Automatic device and method for testing performance of ultrasonic gas meter

Abstract

The invention relates to an automatic device and method for testing the performance of an ultrasonic gas meter. The automatic device comprises a rack, the at least one performance testing mechanism is fixedly arranged on the rack and is used for detecting the gas meter; the feeding mechanism is fixedly arranged on the rack and is used for orderly conveying the gas meters to be detected; the pressing block device and the pushing device are arranged on the detection frame, and when the test air cylinder drives the probe mounting plate to descend, the pushing device pushes the pushing block to drive the tray to move upwards; and the ascending and descending are accurately positioned through the cylinder, and the probe on the probe mounting plate is in contact with the probe insertion hole in the probe adapter, so that the detection consistency is maintained, the subjective judgment difference in the process is saved, the working hours are reduced, the human input is reduced, the enterprise cost is reduced, and the enterprise competitiveness is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of ultrasonic gas meter accessories, and in particular relates to an automatic device and method for ultrasonic gas meter performance testing. Background Art

[0002] Ultrasonic gas meter performance testing is a crucial production process for ultrasonic gas meter metering module and valve function assurance, which is related to the accurate measurement of ultrasonic gas meters and the important link of gas control. The ultrasonic gas meter metering module function and valve function testing usually adopts two processes: manual testing tooling and valve testing tooling. Testing staff need to repeatedly take and put the work, which is boring, easy to fatigue, and has high manpower input costs. At the same time, the product testing process does not form an effective test record, which is inconvenient for product traceability. With the continuous popularization of ultrasonic gas meter technology, the market sales volume has increased significantly. In the current social background of difficulty in recruiting workers and labor shortage, it is urgently needed to complete the assembly through automation mechanism to realize the transformation of production mode of machine replacing people.

[0003] Defects and shortcomings of the existing technology: The traditional metering module function test adopts manual homemade tooling, and the test process is purely manual operation, and no effective test records are generated. In addition, the valve function is tested by the test tooling, and the test operation is manual pick-up and placement, and the test data does not generate effective test records. The original metering module and valve function are both manually tested in two positions, during which the leads are repeatedly connected and plugged in, wasting working hours. In addition, the manual connection and plugging operation is labor-intensive, the working hours are long, fatigue is easy to occur, the staff turnover is large, the labor cost is high, and the product quality is unstable.

[0004] In view of the above problems, it is necessary to improve them. Summary of the invention

[0005] The purpose of the present invention is to provide an ultrasonic gas meter performance testing automation device and method with a simple structure, ingenious design, high degree of automation, avoiding dependence on humans, maintaining consistency of actions, saving process plug-in actions, and reducing working hours, thereby reducing manpower investment, reducing enterprise costs, and enhancing enterprise competitiveness.

[0006] In order to achieve the above objectives, the technical solution adopted by the present invention is: an ultrasonic gas meter performance test automation device, including a frame; at least one performance testing mechanism, fixedly mounted on the frame, for testing the gas meter; a feeding mechanism, fixedly mounted on the frame, for orderly transporting the gas meters to be tested.

[0007] As a preferred solution of the present invention, the performance testing mechanism is provided in plurality, and the plurality of performance tests are arranged along the length direction of the rack.

[0008] As a preferred solution of the present invention, the feeding mechanism includes a conveying bracket, a tray, a positioning jig and a conveying motor; a conveying slide rail is arranged on the conveying bracket, the tray is slidably assembled on the conveying slide rail, and the conveying motor is fixed at the end of the conveying bracket to drive the conveying slide rail to move; the positioning jig is fixed on the mobile pallet, and the positioning jig is used to fix the gas meter to be tested; a probe adapter is installed on the positioning jig; and a plurality of probe plug-in holes are formed on the probe adapter.

[0009] As a preferred solution of the present invention, a sensor fixing plate is fixedly provided on the conveying bracket; and a sensor is installed on the sensor fixing plate.

[0010] As a preferred solution of the present invention, the performance testing mechanism includes a detection frame, a protective cover is installed on the detection frame, and a connection cabinet and an electric control cabinet are installed on the frame; a main engine is arranged in the electric control cabinet; the performance testing mechanism is built into the protective cover and the connection cabinet; a touch display, a keyboard and a plurality of buttons are installed on the side of the protective cover; the keyboard, the touch display and the plurality of buttons are electrically connected to the main engine.

[0011] As a preferred solution of the present invention, the detection frame includes a mounting plate, a profile frame fixed on the mounting plate, an upper mounting plate assembled on the profile frame; a controller is installed on the top of the upper mounting plate; a fixed angle is installed between the profile frame and the upper mounting plate; a positioning plate is installed inside the top of the profile frame; a pressing block device for fixing the steel shell of the gas meter is fixed at the bottom of the positioning plate; a test cylinder mounting plate is fixed on one side of the profile frame, a test cylinder is installed on the test cylinder mounting plate, a probe mounting plate is connected to the bottom of the drive shaft of the test cylinder, and a plurality of probes are installed on the probe mounting plate; the plurality of probes are arranged corresponding to the probe plug holes on the probe adapter.

[0012] As a preferred solution of the present invention, the pressing block device includes a left pressing block and a right pressing block; the left pressing block and the right pressing block are fixedly connected and integrally formed.

