Automatic detection device for height of battery shell

Abstract

The invention relates to the technical field of battery production and manufacturing, and discloses a battery shell height automatic detection device which comprises a workbench, a lower die part, a downward pressing part and a detection part. The lower die part comprises a base, a height measuring assembly and a jacking assembly; the number of the height measuring assemblies is two, and the height measuring assemblies are arranged on the left side and the right side of the jacking assembly respectively. The height measuring assembly comprises a lower die guide plate, a sliding seat, a reset spring, a linear sliding rail and an adjusting base. The detection part comprises a displacement sensor; the displacement sensor is mounted at the side part of the adjusting base; the battery shell is placed in the lower die guide plate, and the pressing part pushes the battery shell, the lower die guide plate and the sliding seat to move downwards together; and after downward movement is completed, the downward pressing part moves upwards, the battery shell, the lower die guide plate and the sliding seat move upwards together under the action of the reset spring, and automatic detection of the height of the battery shell is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of battery production and manufacturing, and in particular to a battery shell height automatic detection device. Background Art

[0002] Power batteries are core components of new energy vehicles, providing power sources for electric vehicles, electric trains, etc. With the global emphasis on environmental protection and sustainable development, the demand for new energy vehicles is increasing year by year, and the supply and performance requirements of power batteries are also getting higher and higher. The power battery casing is an important barrier to protect the internal structure and components of the battery. Its strength and sealing directly affect the safety and performance of the battery. Power batteries are frequently subjected to vibration and impact during use. If the casing is not strong enough or has defects, it may cause serious problems such as electrolyte overflow and battery short circuit.

[0003] Height detection of power battery shells is an important part of ensuring battery quality and safety. The accuracy of shell height directly affects the sealing of the battery and the layout of internal components. Traditional manual detection methods have problems such as cumbersome operation, low efficiency, and large errors, and cannot meet the needs of modern industry for high precision and high efficiency.

[0004] Complicated operation: Traditional manual detection methods require manual measurement and data recording, which is cumbersome and error-prone. Especially when dealing with a large number of samples, the efficiency and accuracy of this method will be greatly affected.

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

[0006] Large errors: Due to human factors, the results of manual testing often have large errors. This will not only affect the quality and safety of the product, but also increase the production costs and risks of the enterprise.

[0007] Modern industry has put forward high-precision and high-efficiency requirements for the height detection of power battery shells; High precision: With the continuous development of new energy vehicle technology, the precision requirements for power battery shells are getting higher and higher. High-precision detection can ensure that the size and shape of the battery shell meet the design requirements, thereby ensuring the sealing of the battery and the arrangement of internal components. This is crucial to improving the performance and safety of the battery. High efficiency: Modern industry has higher and higher requirements for production efficiency, requiring detection equipment to complete detection tasks quickly and accurately. High-efficiency detection can reduce the downtime of the production line, improve production efficiency and reduce production costs.

[0008] In view of this, a battery casing height automatic detection device is needed. Summary of the invention

[0009] The purpose of the present invention is to provide a battery casing height automatic detection device to solve the problems of cumbersome operation, low efficiency, large error, etc. in traditional manual detection methods, and cannot meet the requirements of modern industry for high precision and high efficiency.

[0010] In order to achieve the above technical objectives, the technical solution adopted by the present invention is:

