A post-weld milling device for battery trays

Abstract

The application discloses a post-welding milling device for a battery tray and relates to the technical field of milling devices, which comprises a milling box, a bottom box and a battery tray body, a supporting assembly is installed at the inner bottom of the milling box, and the battery tray body is placed at the upper end of the supporting assembly. The application has a reasonable structure design, can stably fix the battery tray body on the supporting plate, avoids movement of the battery tray body during the milling process, and performs milling work on the battery tray body through a milling assembly. During the milling process, the battery tray body can be adjusted in rotation and orientation, thereby facilitating milling work on multiple welding edges of the battery tray body, without the need of repeatedly fixing the battery tray body, meeting different milling requirements, and being capable of sucking the milling debris into a dust collection box for centralized collection, avoiding scattering of the debris during the milling process and affecting the working environment quality, and being beneficial to subsequent centralized treatment of the debris.

Description

Technical Field

[0001] This invention relates to the field of milling apparatus technology, and more particularly to a post-weld milling apparatus for battery trays. Background Technology

[0002] Current battery module designs typically consist of multiple batteries and a battery tray. The battery tray is essentially a frame assembled and welded from multiple aluminum plates, with the batteries fixed within it. Therefore, the overall structure of the battery tray and the precision of its welding process directly affect the normal and stable operation of the battery module and even the entire new energy vehicle. Due to the welding principle, a burr edge is usually formed on both sides of the weld seam after welding. The conventional practice is to manually grind off the burrs after welding, or to deburr the welded parts on a milling machine (not limited to milling machines).

[0003] For example, the application document with publication number CN209465906U, entitled "A Welding and Milling Composite Equipment for Manufacturing Battery Trays," includes a bed, a worktable mounted on the bed and movable along the X-axis, a gantry mounted on the bed, a base mounted on the gantry and movable along the Y-axis, a stirring head mounted on the base for welding seams, and a rotary drive component one for driving the stirring head to rotate. A milling head for milling burrs at the weld seam after welding the stirring head and a rotary drive component two for driving the milling head to rotate are also installed at any point on the bed, gantry, or base… In this application document, milling is performed using a single milling head positioned above the worktable, which is insufficient to meet the milling needs of different positions. When milling different positions, the battery tray needs to be removed and re-clamped, which is cumbersome and affects work efficiency. Therefore, we designed a post-weld milling device for battery trays to solve these problems. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a post-weld milling device for battery trays. This device can stably fix the battery tray body on a support plate, preventing movement of the battery tray body during milling. The milling assembly performs milling work on the battery tray body. During milling, the battery tray body can rotate to adjust its orientation, facilitating milling of multiple welded edges without repeated fixing of the battery tray body. This meets different milling requirements and allows for the collection of milling debris into a dust collection box, preventing debris from scattering during milling and affecting the working environment quality, and facilitating subsequent centralized processing of the debris.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A post-welding milling device for battery trays includes a milling box, a base box, and a battery tray body. A support assembly is installed at the bottom of the milling box, and the battery tray body is placed on top of the support assembly. A limiting assembly for fixing the battery tray body is fixedly connected inside the milling box. The support assembly and the limiting assembly can work together to fix the battery tray body and drive it to rotate. Milling assemblies are installed on the top, bottom, and inner sidewall of the milling box away from the limiting assembly. A partition is detachably installed inside the base box, and a dust collection box located below the partition is pulled out and connected inside the base box. Multiple dust collection assemblies communicating with the interior of the milling box are installed through the partition.

[0007] Preferably, the support assembly includes a first L-shaped plate fixedly connected to the rear side wall of the milling box. The first L-shaped plate has an installation cavity, in which a first motor is installed. The output shaft of the first motor is fixedly connected to a rotating rod. The rotating rod passes through the inner top of the installation cavity and extends to the top of the first L-shaped plate. The upper end of the rotating rod is fixedly connected to a support plate, and the battery tray body is placed on the upper end of the support plate.

