Inclined casting and welding integrated equipment for new energy automobile hub

Abstract

The invention provides new energy automobile hub inclined casting and welding integrated equipment, and relates to the technical field of automobile hub production and machining, the new energy automobile hub inclined casting and welding integrated equipment comprises a base and two linear guide rails, a multi-axis linkage numerical control machine tool is arranged above the base, one end of the base is provided with a mounting groove, and the other side of the top end of the base is fixedly connected with a mold support; a double-station welding assembly used for automatically switching welding modes is mounted on the multi-axis linkage numerical control machine tool, a material taking assembly is arranged in an inner cavity of the mounting groove, an inclined casting assembly used for hub casting is arranged in the middle of the mold support, and a feeding conveying belt is arranged at the end, close to the material taking assembly, of the middle of the top end of the base. Switching of different welding modes is achieved through the double-station welding assembly, the cast hub is transferred through the material taking assembly, feeding and discharging of the hub are achieved through automatic feeding and discharging operation, manual intervention is effectively reduced, and the integrated operation and working efficiency of equipment are improved.

Description

Technical Field

[0001] This invention relates to the field of automobile wheel hub production and processing technology, and in particular to an integrated equipment for tilt casting and welding of new energy vehicle wheel hubs. Background Technology

[0002] The wheel hub is a cylindrical metal component in a car tire that supports the axle. It is a key part connecting the brake drum, wheel disc, and half-shaft, and has a significant impact on vehicle performance, safety, and appearance. Therefore, the quality of the wheel hub has a significant impact on the driving performance of the car. Due to the high-speed performance and the safety of energy storage systems in new energy vehicles, wheel hubs are required to meet higher safety standards. With the growth of the automotive industry, especially the rise of new energy vehicles, the demand for wheel hubs continues to rise.

[0003] However, existing integrated equipment for tilt casting and welding of wheel hubs typically involves the coordinated use of tilt casting and welding equipment. There is no perfect connection structure between the two, requiring manual intervention to remove the wheel hub from the mold and transfer it to different processing stations. Furthermore, since the thickness varies at different locations on the wheel hub surface, different welding processes are required for welding at these different thicknesses. However, existing welding equipment used in conjunction with tilt casting equipment usually employs a single welding process, which cannot meet the diverse welding needs of wheel hubs. This may require additional equipment for secondary processing, reducing the efficiency of wheel hub production. Summary of the Invention

[0004] The problem that this invention aims to solve is that existing integrated equipment requires manual intervention and cannot meet the different welding process requirements of wheel hubs.

[0005] To address the aforementioned technical problems, this invention provides an integrated equipment for tilting casting and welding of wheel hubs for new energy vehicles. The equipment includes a base and two linear guide rails fixedly connected to one side of its top. A multi-axis CNC machine tool is mounted above the base. An installation groove is provided at one end of the base, and a mold support is fixedly connected to the other side of the top of the base. A dual-station welding assembly for automatically switching welding modes is mounted on the multi-axis CNC machine tool. A material handling assembly is provided within the cavity of the installation groove. A tilting casting assembly for wheel hub casting is located in the middle of the mold support. A feeding conveyor belt is located at the end of the top of the base near the material handling assembly. The dual-station welding assembly includes a mounting frame fixedly connected to a multi-axis linkage CNC machine tool. A turntable is rotatably connected to the bottom end of the mounting frame. Equipment racks are fixedly connected to both sides of the bottom end of the turntable. A laser welding device and a friction stir welding device are fixedly installed on the two equipment racks, respectively. The material handling assembly includes an L-shaped support frame rotatably connected to the inner cavity of the mounting groove. The bottom end of the inner wall of the L-shaped support frame has a groove, and a plurality of rolling rods are rotatably connected to the inner cavity of the groove. A buffer pad is fixedly connected to the inner side of the L-shaped support frame.

[0006] Preferably, a switching motor is fixedly installed in the middle of the inner cavity of the mounting frame, the output end of the switching motor passes through the mounting frame and is fixedly connected to the top of the turntable, two first wire-passing grooves are opened at the bottom of the mounting frame, and a second wire-passing groove is opened in the middle of the equipment frame.

