A method for pneumatic needle peening texturing

Abstract

The present invention provides a method for pneumatic needle peening texturing, which includes: controlling the action of the loading manipulator to convey the cell to be processed to the cell conveying component; controlling the action of the cell conveying component to convey the cell to the working area of the pneumatic needle component; and controlling the action of the pneumatic needle component to perform peening texturing on the surface of the cell. The method for pneumatic needle peening texturing of the present invention adopts the method of pneumatic needle peening to replace laser to achieve uniform texturing on the surface of the cell aluminum shell. It has low manufacturing cost and low energy consumption, greatly reduces the manufacturing cost and use cost of the cell aluminum shell texturing equipment, promotes the popularization and application of the UV spraying automatic line, and has high texturing efficiency while generating no hazardous wastes such as soot. The cell aluminum shell is textured as it passes through the pneumatic needle array.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cell production processes, and particularly to a method for pneumatic needle peening Background Art

[0002] A battery cell is the basic unit that constitutes a power battery and an energy storage battery; after the battery cells are connected in series or in parallel to form a battery module to become a power battery or an energy storage battery, its safety needs to be considered. The battery cell shell needs to be insulated and its insulation performance needs to meet certain requirements to avoid safety accidents such as thermal runaway of the battery cell caused by electric leakage.

[0003] Currently, the method of insulating battery cells by spraying insulating paint is favored for its high insulation performance, thermal conductivity, and production efficiency; however, since the aluminum shell of the battery cell is very shiny and it is difficult for the paint to adhere to the surface; peening treatment is required to achieve the adhesion of the paint. Laser can be used to engrave uniform small pits on the shell, but this method has disadvantages such as high cost, high energy consumption, and high maintenance cost. How to achieve low-cost and effective peening is a prerequisite for the insulating paint spraying process. Summary of the Invention

[0004] One of the purposes of the present invention is to provide a method for pneumatic needle peening to solve the above technical problems.

[0005] A method for pneumatic needle peening provided by an embodiment of the present invention includes:

[0006] Controlling the movement of the loading manipulator to grab the battery cell to be processed and transfer it to the battery cell conveying component;

[0007] Controlling the movement of the battery cell conveying component to convey the battery cell to the working area of the pneumatic needle component;

[0008] Controlling the movement of the pneumatic needle component to perform peening treatment on the surface of the battery cell.

[0009] Preferably, the battery cell conveying component includes: a conveyor belt and a plurality of battery cell fixtures arranged on the surface of the conveyor belt;

[0010] Among them, the battery cell fixture includes: a placement groove adapted to the end face where the electrode of the battery cell is located, and limiting bodies located on both sides of the placement groove; a buffer layer is provided on the side of the limiting body close to the battery cell placement groove;

[0011] The height of the limiting body at the front end of the conveying direction of the conveyor belt is less than the height of the limiting body at the rear end of the conveying direction of the conveyor belt.

[0012] Preferably, the height of the limiting body at the front end of the conveying direction of the conveyor belt is greater than or equal to one-half of the length of the battery cell and less than or equal to two-thirds of the length of the battery cell.

[0013] Preferably, the method for pneumatic needle peening further includes:

[0014] Control the actions of the blanking manipulator to remove the processed battery cells from the battery cell conveying assembly.

[0015] Preferably, the pneumatic needle peening method further includes:

[0016] Receive the images of the removed battery cells collected by the image acquisition device;

[0017] Analyze the images and adjust the control parameters of the battery cell conveying assembly and the pneumatic needle assembly according to the analysis results.

[0018] Preferably, the pneumatic needle assembly includes: a pair of symmetrically arranged air inlet plates and an air inlet plate arranged above the battery cell conveying assembly; a plurality of pneumatic needles are arranged on the side of the air inlet plate close to the battery cell conveying assembly; the air inlet plate is arranged as a cavity structure;

[0019] Among them, the pneumatic needle includes: a housing, a pneumatic chamber, a piston, a return spring and a steel needle; the pneumatic chamber is provided with an air inlet and an air outlet, the air outlet is arranged on the side of the housing, and the air inlet is arranged at one end of the housing far from the steel needle; the piston is arranged in the pneumatic chamber and is connected to the tail of the steel needle; the return spring is sleeved outside the steel needle; the tip of the steel needle protrudes from the housing.

