An automatic stacking device for aluminum alloy wheel hubs

Abstract

The utility model provides an automatic stacking equipment of aluminium alloy wheel hub, including mechanical arm and grabbing mechanism, and grabbing mechanism includes buffer assembly and grabbing assembly, buffer assembly upper end is connected with mechanical arm, and buffer assembly downside is connected with grabbing assembly, and grabbing assembly includes motor, motor mounting plate, first support arm, second support arm, connecting block, connecting rod, first second support arm is symmetrically hinged in the lower side of motor mounting plate opposite sides, and first second support arm is in the whole Y shape structure when inwards shrinking and closing, and first second support arm includes upper section inclined arm and vertical positioning column in the center hole of wheel hub can be positioned in the bottom end of inclined arm respectively, and the output of motor is connected with connecting shaft, and connecting shaft is connected with connecting block, and the both ends of connecting block are hinged with the upper end of connecting rod respectively, and the lower end of two connecting rods is hinged with the inclined arm of two support arms respectively.

Description

Technical Field

[0001] This utility model relates to a palletizing device, and more particularly to an automatic palletizing device for aluminum alloy wheel hubs. Background Technology

[0002] Due to the rapid development of the automotive industry, the production of aluminum alloy wheels is constantly increasing, and these wheels are relatively heavy. Currently, manufacturers mainly handle wheel handling manually or with forklifts. Manual handling is labor-intensive, costly, and poses safety hazards, such as hand cuts or foot injuries. While forklift handling reduces labor intensity to some extent, it still requires manual stacking of the wheels before the forklift can lift them, thus resolving the manual handling issues. To address this, some in the industry have invented automated wheel palletizing equipment, such as the automotive wheel palletizing robot disclosed in Chinese invention patent application number 201610352093.3. This robot can grasp, transport, and stack wheel wheels, effectively improving work efficiency and reducing labor costs. However, there are many types of wheel hubs available, and the shapes, opening positions, and opening sizes of different types of wheel hubs are not the same. This means that this type of robot can only handle wheel hubs with similar gripping structures. Otherwise, it is necessary to frequently change the gripping tools that correspond to the wheel hubs, and the production and design costs of gripping tools are high. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of the existing technology by providing an automatic aluminum alloy wheel hub palletizing device that can grab most wheel hubs, has strong versatility, and features simple and quick grabbing and placing actions, thereby effectively improving work efficiency.

[0004] The technical solution adopted by this utility model to achieve the above objectives is as follows: an automatic aluminum alloy wheel hub palletizing device, including a robotic arm and a gripping mechanism connected to the front end of the robotic arm. The gripping mechanism includes a buffer assembly and a gripping assembly. The upper end of the buffer assembly is connected to the robotic arm, and the lower side of the buffer assembly is connected to the gripping assembly. The gripping assembly includes a motor, a motor mounting plate, a first support arm, a second support arm, a connecting block, and a connecting rod. The motor is mounted on the motor mounting plate. The first and second support arms are symmetrically hinged to the lower sides of opposite sides of the motor mounting plate. When the first and second support arms are retracted and close together, the whole structure forms a Y-shape. The first and second support arms respectively include an upper inclined arm and a section connected to the bottom of the inclined arm. The vertical positioning post can be positioned in the center hole of the wheel hub. The upper ends of the inclined arms of the first and second support arms are respectively hinged to the opposite sides of the motor mounting plate. The output end of the motor is connected to the connecting shaft. The connecting shaft extends to the lower side of the motor mounting plate and is connected to the connecting block. The left and right ends of the connecting block are respectively hinged to the upper ends of the two connecting rods. The lower ends of the two connecting rods are respectively hinged to the inclined arms of the first and second support arms. The motor drives the connecting shaft to move up and down. The up and down movement of the connecting block drives the two connecting rods to swing inward and outward, so that the vertical positioning post at the bottom of the first and second support arms retracts inward or expands outward in the center hole of the wheel hub, thereby gripping or releasing the wheel hub.

[0005] A further technical solution of this utility model is: the buffer assembly includes an upper mounting plate and a lower mounting plate, and multiple sets of relatively mating guide posts and guide sleeves are arranged between the upper mounting plate and the lower mounting plate. The upper end of the guide sleeve is connected to the bottom surface of the upper mounting plate, the lower end of the guide post is connected to the upper surface of the lower mounting plate, and a compression spring is arranged outside the guide post. The compression spring is compressed between the lower end surface of the guide sleeve and the upper surface of the lower mounting plate. The upper end of the upper mounting plate is connected to the robotic arm, and the bottom surface of the lower mounting plate is connected to the periphery of the motor mounting plate through a guard rod.

