A friction welding device and method for a battery box

Abstract

The present invention discloses a friction welding device and method for a battery box, belonging to the technical field of welding. The following solution is now proposed. It includes a welding device, and a friction welding mechanism is arranged on the welding device. In the present invention, the motor drives the first gear and the second gear to transmit power, so that the upper section drives the welding head to rotate through the cutting component to realize the friction welding operation of the battery box. During the linear welding process, the second gear also drives the third gear to transmit power, so that the curved rod drives the movable frame to reciprocate, and the movable strip drives the dust suction part to swing through the second rotating rod. In this way, not only can the suction area be increased to avoid the residue of welding materials, but also the dust suction part can drive the brush to swing during the swing, and the brush can clean the burrs remaining after welding, so as to meet the requirement of leveling the welded battery box, improve the processing efficiency. Secondly, the recycling machine can be used to recycle the welding materials, so as to avoid damaging the battery box caused by secondary clamping.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and particularly to a friction welding device and method for a battery box. Background Art

[0002] During the welding process of a battery box, friction stir welding is often used. The friction stir welding device can linearly weld multiple connecting seams of the battery box, and can achieve a fully firm linear weld for the battery box. However, after welding, burrs will appear at the position where the weld is formed and its vicinity, and it is not convenient to clean and collect the flash during the welding process. The flash remains on the surface of the battery box. When the fixture performs secondary clamping, it is easy to cause wear to the surface of the battery box, and it also needs to be cleaned after processing, which is very inconvenient. In addition, a keyhole will be left after friction stir welding, and the additional filling of the keyhole also increases the processing procedures, which will increase a lot of labor and time, resulting in low processing efficiency.

[0003] In view of the above problems, the present invention document proposes a friction welding device and method for a battery box. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages that after welding, burrs will appear at the position where the weld is formed and its vicinity, and it is not convenient to clean and collect the flash during the welding process. The flash remains on the surface of the battery box. When the fixture performs secondary clamping, it is easy to cause wear to the surface of the battery box, and it also needs to be cleaned after processing, which is very inconvenient. In addition, a keyhole will be left after friction stir welding, and the additional filling of the keyhole also increases the processing procedures, which will increase a lot of labor and time, resulting in low processing efficiency, and to propose a friction welding device and method for a battery box.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A friction welding device for a battery box includes a welding device, and a friction welding mechanism is arranged on the welding device;

[0007] The friction welding mechanism includes a recycling component. A reciprocating motion component is arranged below the recycling component. A driving component is arranged inside the recycling component. The driving component is connected to a detachable welding component. The driving component drives the detachable welding component to rotate to perform welding operations. The driving component is also in transmission with the reciprocating motion component to drive the brush in the recycling component to swing for cleaning operations, and the recycling component recycles welding materials for subsequent cutting operations;

[0008] The detachable welding assembly passes through from below the reflux assembly. A jacking assembly is connected to the detachable welding assembly. A cutting assembly penetrates through the detachable welding assembly. A spiral strip is further arranged above the interior of the detachable welding assembly. The jacking assembly drives the detachable assembly, enabling the spiral strip to cooperate with the cutting assembly to rotate, achieving the cutting and crushing of the welding material, and also achieving the purpose of automatically filling the keyhole.

[0009] Preferably, the recycling assembly includes a recycling box, which is connected to the driving end of the welding equipment. A filter screen is arranged inside the recycling box. One side of the recycling box communicates with a recycling machine, which is fixedly installed on the recycling box. The recycling machine also communicates with a recycling pipe, which is a flexible pipe. The bottom end of the recycling pipe communicates with a dust suction part, and a brush is fixedly connected below the dust suction part.

[0010] Preferably, the reciprocating motion assembly includes a curved rod, the top end of which is fixedly connected with a third gear. The curved rod is rotatably installed on the recycling box through a bearing. The curved rod is arranged in a movable frame, and one side of the movable frame is fixedly connected with a movable strip, and one end of the movable strip is fixedly connected with the dust suction part.

[0011] Preferably, a second rotating rod is fixedly connected above the movable strip, and the second rotating rod is rotatably installed on the recycling box through a bearing.

[0012] Preferably, the driving assembly includes a fixed seat, which is fixedly connected in the recycling box. A motor is fixedly connected above the fixed seat. The output shaft of the motor is fixedly connected with a first gear, which meshes with a second gear, and the second gear meshes with the third gear;

[0013] A third sleeve is fixedly connected inside the second gear, and the third sleeve is rotatably installed in the recycling box through a bearing.

[0014] Preferably, the detachable welding assembly includes a welding head, the top end of which is butted against a middle section. A plurality of heat conducting sheets are arranged inside the middle section. The top end of the middle section is sleeved in a fixed sleeve, and the middle section is installed in the fixed sleeve through bolts.