[0011] A battery shell height automatic detection device comprises a workbench, a lower mold component, a lower pressure component, and a detection component; the lower mold component is installed on the workbench by a fixed connection; the lower pressure component is arranged on the upper part of the lower mold component; the lower mold component comprises a base, a height measuring component, and a lifting component; the height measuring component and the lifting component are respectively installed on the base by a fixed connection; the number of the height measuring components is 2, which are respectively arranged on the left and right sides of the lifting component; the height measuring component comprises a lower mold guide plate, a sliding seat, a reset spring, a linear slide rail, and an adjustment base; the adjustment base is arranged on the base by a fixed connection, and the linear slide rail is arranged on the vertical side of the adjustment base; the sliding seat is L-shaped, the long side is matched with the linear slide rail by sliding constraint, and the short upper side is arranged on the top of the adjustment base; the reset spring is arranged on the sliding seat The short upper side is between the upper side and the top of the adjustment base; the sliding seat is moved up and down under the action of the reset spring and the constraint of the linear slide rail; the lower die guide plate is arranged on the top of the sliding seat by a fixed connection; the pressing component is used to push the battery housing to move downward; the detection component includes a displacement sensor, which is installed on the side of the adjustment base and is used to detect the up and down displacement of the sliding seat; the battery housing is placed in the lower die guide plate, and the pressing component pushes the battery housing, the lower die guide plate and the sliding seat to move downward together; the displacement sensor detects the displacement of the sliding seat; after completing the downward movement, the pressing component moves upward, and the battery housing, the lower die guide plate and the sliding seat move upward together under the action of the reset spring, and the lifting assembly is used to lift the battery housing; automatic detection of the height of the battery housing is realized.

[0012] As a further optimization of the solution, when inspecting battery shells of different types, the length changes of the battery shells are adapted to by adjusting the positions of the height measuring assembly and the lifting assembly, and the height changes of the battery shells are adapted to by adjusting the pressing height of the pressing component; the width changes of the battery shells are adapted to by replacing different types of lower mold guide plates, thereby reducing the replacement of workpieces and improving work efficiency.

[0013] As a further optimization of the solution, the base is a groove-type plate, and the bottoms of the height measuring component and the lifting component are installed in the groove, so that the positions of the height measuring component and the lifting component can match battery casings of different models.

[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 assembly also includes a sliding limit block, which is arranged between the top of the adjustment 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 shell, and compare and analyze it with the standard data of the battery shell, and then judge the unqualified battery shell according to the height deviation of the battery shell.

[0017] As a further optimization of the solution, the pressing component includes a driving motor, a ball screw, and a lower pressing plate; the driving motor controls the up and down movement of the lower pressing plate through the ball screw; the lower pressing plate contacts the upper surface of the battery housing to achieve downward displacement of the battery housing.

[0018] As a further optimization of the solution, the different pressing heights of the pressing component are detection data of standard workpieces of battery shells of different models.

[0019] The jacking assembly comprises a jacking cylinder seat, a jacking cylinder and a jacking plate, and is used to detect the resetting of the rear battery housing.

[0020] As a further optimization of the solution, the number of displacement sensors is 2, which are arranged on the left and right adjustment bases respectively, for detecting the up and down 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 shell.

[0021] As a further optimization of the solution, the control component includes an alarm module, and when the number of battery shells determined to be unqualified reaches 3, the alarm module is activated.

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

[0023] 1. It solves the problem that the battery shell height can only be measured with a manual height meter, and can only be measured at multiple points, the measurement is cumbersome, the cycle is long, and it is difficult to achieve automated online measurement.

[0024] 2. Adopt flexible adjustment method; when testing different types of battery shells, the length of the battery shell can be changed by adjusting the position of the height measuring component and the lifting component, and the height of the battery shell can be changed by adjusting the pressing height of the pressing component; the width of the battery shell can be changed by replacing different types of lower die guide plates, thereby reducing the replacement of workpieces and improving work efficiency.