[0013] As a preferred solution of the present invention, a positioning groove is formed between the left pressing block and the right pressing block; a guiding inclined surface is arranged at the bottom of the left pressing block, and the guiding inclined surface is located at the end of the positioning groove.

[0014] As a preferred solution of the present invention, a plurality of installation grooves opening downward are formed at the bottom of the right pressing block near the positioning groove, and a guide surface with a trumpet-shaped structure is formed at the bottom of the installation groove.

[0015] As a preferred solution of the present invention, the right pressing block is formed with installation inclined surfaces on both sides close to the positioning groove.

[0016] As a preferred solution of the present invention, limiting columns are fixedly provided on both sides of the mounting plate; limiting blocks are vertically installed at the ends of the limiting columns close to one side of the tray; and the limiting columns on both sides are arranged in a staggered manner.

[0017] As a preferred solution of the present invention, a driving cylinder is fixedly provided at the bottom of the mounting plate, and a driving connecting shaft of the driving cylinder passes through the mounting plate to connect to the push plate; two push blocks with conical structures are installed on the push plate, and the two push blocks are arranged alternately. A positioning hole adapted to the push block is formed at the bottom of the tray, and the push plate is driven to move upward by the driving cylinder, and the push block extends into the positioning hole and synchronously drives the tray to move upward.

[0018] As a preferred solution of the present invention, a guide mechanism is installed between the mounting plate and the push plate; the guide mechanism includes at least one guide cylinder and a guide rod; the guide cylinder is fixed to the bottom of the mounting plate, one end of the guide rod is fixed to the bottom of the push plate, and the other end of the guide rod passes through and extends outside the guide cylinder.

[0019] As a preferred scheme of the present invention, a first slide rail and a second slide rail are fixedly provided on the mounting plate; wherein a first slider is slidably mounted on the first slide rail; a first cylinder guide block is mounted on the first slider; a first cylinder and a first sealing pressure head are mounted on the first cylinder guide block; the first sealing pressure head is located on the first cylinder, and first guide rail limit blocks are formed at both ends of the first slide rail; a first driving cylinder is fixedly provided at the bottom of the mounting plate, a first driving shaft of the first driving cylinder is connected to the first cylinder adjustment connecting plate, and the first cylinder adjustment connecting plate passes through the mounting plate to connect the first cylinder guide block; a second slider is slidably mounted on the second slide rail; a second cylinder guide block is mounted on the second slider; a second cylinder and a second sealing pressure head are mounted on the second cylinder guide block; the second sealing pressure head is located on the second cylinder, and second guide rail limit blocks are formed at both ends of the second slide rail; a second driving cylinder is fixedly provided at the bottom of the mounting plate, a second driving shaft of the second driving cylinder is connected to the second cylinder adjustment connecting plate, and the second cylinder adjustment connecting plate passes through the mounting plate to connect the second cylinder guide block.

[0020] As a preferred solution of the present invention, a first assembly hole and a second assembly hole are formed on the push plate; the first assembly hole is used for the first sealing pressure head to pass through, and the second assembly hole is used for the second sealing pressure head to pass through.

[0021] As a preferred solution of the present invention, the performance testing mechanism includes a solenoid valve fixing plate fixed on a frame, on which a plurality of solenoid valves are mounted; the plurality of solenoid valves are electrically connected to a power supply; and the plurality of solenoid valves are connected to the air intake ends of the driving cylinder, the first cylinder, the first driving cylinder, the second cylinder, and the second driving cylinder.

[0022] As a preferred solution of the present invention, the performance testing mechanism includes a valve sealing performance testing device; the valve sealing performance testing device is built into the connection cabinet.

[0023] As a preferred solution of the present invention, the valve sealing performance detection device includes an air supply source, a first air pipe, a pressure sampling tube, a pressure regulating valve, a first fluid control valve, a straight-through three-way air control valve and a second fluid control valve; the air supply source is connected to the pressure regulating valve through the first air pipe, the pressure regulating valve is connected to the first fluid control valve, the first fluid control valve is connected to the three-way air pipe through the pressure sampling tube, and the three-way air pipe is respectively connected with the straight-through three-way air control valve and the second fluid control valve; wherein, the first fluid control valve is connected to the first sealing pressure head, and the second fluid control valve is connected to the second sealing pressure head; the pressure regulating valve, the first fluid control valve and the second fluid control valve are connected to the electric control cabinet through cables.

[0024] As a preferred solution of the present invention, a pressure transmitter is connected to the pressure sampling tube; the pressure transmitter is connected to the electric control cabinet through wires, and during the inflation and detection process, it monitors the pressure in the valve, collects pressure signals, and displays them in real time on the interface of the touch display.

[0025] As a preferred solution of the present invention, the pressure regulating valve is used to adjust the inflation flow rate and display the pressure of the air supply source, and an adjusting knob is provided on the pressure regulating valve.

