An electric power meter detection device

Abstract

The utility model provides a kind of electric power instrument detection device, including conveying mechanism, detection mechanism, positioning mechanism and limiting mechanism;Conveying mechanism includes the conveying belt for conveying electric power instrument along a conveying path;Detection station is equipped on conveying path;Detection mechanism is located in detection station;Positioning mechanism is used to position electric power instrument in detection station after electric power instrument reaches detection station;Limiting mechanism includes limiting piece and driving device, limiting piece is located in the downstream of detection station along conveying direction;Driving device is drivingly connected with limiting piece, for driving the movement of limiting piece in limiting position and avoiding position.The utility model is controlled by driving device by setting limiting piece, so that it can move to limiting position before detection and in detection process, and reliable mechanical limiting is formed to electric power instrument conveyed to detection station.This structure fundamentally eliminates the inertia slip problem of electric power instrument caused by the sudden stop of conveying mechanism.

Description

Technical Field

[0001] This utility model relates to the field of power instrument production and testing technology, and more specifically, to a power instrument testing device. Background Technology

[0002] The content in this section only provides background information related to this utility model and may not constitute prior art.

[0003] During the production process, the voltage withstand capability of power meters needs to be tested to ensure their stability and reliability in use.

[0004] To improve testing efficiency, patent document CN223065430U discloses an automated testing device for power meters. This device transports power meters via a conveyor mechanism and uses an infrared sensor to determine whether the power meter is in the testing position. When the power meter is in the testing position, it controls the clamping mechanism and the testing mechanism to fix and test the power meter, respectively. However, this device has a significant drawback: it relies on sensor signals to identify whether the power meter is in the testing position and to control the conveyor mechanism to stop abruptly. When the conveyor mechanism stops abruptly, the power meter may continue to slide forward due to its own inertia, causing it to fail to stop accurately in the testing position. This may cause the test contact rod on the tester to fail to align accurately with the contact end of the power meter, which may not only lead to testing failure but also damage the power meter or the tester due to positional misalignment. Summary of the Invention

[0005] In view of this, the purpose of this utility model is to provide a power meter testing device, so as to at least overcome the technical problem that existing power meter automated testing devices easily cause power meters to fail to accurately stop at the testing position.

[0006] The objective of this utility model is achieved through the following technical solution: This utility model provides a power meter testing device, comprising: A conveying mechanism includes a conveyor belt for conveying electrical instruments along a conveying path; a detection station is provided on the conveying path; The testing mechanism is located at the testing station and includes a test assembly positioned above the conveyor belt and capable of being raised and lowered; the test assembly has a test contact rod for contacting the contact end of the power meter. A positioning mechanism is used to position the power meter at the testing station after the power meter arrives at the testing station; and, Limiting mechanisms include: A limiting component is located downstream of the detection station along the conveying direction; A driving device is connected to the limiting member in a transmission manner, and is used to drive the limiting member to move between the limiting position and the avoidance position; In the limiting position, the limiting member stops the conveying path to prevent the power meter from passing through the detection station; in the avoidance position, the limiting member releases its obstruction of the conveying path to allow the power meter to pass through the detection station.

[0007] Optionally, the movement of the limiting member is a horizontal movement along a horizontal direction perpendicular to the conveying direction.

[0008] Optionally, the positioning mechanism includes a first positioning element and a second positioning element that are arranged opposite each other in a horizontal direction perpendicular to the conveying direction; The first positioning element is fixedly installed, and the second positioning element is configured to move closer to or further away from the first positioning element; The driving device is further configured to: after driving the limiting member to move from the avoidance position to the limiting position, drive the limiting member to move a second time in the same direction, and drive the second positioning member to move closer to the first positioning member through the second movement of the limiting member.

[0009] Optionally, the limiting member is provided with a driving part; when the limiting member is in the limiting position, the driving part is located on the side of the second positioning member away from the first positioning member; When the driving device drives the limiting member to move a second time, the driving part contacts the second positioning member and pushes the second positioning member closer to the first positioning member.

[0010] Optionally, the second positioning member is connected to an elastic member; the elastic member is configured to drive the second positioning member away from the first positioning member when the driving part disengages from the second positioning member.

