Molded case circuit breaker detection device and method

Abstract

The application discloses a plastic shell circuit breaker detection device and method, which comprises a workbench, a conveying mechanism, a lifting mechanism, a on-off detection mechanism, a tripping force detection mechanism, a push rod force detection mechanism and a opening and closing force detection mechanism. The conveying mechanism is used for conveying the plastic shell circuit breaker to a test station; the lifting mechanism can lift the plastic shell circuit breaker at the test station to a test station and place the detected plastic shell circuit breaker on the conveying mechanism; the on-off detection mechanism can detect the on-off of the plastic shell circuit breaker at the test station; the tripping force detection mechanism can detect the tripping force of the plastic shell circuit breaker at the test station; the push rod force detection mechanism can detect the push rod force of the plastic shell circuit breaker at the test station; and the opening and closing force detection mechanism can detect the opening and closing force of the plastic shell circuit breaker at the test station. The plastic shell circuit breaker detection device has high detection efficiency.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker testing technology, and in particular to a testing device and method for molded case circuit breakers. Background Technology

[0002] Circuit breakers are protective electrical appliances. If their protective characteristics malfunction, it will affect the normal operation of the power distribution system and may even endanger the safety of the system and electrical equipment. Therefore, product reliability is an important indicator of circuit breaker products. Thus, during the production process of circuit breakers, it is necessary to test their performance in various aspects, such as on / off testing, tripping force testing, push rod force testing, and opening / closing force testing, to ensure that their reliability meets the requirements.

[0003] Currently, in the production process of molded case circuit breakers, tests such as on / off switching, tripping force, push rod force, and opening / closing force are all conducted manually or using multiple single-function testing stations. During testing, the products need to be moved between multiple testing devices, which is not only inefficient but also poses safety hazards due to the weight of the molded case circuit breakers and the need for frequent handling. Furthermore, the test data is recorded manually and cannot be automatically aggregated, resulting in a low level of automation.

[0004] Therefore, there is an urgent need to propose a testing device and method for molded case circuit breakers to solve the above problems. Summary of the Invention

[0005] According to one aspect of the present invention, the present invention provides a molded case circuit breaker testing device, which can realize integrated automatic testing of multiple performance characteristics of molded case circuit breakers with high testing efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A testing device for molded case circuit breakers includes:

[0008] Workbench;

[0009] A conveying mechanism, located below the workbench, is used to convey the molded case circuit breaker to the test station;

[0010] A lifting mechanism is provided below the workbench. The lifting mechanism can lift the molded case circuit breaker located at the test station to the test station and place the tested molded case circuit breaker on the conveying mechanism.

[0011] A continuity testing mechanism is provided on the workbench. The continuity testing mechanism can fix the molded case circuit breaker and perform continuity testing on the molded case circuit breaker located at the test station.

[0012] A tripping force testing mechanism is installed on the workbench, and the tripping force testing mechanism is capable of testing the tripping force of the molded case circuit breaker located at the test station.

[0013] A push rod force detection mechanism is installed on the workbench, and the push rod force detection mechanism can detect the push rod force of the molded case circuit breaker located at the test station.

[0014] The opening and closing force detection mechanism is set on the workbench, and the opening and closing force detection mechanism can detect the opening and closing force of the molded case circuit breaker located at the test station.

[0015] Optionally, the continuity detection mechanism includes:

[0016] The guide portion is fixedly connected to the lower end face of the workbench. The guide portion includes a first guide plate, a second guide plate, a third guide plate, and a fourth guide plate. The first guide plate, the second guide plate, the third guide plate, and the fourth guide plate are connected end to end to form a receiving cavity. When the molded case circuit breaker is located at the test station, part of the molded case circuit breaker is located in the receiving cavity.

[0017] The first driving member has a fixed end that is fixedly connected to the first guide plate. The output end of the first driving member slides through the first guide plate. The output end of the first driving member can abut against the side wall of the molded case circuit breaker and push the molded case circuit breaker to abut against the third guide plate to fix the molded case circuit breaker between the output end of the first driving member and the third guide plate. The first guide plate and the third guide plate are arranged opposite to each other.

[0018] Two electrode modules are respectively disposed on the second guide rod plate and the fourth guide plate. One of the two electrode modules can be electrically connected to the inlet terminal block of the molded case circuit breaker, and the other can be electrically connected to the outlet terminal block of the molded case circuit breaker. The two electrode modules are electrically connected so that the two electrode modules can form a conductive circuit with the molded case circuit breaker.

[0019] Optionally, the electrode module includes:

[0020] A base having multiple mounting slots spaced apart along the length of the base;

[0021] Multiple electrodes are provided, each corresponding to a mounting slot. The electrodes are rotatably connected to the base, and one end of each electrode can be electrically connected to either the inlet or the outlet.

[0022] A reset elastic element is disposed between the electrode and the bottom wall of the mounting groove. One end of the reset elastic element is connected to the electrode, and the other end is connected to the bottom wall of the mounting groove.

[0023] Optionally, the tripping force detection mechanism includes:

[0024] A Y-axis moving component is disposed on the upper surface of the worktable;

[0025] The Z-axis moving component is driven to the Z-axis moving component, and the Y-axis moving component is capable of driving the Z-axis moving component to move along the Y-axis direction.

[0026] The trip lever is driven by the Z-axis moving component, which can drive the trip lever to move along the Z-axis direction. The trip lever can contact the trip switch of the molded case circuit breaker and push the trip switch to move.

[0027] A first force sensor is disposed between the Z-axis moving component and the tripping lever, for collecting tripping force information on the tripping lever.

[0028] Optionally, the push rod force detection mechanism includes:

[0029] The second driving component has its fixed end fixedly connected to the lower end face of the worktable.

[0030] A connector is provided, wherein the output end of the second driving member is driven to connect with the connector, and the second driving member is capable of driving the connector to move.

[0031] The push rod has one end connected to the connecting piece for transmission, and the other end can contact the push rod of the molded case circuit breaker and push the push rod to move.

[0032] A second force sensor is disposed between the connector and the push rod, and is used to collect push rod force information on the push rod.