[0026] An ultrasonic gas meter performance test automation device detection method, the steps are as follows: Step 1: Assemble the metering module and the valve onto the steel shell of the gas meter to form the gas meter to be tested. Place the gas meter on the positioning fixture of the conveying bracket, start the conveying motor, and drive the tray to move on the conveying slide rail through the conveying motor, so as to transport the gas meter to be tested to the inside of the performance testing organization; Step 2: The gas meter enters the protective cover of the performance test organization and is detected and positioned by the sensor; Step 3: The gas meter enters the protective cover, the push plate is driven to move upward by the driving cylinder, the push block extends into the positioning hole, and simultaneously drives the tray to move upward; the gas meter steel shell on the gas meter is positioned by the pressing block device.

[0027] Step 4: The test cylinder located on the profile frame drives the probe mounting plate to move downward, so that the probe on the probe mounting plate is inserted into the probe plug hole on the probe adapter, and the probe is connected to the valve and the metering module, and communication is established while power is supplied; Step 5: The controller sets the test program. The test program conducts data testing with the metering module through the 485 communication protocol to detect whether the metering module is accurate; Step 6: Use the valve sealing performance testing device to test the valve's on / off valve function and test the valve's sealing performance at the same time.

[0028] The beneficial effects of the present invention are: 1. The present invention has a simple structure. By setting up the cooperation between the feeding mechanism and the performance testing mechanism, the metering module and the valve of the gas meter can be tested with high speed and accuracy. Through the special structural design of the feeding mechanism, when the tray of the feeding mechanism rises, the ultrasonic gas meter metering module and the valve are powered through the probe connecting line, and the action consistency is good without manual intervention.

[0029] 2. The detection frame of the present invention is provided with a pressing block device and a pushing device. When the test cylinder drives the probe mounting plate to descend, the pushing device pushes the pushing block to drive the tray to move upward; the rise and fall are precisely positioned by the cylinder, and the probe on the probe mounting plate contacts the probe plug-in hole on the probe adapter to maintain the consistency of the detection, save the subjective judgment difference in the process, save working hours, thereby reducing manpower investment, reducing enterprise costs, and enhancing enterprise competitiveness.

[0030] 3. The present invention realizes the test of valve component function and temperature and pressure of metering module, saves the process and investment of equipment such as computers, saves space, improves efficiency, and fully realizes the automated performance testing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 is a usage state diagram of an embodiment of the present invention; Figure 3 This is a schematic diagram of the connection between the feeding mechanism and the performance testing mechanism of the embodiment of the present invention; Figure 4 It is a structural schematic diagram of a detection frame according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a briquetting device according to an embodiment of the present invention (I); Figure 6 This is a schematic diagram of the structure of the briquetting device according to an embodiment of the present invention (II); Figure 7 This is a schematic diagram of a tray moving upwards through a push plate according to an embodiment of the present invention; Figure 8 This is a structural diagram of a tray moving upwards through a push plate according to an embodiment of the present invention; Fig. 9 This is a partial enlarged view of the detection state of the gas meter in the embodiment of the present invention; Fig.10 This is a state diagram of the movement of the first sealing pressure head according to an embodiment of the present invention; Fig.11 This is a state diagram of the movement of the second sealing pressure head according to an embodiment of the present invention; Fig.12 This is a schematic diagram of the structure of a valve sealing performance detection device according to an embodiment of the present invention; Reference numerals in the figure: detection frame 1, performance testing mechanism 2, probe 3, feeding mechanism 4, frame 5, solenoid valve fixing plate 6, solenoid valve 6-1, valve sealing performance detection device 7, sensor fixing plate 8, guide mechanism 9, sensor 10, protective cover 11, electric control cabinet 12, keyboard 13, touch display 14, button 15, host 16, connection cabinet 17, block device 30, left block 31, right block 32, positioning groove 33, guide slope 34, installation groove 35, Guide surface 36, mounting bevel 37, limit column 38, limit block 39, conveying bracket 40, conveying slide rail 41, tray 42, positioning fixture 43, conveying motor 44, probe adapter 45, probe plug hole 46, positioning hole 47, mounting plate 50, profile frame 51, upper mounting plate 52, controller 53, fixed angle 54, positioning plate 55, test cylinder mounting plate 56, test cylinder 57, drive shaft 58, probe mounting plate 59, drive cylinder 61, drive link Connecting shaft 62, push plate 63, push block 63-1, first slide rail 64, first drive cylinder 64-1, first drive shaft 64-2, first cylinder adjustment connecting plate 64-3, first slider 65, first cylinder guide block 66, first sealing pressure head 67, first guide rail limit block 68, first cylinder 69, air supply source 71, first air pipe 72, pressure sampling pipe 73, pressure regulating valve 74, first fluid control valve 75, second fluid control valve 76, pressure transmitter 77, straight A through-type three-way air-controlled valve 78, a three-way air pipe 79, a guide cylinder 90, a guide rod 91, a second slide rail 92, a second drive cylinder 92-1, a second drive shaft 92-2, a second cylinder adjustment connecting plate 92-3, a second slider 93, a second cylinder guide block 94, a second sealing pressure head 95, a second guide rail limit block 96, a second cylinder 97, a first assembly hole 98, a second assembly hole 99, a gas meter 100, a gas meter steel shell 101, a metering module 102, and a valve 103. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Example: like Figure 1 As shown, Figure 1 It is a structural schematic diagram of an embodiment of the present invention; an ultrasonic gas meter performance test automation device, including a frame 5; at least one performance test mechanism 2, fixedly mounted on the frame 5, for testing the gas meter 100; a feeding mechanism 4, fixedly mounted on the frame 5, for orderly transporting the gas meters 100 to be tested; a plurality of performance test mechanisms 2 are provided, and the plurality of performance test mechanisms 2 are arranged along the length direction of the frame 5.