[0007] Preferably, a tilting cylinder is installed on the top of the base near the L-shaped support frame, and a rotating connector is fixedly connected to the bottom of the L-shaped support frame. The extended end of the tilting cylinder is rotatably connected to the rotating connector.

[0008] Preferably, the tilting casting assembly includes a tilting table rotatably connected to the inner cavity of the mold support, a tilting casting mold is disposed in the middle of the tilting table, a fixed frame is fixedly connected to the top of the tilting table, two ejection cylinders are fixedly installed at the top of the inner cavity of the fixed frame, a tilting motor is installed at one end of the mold support, and the output end of the tilting motor passes through the mold support and is fixedly connected to one end of the tilting table.

[0009] Preferably, the inclined casting mold includes a base located at the bottom of the tilting table, a lower mold fixedly connected to the top center of the base, two side modules movably connected to the top of the lower mold, a spiral water cooling channel provided inside the lower mold, an upper mold provided at the top of the two side modules, and a pouring port opened at the central axis of the upper mold.

[0010] Preferably, the top of the tilting table has two through holes, the protruding end of the ejector cylinder passes through the through holes and is fixedly connected to the top of the base, and inclined guide posts are fixedly connected to both sides of the top of the base. An inclined guide groove is provided in the inner cavity of the side module, and the position and shape of the inclined guide post are adapted to the position and shape of the inner cavity of the inclined guide groove and are movably connected to its inner cavity.

[0011] Preferably, an automatic loading and unloading assembly for fixing the wheel hub is provided between the two linear guide rails, a welding table is provided at the top center of the base, and a unloading conveyor belt is provided at the end of the welding table away from the loading conveyor belt, and the automatic loading and unloading assembly is located above the welding table.

[0012] Preferably, the automatic loading and unloading assembly includes a support rod fixedly connected to the top of two linear guide rails. A through hole is provided in the middle of the support rod. Two sliding blocks are movably connected to the inner cavity of the through hole. A clamping arm is fixedly connected to the end of the sliding block away from the support rod. Two clamping rollers for clamping and fixing the hub are rotatably connected to the inner wall of the clamping arm.

[0013] Preferably, a protective box is fixedly installed at the end of the support rod away from the clamping arm. A bidirectional screw is rotatably connected to the inner cavity of the protective box. A variable pitch motor is fixedly installed at one end of the protective box. The output end of the variable pitch motor passes through the protective box and is fixedly connected to one end of the bidirectional screw. Two rollers are fixedly connected to the end of the sliding block near the protective box. The rollers are movably connected to the inner cavity of the threaded groove opened on the surface of the bidirectional screw.

[0014] The technical effects and advantages of this invention are as follows: 1. This invention achieves switching between different welding methods by using a dual-station welding assembly. Since the thickness varies at different locations on the wheel hub, different welding equipment with different welding methods is required for thin-walled areas and thick-walled joints. Depending on the welding position of the wheel hub structure, the output of the switching motor drives the turntable to rotate, realizing automatic switching between laser welding equipment and friction stir welding equipment. For thin-walled areas of the wheel hub, the laser welding equipment is used for welding, while for thick-walled joints, the friction stir welding equipment is used. By rotating and switching welding methods, the welding requirements of different parts of the wheel hub can be adapted. There is no need to use other welding equipment for secondary processing of the wheel hub, realizing the integration of wheel hub casting and welding.

[0015] 2. This invention utilizes a material handling component to transfer the cast wheel hub. First, based on the weight of the wheel hub and the direction of its fall, the tilt angle of the L-shaped support frame is adjusted to match the tilt angle of the tilting casting component. This ensures the wheel hub can accurately slide from the module onto the L-shaped support frame. Then, by shortening the extension of the tilting cylinder, the L-shaped support frame tilts towards the feeding conveyor belt until the lowest point of the L-shaped support frame is level with the top of the feeding conveyor belt. This causes the wheel hub to move in the tilting direction under the influence of gravity. As several rolling rods rotate, the wheel hub slides down to the top of the feeding conveyor belt. It continues to move as the feeding conveyor belt rotates, achieving automatic material handling and feeding. This effectively reduces manual intervention and better reflects the integrated design of the equipment.