[0020] Preferably, an air inlet plate arranged above the battery cell conveying assembly is configured on a lifting mechanism, and the lifting mechanism adjusts the distance between the air inlet plate and the battery cell conveying assembly.

[0021] Preferably, the pneumatic needles arranged on the symmetrically arranged air inlet plates are arranged obliquely.

[0022] Preferably, the two symmetrically arranged air inlet plates are respectively arranged on a transverse movement mechanism, and the transverse movement mechanism drives the air inlet plates to move to adjust the distance between the air inlet plates and the battery cell conveying assembly.

[0023] Preferably, the transverse movement mechanism includes:

[0024] Transverse movement tracks, two groups of transverse movement tracks are installed in parallel on the side mounting plates;

[0025] Transverse movement bottom plate, a transverse movement block slidably installed on the transverse movement tracks is installed at the bottom end of the transverse movement bottom plate;

[0026] Side fixing plate, the side fixing plate is vertically installed on the transverse movement bottom plate, and the air inlet plate is arranged on the side of the side fixing plate close to the battery cell conveying assembly.

[0027] The pneumatic needle peening method of the present invention uses the pneumatic needle peening method to replace the laser to achieve uniform peening of the surface of the battery cell aluminum shell. It has low manufacturing cost and low energy consumption, greatly reducing the manufacturing cost and use cost of the battery cell aluminum shell peening equipment, promoting the popularization and application of the UV spraying automatic production line, and having no hazardous waste such as soot generated. At the same time, the peening efficiency is high, and the battery cell aluminum shell is peened when it passes through the pneumatic needle array.

[0028] Other features and advantages of the present invention will be described in the following specification, and, in part, will be obvious from the specification, or will be understood by practicing the present invention. The objectives and other advantages of the present invention can be achieved and obtained by the structure specifically pointed out in the written specification and the drawings.

[0029] The technical solution of the present invention will be further described in detail below through the drawings and embodiments. Description of the Drawings

[0030] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0031] Figure 1 is a schematic diagram of a pneumatic needle peening method in an embodiment of the present invention;

[0032] Figure 2 is a schematic diagram of a battery cell fixture in an embodiment of the present invention;

[0033] Figure 3 is a perspective view of a device loaded with a pneumatic needle assembly in an embodiment of the present invention;

[0034] Figure 4 is a schematic structural diagram of a pneumatic needle assembly in an embodiment of the present invention;

[0035] Figure 5 is a distribution diagram of the pneumatic needle assembly on the air inlet plate in an embodiment of the present invention;

[0036] Figure 6 is corresponding to Figure 3 side view;

[0037] Figure 7 is corresponding to Figure 3 top view;

[0038] Figure 8 is corresponding to Figure 3 front view. Detailed Embodiments

[0039] The following describes the preferred embodiments of the present invention with reference to the drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0040] An embodiment of the present invention provides a method for pneumatic needle peening texturing, as Figure 1 shown, including:

[0041] Step 1: Control the feeding manipulator to move, and grab the battery cell to be processed onto the battery cell conveying component;

[0042] Step 2: Control the battery cell conveying component to move, and convey the battery cell to the working area of the pneumatic needle component;

[0043] Step 3: Control the pneumatic needle component to move, and perform peening texturing on the surface of the battery cell.

[0044] The method for pneumatic needle peening texturing of the present invention uses the method of pneumatic needle peening to replace laser to achieve uniform texturing of the surface of the aluminum shell of the battery cell. The manufacturing cost is low, the energy consumption is low, the manufacturing cost and use cost of the battery cell aluminum shell texturing equipment are greatly reduced, the popularization and application of the UV spraying automatic line are promoted, and there is no generation of hazardous wastes such as soot. At the same time, the texturing efficiency is high, and the texturing is completed when the battery cell aluminum shell passes through the pneumatic needle array.

