Gas meter verification system and verification method

Abstract

The invention provides a gas meter verification system and method, and the system comprises a feeding and discharging conveying line which is provided with a feeding conveying line and a discharging conveying line; the up-down loading and unloading mechanism is used for conveying the to-be-detected gas meters on the goods shelf to the feeding conveying line and conveying the detected gas meters on the discharging conveying line to the goods shelf; the main line body is arranged on one side of the feeding and discharging conveying line and provided with a feeding area, a discharging area and a plurality of detection areas, and the main line body conveys the gas meters from the feeding area to the discharging area and detects the gas meters in the detection areas; the feeding manipulator is used for clamping the to-be-detected gas meters on the feeding conveying line and placing the to-be-detected gas meters on a feeding area, the feeding area places the gas meters on the station discs on the main line body, and the gas meters and the corresponding station discs are numbered and bound; the discharging mechanical arm is used for clamping the detected gas meters in the discharging area and placing the detected gas meters on the discharging conveying line. The problem that in the prior art, the labor intensity is high in the manual operation process is solved.

Description

Technical Field

[0001] The present application relates to the technical field of gas meter detection, and more specifically, to a gas meter calibration system and a calibration method. Background Art

[0002] With the continuous advancement of industrial automation, the production and testing of gas meters have gradually transformed into automated equipment. Gas meter testing must be carried out in strict accordance with the requirements of relevant regulations and specifications, and there are strict requirements for the testing environment. The mainstream practice in the industry is to manually install the gas meter on the testing device for testing, and after the test is completed, the data is exported from the test bench and a certificate is issued.

[0003] As one of the three civil meters, gas meters have a large detection volume and mainly rely on manual labor, which is extremely labor-intensive. In addition, there are many samples and a large amount of data, and problems such as data duplication and omission often occur.

[0004] Therefore, the prior art still needs to be improved and developed. Summary of the invention

[0005] The purpose of the present application is to provide a gas meter calibration system and calibration method, which solves the problem of the existing technology that the labor intensity is extremely high during manual operation and the large amount of data processed may easily lead to data errors.

[0006] To achieve the above purpose, the technical solution adopted in this application is:

[0007] On the one hand, the present application provides a gas meter calibration system, including: a loading and unloading conveyor line, the loading and unloading conveyor line having a loading conveyor line and a unloading conveyor line;

[0008] The upper and lower loading and unloading mechanism is arranged on one side of the upper and lower material conveying line, and is used to convey the gas meters to be inspected on the shelf to the upper material conveying line and to convey the inspected gas meters on the lower material conveying line to the shelf;

[0009] The main line body is arranged on one side of the loading and unloading conveying line and has a feeding area, a discharging area and several detection areas. The main line body transports the gas meter from the feeding area to the discharging area and performs detection in several detection areas;

[0010] The loading robot is used to clamp the gas meter to be inspected on the loading conveyor line and place it in the feeding area. The feeding area places the gas meter on the work station tray on the main line body and binds it with the corresponding work station tray by number;

[0011] The unloading robot is used to clamp the inspected gas meters in the unloading area and place them on the unloading conveyor line.

[0012] Optionally, the main line body has a first direction and a second direction perpendicular to each other, and the main line body includes:

[0013] A first conveying line, the first conveying line is extended along a first direction, and the feeding area is located on the first conveying line;

[0014] A main input transmission line, which is extended along the second direction and is located at the output end of the first transmission line;

[0015] An airtight detection buffer line, the input end of which is connected to the main input transmission line;

[0016] An airtight detection conveying line is arranged along a first direction, an input end of the airtight detection conveying line is connected to an airtight detection buffer line, and an output end is connected to a main input transmission line. An airtight detection station is arranged on the airtight detection conveying line, and the airtight detection station is used to detect the airtightness of the gas meter;

[0017] An indication error detection buffer line, the input end of which is connected to the main input transmission line and is located downstream of the airtight detection transmission line;

[0018] Multiple indication error detection conveyor lines, each of which is extended along a first direction and spaced side by side in a second direction, each of which has an input end connected to an indication error detection buffer line and an output end connected to a main input transmission line, each of which is provided with an indication error detection station, and the indication error detection station is used to detect the accuracy of the displayed value of the gas meter;

[0019] A qualified product line, the qualified product line is extended along the first direction, the input end of the qualified product line is connected to the main input conveying line, and is located downstream of the last indication error detection conveying line;

[0020] The unqualified sample line is extended along the first direction, the input end of the unqualified sample line is connected to the main input transmission line and is located downstream of the qualified product line.

[0021] Optionally, the main line body further includes: a main output transmission line, the main output transmission line is extended along the second direction, one end of the main output transmission line is connected to the unqualified sample line and the qualified product line, and the other end is connected to the first transmission line;

[0022] The discharging area is arranged on the first conveying line and is spaced apart from the feeding area.

[0023] On the other hand, the present application proposes a gas meter calibration method, which is applied to the gas meter calibration system as described above, and the method comprises the steps of:

[0024] The gas meters to be inspected on the shelf after being placed still are transported to the loading conveyor line through the upper and lower loading and unloading mechanisms;

[0025] Control the feeding manipulator to clamp the gas meter to be inspected on the feeding conveyor line and place it in the feeding area on the main line body;

[0026] Bind the identification information of the gas meter to the identification information of the workstation tray in the feeding area, so that the gas meter is installed on the workstation tray;

[0027] The gas meter is tested in several testing areas in turn through the transmission of the main line, and the tested gas meter is obtained in the discharge area;

[0028] Control the unloading manipulator to pick up the inspected gas meter in the unloading area and place it on the unloading conveyor line;

[0029] The inspected gas meters on the unloading conveyor line are transported to the shelves through the upper and lower loading and unloading mechanisms.

[0030] The beneficial effects of a gas meter calibration system and calibration method provided by the present application are at least as follows: by setting a loading and unloading conveyor line, an upper and lower loading and unloading mechanism, a main line body, a loading manipulator and a unloading manipulator, when the gas meter is placed on the main line body by the loading manipulator, the gas meter is placed on the work station disk on the main line body in the feeding area and is numbered and bound with the corresponding work station disk, so that position monitoring can be performed during the entire detection process on the main line body, and digital logistics, metering data processing and automated calibration can be realized. The system can realize the full process management of the gas meter during the detection process, which not only greatly reduces the labor intensity of the calibration personnel, but also significantly improves the calibration efficiency, strengthens the compliance of the gas meter calibration, and ensures the quality of the gas meter calibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 A schematic diagram of the planar structure of a gas meter calibration system provided in an embodiment of the present application;

[0033] Figure 2 A schematic diagram of the planar structure of a loading and unloading conveyor line of a gas meter calibration system provided in an embodiment of the present application;

[0034] Figure 3 for Figure 2 Schematic diagram of the cross section at AA in the middle;

[0035] Figure 4 for Figure 2 Schematic diagram of the cross section at BB in the middle;

[0036] Figure 5 for Figure 2 Schematic diagram of the cross section at CC;

[0037] Figure 6 A schematic diagram of the planar structure of a main line body of a manual operation station of a gas meter calibration system provided in an embodiment of the present application;

[0038] Figure 7 A schematic diagram of the structure of a manual operation station of a gas meter calibration system provided in an embodiment of the present application;

[0039] Figure 8 A schematic diagram of the structure of a material taking manipulator at a manual operation station in a gas meter calibration system provided in an embodiment of the present application;

[0040] Fig. 9 A schematic structural diagram of another perspective of a material taking manipulator in a manual operation station of a gas meter calibration system provided in an embodiment of the present application;

[0041] Fig.10 A cross-sectional view of a material taking manipulator in a manual operation station of a gas meter calibration system provided in an embodiment of the present application;

[0042] Fig.11 A schematic structural diagram of a lifting mechanism in a manual operation station of a gas meter calibration system provided in an embodiment of the present application.

