A double-station network distribution automation test fixture

Abstract

The utility model provides a kind of double-station network distribution automation test fixture, including current voltage tester, substrate, first test station of fixed installation in the substrate one side, pull rod assembly being arranged on the substrate and with the same side of the first test station, second test station being arranged on the substrate and being located above the pull rod assembly, guide assembly and test component, the guide assembly includes limit board and the guide rod being connected between the limit board, the test component includes test board and telescopic probe module being installed on the test board, the four corners of the test board are slidably fitted on the guide rod, the output end of the pull rod assembly is fixedly connected with the test board, so that test board slides along guide rod, the position of the telescopic probe module is respectively corresponding with the first test station and the second test station. The utility model relates to the field of test fixture.

Description

Technical Field

[0001] This utility model relates to the field of test fixtures, and in particular to a dual-station power distribution network automation test fixture. Background Technology

[0002] With the increasing demand for intelligent and efficient power system development, higher requirements are placed on the performance stability and reliability of various distribution network automation products. This requires comprehensive and rigorous testing before products leave the factory to ensure that they can play a stable and reliable role in power grid operation.

[0003] For example, Chinese utility model patent CN215449535U discloses a power module testing device. This application discloses a power board testing fixture, which includes a frame, a base disposed on the frame, a placement plate, and a testing component for testing power board data. The base is equipped with a plurality of parallel pins. One end of each pin is connected to the testing component, and the other end is used to connect to the power board under test. A plurality of telescopic members are disposed between the placement plate and the base. The placement plate has a plurality of through holes, the position, number, and shape of which are adapted to the pins. When the telescopic members are in their maximum extended state, the pins are located within the through holes of the placement plate; when the telescopic members are in their maximum retracted state, the pin tips are exposed outside the placement plate. This application has the effect of maintaining the accuracy of the test results of the testing fixture.

[0004] This solution largely solves the problem of inaccurate test results caused by poor contact of the test board during testing. However, traditional testing technologies often use single-station test fixtures, which can only test one product at a time. This results in operational waiting periods during testing, greatly reducing testing efficiency. Furthermore, different models and specifications of distribution network automation products often require different test fixtures, making the test fixtures less versatile.

[0005] Therefore, it is essential to design a dual-station automated testing fixture for power distribution networks. Utility Model Content

[0006] To address the shortcomings of the existing technology, this utility model provides a dual-station automated power distribution test fixture, aiming to solve the problems of low testing efficiency and poor versatility of single-station test fixtures in the existing technology.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A dual-station automated power distribution network testing fixture includes a current and voltage tester, a base plate, a first test stage fixedly mounted on one side of the base plate, a pull rod assembly disposed on the base plate and on the same side as the first test stage, a second test stage disposed on the base plate and located above the pull rod assembly, a guide assembly, and a testing assembly. The guide assembly includes a limiting plate and a guide rod connected between the limiting plates. The testing assembly includes a test plate and a telescopic probe module mounted on the test plate. The four corners of the test plate are slidably fitted onto the guide rod. The output end of the pull rod assembly is fixedly connected to the test plate, allowing the test plate to slide along the guide rod. The positions of the telescopic probe modules correspond to the first test stage and the second test stage, respectively.

[0008] Based on the above, the beneficial effects of this novel power supply testing fixture are that it solves the problems of low testing efficiency and poor versatility of existing single-station testing fixtures. This is mainly reflected in the following aspects: This invention achieves parallel testing at two stations by configuring a first and second testing platform, two test board modules mounted on the upper surface of a sliding plate, and a pull rod assembly to drive the test board modules. Operators can test two power supplies simultaneously, thus solving the problem of low testing efficiency in single-station testing fixtures. Furthermore, the test board modules mounted on the sliding plate can be disassembled and replaced when testing different models and specifications of power supplies, eliminating the need to replace the entire fixture, thereby solving the problem of poor versatility of testing fixtures. In summary, this invention not only improves product testing time and reduces labor costs but also enhances the versatility of the testing fixture.

[0009] Furthermore, the telescopic probe module includes a front connecting part, a spring, and a rear connecting part. The front connecting part is provided with a first limiting part and a second limiting part. When there is a gap between the first limiting part and the second limiting part, the spring is in a compressed state. When the first limiting part and the second limiting part are in contact with each other, the spring is in a stretched state and restricts the displacement of the front connecting part.

