Test equipment

Abstract

The utility model provides test equipment. The test equipment comprises a voltage resistance test station, a contact resistance test station, a withstand voltage test station, an operation test station and a conveying mechanism used for conveying high-voltage contactors among the test stations. The voltage resistance test work station is configured to perform voltage resistance test on the high-voltage contactor; the contact resistance test work station is configured to perform a contact resistance test on the high-voltage contactor subjected to the voltage resistance test; the withstand voltage test work station is configured to perform a withstand voltage test on the high-voltage contactor subjected to the contact resistance test; and the operation test work station is configured to perform operation test on the high-voltage contactor after the withstand voltage test. According to the testing equipment, the influence caused by manual operation testing is solved, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automated testing, and more specifically, to a testing device. Background Art

[0002] High-voltage contactors are mainly used in the field of electric vehicles and other industrial equipment. Working principle: When the wiring coil is energized, the coil current will generate a magnetic field. The generated magnetic field causes the static iron core to generate electromagnetic attraction to attract the moving iron core, and drive the AC contact point to operate, disconnect the normally closed contact, and close the normally open contact. When the coil is powered off, the magnetic field and electromagnetic attraction disappear. Under the action of the release spring, the armature is released, the electric shock is restored, and the contactor returns to normal state. It is mainly used in high-voltage circuits. It can not only connect and disconnect the circuit, but also play a role in release protection. It is suitable for circuits with large capacity, long distance, and frequent operation. It is an important electronic component in automatic control systems.

[0003] In the prior art, voltage resistance test, contact resistance test, withstand voltage test and Run-in test need to be performed manually, which is complicated, unsafe, unstable, inefficient, and error prone when changing products, and noisy. Therefore, an automated testing device is needed. Utility Model Content

[0004] In view of the above problems, the utility model provides a testing device which solves the impact of manual testing and reduces the labor cost.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a testing device, comprising:

[0007] Voltage resistance test station, contact resistance test station, withstand voltage test station, operation test station and a conveying mechanism for conveying high-voltage contactors between various test stations;

[0008] The voltage resistance test station is configured to perform a voltage resistance test on a high voltage contactor;

[0009] The contact resistance test station is configured to perform a contact resistance test on the high-voltage contactor after the voltage resistance test;

[0010] The withstand voltage test station is configured to perform a withstand voltage test on the high voltage contactor after the contact resistance test;

[0011] The operation test station is configured to perform an operation test on the high voltage contactor after the withstand voltage test.

[0012] The preferred embodiment is that the conveying mechanism includes a rotating platform that can rotate around its own axis; the rotating platform includes a bearing structure for fixing the high-voltage contactor; the voltage resistance test station, the contact resistance test station, the withstand voltage test station and the operation test station are arranged at intervals along the circumference of the rotating platform, and the high-voltage contactor can be rotated to the voltage resistance test station, the contact resistance test station, the withstand voltage test station and the operation test station in sequence through the rotation of the rotating platform.

[0013] A preferred solution is that the supporting structure includes a housing cavity for accommodating the high-voltage contactor and an adapter for connecting to the electrical connection end of the high-voltage contactor; the adapter is configured to respectively cooperate with each test station so that the high-voltage contactor can be electrically connected to each test station.

[0014] The preferred solution is that the voltage resistance test station, the contact resistance test station, the withstand voltage test station and the operation test station all include test fixtures; the test fixtures include a crimping part for pressing down and fixing the high-voltage contactor on the bearing structure, a first electrical connector for contacting and conducting with the contacts on the high-voltage contactor, a second electrical connector for electrically conducting with the adapter, and a driving part for driving the first electrical connector and the second electrical connector to reciprocate in the horizontal direction.

[0015] The preferred solution is that the voltage resistance test station, the contact resistance test station, the withstand voltage test station and the operation test station all include test fixtures; the test fixtures include a crimping piece for pressing down and fixing the high-voltage contactor on the bearing structure, a first electrical connector for contacting and conducting with the contacts on the high-voltage contactor, and a third electrical connector for plugging and conducting with the high-voltage contactor.

