Automatic electric energy meter push-pull force testing device

Abstract

The invention discloses an automatic electric energy meter push-pull force testing device, and relates to the technical field of push-pull force testing, the automatic electric energy meter push-pull force testing device comprises a testing machine body, the upper end of the testing machine body is fixedly connected with a moving track and a vertical plate, one side, close to the moving track, of the vertical plate is fixedly connected with a self-adaptive clamping ring, and the upper end face of the moving track is slidably connected with a moving frame; clamping plates are symmetrically and slidably connected to the movable frame, the sliding detection early warning mechanism comprises rollers which are symmetrically arranged, rotating shafts are fixedly connected to the centers of the rollers in a penetrating mode, and supporting plates are fixedly connected to the two sides of the outer surfaces of the rotating shafts; the supporting plates on the same side are fixedly connected to the side walls of the clamping plates and can synchronously drive the rollers to rotate in the sliding process of the wiring terminals, microscopic sliding which cannot be perceived by naked eyes originally is converted into visual signals of roller rotation, and workers are reminded that the wiring terminals are abnormal in the testing process.

Description

Technical Field

[0001] This invention relates to the field of push-pull force testing technology, specifically to an automated push-pull force testing device for electricity meters. Background Technology

[0002] The push-pull force testing device for automated energy meters is a professional equipment used to test the mechanical strength of the terminals of energy meters. It mainly performs terminal pressure tests, which is a mandatory test item in the evaluation of smart energy meters. According to relevant standards, a specified push / pull force must be applied to the terminals for a certain period of time to verify their reliability and safety under mechanical stress. During the tensile testing of terminal blocks, one end of the terminal block is usually clamped. However, due to the manual operation of the clamping device, when the tensile force is too large, the terminal block may slightly slip on the clamping device during the tensile test. This is not noticeable to the naked eye. The slippage of the terminal block not only consumes some of the tensile force, causing the actual force applied inside the terminal block to be lower than the value displayed by the testing system, resulting in a misjudgment of the pass / fail status, and is incorrectly included in the deformation of the terminal block itself, making the elastic / plastic deformation assessment ineffective and unable to obtain the true stiffness characteristics, but also, if the slippage of the terminal block on the clamping device is not stopped in time, the clamping device will affect the surface of the terminal block, destroying the nickel plating, tin plating or passivation layer of the terminal block, causing the substrate to be exposed and significantly reducing its corrosion resistance.

[0003] Therefore, this invention proposes an automated push-pull force testing device for electricity meters to solve the above problems. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an automated push-pull force testing device for electricity meters, which can effectively solve the problems in existing technologies.

[0005] (II) Technical Solution To achieve the above objectives, the present invention can be accomplished through the following technical solutions: An automated push-pull force testing device for electricity meters includes a testing machine body. A moving track and a vertical plate are fixedly connected to the upper end of the testing machine body. An adaptive clamping ring is fixedly connected to the side of the vertical plate near the moving track. A moving frame is slidably connected to the upper surface of the moving track. Clamping plates are symmetrically slidably connected to the moving frame. The device also includes a sliding detection and early warning mechanism, a terminal height limiting mechanism, and a track cleaning mechanism. The sliding detection and early warning mechanism includes symmetrically arranged rollers. A rotating shaft is fixedly connected through the center of each roller. Support plates are fixedly connected to both sides of the outer surface of the rotating shaft. The support plates on the same side are fixedly connected to the side wall of the clamping plate. Anti-slip strips are fixedly connected in annularly at equal intervals to the outer surface of each roller. The sliding detection and early warning mechanism is used to provide an early warning when the terminal slips. The terminal height limiting mechanism is used to keep both ends of the terminal fixed at the same height and located between the two rollers. The track cleaning mechanism is used to automatically clean impurities inside the moving track.

[0006] As a further embodiment of the present invention: alarm lights and fixing plates are symmetrically fixedly connected to the upper surface of the clamping plate. A second contact is fixedly connected to the side of the fixing plate away from the alarm light. A first contact is attached to the side of the second contact away from the fixing plate. The first contact and the second contact are electrically connected to the alarm. A movable plate is fixedly connected to the side of the first contact away from the second contact.

[0007] As a further embodiment of the present invention: a slider is fixedly connected to the lower end face of each of the movable plates, and a groove is opened on the upper end face of each of the upper support plates. The sliders are slidably connected in the grooves, and a spring is fixedly connected between each slider and the groove.

[0008] As a further aspect of the present invention: each of the movable plates is fixedly connected to a connecting block at the end away from the first contact point, and each connecting block is rotatably connected to a connecting plate. Each connecting plate is rotatably connected to a disk at the side away from the connecting block, and each disk is fixedly connected to the upper end of the rotating shaft, with the end of the connecting plate near the disk located at the edge of the disk.