[0043] Among them, the reference numerals in the figure are:

[0044] 10. Gas meter; 20. Pallet; 30. Shelf; 40. Intelligent transport vehicle; 50. Inspection room; 100. Loading and unloading conveyor line; 110. Loading conveyor line; 111. First loading roller line; 112. Loading lifting mechanism; 113. Second loading roller line; 114. First empty tray lifting mechanism; 120. Unloading conveyor line; 121. First unloading roller line; 122. Unloading lifting mechanism; 123. Second unloading roller line; 124. Unloading lifting roller line; 125. Third unloading roller line; 126. Second empty tray lifting mechanism; 130. Empty tray buffer device; 131. Carrying rack; 200. Lower loading and unloading mechanism; 210, conveying part; 220, push-pull part; 221, suction cup; 222, push plate; 300, main line body; 301, station plate; 310, first conveying line; 311, feeding area; 312, discharging area; 320, main input conveying line; 330, airtight detection buffer line; 331, first airtight buffer line; 332, second airtight buffer line; 340, airtight detection conveying line; 341, airtight detection station; 350, indication error detection buffer line; 351, first error buffer line; 352, second error buffer line; 360, indication error detection conveying line; 361, indication error detection measuring station; 370, qualified product line; 380, unqualified sample line; 390, main output transmission line; 400, loading robot; 500, unloading robot; 600, static area; 700, manual operation station; 7100, station line body; 7110, lifting mechanism; 7111, lifting cylinder; 7112, positioning plate; 7113, guide column; 7114, positioning pin; 7200, material taking robot; 7210, second direction driving mechanism; 7220, lifting mechanism; 7221, lifting bracket; 7222, lifting cylinder; 7223, lifting movable frame; 7224, slider; 722 5. Guide rail; 7226. Movable vertical plate; 7227. Supporting horizontal plate; 7228. Cylinder hinged frame; 7229. Avoiding hole; 7230. Turning mechanism; 7231. Turning cylinder; 7232. Rotating seat; 7233. Rotating shaft; 7234. Connecting seat; 7235. Fixed block; 7236. First supporting plate; 7237. Second supporting plate; 7238. Hinge block; 7240. Clamping mechanism; 7241. Clamping cylinder; 7242. Clamping piston rod; 7243. Clamping claw part; 7244. Clamping claw supporting plate; 7245. Clamping claw arm; 7246. Clamping block; 7300. Material unloading robot. DETAILED DESCRIPTION

[0045] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0046] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly or indirectly located on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and cannot be understood as limitations on the present technical solution. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0047] Embodiment 1

[0048] like Figure 1 , Figure 2 , Figure 5 As shown, this embodiment proposes a gas meter calibration system, which mainly includes: an upper and lower material conveyor line 100, an upper and lower loading and unloading mechanism 200, a main line body 300, a loading manipulator 400 and a unloading manipulator 500. The upper and lower material conveyor line 100 has an upper material conveyor line 110 and an unloading material conveyor line 120. The upper and lower loading and unloading mechanism 200 is arranged on one side of the upper and lower material conveyor line 100, and is used to convey the gas meter 10 to be inspected on the shelf 30 to the upper material conveyor line 110 or / and convey the inspected gas meter 10 on the unloading conveyor line 120 to the shelf 30. It should be noted that the gas meter 10 to be inspected on the shelf 30 can be directly placed on the shelf 30, so the upper and lower loading and unloading mechanism 200 can directly take and place the gas meter 10. However, to facilitate inspection, the gas meters 10 to be inspected on the shelf 30 of this embodiment can be placed on a tray 20, and one tray 20 can hold 8 gas meters 10. Then the upper and lower loading and unloading mechanism 200 can take and place the gas meters 10 to be inspected by taking and placing the tray 20. The shelf 30 can be arranged in multiple layers, and the gas meters 10 can be arranged in multiple layers on the shelf 30 via the tray 20.

[0049] The loading conveyor line 110 and the unloading conveyor line 120 can be separately arranged, and then the upper and lower loading and unloading mechanisms 200 are respectively arranged on the loading conveyor line 110 and the unloading conveyor line 120. Alternatively, the loading conveyor line 110 and the unloading conveyor line 120 can be integrated as in the present embodiment, that is, the loading end of the loading input line and the discharging end of the unloading conveyor line 120 are arranged side by side on the same side. In this way, only one upper and lower loading and unloading mechanism 200 needs to be arranged at one position to perform automatic loading and automatic unloading operations.

[0050] like Figure 1 , Figure 2As shown, the main line body 300 is arranged on one side of the loading and unloading conveyor line 100, and has a feeding area 311, a discharging area 312 and several detection areas. The main line body 300 conveys the gas meter 10 from the feeding area 311 to the discharging area 312 and performs detection in several detection areas. The loading manipulator 400 is used to clamp the gas meter 10 to be inspected on the loading conveyor line 110 and place it in the feeding area 311. The feeding area 311 places the gas meter 10 on the work station tray 301 on the main line body 300 and binds it with the corresponding work station tray 301 by number. Then, when the work station tray 301 moves on the main line body 300 and performs detection in different detection areas, positioning and tracking can be achieved. The unloading manipulator 500 is used to clamp the inspected gas meter 10 in the discharging area 312 and place it on the unloading conveyor line 120. By binding the workstation 301 to the gas meter 10 to be inspected, the main line 300 can detect the workstation 301 and upload the sample information, test data, standard instrument information, etc. in real time, filter and sort them, and output the original record list and test data list in the specified format to achieve seamless connection with the Lims system (laboratory management system). At the same time, this gas meter calibration system also has convenient standard instrument addition and maintenance functions, so that the main line 300 can achieve intelligent management and control during the detection process.

[0051] like Figure 1 , Figure 2As shown, the gas meter calibration system of this embodiment takes the tray 20 filled with gas meters 10 to be inspected from the shelf 30 to the loading and unloading conveyor line 110 through the upper and lower loading and unloading mechanism 200. The loading and unloading conveyor line 110 realizes the transmission and buffering of the tray 20. The gas meter 10 to be inspected in the tray 20 is caught by the loading robot 400 to the feeding area 311 of the main line body 300, and is scanned and bound in the feeding area 311. After scanning the code of the gas meter 10 to be inspected to obtain the sample information, it is bound to the work station tray 301 in the feeding area 311 of the main line body 300, and the gas meter 10 is placed on the work station tray 301. The gas meter 10 to be inspected is carried by the work station tray 301 to move on the main line body 300 and pass through each inspection area in turn for functional inspection. For example, the gas meter 10 to be inspected is transferred from the work station tray 301 to the air tightness inspection station 341 for air tightness test, and to the indication error detection station 361 for indication error detection. The gas meter 10 with qualified air tightness and indication is inspected for appearance and function at the manual operation station 700, and the qualified ones are sealed with lead and a certificate of conformity is affixed. Finally, it returns to the discharge area 312 of the main line body 300, and is collected into the empty pallet 20 by the unloading robot 500 in the discharge area 312. When the pallet 20 filled with the inspected gas meters 10 is transported to the upper and lower loading and unloading mechanism 200 by the unloading conveyor line 120, it is transferred to the empty shelf 30 by the upper and lower loading and unloading mechanism 200. The gas meter calibration system can realize the full process management of the gas meter 10 during the inspection process, which not only greatly reduces the labor intensity of the calibration personnel, but also significantly improves the calibration efficiency, strengthens the compliance of the gas meter 10 calibration, and ensures the quality of the gas meter 10 calibration.

