Pole shank detection device

Abstract

The utility model relates to the technical field of battery pole core production, and discloses a pole core detection device which comprises a carrying table and a detection mechanism, the carrying table comprises a first bearing part and a second bearing part which are oppositely arranged, and the top of the first bearing part is flush with the top of the second bearing part; the first bearing part and the second bearing part are suitable for supporting the two ends of the detected pole core in the length direction respectively; the slide rail is arranged along the length direction of the detected pole core; the driving piece is installed on the sliding rail, a sliding block is installed at the driving end of the driving piece, and the sliding block is in sliding fit with the sliding rail; the measuring sensor is arranged on the sliding block and is suitable for dynamically measuring the distance between the sliding rail and the detected pole shank, and the problems that in the pole shank detection process, efficiency is low, labor cost is high, and detection results are not reliable enough are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pole core production, in particular to a pole core detection device. Background Art

[0002] The pole core refers to a single electrochemical pole core containing positive and negative electrodes, and is an important component of the battery. In the process of pole core production, the battery pole piece and the diaphragm need to be assembled and formed, and then the assembled pole piece and diaphragm are shaped by hot pressing and cold pressing processes. On the one hand, the interface between the pole pieces is guaranteed to be stable, and on the other hand, it is easy to put the pole core into the shell. In the process of hot pressing, due to the influence of hot pressing process parameters and the quality and proportion of the pole core material itself, the hardness of the pole core may not meet the standard. When the pole core is installed in the battery shell, it is easy to produce rigid scratches, causing external short circuit of the battery, and inside the pole core, due to the misalignment of the diaphragm and the pole piece, it is also easy to cause internal short circuit.

[0003] In the prior art, after the pole core hot pressing process is completed, a manual full inspection is usually adopted to determine whether the hardness of each pole core does not meet the standard through manual contact.

[0004] However, in the above-mentioned prior art, the pole core is inspected manually, which not only has low inspection efficiency and high labor cost, but also the inspection results are not reliable enough because the inspection standards cannot be quantified, which may lead to false inspections and affect product quality. Utility Model Content

[0005] In view of this, the utility model provides a pole core detection device to solve the problems of low efficiency, high labor cost and unreliable detection results in the pole core detection process.

[0006] The utility model provides a pole core detection device, including a carrier, the carrier including a first bearing part and a second bearing part arranged opposite to each other, the top of the first bearing part is flush with the top of the second bearing part, the first bearing part and the second bearing part are respectively suitable for supporting the two ends of the pole core to be detected in the length direction; a slide rail is arranged along the length direction of the pole core to be detected; a driving member is installed on the slide rail, and a slider is installed at the driving end of the driving member, and the slider cooperates with the slide rail; a measuring sensor is arranged on the slider and is suitable for dynamically measuring the distance between the slide rail and the pole core to be detected.

[0007] Beneficial effects: During the actual detection process, the two ends of the pole core to be detected in the length direction are placed on the top of the first bearing part and the top of the second bearing part respectively. The pole core to be detected is deformed and droops naturally under the action of its own gravity. At this time, the driving member and the measuring sensor start to work. The driving member drives the measuring sensor to move along the setting direction of the slide rail, that is, the length direction of the pole core to be detected. The measuring sensor measures and records the distance between the slide rail and the pole core to be detected, and obtains the deformation amount of the pole core to be detected. Since the weight of each pole core is certain, the stiffness of the pole core to be detected can be calculated according to the formula k=P / δ of the relationship between the static stiffness and the deformation amount of the object, and it can be judged whether the pole core meets the standard. In the formula, k represents stiffness, P represents force, and δ is the deformation amount. Or the deformation amount data of the pole core to be detected is compared with the threshold value of the qualified standard pole core data to judge whether the pole core to be detected meets the standard. Compared with the manual detection method in the prior art, the device requires less manpower, detects quickly, and can quantify the detection indicators to improve the reliability of detection.

[0008] In an optional embodiment, the slide rail is fixed on the ground, or the slide rail is connected to at least one of the first bearing part and the second bearing part.