[0009] As a further aspect of the present invention: the terminal height limiting mechanism includes a mounting frame, on both sides of the mounting frame are symmetrically provided with vertical grooves, and a limiting plate is slidably connected in each vertical groove at the same height.

[0010] As a further embodiment of the present invention: the mounting frame is symmetrically fixedly connected to the side away from the clamping plate, and a linkage frame is slidably connected between the outer surfaces of the two support columns. Two linkage plates are rotatably connected to both sides of the linkage frame, and the two linkage plates on the same side are rotatably connected to the side walls of two limiting plates on the side away from the linkage frame.

[0011] As a further embodiment of the present invention: a side plate is fixedly connected to the mounting bracket near the linkage bracket, a horizontal groove is provided on the side plate, a horizontal groove is slidably connected in the horizontal groove, a moving block is slidably connected in the horizontal groove, the moving block is fixedly connected to the upper end face of the linkage bracket, a threaded rod is threadedly connected through the moving block, the end of the threaded rod away from the mounting bracket is rotatably connected to the side plate, and a knob is fixedly connected to the end of the threaded rod that passes through the side plate.

[0012] As a further embodiment of the present invention: a pointer is fixedly connected to the center of the upper surface of the moving block, and scale bars are fixedly connected at equal intervals on both sides of the upper surface of the side plate, with the pointer and scale bars corresponding to each other.

[0013] As a further embodiment of the present invention: the track cleaning mechanism includes symmetrically arranged fixed columns, each fixed column having a sliding plate slidably connected to its outer surface, each sliding plate having a cleaning plate fixedly connected to its lower end surface, each cleaning plate being located inside the moving track, each sliding plate having a push plate rotatably connected to both sides, each push plate on the same side having a central plate rotatably connected between them, each central plate having an elastic telescopic column fixedly connected through it, each elastic telescopic column being fixedly connected to the side wall of the moving frame, each elastic telescopic column having a corrugated plate attached to the end away from the moving frame, each corrugated plate having a support frame fixedly connected to the side away from the elastic telescopic column, and each support frame being fixedly connected to the side wall of the moving track.

[0014] As a further aspect of the present invention: a collection box is provided on both sides of the mobile frame, and a card plate is fixedly connected to both sides of the collection box, and the card plate is engaged in the mobile track.

[0015] (III) Beneficial Effects Compared with the prior art, the present invention provides an automated push-pull force testing device for electricity meters, which has the following advantages: 1. The sliding detection and early warning mechanism can synchronously drive the roller to rotate during the sliding of the terminal block, transforming the microscopic sliding that is originally imperceptible to the naked eye into a visible signal of roller rotation. This alerts the staff that an abnormality has occurred in the terminal block during testing, allowing them to immediately interrupt invalid tests and fundamentally eliminating misjudgments of pass / fail due to force loss. This ensures the purity and reliability of every test data and prevents false displacement caused by clamping slippage from being incorrectly included in the deformation of the terminal block itself. This allows subsequent evaluations of the terminal block's elastic deformation, plastic deformation, and true stiffness characteristics to be based entirely on the material's own mechanical response, thereby obtaining key parameters that accurately reflect the product's essential performance. Moreover, intervention at the initial stage of sliding, before the critical point when the terminal surface plating has not been damaged, can maximize the protection of the integrity of the terminal block's plating and the corrosion resistance of the substrate, ensuring that the commercial value and long-term reliability of the tested samples are not affected in any way. The system connects the roller and the clamping plate via a support plate. During the clamping process, the roller automatically conforms to the outer surface of the terminal block, ensuring the gap between the roller and the terminal block is completely eliminated. This provides zero-delay, blind-angle-free detection for any subsequent minor slippage. Furthermore, because the roller is rigidly connected to the clamping plate via the support plate, its relative position is automatically and precisely repositioned when the clamping plate is adjusted for terminals of different thicknesses. Without any additional manual adjustment or complex programming, the detection system intelligently adapts to terminals of various specifications, ensuring consistent and optimal fit and detection readiness for terminals ranging from the finest to the thickest. This significantly expands the application range of the roller.

[0016] 2. By using a disc, connecting plate, connecting block, moving plate, first contact point, and second contact point, the sliding of the roller can be converted into the flashing of the alarm light. This completely eliminates the need for operators to constantly monitor data curves or painstakingly identify minute slips. It transforms complex status monitoring tasks into responses to simple light signals, significantly reducing workload and dependence on operator experience, thereby effectively avoiding missed judgments due to fatigue or distraction.

[0017] 3. The height limiting mechanism of the terminal block ensures that both ends of the terminal block remain horizontal during the tensile test, guaranteeing that the applied tensile force is accurately transmitted along its theoretical force axis. This completely avoids stress concentration caused by unexpected loads such as eccentric loads, bending moments, or torsion, allowing the test results to purely reflect the terminal block's true resistance to axial tensile force. It eliminates other interfering factors, greatly improving the scientific nature of the test and the comparability of the data. Furthermore, the terminal block can be limited between two rollers, allowing the rollers to perform sliding tests on terminals of different thicknesses, further expanding the application range of the rollers.

