A battery shell height automatic detection device

Abstract

This invention relates to the field of battery manufacturing technology and discloses an automatic battery casing height detection device, including a worktable, a lower mold component, a pressing component, and a detection component. The lower mold component includes a base, a height measuring component, and a lifting component. Two height measuring components are arranged on the left and right sides of the lifting component, respectively. Each height measuring component includes a lower mold guide plate, a sliding seat, a return spring, a linear slide rail, and an adjusting base. The detection component includes a displacement sensor installed on the side of the adjusting base. The battery casing is placed inside the lower mold guide plate, and the pressing component pushes the battery casing, lower mold guide plate, and sliding seat downwards together. After the downward movement is complete, the pressing component moves upwards, and the battery casing, lower mold guide plate, and sliding seat move upwards together under the action of the return spring, thus achieving automatic detection of the battery casing height.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing technology, and specifically to an automatic battery casing height detection device. Background Technology

[0002] Power batteries are a core component of new energy vehicles, providing power for electric vehicles, electric trains, and other similar vehicles. With increasing global emphasis on environmental protection and sustainable development, the demand for new energy vehicles is growing annually, leading to increasingly stringent requirements for the supply and performance of power batteries. The battery casing is a crucial barrier protecting the internal structure and components of the battery; its strength and sealing directly impact the battery's safety and performance. Power batteries are frequently subjected to vibration and impact during use. Insufficient casing strength or defects can lead to serious problems such as electrolyte leakage and short circuits.

[0003] The height detection of the power battery casing is a crucial step in ensuring battery quality and safety. The accuracy of the casing height directly affects the battery's sealing and the arrangement of internal components. Traditional manual inspection methods are cumbersome, inefficient, and prone to errors, failing to meet the high precision and efficiency demands of modern industry.

[0004] Cumbersome operation: Traditional manual testing methods require manual measurement and data recording, which is cumbersome and prone to errors. Especially when processing large numbers of samples, the efficiency and accuracy of this method are greatly affected.

[0005] Inefficiency: Manual inspection is slow and cannot meet the efficiency requirements of modern industry. Especially on large-scale production lines, manual inspection can severely slow down the entire production process.

[0006] Large margin of error: Due to the influence of human factors, the results of manual testing often contain significant errors. This not only affects product quality and safety but also increases production costs and risks for enterprises.

[0007] Modern industry demands high precision and efficiency in the inspection of power battery casings. High precision: With the continuous development of new energy vehicle technology, the precision requirements for power battery casings are becoming increasingly stringent. High-precision inspection ensures that the dimensions and shape of the battery casing meet design requirements, thereby guaranteeing the battery's sealing and the arrangement of internal components. This is crucial for improving battery performance and safety. High efficiency: Modern industry places increasingly higher demands on production efficiency, requiring inspection equipment to complete inspection tasks quickly and accurately. High-efficiency inspection reduces production line downtime, improves production efficiency, and lowers production costs.

[0008] Therefore, an automatic battery casing height detection device is needed. Summary of the Invention

[0009] The purpose of this invention is to provide an automatic battery casing height detection device that solves the problems of cumbersome operation, low efficiency, and large errors in traditional manual detection methods, which cannot meet the requirements of modern industry for high precision and high efficiency.

[0010] To achieve the above technical objectives, the technical solution adopted by this invention is as follows:

