Ceramic high-voltage direct-current contactor semi-finished product performance testing equipment

Abstract

The invention relates to the technical field of contactor testing, in particular to a device and method for testing the performance of a semi-finished product of a ceramic high-voltage direct-current contactor. Comprising a rotating disc and a plurality of testing carriers, and a feeding and discharging gathering module, a mechanical parameter testing module, a product overturning module, an electrical parameter testing module and a defective product discharging module are sequentially and annularly arranged along the rotating path of the rotating disc; the structure and the method for cooperatively detecting the contact gap, the contact overtravel, the contact initial pressure and the contact final pressure of a product in one-time integrated action realize one-time automatic detection of mechanical parameters and electrical parameters of a semi-finished product of the ceramic high-voltage direct-current contactor, improve the test efficiency and ensure the data accuracy, and meanwhile, reduce the test cost. Manual operation errors and product circulation damage are effectively avoided, a quality tracing system covering the whole test process is constructed, and the technical problems of low efficiency, poor consistency and data non-traceability existing in a traditional dispersed test mode are solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of bulk material loading, and in particular to a ceramic high-voltage direct-current contactor semi-finished product performance testing device. BACKGROUND

[0002] The core function of a ceramic high-voltage direct-current contactor is to realize reliable on-off control of a high-voltage direct-current loop, and the performance is highly dependent on the quality of a contact system. Therefore, it is crucial to comprehensively test the performance of the contact system at the semi-finished product stage.

[0003] The ceramic high-voltage direct-current contactor testing technology in the prior art has significant deficiencies. Currently, a dispersed testing mode of multiple instruments working in different procedures and steps is generally adopted to sequentially complete the measurement of contact gap, overstroke, initial pressure, final pressure and electrical performance. This traditional mode leads to a long testing process, low efficiency and serious dependence on manual operation, resulting in poor consistency and accuracy of the test results. Meanwhile, frequent manual turnover not only increases the risk of product damage and mixing, but also leads to a series of problems such as high skill requirement of personnel, complex management and rising production cost. SUMMARY

[0004] The application aims to provide a ceramic high-voltage direct-current contactor semi-finished product performance testing device to realize one-time automatic detection of mechanical parameters and electrical parameters of the ceramic high-voltage direct-current contactor semi-finished product, effectively eliminate manual operation errors and product damage during turnover, build a quality traceability system covering the whole testing process, and solve the technical problems of low efficiency, poor consistency and untraceable data in the traditional dispersed testing mode.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the application is as follows: a rotating disc and a plurality of testing carriers are included, the testing carriers are arranged on the rotating disc and rotate with the rotating disc; An upper and lower feeding assembly module, a mechanical parameter testing module, a product overturning module, an electrical parameter testing module and a defective product discharging module are sequentially arranged along the rotating path of the rotating disc; The mechanical parameter testing module includes an upper servo module, a lower servo module, a pressing device, a testing probe group and a displacement sensor; The pressing device is fixed on the upper servo module, the testing probe group is fixed on the lower servo module, and the displacement sensor is used to sense the displacement of the upper servo module; A plurality of force value detection sensors and elastic pressing pieces are arranged in the pressing mechanism; The elastic pressing pieces are driven to press down and fix the product in the testing carrier by the upper servo module; The force value detection sensor is driven by the upper servo module to press the moving iron core of the product in the test carrier; The lower servo module drives the test probe group to contact the static contact of the product in the test carrier; The mechanical parameter test module drives the force value detection sensor to press the moving iron core by the upper servo module and drives the test probe group to contact the static contact by the lower servo module, and the feedback signals of the displacement sensor and the force value detection sensor are used to detect the contact gap, contact overtravel, contact initial pressure and contact final pressure of the product in one integrated action.

[0006] Further, the feeding and discharging assembly module is provided with a forward and reverse detection sensor to detect the placement direction of the product, and a cleaning module is further provided in front of the feeding and discharging assembly module.

[0007] Further, the displacement sensor is arranged on the back side of the upper servo module in the mechanical parameter test module and cooperates with the displacement detection block extended to the back side of the upper servo module.

[0008] Further, the lower servo module is connected with a probe adjustment cylinder, which drives the test probe group and adjusts the probe spacing thereof.

[0009] Further, the product turnover module includes a moving iron core clamping jaw cylinder and a static contact clamping jaw cylinder; the moving iron core clamping jaw cylinder is configured to clamp the moving iron core of the product in the X direction, and the static contact clamping jaw cylinder is configured to clamp the position between the static contacts of the product in the Z direction.

