Large sheet metal part corner polishing device

Abstract

The utility model discloses a large sheet metal part corner grinding device, which relates to the technical field of grinding devices and comprises a shell, a cleaning component and a grinding cylinder. The cleaning assembly is fixedly installed in the shell. A spiral groove is formed in the grinding cylinder. The cleaning assembly comprises a sliding block, a spring, a cleaning block and a guide groove. The sliding block is provided with a groove used for being fixedly connected with the spring. One ends of the springs are fixedly connected with cleaning blocks. The guide groove is fixedly connected in the shell; the sliding block is slidably connected into the guide groove. The cleaning block is attached to the spiral groove. According to the utility model, the corners of the large sheet metal part are polished. The cleaning block is driven to move up and down under the action of the sliding block, it is guaranteed that the cleaning block is attached to the spiral groove all the time, and residues hidden in the spiral groove are removed when corners are polished. And in the process of polishing the corners of the large sheet metal part, residues generated in the spiral groove are cleaned, and the consequences that the residues are left in the spiral groove, the polishing efficiency is affected, and polishing is uneven are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding devices, in particular to a device for grinding corners of large sheet metal parts. Background Art

[0002] With the continuous innovation and upgrading of modern industrial manufacturing technology, the field of sheet metal processing has seen significant development and breakthroughs in equipment, materials, processes, and technologies. In particular, in the field of automotive parts processing, post-forming processing of sheet metal parts has become a key link in improving product quality and efficiency.

[0003] Sheet Metal Processing: Sheet metal parts are typically formed through methods such as stamping and shearing, which creates sharp edges and corners. These sharp edges require polishing to improve product safety and aesthetics. Traditional Manual Polishing: Early sheet metal corner polishing was primarily performed manually using sandpaper or a grinder. This method is inefficient, labor-intensive, and difficult to guarantee polishing quality. The Development of Automated Polishing Equipment: With the automation of the manufacturing industry, various automated edge polishing equipment, such as industrial robots and CNC grinders, have emerged. These devices can significantly improve polishing efficiency and quality while reducing labor costs. Characteristics and Difficulties of Polishing Large Parts: The large size and complex structure of large sheet metal parts present unique challenges to the polishing process, such as difficult clamping and positioning, difficulty covering the polishing area, uneven polishing, and difficulty cleaning residues during the polishing process. This requires polishing equipment with a larger working range and greater flexibility.

[0004] In the prior art, a Chinese patent with publication number CN219767673U has been proposed to solve the above-mentioned technical problems. The technical solution disclosed in the patent document is as follows: a grinding device for large metal castings, including a servo motor and a fixed cylinder whose end is fixed by a support rod, a fixed plate fixed to the end of the fixed cylinder, two fixed bearings and two support bearings fixed through the fixed plate and the end of the fixed cylinder, the power output end of the servo motor is the power end, two driving gears are nested on the power end, and a rotating rod is fixed through the middle of the two support bearings. The two driving gears in the utility model are respectively engaged with two driven gears, and the two driven gears are located at both ends of the grinding cylinder, so that the two ends of the grinding cylinder are subjected to the same torque, so that the forces at both ends of the grinding cylinder are evenly distributed, and the grinding cylinder can be stably driven to rotate at a high degree, preventing vibration when the grinding cylinder is rotating and grinding. However, residues generated during the grinding process may accumulate in the spiral groove, thereby reducing the grinding efficiency and causing uneven grinding. Utility Model Content

[0005] The purpose of the utility model is to provide a large sheet metal corner grinding device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A device for grinding the edges and corners of large sheet metal parts comprises a housing, a cleaning assembly, and a grinding cylinder. The cleaning assembly is fixedly mounted within the housing. The grinding cylinder has a spiral groove. The cleaning assembly comprises a slider, a spring, a cleaning block, and a guide groove. The slider has a groove for securely connecting to the spring. One end of the spring is fixedly connected to the cleaning block. The guide groove is fixedly connected to the housing; the slider slides within the guide groove. The cleaning block engages the spiral groove.

[0008] Using this technical solution, when sanding large sheet metal parts, the grinding drum rotates, polishing the edges and corners of the workpiece through spiral grooves on its surface. A slider drives the cleaning block up and down, ensuring it remains in contact with the spiral grooves, cleaning any residue that may have been hidden within them during sanding. During rotation, the spring is compressed, allowing the cleaning block to enter the grooves, making it suitable for cleaning spiral grooves of varying depths.

[0009] A further improvement of the technical solution of the present utility model is that it also includes a power assembly. The power assembly includes a motor, two driving gears, and a transmission rod. The motor is fixedly mounted on the housing. One end of the transmission rod is fixedly connected to the motor. The two driving gears are fixedly connected to both ends of the transmission rod.