[0009] Beneficial effects: The slide rail can be integrally arranged with the first load-bearing part and the second load-bearing part to ensure structural flexibility in device transportation and device layout, and can also be connected with the first load-bearing part and the second load-bearing part to make the device more integrated and reduce the possibility of measurement errors caused by position errors between the structures of the device itself.

[0010] In an optional embodiment, the tops of the first bearing part and the second bearing part are both provided with limiting slots, and the limiting slots are adapted to the width dimension of the pole core to be detected.

[0011] Beneficial effect: By arranging limiting slots on the first bearing part and the second bearing part, the pole core to be detected is limited, which reduces the possibility of deviation in the detection result caused by the position error of the pole core to be detected, and improves the convenience and detection reliability.

[0012] In an optional embodiment, the measuring sensor includes at least one laser displacement sensor, and the measuring end of the laser displacement sensor is oriented toward the pole core to be detected in a vertical direction.

[0013] Beneficial effects: The laser displacement sensor has high detection accuracy and fast scanning frequency, can accurately measure smaller deformation variables, and can quickly and comprehensively obtain the distance data of each point on the detection path of the detected pole core under the high-speed drive of the driving part, effectively improving the measurement speed and measurement accuracy.

[0014] In an optional embodiment, the driving member includes a servo motor and a screw rod, the screw rod is arranged along the length direction of the slide rail, the motor shaft of the servo motor is coaxially connected to the screw rod, the slider is sleeved on the screw rod and is connected with the screw rod thread, and the measurement sensor is driven by the rotation of the screw rod to follow the slider to move along the slide rail.

[0015] Beneficial effect: By using the servo motor and the lead screw as driving parts, the travel distance and movement speed of the measuring sensor arranged on the slider are highly controllable, suitable for adapting to different measuring sensors, and can meet the use requirements of different scenarios, thereby improving the adaptability of the device.

[0016] In an optional embodiment, a robot arm is further included, and the robot arm is suitable for transporting the detected pole core to the top of the first bearing part and the second bearing part.

[0017] Beneficial effect: By setting up a robot to transport the pole core to be inspected, the robot transports the pole core to be inspected to the top of the first load-bearing part and the second load-bearing part for sequential inspection, thereby further improving the inspection efficiency, and enabling the pole core inspection device to be applied to online inspection of the production line, thereby improving the degree of automation of the equipment.

[0018] In an optional embodiment, it further includes a levelness detection module disposed on one side of the platform in the horizontal direction, and the levelness detection module is suitable for detecting the levelness of the top of the first bearing part and the second bearing part.

[0019] Beneficial effect: Before inspecting the pole core to be inspected, the levelness of the top of the first load-bearing part and the second load-bearing part is checked through the levelness detection module. If the levelness does not meet the standard, the staff is required to adjust the device until the levelness meets the standard and then inspect the pole core to be inspected, thereby eliminating false detection and wrong detection caused by parameter errors of the device itself, and further improving the reliability of the device.

[0020] In an optional embodiment, an adjustment mechanism is further included, the first bearing part and the second bearing part are respectively connected to the adjustment mechanism, and the adjustment mechanism is suitable for adjusting the distance between the first bearing part and the second bearing part in the horizontal direction.

[0021] Beneficial effect: By setting an adjustment mechanism to adjust the distance between the first bearing part and the second bearing part in the horizontal direction, the device is convenient for detecting battery pole cores of different types and sizes, thereby further expanding the application scope of the device and improving its practicality.

[0022] In an optional embodiment, it also includes a control unit, which has a preset standard threshold built in it. The control unit is electrically connected to the measuring sensor and is suitable for receiving measurement data from the measuring sensor and comparing it with the preset standard threshold, so as to determine whether the tested pole core is qualified.

[0023] Beneficial effect: By electrically connecting the control unit with the measuring sensor, after the data detected by the measuring sensor is transmitted to the control unit, the control unit can quickly determine whether the pole core is qualified by comparing the data with the preset standard threshold, thereby further improving the detection efficiency and the automation level of the device.