[0052] like Figure 1 As shown, further, in order to ensure the accuracy of the gas meter 10 detection, the gas meter calibration system is usually set in the detection room 50, and the environment in the detection room 50 is controlled to meet the detection requirements. For the convenience of structural description, in the horizontal direction, the left and right direction of the main line body 300 is the first direction, and the front and rear direction is the second direction. The other structures of this system are all marked with this direction for structural description. The gas meter calibration system also includes: a static area 600 and an intelligent transport vehicle 40 (AGV). The static area 600 is used to place the shelf 30, and the gas meter 10 to be inspected is placed on the shelf 30. By letting the gas meter 10 to be inspected on the shelf 30 stand for a predetermined time, the gas meter 10 can reach the temperature and humidity standards in the detection room, thereby meeting the detection requirements. The intelligent transport vehicle 40 (AGV) is used to transport the shelf 30, so that the shelf 30 with the gas meter 10 to be inspected is moved from the static area 600 to the upper and lower loading and unloading mechanism 200.

[0053] like Figure 1As shown, in the specific structure, the static area 600 can be set in the front area of ​​the test room, and a production management control system (MES system) is set in the static area 600 to manage the static area 600. The workstations in the static area 600 can be specifically divided into three states: idle workstations, static workstations, and static workstations to be inspected. The production management control system performs static timing on the shelf 30 of the static workstation, and converts it to the static workstation to be inspected after reaching the predetermined time. Therefore, the data in the detection process is collected, analyzed and processed by the production management control system (MES system), and the verification quantity, overall qualified rate, single-station qualified rate of the detection equipment, production capacity beat, equipment alarm and other information can be dynamically output to judge the operation of the equipment, so as to realize full traceability of the detection process data. The production management control system (MES system) monitors the temperature and humidity in the detection room, and strictly controls the temperature and humidity in the detection room by setting a threshold to adjust the air conditioner, so as to achieve a stable detection environment.

[0054] like Figure 1 As shown, the smart transport vehicle 40 (AGV) can also transport the shelves 30 of uninspected gas meters 10 from the loading position of the warehouse outside the inspection room to the vacant station of the static area 600 in the inspection room for static placement during use. The statically placed shelves 30 are then transported from the static area 600 to the upper and lower loading and unloading mechanism 200 by the smart transport vehicle 40 (AGV) to prepare for inspection. The shelves 30 filled with inspected gas meters 10 are transported to the unloading position of the warehouse by the smart transport vehicle 40 (AGV). It should be noted that the shelves 30 are all numbered, and the shelf 30 numbers are obtained by the smart transport vehicle 40 (AGV), so that the entire process can be traced.

[0055] like Figure 2 , Figure 3 , Figure 4As shown, further, the loading conveyor line 110 specifically includes: a first loading roller line 111, a loading lifting mechanism 112 and a second loading roller line 113. The first loading roller line 111 is arranged along the first direction, the second loading roller line 113 is arranged along the second direction, and the loading lifting mechanism 112 lifts the gas meter 10 input by the first loading roller line 111 and transports it to the second loading roller line 113. The unloading conveyor line 120 specifically includes: a first unloading roller line 121, an unloading lifting mechanism 122 and a second unloading roller line 123; the first unloading roller line 121 is arranged along the second direction, the second unloading roller line 123 is arranged along the first direction, and the unloading lifting mechanism 122 receives the inspected gas meter 10 input by the first unloading roller line 121 and descends to the second unloading roller line 123 for transportation. With the above structure, the loading conveyor line 110 and the unloading conveyor line 120 can be separately arranged at different positions. The loading is performed through the loading conveyor line 110, and the unloading is performed through the unloading conveyor line 120. The first loading roller line 111 of this embodiment has a similar structure to the second unloading roller line 123, the loading lifting mechanism 112 has a similar structure to the unloading lifting mechanism 122, and the second loading roller line 113 has a similar structure to the first unloading roller line 121. Therefore, the loading conveyor line 110 is taken as an example for structural description: the rollers on the first loading roller line 111 have power, and there are gaps between the rollers. The loading lifting mechanism 112 is arranged at the reversing position of the first loading roller line 111 (i.e., the position opposite to the second loading roller line 113), and has lifting frames on both sides, and the lifting frames on both sides have conveyor belts; the lifting frames on both sides of the loading lifting mechanism 112 can pass through the gaps between the upper rollers and dock with the second loading roller line 113. After the upper and lower loading and unloading mechanism 200 takes the pallet 20 from the shelf 30, it is transported to the first loading roller line 111. Since the first loading roller line 111 has power, the pallet 20 can be transported toward the reversal point, and the first loading roller line 111 has a certain length, so that multiple pallets 20 can be cached on the first loading roller line 111. The pallet 20 located at the reversal point of the first loading roller line 111 is above the loading lifting mechanism 112. The loading lifting mechanism 112 drives the lifting frames on both sides to extend upward to the top of the roller, so as to lift the pallet 20 at the reversal point to align with the second loading roller line 113, and the conveyor belt on the lifting frame is started to transport the pallet 20 to the second loading roller line 113. The second loading roller line 113 delivers the pallet 20 to the position of the loading robot 400, and the loading is performed by the loading robot 400.

[0056] like Figure 2 , Figure 3 , Figure 4As shown, in order to enable the system to use only one upper and lower loading and unloading mechanism 200, further, the upper and lower material conveyor line 100 also includes: an upper and lower material conveyor frame, and the upper material conveyor line 110 and the lower material conveyor line 120 are both arranged on the upper and lower material conveyor frame, thereby forming an integral device. The first lower material roller line 121 is consistent with the height of the second upper material roller line 113, and the second lower material roller line 123 is consistent with the height of the first upper material roller line 111, and is arranged in the opposite direction. In the specific structure, the second lower material roller line 123 and the first upper material roller line 111 are located above to form a line along the first direction, and the second upper material roller line 113 is extended from front to back, and the space between the second upper material roller line 111 is used to set the loading manipulator 400. The first lower material roller is extended from back to front, and is arranged side by side with the second upper material roller at a predetermined distance, and the space between the first lower material roller and the second lower material roller is used to set the unloading manipulator 500.