[0011] Optionally, the elastic element includes: The telescopic rod has one end fixed and the other end connected to the side of the second positioning member opposite to the first positioning member. A spring is coaxially sleeved on the outside of the telescopic rod; one end of the spring is fixed, and the other end is connected to the second positioning member.

[0012] Optionally, the second positioning member is slidably connected to a slide rail; the slide rail extends along the movement path of the second positioning member and is fixedly installed.

[0013] Optionally, the limiting member is provided with a detection component; the detection component is configured to detect whether the power meter has reached the detection station.

[0014] Optionally, the limiting member includes a plurality of limiting rollers for blocking the conveying path; The plurality of limiting rollers are arranged sequentially along a horizontal direction perpendicular to the conveying direction; each of the limiting rollers can rotate about its own axis.

[0015] Optionally, each of the limiting rollers is fitted with a protective sleeve on its outer wall.

[0016] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects: The power meter testing device provided by this utility model, by setting a limiting component controlled by a drive device, allows the device to move to a limiting position before and during testing, thus reliably limiting the power meter being transported to the testing station. This structure fundamentally eliminates the problem of inertial slippage of the power meter caused by sudden stops of the conveying mechanism, ensuring that the power meter can stop accurately and reliably at the testing station every time, thereby providing a reliable guarantee for the successful completion of power meter testing. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of the power meter detection device provided in an embodiment of the present utility model; it shows the situation when the limiting member is in the avoidance position; Figure 2 A schematic diagram of the power meter detection device provided in an embodiment of the present invention in another state; it shows the situation when the limiting member is in the limiting position; Figure 3 A schematic diagram of the limiting mechanism provided in an embodiment of this utility model; Figure 4 A partial structural schematic diagram of the positioning mechanism provided in an embodiment of this utility model; Figure 5 for Figure 2 Enlarged view of the local structure at point A in the middle.

[0018] Icons: 10-Conveying mechanism, 11-Conveyor belt, 12-Side plate, 20-Detection mechanism, 21-Support frame, 22-Lifting driver, 23-Test component, 24-Test contact rod, 30-Positioning mechanism, 31-First positioning component, 32-Second positioning component, 33-Elastic component, 331-Telescopic rod, 332-Spring, 34-Slide rail, 40-Limiting mechanism, 41-Limiting component, 411-Drive unit, 412-Detection component, 413-Limiting roller, 42-Drive device, 43-Mounting bracket. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments. The same reference numerals in the accompanying drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of protection of this utility model may have fewer components, have other components not shown in the drawings, different components, components with different arrangements, or components with different connections, etc. Furthermore, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0021] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components.

[0022] Please refer to Figures 1 to 5 As shown, an embodiment of this utility model provides a power meter testing device for automating the testing of the voltage withstand capability of power meters.

[0023] According to embodiments of the present invention, such as Figure 1 As shown, the power meter testing device includes a conveying mechanism 10, a testing mechanism 20, a positioning mechanism 30, and a limiting mechanism 40.

[0024] like Figure 1 and Figure 2 As shown, the conveying mechanism 10 may be a belt conveyor and includes a conveyor belt 11 for conveying electrical instruments along a conveying path. A testing station is provided on the conveying path for testing the voltage withstand capability of the electrical instruments.

[0025] In a preferred embodiment of this utility model, the conveying mechanism 10 further includes two side plates 12, which are arranged opposite each other above the conveyor belt 11 in a horizontal direction perpendicular to the conveying direction. This restricts the degree of freedom of the power instrument conveyed by the conveyor belt 11 in the horizontal direction perpendicular to the conveying direction, ensuring, as far as possible, that the power instrument moves in a straight line along the conveying path. The conveying direction described in this embodiment can be referred to... Figure 1 and Figure 2 The direction indicated by the dashed arrow shown The testing mechanism 20 is located at the testing station and includes a support frame 21, a lifting drive 22, and a testing component 23. The support frame 21 is located beside the conveyor mechanism 10, and the lifting drive 22 is mounted on the support frame 21. The testing component 23 is located above the conveyor belt 11 and can be raised and lowered under the drive of the lifting drive 22. Specifically, the testing component 23 may be a voltage tester and has a test contact rod 24 for contacting the contact end of the power instrument at the testing station.

