Withstand voltage testing device for intelligent electric energy meter

Abstract

The utility model discloses an intelligent electric energy meter withstand voltage testing device, which belongs to the field of electric energy meter testing devices and comprises a conveying device, a positioning and placing mechanism, a pressing and fixing device, a testing module and a taking device. The conveying device adopts a belt conveyor; the positioning and placing mechanism is arranged above the input end of the conveying device; the pressing and fixing device comprises a box body, a first air cylinder, a lifting plate, a transverse rod, a vertical rod, a first sliding rod, a first buffer spring, a connecting block, a second sliding rod, a second buffer spring, a pressing block and a baffle. The test module comprises a test circuit and a connecting terminal; the taking device is arranged above the output end of the conveying device, and the vertical rod is located in the middle of the upper portion of the conveying device. The utility model has the advantages that: 1, the test process is more automatic; 2, the structural design is reasonable, and the protection performance is good; 3, an automatic sorting function is achieved; and 4, the work is stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter testing devices, specifically to a smart electricity meter withstand voltage testing device. Background Technology

[0002] Electricity meters must undergo withstand voltage testing before leaving the factory to ensure their long-term safe operation. Currently, withstand voltage testing of smart meters still generally uses traditional manual methods. Operators need to use flexible cables to connect the output terminals of the AC withstand voltage tester to the terminals of the electricity meter. Each meter requires two wiring and disconnection operations, which is labor-intensive, inefficient, and requires testers to wear high-voltage protection equipment, increasing testing costs. In addition, existing automatic withstand voltage testing equipment on the market also suffers from problems such as large size, complex installation, high operational requirements, and the need for the smart meter to be handled twice during the testing process, limiting its application.

[0003] To address the aforementioned issues, some automation attempts have been made in the prior art. For example, patent application number 201620620856.3 discloses an automatic withstand voltage testing device for smart energy meters. This device uses a drive module to automatically fix the smart energy meter with a clamping module, achieving docking with the testing module to complete the withstand voltage test. This solution achieves fully automated operation, reduces manual wiring, improves testing efficiency, and reduces labor intensity, while also being compatible with existing AC withstand voltage testing equipment, avoiding redundant investment. However, there is still room for further optimization and improvement in the device's reliability, its protective performance for smart energy meters, and the automatic sorting of defective products after testing. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the above-mentioned technology and provide a smart energy meter withstand voltage testing device.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is a smart energy meter withstand voltage testing device, including a conveying device, a positioning and placement mechanism, a clamping and fixing device, a testing module, and a picking device;

[0006] The conveying device is a belt conveyor;

[0007] The positioning and placement mechanism is located above the input end of the conveying device;

[0008] The clamping and fixing device includes a box body fixedly connected to the conveyor frame of the conveying device, a cylinder 1 located in the middle of the upper side of the box body, a lifting plate fixedly connected to the rod of the cylinder 1, a horizontal bar fixedly connected to the lifting plate, a vertical bar fixedly connected to one end of the horizontal bar, two slide rods 1 slidably connected to the vertical bar in the vertical direction, a buffer spring 1 sleeved on the slide rod 1, a connecting block fixedly connected to one side of the lower part of the vertical bar, two slide rods 2 slidably connected to the connecting block in the vertical direction, a buffer spring 2 sleeved on the slide rod 2, and a pressure block located at the lower end of the slide rod 2 and fixedly connected to both slide rods 2 simultaneously. A baffle is fixedly connected to the lower end of each slide rod.

[0009] The test module includes a test circuit and a connection terminal disposed on the lower side of the baffle for electrical connection with the smart energy meter under test.

[0010] The picking device is located above the output end of the conveying device, and the vertical rod is located in the upper middle part of the conveying device.

[0011] Furthermore, the positioning and placement mechanism includes a rear stop bar fixedly connected to the conveyor frame of the conveying device and two side stops bar. The two side stops bar are fixedly connected to the side of the rear stop bar near the pressing and fixing device and are symmetrically arranged along the middle of the rear stop bar. The two side stops bar are inclined outward relative to each other, and the shortest distance between the two side stops bar is adapted to the width of the smart energy meter.

[0012] Furthermore, the cylinder body of cylinder one is fixedly connected to the housing, one end of buffer spring one is fixedly connected to the vertical rod, the other end of buffer spring one is fixedly connected to the baffle, one end of buffer spring two is fixedly connected to the connecting block, and the other end of buffer spring two is fixedly connected to the pressure block.

[0013] Furthermore, the test circuit is located inside the enclosure, and the connection terminals include a first connection terminal fixedly installed on the lower side of one baffle and a second connection terminal fixedly installed on the lower side of another baffle.

