Full-automatic high-pressure casting line for wheel hub

Abstract

The application discloses a kind of wheel hub full-automatic high-pressure casting assembly line, including die casting machine main body, the side of die casting machine main body is equipped with double-row feeding platform, multiple-axis robot is equipped between the double-row feeding platform and die casting machine main body, the end of the rotating shaft of multiple-axis robot is equipped with mounting frame, brake nest clamping jaw, spline insert clamping jaw and die casting finished product clamping jaw are equipped on the mounting frame;The side of multiple-axis robot is also equipped with cooling assembly, wheel hub multi-station processing device is also equipped between the cooling assembly and multiple-axis robot, the wheel hub multi-station processing device includes carousel, and a plurality of positioning tooling components for fixing product are equipped on the carousel.The application simultaneously sets multiple clamping jaws on the mounting frame of multiple-axis robot, can simultaneously grab different products, and higher feeding and discharging;Die casting finished product is further processed by annular distribution wheel hub multi-station processing device, product can be rapidly transferred in multiple stations and has high processing precision.

Description

Technical Field

[0001] This invention belongs to the field of die-casting equipment technology, specifically relating to a fully automated high-pressure casting production line for wheel hubs. Background Technology

[0002] During the die-casting process, wheel hubs often require the addition of brake inserts and spline inserts, necessitating the use of robotic arms for loading. After die-casting, the wheel hub is only a preliminary finished product, requiring further processing. This includes processes such as slag removal, material removal, and drilling. Once the wheel hub is processed, it is then unloaded from the production line. The existing patent publication number CN221966681U discloses a forging production line for magnesium-aluminum alloy wheel hubs after casting. This existing wheel hub production line uses a linear assembly line, resulting in long product transfer times and low overall processing efficiency. Before forming, the wheel hubs often require preheating of the components. The existing transfer robot uses a conventional multi-axis robot. Preheated components have high overall stability, which can easily damage the grippers of the multi-axis robot, leading to improper transfer of components and an unsafe and unreliable clamping process. Furthermore, after the die-cast finished product is processed, it is still processed again using a linear assembly line, making subsequent processing steps too dispersed. Product transfer efficiency is low, and the product needs to be transferred multiple times, which can easily damage the product surface. Summary of the Invention

[0003] This invention addresses the problems existing in the prior art by designing a fully automated high-pressure casting production line for wheel hubs. The invention simultaneously sets up multiple grippers on the mounting frame of a multi-axis robot, enabling simultaneous gripping of different products and higher loading and unloading efficiency. The die-cast finished products are further processed by a ring-distributed multi-station wheel hub processing device, allowing for rapid transfer of products across multiple stations with high processing precision.

[0004] The objective of this invention is achieved through the following technical solution: a fully automated high-pressure casting production line for wheel hubs, comprising a die-casting machine body, a double-row feeding platform on the side of the die-casting machine body, a multi-axis robot between the double-row feeding platform and the die-casting machine body, a mounting frame at the end of the rotating shaft of the multi-axis robot, and brake nesting grippers, spline insert grippers, and die-cast finished product grippers on the mounting frame; a cooling assembly is also provided on the side of the multi-axis robot, and a multi-station wheel hub processing device is provided between the cooling assembly and the multi-axis robot, the multi-station wheel hub processing device including a turntable, and a plurality of positioning fixture components for fixing products are provided on the turntable.

[0005] Preferably, the double-row feeding platform includes a main frame, on which sliding platforms are arranged side by side; the main frame also includes a pair of first cylinders, the piston shaft of each first cylinder being connected to the adjacent sliding platform; the main frame also includes a first track arranged parallel to the die-casting machine body, and the sliding platform is slidably mounted on the first track.

[0006] Preferably, the sliding platform is provided with a plurality of positioning tooling molds arranged in a linear array; the positioning tooling molds are detachably mounted on the sliding platform, and the outer contour of the positioning tooling molds is adapted to the outer contour of the brake nest; the center of the positioning tooling mold is provided with a first columnar protrusion, the outer contour of the first columnar protrusion is adapted to the inner hole size on the spline insert; a second columnar protrusion is also provided on one side of the first columnar protrusion, the outer contour of the second columnar protrusion is adapted to the tooth profile of the spline insert; a slot positioning seat is also provided on the outer side of the positioning tooling mold, the outer contour of the slot positioning seat is adapted to the protrusion profile on the brake nest; a high-frequency heating device is also provided on the side of the double-row feeding platform, and both the high-frequency heating device and the double-row feeding platform are oriented towards the multi-axis robot.

[0007] The main frame features two sliding platforms that can slide relative to each other. Each platform holds a spline insert and a brake nest. This allows for the placement of more spline inserts and brake nests initially, avoiding frequent material replenishment. The brake nest is radially positioned using a positioning fixture, and a slotted positioning seat prevents rotation of the brake nest relative to the sliding platform. Because the brake nest is precisely positioned on the sliding platform, the multi-axis robot and the brake nest gripper work together to accurately grip the brake nest onto the die-casting machine body. A first columnar protrusion radially positions the spline insert, and a second columnar protrusion prevents rotation of the spline insert relative to the sliding platform. Since the first columnar protrusion is located at the center of the positioning fixture, it saves space, allowing for more products to be placed on the sliding platform. The spline insert gripper first picks up the spline insert and places it on a high-frequency heating device for preheating. Then, as the spline insert is removed from the high-frequency heating device, the brake nest is pre-grabbed, allowing both the brake nest and spline insert to be placed onto the die-casting machine body simultaneously. This avoids multiple movements of the multi-axis robot and improves loading efficiency.