[0033] Optionally, the push rod force detection mechanism further includes:

[0034] The first guide rail is fixedly connected to the lower end face of the worktable and extends along the movement direction of the output end of the second drive member, and the connecting member is slidably connected to the first guide rail.

[0035] Optionally, the opening and closing force detection mechanism includes:

[0036] The third driving component, the fixed end of which is fixedly connected to the upper end surface of the worktable;

[0037] Mounting plate, the output end of the third driving component is driven to the mounting plate, the third driving component can drive the mounting plate to move, the mounting plate includes a first connecting part and a second connecting part;

[0038] The tripping component is connected to the first connecting part;

[0039] A third force sensor is disposed between the first connecting part and the tripping component, for collecting tripping force information on the tripping component;

[0040] The closing component is connected to the second connecting part;

[0041] A fourth force sensor is disposed between the second connecting part and the closing component, and is used to collect closing force information on the closing component;

[0042] When the output end of the third drive unit extends, the tripping component contacts the handle of the molded case circuit breaker and pushes the handle to complete the tripping action. When the output end of the third drive unit retracts, the closing component contacts the handle and pushes the handle to complete the closing action.

[0043] Optionally, the opening and closing force detection mechanism further includes:

[0044] The second guide rail is fixedly connected to the upper surface of the worktable and extends along the movement direction of the output end of the third drive component. The mounting plate is slidably connected to the second guide rail.

[0045] Optionally, the lifting mechanism includes:

[0046] The mounting base plate is connected to the workbench.

[0047] The fourth driving component, wherein the fixed end of the fourth driving component is fixedly connected to the mounting base plate;

[0048] The fourth driving component has its output end passing through the mounting base plate and drivingly connected to the moving base plate. The fourth driving component can drive the moving base plate to move in the vertical direction.

[0049] The end support is fixedly connected to the moving base plate. When the output end of the fourth drive unit extends, the end support lifts the molded case circuit breaker to the test station. When the output end of the fourth drive unit retracts, the end support places the molded case circuit breaker on the conveying mechanism.

[0050] According to another aspect of the present invention, the present invention provides a method for testing molded case circuit breakers, the method being implemented based on the molded case circuit breaker testing device described in any of the above technical solutions, and comprising the following steps:

[0051] Adjust the initial positions of the continuity detection mechanism, tripping force detection mechanism, push rod force detection mechanism, and opening / closing force detection mechanism according to the specifications of the molded case circuit breaker;

[0052] The conveying mechanism transports the molded case circuit breaker to the testing station;

[0053] The lifting mechanism lifts the molded case circuit breaker to the test position and maintains the lifted state;

[0054] The continuity testing mechanism clamps and fixes the molded case circuit breaker, and performs continuity testing on the molded case circuit breaker. At the same time, the opening and closing force testing mechanism performs opening and closing force testing on the molded case circuit breaker.

[0055] The tripping force testing mechanism tests the tripping force of the molded case circuit breaker;

[0056] The push rod force detection mechanism performs push rod force detection on the molded case circuit breaker;

[0057] Test complete.

[0058] The beneficial effects of this invention are as follows:

[0059] This invention provides a testing device for molded case circuit breakers, including a workbench, a conveying mechanism, a lifting mechanism, a continuity testing mechanism, a tripping force testing mechanism, a push rod force testing mechanism, and a closing force testing mechanism. It can realize integrated automatic testing of product continuity, tripping force, push rod force, and closing force. That is, the product can be tested for four functions in one clamping, and the testing efficiency is high.

[0060] The above-mentioned molded case circuit breaker testing device has a simple structure, and the test data can be summarized in real time and automatically exported, with a high degree of automation.

[0061] By setting up a continuity testing mechanism for flexible clamping of molded case circuit breakers, the above-mentioned molded case circuit breaker testing device can be applied to molded case circuit breakers of different specifications, thereby improving the versatility of the above-mentioned molded case circuit breaker testing device. Attached Figure Description

[0062] Figure 1 A partial schematic diagram of a molded case circuit breaker detection device from a first perspective, provided in an embodiment of the present invention;

[0063] Figure 2 This is a partial schematic diagram of a molded case circuit breaker detection device from a second perspective, provided in an embodiment of the present invention.

[0064] Figure 3 This is a schematic diagram of the structure of the workbench provided in an embodiment of the present invention;

[0065] Figure 4This is a schematic diagram of the lifting mechanism provided in an embodiment of the present invention;

[0066] Figure 5 This is a schematic diagram of the structure of the end bearing member provided in an embodiment of the present invention;

[0067] Figure 6 This is a schematic diagram of the continuity detection mechanism provided in an embodiment of the present invention;

[0068] Figure 7 This is a schematic diagram of the structure of the electrode module provided in an embodiment of the present invention;

[0069] Figure 8 This is a schematic diagram of the tripping force detection mechanism provided in an embodiment of the present invention;

[0070] Figure 9 This is a schematic diagram of the push rod force detection mechanism provided in an embodiment of the present invention;

[0071] Figure 10 This is a schematic diagram of the opening and closing force detection mechanism provided in an embodiment of the present invention;

[0072] Figure 11 A flowchart of a method for testing molded case circuit breakers provided in an embodiment of the present invention.