[0016] A preferred solution is that the test equipment further comprises a visual inspection mechanism for obtaining the model and position of the high-voltage contactor; the visual inspection mechanism is located upstream of the voltage resistance test station.

[0017] A preferred solution is that the visual inspection mechanism includes an anti-mistake piece for detecting the matching degree between the high-voltage contactor and the bearing structure, a pressing piece for pressing down and fixing the high-voltage contactor on the bearing structure, and a camera assembly for visually inspecting the high-voltage contactor.

[0018] A preferred solution is that the test equipment further comprises a coding mechanism disposed downstream of the operation test station for coding the high-voltage contactor after the operation test.

[0019] A preferred solution is that the coding mechanism includes an inkjet head, an inkjet instrument and a position adjustment mechanism for adjusting the position of the inkjet head relative to the high-voltage contactor.

[0020] A preferred solution is that the testing device further comprises a code scanning mechanism for scanning and identifying the inkjet code on the high-voltage contactor.

[0021] The beneficial effects of the utility model are:

[0022] The utility model performs voltage resistance test on high-voltage contactors, performs contact resistance test on high-voltage contactors after voltage resistance test, performs withstand voltage test on high-voltage contactors after contact resistance test, and performs operation test on high-voltage contactors after withstand voltage test through the coordination among voltage resistance test stations, contact resistance test on high-voltage contactors, withstand voltage test on high-voltage contactors after contact resistance test, and withstand voltage test on high-voltage contactors. The equipment only needs manual loading and unloading of products, and other tests are all completed automatically, thus solving the problems of influence and high labor cost caused by manual testing, and the equipment has high compatibility, can automatically visually detect product models and positions, and avoids losses caused by human operating errors. The equipment has high cost performance, can be compatible with a wide variety of test products, and is convenient for data recording and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0025] Figure 2 It is an assembly schematic diagram of the utility model.

[0026] Figure 3 It is a top view of the utility model.

[0027] Figure 4 It is one of the structural schematic diagrams of the test tooling of the utility model.

[0028] Figure 5 This is the second structural schematic diagram of the test tooling of the utility model.

[0029] Figure 6 It is a structural schematic diagram of the visual detection mechanism of the utility model.

[0030] Figure 7 It is a structural schematic diagram of the coding mechanism of the utility model.

[0031] Figure 8 It is a structural schematic diagram of the code scanning mechanism of the utility model.

[0032] Fig. 9 It is a structural schematic diagram of the rotating platform of the utility model.

[0033] Figure numerals: 1, voltage resistance test station, 2, contact resistance test station, 3, withstand voltage test station, 4, operation test station, 5, conveying mechanism, 52, bearing structure, 511, turntable, 512, cam divider, 521, adapter, 9, high-voltage contactor, 11, driving structure, 12, crimping plate, 13, first electrical connector, 14, second electrical connector, 15, driving member, 16, first mounting bracket, 17, third electrical connector, 18, adjusting cylinder, 1 9. Guide pin, 6. Visual inspection mechanism, 61. Second mounting frame, 62. Anti-foolproof cylinder, 63. Anti-foolproof plate, 64. Clamping cylinder, 65. Lower pressure plate, 66. Camera, 67. Light source, 7. Inkjet mechanism, 71. Inkjet head, 72. Inkjet instrument, 73. First linear module, 74. Second linear module, 75. Assembly frame, 8. Scanning mechanism, 81. Frame, 82. Scanning gun, 10. Workbench, 101. Reserved workstation, 202. Outer cover, 203. Opening. DETAILED DESCRIPTION