[0008] Preferably, the mounting frame includes a flange-reinforced main plate and a pair of flange side plates, the flange side plates being fixedly connected to the flange-reinforced main plate and arranged perpendicularly to each other; the bottom of the flange-reinforced main plate is provided with a spline insert claw, the spline insert claw penetrating through the flange side plate; a brake nested claw is installed on one of the flange side plates, and a die-cast finished claw is installed on the end of the flange-reinforced main plate opposite to the spline insert claw.

[0009] Preferably, the brake nested gripper includes a first gripper cylinder and a plurality of first gripper bodies disposed on the first gripper cylinder; the spline insert gripper includes a second gripper cylinder, the second gripper cylinder and the first gripper cylinder are arranged parallel to each other and their orientations are opposite; the die-cast finished product gripper includes a third gripper cylinder, the third gripper cylinder and the second gripper cylinder are arranged perpendicular to each other.

[0010] Preferably, the spline insert gripper further includes a rectangular frame, an adapter, an adapter rod, a columnar support, a first connecting rod, a second connecting rod, and a third connecting rod; a second gripper cylinder is mounted at the bottom of the rectangular frame, an adapter is provided on the piston shaft of the second gripper cylinder, and an adapter rod is mounted on the adapter; a first adapter flange is provided at the end of the rectangular frame away from the second gripper cylinder, and several extension mounting rods are provided on the first adapter flange; a second adapter flange is mounted at the end of each extension mounting rod, and a columnar support is fixedly mounted on the second adapter flange, the adapter rods passing through the first connecting rod, the second connecting rod, and the third connecting rod. A first and second adapter flange extend into a columnar support. A triangular push plate is fixedly installed at the end of the adapter rod, and the triangular push plate is provided with several first connecting rods hinged thereto. Each first connecting rod has a second gripper body hinged thereto at its end, and each second gripper body is provided with a second connecting rod and a third connecting rod hinged thereto. The second and third connecting rods are arranged side by side and adjacent to each other. The ends of the second and third connecting rods are also hinged to the columnar support. When the second gripper cylinder pushes the triangular push plate to move, the second gripper body opens or closes relative to the columnar support.

[0011] Because the flange-reinforced main plate and flange side plate are perpendicular to each other, and the mounting frame is located at the end of the multi-axis robot's rotating shaft, the rotation of the mounting frame can be easily adjusted. Since the brake nesting gripper and spline insert gripper are parallel to each other and face opposite directions, the brake nesting and spline insert are positioned at opposite ends of the mounting frame during transport, preventing interference. Simultaneously, the hot spline insert will not come into contact with the room-temperature brake nesting. When feeding material into the die-casting machine body, the multi-axis robot first moves the mounting frame to the workstation on the die-casting machine body, and then adjusts the orientation of the mounting frame to quickly complete the feeding of the brake nesting and spline insert. Furthermore, the die-casting product gripper is located on the back of the flange-reinforced main plate, where there are no interfering parts, allowing the die-casting product gripper to better grasp the die-casting product.

[0012] Because the spline insert reaches a high temperature after preheating, a rectangular frame is used to facilitate the placement of the second gripper cylinder away from the second gripper body. An adapter rod and an extension rod are also mounted on the rectangular frame, increasing the axial length and minimizing the impact of the second gripper body gripping the high-temperature spline insert on the second gripper cylinder. When the second gripper cylinder operates, it pushes the adapter rod, which in turn moves the triangular push plate. The outer contour of the triangular push plate matches the inner contour of the columnar support, allowing the triangular push plate to move axially relative to the columnar support. The triangular push plate is hinged to the second gripper body via a first connecting rod, and the second gripper body is simultaneously hinged to the columnar support via a second and third connecting rod. Therefore, the extension and retraction of the triangular push plate controls the opening and closing of the second gripper body relative to the columnar support. Because of the second and third connecting rods between the second gripper body and the columnar support, the second gripper body experiences greater clamping force and a better clamping effect. Because the second and third links are arranged adjacent to each other, and the first links are evenly distributed on the triangular push plate, the movement of each second gripper body has better synchronization, resulting in a better gripping effect.

[0013] Preferably, the cooling assembly is arranged around the multi-axis robot. The cooling assembly includes a cooling frame, which is arranged in layers. Each layer of the cooling frame is provided with a pair of positioning bases, which are detachably installed on the cooling frame. The outer contour of the positioning base is adapted to the outer contour of the die-cast product. A positioning cylinder is placed on the top of the positioning base, and a top head is installed on the piston shaft of the positioning cylinder. A cooling fan is provided on the side of the positioning base, and the cooling fan and the die-cast product on the positioning base are inclined to each other.

[0014] After the die-cast products are removed from the die-casting machine body, they are first gripped by the die-casting product grippers and placed on the cooling frame for cooling. Because the cooling frame is layered, and each layer is equipped with a cooling fan, multiple die-cast products can be continuously cooled; simultaneously, the cooling frame also serves as a transfer mechanism. After the die-cast products have cooled, they need to be transferred by the die-casting product grippers to the multi-station wheel hub processing unit for further processing. When the multi-station wheel hub processing unit is in operation, the material can be pre-cooled on the cooling frame; this avoids long waiting times for the die-cast products and greatly improves overall processing efficiency.

[0015] Preferably, the multi-station wheel hub processing device is arranged around the multi-axis robot. The multi-station wheel hub processing device also includes a sheet metal base with an inclined bottom surface. A rotating mechanism is provided on the sheet metal base, and a turntable is mounted on the rotating shaft of the rotating mechanism. Several evenly distributed positioning fixture components are provided on the turntable. Each positioning fixture component includes a fixture stand, which is equipped with paired clamping cylinders. A positioning shaft is located at the center of the fixture stand, and the size of the positioning shaft is compatible with the hole size on the die-cast product. The clamping cylinders are arranged around the outside of the positioning shaft, and two clamping cylinders are arranged intersectingly around the positioning shaft. The sheet metal base also includes a material unloading gripping device, which is positioned close to one of the positioning fixture components.