[0045] In order to realize the conveyance of the battery cell, in one embodiment, the battery cell conveying component includes: a conveyor belt and a plurality of battery cell fixtures arranged on the surface of the conveyor belt; the feeding manipulator grabs the battery cell to be processed and places it into the battery cell fixture; the conveyor belt sequentially conveys the battery cell fixtures to the working area of the pneumatic needle component; and the pneumatic needle component performs texturing treatment;

[0046] Among them, as Figure 2 shown, the battery cell fixture includes: a placement groove adapted to the end face where the electrodes of the battery cell 3 are located, and limiting bodies 2 located on both sides of the placement groove; a buffer layer is provided on one side of the limiting body 2 close to the battery cell placement groove; the buffer layer can be configured as a sponge layer; on the one hand, it provides a buffering effect, and on the other hand, it provides a certain resistance when the battery cell deflects to achieve the effect of controllable flipping;

[0047] The height of the limiting body at the front end in the conveying direction of the conveyor belt 1 is less than the height of the limiting body at the rear end in the conveying direction of the conveyor belt 1.

[0048] For the consideration of the smoothness of the pushing of the limiting body 2 behind the battery cell on the battery cell, the height of the limiting body at the front end in the conveying direction of the conveyor belt 1 is greater than or equal to half of the length of the battery cell and less than or equal to two-thirds of the length of the battery cell. And the height of the other limiting body can be configured to be less than or equal to one-third of the length of the battery cell.

[0049] In order to realize the removal of the battery cell on the battery cell conveying component and ensure continuous operation, the method for pneumatic needle peening texturing further includes:

[0050] Control the discharging manipulator to move, and remove the processed battery cell from the battery cell conveying component.

[0051] To ensure the effective and stable operation of the operation and determine the quality of the operation, the pneumatic needle peening method further includes:

[0052] Receiving an image of the removed battery cell collected by an image acquisition device;

[0053] Analyzing the image, and adjusting the control parameters of the battery cell conveying assembly and the pneumatic needle assembly according to the analysis results. The blanking manipulator removes the battery cell from the battery cell conveying assembly and places it at the collection area of the image acquisition device. The image acquisition device collects the image of the battery cell, analyzes the image, and extracts the description parameters of the dot matrix after peening treatment; constructing a control analysis data set based on the description parameters and the pre-configured standard description parameters, and then retrieving the corresponding control parameter set from the pre-configured control library according to the control analysis data set; parsing the control parameter set to determine the control parameters for the battery cell conveying assembly and the pneumatic needle assembly; the description parameters include: the average value of the distances between each point in the dot matrix, the maximum value of the distances between each point in the dot matrix, the number of points per unit area, etc.; the control parameter set is formed by arranging the description parameters and the standard description parameters in sequence after corresponding association; the control library is pre-analyzed and constructed by professionals, and the control parameter sets in the library are in one-to-one correspondence with the control analysis data sets; for example: the adjustment method is to increase or decrease the speed of the battery cell conveying assembly, increase or decrease the vibration frequency of the pneumatic needle assembly, etc.;

[0054] Obtaining an image of the battery cell to be processed after adjustment, matching it with each standard image in the standard image library corresponding to the adjusted control parameter set, and outputting an alarm message when there is no matching item;

[0055] To further determine the content of the alarm message, the image can also be matched with the alarm images in the alarm analysis library, and the content corresponding to the matched alarm image is extracted and output.

[0056] In order to further achieve controllable flipping of the battery cell in the battery cell fixture, positioning posts can be provided in the grooves of the fixture. The positioning posts are sleeved in the air holes at the electrode ends of the battery cell. The positioning posts are arranged on the rotating platform, and the rotating platform drives the battery cell to rotate in the battery cell fixture; the image capturing device is a panoramic capturing device, that is, the battery cell is placed on a transparent tray for six-sided imaging, and then the images of each side are corresponding (the corresponding can be carried out with the air hole as a reference point), and then the points of each hair roughening are corresponding to the pneumatic needles and numbered. The images within a preset range around the points with the same number are extracted as the images to be analyzed, and N consecutive images to be analyzed are extracted as an analysis group; an analysis library configured in advance is used for analysis to determine whether the pneumatic needle is abnormal and the abnormal description; an abnormal prompt message including the abnormal description is output. Among them, the analysis library is constructed by professional personnel in advance. The standard image groups in the library are corresponding to the associated analysis results. The analysis results include: whether an abnormality occurs and the abnormal description corresponding to the occurrence of the abnormality; the images of the analysis group are corresponding to the images in the standard image group one by one and the similarity is calculated. When the similarities are all greater than the preset similarity threshold (any value between 0.80 and 1.0), the analysis results corresponding to the standard image group are retrieved. The installation position of the pneumatic needle is fixed, and the position where it strikes on the battery cell is also fixed. And due to the positioning posts, the initial positions of the battery cells can be unified. When the flipping directions are the same, after the images are unfolded and corresponding according to the positioning posts, it can be known which pneumatic needle the striking point at each position corresponds to; specifically, the striking points in the image can be numbered by constructing a numbering template, and the construction of the numbering template can be obtained through multiple tests. The test methods include: any pneumatic needle is retained on the pneumatic needle assembly, and the rest are blocked by the blocking mechanism, and then the battery cell is subjected to hair roughening treatment and photographed, and the position of the striking point corresponding to the pneumatic needle on the image can be obtained.

