A fully automatic variable-distance low-voltage insulation tester

Abstract

The embodiment of the present application proposes a fully automatic variable pitch low-voltage insulation tester, including: a frame, a probe variable pitch mechanism, a lifting mechanism, an X-direction adjustment mechanism, and a Y-direction adjustment mechanism; wherein, an X-direction adjustment mechanism is installed on the top of the frame, and a Y-direction adjustment mechanism is connected to the X-direction adjustment mechanism, and the X-direction adjustment mechanism and the Y-direction adjustment mechanism are arranged perpendicular to each other; a lifting mechanism is connected to the Y-direction adjustment mechanism; a probe variable pitch mechanism is installed on the lifting mechanism, and a plurality of probe blocks with rectangular arrangement and adjustable spacing in the X and Y directions are installed at the bottom of the probe variable pitch mechanism; two detection probes are installed at the bottom of the plurality of probe blocks; and a side probe piece is installed on the frame. The fully automatic variable pitch low-voltage insulation tester of the embodiment of the present application adjusts the spacing of a plurality of probe blocks in the X and Y directions through the probe variable pitch mechanism, thereby realizing automatic adjustment of the detection probe distance and achieving the purpose of rapid changeover.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage insulation testing, and in particular to a fully automatic variable-distance low-voltage insulation testing machine. Background Art

[0002] The low-voltage insulation tester uses a probe to contact the positive and negative electrodes of the battery module, and uses instruments such as a withstand voltage meter and a multimeter to test the insulation and withstand voltage performance of the battery module. When the probe spacing of conventional testers on the market needs to be adjusted, it can only be done manually, which increases the time required for product changeover and the manual workload, which is time-consuming and labor-intensive. Therefore, a fully automatic variable-distance low-voltage insulation tester is proposed. Summary of the invention

[0003] The technical problem to be solved by the embodiments of the present application is to provide a fully automatic variable-distance low-voltage insulation testing machine, which can realize low-voltage insulation testing of battery modules or PACKs. When the incoming products have battery cells of different sizes, the spacing of several probe blocks in the X and Y directions can be adjusted through the probe variable-distance mechanism, so as to realize automatic adjustment of the detection probe distance, achieve the purpose of rapid changeover, and improve the test efficiency; and solve the problem in the prior art that the probe spacing of the test machine needs to be adjusted manually.

[0004] In order to solve the above technical problems, the embodiment of the present application proposes a fully automatic variable pitch low-voltage insulation testing machine, including: a frame, a probe variable pitch mechanism, a lifting mechanism, an X-axis adjustment mechanism and a Y-axis adjustment mechanism; wherein, an X-axis adjustment mechanism is installed on the top of the frame, and the Y-axis adjustment mechanism is connected to the X-axis adjustment mechanism, and the X-axis adjustment mechanism and the Y-axis adjustment mechanism are arranged perpendicular to each other; the Y-axis adjustment mechanism is connected to the lifting mechanism; the lifting mechanism is installed with a probe variable pitch mechanism, and the bottom of the probe variable pitch mechanism is installed with a plurality of probe blocks distributed in a rectangular row and with adjustable spacing in the X and Y directions; two detection probes are installed at the bottom of the plurality of probe blocks; and a side probe piece is installed on the frame.

[0005] Furthermore, the X-axis adjustment mechanism includes: an X-axis guide rail, an X-axis slide, a first servo motor, a first gear and a first rack. The number of the X-axis guide rails is two, and the two X-axis guide rails are fixedly installed on the top of the frame. The two X-axis slides are slidably installed on the two X-axis guide rails, and the first servo motor is fixedly installed on the X-axis slide. The output end of the first servo motor is fixedly sleeved with a first gear, and the first gear is meshed with the first rack, and the first rack is fixedly installed in the length direction of the X-axis guide rail.

