Automatic detection machine for EI mutual inductor

Abstract

The utility model provides an automatic detection machine for an EI mutual inductor, which comprises a rack, a detection mechanism and a to-be-detected carrier, the rack is provided with a slideway assembly, the slideway assembly comprises a concentric-square-shaped slideway, four corners of the concentric-square-shaped slideway are respectively provided with a push plate and a material pushing cylinder, the to-be-detected EI mutual inductor is placed on the to-be-detected carrier, and the to-be-detected EI mutual inductor is placed on the detection mechanism. The to-be-detected carrier is pushed to move from left to right along with pushing of the material pushing air cylinder so that the detection mechanism can detect the to-be-detected carrier in sequence, and the detection mechanism comprises a detection component, a carrying component and a flow belt component. According to the utility model, the EI mutual inductor is automatically clamped manually and subsequently pushed to the detection position of the detection mechanism, manual result judgment is not needed, detection parts automatically correspond to test, verification and compensation, the EI mutual inductor can be tested by the automatic detection machine, the batch test efficiency of the EI mutual inductor is greatly improved, the production requirements are met, and the labor of operators is effectively relieved.

Description

Technical Field

[0001] The utility model belongs to the field of electronic testing, and in particular relates to an automatic testing machine for an EI mutual inductor. Background Art

[0002] Since the EI transformer has lead wires and is at the top, the testing requirements are high, and the testing usually needs to be done manually individually, resulting in a large amount of manpower spent on the testing process, low efficiency in batch testing, inability to implement automatic assembly line testing, and failure to meet production requirements.

[0003] Therefore, it is necessary to provide an automatic detection machine for EI mutual inductor to solve this problem. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an automatic testing machine for EI mutual inductors, which can automatically clamp the EI mutual inductors manually and then push them to the testing position of the testing mechanism without manual judgment of the results. The three testing components can automatically perform corresponding test verification and compensation, thereby realizing the testing of the EI mutual inductors by the automatic testing machine, greatly accelerating the batch testing efficiency of the EI mutual inductors, meeting production needs, and effectively alleviating the labor of operators.

[0005] In order to solve the above technical problems, the embodiment of the utility model provides an automatic detection machine for EI mutual inductor, including a frame, a detection mechanism and a carrier to be tested, the frame is provided with a slideway assembly, the slideway assembly includes a return slideway, the detection mechanism is arranged inside the return slideway, and a push cylinder is arranged at the four corners of the return slideway, and a push plate is arranged on the output shaft of the push cylinder; a plurality of carriers to be tested are arranged, and a plurality of carriers to be tested are evenly arranged on the return slideway, and an EI mutual inductor to be tested is placed on the carrier to be tested, and as the push cylinder drives the push plate to push, the carrier to be tested is pushed to move in sequence along the return slideway in a cycle for detection by the detection mechanism;

[0006] The detection mechanism includes a detection component, a transport component and a water belt component. The detection component is arranged on the inner side of the circular slideway, and includes a plurality of probes corresponding to the pins of the EI mutual inductor to be tested, a detection plate for fixing the probes, and a test cylinder for driving the detection plate to rise and fall;

[0007] The transport component includes a transport guide frame and a transport slider. The transport guide frame is mounted above the return slide and the water belt component. A support seat is provided below the transport guide frame. The transport slider slides left and right along the guide rail on the transport guide frame through a belt motor. The transport slider is connected to an upper and lower cylinder. The piston ends of the upper and lower cylinders are connected to a clamping cylinder. The clamping cylinder is equipped with a material clamping finger. The upper and lower cylinders control the material clamping finger to move up and down.

[0008] The water flow belt component is arranged on the outside of the slideway assembly and below the conveying component, and the water flow belt part of the water flow belt component is driven by a driving motor.

[0009] Wherein, the detection component is arranged above the carrier to be tested, and the detection component moves up and down above the carrier to be tested through a test cylinder.