[0016] Preferably, the turntable is provided with five evenly distributed positioning fixture components. One of the positioning fixture components has a slag bag base on its side. The slag bag base is provided with a slag bag removal cylinder. The piston shaft of the slag bag removal cylinder is provided with a dividing plate. The outer contour of the dividing plate is adapted to the outer contour of the die-cast product. The side of the slag bag base is provided with an adjacent slide base. The slide base has a first platform slidably connected to it. The first platform has a second platform slidably connected to it. The second platform has a vertical frame. The vertical frame has a third platform slidably connected to it. The third platform has a rotary drive device. A cutting blade or a grinding head is detachably installed on the shaft of the rotary drive device. The side of the slide base is also provided with a straight slide base. A drilling platform is slidably installed on the straight slide base. A drilling device is installed on the drilling platform.

[0017] Preferably, the first platform is radially movable relative to the turntable, the first and second platforms are perpendicular to each other, the vertical frame is perpendicular to the second platform, and the third platform moves vertically; the slide base is equipped with a first motor for driving the first platform to move, the first platform is equipped with a second motor for driving the second platform to move, and the vertical frame is equipped with a third motor for driving the third platform to move; the linear slide base is equipped with a fourth motor for driving the drilling platform to move; the turntable is equipped with a positioning fixture assembly located near the drilling device, the positioning fixture assembly including a positioning shaft, the positioning shaft being coaxially arranged with the drill bit on the drilling device.

[0018] When the rotating mechanism rotates, it drives the turntable to rotate relative to the sheet metal base. The rotation of the turntable synchronously drives all the positioning fixture components on it. Since the turntable is adjacent to the cooling components, the die-cast product gripper can pick up the die-cast product and place it onto the positioning fixture components on the turntable. The turntable has five ring-shaped positioning fixture components; each fixture component corresponds to a workstation. The first fixture component corresponds to the initial loading station, the second to the slag removal station, the third to the cutting handle station, the fourth to the drilling station, and the fifth to the unloading station. The initial loading station has slag removal and unloading stations on its left and right sides, respectively, and is positioned close to the multi-axis robot for easy loading. The unloading station is positioned close to the unloading gripper.

[0019] Initially, the turntable has no die-cast products for processing. The first die-cast product is placed on the initial loading station using the die-cast product gripper. Then, the turntable rotates one station, transferring the first die-cast product to the slag removal station. Next, the die-cast product gripper picks up a second die-cast product from the cooling assembly to replenish the initial loading station. The turntable continues to rotate, with the first die-cast product at the cutting shank station and the second at the slag removal station. The die-cast product gripper then continuously replenishes the initial loading station. The turntable continues to rotate sequentially, with the first die-cast product passing through the drilling station and finally reaching the unloading station. Since the unloading station is close to the unloading gripper, which is equipped with a vision sensor (a standard component not shown in the accompanying drawings), this unloading gripper is located near the unloading gripper. Therefore, when the vision sensor detects a die-cast product at the unloading station, the unloading gripper immediately grabs the product, idling the unloading station. Then, the turntable continues to rotate, and the positioning fixture assembly positioned towards the unloading station moves back to the initial loading station, allowing new die-cast products to be added for processing. Because the turntable rotates continuously, continuous processing of products is achieved. Since each station is arranged around the turntable, the transfer efficiency is high, significantly improving overall processing efficiency.

[0020] By setting a positioning shaft on the tooling plate, the die-cast product can be easily positioned, allowing the clamping cylinder to reliably hold it. When the slag removal cylinder operates, it controls the dividing plate to approach the die-cast product, quickly removing the slag from its edge. Because the die-cast product is pre-positioned using the positioning tooling assembly, the slag removal effect is improved. The die-cast product then enters the cutting shank station. Here, the sliding reference seat is driven by a motor screw, as are the first and second platforms; the vertical frame and the third platform are also driven by a motor screw. This allows the rotary drive device to move freely in three-dimensional space, facilitating the cutting of excess material from the die-cast product. After the material shank is cut, the turntable continues to rotate, and then a hole is drilled in the center of the die-cast product. Because the positioning shaft is coaxial with the drill bit on the drilling device, the drilling device can drill quickly and accurately. The sliding table base and the drilling platform are also driven by a motor screw.