[0010] The above technical solution is adopted, in which the driving rod is driven to rotate by the operation of the motor, so that the driving gears at both ends rotate synchronously.

[0011] A further improvement of the technical solution of the present utility model is that it also includes a transmission assembly 1. The transmission assembly 1 includes two spur gears and a reciprocating screw. The reciprocating screw is fixedly mounted within the housing. The two spur gears are fixedly mounted at both ends of the reciprocating screw. The slider is threaded onto the reciprocating screw. The spur gears mesh with the driving gear.

[0012] The above technical solution is adopted. In this solution, when the driving gear rotates, it drives the meshing spur gear to rotate, causing the reciprocating screw to rotate accordingly, and allowing the slider screwed on the reciprocating screw to move up and down repeatedly, thereby ensuring that the cleaning block always fits the spiral groove.

[0013] A further improvement of the technical solution of the present utility model is that it also includes a second transmission assembly. The second transmission assembly includes a rotating rod and two driven gears. The rotating rod is fixedly mounted within the housing. Driven gears are nested at both ends of the rotating rod. A grinding cylinder is nested in the rotating rod. The driven gears mesh with the driving gear.

[0014] With the above technical solution, when the driving gear rotates, it drives the meshing driven gear to rotate accordingly, causing the rotating rod to move accordingly, driving the grinding cylinder nested on it to rotate, thereby achieving grinding of the edges and corners of large sheet metal parts.

[0015] The further improvement of the technical solution of the utility model is that: a plurality of heat dissipation openings are provided on the surface of the shell. The cleaning block is trapezoidal in shape as a whole.

[0016] By adopting the above technical solution, the shape of the cleaning block in this solution can also be other shapes, as long as it can meet the requirements of cleaning the spiral groove.

[0017] A further improvement of the technical solution of the utility model is that: a notch is provided on the surface of the shell, the grinding cylinder is located on one side of the notch of the shell, and the grinding cylinder protrudes from the side of the shell.

[0018] By adopting the above technical solution, the protrusion from the side can come into contact with the large sheet metal part, thereby better realizing the grinding of the edges and corners of the large sheet metal part.

[0019] A further improvement of the technical solution of the present invention is that it further comprises a mechanical arm, and the housing is fixedly mounted on the mechanical arm.

[0020] By adopting the above technical solution, the edges and corners of large sheet metal parts can be polished at any angle through the robotic arm. This is flexible and convenient. Workers only need to operate the machine to work, thereby reducing the burden on workers and improving work efficiency.

[0021] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0022] 1. The utility model provides a device for grinding the edges and corners of large sheet metal parts. When grinding large sheet metal parts, the grinding cylinder rotates and grinds the edges and corners of the large sheet metal parts through the spiral grooves opened on the surface. The cleaning block is driven up and down by the action of the slider to ensure that the cleaning block always fits the spiral groove and cleans the residue hidden in the spiral groove when grinding the corners. During the rotation process, the spring is squeezed to allow the cleaning block to enter the groove, which is suitable for cleaning spiral grooves of different depths. Through the above-mentioned mutual cooperation, the residue generated in the spiral groove during the grinding of the edges and corners of large sheet metal parts is cleaned, avoiding the residue remaining in the spiral groove, affecting the grinding efficiency, and causing uneven grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model without the mechanical arm;

[0025] Figure 2 for Figure 1 Schematic diagram of the cleaning component from above;

[0026] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0027] Figure 4 for Figure 1 Schematic diagram of the main structure;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the utility model;

[0029] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure along the CC direction.

[0030] In the figure: 1. Housing; 2. Cleaning assembly; 21. Slider; 22. Spring; 23. Cleaning block; 24. Guide groove; 3. Power assembly; 31. Motor; 32. Driving gear; 33. Transmission rod; 4. Transmission assembly 2; 41. Rotating rod; 43. Driven gear; 5. Robotic arm; 6. Transmission assembly 1; 61. Spur gear; 62. Reciprocating screw; 7. Grinding cylinder; 71. Spiral groove. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below with reference to the embodiments:

[0032] Example 1

[0033] like Figure 1-6 As shown, the utility model provides a device for grinding corners of large sheet metal parts, including a housing 1, a cleaning component 2, and a grinding cylinder 7. The cleaning component 2 is fixedly installed in the housing 1. The grinding cylinder 7 is provided with a spiral groove 71. The cleaning component 2 includes a slider 21, a spring 22, a cleaning block 23, and a guide groove 24. The slider 21 is provided with a groove for fixing the spring 22. One end of the spring 22 is fixedly connected to the cleaning block 23. The guide groove 24 is fixedly connected in the housing 1; the slider 21 is slidably connected in the guide groove 24. The cleaning block 23 is in contact with the spiral groove 71.

