An automatic sandpaper changing polishing and grinding station

Abstract

The utility model relates to industrial automation equipment technical field discloses a kind of sandpaper automatic replacement's grinding and polishing workstation, including workstation base body, the surface of workstation base body is fixed with bread board, the surface of bread board is fixed with fixed frame, the surface of fixed frame is provided with high-precision industrial camera, the surface of bread board is also fixed with sanding mechanism base and multiple trays, multiple the storage tray is arranged around the sanding mechanism base, the upper surface of sanding mechanism base is fixed with sandpaper doctor, the surface of tray is placed with sandpaper, still include polishing mechanism, the polishing mechanism is composed of floating grinding and polishing head, 3M pneumatic sander, grinding head clamp, the top of floating grinding and polishing head is fixed with connecting flange, the grinding head clamp is fixed in the bottom of floating grinding and polishing head, 3M pneumatic sander is sleeved in the grinding head clamp.The utility model can realize automatic continuous operation to reduce manual intervention, significantly improve processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of industrial automation equipment technology, and in particular to a polishing workstation with automatic sandpaper changing capability. Background Technology

[0002] Existing grinding and polishing equipment has many shortcomings, which seriously affect production efficiency and product quality. First, the equipment layout is unreasonable, and the loading and unloading area is not effectively isolated from the grinding and polishing processing area, resulting in a chaotic production process, frequent and error-prone workpiece handling, and frequent production line stoppages. Second, frequent manual intervention is required. From loading and unloading workpieces to adjusting parameters during processing, all operations rely on manual operation, which is not only inefficient but also prone to unstable processing quality due to human factors. To solve the above problems, a grinding and polishing workstation with automatic sandpaper changing capability was designed. Utility Model Content

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this invention is to provide a polishing workstation with automatic sandpaper changing capability, enabling automated continuous operation, reducing manual intervention, and significantly improving processing efficiency.

[0004] According to the present invention, a polishing workstation with automatic sandpaper replacement is provided, comprising a workstation base, a breadboard fixed to the surface of the workstation base, a fixing frame fixed to the surface of the breadboard, a high-precision industrial camera mounted on the surface of the fixing frame, a sanding mechanism base and multiple trays fixed to the surface of the breadboard, the multiple trays being arranged around the sanding mechanism base, a sandpaper scraper fixed to the upper surface of the sanding mechanism base, and sandpaper placed on the surface of the trays; It also includes a grinding mechanism, which consists of a floating polishing head, a 3M pneumatic grinder, and a grinding head clamp. The top of the floating polishing head is fixed with a connecting flange, the grinding head clamp is fixed to the bottom of the floating polishing head, the 3M pneumatic grinder is fitted inside the grinding head clamp, and the bottom of the grinding head clamp is provided with a clamp cover plate.

[0005] Preferably, the workstation base is composed of multiple aluminum profile frames spliced ​​together, and cabinet doors are installed around all four sides of the workstation base. Universal wheels are installed at the four corners of the bottom of the workstation base.

[0006] Preferably, the mounting frame consists of two vertically arranged and one horizontally arranged beams. Angle brackets are fixedly installed between the two ends of the horizontally arranged beams and the vertically arranged beams. A camera frame is fixed in the middle of the surface of the horizontally arranged beams, and the high-precision industrial camera is fixed inside the camera frame.

[0007] Preferably, the breadboard has multiple adaptive leveling bases fixed to its surface, and each leveling base has a vacuum suction cup fixed to its surface.

[0008] Preferably, the bottom of the grinding head fixture is provided with an assembly groove, and the inner sidewall of the assembly groove is symmetrically provided with sliding grooves for fitting the fixture cover plate.

[0009] Preferably, it also includes a three-axis robotic arm, which is fixed to the surface of the breadboard, and the connecting flange is fixed to the end of the three-axis robotic arm.

[0010] The beneficial effects of this utility model are: 1. Traditional grinding and polishing workstations with automatic sandpaper changing have low automation integration and most processes require manual intervention. This grinding and polishing workstation has high automation integration, can achieve automated continuous operation, reduce manual intervention, and significantly improve processing efficiency. 2. Traditional grinding and polishing workstations with automatic sandpaper replacement lack an automatic sandpaper replacement mechanism, usually requiring manual replacement, which is time-consuming and labor-intensive. This grinding and polishing workstation is designed with an automatic sandpaper replacement mechanism to achieve automatic sandpaper replacement. 3. The traditional grinding and polishing workstation with automatic sandpaper changing has a cumbersome process for installing and replacing workpieces. This grinding and polishing workstation with automatic sandpaper changing uses suction cups to fix the workpieces, reducing the cumbersome steps of replacement. Attached Figure Description

[0011] Figure 1 This is a front view of the overall structure of a polishing workstation with automatic sandpaper changing according to the present invention.

[0012] Figure 2 This is a top view of the overall structure of a polishing workstation with automatic sandpaper changing proposed in this utility model.

[0013] Figure 3 This is a schematic diagram of the working base structure of a polishing workstation with automatic sandpaper changing capability proposed in this utility model.