[0025] 3. It can automatically perform high-precision measurements on the battery shell and transmit the measurement data to the system in real time for processing and analysis; it can convert the displacement sensor point measurement into the measurement of the contact surface, and realize online high-speed detection, which will help improve the quality and safety of power batteries and promote the development of the new energy vehicle industry. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 2 It 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 It is a schematic diagram of the pressing component;

[0030] Figure numerals: 1. workbench, 2. lower mold component, 3. lower pressure component, 21. base, 22. height measuring assembly, 23. lifting assembly, 221. lower mold guide plate, 222. sliding seat, 223. return spring, 224. linear slide rail, 225. adjustment base, 226. sliding limit block, 231. lifting cylinder seat, 232. lifting cylinder, 233. lifting plate, 31. driving motor, 32. ball screw, 33. lower pressure plate, 41. displacement sensor. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a battery shell height automatic detection device comprises a workbench 1, a lower mold component 2, a lower pressing component 3, and a detection component 4; the lower mold component 2 is fixedly connected and mounted on the workbench 1; the lower pressing component 3 is arranged on the upper part of the lower mold component 2; the lower mold component 2 comprises a base 21, a height measuring component 22, and a lifting component 23; the height measuring component 22 and the lifting component 23 are respectively fixedly connected and mounted on the base 21; the number of the height measuring components 22 is 2, which are respectively arranged on the lifting components 23 and the lower mold component 21. The left and right sides of the assembly 23; the height measuring assembly 22 includes a lower mold guide plate 221, a sliding seat 222, a reset spring 223, a linear slide rail 224, and an adjustment base 225; the adjustment base 225 is arranged on the base 21 by a fixed connection, and the linear slide rail 224 is arranged on the vertical side of the adjustment base 225; the sliding seat 222 is L-shaped, the long side is matched with the linear slide rail 224 by sliding constraint, and the short upper side is arranged on the top of the adjustment base 225; the reset spring 223 is arranged on the ... The lower die guide plate 221 is arranged on the top of the sliding seat 222 by a fixed connection; the pressing component 3 is used to push the battery housing to move downward; the detection component 4 includes a displacement sensor 41, which is installed on the side of the adjustment base 225 and is used to detect the up and down displacement of the sliding seat 222; the battery housing is placed in the lower die guide plate 221, and the pressing component 3 pushes the battery housing, the lower die 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 completing the downward movement, the pressing component 3 moves upward, and the battery housing, the lower die guide plate 221, and the sliding seat 222 move upward together under the action of the reset spring 223, and the lifting assembly 23 is used to lift the battery housing; the automatic detection of the height of the battery housing is realized.

[0033] Embodiment 1

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, when detecting battery shells of different types, the length change of the battery shell is adapted to the change by adjusting the position of the height measuring component 22 and the lifting component 23, and the height change of the battery shell is adapted to the change by adjusting the pressing height of the pressing component 3; the width change of the battery shell is adapted to the change by replacing the lower mold guide plate 221 of different types, thereby reducing the replacement of workpieces and improving work efficiency.

[0035] The base 21 is a groove-shaped plate, and the bottoms of the height measuring component 22 and the lifting component 23 are installed in the groove, so that the positions of the height measuring component 22 and the lifting component 23 can match battery shells of different models.

[0036] The height measuring assembly 22 further comprises a sliding stopper 226 , which is arranged between the top of the adjustment base 225 and the short upper side of the sliding seat 222 and is used 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 shell and compare and analyze it with the standard data of the battery shell, and then determine the unqualified battery shell according to the height deviation of the battery shell.

[0038] The pressing component 3 includes a driving motor 31, a ball screw 32, and a pressing plate 33; the driving motor 31 controls the up and down movement of the pressing plate 33 through the ball screw 32; the pressing plate 33 contacts the upper surface of the battery housing to achieve downward movement of the battery housing.

[0039] The different pressing heights of the pressing component 3 are the detection data of standard workpieces of battery shells of different models.

[0040] The lifting assembly 23 includes a lifting cylinder seat 231, a lifting cylinder 232, and a lifting plate 233, which are used to detect the resetting of the rear battery housing.

[0041] There are two displacement sensors 41, which are arranged on the left and right adjustment bases 225 respectively, for detecting the up and down displacement of the left and right sliding bases 222; the control component compares and analyzes the height deviation of the left and right sides of the same battery housing.

