A rail-mounted meter calibration fixture
By designing a guide rail type electricity meter calibration fixture that includes a placement plate, mounting bracket, clamping plate, feeding mechanism, and moving mechanism, and utilizing a servo motor and lead screw to achieve continuous feeding and clamping of the guide rail type electricity meter, the problem of low efficiency in the existing technology is solved, and the calibration efficiency of the guide rail type electricity meter is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- OSTER (CHONGQING) INSTRUMENT CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-07-31
AI Technical Summary
The existing rail-mounted meter calibration fixture is inefficient during loading and cannot achieve continuous operation.
A guide rail type electric meter calibration fixture was designed, which includes a placement plate, a mounting frame, a clamping plate, a feeding mechanism, and a moving mechanism. The fixture uses a servo motor to drive the mounting shaft and lead screw to achieve continuous feeding and clamping of the guide rail type electric meter, and combines it with a conveyor belt for unloading, thereby improving work efficiency.
It enables continuous feeding and clamping of rail-mounted meters, improving work efficiency and facilitating the calibration operation of rail-mounted meters.
Smart Images

Figure CN224581691U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electricity meter calibration technology, and in particular relates to a guide rail type electricity meter calibration fixture. Background Technology
[0002] The DIN rail-mounted electricity meter is a miniature intelligent energy metering device installed on a standard DIN 35mm rail, specifically designed for low-voltage power distribution terminals. Its compact structure allows for integration with miniature circuit breakers within the terminal distribution box, suitable for 380V / 220V three-phase four-wire or single-phase power supply systems. Through its modular design, this meter achieves high-precision energy metering, data storage, and communication functions, making it an important tool in the field of modern electricity metering.
[0003] After the production of rail-mounted electricity meters, in order to ensure the qualification of the meters, it is often necessary to connect and test the interfaces on the meters with the test plugs on the corresponding testing equipment. Therefore, a corresponding rail-mounted electricity meter calibration fixture is required. According to the patent document CN222506546U, a rail-mounted electricity meter calibration fixture is disclosed. However, it cannot continuously feed the rail-mounted electricity meters, resulting in low work efficiency. Utility Model Content
[0004] This utility model provides a guide rail type electricity meter calibration fixture, which aims to solve the problem of low working efficiency of the guide rail type electricity meter calibration fixture mentioned in the background art.
[0005] To solve the above problems, this utility model is implemented as follows: a guide rail type electricity meter calibration fixture, comprising: a placement plate, on which a placement frame for placing the guide rail type electricity meter is fixedly installed; a mounting frame assembled on one side of the placement plate, on which a first telescopic rod is symmetrically fixedly installed, and on which a clamping plate for clamping the guide rail type electricity meter is fixedly installed; and a feeding mechanism assembled on the placement plate, the feeding mechanism being used to rotate the guide rail type electricity meter placed on the placement plate to be fed below the clamping plate.
[0006] Preferably, the feeding mechanism includes: a base disposed below the placement plate, on which a first servo motor is fixedly mounted; a mounting shaft rotatably mounted on the base, wherein the output shaft of the first servo motor is connected to the bottom end of the mounting shaft via a coupling, and the top end of the mounting shaft is fixedly connected to the bottom of the placement plate.
[0007] Preferably, a support plate is fixedly installed at the bottom of the placement plate, the top of the support plate is in contact with the bottom of the placement plate, the discharge port on the support plate is adapted to the placement frame, and the discharge port is used to discharge the calibrated rail-mounted meter.
[0008] Preferably, a moving mechanism is provided on one side of the placement plate. The moving mechanism is used to move the guide rail type meter held by the clamping plate and connect it to the calibration equipment. The moving mechanism includes: a support frame fixedly installed on one side of the placement plate, a second servo motor fixedly installed on one side of the support frame; a lead screw rotatably installed on the support frame, the output shaft of the second servo motor being connected to one end of the lead screw through a coupling; and a mounting block threaded onto the lead screw, a second telescopic rod fixedly installed on the mounting block, the output shaft of the second telescopic rod being fixedly connected to the top of the mounting frame.