[0014] Furthermore, the picking device includes a frame fixedly connected to the conveyor frame of the conveying device, a limiting rod fixedly connected to the frame, a moving block slidably connected to the limiting rod, a lead screw threadedly connected to the moving block, a second cylinder fixedly connected below the moving block, a negative pressure suction cup fixedly connected to the lower end of the second cylinder, and a motor. The lead screw is arranged parallel to the limiting rod, the lead screw is rotatably connected to the frame, the motor is fixedly mounted on the frame and its rotating shaft is fixedly connected to the lead screw, and the negative pressure suction cup is connected to a negative pressure vacuum pump through an air pipe.

[0015] A conveying plate is fixedly connected to one side of the conveying frame of the conveying device. The conveying plate gradually slopes downward from the end near the conveying frame to the other end. There are retaining edges on the upper sides of both sides of the conveying plate.

[0016] The travel design requirement for the moving block is that it can reach the top of the conveying device and the top of the material conveying plate.

[0017] Furthermore, reinforcing telescopic rods are provided on both sides of the cylinder, and the reinforcing telescopic rods are arranged parallel to the cylinder. The reinforcing telescopic rods include a sleeve fixedly connected to the housing and an insert rod slidably connected to the sleeve. The upper end of the insert rod is fixedly connected to the lifting plate.

[0018] Furthermore, a support plate is provided below the upper belt of the conveyor device, and the distance between the support plate and the upper belt is 0.5-1cm.

[0019] Furthermore, a rubber pad is fixedly connected to the lower side of the pressure block.

[0020] The advantages of this utility model compared with the prior art are as follows:

[0021] 1. The testing process is more automated: From the positioning and transportation of smart energy meters, automatic clamping and fixing, automatic wiring and testing, to the automatic sorting after testing, the entire process does not require manual intervention, which greatly improves testing efficiency and reduces labor intensity and safety risks.

[0022] 2. Reasonable structural design and good protection performance: By setting buffer spring one and buffer spring two, buffering is provided during the clamping and wiring process, which effectively prevents damage to the smart energy meter terminals and test connection terminals caused by rigid pressure, thereby improving the reliability of testing and the service life of the equipment.

[0023] 3. Automatic sorting function: Through the cooperation of the picking device and the conveyor plate, unqualified smart energy meters can be automatically removed from the conveyor belt for centralized collection, realizing the automatic separation of qualified and unqualified products, further improving processing efficiency and reducing labor intensity.

[0024] 4. Reliable clamping and fixing: The support plate prevents the conveyor belt from being excessively deformed under pressure, ensuring sufficient clamping force; the rubber pad on the underside of the pressure block increases friction to prevent the smart energy meter from shifting, and further plays a buffering and protective role, ensuring the accurate position and good contact of the smart energy meter during testing. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a smart energy meter withstand voltage testing device according to this utility model. Figure 1 .

[0026] Figure 2 This is a schematic diagram of the structure of a smart energy meter withstand voltage testing device according to this utility model. Figure 2 .

[0027] Figure 3This is a schematic diagram of the structure of a smart energy meter withstand voltage testing device according to this utility model. Figure 3 .

[0028] Figure 4 This is a schematic diagram of the structure of a smart energy meter withstand voltage testing device according to this utility model. Figure 4 .

[0029] Figure 5 yes Figure 3 A magnified structural diagram at point A.

[0030] Figure 6 This is a schematic diagram of the positioning and placement mechanism of a smart energy meter withstand voltage testing device according to this utility model.

[0031] As shown in the figure:

[0032] 1. Conveying device; 101. Support plate; 2. Positioning and placement mechanism; 201. Rear stop bar; 202. Side stop bar; 3. Pressing and fixing device; 301. Box body; 302. Cylinder 1; 303. Lifting plate; 304. Horizontal bar; 305. Vertical bar; 306. Slide bar 1; 307. Buffer spring 1; 308. Connecting block; 309. Slide bar 2; 310. Buffer spring 2; 311. Pressure block; 312. Baffle; 313. Reinforced telescopic rod; 314. Rubber pad; 4. Picking device; 401. Frame; 402. Limiting rod; 403. Moving block; 404. Lead screw; 405. Cylinder 2; 406. Negative pressure suction cup; 407. Motor; 5. Connecting terminal 1; 6. Connecting terminal 2; 7. Conveying plate; 701. Side guard. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Implementation examples, in conjunction with the appendix Figure 1-6 A smart energy meter withstand voltage testing device includes a transmission device 1, a positioning and placement mechanism 2, a clamping and fixing device 3, a testing module, and a picking device 4.