[0014] Figure 4 This is a schematic diagram of the base arrangement of the sanding mechanism of a sanding and polishing workstation with automatic sandpaper changing capability proposed in this utility model.

[0015] Figure 5 This is a schematic diagram of the fixed frame structure of a polishing workstation with automatic sandpaper changing proposed in this utility model.

[0016] Figure 6 This is a schematic diagram of the vacuum suction cup assembly structure of a polishing workstation with automatic sandpaper changing capability proposed in this utility model.

[0017] Figure 7This is a schematic diagram of the grinding mechanism of a polishing workstation with automatic sandpaper changing, as proposed in this utility model.

[0018] Figure 8 This is a schematic diagram of the floating polishing head structure of a polishing workstation with automatic sandpaper changing capability proposed in this utility model.

[0019] Figure 9 This is a schematic diagram of the structure of a 3M pneumatic grinder, which is a grinding and polishing workstation with automatic sandpaper changing capability, as proposed in this utility model.

[0020] Figure 10 This is a schematic diagram of the grinding head fixture assembly structure of a grinding and polishing workstation with automatic sandpaper changing capability proposed in this utility model.

[0021] In the diagram: 1. Workstation base; 101. Aluminum profile frame; 102. Cabinet door; 103. Casters; 2. Breadboard; 3. Fixture; 31. Beam plate; 32. Corner bracket; 33. Camera mount; 4. High-precision industrial camera; 5. Grinding mechanism base; 51. Sandpaper scraper; 6. Pallet; 7. Sandpaper; 8. Grinding mechanism; 81. Floating polishing head; 82. 3M pneumatic grinder; 83. Grinding head clamp; 84. Connecting flange; 85. Clamp cover plate; 9. Leveling base; 10. Vacuum suction cup; 11. Three-axis robotic arm. Detailed Implementation

[0022] Reference Figure 1-10 A polishing workstation with automatic sandpaper replacement includes a workstation base 1, a breadboard 2 fixed to the surface of the workstation base, a mounting frame 3 fixed to the surface of the breadboard 2, a high-precision industrial camera 4 mounted on the surface of the mounting frame 3, a sanding mechanism base 5 and multiple trays 6 fixed to the surface of the breadboard 2, multiple trays 6 arranged around the sanding mechanism base 5, a sandpaper scraper 51 fixed to the upper surface of the sanding mechanism base 5, and sandpaper 7 placed on the surface of the trays 6. The workstation base 1 adopts a physically isolated loading and unloading area and a polishing processing area. When the sandpaper 7 needs to be replaced at the bottom of the 3M pneumatic sander 82, the three-axis robotic arm 11 moves the 3M pneumatic sander 82 into the sanding mechanism base 5, and the bottom of the 3M pneumatic sander 82 is level with the sandpaper scraper 51. Then, the three-axis robotic arm 11 moves the 3M pneumatic sander 82 horizontally towards the sandpaper scraper 51, which helps the sandpaper scraper 51 separate the old sandpaper 7 adhering to the bottom of the 3M pneumatic sander 82. Then, the three-axis robotic arm 11 moves the 3M pneumatic sander 82 to the surface of the tray 6, and the bottom of the 3M pneumatic sander 82 contacts the adhesive surface of the new sandpaper 7. The replacement of sandpaper 7 is thus completed. The movement path of the three-axis robotic arm 11 is implemented through programming throughout the process. This technology is existing technology and will not be described in detail here.

[0023] The workstation is equipped with a control terminal, which contains a vision positioning system. The vision positioning system acquires the three-dimensional shape of the workpiece surface through a high-precision industrial camera 4, generates defect location data through an image processing module, and generates the movement trajectory of the robotic arm based on a path planning algorithm. Through the intelligent vision-guided three-axis robotic arm 11 collaborative system, the automatic identification and positioning of the workpiece is realized. It also includes a grinding mechanism 8, which consists of a floating polishing head 81, a 3M pneumatic grinder 82, and a grinding head clamp 83. A connecting flange 84 is fixed to the top of the floating polishing head 81, and the grinding head clamp 83 is fixed to the bottom of the floating polishing head 81. The 3M pneumatic grinder 82 is housed within the grinding head clamp 83, and a clamp cover plate 85 is provided at the bottom of the grinding head clamp 83. The floating polishing head 81 uses the Yuli Instruments iGrinder® axial floating polishing head M5307R12G. At the processing execution level, a passive constant force compensation floating polishing head 81 is used. This polishing head incorporates a high-sensitivity pressure sensor and a pneumatic-electric hybrid system. The integrated servo mechanism can maintain a constant contact pressure of ±0.5N in real time when the contour of a complex curved surface changes, effectively suppressing vibration and reducing the over-polishing rate to below 1%. At the same time, the integrated multispectral 3D vision system and the point cloud reconstruction algorithm based on deep learning can complete the 3D modeling of the workpiece surface within 150ms. The adaptive polishing trajectory is dynamically generated through a real-time path optimization engine, with a trajectory compensation accuracy of 0.02mm. This combination not only eliminates the lag of traditional teaching programming, but also realizes seamless transfer between different batches of workpieces, significantly improving the surface consistency of batch workpieces (contour error ≤ ±8μm).

