Multi-compatible intelligent electric meter withstand voltage test device

Abstract

The invention discloses a multi-compatible intelligent electric meter withstand voltage test device, which comprises a rack, a single-phase wire dismounting and connecting mechanism, a three-phase wire dismounting and connecting mechanism, a terminal wire dismounting and connecting mechanism, a jacking positioning mechanism and an electric test mechanism, and is characterized in that the single-phase wire dismounting and connecting mechanism, the three-phase wire dismounting and connecting mechanism and the terminal wire dismounting and connecting mechanism are located on the same plane of the rack; the inlet of the rack is provided with an identification module for identifying the type of the electric energy meter, the rack is also provided with an electric measurement mechanism and a conveying line for conveying the electric energy meter, the middle part of the conveying line is provided with a hollow part, and the jacking positioning mechanism lifts and drives the electric energy meter to one side of the corresponding wire dismounting and connecting mechanism in the hollow part; the device can be compatible with three different phenotypes of a single-phase electric energy meter, a three-phase electric energy meter and a terminal electric energy meter, and can meet the withstand voltage test requirements of the three phenotypes.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy meter testing, and particularly to a multi-compatible intelligent electric energy meter withstand voltage testing device. Background Art

[0002] In the field of intelligent manufacturing of electric energy meters, the withstand voltage test is a key quality control link, and its detection accuracy and safety directly affect the product qualification rate and use reliability.

[0003] For an assembly line with the operation requirements of multiple types of electric energy meters, the withstand voltage test is a very important link to judge whether the electric energy meter is qualified. Now, more and more enterprises use automated equipment to replace manual operation for the withstand voltage test, which can effectively improve the test efficiency, reduce the probability of errors, and enhance the safety.

[0004] At present, most enterprises use manual operation for the withstand voltage test of electric energy meters, which is prone to safety hazards and has low test accuracy. Therefore, it is very necessary to design a new type of reliable, convenient, safe and adaptive withstand voltage test device to adapt to different types of electric energy meters and meet the withstand voltage test requirements of different meter models from various manufacturers. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a multi-compatible intelligent electric energy meter withstand voltage testing device, which can be compatible with three different meter models, namely single-phase electric energy meters, three-phase electric energy meters and terminal electric energy meters, and can meet the withstand voltage test requirements of these three meter models.

[0006] The present invention adopts the following technical solutions:

[0007] A multi-compatible intelligent electric energy meter withstand voltage testing device includes a frame, a single-phase wire connecting and disconnecting mechanism, a three-phase wire connecting and disconnecting mechanism, a terminal wire connecting and disconnecting mechanism, a lifting and positioning mechanism and an electrical measurement mechanism. The single-phase wire connecting and disconnecting mechanism, the three-phase wire connecting and disconnecting mechanism and the terminal wire connecting and disconnecting mechanism are located on the same plane of the frame. An identification module for identifying the type of electric energy meter is provided at the entrance of the frame. An electrical measurement mechanism and a conveyor line for transporting the electric energy meter are also provided on the frame. The middle part of the conveyor line has a hollow part. The lifting and positioning mechanism drives the electric energy meter to rise and fall in the hollow part to the side of the corresponding wire connecting and disconnecting mechanism. Through the coordinated cooperation of the three types of wire connecting and disconnecting mechanisms (single-phase / three-phase / terminal) and the identification module, different specifications of electric energy meters (single-phase meters, three-phase meters, terminal meters) can be automatically identified and adapted, realizing flexible testing with one machine for multiple purposes, and solving the problem of low test efficiency caused by the single model of traditional equipment. The coordinated design of the conveyor line and the lifting and positioning mechanism realizes the automatic positioning and station switching of the electric energy meter, improving the automation degree and test efficiency of the test process. The hollow part structure optimizes the space utilization rate and ensures the seamless connection between the lifting process and the conveyor line.