[0035] The conveying device 1 is a belt conveyor;

[0036] The positioning and placement mechanism 2 is located above the input end of the conveying device 1;

[0037] The clamping and fixing device 3 includes a box 301 fixedly connected to the conveyor frame of the conveying device 1, a cylinder 302 located in the middle of the upper side of the box 301, a lifting plate 303 fixedly connected to the rod of the cylinder 302, a horizontal bar 304 fixedly connected to the lifting plate 303, a vertical bar 305 fixedly connected to one end of the horizontal bar 304, two sliding rods 306 slidably connected to the vertical bar 305 in the vertical direction, a buffer spring 307 sleeved on the sliding rod 306, a connecting block 308 fixedly connected to one side of the lower part of the vertical bar 305, two sliding rods 309 slidably connected to the connecting block 308 in the vertical direction, a buffer spring 310 sleeved on the sliding rod 309, and a pressure block 311 located at the lower end of the sliding rod 309 and fixedly connected to both sliding rods 309. A baffle 312 is fixedly connected to the lower end of the sliding rod 306.

[0038] The test module includes a test circuit and a connection terminal disposed on the lower side of the baffle 312 for electrical connection with the smart energy meter under test.

[0039] The picking device 4 is located above the output end of the conveying device 1, and the vertical rod 305 is located in the upper middle part of the conveying device 1.

[0040] In this specific embodiment, the positioning and placement mechanism 2 includes a rear stop bar 201 fixedly connected to the conveyor frame of the conveying device 1 and two side stop bars 202. The two side stop bars 202 are fixedly connected to the side of the rear stop bar 201 near the pressing and fixing device 3 and are symmetrically arranged along the middle of the rear stop bar 201. The two side stop bars 202 are inclined outward relative to each other, and the shortest distance between the two side stop bars 202 is adapted to the width of the smart energy meter.

[0041] In this specific embodiment, the cylinder body of the first cylinder 302 is fixedly connected to the housing 301, one end of the first buffer spring 307 is fixedly connected to the vertical rod 305, the other end of the first buffer spring 307 is fixedly connected to the baffle 312, one end of the second buffer spring 310 is fixedly connected to the connecting block 308, and the other end of the second buffer spring 310 is fixedly connected to the pressure block 311.

[0042] In this specific embodiment, the test circuit is located inside the housing 301, and the connection terminals include a first connection terminal 5 fixedly installed on the lower side of one baffle 312 and a second connection terminal 6 fixedly installed on the lower side of another baffle 312. The first connection terminal 5 and the second connection terminal 6 are electrically connected to the AC withstand voltage test equipment through the test circuit.

[0043] In this specific embodiment, the picking device 4 includes a frame 401 fixedly connected to the conveyor frame of the conveying device 1, a limiting rod 402 fixedly connected to the frame 401, a moving block 403 slidably connected to the limiting rod 402, a lead screw 404 threadedly connected to the moving block 403, a second cylinder 405 fixedly connected below the moving block 403, a negative pressure suction cup 406 fixedly connected to the lower end of the second cylinder 405, and a motor 407. The lead screw 404 is arranged parallel to the limiting rod 402 and is rotatably connected to the frame 401. The motor 407 is fixedly installed on the frame 401 and its rotating shaft is fixedly connected to the lead screw 404. The negative pressure suction cup 406 is connected to a negative pressure vacuum pump through an air pipe.

[0044] A conveying plate 7 is fixedly connected to one side of the conveying frame of the conveying device 1. The conveying plate 7 gradually slopes downward from the end near the conveying frame to the other end. The upper sides of the conveying plate 7 are provided with retaining edges 701.

[0045] The travel design requirement of the moving block 403 is that it can reach the top of the conveying device 1 and the top of the conveying plate 7.