[0015] Preferably, the fixed sleeve is fixedly connected to the upper section. The spiral strip is fixedly connected in the upper section. The top end of the upper section is fixedly connected with a recycling box, which is located in the recycling box. The recycling box, the upper section and the middle section are communicated with each other. A plurality of convex edges are fixedly connected outside the upper section, and the upper section slides in the third sleeve and the first sleeve through the convex edges. The first sleeve is rotatably installed in the recycling box through a bearing.

[0016] Preferably, the cutting assembly includes a first rotating rod, upper and lower spiral blades are respectively and fixedly connected to the upper and lower ends of the first rotating rod, the welding head is installed at the bottom end of the first rotating rod through bolts, the top end of the first rotating rod is fixedly connected with a cutter post, the cutter post is rotatably installed on the filter screen through a bearing, a plurality of blades are fixedly connected to the outside of the cutter post, and the blades are located above the filter screen;

[0017] Both sides of the first rotating rod are fixedly connected with driving ends, one end of the driving end is an arc edge, and the arc edge of the driving end is slidably connected to the spiral bar.

[0018] Preferably, the jacking assembly includes a second sleeve, the second sleeve is fixedly connected to the outside of the upper section, the second sleeve is rotatably installed on the connecting piece through a bearing, an electric push rod is fixedly connected below the connecting piece, and the electric push rod is fixedly installed in the recycling box.

[0019] A use method of a friction welding device for a battery box includes the following steps:

[0020] S1. When performing friction welding on the battery box, the welding mechanism is controlled by the welding equipment to be positioned on the battery box. At this time, the motor is controlled to drive the first gear to rotate. The first gear is in transmission with the second gear. The second gear drives the upper section to rotate through the third sleeve. The upper section drives the middle section to rotate. Moreover, the upper section also drives the first rotating rod to rotate through the spiral bar and the driving end. The first rotating rod drives the welding head to rotate. Then, the welding head welds the battery box by the rotational friction heating method, and the welding equipment drives the welding head to move forward for welding operation;

[0021] S2. During the linear welding process, the second gear also drives the third gear to rotate. The third gear drives the driving crank to rotate. The crank drives the movable frame to reciprocate, so that the movable frame drives the movable strip to swing reciprocally. The movable strip drives the dust suction part and the brush to swing, so that the brush cleans the burrs remaining after welding. At this time, the recycling machine operates to recycle the welding material after welding into the recycling box. Since the rotation of the first rotating rod also drives the cutter post and the blades to rotate, the blades cut and crush the welding material, so that the cut welding material falls into the recycling box;

[0022] S3. After the linear welding is completed, the electric push rod is controlled to extend at this time. The electric push rod drives the upper section and the middle section to move upward through the connecting piece, separating the middle section from the welding head. Moreover, the upper section controls the driving end to rotate through the spiral strip, the driving end drives the upper spiral plate to rotate, and the upper spiral plate conveys the cut welding material in the recovery box downward into the middle section. During the high-speed rotation process of the middle section, heat is generated by friction to heat the welding material in the middle section, making the welding material in a molten liquid state. At this time, the lower spiral plate rotates, conveying the remaining molten welding material in the original middle section downward into the keyhole, thereby completing the filling of the keyhole left by welding. After the filling is completed, the welding head is controlled to rise through the welding equipment to perform the welding operation of the next section.

[0023] Compared with the prior art, the present invention provides a friction welding device and method for a battery box, having the following beneficial effects:

[0024] 1. For the friction welding device and method of the battery box, the motor drives the first gear and the second gear to transmit power, enabling the upper section to drive the welding head to rotate through the cutting assembly to perform the friction welding operation on the battery box. And during the linear welding process, the second gear also drives the third gear to transmit power, enabling the curved rod to drive the movable frame to reciprocate, and the movable strip drives the dust suction part to swing through the second rotating rod. In this way, not only can the suction area be increased to avoid the residue of the welding material, but also the dust suction part can drive the brush to swing, and the brush can clean the burrs remaining after welding, meeting the requirement of leveling the welded battery box, improving the processing efficiency. Secondly, cooperating with the recycling machine can achieve the purpose of recycling the welding material, thereby avoiding damage to the battery box caused by secondary clamping.