[0006] A further technical solution of this utility model is: the top outer side of the vertical positioning column of the first support arm and the second support arm is connected to an outwardly protruding stop.

[0007] A further technical solution of this utility model is: an elastic pad is connected to the outer surface of the vertical positioning column of the first support arm and the second support arm respectively.

[0008] A further technical solution of this utility model is: the bottom ends of the vertical positioning columns of the first support arm and the second support arm are respectively provided with stepped portions that can cooperate with the inner end face of the center hole of the wheel hub.

[0009] This utility model discloses an automatic aluminum alloy wheel hub palletizing device with the following advantages: A gripping mechanism is installed at the front end of the robotic arm. The gripping mechanism includes a buffer component and a gripping component. The buffer component prevents wheel hub deformation due to impact during gripping. The gripping component includes a first support arm and a second support arm. The vertical positioning pins at the lower sections of the first and second support arms can be positioned in the center hole of the wheel hub. The gripping and release of the wheel hub are achieved through the expansion and contraction of the first and second support arms. This device can grip wheel hubs with different hole diameters. Since the center hole positions of all wheel hubs are the same, this utility model can grip most wheel hubs, has strong versatility, and the gripping and releasing actions are simple and quick, effectively improving work efficiency.

[0010] The following description, in conjunction with the accompanying drawings and embodiments, further illustrates an automatic palletizing device for aluminum alloy wheel hubs according to this utility model. Attached Figure Description

[0011] Figure 1 This is a front view of an automatic palletizing device for aluminum alloy wheel hubs according to this utility model; Figure 2 This is a perspective view of an automatic palletizing device for aluminum alloy wheel hubs according to this utility model; Explanation of reference numerals: 1-Buffer assembly, 2-Grabbing assembly, 3-Upper mounting plate, 4-Guide sleeve, 5-Guide post, 6-Compression spring, 7-Lower mounting plate, 8-Motor, 9-Guard rod, 10-Motor mounting plate, 11-Connecting shaft, 12-Connecting rod, 13-First support arm, 14-Inclined arm, 15-Vertical positioning post, 16-Step section, 17-Elastic pad, 18-Stop block, 19-Second support arm, 20-Connecting block. Detailed Implementation

[0012] like Figure 1 , Figure 2 As shown, this utility model discloses an automatic palletizing device for aluminum alloy wheels, used for automatically palletizing aluminum alloy wheels. This utility model includes a robotic arm and a gripping mechanism connected to the front end of the robotic arm. The robotic arm and its support mechanism are connected, and the robotic arm and its support mechanism are existing equipment purchased directly, not shown in the figure. A detailed description of the robotic arm and its support mechanism is not provided here.

[0013] like Figure 1 , Figure 2As shown, the gripping mechanism includes a buffer assembly 1 and a gripping assembly 2. The upper end of the buffer assembly 1 is connected to the robotic arm, and the lower side of the buffer assembly 1 is connected to the gripping assembly 2. The buffer assembly 1 includes an upper mounting plate 3 and a lower mounting plate 7. Multiple sets of opposing guide posts 5 and guide sleeves 4 are arranged between the upper mounting plate 3 and the lower mounting plate 7. The guide sleeves 4 are on the upper side, and the guide posts 5 are on the lower side. After the guide posts 5 and guide sleeves 4 are docked, they are prevented from detaching by a limiting mechanism. The upper end of the guide sleeve 4 is connected to the bottom surface of the upper mounting plate 3, and the lower end of the guide post 5 is connected to the upper surface of the lower mounting plate 7. A compression spring 6 is provided outside the guide post 5. The compression spring 6 is compressed between the lower end surface of the guide sleeve 4 and the upper surface of the lower mounting plate 7, and the compression spring 6 is in a compressed state. The upper end of the upper mounting plate 3 is connected to the robotic arm through a connecting device, and the bottom surface of the lower mounting plate 7 is connected to the periphery of the motor mounting plate 10 through a guard rod 9. The guard rod 9 is connected to the periphery of the motor mounting plate 10 and the periphery of the bottom of the lower mounting plate 7.