[0010] Further, the product turnover module is further provided with a turnover cylinder and a taking and placing cylinder, and the moving iron core clamping jaw cylinder and the static contact clamping jaw cylinder are fixed on the turnover cylinder, and the turnover cylinder and the taking and placing cylinder drive the rotation and taking and placing.

[0011] Further, the electrical parameter test module includes an electrical test upper servo module and an electrical test lower servo module; the electrical test upper servo module is provided with a four-contact electrical test probe group and a pressing block; and the electrical test lower servo module is provided with a test coil.

[0012] Further, the electrical test upper servo module is connected with an automatic distance adjustment mechanism, which automatically adjusts the spacing of the four-contact electrical test probe group according to the product model.

[0013] Further, the test carrier includes an insulating isolation body, and a metal guard plate is arranged on the top of the insulating isolation body; The test carrier is installed on the rotating disc through a carrier base, and an adjustable fixing point is arranged in the carrier base to adapt to the installation of test carriers of different models.

[0014] A method for testing the performance of a ceramic high-voltage direct-current contactor semi-finished product, the method comprising the following steps: The loading and detection step: placing the product on the test carrier in the loading and unloading assembly module, and detecting the product direction through the forward and reverse detection sensor; The mechanical parameter integrated testing step: performing integrated testing in the mechanical parameter testing module, controlling the upper servo module to drive the compression mechanism to press down, fixing the product through the elastic compression part, and controlling the lower servo module to rise, driving the test probe group to contact the static contact point of the product, sensing the position of the moving iron core of the product in the test carrier driven by the force value detection sensor through the displacement sensor, and integrating the signals of the force value detection sensor and the test probe group to detect the contact point gap, contact point overstroke, contact point initial pressure, and contact point final pressure of the product; The product turnover step: clamping the product through the moving iron core clamp cylinder and the static contact point clamp cylinder in the product turnover module, and driving the product to turn over to adapt to the subsequent test station; The electrical parameter testing step: controlling the electrical test upper servo module to drive the electrical test probe group to press down to the static contact point, and controlling the electrical test lower servo module to drive the test coil to rise to the moving iron core in the electrical parameter testing module, applying test voltage and current to the product to test its electrical parameters; The result determination and sorting step: determining whether the product is qualified based on the test results of the mechanical parameters and electrical parameters, and automatically sorting the defective products to the NG material channel in the defective product unloading module; The manual unloading step: manually unloading the good products in the loading and unloading assembly module.

[0015] By including a rotating disc and a plurality of test carriers, the test carriers are arranged on the rotating disc and rotate with it; an unloading and loading assembly module, a mechanical parameter test module, a product turnover module, an electrical parameter test module and a defective product unloading module are sequentially arranged along the rotating path of the rotating disc; the mechanical parameter test module includes an upper servo module, a lower servo module, a pressing device, a test probe group and a displacement sensor; the pressing device is fixed on the upper servo module, the test probe group is fixed on the lower servo module, and the displacement sensor is used to sense the displacement of the upper servo module; a plurality of force value detection sensors and elastic pressing pieces are arranged in the pressing mechanism; the elastic pressing pieces are driven downward by the upper servo module and fix the products in the test carrier; the force value detection sensors are driven downward by the upper servo module to fix the position of the moving iron core of the products in the test carrier; the lower servo module is driven upward to drive the test probe group to contact the static contact point of the products in the test carrier; the mechanical parameter test module drives the force value detection sensors to press the moving iron core and the lower servo module to drive the test probe group to contact the static contact point through the upper servo module, and the feedback signals of the displacement sensor and the force value detection sensor are used to cooperatively detect the structures and methods of the contact point gap, the contact point overtravel, the contact point initial pressure and the contact point final pressure of the products in one integrated action, so that the mechanical parameters and electrical parameters of the ceramic high-voltage DC contactor semi-finished product are realized one-time automatic detection, the test efficiency is improved, the data accuracy is ensured, the manual operation error and product flow damage are effectively eliminated, the quality traceability system covering the whole test process is constructed, and the technical problems of low efficiency, poor consistency and untraceable data existing in the traditional dispersed test mode are solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0017] Figure 1 It is a structural perspective view of a ceramic high-voltage DC contactor semi-finished product performance test equipment of the present application. Figure 2 It is a structural top view of a ceramic high-voltage DC contactor semi-finished product performance test equipment of the present application. Figure 3 It is a mechanical parameter module structure schematic diagram of the present application. Figure 4 It is a product turnover module structure schematic diagram of the present application. Figure 5It is an electrical parameter test module structure schematic diagram of the present application. Figure 6 It is a test carrier structure schematic diagram of the present application. Figure 7 It is a cleaning module structure schematic diagram of the present application.