[0025] 2. For the friction welding device and method of the battery box, the motor drives the first gear and the second gear to transmit power, the second gear drives the third sleeve to drive the upper section to rotate, enabling the upper section to drive the middle section to rotate, generating frictional heat between the middle section and the battery box. Moreover, with the rapid increase in heat during high-speed movement, the welding material in the middle section can be heated, making the welding material in a molten liquid state. Then, the electric push rod controls the upper section to drive the middle section to move upward away from the welding head. At the same time, the spiral strip controls the driving end to drive the first rotating rod to rotate, enabling the lower spiral plate to convey the molten welding material downward and smoothly fill it into the keyhole along the welding head, thereby achieving the purpose of automatically filling the keyhole.

[0026] 3. The friction welding device and method for the battery box drive the first gear and the second gear to transmit through a motor, so that the second gear and the third gear transmit. In this way, the curved rod drives the movable bar to swing through the movable frame, so that the brush removes the burrs after welding, and the recycling machine recycles the welding material into the recycling box. Since the middle section rotates, the first rotating rod can also be driven to rotate through the spiral bar and the driving end, so that the blade rotates to cut and crush the burrs, making the welding material into smaller particles, which is beneficial to subsequent hot melting operations. And the upper spiral sheet can smoothly convey the welding material and put it into the middle section. When the lifting component lifts the upper section and the middle section upward, the lower spiral sheet can fill the molten welding material into the keyhole. Thus, this method can use the raw materials remaining after welding to fill and seal the keyhole, without separate filling, reducing material waste and lowering the processing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A three-dimensional view of a friction welding device and method for a battery box proposed by the present invention;

[0028] Figure 2 A three-dimensional view of a friction welding mechanism of a friction welding device and method for a battery box proposed by the present invention;

[0029] Figure 3 A three-dimensional view of a cross-section of a friction welding mechanism of a friction welding device and method for a battery box proposed by the present invention;

[0030] Figure 4 A three-dimensional view of a partial structure in a friction welding mechanism of a friction welding device and method for a battery box proposed by the present invention;

[0031] Figure 5 A three-dimensional view of a reciprocating motion component of a friction welding device and method for a battery box proposed by the present invention;

[0032] Figure 6 A three-dimensional view of a driving component of a friction welding device and method for a battery box proposed by the present invention;

[0033] Figure 7 A three-dimensional view of a cross-section of a detachable welding component of a friction welding device and method for a battery box proposed by the present invention;

[0034] Figure 8 A three-dimensional view of a cutting component of a friction welding device and method for a battery box proposed by the present invention;

[0035] Figure 9 A three-dimensional view of the separation of the welding head and the first rotating rod of a friction welding device and method for a battery box proposed by the present invention;

[0036] Figure 10Stereoscopic view of the recycling box of a friction welding device and method for a battery box proposed by the present invention;

[0037] Figure 11 Cross-sectional view of the middle section and the upper section of a friction welding device and method for a battery box proposed by the present invention, split;

[0038] In the figure: 100, welding equipment; 200, friction welding mechanism; 201, recycling component; 2011, recycling box; 2012, recycling machine; 2013, recycling pipe; 2014, dust suction part; 2015, filter screen; 2016, brush; 202, detachable welding component; 2021, welding head; 2022, middle section; 2023, fixed sleeve; 2024, heat conducting sheet; 2025, upper section; 2026, first sleeve; 2027, convex edge; 203, driving component; 2031, first gear; 2032, motor; 2033, fixed seat; 2034, second gear; 2035, third sleeve; 204, cutting component; 2041, cutter post; 2042, blade; 2043, upper spiral sheet; 2044, driving end; 2045, first rotating rod; 2046, lower spiral sheet; 205, recycling box; 206, lifting component; 2061, electric push rod; 2062, connecting piece; 2063, second sleeve; 207, reciprocating motion component; 2071, third gear; 2072, curved rod; 2073, movable frame; 2074, second rotating rod; 2075, movable strip; 208, spiral strip. Detailed implementation manners

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0040] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0041] Example 1: Refer to Figures 1-6 and Figure 11 , a friction welding device for a battery box, including welding equipment 100, and a friction welding mechanism 200 is provided on the welding equipment 100;