[0073] In the picture:

[0074] 100. Workbench; 110. Support plate; 111. Clearance hole; 120. Support column; 130. Support base; 140. First connecting plate; 150. Fixing plate;

[0075] 200. Conveying mechanism;

[0076] 300. Lifting mechanism; 310. Mounting base plate; 320. Fourth drive component; 330. Moving base plate; 340. End bearing component; 341. Boss; 350. Linear bearing; 360. Guide shaft; 370. First connecting column; 380. Second connecting column;

[0077] 400. Continuity detection mechanism; 410. Guide section; 411. First guide plate; 412. Second guide plate; 413. Third guide plate; 414. Fourth guide plate; 420. Receiving cavity; 430. First driving component; 440. Electrode module; 441. Base; 4411. Mounting groove; 442. Electrode; 4421. Arc surface; 4422. Connecting hole; 443. Reset elastic component; 444. Rotating shaft; 450. Limiting block;

[0078] 500. Tripping force detection mechanism; 510. Y-axis moving assembly; 511. Fifth driving component; 512. Third guide rail; 513. Third slider; 520. Z-axis moving assembly; 530. Tripping rod; 540. First force sensor; 550. Second connecting plate; 560. Third connecting plate; 570. Mounting component;

[0079] 600, Push rod force detection mechanism; 610, Second driving component; 620, Connecting component; 630, Push rod; 640, Second force sensor; 650, First guide rail; 660, First slider; 670, Fourth connecting plate;

[0080] 700. Opening and closing force detection mechanism; 710. Third driving component; 720. Mounting plate; 721. First connecting part; 722. Second connecting part; 730. Opening component; 740. Third force sensor; 750. Closing component; 760. Fourth force sensor; 770. Second guide rail; 780. Second slider;

[0081] 800. Molded case circuit breaker. Detailed Implementation

[0082] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0083] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0084] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0085] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0086] This invention provides a testing device for molded case circuit breakers, which can realize integrated automatic testing of more than 800 performance characteristics of molded case circuit breakers with high testing efficiency.

[0087] Specifically, such as Figure 1 and Figure 2 As shown, the molded case circuit breaker testing device includes a workbench 100, a conveying mechanism 200, a lifting mechanism 300, a continuity testing mechanism 400, a tripping force testing mechanism 500, a push rod force testing mechanism 600, and a closing and opening force testing mechanism 700. The workbench 100 remains stationary during operation. The conveying mechanism 200 is located below the workbench 100 and is used to convey the molded case circuit breaker 800 to the testing station. In this embodiment, the conveying mechanism 200 is a chain conveyor. In other embodiments, the conveying mechanism 200 can also be other structures, such as a belt conveyor, depending on actual needs. The lifting mechanism 300 is located below the workbench 100 and can lift the molded case circuit breaker 800 located at the testing station to the testing station, and place the tested molded case circuit breaker 800 onto the conveying mechanism 200. The continuity testing mechanism 400, tripping force testing mechanism 500, push rod force testing mechanism 600, and opening / closing force testing mechanism 700 are all mounted on the workbench 100. The continuity testing mechanism 400 performs continuity testing on the molded case circuit breaker 800 located at the test station; the tripping force testing mechanism 500 performs tripping force testing on the molded case circuit breaker 800 located at the test station; the push rod force testing mechanism 600 performs push rod force testing on the molded case circuit breaker 800 located at the test station; and the opening / closing force testing mechanism 700 performs opening / closing force testing on the molded case circuit breaker 800 located at the test station. These molded case circuit breaker 800 testing mechanisms can test four functions of the molded case circuit breaker 800, resulting in high testing efficiency.

[0088] Furthermore, in this embodiment, as Figure 1-3 As shown, the workbench 100 includes a support plate 110, and a continuity detection mechanism 400, a tripping force detection mechanism 500, a push rod force detection mechanism 600, and a closing force detection mechanism 700 are all mounted on the support plate 110. The support plate 110 is provided with a clearance hole 111, through which the tripping force detection mechanism 500 and the closing force detection mechanism 700 can pass to perform tripping force detection and closing force detection on the molded case circuit breaker 800.

[0089] Preferably, the workbench 100 further includes support columns 120 and fixing plates 150. One end of the support column 120 is fixedly connected to the lower end face of the bearing plate 110, and the other end is fixedly connected to the fixing plate 150. By setting the support column 120 and fixing plate 150, the structural stability of the workbench 100 can be improved, preventing the bearing plate 110 from shaking during operation, and improving the working reliability of the above-mentioned molded case circuit breaker testing device. Optionally, multiple support columns 120 can be provided. In this embodiment, four support columns 120 are provided, and the four support columns 120 are respectively set at the four corners of the bearing plate 110. In other embodiments, the arrangement and number of support columns 120 can also be other, depending on actual needs.

[0090] Preferably, the workbench 100 further includes a support base 130, which is disposed between the support column 120 and the fixed plate 150. Specifically, one end of the support base 130 is connected to the support column 120, and the other end is connected to the fixed plate 150. By providing the support base 130, the connection strength between the support column 120 and the fixed plate 150 can be improved, thereby enhancing the structural stability of the workbench 100.

[0091] More preferably, a first connecting plate 140 is provided between the support base 130 and the fixed plate 150. Specifically, the support base 130 is connected to the first connecting plate 140, and the first connecting plate 140 is connected to the fixed plate 150. By providing the first connecting plate 140 to connect the support base 130 and the fixed plate 150, the connection area between the support base 130 and the fixed plate 150 is increased, the connection strength between the support base 130 and the fixed plate 150 is improved, and thus the structural stability of the workbench 100 is further improved.

[0092] Furthermore, such as Figure 4As shown, the lifting mechanism 300 includes a mounting base plate 310, a fourth drive component 320, a moving base plate 330, and an end support component 340. The mounting base plate 310 is connected to the worktable 100 and remains stationary with the worktable 100 during operation. The fixed end of the fourth drive component 320 is fixedly connected to the mounting base plate 310, and its output end is driven by the moving base plate 330, enabling the fourth drive component 320 to drive the moving base plate 330 to move vertically. The end support component 340 is fixedly connected to the moving base plate 330. When the output end of the fourth drive component 320 extends, the end support component 340 lifts the molded case circuit breaker 800 to the testing position. When the output end of the fourth drive component 320 retracts, the end support component 340 places the molded case circuit breaker 800 onto the conveying mechanism 200, thus realizing the loading and unloading of the molded case circuit breaker 800. The fourth drive component 320 can be a cylinder, an electric cylinder, or other mechanism capable of outputting linear motion, and can be set according to actual needs.

[0093] Furthermore, the end support member 340 is connected to the moving base plate 330 through the first connecting post 370. Specifically, one end of the first connecting post 370 is connected to the end support member 340, and the other end is connected to the upper surface of the moving base plate 330. The end support member 340 is used to support the molded case circuit breaker 800.