[0018] Reference signs: Feeding and discharging collection module 1, mechanical parameter test module 2, upper servo module 2-1, displacement detection pressing block 2-1-1, lower servo module 2-2, force value detection sensor 2-3, elastic pressing piece 2-4, product turnover module 3, moving iron core clamping jaw cylinder 3-1, static contact clamping jaw cylinder 3-2, electrical parameter test module 4, electrical test upper servo module 4-1, electrical test lower servo module 4-2, defective product discharging module 5, cleaning module 6, rotating disc 7, test carrier 8, insulation isolation main body 8-1, carrier base 8-2, metal guard plate 8-3. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0020] In the description of the present application, it should be noted that the orientation or position relationship indicated by "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the devices or elements indicated to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0021] A kind of ceramic high-voltage direct-current contactor semi-finished product performance test equipment, as shown in Figures 1-7 It includes rotating disc 7 and multiple test carriers 8, the test carrier 8 is arranged on the rotating disc 7 and rotates with it; Feeding and discharging collection module 1, mechanical parameter test module 2, product turnover module 3, electrical parameter test module 4 and defective product discharging module 5 are sequentially annularly arranged along the rotating path of the rotating disc 7; The mechanical parameter test module 2 includes upper servo module 2-1, lower servo module 2-2, pressing device, test probe group and displacement sensor; The pressing device is fixed on the upper servo module 2-1, the test probe group is fixed on the lower servo module 2-2, and the displacement sensor is used to sense the displacement of the upper servo module 2-1; A plurality of force value detection sensors 2-3 and elastic elastic pressing pieces 2-4 are arranged in the pressing mechanism. The elastic pressure member 2-4 is driven by the upper servo module 2-1 to press down and fix the product in the test carrier 8; The moving iron core position of the product in the test carrier 8 is detected by the force value detection sensor 2-3 driven by the upper servo module 2-1; The test probe group is driven by the lower servo module 2-2 to contact the static contact of the product in the test carrier 8; The mechanical parameter test module 2 drives the force value detection sensor 2-3 to press down the moving iron core and the test probe group to contact the static contact by the upper servo module 2-1 and the lower servo module 2-2, and the feedback signals of the displacement sensor and the force value detection sensor 2-3 are used to detect the contact gap, the contact overstroke, the initial contact pressure and the final contact pressure of the product in one integrated action.

[0022] Specifically, the system includes a rotating disk 7 and multiple test carriers 8. The test carriers 8 are mounted on the rotating disk 7 and rotate with it. Along the rotation path of the rotating disk 7, a loading / unloading assembly module 1, a mechanical parameter testing module 2, a product flipping module 3, an electrical parameter testing module 4, and a defective product unloading module 5 are arranged in sequence. The loading / unloading assembly module 1 is responsible for loading products and unloading good products. The mechanical parameter testing module 2 includes an upper servo module 2-1, a lower servo module 2-2, a clamping device, a test probe group, and a displacement sensor. The clamping device is fixed on the upper servo module 2-1, and the test probe group is fixed on the lower servo module 2-2. In group 2-2, the clamping mechanism is equipped with a force value detection sensor 2-3 and an elastic spring-loaded component 2-4. During the specific testing process of the mechanical parameter testing module 2, the upper servo module 2-1 drives the clamping mechanism downwards. The spring-loaded component 2-4 first contacts and clamps the product, fixing it in place. Subsequently, the upper servo module 2-1 continues to drive, causing the force value detection sensor 2-3 to move downwards and contact the moving iron core of the product. Simultaneously, the lower servo module 2-2 drives the test probe group upwards, bringing it into contact with the stationary contact point of the product. The displacement sensor detects the displacement of the upper servo module 2-1 in real time. During testing, the displacement sensor records the intersection of the displacements of the moving and stationary contacts from separation to initial conduction, which corresponds to the contact gap. The upper servo module 2-1 continues to drive, recording the displacement intersection point when the contacts are fully closed and the mechanical travel reaches its maximum. The displacement difference between this point and the initial conduction point is the contact overtravel. The force value detection sensor 2-3 collects the initial contact pressure when the contacts are initially conducting, and the force value collected when the magnetic gap is zero, i.e., the contacts are fully closed, is the final contact pressure. The mechanical parameter testing module 2 coordinates the actions of the upper servo module 2-1 and the lower servo module 2-2, and comprehensively processes the feedback signals from the displacement sensor and the force value detection sensor 2-3, so as to collaboratively complete the detection of four key mechanical parameters of the product—contact gap, contact overtravel, initial contact pressure, and final contact pressure—in one integrated test action. After the mechanical parameter test is completed, the product flows with the rotating disk 7 to the product flipping module 3 for posture adjustment, then enters the electrical parameter testing module 4 for electrical performance testing, and finally completes automatic sorting in the defective product unloading module 5. This solution integrates multiple testing modules onto the rotating disk 7, achieving a high degree of automation and continuity in the testing process. Furthermore, the mechanical parameter testing module 2 innovatively employs coordinated operation of upper and lower servo modules, combining signals from displacement and force sensors to accurately complete the coordinated detection of four mechanical parameters in a single integrated action. This not only improves testing efficiency but also ensures the consistency of test results. Simultaneously, the integrated equipment reduces manual intervention, lowers the risk of product damage, and enables precise traceability of quality information.