[0024] The workstation base 1 is composed of multiple aluminum profile frames 101 spliced ​​together. Cabinet doors 102 are installed around the workstation base 1 to close it. Universal wheels 103 are installed at the four corners of the bottom of the workstation base 1.

[0025] The mounting bracket 3 consists of two vertically arranged and one horizontally arranged beam plate 31. Angle brackets 32 are fixedly installed between the two ends of the horizontally arranged beam plate 31 and the vertically arranged beam plate 31. A camera frame 33 is fixed in the middle of the surface of the horizontally arranged beam plate 31, and a high-precision industrial camera 4 is fixed inside the camera frame 33.

[0026] Multiple adaptive leveling bases 9 are fixed on the surface of breadboard 2. Each leveling base 9 is fixed with a vacuum suction cup 10. The vacuum suction cup 10 is used to fix the workpiece. In this embodiment, there are two sets of vacuum suction cups 10 arranged on the left and right sides for switching between polishing workpieces. This layout eliminates the production line stagnation caused by manual handling in the traditional mode, and enables the loading and unloading process and the core polishing process to operate in parallel, which significantly improves production efficiency.

[0027] The bottom of the grinding head fixture 83 is provided with an assembly groove, and the inner side wall of the assembly groove is symmetrically provided with sliding grooves for mounting the fixture cover plate 85. The 3M pneumatic grinder 82 is mounted in the assembly groove, and sandpaper 7 is attached to the bottom grinding end of the 3M pneumatic grinder 82.

[0028] It also includes a three-axis robotic arm 11, which is fixed to the surface of the breadboard 2. The connecting flange 84 is fixed to the end of the three-axis robotic arm 11. The three-axis robotic arm 11 drives the grinding mechanism 8 to move and perform grinding operations on the workpiece fixed to the surface of the vacuum suction cup 10.

[0029] The workstation is equipped with a pneumatic system, which consists of an air compressor and multiple air supply lines. The air compressor has three air outlets: the first air supply line is connected to the floating polishing head 81, providing a stable driving air pressure to ensure the normal operation and force feedback control of the polishing head; the second air supply line is connected to the air inlet of the 3M pneumatic grinder 82, driving the grinding head to rotate and perform the grinding operation, ensuring the efficiency and stability of the grinding process; the third air supply line is connected to the air inlet of the vacuum suction cup 10 assembly, providing an air source for the workpiece clamping device, realizing the firm adsorption and fixation of the workpiece, and improving the reliability of the grinding and polishing process.

Claims

1. A polishing workstation with automatic sandpaper changing capability, characterized in that: The system includes a workstation base, a breadboard fixed to the surface of the workstation base, a mounting bracket fixed to the surface of the breadboard, a high-precision industrial camera mounted on the surface of the mounting bracket, a sanding mechanism base and multiple trays fixed to the surface of the breadboard, the multiple trays arranged around the sanding mechanism base, a sandpaper scraper fixed to the upper surface of the sanding mechanism base, and sandpaper placed on the surface of the trays. It also includes a grinding mechanism, which consists of a floating polishing head, a 3M pneumatic grinder, and a grinding head clamp. The top of the floating polishing head is fixed with a connecting flange, the grinding head clamp is fixed to the bottom of the floating polishing head, the 3M pneumatic grinder is fitted inside the grinding head clamp, and the bottom of the grinding head clamp is provided with a clamp cover plate.

2. The polishing workstation with automatic sandpaper changing capability according to claim 1, characterized in that: The workstation base is composed of multiple aluminum profile frames. Cabinet doors are installed around the four sides of the workstation base, and casters are installed at the four corners of the bottom of the workstation base.

3. The polishing workstation with automatic sandpaper changing capability according to claim 1, characterized in that: The mounting frame consists of two vertically arranged and one horizontally arranged beam plate. Angle brackets are fixedly installed between the two ends of the horizontally arranged beam plate and the vertically arranged beam plate. A camera frame is fixed in the middle of the surface of the horizontally arranged beam plate, and the high-precision industrial camera is fixed inside the camera frame.

4. The polishing workstation with automatic sandpaper changing capability according to claim 1, characterized in that: The breadboard has multiple adaptive leveling bases fixed to its surface, and each leveling base has a vacuum suction cup fixed to its surface.

5. A polishing workstation with automatic sandpaper changing capability according to claim 1, characterized in that: The bottom of the grinding head fixture is provided with an assembly groove, and the inner sidewall of the assembly groove is symmetrically provided with sliding grooves for fitting the fixture cover plate.

6. The polishing workstation with automatic sandpaper changing capability according to claim 1, characterized in that: It also includes a three-axis robotic arm, which is fixed to the surface of the breadboard, and the connecting flange is fixed to the end of the three-axis robotic arm.

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