[0042] The friction welding mechanism 200 includes a recycling component 201. The recycling component 201 includes a recycling box 2011. The recycling box 2011 is connected to the driving end 2044 of the welding device 100. A filter screen 2015 is arranged inside the recycling box 2011. The filter screen 2015 can weld large-particle welding materials until the welding materials are broken to meet the aperture size of the filter screen 2015, enabling the welding materials to be smoothly dropped downward. One side of the recycling box 2011 is communicated with a recycling machine 2012. The recycling machine 2012 can smoothly achieve the purpose of recycling welding materials through a dust suction part 2014. The recycling machine 2012 is fixedly installed on the recycling box 2011. The recycling machine 2012 is also communicated with a recycling pipe 2013. The recycling pipe 2013 is a flexible pipe. The recycling pipe 2013 can guide the welding materials to be conveyed upward. And the recycling pipe 2013 is a flexible pipe, enabling the dust suction part 2014 to move smoothly. The bottom end of the recycling pipe 2013 is communicated with the dust suction part 2014. A brush 2016 is fixedly connected below the dust suction part 2014. The brush 2016 can play a role in cleaning the burrs remaining after welding. A reciprocating motion component 207 is arranged below the recycling component 201. The reciprocating motion component 207 includes a crank rod 2072. The top end of the crank rod 2072 is fixedly connected with a third gear 2071. The crank rod 2072 is rotatably installed on the recycling box 2011 through a bearing. The crank rod 2072 is arranged in a movable frame 2073. The bottom end of the crank rod 2072 is bent. And the opening on the movable frame 2073 can provide a moving space for the crank rod 2072, enabling the crank rod 2072 to rotate smoothly. And the crank rod 2072 can drive the movable frame 2073 to reciprocate. One side of the movable frame 2073 is fixedly connected with a movable bar 2075. One end of the movable bar 2075 is fixedly connected with the dust suction part 2014. Through the dust suction part 2014, the welding materials can be smoothly recycled into the recycling box 2011. A second rotating rod 2074 is fixedly connected above the movable bar 2075. The second rotating rod 2074 is rotatably installed on the recycling box 2011 through a bearing. The second rotating rod 2074 can rotate smoothly through the bearing. And the second rotating rod 2074 can provide a center point for the movable bar 2075, enabling the movable bar 2075 to swing smoothly. A driving component 203 is arranged inside the recycling component 201. The driving component 203 includes a fixed seat 2033. The fixed seat 2033 is fixedly connected in the recycling box 2011. A motor 2032 is fixedly connected above the fixed seat 2033. The fixed seat 2033 can fix the motor 2032 to ensure the stability of the motor 2032. The output shaft of the motor 2032 is fixedly connected with a first gear 2031. The first gear 2031 meshes with a second gear 2034. Through the transmission between the first gear 2031 and the second gear 2034, the third sleeve 2035 can be driven to rotate. The second gear 2034 meshes with the third gear 2071. Through the transmission between the second gear 2034 and the third gear 2071, the crank rod 2072 can be driven to rotate.The interior of the second gear 2034 is fixedly connected with a third sleeve 2035, and the third sleeve 2035 is sleeved on the upper section 2025, so that the upper section 2025 can slide smoothly in the third sleeve 2035. The third sleeve 2035 is rotatably installed in the recycling box 2011 through a bearing. The driving component 203 is connected to the detachable welding component 202, and the driving component 203 drives the detachable welding component 202 to rotate to realize the welding operation. The driving component 203 also drives the reciprocating motion component 207 to drive the brush 2016 in the reflow component to swing for cleaning operations, and the recycling component 201 recycles the solder for subsequent cutting operations;

[0043] The detachable soldering assembly 202 passes through the bottom of the reflow assembly. The detachable soldering assembly 202 includes a soldering head 2021. The top end of the soldering head 2021 is butted with a middle section 2022. The middle section 2022 is provided with a plurality of heat conducting sheets 2024. The heat generated by friction can be guided into the middle section 2022 through the heat conducting sheets 2024, so as to heat the solder. The top end of the middle section 2022 is sleeved in a fixing sleeve 2023. The middle section 2022 is mounted on the fixing sleeve by bolts. In 2023, the middle section 2022 can be connected to the welding head 2021 through a sealing layer, so as to maintain sealing. The detachable welding component 202 is connected with a lifting component 206, and the cutting component 204 runs through the detachable welding component 202. A spiral bar 208 is also arranged above the inside of the detachable welding component 202. The lifting component 206 drives the detachable component to make the spiral bar 208 rotate in coordination with the cutting component 204, thereby achieving the cutting and crushing of the welding material and also realizing the purpose of automatically filling the keyhole.

[0044] In this embodiment: the motor 2032 drives the first gear 2031 and the second gear 2034 to transmit, so that the upper section 2025 drives the welding head 2021 to rotate through the cutting assembly 204 to realize the friction welding operation of the battery box, and in the linear welding process, the second gear 2034 also transmits with the third gear 2071, so that the curved rod 2072 drives the movable frame 2073 to reciprocate, and the movable bar 2075 drives the dust suction part 2014 to swing through the second rotating rod 2074, so that not only the suction area can be increased to avoid the residual welding material, but also the dust suction part 2014 can swing to drive the brush 2016 to swing, and the brush 2016 can clean the burrs remaining after welding, meet the leveling treatment of the battery box after welding, and improve the processing efficiency. Secondly, the recycling machine 2012 can be used to achieve the purpose of recycling the welding material, thereby avoiding the damage to the battery box caused by secondary clamping.