[0018] By using a pointer and scale bar, it is possible to avoid the situation where the limit plates are over-clamped on the terminals, making it easier for operators to adjust the distance between the two limit plates. The scale bar and pointer transform the "feel operation" that originally relied on touch and experience into a measurable and reproducible precise physical parameter. Operators can not only accurately set the distance to the specified value according to the preset standard, but also completely eliminate the randomness of clamping force caused by individual differences or state fluctuations, providing completely consistent initial conditions for each test, ensuring the repeatability and comparability of test data, but also eliminate the possibility of terminal deformation, indentation or internal structural damage due to excessive clamping force.

[0019] 4. Through the set track cleaning mechanism, during the horizontal reciprocating movement of the drive frame on the track, the cleaning plate can be driven to reciprocate horizontally inside the track, cleaning the impurities remaining inside the track into the collection boxes on both sides. The cleaning plate is connected to the drive frame, which not only ensures that track cleaning is completed synchronously with each normal test reciprocating motion, without the need for additional drive or machine stop cleaning, but also effectively prevents impurities from hardening, caking, or causing damage to the drive frame inside the track. This avoids problems such as accelerated wear, abnormal noise, or even track scrapping caused by lubrication failure and particle wear, significantly reducing the risk of unexpected downtime and thus improving its service life. Attached Figure Description

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the upper connection structure of the mobile frame of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram of region A in the middle; Figure 4 For the present invention Figure 2 Enlarged structural diagram of region B in the middle; Figure 5 For the present invention Figure 2 Another structural diagram from a different perspective; Figure 6 This is a schematic diagram of the connection structure between the moving track and the moving frame of the present invention; Figure 7 For the present invention Figure 6 A magnified structural diagram of region C in the middle.

[0022] In the diagram: 1. Test machine body; 2. Moving track; 3. Vertical plate; 4. Adaptive clamping ring; 5. Moving frame; 6. Clamping plate; 701. Roller; 702. Support plate; 703. Anti-slip strip; 704. Rotating shaft; 705. Disc; 706. Connecting plate; 707. Connecting block; 708. Moving plate; 709. First contact point; 710. Second contact point; 711. Fixing plate; 712. Alarm light; 713. Slide groove; 714. Slider; 715. Spring; 801. Mounting bracket; 802. Vertical slot; 803. Limiting plate; 804. Linkage plate; 805. Linkage frame; 806. Side plate; 807. Horizontal slot; 808. Threaded rod; 809. Moving block; 810. Knob; 811. Scale bar; 812. Pointer; 813. Support column; 901. Cleaning plate; 902. Slide plate; 903. Fixing post; 904. Push plate; 905. Center plate; 906. Elastic telescopic post; 907. Support frame; 908. Corrugated plate; 909. Collection box; 910. Card plate. Detailed Implementation

[0023] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] This embodiment provides an automated push-pull force testing device for electricity meters, such as... Figure 1 - Figure 7 As shown, the test machine includes a test machine body 1. A moving track 2 and a vertical plate 3 are fixedly connected to the upper end of the test machine body 1. An adaptive clamping ring 4 is fixedly connected to the side of the vertical plate 3 near the moving track 2. A moving frame 5 is slidably connected to the upper end face of the moving track 2. A clamping plate 6 is symmetrically slidably connected to the moving frame 5. The test machine also includes a sliding detection and warning mechanism, a terminal height limiting mechanism, and a track cleaning mechanism. The sliding detection and warning mechanism includes symmetrically arranged rollers 701. A rotating shaft 704 is fixedly connected through the center of each roller 701. Support plates 702 are fixedly connected to both sides of the outer surface of the rotating shaft 704. Support plates 702 on the same side are fixedly connected to the side wall of the clamping plate 6. Anti-slip strips 703 are fixedly connected in an annular pattern at equal intervals to the outer surface of each roller 701. The sliding detection and warning mechanism is used to provide a warning when the terminal slips.

[0025] In this embodiment, as Figure 3 As shown, alarm lights 712 and fixing plates 711 are symmetrically fixedly connected to the upper surface of clamping plates 6. Second contacts 710 are fixedly connected to the side of fixing plates 711 away from alarm lights 712. First contacts 709 are attached to the side of second contacts 710 away from fixing plates 711. First contacts 709 and second contacts 710 are electrically connected to the alarm. A moving plate 708 is fixedly connected to the side of first contacts 709 away from second contacts 710. When the moving plate 708 causes the first contacts 709 and second contacts 710 to separate, the alarm lights 712 will be turned on and start flashing.