[0023] As a preferred embodiment of the above, such as Figures 1-7As shown, the feeding and discharging collection module 1 is provided with a forward-reverse detection sensor and detects the product placement direction, and the feeding and discharging collection module 1 is further provided with a cleaning module 6.

[0024] Specifically, the forward-reverse detection sensor adopts a photoelectric sensor, and its installation position is accurately calibrated so that it can align with the identification features of a specific direction of the product, such as the protruding pipeline of the product. When the test carrier 8 flows to the feeding and discharging collection module 1 and stops stably, the photoelectric sensor is triggered to emit a detection light beam. If the product placement direction is correct, the features such as the exhaust pipe will block or reflect the light beam. After the sensor receives the expected signal, it is determined that the direction is correct, and the equipment is allowed to enter the next operation cycle. If the product is placed in the wrong direction, the sensor cannot receive the expected signal, and the equipment immediately suspends operation and reminds the operator to correct the product direction through the audible and visual alarm. Thus, by integrating the forward-reverse detection sensor in the feeding and discharging collection module 1, the automatic verification of the product direction is realized, and an effective error-proof mechanism is formed. The error of the product direction caused by human negligence is avoided, thereby preventing the risks of poor contact between the test probe group and the product, test data error, and even equipment or product damage that may occur due to incorrect product posture in the subsequent workstations. The dependence on the continuous concentration of the operator is reduced, the stability of the production rhythm is improved, and the reliability of the entire automated test process is improved, thereby providing a basic guarantee for the efficient and fault-free operation of the equipment. The feeding and discharging collection module 1 is further provided with a cleaning module 6 for cleaning the good products.

[0025] As a preferred embodiment of the above embodiment, as Figures 1-7 As shown, the displacement sensor is arranged on the back side of the upper servo module 2-1 in the mechanical parameter test module 2 and cooperates with the displacement detection block 2-1-1 extending to the back side of the upper servo module 2-1.

[0026] Specifically, by setting the displacement sensor on the back side of the upper servo module 2-1 in the mechanical parameter testing module 2, and cooperating with the displacement detection block 2-1-1 extending to the back side of the upper servo module 2-1, the displacement sensor is fixed on the base of the mechanical parameter testing module 2 through a specially designed mounting bracket, the detection end of the displacement sensor is accurately aligned with the measurement plane of the displacement detection block 2-1-1, the displacement detection block 2-1-1 is rigidly connected with the moving part of the upper servo module 2-1, when the upper servo module 2-1 drives the pressing device to perform the downward or upward action, the displacement detection block 2-1-1 moves synchronously, the displacement sensor detects the displacement change of the displacement detection block 2-1-1 in real time through the non-contact measurement method, so as to accurately perceive the linear displacement of the upper servo module 2-1. The displacement sensor is arranged on the back side of the upper servo module 2-1, and the signal is transmitted through the displacement detection block 2-1-1, the layout structure is compact, which effectively avoids the space interference between the sensor, the pressing mechanism and the product in the front end, ensures the rationality of the internal structure of the mechanical parameter testing module 2, separates the displacement sensing system and the main actuator in space, reduces the influence of vibration and heat source caused by the actuator action on the measurement accuracy of the sensor, provides more stable and reliable data basis for the parameters such as contact gap and overtravel which need high-precision displacement measurement, and improves the accuracy and repeatability of the mechanical parameter testing.

[0027] As a preferred embodiment of the above embodiment, as shown in Figures 1-7 The lower servo module 2-2 is connected with a probe adjusting cylinder, and the probe adjusting cylinder drives the test probe group and adjusts the probe spacing.

