Multifunctional automatic test equipment for transformer

Abstract

The utility model discloses a multifunctional automatic test device for a transformer. The multifunctional automatic test device comprises a cabinet; the workbench is mounted on the case; the positioning jig is mounted in the middle of the workbench and is used for placing a transformer to be tested; the probe plates are arranged on the two sides of the positioning jig respectively, and a plurality of positioning probes are arranged on the probe plates; the material clamping cylinders are respectively arranged on the outer sides of the probe plates, and the output ends of the material clamping cylinders are connected with the probe plates; the output end of at least one clamping air cylinder is also provided with a DCR test probe which is used for carrying out a DCR test on the transformer; the conversion air cylinder is installed on one side of the workbench, and a withstand voltage test probe is arranged at the output end of the conversion air cylinder and used for carrying out withstand voltage test on the transformer; and the PLC is used for controlling the operation of the whole equipment. According to the utility model, the DCR test and the withstand voltage test are integrated, the labor cost can be effectively reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformer testing equipment, and specifically relates to a multifunctional automatic testing equipment for transformers. Background Art

[0002] In the traditional production and testing process of transformers, the efficiency of the testing work and cost control have always been the key concerns. Especially in the process of direct current resistance (DCR) testing and withstand voltage testing of transformers, usually two different testing instruments are used to measure separately. This traditional testing method has the following several significant deficiencies: First, each test requires a separate instrument, so the factory needs to invest more in equipment purchase costs; Second, since the operation processes of the two testing devices are independent, usually at least two operators are required to work simultaneously, which undoubtedly increases the labor cost and reduces the operation efficiency; Third, this decentralized testing method leads to an extended testing cycle, which restricts the improvement of production efficiency.

[0003] To solve these problems, the industrial community urgently needs a testing equipment with high integration and automation to improve production efficiency and reduce costs. The ideal equipment should be able to integrate multiple testing functions and realize a testing process with a single device and fewer operators. This can not only shorten the overall testing cycle of the product but also significantly reduce the production defect rate caused by operation errors.

[0004] In view of the above background, this application proposes a multifunctional automatic testing equipment for transformers, which integrates DCR testing and withstand voltage testing, and can effectively reduce labor costs and improve production efficiency. Summary of the Utility Model

[0005] The purpose of the utility model is: aiming at the deficiencies of the prior art, to provide a multifunctional automatic testing equipment for transformers, which integrates DCR testing and withstand voltage testing, and can effectively reduce labor costs and improve production efficiency.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A multifunctional automatic testing equipment for transformers, comprising:

[0008] A chassis;

[0009] A workbench, installed on the chassis;

[0010] A positioning fixture, installed in the middle of the workbench for placing the transformer to be tested;

[0011] Probe boards, respectively arranged on both sides of the positioning fixture, and a number of positioning probes are arranged on the probe boards;

[0012] The material clamping cylinders are respectively arranged on the outer sides of the probe board, and the output ends of the material clamping cylinders are connected to the probe board; and DCR test probes are further arranged at the output ends of at least one of the material clamping cylinders for performing DCR tests on transformers.

[0013] The conversion cylinder is installed on one side of the workbench, and a withstand voltage test probe is arranged at the output end of the conversion cylinder for performing withstand voltage tests on transformers.

[0014] The PLC controller is used to control the operation of the entire device, including receiving feedback signals and controlling the actions of the material clamping cylinders and the conversion cylinder according to these signals.

[0015] Preferably, a card slot for placing the transformer to be tested is arranged in the middle of the positioning fixture.

[0016] Preferably, a user operation interface is arranged on the front of the chassis, and a number of control buttons are arranged on the user operation interface for operating the start, stop, and test of the device.

[0017] Preferably, a material transfer mechanism is further included for moving the transformer into or out of the positioning fixture.

[0018] Preferably, the material transfer mechanism includes a driving mechanism and a mechanical gripper connected to the output end of the driving mechanism.

[0019] Compared with the prior art, the present utility model has at least the following beneficial effects: A multifunctional automatic test device for transformers of the present utility model includes: a chassis; a workbench installed on the chassis; a positioning fixture installed in the middle of the workbench for placing the transformer to be tested; probe boards respectively arranged on both sides of the positioning fixture, and a number of positioning probes are arranged on the probe boards; material clamping cylinders respectively arranged on the outer sides of the probe boards, and the output ends of the material clamping cylinders are connected to the probe boards; and DCR test probes are further arranged at the output ends of at least one of the material clamping cylinders for performing DCR tests on transformers; a conversion cylinder is installed on one side of the workbench, and a withstand voltage test probe is arranged at the output end of the conversion cylinder for performing withstand voltage tests on transformers; a PLC controller is used to control the operation of the entire device, including receiving feedback signals and controlling the actions of the material clamping cylinders and the conversion cylinder according to these signals. The device of the present utility model integrates DCR tests and withstand voltage tests on the same machine, avoiding the traditional method of using two different devices for separate tests; this integration can significantly improve the efficiency of the test process, reduce the space occupied by the device, and at the same time reduce the equipment investment cost. The operation of this device is controlled by a PLC controller, which can automatically receive feedback signals and control the actions of the material clamping cylinders and the conversion cylinder according to the signals; this highly automated control not only improves the accuracy and repeatability of the test, but also reduces the work intensity of the operator and reduces the dependence on professional operation skills. Description of the Drawings

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model.

