A testing device for transformer production

Abstract

A kind of testing device for transformer production, it is related to transformer production technical field, including rack, PLC controller is installed on the side of the rack, transformer conveying unit is installed on the inner side of rack, lifting mechanism is installed on the top of the rack, several connecting frames are rotatably connected on the lifting part of lifting mechanism by rotating shaft, and test module is detachably connected to connecting frame by clamping mechanism, driving mechanism for driving rotating shaft rotation is installed on the lifting part of lifting mechanism, the testing device for transformer production can complete multiple test items in single station, greatly improve test efficiency, it reduces human participation, saves time and effort, it does not need to replace module or transfer transformer multiple times, to facilitate to meet mass production demand.

Description

Technical Field

[0001] This utility model relates to the field of transformer manufacturing technology, and in particular to a testing device for transformer manufacturing. Background Technology

[0002] In the large-scale production of transformers, electrical performance testing is a crucial step in ensuring product quality. Existing testing equipment generally suffers from the following problems: Dispersed layout: The test modules are mostly fixed to the ground or on independent brackets, requiring manual labor to repeatedly move the transformer between the conveyor line and the test position, which is labor-intensive. Low testing efficiency: A single device can only carry 1-2 test modules. To complete multi-parameter testing, modules or transformers need to be replaced multiple times. Testing a single product takes more than 20 minutes, which cannot meet the needs of mass production. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a testing device for transformer production. This device can complete multiple test items at a single workstation, which greatly improves testing efficiency. It reduces human intervention, saves time and effort, and eliminates the need for multiple module replacements or transformer transfers, making it easier to meet mass production requirements. This device can effectively solve the problems in the background art.

[0004] To achieve the aforementioned objective, this utility model adopts the following technical solution: A testing device for transformer production includes a frame, a PLC controller mounted on the side of the frame, a transformer conveying unit mounted on the inner side of the frame, a lifting mechanism mounted on the top of the frame, a plurality of connecting frames rotatably connected to the lifting part of the lifting mechanism via a rotating shaft, and a test module detachably connected to the connecting frames via a snap-fit ​​mechanism, a drive mechanism for driving the rotating shaft to rotate is mounted on the lifting part of the lifting mechanism, and the PLC controller is electrically connected to an external power supply.

[0005] Furthermore, the transformer conveying unit includes a chain plate conveyor and positioning grooves. The chain plate conveyor is installed on the inner side of the frame, and the positioning grooves are evenly arranged on the conveying chain plates of the chain plate conveyor. The chain plate conveyor is electrically connected to a PLC controller.

[0006] Furthermore, the transformer conveying unit also includes a rubber pad, which is adhered to the inner surface of the positioning groove.

[0007] Furthermore, the lifting mechanism includes an electric push rod and a lifting seat. The electric push rod is installed on the top of the frame, and the lifting seat is fixed to the telescopic end of the electric push rod. The connecting frame is rotatably connected to the lifting seat through a rotating shaft, and the electric push rod is electrically connected to a PLC controller.

[0008] Furthermore, the drive mechanism includes a servo motor, a worm gear, and a worm wheel. The worm gear is rotatably mounted on the support of the lifting seat. The servo motor is mounted on the side of the support of the lifting seat. The output shaft of the servo motor is fixedly connected to the end of the worm gear. The worm wheel is fixed to the end of the rotating shaft. The worm gear meshes with the worm wheel. The servo motor is electrically connected to a PLC controller.

[0009] Furthermore, the locking mechanism includes a positioning groove and a fastener. The positioning groove is formed on the connecting frame, and the fastener is fixed on the housing of the test module. The fastener and the positioning groove are engaged and locked together.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This transformer production testing device has the following advantages: 1. By setting up multiple rotatable test modules and coordinating the lifting and driving mechanisms, different test modules can be sequentially moved to the top of the transformer for testing, realizing the completion of multiple tests at a single workstation, greatly improving testing efficiency. It reduces manpower involvement, saves time and effort, and eliminates the need for multiple module replacements or transformer transfers, making it easier to meet mass production requirements.

[0011] 2. The test module is detachably connected to the connecting frame through a snap-fit ​​mechanism. When it is necessary to change the test item or maintain a certain module, the operation is simple and quick, enabling the device to flexibly adapt to the testing needs of different types of transformers. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is an enlarged structural diagram of point A in this utility model; Figure 3 This is a three-dimensional cross-sectional structural diagram of the present invention; Figure 4 This is an enlarged structural diagram of section B of this utility model.