[0008] Preferably, the limiting component includes a second L-shaped plate fixedly connected to the rear side wall inside the milling box. The side wall of the second L-shaped plate is provided with a guide groove. A horizontal plate driven by a first cylinder is vertically slidably connected in the guide groove. A U-shaped plate with an opening facing downward is rotatably connected to the bottom of the horizontal plate. Two symmetrically arranged L-shaped connecting frames are horizontally slidably connected in the U-shaped plate. Limiting plates are fixedly connected to the side walls of the two L-shaped connecting frames. A servo motor is installed on the side wall of the U-shaped plate. A double-ended screw is fixedly connected to the end of the output shaft of the servo motor and rotatably connected to the inner side wall of the other end of the U-shaped plate. The double-ended screw is threaded through the two L-shaped connecting frames.

[0009] Preferably, the milling assembly includes a first electric slide rail mounted on the top of the milling box, a first electric slider adapted to the first electric slide rail is slidably connected inside the first electric slide rail, a second electric slide rail perpendicular to the first electric slide rail is fixedly connected to the bottom of the first electric slider, a second electric slider adapted to the second electric slide rail is slidably connected inside the second electric slide rail, a second cylinder is fixedly connected to the bottom of the second electric slider, a second motor is fixedly connected to the telescopic end of the second cylinder, a milling cutter head is fixedly connected to the end of the output shaft of the second motor, a dust collection hood is movably connected to the second motor, a spring is fixedly connected inside the dust collection hood, and one end of the spring is connected to an inner cover. The inner cover is slidably connected to the dust collection hood through the spring, and a dust collection assembly is provided on the second electric slide rail.

[0010] Preferably, the dust collection assembly includes a cross-shaped bracket fixed to a second electric slide rail by bolts. A dust collection box is fixedly connected to the cross-shaped bracket. An L-shaped plate is fixedly connected inside the dust collection box, dividing the dust collection box into two chambers: an adsorption chamber on one side and a collection chamber on the other. The bottom of the adsorption chamber and the collection chamber are formed by the L-shaped plate as a material sliding port. An electric telescopic rod is provided on the outer surface of the L-shaped plate. A scraper is connected to the output end of the electric telescopic rod. A magnetic plate is embedded inside the L-shaped plate. A dust collection pump is connected to the outside of the dust collection box. One end of the dust collection pump penetrates the inside of the dust collection box, and the other end is connected to a suction pipe. One end of the suction pipe is provided with an arc-shaped groove, which penetrates into the inside of the inner cover.

[0011] Preferably, the dust collection box has a polygonal structure with a certain tilt angle at the end near the L-shaped plate, and the scraper also has a polygonal structure and a certain tilt angle. The tilt angle of the dust collection box at the end near the L-shaped plate matches the tilt angle of the scraper.

[0012] Preferably, the arc-shaped groove tubes are provided in two sets, symmetrically arranged inside the inner cover.

[0013] Compared with the prior art, the beneficial effects of this invention are as follows:

[0014] 1. This post-weld milling device for battery trays places the battery tray body on the upper end of the support plate, causing two L-shaped connecting brackets to extend the limiting plate into the battery tray body and abut against its inner bottom, pressing the battery tray body tightly against the support plate, and causing the two L-shaped connecting brackets to move away from each other and abut against the inner side walls of both ends of the battery tray body, which can stably fix the battery tray body on the support plate and prevent the battery tray body from moving during the milling process.

[0015] 2. This milling device for welding battery trays has a milling component that can perform milling work on the battery tray body. During the milling process, the first motor drives the rotating rod to rotate, thereby allowing the support plate, battery tray body and U-shaped plate to rotate and adjust the orientation of the battery tray body. This facilitates the milling of multiple welded edges of the battery tray body without the need to repeatedly fix the battery tray body, thus meeting different milling requirements.