[0094] Optionally, in this embodiment, four first connecting posts 370 are provided, and the four first connecting posts 370 are arranged at the four corners of the moving base plate 330. In other embodiments, the number and arrangement of the first connecting posts 370 can also be other, depending on actual needs.

[0095] Optionally, in this embodiment, two end bearing members 340 are provided, and the two end bearing members 340 are arranged on opposite sides of the moving base plate 330. Each end bearing member 340 is connected to two first connecting posts 370. In other embodiments, the number and arrangement of the end bearing members 340 can also be other, depending on actual needs.

[0096] Preferably, such as Figure 5 As shown, the edge of the end support 340 is provided with a boss 341, which can abut against the housing of the molded case circuit breaker 800 to prevent the molded case circuit breaker 800 from falling during the process of being lifted to the test position and falling back to the conveying mechanism 200, thereby improving the reliability of the lifting mechanism 300.

[0097] Optionally, in this embodiment, see also: Figure 2 and Figure 4The mounting base plate 310 is connected to the fixing plate 150 of the workbench 100 via second connecting posts 380. Specifically, one end of the second connecting post 380 is connected to the mounting base plate 310, and the other end is connected to the fixing plate 150. In this embodiment, four second connecting posts 380 are provided, and the four second connecting posts 380 are arranged at the four corners of the mounting base plate 310. In other embodiments, the number and arrangement of the second connecting posts 380 can also be different, depending on actual needs.

[0098] Preferably, see continue to see Figure 4 The lifting mechanism 300 also includes a linear bearing 350 and a guide shaft 360. The linear bearing 350 is mounted on the mounting base plate 310. One end of the guide shaft 360 is fixedly connected to the lower end face of the moving base plate 330, and the other end slides through the linear bearing 350. The guide shaft 360 guides the movement of the moving base plate 330, improving the stability and reliability of the vertical movement of the moving base plate 330.

[0099] Optionally, in this embodiment, four guide shafts 360 are provided, and the four guide shafts 360 are arranged at the four corners of the mounting base plate 310. In other embodiments, the number and arrangement of the guide shafts 360 can also be other, depending on actual needs.

[0100] Furthermore, such as Figure 6As shown, the continuity testing mechanism 400 can perform positioning, clamping, and continuity testing of the molded case circuit breaker 800. The continuity testing mechanism 400 includes a guide section 410, a first driving component 430, and two electrode modules 440. The guide section 410 includes a first guide plate 411, a second guide plate 412, a third guide plate 413, and a fourth guide plate 414, which are connected end-to-end to form a receiving cavity 420. When the molded case circuit breaker 800 is in the testing position, a portion of the molded case circuit breaker 800 is located within the receiving cavity 420. By providing the guide section 410, the molded case circuit breaker 800 can be guided into the testing position. The fixed end of the first driving member 430 is fixedly connected to the first guide plate 411, and the output end of the first driving member 430 slides through the first guide plate 411. The output end of the first driving member 430 can abut against the side wall of the molded case circuit breaker 800 and push the molded case circuit breaker 800 to abut against the third guide plate 413, thereby fixing the molded case circuit breaker 800 between the output end of the first driving member 430 and the third guide plate 413. The first guide plate 411 and the third guide plate 413 are arranged opposite to each other. By setting the first driving member 430 and the guide part 410, the molded case circuit breaker 800 is clamped and positioned, making the above-mentioned molded case circuit breaker testing device applicable to molded case circuit breakers 800 of different specifications, thus improving the universality of the above-mentioned molded case circuit breaker testing device. Two electrode modules 440 are respectively disposed on the second guide plate 412 and the fourth guide plate 414. One of the two electrode modules 440 can be electrically connected to the input terminal of the molded case circuit breaker 800, and the other can be electrically connected to the output terminal of the molded case circuit breaker 800. The two electrode modules 440 are electrically connected so that they can form a conductive circuit with the molded case circuit breaker 800, and then perform a continuity test on the molded case circuit breaker 800 according to the control signal. In this embodiment, the guide part 410 is fixedly connected to the lower end face of the support plate 110. The first driving member 430 can be a cylinder, electric cylinder, or other mechanism capable of outputting linear motion, which can be set according to actual needs.

[0101] Preferably, see continue to see Figure 6 Inside the cavity 420, a limiting block 450 is provided on the lower end face of the bearing plate 110. The limiting block 450 can abut against the molded case circuit breaker 800 to restrict the molded case circuit breaker 800 from continuing to move upward, ensuring that the molded case circuit breaker 800 can be stably placed at the test position, which is beneficial to improving the accuracy of the measurement results of the molded case circuit breaker 800.

[0102] Furthermore, such as Figure 7As shown, the electrode module 440 includes a base 441, multiple electrodes 442, and a reset elastic element 443. The base 441 has multiple mounting slots 4411, which are spaced apart along the length of the base 441. The number of electrodes 442 is the same as the number of mounting slots 4411, and each electrode 442 corresponds to one mounting slot 4411. A portion of one electrode 442 is installed in one mounting slot 4411. The electrode 442 is rotatably connected to the base 441, and one end of the electrode 442 can be electrically connected to an inlet terminal block or an outlet terminal block. During the process of lifting the molded case circuit breaker 800 to the test position by the lifting mechanism 300, the inlet and outlet terminals of the molded case circuit breaker 800 will come into contact with the electrode 442 to achieve electrical connection. Then the molded case circuit breaker 800 continues to move upward. At this time, the electrode 442 maintains electrical connection with the inlet and outlet terminals of the molded case circuit breaker 800. The reset elastic element 443 is stretched. Under the action of the elastic restoring force of the reset elastic element 443, the electrode 442 can maintain a reliable electrical connection with the inlet and outlet terminals of the molded case circuit breaker 800. In addition, by setting the reset elastic element 443, the problem of inconsistent height of the inlet and outlet terminals of molded case circuit breakers 800 of different specifications can also be solved, thereby improving the universality of the above-mentioned molded case circuit breaker testing device.