[0057] like Figure 2 , Figure 3 , Figure 4 As shown, the unloading conveyor line 120 also includes: an unloading lifting roller line 124 and a third unloading roller line 125. The unloading lifting roller line 124 is located at the output end of the second unloading roller line 123, and the third unloading roller line 125 is located below the first loading roller line 111, and the output end of the third unloading roller line 125 and the input end of the first loading roller line 111 are located on the same side of the upper and lower positions; the unloading lifting roller line 124 is used to receive the inspected gas meter 10 output by the second unloading roller line 123, and transport it to the third unloading roller line 125 after descending. In the specific structure, the unloading lifting roller line 124 is located at the end of the second unloading roller line 123 away from the first loading roller line 111, and the roller on the unloading lifting roller line 124 also has power. When the tray 20 filled with the inspected gas meters 10 moves to the unloading lifting roller line 124 through the second unloading roller line 123, the unloading lifting roller line 124 descends to the position of the third unloading roller line 125 and docks with it, and the tray 20 is transported to the third unloading roller line 125, and moves toward the upper and lower loading and unloading mechanism 200 through the third unloading roller line 125. During the movement, the tray 20 filled with the inspected gas meters 10 is cached through the third unloading roller line 125. Since the output end of the third unloading roller line 125 and the input end of the first loading roller line 111 are located on the same side of the upper and lower positions, as long as an upper and lower loading and unloading mechanism 200 is set on this side and the lifting function is used, the loading and unloading operations can be realized.

[0058] like Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, it should be noted that the first unloading roller line 121 and the second loading roller line 113 are arranged side by side with a predetermined distance, so that an empty tray buffer device 130 is arranged between the two. In order to realize the buffering function, in the specific structure, the rollers of the second loading roller line 113 are arranged side by side in the left-right direction, and the rollers on the first unloading roller line 121 are also arranged side by side in the left-right direction, then the conveying directions of the second loading roller line 113 and the first unloading roller line 121 are both the first direction (from right to left), and the first empty tray lifting mechanism 114 is arranged under the roller of the second loading roller line 113, and the second empty tray lifting mechanism 126 is arranged under the roller of the first unloading roller line 121. The first empty tray lifting mechanism 114 and the second empty tray lifting mechanism 126 can refer to the loading lifting mechanism 112. The empty tray buffer device 130 is provided with a multi-layer carrier 131, which can be lifted up and down. The height at which the first unloading roller line 121 and the second loading roller line 113 are connected is the receiving position of the empty tray buffer device 130. An empty tray pushing mechanism is provided at the receiving position. In the specific working process, when the loading lifting mechanism 112 drives the lifting frames on both sides to extend upward to the top of the roller, thereby lifting the tray 20 at the reversing position to align with the second loading roller line 113, the first empty tray lifting mechanism 114 on the second loading roller line 113 The lifting frame also rises to above the roller of the second loading roller line 113 and is aligned with the lifting frame of the loading lifting mechanism 112, so that the pallet 20 on the first loading roller line 111 can be smoothly transported to the lifting frame of the first empty pallet lifting mechanism 114, and then the lifting frame of the first empty pallet lifting mechanism 114 is lowered, so that the pallet 20 is lowered to the second loading roller line 113 for loading. When the loading is completed, the driving force is generated by the roller on the second loading roller line 113 to transport the empty pallet 20 from right to left to the load-bearing frame 131 in the receiving position. When it is necessary to load the inspected gas meter 10, the empty tray pushing mechanism rises and pushes the empty tray 20 on the carrier 131 in the receiving position, so that the empty tray 20 moves toward the left on the carrier 131 to the roller of the first loading roller line 111. Due to the rotation of the roller, the empty tray 20 can be completely located on the first loading roller line 111 to receive the inspected gas meter 10 delivered by the unloading robot 500. When the tray 20 is full, the second empty tray lifting mechanism 126 is started to lift the tray 20 from the first loading roller line 111 through the lifting frame. At the same time, the unloading lifting mechanism 122 at the corner of the second loading roller line 113 lifts its lifting frame. Since both lifting frames have conveying power, the tray 20 full of inspected gas meters 10 can be smoothly transferred to the second loading roller line 113, thereby realizing the smooth recycling of the empty tray 20.

[0059] like Figure 2 , Figure 3As shown, further, the upper and lower loading and unloading mechanism 200 of this embodiment specifically includes: a conveying part 210 and a push-pull part 220, the conveying part 210 can be raised and lowered, and conveying belts are arranged on both sides of the conveying part 210. The push-pull part 220 is arranged between the conveying belts on both sides, the push-pull part 220 can be raised and lowered in the conveying part 210, and the pushing part can move along the conveying direction of the conveying part 210.

[0060] like Figure 2 , Figure 3 As shown, in the specific process of loading, after the shelf 30 is sent to the right side of the upper and lower loading and unloading mechanism 200, the conveying part 210 that can be lifted up and down is lifted to the layer where the tray 20 to be taken is located on the shelf 30, the push-pull part 220 is lifted, and after moving toward the shelf 30, it is sucked onto the tray 20 by the suction cup 221 on the push-pull part 220, and then the push-pull part 220 is moved in the direction away from the shelf 30, so as to pull the tray 20 onto the conveying part 210, and the conveying action of the conveyor belt on the conveying part 210 makes the tray 20 completely transported to the conveying part 210, and then the conveying part 210 is lowered to a position flush with the loading conveyor line 110, and the conveyor belt on the conveying part 210 and the roller on the first loading roller line 111 are started, and under the joint action of the two, the tray 20 filled with gas meters 10 to be inspected is transferred to the loading conveyor line 110.

[0061] In the specific process of unloading, the conveying part 210 that can be raised and lowered is lowered to the layer where the unloading conveyor line 120 is located, and at the output end of the third unloading roller line 125, the roller and the conveyor belt on the conveying part 210 work together to transfer the pallet 20 filled with inspected gas meters 10 from the third unloading roller line 125 to the conveying part 210, and then the conveying part 210 is moved up to be flush with the empty layer of the shelf 30. In the process of the conveying part 210 conveying from left to right, the push-pull part 220 is raised, and the push plate 222 on the push-pull part 220 is pressed against the pallet 20, so that the push-pull part 220 moves from left to right, thereby pushing the pallet 20 to the empty layer of the shelf 30, and completing the unloading process.

[0062] Through the above structure, only one upper and lower loading and unloading mechanism 200 is used in conjunction with the loading and unloading conveyor line 100 to realize automatic loading and unloading operations from the shelf 30, thereby optimizing the structure, allowing the empty pallet 20 to be recycled, and improving the detection efficiency.