[0035] The present invention has a simple structure. By setting up the cooperation between the feeding mechanism and the performance testing mechanism, the metering module and the valve of the gas meter can be tested with high speed and accurate detection. Through the special structural design of the feeding mechanism, when the tray of the feeding mechanism rises, the metering module and the valve of the ultrasonic gas meter are powered through the probe connecting line, the action consistency is good, and no manual intervention is required.

[0036] like Figure 2-Figure 3 As shown, Figure 2 is a usage state diagram of an embodiment of the present invention; Figure 3 This is a schematic diagram of the connection between the feeding mechanism and the performance testing mechanism of the embodiment of the present invention; The feeding mechanism 4 includes a conveying bracket 40, a tray 42, a positioning fixture 43 and a conveying motor 44; a conveying slide rail 41 is arranged on the conveying bracket 40, the tray 42 is slidably assembled on the conveying slide rail 41, and the conveying motor 44 is fixed at the end of the conveying bracket 40 to drive the conveying slide rail 41 to move; the positioning fixture 43 is fixed on the moving tray 42, and the positioning fixture 43 is used to fix the gas meter 100 to be tested; a probe adapter 45 is installed on the positioning fixture 43; a plurality of probe plug holes 46 are formed on the probe adapter 45.

[0037] A sensor fixing plate 8 is fixedly mounted on the conveying bracket 40 ; a sensor 10 is mounted on the sensor fixing plate 8 ; the sensor 10 is used to sense the position of the tray 42 .

[0038] like Figure 4 As shown, Figure 4 It is a structural schematic diagram of the detection frame of an embodiment of the present invention; the performance testing mechanism 2 includes a detection frame 1, a protective cover 11 is installed on the detection frame 1, and a connection cabinet 17 and an electric control cabinet 12 are installed on the frame 5; a host 16 is arranged in the electric control cabinet 12; the performance testing mechanism 2 is built into the protective cover 11 and the connection cabinet 17; a touch display 14, a keyboard 13 and a plurality of buttons 15 are installed on the side of the protective cover 11; the keyboard 13, the touch display 14 and the plurality of buttons 15 are electrically connected to the host 16.

[0039] A communication interface is provided on the front of the host 16 and electrically connected to the communication module, and an output end of the host 16 is electrically connected to a receiving end of the touch display 14 .

[0040] The detection frame 1 includes a mounting plate 50, a profile frame 51 fixed on the mounting plate 50, an upper mounting plate 52 is assembled on the profile frame 51; a controller 53 is installed on the top of the upper mounting plate 52; a fixed angle 54 is installed between the profile frame 51 and the upper mounting plate 52; a positioning plate 55 is installed inside the top of the profile frame 51; a pressing block device 30 for fixing the gas meter steel shell 101 is fixed at the bottom of the positioning plate 55; a test cylinder mounting plate 56 is fixed on one side of the profile frame 51, a test cylinder 57 is installed on the test cylinder mounting plate 56, a probe mounting plate 59 is connected to the bottom of the driving shaft 58 of the test cylinder 57, and a plurality of probes 3 are installed on the probe mounting plate 59; the plurality of probes 3 are arranged corresponding to the probe plug holes 46 on the probe adapter 45.

[0041] like Figure 5-Figure 6 As shown, the briquetting device 30 includes a left briquetting block 31 and a right briquetting block 32; the left briquetting block 31 and the right briquetting block 32 are fixedly connected and integrally formed; the structural strength and overall firmness of the briquetting device 30 are improved, and the safety of the use of the briquetting device 30 is further ensured.

[0042] A positioning groove 33 is formed between the left pressing block 31 and the right pressing block 32 ; the positioning groove 33 is used to clamp the gas meter steel shell 101 , and a guiding slope 34 is provided at the bottom of the left pressing block 31 , and the guiding slope 34 is located at the end of the positioning groove 33 .

[0043] A plurality of downwardly opening mounting grooves 35 are formed at the bottom of one side of the right pressure block 32 near the positioning groove 33, and a guide surface 36 with a trumpet-shaped structure is formed at the bottom of the mounting groove 35; the mounting groove 35 is provided to clamp the screws on the steel shell 101 of the gas meter, and the guide surface 36 is used to facilitate the screws to be inserted into the mounting groove 35. Specifically, mounting inclined surfaces 37 are formed on both sides of the right pressure block 32 near the positioning groove 33.

[0044] like Figure 7-Figure 9 As shown, Figure 7 This is a schematic diagram of a tray moving upwards through a push plate according to an embodiment of the present invention; Figure 8 This is a structural diagram of a tray moving upwards through a push plate according to an embodiment of the present invention; Fig. 9 It is a partial enlarged view of the detection state of the gas meter in the embodiment of the present invention; limit columns 38 are fixedly provided on both sides of the mounting plate 50; limit blocks 39 are vertically installed at the ends of the limit columns 38 close to one side of the tray 42; the limit columns 38 on both sides are arranged alternately; the limit columns 38 and the limit blocks 39 are provided to limit the upward movement distance of the tray 42, thereby ensuring the safe detection of the gas meter 100 located in the tray 42.