[0042] The control component includes an alarm module, and when the number of battery shells determined to be unqualified reaches 3, the alarm module is activated.

[0043] Embodiment 2

[0044] A shell height automatic detection device includes a lower mold component, a lower pressing component and a workbench. The lower mold component is fixed on the workbench, and its fixed base is provided with left and right sets of height measuring components and a lifting component. The height measuring components on both sides can adjust the spacing left and right, and the lower mold guide plate can be replaced for shells of different sizes; the lower pressing component is placed between the left and right height measuring components, and the pressing height can be adjusted, and the height measuring lower pressing plate can be replaced for shells of different sizes; by adjusting the spacing of the height measuring components and the pressing height, it is used to locate and measure different workpiece sizes.

[0045] The lower mold component includes a fixed base, a height measuring assembly and a lifting assembly, and the fixed base is connected and fixed on the workbench by a threaded connector, and is characterized in that the fixed base is provided with a height measuring assembly and, the height measuring assembly includes an adjustment base, a linear slide rail, a displacement sensor, a reset spring, a sliding seat, a sliding limit block, a transfer pressure plate, a dust blowing pipe joint, and a lower mold guide plate; the lifting assembly includes a lifting cylinder seat, a lifting cylinder, and a lifting plate; the lower mold component is used for positioning the workpiece to be inspected before measurement, and the lifting assembly is used for resetting the shell after measurement; the height measuring lower pressure component includes a driving motor, a driving motor seat, a coupling, a linear bearing, a ball screw, a guide shaft, a linear bearing, a lower pressure fixed seat, a guide shaft, and a lower pressure plate; the height measuring lower pressure component is used for height positioning of the workpiece to be inspected during testing, and the contact surface between the lower pressure plate and the workpiece is the test reference surface.

[0046] The left and right height measuring assemblies are fixed on a fixed base, and there are a row of fixed threaded holes on the left and right mounting surfaces of the fixed base for fixing the adjustment base to adjust the spacing between the height measuring assemblies. The height measuring assembly includes an adjustment base, a displacement sensor and a linear slide rail installed on the adjustment base, a sliding seat is installed on the linear slide rail, and a reset spring and a sliding limit block are placed at the connection between the sliding seat and the top of the adjustment base; the sliding limit block limits the movement range of the sliding seat, and at the same time, after the lower mold guide plate is fixed on the adapter pressure plate, the adapter pressure plate is fixed on the sliding seat and presses the reset spring to generate a spring compression force, so that the sliding seat always maintains the upper limit position when it is not subject to downward pressure. The sliding seat on the height measuring component always maintains the upper limit position when not subject to downward pressure, and the detection point of the displacement sensor is at the bottom of the sliding seat; when the detection workpiece is pushed downward by the height measuring downward pressure plate in the height measuring downward pressure component, the sliding seat is subjected to downward pressure, and the height of the sliding seat changes, and the change value will be directly and accurately fed back to the display panel of the displacement sensor; the change in the height of the sliding seat pressed by the detection workpiece will be fed back to the displacement sensor; therefore, first find a standard block for the detection workpiece, replace the detection workpiece with the standard block, put it into the detection mechanism, and reset the detection result of the displacement sensor to zero; then put the detection workpiece in for detection, and the height difference caused by the height inconsistency between the detection workpiece and the standard block will cause the height change difference of the sliding seat under pressure, which will eventually be fed back to the displacement sensor.

[0047] The present invention solves the problem that the battery shell height can only be measured with a manual height meter, and can only be measured at multiple points, the measurement is cumbersome, the cycle is long, and it is difficult to achieve automated online measurement. The application adopts a flexible adjustment method; the shell length change is adjusted by the base, and the shell height change is servo-controlled to adjust the pressing height. It only needs to replace the lower mold positioning block as the width changes; effectively reducing the cost of replacing workpieces and accessories.