[0006] Furthermore, the Y-axis adjustment mechanism includes: a Y-axis guide rail, a lifting mounting plate, a second servo motor, a second gear and a second rack. The end of the Y-axis guide rail is fixedly connected to the top of the X-axis slide seat. A lifting mounting plate is slidably mounted on the Y-axis guide rail. A second servo motor is fixedly mounted on the lifting mounting plate. A second gear is fixedly sleeved on the output end of the second servo motor. The second gear is meshed with the second rack. The second rack is fixedly mounted in the length direction of the Y-axis guide rail.

[0007] Furthermore, the lifting mechanism includes: a lifting lower plate, a first screw rod, a third servo motor, a lifting upper plate, a linear bearing, a guide shaft and a first nut. The third servo motor is fixedly mounted on the top of the lifting mounting plate. The first screw rod is rotatably mounted in the middle of the lifting mounting plate. The bottom end of the first screw rod and the output end of the third servo motor are fixedly sleeved with a third gear. There are two third gears, and the two third gears are meshed and connected. A first nut is provided in the middle of the lifting upper plate. The first nut is threadedly connected to the first screw rod. Guide shafts are fixedly mounted at the four corners of the bottom of the lifting upper plate. The guide shafts pass through linear bearings fixedly mounted on the lifting mounting plate. The bottom end of the guide shaft is fixedly connected to the lifting lower plate.

[0008] Furthermore, the probe distance changing mechanism includes: a variable-distance linear module, a slide rail, and a Y-axis distance adjusting component. The number of the variable-distance linear modules is four, and the four variable-distance linear modules are all arranged at the bottom of the lifting lower plate. The variable-distance linear module located at the front end of the lifting lower plate is fixedly connected to the bottom of the lifting lower plate, and the other three corresponding variable-distance linear modules are all connected to the Y-axis distance adjusting component and the slide rail. The number of the Y-axis distance adjusting components is three, and the three Y-axis distance adjusting components are all fixedly installed at the bottom of the lifting lower plate, and the slide rail is also fixedly installed at the bottom of the lifting lower plate.

[0009] Furthermore, the Y-axis distance adjustment component includes: a fourth servo motor, a second screw rod and a second nut, both ends of the second screw rod are rotatably mounted with end seats, and the end seats are fixedly mounted on the bottom of the lifting lower plate, the output shaft end of the fourth servo motor is fixedly connected to one end of the second screw rod, the fourth servo is fixedly mounted on the end seat, the second screw rod is threadedly connected with a second nut, and the second nut is fixedly connected to the variable distance linear module.

[0010] Furthermore, a temperature sensor and a CCD camera lens are installed at the bottom of the lifting lower plate.

[0011] The embodiment of the present application proposes a fully automatic variable-distance low-voltage insulation testing machine, which can realize low-voltage insulation testing of battery modules or PACKs. When the incoming products have battery cells of different sizes, the spacing of several probe blocks in the X and Y directions can be adjusted through the probe variable-distance mechanism, thereby realizing automatic adjustment of the detection probe distance, achieving the purpose of rapid changeover and improving test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0013] Figure 2 is a structural schematic diagram of the lifting mechanism of an embodiment of the present application;

[0014] Figure 3 It is a structural schematic diagram of the bottom of the lifting lower plate of an embodiment of the present application.

[0015] [Description of Reference Numerals]

[0016] In the figure: 1-frame; 2-X-guide rail; 3-X-slide; 4-Y-guide rail; 5-first servo motor; 6-first gear; 7-first rack; 8-lifting mounting plate; 9-second servo motor; 10-second gear; 11-second rack; 12-lifting lower plate; 13-first screw rod; 14-side probe piece; 15-third servo motor; 16-lifting upper plate; 17-linear bearing; 18-guide shaft; 19-variable pitch linear module; 20-fourth servo motor; 21-slide rail; 22-second screw rod; 23-probe block; 24-detection probe; 25-temperature sensor; 26-first nut; 27-CCD camera lens. DETAILED DESCRIPTION

[0017] It should be noted that, in the absence of conflict, the embodiments in the present application and the features described in the embodiments may be combined with each other. The present application is further described in detail below in conjunction with the drawings and specific embodiments.