[0010] Furthermore, the pull rod assembly includes a support base fixed on the base plate, a handle, a pair of connecting pieces, a guide sleeve, and a connecting rod. One end of the support base is hinged to the bottom of the handle, and the other end is fixedly provided with a guide sleeve. The guide sleeve is a hollow sleeve. The connecting rod passes through and slides in cooperation with the inner hole of the guide sleeve. The two connecting pieces are respectively arranged parallel to each other on the left and right sides of the connecting rod. One end of each connecting piece is hinged to the middle of the handle, and the other end is hinged to the connecting rod. The other end of the connecting rod that is hinged to the connecting piece is fixedly connected to the test plate. When the handle is pulled relative to the support base, the two connecting pieces drive the connecting rod to slide horizontally in the guide sleeve, thereby driving the test plate to slide along the axial direction of the guide rod.

[0011] Furthermore, both the first test bench and the second test bench include a power supply carrier board, two positioning blocks disposed on the upper part of the power supply carrier board near the front edge, and two limiting blocks disposed on the upper part of the power supply carrier board near the rear edge.

[0012] Furthermore, the power supply carrier board is provided with a groove located between two positioning blocks, and the upper surface of the positioning blocks is provided with an inclined groove, which is arranged towards the center of the power supply carrier board.

[0013] Based on the above, the beneficial effect of having a slanted groove on the upper surface of the positioning block is that when placing the power supply under test, by reducing the contact area between the power supply under test and the positioning block, the frictional collision force during the assembly process is effectively reduced, thereby reducing wear on the contact surface.

[0014] Furthermore, the guide assembly includes two sets of limiting plates, which are respectively fixed on the base plate and located at both ends of the sliding path of the test assembly; two guide rods are installed in parallel between each set of limiting plates, and the two sets of guide rods are parallel to each other and extend along the sliding direction of the test assembly, and the length of the guide rods is a fixed length, so as to maintain the straightness and guiding accuracy of the test assembly during the sliding process and avoid the test plate posture deviation caused by the change of the guide rod length.

[0015] Furthermore, the rear connection portion of the telescopic probe module is connected to the detection port of the current and voltage tester via a wire.

[0016] Based on the above, the telescopic probe of the telescopic probe module can avoid damage to the power terminals from hard impacts, reduce the risk of probe bending and breakage, and thus extend the service life of the probe.

[0017] To more clearly illustrate the above-mentioned features of this utility model and the objectives it aims to achieve, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the present invention; Figure 3 This is the front view of the present invention; Figure 4 This is a schematic diagram of the structure of the tie rod assembly of this utility model; Figure 5 This is a cross-sectional view of the telescopic probe of this utility model. Detailed Implementation

[0019] like Figures 1-5 As shown, a dual-station power distribution network automation testing fixture includes a current and voltage tester 1, a base plate 2, a first test stage 3 fixedly mounted on one side of the base plate 2, a pull rod assembly 4 disposed on the base plate 2 and on the same side as the first test stage 3, a second test stage 5 disposed on the base plate 2 and located above the pull rod assembly 4, a guide assembly 6, and a testing assembly 7. The guide assembly 6 includes a limiting plate 61 and a guide rod 62 connected between the limiting plates 61. The testing assembly 7 includes a test plate 71 and a telescopic probe module 72 mounted on the test plate 71. The four corners of the test plate 71 are slidably fitted onto the guide rod 62. The output end of the pull rod assembly 4 is fixedly connected to the test plate 71, allowing the test plate 71 to slide along the guide rod 62. The positions of the telescopic probe module 72 correspond to the first test stage 3 and the second test stage 5, respectively.

[0020] The telescopic probe module 72 includes a front connecting part 721, a spring 722, and a rear connecting part 723. The front connecting part 721 is provided with a first limiting part 724 and a second limiting part 725. When there is a gap between the first limiting part 724 and the second limiting part 725, the spring 722 is in a compressed state. When the first limiting part 724 and the second limiting part 725 are in contact with each other, the spring 722 is in a stretched state and restricts the displacement of the front connecting part 721. The number of telescopic probes in the telescopic probe module 72 can be manually adjusted according to the needs of the product to be tested.