[0013] In the diagram: 1-Frame, 2-PLC controller, 3-Transformer conveyor unit, 31-Chain plate conveyor, 32-Positioning groove, 33-Rubber pad, 4-Lifting mechanism, 41-Electric push rod, 42-Lifting seat, 5-Drive mechanism, 51-Servo motor, 52-Worm gear, 53-Worm wheel, 6-Snap-fit ​​mechanism, 61-Positioning groove, 62-Fastener, 7-Test module, 8-Rotating shaft, 9-Connecting frame. Detailed Implementation

[0014] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0015] Please see Figure 1-4 This embodiment provides a technical solution: a testing device for transformer production, including a frame 1, a PLC controller 2 mounted on the side of the frame 1, a transformer conveying unit 3 mounted on the inner side of the frame 1, a lifting mechanism 4 mounted on the top of the frame 1, a plurality of connecting frames 9 rotatably connected to the lifting part of the lifting mechanism 4 via a rotating shaft 8, and a test module 7 detachably connected to the connecting frames 9 via a snap-fit ​​mechanism 6, a drive mechanism 5 for driving the rotating shaft 8 to rotate is mounted on the lifting part of the lifting mechanism 4, and the PLC controller 2 is electrically connected to an external power supply.

[0016] By setting up multiple rotatable test modules 7 and coordinating the lifting mechanism 4 with the drive mechanism 5, different test modules 7 can be sequentially moved to the top of the transformer for testing, realizing the completion of multiple tests at a single workstation, greatly improving testing efficiency, reducing manpower involvement, and saving time and effort.

[0017] The transformer conveying unit 3 includes a chain conveyor 31 and a positioning groove 32. The chain conveyor 31 is installed inside the frame 1. The positioning grooves 32 are evenly distributed on the conveyor chain of the chain conveyor 31. The chain conveyor 31 is electrically connected to the PLC controller 2. The operator places the transformer into the positioning groove 32 at the starting end of the chain conveyor 31. The rubber pad 33 fits against the bottom and side wall of the transformer to prevent displacement. Pressing the "Start Conveying" button on the PLC touch screen starts the chain conveyor 31 at a speed of 1 m / min. When the positioning groove 32 reaches below the lifting mechanism 4, it is detected by a photoelectric sensor, and the conveyor stops.

[0018] The transformer conveying unit 3 also includes a rubber pad 33, which is attached to the inner surface of the positioning groove 32. The rubber pad 33 can increase the friction between the transformer and the groove, prevent the transformer from shifting during the conveying process, and avoid the metal groove from scratching the paint surface of the transformer shell.

[0019] The lifting mechanism 4 includes an electric push rod 41 and a lifting seat 42. The electric push rod 41 is installed on the top of the frame 1, and the lifting seat 42 is fixed to the telescopic end of the electric push rod 41. The connecting frame 9 is rotatably connected to the lifting seat 42 through the rotating shaft 8. The electric push rod 41 is electrically connected to the PLC controller 2. The PLC controller 2 triggers the electric push rod 41 to start, and the lifting seat 42 descends to 50mm from the top of the transformer. Then the lifting seat 42 continues to descend, aligning the wiring terminals of the test module 7 with the high-voltage side terminals of the transformer. The lifting stops. It can form a structure in which "one lifting seat 42 drives multiple test modules 7 to lift and rotate synchronously and independently". It can simultaneously carry multiple test modules 7 such as withstand voltage, insulation resistance, and turns ratio to realize continuous testing of multiple parameters.

[0020] The drive mechanism 5 includes a servo motor 51, a worm gear 52, and a worm wheel 53. The worm gear 52 is rotatably mounted on the support of the lifting seat 42. The servo motor 51 is mounted on the side of the support of the lifting seat 42. The output shaft of the servo motor 51 is fixedly connected to the end of the worm gear 52. The worm wheel 53 is fixed to the end of the rotating shaft 8, and the worm gear 52 meshes with the worm wheel 53. The servo motor 51 is electrically connected to the PLC controller 2. When the servo motor 51 starts, its output shaft drives the worm gear 52 to rotate, and the worm gear 52 meshes with the worm wheel 53. The rotating shaft 8 drives the connecting frame 9 and the test module 7 to rotate, and the terminals of the withstand voltage test module are connected to the transformer terminals. The PLC controls the withstand voltage test module to output 25kV AC voltage for 60 seconds. After the withstand voltage test is completed, the servo motor 51 drives the rotating shaft 8 to rotate 120°, switching to the insulation resistance test module, and repeating the connection and test process. Finally, it switches to the turns ratio test module to complete the turns ratio error test. It can simultaneously mount multiple test modules 7 without having to change modules or transfer transformers multiple times, which is convenient for meeting mass production requirements.

[0021] The snap-fit ​​mechanism 6 includes a positioning groove 61 and a fastener 62. The positioning groove 61 is formed on the connecting frame 9, and the fastener 62 is fixed on the housing of the test module 7. The fastener 62 and the positioning groove 61 engage in a snap-fit ​​manner. The fastener 62 is a Southco M1-30 type quick snap fastener. The fastener 62 includes a fixing seat, a spring snap head, and an unlocking button. The fixing seat is connected to the housing of the test module 7 by two M4 hex socket screws. The spring snap head is made of nylon. When disassembling, pressing the unlocking button will retract the snap head, and the test module 7 can be removed from the connecting frame 9. The disassembly and assembly time for a single person is ≤20 seconds, which greatly improves the efficiency of maintenance.