[0021] Compared with the prior art, the present invention has the following advantages: 1. The present invention sets up a double-row feeding platform, which facilitates the positioning of the brake nest and spline insert, and makes it easier for the gripper on the multi-axis robot to accurately grasp the material; by setting up a high-frequency heating device, the spline insert can be preheated in advance, and because high-pressure casting is used, the brake nest does not need to be heated to meet the production process requirements, saving the heating device and heating energy of the brake nest, and also simplifying the structure of the brake nest gripper; 2. By setting the brake nest gripper, spline insert gripper and die-cast finished product gripper in sequence on a mounting frame, the loading and unloading efficiency is improved and frequent movement of the multi-axis robot is avoided; 3. The brake nest gripper and spline insert gripper are set with opposite orientations to avoid the spline insert at high temperature from interfering with the brake nest. 4. The second gripper cylinder on the spline insert gripper is positioned away from the second gripper body, so that the spline insert at high temperatures will not damage the second gripper cylinder, allowing the second gripper cylinder to work continuously; 5. The cooling component, the multi-station wheel hub processing device, and the positioning fixture component cooperate with each other, enabling simultaneous multi-station operation on the multi-station wheel hub processing device, avoiding long waiting times for materials, and further improving processing efficiency; 6. The multi-station wheel hub processing device includes a turntable, with each station arranged around the turntable, resulting in higher product flow efficiency and less space occupation; 7. Due to the inclined bottom end face of the sheet metal base, aluminum materials such as slag that fall off during processing can slide along the inclined platform to the receiving trolley for collection, preventing aluminum materials from accumulating on the sheet metal base and affecting the processing of subsequent products. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention; Figure 2 A 3D view of a double-row feeding platform; Figure 3 This is a schematic diagram of the working state of a multi-axis robot; Figure 4 Assembly drawing for brake nested jaws, spline insert jaws, and die-cast finished jaws; Figure 5 An exploded view of the spline insert gripper; Figure 6 A 3D view of the cooling components; Figure 7 A 3D view of a multi-station machining device for wheel hubs; Figure 8 A 3D view of the positioning tooling components; Figure 9 A schematic diagram of the working status of the cutting shank station; Figure 10 A schematic diagram of the working status of the drilling station; Figure 11 for Figure 2 A magnified view of a portion of position A in the diagram; Markings in the diagram: 1. Die-casting machine body; 2. Double-row feeding platform; 21. Main frame; 22. Sliding platform; 23. First cylinder; 24. First track; 25. Positioning tooling mold; 26. First columnar protrusion; 27. Second columnar protrusion; 28. Slot positioning seat; 3. Multi-axis robot; 4. Mounting frame; 41. Flange reinforced main board; 42. Flange side plate; 5. Brake nested gripper; 51. First gripper cylinder; 52. 6. First gripper body; 6. Spline insert gripper; 61. Second gripper cylinder; 62. Rectangular frame; 63. Adapter; 64. Adapter rod; 65. Columnar support; 66. First connecting rod; 67. Second connecting rod; 68. Third connecting rod; 69. Second gripper body; 610. First adapter flange; 611. Extension mounting rod; 612. Second adapter flange; 613. Triangular push plate; 7. Die-cast finished gripper; 71. Third gripper body 8. Claw cylinder; 8. Cooling assembly; 81. Cooling frame; 82. Positioning base; 83. Positioning cylinder; 84. Top head; 85. Cooling fan; 9. Multi-station wheel hub machining device; 91. Turntable; 92. Positioning fixture assembly; 921. Fixture stand; 922. Clamping cylinder; 923. Positioning shaft; 93. Sheet metal base; 94. Rotating mechanism; 95. Slag bag base; 96. Slag bag removal cylinder; 97. Dividing disc; 98. Drill 99. Hole device; 910. Slide base; 911. First platform; 912. Second platform; 913. Vertical frame; 914. Third platform; 915. Rotary drive device; 916. Cutting blade; 917. Grinding head; 918. Slide base; 919. Drilling platform; 10. High-frequency heating device; 11. Material feeding and gripping device; 12. First motor; 13. Second motor; 14. Third motor; 15. Fourth motor. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments illustrated in the accompanying drawings: like Figures 1 to 11 As shown, this embodiment discloses a fully automated high-pressure casting production line for wheel hubs, including a die-casting machine body 1. A double-row feeding platform 2 is provided on the side of the die-casting machine body 1. A multi-axis robot 3 is provided between the double-row feeding platform 2 and the die-casting machine body 1. An installation frame 4 is provided at the end of the rotating shaft of the multi-axis robot 3. A brake nesting gripper 5, a spline insert gripper 6, and a die-casting finished product gripper 7 are provided on the installation frame 4. A cooling component 8 is also provided on the side of the multi-axis robot 3. A multi-station wheel hub processing device 9 is also provided between the cooling component 8 and the multi-axis robot 3. The multi-station wheel hub processing device 9 includes a turntable 91. A plurality of positioning fixture components 92 for fixing products are provided on the turntable 91.

[0024] The double-row feeding platform 2 includes a main frame 21, on which sliding platforms 22 are arranged side by side; the main frame 21 is also provided with a pair of first cylinders 23, the piston shaft of each first cylinder 23 is connected to the adjacent sliding platform 22; the main frame 21 is also provided with a first track 24 arranged parallel to the die-casting machine body 1, and the sliding platform 22 is slidably installed on the first track 24. The sliding platform 22 is provided with a plurality of positioning tooling molds 25 arranged in a linear array; the positioning tooling molds 25 are detachably mounted on the sliding platform 22, and the outer contour of the positioning tooling molds 25 is adapted to the outer contour of the brake nest; the center of the positioning tooling mold 25 is provided with a first columnar protrusion 26, the outer contour of the first columnar protrusion 26 is adapted to the inner hole size on the spline insert; a second columnar protrusion 27 is also provided on one side of the first columnar protrusion 26, the outer contour of the second columnar protrusion 27 is adapted to the tooth profile of the spline insert; a slot positioning seat 28 is also provided on the outer side of the positioning tooling mold 25, the outer contour of the slot positioning seat 28 is adapted to the protrusion profile on the brake nest; a high-frequency heating device 10 is also provided on the side of the double-row feeding platform 2, and both the high-frequency heating device 10 and the double-row feeding platform 2 are arranged facing the multi-axis robot 3.