[0063] like Figure 1 , Figure 6As shown, further, the main line body 300 of this embodiment mainly includes: a first conveyor line 310, a main input conveyor line 320, an airtight detection buffer line 330, an airtight detection conveyor line 340, an indication error detection buffer line 350, multiple indication error detection conveyor lines 360, a qualified product line 370, and an unqualified sample line 380; multiple workstations 301 are arranged on the main line body 300, and the two sides of the workstations 301 are respectively arranged on the conveyor belts on both sides of the main line body 300. The conveyor belts on both sides of the main line body 300 move synchronously along the first direction, thereby driving the workstations 301 to move, and the workstations 301 are used to match the gas meter 10 to be inspected, so that the gas meter 10 can move. The first conveyor line 310 is extended along the first direction, and the feeding area 311 is located on the first conveyor line 310. The feed area 311 has an information binding device. The gas meter 10 in the feed area 311 is scanned by a radio frequency device and placed on the corresponding workstation disk 301, thereby binding the identity with the workstation disk 301. The workstation disk 301 is equipped with a radio frequency tag, and a read / write head is arranged on the main line body 300. The radio frequency tag on the workstation disk 301 is read by the read / write head at each position of the main line body 300, and the detailed information of each workstation on the line body during the detection process of the corresponding gas meter 10 (such as the station passing time, workstation detection parameters, detection results, etc.) can be traced. The main input transmission line 320 is extended along the second direction and is located at the output end of the first transmission line 310. The input end of the airtight detection buffer line 330 is connected to the main input transmission line 320. The airtight detection conveying line 340 is arranged along the first direction, the input end of the airtight detection conveying line 340 is connected to the airtight detection buffer line 330, and the output end is connected to the main input conveying line 320. The airtight detection conveying line 340 is provided with an airtight detection station 341 (airtight detection device), and the airtight detection station 341 is used to detect the airtightness of the gas meter 10. The input end of the indication error detection buffer line 350 is connected to the main input conveying line 320 and is located downstream of the airtight detection conveying line 340. Multiple indication error detection conveyor lines 360 are all extended along the first direction and arranged side by side in the second direction. The input ends of the multiple indication error detection conveyor lines 360 are all connected to the indication error detection buffer line 350, and the output ends are all connected to the main input conveyor line 320. Each indication error detection conveyor line 360 ​​is provided with an indication error detection station 361 (indication error detection device), and the indication error detection station 361 is used to detect the accuracy of the display value of the gas meter 10. The qualified product line 370 is extended along the first direction, and the input end of the qualified product line 370 is connected to the main input conveyor line 320 and is located downstream of the last indication error detection conveyor line 360. The unqualified sample line 380 is extended along the first direction, and the input end of the unqualified sample line 380 is connected to the main input conveyor line 320 and is located downstream of the qualified product line 370.

[0064] like Figure 6As shown, in the specific process, the first conveyor line 310, the airtight detection conveyor line 340, multiple indication error detection conveyor lines 360, the qualified product line 370 and the unqualified sample line 380 are arranged at intervals along the front and rear directions, and the first conveyor line 310 is located on the rear side of the loading and unloading conveyor line 100. When the loading robot 400 clamps the gas meter 10 to be inspected on the loading conveyor line 110 and places it in the feeding area 311 on the first conveyor line 310, the gas meter 10 and the corresponding workstation disk 301 on the line body are bound to each other in the feeding area 311, and transmitted to the main input conveyor line 320 through the first conveyor line 310. The main input conveyor line 320 extends from front to back, so it is necessary to change the transmission direction of the workstation disk 301. Usually, a lifting conversion platform is set at the docking position of the main input conveyor line 320 and each lateral conveyor line (for example, the first conveyor line 310, the airtight detection conveyor line 340, and multiple indication error detection conveyor lines 360). The lifting conversion platform can be raised and lowered, and it is aligned with the first conveyor line 310 by rising. The work tray 301 is then received and lowered to the main input conveyor line 320 for transportation; the main input conveyor line 320 conveys the work tray 301 with the gas meter 10 to the airtight detection cache line 330 for caching, wherein the airtight detection cache line 330 has a first airtight cache line 331 arranged along a first direction and a second airtight cache line 332 arranged along a second direction, the second airtight cache line 332 is connected to the output end of the first airtight cache line 331, the second airtight cache line 332 extends backward and is connected to the airtight detection conveyor line 340, so that the work tray 301 of the gas meter 10 to be inspected is moved to the airtight detection conveyor line 340 for airtight detection in turn. After the air tightness test is completed, the gas meters 10 are all put into the main input transmission line 320. The control host controls the lifting and conversion platform at the connection point of the main input transmission line 320 and the indication error detection buffer line 350 according to the air tightness test result, and pushes the corresponding work station disk 301 of the qualified gas meter 10 upward and transports it to the indication error detection buffer line 350, while the corresponding work station disk 301 of the unqualified gas meter 10 is not lifted, so that the work station disk 301 does not perform indication error detection and smoothly enters the downstream.

[0065] The tray 20 carrying the gas meter 10 enters the indication error detection cache line 350 for queuing. The indication error detection cache line 350 also includes a first error cache line 351 arranged along the first direction and a second error cache line 352 arranged along the second direction. The first error cache line 351 is located behind the airtight detection conveyor line 340 and docked on the main input conveyor line 320. The second error cache line 352 is docked at the output end of the first error cache line 351. The second airtight cache line 332 extends backward and docks with multiple indication error detection conveyor lines 360 side by side thereon, so that the workstation tray 301 of the gas meter 10 to be inspected is allocated to different indication error detection conveyor lines 360 for indication error detection. After the indication error detection is completed, the gas meters 10 all enter the main input transmission line 320. The control host controls the lifting and conversion platform at the connection point between the qualified product line 370 and the unqualified sample line 380 on the main input transmission line 320 according to the indication error detection result, and pushes the corresponding work station tray 301 of the qualified gas meter 10 upward and transports it to the qualified product line 370, while the corresponding work station tray 301 of the unqualified gas meter 10 is lifted up to the unqualified sample line 380, thereby realizing the diversion of qualified and unqualified products.

[0066] like Figure 1 , Figure 6 As shown, further, in order to enable the main line body 300 to realize the cyclic detection function, the main line body 300 of this embodiment also includes: a main output transmission line 390, the main output transmission line 390 is extended along the second direction, one end of the main output transmission line 390 is connected to the unqualified sample line 380 and the qualified product line 370, and the other end is connected to the first transmission line 310, and the discharge area 312 is arranged on the first transmission line 310 and is spaced from the feed area 311. The unqualified product is manually inspected on the unqualified sample line 380 to see if repeated inspection is required. If repeated inspection is required, the gas meter 10 is still placed on the work station tray 301, so that the work station tray 301 is transferred to the main output transmission line 390, and then reaches the first transmission line 310 to start repeated inspection. If repeated inspection is not required, the unqualified product is removed from the work station tray 301.

[0067] The qualified products enter the main output conveyor line 390 on the qualified product line 370, and are transported from the main output conveyor line 390 to the first conveyor line 310. They are picked up by the unloading robot 500 in the unloading area 312 of the first conveyor line 310 and transferred to the tray 20 of the unloading conveyor line 120.

[0068] like Figure 2 , Figure 7As shown, further, the gas meter calibration system of this embodiment also includes: a manual operation station 700, which is arranged on the main line body 300. For example, the manual operation station 700 can be located at the rear side of the unqualified sample line 380, to realize the manual operation function on the main line body 300, grab the gas meter 10 on the qualified product line 370 to the manual operation station 700, perform manual operation, and then grab it back to the station tray 301 on the qualified product line 370.