[0016] This invention utilizes an automatic loading and unloading assembly to perform loading and unloading operations on wheel hubs. After the wheel hub moves from the picking assembly to the top of the loading conveyor belt, it is driven by a linear guide rail to move and clamp and fix the wheel hub at the top of the loading conveyor belt. After fixing, it moves to the welding table via the linear guide rail for welding. After welding, it continues to move to the top of the unloading conveyor belt for unloading. The entire process does not require manual intervention, effectively improving the integrated operation and work efficiency of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the dual-station welding assembly structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the material handling component structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the inclined casting component structure of the present invention.

[0021] Figure 5 This is a schematic cross-sectional view of the inclined casting component of the present invention.

[0022] Figure 6 This is a schematic diagram of the tilting casting mold of the present invention in use.

[0023] Figure 7 This is a schematic diagram of the automatic loading and unloading assembly of the present invention.

[0024] Figure 8 This is a schematic diagram of the overall cross-sectional structure of the present invention.

[0025] The attached figures are labeled as follows: 1. Base; 2. Linear guide rail; 3. Multi-axis CNC machine tool; 4. Mounting slot; 5. Mold support; 6. Dual-station welding assembly; 61. Mounting frame; 62. Turntable; 63. Equipment frame; 64. Laser welding equipment; 65. Friction stir welding equipment; 66. Switching motor; 67. First wire threading groove; 68. Second wire threading groove; 7. Material handling assembly; 71. L-shaped support frame; 72. Rolling rod; 73. Buffer pad; 74. Tilting cylinder; 75. Rotating connector; 8. Tilting casting assembly; 81. Tilting table; 82. Tilting casting mold 821. Base; 822. Lower mold; 823. Side module; 824. Spiral water-cooling channel; 825. Upper mold; 826. Sprue; 827. Inclined guide post; 828. Inclined guide groove; 83. Fixing frame; 84. Ejection cylinder; 9. Feeding conveyor belt; 10. Tilting motor; 11. Automatic loading and unloading assembly; 111. Support rod; 112. Sliding block; 113. Clamping arm; 114. Clamping roller; 115. Protective box; 116. Bidirectional screw; 117. Variable pitch motor; 118. Roller; 12. Welding table; 13. Unloading conveyor belt. Detailed Implementation

[0026] This invention provides an integrated equipment for tilt casting and welding of wheel hubs for new energy vehicles, such as... Figure 1 - Figure 8As shown, the system includes a base 1 and two linear guide rails 2 fixedly connected to one side of its top. A multi-axis linkage CNC machine tool 3 is installed above the base 1. An installation groove 4 is provided at one end of the base 1. A mold support 5 is fixedly connected to the other side of the top of the base 1. A dual-station welding assembly 6 for automatically switching welding modes is installed on the multi-axis linkage CNC machine tool 3. A material picking assembly 7 is provided in the inner cavity of the installation groove 4. An inclined casting assembly 8 for wheel hub casting is provided in the middle of the mold support 5. A feeding conveyor belt 9 is provided at the middle of the top of the base 1 near the material picking assembly 7.

[0027] Furthermore, such as Figure 1 and Figure 2 As shown, the dual-station welding assembly 6 includes a mounting frame 61 fixedly connected to a multi-axis CNC machine tool 3. A turntable 62 is rotatably connected to the bottom end of the mounting frame 61. Equipment frames 63 are fixedly connected to both sides of the bottom end of the turntable 62. A laser welding device 64 and a friction stir welding device 65 are fixedly mounted on the two equipment frames 63 respectively. The existing technologies of the multi-axis CNC machine tool 3 (referring to the existing Aerospace Craftsmanship high-precision five-axis engraving machine JX_M202010B), the laser welding device 64, and the friction stir welding device 65 are relatively mature and will not be elaborated on here. The laser welding device 64 and the friction stir welding device 65 are driven to move in multiple axes by the multi-axis CNC machine tool 3 to realize the welding operation of the laser welding device 64 and the friction stir welding device 65 on the wheel hub.