[0024] In an optional embodiment, it also includes a processing unit, which is electrically connected to the control unit and is used to receive measurement data from the control unit, perform image simulation and image processing according to the measurement data, and record and output image simulation and image processing results.

[0025] Beneficial effects: The processing unit can perform image simulation, image processing and other operations on the measurement data, thereby laying the foundation for research and development work such as big data analysis and 3D modeling analysis of the measurement data of the inspected pole core, which is conducive to the automation and intelligent transformation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of a pole core detection device according to an embodiment of the utility model.

[0028] Figure 2 It is a front view of a pole core detection device according to an embodiment of the utility model.

[0029] Figure 3 It is a side view of a pole core detection device according to an embodiment of the utility model.

[0030] Description of reference numerals:

[0031] 100, carrier; 101, first bearing part; 102, second bearing part; 103, manipulator; 104, limit slot; 105, base; 106, support rod; 201, measuring sensor; 202, driving part; 2021, servo motor; 2022, lead screw; 203, slide rail; 204, slider; 300, adjustment mechanism; 400, pole core to be detected. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0033] Combine the following Figures 1 to 3 , describing an embodiment of the utility model.

[0034] According to an embodiment of the utility model, a pole core detection device is provided, including a carrier 100, a slide rail 203, a driving member 202 and a measuring sensor 201, the carrier 100 includes a first bearing part 101 and a second bearing part 102 which are arranged opposite to each other, the top of the first bearing part 101 is flush with the top of the second bearing part 102, the first bearing part 101 and the second bearing part 102 are respectively suitable for supporting the two ends of the pole core 400 to be detected in the length direction; the slide rail 203 is arranged along the length direction of the pole core 400 to be detected; the driving member 202 is installed on the slide rail 203, and a slider 204 is installed on the driving end of the driving member 202, the slider 204 cooperates with the slide rail 203 and is suitable for moving along the length direction of the slide rail 203; the measuring sensor 201 is arranged on the slider 204, and is suitable for dynamically measuring the distance between the slide rail 203 and the pole core 400 to be detected.

[0035] Specifically, the tops of the first bearing part 101 and the second bearing part 102 both have horizontal surfaces, and the horizontal surfaces at the tops of the first bearing part 101 and the second bearing part 102 are kept flush, and the two ends of the pole core 400 to be detected are respectively placed on the tops of the first bearing part 101 and the second bearing part 102. The tops of the first bearing part 101 and the second bearing part 102 may be provided with limit blocks for limiting the pole core 400 to be detected, and may also be provided with position marks for the staff to refer to for placing the pole core 400 to be detected.

[0036] It should be noted that the pole core 400 to be tested can be manually placed on the top of the first load-bearing part 101 and the second load-bearing part 102 by a staff member, or can be transported to the top of the first load-bearing part 101 and the second load-bearing part 102 by a loading structure such as a robot 103 or a conveyor belt.

[0037] It should be further explained that the present embodiment does not limit the specific forms of the measuring sensor 201 and the driving member 202. The measuring sensor 201 may be a laser displacement sensor or other devices with a distance measurement function; the driving member 202 may be a servo motor 2021 or a linear motor, an automatic displacement vehicle or other devices capable of transporting the measuring sensor 201.

[0038] In this embodiment, during the actual detection process, the two ends of the pole core 400 to be detected in the length direction are placed on the top of the first bearing part 101 and the top of the second bearing part 102 respectively. The pole core 400 to be detected is deformed and droops naturally under the action of its own gravity. At this time, the measuring sensor 201 and the driving member 202 start to work. The driving member 202 drives the measuring sensor 201 to move along the setting direction of the slide rail 203, that is, the length direction of the pole core 400 to be detected. The measuring sensor 201 measures and records the distance between the slide rail 203 and the pole core 400 to be detected, and obtains the deformation amount of the drooping pole core 400;

[0039] Since the weight of each pole core is certain, the deformation data of the pole core 400 to be tested is measured and collected by the measuring sensor 201, and then the stiffness of the pole core 400 to be tested can be calculated according to the formula k=P / δ of the relationship between the static stiffness and deformation of the object, and whether the pole core meets the standard can be judged; or the deformation data of the drooping pole core 400 to be tested can be compared with the threshold value of the qualified standard pole core data to judge whether the pole core 400 to be tested meets the standard. Compared with the manual detection method in the prior art, this device requires less manpower, detects quickly, and can quantify the detection indicators to improve the reliability of detection.