[0016] 3. During the milling process, the second cylinder drives the milling cutter head to move towards the battery tray body, so that the inner cover abuts against the tray. The inner cover is connected to the dust collection cover by a spring. By moving, it can completely cover the milling area. When milling, the dust pump is activated. The arc-shaped groove tube blocks the iron filings and enters the dust collection box through the suction pipe for collection, realizing automatic adsorption and cleaning of waste filings, avoiding the inconvenience of cleaning caused by waste filings splashing around and the damage caused by waste filings getting into the eyes of the staff. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the internal cross-sectional structure of a post-welding milling device for a battery tray proposed in this invention.

[0018] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0019] Figure 3 for Figure 1 Enlarged view of the structure at point B in the middle;

[0020] Figure 4 for Figure 3 Enlarged view of the structure at point C.

[0021] In the diagram: 1. Milling box; 2. Base box; 3. Battery tray body; 4. First L-shaped plate; 5. First motor; 6. Rotating rod; 7. Support plate; 8. Second L-shaped plate; 9. Guide groove; 10. Horizontal plate; 11. First cylinder; 12. U-shaped plate; 13. L-shaped connecting frame; 14. Limiting plate; 15. Servo motor; 16. Double-headed screw; 17. First electric slide rail; 18. Second electric slide rail; 19. Second electric slider; 20. Second cylinder; 21. Second motor; 22. Milling cutter head; 23. Cross; 24. Dust collection box; 25. L-shaped plate; 26. Electric telescopic rod; 27. Scraper; 28. Magnetic plate; 29. ​​Dust pump; 30. Suction pipe; 31. Arc-shaped groove pipe; 32. Dust collection hood; 33. Inner cover. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] Reference Figures 1-4 A post-welding milling device for battery trays includes a milling box 1, a base box 2, and a battery tray body 3. Both the milling box 1 and the base box 2 have closed doors installed on their front sidewalls. A transparent observation window is installed through the closed door on the front sidewall of the milling box 1 to facilitate observation of the milling process inside the milling box 1. A support assembly is installed at the bottom inner side of the milling box 1. The battery tray body 3 is placed on top of the support assembly. The support assembly includes a first L-shaped plate 4 fixedly connected to the rear inner sidewall of the milling box 1. An installation cavity is opened in the first L-shaped plate 4, and a first motor 5 is installed inside the installation cavity. A rotating rod 6 is fixedly connected to the end of the output shaft of the first motor 5. The rotating rod 6 passes through the top inner side of the installation cavity and extends above the first L-shaped plate 4. A support plate 7 is fixedly connected to the upper end of the rotating rod 6. The battery tray body 3 is placed on top of the support plate 7. A first rubber pad is provided on the upper end of the support plate 7, which can buffer the battery tray body 3 and increase the friction between the support plate 7 and the battery tray body 3.

[0024] A limiting component is fixedly connected inside the milling box 1 to fix the battery tray body 3. The supporting component and the limiting component can work together to fix the battery tray body 3 and drive the battery tray body 3 to rotate. The limiting component includes a second L-shaped plate 8 fixedly connected to the rear side wall inside the milling box 1. The bottom of the first L-shaped plate 4 and the second L-shaped plate 8 are horizontal sections that extend back and forth and are fixedly connected to the inner side wall of the milling box 1. The side wall of the second L-shaped plate 8 is provided with a guide groove 9. A horizontal plate 10 driven by a first cylinder 11 is vertically slidably connected in the guide groove 9. The bottom of the horizontal plate 10 is rotatably connected to a U-shaped plate 12 with its opening facing downward. Two symmetrically arranged L-shaped connecting frames 13 are horizontally slidably connected in the U-shaped plate 12. The L-shaped connecting frames 13 and the inner side of the U-shaped plate 12 are connected to each other. The top and front and rear inner sidewalls abut against each other, so that the L-shaped connecting frame 13 can only slide horizontally within the U-shaped plate 12. The bottom of the L-shaped connecting frame 13 is inclined. The sidewalls of the two L-shaped connecting frames 13 are fixedly connected to the limit plate 14. The sidewall of the limit plate 14 is provided with a second rubber pad to increase the friction between it and the inner sidewall of the battery tray body 3 and to play a buffering role. The sidewall of the U-shaped plate 12 is equipped with a servo motor 15. The output shaft end of the servo motor 15 is fixedly connected to a double-headed screw 16 that is rotatably connected to the inner sidewall of the other end of the U-shaped plate 12. The double-headed screw 16 is threaded through the two L-shaped connecting frames 13. The servo motor 15 drives the double-headed screw 16 to rotate, which can make the two L-shaped connecting frames 13 move closer or further apart under the action of its thread engagement.