[0028] Specifically, in the mechanical parameter testing module 2, the lower servo module 2-2 is connected with a probe adjusting cylinder, which drives the testing probe group and adjusts the structure of the probe spacing. The cylinder body of the probe adjusting cylinder is fixedly installed on the moving part of the lower servo module 2-2, and the output end of the piston rod thereof is connected with the mounting base of the testing probe group. The testing probe group is usually composed of two or more independent probes, which are installed on a slidable base. When the device control system identifies the model of the current product to be tested, it will send a command to control the probe adjusting cylinder to act. The piston rod of the cylinder extends or retracts, driving the mounting base of the testing probe group to slide along the preset guide mechanism, thereby changing the relative distance between the probes, so that they are accurately aligned and adapted to the actual position of the current product static contact. By integrating the probe adjusting cylinder in the lower servo module 2-2, the mechanical parameter testing module 2 is given the ability to automatically adjust the spacing of the testing probe group. This design enables the same testing equipment to quickly adapt to different models of ceramic high-voltage DC contactor semi-finished products, effectively solving the problem of misalignment, poor contact or inability to contact between the testing probe and the product static contact caused by differences in product structure and size. It eliminates the cumbersome steps of manually replacing jigs or manually adjusting the position of the probe in traditional testing, significantly improving the compatibility of the equipment for different products and the debugging efficiency when switching product models on the production line, and providing key technical support for flexible testing and efficient production.

[0029] As a preferred embodiment of the above, as shown in Figures 1-7 The product turnover module 3 includes a moving iron core clamping jaw cylinder 3-1 and a static contact clamping jaw cylinder 3-2. The moving iron core clamping jaw cylinder 3-1 is configured to clamp the product moving iron core in the X direction, and the static contact clamping jaw cylinder 3-2 is configured to clamp the position between the product static contacts in the Z direction.

[0030] As a preferred embodiment of the above, as shown in Figures 1-7 The product turnover module 3 is further provided with a turnover cylinder and a taking and placing cylinder. The moving iron core clamping jaw cylinder 3-1 and the static contact clamping jaw cylinder 3-2 are fixed on the turnover cylinder, and the rotation and taking and placing are driven by the turnover cylinder and the taking and placing cylinder.

[0031] Specifically, the product turnover module 3 includes a moving iron core clamp jaw cylinder 3-1 and a static contact clamp jaw cylinder 3-2, the moving iron core clamp jaw cylinder 3-1 is configured to move in the X-axis direction and clamp the moving iron core part of the product, and the static contact clamp jaw cylinder 3-2 is configured to move in the Z-axis direction and clamp the shell position between the static contacts of the product. This layout forms a three-point fixing structure for the key parts of the product. The product turnover module 3 is also provided with a turnover cylinder and a taking and placing cylinder. The moving iron core clamp jaw cylinder 3-1 and the static contact clamp jaw cylinder 3-2 are both fixedly installed on the rotating part of the turnover cylinder. When it is necessary to turn over the product, the taking and placing cylinder first drives the entire clamping mechanism to reach above the product, and then the clamp jaw cylinders act to reliably clamp the product. Next, the turnover cylinder drives the rotating part to rotate the clamped product by a specific angle, and after completing the turnover action, the taking and placing cylinder places the product on the correct position of the transfer station. By using the moving iron core clamp jaw cylinder 3-1 and the static contact clamp jaw cylinder 3-2 to cooperatively clamp in the X and Z directions respectively, stable and reliable fixation of irregularly shaped products is achieved, effectively avoiding the possible loosening or falling of the product during the turnover process. Combined with the cooperative control of the turnover cylinder and the taking and placing cylinder, complete automation of the posture adjustment of the product in the test process is achieved, ensuring that the product can enter the subsequent electrical parameter test module 4 with accurate orientation, providing necessary conditions for ensuring the consistency and accuracy of the test, and improving the automation degree and operation efficiency of the production line.

[0032] As a preferred embodiment of the above, as shown in Figures 1-7 The electrical parameter test module 4 includes an electrical test upper servo module 4-1 and an electrical test lower servo module 4-2; the electrical test upper servo module 4-1 is provided with a four-contact electrical test probe group and a pressing block; and the electrical test lower servo module 4-2 is provided with a test coil.

[0033] As a preferred embodiment of the above, as shown in Figures 1-7 The electrical test upper servo module 4-1 is connected with an automatic distance adjusting mechanism, and the automatic distance adjusting mechanism automatically adjusts the distance of the four-contact electrical test probe group according to the product model.