[0028] Furthermore, such as Figure 1 and Figure 3 As shown, the material handling assembly 7 includes an L-shaped support frame 71 rotatably connected to the inner cavity of the mounting groove 4. The bottom of the inner wall of the L-shaped support frame 71 is provided with a groove. Several rolling rods 72 are rotatably connected to the inner cavity of the groove. A buffer pad 73 is fixedly connected to the inner side of the L-shaped support frame 71. The buffer pad 73 is made of flexible material. The cast wheel hub slides out from the side of the inclined casting assembly 8 and moves to the top of several rolling rods 72 in the inclined direction. When it falls, it is cushioned by the buffer pad 73 to avoid the wheel hub from deforming or breaking due to excessive impact.

[0029] Furthermore, such as Figure 2As shown, a switching motor 66 is fixedly installed in the middle of the inner cavity of the mounting frame 61. The output end of the switching motor 66 passes through the mounting frame 61 and is fixedly connected to the top of the turntable 62. Two first wire-passing grooves 67 are opened at the bottom of the mounting frame 61, and a second wire-passing groove 68 is opened in the middle of the equipment frame 63. Since the thickness of different positions of the wheel hub is different, different welding equipment with different welding methods are required for the thin-walled area and the thick-walled connection. According to the different welding positions of the wheel hub structure, the switching motor 66 is started, and the output end of the switching motor 66 drives the turntable 62 to rotate, realizing laser welding. The automatic switching between the laser welding equipment 64 and the friction stir welding equipment 65 allows for different welding methods. For thin-walled areas of the wheel hub, the laser welding equipment 64 is used for welding, while for thick-walled joints, the friction stir welding equipment 65 is used. The welding method is switched by rotation to adapt to the welding requirements of different parts of the wheel hub. The laser welding equipment 64 and the friction stir welding equipment 65 are equipped with various connecting wires and other wire structures that are used. These wires pass through the second wire groove 68 and the first wire groove 67 to prevent the wires from falling off randomly and getting tangled when the turntable 62 rotates, which would affect the switching of the equipment.

[0030] Furthermore, such as Figure 3 and Figure 8 As shown, a tilting cylinder 74 is installed on the top of the base 1 near the L-shaped support frame 71. A rotating connector 75 is fixedly connected to the bottom of the L-shaped support frame 71. The extended end of the tilting cylinder 74 is rotatably connected to the rotating connector 75. First, the tilt angle of the L-shaped support frame 71 needs to be adjusted according to the weight of the wheel hub and the tilt direction of the wheel hub's fall, so that the tilt angle of the L-shaped support frame 71 is the same as that of the tilted casting component 8, ensuring that the wheel hub can accurately slide from the module onto the L-shaped support frame 71. During adjustment, the tilting cylinder 74 is activated, controlling the extension and retraction of the extended end of the tilting cylinder 74. Through the rotating connector 75, the L-shaped support frame 71 is rotated within the mounting groove 4 to adjust to a suitable tilt angle. After the hub is formed, it falls to the top of the L-shaped support frame 71. The extended end of the control tilting cylinder 74 is shortened, causing the L-shaped support frame 71 to tilt towards the feeding conveyor belt 9 until the lowest point of the L-shaped support frame 71 is level with the top of the feeding conveyor belt 9. Due to the weight of the hub, it will move in the tilting direction under the influence of gravity. Since the rolling rods 72 are rotatably connected, the hub will slide down with the rotation of several rolling rods 72 and move to one side of the top of the feeding conveyor belt 9. The feeding conveyor belt 9 starts at the same time. When one side of the hub contacts the feeding conveyor belt 9, it will continue to move with the rotation of the feeding conveyor belt 9, realizing automatic material picking and feeding operations, effectively reducing manual intervention.