[0046] In use, the operator places the smart energy meter in the positioning mechanism 2, ensuring that the end of the smart energy meter furthest from the wiring terminal is in contact with the rear stop 201. The conveyor device 1 is then activated, and the conveyor belt moves the smart energy meter forward to below the clamping and fixing device 3. When the conveyor belt stops, cylinder 302 retracts, causing the lifting plate 303 to descend. This lowers the components connected to the lifting plate 303, causing the connecting terminal 5, connecting terminal 6, and pressure block 311 to all descend. The pressure block 311 then presses against the upper side of the smart energy meter, working in conjunction with the conveyor belt to clamp the smart energy meter. Terminal 5 and terminal 6 are connected to the wiring terminals on the smart meter to complete the wiring process. The AC withstand voltage tester then performs the withstand voltage test. Simultaneously, the operator places the next smart meter in the positioning mechanism 2. After the test, the clamping and fixing device 3 resets. If the smart meter passes the test, the conveyor belt moves the smart meter forward to below the picking device 4. At this time, the next smart meter also moves to below the clamping and fixing device 3. The above pressure testing process is repeated. When the pressure test is completed again, the conveyor belt moves the smart meter... Moving forward, the smart energy meter located below the picking device 4 moves to the end of the conveyor belt and falls onto the pre-placed assembly line for the next process. If the smart energy meter fails the test, the conveyor belt moves the smart energy meter forward to below the picking device 4. At this time, the next smart energy meter also moves to below the pressing and fixing device 3, and the above pressure testing action is repeated. At this time, the picking device 4 works, the cylinder 405 extends, and drives the negative pressure suction cup 406 to descend, so that the negative pressure suction cup 406 is in contact with the upper side of the unqualified smart energy meter. The negative pressure vacuum pump works to produce pressure inside the negative pressure suction cup 406. A negative pressure is generated, which attracts the defective smart energy meter. Cylinder 2 405 retracts to pick up the defective smart energy meter. The motor 407 drives the lead screw 404 to rotate, which moves the moving block 403 and the cylinder 2 405, thus moving the defective smart energy meter above the conveyor plate 7. Cylinder 2 405 extends to lower the defective smart energy meter close to the conveyor plate 7. The negative pressure vacuum pump stops working, so there is no negative pressure in the negative pressure suction cup 406. After the defective smart energy meter falls onto the conveyor plate 7, it slides into the collection box set in advance below the conveyor plate 7, and no more manual handling is required.

[0047] The buffer spring 307 can buffer the connection when the connection terminal 5 and the connection terminal 6 come into contact with the wiring terminals of the smart energy meter, ensuring reliable wiring while preventing the wiring terminals of the smart energy meter and the connection terminals 5 and 6 from being damaged by rigidity and excessive pressure. The buffer spring 310 can prevent the pressure block 311 from applying excessive rigidity to the smart energy meter and prevent the smart energy meter from being crushed during clamping.

[0048] As a further explanation of the control part of this utility model, the device also includes a programmable logic controller (PLC) and a photoelectric sensor for detecting the position of the smart energy meter. The first photoelectric sensor is located at the outlet of the positioning and placement mechanism 2 to detect whether the smart energy meter has been correctly placed and is ready for transport. The second photoelectric sensor is located directly below the clamping and fixing device 3 to detect whether the smart energy meter has moved to the testing station. The PLC is electrically connected to the drive motor, cylinder 302, cylinder 405, motor 407, negative pressure vacuum pump, AC withstand voltage testing equipment, and the aforementioned photoelectric sensors of the conveying device 1, controlling the entire testing process. This part is not protected by this patent application, and it is easily implemented by those skilled in the art, belonging to the prior art, and will not be described in detail here.

[0049] In this specific embodiment, reinforcing telescopic rods 313 are provided on both sides of the cylinder 302. The reinforcing telescopic rods 313 are arranged parallel to the cylinder 302. Each reinforcing telescopic rod 313 includes a sleeve fixedly connected to the housing 301 and an insert rod slidably connected to the sleeve. The upper end of the insert rod is fixedly connected to the lifting plate 303. By providing the reinforcing telescopic rods 313, the non-axial force on the cylinder 302 is shared, greatly extending the service life of the cylinder 302.

[0050] In this specific embodiment, a support plate 101 is provided below the upper belt of the conveyor device 1, and the distance between the support plate 101 and the upper belt is 0.5-1cm. By setting the support plate 101, when the pressure block 311 abuts against the upper side of the smart energy meter and cooperates with the conveyor belt to clamp the smart energy meter, the conveyor belt abuts against the support plate 101 under the action of downward pressure. This not only avoids the conveyor belt being subjected to excessive pressure and causing severe deformation, but also ensures the clamping force of the smart energy meter, achieving effective clamping and fixing.

[0051] In this specific embodiment, a rubber pad 314 is fixedly connected to the lower side of the pressure block 311. By setting the rubber pad 314, it can further play a buffering role to prevent the smart energy meter from being crushed, and also increase the static friction coefficient between the pressure block 311 and the smart energy meter, preventing the smart energy meter from moving off-center during the clamping process, and ensuring that the subsequent connection terminals 5 and 6 can be correctly connected to the wiring terminals of the smart energy meter.

[0052] In the description of the embodiments of this utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0053] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0054] In the description of the embodiments of this utility model, "a plurality of" means at least two.