[0008] Preferably, two single-phase disconnection and connection mechanisms are arranged opposite to each other, and a first station is formed between the two single-phase disconnection and connection mechanisms. Two three-phase disconnection and connection mechanisms and two terminal disconnection and connection mechanisms are arranged opposite to each other with a dislocation, and a second station is formed therebetween. Lifting and positioning mechanisms are provided on both the first station and the second station. Through the parallel layout design of the first station and the second station, it supports the synchronous testing of single-phase meters and three-phase / terminal meters; the dislocation structure avoids mechanism interference and is also convenient for the simultaneous testing of two three-phase electric energy meters or two terminal electric energy meters. The dual-station configuration of the lifting and positioning mechanism realizes the physical isolation of the testing paths of multiple types of electric meters, significantly improves the equipment throughput, and reduces the testing cycle.

[0009] Preferably, the lifting and positioning mechanism includes a lifting mounting plate, a lifting cylinder arranged on the lifting mounting plate, and a positioning plate arranged at the output end of the lifting cylinder.

[0010] Preferably, two tray support columns, two tray positioning columns and two grounding components are provided on the positioning plate; the two tray support columns and tray positioning columns are arranged at the four corners of the positioning plate in a dislocation manner. A four-point positioning mechanism is formed by the tray support columns and the tray positioning columns to form a mechanical positioning reference surface and improve the positioning accuracy of the tray; the grounding component integrates an anti-static protection circuit to establish a reliable grounding loop before the withstand voltage test and effectively avoid the risk of ESD damage.

[0011] Preferably, the single-phase disconnection and connection mechanism includes a single-phase pin bottom plate, a plurality of single-phase fixing seats, and a first driving cylinder. The plurality of single-phase fixing seats are connected by a connecting plate and are slidably matched on the single-phase pin bottom plate. A single-phase meter tray is provided on the single-phase fixing seat. The first driving cylinder is arranged on the single-phase pin bottom plate through a cylinder fixing seat, and the driving end of the first driving cylinder has a first cylinder connecting rod connected to the connecting plate.

[0012] Preferably, an installation support is provided on the single-phase pin bottom plate, and a tray base guide shaft is provided on the installation support. The single-phase fixing seat is slidably matched with the tray base guide shaft through a moving hole to improve the moving stability of the single-phase fixing seat.

[0013] Preferably, the three-phase disconnection and connection mechanism includes a three-phase pin bottom plate, a three-phase meter tray fixing seat, a second driving cylinder, and a third driving cylinder. The second driving cylinder is connected to the three-phase pin bottom plate through a cylinder fixing seat, and the driving end of the second driving cylinder is connected to the three-phase meter tray fixing seat through a second cylinder connecting rod. A three-phase switching cylinder mounting plate and a three-phase meter tray are provided on the three-phase meter tray fixing seat. A third driving cylinder is provided on the three-phase switching cylinder mounting plate, and the third driving cylinder is connected to the voltage and current pins of the three-phase meter tray.

[0014] Preferably, the terminal disconnection and connection mechanism includes a terminal pin base plate, a terminal table support fixing seat, a fourth driving cylinder, and a fifth driving cylinder. The fourth driving cylinder is connected to the terminal pin base plate through a cylinder fixing seat. The driving end of the fourth driving cylinder is connected to the terminal table support fixing seat through a third cylinder connecting rod. A terminal switching cylinder mounting plate and a terminal table support are provided on the terminal table support fixing seat. A fifth driving cylinder is provided on the terminal switching cylinder mounting plate, and the fifth driving cylinder is connected to the voltage and current pins of the terminal table support.

[0015] Preferably, a tray is provided on the conveyor line. The tray includes a tray body, and the surface of the tray body has a receiving groove. A main partition and a sub-partition perpendicular to the main partition are provided on the receiving groove. The tray is approximately square, has a first side and an adjacent second side. When the tray moves along the conveyor line, it has a first orientation and a second orientation, can be compatible with multiple types of electric energy meters, and the tray can be rotated by a lifting and turning mechanism to realize two-way entry into the testing device.

[0016] Preferably, a conveyor line stop for blocking the tray is provided in front of the lifting and positioning mechanism to effectively eliminate the inertial displacement of the conveyor line and ensure the static state of the tray during the lifting process.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. The present invention provides a multi-compatible intelligent electric energy meter withstand voltage testing device. Through the coordinated cooperation of the single-phase / three-phase / terminal three types of disconnection and connection mechanisms and the identification module, it can automatically identify and adapt to different specifications of electric energy meters (single-phase meters, three-phase meters, terminal meters), realizing flexible testing with one device and solving the problem of low testing efficiency caused by the single model of traditional equipment.