[0026] Preferably, the lifting drive 22 can be a conventional linear drive such as a cylinder or hydraulic cylinder.

[0027] The positioning mechanism 30 is also installed at the testing station, and can be installed on the two side plates 12. The positioning mechanism 30 is used to position the power instrument at the testing station after it arrives, preventing the power instrument from shifting during subsequent testing.

[0028] The limiting mechanism 40 includes a limiting member 41 and a driving device 42. The limiting member 41 is located downstream of the inspection station along the conveying direction. The driving device 42 is drively connected to the limiting member 41 and is used to drive the limiting member 41 to move as shown in the image. Figure 2 The limit position shown is the same as... Figure 1 The device moves between the indicated avoidance positions. When the limiter 41 is in the limit position, it blocks the conveying path to prevent the power instrument from passing through the detection station; when the limiter 41 is in the avoidance position, it releases the blockage on the conveying path to allow the power instrument to pass through the detection station.

[0029] According to an embodiment of this utility model, the working process of the power meter testing device is as follows: Assuming that in the initial state, the limiting member 41 is in the position as follows Figure 1 When power meter testing is required, the limit member 41 is first driven by the drive device 42 to move from the avoidance position to the position shown. Figure 2 The indicated limit position stops it in the conveying path.

[0030] Subsequently, the power meter to be tested is placed on the conveyor belt 11 upstream of the testing station, and the conveyor belt 11 transports the power meter toward the testing station. When the power meter arrives at the testing station, due to the presence of the limiting component 41, it cannot continue to move along the conveying path and is instead restricted at the testing station. At this time, the control conveying mechanism 10 stops.

[0031] Next, the power meter is reliably positioned at the testing station by the positioning mechanism 30. Then, the testing component 23 is lowered so that its testing contact rod 24 contacts the contact end of the power meter, allowing for voltage withstand capability testing.

[0032] After the test is completed, the test component 23 rises and resets, the positioning mechanism 30 releases the positioning of the power meter, and the drive device 42 drives the limit member 41 to move from the limit position to the avoidance position, so as to facilitate the restart of the conveyor mechanism 10, so as to transport the tested power meter to the next station through the conveyor belt 11.

[0033] The power meter testing device provided in this embodiment of the invention, by setting a limiting member 41 controlled by the driving device 42, allows the device to move to a limiting position before and during testing, thus reliably limiting the power meter being transported to the testing station. This structure fundamentally eliminates the problem of inertial slippage of the power meter caused by the sudden stop of the conveying mechanism 10, ensuring that the power meter can stop accurately and reliably at the testing station each time, thereby providing a reliable guarantee for the successful completion of the power meter testing.

[0034] In some possible embodiments, the movement of the limiting member 41 in the limiting position and the avoidance position can take various forms. For example, the movement of the limiting member 41 can be a lifting movement driven by the driving device 42, so that the limiting member 41 moves between the limiting position and the avoidance position by lifting and lowering; or, the movement of the limiting member 41 can be a horizontal movement in a horizontal direction perpendicular to the conveying direction. Preferably, the second method described above can be adopted, that is, the movement of the limiting member 41 is a horizontal movement in a horizontal direction perpendicular to the conveying direction, so as to place the driving device 42 on the side of the conveying path, thereby optimizing the structural design of the entire device and making the structure of the entire device more compact.

[0035] Specifically, refer to 2 and Figure 3 As shown, the drive unit 42 is fixedly mounted on a mounting bracket 43. This mounting bracket 43 can be fixedly mounted on one of the side plates 12. Preferably, the drive unit 42 can be a conventional linear actuator such as a cylinder or hydraulic cylinder.

[0036] In some possible embodiments, refer to Figure 1 or Figure 2 As shown, the positioning mechanism 30 specifically includes a first positioning member 31 and a second positioning member 32 arranged opposite each other in a horizontal direction perpendicular to the conveying direction. The first positioning member 31 and the second positioning member 32 can move relative to each other in a horizontal direction perpendicular to the conveying direction. When the power instrument is in the testing station, the relative movement of the first positioning member 31 and the second positioning member 32 can clamp and fix the power instrument in the testing station.