[0026] In this embodiment, as Figure 4As shown, sliders 714 are fixedly connected to the lower end face of the movable plate 708, and grooves 713 are opened on the upper end face of the upper support plate 702. The sliders 714 are slidably connected in the grooves 713. Springs 715 are fixedly connected between the sliders 714 and the grooves 713. When the movable plate 708 moves horizontally on the upper end face of the support plate 702 through the sliders 714 and the grooves 713, it will compress the springs 715. Through the rebound force of the springs 715, the sliders 714 can be pushed to move to the initial position after the force on them disappears.

[0027] In this embodiment, as Figure 3 As shown, each end of the movable plate 708 away from the first contact point 709 is fixedly connected to a connecting block 707, and each connecting block 707 is rotatably connected to a connecting plate 706. Each connecting plate 706 away from the connecting block 707 is rotatably connected to a disc 705. The discs 705 are fixedly connected to the upper end of the rotating shaft 704, and the end of the connecting plate 706 near the disc 705 is located at the edge of the disc 705. When the rotating shaft 704 drives the disc 705 to rotate, the disc 705 will pull one end of the connecting plate 706 to move, and at the same time, the connecting plate 706 drives the movable plate 708 to move horizontally closer to the disc 705 through the connecting block 707.

[0028] In existing technologies, due to the manual operation of the clamping components, excessive tension can cause the terminal block to slightly slip on the clamping components during tensile testing. This slippage is imperceptible to the naked eye. The slippage not only consumes some of the tension, resulting in a lower actual force applied to the terminal than the test system displays, leading to misjudgment of pass / fail status and incorrect inclusion of the terminal's deformation, rendering elastic / plastic deformation assessments ineffective and failing to obtain true stiffness characteristics, but also, if the slippage is not stopped promptly, the clamping components can damage the terminal surface, destroying the nickel, tin, or passivation layers, exposing the substrate and significantly reducing its corrosion resistance. In contrast, this technology can synchronously drive the roller 701 to rotate during the terminal slippage process, preventing the slippage that was previously imperceptible to the naked eye. Imperceptible micro-slippage is transformed into a visible signal of roller 701 rotation, alerting staff to any abnormalities in the terminal during testing. This not only allows staff to immediately interrupt invalid tests, fundamentally eliminating misjudgments of pass / fail due to force loss, but also ensures the purity and reliability of every test data set. It prevents false displacements caused by clamping slippage from being incorrectly included in the terminal's own deformation. This allows subsequent assessments of the terminal's elastic deformation, plastic deformation, and true stiffness characteristics to be based entirely on the material's own mechanical response, thereby obtaining key parameters that accurately reflect the product's essential performance. Moreover, intervention at the initial stage of slippage, before the critical point when the terminal's surface plating is damaged, maximizes the protection of the terminal's plating integrity and the substrate's corrosion resistance, ensuring that the commercial value and long-term reliability of the tested samples remain unaffected. The support plate 702 connects the roller 701 and the clamping plate 6, enabling the roller 701 to automatically conform to the outer surface of the terminal during the clamping process. This not only ensures that the gap between the roller 701 and the terminal surface is completely eliminated, providing zero-delay and blind-angle detection conditions for any subsequent minor slippage, but also, because the roller 701 is rigidly connected to the clamping plate 6 via the support plate 702, the relative position of the roller 701 is automatically and accurately repositioned when the clamping plate 6 is adjusted for terminals of different thicknesses. Without any additional manual adjustment or complex program settings, the detection system can intelligently adapt to terminals of various specifications, ensuring that terminals from the finest to the thickest achieve completely consistent and optimal fit and detection readiness, greatly expanding the application range of the roller 701.

[0029] In other aspects, this embodiment also provides a terminal height mechanism for keeping both ends of the terminal fixed at the same height and located between two rollers 701, such as... Figure 2 , Figure 4 and Figure 5As shown, the terminal height limiting mechanism includes a mounting bracket 801. Vertical grooves 802 are symmetrically opened on both sides of the mounting bracket 801, and limit plates 803 are slidably connected in the vertical grooves 802 at the same height.

[0030] In this embodiment, as Figure 2 As shown, the mounting frame 801 is symmetrically fixedly connected to the support column 813 on the side away from the clamping plate 6. The outer surfaces of the two support columns 813 are slidably connected to the linkage frame 805. Two linkage plates 804 are rotatably connected to both sides of the linkage frame 805. The two linkage plates 804 on the same side are rotatably connected to the side walls of two limit plates 803 on the side away from the linkage frame 805. When the linkage frame 805 slides horizontally on the outer surface of the support column 813, the linkage plates 804 can pull the limit plates 803 closer or further apart.