[0045] Example 2: Reference Figures 6-11, a friction welding device for a battery box, comprising a driving assembly 203. The driving assembly 203 includes a fixed seat 2033 which is fixedly connected in the recycling box 2011. Above the fixed seat 2033, a motor 2032 is fixedly connected. The output shaft of the motor 2032 is fixedly connected with a first gear 2031. The first gear 2031 meshes with a second gear 2034, and the second gear 2034 meshes with a third gear 2071. Inside the second gear 2034, a third sleeve 2035 is fixedly connected. The third sleeve 2035 is rotatably installed in the recycling box 2011 through a bearing;

[0046] The lifting assembly 206 includes a second sleeve 2063 which is fixedly connected outside the upper section 2025. The second sleeve 2063 is rotatably installed on a connecting piece 2062 through a bearing. The second sleeve 2063 can rotate smoothly through the bearing, enabling the upper section 2025 to rotate smoothly. Below the connecting piece 2062, an electric push rod 2061 is fixedly connected. The telescopic movement of the electric push rod 2061 can drive the second sleeve 2063 to achieve longitudinal movement through the connecting piece 2062, thereby driving the upper section 2025 to move up and down. The electric push rod 2061 is fixedly installed in the recycling box 2011;

[0047] The detachable welding assembly 202 includes a welding head 2021. The top end of the welding head 2021 is butted against a middle section 2022. A sealing layer can be filled between the welding head 2021 and the middle section 2022 for butt joint, thereby increasing the sealing performance. Inside the middle section 2022, a plurality of heat conducting sheets 2024 are arranged. The top end of the middle section 2022 is sleeved in a fixed sleeve 2023. The middle section 2022 is installed in the fixed sleeve 2023 through bolts. The position of the middle section 2022 can be fixed through the bolts, enabling a stable connection between the middle section 2022 and the upper section 2025. The fixed sleeve 2023 is fixedly connected to the upper section 2025. A spiral bar 208 is fixedly connected in the upper section 2025. The top end of the upper section 2025 is fixedly connected with a recycling box 205 which can store the cut and crushed welding material. The recycling box 205 is located in the recycling box 2011. The recycling box 205, the upper section 2025 and the middle section 2022 are communicated. Outside the upper section 2025, a plurality of convex edges 2027 are fixedly connected. The upper section 2025 slides in the third sleeve 2035 and the first sleeve 2026 through the convex edges 2027. The upper section 2025 can slide smoothly in the third sleeve 2035 and the first sleeve 2026. At the same time, the inside of the third sleeve 2035 is fitted with the convex edges 2027, so that the rotation of the third sleeve 2035 can drive the upper section 2025 to rotate smoothly. The first sleeve 2026 is rotatably installed in the recycling box 2011 through a bearing;

[0048] The cutting assembly 204 includes a first rotating rod 2045. Upper and lower ends of the first rotating rod 2045 are respectively and fixedly connected with an upper spiral piece 2043 and a lower spiral piece 2046. The upper spiral piece 2043 can smoothly convey the welding material into the middle section 2022, and the lower spiral piece 2046 can convey the molten welding material into the keyhole, so as to fill the keyhole. The welding head 2021 is installed at the bottom end of the first rotating rod 2045 through bolts. The welding head 2021 can be stably connected with the first rotating rod 2045 through bolts, and the removal operation of the welding head 2021 can also be realized. The top end of the first rotating rod 2045 is fixedly connected with a cutter post 2041. The cutter post 2041 is rotatably installed on the filter net 2015 through a bearing. A plurality of blades 2042 are fixedly connected to the outside of the cutter post 2041. The blades 2042 are located above the filter net 2015. The welding material can be cut and crushed by the rotation of the blades 2042, so that the welding material is in a small particle state, which is convenient for subsequent heating of the welding material to be in a molten state. Driving ends 2044 are fixedly connected to both sides of the first rotating rod 2045. One end of the driving end 2044 is an arc edge, and the arc edge of the driving end 2044 is slidably connected to the spiral bar 208. During the movement of the spiral bar 208, the spiral bar 208 can control the driving end 2044 to realize a rotational motion, so as to control the rotation of the first rotating rod 2045;

[0049] In this embodiment: The first gear 2031 is driven by the motor 2032 to be in transmission with the second gear 2034. The second gear 2034 drives the third sleeve 2035 to drive the upper section 2025 to rotate, so that the upper section 2025 drives the middle section 2022 to rotate, generating frictional heat between the middle section 2022 and the battery box. Moreover, the heat increases sharply during high-speed movement, so as to heat the welding material in the middle section 2022, making the welding material in a molten liquid state. Then, the electric push rod 2061 is used to control the upper section 2025 to drive the middle section 2022 to move upward away from the welding head 2021. At the same time, the spiral bar 208 is used to control the driving end 2044 to drive the first rotating rod 2045 to rotate, so that the lower spiral piece 2046 conveys the molten welding material downward and smoothly fills the keyhole along the welding head 2021, so as to achieve the purpose of automatically filling the keyhole.

