A hub motor shell polishing work station

Abstract

The utility model provides a kind of in-wheel motor shell polishing work station, belong to polishing equipment technical field.It solves the technical problem that existing polishing work station unloading is difficult to guarantee wheel hub stacking quality.This in-wheel motor shell polishing work station includes load carousel, polishing robot and two material transfer robots, and polishing work station further includes material storage rack, mounting column and mounting plate, and material storage rack is in the shape of a square box, and the upper side of the material storage rack has several upwardly arranged positioning rods in the shape of a column, and the material storage rack is located at the side of the material transfer robot, and the material transfer robot is a vertical multi-joint robot, and the end of the material transfer robot is always downward and fixed with the vertically arranged mounting column, and the mounting plate is in the shape of a ring disc, and the mounting plate is provided with several suction cups arranged around the circumference and downward, and the lower end of the mounting column is connected to the eccentric position of the mounting plate, and the inner hole size of the mounting plate is greater than the outer diameter size of the positioning rod.The utility model realizes the stable unloading of wheel hub while ensuring the stacking and storage quality of wheel hub.

Description

Technical Field

[0001] This utility model belongs to the technical field of grinding equipment and relates to a grinding station for wheel hub motor housing. Background Technology

[0002] The traditional method for dealing with burrs and defects on the surface of wheel hubs is to use grinding tools to remove a layer evenly, resulting in a smooth workpiece surface. However, manual grinding is in a harsh environment, time-consuming, labor-intensive, and affects the health of workers. Therefore, workstations using robotic grinding have emerged.

[0003] For example, patent application number CN202010130646.7 discloses a wheel hub grinding device based on a 3D scanner, including a base plate, a workpiece turntable, a grinding robot, an inspection robot, a grinding tool library, and a system control cabinet; a grinding robot and an inspection robot are respectively provided on both sides of the workpiece turntable.

[0004] The above-mentioned equipment can load and unload wheel hubs and perform grinding, but it has shortcomings: when the upstream and downstream processing stations are far apart, the wheel hubs are usually not loaded and unloaded by conveyor belt, but by material frames. However, in order to facilitate robot picking, the wheel hubs loaded and unloaded need to be placed neatly. However, the traditional bucket-shaped material frames cannot make the wheel hubs stack stably. During the picking or conveying process, the wheel hubs may be overturned and bumped. If they are not stacked for conveying, the single load will be small and the conveying frequency will be frequent. Summary of the Invention

[0005] This utility model addresses the aforementioned problems in existing technologies by providing a wheel hub motor housing grinding station. The technical problem this utility model aims to solve is that existing grinding stations have difficulty ensuring the quality of wheel hub stacking during loading and unloading.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A wheel hub motor housing grinding station includes a material-carrying turntable, a grinding robot, and two material-transferring robots. The grinding robot and the material-transferring robots are arranged at intervals around the periphery of the material-carrying turntable. The grinding station further includes a storage rack, mounting columns, and a mounting plate. The storage rack is a horizontally arranged rectangular frame with several upward-facing, columnar positioning rods on its upper side. The storage rack is located to the side of the material-transferring robots. The material-transferring robots are vertical multi-joint robots, with their ends always pointing downwards and fixed to the vertically arranged mounting columns. The mounting plate is annular in shape and has several circumferentially spaced, downward-facing suction cups. The lower end of the mounting column is connected to an eccentric position on the mounting plate. The inner diameter of the mounting plate is larger than the outer diameter of the positioning rods.

[0008] Two transfer robots are used to transfer wheel hubs onto the material-carrying turntable and remove finished wheel hubs from the turntable, respectively. A grinding robot is used to grind the wheel hubs on the turntable. The turntable continuously rotates and stops to transport wheel hubs one by one. By setting several vertical positioning rods on the storage rack, the wheel hubs are positioned on the positioning rods to achieve a limit, allowing multiple wheel hubs to be stacked vertically without tipping over or bumping, while ensuring sufficient carrying capacity. The transfer robots are designed as existing vertical multi-joint robots, with the upper end of the vertical mounting column connected to the end of the transfer robot. The lower end of the mounting column is connected to the eccentric position of the annular mounting plate. At the same time, a suction cup is set on the mounting plate facing downwards. When the material transfer robot moves the wheel hubs on the storage rack, it can use the suction cups to adsorb the surface of the wheel hubs from above. The inner hole of the mounting plate can provide clearance for the positioning rod, and the mounting column will not interfere with the positioning rod. That is, when loading and unloading, the mounting plate can be sleeved around the positioning rod so that when unloading, the wheel hub can be sent to the root position of the positioning rod before being released to avoid collision damage. When loading, the wheel hub can be grabbed from the root of the positioning rod, thus achieving stable loading and unloading of wheel hubs while ensuring the quality of wheel hub stacking.