[0045] A driving cylinder 61 is fixedly provided at the bottom of the mounting plate 50, and a driving connecting shaft 62 of the driving cylinder 61 passes through the mounting plate 50 to connect to the push plate 63; two push blocks 63-1 with a conical structure are installed on the push plate 63, and the two push blocks 63-1 are arranged alternately. A positioning hole 47 matched with the push block 63-1 is formed at the bottom of the tray 42, and the push plate 63 is driven to move upward by the driving cylinder 61, and the push block 63-1 extends into the positioning hole 47 and synchronously drives the tray 42 to move upward.

[0046] A guide mechanism 9 is installed between the mounting plate 50 and the push plate 63; the guide mechanism 9 includes at least one guide cylinder 90 and a guide rod 91; the guide cylinder 90 is fixed to the bottom of the mounting plate 50, one end of the guide rod 91 is fixed to the bottom of the push plate 63, and the other end of the guide rod 91 passes through and extends to the outside of the guide cylinder 90. Through the setting of the guide mechanism 9, the push plate 63 is driven to move upward by starting the driving cylinder 61, thereby improving the stability and safety of the movement of the tray 42.

[0047] like Figure 10-11 As shown, Fig.10 This is a state diagram of the movement of the first sealing pressure head according to an embodiment of the present invention; Fig.11 FIG. 1 is a state diagram of the second sealing pressure head moving in an embodiment of the present invention; a first slide rail 64 and a second slide rail 92 are fixedly provided on the mounting plate 50; wherein a first slider 65 is slidably mounted on the first slide rail 64; a first cylinder guide block 66 is installed on the first slider 65; a first cylinder 69 and a first sealing pressure head 67 are installed on the first cylinder guide block 66; the first sealing pressure head 67 is located on the first cylinder 69, and first guide rail limit blocks 68 are formed at both ends of the first slide rail 64; a first driving cylinder 64-1 is fixedly provided at the bottom of the mounting plate 50, and the first driving cylinder 64 -1's first driving shaft 64-2 is connected to the first cylinder adjusting connecting plate 64-3, and the first cylinder adjusting connecting plate 64-3 passes through the mounting plate 50 to connect to the first cylinder guide block 66; the first driving shaft 64-2 of the first driving cylinder 64-1 drives the first cylinder adjusting connecting plate 64-3 to move, thereby driving the first cylinder guide block 66 and the first sealing pressure head 67 to move; it is used to adjust the connection position of the first sealing pressure head 67 and the metering module 102, so as to provide convenience for the subsequent sealing performance, valve switching time and function, temperature and pressure data.

[0048] A second slide rail 92 is slidably equipped with a second slider 93; a second cylinder guide block 94 is installed on the second slider 93; a second cylinder 97 and a second sealing pressure head 95 are installed on the second cylinder guide block 94; the second sealing pressure head 95 is located on the second cylinder 97, and second guide rail limit blocks 96 are formed at both ends of the second slide rail 92; a second driving cylinder 92-1 is fixedly provided at the bottom of the mounting plate 50, and a second driving shaft 92-2 of the second driving cylinder 92-1 is connected to a second cylinder adjustment connecting plate 92-3, and the second cylinder adjustment connecting plate 92-3 passes through the mounting plate 50 and is connected to the second cylinder guide block 94.

[0049] The second driving shaft 92-2 of the second driving cylinder 92-1 drives the second cylinder adjusting connecting plate 92-3 to move, thereby driving the second cylinder guide block 94 and the second sealing pressure head 95 to move; it is used to adjust the connection position between the second sealing pressure head 95 and the valve 103, providing convenience for the subsequent sealing performance, valve switching time and function.

[0050] A first assembly hole 98 and a second assembly hole 99 are formed on the push plate 63 ; the first assembly hole 98 is used for the first sealing head 67 to pass through, and the second assembly hole 99 is used for the second sealing head 95 to pass through.

[0051] like Fig.12 As shown, Fig.12 It is a schematic diagram of the structure of the valve sealing performance detection device of the embodiment of the present invention; the performance testing mechanism 2 includes a solenoid valve fixing plate 6 fixed on the frame 5, and a plurality of solenoid valves 6-1 are mounted on the solenoid valve fixing plate 6; the plurality of solenoid valves 6-1 are electrically connected to the power supply; the plurality of solenoid valves 6-1 are connected to the air inlet end of the driving cylinder 61, the first cylinder 69, the first driving cylinder 64-1, the second cylinder 97, and the second driving cylinder 92-1. The solenoid valve 6-1 is connected to the driving cylinder 61, the first cylinder 69, the first driving cylinder 64-1, the second cylinder 97, and the second driving cylinder 92-1 to control the air inlet and outlet of the cylinder, and the extension of the cylinder telescopic rod is controlled by the control program.