[0040] In one embodiment, the slide rail 203 is fixed on the ground, or the slide rail 203 is connected to at least one of the first supporting portion 101 and the second supporting portion 102 .

[0041] Specifically, the first bearing part 101 and the second bearing part 102 each include a base 105 and two support rods 106 . The two support rods 106 are mounted on the base 105 and arranged opposite to each other. The slide rail 203 passes between the two support rods 106 .

[0042] In this embodiment, the slide rail 203 can be separately arranged from the first load-bearing part 101 and the second load-bearing part 102 to ensure the flexibility of structural placement and transportation, or it can be connected to the first load-bearing part 101 and the second load-bearing part 102 to make the overall shape of the device better and reduce the possibility of measurement errors caused by the position error of the device itself.

[0043] In one embodiment, the tops of the first bearing portion 101 and the second bearing portion 102 are both provided with limiting slots 104 , and the limiting slots 104 are adapted to the width dimension of the pole core 400 to be detected.

[0044] Specifically, the limiting slot 104 is composed of grooves opened on two support rods 106 , and the grooves are respectively located at the top of the two support rods 106 and are arranged opposite to each other.

[0045] In this embodiment, by setting a limiting slot 104 on the first bearing part 101 and the second bearing part 102, the pole core 400 to be detected is limited, which reduces the possibility of deviation in the detection result caused by the position error of the pole core 400 to be detected, thereby improving convenience and detection reliability.

[0046] In one embodiment, the measuring sensor 201 includes at least one laser displacement sensor, and a measuring end of the laser displacement sensor is directed toward the pole core 400 to be detected in a vertical direction.

[0047] In this embodiment, the laser displacement sensor has high detection accuracy and fast scanning frequency, can accurately measure smaller deformation amounts, and can quickly and comprehensively obtain the distance data of each point on the detection path of the detected pole core 400 under the high-speed drive of the driving member 202, thereby effectively improving the measurement speed and measurement accuracy.

[0048] In one embodiment, the driving member 202 includes a servo motor 2021 and a screw rod 2022. The screw rod 2022 is arranged along the length direction of the slide rail 203. The motor shaft of the servo motor 2021 is coaxially connected to the screw rod 2022. The slider 204 is sleeved on the screw rod 2022 and is threadedly connected to the screw rod 2022. The screw rod 2022 rotates to drive the measuring sensor 201 to move along the slide rail 203 along with the slider 204.

[0049] In this embodiment, by using a servo motor 2021 and a screw rod 2022 as the driving member 202, the travel distance and movement speed of the measuring sensor 201 arranged on the slider 204 are highly controllable, suitable for adapting to different measuring sensors 201, and can meet the usage requirements of different scenarios, thereby improving the adaptability of the device.

[0050] In one embodiment, a robot arm 103 is further included, and the robot arm 103 is suitable for transporting the detected pole core 400 to the top of the first carrying part 101 and the second carrying part 102 .

[0051] It should be noted that the robot 103 transports the pole core 400 to the top of the first carrying part 101 and the second carrying part 102 and then detaches from the pole core 400 to be tested, and then grabs the pole core 400 from the top of the first carrying part 101 and the second carrying part 102 and transports it to other locations after waiting for the detection to be completed.

[0052] In this embodiment, a robot arm 103 is provided to transport the pole core 400 to be inspected. The robot arm 103 transports the pole core 400 to be inspected to the top of the first carrying part 101 and the second carrying part 102 for sequential inspection, thereby further improving the inspection efficiency and enabling the pole core inspection device to be applied to online inspection of the production line, thereby improving the degree of automation of the equipment.