[0034] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0035] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0036] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0037] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0038] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0039] In order to solve the problems of low safety, poor stability, low efficiency, complex product changeover, easy error and high noise during manual operation test of high voltage contactor, the utility model provides a test equipment. Figures 1 to 9As shown, specifically, the test equipment includes: a voltage resistance test station 1, a contact resistance test station 2, a withstand voltage test station 3, an operation test station 4 and a conveying mechanism 5 for conveying high-voltage contactors 9 between the various test stations; the voltage resistance test station 1 is configured to perform a voltage resistance test on the high-voltage contactor 9; the contact resistance test station 2 is configured to perform a contact resistance test on the high-voltage contactor 9 after the voltage resistance test; the withstand voltage test station 3 is configured to perform a withstand voltage test on the high-voltage contactor 9 after the contact resistance test; the operation test station 4 is configured to perform an operation test on the high-voltage contactor 9 after the withstand voltage test. The test equipment solves the impact and cost problems caused by manual testing; 4 workers are saved through this test equipment, which greatly reduces labor costs; technicians in this field can understand that the high-voltage contactor 9 includes an electrical connection terminal and a contact, which is used to electrically conduct with the test equipment to transmit the test signal to complete the test; the high-voltage contactor 9 is loaded and unloaded by manually placing the high-voltage contactor 9 on the conveying mechanism 5, and manually removing the high-voltage contactor 9 from the conveying mechanism 5 after the test is completed.

[0040] In a specific embodiment, the conveying mechanism 5 includes a rotating platform that can rotate around its own axis; the rotating platform includes a bearing structure 52 for carrying and fixing the high-voltage contactor 9; the voltage resistance test station 1, the contact resistance test station 2, the withstand voltage test station 3 and the operation test station 4 are arranged at intervals along the circumference of the rotating platform, and the high-voltage contactor 9 can be rotated to the voltage resistance test station 1, the contact resistance test station 2, the withstand voltage test station 3 and the operation test station 4 in sequence through the rotation of the rotating platform; the rotating platform includes a turntable 511, a cam divider 512 connected to the turntable 511 to ensure the rotation accuracy of the turntable 511, and a drive motor that cooperates with the cam divider 512 to provide a rotation driving force for the turntable 511; the loading and unloading of the high-voltage contactor 9 to the turntable is manually completed at the loading and unloading station After being put on the disk 511, the turntable 511 of the rotating platform can drive the high-voltage contactor 9 on the bearing structure 52 to rotate in a clockwise direction to the voltage resistance test station 1 for voltage resistance test, rotate to the contact resistance test station 2 for contact resistance test, rotate to the withstand voltage test station 3 for withstand voltage test, rotate to the operation test station 4 for operation test, and finally the bearing structure 52 rotates to the loading and unloading station to unload the high-voltage contactor 9. It should be noted that the product loading and unloading is performed manually at the loading and unloading station; according to the coordination relationship between the rotating platform and each station, each test station can correspond to a bearing structure, which can ensure that each test station can simultaneously perform corresponding tests on the high-voltage contactor 9 on the corresponding bearing structure 52, thereby further improving the testing efficiency of the equipment.

[0041] In a specific embodiment, the supporting structure 52 includes a accommodating cavity for accommodating the high-voltage contactor 9 and an adapter 521 for connecting to the electrical connection end of the high-voltage contactor 9; the adapter 521 is configured to correspond to each test station so that the high-voltage contactor 9 can be electrically connected to each test station respectively. The electrical connection end of the high-voltage contactor 9 is a plug. By setting the adapter 521 and inserting the plug on the high-voltage contactor 9 into the adapter 521, and then plugging and connecting each test station with the adapter 521, electrical connection between each test station and the plug of the high-voltage contactor 9 is achieved. Through the above setting, the test equipment can be compatible with more types of products and expand the scope of application.