[0031] Furthermore, such as Figure 1 and Figure 4As shown, the tilting casting assembly 8 includes a tilting table 81 rotatably connected to the inner cavity of the mold support 5. A tilting casting mold 82 is provided in the middle of the tilting table 81. A fixing frame 83 is fixedly connected to the top of the tilting table 81. Two ejection cylinders 84 are fixedly installed at the top of the inner cavity of the fixing frame 83. A tilting motor 10 is installed at one end of the mold support 5. The output end of the tilting motor 10 passes through the mold support 5 and is fixedly connected to one end of the tilting table 81. The wheel hub is cast through the tilting casting mold 82. The tilting angle of the tilting table 81 is adjusted according to the requirements of the wheel hub casting material. By tilting the tilting casting mold 82, the raw material melt flows along a specific path under the action of gravity, reducing the problem of insufficient filling in the corner area and reducing the cold shut or shrinkage defect rate. When adjustment is needed, the tilting motor 10 is started, and the tilting table 81 is driven to rotate through the tilting motor 10. The angle of the tilting table 81 is controlled to be adjusted between 10° and 15° according to the characteristics and temperature of different solutions.

[0032] Furthermore, such as Figure 4 and Figure 5 As shown, the inclined casting mold 82 includes a base 821 located at the bottom of the tilting table 81. A lower mold 822 is fixedly connected to the top center of the base 821. Two side modules 823 are movably connected to the top of the lower mold 822. A spiral water-cooling channel 824 is provided inside the lower mold 822. An upper mold 825 is provided at the top of the two side modules 823. A pouring port 826 is opened at the central axis of the upper mold 825. The cavity between the two side modules 823 and the lower mold 822 and the upper mold 825 is in the shape of a wheel hub. Molten casting material is injected through the pouring port 826. Due to the inclination of the inclined casting mold 82, the molten liquid flows along a specific path. After filling, the spiral water-cooling channel 824 built into the mold is connected to a water chiller that provides cooling water. The circulating cooling water accelerates the solidification of the wheel hub. The cooling time is dynamically adjusted according to the thickness of the wheel hub to ensure that the center temperature of the wheel hub is reduced and to avoid high-temperature deformation.

[0033] Furthermore, such as Figure 5 and Figure 6As shown, the top of the tilting table 81 has two through holes. The extended end of the ejector cylinder 84 passes through the through holes and is fixedly connected to the top of the base 821. Both sides of the top of the base 821 are fixedly connected to inclined guide posts 827. The inner cavity of the side module 823 has an inclined guide groove 828. The position and shape of the inclined guide post 827 match the position and shape of the inner cavity of the inclined guide groove 828, and it is movably connected to its inner cavity. After the hub cools down, the ejector cylinder 84 is activated, controlling the extended end of the ejector cylinder 84. The extension pushes the base 821 to move the lower mold 822 downward. As the base 821 moves downward, it also moves the inclined guide post 827 downward. The inclined guide post 827 moves obliquely along the inner cavity of the inclined guide groove 828, causing the two side modules 823 to move to both sides, so that the wheel hub that has cooled and formed in the cavity can be demolded. Since the inclined casting mold 82 is set at an inclination, the wheel hub after demolding will move in the inclination direction under the action of gravity and fall down onto the material picking component 7 for feeding operation.

[0034] Furthermore, such as Figure 1 and Figure 8 As shown, an automatic loading and unloading assembly 11 for fixing the wheel hub is provided between the two linear guide rails 2. A welding table 12 is provided at the top center of the base 1. A discharge conveyor belt 13 is provided at the end of the welding table 12 away from the loading conveyor belt 9. The automatic loading and unloading assembly 11 is located above the welding table 12. The linear guide rails 2 are existing technology and the existing technology is relatively mature, so they will not be described in detail here. The automatic loading and unloading assembly 11 is driven by the linear guide rails 2 to achieve horizontal linear movement on the welding table 12 and the discharge conveyor belt 13.