[0009] Preferably, a guide rod is fixedly mounted on the mounting bracket, and a guide block is fixedly mounted on the clamping plate, with the guide block and the guide rod being slidably connected.
[0010] Preferably, a plurality of sliders are fixedly installed on the bottom of the placement plate, and the ball bearings nested at the bottom of the sliders are in contact with the top of the base.
[0011] Preferably, a conveyor belt body is provided on one side of the base, the conveyor belt body is located below the discharge port, and the conveyor belt body is used to transport the calibrated rail-mounted meter.
[0012] Preferably, the bottom of the placement rack is open, the top of the support plate is in contact with the bottom of the placement rack, and the support plate is used to cover the opening at the bottom of the placement rack.
[0013] Compared with related technologies, the guide rail type meter calibration fixture provided by this utility model has the following beneficial effects: Compared with existing technologies, the rail-mounted electricity meter calibration fixture provided in this solution can clamp the rail-mounted electricity meter to be calibrated, thereby facilitating the calibration work. It can also continuously feed the rail-mounted electricity meter, effectively improving work efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of a guide rail type electric meter calibration fixture provided by this utility model; Figure 2 This is a schematic diagram of the front sectional view of the present invention; Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure; Figure 4 for Figure 2 An enlarged structural diagram of part B shown in the figure; Figure 5 This is a side sectional view of the mounting frame, the first telescopic rod, and the clamping plate in this utility model. Figure 6 This is a top view of the support plate and the discharge port in this utility model.
[0015] Reference numerals in the attached drawings: 1. Placement plate; 2. Placement frame; 3. Mounting frame; 4. First telescopic rod; 5. Clamping plate; 6. Base; 7. First servo motor; 8. Mounting shaft; 9. Support plate; 10. Discharge port; 11. Support frame; 12. Second servo motor; 13. Lead screw; 14. Mounting block; 15. Second telescopic rod; 16. Guide rod; 17. Guide block; 18. Slider; 19. Conveyor belt body. Detailed Implementation
[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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 the present invention.
[0017] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0018] This utility model embodiment provides a guide rail type electricity meter calibration fixture, such as Figure 1-6 As shown, the guide rail type electricity meter calibration fixture includes: a placement plate 1, on which a placement rack 2 for placing the guide rail type electricity meter is fixedly installed; a mounting rack 3 assembled on one side of the placement plate 1, on which a first telescopic rod 4 is symmetrically fixedly installed, and on the first telescopic rod 4 a clamping plate 5 for clamping the guide rail type electricity meter is fixedly installed; and a feeding mechanism assembled on the placement plate 1, which is used to rotate the guide rail type electricity meter placed on the placement plate 1 to be fed under the clamping plate 5.
[0019] In this embodiment, when processing the rail-mounted electricity meter, the operator places the meter in the corresponding rack 2 from one position. The OMRON E5CC-QX2ASM-800 controller on the device activates the feeding mechanism. This mechanism continuously rotates the meter on the rack 2 to below the clamping plates 5, lowering the two clamping plates 5 to the appropriate height. Then, the controller activates two first telescopic rods 4, which move the two clamping plates 5 relative to each other, thus clamping the meter in the rack 2. The interface on the clamped meter is then connected to the corresponding testing equipment for testing. After testing, the tested meter is returned to the rack 2, and the controller activates the feeding mechanism again to move the clamping plates... 1. Continue to rotate, thereby moving the other rail-mounted meters in the placement rack 2 to below the clamping plate 5 for further testing. The tested rail-mounted meters are moved to their corresponding positions for unloading. During this loading process, the staff continuously loads materials into the empty placement rack 2, thus enabling continuous loading of rail-mounted meters and improving overall processing efficiency. The entire device can clamp the rail-mounted meters that need to be calibrated, facilitating the calibration of the meters and enabling continuous loading, effectively improving work efficiency.
[0020] In a further preferred embodiment of the present invention, the feeding mechanism includes: a base 6 disposed below the placement plate 1, a first servo motor 7 fixedly mounted on the base 6; a mounting shaft 8 rotatably mounted on the base 6, wherein the output shaft of the first servo motor 7 is connected to the bottom end of the mounting shaft 8 via a coupling, and the top end of the mounting shaft 8 is fixedly connected to the bottom of the placement plate 1.
