A double-turntable three-station polishing device and a polishing method thereof
By using a dual-turntable, three-station layout and a zero-point positioning device, the grinding equipment achieves efficient, safe, and automated production, solving the problem of inconvenient operation of existing grinding equipment and improving production efficiency and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG WANFENG TECH DEV CO LTD
- Filing Date
- 2026-04-30
- Publication Date
- 2026-07-24
AI Technical Summary
Existing grinding devices require external tools or cumbersome mechanical disassembly and assembly when switching grinding modes, resulting in low operating efficiency and inconvenience.
It adopts a dual-turntable, three-station layout to complete the feeding, grinding, and unloading processes respectively. Each station operates synchronously and in parallel, and a zero-point positioning device is used to achieve fast and high-precision tooling positioning. It also integrates flexible deburring tools and a high-efficiency dust collection device.
It improves processing cycle time and production efficiency, ensures operational safety, reduces dust interference, and enhances equipment utilization and operational stability, making it suitable for continuous and stable batch production.
Smart Images

Figure CN122442497A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a grinding device and a grinding method thereof, and more particularly to a grinding device and a grinding method with a double turntable and three stations, belonging to the technical field of grinding aluminum alloy structural parts. Background Technology
[0002] Grinding equipment, as a basic processing tool, is widely used in the surface treatment of metal components and high-end equipment parts. It mainly removes defects on the material surface through robotic grinding spindle tools to achieve grinding, polishing and surface finishing.
[0003] The existing grinding devices need further improvement in terms of operating efficiency and convenience. For example, when switching grinding modes, external tools or cumbersome mechanical disassembly and assembly are often required, which greatly reduces the efficiency of operation.
[0004] To address the aforementioned technological bottlenecks, the industry is evolving towards self-adaptation, intelligence, and high efficiency and environmental friendliness. Floating grinding mechanisms with real-time force feedback control, intelligent control systems integrating high-precision sensors, and efficient dust collection devices are becoming core features of the next generation of grinding equipment. The integration of these technologies aims to solve the shortcomings of existing grinding devices in terms of ease of quick replacement and grinding efficiency, thereby improving grinding consistency, safety, and production efficiency. Summary of the Invention
[0005] To address the aforementioned technical problems in the prior art, the purpose of this invention is to provide a grinding device and method with a dual rotary table and three workstations. The device adopts an independent layout of three workstations, which respectively complete the feeding, grinding, and unloading processes. Each workstation operates synchronously and in parallel, significantly improving the processing cycle and production efficiency. Furthermore, the feeding and unloading workstations are safely separated from the grinding workstations, ensuring operational safety and reducing dust interference.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: A grinding device with two conversion tables and three workstations includes a left grinding machine and a right grinding machine. Both the left and right grinding machines are equipped with conversion tables, which are driven by a conversion table drive mechanism. Each conversion table is equipped with a loading station, a grinding station, and a unloading station. Each loading station, grinding station, and unloading station is equipped with a fixture. The fixture includes a main base plate installed on the conversion table. The main base plate is equipped with several sets of clamping cylinder assemblies, and a positioning pin is provided below the clamping cylinder assembly.
[0007] The tooling is equipped with an electrical module and a pneumatic module, and the pneumatic module controls the clamping cylinder assembly.
[0008] The clamping cylinder assembly consists of two sets, located on both sides of the main base plate, and each set of clamping cylinder assembly has three clamping cylinders arranged in a triangular position.
[0009] The main base plate is equipped with a zero-point positioning device.
[0010] The converter stage is equipped with a grating.
[0011] Both the left and right grinding machines are equipped with robot mounting bases, on which grinding robots are mounted. The grinding robots have flexible deburring tools.
[0012] The workstation is equipped with a soft curtain, and a waste cart is located below the workstation.
[0013] Both the left and right grinding machines are equipped with operation button boxes, control cabinet displays, and indicator lights.
[0014] A grinding method for a dual-conversion-table, three-station grinding device is implemented on the grinding device.
[0015] The grinding method of the dual-conversion-table three-station grinding device includes the following steps: (1) Place the product on the tooling of the loading station of the left and right grinding machines, and place two products on the left and right sides at the same time. (2) After placing the product, press the start button of the left grinding machine and the right grinding machine respectively to put the left grinding machine and the right grinding machine into the ready-to-run state. (3) Remove the finished product from the tooling and then press the finish button on the left and right grinding machines; (4) After all the buttons in step (3) are pressed, the operator is located outside the grating, the conversion table rotates, the loading station moves into the interior, the grinding robot starts grinding, and after the grinding robot finishes, the grinding station moves to the unloading station, and the unloading station moves to the loading station. (5) Repeat steps (1)-(4) above.