[0010] Among them, the detection mechanism is provided with three detection components, which are electrically connected to the power frequency withstand voltage instrument, the induction withstand voltage instrument, and the precision testing instrument respectively, and the detection components corresponding to the power frequency withstand voltage instrument, the induction withstand voltage instrument, and the precision testing instrument are distributed in sequence from right to left along the circular slide.

[0011] Among them, a proximity switch is provided on the side where each push plate moves forward, and the sensing surface of the proximity switch is opposite to the forward direction of any of the circular slideways. The proximity switch is used to sense whether there is a carrier to be tested on the proximity switch, so that the PLC controller controls the push cylinder to push the push plate to move the carrier to be tested forward.

[0012] Wherein, the slideway assembly is provided with detection optical fibers, which are respectively arranged on the side of the loading and clamping component, the detection component and the unloading and clamping component in the moving direction of the carrier to be tested.

[0013] The carrier to be tested includes a bottom plate, a positioning plate and a test clamp support seat are arranged on the bottom plate, a plurality of positioning pins for fixing the EI mutual inductor are arranged on the positioning plate, and a test clamp is arranged on the test clamp support seat.

[0014] Among them, the detection mechanism also includes a clamping component, which is divided into a loading clamping component and a unloading clamping component, which are respectively arranged on the right side of the detection component and the inner side of the conveying component, including a clamping cylinder and a clamping pull plate, and are fixed to the surface of the slide assembly.

[0015] The clamp opening component is arranged above the test clamp in the carrier to be tested, and the clamp opening pull plate is driven by the clamp opening cylinder to move to open and close the test clamp.

[0016] Among them, the water flow belt component includes a driving motor, a main transmission shaft coaxially arranged with the driving motor, a transmission belt shaft spaced apart from the same horizontal axis, and a transmission belt sleeved between the transmission belt shafts. The output shaft of the driving motor is connected to the main transmission shaft. Conveyor belt baffles are arranged on both sides of the conveyor belt. The conveyor belt baffles on both sides form a conveying channel, and the width of the conveying channel is greater than or equal to the size of the EI mutual inductor.

[0017] A PLC controller is also provided in the frame, and the PLC controller is connected to the push cylinder, the test cylinder, the upper and lower cylinders and the clamping cylinder signals, and is connected to the proximity switch and the detection optical fiber signal.

[0018] The beneficial effects of the above technical solution of the utility model are as follows:

[0019] The utility model is easy to operate. The staff only needs to place the EI mutual inductor on the carrier to be tested without manual detection, thereby simplifying the overall operation difficulty. The carrier to be tested is directly driven by the pushing cylinder to transport the EI mutual inductor to the detection component, and is detected by the detection component in turn. After the detection is completed, the driving conveying component is used, and the clamping claws are automatically classified according to the detection results. At the same time, unqualified products are automatically discharged by the conveying component and the water conveyor component, thereby realizing the automated testing of the EI mutual inductor, greatly accelerating the batch testing efficiency of the EI mutual inductor, meeting production needs, and effectively alleviating the labor of the operators, thereby improving the overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the structural front view of the utility model;

[0021] Figure 2 It is a left view of the structure of the utility model;

[0022] Figure 3 This is a rear view of the structure of the utility model;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 5 It is a schematic diagram of the slide assembly of the utility model;

[0025] Figure 6 It is a schematic diagram of the detection component of the utility model;

[0026] Figure 7 It is a schematic diagram of the water flow belt components of the utility model;

[0027] Figure 8 It is a schematic diagram of the handling component of the utility model;

[0028] Fig. 9 It is a schematic diagram of the vehicle to be tested of the utility model;

[0029] Fig.10 It is a schematic diagram of the clamping component of the utility model.