[0021] The pull rod assembly 4 includes a support base 41 fixed on the base plate 2, a handle 42, a pair of connecting pieces 43, a guide sleeve 44, and a connecting rod 45. One end of the support base 41 is hinged to the bottom of the handle 42, and the other end is fixedly provided with a guide sleeve 44. The guide sleeve 44 is a hollow sleeve. The connecting rod 45 passes through and slides in cooperation with the inner hole of the guide sleeve 44. The two connecting pieces 43 are respectively arranged parallel to each other on the left and right sides of the connecting rod 45. One end of the connecting piece 43 is hinged to the middle of the handle 42, and the other end is hinged to the connecting rod 45. The other end of the connecting rod 45, which is hinged to the connecting piece, is fixedly connected to the test plate 71. When the handle 42 is pulled relative to the support base 41, the two connecting pieces 43 drive the connecting rod 45 to slide horizontally in the guide sleeve 44, thereby driving the test plate 71 to slide axially along the guide rod 62.

[0022] The first test bench 3 and the second test bench 5 both include a power supply carrier board 31, two positioning blocks 32 located on the upper part of the power supply carrier board 31 near the front edge, and two limiting blocks 33 located on the upper part of the power supply carrier board 31 near the rear edge.

[0023] The power carrier board 31 is provided with a groove 34 located between two positioning blocks 32, and the upper surface of the positioning block 32 is provided with an inclined groove 35, which is arranged towards the center of the power carrier board 31.

[0024] The guide assembly 6 includes two sets of limiting plates 61, which are respectively fixed on the base plate 2 and located at both ends of the sliding path of the test assembly 7. Two guide rods 62 are installed in parallel between each set of limiting plates 61. The two sets of guide rods 62 are parallel to each other and extend along the sliding direction of the test assembly 7. The length of the guide rods 62 is fixed to maintain the straightness and guiding accuracy of the test assembly 7 during the sliding process and to avoid the attitude deviation of the test plate 71 caused by the change of the guide rod length.

[0025] The rear connection 723 of the telescopic probe module 72 is connected to the detection port of the current and voltage tester 1 via a wire 8.

[0026] In summary, the specific implementation of this utility model is as follows: The dual-station automated power distribution test fixture includes a base plate 2, a first test platform 3, a second test platform 5, a pull rod assembly 4, a guide assembly 6, and a test assembly 7. Before use, it is manually adjusted according to the telescopic probe requirements of the product to be tested. During use, the product to be tested at the first station is placed on the power carrier plate 31 of the first test platform 3, so that the product is positioned in conjunction with two positioning blocks 32 located near the front edge and two limiting blocks 33 located near the rear edge on the upper part of the power carrier plate 31. The groove 34 and the inclined groove 35 provide clearance and guidance for the bottom structure or pins of the product. The product at the second station is also placed on the power carrier plate 31 of the second test platform 5 and fixed by the corresponding positioning blocks and limiting blocks. The test plate 71 of the test assembly 7 is fitted onto two sets of guide rods 62 at its four corners. The straightness and guiding accuracy of the test plate during sliding are ensured by the guide assembly 6 located at the other end of the base plate 2. The telescopic probe module 72 is installed on the test plate 71, and its probe end corresponds to the product port position of the first test stage 3 and the second test stage 5. The operator holds the handle 42 on the pull rod assembly 4. The bottom end of the handle is hinged to one end of the support base 41, and the middle part is hinged to two parallel connecting pieces 43. The other end of the connecting pieces is hinged to the connecting rod 45. The connecting rod passes through the hollow guide sleeve 44 fixed to the support base and slides in cooperation with its inner hole. When the handle 42 is pulled, the two connecting pieces 43 drive the connecting rod 45 to slide horizontally in the guide sleeve 44, thereby pushing the test plate 71 to move axially along the guide rod 62, so that the telescopic probe module 72 contacts the product test port of the corresponding station. During the contact process, the front connecting part 721, spring 722, and rear connecting part 723 of the telescopic probe module 72 work together. When there is a gap between the first limiting part 724 and the second limiting part 725, the spring 722 is in a compressed state to absorb displacement. When the two are in contact, the spring 722 is in an extended state to limit further displacement of the front connecting part 721 and prevent overvoltage damage. The rear connecting part 723 of the probe module is connected to the detection port of the current and voltage tester 1 through the wire 8. The tester outputs current or voltage signals and collects feedback data. After the test is completed, the operator pushes the handle 42 in the opposite direction, causing the connecting rod 45 to retract within the guide sleeve 44, which drives the test plate 71 back to the initial position along the guide rod 62. The probe is then separated from the product, and the tested product can be removed for the next round of testing.