[0055] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0056] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A withstand voltage testing device for smart energy meters, characterized in that: Includes a conveying device (1), a positioning and placement mechanism (2), a clamping and fixing device (3), a testing module, and a picking device (4). The conveying device (1) is a belt conveyor; The positioning and placement mechanism (2) is located above the input end of the conveying device (1); The clamping and fixing device (3) includes a box (301) fixedly connected to the conveyor frame of the conveying device (1), a cylinder (302) located in the middle of the upper side of the box (301), a lifting plate (303) fixedly connected to the rod of the cylinder (302), a horizontal bar (304) fixedly connected to the lifting plate (303), a vertical bar (305) fixedly connected to one end of the horizontal bar (304), two sliding rods (306) slidably connected to the vertical bar (305) in the vertical direction, and a sleeve on the The slide rod (306) has a buffer spring (307), a connecting block (308) fixedly connected to the lower side of the vertical rod (305), two slide rods (309) slidably connected to the connecting block (308) in the vertical direction, a buffer spring (310) sleeved on the slide rod (309), and a pressure block (311) located at the lower end of the slide rod (309) and fixedly connected to the two slide rods (309) at the same time. The lower end of the slide rod (306) is fixedly connected to a baffle (312). The test module includes a test circuit and a connection terminal disposed on the lower side of the baffle (312) for electrical connection with the smart energy meter under test; The picking device (4) is located above the output end of the conveying device (1), and the vertical rod (305) is located in the middle of the upper part of the conveying device (1).

2. The withstand voltage testing device for a smart energy meter according to claim 1, characterized in that: The positioning and placement mechanism (2) includes a rear stop (201) and two side stops (202) fixedly connected to the conveyor frame of the conveying device (1). The two side stops (202) are fixedly connected to the side of the rear stop (201) near the pressing and fixing device (3) and are symmetrically arranged along the middle of the rear stop (201). The two side stops (202) are inclined outward relative to each other, and the shortest distance between the two side stops (202) is adapted to the width of the smart energy meter.

3. The withstand voltage testing device for a smart energy meter according to claim 1, characterized in that: The cylinder body of cylinder one (302) is fixedly connected to the housing (301), one end of buffer spring one (307) is fixedly connected to the vertical rod (305), the other end of buffer spring one (307) is fixedly connected to the baffle (312), one end of buffer spring two (310) is fixedly connected to the connecting block (308), and the other end of buffer spring two (310) is fixedly connected to the pressure block (311).

4. The withstand voltage testing device for a smart energy meter according to claim 1, characterized in that: The test circuit is located inside the housing (301), and the connection terminals include a first connection terminal (5) fixedly installed on the lower side of a baffle (312) and a second connection terminal (6) fixedly installed on the lower side of another baffle (312).

5. The withstand voltage testing device for a smart energy meter according to claim 1, characterized in that: The picking device (4) includes a frame (401) fixedly connected to the conveyor frame of the conveying device (1), a limiting rod (402) fixedly connected to the frame (401), a moving block (403) slidably connected to the limiting rod (402), a lead screw (404) threadedly connected to the moving block (403), a second cylinder (405) fixedly connected below the moving block (403), a negative pressure suction cup (406) fixedly connected to the lower end of the second cylinder (405), and a motor (407). The lead screw (404) is arranged parallel to the limiting rod (402), the lead screw (404) is rotatably connected to the frame (401), the motor (407) is fixedly installed on the frame (401) and its rotating shaft is fixedly connected to the lead screw (404), and the negative pressure suction cup (406) is connected to a negative pressure vacuum pump through an air pipe. The conveying device (1) has a conveying plate (7) fixedly connected to one side of the conveying frame. The conveying plate (7) gradually slopes downward from the end near the conveying frame to the other end. The upper sides of the conveying plate (7) are provided with guards (701). The travel design requirement of the moving block (403) is that it can reach the top of the conveying device (1) and the top of the conveying plate (7).

6. The withstand voltage testing device for a smart energy meter according to claim 1, characterized in that: The cylinder (302) is provided with reinforcing telescopic rods (313) on both sides. The reinforcing telescopic rods (313) are arranged parallel to the cylinder (302). The reinforcing telescopic rods (313) include a sleeve fixedly connected to the housing (301) and an insert rod slidably connected to the sleeve. The upper end of the insert rod is fixedly connected to the lifting plate (303).

7. The withstand voltage testing device for a smart energy meter according to claim 1, characterized in that: The upper belt of the conveyor device (1) is provided with a support plate (101) below it, and the distance between the support plate (101) and the upper belt is 0.5-1cm.

8. The withstand voltage testing device for a smart energy meter according to claim 1, characterized in that: A rubber pad (314) is fixedly connected to the lower side of the pressure block (311).

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