[0014] like Figure 1 , Figure 2 As shown, the gripping component 2 includes a motor 8, a motor mounting plate 10, a first support arm 13, a second support arm 19, a connecting block 20, and a connecting rod 12. The motor 8 is mounted on the motor mounting plate 10, and the first support arm 13 and the second support arm 19 are symmetrically hinged to the lower sides of opposite sides of the motor mounting plate 10. When the first support arm 13 and the second support arm 19 are retracted and brought together, they form a Y-shaped structure, as shown... Figure 1 As shown. The first support arm 13 and the second support arm 19 each include an upper inclined arm 14 and a vertical positioning post 15 connected to the bottom end of the inclined arm 14 and positioned in the center hole of the wheel hub. The vertical positioning post 15 is semi-cylindrical. An outwardly protruding stop 18 is connected to the outer side of the top of the vertical positioning post 15 of the first support arm 13 and the second support arm 19. The stop 18 prevents the inclined arm 14 at the upper end of the vertical positioning post 15 from entering the center hole of the wheel hub and scratching the inner wall of the center hole or impacting the upper surface of the center hole. An elastic pad 17 is connected to the outer surface of the vertical positioning post 15 of the first support arm 13 and the second support arm 19. The elastic pad 17 is made of plastic material. The elastic pad 17 on the outer surface of the vertical positioning post 15 prevents the vertical positioning post 15 from scratching the wall of the center hole of the wheel hub and increases the friction between the vertical positioning post 15 and the wall of the center hole of the wheel hub when gripping the wheel hub, thus improving gripping stability. The bottom ends of the vertical positioning posts 15 of the first support arm 13 and the second support arm 19 are respectively provided with stepped portions 16 that can cooperate with the inner end face of the center hole of the wheel hub. The stepped portions 16 effectively avoid the risk of the wheel hub falling after being grabbed.

[0015] like Figure 1 , Figure 2As shown, the upper ends of the inclined arms 14 of the first support arm 13 and the second support arm 19 are respectively hinged to the opposite sides of the motor mounting plate 10. The output end of the motor 8 is connected to the connecting shaft 11. The connecting shaft 11 extends to the lower side of the motor mounting plate 10 and is connected to the connecting block 20. The connecting shaft 11 extends vertically, and the connecting block 20 extends horizontally. The left and right ends of the connecting block 20 are respectively hinged to the upper ends of the two connecting rods 12. The lower ends of the two connecting rods 12 are respectively hinged to the inclined arms 14 of the first support arm 13 and the inclined arms 14 of the second support arm 19. The inclined arms 14 of the two support arms are provided with through holes near the middle position. The lower sides of the two connecting rods 12 extend into the through holes and are hinged to the corresponding inclined arms 14 through pins. Motor 8 drives connecting shaft 11 to move up and down. Connecting block 20 moves up and down, driving two connecting rods 12 to swing inward and outward. This causes the vertical positioning posts 15 at the bottom of the first support arm 13 and the second support arm 19 to retract inward or expand outward within the center hole of the wheel hub, thus gripping or releasing the wheel hub. When motor 8 drives connecting shaft 11 downward, connecting block 20 moves downward, causing two connecting rods 12 to swing outward. The first support arm 13 and the second support arm 19 expand outward, allowing the vertical positioning posts 15 to be positioned against the wall of the center hole of the wheel hub, thus gripping the wheel hub. When motor 8 drives connecting shaft 11 upward, connecting block 20 moves upward, causing two connecting rods 12 to swing inward. The first support arm 13 and the second support arm 19 retract inward, causing the vertical positioning posts 15 to disengage from the wall of the center hole of the wheel hub, thus releasing the wheel hub.

[0016] During operation, the upper end of the buffer assembly 1 is connected to the robotic arm, and the lower end of the buffer assembly 1 is connected to the gripping assembly 2. The robotic arm and its support mechanism are moved to the vicinity of the production line where aluminum alloy wheel hubs need to be stacked. The control system (the control system is not the invention point of this patent and will not be described in detail here) controls the robotic arm and gripping assembly 2 to work. The control system controls the robotic arm and gripping assembly 2 to move directly above the aluminum alloy wheel hub to be gripped, that is, the vertical positioning column 15 is located directly above the center hole of the aluminum alloy wheel hub to be gripped. The control system controls the robotic arm and gripping assembly 2 to move downward as a whole, and the vertical positioning column 15 of the first support arm 13... 5. The vertical positioning pins 15 of the second support arm 19 simultaneously enter the center hole of the aluminum alloy wheel hub to be grasped. When the upper end face of the step portion 16 reaches the lower side of the inner end face of the center hole of the wheel hub, the motor 8 of the grasping assembly 2 drives the connecting shaft 11 to move downward. At this time, the two support arms expand outward, causing the two vertical positioning pins 15 to be outwardly supported and positioned against the wall of the center hole of the wheel hub, thus grasping the wheel hub. In reality, there is no grasping action; the two sections of the vertical positioning pins 15 are externally supported and stuck against the inner wall of the center hole of the wheel hub. The aluminum alloy wheel hub is lifted by the friction between the surface of the elastic pad 17 on the outer side of the vertical positioning pins 15 and the wall of the center hole of the wheel hub. The robotic arm moves the aluminum alloy wheel hub to the predetermined position; then, the motor 8 drives the connecting shaft 11 to move upward, the two connecting rods 12 swing inward, and the first support arm 13 and the second support arm 19 retract inward, causing the two vertical positioning pins 15 to retract inward and disengage from the wall of the center hole of the wheel hub, releasing the wheel hub.