[0053] In one embodiment, it further includes a levelness detection module (not shown in the figure) disposed on one side of the carrier 100 in the horizontal direction, and the levelness detection module is suitable for detecting the levelness of the tops of the first carrying part 101 and the second carrying part 102 .

[0054] Specifically, this embodiment does not limit the specific form of the level detection module. Exemplarily, the level detection module includes a laser level and a bracket. The bracket is used to support the laser level and can be used to adjust the height of the laser level. The laser level is used to detect the levelness of the top of the first supporting part 101 and the second supporting part 102.

[0055] In this embodiment, before inspecting the pole core 400 to be inspected, the levelness of the top of the first bearing part 101 and the second bearing part 102 is checked by the levelness detection module. If the levelness does not meet the standard, the staff is required to adjust the device until the levelness meets the standard and then inspect the pole core 400 to be inspected, thereby eliminating false detection and wrong detection caused by parameter errors of the device itself, and further improving the reliability of the device.

[0056] In one embodiment, an adjustment mechanism 300 is further included. The first carrying portion 101 and the second carrying portion 102 are respectively connected to the adjustment mechanism 300 . The adjustment mechanism 300 is suitable for adjusting the distance between the first carrying portion 101 and the second carrying portion 102 in the horizontal direction.

[0057] It should be noted that in this embodiment, when the slide rail 203 needs to be connected to the first load-bearing portion 101 and the second load-bearing portion 102 , the slide rail 203 is fixedly connected to one of the first load-bearing portion 101 or the second load-bearing portion 102 , and slidably cooperates with the other.

[0058] In this embodiment, the adjustment mechanism 300 is provided to adjust the distance between the first load-bearing portion 101 and the second load-bearing portion 102 in the horizontal direction, so that the device can detect battery cells of different types and sizes, thereby further expanding the scope of application of the device and improving its practicality.

[0059] In one embodiment, a control unit is also included, in which a preset standard threshold is built-in. The control unit is electrically connected to the measuring sensor 201, and is suitable for receiving measurement data from the measuring sensor 201 and comparing it with the preset standard threshold, so as to determine whether the detected pole core 400 is qualified.

[0060] Specifically, the maximum value minus the minimum value of the data measured by the measuring sensor 201 is the deformation of the pole core 400 being tested. The deformation is compared with the preset standard threshold. If it is within the threshold range, the pole core 400 being tested is judged to be qualified. If it exceeds the threshold range, the pole core 400 being tested is judged to be unqualified.

[0061] It should be noted that this embodiment does not limit the specific working logic of the driving member 202. The driving member 202 can be electrically connected to the control unit, and the movement and position of the slider 204 can be controlled and recorded by the control unit. A sensor can also be set on the driving member 202. When the sensor detects that there is a detected pole core 400 at a position relative to the driving member 202, the action part of the driving member 202 drives the detection unit to perform a displacement action of a complete stroke. The sensor can be a photoelectric gate or a camera with a visual analysis function.

[0062] In this embodiment, by electrically connecting the control unit to the measuring sensor 201, after the data detected by the measuring sensor 201 is transmitted to the control unit, the control unit can quickly determine whether the pole core is qualified by comparing the data with the preset standard threshold, thereby further improving the detection efficiency and the automation level of the device.

[0063] In one embodiment, a processing unit is further included, which is electrically connected to the control unit and is used to receive measurement data from the control unit, perform image simulation and image processing according to the measurement data, and record and output image simulation and image processing results.

[0064] Specifically, the measurement data also includes the horizontal position coordinates of each detection point. The processing unit can draw a deformation simulation curve of the detected pole core 400 at the detection position according to the distance data and horizontal position coordinates of each detection point. The horizontal position coordinates of the detection point can come from the driving member 202, and the driving member 202 is electrically connected to the control unit or the processing unit and sent to the processing unit, or it can come from other devices that can detect the position of the measuring sensor 201.