[0011] An automatic battery casing height detection device includes a worktable, a lower mold component, a pressing component, and a detection component. The lower mold component is fixedly mounted on the worktable. The pressing component is arranged on the upper part of the lower mold component. The lower mold component includes a base, a height measuring component, and a lifting component. The height measuring component and the lifting component are fixedly connected to the base. There are two height measuring components, respectively arranged on the left and right sides of the lifting component. The height measuring component includes a lower mold guide plate, a sliding seat, a return spring, a linear slide rail, and an adjusting base. The adjusting base is fixedly mounted on the base, and the linear slide rail is arranged on the vertical side of the adjusting base. The sliding seat is L-shaped, with its long side slidingly constrained to the linear slide rail, and its short upper side arranged on the top of the adjusting base. The return spring is arranged on the short upper side of the sliding seat. Between the edge and the top of the adjustment base; enabling the sliding seat to move up and down under the force of the return spring and the constraint of the linear slide rail; the lower mold guide plate is fixedly connected to the top of the sliding seat; the pressing component is used to push the battery housing downward; the detection component includes a displacement sensor, which is installed on the side of the adjustment base to detect the vertical displacement of the sliding seat; the battery housing is placed inside the lower mold guide plate, and the pressing component pushes the battery housing, lower mold guide plate, and sliding seat downward together; the displacement sensor detects the displacement of the sliding seat; after the downward movement is completed, the pressing component moves upward, and the battery housing, lower mold guide plate, and sliding seat move upward together under the action of the return spring; the lifting component is used to lift the battery housing; realizing automatic detection of the battery housing height.

[0012] As a further optimization of the solution, when inspecting different models of battery casings, the positions of the height measuring component and the lifting component are adjusted to adapt to changes in the length of the battery casing, and the pressing height of the pressing component is adjusted to adapt to changes in the height of the battery casing. Different models of lower mold guide plates are replaced to adapt to changes in the width of the battery casing, thereby reducing the need to change workpieces and improving work efficiency.

[0013] As a further optimization of the solution, the base is a groove-shaped plate, and the bottom of the height measuring component and the lifting component are installed in the groove, so that the position of the height measuring component and the lifting component can be matched with different models of battery housings.

[0014] As a further optimization of the solution, the fixed connection is a threaded connection.

[0015] As a further optimization of the solution, the height measuring component also includes a sliding limit block, which is arranged between the top of the adjusting base and the short upper side of the sliding seat to limit the displacement of the sliding seat.

[0016] As a further optimization of the solution, the detection component also includes a control component. The displacement data detected by the displacement sensor is transmitted to the control component to obtain the data of the battery casing, and is compared and analyzed with the standard data of the battery casing. Then, based on the height deviation of the battery casing, the unqualified battery casing is determined.

[0017] As a further optimization of the solution, the pressing component includes a drive motor, a ball screw, and a pressing plate; the drive motor controls the up and down movement of the pressing plate through the ball screw; the pressing plate makes contact with the upper surface of the battery casing to achieve downward displacement of the battery casing.

[0018] As a further optimization of the solution, the different pressing heights of the pressing component are based on the test data of standard workpieces for different models of battery casings.

[0019] The lifting assembly includes a lifting cylinder base, a lifting cylinder, and a lifting plate, which are used to reset the battery casing after detection.

[0020] As a further optimization of the solution, the number of displacement sensors is two, which are respectively arranged on the left and right adjustment bases to detect the vertical displacement of the sliding seats on the left and right sides; the control component compares and analyzes the height deviation of the left and right sides of the same battery casing.

[0021] As a further optimization of the solution, the control component includes an alarm module, which is activated when the number of unqualified battery casings reaches three.

[0022] The beneficial effects of adopting the above technical solution are as follows:

[0023] 1. This solves the problem that battery casing height measurement can only be done manually with a height gauge, and can only be done at multiple points, which is cumbersome, time-consuming, and difficult to automate online measurement.

[0024] 2. Flexible adjustment methods are adopted; when inspecting different models of battery casings, the position of the height measuring component and the lifting component is adjusted to adapt to changes in the length of the battery casing, and the pressing height of the pressing component is adjusted to adapt to changes in the height of the battery casing; different models of lower mold guide plates are replaced to adapt to changes in the width of the battery casing, thereby reducing the need to change workpieces and improving work efficiency.