[0018] In the embodiments of the present application, if there are directional indications (such as up, down, left, right, front, back, etc.), they are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0019] In addition, in this application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0020] Please refer to Figure 1-3, the embodiment of the present application provides a fully automatic variable pitch low voltage insulation tester, including: a frame 1, a probe variable pitch mechanism, a lifting mechanism, an X-direction adjustment mechanism, and a Y-direction adjustment mechanism;

[0021] Wherein, an X-direction adjustment mechanism is installed on the top of the frame 1, and a Y-direction adjustment mechanism is connected to the X-direction adjustment mechanism, and the X-direction adjustment mechanism and the Y-direction adjustment mechanism are arranged perpendicular to each other;

[0022] The Y-axis adjustment mechanism is connected to a lifting mechanism;

[0023] The lifting mechanism is equipped with a probe pitch changing mechanism, and a plurality of probe blocks 23 are installed at the bottom of the probe pitch changing mechanism, which are arranged in a rectangular row and have adjustable spacing in the X and Y directions;

[0024] Two detection probes 24 are installed at the bottom of several of the probe blocks 23; and a side probe piece 14 is installed on the frame 1 for detecting the insulation and withstand voltage between the positive electrode of the battery cell and the shell.

[0025] Through the joint action of the X-axis adjustment mechanism, the Y-axis adjustment mechanism and the lifting mechanism, the probe distance changing mechanism can be adjusted in three directions: horizontally, vertically and longitudinally. After the material is delivered by the trolley, the probe distance changing mechanism can be moved to the top of the material and then pressed down so that the detection probe 24 contacts the battery cell.

[0026] like Figure 1 As shown, the X-axis adjustment mechanism includes: an X-axis guide rail 2, an X-axis slide 3, a first servo motor 5, a first gear 6 and a first rack 7. The number of the X-axis guide rails 2 is two, and the two X-axis guide rails 2 are fixedly installed on the top of the frame 1. The two X-axis slides 3 are slidably installed on the two X-axis guide rails 2, and the first servo motor 5 is fixedly installed on the X-axis slide 3. The output end of the first servo motor 5 is fixedly sleeved with the first gear 6, and the first gear 6 is meshed and connected with the first rack 7. The first rack 7 is fixedly installed in the length direction of the X-axis guide rail 2, and the first gear 6 is driven to rotate by the first servo motor 5. The first gear 6 moves on the first rack 7 to realize driving, so that the X-axis slide 3 can slide along the X-axis guide rail 2 to realize the adjustment of the X-axis position.

[0027] like Figure 1As shown, the Y-axis adjustment mechanism includes: a Y-axis guide rail 4, a lifting mounting plate 8, a second servo motor 9, a second gear 10 and a second rack 11. The end of the Y-axis guide rail 4 is fixedly connected to the top of the X-axis slide 3. The lifting mounting plate 8 is slidably mounted on the Y-axis guide rail 4. The second servo motor 9 is fixedly mounted on the lifting mounting plate 8. The output end of the second servo motor 9 is fixedly sleeved with a second gear 10. The second gear 10 is meshed and connected with the second rack 11. The second rack 11 is fixedly mounted in the length direction of the Y-axis guide rail 4. The second gear 10 is driven to rotate by the second servo motor 9. The second gear 10 walks on the second rack 11 to realize driving, so that the lifting mounting plate 8 can slide along the Y-axis guide rail 4 to realize the adjustment of the Y-axis position.

[0028] Move in the X-axis direction and the Y-axis direction; therefore, when the battery module or PACK has a large number of cells, multiple tests can be performed in different areas to complete the test of the entire product.