[0025] Milling components are installed on the inner top, inner bottom, and inner sidewall of the milling box 1 away from the limiting component. Each milling component includes a first electric slide rail 17 installed on the inner top of the milling box 1. A first electric slider adapted to the first electric slide rail 17 is slidably connected within it. A second electric slide rail 18, perpendicular to the first electric slide rail 17, is fixedly connected to the bottom of the first electric slider. The second electric slide rail 18 extends forward and backward and is offset vertically and backward from the second L-shaped plate 8 and the first L-shaped plate 4 to avoid interference during milling. A second electric slider 19 adapted to the second electric slide rail 18 is slidably connected within it. A laser sensor is installed on the second electric slider 19 to detect the position to be milled. A second cylinder 20 is fixedly connected to the bottom of the second electric slider 19. A second motor 21 is fixedly connected to the telescopic end of the second cylinder 20. A milling cutter head 22 is fixedly connected to the end of the output shaft of the machine 21. A dust collection cover 32 is movably connected to the second motor 21. A spring is fixedly connected inside the dust collection cover 32, and one end of the spring is connected to an inner cover 33. The inner cover 33 and the dust collection cover 32 are slidably connected through the spring. A dust collection component is provided on the second electric slide rail 18. The first electric slide rail 17 and the second electric slide rail 18 at the top and bottom of the milling box 1 work together to adjust the horizontal position and the front and back position of the milling cutter head 22. The first electric slide rail 17 and the second electric slide rail 18 on the inner side wall of the milling box 1 work together to adjust the vertical position and the front and back position of the milling cutter head 22. The second cylinder 20 drives the milling cutter head 22 to move towards the battery tray body 3. The second motor 21 drives the milling cutter head 22 to rotate, which can perform milling work on the welded battery tray body 3.

[0026] The dust collection assembly includes a crossbar 23 bolted to a second electric slide rail 18. A dust collection box 24 is fixedly connected to the crossbar 23. An L-shaped plate 25 is fixedly connected inside the dust collection box 24, dividing it into two chambers: an adsorption chamber and a collection chamber. The bottom of the adsorption and collection chambers forms a material inlet with the L-shaped plate 25. An electric telescopic rod 26 is provided on the outer surface of the L-shaped plate 25, and a scraper 27 is connected to the output end of the electric telescopic rod 26. A magnetic plate 28 is embedded inside the L-shaped plate 25. A dust pump 29 is connected to the outside of the dust collection box 24, with one end of the pump penetrating the interior of the dust collection box 24. The other end is connected to a suction pipe 30, one end of which is provided with an arc-shaped groove 31 that extends into the interior of the inner cover 33. The milling cutter head 22 is moved toward the battery tray body 3 by the second cylinder 20, so that the inner cover 33 abuts against the tray. The inner cover 33 is connected to the dust collection cover 32 by a spring, so it can completely cover the milling area by moving, and can completely intercept the waste chips. When milling, the dust pump 29 is started, and the arc-shaped groove 31 blocks the iron chips to avoid damage to the motor. The waste chips enter the dust collection box 24 through the suction pipe 30 and are adsorbed on the magnetic plate 28. The magnetic plate 28 can completely adsorb and collect the iron chips.

[0027] The dust collection box 24 has a polygonal structure and a certain tilt angle at the end near the L-shaped plate 25. The scraper 27 also has a polygonal structure and a certain tilt angle. The tilt angle of the dust collection box 24 near the L-shaped plate 25 matches the tilt angle of the scraper 27.