[0022] The working principle of the transformer production testing device provided by this utility model is as follows: The operator places the transformer into the positioning groove 32 at the starting end of the chain conveyor 31. The rubber pad 33 is attached to the bottom and side wall of the transformer to prevent displacement. Press the "Start Conveyor" button on the PLC touch screen, and the chain conveyor 31 runs at a speed of 1m / min. When the positioning groove 32 reaches below the lifting mechanism 4, it is detected by the photoelectric sensor, and the conveyor stops. The PLC controller 2 triggers the electric push rod 41 to start, and the lifting seat 42 descends to 50mm from the top of the transformer. Then the lifting seat 42 continues to descend, aligning the wiring terminals of the test module 7 with the high-voltage side terminals of the transformer, and the lifting stops. Servo motor 51 starts, and its output shaft drives worm gear 52 to rotate. Worm gear 52 meshes with worm wheel 53, which in turn drives connecting bracket 9 and test module 7 to rotate via rotating shaft 8. The terminals of the withstand voltage test module are connected to the transformer terminals. The PLC controls the withstand voltage test module to output 25kV AC voltage for 60 seconds. After the withstand voltage test is completed, servo motor 51 drives rotating shaft 8 to rotate 120°, switching to insulation resistance test module and repeating the connection and test process. Finally, it switches to transformation ratio test module to complete the transformation ratio error test. After all tests are completed, the electric push rod 41 drives the lifting seat 42 to rise to the initial position, the chain plate conveyor 31 starts, and transports the tested transformer to the end unloading area; at the same time, the next empty positioning slot 32 is transported to the bottom of the lifting mechanism 4 to enter the next round of testing.

[0023] Fastener 62 uses Southco M1-30 quick-release clips. Fastener 62 includes a mounting base, a spring clip head, and an unlocking button. The mounting base is connected to the housing of the test module 7 by two M4 hex socket screws. The spring clip head is made of nylon. When disassembling, press the unlocking button to retract the clip head, and the test module 7 can be removed from the connecting bracket 9. The disassembly and assembly time for a single person is ≤20 seconds, which greatly improves the efficiency of maintenance.

[0024] It is worth noting that the components disclosed in the above embodiments are all general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. The PLC controller 2, chain conveyor 31, electric push rod 41 and servo motor 51 are all products currently on the market. Their structures and principles are public knowledge. This solution only describes their role in this solution and the technical effects they are intended to produce.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. For example, a rotary connection can refer to a rotary connection through a bearing.

[0026] The parts of this utility model not described in detail are prior art. Although this utility model has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. However, those skilled in the art should understand that various changes in form and detail can be made to this utility model without departing from the spirit and scope of this utility model as defined by the appended claims, and all such changes shall be within the protection scope of this utility model.

Claims

1. A testing device for transformer production, comprising a frame (1), characterized in that: A PLC controller (2) is installed on the side of the frame (1), a transformer conveying unit (3) is installed on the inside of the frame (1), a lifting mechanism (4) is installed on the top of the frame (1), a number of connecting frames (9) are rotatably connected to the lifting part of the lifting mechanism (4) via a rotating shaft (8), and a test module (7) is detachably connected to the connecting frame (9) via a snap-fit ​​mechanism (6). A drive mechanism (5) for driving the rotating shaft (8) is installed on the lifting part of the lifting mechanism (4), and the PLC controller (2) is electrically connected to an external power supply.

2. The testing device for transformer production according to claim 1, characterized in that: The transformer conveying unit (3) includes a chain plate conveyor (31) and a positioning groove (32). The chain plate conveyor (31) is installed on the inner side of the frame (1). The positioning groove (32) is evenly arranged on the conveying chain plate of the chain plate conveyor (31). The chain plate conveyor (31) is electrically connected to the PLC controller (2).

3. The testing device for transformer production according to claim 2, characterized in that: The transformer conveying unit (3) also includes a rubber pad (33), which is attached to the inner surface of the positioning groove (32).

4. The testing device for transformer production according to claim 1, characterized in that: The lifting mechanism (4) includes an electric push rod (41) and a lifting seat (42). The electric push rod (41) is installed on the top of the frame (1). The lifting seat (42) is fixed to the telescopic end of the electric push rod (41). The connecting frame (9) is rotatably connected to the lifting seat (42) through a rotating shaft (8). The electric push rod (41) is electrically connected to the PLC controller (2).

5. A testing device for transformer production according to claim 1 or 4, characterized in that: The drive mechanism (5) includes a servo motor (51), a worm (52) and a worm wheel (53). The worm (52) is rotatably mounted on the support of the lifting seat (42). The servo motor (51) is mounted on the side of the support of the lifting seat (42). The output shaft of the servo motor (51) is fixedly connected to the end of the worm (52). The worm wheel (53) is fixed to the end of the rotating shaft (8). The worm (52) meshes with the worm wheel (53). The servo motor (51) is electrically connected to the PLC controller (2).

6. The testing device for transformer production according to claim 1, characterized in that: The snap-fit ​​mechanism (6) includes a positioning groove (61) and a fastener (62). The positioning groove (61) is opened on the connecting frame (9), and the fastener (62) is fixed on the housing of the test module (7). The fastener (62) and the positioning groove (61) are engaged in a snap-fit.

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