[0103] Optionally, a rotating shaft 444 is provided between the electrode 442 and the base 441. Specifically, both ends of the rotating shaft 444 are fixedly connected to the base 441, and the electrode 442 passes through the rotating shaft 444 and is rotatably connected to the rotating shaft 444.

[0104] Preferably, the end of electrode 442 that is electrically connected to the molded case circuit breaker 800 has an arc surface 4421 to prevent the electrode 442 from making hard contact with the molded case circuit breaker 800 and damaging the inlet and outlet terminals of the molded case circuit breaker 800. The end of electrode 442 that is not electrically connected to the molded case circuit breaker 800 has a connection hole 4422. The two ends of the test wire are respectively connected to the connection holes 4422 of the two electrode modules 440, thereby realizing the electrical connection between the two electrode modules 440.

[0105] Furthermore, such as Figure 8As shown in the figure, the trip force detection mechanism 500 includes a Y-direction moving component 510, a Z-direction moving component 520, a trip lever 530, and a first force sensor 540. Among them, the Y-direction moving component 510 is arranged on the upper end surface of the workbench 100. In this embodiment, it is arranged on the upper end surface of the carrier plate 110. The Y-direction moving component 510 is drivingly connected to the Z-direction moving component 520, and the Y-direction moving component 510 can drive the Z-direction moving component 520 to move along the Y-axis direction. The Z-direction moving component 520 is drivingly connected to the trip lever 530, and the Z-direction moving component 520 can drive the trip lever 530 to move along the Z-axis direction. By arranging the Y-direction moving component 510 and the Z-direction moving component 520, the trip lever 530 can be moved along the Y-axis direction and the Z-axis direction, so that the trip lever 530 can contact the trip switch of the molded case circuit breaker 800 and push the trip switch to move to achieve tripping, making the trip force detection mechanism 500 compatible with the different positions of the trip switches of molded case circuit breakers 800 with different specifications and having high flexibility in use. The first force sensor 540 is arranged between the Z-direction moving component 520 and the trip lever 530, and is used to collect the trip force information on the trip lever 530. If the collected trip force information is the same as the system set value, it is a qualified product; if the collected trip force information is different from the system set value, it is an unqualified product. By arranging the first force sensor 540 between the Z-direction moving component 520 and the trip lever 530, the first force sensor 540 can directly collect the trip force without interference from other factors, improving the accuracy of the detection result of the trip force detection mechanism 500.

[0106] Optionally, the Y-direction moving component 510 is connected to the Z-direction moving component 520 through a second connecting plate 550. Specifically, one end of the second connecting plate 550 is connected to the Y-direction moving component 510, and the other end is connected to the Z-direction moving component 520. The Y-direction moving component 510 can drive the second connecting plate 550 to move along the Y-axis direction.

[0107] Further, the Y-direction moving component 510 includes a fifth driving member 511 and a third guide rail 512. The fixed end of the fifth driving member 511 is fixedly connected to the workbench 100. In this embodiment, the fixed end of the fifth driving member 511 is fixedly connected to the upper end surface of the carrier plate 110. The output end of the fifth driving member 511 is connected to the second connecting plate 550. The second connecting plate 550 is slidably connected to the third guide rail 512. The third guide rail 512 is connected to the upper end surface of the carrier plate 110 and extends along the Y-axis direction. The fifth driving member 511 can be a cylinder, an electric cylinder, or other mechanisms that can output linear motion, and can be set according to actual needs.

[0108] Optionally, a third slider 513 is provided between the second connecting plate 550 and the third guide rail 512. The third slider 513 is fixedly connected to the second connecting plate 550 and slidably connected to the third guide rail 512. By providing the third slider 513, the smoothness and stability of the sliding connection between the second connecting plate 550 and the third guide rail 512 are improved.

[0109] Optionally, the Z-axis moving component 520 can be a cylinder, an electric cylinder, or other mechanism capable of outputting linear motion, depending on actual needs. Specifically, the fixed end of the Z-axis moving component 520 is fixedly connected to the second connecting plate 550, and the output end of the Z-axis moving component 520 can move along the Z-axis direction.

[0110] Optionally, a third connecting plate 560 is provided between the Z-axis moving component 520 and the first force sensor 540. Specifically, the third connecting plate 560 is connected to the output end of the Z-axis moving component 520, and the first force sensor 540 is disposed on the third connecting plate 560. By providing the third connecting plate 560, the connection strength between the Z-axis moving component 520 and the first force sensor 540 is improved.

[0111] Preferably, the tripping force detection mechanism 500 further includes a mounting member 570, which is connected to the side of the first force sensor 540 that is not connected to the third connecting plate 560. A tripping rod 530 is disposed on the mounting member 570. To accommodate the different tripping positions of molded case circuit breakers 800 of different specifications, in this embodiment, the mounting member 570 includes a first mounting position and a second mounting position, and two tripping rods 530 are provided, each connected to the first mounting position and the second mounting position respectively. In other embodiments, the structure of the mounting member 570 can also be different, depending on actual needs.

[0112] Furthermore, such as Figure 9As shown, the push rod force detection mechanism 600 includes a second driving member 610, a connecting member 620, a push rod 630, and a second force sensor 640. The fixed end of the second driving member 610 is fixedly connected to the lower end face of the worktable 100; in this embodiment, the fixed end of the second driving member 610 is fixedly connected to the lower end face of the support plate 110. The output end of the second driving member 610 is drivenly connected to the connecting member 620, enabling the second driving member 610 to drive the connecting member 620 to move. One end of the push rod 630 is driveably connected to the connecting member 620, and the other end can contact the push rod of the molded case circuit breaker 800, pushing the push rod to move. The second force sensor 640 is disposed between the connecting member 620 and the push rod 630, and is used to collect push rod force information on the push rod 630. During testing, the second driving component 610 drives the connecting component 620 to move. The movement of the connecting component 620 drives the second force sensor 640 connected to it to move. The movement of the second force sensor 640 drives the push rod 630 connected to it to move. The movement of the push rod 630 can push the push rod of the molded case circuit breaker 800. When the push rod moves to its position, the second force sensor 640 tests the push rod force of the push rod 630. By placing the second force sensor 640 between the connecting component 620 and the push rod 630, direct detection of the push rod force is achieved, avoiding environmental interference and improving the accuracy of data acquisition. The second driving component 610 can be a cylinder, electric cylinder, or other mechanism capable of outputting linear motion, depending on actual needs.