[0025] 3. It can automatically perform high-precision measurements on the battery casing and transmit the measurement data to the system in real time for processing and analysis; it converts displacement sensor point measurements into measurements of the contact surface, and realizes online high-speed detection, which helps to improve the quality and safety of power batteries and promote the development of the new energy vehicle industry. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an automatic battery casing height detection device;

[0027] Figure 2 This is a schematic diagram of the lower mold component;

[0028] Figure 3 This is a schematic diagram of the height measurement component;

[0029] Figure 4 This is a schematic diagram of the pressing component;

[0030] Reference numerals: 1. Workbench; 2. Lower mold component; 3. Pressing component; 21. Base; 22. Height measuring component; 221. Lower mold guide plate; 222. Sliding seat; 223. Return spring; 224. Linear slide rail; 225. Adjusting base; 226. Sliding limit block; 231. Lifting cylinder seat; 232. Lifting cylinder; 233. Lifting plate; 31. Drive motor; 32. Ball screw; 33. Pressing plate; 41. Displacement sensor. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, an automatic battery casing height detection device includes a worktable 1, a lower mold component 2, a pressing component 3, and a detection component 4. The lower mold component 2 is fixedly connected to the worktable 1. The pressing component 3 is arranged on the upper part of the lower mold component 2. The lower mold component 2 includes a base 21, a height measuring component 22, and a lifting component. The height measuring component 22 and the lifting component are respectively fixedly connected to the base 21. There are two height measuring components 22, which are respectively arranged on the left and right sides of the lifting component. The height measuring component 22 includes a lower mold guide plate 221, a sliding seat 222, a return spring 223, a linear slide rail 224, and an adjusting base 225. The adjusting base 225 is fixedly connected to the base 21, and the linear slide rail 224 is arranged on the vertical side of the adjusting base 225. The sliding seat 222 is L-shaped, with its long side engaged with the linear slide rail 224 through a sliding constraint, and its short upper side arranged on the top of the adjusting base 225. The return spring 223 is arranged on the sliding seat. The upper short side of 222 is between the top of the adjusting base 225 and the bottom of the sliding seat 222; the sliding seat 222 moves up and down under the force of the return spring 223 and the constraint of the linear slide rail 224; the lower mold guide plate 221 is fixedly connected to the top of the sliding seat 222; the pressing component 3 is used to push the battery housing downward; the detection component 4 includes a displacement sensor 41, which is installed on the side of the adjusting base 225 to detect the up and down displacement of the sliding seat 222; the battery housing is placed in the lower mold guide plate 221, and the pressing component 3 pushes the battery housing, the lower mold guide plate 221, and the sliding seat 222 downward together; the displacement sensor 41 detects the displacement of the sliding seat 222; after the downward movement is completed, the pressing component 3 moves upward, and the battery housing, the lower mold guide plate 221, and the sliding seat 222 move upward together under the action of the return spring 223; the lifting component is used to lift the battery housing; to realize the automatic detection of the battery housing height.

[0033] Example 1

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, when inspecting different models of battery casings, the positions of the height measuring component 22 and the lifting component are adjusted to adapt to changes in the length of the battery casing, and the pressing height of the pressing component 3 is adjusted to adapt to changes in the height of the battery casing. Different models of lower mold guide plates 221 are replaced to adapt to changes in the width of the battery casing, thereby reducing the need to change workpieces and improving work efficiency.

[0035] The base 21 is a grooved plate, and the bottom of the height measuring component 22 and the lifting component are installed in the groove, so that the position of the height measuring component 22 and the lifting component can be matched with different models of battery housings.

[0036] The fixed connection is a threaded connection. The height measuring component 22 also includes a sliding limit block 226, which is arranged between the top of the adjusting base 225 and the short upper side of the sliding seat 222 to limit the displacement of the sliding seat 222.

[0037] The detection component 4 also includes a control component. The displacement data detected by the displacement sensor 41 is transmitted to the control component to obtain the data of the battery casing. The data is then compared and analyzed with the standard data of the battery casing, and the unqualified battery casing is determined based on the height deviation of the battery casing.

[0038] The pressing component 3 includes a drive motor 31, a ball screw 32, and a pressing plate 33; the drive motor 31 controls the up and down movement of the pressing plate 33 through the ball screw 32; the pressing plate 33 makes contact with the upper surface of the battery casing to achieve downward displacement of the battery casing.

[0039] The different pressing heights of the pressing component 3 are the test data of standard workpieces for different models of battery casings.

[0040] The lifting assembly includes a lifting cylinder base 231, a lifting cylinder 232, and a lifting plate 233, which are used to reset the battery casing after detection.