[0029] like Figure 2 As shown, the lifting mechanism includes: a lifting lower plate 12, a first screw rod 13, a third servo motor 15, a lifting upper plate 16, a linear bearing 17, a guide shaft 18 and a first nut 26. The third servo motor 15 is fixedly mounted on the top of the lifting mounting plate 8. The first screw rod 13 is rotatably mounted in the middle of the lifting mounting plate 8. The bottom end of the first screw rod 13 and the output end of the third servo motor 15 are fixedly sleeved with a third gear. The number of the third gears is two, and the two third gears are meshed and connected. The middle part of the lifting upper plate 16 is provided with a first nut 26, and the first nut 26 is threadedly connected to the first screw rod 13. Guide shafts 18 are fixedly installed at the four corners of the bottom of the lifting upper plate 16. The guide shafts 18 penetrate the linear bearings 17 fixedly installed on the lifting mounting plate 8. The bottom end of the guide shaft 18 is fixedly connected to the lifting lower plate 12. The third servo motor 15 drives the third gear to rotate. The meshing transmission between the two third gears can make the first screw rod 13 rotate. With the guidance between the linear bearings 17 and the guide shafts 18, the first nut 26 can be moved vertically. The lifting lower plate 12 and the lifting upper plate 16 move together to achieve lifting adjustment, which is used to drive the probe pitch change mechanism to perform lifting adjustment, so that the detection probe 24 is in contact with or separated from the battery cell.

[0030] like Figure 3As shown, the probe distance-changing mechanism includes: a variable-distance linear module 19, a slide rail 21, and a Y-axis distance-adjusting component. The number of the variable-distance linear modules 19 is four, and the four variable-distance linear modules 19 are all arranged at the bottom of the lifting lower plate 12. The variable-distance linear module 19 located at the front end of the lifting lower plate 12 is fixedly connected to the bottom of the lifting lower plate 12, and the other three corresponding variable-distance linear modules 19 are all connected to the Y-axis distance-adjusting component and the slide rail 21. The number of the Y-axis distance-adjusting components is three, and the three Y-axis distance-adjusting components are all fixedly installed at the bottom of the lifting lower plate 12, and the slide rail 21 is also fixedly installed at the bottom of the lifting lower plate 12; the Y-axis distance-adjusting component includes: a fourth servo motor 20, a second screw rod 22 and a second nut, both ends of the second screw rod 22 are rotatably installed with end seats, and the end seats are fixedly installed at the bottom of the lifting lower plate 12, the fourth The output shaft end of the servo motor 20 is fixedly connected to one end of the second screw rod 22, and the fourth servo is fixedly installed on the end seat. The second screw rod 22 is threadedly connected with a second nut, and the second nut is fixedly connected to the variable-pitch linear module 19. The positions of the three variable-pitch linear modules 19 are adjusted respectively through three Y-axis distance adjustment components, and the guidance of the slide rail 21 is cooperated. That is to say, the three variable-pitch linear modules 19 are slidably connected to the slide rail 21, and the Y-axis distance adjustment can be performed. With the fixedly installed variable-pitch linear module 19, the Y-axis spacing between the four variable-pitch linear modules 19 can be adjusted. After adjustment, the Y-axis spacing of the detection probe 24 is adjusted. The specific working principle of the Y-axis distance adjustment component is that the fourth servo motor 20 drives the second screw rod 22 to rotate, thereby driving the second nut, and cooperating with the guidance of the slide rail 21 to realize the Y-axis movement adjustment of the variable-pitch linear module 19.

[0031] The probe blocks 23 on the variable pitch linear module 19 can be variable pitched at equal intervals in the X-axis direction.

[0032] The variable pitch linear module 19 drives the variable pitch lead screw with a servo drive to drive the probe block 23 to move in a proportional manner from the center to both sides.

[0033] A temperature sensor 25 and a CCD camera lens 27 are installed at the bottom of the lifting lower plate 12. The CCD camera lens 27 can take pictures, provide picture signals, and judge the position. The temperature sensor 25 can sense and provide feedback signals.

[0034] The entire low-voltage insulation tester is connected to a control system to control the entire low-voltage insulation tester, process the data sensed by the sensor, and provide feedback. The control system can be controlled by PLC or single-chip microcomputer.