[0009] In the aforementioned wheel hub motor housing grinding station, the mounting plate has several radially arranged strip-shaped adjustment holes, which are evenly spaced around the inner hole of the mounting plate. The upper end of the suction cup is columnar and passes through the adjustment holes. Two nuts are screwed onto the outer periphery of the upper end of the suction cup, respectively abutting against the upper and lower sides of the mounting plate. This allows the suction cup to be adjusted along the length of the adjustment holes, facilitating adaptation to different wheel hub sizes and ensuring uniform and stable suction. The two nuts provide locking while also allowing for fine-tuning of the vertical position of the suction cup relative to the mounting plate, improving the applicability of the suction cup position and making stacking and gripping more stable.

[0010] In the aforementioned wheel hub motor housing grinding station, the storage rack has downward-facing support columns at its four corners. This allows for clearance between the support columns below the storage rack, facilitating the passage of existing AGV trolleys and enabling automated transport and transfer of the entire storage rack.

[0011] In the aforementioned hub motor housing grinding station, the mounting column includes a vertically arranged column and a vertically arranged cylinder fixed to the lower end of the column. The upper end of the column is connected to a material handling robot, and the output shaft of the cylinder is axially positioned at an eccentric position on the mounting plate. This allows the cylinder to supplement the vertical movement of the mounting plate, increasing the range of motion of the material handling robot and thus meeting the material handling and stacking requirements of storage boxes with long positioning rods.

[0012] In the aforementioned hub motor housing grinding station, the upper side of the mounting plate has two vertically upward-facing guide rods, which slide along the column. These guide rods provide guidance and circumferential positioning for the movement of the mounting plate relative to the main body, preventing the mounting plate from deflecting and ensuring precise and stable movement.

[0013] In the aforementioned wheel hub motor housing grinding station, a proximity switch is fixedly installed on the outer periphery of one of the suction cups, with its sensing end facing downwards and capable of controlling the suction force of the suction cup. The sensing end of the proximity switch is slightly higher than the lower end of the suction cup. This facilitates the output of negative pressure to the suction cup after the proximity switch approaches and senses the wheel hub product, reducing energy loss and waste.

[0014] Compared with the prior art, the advantages of this utility model are as follows: The wheel hub motor housing grinding station is equipped with a special storage rack, which enables the wheel hubs to be stacked stably in large quantities. At the same time, a special mounting plate is set at the end of the material transfer robot, which can stably pick up and stack materials on the storage rack through suction cups, so as to achieve stable loading and unloading while ensuring the quality of wheel hub stacking. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of this embodiment.

[0016] Figure 2 This is a three-dimensional structural diagram of the material transfer robot component and storage rack in this embodiment.

[0017] Figure 3 yes Figure 2 Enlarged view of part A in the image

[0018] Figure 4 This is a side view of the mounting column and mounting plate assembly.

[0019] In the diagram, 1. Material turntable; 2. Grinding robot; 3. Material transfer robot; 4. Storage rack; 41. Positioning rod; 42. Support column; 5. Mounting column; 51. Column body; 52. Cylinder; 6. Mounting plate; 61. Adjustment hole; 62. Guide rod; 7. Suction cup; 8. Nut; 9. Proximity switch. Detailed Implementation

[0020] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0021] like Figure 1As shown, the wheel hub motor housing grinding station includes a material-carrying turntable 1, a grinding robot 2, and two material-transferring robots 3. Both the grinding robot 2 and the material-carrying turntable 1 can refer to the prior art in the background. The grinding robot 2 and the material-transferring robot 3 are arranged at intervals around the periphery of the material-carrying turntable 1. The grinding station also includes four storage racks 4, which are arranged in a horizontal square shape. Two storage racks 4 are arranged on the side of each material-transferring robot 3.

[0022] like Figure 2 , Figure 3 As shown, the upper side of the storage rack 4 has several upward-facing columnar positioning rods 41. The grinding station also includes mounting columns 5 and mounting plates 6. The material transfer robot 3 is an existing QJRB15-1 type vertical multi-joint robot. The end of the material transfer robot 3 always faces downward and is fixed to the vertically positioned mounting columns 5. The mounting plate 6 is annular in shape and has four circumferentially spaced, downward-facing suction cups 7. The vacuum suction of the suction cups 7 can be generated by existing pipelines in conjunction with a vacuum pump. The lower end of the mounting column 5 is connected to the eccentric position of the mounting plate 6. The inner diameter of the mounting plate 6 is larger than the outer diameter of the positioning rods 41. The mounting plate 6 has six radially evenly spaced, strip-shaped adjustment holes 61. The upper end of the suction cups 7 is columnar and passes through the adjustment holes 61. The four corners of the storage rack 4 have downward-facing support columns 42. The mounting column 5 includes a vertically arranged column 51 and a vertically arranged cylinder 52 fixed inside the lower end of the column 51. The upper end of the column 51 is connected to the material handling robot 3. The output shaft of the cylinder 52 is arranged downward and axially positioned at an eccentric position on the mounting plate 6. The upper side of the mounting plate 6 has two vertically arranged guide rods 62, which slide through the column 51. A proximity switch 9 with its sensing end facing downward and capable of controlling the suction force of the suction cup 7 is fixed to the outer periphery of a suction cup 7 via a bracket. The sensing end (lower end) of the proximity switch 9 is slightly higher than the lower end of the suction cup 7.