[0025] The mounting frame 4 includes a flange-reinforced main plate 41 and paired flange side plates 42. The flange side plates 42 are fixedly connected to the flange-reinforced main plate 41 and are perpendicular to each other. The bottom of the flange-reinforced main plate 41 is provided with a spline insert claw 6, which penetrates through the flange side plate 42. A brake nesting claw 5 is installed on one of the flange side plates 42, and a die-cast finished claw 7 is installed on the end of the flange-reinforced main plate 41 opposite to the spline insert claw 6. The brake nesting claw 5 includes a first claw cylinder 51 and several first claw bodies 52 disposed on the first claw cylinder 51. The spline insert claw 6 includes a second claw cylinder 61, which is parallel to the first claw cylinder 51 and faces opposite directions. The die-cast finished claw 7 includes a third claw cylinder 71, which is perpendicular to the second claw cylinder 61. The spline insert gripper 6 further includes a rectangular frame 62, an adapter 63, an adapter rod 64, a columnar support 65, a first connecting rod 66, a second connecting rod 67, and a third connecting rod 68. A second gripper cylinder 61 is mounted at the bottom of the rectangular frame 62. An adapter 63 is mounted on the piston shaft of the second gripper cylinder 61, and an adapter rod 64 is mounted on the adapter 63. A first adapter flange 610 is located at the end of the rectangular frame 62 away from the second gripper cylinder 61. Several extension mounting rods 611 are mounted on the first adapter flange 610. A second adapter flange 612 is mounted at the end of each extension mounting rod 611. A columnar support 65 is fixedly mounted on the second adapter flange 612, and the adapter rods 64 pass through it sequentially. A first transition flange 610 and a second transition flange 612 extend into a columnar support 65; a triangular push plate 613 is fixedly installed at the end of the transition rod 64, and the triangular push plate 613 is provided with a plurality of first connecting rods 66 hinged thereto; each first connecting rod 66 is provided with a second gripper body 69 hinged thereto at its end, and each second gripper body 69 is provided with a second connecting rod 67 and a third connecting rod 68 hinged thereto, the second connecting rod 67 and the third connecting rod 68 are arranged side by side and adjacent to each other; the ends of the second connecting rod 67 and the third connecting rod 68 are also hinged to the columnar support 65; when the second gripper cylinder 61 pushes the triangular push plate 613 to move, the second gripper body 69 opens or closes relative to the columnar support 65.The cooling assembly 8 is arranged around the multi-axis robot 3. The cooling assembly 8 includes a cooling frame 81, which is arranged in layers. Each layer of the cooling frame 81 is provided with a pair of positioning bases 82. The positioning bases 82 are detachably installed on the cooling frame 81. The outer contour of the positioning base 82 is adapted to the outer contour of the die-cast product. A positioning cylinder 83 is placed on the top of the positioning base 82. A top head 84 is installed on the piston shaft of the positioning cylinder 83. A cooling fan 85 is provided on the side of the positioning base 82. The cooling fan 85 and the die-cast product on the positioning base 82 are inclined to each other.

[0026] The multi-station wheel hub processing device 9 is arranged around the multi-axis robot 3. The multi-station wheel hub processing device 9 also includes a sheet metal base 93, the bottom end face of which is inclined. A rotating mechanism 94 is provided on the sheet metal base 93, and a turntable 91 is mounted on the rotating shaft of the rotating mechanism 94. Several evenly distributed positioning fixture components 92 are provided on the turntable 91. The positioning fixture component 92 includes a fixture plate 921, and a pair of clamping cylinders 922 are provided on the fixture plate 921. A positioning shaft 923 is provided at the center of the fixture plate 921, and the size of the positioning shaft 923 is adapted to the hole size on the die-cast product. The clamping cylinders 922 are arranged around the outside of the positioning shaft 923, and the two clamping cylinders 922 are arranged crosswise around the positioning shaft 923. The sheet metal base 93 is also provided with a material unloading gripping device 11, which is arranged close to one of the positioning fixture components 92. The turntable 91 is provided with five evenly distributed positioning fixture assemblies 92. One of the positioning fixture assemblies 92 has a slag bag base 95 on its side. The slag bag base 95 is provided with a slag bag removal cylinder 96. The piston shaft of the slag bag removal cylinder 96 is provided with a dividing plate 97. The outer contour of the dividing plate 97 is adapted to the outer contour of the die-cast product. The side of the slag bag base 95 is provided with an adjacent sliding table base 99. The sliding table base 99 is provided with a first platform 910 slidably connected to it. The first platform 910 is provided with a sliding table base 99. A second platform 911 is dynamically connected; a vertical frame 912 is provided on the second platform 911, and a third platform 913 is slidably connected to the vertical frame 912; a rotary drive device 914 is provided on the third platform 913, and a cutting blade 915 or a grinding head 916 is detachably installed on the rotating shaft of the rotary drive device 914; a straight slide base 917 is also provided on the side of the slide base 99, and a drilling platform 918 is slidably installed on the straight slide base 917, and a drilling device 98 is installed on the drilling platform 918. The first platform 910 can move radially relative to the turntable 91. The first platform 910 and the second platform 911 are arranged perpendicular to each other. The vertical frame 912 is arranged perpendicular to the second platform 911. The third platform 913 moves along the vertical direction. The slide base 99 is provided with a first motor 12 for driving the first platform 910 to move. The first platform 910 is provided with a second motor 13 for driving the second platform 911 to move. The vertical frame 912 is provided with a third motor 14 for driving the third platform 913 to move. The linear slide base 917 is provided with a fourth motor 15 for driving the drilling platform 918 to move. The turntable 91 is provided with a positioning fixture assembly 92 located near the drilling device 98. The positioning fixture assembly 92 includes a positioning shaft 923, which is coaxially arranged with the drill bit on the drilling device 98.