[0057] For more precise control of pneumatic hair roughening, the striking force of the pneumatic needle on the battery cell can be detected. When the striking force is greater than the preset first threshold or less than the preset second threshold, an alarm is output and the battery cell is marked; among them, the first threshold is greater than the second threshold; the detection of the striking force can set a pressure sensor between the return spring and the piston, and analyze the value detected by the pressure sensor.

[0058] In one embodiment, as Figures 3 to 8 shown, the pneumatic needle assembly 11 includes: a pair of symmetrically arranged intake plates 20, and one intake plate 20 arranged above the battery cell conveying assembly; a plurality of pneumatic needles 12 are arranged on the side of the intake plate 20 close to the battery cell conveying assembly; the intake plate 20 is arranged as a cavity structure;

[0059] Among them, the pneumatic needle 12 includes: a housing 13, a pneumatic chamber 14, a piston 17, a return spring 19, and a steel needle 18; the pneumatic chamber 14 is provided with an air inlet 15 and an air outlet 16, the air outlet 16 is arranged on the side of the housing 13, and the air inlet 15 is arranged at one end of the housing 13 away from the steel needle 18; the piston 17 is arranged in the pneumatic chamber 14 and is connected to the tail of the steel needle 18; the return spring 19 is sleeved outside the steel needle 18; the tip of the steel needle 18 protrudes from the housing 13. The steel needle 18 is installed in the housing 13 in a resetable manner through the return spring 19. When air is sent into the pneumatic chamber 14 from the air inlet 15, the pressure in the pneumatic chamber 14 increases, and the piston 17 drives the steel needle 18 to move in the contraction direction of the return spring 19. After the piston 17 passes over the air outlet 16, the pressure in the pneumatic chamber 14 is discharged through the air outlet 16, the pressure in the pneumatic chamber 14 decreases, and under the resetting action of the return spring 19, the piston 17 returns to its position in the pneumatic chamber 14;

[0060] The piston 17 located at the tail of the steel needle 18 is driven by the compressed air input from the air inlet 15 to move in the contraction direction of the return spring 19 against the elastic force of the return spring 19. When the piston 17 passes over the air outlet 16, the pneumatic chamber 14 communicates with the atmosphere and exhausts air outward through the air outlet 16, and the pressure in the pneumatic chamber 14 drops. When it is released to be lower than the elastic force of the return spring 19, the piston 17 is reset under the action of the elastic force of the return spring 19, and the steel needle 18 retracts into the pneumatic chamber 14; when the piston 17 retracts back and passes over the air outlet 16, the pneumatic chamber 14 is isolated from the atmosphere, and the pressure in the pneumatic chamber 14 rises again until it overcomes the elastic force of the return spring 19 to push the piston 17 to move in the contraction direction of the return spring 19 for the second time. Repeating like this, the steel needle realizes an oscillating action. As long as the air pressure, the distance between the battery cell aluminum shell and the steel needle 18 are adjusted appropriately, the steel needle 18 can engrave the required pits on the battery cell aluminum shell. When the battery cell aluminum shell and the steel needle 18 move relative to each other at a fixed speed, evenly spaced dotted lines can be engraved on the surface of the battery cell aluminum shell in the moving direction, thereby realizing the surface texturing treatment of the battery cell aluminum shell;