[0019] 2. The integrated conveyor line, lifting and positioning mechanism, and hollow part structure form a continuous operation process of automatic conveying - identification - positioning - docking of electric energy meters. Compared with the traditional manual handling and wiring method, it greatly improves the transportation and placement efficiency and avoids the potential safety hazards of manual operation.

[0020] 3. The three disconnection and connection mechanisms adopt a planar array layout and share the same testing platform, realizing spatial intensification while ensuring functional independence, greatly reducing the floor area of the equipment, and supporting modular expansion and upgrade.

[0021] 4. The lifting and positioning mechanism has a simple structure and high positioning accuracy, and can cooperate with the tray to realize the lifting and withstand voltage test requirements of three different types of electric energy meters. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of the withstand voltage testing device.

[0023] Figure 2 It is a structural schematic diagram of a single-phase wire disconnection and connection mechanism.

[0024] Figure 3 It is the front view of a single-phase wire disconnection and connection mechanism.

[0025] Figure 4 It is a structural schematic diagram of a three-phase wire disconnection and connection mechanism.

[0026] Figure 5 It is the front view of a three-phase wire disconnection and connection mechanism.

[0027] Figure 6 It is a structural schematic diagram of a terminal wire disconnection and connection mechanism.

[0028] Figure 7 It is the front view of a terminal wire disconnection and connection mechanism.

[0029] Figure 8 It is a structural schematic diagram of a lifting and positioning mechanism.

[0030] Figure 9 It is the front view of a lifting and positioning mechanism.

[0031] Figure 10 It is the front view of a tray.

[0032] Figure 11 It is a structural schematic diagram of a tray.

[0033] In the figure, single-phase wire disconnection and connection mechanism 1, single-phase pin base plate 1-1, single-phase fixed seat 1-2, first driving cylinder 1-3, connecting plate 1-4, single-phase meter support 1-5, first cylinder connecting rod 1-6, mounting support 1-7, meter support base guide shaft 1-8, three-phase wire disconnection and connection mechanism 2, three-phase pin base plate 2-1, three-phase meter support fixed seat 2-2, second driving cylinder 2-3, third driving cylinder 2-4, second cylinder connecting rod 2-5, three-phase switching cylinder mounting plate 2-6, three-phase meter support 2-7, terminal wire disconnection and connection mechanism 3, terminal pin base plate 3-1, terminal meter support fixed seat 3-2, fourth driving cylinder 3-3, fifth driving cylinder 3-4, third cylinder connecting rod 3-5, terminal switching cylinder mounting plate 3-6, terminal meter support 3-7, lifting and positioning mechanism 4, lifting mounting plate 4-1, lifting cylinder 4-2, positioning plate 4-3, tray support column 4-4, tray positioning column 4-5, grounding component 4-6, floating joint 4-7, linear bearing 4-8, guide shaft 4-9, electrical measurement mechanism 5, tray 6, tray body 6-1, accommodation groove 6-2, main partition 6-3, sub partition 6-4, first side 6-5, second side 6-6. Detailed implementation manners

[0034] For the convenience of understanding the technical solution of the present invention, the following is a detailed description in combination with the accompanying drawings and specific embodiments.

[0035] Example 1

[0036] As Figure 1 shown, a multi-compatible withstand voltage test device for smart meters includes a frame, a single-phase wiring disconnection mechanism 1, a three-phase wiring disconnection mechanism 2, a terminal wiring disconnection mechanism 3, a lifting and positioning mechanism 4, and an electrical measurement mechanism 5;

[0037] The single-phase wiring disconnection mechanism 1, the three-phase wiring disconnection mechanism 2, and the terminal wiring disconnection mechanism 3 are located on the same plane of the frame. The three wiring disconnection mechanisms adopt a planar array layout and share the same test platform, achieving spatial intensification while ensuring functional independence, greatly reducing the floor area of the equipment, and supporting modular expansion and upgrade;

