Surface grinding device for sheet metal machining
By fixing the turntable and pressure plate and designing an inclined cleaning brush, the problem of wear on the electric telescopic rod in existing equipment is solved, achieving efficient grinding and debris removal of sheet metal surfaces and improving the stability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN FANGYUAN XINDA INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-19
AI Technical Summary
In the existing sheet metal processing equipment, the first electric telescopic rod is easily affected by lateral force during the grinding process, which leads to increased wear and affects the telescopic function and grinding efficiency.
It adopts a fixed method of combining a turntable and a pressure plate. The grinding rod is driven to rotate by a second motor. Combined with the inclined cleaning brush, it automatically removes debris and uses the turntable to drive the sheet metal to rotate for efficient grinding.
It improves the stability and efficiency of sheet metal grinding, reduces debris residue, lowers equipment maintenance difficulty and cost, and protects the safety of operators.
Smart Images

Figure CN224254958U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sheet metal processing technology, specifically to a surface grinding device for sheet metal processing. Background Technology
[0002] Sheet metalworking refers to the process of shaping thin metal sheets, profiles, and tubes into parts with specific shapes, dimensions, and precision using manual or mechanical methods. It is a commonly used metal processing technology. During the production and processing of sheet metal, burrs or rough edges are easily present on the surface. In order to meet subsequent requirements, the surface needs to be polished.
[0003] Chinese utility model patent application number 202321210011.3 provides a surface grinding device for sheet metal forging processing. Through the cooperation of a first electric telescopic rod, a limiting frame, a limiting plate and a limiting screw, the device can fix sheet metal forgings of different sizes and lengths. The cooperation of a first rotary motor and a first bearing enables the device to flip the sheet metal forgings, thereby greatly increasing the practicality of the device. The cooperation of a second rotary motor, a second electric telescopic rod and a grinding head enables the device to automatically grind the sheet metal forgings.
[0004] However, during the use of the above equipment, it was found that, because the equipment uses the first electric telescopic rod to horizontally push the limit frame to clamp the sheet metal when controlling the sheet metal, the first electric telescopic rod is easily affected by lateral forces during the grinding process. Over time, this causes the internal parts of the first electric telescopic rod to wear out more quickly, which in turn affects the extension and retraction of the first electric telescopic rod, and consequently affects the movement of the sheet metal, resulting in reduced grinding efficiency. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a surface grinding device for sheet metal processing, which solves the problem mentioned in the background technology that when controlling sheet metal, the first electric telescopic rod is used to horizontally push the limiting frame to clamp the sheet metal. During the grinding process, the first electric telescopic rod is easily affected by lateral forces, and long-term use will aggravate the wear of its internal parts, thereby affecting the telescopic function.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a surface grinding device for sheet metal processing, comprising an operating table, a turntable installed in the operating table, the turntable being connected to the output end of a first motor, a bracket installed on the top of the operating table, a first electric telescopic rod mounted on the bracket, the output end of the first electric telescopic rod being connected to a connecting frame in a grinding assembly, a second electric telescopic rod mounted on the connecting frame, a pressure plate rotatably connected to the output end of the second electric telescopic rod, the pressure plate corresponding to the turntable, mounting frames at both ends of the bottom of the connecting frame, a protective cover bolted to the bottom of the mounting frame at one end of the connecting frame, a grinding rod rotatably mounted in the protective cover, and the grinding rod being connected to the output end of a second motor.
[0007] Preferably, the bottom of the mounting bracket at the other end of the connecting frame is bolted to a connecting plate, and the bottom of the connecting plate is provided with a mounting groove in which a cleaning brush is inserted.
[0008] Preferably, the mounting groove is inclined.
[0009] Preferably, the top surface of the turntable and the bottom surface of the pressure plate are both bonded with anti-slip pads.
[0010] Preferably, the bottom front side of the operating table is connected to a placement groove, and the top of the placement groove is provided with a feeding port, which is connected to the top surface of the operating table.
[0011] Preferably, a collection box is inserted into the placement slot, and a handle is installed on the outside of the collection box.
[0012] This utility model provides a surface grinding device for sheet metal processing. It has the following beneficial effects:
[0013] (1) This utility model uses a second motor to drive the grinding rod to rotate and grind the sheet metal. The sheet metal is fixed by using a turntable and a pressure plate. The rotation of the turntable drives the sheet metal to rotate, and the grinding rod is used to achieve efficient grinding of the sheet metal surface.
[0014] (2) By setting a cleaning brush, the present invention uses a turntable to drive the sheet metal to rotate, which can automatically clean the debris on the sheet metal. At the same time, because the cleaning brush is tilted, the debris is automatically removed from the sheet metal under the guidance of the turntable rotation and the cleaning brush, reducing debris residue. Attached Figure Description
[0015] Figure 1 This is a diagram showing the overall structure of this utility model;
[0016] Figure 2 This is a bottom view of the overall structure of this utility model;
[0017] Figure 3 This utility model Figure 1 Structural diagram of the central control panel;
[0018] Figure 4 This utility model Figure 1 Structural diagram of the grinding component;
[0019] Figure 5 This utility model Figure 4 Bottom view of the grinding component.