[0050] Example 3: Refer to Figure 3 、 Figures 5-6 and Figure 8 A friction welding device for a battery box includes a cutting assembly 204. The cutting assembly 204 includes a first rotating rod 2045. Upper and lower ends of the first rotating rod 2045 are respectively and fixedly connected with an upper spiral piece 2043 and a lower spiral piece 2046. Driving ends 2044 are fixedly connected to both sides of the first rotating rod 2045. One end of the driving end 2044 is an arc edge, and the arc edge of the driving end 2044 is slidably connected to the spiral bar 208;

[0051] The recycling component 201 includes a recycling bin 2011. The recycling bin 2011 is connected to the driving end 2044 of the welding device 100. A filter screen 2015 is arranged inside the recycling bin 2011. One side of the recycling bin 2011 is communicated with a recycling machine 2012. The recycling machine 2012 is fixedly installed on the recycling bin 2011. The recycling machine 2012 is also communicated with a recycling pipe 2013. The recycling pipe 2013 is a flexible pipe. The bottom end of the recycling pipe 2013 is communicated with a dust suction part 2014. A brush 2016 is fixedly connected below the dust suction part 2014;

[0052] The reciprocating motion component 207 includes a curved rod 2072. The top end of the curved rod 2072 is fixedly connected with a third gear 2071. The curved rod 2072 is rotatably installed on the recycling bin 2011 through a bearing. The curved rod 2072 is arranged in a movable frame 2073. One side of the movable frame 2073 is fixedly connected with a movable strip 2075. One end of the movable strip 2075 is fixedly connected with the dust suction part 2014. A second rotating rod 2074 is fixedly connected above the movable strip 2075. The second rotating rod 2074 is rotatably installed on the recycling bin 2011 through a bearing;

[0053] The driving component 203 includes a fixed seat 2033. The fixed seat 2033 is fixedly connected in the recycling bin 2011. A motor 2032 is fixedly connected above the fixed seat 2033. The output shaft of the motor 2032 is fixedly connected with a first gear 2031. The first gear 2031 meshes with a second gear 2034. The second gear 2034 meshes with the third gear 2071. A third sleeve 2035 is fixedly connected inside the second gear 2034. The third sleeve 2035 is rotatably installed in the recycling bin 2011 through a bearing.

[0054] In this embodiment: The first gear 2031 is driven by the motor 2032 to drive the second gear 2034, so that the second gear 2034 drives the third gear 2071. In this way, the curved rod 2072 drives the movable strip 2075 to swing through the movable frame 2073, so that the brush 2016 removes the burrs after welding. And the recycling machine 2012 recovers the welding material into the recycling bin 2011. Since the middle section 2022 rotates, the first rotating rod 2045 can also be driven to rotate by the spiral strip 208 and the driving end 2044, so that the blade 2042 rotates to cut and crush the burrs, making the welding material in smaller particles, which is beneficial to subsequent hot melting operations. And the upper spiral blade 2043 can smoothly convey the welding material and put it into the middle section 2022. When the lifting component lifts the upper section 2025 and the middle section 2022 upward, the lower spiral blade 2046 can fill the molten welding material into the keyhole. Thus, this method can utilize the remaining raw materials after welding to fill and seal the keyhole, without the need for separate filling, and reduces material waste and processing costs.

[0055] A method for using a friction welding device for a battery box, comprising the following steps:

[0056] S1. When performing friction welding on the battery box, the welding mechanism is controlled by the welding device 100 to be positioned on the battery box. At this time, the motor 2032 is controlled to drive the first gear 2031 to rotate. The first gear 2031 is in transmission with the second gear 2034. The second gear 2034 drives the upper section 2025 to rotate through the third sleeve 2035. The upper section 2025 drives the middle section 2022 to rotate. Moreover, the upper section 2025 also drives the first rotating rod 2045 to rotate through the spiral bar 208 and the driving end 2044. The first rotating rod 2045 drives the welding head 2021 to rotate. Then, the welding head 2021 welds the battery box by means of rotational friction heating. And the welding device 100 drives the welding head 2021 to move forward to perform the welding operation;