[0038] An identification module for identifying the type of the electricity meter is provided at the entrance of the frame, which can identify whether the electricity meter at the current position is a single-phase, three-phase, or terminal electricity meter;

[0039] An electrical measurement mechanism 5 and a conveyor line for transporting the electricity meter are also provided on the frame. The middle part of the conveyor line has a hollow part, and the lifting and positioning mechanism 4 drives the electricity meter to rise and fall in the hollow part to the side of the corresponding wiring disconnection mechanism; The collaborative design of the conveyor line and the lifting and positioning mechanism realizes the automatic positioning and station switching of the electricity meter, improving the automation degree and test efficiency of the test process; The hollow part structure optimizes the space utilization rate and ensures the seamless connection between the lifting process and the conveyor line;

[0040] Through the collaborative cooperation of setting three types of single-phase / three-phase / terminal wiring disconnection mechanisms and the identification module, the present invention can automatically identify and adapt to different specifications of electricity meters (single-phase meters, three-phase meters, terminal electricity meters), realizing flexible testing with one machine for multiple purposes, and solving the problem of low test efficiency caused by the single model of traditional equipment.

[0041] Two single-phase wiring disconnection mechanisms 1 are arranged oppositely, and a first station is formed between the two single-phase wiring disconnection mechanisms 1. Two three-phase wiring disconnection mechanisms 2 and two terminal wiring disconnection mechanisms 3 are arranged oppositely in a staggered manner and a second station is formed between them. The lifting and positioning mechanism 4 is provided at both the first station and the second station; Explaining from the running direction of the electricity meter, single-phase wiring disconnection mechanisms 1 are provided on both the left and right sides of the first station near the entrance of the frame. On the left side of the second station near the exit of the frame, there are a terminal wiring disconnection mechanism 3 and a three-phase wiring disconnection mechanism 2 in sequence. On the right side of the second station near the exit of the frame, there are a three-phase wiring disconnection mechanism 2 and a terminal wiring disconnection mechanism 3 in sequence; Through the parallel layout design of the first station and the second station, it supports the synchronous testing of single-phase meters and three-phase / terminal meters; The staggered structure avoids mechanism interference and is also convenient for the simultaneous testing of two three-phase electricity meters or two terminal electricity meters. The dual-station configuration of the lifting and positioning mechanism realizes the physical isolation of the test paths for multiple types of electricity meters, significantly improving the equipment throughput and reducing the test cycle.

[0042] As Figures 10 - 11 shown, a tray 6 is provided on the conveyor line. The lifting and positioning mechanism 4 is used to lift the tray 6 on the conveyor line to the corresponding wire disconnection and connection mechanism. The tray 6 includes a tray body 6-1. The surface of the tray body 6-1 has a receiving groove 6-2. A main partition 6-3 and a secondary partition 6-4 perpendicular to the main partition 6-3 are provided on the receiving groove 6-2. The main partition 6-3 and the secondary partition 6-4 divide the receiving groove 6-2 into 6 receiving grooves. The tray 6 is approximately square, having a first side 6-5 and an adjacent second side 6-6. When the tray 6 moves along the conveyor line, it has a first orientation and a second orientation, and can be compatible with various types of electric energy meters. Specifically, when the first side 6-5 faces the moving direction of the tray 6 (i.e., the first orientation), one single-phase electric energy meter can be placed in each of the 6 receiving grooves. When the tray 6 moves to the first station, the lifting and positioning mechanism 4 lifts the tray 6 containing the single-phase electric energy meter to one side of the single-phase wire disconnection and connection mechanism 1. When the second side 6-6 faces the moving direction of the tray 6 (i.e., the second orientation), the 6 receiving grooves are divided into two rows, and each row of receiving grooves can accommodate one three-phase electric energy meter or a terminal electric energy meter. When the tray 6 moves to the second station, the lifting and positioning mechanism 4 lifts the tray 6 containing the three-phase electric energy meter or the terminal electric energy meter to one side of the three-phase wire disconnection and connection mechanism 2 or the terminal wire disconnection and connection mechanism 3. In addition, when placing the electric energy meter on the tray 6, it is not necessary to determine the orientation of the tray 6. A lifting and turning mechanism can be provided below the conveyor line near the identification module at the entrance of the rack, and the orientation of the tray 6 can be adjusted according to the identified type of electric energy meter to achieve two-way entry into the testing device.