[0028] Two sets of arc-shaped grooves 31 are symmetrically arranged inside the inner cover 33. When all the iron filings are adsorbed onto the magnetic plate 28 and the collection is completed, the electric telescopic rod 26 is activated. The electric telescopic rod 26 drives the scraper 27 to scrape the iron filings on the magnetic plate 28 downwards. Since the tilt angle of the scraper 27 matches the tilt angle of one end of the dust collection box 24, the scraper 27 can push the iron filings on the magnetic plate 28 downwards, squeezing the scattered iron filings into strips or blocks. Then, the squeezed waste will enter the collection cavity through the sliding port for centralized collection.

[0029] The functional principle of this invention can be explained through the following operational methods:

[0030] In this invention, when the battery tray body 3 is welded and needs to be milled, the battery tray body 3 is placed on the upper end of the support plate 7. The first cylinder 11 is started to drive the horizontal plate 10 to move vertically so that the two L-shaped connecting brackets 13 and the limiting plate 14 extend into the battery tray body 3 and abut against its inner bottom. The battery tray body 3 is pressed tightly against the support plate 7. The servo motor 15 is started to drive the two double-headed screws 16 to rotate. Under the action of their thread engagement, the two L-shaped connecting brackets 13 can move away from each other and abut against the inner sidewalls of both ends of the battery tray body 3 respectively, fixing the battery tray body 3 on the support plate 7. The first rubber pad on the support plate 7 is squeezed to increase the friction between the support plate 7 and the battery tray body 3, ensuring the stability of the battery tray body 3 during the milling process.

[0031] The milling cutter heads 22 at the top and bottom of the milling box 1 can move and rotate vertically to mill the battery tray body 3. The milling cutter heads 22 on the inner side wall of the milling box 1 can move and rotate horizontally to mill the battery tray body 3. During the milling process, the first motor 5 drives the rotating rod 6 to rotate, thereby the support plate 7, the battery tray body 3 and the U-shaped plate 12 can rotate to adjust the orientation of the battery tray body 3, so that multiple welding edges of the battery tray body 3 can be milled without repeatedly fixing the battery tray body 3, thus meeting different milling requirements.

[0032] During the milling process, the second cylinder 20 drives the milling cutter head 22 to move towards the battery tray body 3, so that the inner cover 33 abuts against the tray. The inner cover 33 is connected to the dust collection cover 32 by a spring. Therefore, by moving, it can completely cover the milling area and completely intercept the waste chips. When milling, the dust pump 29 is started, and the arc-shaped groove tube 31 blocks the iron chips to avoid the iron chips causing jamming and damage to the motor output end. The waste chips enter the collection chamber of the dust collection box 24 through the suction pipe 30 and are adsorbed on the magnetic plate 28. The magnetic plate 28 can completely adsorb and collect the iron chips.