[0041] There are two displacement sensors 41, which are respectively arranged on the left and right adjustment bases 225 to detect the vertical displacement of the sliding seats 222 on the left and right sides; the control component compares and analyzes the height deviation of the left and right sides of the same battery casing.

[0042] The control component includes an alarm module, which is activated when the number of defective battery casings reaches three.

[0043] Example 2

[0044] An automatic housing height detection device includes a lower mold component, a pressing component, and a worktable. The lower mold component is fixed on the worktable, and its fixed base is equipped with left and right sets of height measuring components and a lifting component. The spacing between the two height measuring components can be adjusted left and right, and the lower mold guide plate can be replaced for housings of different sizes. The pressing component is placed between the left and right height measuring components, and the pressing height can be adjusted. The pressing plate can also be replaced for housings of different sizes. By adjusting the spacing between the height measuring components and the pressing height, it is used for positioning and measuring different workpiece sizes.

[0045] The lower mold component includes a fixed base, a height measuring component, and a lifting component. The fixed base is connected and fixed to the worktable via a threaded connector. The fixed base is characterized by having a height measuring component, which includes an adjusting base, a linear slide rail, a displacement sensor, a return spring, a sliding seat, a sliding limit block, a transition pressure plate, a dust blowing pipe connector, and a lower mold guide plate. The lifting component includes a lifting cylinder seat, a lifting cylinder, and a lifting plate. The lower mold component is used for pre-test positioning of the workpiece, and the lifting component is used for post-test housing reset. The height measuring and pressing component includes a drive motor, a drive motor seat, a coupling, a linear bearing, a ball screw, a guide shaft, a linear bearing, a pressing fixed seat, a guide shaft, and a pressing plate. The height measuring and pressing component is used for height positioning of the workpiece during testing, and the contact surface between the pressing plate and the workpiece serves as the test reference surface.

[0046] The left and right height measuring components are fixed to a fixed base. The fixed base has a row of threaded holes on both the left and right sides of its mounting surface for fixing and adjusting the height measuring component spacing. Each height measuring component includes an adjusting base, a displacement sensor mounted on the adjusting base, and a linear slide rail. A sliding seat is mounted on the linear slide rail. A return spring and a sliding limit block are placed at the connection between the sliding seat and the top of the adjusting base. The sliding limit block restricts the sliding seat's range of motion. Simultaneously, after the lower mold guide plate is fixed to the adapter plate, the adapter plate is fixed to the sliding seat and presses down the return spring, generating spring compression force so that the sliding seat always remains at its upper limit position when not subjected to downward pressure. When the sliding seat on the height measuring component is not under downward pressure, it always remains at its upper limit position, and the detection point of the displacement sensor is at the bottom of the sliding seat. When the workpiece is pushed downward by the height measuring pressure plate in the height measuring pressing component, the sliding seat is subjected to downward pressure, and the height of the sliding seat changes. The change value is directly and accurately fed back to the displacement sensor display panel. The change in the height of the workpiece pressing the sliding seat is fed back to the displacement sensor. Therefore, first, a standard block of the workpiece is found, and the standard block is placed in place to replace the workpiece in the detection mechanism, and the detection result of the displacement sensor is reset to zero. Then, the workpiece is placed in for detection. The height difference caused by the inconsistency between the height of the workpiece and the standard block causes the difference in the downward pressure height of the sliding seat, which is ultimately fed back to the displacement sensor.