[0113] Optionally, the fixed end of the second driving member 610 is fixedly connected to the lower end face of the support plate 110 via a fourth connecting plate 670. Specifically, the end face of the fourth connecting plate 670 is connected to the fixed end of the second driving member 610, and the side face of the fourth connecting plate 670 is fixedly connected to the support plate 110. By providing the fourth connecting plate 670, the connection strength between the second driving member 610 and the support plate 110 is improved.

[0114] Preferably, the output end of the second drive member 610 is floatingly connected to the connector 620 through a floating joint, which can prevent the connector 620 from getting stuck during movement.

[0115] Preferably, the push rod force detection mechanism 600 further includes a first guide rail 650, which is fixedly connected to the lower end face of the worktable 100. Specifically, in this embodiment, the first guide rail 650 is fixedly connected to the lower end face of the support plate 110 and extends along the movement direction of the output end of the second drive member 610. The connecting member 620 is slidably connected to the first guide rail 650. By setting the first guide rail 650, the stability of the movement of the connecting member 620 can be improved, thereby improving the stability of the movement of the push rod 630. Optionally, a first slider 660 is provided between the connecting member 620 and the first guide rail 650. Specifically, the connecting member 620 is fixedly connected to the first slider 660, and the first slider 660 is slidably connected to the first guide rail 650. By setting the first slider 660, the smoothness and stability of the sliding between the connecting member 620 and the first guide rail 650 are improved.

[0116] Furthermore, such as Figure 10 As shown, the opening and closing force detection mechanism 700 includes a third driving component 710, a mounting plate 720, a opening component 730, a third force sensor 740, a closing component 750, and a fourth force sensor 760. The fixed end of the third driving component 710 is fixedly connected to the upper surface of the workbench 100. Specifically, in this embodiment, the fixed end of the third driving component 710 is fixedly connected to the upper surface of the support plate 110. The third driving component 710 can be a cylinder, an electric cylinder, or other mechanism capable of outputting linear motion, depending on actual needs. The output end of the third driving component 710 is drivenly connected to the mounting plate 720, enabling the third driving component 710 to drive the mounting plate 720 to move. The mounting plate 720 includes a first connecting portion 721 and a second connecting portion 722. The opening component 730 is connected to the first connecting portion 721, and the third force sensor 740 is disposed between the first connecting portion 721 and the opening component 730 to collect opening force information on the opening component 730. By placing the third force sensor 740 between the first connecting part 721 and the opening member 730, the opening force information of the opening member 730 can be directly collected, avoiding environmental interference and improving the accuracy of data acquisition. The closing member 750 is connected to the second connecting part 722, and the fourth force sensor 760 is placed between the second connecting part 722 and the closing member 750 to collect the closing force information on the closing member 750. By placing the fourth force sensor 760 between the second connecting part 722 and the closing member 750, the closing force information of the closing member 750 can be directly collected, avoiding environmental interference and improving the accuracy of data acquisition. When the output end of the third driving member 710 extends, the opening member 730 contacts the handle of the molded case circuit breaker 800 and pushes the handle to complete the opening action. When the output end of the third driving member 710 retracts, the closing member 750 contacts the handle and pushes the handle to complete the closing action.

[0117] Preferably, the opening and closing force detection mechanism 700 further includes a second guide rail 770, which is fixedly connected to the upper end face of the workbench 100. Specifically, in this embodiment, the second guide rail 770 is fixedly connected to the upper end face of the support plate 110 and extends along the movement direction of the output end of the third drive member 710. The mounting plate 720 is slidably connected to the second guide rail 770. By setting the second guide rail 770, the stability of the movement of the mounting plate 720 can be improved, thereby improving the stability of the movement of the closing member 750 and the opening member 730. Optionally, a second slider 780 is provided between the mounting plate 720 and the second guide rail 770. Specifically, the mounting plate 720 is fixedly connected to the second slider 780, and the second slider 780 is slidably connected to the second guide rail 770. By setting the second slider 780, the smoothness and stability of the sliding between the mounting plate 720 and the second guide rail 770 are improved.

[0118] Optionally, see [link to relevant documentation] Figure 10 In this embodiment, the first connecting portion 721 and the second connecting portion 722 are disposed opposite to each other. In other embodiments, the first connecting portion 721 and the second connecting portion 722 may be disposed in other ways, depending on actual needs.

[0119] Preferably, the heads of the opening component 730 and the closing component 750 are semi-circular arc-shaped, which can prevent the handle from being damaged when the opening component 730 and the closing component 750 come into contact with the handle.

[0120] The molded case circuit breaker testing device provided in this application can realize integrated automatic testing of the on / off, tripping force, push rod force and opening / closing force of the molded case circuit breaker 800. It has high testing efficiency, simple structure, can realize real-time summary of test data, and is compatible with different specifications of molded case circuit breakers 800, thus having high versatility.

[0121] This invention also provides a method for testing molded case circuit breakers, which is based on the above-mentioned molded case circuit breaker testing device, such as... Figure 11 As shown, it includes the following steps:

[0122] S100. Adjust the initial positions of the continuity detection mechanism 400, tripping force detection mechanism 500, push rod force detection mechanism 600, and opening / closing force detection mechanism 700 according to the specifications of the molded case circuit breaker 800.

[0123] Specifically, the operator inputs the specifications of the molded case circuit breaker 800 to be tested into the control system. The system automatically adjusts the initial positions of each test component in the testing device according to the specifications of the molded case circuit breaker 800.

[0124] S200 and conveyor 200 transport the molded case circuit breaker 800 to the test station;

[0125] S300 and lifting mechanism 300 lift the molded case circuit breaker 800 to the test position and maintain the lifted state;

[0126] Specifically, the output end of the fourth drive unit 320 remains extended.