[0031] In this embodiment, as Figure 4 As shown, a side plate 806 is fixedly connected to the mounting bracket 801 near the linkage bracket 805. A transverse groove 807 is provided on the side plate 806. A sliding block 809 is slidably connected within the transverse groove 807. The sliding block 809 is fixedly connected to the upper end face of the linkage bracket 805. A threaded rod 808 is threadedly connected through the sliding block 809. The end of the threaded rod 808 away from the mounting bracket 801 is rotatably connected to the side plate 806. A knob 810 is fixedly connected to the end of the threaded rod 808 that passes through the side plate 806. When the knob 810 is rotated, causing the threaded rod 808 to rotate, the threaded connection between the threaded rod 808 and the sliding block 809 enables the sliding block 809 to slide within the transverse groove 807, thereby causing the linkage bracket 805 connected to the lower end face to move horizontally.

[0032] In this embodiment, as Figure 4 As shown, a pointer 812 is fixedly connected to the center of the upper surface of the moving block 809, and scale bars 811 are fixedly connected at equal intervals on both sides of the upper surface of the side plate 806. The pointer 812 and the scale bars 811 correspond to each other. By observing the scale bar 811 pointed to by the pointer 812, the distance moved by the moving block 809 can be controlled.

[0033] Compared with existing technologies, this method can ensure that the two ends of the terminal remain horizontal during the tensile test of the terminal, ensuring that the applied tensile force is accurately transmitted along its theoretical force axis. It completely avoids stress concentration caused by the introduction of unexpected loads such as off-center load, bending moment or torsion, so that the test results purely reflect the true performance of the terminal in resisting axial tensile force, eliminate other interference factors, greatly improve the scientific nature of the test and the comparability of the data, and can also limit the terminal between two rollers 701, so that the rollers 701 can slide to test terminals of different thicknesses, further expanding the application range of the rollers 701.

[0034] In other aspects, this embodiment also provides a track cleaning mechanism for automatically cleaning impurities inside the moving track 2, such as... Figure 6 and Figure 7 As shown, the track cleaning mechanism includes symmetrically arranged fixed columns 903. Slide plates 902 are slidably connected to the outer surface of each fixed column 903. Cleaning plates 901 are fixedly connected to the lower end face of each slide plate 902. The cleaning plates 901 are all located inside the moving track 2. Push plates 904 are rotatably connected to both sides of each slide plate 902. A center plate 905 is rotatably connected between the two push plates 904 on the same side. Elastic telescopic columns 906 are fixedly connected through each center plate 905. The elastic telescopic columns 906 are fixedly connected to the side wall of the moving frame 5. A corrugated plate 908 is attached to the end of each elastic telescopic column 906 away from the moving frame 5. A support frame 907 is fixedly connected to the side of each corrugated plate 908 away from the elastic telescopic column 906. The support frame 907 is fixedly connected to the side wall of the moving track 2.

[0035] In this embodiment, as Figure 7 As shown, collection boxes 909 are provided on both sides of the mobile frame 5. Card plates 910 are fixedly connected to both sides of the collection box 909. Card plates 910 are locked in the mobile track 2. The collection box 909 can be removed from the mobile track 2 by the mutual locking of the card plates 910 and the mobile track 2.

[0036] Compared with existing technologies, during the horizontal reciprocating movement of the drive frame 5 on the moving track 2, the cleaning plate 901 can be driven to reciprocate horizontally inside the moving track 2, cleaning the impurities remaining inside the moving track 2 into the collection boxes 909 on both sides. The cleaning plate 901 and the moving frame 5 are connected to each other, which not only allows the track cleaning to be completed synchronously with each normal test reciprocating movement without the need for additional drive or machine stop cleaning, but also effectively prevents impurities from hardening, caking or causing damage to the moving frame 5 inside the moving track 2. This avoids the problems of accelerated wear, abnormal noise or even scrapping of the moving track 2 caused by lubrication failure and particle wear, significantly reducing the risk of unexpected shutdown and thus improving its service life.

[0037] The overall working process and principles involved in the above embodiments are as follows: It should be noted that the clamping plates 6 move closer to each other using existing technology to clamp and fix the wiring terminals. The moving frame 5 moves horizontally on the moving track 2 by electric drive. The elastic telescopic column 906 will retract when it is squeezed. When the squeezing force is removed, the elastic telescopic column 906 can automatically extend and reset through the rebound force of the elastic telescopic column 906.