[0035] Furthermore, such as Figure 1 and Figure 7 As shown, the automatic loading and unloading assembly 11 includes a support rod 111 fixedly connected to the top of two linear guide rails 2. A through hole is formed in the middle of the support rod 111, and two sliding blocks 112 are movably connected to the inner cavity of the through hole. A clamping arm 113 is fixedly connected to the end of each sliding block 112 away from the support rod 111. Two clamping rollers 114 for clamping and fixing the hub are rotatably connected to the inner wall of the clamping arm 113. Two clamping rollers 114 are mounted on each clamping arm 113, symmetrically distributed on both sides of the hub. Simultaneously, the clamping arms 113 on both sides... The hub is clamped and fixed, providing support and limiting its displacement. First, the automatic loading and unloading assembly 11 is driven by the linear guide rail 2 to move towards the upward conveyor belt 9 to clamp and fix the hub at its top. After fixing, the automatic loading and unloading assembly 11 is driven by the linear guide rail 2 to move the hub to the top of the welding table 12. After the dual-station welding assembly 6 finishes welding the hub, the linear guide rail 2 continues to drive the automatic loading and unloading assembly 11 to move towards the downward conveyor belt 13 to unload the hub.

[0036] Furthermore, such as Figure 7 As shown, a protective box 115 is fixedly installed at the end of the support rod 111 away from the clamping arm 113. A double-acting screw 116 is rotatably connected to the inner cavity of the protective box 115. A variable-pitch motor 117 is fixedly installed at one end of the protective box 115. The output end of the variable-pitch motor 117 passes through the protective box 115 and is fixedly connected to one end of the double-acting screw 116. Two rollers 118 are fixedly connected to the end of the sliding block 112 near the protective box 115. The rollers 118 are movably connected to the inner cavity of the threaded groove on the surface of the double-acting screw 116. The opening and closing of the two clamping arms 113 are controlled by the variable-pitch motor 117 to achieve clamping and fixing of the wheel hub. The adjustment is made according to the specific specifications and dimensions of the wheel hub. When adjusting the distance between the two clamping arms 113, the variable pitch motor 117 is activated, which drives the bidirectional screw 116 to rotate. When the bidirectional screw 116 rotates, the roller 118 in the inner cavity of the threaded groove on its surface drives the sliding block 112 to move in the inner cavity of the through hole in the middle of the support rod 111. Since the helical directions on both sides of the surface of the bidirectional screw 116 are opposite, when the bidirectional screw 116 rotates, the roller 118 can drive the two sliding blocks 112 to achieve equal distance variable pitch operation, so that the two clamping arms 113 move the same distance, ensuring that the wheel hub always stays in the center position, and improving the accuracy and stability of the clamping and fixing position of the wheel hub.