[0042] Furthermore, the voltage resistance test station 1, the contact resistance test station 2, the withstand voltage test station 3 and the operation test station 4 all include a test fixture, by which the test fixture can achieve electrical conduction between the test station and the plug and the contacts on the high-voltage contactor 9; the test fixture includes a crimping piece for pressing down and fixing the high-voltage contactor 9 on the bearing structure 52, the crimping piece includes a driving structure 11 and a crimping plate 12 arranged on the driving end of the driving structure 11, and the driving structure 11 drives the crimping plate 12 to move up and down to achieve the downward pressing and fixing of the high-voltage contactor 9 on the bearing structure 52 to compress the product The drive structure 11 can be a drive cylinder or a linear module arranged in the vertical direction, which is used to contact and conduct with the contacts on the high-voltage contactor 9, a second electrical connector 14 for electrically conducting with the adapter 521, and a drive member 15 for driving the first electrical connector 13 and the second electrical connector 14 to reciprocate in the horizontal direction. Specifically, the first electrical connector 13 can be a probe or a profiling plug. When performing a withstand voltage test, the first electrical connector 13 selects a profiling plug. When performing a functional test (voltage Resistance test, contact resistance test and operation test), the first electrical connector 13 selects a probe; the second electrical connector 14 can be a plug-in connector, and a plug-in connector corresponding to the plug-in connector is arranged on the adapter 521. The driving member 15 can be a driving cylinder or a linear module arranged in the horizontal direction. The first electrical connector 13 and the second electrical connector 14 are both arranged at the driving end of the driving member 15. The horizontal drive of the driving member 15 makes the first electrical connector 13 contact and conduct with the contact point on the corresponding high-voltage contactor 9, so that the second electrical connector 14 is plugged and connected with the adapter 521, thereby making the second electrical connector 1 4 is connected to the high-voltage contactor 9; the test fixture also includes a first mounting frame 16, and the drive structure 11 and the drive member 15 are both arranged on the first mounting frame 16; in an optional embodiment, the test fixture includes a crimping member for pressing down and fixing the high-voltage contactor 9 on the bearing structure 52, a first electrical connector 13 for contacting and connecting with the contact point on the high-voltage contactor 9, and a third electrical connector 17 for plugging and connecting with the high-voltage contactor 9; specifically, during the withstand voltage test, other types of third electrical connectors 17 can also be set on the driving end of the drive member 15 to adapt to other types of products such as Figure 4 During the functional test, other types of third electrical connectors 17 may be provided and individually matched with an adjustment cylinder 18 fixed to the first mounting frame 16 to adjust its position as shown Figure 5As shown, both of the above methods need to ensure that the various electrical connectors do not interfere with each other during operation; a guide pin 19 is also provided on the driving end of the driver 15, which is used to plug and match with the guide hole on the adapter 521 to ensure the accuracy of the plug-in. It should be noted that when the high-voltage contactor 9 does not need its own plug adapter, the first electrical connector 13 and the third electrical connector 17 are selected to be directly connected to the high-voltage contactor 9 for testing; and when the high-voltage contactor 9 needs to use its own plug adapter, the first electrical connector 13 is selected to be connected to the high-voltage contactor 9 and then connected to the plug of the high-voltage contactor 9 through the adapter 521 and the second electrical connector 14 for testing. The above method enables the test equipment to be compatible with more types of products.

[0043] In a specific embodiment, the testing equipment also includes a visual inspection mechanism 6 for obtaining the model and position of the high-voltage contactor 9; the visual inspection mechanism 6 is located upstream of the voltage resistance testing station 1. After the high-voltage contactor 9 is loaded onto the rotating platform, the high-voltage contactor 9 will be driven by the rotating platform to first reach the visual inspection mechanism 6 for visual inspection to confirm its model and position, and after the visual inspection is completed, subsequent corresponding inspections will be carried out in sequence.

[0044] In the above embodiment, specifically, the visual inspection mechanism 6 includes a second mounting frame 61, which is used to detect the matching degree between the high-voltage contactor 9 and the bearing structure 52. The anti-foolproofing part includes a horizontally arranged anti-foolproofing cylinder 62 fixed on the second mounting frame 61 and an anti-foolproofing plate 63 arranged on the cylinder rod of the anti-foolproofing cylinder 62. The anti-foolproofing cylinder 62 drives the anti-foolproofing plate 63 to move horizontally to ensure that the high-voltage contactor 9 is accurately and stably located in the accommodating cavity of the bearing structure 52, and the lower pressing part of the high-voltage contactor 9 on the bearing structure 52 is used to press down and fix it. And a camera assembly for visual inspection of the high-voltage contactor 9, the pressing part includes a clamping cylinder 64 vertically fixed on the second mounting frame 61 and a lower pressing plate 65 fixed on the cylinder rod of the clamping cylinder 64, the clamping cylinder 64 drives the lower pressing plate 65 to move up and down to achieve the downward pressing and fixing of the high-voltage contactor 9 on the bearing structure 52, and prevent the high-voltage contactor 9 from moving before visual inspection; the camera assembly includes a camera 66 and a light source 67 fixed on the second mounting frame 61, and the lens axis of the camera 66 is arranged along the vertical direction.