[0057] S2. During the linear welding process, the second gear 2034 also drives the third gear 2071 to rotate. The third gear 2071 drives the driving crank 2072 to rotate. The crank 2072 drives the movable frame 2073 to reciprocate, causing the movable frame 2073 to drive the movable bar 2075 to swing reciprocally. The movable bar 2075 drives the dust collection part 2014 and the brush 2016 to swing, so that the brush 2016 cleans the burrs remaining after welding. At this time, the recycler 2012 operates to recycle the welding material after welding into the recycling box 2011. Since the first rotating rod 2045 also drives the cutter post 2041 and the blade 2042 to rotate during the rotation process, the blade 2042 cuts and crushes the welding material, causing the cut welding material to fall into the recycling box 205;

[0058] S3. After the linear welding is completed, at this time, the electric push rod 2061 is controlled to extend. The electric push rod 2061 drives the upper section 2025 and the middle section 2022 to move upward through the connecting piece 2062, separating the middle section 2022 from the welding head 2021. Moreover, the upper section 2025 controls the driving end 2044 to rotate through the spiral bar 208. The driving end 2044 drives the upper spiral piece 2043 to rotate. The upper spiral piece 2043 conveys the cut welding material in the recycling box 205 downward into the middle section 2022. During the high-speed rotation of the middle section 2022, heat is generated by friction to heat the welding material in the middle section 2022, making the welding material in a molten liquid state. At this time, the lower spiral piece 2046 rotates to convey the remaining molten welding material in the original middle section 2022 downward into the keyhole, thereby completing the filling of the keyhole left by the welding. After the filling is completed, the welding device 100 controls the welding head 2021 to rise to perform the welding operation for the next section.

[0059] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A battery box friction welding device, comprising a welding device (100), characterized in that: The welding device (100) is provided with a friction welding mechanism (200); The friction welding mechanism (200) comprises a recovery component (201), a reciprocating component (207) is arranged below the recovery component (201), a driving component (203) is arranged inside the recovery component (201), the driving component (203) is connected to the detachable welding component (202), the driving component (203) drives the detachable welding component (202) to rotate to achieve welding operation, the driving component (203) is also driven by the reciprocating component (207) to drive the brush (2016) in the recovery component (201) to swing to perform cleaning operation, and the recovery component (201) recovers the welding material for subsequent cutting operation; The detachable welding component (202) passes through the bottom of the recovery component (201); a lifting component (206) is connected to the detachable welding component (202); a cutting component (204) passes through the detachable welding component (202); a spiral bar (208) is also provided above the inside of the detachable welding component (202); the lifting component (206) drives the detachable welding component (202) to make the spiral bar (208) cooperate with the cutting component (204) to rotate, thereby achieving the purpose of cutting and crushing the welding material and automatically filling the keyhole; The recycling component (201) comprises a recycling box (2011), the recycling box (2011) is connected to the driving end (2044) of the welding device (100), and a filter screen (2015) is arranged inside the recycling box (2011); The detachable welding assembly (202) comprises a welding head (2021), the top end of the welding head (2021) is butted against a middle section (2022), and a plurality of heat conducting sheets (224) are arranged inside the middle section (2022); The cutting assembly (204) comprises a first rotating rod (2045), the upper and lower ends of the first rotating rod (2045) are respectively fixedly connected with an upper spiral sheet (2043) and a lower spiral sheet (2046), the welding head (2021) is mounted on the bottom end of the first rotating rod (2045) by means of bolts, the top end of the first rotating rod (2045) is fixedly connected with a knife column (2041), the knife column (2041) is rotatably mounted on the filter screen (2015) by means of a bearing, a plurality of blades (2042) are fixedly connected to the outside of the knife column (2041), and the blades (2042) are located above the filter screen (2015); Both sides of the first rotating rod (2045) are fixedly connected to driving ends (2044), one end of the driving end (2044) is an arc edge, and the arc edge of the driving end (2044) is slidably connected to the spiral strip (208).

2. A battery box friction welding device according to claim 1, characterized in that: One side of the recycling box (2011) is connected to a recycling machine (2012), the recycling machine (2012) is fixedly mounted on the recycling box (2011), the recycling machine (2012) is also connected to a recycling pipe (2013), the recycling pipe (2013) is a hose, the bottom end of the recycling pipe (2013) is connected to a dust suction part (2014), and the bottom of the dust suction part (2014) is fixedly connected to a brush (2016).

3. A battery box friction welding device according to claim 2, characterized in that: The reciprocating motion component (207) comprises a curved rod (2072), the top end of the curved rod (2072) is fixedly connected to a third gear (2071), the curved rod (2072) is rotatably mounted on the recovery box (2011) via a bearing, the curved rod (2072) is arranged in a movable frame (2073), one side of the movable frame (2073) is fixedly connected to a movable bar (2075), and one end of the movable bar (2075) is fixedly connected to the dust collection part (2014).