[0043] As Figures 8 - 9As shown in the figure, the lifting and positioning mechanism 4 includes a lifting mounting plate 4-1, a lifting cylinder 4-2 disposed on the lifting mounting plate 4-1, and a positioning plate 4-3 disposed at the output end of the lifting cylinder 4-2. The lifting mounting plate 4-1 is disposed on the frame. When the output end of the lifting cylinder 4-2 extends, the positioning plate 4-3 can be lifted, thereby lifting the tray 6. Two tray support columns 4-4, two tray positioning columns 4-5, and two grounding assemblies 4-6 are provided on the positioning plate 4-3, and corresponding positioning holes are provided on the tray 6; the two tray support columns 4-4 and the tray positioning columns 4-5 are arranged at four corners of the positioning plate 4-3 in a staggered manner, and a four-point positioning mechanism is formed by the tray support columns 4-4 and the tray positioning columns 4-5 to form a mechanical positioning reference surface, improving the positioning accuracy of the tray; the grounding assembly integrates an anti-static protection circuit to establish a reliable grounding loop before the withstand voltage test, effectively avoiding the risk of ESD damage. A connection end is provided on the lower surface of the positioning plate 4-3, a floating joint 4-7 is provided on the output end of the lifting cylinder 4-2, and the floating joint 4-7 is connected to the connection end on the lower surface of the positioning plate 4-3. A plurality of linear bearings 4-8 are provided on the lifting mounting plate 4-1, a guide shaft 4-9 is slidably fitted in the linear bearings 4-8, and the guide shaft 4-9 is connected to the positioning plate 4-3.

[0044] When the lifting and positioning mechanism 4 is installed, first, the linear bearings 4-8 are fixed on the lifting mounting plate 4-1 by screws, and then the guide shafts 4-9 are passed through the linear bearings 4-8 and connected to the positioning plate 4-3 by screws; the lifting cylinder 4-2 is fixed on the lifting mounting plate 4-1 by screws, and the L-type speed control valve is connected to the air inlet and outlet of the lifting cylinder 4-2, and the floating joint 4-7 is connected to the movable rod of the lifting cylinder 4-2; finally, the tray support columns 4-4, the tray positioning columns 4-5, and the grounding assemblies 4-6 are fixed on the positioning plate 4-3 by screws.

[0045] As Figures 2 - 3 As shown in the figure, the single-phase wire disconnecting and connecting mechanism 1 includes a single-phase pin base plate 1-1, a plurality of single-phase fixing seats 1-2, and a first driving cylinder 1-3. The plurality of single-phase fixing seats 1-2 are connected by a connecting plate 1-4 and are slidably fitted on the single-phase pin base plate 1-1. A single-phase meter support 1-5 is provided on the single-phase fixing seat 1-2, and voltage and current pins connected to a voltmeter are provided on the single-phase meter support 1-5. The first driving cylinder 1-3 is disposed on the single-phase pin base plate 1-1 through a cylinder fixing seat. The driving end of the first driving cylinder 1-3 has a first cylinder connecting rod 1-6 connected to the connecting plate 1-4. An installation support 1-7 is provided on the single-phase pin base plate 1-1, and a meter support base guide shaft 1-8 is provided on the installation support 1-7. The single-phase fixing seat 1-2 is slidably fitted with the meter support base guide shaft 1-8 through a moving hole, improving the moving stability of the single-phase fixing seat 1-2.