[0020] In the diagram, 1 is the control panel; 11 is the feed inlet; 12 is the placement trough; 13 is the collection box; 14 is the turntable; and 15 is the first motor.
[0021] 2. Support frame; 3. First electric telescopic pole;
[0022] 4. Grinding assembly; 41. Connecting bracket; 42. Second electric telescopic rod; 43. Pressure plate; 44. Mounting bracket; 45. Protective cover; 451. Grinding rod; 452. Second motor; 46. Connecting plate; 461. Mounting slot; 462. Cleaning brush. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] Example 1:
[0025] Please see Figures 1-5 This utility model provides a surface grinding device for sheet metal processing, including an operating table 1, a turntable 14 installed in the operating table 1, the turntable 14 being connected to the output end of a first motor 15, a bracket 2 installed on the top of the operating table 1, a first electric telescopic rod 3 installed on the bracket 2, the output end of the first electric telescopic rod 3 being connected to a connecting frame 41 in a grinding assembly 4, a second electric telescopic rod 42 installed on the connecting frame 41, a pressure plate 43 rotatably connected to the output end of the second electric telescopic rod 42, the pressure plate 43 corresponding to the turntable 14, mounting frames 44 being provided at both ends of the bottom of the connecting frame 41, a protective cover 45 being bolted to the bottom of the mounting frame 44 at one end of the connecting frame 41, a grinding rod 451 rotatably installed in the protective cover 45, and the grinding rod 451 being connected to the output end of a second motor 452;
[0026] The bottom of the mounting bracket 44 at the other end of the connecting bracket 41 is connected to the connecting plate 46 by bolts. The bottom of the connecting plate 46 is provided with a mounting groove 461, and a cleaning brush 462 is inserted into the mounting groove 461.
[0027] Mounting slot 461 is inclined;
[0028] Anti-slip pads are adhered to the top surface of turntable 14 and the bottom surface of pressure plate 43;
[0029] The bottom front side of the operating table 1 is connected to a placement groove 12, and the top of the placement groove 12 is provided with a feed inlet 11, which is connected to the top surface of the operating table 1.
[0030] A collection box 13 is inserted into the placement slot 12, and a handle is installed on the outside of the collection box 13.
[0031] Specifically, the sheet metal to be polished is placed on the turntable 14, and the height of the connecting frame 41 is adjusted by the first electric telescopic rod 3 on the bracket 2 so that the pressure plate 43 is close to the sheet metal. Then, the second electric telescopic rod 42 on the connecting frame 41 extends, driving the pressure plate 43 to move downward, and the sheet metal is firmly clamped by the anti-slip pads that are bonded between the top surface of the turntable 14 and the bottom surface of the pressure plate 43.
[0032] The first motor 15 is started, and its output end drives the turntable 14 to rotate, which in turn drives the clamped sheet metal to rotate. At the same time, the second motor 452 in the bottom protective cover 45 of the mounting bracket 44 at one end of the connecting bracket 41 is started. The output end of the second motor 452 drives the grinding rod 451 to rotate, grinding the rotating sheet metal surface.
[0033] During the polishing process, as the turntable 14 rotates the sheet metal, the cleaning brush 462 in the inclined mounting groove 461 on the bottom connecting plate 46 of the mounting bracket 44 at the other end of the connecting bracket 41 will clean the polishing debris from the sheet metal surface. The debris is removed from the sheet metal by the cleaning brush 462, making it easier for it to enter the collection box 13 in the placement groove 12 through the feed port 11 at the top of the placement groove 12 at the bottom front side of the operating table 1.
[0034] The first electric telescopic rod 3, in conjunction with the second electric telescopic rod 42, drives the pressure plate 43 and the turntable 14 to clamp the sheet metal. The anti-slip pads on the top surface of the turntable 14 and the bottom surface of the pressure plate 43 can effectively prevent the sheet metal from sliding during the grinding process, ensuring the stability and precision of the grinding. At the same time, the first motor 15 drives the turntable 14 to rotate, making the sheet metal rotate continuously. Combined with the high-speed rotation of the grinding rod 451, the sheet metal surface can be ground comprehensively and efficiently, improving the grinding efficiency.
[0035] Both the connecting plate 46 and the protective cover 45 are bolted to the connecting frame 41, allowing for quick and easy fixation of the connecting plate 46 and the protective cover 45 to the connecting frame 41. Furthermore, they can be easily disassembled when the equipment needs maintenance, parts replacement, or cleaning, significantly saving installation and maintenance time.