[0027] The specific operation process of this embodiment is as follows: The main frame 21 is provided with two sliding platforms 22 that can slide relative to each other. Each sliding platform 22 holds a spline insert and a brake nest. In the initial state, more spline inserts and brake nests can be placed, avoiding frequent material replenishment. The brake nest is radially positioned using a positioning fixture mold 25, and a slot positioning seat 28 is provided to prevent the brake nest from rotating relative to the sliding platform 22. Because the brake nest is precisely positioned on the sliding platform 22, the multi-axis robot 3 and the brake nest gripper 5 work together to accurately clamp the brake nest onto the die-casting machine body 1. The spline insert is radially positioned using a first columnar protrusion 26, and a second columnar protrusion 27 is provided to prevent the spline insert from rotating relative to the sliding platform 22. Since the first columnar protrusion 26 is located at the center of the positioning fixture mold 25, this saves space, allowing more products to be placed on the sliding platform 22. First, the spline insert is gripped by the spline insert gripper 6 and placed on the high-frequency heating device 10 for preheating. Since the high-pressure cast wheel hub is used, the brake nest of the wheel hub can be bonded to the high-pressure cast aluminum liquid in a relatively dense and firm state at room temperature. Therefore, there is no need to heat the brake nest separately, saving the heating device and heating energy of the brake nest, and also simplifying the structure of the brake nest gripper 5. Then, when the spline insert is removed from the high-frequency heating device 10, the brake nest at room temperature is gripped in advance. In this way, the brake nest and the spline insert can be placed on the die-casting machine body 1 at the same time. This avoids the multi-axis robot 3 moving multiple times and improves the feeding efficiency.

[0028] Because the flange stiffening main plate 41 and the flange side plate 42 are set perpendicular to each other, and the mounting frame 4 is located at the end of the rotating shaft of the multi-axis robot 3, the rotation of the mounting frame 4 can be easily adjusted. Since the brake nesting gripper 5 and the spline insert gripper 6 are set parallel to each other and face opposite directions, the brake nesting and spline insert are located at opposite ends of the mounting frame 4 during transport, preventing interference. Simultaneously, the hot spline insert will not come into contact with the room-temperature brake nesting. When feeding material into the die-casting machine body 1, the multi-axis robot 3 first moves the mounting frame 4 to the workstation of the die-casting machine body 1, and then adjusts the orientation of the mounting frame 4 to quickly complete the feeding of the brake nesting and spline insert. Meanwhile, the die-casting finished product gripper 7 is located on the back of the flange stiffening main plate 41. Since there are no interfering parts on the back of the flange stiffening main plate 41, the die-casting finished product gripper 7 can better grasp the die-casting finished product.

[0029] Because the spline insert reaches a high temperature after preheating, a rectangular frame 62 is provided to facilitate the placement of the second gripper cylinder 61 away from the second gripper body 69. Simultaneously, an adapter rod 64 and an extension mounting rod 611 are provided on the rectangular frame 62, increasing the axial length and minimizing the impact of the second gripper body 69 gripping the high-temperature spline insert on the second gripper cylinder 61. When the second gripper cylinder 61 operates, it pushes the adapter rod 64 to move, which in turn moves the triangular push plate 613. The outer contour of the triangular push plate 613 matches the inner contour of the columnar support 65, allowing the triangular push plate 613 to move axially relative to the columnar support 65. The triangular push plate 613 is hinged to the second gripper body 69 via a first connecting rod 66, and the second gripper body 69 is simultaneously hinged to the columnar support 65 via a second connecting rod 67 and a third connecting rod 68. Therefore, the extension and retraction of the triangular push plate 613 controls the opening or closing of the second gripper body 69 relative to the columnar support 65. Because a second link 67 and a third link 68 are provided between the second gripper body 69 and the columnar support 65, the second gripper body 69 has a greater clamping force and a better clamping effect. Since the second link 67 and the third link 68 are arranged adjacent to each other, and the first link 66 is evenly distributed on the triangular push plate 613, the movement of each second gripper body 69 has better synchronization, resulting in a better clamping effect.

[0030] After the die-cast finished product is removed from the die-casting machine body 1, it is first gripped by the die-casting finished product gripper 7 and placed on the cooling frame 81 for cooling. Since the cooling frame 81 is layered, and each layer is equipped with a cooling fan 85, multiple die-cast finished products can be continuously cooled; simultaneously, the cooling frame 81 also serves as a transfer point. After the die-cast finished product has cooled, it needs to be transferred by the die-casting finished product gripper 7 to the multi-station wheel hub processing device for further processing. When the multi-station wheel hub processing device 9 is in processing mode, the material can be pre-cooled on the cooling frame 81; this avoids a long waiting time for the die-cast finished product and greatly improves the overall processing efficiency.

[0031] When the rotating mechanism 94 rotates, it drives the turntable 91 to rotate relative to the sheet metal base. The rotation of the turntable 91 synchronously drives all the positioning fixture components 92 on the turntable 91. Since the turntable 91 is adjacent to the cooling component 8, the die-casting finished product gripper 7 can grab the die-casting finished product onto the positioning fixture components 92 on the turntable 91. The turntable 91 has five ring-shaped positioning fixture components 92; each positioning fixture component 92 corresponds to a workstation. The first positioning fixture component 92 corresponds to the initial loading workstation, the second to the slag removal workstation, the third to the cutting handle workstation, the fourth to the drilling workstation, and the fifth to the unloading workstation. The initial loading workstation has slag removal and unloading workstations on its left and right sides, respectively, and the initial loading workstation is located close to the multi-axis robot 3 for convenient loading. The unloading workstation is located close to the unloading gripper 11.