[0048] It will be apparent to those skilled in the art that the 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 the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A battery casing height automatic detection device, characterized in that: It comprises a workbench (1), a lower mold component (2), a lower pressing component (3), and a detection component; the lower mold component (2) is mounted on the workbench (1) by a fixed connection; the lower pressing component (3) is arranged on the upper part of the lower mold component (2); The lower mold component (2) comprises a base (21), a height measuring assembly (22), and a lifting assembly (23); the height measuring assembly (22) and the lifting assembly (23) are respectively mounted on the base (21) by fixed connection; the number of the height measuring assemblies (22) is two, which are respectively arranged on the left and right sides of the lifting assembly (23); The height measuring assembly (22) comprises a lower die guide plate (221), a sliding seat (222), a reset spring (223), a linear slide rail (224), and an adjustment base (225); the adjustment base (225) is arranged on the base (21) by a fixed connection, and the linear slide rail (224) is arranged on the vertical side of the adjustment base (225); the sliding seat (222) is L-shaped, the long side and the linear slide rail (224) are matched by sliding constraints, and the short upper side is arranged on the top of the adjustment base (225); the reset spring (223) is arranged between the short upper side of the sliding seat (222) and the top of the adjustment base (225); the sliding seat (222) is realized to move up and down under the action of the reset spring (223) and the constraint of the linear slide rail (224); The lower die guide plate (221) is arranged on the top of the sliding seat (222) by fixed connection; The pressing component (3) is used to push the battery housing to move downward; The detection component comprises a displacement sensor (41), which is installed on the side of the adjustment base (225) and is used to detect the up and down displacement of the sliding seat (222); The battery housing is placed in the lower die guide plate (221); the pressing component (3) pushes the battery housing, the lower die 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, and the battery housing, the lower die guide plate (221), and the sliding seat (222) move upward together under the action of the return spring (223); the lifting assembly (23) is used to lift the battery housing; and automatic detection of the height of the battery housing is achieved.

2. The battery casing height automatic detection device according to claim 1, characterized in that: When inspecting battery shells of different models, the positions of the height measuring assembly (22) and the lifting assembly (23) are adjusted to adapt to changes in the length of the battery shell, and the pressing height of the pressing component (3) is adjusted to adapt to changes in the height of the battery shell; and different models of lower die guide plates (221) are replaced to adapt to changes in the width of the battery shell, thereby reducing the need to replace workpieces and improving work efficiency.

3. The battery casing height automatic detection device according to claim 1, characterized in that: The base (21) is a groove-shaped plate, and the bottoms of the height measuring assembly (22) and the lifting assembly (23) are installed in the groove, so that the positions of the height measuring assembly (22) and the lifting assembly (23) can match battery shells of different models.

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

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

6. The battery casing height automatic 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 shell, and compare and analyze it with the standard data of the battery shell, and then judge the unqualified battery shell according to the height deviation of the battery shell.

7. The battery casing height automatic detection device according to claim 1, characterized in that: The pressing component (3) comprises a driving motor (31), a ball screw (32), and a pressing plate (33); the driving motor (31) controls the upward and downward movement of the pressing plate (33) through the ball screw (32); the pressing plate (33) contacts the upper surface of the battery housing to achieve downward movement of the battery housing.

8. The battery casing height automatic detection device according to claim 1, characterized in that: The lifting assembly (23) comprises a lifting cylinder seat (231), a lifting cylinder (232), and a lifting plate (233), and is used to detect the resetting of the rear battery housing.

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

10. The battery casing height automatic detection device according to claim 6, characterized in that: The number of the displacement sensors (41) is two, which are arranged on the left and right adjustment bases (225) respectively, and are used to detect the up and down displacement of the sliding bases (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 housing.

11. The battery casing height automatic detection device according to claim 6, characterized in that: The control component includes an alarm module, and when the number of battery shells determined to be unqualified reaches 3, the alarm module is activated.

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