[0016] The grinding device and grinding method of the present invention with dual conversion table and three workstations have the following beneficial effects: 1. This invention adopts a three-station independent layout, which completes the loading, grinding and unloading processes separately. Each station operates synchronously and in parallel without waiting, which greatly improves the processing cycle and production efficiency. The loading and unloading stations and the grinding station are safely separated, which not only ensures operational safety and reduces dust interference, but also enables loading and unloading outside the machine and grinding inside the machine to be carried out simultaneously, effectively shortening auxiliary time, improving equipment utilization, and making the overall operation smooth and highly automated, suitable for continuous and stable batch production.
[0017] 2. The tooling in this invention employs a zero-point positioning device to achieve rapid, high-precision, and high-rigidity positioning and locking between the tooling and the equipment worktable. Through a standardized positioning interface, the tooling can be repeatedly changed after a reference is set once. It features high repeatability, fast clamping speed, and good rigidity, reducing debugging time, improving processing consistency, and adapting to multi-variety and flexible production.
[0018] 3. This invention has a high degree of integration, a compact and simple structure, and occupies little space, reducing external piping and wiring, making on-site installation and layout simpler; at the same time, the high degree of component integration and fewer connection links effectively reduce the failure rate, improve operational stability, increase assembly and debugging efficiency, and make subsequent maintenance more convenient, significantly improving overall operating efficiency and reliability. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the main structure of the present invention; Figure 3 This is a top view of the structure of the present invention; Figure 4 This is a side view of the structure of the present invention; Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure in the DD direction; Figure 6 for Figure 4 A schematic diagram of the cross-sectional structure in the FF direction; Figure 7 This is a side view of the left grinding machine in this invention. Figure 8 This is a schematic diagram of the other side structure of the left grinding machine in this invention; Figure 9 This is a three-dimensional structural diagram of the tooling in this invention; Figure 10 This is a top view of the tooling structure in this invention; Figure 11 This is a schematic diagram of the main structure of the tooling in this invention; Figure 12 This is a side view of the tooling structure in this invention; Figure 13 and 14 This is a schematic diagram showing the installation position of the zero-point positioning device in this invention; Among them, 1 is the left grinding machine, 2 is the right grinding machine, 3 is the changeover table, 4 is the changeover table drive mechanism, 5 is the loading station, 6 is the grinding station, 7 is the unloading station, 8 is the tooling, 9 is the main base plate, 10 is the clamping cylinder, 11 is the positioning pin, 12 is the electrical module, 13 is the pneumatic module, 14 is the grating, 15 is the robot mounting base, 16 is the grinding robot, 17 is the flexible deburring tool, 18 is the soft curtain, 19 is the waste trolley, 20 is the zero-point positioning, 21 is the operation button box, 22 is the control cabinet display screen, 23 is the indicator light, 24 is the maintenance door, 25 is the safety lock, and 26 is the observation window. Detailed Implementation
[0020] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.
[0021] like Figure 1-14 As shown, the grinding device of the present invention with dual conversion table and three workstations includes a left grinding machine 1 and a right grinding machine 2. Both the left grinding machine 1 and the right grinding machine 2 are equipped with an operation button box 21, a control cabinet display screen 22 and an indicator light 23, and an inspection door 24 and an observation window 26 are provided on the other side. The inspection door 24 is locked by a safety lock 25.
[0022] Furthermore, both the left grinding machine 1 and the right grinding machine 2 in this invention are equipped with robot mounting bases 15, on which grinding robots 16 are mounted. The grinding robots 16 have flexible deburring tools 17 for grinding. Both the left grinding machine 1 and the right grinding machine 2 are equipped with conversion tables 3, meaning that one grinding device of this invention has two conversion tables. The conversion tables 3 are driven by conversion table drive mechanisms 4, and each conversion table 3 is equipped with a loading station 5, a grinding station 6, and a unloading station 7, forming three workstations to complete the loading, grinding, and unloading processes respectively. Each workstation operates synchronously and in parallel, eliminating waiting time and significantly improving processing cycle time and production efficiency. The loading station 5, unloading station 7, and grinding station 6 are safely separated, ensuring operational safety, reducing dust interference, and enabling simultaneous loading / unloading outside the machine and grinding inside the machine, effectively shortening auxiliary time, improving equipment utilization, and resulting in smooth overall operation and a high degree of automation, suitable for continuous and stable batch production.
[0023] Furthermore, the loading station 5, grinding station 6, and unloading station 7 of this invention are all equipped with fixtures 8. The fixture 8 includes a main base plate 9 mounted on the conversion table 3. The main base plate 9 is equipped with a zero-point positioning device 20, enabling the fixture 8 to achieve rapid, high-precision, and high-rigidity positioning and locking between itself and the equipment worktable. Through a standardized positioning interface, the fixture can be repeatedly changed after a single benchmark setting, resulting in high repeatability, fast clamping speed, and good rigidity, reducing debugging time, improving processing consistency, and adapting to multi-variety and flexible production. In addition, the main base plate 9 is equipped with several sets of clamping cylinder assemblies. The fixture 8 is equipped with an electrical module 12 and a pneumatic module 13, with the pneumatic module 13 used to control the clamping cylinder assemblies. In this embodiment, there are two sets of clamping cylinder assemblies, located on both sides of the main base plate 9. Each set of clamping cylinder assemblies has three clamping cylinders 10 arranged in a triangular relationship, with a positioning pin 11 below each clamping cylinder 10.