[0069] like Figure 7 , Figure 8As shown, further, the manual operation station 700 of this embodiment mainly includes: a station line body 7100, a material taking manipulator 7200 and a material placing manipulator 7300. When the main line body 300 is used to sequentially transfer the gas meter 10 through the station tray 301 along the first direction, the station line body 7100 is located on one side of the second direction of the qualified product line 370, and is used to transfer the gas meter 10 along the first direction so that manual operation can be performed; in the specific structure, the station line body 7100 is a manual inspection line, the main line body 300 is an automatic inspection line, and the manual inspection line is arranged side by side with the qualified product line 370 and the unqualified sample line 380. In this embodiment, in order to simplify the structure, the unqualified sample line 380 is not drawn. The worker stands at the back of the station line body 7100, so that he can stay away from the qualified product line 370. The material taking manipulator 7200 is arranged along the second direction, and is used to flip the gas meter 10 on the qualified product line 370 and transport it to the work station line body 7100; the gas meter 10 is clamped on the qualified product line 370 to the work station line body 7100, and the work station line body 7100 drives the gas meter 10 to move along the second direction and pass through the worker positions in sequence, so that the workers can operate the gas meter 10 in sequence. The material placing manipulator 7300 and the material taking manipulator 7200 are arranged at intervals in the left and right directions, and are used to flip the operated gas meter 10 on the work station line body 7100 and transport it to the qualified product line 370. By setting a station line body 7100 on one side of the second direction of the qualified product line 370, the gas meter 10 in a vertical state transmitted along the first direction is clamped by the material-retrieving manipulator 7200 and then flipped 90 degrees, and then transported to the station line body 7100, so that the gas meter 10 in a horizontal state is transmitted along the first direction of the station line body 7100. During the transmission process, the gas meter 10 outside the station line body 7100 is operated manually, and then the gas meter 10 that has been operated on the station line body 7100 is clamped and flipped by the material-discharging manipulator 7300, so that the gas meter 10 in a horizontal state is restored to a vertical state and transported to the qualified product line 370, completing the corresponding operation of the manual operation position. The material-retrieving manipulator 7200 and the material-discharging manipulator 7300 are used to flip and transport the gas meter 10, which reduces the labor intensity of personnel and improves the detection efficiency. In addition, a separate workstation line body 7100 is provided outside the qualified product line 370 so that operators can work away from the qualified product line 370, thereby ensuring the safety of the operators.

[0070] like Figure 8 , Fig. 9 , Fig.10As shown, further, the material taking manipulator 7200 of this embodiment specifically includes: a second direction driving mechanism 7210, a lifting mechanism 7220, a flipping mechanism 7230 and a clamping mechanism 7240. The second direction driving mechanism 7210 is arranged along the front-to-back direction to provide power for moving along the front-to-back direction. The lifting mechanism 7220 is connected to the second direction driving mechanism 7210 and moves along the front-to-back direction by the drive of the second direction driving mechanism 7210. The flipping mechanism 7230 is arranged on the lifting mechanism 7220 and moves along the up-down direction by the drive of the lifting mechanism 7220. The clamping mechanism 7240 is movably arranged on the lifting mechanism 7220 and is used to clamp the gas meter 10. The clamping mechanism 7240 is flipped 90° by the drive of the flipping mechanism 7230. In the specific process, when the gas meter 10 is clamped from the qualified product line 370, the lifting mechanism 7220 is driven by the second direction driving mechanism 7210 to move to the top of the qualified product line 370, and the lifting mechanism 7220 is lowered, and then the clamping mechanism 7240 is started and clamps the gas meter 10, and the gas meter 10 in the vertical state is removed from the work station 301, and then the lifting mechanism 7220 rises, and the flipping mechanism 7230 is started to flip the clamping mechanism 7240 90°, so that the gas meter 10 is flipped 90 degrees, and the gas meter 10 is changed from the vertical state to the horizontal state. Then, the second direction driving mechanism 7210 moves from front to back to the top of the work station line body 7100, and the clamping mechanism 7240 is lowered by the lifting mechanism 7220, so that the flat gas meter 10 is placed on the work station line body 7100. The clamping mechanism 7240 releases the gas meter 10 and moves up through the lifting mechanism 7220, so that the gas meter 10 moves along the first direction on the work station line body 7100 and is manually operated.

[0071] like Figure 8 , Fig. 9 As shown, further, the lifting mechanism 7220 of this embodiment specifically includes: a lifting bracket 7221, a lifting cylinder 7222 and a lifting movable frame 7223. The lifting bracket 7221 is connected to the second direction driving mechanism 7210, and moves along the second direction through the drive of the second direction driving mechanism 7210. The lifting cylinder 7222 is fixedly arranged on the lifting bracket 7221 along the up-down direction, so that the lifting cylinder 7222 makes the piston rod extend and retract along the up-down direction through ventilation. The lifting movable frame 7223 is connected to the lifting cylinder 7222 and is movably arranged on the lifting bracket 7221; in this way, through the drive of the lifting cylinder 7222, the lifting movable frame 7223 can move along the up-down direction, and the flipping mechanism 7230 and the clamping mechanism 7240 are both arranged on the lifting movable frame 7223, thereby driving the flipping mechanism 7230 and the clamping mechanism 7240 to move along the up-down direction.

[0072] In order to make the lifting movable frame 7223 move more stably in the up-down direction, a guide rail 7225 is provided on the back of the lifting movable frame 7223, and a slider 7224 is provided on the lifting bracket 7221. The slider 7224 matches the guide rail 7225 and slides on the guide rail 7225. During the driving process of the lifting cylinder 7222, the lifting movable frame 7223 can slide stably in the up-down direction. It should be noted that the slider 7224 and the guide rail 7225 can be changed in position and set as needed.

[0073] like Figure 8 , Fig. 9 , Fig.10 As shown, further, the flip mechanism 7230 of this embodiment specifically includes: a flip cylinder 7231, a rotating seat 7232 and a connecting seat 7234. The flip cylinder 7231 is hinged on the lifting movable frame 7223, and a rotating shaft 7233 is rotatably arranged on the rotating seat 7232. The rotating seat 7232 is arranged on the lifting movable frame 7223. In the specific structure, the lifting movable frame 7223 includes a movable vertical plate 7226, a supporting horizontal plate 7227 and a cylinder hinge frame 7228. The movable vertical plate 7226 can move in the up and down direction through the slider 7224 and the guide rail 7225. The movable vertical plate 7226 is connected to the lifting cylinder 7222 and moves through the drive of the lifting cylinder 7222. The supporting transverse plate 7227 is fixed vertically on the movable vertical plate 7226 in the horizontal direction, and a clearance hole 7229 is opened on the supporting transverse plate 7227. The cylinder hinge frame 7228 is fixed on the upper surface of the supporting transverse plate 7227 and is located on one side of the clearance hole 7229. The flip cylinder 7231 is inserted into the clearance hole 7229 along an inclined direction to the vertical direction, and the cylinder body of the flip cylinder 7231 is hinged on the cylinder hinge frame 7228. The rotating seat 7232 is fixed below the transverse supporting plate, and the entire clamping mechanism 7240 is also located below the transverse supporting plate. The two ends of the rotating shaft 7233 are connected to the rotating seat 7232 through bearings, so that the rotating shaft 7233 can rotate stably. The connecting seat 7234 is connected to the rotating shaft 7233, so that the connecting seat 7234 can rotate around the rotating shaft 7233. The connecting seat 7234 is hinged on the piston shaft of the flip cylinder 7231. The piston shaft of the flip cylinder 7231 provides power to push the connecting seat 7234 to rotate. The connecting seat 7234 is fixedly connected to the clamping mechanism 7240. When the connecting seat 7234 is pushed by the piston shaft to rotate the clamping mechanism 7240 around the rotating shaft 7233, thereby causing the clamping mechanism 7240 to flip 90°, then the gas meter 10 clamped by the clamping mechanism 7240 is also flipped 90°. The flipping mechanism 7230 is hinged with a flipping cylinder 7231 and a connecting seat 7234, and the connecting seat 7234 is rotatably set on a rotating seat 7232 to form a connecting rod mechanism. The connecting mechanism has a simple structure, high reliability, high load and good economy.