[0032] Initially, there are no die-cast products on the turntable 91 for processing. The first die-cast product is placed on the initial loading station using the die-cast product gripper 7. Then, the turntable 91 rotates one station, transferring the first die-cast product to the slag removal station. The second die-cast product is then picked up from the cooling assembly 8 by the die-cast product gripper 7 to replenish the initial loading station. The turntable 91 continues to rotate, with the first die-cast product at the cutting shank station and the second at the slag removal station. The die-cast product gripper 7 then continuously replenishes the initial loading station. The turntable 91 continues to rotate sequentially, with the first die-cast product passing through the drilling station and finally reaching the unloading station. Since the unloading station is close to the unloading gripper 11, which is equipped with a vision sensor (a standard component not shown in the accompanying drawings), this unloading gripper 11 is located near the unloading station. Therefore, when the vision sensor detects a die-cast product at the unloading station, the unloading gripper 11 immediately grips the die-cast product, thus idling the unloading station. Then, the turntable 91 continues to rotate, and the positioning fixture assembly 92, which is aligned with the unloading gripper 11, moves towards the initial loading station, allowing new die-cast products to be added for processing. Since the turntable 91 can rotate continuously, continuous processing of products can be achieved. Because each station is set around the turntable 91, the transfer efficiency is high, and the overall processing efficiency is greatly improved.

[0033] By setting a positioning shaft 923 on the tooling plate 921, the die-cast product can be easily positioned, allowing the clamping cylinder 922 to reliably hold the die-cast product. When the slag removal cylinder operates, it controls the dividing plate 97 to approach the die-cast product, thereby quickly removing the slag from the edge of the die-cast product. Since the die-cast product is pre-positioned by the positioning tooling assembly 92, the slag removal effect is better. Then, the die-cast product enters the cutting shank station. Here, the sliding reference seat 99 is connected to the first platform 910 via a motor lead screw, and the first platform 910 and the second platform 911 are also connected via a motor lead screw. The vertical frame 912 and the third platform 913 are also connected via a motor lead screw. In this way, the rotary drive device 914 can move freely in three-dimensional space, facilitating the cutting of excess material stalks on the die-cast product. After the material shank is cut, the turntable 91 continues to rotate and then drills a hole in the center of the die-cast product. Since the positioning shaft 923 is coaxial with the drill bit on the drilling device 98, the drilling device 98 can drill holes quickly and accurately. Here, the linear slide base 917 and the drilling platform 918 are also driven by a motor screw. Since the bottom end face of the sheet metal base 93 is inclined, the aluminum material such as the slag bag, material shank, and drilling chips cut off slides along the inclined table to the receiving trolley for collection and reuse, avoiding the accumulation of these aluminum materials on the sheet metal base 93 and causing interference to subsequent product processing.

[0034] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A fully automated high-pressure casting production line for wheel hubs, comprising a die-casting machine body (1), characterized in that, A double-row feeding platform (2) is provided on the side of the die casting machine body (1). A multi-axis robot (3) is provided between the double-row feeding platform (2) and the die casting machine body (1). An installation frame (4) is provided at the end of the rotating shaft of the multi-axis robot (3). A brake nesting gripper (5), a spline insert gripper (6) and a die casting finished product gripper (7) are provided on the installation frame (4). A cooling component (8) is also provided on the side of the multi-axis robot (3). A multi-station wheel hub processing device (9) is also provided between the cooling component (8) and the multi-axis robot (3). The multi-station wheel hub processing device (9) includes a turntable (91). Several positioning tooling components (92) for fixing products are provided on the turntable (91).

2. The fully automated high-pressure casting production line for wheel hubs according to claim 1, characterized in that, The double-row feeding platform (2) includes a main frame (21), on which a sliding platform (22) is arranged side by side; the main frame (21) is also provided with a pair of first cylinders (23), the piston shaft of each first cylinder (23) is connected to the sliding platform (22) arranged adjacent to it; the main frame (21) is also provided with a first track (24) arranged parallel to the die-casting machine body (1), and the sliding platform (22) is slidably installed on the first track (24).

3. The fully automated high-pressure casting production line for wheel hubs according to claim 2, characterized in that, The sliding platform (22) is provided with a plurality of positioning tooling molds (25) arranged in a linear array; the positioning tooling molds (25) are detachably mounted on the sliding platform (22), and the outer contour of the positioning tooling molds (25) is adapted to the outer contour of the brake nest; the center of the positioning tooling molds (25) is provided with a first columnar protrusion (26), and the outer contour of the first columnar protrusion (26) is adapted to the inner hole size on the spline insert; one of the first columnar protrusions (26) The side is also provided with a second columnar protrusion (27), the outline of the second columnar protrusion (27) is adapted to the tooth profile of the spline insert; the outer side of the positioning tooling mold (25) is also provided with a slot positioning seat (28), the outline of the slot positioning seat (28) is adapted to the protrusion profile on the brake nest; the side of the double-row feeding platform (2) is also provided with a high-frequency heating device (10), the high-frequency heating device (10) and the double-row feeding platform (2) are both set towards the multi-axis robot (3).

4. The fully automated high-pressure casting production line for wheel hubs according to claim 1, characterized in that, The mounting frame (4) includes a flange stiffening main plate (41) and a pair of flange side plates (42). The flange side plates (42) are fixedly connected to the flange stiffening main plate (41) and are perpendicular to each other. The bottom of the flange stiffening main plate (41) is provided with a spline insert claw (6), which passes through the flange side plate (42). A brake nesting claw (5) is installed on one of the flange side plates (42), and a die-cast finished claw (7) is installed on the end of the flange stiffening main plate (41) facing away from the spline insert claw (6).

5. The fully automated high-pressure casting production line for wheel hubs according to claim 4, characterized in that, The brake nested gripper (5) includes a first gripper cylinder (51) and a plurality of first gripper bodies (52) disposed on the first gripper cylinder (51); the spline insert gripper (6) includes a second gripper cylinder (61), the second gripper cylinder (61) and the first gripper cylinder (51) are arranged parallel to each other and their orientations are opposite; the die-cast finished product gripper (7) includes a third gripper cylinder (71), the third gripper cylinder (71) and the second gripper cylinder (61) are arranged perpendicular to each other.