[0034] In this embodiment, the polishing cylinder 7 can be made of carbon steel, 201 stainless steel, 304 stainless steel, etc. A brush is provided at the front end of the cleaning block 23. The brush can be made of synthetic fibers such as nylon or polyester. Of course, it can also be replaced with a brush of a different material depending on the application. When polishing large sheet metal parts, the polishing cylinder 7 rotates and polishes the edges and corners of the large sheet metal parts through the spiral groove 71 provided on the surface. Under the action of the slider 21, the cleaning block 23 is driven to move up and down. At the same time, the slider 21 slides up and down in the guide groove 24 to limit the position, preventing the slider 21 from deviating from the spiral groove 71, ensuring that the cleaning block 23 always adheres to the spiral groove 71 to clean the residue hidden in the spiral groove 71 when polishing the edges and corners. During the rotation process, the spring 22 is squeezed to allow the cleaning block 23 to enter the groove, suitable for cleaning in spiral grooves 71 of different depths. Through the above-mentioned mutual cooperation, the residues generated in the spiral groove 71 are cleaned during the grinding process of the edges and corners of large sheet metal parts, avoiding the residues remaining in the spiral groove 71, affecting the grinding efficiency and causing uneven grinding.

[0035] like Figure 1-6 As shown, in this embodiment, preferably, a power assembly 3 is also included. The power assembly 3 includes a motor 31, two driving gears 32, and a transmission rod 33. The motor 31 is fixedly mounted on the housing 1. One end of the transmission rod 33 is fixedly connected to the motor 31. The two driving gears 32 are fixedly connected to both ends of the transmission rod 33. When it is necessary to grind the edges and corners of large sheet metal parts, the motor 31 is started to start the motor 31, and the transmission rod 33 is rotated under the drive of the motor 31, driving the driving gears 32 at both ends to rotate synchronously. Using the motor 31 to drive improves work efficiency and reduces the burden on workers.

[0036] like Figure 1-6 As shown, in this embodiment, preferably, a transmission component 6 is also included. The transmission component 6 includes two spur gears 61 and a reciprocating screw 62. The reciprocating screw 62 is fixedly installed in the housing 1. The two spur gears 61 are respectively fixedly installed at both ends of the reciprocating screw 62. The slider 21 is screwed on the reciprocating screw 62. The spur gear 61 is meshed with the driving gear 32. When the driving gear 32 rotates, it drives the meshing spur gear 61 to rotate, causing the reciprocating screw 62 to rotate accordingly, and allowing the slider 21 screwed on the reciprocating screw 62 to perform a reciprocating up and down movement, thereby ensuring that the cleaning block 23 is always in contact with the spiral groove 71.

[0037] like Figure 1-6As shown, in this embodiment, preferably, a transmission component 2 4 is also included. The transmission component 2 4 includes a rotating rod 41 and two driven gears 43. The rotating rod 41 is fixedly installed in the housing 1. Driven gears 43 are nested at both ends of the rotating rod 41. A grinding cylinder 7 is nested on the rotating rod 41. The driven gear 43 is engaged with the driving gear 32. The rotating rod 41 is cylindrical as a whole. The material of the rotating rod 41 can be any one of carbon steel, aluminum alloy, stainless steel, ordinary steel and round steel. When the driving gear 32 rotates, the meshed driven gear 43 is driven to rotate, causing the rotating rod 41 to move accordingly. The grinding cylinder 7 nested on it is driven to rotate, thereby realizing the grinding of the edges and corners of large sheet metal parts.

[0038] like Figure 1-6 As shown, in this embodiment, the housing 1 is preferably provided with multiple heat dissipation openings. The cleaning block 23 is generally trapezoidal in shape. The notches provided on the housing 1 allow for ventilation and heat dissipation, preventing safety hazards during prolonged polishing. They also facilitate observation of the overall operating status of the device. The cleaning block 23 may also have other shapes, as long as they are sufficient to clean the spiral groove 71.

[0039] like Figure 1-6 As shown, in this embodiment, preferably, a notch is provided on the surface of the housing 1. A grinding cylinder 7 is located on one side of the notch of the housing 1. The grinding cylinder 7 protrudes from the side of the housing 1. The grinding cylinder 7 protruding from the side can contact a large sheet metal part, thereby better achieving grinding of the edges and corners of the large sheet metal part.