[0074] like Fig.10 As shown, the connection seat 7234 of this embodiment specifically includes: a fixed block 7235, a first support plate 7236, a second support plate 7237 and a hinge block 7238. The fixed block 7235 is provided with a through hole, through which the rotating shaft 7233 is matched and fixed, the fixed block 7235 is welded and fixed to the first support plate 7236, the first support plate 7236 is arranged in the up-down direction, the second support plate 7237 is arranged in the left-right direction, the first support plate 7236 and the second support form an L-shaped structure, the hinge block 7238 is welded and fixed on the upper surface of the second support plate 7237, and a joint is welded on the hinge block 7238, which is connected to the piston shaft of the flip cylinder 7231 through the joint. The clamping mechanism 7240 includes a clamping cylinder 7241, one side of which is connected to the side of the first support plate 7236 away from the fixed block 7235, and the upper end of the clamping cylinder 7241 is located below the second support plate 7237, and is connected to the clamping cylinder 7241 through a connecting seat 7234. The connecting seat 7234 can be flipped 90° by pushing the flipping cylinder 7231 in an inclined direction from top to bottom.

[0075] like Figure 8 , Fig. 9 As shown, further, the clamping mechanism 7240 of this embodiment also includes two clamping claws 7243, with clamping piston rods 7242 at both ends of the clamping cylinder 7241, and one side of the clamping cylinder 7241 is connected to the connecting seat 7234; the two clamping claws 7243 are respectively connected to the clamping piston rods 7242 at both ends, and are moved closer to or away from each other by the drive of the clamping cylinder 7241. The clamping claws 7243 are fixed on both sides by the clamping movable rod of the clamping cylinder 7241, so that the clamping claws 7243 at both ends are moved closer to each other to achieve clamping, and moved away from each other to achieve loosening under the drive of the clamping cylinder 7241.

[0076] like Figure 8 , Fig. 9 As shown, further, the clamping claw part 7243 of this embodiment specifically includes: a clamping claw support plate 7244, a clamping claw arm 7245 and a clamping block 7246. The clamping claw support plate 7244 is fixedly connected to the clamping piston rod 7242, the clamping claw arm 7245 is connected to the side of the clamping claw support plate 7244 away from the clamping cylinder 7241, and the clamping block 7246 is connected to the side of the clamping claw arm 7245 facing the clamping cylinder 7241, and a clamping space is formed between the clamping blocks 7246 on both sides to accommodate the gas meter 10. The clamping claw arm 7245 is arranged on the outside of the clamping claw support plate 7244 to increase the size of the clamping space, and the outer wall of the clamped gas meter 10 is avoided, so that the clamping of the gas meter 10 is more stable. The clamping block 7246 is arranged on the inner side of the clamping claw arm 7245 to increase the clamping stability of the clamping claw part 7243.

[0077] like Figure 7 , Figure 8 As shown, further, the second direction driving mechanism 7210 of this embodiment specifically includes: a ball screw linear slide, and the lifting mechanism 7220 is connected to the ball screw linear slide. The drive using the ball screw linear slide is more stable and has high movement positioning accuracy.

[0078] like Figure 7 , Figure 8 As shown, further, the unloading manipulator 7300 of this embodiment has the same structure as the retrieving manipulator 7200. The retrieving manipulator 7200 and the unloading manipulator 7300 can be arranged in parallel with each other, and are respectively arranged above the left and right ends of the workstation line body 7100. The unloading manipulator 7300 and the retrieving manipulator 7200 with the same structure are used, and the parts are shared to make the manufacturing simpler.

[0079] like Figure 7 , Fig.11 As shown, further, the qualified product line 370 of this embodiment has a clamping position, and a lifting mechanism 7110 is set at the clamping position. In the specific structure, since the conveyor belts on both sides of the qualified product line 370 are conveyed synchronously, the lifting mechanism 7110 can be set below the empty space between the conveyor belts on both sides. When the work station tray 301 is transported to the clamping position with the gas meter 10, the work station tray 301 is lifted by the lifting mechanism 7110, so that the gas meter 10 is lifted up to be clamped by the material taking manipulator 7200. After the material taking manipulator 7200 clamps the gas meter 10 on the work station tray 301, the lifting mechanism 7110 descends, so that the work station tray 301 returns to the qualified product line 370 and is continuously conveyed by the qualified product line 370.

[0080] like Figure 7 , Fig.11 As shown, further, the lifting mechanism 7110 of this embodiment specifically includes: a lifting cylinder 7111 and a positioning plate 7112. The lifting cylinder 7111 is arranged on the bracket in the up-down direction. The positioning plate 7112 is connected to the lifting piston rod of the lifting cylinder 7111 and moves up and down through the driving of the lifting cylinder 7111. The gas meter 10 is positioned on the qualified product line 370 for transmission through the work station disk 301. The positioning plate 7112 is used to lift or lower the work station disk 301 located at the clamping position. In the specific structure, a guide column 7113 is also arranged between the positioning plate 7112 and the bracket, so that the positioning plate 7112 can be guided in the up-down direction. A positioning pin 7114 is also arranged on the positioning plate 7112. Through the positioning of the positioning pin 7114, the lifting mechanism 7110 makes the positioning plate 7112 accurately dock with the work station disk 301 during the lifting process.

[0081] Embodiment 2

[0082] The present application proposes a gas meter calibration method, which is applied to the gas meter calibration system as described above, and the method comprises the following steps:

[0083] Step S100: The gas meters to be inspected on the shelf after being placed still are transported to the loading conveyor line through the upper and lower loading and unloading mechanisms.

[0084] Step S200, controlling the loading robot to clamp the gas meter to be inspected on the loading conveyor line and place it in the feeding area on the main line body.

[0085] Step S300: Bind the identification information of the gas meter with the identification information of the workstation tray in the material feeding area, so that the gas meter is installed on the workstation tray.

[0086] Step S400: The gas meter is sequentially passed through several detection areas for detection through the transmission of the main line, and the detected gas meter is obtained in the discharge area.

[0087] The detection process specifically includes: transporting the gas meter to be inspected to the air tightness detection station through the main line body, testing the air tightness of the gas meter, and determining that the gas meter is qualified for air tightness. Transporting the gas meter with qualified air tightness to the indication error detection station through the main line body, testing the accuracy of the displayed value of the gas meter, and determining that the gas meter is qualified for the indication detection. Transporting the gas meter with qualified indication detection to the manual operation station through the main line body, at the manual operation station, transferring the gas meter with qualified indication detection to the station line body, wherein the gas meter is manually operated on the station line body of the manual operation station. The gas meter that has completed manual operation on the station line body is transported back to the main line body.

[0088] Step S500, controlling the unloading robot to clamp the inspected gas meter in the unloading area and place it on the unloading conveyor line.

[0089] Step S600: transport the inspected gas meters on the unloading conveyor line to the shelves through the upper and lower loading and unloading mechanisms.

[0090] In summary, a gas meter calibration system and calibration method of the present application integrates a digital logistics system, an MES system, a metering data processing system, and an automated calibration device to construct an intelligent gas meter calibration laboratory. The laboratory can realize the full process management from the entry of the gas meter into the laboratory to the completion of the test, including laboratory environment control, digital logistics management, visualization of the test process, and fully automatic testing. Through the intelligent detection system, not only the labor intensity of the calibration personnel is greatly reduced, but also the calibration efficiency is significantly improved, the compliance of the gas meter calibration is strengthened, and the quality of the gas meter calibration is ensured.