[0034] Specifically, the electrical parameter test module 4 includes an electrical test upper servo module 4-1 and an electrical test lower servo module 4-2. The electrical test upper servo module 4-1 is provided with a four-contact electrical test probe group and a pressing block. The electrical test lower servo module 4-2 is provided with a test coil structure. When the product flows to the station, the electrical test lower servo module 4-2 drives the test coil to rise to the product moving iron core position, and the electrical test upper servo module 4-1 drives the four-contact electrical test probe group to press down to make it reliably contact with the product static contact point, and the pressing block ensures the stability of the product during the test. The test coil is energized to simulate the working state of the product, so that the moving iron core moves, and the four-contact electrical test probe group is used to collect various electrical parameters of the product during the on-off process. The electrical test upper servo module 4-1 is connected with an automatic distance separating mechanism. According to the product model instruction issued by the control system, the mechanism automatically drives each probe in the four-contact electrical test probe group to move along a specific guide structure, so as to accurately adjust the distance between the probes, so that it is completely matched with the actual distribution position of the static contact point of the current product to be tested. Through the coordinated action of the electrical test upper servo module 4-1 and the electrical test lower servo module 4-2, the precise positioning and automatic operation of the product electrical parameter test are realized. The automatic distance separating mechanism enables the same test module to quickly adapt to the static contact point layout of different models of products, effectively solves the problem of poor contact or inability to contact multiple test points at the same time caused by product structure differences, significantly improves the compatibility of the equipment for different products, eliminates the manual replacement of fixtures or manual adjustment, ensures the reliability and consistency of the electrical parameter test, and improves the efficiency of product model switching.

[0035] As a preferred embodiment of the above, as shown in Figures 1-7 The test carrier 8 includes an insulating isolation body 8-1, and a metal guard plate 8-3 is arranged on the top of the insulating isolation body 8-1. The test carrier 8 is installed on the rotating disc 7 through a carrier base 8-2, and the carrier base 8-2 is provided with an adjustable fixing point to adapt to the installation of different models of test carriers 8.

[0036] Specifically, the test carrier 8 includes an insulating isolation body 8-1, and a metal guard plate 8-3 is arranged on the top of the insulating isolation body 8-1. The insulating isolation body 8-1 is made of insulating materials such as bakelite, and is provided with a precisely formed accommodating groove inside for placing products. The metal guard plate 8-3 is made of durable metal materials such as stainless steel, and is fixedly covered on the top surface of the insulating isolation body 8-1 through a mechanical connection mode. The test carrier 8 is installed on the rotating disc 7 through a carrier base 8-2, and the carrier base 8-2 is provided with an adjustable fixing point. By adjusting the position of the screw in the sliding groove or replacing the adaptive block, different models of test carriers 8 can be fixedly installed.

[0037] The insulating isolation body 8-1 effectively prevents the interference of the coil magnetic field by the tool metal material when the electrical parameter test module 4 is testing, avoids the change of the magnetic circuit distribution and the change of the electromagnetic attraction, and ensures the accuracy of the electrical performance test. The metal guard plate 8-3 at the top solves the problem that the product edge may scratch the bakelite material to generate debris, prevents the debris from entering the product interior to cause failure, and significantly improves the reliability of the test and the product protection level. The adjustable fixing point design of the carrier base 8-2 enables the equipment to quickly adapt to different models of test carriers 8, greatly enhances the flexibility of the entire test production line, and improves the equipment utilization and production flexibility.

[0038] A method for testing the performance of a ceramic high-voltage DC contactor semi-finished product, the method comprising the following steps: The loading and detection step: placing the product on the test carrier 8 in the loading and unloading collection module 1, and detecting the product direction through the forward and reverse detection sensor; The mechanical parameter integrated test step: performing integrated test in the mechanical parameter test module 2, controlling the up servo module 2-1 to drive the pressing mechanism to press down, fixing the product through the elastic pressing piece 2-4, and at the same time, driving the test probe group to contact the static contact point of the product by controlling the down servo module 2-2 to rise, sensing the position of the moving iron core of the product in the test carrier 8 driven by the force value detection sensor 2-3 through the displacement sensor, and integrating the detection of the contact point gap, contact point overstroke, contact point initial pressure and contact point final pressure of the product in combination with the signals of the force value detection sensor 2-3 and the test probe group; The product turnover step: clamping the product through the moving iron core clamp cylinder 3-1 and the static contact point clamp cylinder 3-2 in the product turnover module 3, and driving the product to turn over to adapt to the subsequent test station; The electrical parameter test step: controlling the electrical test up servo module 4-1 to drive the electrical test probe group to press down to the static contact point, and controlling the electrical test down servo module 4-2 to drive the test coil to rise to the moving iron core in the electrical parameter test module 4, so as to apply test voltage and current to the product to test its electrical parameters; The result judgment and sorting step: judging whether the product is qualified based on the test results of the mechanical parameters and electrical parameters, and automatically sorting the defective products to the NG material channel in the defective product unloading module 5; The manual unloading step: manually unloading the good products in the loading and unloading collection module 1.