[0027] The above description is only the optimal solution embodiment of this utility model and is not intended to limit this utility model. Various modifications or substitutions made by those skilled in the art to this utility model without departing from the essence and protection scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A dual-station automated testing fixture for power distribution networks, characterized in that: The test assembly includes a current and voltage tester (1), a substrate (2), a first test stage (3) fixedly mounted on one side of the substrate (2), a pull rod assembly (4) disposed on the substrate (2) and on the same side as the first test stage (3), a second test stage (5) disposed on the substrate (2) and located above the pull rod assembly (4), a guide assembly (6), and a test assembly (7). The guide assembly (6) includes a limiting plate (61) and a guide rod (62) connected between the limiting plate (61). The test assembly (7) includes a test plate (71) and a telescopic probe module (72) mounted on the test plate (71). The four corners of the test plate (71) slide against the guide rod (62). The output end of the pull rod assembly (4) is fixedly connected to the test plate (71) so that the test plate (71) slides along the guide rod (62). The position of the telescopic probe module (72) corresponds to the first test stage (3) and the second test stage (5), respectively.

2. The dual-station automated testing fixture for power distribution networks according to claim 1, characterized in that: The telescopic probe module (72) includes a front connecting part (721), a spring (722) and a rear connecting part (723). The front connecting part (721) is provided with a first limiting part (724) and a second limiting part (725). When there is a gap between the first limiting part (724) and the second limiting part (725), the spring (722) is in a compressed state. When the first limiting part (724) and the second limiting part (725) are in contact with each other, the spring (722) is in a stretched state and restricts the displacement of the front connecting part (721).

3. The dual-station automated testing fixture for power distribution networks according to claim 1, characterized in that: The pull rod assembly (4) includes a support base (41) fixed on the base plate (2), a handle (42), a pair of connecting pieces (43), a guide sleeve (44), and a connecting rod (45). One end of the support base (41) is hinged to the bottom of the handle (42), and the other end is fixedly provided with a guide sleeve (44). The guide sleeve (44) is a hollow sleeve. The connecting rod (45) passes through and slides in cooperation with the inner hole of the guide sleeve (44). The two connecting pieces (43) are respectively arranged parallel to the connecting rod. On the left and right sides of (45), one end of the connecting piece (43) is hinged to the middle of the handle (42), and the other end is hinged to the connecting rod (45). The other end of the connecting rod (45) hinged to the connecting piece is fixedly connected to the test plate (71). When the handle (42) is pulled relative to the support base (41), the two connecting pieces (43) drive the connecting rod (45) to slide horizontally in the guide sleeve (44), thereby driving the test plate (71) to slide along the axial direction of the guide rod (62).

4. The dual-station automated testing fixture for power distribution networks according to claim 1, characterized in that: The first test bench (3) and the second test bench (5) both include a power supply carrier board (31), two positioning blocks (32) located on the upper part of the power supply carrier board (31) near the front edge, and two limiting blocks (33) located on the upper part of the power supply carrier board (31) near the rear edge.

5. The dual-station automated testing fixture for power distribution networks according to claim 4, characterized in that: The power carrier board (31) is provided with a groove (34) located between two positioning blocks (32), and the upper surface of the positioning block (32) is provided with a slanted groove (35), which is set towards the center of the power carrier board (31).

6. The dual-station automated testing fixture for power distribution networks according to claim 1, characterized in that: The guide assembly (6) includes two sets of limiting plates (61). The two sets of limiting plates (61) are respectively fixed on the base plate (2) and located at both ends of the sliding path of the test assembly (7). Two guide rods (62) are installed in parallel between each set of limiting plates (61). The two sets of guide rods (62) are parallel to each other and extend along the sliding direction of the test assembly (7). The length of the guide rods (62) is a fixed length to maintain the straightness and guiding accuracy of the test assembly (7) during the sliding process and avoid the deviation of the test plate (71) due to the change of the length of the guide rod.

7. The dual-station automated testing fixture for power distribution networks according to claim 2, characterized in that: The rear connection part (723) of the telescopic probe module (72) is connected to the detection port of the current and voltage tester (1) via a wire (8).

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