[0061] An air inlet plate arranged above the battery cell conveying assembly is configured on a lifting mechanism, and the lifting mechanism adjusts the distance between the air inlet plate 20 and the battery cell conveying assembly. The pneumatic needles 12 arranged on the symmetrically arranged air inlet plates 20 are arranged obliquely. The two symmetrically arranged air inlet plates 20 are respectively arranged on a transverse movement mechanism, and the transverse movement mechanism drives the air inlet plates 20 to move to adjust the distance between the air inlet plates 20 and the battery cell conveying assembly. Among them, the transverse movement mechanism includes: transverse movement tracks 22, and two groups of transverse movement tracks 22 are installed in parallel on the side mounting plates 21; a transverse movement bottom plate 23, and a transverse movement block slidably installed on the transverse movement tracks 22 is installed at the bottom end of the transverse movement bottom plate 23; a side fixing plate 24, and the side fixing plate 24 is vertically installed on the transverse movement bottom plate 23, and the air inlet plate 20 is arranged on the side of the side fixing plate 24 close to the battery cell conveying assembly. The transverse movement bottom plate 23 travels on the transverse movement tracks 22 through the transverse movement block, so as to realize the distance adjustment in the horizontal direction of the side fixing plate 24 installed on the transverse movement bottom plate 23 and the pneumatic needles 12 installed on the side fixing plate 24; in addition, a side strengthening plate 25 is installed at the outer end of the side fixing plate 24. The setting of the side strengthening plate 25 improves the connection strength between the side fixing plate 24 and the transverse movement bottom plate 23; a push-pull type clamp 26 adapted to the side mounting plate 21 is installed on the transverse movement bottom plate 23. The setting of the push-pull type clamp 26 facilitates the fixing of the transverse movement bottom plate 23 on the side mounting plate 21.

[0062] The pneumatic needles 12 on the three air inlet plates 20 complete the surface roughening treatment of the battery cell aluminum shell. The transverse movement mechanism can realize the transverse movement, and further realize the distance adjustment in the horizontal direction of the oppositely arranged air inlet plates. The lifting mechanism can realize the longitudinal movement of the air inlet plate arranged above, and further realize the distance adjustment in the vertical direction, so that for battery cell aluminum shells of different sizes and specifications, the pneumatic needles 12 can be adaptively attached to the surface of the battery cell aluminum shell;

[0063] The lifting mechanism includes: an upper fixing plate 27, and two optical axes 28 connected to the upper fixing plate 27 are installed on each side mounting plate 21; a lower lifting plate 29, the lower lifting plate 29 is located below the upper fixing plate 27 and is slidably installed on the optical axes 28, and the pneumatic needles 12 are installed at the bottom end of the lower lifting plate 29; a hand-operated handwheel type worm and screw lift 30, the hand-operated handwheel type worm and screw lift 30 is installed on the upper fixing plate 27 and is connected to the top end of the lower lifting plate 29. Manually rotate the hand-operated handwheel type worm and screw lift 30, so as to drive the lower lifting plate 29 to move up and down along the optical axes 28 below the upper fixing plate 27, and further drive the pneumatic needles 12 installed at the bottom end of the lower lifting plate 29 to adjust the distance in the vertical direction.

[0064] Since a pneumatic needle 12 can only obtain a dotted line of small indentations on the surface of the battery cell aluminum shell along the traveling direction, which is obviously far from enough for the surface texturing of the entire battery cell aluminum shell. To enhance the adhesion of the coating on the battery cell aluminum shell, it is desired that the small indentations on the surface of the battery cell aluminum shell be evenly distributed and have as high a density as possible. The outer diameter of a single pneumatic needle is usually above 25 mm. If the pneumatic needles 12 are arranged in a "horizontal and vertical" manner, the dot pitch engraved in the vertical direction will definitely be greater than or equal to 25 mm, resulting in a large blank area, i.e., an untextured area. In this case, only reciprocating translational engraving can be used, with low work efficiency and unable to meet the high-tempo requirements. Therefore, several pneumatic needles 12 of the present invention are arranged in an oblique line. In this way, a side-back offset of 1 mm is used between adjacent pneumatic needles 12 to achieve a column pitch of 1 mm. After engraving, a dot matrix with a dot pitch of 1 mm of small indentations is formed on the surface of the battery cell aluminum shell. The dot pitch in the traveling direction depends on the moving speed of the battery cell aluminum shell and the oscillation frequency of the pneumatic needles 12. As long as it is set appropriately, a dot matrix of small indentations that meets the requirements can be engraved, greatly enhancing the adhesion of the coating on the battery cell aluminum shell. During the specific texturing process, since the conveyor belt is moving, due to the impact of the pneumatic needles 12, a tiny turning force will be formed on the circumference, slightly rotating the battery cell to achieve continuous engraving;