[0037] The working principle of this invention is as follows: First, based on the properties and temperature of the raw materials used in wheel casting, the tilt angle of the tilting casting mold 82 is adjusted. During adjustment, the tilting motor 10 is activated, driving the tilting table 81 to rotate. The angle of the tilting table 81 is controlled between 10° and 15°. Simultaneously, the tilting cylinder 74 is activated to adjust the tilt angle of the L-shaped support frame 71 to be the same as the tilt angle of the tilting casting mold 82. After adjustment, the molten raw material is injected through the pouring port 826. The tilt of the tilting casting mold 82 causes the molten material to flow along a specific path. After filling, the spiral water-cooling channel 824 built into the mold is connected to a water chiller that provides cooling water. The circulating cooling water accelerates the solidification of the wheel hub. The cooling time depends on the thickness of the wheel hub. Dynamic adjustments are made to ensure that the center temperature of the wheel hub decreases, preventing high-temperature deformation. After cooling and forming, the ejector cylinder 84 is activated, extending its protruding end and pushing the base 821 to move the lower mold 822 downward. Simultaneously, the base 821 moves downward, causing the inclined guide post 827 to move obliquely along the inner cavity of the inclined guide groove 828, and moving the two side modules 823 to the sides. This demolds the cooled and formed wheel hub within the cavity. Because the inclined casting mold 82 is tilted, the demolded wheel hub moves in the tilting direction under gravity and falls onto the L-shaped support frame 71. Then, the protruding end of the tilting cylinder 74 is shortened, causing the L-shaped support frame 71 to tilt towards the upward conveyor belt 9 until the lowest point of the tilt of the L-shaped support frame 71 coincides with the upward conveyor belt 9. The top of the conveyor belt 9 is level. Due to the weight of the hub, it will move in an inclined direction due to gravity. Since the rolling rods 72 are rotatably connected, the hub will slide down with the rotation of several rolling rods 72, moving onto the feeding conveyor belt 9 to continue moving, realizing automatic material picking and feeding operations, effectively reducing manual intervention. In the initial state, the automatic loading and unloading assembly 11 is located at the top of the feeding conveyor belt 9, and the opening and closing of the clamping arms 113 is controlled by the variable pitch motor 117. The variable pitch motor 117 drives the bidirectional screw 116 to rotate, which drives the sliding block 112 to move in the inner cavity of the through hole in the middle of the support rod 111 through the roller 118, so that the two clamping arms 113 drive the clamping rollers 114 to fix them on the side of the hub, clamping and fixing the hub. After the positioning is completed, the automatic loading and unloading assembly 11, driven by the linear guide rail 2, moves the wheel hub to the top of the welding table 12 for welding. Depending on whether the wheel hub has a thin-walled area or a thick-walled connection, the switching motor 66 drives the turntable 62 to rotate, automatically switching between the laser welding equipment 64 and the friction stir welding equipment 65. For the thin-walled area of ​​the wheel hub, the laser welding equipment 64 is used; for the thick-walled connection, the friction stir welding equipment 65 is used. This rotational switching of welding methods adapts to the welding requirements of different parts of the wheel hub. After welding, the wheel hub continues to move along the linear guide rail 2 and is moved to the top of the unloading conveyor belt 13 by the automatic loading and unloading assembly 11. The variable pitch motor 117 then controls the clamping arm 113 to open.This causes the wheel hub to fall downwards to the top of the unloading conveyor belt 13 for unloading.

[0038] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. An integrated equipment for tilting casting and welding of wheel hubs for new energy vehicles, comprising a base (1) and two linear guide rails (2) fixedly connected to one side of its top, wherein a multi-axis linkage CNC machine tool (3) is provided above the base (1), characterized in that: The base (1) has an installation groove (4) at one end, and a mold support (5) is fixedly connected to the other side of the top of the base (1). The multi-axis linkage CNC machine tool (3) is equipped with a dual-station welding assembly (6) for automatically switching welding modes. The inner cavity of the installation groove (4) is provided with a material picking assembly (7). The middle part of the mold support (5) is provided with an inclined casting assembly (8) for wheel hub casting. The middle part of the top of the base (1) near the material picking assembly (7) is provided with a feeding conveyor belt (9). The dual-station welding assembly (6) includes a mounting frame (61) fixedly connected to a multi-axis linkage CNC machine tool (3). A turntable (62) is rotatably connected to the bottom end of the mounting frame (61). Equipment racks (63) are fixedly connected to both sides of the bottom end of the turntable (62). A laser welding device (64) and a friction stir welding device (65) are fixedly installed on the two equipment racks (63). The material handling assembly (7) includes an L-shaped support frame (71) rotatably connected to the inner cavity of the mounting groove (4). The bottom end of the inner wall of the L-shaped support frame (71) is provided with a groove. Several rolling rods (72) are rotatably connected to the inner cavity of the groove. A buffer pad (73) is fixedly connected to the inner side of the L-shaped support frame (71).