[0021] In the figure: 1, chassis; 2, workbench; 3, positioning fixture; 4, probe board; 5, clamping cylinder; 6, positioning probe; 7, DCR test probe; 8, conversion cylinder; 9, withstand voltage test probe; 10, transformer. Detailed Embodiment

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0023] Please refer to the attached Figure 1 , a multifunctional automatic test device for a transformer provided by the present utility model, includes:

[0024] Chassis 1;

[0025] Workbench 2, installed on the chassis 1;

[0026] Positioning fixture 3, installed in the middle of the workbench 2, for placing the transformer 10 to be tested;

[0027] Probe board 4, respectively arranged on both sides of the positioning fixture 3, and a plurality of positioning probes 6 are arranged on the probe board 4;

[0028] Clamping cylinders 5, respectively arranged outside the probe board 4, and the output ends of the clamping cylinders 5 are connected to the probe board 4; and the output end of at least one clamping cylinder 5 is also provided with a DCR test probe 7 for performing DCR tests on the transformer 10;

[0029] Conversion cylinder 8, installed on one side of the workbench 2, and the output end of the conversion cylinder 8 is provided with a withstand voltage test probe 9 for performing withstand voltage tests on the transformer 10;

[0030] PLC controller, used to control the operation of the entire device, including receiving feedback signals and controlling the actions of the clamping cylinder 5 and the conversion cylinder 8 according to these signals.

[0031] The multifunctional automatic test device for the transformer 10 provided by the present utility model effectively improves the test efficiency, reduces the operation complexity and manpower requirements; this device not only simplifies the operation steps, but also saves the device space and cost by integrating multiple test functions into one.

[0032] In one embodiment according to the present application, a card slot for placing the transformer 10 to be tested is provided in the middle of the positioning fixture 3. It can ensure the precise and stable position of the transformer 10 during the test, thereby improving the accuracy and consistency of the test.

[0033] In one embodiment according to the present application, a user operation interface is provided on the front of the chassis 1, and the user operation interface is provided with a plurality of control buttons for operating the start, stop, and test of the device. This design of the human-machine interface makes the operation more intuitive and convenient, helps the operator master the use method of the device more quickly, and is also convenient for fault diagnosis and device maintenance.

[0034] In one embodiment according to the present application, a material transfer mechanism is further included for moving the transformer 10 into or out of the positioning fixture 3. It can automatically move the transformer 10 into or out of the positioning fixture 3, which not only further reduces the need for manual operation but also speeds up the process of the entire test.

[0035] In one embodiment according to the present application, the material transfer mechanism includes a driving mechanism and a mechanical gripper connected to the output end of the driving mechanism. The use of the mechanical gripper makes the material transfer process more stable and safe, reducing the risk of product damage caused by manual handling.

[0036] Among them, the working process of the present utility model is as follows:

[0037] 1) Placing the transformer 10: Before starting the test, the operator first manually places the transformer 10 to be tested into the positioning fixture 3 in the center of the workbench 2;

[0038] 2) Starting the test: The test process is initialized by touching the start button on the user operation interface; this operation triggers the PLC controller, and the PLC controller automatically controls the subsequent operations of the device according to the preset program;

[0039] 3) DCR test: The PLC controller instructs the clamping cylinder 5 to extend, so that the DCR test probe 7 contacts the corresponding test points of the transformer 10 to perform a DCR (direct current resistance) test on the transformer 10;

[0040] 4) Withstand voltage test: After the DCR test is completed, the PLC controller instructs the conversion cylinder 8 to extend; the withstand voltage test probe 9 of the conversion cylinder 8 moves towards the transformer 10 to perform a withstand voltage test;

[0041] 5) Ending the test and taking out the transformer: After the withstand voltage test is completed, the PLC controller instructs the conversion cylinder 8 and the clamping cylinder 5 to retract in sequence, takes out the transformer 10, and completes the DCR test and the withstand voltage test.

[0042] It should be noted that the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art, and will not be elaborated here.

[0043] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional automatic testing device for transformers, characterized in that: include: Chassis; A workbench, mounted on the chassis; The positioning fixture is installed in the middle of the workbench and is used to place the transformer to be tested; Probe plates are respectively arranged on both sides of the positioning fixture, and a plurality of positioning probes are arranged on the probe plates; The clamping cylinders are respectively arranged on the outside of the probe plate, and the output ends of the clamping cylinders are connected to the probe plate; and the output end of at least one clamping cylinder is also provided with a DCR test probe for performing a DCR test of the transformer; A conversion cylinder is installed on one side of the workbench, and a withstand voltage test probe is provided at the output end of the conversion cylinder for conducting a withstand voltage test of the transformer; The PLC controller is used to control the operation of the entire equipment, including receiving feedback signals and controlling the actions of the clamping cylinder and the conversion cylinder based on these signals.

2. The multifunctional automatic testing equipment for transformer according to claim 1, characterized in that: A slot for placing the transformer to be tested is provided in the middle of the positioning fixture.

3. The multifunctional automatic testing equipment for transformer according to claim 1, characterized in that: The front of the chassis is provided with a user operation interface, and the user operation interface is provided with a plurality of control buttons for operating the start, stop and test of the equipment.

4. The multifunctional automatic testing equipment for transformer according to claim 1, characterized in that: It also includes a material moving mechanism for moving the transformer into or out of the positioning fixture.

5. The multifunctional automatic testing equipment for transformer according to claim 4, characterized in that: The material moving mechanism comprises a driving mechanism and a mechanical clamp connected to the output end of the driving mechanism.

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