[0039] Specifically, the method starts from the feeding and detecting step. The operator places the product on the test carrier 8 in the feeding and collecting module 1. At this time, the integrated forward and reverse detection sensor automatically detects the direction of the product to ensure that the direction is correct before the equipment can enter the next process. Then, the mechanical parameter integrated test step is entered. In the mechanical parameter test module 2, the upper servo module 2-1 drives the pressing mechanism to press down, and the product is stably fixed through the elastic pressing part 2-4, and the force value detection sensor 2-3 is pressed to the product moving iron core position. At the same time, the lower servo module 2-2 drives the test probe group to rise and reliably contact the product static contact. In this process, the displacement sensor senses the displacement of the upper servo module 2-1 in real time, and the control system synchronously collects the force value signal of the force value detection sensor 2-3 and the guide signal of the test probe group. Through comprehensive analysis of these signals, the accurate detection of four key mechanical parameters of the product contact gap, contact overtravel, contact initial pressure and contact final pressure is completed in one integrated test action. After completing the mechanical parameter test, the process enters the product turning step. In the product turning module 3, the moving iron core clamp jaw cylinder 3-1 and the static contact clamp jaw cylinder 3-2 act cooperatively to clamp the moving iron core and the static contact of the product, respectively. Through the cooperation of the turning cylinder and the taking and placing cylinder, the product is turned to a posture suitable for subsequent electrical test. Then, the electrical parameter test step is carried out. In the electrical parameter test module 4, the electrical test upper servo module 4-1 drives the four-contact electrical test probe group to press down to the product static contact, and the electrical test lower servo module 4-2 drives the test coil to top up to the product moving iron core position. The test system applies a specified test voltage and current to the product, and collects various electrical parameters of the product through the test probe group. Finally, the result determination and sorting step is carried out. The control system comprehensively analyzes the test results of the mechanical parameters and the electrical parameters to automatically determine whether the product is qualified. The defective product unloading module 5 automatically grabs and moves the defective product into the NG material channel according to the determination result. The good product is transferred back to the feeding and collecting module 1 with the test carrier 8, and the operator manually unloads it to complete the entire test process. This test method integrates the mechanical parameter test module 2 and the electrical parameter test module 4 in the same circulation path, and uses a cooperative control test logic to complete all performance tests in one-time clamping, which significantly improves the test efficiency. The mechanical parameter integrated test step completes the detection of four key mechanical parameters in one integrated action through synchronous acquisition and comprehensive analysis of multiple sensor signals, which not only improves the test speed, but also ensures the consistency and accuracy of the test data. The whole process realizes the full automation from direction recognition, parameter test to result determination and sorting, maximally reduces manual intervention, reduces the influence of human factors on test results, and realizes accurate traceability of product quality through data binding.

[0040] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A performance testing device for semi-finished ceramic high-voltage DC contactors, characterized in that: It includes a rotating disk (7) and multiple test carriers (8), the test carriers (8) being mounted on the rotating disk (7) and rotating therewith; Along the rotation path of the rotating disk (7), a loading and unloading assembly module (1), a mechanical parameter testing module (2), a product flipping module (3), an electrical parameter testing module (4), and a defective product unloading module (5) are arranged in sequence. The mechanical parameter testing module (2) includes an upper servo module (2-1), a lower servo module (2-2), a clamping device, a test probe group, and a displacement sensor; The clamping device is fixed on the upper servo module (2-1), the test probe group is fixed on the lower servo module (2-2), and the displacement sensor is used to sense the displacement of the upper servo module (2-1). The clamping mechanism is equipped with several force value detection sensors (2-3) and elastic spring-loaded components (2-4). The spring-loaded component (2-4) is driven by the upper servo module (2-1) to press down and fix the product inside the test carrier (8); The force detection sensor (2-3) is driven by the upper servo module (2-1) to press down on the moving iron core of the product inside the test carrier (8); The lower servo module (2-2) rises to drive the test probe group to contact the stationary contact point of the product inside the test carrier (8); The mechanical parameter testing module (2) drives the force detection sensor (2-3) to press down the moving iron core through the upper servo module (2-1) and drives the test probe group to contact the stationary contact through the lower servo module (2-2). The feedback signals from the displacement sensor and the force detection sensor (2-3) are used to collaboratively detect the contact gap, contact overtravel, initial contact pressure and final contact pressure of the product in one integrated action.