[0052] The performance testing mechanism 2 includes a valve sealing performance detection device 7; the valve sealing performance detection device 7 is built into the connection cabinet 17; the valve sealing performance detection device 7 includes an air supply source 71, a first air pipe 72, a pressure sampling pipe 73, a pressure regulating valve 74, a first fluid control valve 75, a straight-through three-way air control valve 78 and a second fluid control valve 76; the air supply source 71 is connected to the pressure regulating valve 74 through the first air pipe 72, the pressure regulating valve 74 is connected to the first fluid control valve 75, the first fluid control valve 75 is connected to the three-way air pipe 79 through the pressure sampling pipe 73, and the three-way air pipe 79 is respectively connected with a straight-through three-way air control valve 78 and a second fluid control valve 76; wherein, the first fluid control valve 75 is connected to the first sealing pressure head 67, and the second fluid control valve 76 is connected to the second sealing pressure head 95; the pressure regulating valve 74, the first fluid control valve 75 and the second fluid control valve 76 are connected to the electric control cabinet 12 through cables.

[0053] The pressure sampling tube 73 is connected to a pressure transmitter 77, which is connected to the electric control cabinet 12 through a wire. During the inflation and detection process, the pressure transmitter 77 monitors the pressure in the valve, collects pressure signals, and displays them in real time on the interface of the touch display 14. The pressure regulating valve 74 is used to adjust the inflation flow rate and display the pressure of the gas supply source 71. The pressure regulating valve 74 is provided with an adjustment knob.

[0054] An ultrasonic gas meter performance test automation device detection method, the steps are as follows: Step 1: Assemble the metering module 102 and the valve 103 onto the steel shell 101 of the gas meter to form the gas meter 100 to be tested, place the gas meter 100 on the positioning fixture 43 of the conveying bracket 40, start the conveying motor 44, and drive the tray 42 to move on the conveying slide rail 41 through the conveying motor 44, so as to convey the gas meter 100 to be tested to the inside of the performance testing mechanism 2; Step 2: The gas meter 100 enters the protective cover 11 of the performance testing mechanism 2 and is positioned by the sensor 10; Step 3: The gas meter 100 enters the protective cover 11, the push plate 63 is driven to move upward by the driving cylinder 61, the push block 63-1 extends into the positioning hole 47, and simultaneously drives the tray 42 to move upward; the gas meter steel shell 101 on the gas meter 100 is positioned by the pressing block device 30.

[0055] Step 4: The test cylinder 57 on the profile frame 51 drives the probe mounting plate 59 to move downward, so that the probe 3 on the probe mounting plate 59 is inserted into the probe plug hole 46 on the probe adapter 45, and the probe 3 is connected to the valve 103 and the metering module 102, and communication is established while power is supplied; Step 5: The controller 53 sets a test program, and the test program performs data testing with the metering module 102 through the 485 communication protocol to detect whether the metering module 102 is accurate; Step 6: The valve sealing performance detection device 7 is used to perform a valve opening and closing function test instruction on the valve, and the valve sealing performance is detected at the same time.

[0056] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0057] Although this article uses more figure marks in the figure: detection frame 1, performance testing mechanism 2, probe 3, feeding mechanism 4, frame 5, solenoid valve fixing plate 6, solenoid valve 6-1, valve sealing performance detection device 7, sensor fixing plate 8, guide mechanism 9, sensor 10, protective cover 11, electric control cabinet 12, keyboard 13, touch display 14, button 15, host 16, connection cabinet 17, block device 30, left block 31, right block 32, positioning groove 33, guide slope 34, installation groove 35, guide surface 36, mounting bevel 37, limit column 38, limit block 39, conveying bracket 40, conveying slide rail 41, tray 42, positioning fixture 43, conveying motor 44, probe adapter 45, probe plug hole 46, positioning hole 47, mounting plate 50, profile frame 51, upper mounting plate 52, controller 53, fixed angle 54, positioning plate 55, test cylinder mounting plate 56, test cylinder 57, drive shaft 58, probe mounting plate 59, drive cylinder 61, drive connecting shaft 62 , push plate 63, push block 63-1, first slide rail 64, first drive cylinder 64-1, first drive shaft 64-2, first cylinder adjustment connecting plate 64-3, first slider 65, first cylinder guide block 66, first sealing pressure head 67, first guide rail limit block 68, first cylinder 69, air supply source 71, first air pipe 72, pressure sampling pipe 73, pressure regulating valve 74, first fluid control valve 75, second fluid control valve 76, pressure transmitter 77, straight-through three-way air control valve 78, three The terms such as the vent pipe 79, the guide cylinder 90, the guide rod 91, the second slide rail 92, the second driving cylinder 92-1, the second driving shaft 92-2, the second cylinder adjusting connecting plate 92-3, the second slide block 93, the second cylinder guide block 94, the second sealing pressure head 95, the second guide rail limit block 96, the second cylinder 97, the first assembly hole 98, the second assembly hole 99, the gas meter 100, the gas meter steel shell 101, the metering module 102, the valve 103, etc., but the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. An automatic device for ultrasonic gas meter performance testing, characterized in that: The invention comprises a frame (5); at least one performance testing mechanism (2) fixedly mounted on the frame (5) and used for testing a gas meter (100); a feeding mechanism (4) fixedly mounted on the frame (5) and used for orderly feeding the gas meters (100) to be tested; a plurality of the performance testing mechanisms (2) are provided, and the plurality of performance testing mechanisms (2) are arranged along the length direction of the frame (5); the feeding mechanism (4) comprises a conveying support (40), a tray (42), a positioning fixture (43) and a conveying motor (44); a conveying slide rail (41) is arranged on the conveying support (40), the tray (42) is slidably mounted on the conveying slide rail (41), and the conveying motor (44) is fixedly mounted on the end of the conveying support (40) and used for driving the conveying slide rail (41) to move; the positioning fixture (43) is fixedly mounted on the movable tray (42), and the positioning fixture (43) is used for fixing the gas meter to be tested. A gas meter (100); a probe adapter (45) is installed on the positioning fixture (43); a plurality of probe plug holes (46) are formed on the probe adapter (45); a sensor fixing plate (8) is fixedly provided on the conveying bracket (40); a sensor (10) is installed on the sensor fixing plate (8); the performance testing mechanism (2) comprises a detection frame (1), a protective cover (11) is installed on the detection frame (1), and a connection cabinet (17) and an electric control cabinet (12) are installed on the frame (5); a host (16) is provided in the electric control cabinet (12); the performance testing mechanism (2) is built in the protective cover (11) and the connection cabinet (17); a touch display (14), a keyboard (13) and a plurality of buttons (15) are installed on the side of the protective cover (11); the keyboard (13), the touch display (14) and the plurality of buttons (15) are electrically connected to the host (16).