4. A battery box friction welding device according to claim 3, characterized in that: A second rotating rod (2074) is fixedly connected above the movable bar (2075), and the second rotating rod (2074) is rotatably mounted on the recovery box (2011) via a bearing.

5. A battery box friction welding device according to claim 3, characterized in that: The driving assembly (203) comprises a fixing seat (2033), the fixing seat (2033) is fixedly connected in the recycling box (2011), a motor (2032) is fixedly connected above the fixing seat (2033), an output shaft of the motor (2032) is fixedly connected to a first gear (2031), the first gear (2031) is meshed with a second gear (2034), and the second gear (2034) is meshed with a third gear (2071); A third sleeve (2035) is fixedly connected to the interior of the second gear (2034), and the third sleeve (2035) is rotatably mounted in the recovery box (2011) via a bearing.

6. A battery box friction welding device according to claim 5, characterized in that: The top end of the middle section (2022) is sleeved in the fixing sleeve (2023), and the middle section (2022) is installed in the fixing sleeve (2023) by means of bolts.

7. A battery box friction welding device according to claim 6, characterized in that: The fixed sleeve (2023) is fixedly connected to the upper section (2025), the spiral strip (208) is fixedly connected in the upper section (2025), a recovery box (205) is fixedly connected to the top of the upper section (2025), the recovery box (205) is located in the recovery box (2011), the recovery box (205), the upper section (2025) and the middle section (2022) are connected, a plurality of convex edges (2027) are fixedly connected to the outside of the upper section (2025), the upper section (2025) slides in the third sleeve (2035) and the first sleeve (2026) via the convex edges (2027), and the first sleeve (2026) is rotatably mounted in the recovery box (2011) via a bearing.

8. A battery box friction welding device according to claim 7, characterized in that: The lifting assembly (206) comprises a second sleeve (2063), the second sleeve (2063) is fixedly connected to the outside of the upper section (2025), the second sleeve (2063) is rotatably mounted on a connecting member (2062) via a bearing, an electric push rod (2061) is fixedly connected below the connecting member (2062), and the electric push rod (2061) is fixedly mounted in a recovery box (2011).

9. A method for using a friction welding device for a battery box according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. When friction welding of a battery box is performed, the welding mechanism is controlled by the welding device (100) to be on the battery box. At this time, the control motor (2032) drives the first gear (2031) to rotate, the first gear (2031) and the second gear (2034) are driven, the second gear (2034) drives the upper section (2025) to rotate through the third sleeve (2035), the upper section (2025) drives the middle section (2022) to rotate, and the upper section (2025) also drives the first rotating rod (2045) to rotate through the spiral strip (208) and the driving end (2044), the first rotating rod (2045) drives the welding head (2021) to rotate, and the welding head (2021) welds the battery box by means of rotational friction heating, and the welding device (100) drives the welding head (2021) to move forward to perform the welding operation; S2, during the linear welding process, the second gear (2034) also drives the third gear (2071) to rotate, the third gear (2071) drives the driving crankshaft (2072) to rotate, the crankshaft (2072) drives the movable frame (2073) to reciprocate, so that the movable frame (2073) drives the movable bar (2075) to swing back and forth, the movable bar (2075) drives the dust suction part (2014) and the brush (2016) to swing, so that the brush (2016) cleans the burrs remaining from the welding, and at this time the recycling machine (2012) operates to recycle the welding material into the recycling box (2011), because the rotation process of the first rotating rod (2045) also drives the knife column (2041) and the blade (2042) to rotate, the blade (2042) cuts and crushes the welding material, so that the cut welding material falls into the recycling box (205); S3. After the linear welding is completed, the electric push rod (2061) is controlled to extend, and the electric push rod (2061) drives the upper section (2025) and the middle section (2022) to move upward through the connecting piece (2062), so that the middle section (2022) is separated from the welding head (2021), and the upper section (2025) controls the driving end (2044) to rotate through the spiral strip (208), and the driving end (2044) drives the upper spiral plate (2043) to rotate, and the upper spiral plate (2043) cuts the recovery box (205). The soldering material is then transported downward to the middle section (2022), where it undergoes a high-speed rotation process, generating heat through friction to heat the soldering material in the middle section (2022), so that the soldering material is in a molten liquid state. At this time, the lower spiral sheet (2046) rotates to transport the remaining molten soldering material in the original middle section (2022) downward to the keyhole, thereby completing the filling of the keyhole left by the welding. After the filling is completed, the welding head (221) is controlled by the welding equipment (100) to rise to perform the next stage of welding.

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