[0127] S400 and the continuity detection mechanism 400 clamp and fix the molded case circuit breaker 800. The continuity detection mechanism 400 performs continuity detection on the molded case circuit breaker 800. At the same time, the opening and closing force detection mechanism 700 performs opening and closing force detection on the molded case circuit breaker 800. The specific steps are as follows:

[0128] S410. After the molded case circuit breaker 800 is lifted to the test position, the first drive component 430 is activated, pressing the right side of the molded case circuit breaker 800 against the third guide plate 413. Furthermore, under the action of the reset elastic component 443, the electrode 442 automatically contacts and conducts electricity with the inlet and outlet terminals of the molded case circuit breaker 800, forming a conductive circuit.

[0129] S420 and the third driving unit 710 repeatedly drive the opening unit 730 and the closing unit 750 to perform opening and closing operations. At the same time as each opening and closing operation, the electrode module 440 performs on / off detection on the molded case circuit breaker 800, the third force sensor 740 detects the opening force, and the fourth force sensor 760 detects the closing force.

[0130] Specifically, if the circuit of the molded case circuit breaker 800 is not connected in the closed state or in the open state, it indicates that the continuity test of the molded case circuit breaker 800 is abnormal and the molded case circuit breaker 800 needs to be repaired. At this time, the test is stopped and the molded case circuit breaker 800 is automatically discharged as a defective product. Otherwise, the molded case circuit breaker 800 passes the continuity test.

[0131] Furthermore, during the switching test, the opening and closing force is tested while the molded case circuit breaker 800 is repeatedly operated to open and close. When the opening element 730 and closing element 750 contact the handle and perform opening and closing operations, the third force sensor 740 and the fourth force sensor 760 automatically test the opening and closing force, and the system automatically records the force values. Based on the comparison between the tested force values ​​and the set force values, unqualified molded case circuit breakers 800 are automatically eliminated, while qualified molded case circuit breakers 800 proceed to the next test.

[0132] S430. After completing the continuity test and the opening and closing force test, the lifting mechanism 300 places the unqualified molded case circuit breaker 800 on the conveying mechanism 200, and the unqualified discharge mechanism on the conveying mechanism 200 automatically discharges it, and the qualified molded case circuit breaker 800 enters the next test.

[0133] S440 and the third drive unit 710 drive the closing unit 750 to push the handle of the molded case circuit breaker 800 to the closing position.

[0134] S500 and tripping force testing mechanism 500 perform tripping force testing on molded case circuit breaker 800. The specific steps are as follows:

[0135] S510, the Y-axis moving component 510 drives the Z-axis moving component 520 to the first designated position, the Z-axis moving component 520 drives the trip rod 530 to contact the trip switch of the molded case circuit breaker 800 and complete the tripping operation. At the same time, the first force sensor 540 detects the tripping force of the trip rod 530.

[0136] Specifically, after the trip lever 530 moves to the trip position, which trip lever 530 is used for tripping depends on the tripping position of the molded case circuit breaker 800. The two trip levers 530 will not trip the molded case circuit breaker 800 simultaneously. The system automatically eliminates defective products by comparing the tripping force test value with the set value, and allows qualified products to proceed to the next test.

[0137] S520. After the tripping force test is completed, the lifting mechanism 300 places the unqualified molded case circuit breaker 800 on the conveying mechanism 200, and the unqualified circuit breaker 800 is automatically discharged by the defect removal mechanism. The qualified molded case circuit breaker 800 enters the next test.

[0138] S530 and the third drive unit 710 drive the closing unit 750 to push the handle to the closing position;

[0139] S600 and push rod force detection mechanism 600 perform push rod force detection on molded case circuit breaker 800. The specific steps are as follows:

[0140] S610, the second driving member 610 drives the push rod 630 to the second designated position and makes the push rod 630 press against the push rod of the molded case circuit breaker 800 until the molded case circuit breaker 800 trips. At the same time, the second force sensor 640 detects the push rod force of the push rod 630.

[0141] S620. After the push rod force test is completed, the lifting mechanism 300 places the unqualified molded case circuit breaker 800 on the conveying mechanism 200, and the unqualified mechanism automatically discharges it, while the qualified molded case circuit breaker 800 enters the next process.

[0142] S700, test complete.

[0143] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A testing device for molded case circuit breakers, characterized in that, include: Workbench (100); A conveying mechanism (200) is provided below the workbench (100) for conveying the molded case circuit breaker (800) to the test station; A lifting mechanism (300) is provided below the workbench (100). The lifting mechanism (300) can lift the molded case circuit breaker (800) located at the test station to the test station and place the tested molded case circuit breaker (800) on the conveying mechanism (200). A continuity testing mechanism (400) is provided on the workbench (100). The continuity testing mechanism (400) can fix the molded case circuit breaker (800) and perform continuity testing on the molded case circuit breaker (800) located at the test station. A tripping force testing mechanism (500) is provided on the workbench (100), and the tripping force testing mechanism (500) is capable of testing the tripping force of the molded case circuit breaker (800) located at the test station; A push rod force detection mechanism (600) is provided on the workbench (100). The push rod force detection mechanism (600) is capable of detecting the push rod force of the molded case circuit breaker (800) located at the test station. The opening and closing force detection mechanism (700) is set on the workbench (100). The opening and closing force detection mechanism (700) can detect the opening and closing force of the molded case circuit breaker (800) located at the test station. The opening and closing force detection mechanism (700) includes: The third driving member (710) has its fixed end fixedly connected to the upper end face of the worktable (100); Mounting plate (720), the output end of the third driving member (710) is driven to the mounting plate (720), the third driving member (710) can drive the mounting plate (720) to move, the mounting plate (720) includes a first connecting part (721) and a second connecting part (722); The tripping component (730) is connected to the first connecting part (721); A third force sensor (740) is disposed between the first connecting part (721) and the tripping component (730) for collecting tripping force information on the tripping component (730); The closing component (750) is connected to the second connecting part (722); A fourth force sensor (760) is disposed between the second connecting part (722) and the closing member (750) for collecting closing force information on the closing member (750); When the output end of the third drive unit (710) extends, the tripping unit (730) contacts the handle of the molded case circuit breaker (800) and pushes the handle to complete the tripping action. When the output end of the third drive unit (710) retracts, the closing unit (750) contacts the handle and pushes the handle to complete the closing action.