[0035] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fully automatic variable-distance low-voltage insulation tester, characterized in that: include: Frame, probe pitch changing mechanism, lifting mechanism, X-axis adjustment mechanism and Y-axis adjustment mechanism; Wherein, an X-direction adjustment mechanism is installed on the top of the frame, and a Y-direction adjustment mechanism is connected to the X-direction adjustment mechanism, and the X-direction adjustment mechanism and the Y-direction adjustment mechanism are arranged perpendicular to each other; The Y-axis adjustment mechanism is connected to a lifting mechanism; The lifting mechanism is equipped with a probe pitch-changing mechanism, and a plurality of probe blocks are installed at the bottom of the probe pitch-changing mechanism, which are arranged in a rectangular row and have adjustable spacing in the X and Y directions; Two detection probes are installed at the bottom of several of the probe blocks; side probe pieces are installed on the rack; The X-axis adjustment mechanism comprises: an X-axis guide rail, an X-axis slide, a first servo motor, a first gear and a first rack. The number of the X-axis guide rails is two, and the two X-axis guide rails are fixedly mounted on the top of the frame. The two X-axis guide rails are slidably mounted with an X-axis slide, and the first servo motor is fixedly mounted on the X-axis slide. The output end of the first servo motor is fixedly sleeved with a first gear, and the first gear is meshed and connected with the first rack. The first rack is fixedly mounted in the length direction of the X-axis guide rail; The Y-axis adjustment mechanism comprises: a Y-axis guide rail, a lifting installation plate, a second servo motor, a second gear and a second rack, the end of the Y-axis guide rail is fixedly connected to the top of the X-axis slide seat, the lifting installation plate is slidably installed on the Y-axis guide rail, the second servo motor is fixedly installed on the lifting installation plate, the output end of the second servo motor is fixedly sleeved with a second gear, the second gear is meshed and connected with the second rack, and the second rack is fixedly installed in the length direction of the Y-axis guide rail; The probe distance-changing mechanism comprises: a variable-distance linear module, a slide rail, and a Y-axis distance-adjusting assembly. The number of the variable-distance linear modules is four, and the four variable-distance linear modules are all arranged at the bottom of the lifting lower plate. The variable-distance linear module located at the front end of the lifting lower plate is fixedly connected to the bottom of the lifting lower plate, and the other three corresponding variable-distance linear modules are all connected to the Y-axis distance-adjusting assembly and the slide rail. The number of the Y-axis distance-adjusting assemblies is three, and the three Y-axis distance-adjusting assemblies are all fixedly installed at the bottom of the lifting lower plate, and the slide rail is also fixedly installed at the bottom of the lifting lower plate. The Y-axis pitch adjustment component includes: a fourth servo motor, a second screw rod, and a second nut. Both ends of the second screw rod are rotatably mounted with end seats, and the end seats are fixedly mounted on the bottom of the lifting lower plate. The output shaft end of the fourth servo motor is fixedly connected to one end of the second screw rod. The fourth servo is fixedly mounted on the end seat. The second screw rod is threadedly connected with a second nut, and the second nut is fixedly connected to the variable pitch linear module.

2. A fully automatic variable-distance low-voltage insulation tester as claimed in claim 1, characterized in that: The lifting mechanism includes: a lifting lower plate, a first screw rod, a third servo motor, a lifting upper plate, a linear bearing, a guide shaft and a first nut. The third servo motor is fixedly mounted on the top of the lifting mounting plate. The first screw rod is rotatably mounted in the middle of the lifting mounting plate. The bottom end of the first screw rod and the output end of the third servo motor are fixedly sleeved with a third gear. There are two third gears, and the two third gears are meshed and connected. A first nut is provided in the middle of the lifting upper plate. The first nut is threadedly connected to the first screw rod. Guide shafts are fixedly mounted at the four corners of the bottom of the lifting upper plate. The guide shafts pass through linear bearings fixedly mounted on the lifting mounting plate. The bottom end of the guide shaft is fixedly connected to the lifting lower plate.

3. A fully automatic variable-distance low-voltage insulation tester as claimed in claim 2, characterized in that: A temperature sensor and a CCD camera lens are installed at the bottom of the lifting lower plate.

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