[0037] In a preferred embodiment, the first positioning member 31 is fixedly disposed on one of the side plates 12; the second positioning member 32 is movably disposed on the other side plate 12, so as to allow the second positioning member 32 to move closer to or further away from the first positioning member 31.

[0038] In this preferred embodiment, the drive device 42 is further configured to: after the drive limiting member 41 moves from the avoidance position to the limiting position, the drive limiting member 41 moves a second time in the same direction (i.e. towards the first positioning member 31), and the second positioning member 32 is driven to approach the first positioning member 31 by the second movement of the limiting member 41.

[0039] Specifically, in conjunction with the foregoing, after the power meter arrives at the testing station and is restricted to the testing station by the limiting member 41, the driving device 42 can further drive the limiting member 41 to move a second time in the same direction. During this process, the limiting member 41 not only continues to block the conveying path, but also drives the second positioning member 32 to approach the first positioning member 31, so as to clamp and fix the power meter through the second positioning member 32 and the first positioning member 31.

[0040] This design enables the simultaneous movement of the limiting member 41 and the second positioning member 32 by a single power source. Compared to configuring separate power sources for the limiting member 41 and the second positioning member 32, this design simplifies the structure and controls costs.

[0041] In order to enable the second positioning member 32 to move when the limiting member 41 moves a second time, refer to Figure 3 As shown, the limiting member 41 is provided with a horizontally extending driving part 411. Wherein, when the limiting member 41 is in the position as shown... Figure 1 The avoidance position shown and as Figure 2 When the limit position is shown, the drive unit 411 is located on the side of the second positioning member 32 away from the first positioning member 31.

[0042] Based on the above structure, when the limiting member 41 moves from the avoidance position to the limiting position, refer to Figure 5 As shown, the drive unit 411 moves to a state where it maintains a small gap or slight contact with the second positioning member 32. Based on this, when the drive device 42 drives the limiting member 41 to move a second time, the drive unit 411 can contact the second positioning member 32 and push the second positioning member 32 closer to the first positioning member 31, thereby achieving the clamping and fixing of the power instrument.

[0043] Reference Figure 4 As shown, the second positioning member 32 is connected to the elastic member 33. The elastic member 33 is configured to drive the second positioning member 32 away from the first positioning member 31 when the driving part 411 disengages from the second positioning member 32.

[0044] Specifically, one end of the elastic member 33 is fixed, and the other end is connected to the side of the second positioning member 32 opposite to the first positioning member 31. Based on this design, when the drive unit 411 pushes the second positioning member 32 closer to the first positioning member 31 to clamp and fix the power meter, the elastic member 33 will undergo elastic deformation and accumulate a restoring force. Subsequently, when the drive device 42 drives the limiting member 41 to move to the avoidance position, causing the drive unit 411 to disengage from the second positioning member 32, the restoring force accumulated by the elastic member 33 is released, and the second positioning member 32 is automatically reset, thereby releasing the clamping and fixing of the power meter, so that the conveying mechanism 10 can transport the power meter to the next station.

[0045] Specifically, the elastic element 33 includes a telescopic rod 331 and a spring 332. One end of the telescopic rod 331 is fixed, and the other end is connected to the side of the second positioning element 32 opposite to the first positioning element 31. The spring 332 is coaxially sleeved on the outside of the telescopic rod 331. One end of the spring 332 is fixed, and the other end is connected to the second positioning element 32.

[0046] The elastic element 33 with this structure can provide guidance and limit for the second positioning element 32 while realizing the automatic reset function of the second positioning element 32, thereby improving the stability of the second positioning element 32 when it is close to or far from the first positioning element 31.

[0047] Reference Figure 4 As shown, the second positioning member 32 is slidably connected to a slide rail 34. The slide rail 34 extends along the movement path of the second positioning member 32 and can be fixedly mounted on the corresponding side plate 12. The slide rail 34 helps to further improve the stability of the second positioning member 32 when it is close to or far from the first positioning member 31.

[0048] In some possible embodiments, refer to Figure 3 As shown, the limiting member 41 is provided with a detection component 412. The detection component 412 is configured to detect whether the power meter has reached the detection station.