[0065] It should be noted that the processing unit can also be used to receive the measurement data from the control unit and compare the measurement data with a preset standard data threshold, and output the comparison result. The staff can choose to compare the measurement data through the control unit or through the processing unit according to the actual situation.

[0066] In this embodiment, by setting up a processing unit to compare and analyze the data independently or in conjunction with the control unit, the efficiency of detection and judgment can be further improved. In addition, the processing unit can perform image simulation, image processing and other operations on the measurement data, thereby laying the foundation for research and development work such as big data analysis and 3D modeling analysis of the measurement data of the detected pole core 400, which is conducive to the automation and intelligent transformation of the device.

[0067] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A core detection device, characterized in that: include: The carrier (100) comprises a first bearing part (101) and a second bearing part (102) which are arranged opposite to each other, the top of the first bearing part (101) is flush with the top of the second bearing part (102), and the first bearing part (101) and the second bearing part (102) are respectively suitable for supporting two ends of the pole core (400) to be detected in the length direction; The slide rail (203) is arranged along the length direction of the pole core (400) to be detected; A driving member (202) is mounted on the slide rail (203); a slider (204) is mounted on the driving end of the driving member (202); and the slider (204) is slidably matched with the slide rail (203); The measuring sensor (201) is arranged on the (204) sliding block (204) and is suitable for dynamically measuring the distance between the sliding rail (203) and the pole core (400) to be detected.

2. The pole core detection device according to claim 1, characterized in that: The slide rail (203) is fixed on the ground, or the slide rail (203) is connected to at least one of the first bearing part (101) and the second bearing part (102).

3. The pole core detection device according to claim 2, characterized in that: The tops of the first bearing part (101) and the second bearing part (102) are both provided with limiting slots (104), and the limiting slots (104) are adapted to the width of the pole core (400) to be detected.

4. The pole core detection device according to claim 3, characterized in that: The measuring sensor (201) comprises at least one laser displacement sensor, wherein a measuring end of the laser displacement sensor is directed toward the pole core (400) to be detected in a vertical direction.

5. The pole core detection device according to claim 4, characterized in that: The driving member (202) comprises a servo motor (2021) and a screw rod (2022); the screw rod (2022) is arranged along the length direction of the slide rail (203); the motor shaft of the servo motor (2021) is coaxially connected to the screw rod (2022); the slider (204) is sleeved on the screw rod (2022) and is threadedly connected to the screw rod (2022); the screw rod (2022) rotates to drive the measuring sensor (201) to follow the slider (204) and move along the slide rail (203).

6. The pole core detection device according to claim 1, characterized in that: It also includes a manipulator (103), wherein the manipulator (103) is suitable for transporting the detected pole core (400) to the top of the first carrying part (101) and the second carrying part (102).

7. The pole core detection device according to claim 1, characterized in that: It also comprises a levelness detection module arranged on one side of the carrier (100) in the horizontal direction, and the levelness detection module is suitable for detecting the levelness of the tops of the first bearing part (101) and the second bearing part (102).

8. The pole core detection device according to claim 1, characterized in that: The invention also comprises an adjusting mechanism (300), wherein the first bearing part (101) and the second bearing part (102) are respectively connected to the adjusting mechanism (300), and the adjusting mechanism (300) is suitable for adjusting the distance between the first bearing part (101) and the second bearing part (102) in the horizontal direction.

9. The pole core detection device according to any one of claims 1 to 8, characterized in that: It also includes a control unit, in which a preset standard threshold is built-in, and the control unit is electrically connected to the measurement sensor (201), and is suitable for receiving measurement data from the measurement sensor (201) and comparing it with the preset standard threshold, so as to determine whether the detected pole core (400) is qualified.

10. The pole core detection device according to claim 9, characterized in that: It also includes a processing unit, which is electrically connected to the control unit and is used to receive measurement data from the control unit, perform image simulation and image processing according to the measurement data, and record and output image simulation and image processing results.

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