[0021] In this embodiment, when using the feeding mechanism, the first servo motor 7 is started by the controller, and the output shaft drives the mounting shaft 8 to rotate on the base 6, which in turn drives the placement plate 1, which is fixedly connected to the top of the mounting shaft 8, to rotate. This enables the rotating feeding of the guide rail meter placed on the placement plate 1 to the bottom of the clamping plate 5, and the continuous feeding effectively improves the work efficiency.
[0022] In a further preferred embodiment of the present invention, a support plate 9 is fixedly installed at the bottom of the placement plate 1, the top of the support plate 9 is in contact with the bottom of the placement plate 1, and the discharge port 10 on the support plate 9 is adapted to the placement frame 2. The discharge port 10 is used to discharge the calibrated rail-mounted meter.
[0023] In this embodiment, as the placement plate 1 rotates, when the placement rack 2 containing the calibrated guide rail meter rotates to above the discharge port 10, the calibrated guide rail meter is discharged through the discharge port 10 because the bottom of the placement rack 2 is open, which facilitates the continuous feeding of the placement rack 2 by the staff.
[0024] In a further preferred embodiment of this utility model, a moving mechanism is provided on one side of the placement plate 1. The moving mechanism is used to drive the guide rail type meter held by the clamping plate 5 to move and connect with the calibration equipment. The moving mechanism includes: a support frame 11 fixedly installed on one side of the placement plate 1, and a second servo motor 12 fixedly installed on one side of the support frame 11; a lead screw 13 rotatably installed on the support frame 11, and the output shaft of the second servo motor 12 is connected to one end of the lead screw 13 through a coupling; and a mounting block 14 threadedly installed on the lead screw 13, and a second telescopic rod 15 fixedly installed on the mounting block 14, and the output shaft of the second telescopic rod 15 is fixedly connected to the top of the mounting frame 3.
[0025] In this embodiment, after the clamping plate 5 clamps the rail-mounted meter, the controller activates the second telescopic rod 15 to move the clamped rail-mounted meter upwards to a certain height. Then, the controller activates the second servo motor 12 to rotate the lead screw 13. At the same time, a limit rod is fixedly installed on the support frame 11. The limit rod and the mounting block 14 are slidably connected. The limit rod limits the mounting block 14. The limit rod is located on one side of the lead screw 13, thereby causing the mounting block 14, which is threaded onto the lead screw 13, to move along the lead screw 13. This causes the rail-mounted meter clamped by the clamping plate 5 to move, so that the interface on the rail-mounted meter and the test plug on the calibration device set on one side of the placement plate 1 are connected to perform calibration. After the calibration is completed, the controller reverses the above steps, so that the calibrated clamped rail-mounted meter can be placed in the placement rack 2. If the product is unqualified, personnel can directly remove the product.
[0026] In a further preferred embodiment of this utility model, a guide rod 16 is fixedly installed on the mounting bracket 3, and a guide block 17 is fixedly installed on the clamping plate 5. The guide block 17 and the guide rod 16 are slidably connected.
[0027] In this embodiment, when the first telescopic rod 4 drives the clamping plate 5 to clamp or release the rail-mounted meter, the clamping plate 5 slides along the guide rod 16 fixed on the mounting frame 3 via the guide block 17 fixed on it. The sliding connection between the guide block 17 and the guide rod 16 provides guidance for the movement of the clamping plate 5, ensuring that the clamping plate 5 moves smoothly in the predetermined direction and avoiding deviation, shaking, etc., thereby ensuring the stability of clamping and preventing the rail-mounted meter from being damaged or affected by the unstable movement of the clamping plate 5 during the clamping process.
[0028] In a further preferred embodiment of the present invention, a plurality of sliders 18 are fixedly installed on the bottom of the placement plate 1, and the ball bearings nested at the bottom of the sliders 18 are in contact with the top of the base 6.
[0029] In this embodiment, when the placement plate 1 is rotated by the first servo motor 7 to rotate the mounting shaft 8 for operations such as loading, the ball bearings at the bottom of the slider 18 will roll along the top of the base 6 to help the placement plate 1 achieve smooth rotation.