[0047] This invention solves the problem that battery casing height measurement can only be done manually with a height gauge, and requires multi-point contact measurement, which is cumbersome, time-consuming, and difficult to automate online measurement. This application adopts a flexible adjustment method: the casing length is adjusted by the base, and the casing height is adjusted by servo control of the pressing height. Only the lower mold positioning block needs to be replaced as the width changes, effectively reducing the cost of changing parts and components.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic battery casing height detection device, characterized in that, It includes a worktable (1), a lower mold component (2), a pressing component (3), and a detection component; the lower mold component (2) is fixedly connected and installed on the worktable (1); the pressing component (3) is arranged on the upper part of the lower mold component (2); The lower mold component (2) includes a base (21), a height measuring component (22), and a lifting component; the height measuring component (22) and the lifting component are respectively fixedly connected to the base (21); there are two height measuring components (22), which are respectively arranged on the left and right sides of the lifting component; The height measuring component (22) includes a lower mold guide plate (221), a sliding seat (222), a return spring (223), a linear slide rail (224), and an adjusting base (225). The adjusting base (225) is fixedly connected to the base (21), and the linear slide rail (224) is arranged on the vertical side of the adjusting base (225). The sliding seat (222) is L-shaped, with its long side and the linear slide rail (224) connected by a sliding constraint, and its short upper side arranged on the top of the adjusting base (225). The return spring (223) is arranged between the short upper side of the sliding seat (222) and the top of the adjusting base (225). This allows the sliding seat (222) to move up and down under the force of the return spring (223) and the constraint of the linear slide rail (224). The lower mold guide plate (221) is fixedly connected to the top of the sliding seat (222); The pressing component (3) is used to push the battery casing downward; The detection component includes a displacement sensor (41), which is installed on the side of the adjustment base (225) and is used to detect the vertical displacement of the sliding seat (222). The battery housing is placed inside the lower mold guide plate (221). The pressing component (3) pushes the battery housing, the lower mold guide plate (221), and the sliding seat (222) to move downward together. The displacement sensor (41) detects the displacement of the sliding seat (222). After the downward movement is completed, the pressing component (3) moves upward. The battery housing, the lower mold guide plate (221), and the sliding seat (222) move upward together under the action of the return spring (223). The lifting component is used to lift the battery housing. The height of the battery housing is automatically detected.

2. The automatic battery casing height detection device according to claim 1, characterized in that, When inspecting different models of battery housings, the position of the height measuring component (22) and the lifting component is adjusted to adapt to the change in battery housing length, and the pressing height of the pressing component (3) is adjusted to adapt to the change in battery housing height; the width of the battery housing is adapted by replacing the lower mold guide plate (221) of different models, thereby reducing the need to change workpieces and improving work efficiency.

3. The automatic battery casing height detection device according to claim 1, characterized in that, The base (21) is a grooved plate, and the bottom of the height measuring component (22) and the lifting component are installed in the groove, so that the position of the height measuring component (22) and the lifting component can match different models of battery housings.

4. The automatic battery casing height detection device according to claim 1, characterized in that, The fixed connection is a threaded connection.

5. The automatic battery casing height detection device according to claim 1, characterized in that, The height measuring component (22) also includes a sliding limit block (226), which is arranged between the top of the adjusting base (225) and the short upper side of the sliding seat (222) to limit the displacement of the sliding seat (222).

6. The automatic battery casing height detection device according to claim 1, characterized in that, The detection component also includes a control component. The displacement data detected by the displacement sensor (41) is transmitted to the control component to obtain the data of the battery casing. The data is then compared and analyzed with the standard data of the battery casing, and the unqualified battery casing is determined based on the height deviation of the battery casing.

7. The automatic battery casing height detection device according to claim 1, characterized in that, The pressing component (3) includes a drive motor (31), a ball screw (32), and a pressing plate (33); the drive motor (31) controls the up and down movement of the pressing plate (33) through the ball screw (32); the pressing plate (33) is in contact with the upper surface of the battery casing to realize the downward displacement of the battery casing.

8. The automatic battery casing height detection device according to claim 1, characterized in that, The lifting assembly includes a lifting cylinder base (231), a lifting cylinder (232), and a lifting plate (233), which are used to reset the battery casing after detection.

9. The automatic battery casing height detection device according to claim 2, characterized in that, The different pressing heights of the pressing component (3) are the test data of standard workpieces for different models of battery casings.

10. The automatic battery casing height detection device according to claim 6, characterized in that, There are two displacement sensors (41), which are respectively arranged on the left and right adjustment bases (225) to detect the vertical displacement of the sliding seats (222) on the left and right sides; the control component compares and analyzes the height deviation of the left and right sides of the same battery casing.

11. The automatic battery casing height detection device according to claim 6, characterized in that, The control component includes an alarm module, which is activated when the number of defective battery casings reaches three.

Images