[0024] Furthermore, the converter table 3 in this invention is equipped with a grating 14. A soft curtain 18 is provided at the workstation, and a waste cart 19 is provided below the workstation.
[0025] The grinding method of the dual-conversion-table three-station grinding device of the present invention, implemented on the above-mentioned grinding device, includes the following steps: (1) Place the product on the tooling 8 of the loading station 5 of the left grinding machine 1 and the right grinding machine 2, and place two products on the left and right sides at the same time. (2) After placing the product, press the start button of the left grinding machine 1 and the right grinding machine 2 respectively to put the left grinding machine 1 and the right grinding machine 2 into the ready-to-run state. (3) Remove the polished product from tooling 8, and then press the finish button on the left polishing machine 1 and the right polishing machine 2; (4) After all the buttons in step (3) are pressed, the operator is located outside the grating 14, the conversion table 3 rotates, the loading station 5 rotates into the interior, the grinding robot 16 starts grinding, and after the grinding robot 16 finishes, the grinding station 6 rotates to the unloading station 7, and the unloading station 7 rotates to the loading station 5. (5) Repeat steps (1)-(4) above.
[0026] This invention features high integration, a compact and simple structure, and a small footprint, reducing external piping and wiring, making on-site installation and layout easier. At the same time, the high degree of component integration and fewer connection links effectively reduce the failure rate, improve operational stability, increase assembly and debugging efficiency, and make subsequent maintenance more convenient, resulting in a significant improvement in overall operational efficiency and reliability.
[0027] The above embodiments are only used to explain the inventive concept of the present invention, and are not intended to limit the protection of the present invention. Any non-substantial modifications made to the present invention using this concept should fall within the protection scope of the present invention.
Claims
1. A grinding device with a dual-change-table, three-station configuration, characterized in that: The system includes a left grinding machine and a right grinding machine. Both the left and right grinding machines are equipped with a conversion table. The conversion table is driven by a conversion table drive mechanism. Each conversion table is equipped with a loading station, a grinding station, and a unloading station. Each loading station, grinding station, and unloading station is equipped with a fixture. The fixture includes a main base plate installed on the conversion table. The main base plate is equipped with several sets of clamping cylinder assemblies, and a positioning pin is provided below the clamping cylinder assembly.
2. The grinding device with dual conversion tables and three workstations as described in claim 1, characterized in that: The tooling is equipped with an electrical module and a pneumatic module, and the pneumatic module controls the clamping cylinder assembly.
3. The grinding device with dual conversion table and three stations as described in claim 1, characterized in that: The clamping cylinder assembly consists of two sets, located on both sides of the main base plate, and each set of clamping cylinder assembly has three clamping cylinders arranged in a triangular position.
4. The grinding device with dual conversion tables and three workstations as described in claim 1, characterized in that: The main base plate is equipped with a zero-point positioning device.
5. The grinding device with dual conversion table and three stations as described in claim 1, characterized in that: The converter stage is equipped with a grating.
6. The grinding device with dual conversion tables and three workstations as described in claim 1, characterized in that: Both the left and right grinding machines are equipped with robot mounting bases, on which grinding robots are mounted. The grinding robots have flexible deburring tools.
7. The grinding device with dual conversion table and three workstations as described in claim 1, characterized in that: The workstation is equipped with a soft curtain, and a waste cart is located below the workstation.
8. The grinding device with dual conversion table and three stations as described in claim 1, characterized in that: Both the left and right grinding machines are equipped with operation button boxes, control cabinet displays, and indicator lights.
9. A grinding method for a dual-change-table, three-station grinding device, characterized in that: Implemented on the polishing apparatus as described in any one of claims 1-7.
10. The grinding method of the dual-conversion-table three-station grinding device as described in claim 9, characterized in that... Includes the following steps: (1) Place the product on the tooling of the loading station of the left and right grinding machines, and place two products on the left and right sides at the same time. (2) After placing the product, press the start button of the left grinding machine and the right grinding machine respectively to put the left grinding machine and the right grinding machine into the ready-to-run state. (3) Remove the finished product from the tooling and then press the finish button on the left and right grinding machines; (4) After all the buttons in step (3) are pressed, the operator is located outside the grating, the conversion table rotates, the loading station moves into the interior, the grinding robot starts grinding, and after the grinding robot finishes, the grinding station moves to the unloading station, and the unloading station moves to the loading station. (5) Repeat steps (1)-(4) above.