2. The molded case circuit breaker testing device according to claim 1, characterized in that, The continuity detection mechanism (400) includes: The guide part (410) is fixedly connected to the lower end face of the workbench (100). The guide part (410) includes a first guide plate (411), a second guide plate (412), a third guide plate (413), and a fourth guide plate (414). The first guide plate (411), the second guide plate (412), the third guide plate (413), and the fourth guide plate (414) are connected end to end to form a receiving cavity (420). When the molded case circuit breaker (800) is located at the test station, part of the molded case circuit breaker (800) is located in the receiving cavity (420). The first driving member (430) has a fixed end that is fixedly connected to the first guide plate (411). The output end of the first driving member (430) slides through the first guide plate (411). The output end of the first driving member (430) can abut against the side wall of the molded case circuit breaker (800) and push the molded case circuit breaker (800) to abut against the third guide plate (413) to fix the molded case circuit breaker (800) between the output end of the first driving member (430) and the third guide plate (413). The first guide plate (411) and the third guide plate (413) are arranged opposite to each other. Two electrode modules (440) are respectively disposed on the second guide plate (412) and the fourth guide plate (414). One of the two electrode modules (440) can be electrically connected to the inlet terminal of the molded case circuit breaker (800), and the other can be electrically connected to the outlet terminal of the molded case circuit breaker (800). The two electrode modules (440) are electrically connected so that the two electrode modules (440) can form a conductive circuit with the molded case circuit breaker (800).

3. The molded case circuit breaker testing device according to claim 2, characterized in that, The electrode module (440) includes: A base (441) is provided with a plurality of mounting slots (4411), which are spaced apart along the length of the base (441). Multiple electrodes (442) are provided, each corresponding to a mounting groove (4411). Each electrode (442) is rotatably connected to a base (441), and one end of each electrode (442) can be electrically connected to the inlet or outlet terminal. A reset elastic element (443) is disposed between the electrode (442) and the bottom wall of the mounting groove (4411). One end of the reset elastic element (443) is connected to the electrode (442), and the other end is connected to the bottom wall of the mounting groove (4411).

4. The molded case circuit breaker testing device according to claim 1, characterized in that, The tripping force testing mechanism (500) includes: A Y-axis moving component (510) is disposed on the upper end face of the worktable (100); Z-axis moving component (520), Y-axis moving component (510) is drivenly connected to Z-axis moving component (520), Y-axis moving component (510) can drive Z-axis moving component (520) to move along Y-axis direction; The trip lever (530) is driven to be connected to the Z-axis moving component (520). The Z-axis moving component (520) can drive the trip lever (530) to move along the Z-axis direction. The trip lever (530) can contact the trip switch of the molded case circuit breaker (800) and push the trip switch to move. A first force sensor (540) is disposed between the Z-axis moving component (520) and the trip lever (530) for collecting trip force information on the trip lever (530).

5. The molded case circuit breaker testing device according to claim 1, characterized in that, The push rod force detection mechanism (600) includes: The second driving member (610) has its fixed end fixedly connected to the lower end face of the worktable (100). The connector (620) is driven to the output end of the second drive member (610), and the second drive member (610) can drive the connector (620) to move. The push rod (630) has one end connected to the connector (620) for transmission, and the other end can contact the push rod of the molded case circuit breaker (800) and push the push rod to move; A second force sensor (640) is disposed between the connector (620) and the push rod (630) for collecting push rod force information on the push rod (630).

6. The molded case circuit breaker testing device according to claim 5, characterized in that, The push rod force detection mechanism (600) also includes: The first guide rail (650) is fixedly connected to the lower end face of the worktable (100) and extends along the movement direction of the output end of the second drive member (610). The connecting member (620) is slidably connected to the first guide rail (650).

7. The molded case circuit breaker testing device according to claim 1, characterized in that, The opening and closing force detection mechanism (700) also includes: The second guide rail (770) is fixedly connected to the upper end face of the worktable (100) and extends along the movement direction of the output end of the third drive member (710). The mounting plate (720) is slidably connected to the second guide rail (770).

8. The testing device for molded case circuit breakers according to any one of claims 1-7, characterized in that, The lifting mechanism (300) includes: Mounting base plate (310) is connected to the worktable (100); The fourth driving component (320) is fixedly connected to the mounting base plate (310) at its fixed end. The fourth driving member (320) has its output end passing through the mounting base plate (310) and drivingly connected to the moving base plate (330). The fourth driving member (320) can drive the moving base plate (330) to move in the vertical direction. The end support member (340) is fixedly connected to the moving base plate (330). When the output end of the fourth drive member (320) extends, the end support member (340) lifts the molded case circuit breaker (800) to the test station. When the output end of the fourth drive member (320) retracts, the end support member (340) places the molded case circuit breaker (800) on the conveying mechanism (200).

9. A method for testing molded case circuit breakers, wherein the method is implemented based on the molded case circuit breaker testing device according to any one of claims 1-8, characterized in that, Includes the following steps: Adjust the initial positions of the continuity detection mechanism (400), tripping force detection mechanism (500), push rod force detection mechanism (600), and opening and closing force detection mechanism (700) according to the specifications of the molded case circuit breaker (800); The conveying mechanism (200) conveys the molded case circuit breaker (800) to the test station; The lifting mechanism (300) lifts the molded case circuit breaker (800) to the test station and maintains the lifted state; The continuity detection mechanism (400) clamps and fixes the molded case circuit breaker (800), and the continuity detection mechanism (400) performs continuity detection on the molded case circuit breaker (800). At the same time, the opening and closing force detection mechanism (700) performs opening and closing force detection on the molded case circuit breaker (800). The tripping force testing mechanism (500) performs tripping force testing on the molded case circuit breaker (800); The push rod force detection mechanism (600) performs push rod force detection on the molded case circuit breaker (800); Test complete.

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