple times.

10. The control method of a calibration device according to claim 8, characterized in that: In step S41, when water is introduced into the corresponding calibration pipeline (2), a small flow of water is introduced first, and the pressure in the calibration pipeline (2) is detected by the pressure sensor in the calibration mechanism (100). When the pressure is normal, automatic calibration is performed; when the pressure is abnormal, the calibration mechanism (100) is closed.

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