[0030] Description of reference numerals:

[0031] 1. Rack; 2. Carrier to be tested; 21. Bottom plate; 22. Positioning plate; 23. Test clamp support seat; 24. Positioning pin; 25. Test clamp; 3. Slideway assembly; 31. Return slideway; 32. Push plate; 33. Push cylinder; 34. Proximity switch; 35. Detection optical fiber; 36. Detection grating; 4. Detection component; 41. Probe; 42. Detection plate; 43. Test cylinder; 5. Transport component; 51. Transport guide frame; 52. Transport slider; 53. Support seat; 54. Belt motor; 55. Upper and lower cylinders; 56. Clamping cylinder; 57. Clamping finger; 6. Flow belt component; 61. Drive motor; 62. Main transmission shaft; 63. Transmission belt shaft; 64. Transmission belt; 65. Conveyor belt baffle; 7. Opening clamp component; 71. Opening clamp cylinder; 72. Opening clamp pull plate. DETAILED DESCRIPTION

[0032] In order to make the technical problems to be solved, technical solutions and advantages of the present invention more clear, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0033] like Figures 1 to 10 As shown, an embodiment of the utility model provides an automatic detection machine for an EI mutual inductor, comprising a frame 1, a detection mechanism and a carrier 2 to be tested, the frame is provided with a slide assembly 3, the slide assembly is provided with a return slide 31, and push plates 32 and pushing cylinders 33 are provided at the four corners of the return slide. The EI mutual inductor to be tested is placed on the carrier 2 to be tested and is arranged on the upper surface of the return slide 31. With the push of the pushing cylinder 33, the carrier 2 to be tested is pushed from right to left for sequential detection by the detection mechanism.

[0034] The detection mechanism includes a detection component 4, a conveying component 5 and a water flow belt component 6. The detection component 4 is arranged on the inner side of the return slide 31. Figure 6 As shown, it includes several probes 41 corresponding to the pins of the EI transformer to be tested, a detection plate 42 for fixing the probes, and a test cylinder 43 for driving the detection plate to rise and fall. The detection component 4 is arranged above the carrier 2 to be tested, and the detection component 4 moves up and down above the carrier 2 to be tested through the test cylinder. Among them, the detection mechanism is provided with three detection components, which are electrically connected to each test instrument through a transfer box, and each transfer box line is connected to the corresponding probe of the detection component, wherein each test instrument is a power frequency withstand voltage instrument, an induction withstand voltage instrument, and a precision test instrument, and the power frequency withstand voltage instrument, the induction withstand voltage instrument, and the precision test instrument are distributed from right to left, respectively, and are used to test the PT / CT, power frequency withstand voltage, and induction withstand voltage performance of the EI transformer.

[0035] like Figure 8As shown, the transport component 5 is vertically mounted between the circular slide 31 and the water flow belt component 6, and includes a transport guide frame 51 and a transport slider 52. A support seat 53 is provided under the transport guide frame 51. The transport slider 52 slides left and right along the guide rail on the transport guide frame 51 through a belt motor 54. The transport slider 52 is connected to an upper and lower cylinder 55. The piston ends of the upper and lower cylinders 55 are connected to a clamping cylinder 56. The clamping cylinder 56 is equipped with a clamping finger 57. The upper and lower cylinders 55 control the clamping finger 57 to move up and down.

[0036] like Figure 7 As shown, the water flow belt component 6 is arranged outside the circular slide 31 and below the transport component 5, and the water flow belt part of the water flow belt component 6 is driven by the driving motor 61 to rotate from left to right. The water flow belt component includes a driving motor 61, a main transmission shaft 62 coaxially arranged with the driving motor 61, a transmission belt shaft 63 spaced apart from the same horizontal axis, and a transmission belt 64 sleeved between the transmission belt shafts. The output shaft of the driving motor 61 is connected to the main transmission shaft 62. Conveyor belt baffles 65 are arranged on both sides of the conveyor belt. The conveyor belt baffles 65 on both sides form a conveying channel, and the width of the conveying channel is greater than or equal to the size of the EI mutual inductor.