[0091] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A gas meter calibration system, characterized in that: include: Loading and unloading conveyor lines, the loading and unloading conveyor lines comprising a loading conveyor line and a unloading conveyor line; An upper and lower loading and unloading mechanism, which is arranged on one side of the upper and lower material conveyor line and is used to convey the gas meters to be inspected on the shelf to the upper material conveyor line and / or convey the inspected gas meters on the lower material conveyor line to the shelf; A main line body, which is arranged on one side of the loading and unloading conveyor line and has a feeding area, a discharging area and a plurality of detection areas. The main line body transports the gas meter from the feeding area to the discharging area and performs detection in the plurality of detection areas; A loading robot, the loading robot is used to clamp the gas meter to be inspected on the loading conveyor line and place it in the feeding area, and the feeding area places the gas meter on the work station disk on the main line body and binds it with the corresponding work station disk by number; A material unloading robot is used to clamp the inspected gas meter in the unloading area and place it on the material unloading conveyor line.

2. The gas meter calibration system according to claim 1, characterized in that: The main line body has a first direction and a second direction perpendicular to each other, and the main line body comprises: A first conveying line, wherein the first conveying line is extended along a first direction, and the feeding area is located on the first conveying line; a main input transmission line, the main input transmission line extending along the second direction and located at an output end of the first transmission line; An airtight detection cache line, the input end of which is connected to the main input transmission line; An airtight detection conveying line, the airtight detection conveying line is arranged along a first direction, the input end of the airtight detection conveying line is connected to the airtight detection buffer line, and the output end is connected to the main input transmission line, and an airtight detection station is arranged on the airtight detection conveying line, and the airtight detection station is used to detect the airtightness of the gas meter; An indication error detection cache line, the input end of which is connected to the main input transmission line and is located downstream of the airtight detection transmission line; A plurality of indication error detection conveyor lines, wherein the plurality of indication error detection conveyor lines are all extended along a first direction and are arranged side by side and spaced in a second direction, the input ends of the plurality of indication error detection conveyor lines are all connected to the indication error detection buffer line, and the output ends are all connected to the main input transmission line, and each of the indication error detection conveyor lines is provided with an indication error detection station, and the indication error detection station is used to detect the accuracy of the displayed value of the gas meter; A qualified product line, the qualified product line is extended along the first direction, the input end of the qualified product line is connected to the main input conveying line, and is located downstream of the last indication error detection conveying line; The unqualified sample line is extended along the first direction, the input end of the unqualified sample line is connected to the main input transmission line and is located downstream of the qualified product line.

3. The gas meter calibration system according to claim 2, characterized in that: The main line body further comprises: a main output transmission line, the main output transmission line is extended along the second direction, one end of the main output transmission line is connected to the unqualified sample line and the qualified product line, and the other end is connected to the first transmission line; The discharging area is arranged on the first conveying line and is spaced apart from the feeding area.

4. The gas meter calibration system according to claim 2, characterized in that: The gas meter verification system further comprises: a manual operation station, wherein the manual operation station is arranged on the main line body; Manual operation stations include: A workstation line body, the workstation line body is located on one side of the second direction of the main line body and is used to transport the gas meter along the first direction so that manual operation can be performed; A material taking manipulator, which is arranged along the second direction and is used to flip the gas meter on the main line body and transport it to the work station line body; A material discharging robot is arranged at an interval with the material taking robot in the first direction, and is used to flip the gas meter that has been operated on the work station line body and transport it to the main line body.

5. The gas meter calibration system according to claim 1, characterized in that: The feeding conveyor line includes: a first feeding roller line, a feeding lifting mechanism and a second feeding roller line; The first loading roller line is arranged along a first direction, the second loading roller line is arranged along a second direction, and the loading lifting mechanism lifts the gas meter input by the first loading roller line and transports it to the second loading roller line; The unloading conveying line includes: a first unloading roller line, an unloading lifting mechanism and a second unloading roller line; The first unloading roller line is arranged along the second direction, the second unloading roller line is arranged along the first direction, and the unloading lifting mechanism receives the inspected gas meter input by the first unloading roller line and descends to the second unloading roller line for transportation.

6. The gas meter calibration system according to claim 5, characterized in that: The loading and unloading conveyor line further comprises: a loading and unloading conveyor frame, on which both the loading and unloading conveyor line and the unloading conveyor line are arranged; The first unloading roller line is at the same height as the second loading roller line, and the second unloading roller line is at the same height as the first loading roller line; The unloading conveyor line further includes: an unloading lifting roller line and a third unloading roller line, wherein the unloading lifting roller line is located at the output end of the second unloading roller line, and the third unloading roller line is located below the first loading roller line, and the output end of the third unloading roller line and the input end of the first loading roller line are located on the same side of the upper and lower positions; The unloading lifting roller line is used to receive the inspected gas meters output by the second unloading roller line, and transport them to the third unloading roller line after descending.

7. The gas meter calibration system according to claim 1, characterized in that: The upper and lower loading and unloading mechanism comprises: a conveying part, which can be lifted up and down, and conveying belts are arranged on both sides of the conveying part; A push-pull part is located between the conveyor belts on both sides, and the push-pull part can be lifted and lowered in the conveyor part.

8. The gas meter calibration system according to claim 1, characterized in that: The gas meter verification system further comprises: a static area, the static area being used to place a shelf, on which a gas meter to be inspected is placed; An intelligent transport vehicle is used to transport shelves, so that the shelves with the gas meters to be inspected are moved from the static area to the upper and lower loading and unloading mechanisms.

9. A gas meter calibration method, characterized in that: Applied to the gas meter calibration system according to any one of claims 1 to 8, the method comprises the steps of: The gas meters to be inspected on the shelf after being placed still are transported to the loading conveyor line through the upper and lower loading and unloading mechanisms; Controlling the loading robot to clamp the gas meter to be inspected on the loading conveyor line and place it in the feeding area on the main line body; Binding the identification information of the gas meter to the identification information of the workstation tray in the material feeding area, so that the gas meter is installed on the workstation tray; The gas meter is tested in several testing areas in turn through the transmission of the main line, and the tested gas meter is obtained in the discharge area; Controlling the unloading manipulator to clamp the inspected gas meter in the unloading area and place it on the unloading conveyor line; The inspected gas meters on the unloading conveyor line are transported to the shelves through the upper and lower loading and unloading mechanisms.

10. The gas meter calibration method according to claim 9, characterized in that: The steps of making the gas meter pass through several detection areas in sequence for detection through the transmission of the main line body and obtaining the detected gas meter in the discharge area include: The gas meter to be inspected is transported to the air tightness inspection station through the main line body, and the air tightness of the gas meter is inspected to determine whether the air tightness of the gas meter is qualified; The gas meter with qualified air tightness is transported to the indication error detection station through the main line body, and the accuracy of the displayed value of the gas meter is detected to determine whether the indication value of the gas meter is qualified; The gas meter with qualified indication detection is transported to the manual operation station through the main line body, and the gas meter with qualified indication detection is transferred to the station line body at the manual operation station, wherein the gas meter is operated manually on the station line body of the manual operation station; The gas meter that has completed manual work on the workstation line body is transported back to the main line body.

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