[0017] The above embodiments are merely preferred embodiments of this utility model. The structure of this utility model is not limited to the forms listed in the above embodiments. Any modifications, equivalent substitutions, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic palletizing device for aluminum alloy wheel hubs, comprising a robotic arm and a gripping mechanism connected to the front end of the robotic arm, characterized in that, The gripping mechanism includes a buffer assembly (1) and a gripping assembly (2). The upper end of the buffer assembly (1) is connected to the robotic arm, and the lower side of the buffer assembly (1) is connected to the gripping assembly (2). The gripping assembly (2) includes a motor (8), a motor mounting plate (10), a first support arm (13), a second support arm (19), a connecting block (20), and a connecting rod (12). The motor (8) is mounted on the motor mounting plate (10). The first support arm (13) and the second support arm (19) are symmetrically hinged to the lower sides of the motor mounting plate (10). When the first support arm (13) and the second support arm (19) are retracted and close together, they form a Y-shaped structure. The first support arm (13) and the second support arm (19) respectively include an upper inclined arm (14) and a vertical positioning column (15) connected to the bottom end of the inclined arm (14) and capable of being positioned in the center hole of the hub. The first support arm (13) and the second support arm (19) are connected to the robotic arm. The upper end of the buffer assembly (14) is connected to the robotic arm, and the lower side of the first support arm (13) is connected to the robotic arm. The lower side of the first support arm (13) and the second support arm (19) are connected to the robotic arm. The upper end ... The upper ends of the tilting arms (14) of the two support arms (19) are respectively hinged to the opposite sides of the motor mounting plate (10). The output end of the motor (8) is connected to the connecting shaft (11). The connecting shaft (11) extends to the lower side of the motor mounting plate (10) and is connected to the connecting block (20). The left and right ends of the connecting block (20) are respectively hinged to the upper ends of the two connecting rods (12). The lower ends of the two connecting rods (12) are respectively hinged to the tilting arms (14) of the first support arm (13) and the tilting arms (14) of the second support arm (19). The motor (8) drives the connecting shaft (11) to move up and down. The connecting block (20) moves up and down, driving the two connecting rods (12) to swing inward and outward, so that the vertical positioning column (15) at the bottom of the first support arm (13) and the vertical positioning column (15) at the bottom of the second support arm (19) retract inward or expand outward in the center hole of the hub, thereby realizing the gripping or release of the hub.

2. The automatic palletizing equipment for aluminum alloy wheel hubs as described in claim 1, characterized in that, The buffer assembly (1) includes an upper mounting plate (3) and a lower mounting plate (7). Multiple sets of guide posts (5) and guide sleeves (4) are arranged between the upper mounting plate (3) and the lower mounting plate (7). The upper end of the guide sleeve (4) is connected to the bottom surface of the upper mounting plate (3), and the lower end of the guide post (5) is connected to the upper surface of the lower mounting plate (7). A compression spring (6) is provided outside the guide post (5). The compression spring (6) is compressed between the lower end surface of the guide sleeve (4) and the upper surface of the lower mounting plate (7). The upper end of the upper mounting plate (3) is connected to the robotic arm, and the bottom surface of the lower mounting plate (7) is connected to the motor mounting plate (10) around the perimeter through a guard rod (9).

3. The automatic palletizing equipment for aluminum alloy wheel hubs as described in claim 1, characterized in that, The top outer side of the vertical positioning post (15) of the first support arm (13) and the second support arm (19) is connected to an outwardly protruding stop (18).

4. The automatic palletizing equipment for aluminum alloy wheel hubs as described in claim 1, characterized in that, An elastic pad (17) is connected to the outer surface of the vertical positioning post (15) of the first support arm (13) and the second support arm (19).

5. The automatic palletizing equipment for aluminum alloy wheel hubs as described in claim 1, characterized in that, The bottom ends of the vertical positioning posts (15) of the first support arm (13) and the second support arm (19) are respectively provided with stepped portions (16) that can cooperate with the inner end face of the center hole of the hub.

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