[0049] By setting up the detection component 412, it is beneficial to automatically stop the conveyor mechanism 10 when the power meter reaches the detection station. Preferably, the detection component 412 can be a pressure sensor, which can contact the power meter on the conveyor belt 11 when it reaches the detection station. The pressure sensor can send a detection signal to the controller of the conveyor mechanism 10, thereby stopping the conveyor mechanism 10.

[0050] In some possible embodiments, refer to Figure 3As shown, the limiting member 41 also includes multiple limiting rollers 413 for stopping the conveying path. That is, when the limiting member 41 is in the limiting position, the multiple limiting rollers 413 form a barrier to stop the conveying path, and when the power instrument arrives at the testing station, the multiple limiting rollers 413 will come into contact with the power instrument.

[0051] Furthermore, multiple limiting rollers 413 are arranged sequentially along a horizontal direction perpendicular to the conveying direction. Each limiting roller 413 can rotate around its own axis.

[0052] By setting the limiting roller 413, the frictional force when the power instrument comes into contact with the limiting member 41 can be reduced, thereby protecting the power instrument.

[0053] Furthermore, each limiting roller 413 is fitted with a flexible protective sleeve (not shown in the figure) on its outer wall to further protect the electrical instruments. Preferably, the protective sleeve can be a rubber sleeve.

[0054] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A power meter testing device, characterized in that, include: A conveying mechanism includes a conveyor belt for conveying electrical instruments along a conveying path; a detection station is provided on the conveying path; The testing facility is located at the testing station and includes a testing component that is positioned above the conveyor belt and can be raised and lowered. The test assembly has a test contact rod for contacting the contact end of the power meter; A positioning mechanism is used to position the power meter at the testing station after the power meter arrives at the testing station; as well as, Limiting mechanisms include: A limiting component is located downstream of the detection station along the conveying direction; A driving device is connected to the limiting member in a transmission manner, and is used to drive the limiting member to move between the limiting position and the avoidance position; In the limiting position, the limiting member stops the conveying path to prevent the power meter from passing through the detection station; in the avoidance position, the limiting member releases its obstruction of the conveying path to allow the power meter to pass through the detection station.

2. The power meter testing device according to claim 1, characterized in that, The movement of the limiting member is a horizontal movement along a horizontal direction perpendicular to the conveying direction.

3. The power meter testing device according to claim 2, characterized in that, The positioning mechanism includes a first positioning element and a second positioning element that are arranged opposite each other in a horizontal direction perpendicular to the conveying direction; The first positioning element is fixedly installed, and the second positioning element is configured to move closer to or further away from the first positioning element; The driving device is further configured to: after driving the limiting member to move from the avoidance position to the limiting position, drive the limiting member to move a second time in the same direction, and drive the second positioning member to move closer to the first positioning member through the second movement of the limiting member.

4. The power meter testing device according to claim 3, characterized in that, The limiting member is provided with a driving part; when the limiting member is in the limiting position, the driving part is located on the side of the second positioning member away from the first positioning member; When the driving device drives the limiting member to move a second time, the driving part contacts the second positioning member and pushes the second positioning member closer to the first positioning member.

5. The power meter testing device according to claim 4, characterized in that, The second positioning member is connected to an elastic member; the elastic member is configured to drive the second positioning member away from the first positioning member when the driving part disengages from the second positioning member.

6. The power meter testing device according to claim 5, characterized in that, The elastic element includes: The telescopic rod has one end fixed and the other end connected to the side of the second positioning member opposite to the first positioning member. A spring is coaxially sleeved on the outside of the telescopic rod; one end of the spring is fixed, and the other end is connected to the second positioning member.

7. The power meter testing device according to claim 3, characterized in that, The second positioning member is slidably connected to a slide rail; the slide rail extends along the movement path of the second positioning member and is fixedly installed.

8. The power meter testing device according to claim 1, characterized in that, The limiting member is equipped with a detection component; the detection component is configured to detect whether the power meter has reached the detection station.

9. The power meter testing device according to claim 1, characterized in that, The limiting component includes multiple limiting rollers for blocking the conveying path; The plurality of limiting rollers are arranged sequentially along a horizontal direction perpendicular to the conveying direction; each of the limiting rollers can rotate about its own axis.

10. The power meter testing device according to claim 9, characterized in that, Each of the aforementioned limiting rollers has a protective sleeve fitted on its outer wall.

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