[0037] A proximity switch 34 is provided next to the push plate 32, and the proximity switch 34 can sense whether there is a carrier 2 to be tested on the proximity switch. In this embodiment, four proximity switches are provided, which are respectively arranged at the four corners of the circular slide 31 and next to the push plate 32. When the carrier 2 to be tested is pushed to the four corners of the circular slide 31, the proximity switch 34 senses it, and the push cylinder 33 drives the push plate to push the carrier 2 to be tested to move to the left.

[0038] like Fig. 9 As shown, the carrier 2 to be tested includes a base plate 21 , on which a positioning plate 22 and a test clamp support seat 23 are arranged. The positioning plate 22 is provided with a plurality of positioning pins 24 for fixing the EI mutual inductor, and the test clamp support seat 23 is provided with a test clamp 25 .

[0039] The detection mechanism also includes a clamping component 7, which is divided into a loading clamping component and a unloading clamping component, which are respectively arranged on the right side of the detection component and the inner side of the conveying component. Fig.10 As shown, it includes a clamp opening cylinder 71 and a clamp opening plate 72, and is fixedly mounted on the surface of the slideway assembly 3. The clamp opening component 7 is arranged above the test clamp in the carrier 2 to be tested, and the clamp opening plate 72 is driven by the clamp opening cylinder 71 to move to open and close the test clamp 25. The loading and clamping component is also connected to a foot switch. When the staff inserts the two leads of the EI transformer to be tested into the corresponding test clamp 25, the clamp opening cylinder is controlled by stepping on the foot switch to close the test clamp.

[0040] The slideway assembly is provided with a detection optical fiber 35, which is respectively arranged on the side of the loading and unloading clamping component, the detection component and the unloading and unloading clamping component in the moving direction of the carrier to be tested. When the carrier to be tested 2 approaches the loading (or unloading) unloading clamping component 7, after the detection optical fiber 35 detects the carrier to be tested 2, the unloading cylinder 71 of the unloading clamping component 7 pushes the unloading pull plate 72 to open the test clamp 25 on the carrier to be tested 2, so that the staff can insert the two leads of the EI transformer to be tested into the corresponding test clamp 25; when the carrier to be tested 2 approaches the detection component 4, after the detection optical fiber 35 detects the carrier to be tested 2, the test cylinder 43 drives the detection board 42, so that the probe 41 on the detection board contacts the EI transformer pin.

[0041] The slideway assembly is also provided with a detection grating 36, which is arranged on one side of the loading and unclamping component and is used to detect whether the staff is away from the safety range of the EI mutual inductor to be tested.

[0042] In this embodiment, a PLC controller (not shown in the figure) is also provided in the frame. The PLC controller is connected to the push cylinder, test cylinder, upper and lower cylinders and clamping cylinder signals, and is connected to the proximity switch and detection optical fiber signal, and is electrically connected to the transfer box, and is used to receive and read the data detected by the power frequency withstand voltage instrument, the induction withstand voltage instrument, and the precision testing instrument.

[0043] The workflow of the utility model is:

[0044] When the carrier to be tested approaches the loading and clamping component, after the detection optical fiber detects the carrier to be tested, the PLC controller controls the clamping cylinder of the clamping component to push the clamping pull plate to open the test clamp on the carrier to be tested. At this time, the staff fixes the EI transformer to be tested through the positioning pin on the carrier to be tested, and inserts the two leads of the EI transformer to be tested into the corresponding test clamp. The staff steps on the foot switch to close the test clamp. Then, when the staff leaves the detection range of the detection grating, the PLC controller controls the pushing cylinder to push the carrier to be tested again to the bottom of the detection component. When the carrier to be tested moves to the detection component, the detection optical fiber detects the carrier to be tested, and the test cylinder drives the detection board to descend, so that the probe on the detection board contacts the pin of the EI transformer. The PLC controls the power frequency withstand voltage instrument test connected to the first detection component, and resets after the test time and delay time controlled by the PLC are reached.