[0065] In this way, when engraving with horizontal movement, a dotted horizontal line with a spacing of 1 mm can be engraved on the surface of the battery cell aluminum shell. The density of the dots on the same horizontal line depends on the moving speed of the battery cell aluminum shell relative to the pneumatic needle assembly. The slower the speed, the smaller the dot pitch on the same horizontal line and the higher the density. The vibration frequency of the pneumatic needle can reach 300 Hz. If the workpiece moving speed is 300 mm / s, the spacing of the small indentations engraved in the traveling direction is 1 mm.

[0066] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. A method for pneumatic needle peening texturing, characterized in that, Including: Controlling the feeding manipulator to act and grasping the battery cell to be processed to the battery cell conveying component; Controlling the battery cell conveying component to act and conveying the battery cell to the working area of the pneumatic needle component; Controlling the pneumatic needle component to act and performing a roughening treatment on the surface of the battery cell; Wherein, the battery cell conveying component includes: a conveyor belt and a plurality of battery cell fixtures arranged on the surface of the conveyor belt; Wherein, the battery cell fixture includes: a placement groove adapted to the end face where the electrode of the battery cell is located, and limiting bodies located on both sides of the placement groove; a buffer layer is provided on one side of the limiting body close to the battery cell placement groove; The height of the limiting body at the front end in the conveying direction of the conveyor belt is less than the height of the limiting body at the rear end in the conveying direction of the conveyor belt.

2. The pneumatic needle peening method according to claim 1, characterized in that The height of the limiting body at the front end in the conveying direction of the conveyor belt is greater than or equal to one-half of the length of the battery cell and less than or equal to two-thirds of the length of the battery cell.

3. The pneumatic needle peening method according to claim 1, characterized in that, Also including: Controlling the discharging manipulator to act and removing the processed battery cell from the battery cell conveying component.

4. The pneumatic needle peening method according to claim 3, characterized in that, Also including: Receiving the image of the removed battery cell collected by the image acquisition device; Analyzing the image and adjusting the control parameters of the battery cell conveying component and the pneumatic needle component according to the analysis result.

5. The pneumatic needle peening texturing method according to claim 1, characterized in that The pneumatic needle component includes: a pair of symmetrically arranged air inlet plates, and an air inlet plate arranged above the battery cell conveying component; a plurality of pneumatic needles are provided on one side of the air inlet plate close to the battery cell conveying component; the air inlet plate is arranged in a cavity structure; Wherein, the pneumatic needle includes: a housing, a pneumatic chamber, a piston, a return spring and a steel needle; the pneumatic chamber is provided with an air inlet and an air outlet, the air outlet is arranged on the side surface of the housing, and the air inlet is arranged at one end of the housing away from the steel needle; the piston is arranged in the pneumatic chamber and is connected to the tail of the steel needle; the return spring is sleeved outside the steel needle; the tip of the steel needle protrudes from the housing.

6. The pneumatic needle peening method according to claim 5, characterized in that The air inlet plate arranged above the battery cell conveying component is configured on a lifting mechanism, and the lifting mechanism adjusts the distance between the air inlet plate and the battery cell conveying component.

7. The pneumatic needle peening texturing method according to claim 5, characterized in that, The pneumatic needles arranged on the symmetrically arranged air inlet plates are arranged obliquely.

8. The pneumatic needle peening method according to claim 5, characterized in that The two symmetrically arranged air inlet plates are respectively arranged on a transverse movement mechanism, and the transverse movement mechanism drives the air inlet plate to act to adjust the distance between the air inlet plate and the battery cell conveying component.

9. The pneumatic needle peening method according to claim 8, characterized in that, The transverse movement mechanism includes: Transverse movement tracks, and two groups of transverse movement tracks are installed in parallel on the side mounting plates; A transverse movement bottom plate, and a transverse movement block slidably installed on the transverse movement tracks is installed at the bottom end of the transverse movement bottom plate; Side fixing plates, and the side fixing plates are vertically installed on the transverse movement bottom plate, and the air inlet plate is arranged on one side of the side fixing plate close to the battery cell conveying component.

Images