[0036] Mounting slot 461 securely fixes cleaning brush 462 in place. Over time, cleaning brush 462 will wear down, resulting in reduced cleaning effectiveness. Mounting slot 461 simplifies brush replacement; simply pull the old brush 462 out of the slot and insert the new one. This reduces maintenance difficulty and costs. Furthermore, the angled mounting slot 461 allows the brush 462 to be installed at a tilted angle. When the sheet metal rotates, debris can slide off the surface along the brush 462, improving cleaning efficiency and reducing debris residue on the sheet metal.
[0037] The protective cover 45 can prevent debris from flying during the grinding process, protecting the safety of the operator, and also prevent external impurities from entering the grinding area and affecting the grinding quality.
[0038] The debris generated during grinding can be swept through the feed inlet 11 into the placement tank 12, where a collection box 13 is inserted. The collection box 13 can collect the debris, and the handle installed on its outside makes it easy for operators to pull out the collection box 13 for cleaning, making equipment maintenance more convenient.
[0039] Working principle: The sheet metal to be ground is placed on the turntable 14 in the operating table 1. The height of the connecting frame 41 is flexibly adjusted by the first electric telescopic rod 3 on the bracket 2, allowing the pressure plate 43 to gradually approach the sheet metal. Subsequently, the second electric telescopic rod 42 on the connecting frame 41 extends, driving the pressure plate 43 downward. With the help of the anti-slip pads on the top surface of the turntable 14 and the bottom surface of the pressure plate 43, the sheet metal is firmly clamped, ensuring that it will not slip during subsequent grinding, thus laying the foundation for the stability and precision of grinding.
[0040] Next, the polishing stage begins. The first motor 15 is started, which drives the turntable 14 to rotate, thereby causing the clamped sheet metal to rotate synchronously. At the same time, the second motor 452 in the bottom protective cover 45 of the mounting bracket 44 at one end of the connecting bracket 41 is activated. The second motor 452 drives the polishing rod 451 to rotate at high speed, polishing the rotating sheet metal surface. With the continuous rotation of the sheet metal and the high-speed rotation of the polishing rod 451, a comprehensive and efficient polishing of the sheet metal surface is achieved.
[0041] During the polishing process, debris is generated. As the turntable 14 rotates the sheet metal, the cleaning brush 462 in the inclined mounting groove 461 on the bottom connecting plate 46 of the mounting bracket 44 at the other end of the connecting bracket 41 cleans the polishing debris from the sheet metal surface. The cleaning brush 462 uses the tilt angle and the centrifugal force of the sheet metal rotation to sweep the debris off the sheet metal surface, making it easier for the debris to pass through the feed port 11 at the top of the placement groove 12 at the bottom front side of the operating table 1 and enter the collection box 13 in the placement groove 12 for subsequent cleaning.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A surface grinding device for sheet metal processing, comprising an operating table (1), characterized in that: A turntable (14) is installed in the operating table (1). The turntable (14) is connected to the output end of the first motor (15). A bracket (2) is installed on the top of the operating table (1). A first electric telescopic rod (3) is provided on the bracket (2). The output end of the first electric telescopic rod (3) is connected to the connecting frame (41) in the grinding assembly (4). A second electric telescopic rod (42) is installed on the connecting frame (41). A pressure plate (43) is rotatably connected to the output end of the second electric telescopic rod (42). The pressure plate (43) corresponds to the turntable (14). Mounting brackets (44) are provided at both ends of the bottom of the connecting frame (41). A protective cover (45) is bolted to the bottom of the mounting bracket (44) at one end of the connecting frame (41). A grinding rod (451) is rotatably provided in the protective cover (45). The grinding rod (451) is connected to the output end of the second motor (452).
2. The surface grinding device for sheet metal processing according to claim 1, characterized in that: The bottom of the mounting bracket (44) at the other end of the connecting bracket (41) is connected to a connecting plate (46) by bolts. The bottom of the connecting plate (46) is provided with a mounting groove (461), and a cleaning brush (462) is inserted into the mounting groove (461).
3. The sheet metal processing surface grinding device according to claim 2, characterized in that: The mounting groove (461) is inclined.
4. The surface grinding device for sheet metal processing according to claim 1, characterized in that: The top surface of the turntable (14) and the bottom surface of the pressure plate (43) are both bonded with anti-slip pads.
5. The surface grinding device for sheet metal processing according to claim 1, characterized in that: The bottom front side of the operating table (1) is connected to a placement groove (12), and the top of the placement groove (12) is provided with a feed inlet (11) and is connected to the top surface of the operating table (1) through the feed inlet (11).
6. The surface grinding device for sheet metal processing according to claim 5, characterized in that: A collection box (13) is inserted into the placement slot (12), and a handle is installed on the outside of the collection box (13).