[0045] In a specific embodiment, the testing equipment also includes a coding mechanism 7 arranged downstream of the operation test station 4, which is used to spray code and mark the high-voltage contactor 9 after the operation test, spray an OK code on the product that passes the test, and spray an NG code on the product that fails the test, so as to facilitate the classification and placement of the products after unloading.

[0046] Furthermore, the coding mechanism 7 includes an inkjet head 71, an inkjet device 72 and a position adjustment mechanism for adjusting the position of the inkjet head 71 relative to the high-voltage contactor 9. The position adjustment mechanism specifically includes a first linear module 73 and a second linear module 74. In the same horizontal plane, the first linear module 73 and the second linear module 74 are arranged in perpendicular directions to each other. The inkjet head 71 is fixed on the moving part of the first linear module 73 and arranged vertically downward. The first linear module 73 is fixed on the moving part of the second linear module 74. The second linear module 74 is installed on the workbench 10 through an assembly frame 75. The position of the inkjet head 71 in the horizontal plane is adjusted by the two linear modules to accurately inkjet mark the high-voltage contactor 9 below.

[0047] Furthermore, the testing equipment also includes a scanning mechanism 8 for scanning and identifying the inkjet code on the high-voltage contactor 9; the scanning mechanism 8 is arranged at the loading and unloading station. When unloading, the inkjet mark on the high-voltage contactor 9 is scanned and identified by the scanning mechanism 8, so as to manually classify and unload the products that pass and fail the test; specifically, the scanning mechanism 8 includes a frame 81 fixed on the workbench 10 and a scanning gun 82 arranged on the frame 81. The scanning gun 82 is used to scan and identify the inkjet code on the product from above, which is quick and convenient.

[0048] In a specific embodiment, the testing equipment also includes a loading and unloading station and a reserved station 101 for loading and unloading the high-voltage contactor 9; the code scanning mechanism 8 is arranged at the loading and unloading station, and the reserved station 101 is located between the code scanning mechanism 8 and the coding mechanism 7. Other types of devices can be added at the reserved station 101 according to the product testing requirements.

[0049] In addition, the above-mentioned testing equipment also includes a workbench 10 and an outer cover 202 fixed to the workbench 10; the voltage resistance test station 1, the contact resistance test station 2, the withstand voltage test station 3, the operation test station 4 and the conveying mechanism 5; are all arranged on the workbench 10 and located in the outer cover 202, and an opening 203 is formed on the outer cover 202 for manual loading and unloading operations of the high-voltage contactor 9.

[0050] The specific working process of the utility model is as follows: the high-voltage contactor 9 to be tested is manually placed on the bearing structure 52 at the loading and unloading station, the turntable 511 of the rotating platform drives the high-voltage contactor 9 on the bearing structure 52 to rotate in a clockwise direction to the visual inspection mechanism 6 for visual inspection to determine the model and position of the high-voltage contactor 9 to be tested, rotate to the voltage resistance test station 1 for voltage resistance test, rotate to the contact resistance test station 2 for contact resistance test, rotate to the withstand voltage test station 3 for withstand voltage test, rotate to the operation test station 4 for operation test, rotate to the coding mechanism 7 to code the high-voltage contactor 9 after the operation test, and finally rotate to the loading and unloading station to scan the high-voltage contactor 9 through the scanning mechanism 8 for manual unloading.