[0030] In a further preferred embodiment of the present invention, a conveyor belt body 19 is provided on one side of the base 6. The conveyor belt body 19 is located below the discharge port 10 and is used to transport the calibrated rail-mounted meter.
[0031] In this embodiment, after the guide rail meter completes the calibration operation, when the guide rail meter rotates to the discharge port 10, it will fall directly onto the conveyor belt body 19 located below it. Then the conveyor belt body 19 starts to run, transporting the calibrated guide rail meter to the designated position.
[0032] In a further preferred embodiment of the present invention, the bottom of the placement rack 2 is open, the top of the support plate 9 is in contact with the bottom of the placement rack 2, and the support plate 9 is used to cover the bottom opening of the placement rack 2.
[0033] In this embodiment, in actual use, the rail-mounted electricity meter is placed on the placement rack 2 for calibration and other operations. The support plate 9 blocks the bottom opening of the placement rack 2 to prevent the electricity meter from falling out of the opening. At the same time, after the calibration is completed, the electricity meter can be unloaded through the feeding port 10 on the support plate 9.
[0034] In summary, compared with related technologies, the entire device can clamp the rail-mounted electricity meter that needs to be calibrated, thus facilitating the calibration of the meter and enabling continuous feeding of the meter, effectively improving work efficiency.
[0035] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.
[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.
Claims
1. A guide rail type electric meter calibration tool, characterized by, include: A placement plate, on which a placement rack for placing a rail-mounted electricity meter is fixedly installed; A mounting bracket is assembled on one side of the placement plate. A first telescopic rod is symmetrically fixedly mounted on the mounting bracket. A clamping plate for clamping the rail-mounted meter is fixedly mounted on the first telescopic rod. The feeding mechanism is mounted on the placement plate and is used to rotate the rail-mounted meter placed on the placement plate to the underside of the clamping plate.
2. The rail type meter calibrating tool according to claim 1, wherein The feeding mechanism includes: A base is disposed below the placement plate, and a first servo motor is fixedly installed on the base. The mounting shaft is rotated and mounted on the base, and the output shaft of the first servo motor is connected to the bottom end of the mounting shaft via a coupling, and the top end of the mounting shaft is fixedly connected to the bottom of the placement plate.
3. The guide rail type ammeter calibrating tool according to claim 2, wherein A support plate is fixedly installed at the bottom of the placement plate. The top of the support plate is in contact with the bottom of the placement plate. The feeding port on the support plate is adapted to the placement frame. The feeding port is used to feed the calibrated rail-mounted meter.
4. The rail type meter check fixture of claim 1 wherein, A moving mechanism is provided on one side of the placement plate. The moving mechanism is used to move the rail-mounted electricity meter held by the clamping plate and connect it to the calibration device. The moving mechanism includes: A support frame is fixedly installed on one side of the placement plate, and a second servo motor is fixedly installed on one side of the support frame; Rotate the lead screw mounted on the support frame; the output shaft of the second servo motor is connected to one end of the lead screw via a coupling. A mounting block threaded onto the lead screw, on which a second telescopic rod is fixedly mounted, the output shaft of the second telescopic rod being fixedly connected to the top of the mounting bracket.
5. The rail type meter check fixture of claim 1 wherein, A guide rod is fixedly installed on the mounting bracket, and a guide block is fixedly installed on the clamping plate. The guide block and the guide rod are slidably connected.
6. The guide rail type ammeter calibrating tool according to claim 2, wherein Multiple sliders are fixedly installed on the bottom of the placement plate, and the ball bearings nested at the bottom of the sliders are in contact with the top of the base.
7. The guide rail type ammeter calibrating tool according to claim 3, wherein A conveyor belt body is provided on one side of the base, and the conveyor belt body is located below the discharge port. The conveyor belt body is used to transport the calibrated rail-mounted electricity meter.
8. The rail type meter check-out fixture of claim 3 wherein, The bottom of the placement rack is open, and the top of the support plate is in contact with the bottom of the placement rack. The support plate is used to cover the opening at the bottom of the placement rack.