[0046] When the single-phase wiring disconnection and connection mechanism 1 is installed, first pass the meter support base guide shaft 1-8 through the single-phase fixed seat 1-2 and the single-phase pin base plate 1-1 and connect it to the mounting support 1-7; fix the first driving cylinder 1-3 to the cylinder fixed seat with screws, then fix the cylinder fixed seat to the single-phase pin base plate 1-1 with screws, screw the threaded side of the first cylinder connecting rod 1-6 onto the telescopic rod of the first driving cylinder 1-3, embed the first cylinder connecting rod 1-6 into the card slot of the connecting plate 1-4 and then fix the three single-phase fixed seats 1-2 with screws, fix the L-shaped speed regulating valve to the first driving cylinder 1-3, fix the backing plate to the single-phase pin base plate 1-1 with screws, and finally fix the single-phase meter support 1-5 to the three single-phase fixed seats 1-2 with screws respectively. Put the positioning pin into the positioning pin holes of the single-phase meter support 1-5 and the single-phase fixed seat 1-2. The connection of each part must be firm and reliable, and the sliding movement of the single-phase fixed seat 1-2 must be smooth and stable without jamming.

[0047] As Figures 4 - 5 shown, the three-phase wiring disconnection and connection mechanism 2 includes a three-phase pin base plate 2-1, a three-phase meter support fixed seat 2-2, a second driving cylinder 2-3 and a third driving cylinder 2-4. The second driving cylinder 2-3 is connected to the three-phase pin base plate 2-1 through a cylinder fixed seat. The driving end of the second driving cylinder 2-3 is connected to the three-phase meter support fixed seat 2-2 through a second cylinder connecting rod 2-5. A three-phase switching cylinder mounting plate 2-6 and a three-phase meter support 2-7 are provided on the three-phase meter support fixed seat 2-2. A third driving cylinder 2-4 is provided on the three-phase switching cylinder mounting plate 2-6. The third driving cylinder 2-4 is connected to the voltage and current pins of the three-phase meter support 2-7.

[0048] When the three-phase wiring disconnection and connection mechanism 2 is installed, first pass the three-phase meter support base guide shaft through the three-phase meter support fixed seat 2-2 and the three-phase pin base plate 2-1 and fix it with screws; fix the second driving cylinder 2-3 to the cylinder seat with screws, then fix the cylinder seat to the three-phase pin base plate 2-1 with screws, screw the threaded side of the second cylinder connecting rod 2-5 onto the telescopic rod of the second driving cylinder 2-3, embed the second cylinder connecting rod 2-5 into the card slot of the three-phase meter support fixed seat 2-2 for fixation, and fix the L-shaped speed regulating valve to the second driving cylinder 2-3; install the three-phase switching cylinder mounting plate 2-6 to the three-phase meter support fixed seat 2-2 with screws, then fix the third driving cylinder 2-4 to the three-phase switching cylinder mounting plate 2-6 with screws, and then fix the three-phase switching cylinder connecting plate to the three-phase meter support 2-7 and the third driving cylinder 2-4 with screws. The L-shaped speed regulating valve is fixed to the air inlet and outlet of the third driving cylinder 2-4; finally, connect the three-phase meter support 2-7 to the three-phase meter support fixed seat 2-2. The connection of each part must be firm and reliable, and the sliding movement of the three-phase meter support fixed seat 2-2 must be smooth and stable without jamming.

[0049] AsFigures 6 - 7 As shown in Figures 6 - 7 , the terminal disconnection and connection mechanism 3 includes a terminal pin base plate 3-1, a terminal meter support fixing seat 3-2, a fourth driving cylinder 3-3, and a fifth driving cylinder 3-4. The fourth driving cylinder 3-3 is connected to the terminal pin base plate 3-1 through a cylinder fixing seat. The driving end of the fourth driving cylinder 3-3 is connected to the terminal meter support fixing seat 3-2 through a third cylinder connecting rod 3-5. A terminal switching cylinder mounting plate 3-6 and a terminal meter support 3-7 are provided on the terminal meter support fixing seat 3-2. A fifth driving cylinder 3-4 is provided on the terminal switching cylinder mounting plate 3-6. The fifth driving cylinder 3-4 is connected to the voltage and current pins of the terminal meter support 3-7.