2. The ultrasonic gas meter performance test automation device according to claim 1, characterized in that: The detection frame (1) comprises a mounting plate (50), a profile frame (51) fixedly mounted on the mounting plate (50), an upper mounting plate (52) mounted on the profile frame (51); a controller (53) mounted on the top of the upper mounting plate (52); a fixing angle (54) mounted between the profile frame (51) and the upper mounting plate (52); a positioning plate (55) mounted inside the top of the profile frame (51); a pressing block device (30) for fixing the steel shell (101) of the gas meter is fixedly mounted on the bottom of the positioning plate (55); a test cylinder mounting plate (56) is fixedly mounted on one side of the profile frame (51), a test cylinder (57) is mounted on the test cylinder mounting plate (56), a probe mounting plate (59) is connected to the bottom of a driving shaft (58) of the test cylinder (57), and a plurality of probes (3) are mounted on the probe mounting plate (59); the plurality of probes (3) are arranged corresponding to the probe plug holes (46) on the probe adapter (45).

3. The ultrasonic gas meter performance test automation device according to claim 2 is characterized in that: The pressing block device (30) comprises a left pressing block (31) and a right pressing block (32); the left pressing block (31) and the right pressing block (32) are fixedly connected and integrally formed; a positioning groove (33) is formed between the left pressing block (31) and the right pressing block (32); a guiding inclined surface (34) is provided at the bottom of the left pressing block (31), and the guiding inclined surface (34) is located at the end of the positioning groove (33).

4. The ultrasonic gas meter performance test automation device according to claim 3 is characterized in that: A plurality of downwardly opening mounting grooves (35) are formed at the bottom of one side of the right pressing block (32) close to the positioning groove (33), and a guide surface (36) with a trumpet-shaped structure is formed at the bottom of the mounting groove (35); mounting inclined surfaces (37) are formed on both sides of the right pressing block (32) close to the positioning groove (33).

5. The ultrasonic gas meter performance test automation device according to claim 2, characterized in that: Limiting columns (38) are fixedly provided on both sides of the mounting plate (50); a limiting block (39) is vertically installed at the end of the limiting column (38) close to one side of the tray (42); the limiting columns (38) on both sides are arranged in a staggered manner; a driving cylinder (61) is fixedly provided at the bottom of the mounting plate (50); a driving connecting shaft (62) of the driving cylinder (61) passes through the mounting plate (50) and is connected to a push plate (63); two push blocks (63-1) with a conical structure are installed on the push plate (63); the two push blocks (63-1) are arranged in a staggered manner, and a space is formed at the bottom of the tray (42) that is aligned with the push blocks (63-1). The push plate (63) is driven by the driving cylinder (61) to move upward, and the push block (63-1) extends into the positioning hole (47) and simultaneously drives the tray (42) to move upward; a guide mechanism (9) is arranged between the mounting plate (50) and the push plate (63); the guide mechanism (9) comprises at least one guide cylinder (90) and a guide rod (91); the guide cylinder (90) is fixedly arranged at the bottom of the mounting plate (50), one end of the guide rod (91) is fixedly arranged at the bottom of the push plate (63), and the other end of the guide rod (91) passes through and extends to the outside of the guide cylinder (90).