2. The performance testing equipment for semi-finished ceramic high-voltage DC contactors according to claim 1, characterized in that, The loading and unloading assembly module (1) is equipped with a forward and reverse detection sensor to detect the product placement direction, and a cleaning module (6) is also provided in front of the loading and unloading assembly module (1).

3. The performance testing equipment for semi-finished ceramic high-voltage DC contactors according to claim 1, characterized in that, The displacement sensor is located on the back side of the upper servo module (2-1) within the mechanical parameter testing module (2), and cooperates with the displacement detection block (2-1-1) extending from the upper servo module (2-1) to the back side.

4. The performance testing equipment for semi-finished ceramic high-voltage DC contactors according to claim 1, characterized in that, The lower servo module (2-2) is connected to a probe adjustment cylinder, which drives the test probe group and adjusts its probe spacing. The probe adjustment cylinder automatically adjusts the spacing of the test probe group to be compatible with different products.

5. The performance testing equipment for semi-finished ceramic high-voltage DC contactors according to claim 1, characterized in that, The product flipping module (3) includes a moving iron core gripper cylinder (3-1) and a stationary contact gripper cylinder (3-2); the moving iron core gripper cylinder (3-1) is configured to grip the moving iron core of the product in the X direction, and the stationary contact gripper cylinder (3-2) is configured to grip the stationary contact of the product in the Z direction.

6. The performance testing equipment for semi-finished ceramic high-voltage DC contactors according to claim 5, characterized in that, The product flipping module (3) is also provided with a flipping cylinder and a pick-and-place cylinder. The moving iron core gripper cylinder (3-1) and the stationary contact gripper cylinder (3-2) are fixed on the flipping cylinder and are driven to rotate and pick up / place by the flipping cylinder and the pick-and-place cylinder.

7. The performance testing equipment for ceramic high-voltage DC contactors according to claim 1, characterized in that, The electrical parameter testing module (4) includes an upper electrical testing servo module (4-1) and a lower electrical testing servo module (4-2); the upper electrical testing servo module (4-1) is equipped with a four-contact electrical testing probe group and a pressure block; the lower electrical testing servo module (4-2) is equipped with a test coil.

8. The performance testing equipment for semi-finished ceramic high-voltage DC contactors according to claim 7, characterized in that, The electrical test servo module (4-1) is connected to an automatic spacing mechanism, which automatically adjusts the spacing of the four-contact electrical test probe group according to the product model.

9. The performance testing equipment for semi-finished ceramic high-voltage DC contactors according to claim 1, characterized in that, The test carrier (8) includes an insulating isolation body (8-1) and a metal protective plate (8-3) disposed on the top of the insulating isolation body (8-1); The test vehicle (8) is mounted on the rotating disk (7) via a vehicle base (8-2). The vehicle base (8-2) is provided with adjustable fixing points to accommodate different models of test vehicles (8).

10. A method for testing the performance of a semi-finished ceramic high-voltage DC contactor, using the testing equipment as described in any one of claims 1 to 9, characterized in that, The method includes the following steps: Loading and testing steps: The product is placed on the test carrier (8) in the loading and unloading assembly module (1), and the product orientation is detected by the positive and negative detection sensors; Mechanical parameter integrated test steps: In the mechanical parameter test module (2), the integrated test is performed. The upper servo module (2-1) is controlled to drive the clamping mechanism to press down and fix the product through the spring-loaded part (2-4). At the same time, the moving iron core of the product is pressed down through the force value detection sensor (2-3). The lower servo module (2-2) is controlled to rise and drive the test probe group to contact the static contact of the product. The displacement sensor senses the position of the moving iron core of the product in the test carrier (8) driven by the servo module (2-1) to press down the force value detection sensor (2-3). Combined with the signals of the force value detection sensor (2-3) and the test probe group, the contact gap, contact overtravel, initial contact pressure and final contact pressure of the product are integrated and detected. Product flipping step: In the product flipping module (3), the product is clamped by the moving iron core gripper cylinder (3-1) and the stationary contact gripper cylinder (3-2), and the product is driven to flip to adapt to the subsequent test station; Electrical parameter testing steps: In the electrical parameter testing module (4), the upper servo module (4-1) of the electrical test is controlled to drive the electrical test probe group to press down to the stationary contact, and the lower servo module (4-2) of the electrical test is controlled to drive the test coil to the moving iron core, so as to apply test voltage and current to the product to test its electrical parameters; Result judgment and sorting steps: Based on the test results of the mechanical and electrical parameters, determine whether the product is qualified, and automatically sort the defective products to the NG material channel in the defective product unloading module (5); Manual unloading step: The good products are manually unloaded in the unloading assembly module (1).

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