[0050] When the terminal disconnection and connection mechanism 3 is installed, first, pass the guide shaft of the terminal meter support base through the terminal meter support fixing seat 3-2 and the terminal pin base plate 3-1 and fix it with screws; fix the fourth driving cylinder 3-3 on the cylinder seat with screws, then fix the cylinder seat on the terminal pin base plate 3-1 with screws. Screw the threaded side of the third cylinder connecting rod 3-5 onto the telescopic rod of the fourth driving cylinder 3-3, embed the third cylinder connecting rod 3-5 into the card slot of the terminal meter support fixing seat 3-2 for fixation, and fix the L-shaped speed regulating valve on the fourth driving cylinder 3-3; install the terminal switching cylinder mounting plate 3-6 on the terminal meter support fixing seat 3-2 with screws, then fix the fifth driving cylinder 3-4 on the terminal switching cylinder mounting plate 3-6 with screws, and then fix the terminal switching cylinder connecting plate on the terminal meter support 3-7 and the fifth driving cylinder 3-4 with screws. The L-shaped speed regulating valve is fixed at the air inlet and outlet of the fifth driving cylinder 3-4; finally, fix the terminal meter support 3-7 on the terminal meter support fixing seat 3-2 with screws. The connection of each part must be firm and reliable, and the sliding action of the terminal meter support fixing seat 3-2 must be smooth and stable without jamming.

[0051] In front of the lifting and positioning mechanism 4, there is a stop for the conveying line of the blocking tray 6, effectively eliminating the inertial displacement of the conveying line and ensuring the static state of the tray during the lifting process.

[0052] When the withstand voltage test device of the present application is in use, after the conveying line stops the tray 6 in place at the entrance of the rack, in the first step, the main control software of the identification module identifies and marks the type of the meter, such as single-phase meter, three-phase meter, terminal meter, etc.; in the second step, the conveying line conveys the tray 6 to a specified position, such as the first station or the second station; in the third step, the lifting cylinder 4-2 of the lifting and positioning mechanism 4 extends to position the tray 6. In the fourth step, the disconnection and connection mechanism performs crimping, and then the software powers on and sends a withstand voltage test command. The test data is collected by the electrical measurement mechanism 5; after the test is completed, the software records the test data to judge whether the test is qualified. The disconnection and connection mechanism retracts the pins, the lifting and positioning mechanism 4 retracts and the tray 6 falls back to the conveying line, and finally the conveying line sends out the withstand voltage test device to complete the test process.

[0053] The above are only the preferred embodiments of the present invention. The protection scope of the present invention shall be subject to the scope defined by the claims. Several improvements and refinements made by those skilled in the art without departing from the spirit and scope of the present invention shall also be regarded as within the protection scope of the present invention.

Claims

1. A multi-compatible withstand voltage test device for intelligent electricity meters, characterized in that, It includes a frame, a single-phase wire disconnection and connection mechanism (1), a three-phase wire disconnection and connection mechanism (2), a terminal wire disconnection and connection mechanism (3), a lifting and positioning mechanism (4), and an electrical measurement mechanism (5). The single-phase wire disconnection and connection mechanism (1), the three-phase wire disconnection and connection mechanism (2), and the terminal wire disconnection and connection mechanism (3) are located on the same plane of the frame. An identification module for identifying the type of electric energy meter is provided at the entrance of the frame. An electrical measurement mechanism (5) and a conveyor line for transporting the electric energy meter are also provided on the frame. The middle part of the conveyor line has a hollow part. The lifting and positioning mechanism (4) lifts and drives the electric energy meter in the hollow part to one side of the corresponding wire disconnection and connection mechanism.

2. The multi-compatible intelligent electricity meter withstand voltage test device according to claim 1, characterized in that, Two single-phase wire disconnection and connection mechanisms (1) are arranged oppositely, and a first working station is formed between the two single-phase wire disconnection and connection mechanisms (1). Two three-phase wire disconnection and connection mechanisms (2) and two terminal wire disconnection and connection mechanisms (3) are arranged oppositely in a staggered manner, and a second working station is formed between them. The lifting and positioning mechanism (4) is provided on both the first working station and the second working station.

3. The multi-compatible intelligent electricity meter withstand voltage test device according to claim 1, characterized in that, The lifting and positioning mechanism (4) includes a lifting mounting plate (4-1), a lifting cylinder (4-2) arranged on the lifting mounting plate (4-1), and a positioning plate (4-3) arranged at the output end of the lifting cylinder (4-2).