[0045] According to the test results, proceed to the next step according to the following framework principles:

[0046] The push cylinder pushes the carrier to be tested to the left, and the EI transformer to be tested reaches the bottom of the second detection component (inductive withstand voltage test instrument), and the PLC controller reads the test record of the first detection component. If the first detection component is tested OK, the test cylinder of the second detection component pushes the detection plate of the second detection component downward, so that the probe on the second detection component contacts the pin of the EI transformer to be tested, and the inter-turn insulation test is tested. After the test time and delay time are reached, it is reset; if the first detection component is tested NG, the push cylinder pushes the carrier to the left, and the product to be tested reaches the bottom of the second detection component (inductive withstand voltage test instrument), and the NG record of the first detection component is read in the PLC controller. The PLC controls the test cylinder of the second detection component not to act, that is, the second detection component is not tested, and then the PLC controller controls the push cylinder to continue to push the carrier to the left, and the EI transformer to be tested reaches the third detection component (precision test instrument). The NG record of the first detection component is read in the PLC controller, and the third detection component is not tested.

[0047] If the test of the second detection component is OK, the push cylinder will continue to push the carrier to be tested to the left, and the EI transformer to be tested will reach the third detection component (accuracy testing instrument), and the PLC controller will read the record of the second detection component. If the inter-turn insulation test of the second detection component is OK, the PLC controls the test cylinder of the third detection component to descend, so that the probe on the third detection component contacts the pin of the EI transformer to be tested, and the accuracy and phase difference tests are tested, and the test is reset after the test time and delay time are reached. If the inter-turn insulation test of the second detection component is NG, the PLC controller controls the push cylinder to push the carrier to the left, and the EI transformer to be tested reaches the third detection component. The NG record of the second detection component is read in the PLC controller, and the PLC controls the test cylinder of the third detection component not to move, that is, the third detection component is not tested.

[0048] After the EI transformer to be tested completes the above three tests, it continues to push the carrier to be tested to the bottom of the conveying component. When the carrier to be tested is pushed to the sensing range of the optical fiber sensor near the conveying component, the PLC controller receives the signal of the optical fiber sensor, and the PLC controls the cylinder of the unloading and clamping component to open the test clamp on the carrier to be tested, and the PLC controls the upper and lower cylinders in the conveying component to move downward, and at the same time controls the clamping claw cylinder to control the clamping fingers to clamp the EI transformer to be tested. The PLC controller reads the detection record of the EI transformer that has completed the detection when the component is detected, and the PLC controls the unloading belt motor in the conveying component, and drives the belt to move through the motor to distribute the material to the corresponding material channel.

[0049] Finally, the drive motor in the assembly line drives the transmission belt to transport the EI mutual inductor that has been tested to the material box.

[0050] The utility model solves the problems of the original manual wiring to connect instruments (power frequency withstand voltage instrument, induction withstand voltage instrument, precision testing instrument), which requires multiple wiring and disconnection, and then corresponding tests are carried out separately. In addition, the test data is manually recorded, and the compensation is manually verified, and the operation is more cumbersome, more complicated and inefficient. The utility model only requires one manual automatic clamping, and the subsequent flow moves to the detection component for detection. There is no need for manual judgment of the results. The three instruments automatically correspond to the test, verification and compensation. After the test is completed, the machine reads the data, records the test data, and automatically divides the materials according to the data.