[0023] like Figure 3 , Figure 4 As shown, the upper outer periphery of the suction cup 7 is screwed with two nuts 8 that abut against the upper and lower sides of the mounting plate 6 respectively. By rotating the nuts 8 in sequence, the vertical position of the strip suction cup 7 relative to the mounting plate 6 can be adjusted.

[0024] During processing, the end of the transfer robot 3 on the loading side moves the mounting plate 6 to above the storage rack 4. Then, the mounting plate 6 moves down so that its inner hole fits around the positioning post. After the mounting plate 6 moves down into place, the proximity switch 9 recognizes that it is close to the hub and the suction cup 7 is activated. After contacting the hub, the suction cup 7 is attracted and then moves the hub up to detach it from the storage rack 4. The end of the transfer robot 3 moves to the workstation above the loading turntable 1 and releases the hub onto the loading turntable 1 by moving down. Then, the loading turntable 1 rotates and sends the hub to the grinding robot 2 for grinding. After grinding, the loading turntable 1 continues to rotate and sends the ground hub to the transfer robot 3 on the unloading side. The end of the transfer robot 3 at this location moves the mounting plate 6 to above the hub and the suction cup 7 attracts the hub. Finally, the hub is moved to above the storage rack 4 on this side and aligned with the positioning rod 41 and moved down so that the hub fits around the positioning rod 41 and is stably stacked on the existing hub below.

[0025] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model 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 this utility model or exceeding the scope defined by the appended claims.

Claims

1. A wheel hub motor housing grinding station, comprising a material-carrying turntable (1), a grinding robot (2), and two material-transferring robots (3), wherein the grinding robot (2) and the material-transferring robot (3) are arranged at intervals around the periphery of the material-carrying turntable (1), characterized in that, The grinding station also includes a storage rack (4), a mounting column (5), and a mounting plate (6). The storage rack (4) is a horizontally arranged square frame. The upper side of the storage rack (4) has several upward-facing, column-shaped positioning rods (41). The storage rack (4) is located to the side of the material transfer robot (3). The material transfer robot (3) is a vertical multi-joint robot. The end of the material transfer robot (3) always faces downward and is fixed to the vertically arranged mounting column (5). The mounting plate (6) is an annular disc. The mounting plate (6) is provided with several circumferentially spaced, downward-facing suction cups (7). The lower end of the mounting column (5) is connected to the eccentric position of the mounting plate (6). The inner diameter of the mounting plate (6) is larger than the outer diameter of the positioning rods (41).

2. The wheel hub motor housing grinding station according to claim 1, characterized in that, The mounting plate (6) has a plurality of radially arranged strip-shaped adjustment holes (61), which are evenly spaced around the inner hole of the mounting plate (6). The upper end of the suction cup (7) is columnar and passes through the adjustment holes (61). The upper outer periphery of the suction cup (7) is screwed with two nuts (8) that abut against the upper and lower sides of the mounting plate (6).

3. The wheel hub motor housing grinding station according to claim 1 or 2, characterized in that, The storage rack (4) has downward-facing support columns (42) at its four corners.

4. The wheel hub motor housing grinding station according to claim 1 or 2, characterized in that, The mounting column (5) includes a vertically arranged column (51) and a cylinder (52) fixed at the lower end of the column (51) and arranged vertically. The upper end of the column (51) is connected to the material transfer robot (3). The output shaft of the cylinder (52) is arranged downward and axially positioned at the eccentric position of the mounting plate (6).

5. The wheel hub motor housing grinding station according to claim 4, characterized in that, The upper side of the mounting plate (6) has two vertically upward-facing guide rods (62), which slide through the column (51).

6. The wheel hub motor housing grinding station according to claim 1 or 2, characterized in that, A proximity switch (9) with its sensing end facing downwards is fixedly provided on the outer periphery of the suction cup (7) and can control the suction force of the suction cup (7). The sensing end of the proximity switch (9) is slightly higher than the lower end of the suction cup (7).

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