6. The ultrasonic gas meter performance test automation device according to claim 2, characterized in that: The mounting plate (50) is fixedly provided with a first slide rail (64) and a second slide rail (92); wherein a first slider (65) is slidably mounted on the first slide rail (64); a first cylinder guide block (66) is mounted on the first slider (65); a first cylinder (69) and a first sealing pressure head (67) are mounted on the first cylinder guide block (66); the first sealing pressure head (67) is located on the first cylinder (69), and first guide rail limit blocks (68) are formed at both ends of the first slide rail (64); a first driving cylinder (64-1) is fixedly provided at the bottom of the mounting plate (50); a first driving shaft (64-2) of the first driving cylinder (64-1) is connected to a first cylinder adjustment connecting plate (64-3), and the first cylinder adjustment connecting plate (64-3) passes through the mounting plate (50) and is connected to the first cylinder guide block (66); a second slider (93) is slidably mounted on the second slide rail (92); A second cylinder guide block (94) is mounted on the second slide block (93); a second cylinder (97) and a second sealing pressure head (95) are mounted on the second cylinder guide block (94); the second sealing pressure head (95) is located on the second cylinder (97); and second guide rail limit blocks (96) are formed at both ends of the second slide rail (92); a second driving cylinder (92-1) is fixedly mounted on the bottom of the mounting plate (50); a second driving shaft (92-2) of the second driving cylinder (92-1) is connected to a second cylinder adjustment connecting plate (92-3); and the second cylinder adjustment connecting plate (92-3) passes through the mounting plate (50) and is connected to the second cylinder guide block (94); a first assembly hole (98) and a second assembly hole (99) are formed on the push plate (63); the first assembly hole (98) is used for the first sealing pressure head (67) to pass through, and the second assembly hole (99) is used for the second sealing pressure head (95) to pass through.

7. The ultrasonic gas meter performance test automation device according to claim 1, characterized in that: The performance testing mechanism (2) comprises a solenoid valve fixing plate (6) fixedly mounted on a frame (5), and a plurality of solenoid valves (6-1) are mounted on the solenoid valve fixing plate (6); the plurality of solenoid valves (6-1) are electrically connected to a power supply; and the plurality of solenoid valves (6-1) are connected to the air inlet ends of the driving cylinder (61), the first cylinder (69), the first driving cylinder (64-1), the second cylinder (97), and the second driving cylinder (92-1).

8. The ultrasonic gas meter performance test automation device according to claim 1, characterized in that: The performance testing mechanism (2) comprises a valve sealing performance testing device (7); the valve sealing performance testing device (7) is built into a connection cabinet (17); the valve sealing performance testing device (7) comprises an air supply source (71), a first air pipe (72), a pressure sampling pipe (73), a pressure regulating valve (74), a first fluid control valve (75), a straight-through three-way air control valve (78) and a second fluid control valve (76); the air supply source (71) is connected to the pressure regulating valve (74) via the first air pipe (72); the pressure regulating valve (74) ) is connected to a first fluid control valve (75), the first fluid control valve (75) is connected to a three-way air pipe (79) via a pressure sampling pipe (73), and the three-way air pipe (79) is respectively connected to a straight-through three-way air control valve (78) and a second fluid control valve (76); wherein the first fluid control valve (75) is connected to a first sealing pressure head (67), and the second fluid control valve (76) is connected to a second sealing pressure head (95); the pressure regulating valve (74), the first fluid control valve (75), and the second fluid control valve (76) are connected to an electric control cabinet (12) via cables.

9. The ultrasonic gas meter performance test automation device according to claim 8, characterized in that: The pressure sampling tube (73) is connected to a pressure transmitter (77); the pressure transmitter (77) is connected to the electric control cabinet (12) via an electric wire, and during the inflation and detection process, the pressure in the valve is monitored by the pressure transmitter, and the pressure signal is collected and displayed in real time on the interface of the touch display (14); the pressure regulating valve (74) is used to adjust the inflation flow rate and display the pressure of the gas supply source (71); the pressure regulating valve (74) is provided with an adjustment knob.

10. A method for detecting an ultrasonic gas meter performance test automation device, characterized in that: The ultrasonic gas meter performance test automation device used in any one of claims 1 to 9 comprises the following steps: Step 1: Assemble the metering module (102) and the valve (103) onto the steel shell (101) of the gas meter to form the gas meter (100) to be tested; place the gas meter (100) on the positioning fixture (43) of the conveying bracket (40); start the conveying motor (44); and drive the tray (42) to move on the conveying slide rail (41) through the conveying motor (44), thereby conveying the gas meter (100) to be tested into the performance testing mechanism (2); Step 2: The gas meter (100) enters the protective cover (11) of the performance testing mechanism (2) and is positioned by detection by the sensor (10); Step 3: The gas meter (100) enters the protective cover (11), the push plate (63) is driven to move upward by the driving cylinder (61), the push block (63-1) extends into the positioning hole (47), and simultaneously drives the tray (42) to move upward; the gas meter steel shell (101) on the gas meter (100) is positioned by the block pressing device (30); Step 4: The test cylinder (57) on the profile frame (51) drives the probe mounting plate (59) to move downward, so that the probe (3) on the probe mounting plate (59) is inserted into the probe plug hole (46) on the probe adapter (45), and the probe (3) is connected to the valve (103) and the metering module (102), and communication is established while power is supplied; Step 5: The controller (53) sets a test program, and the test program performs data testing with the metering module (102) through the 485 communication protocol to detect whether the metering module (102) is accurate; Step 6: Use the valve sealing performance testing device (7) to test the valve's on / off valve function and test the valve's sealing performance at the same time.

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