4. The multi-compatible intelligent electricity meter withstand voltage test device according to claim 3, characterized in that, Two tray support columns (4-4), two tray positioning columns (4-5), and two grounding components (4-6) are provided on the positioning plate (4-3); the two tray support columns (4-4) and the tray positioning columns (4-5) are arranged at the four corners of the positioning plate (4-3) in a staggered manner.

5. The multi-compatible smart meter withstand voltage test device according to claim 1, characterized in that, The single-phase wire disconnection and connection mechanism (1) includes a single-phase pin bottom plate (1-1), a plurality of single-phase fixing seats (1-2), and a first driving cylinder (1-3). The plurality of single-phase fixing seats (1-2) are connected by a connecting plate (1-4) and are slidably fitted on the single-phase pin bottom plate (1-1). A single-phase meter tray (1-5) is provided on the single-phase fixing seat (1-2). The first driving cylinder (1-3) is arranged on the single-phase pin bottom plate (1-1) through a cylinder fixing seat. The driving end of the first driving cylinder (1-3) has a first cylinder connecting rod (1-6) connected to the connecting plate (1-4).

6. The multi-compatible intelligent electricity meter withstand voltage test device according to claim 5, characterized in that, An installation support (1-7) is provided on the single-phase pin bottom plate (1-1). A meter tray base guide shaft (1-8) is provided on the installation support (1-7). The single-phase fixing seat (1-2) is slidably fitted with the meter tray base guide shaft (1-8) through a moving hole.

7. The multi-compatible smart meter withstand voltage test device according to claim 1, characterized in that, The three-phase connection and disconnection mechanism (2) includes a three-phase pin base plate (2-1), a three-phase meter support fixing seat (2-2), a second driving cylinder (2-3), and a third driving cylinder (2-4). The second driving cylinder (2-3) is connected to the three-phase pin base plate (2-1) through a cylinder fixing seat. The driving end of the second driving cylinder (2-3) is connected to the three-phase meter support fixing seat (2-2) through a second cylinder connecting rod (2-5). A three-phase switching cylinder mounting plate (2-6) and a three-phase meter support (2-7) are provided on the three-phase meter support fixing seat (2-2). A third driving cylinder (2-4) is provided on the three-phase switching cylinder mounting plate (2-6). The third driving cylinder (2-4) is connected to the voltage and current pins of the three-phase meter support (2-7).

8. The multi-compatible intelligent electricity meter withstand voltage test device according to claim 1, characterized in that The terminal connection and disconnection mechanism (3) includes a terminal pin base plate (3-1), a terminal meter support fixing seat (3-2), a fourth driving cylinder (3-3), and a fifth driving cylinder (3-4). The fourth driving cylinder (3-3) is connected to the terminal pin base plate (3-1) through a cylinder fixing seat. The driving end of the fourth driving cylinder (3-3) is connected to the terminal meter support fixing seat (3-2) through a third cylinder connecting rod (3-5). A terminal switching cylinder mounting plate (3-6) and a terminal meter support (3-7) are provided on the terminal meter support fixing seat (3-2). A fifth driving cylinder (3-4) is provided on the terminal switching cylinder mounting plate (3-6). The fifth driving cylinder (3-4) is connected to the voltage and current pins of the terminal meter support (3-7).

9. The multi-compatible intelligent electricity meter withstand voltage test device according to claim 1, characterized in that, A tray (6) is provided on the conveyor line. The tray (6) includes a tray body (6-1). The surface of the tray body (6-1) has a receiving groove (6-2). A main partition (6-3) and a sub-partition (6-4) perpendicular to the main partition (6-3) are provided on the receiving groove (6-2). The tray (6) is approximately square, having a first side and an adjacent second side. The tray (6) has a first orientation and a second orientation when moving along the conveyor line.

10. The multi-compatible intelligent electricity meter withstand voltage test device according to claim 1, characterized in that, There is a conveyor line stop in front of the lifting and positioning mechanism (4) to block the tray (6).

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