[0051] To sum up, the utility model performs voltage resistance test on high-voltage contactors, contact resistance test on high-voltage contactors after voltage resistance test, withstand voltage test on high-voltage contactors after contact resistance test, and operation test on high-voltage contactors after withstand voltage test through the coordination among voltage resistance test station, contact resistance test station, withstand voltage test station, operation test station and conveying mechanism for conveying high-voltage contactors between various test stations. The equipment only needs manual loading and unloading of products, and other tests are all completed automatically, which solves the problems of influence and high labor cost caused by manual testing, and has high compatibility, can automatically visually detect product models and positions, avoids losses caused by human operating errors, has high cost performance, can be compatible with a wide variety of test products, and is convenient for data recording and storage.

[0052] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A testing device, characterized in that: include: Voltage resistance test station, contact resistance test station, withstand voltage test station, operation test station and a conveying mechanism for conveying high-voltage contactors between various test stations; The voltage resistance test station is configured to perform a voltage resistance test on a high voltage contactor; The contact resistance test station is configured to perform a contact resistance test on the high-voltage contactor after the voltage resistance test; The withstand voltage test station is configured to perform a withstand voltage test on the high voltage contactor after the contact resistance test; The operation test station is configured to perform an operation test on the high voltage contactor after the withstand voltage test.

2. The test device according to claim 1, characterized in that The conveying mechanism includes a rotating platform that can rotate around its own axis; the rotating platform includes a bearing structure for fixing the high-voltage contactor; the voltage resistance test station, the contact resistance test station, the withstand voltage test station and the operation test station are arranged at intervals along the circumference of the rotating platform, and the high-voltage contactor can be rotated to the voltage resistance test station, the contact resistance test station, the withstand voltage test station and the operation test station in sequence through the rotation of the rotating platform.

3. The testing device according to claim 2, characterized in that The bearing structure includes a housing cavity for accommodating the high-voltage contactor and an adapter for connecting to the electrical connection end of the high-voltage contactor; the adapter is configured to respectively cooperate with each test station so that the high-voltage contactor can be electrically connected to each test station.

4. The testing device according to claim 3, characterized in that The voltage resistance test station, contact resistance test station, withstand voltage test station and operation test station all include test fixtures; the test fixtures include a crimping piece for pressing down and fixing the high-voltage contactor on the bearing structure, a first electrical connector for contacting and conducting with the contacts on the high-voltage contactor, a second electrical connector for electrically conducting with the adapter, and a driving piece for driving the first electrical connector and the second electrical connector to reciprocate in the horizontal direction.

5. The testing device according to claim 2, characterized in that The voltage resistance test station, contact resistance test station, withstand voltage test station and operation test station all include test fixtures; the test fixtures include a crimping piece for pressing down and fixing the high-voltage contactor on the bearing structure, a first electrical connector for contacting and conducting with the contacts on the high-voltage contactor, and a third electrical connector for plugging and conducting with the high-voltage contactor.

6. The testing device according to claim 2, characterized in that: The testing equipment also includes a visual inspection mechanism for obtaining the model and position of the high-voltage contactor; the visual inspection mechanism is located upstream of the voltage resistance testing station.

7. The testing device according to claim 6, characterized in that The visual inspection mechanism includes an anti-mistake piece for detecting the matching degree between the high-voltage contactor and the bearing structure, a pressing piece for pressing down and fixing the high-voltage contactor on the bearing structure, and a camera assembly for visually inspecting the high-voltage contactor.

8. The testing device according to claim 1, characterized in that The testing equipment also includes a coding mechanism arranged downstream of the operation test station, which is used for coding and marking the high-voltage contactor after the operation test.

9. The testing device according to claim 8, characterized in that The coding mechanism comprises an inkjet head, an inkjet instrument and a position adjustment mechanism for adjusting the position of the inkjet head relative to the high-voltage contactor.

10. The testing device according to claim 8, characterized in that The testing device also includes a code scanning mechanism for scanning and identifying the spray code on the high-voltage contactor.

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