2. The integrated equipment for tilting casting and welding of new energy vehicle wheel hubs according to claim 1, characterized in that: A switching motor (66) is fixedly installed in the middle of the inner cavity of the mounting frame (61). The output end of the switching motor (66) passes through the mounting frame (61) and is fixedly connected to the top of the turntable (62). Two first wire-passing grooves (67) are opened at the bottom of the mounting frame (61), and a second wire-passing groove (68) is opened in the middle of the equipment frame (63).

3. The integrated equipment for tilting casting and welding of new energy vehicle wheel hubs according to claim 1, characterized in that: An inclined cylinder (74) is installed on the top of the base (1) near the side of the L-shaped support frame (71). A rotating connector (75) is fixedly connected to the bottom end of the L-shaped support frame (71). The extended end of the inclined cylinder (74) is rotatably connected to the rotating connector (75).

4. The integrated equipment for tilting casting and welding of new energy vehicle wheel hubs according to claim 1, characterized in that: The tilting casting assembly (8) includes a tilting table (81) rotatably connected to the inner cavity of the mold support (5). A tilting casting mold (82) is provided in the middle of the tilting table (81). A fixing frame (83) is fixedly connected to the top of the tilting table (81). Two ejection cylinders (84) are fixedly installed at the top of the inner cavity of the fixing frame (83). A tilting motor (10) is installed at one end of the mold support (5). The output end of the tilting motor (10) passes through the mold support (5) and is fixedly connected to one end of the tilting table (81).

5. The integrated equipment for tilting casting and welding of new energy vehicle wheel hubs according to claim 4, characterized in that: The inclined casting mold (82) includes a base (821) located at the bottom of the tilting table (81). A lower mold (822) is fixedly connected to the top center of the base (821). Two side modules (823) are movably connected to the top of the lower mold (822). A spiral water cooling channel (824) is provided inside the lower mold (822). An upper mold (825) is provided at the top of the two side modules (823). A pouring port (826) is opened at the central axis of the upper mold (825).

6. The integrated equipment for tilting casting and welding of new energy vehicle wheel hubs according to claim 5, characterized in that: The top of the flipping table (81) has two through holes. The protruding end of the ejector cylinder (84) passes through the through holes and is fixedly connected to the top of the base (821). Both sides of the top of the base (821) are fixedly connected with inclined guide posts (827). The inner cavity of the side module (823) is provided with an inclined guide groove (828). The position and shape of the inclined guide post (827) are adapted to the position and shape of the inner cavity of the inclined guide groove (828) and are movably connected to its inner cavity.

7. The integrated equipment for tilting casting and welding of new energy vehicle wheel hubs according to claim 1, characterized in that: An automatic loading and unloading assembly (11) for fixing the wheel hub is provided between the two linear guide rails (2). A welding table (12) is provided at the top center of the base (1). A unloading conveyor belt (13) is provided at the end of the welding table (12) away from the loading conveyor belt (9). The automatic loading and unloading assembly (11) is located above the welding table (12).

8. The integrated equipment for tilting casting and welding of new energy vehicle wheel hubs according to claim 7, characterized in that: The automatic loading and unloading assembly (11) includes a support rod (111) fixedly connected to the top of two linear guide rails (2). A through hole is provided in the middle of the support rod (111). Two sliding blocks (112) are movably connected to the inner cavity of the through hole. A clamping arm (113) is fixedly connected to one end of the sliding block (112) away from the support rod (111). Two clamping rollers (114) for clamping and fixing the hub are rotatably connected to the inner wall of the clamping arm (113).

9. The integrated equipment for tilting casting and welding of new energy vehicle wheel hubs according to claim 8, characterized in that: A protective box (115) is fixedly installed at the end of the support rod (111) away from the clamping arm (113). A bidirectional screw (116) is rotatably connected to the inner cavity of the protective box (115). A variable pitch motor (117) is fixedly installed at one end of the protective box (115). The output end of the variable pitch motor (117) passes through the protective box (115) and is fixedly connected to one end of the bidirectional screw (116). Two rollers (118) are fixedly connected at the end of the sliding block (112) near the protective box (115). The rollers (118) are movably connected to the inner cavity of the threaded groove opened on the surface of the bidirectional screw (116).

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