[0051] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An automatic testing machine for EI mutual inductor, comprising a frame, a testing mechanism and a carrier to be tested, characterized in that: The frame is provided with a slide assembly, the slide assembly includes a return slide, the detection mechanism is arranged inside the return slide, and a push cylinder is arranged at the four corners of the return slide, and a push plate is arranged on the output shaft of the push cylinder; a plurality of carriers to be tested are arranged, and the plurality of carriers to be tested are evenly arranged on the return slide, and an EI mutual inductor to be tested is placed on the carrier to be tested, and as the push cylinder drives the push plate to push, the carrier to be tested is pushed to move in sequence along the return slide for detection by the detection mechanism; The detection mechanism includes a detection component, a transport component and a water belt component. The detection component is arranged on the inner side of the circular slideway, and includes a plurality of probes corresponding to the pins of the EI mutual inductor to be tested, a detection plate for fixing the probes, and a test cylinder for driving the detection plate to rise and fall; The transport component includes a transport guide frame and a transport slider. The transport guide frame is mounted above the return slide and the water belt component. A support seat is provided below the transport guide frame. The transport slider slides left and right along the guide rail on the transport guide frame through a belt motor. The transport slider is connected to an upper and lower cylinder. The piston ends of the upper and lower cylinders are connected to a clamping cylinder. The clamping cylinder is equipped with a material clamping finger. The upper and lower cylinders control the material clamping finger to move up and down. The water flow belt component is arranged on the outside of the slideway assembly and below the conveying component, and the water flow belt part of the water flow belt component is driven by a driving motor.

2. The automatic detection machine for EI mutual inductor according to claim 1, characterized in that: The detection component is arranged above the carrier to be tested, and the detection component moves up and down above the carrier to be tested through a test cylinder.

3. The automatic detection machine for EI mutual inductor according to claim 1, characterized in that: The detection mechanism is provided with three detection components, which are electrically connected to the power frequency withstand voltage instrument, the induction withstand voltage instrument, and the precision testing instrument respectively, and the detection components corresponding to the power frequency withstand voltage instrument, the induction withstand voltage instrument, and the precision testing instrument are distributed and arranged in sequence from right to left along the circular slide.

4. The automatic detection machine for EI mutual inductor according to claim 1, characterized in that: A proximity switch is arranged on one side of each push plate, and the sensing surface of the proximity switch is directly opposite to the forward direction of any circular slideway.

5. The automatic testing machine for EI mutual inductor according to claim 1, characterized in that: The carrier to be tested comprises a bottom plate, a positioning plate and a test clamp support seat are arranged on the bottom plate, a plurality of positioning pins for fixing the EI mutual inductor are arranged on the positioning plate, and a test clamp is arranged on the test clamp support seat.

6. The automatic testing machine for EI mutual inductor according to claim 1, characterized in that: The detection mechanism also includes a clamping component, which is divided into a loading clamping component and a unloading clamping component, which are respectively arranged on the side of the detection component and the conveying component in the forward direction of movement of the carrier to be tested, including a clamping cylinder and a clamping pull plate, and are all fixed on the surface of the slide assembly.

7. The automatic testing machine for EI mutual inductor according to claim 6, characterized in that: The clamp opening component is arranged above the test clamp in the carrier to be tested, and the clamp opening pull plate is driven by the clamp opening cylinder to move to open and close the test clamp.

8. The automatic testing machine for EI mutual inductor according to claim 1, characterized in that: The slideway assembly is provided with detection optical fibers, which are respectively arranged on the side of the loading and clamping component, the detection component and the unloading and clamping component in the moving direction of the carrier to be tested.

9. The automatic testing machine for EI mutual inductor according to claim 1, characterized in that: The water flow belt component includes a driving motor, a main transmission shaft coaxially arranged with the driving motor, a transmission belt shaft spaced apart from the same horizontal axis, and a transmission belt sleeved between the transmission belt shafts. The output shaft of the driving motor is connected to the main transmission shaft. Conveyor belt baffles are arranged on both sides of the conveyor belt. The conveyor belt baffles on both sides form a conveying channel. The width of the conveying channel is greater than or equal to the size of the EI mutual inductor.

10. The automatic testing machine for EI mutual inductor according to claim 1, characterized in that: A PLC controller is also arranged in the frame, and the PLC controller is connected with the push cylinder, the test cylinder, the upper and lower cylinders and the clamping cylinder signals, and is connected with the proximity switch and the detection optical fiber signal.

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