[0038] When staff need to perform a tensile test on the terminals of the electricity meter, they first clamp one end of the terminal onto the adaptive clamping ring 4, then pass the other end of the terminal through the roller 701, the clamping plate 6, and the two limiting plates 803 in sequence. Next, they rotate the knob 810, causing the threaded rod 808 to rotate on the side plate 806. The threaded rod 808 is connected to the sliding block 809 on the side plate 806, allowing the sliding block 809 to move horizontally within the transverse groove 807 on the side plate 806. Since the lower end face of the sliding block 809 is connected to a linkage frame 805, which is slidably connected to the outer surfaces of the two support columns 813, and linkage plates 804 are rotatably connected to both sides of the linkage frame 805, and these linkage plates 804 are rotatably connected to the side walls of the limiting plates 803, the horizontal movement of the sliding block 809 causes the linkage frame 805 connected to its lower end face to slide horizontally synchronously on the outer surface of the support columns 813, pulling the linkages on both sides. The connection to one end of the linkage plate 804 gradually reduces the tilt angle of the linkage plate 804. The limiting plate 803 connected to the side of the linkage plate 804 away from the linkage frame 805 slides and approaches each other synchronously in the vertical grooves 802 opened on both sides of the mounting frame 801. The distance between the two limiting plates 803 is the same as the diameter of the terminal. By limiting the terminal through the two limiting plates 803, not only are the two ends of the terminal kept horizontal, ensuring that the applied tension is accurately transmitted along its theoretical force axis, but stress concentration caused by the introduction of unexpected loads such as off-center load, bending moment or torsion is completely avoided. This makes the test results purely reflect the true performance of the terminal in resisting axial tension, eliminates other interference factors, greatly improves the scientific nature of the test and the comparability of the data, and can also limit the terminal between the two rollers 701, so that the rollers 701 can slide and test the terminal with different thicknesses, further expanding the application range of the rollers 701. When the moving block 809 moves through the linkage frame 805 and linkage plate 804, causing the two limit plates 803 to move closer to each other, the pointer 812 is fixedly connected to the upper surface of the moving block 809. The pointer 812 corresponds to the scale bar 811 connected to the upper surface of the side plate 806. The operator can observe the distance moved by the moving block 809, thereby controlling the distance between the limit plates 803 and avoiding the limit plates 803 from over-clamping the terminals. The scale bar 811 and pointer 812 transform the "feel operation" that originally relied on touch and experience into a measurable and reproducible precise physical parameter. The operator can not only set the distance to the specified value according to the preset standard, but also completely eliminate the randomness of clamping force caused by individual differences or state fluctuations, providing a completely consistent initial condition for each test, ensuring the repeatability and comparability of test data, and eliminating the possibility of terminal deformation, indentation or internal structural damage due to excessive clamping force. After limiting the height of both ends of the terminal block, the operator can manually control the clamping plates 6 to move closer together on the movable frame 5, clamping and fixing the terminal block away from the adaptive clamping ring 4. During the process of the clamping plates 6 moving closer together, because the side walls of the clamping plates 6 are connected to support plates 702, and a rotating shaft 704 is rotatably connected between the support plates 702 on the same side, and the rollers 701 are rotatably connected to the rotating shaft 704, as the clamping plates 6 move closer together, the support plates 702 and the rotating shaft 704 can drive the rollers 701 to move synchronously relative to each other, fitting against the outer surface of the terminal block. This not only ensures that the rollers 701 are in contact with the terminal block but also... The gaps on the surface of the terminals are completely eliminated, providing zero-delay and blind-angle detection conditions for any subsequent minor slippage. Moreover, since the roller 701 is rigidly connected to the clamping plate 6 through the support plate 702, when the clamping plate 6 is adjusted for terminals of different thicknesses, the relative position of the roller 701 will be automatically and accurately repositioned. Without any additional manual adjustment or complex program settings, the detection system can intelligently adapt to terminals of various specifications, ensuring that terminals from the finest to the thickest can obtain completely consistent and optimal fit and detection readiness, greatly expanding the application range of the roller 701. After the terminals are fully secured, the operator can use the electrically driven movable frame 5 to slide horizontally within the movable track 2, moving away from the adaptive clamping ring 4, to perform a tension test on the terminals fixed between the clamping plate 6 and the adaptive clamping ring 4. When the terminals clamped between the clamping plates 6 slip, the anti-slip strip 703 connected to the outer surface of the roller 701 will pull the roller 701 to roll, causing the rotating shaft 704 connected to the roller 701 to rotate on the support plate 702. This transforms the microscopic slippage, which is originally imperceptible to the naked eye, into a visible signal of the roller 701's rotation, alerting the operator that an abnormality has occurred in the terminals during the test. This not only