[0040] like Figure 1-6 As shown, preferably, a robotic arm 5 is also included. The housing 1 is fixedly mounted on the robotic arm 5. The material of the robotic arm 5 can be any one of aluminum alloy, carbon fiber, stainless steel, plastic, etc. The style and shape of the robotic arm 5 can be any one on the market, as long as it can meet the multi-angle movement requirements of the housing 1. The robotic arm 5 can be used to grind the edges and corners of large sheet metal parts at any angle, which is flexible and convenient. The worker only needs to operate the machine to work, thereby reducing the burden on the worker and improving work efficiency.

[0041] The following is a detailed description of the working principle of the large sheet metal corner grinding device.

[0042] like Figure 1-6As shown, when grinding the edges and corners of large sheet metal parts, the robot arm 5 is first adjusted to the desired grinding position. Then, the motor 31 is started and begins to operate. Driven by the motor 31, the transmission rod 33 rotates, driving the driving gears 32 at both ends to rotate synchronously. When the driving gear 32 rotates, the meshing driven gear 43 rotates with it, causing the rotating rod 41 to move accordingly, driving the grinding cylinder 7 nested above it to rotate, grinding the edges and corners of the large sheet metal parts through the spiral groove 71. At the same time, the meshing spur gear 61 rotates, causing the reciprocating screw 62 to rotate with it, causing the slider 21 screwed to the reciprocating screw 62 to move up and down repeatedly, driving the cleaning block 23 to move up and down. At the same time, the slider 21 slides up and down within the guide groove 24 to limit its position, preventing it from deviating from the spiral groove 71 and ensuring that the cleaning block 23 remains in contact with the spiral groove 71, cleaning the residue hidden in the spiral groove 71 during the grinding process. During the rotation, the spring 22 is squeezed, causing the cleaning block 23 to enter the groove, thereby cleaning the spiral groove 71 of varying depths. This allows for cleaning of residues generated within the spiral groove 71 during the grinding of large sheet metal corners, preventing residues from being left within the spiral groove 71, which could affect grinding efficiency and cause uneven grinding.

[0043] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. Large sheet metal corner grinding device, characterized by: The invention comprises a housing (1), a cleaning assembly (2), and a grinding cylinder (7); the cleaning assembly (2) is fixedly installed in the housing (1); the grinding cylinder (7) is provided with a spiral groove (71); the cleaning assembly (2) comprises a slider (21), a spring (22), a cleaning block (23), and a guide groove (24); the slider (21) is provided with a groove for fixedly connecting the spring (22); one end of the spring (22) is fixedly connected to the cleaning block (23); the guide groove (24) is fixedly connected in the housing (1); the slider (21) is slidably connected in the guide groove (24); and the cleaning block (23) is in contact with the spiral groove (71).

2. The large sheet metal corner grinding device according to claim 1, characterized in that: It also includes a power assembly (3); the power assembly (3) includes a motor (31), two driving gears (32), and a transmission rod (33); the motor (31) is fixedly mounted on the housing (1); one end of the transmission rod (33) is fixedly connected to the motor (31); and the two driving gears (32) are respectively fixedly connected to both ends of the transmission rod (33).

3. The large sheet metal corner grinding device according to claim 2, characterized in that: The invention also includes a transmission component (6); the transmission component (6) includes two spur gears (61) and a reciprocating screw (62); the reciprocating screw (62) is fixedly mounted in the housing (1); the two spur gears (61) are respectively fixedly mounted at both ends of the reciprocating screw (62); the slider (21) is screwed onto the reciprocating screw (62); and the spur gears (61) are meshed with the driving gear (32).

4. The large sheet metal corner grinding device according to claim 2, characterized in that: The invention also includes a second transmission component (4); the second transmission component (4) includes a rotating rod (41) and two driven gears (43); the rotating rod (41) is fixedly installed in the housing (1); the driven gears (43) are nested at both ends of the rotating rod (41); the grinding cylinder (7) is nested on the rotating rod (41); the driven gears (43) are meshed with the driving gear (32).

5. The large sheet metal corner grinding device according to claim 1, characterized in that: The surface of the housing (1) is provided with a plurality of heat dissipation openings; the cleaning block (23) is trapezoidal in shape as a whole.

6. The large sheet metal corner grinding device according to claim 5, characterized in that: A notch is provided on the surface of the shell (1); the grinding cylinder (7) is located on one side of the notch of the shell (1); and the grinding cylinder (7) protrudes from the side of the shell (1).

7. The large sheet metal corner grinding device according to claim 6, characterized in that: It also includes a mechanical arm (5); the housing (1) is fixedly mounted on the mechanical arm (5).

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