6. The fully automated high-pressure casting production line for wheel hubs according to claim 5, characterized in that, The spline insert gripper (6) further includes a rectangular frame (62), an adapter (63), an adapter rod (64), a columnar support (65), a first connecting rod (66), a second connecting rod (67), and a third connecting rod (68); a second gripper cylinder (61) is installed at the bottom of the rectangular frame (62), an adapter (63) is provided on the piston shaft of the second gripper cylinder (61), and an adapter rod (64) is installed on the adapter (63); a first adapter flange (610) is provided at the end of the rectangular frame (62) away from the second gripper cylinder (61), and several extension mounting rods (611) are provided on the first adapter flange (610); a second adapter flange (612) is installed at the end of the extension mounting rod (611), and a columnar support (65) is fixedly installed on the second adapter flange (612), and the adapter rod (64) is connected to the third connecting rod (68). The rod passes through the first transition flange (610) and the second transition flange (612) and extends into the columnar support (65); a triangular push plate (613) is fixedly installed at the end of the transition rod (64), and a number of first connecting rods (66) are hinged to the triangular push plate (613); each first connecting rod (66) has a second gripper body (69) hinged to the end of it, and each second gripper body (69) has a second connecting rod (67) and a third connecting rod (68) hinged to it, and the second connecting rod (67) and the third connecting rod (68) are arranged side by side and adjacent to each other; the ends of the second connecting rod (67) and the third connecting rod (68) are also hinged to the columnar support (65); when the second gripper cylinder (61) pushes the triangular push plate (613) to move, the second gripper body (69) opens or closes relative to the columnar support (65).

7. The fully automated high-pressure casting production line for wheel hubs according to claim 1, characterized in that, The cooling assembly (8) is arranged around the multi-axis robot (3). The cooling assembly (8) includes a cooling frame (81). The cooling frame (81) is arranged in layers. Each layer of the cooling frame (81) is provided with a pair of positioning bases (82). The positioning bases (82) are detachably installed on the cooling frame (81). The outer contour of the positioning base (82) is adapted to the outer contour of the die-cast product. A positioning cylinder (83) is placed on the top of the positioning base (82). A top head (84) is installed on the piston shaft of the positioning cylinder (83). A cooling fan (85) is provided on the side of the positioning base (82). The cooling fan (85) and the die-cast product on the positioning base (82) are inclined to each other.

8. The fully automated high-pressure casting production line for wheel hubs according to claim 1, characterized in that, The multi-station wheel hub processing device (9) is arranged around the multi-axis robot (3). The multi-station wheel hub processing device (9) also includes a sheet metal base (93), the bottom end face of which is inclined. A rotating mechanism (94) is provided on the sheet metal base (93). A turntable (91) is installed on the rotating shaft of the rotating mechanism (94). A plurality of evenly distributed positioning fixture components (92) are provided on the turntable (91). The positioning fixture components (92) include a fixture upright plate (921). The fixture upright plate (921) is oriented with a... A pair of clamping cylinders (922) are provided; a positioning shaft (923) is provided at the center of the tooling plate (921), the size of the positioning shaft (923) is adapted to the hole size on the die-cast product; the clamping cylinders (922) are arranged around the outside of the positioning shaft (923), and the two clamping cylinders (922) are arranged crosswise around the positioning shaft (923); the sheet metal base (93) is also provided with a material feeding gripping device (11), the material feeding gripping device (11) is arranged close to one of the positioning tooling components (92).

9. The fully automated high-pressure casting production line for wheel hubs according to claim 8, characterized in that, The turntable (91) is provided with five evenly distributed positioning fixture components (92). One of the positioning fixture components (92) has a slag bag base (95) on its side. The slag bag base (95) is provided with a slag bag removal cylinder (96). The piston shaft of the slag bag removal cylinder (96) is provided with a dividing plate (97). The outer contour of the dividing plate (97) is adapted to the outer contour of the die-cast product. The side of the slag bag base (95) is provided with a slide base (99) adjacent to it. The slide base (99) is provided with a first platform (910) slidably connected to it. The first platform (910) is provided with a sliding plate slidably connected to it. The second platform (911) is connected; the second platform (911) is provided with a vertical frame (912), and the vertical frame (912) is provided with a third platform (913) slidably connected thereto; the third platform (913) is provided with a rotary drive device (914), and a cutting blade (915) or a grinding head (916) is detachably installed on the rotating shaft of the rotary drive device (914); the side of the slide base (99) is also provided with a straight slide base (917), and a drilling platform (918) is slidably installed on the straight slide base (917), and a drilling device (98) is installed on the drilling platform (918).

10. The fully automated high-pressure casting production line for wheel hubs according to claim 9, characterized in that, The first platform (910) can move radially relative to the turntable (91). The first platform (910) and the second platform (911) are arranged perpendicularly to each other. The vertical frame (912) is arranged perpendicularly to the second platform (911). The third platform (913) moves along the vertical direction. The slide base (99) is provided with a first motor (12) for driving the first platform (910) to move. The first platform (910) is provided with a second motor (13) for driving the second platform (911) to move. The vertical frame (912) is provided with a third motor (14) for driving the third platform (913) to move. The linear slide base (917) is provided with a fourth motor (15) for driving the drilling platform (918) to move. The turntable (91) is provided with a positioning fixture assembly (92) located near the drilling device (98). The positioning fixture assembly (92) includes a positioning shaft (923). The positioning shaft (923) is coaxially arranged with the drill bit on the drilling device (98).

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