[0033] When all the iron filings are collected on the magnetic plate 28, the electric telescopic rod 26 is activated. The electric telescopic rod 26 drives the scraper 27 to scrape the iron filings on the magnetic plate 28 downwards. Because the tilt angle of the scraper 27 matches the tilt angle of one end of the dust collection box 24, the scraper 27 can squeeze the iron filings on the magnetic plate 28 downwards, squeezing the scattered iron filings into strips or blocks. The squeezed waste will then enter the collection chamber through the sliding port for centralized collection. After the process is completed, the user can open the collection chamber to remove and dispose of the squeezed waste. The above settings can avoid the problem of waste splashing and causing inconvenience in cleaning and damage to workers' eyes, while ensuring a clean production environment.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A post-weld milling apparatus for a battery tray, comprising a milling box (1), a base box (2), and a battery tray body (3), characterized in that, A support assembly is installed at the bottom of the milling box (1), and the battery tray body (3) is placed on the upper end of the support assembly. A limiting assembly for fixing the battery tray body (3) is fixedly connected inside the milling box (1). The support assembly and the limiting assembly can work together to fix the battery tray body (3) and drive the battery tray body (3) to rotate. Milling assemblies are installed on the top, bottom and inner sidewall of the milling box (1) at the end away from the limiting assembly. The milling assembly includes a first electric slide rail (17) installed on the top of the milling box (1). A first electric slider adapted to the first electric slide rail (17) is slidably connected inside the first electric slide rail (17). A second electric slide rail (18) perpendicular to the first electric slide rail (17) is fixedly connected to the bottom of the first electric slider. A second electric slider (19) adapted to the second electric slide rail (18) is slidably connected inside the second electric slide rail (18). A second cylinder (20) is fixedly connected to the bottom of the second electric slider (19). A second motor (21) is fixedly connected to the telescopic end of the second cylinder (20). A milling cutter head (22) is fixedly connected to the end of the output shaft of the second motor (21). A dust collection cover (32) is movably connected to the second motor (21). A spring is fixedly connected inside the dust collection cover (32), and one end of the spring is connected to an inner cover body (33). The inner cover body (33) is slidably connected to the dust collection cover (32) through the spring. A dust collection assembly is provided on the second electric slide rail (18). The dust collection assembly includes a cross (23) bolted to a second electric slide rail (18). A dust collection box (24) is fixedly connected to the cross (23). An L-shaped plate (25) is fixedly connected inside the dust collection box (24). The L-shaped plate (25) divides the dust collection box (24) into two chambers: one is an adsorption chamber, and the other is a collection chamber. The bottom of the adsorption chamber and the collection chamber are formed by the L-shaped plate (25) forming a material outlet. An electric motor is provided on the outer surface of the L-shaped plate (25). Telescopic rod (26), the output end of the electric telescopic rod (26) is connected to a scraper (27), the L-shaped plate (25) is inlaid with a magnetic plate (28), the dust collection box (24) is connected to a dust pump (29) on the outside, one end of the dust pump (29) penetrates the inside of the dust collection box (24), and the other end is connected to a suction pipe (30), one end of the suction pipe (30) is provided with an arc-shaped groove pipe (31), and the arc-shaped groove pipe (31) penetrates into the inside of the inner cover (33); The dust collection box (24) has a polygonal structure and a certain tilt angle at one end near the L-shaped plate (25). The scraper (27) also has a polygonal structure and a certain tilt angle. The tilt angle of the dust collection box (24) near the L-shaped plate (25) matches the tilt angle of the scraper (27).

2. The post-welding milling apparatus for a battery tray according to claim 1, characterized in that, The support assembly includes a first L-shaped plate (4) fixedly connected to the rear side wall inside the milling box (1). The first L-shaped plate (4) has an installation cavity, in which a first motor (5) is installed. The output shaft of the first motor (5) is fixedly connected to a rotating rod (6). The rotating rod (6) passes through the top of the installation cavity and extends to the top of the first L-shaped plate (4). The upper end of the rotating rod (6) is fixedly connected to a support plate (7). The battery tray body (3) is placed on the upper end of the support plate (7).

3. The post-welding milling apparatus for a battery tray according to claim 1, characterized in that, The limiting component includes a second L-shaped plate (8) fixedly connected to the rear side wall inside the milling box (1). The side wall of the second L-shaped plate (8) is provided with a guide groove (9). A horizontal plate (10) driven by a first cylinder (11) is vertically slidably connected inside the guide groove (9). A U-shaped plate (12) with an opening facing downward is rotatably connected to the bottom of the horizontal plate (10). Two symmetrically arranged L-shaped connecting frames (13) are horizontally slidably connected inside the U-shaped plate (12). Limiting plates (14) are fixedly connected to the side walls of the two L-shaped connecting frames (13). A servo motor (15) is installed on the side wall of the U-shaped plate (12). A double-headed screw (16) is fixedly connected to the end of the output shaft of the servo motor (15) and rotatably connected to the inner side wall of the other end of the U-shaped plate (12). The double-headed screw (16) is threaded through the two L-shaped connecting frames (13).

4. The post-welding milling apparatus for a battery tray according to claim 1, characterized in that, The arc-shaped groove tube (31) is provided in two sets, symmetrically arranged inside the inner cover (33).

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