allows the operator to... The system allows personnel to immediately interrupt invalid tests, fundamentally eliminating misjudgments of pass / fail due to force loss. This ensures the purity and reliability of every test data, preventing false displacements caused by clamping slippage from being incorrectly included in the terminal's own deformation. This allows subsequent assessments of the terminal's elastic deformation, plastic deformation, and true stiffness characteristics to be based entirely on the material's own mechanical response, thereby obtaining key parameters that accurately reflect the product's essential performance. Moreover, intervention at the initial sliding stage, before the critical point when the terminal's surface plating is damaged, maximizes the protection of the terminal's plating integrity and the substrate's corrosion resistance, ensuring that the commercial value and long-term reliability of the tested samples are not affected in the slightest. During the rotation of the shaft 704 driven by the roller 701, a disc 705 is connected to the outer surface of the shaft 704. A connecting plate 706 is rotatably connected to the edge of the upper surface of the disc 705. The end of the connecting plate 706 away from the disc 705 is rotatably connected to the movable plate 708 via a connecting block 707. Therefore, as the disc 705 rotates, it pulls one end of the connecting plate 706, which in turn pulls the movable plate 708 closer to the disc 705 via the connecting block 707. This causes the movable plate 708 to drive the slider 714 connected to its lower end to slide within the groove 713 on the upper surface of the support plate 702, compressing the spring 715. When the movable plate 708 moves horizontally closer to the disc 705... When the device approaches the disk 705, it will cause the first contact 709 connected to the side away from the disk 705 to move synchronously, causing the first contact 709 and the second contact 710 to separate. Since the first contact 709 and the second contact 710 are electrically connected to the alarm light 712, the alarm light 712 will be turned on and flash as the first contact 709 and the second contact 710 separate. This completely eliminates the need for operators to constantly monitor data curves or painstakingly identify minute slippages, transforming the complex status monitoring task into a response to a simple light signal. This significantly reduces the workload and dependence on the operator's experience, thereby effectively avoiding missed judgments due to fatigue or distraction. When the staff moves the electric-driven mobile frame 5 horizontally on the mobile track 2, the mobile frame 5 is connected to fixed columns 903 on both sides. Slide plates 902 are slidably connected to the outer surfaces of the fixed columns 903, and cleaning plates 901 are connected to the lower surfaces of the slide plates 902. Since the cleaning plates 901 are all located within the mobile track 2, as the mobile frame 5 moves, the fixed columns 903 and slide plates 902 drive the cleaning plates 901 to slide synchronously within the mobile track 2, cleaning the interior of the mobile track 2. At this time, because the mobile frame 5 is far from the track... Each fixed column 903 is connected to an elastic telescopic column 906 on one side. The ends of the elastic telescopic columns 906 away from the movable frame 5 are attached to the corrugated sidewall of the corrugated plate 908. Therefore, during the movement of the movable frame 5, the elastic telescopic columns 906 will move along the corrugated sidewall of the corrugated plate 908. When the elastic telescopic columns 906 move to the crest of the corrugated plate 908, they will automatically retract. Conversely, when the elastic telescopic columns 906 move to the trough of the corrugated plate 908, they will automatically extend due to the rebound force of the elastic telescopic columns 906. During the retraction of the elastic telescopic column 906, the center plate 905 connected to its outer surface moves closer to the movable frame 5. This causes the center plate 905 to push the sliding plate 902 on the outer surface of the fixed column 903 away from the movable frame 5 via the push plates 904 rotatably connected to both sides. Conversely, when the elastic telescopic column 906 extends, it pushes the center plate 905 away from the movable frame 5. At this time, the center plate 905 will pull the sliding plates 902 on both sides of the fixed column 903 to slide closer to the movable frame 5 via the push plates 904. This causes the sliding plates 902 to slide horizontally back and forth on the outer surface of the fixed column 903, causing the cleaning plate 901 connected to its lower end to reciprocate synchronously inside the moving track 2. The moving frame 5 cleans the moving track 2. When the moving frame 5 moves the cleaning plate 901 close to the collection box 909, the cleaning plate 901 pushes the impurities inside the moving track 2 into the collection box 909 for collection. The cleaning plate 901 and the moving frame 5 are connected to each other, which not only allows the track cleaning to be completed synchronously in each normal test cycle without additional driving or stopping for cleaning, but also effectively prevents impurities from hardening, caking or causing damage to the moving frame 5 in the moving track 2. This avoids the problems of accelerated wear, abnormal noise or even scrapping of the moving track 2 caused by lubrication failure and particle wear, significantly reduces the risk of unexpected shutdown, and thus improves its service life. When there are too many impurities inside the collection box 909, the staff can lift the collection box 909 upwards. The collection box 909 can be removed from the inside of the moving track 2 by the interlocking of the card plates 910 connected to both sides of the collection box 909 and the moving track 2, so that the staff can centrally process the impurities inside the collection box 909.

[0039] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automated push-pull force testing device for an electricity meter, comprising a testing machine body (1), wherein a moving track (2) and a vertical plate (3) are fixedly connected to the upper end of the testing machine body (1), an adaptive clamping ring (4) is fixedly connected to the side of the vertical plate (3) near the moving track (2), a moving frame (5) is slidably connected to the upper end surface of the moving track (2), and clamping plates (6) are symmetrically slidably connected to the moving frame (5), characterized in that, It also includes a sliding detection and early warning mechanism, a terminal block height limit mechanism, and a track cleaning mechanism; The sliding detection and early warning mechanism includes symmetrically arranged rollers (701), with a rotating shaft (704) fixedly connected through the center of each roller (701). Support plates (702) are fixedly connected to both sides of the outer surface of the rotating shaft (704). The support plates (702) on the same side are fixedly connected to the side wall of the clamping plate (6). Anti-slip strips (703) are fixedly connected to the outer surface of each roller (701) at equal intervals in a ring. The sliding detection and early warning mechanism is used to provide an early warning when the terminal block slides. The terminal height limiting mechanism is used to keep both ends of the terminal fixed at the same height and located between two rollers (701); The track cleaning mechanism is used to automatically clean impurities inside the moving track (2).

2. The automated push-pull force testing device for electricity meters according to claim 1, characterized in that, The upper surface of the clamping plate (6) is symmetrically fixed with an alarm light (712) and a fixing plate (711). The side of the fixing plate (711) away from the alarm light (712) is fixedly connected with a second contact (710). The side of the second contact (710) away from the fixing plate (711) is attached to a first contact (709). The first contact (709) and the second contact (710) are electrically connected to the alarm. The side of the first contact (709) away from the second contact (710) is fixedly connected to a moving plate (708).

3. The automated push-pull force testing device for electricity meters according to claim 2, characterized in that, The lower end face of each movable plate (708) is fixedly connected with a slider (714), and the upper end face of each support plate (702) is provided with a groove (713). The sliders (714) are slidably connected in the grooves (713), and springs (715) are fixedly connected between the sliders (714) and the grooves (713).

4. The automated push-pull force testing device for electricity meters according to claim 3, characterized in that, Each of the movable plates (708) is fixedly connected to a connecting block (707) at the end away from the first contact point (709). Each of the connecting blocks (707) is rotatably connected to a connecting plate (706). Each of the connecting plates (706) is rotatably connected to a disc (705) on the side away from the connecting block (707). Each of the discs (705) is fixedly connected to the upper end of the rotating shaft (704), and the end of the connecting plate (706) near the disc (705) is located at the edge of the disc (705).

5. The automated push-pull force testing device for electricity meters according to claim 1, characterized in that, The terminal height limiting mechanism includes a mounting bracket (801), on both sides of the mounting bracket (801) are symmetrically provided with vertical grooves (802), and at the same height, a limiting plate (803) is slidably connected in the vertical groove (802).

6. The automated push-pull force testing device for electricity meters according to claim 5, characterized in that, The mounting bracket (801) is symmetrically fixedly connected to a support column (813) on the side away from the clamping plate (6). A linkage frame (805) is slidably connected between the outer surfaces of the two support columns (813). Two linkage plates (804) are rotatably connected to both sides of the linkage frame (805). The two linkage plates (804) on the same side are rotatably connected to the side walls of two limiting plates (803) on the side away from the linkage frame (805).

7. The automated push-pull force testing device for electricity meters according to claim 6, characterized in that, The mounting bracket (801) is fixedly connected to a side plate (806) on the side near the linkage bracket (805). A horizontal groove (807) is provided on the side plate (806). A horizontal groove (807) is slidably connected in the horizontal groove (807). A moving block (809) is slidably connected in the horizontal groove (807). The moving block (809) is fixedly connected to the upper end face of the linkage bracket (805). A threaded rod (808) is threadedly connected through the moving block (809). One end of the threaded rod (808) away from the mounting bracket (801) is rotatably connected to the side plate (806). A knob (810) is fixedly connected to one end of the threaded rod (808) that passes through the side plate (806).

8. The automated push-pull force testing device for electricity meters according to claim 7, characterized in that, A pointer (812) is fixedly connected to the center of the upper surface of the moving block (809), and scale bars (811) are fixedly connected at equal intervals on both sides of the upper surface of the side plate (806). The pointer (812) and the scale bars (811) correspond to each other.

9. The automated push-pull force testing device for an electricity meter according to claim 1, characterized in that, The track cleaning mechanism includes symmetrically arranged fixed columns (903), with sliding plates (902) slidably connected to the outer surface of each fixed column (903). Cleaning plates (901) are fixedly connected to the lower end face of each sliding plate (902). The cleaning plates (901) are all located inside the moving track (2). Push plates (904) are rotatably connected to both sides of each sliding plate (902). A center plate (905) is rotatably connected between the two push plates (904) on the same side. An elastic telescopic column (906) is fixedly connected through each center plate (905). The elastic telescopic column (906) is fixedly connected to the side wall of the moving frame (5). A corrugated plate (908) is attached to the end of each elastic telescopic column (906) away from the moving frame (5). A support frame (907) is fixedly connected to the side of each corrugated plate (908) away from the elastic telescopic column (906). The support frame (907) is fixedly connected to the side wall of the moving track (2).

10. The automated push-pull force testing device for an electricity meter according to claim 9, characterized in that, Collection boxes (909) are provided on both sides of the mobile frame (5), and card plates (910) are fixedly connected to both sides of the collection boxes (909). The card plates (910) are all locked in the mobile track (2).

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