A sander for chamfering metal pieces

Abstract

The utility model relates to the technical field of sander, specifically relates to a sanding machine for chamfering and polishing of metal parts, which comprises: a rack, one side of the rack is provided with a mounting disc, the inside of the rack is provided with a clamping device, the outside of the mounting disc is provided with a sanding edge device. Through the clamping device, the rotating disc driven by the hydraulic cylinder and the protective pad can not only firmly clamp the metal parts to prevent deviation during polishing, but also can avoid surface damage caused by hard contact. At the same time, the driving motor drives the workpiece to rotate, ensuring that all parts of the chamfer can be evenly polished. Through the sanding edge device, the unwinding rod is self-adjusted to adapt to different chamfer radii by adjusting the tension of the polishing belt. The spring telescopic rod can drive the rotating roller to self-adaptively adjust the position through elastic deformation, so that the polishing belt always adheres to the arc chamfer surface of the irregular workpiece. The traditional equipment is improved to avoid the local polishing failure or excessive polishing phenomenon due to insufficient adaptability, and the processing quality of complex workpieces is improved.

Description

Technical Field

[0001] This utility model relates to the field of sanding machine technology, specifically to a sanding machine used for chamfering and grinding metal parts. Background Technology

[0002] In the existing technology, sanding machines have shortcomings. The clamping device mostly adopts a simple clamping structure, which makes the workpiece prone to displacement during rotational grinding, resulting in deviations in chamfer accuracy. In addition, the sanding device has limited adaptability, and the tension of the grinding belt is fixed, making it difficult to adapt to chamfers of different curvatures. When dealing with irregular workpieces, local over-grinding or under-grinding problems often occur, affecting the processing quality.

[0003] Therefore, in response to the above-mentioned shortcomings, this utility model provides a sander for chamfering and grinding metal parts. It utilizes a clamping device with reinforcing ribs on the tray to improve load-bearing stability. Combined with a hydraulically driven rotating disc and protective pads, it achieves stable clamping while preventing workpiece damage. The sanding edge device adjusts the tension of the sanding belt with the help of an unfolding rod. Combined with the elastic deformation of the spring telescopic rod, the rotating roller can adaptively adapt to chamfers of different curvatures and irregular workpieces, effectively solving the problem of poor adaptability in the prior art and meeting the urgent need of the sleeve sander industry for the chamfering and grinding function of sanders. Utility Model Content

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model to solve its technical problems is: a sanding machine for chamfering and grinding metal parts, comprising: a frame, a mounting plate on one side of the frame, a clamping device inside the frame, and a sanding edge device outside the mounting plate; the sanding edge device includes a rotating roller, a grinding belt slidably connected to the outer wall of the rotating roller, and an unfolding rod symmetrically rotatably connected to the outer wall of the rotating roller.

[0005] Preferably, a spring telescopic rod is rotatably connected to the outer wall of the rotating roller away from the unfolded end. A fixing block is fixedly connected to the outer wall of the spring telescopic rod away from the rotating roller. A drive motor is fixedly connected to the outer wall of the rotating roller. The metal workpiece to be ground is placed on the tray of the clamping device. The reinforcing ribs at the bottom of the tray enhance structural stability and prevent deformation of the workpiece during placement. After the hydraulic cylinder is activated, its piston rod drives the rotating disk to descend. When the protective pad at the bottom of the rotating disk contacts the top surface of the workpiece, the piston rod continuously applies pressure, clamping the workpiece through the cooperation of the rotating disk and the tray. The protective pad prevents hard contact damage to the workpiece surface. Subsequently, the drive motor fixed to the frame is started. Because its output shaft is fixedly connected to the tray's rotating shaft, it drives the tray and workpiece to rotate synchronously, allowing the chamfered part of the workpiece to contact the grinding belt of the sanding device in sequence, facilitating all-round grinding.

[0006] Preferably, the outer wall of the mounting plate has an elongated through hole, and the outer wall of the rotating roller is slidably connected to the inner wall of the through hole of the mounting plate. After the drive motor of the sanding device is started, it drives the rotating roller to rotate, and the grinding belt on the outer wall of the rotating roller moves synchronously to generate grinding power. The unfolding rod on the outer wall of the rotating roller can rotate around it, and the angle can be adjusted to form tension on the grinding belt, ensuring that the grinding belt does not loosen during movement and ensuring stable grinding pressure. The rotating roller is slidably connected to the elongated through hole of the mounting plate and can move back and forth along the through hole, thereby adjusting the relative position of the grinding belt and the workpiece, so that the grinding belt is aligned with the rounded chamfer of the workpiece.

[0007] Preferably, the outer wall of the drive motor is fixedly connected to the outer wall of the mounting plate. One end of the spring telescopic rod of the sanding device is connected to the rotating roller, and the other end is fixed by a fixing block. When the workpiece surface is irregular, such as when the chamfer curvature fluctuates, the pressure generated by the contact between the grinding belt and the workpiece will be fed back to the rotating roller, causing the spring telescopic rod to undergo elastic deformation, which drives the rotating roller to adaptively adjust its position, so that the grinding belt always fits tightly against the rounded chamfer surface of the workpiece, avoiding insufficient or excessive grinding due to the irregularity of the workpiece.

[0008] Preferably, the clamping device includes a tray with reinforcing ribs fixedly connected to its bottom outer wall. A hydraulic cylinder is provided at the top of the tray, and a rotating disk is rotatably connected to the piston rod of the hydraulic cylinder. A protective gasket is fixedly connected to the outer wall of the rotating disk, and a drive motor is fixedly connected to the outer wall of the tray's rotating shaft. During overall operation, after the workpiece is placed on the tray, the hydraulic cylinder drives the rotating disk to clamp the workpiece, the drive motor drives the workpiece to rotate, and simultaneously the transmission motor drives the grinding belt to rotate. The position of the rotating roller is adjusted so that the grinding belt contacts the workpiece's chamfer. The unfolding rod keeps the grinding belt taut, and the spring telescopic rod adapts to the irregular surface of the workpiece, ultimately completing the grinding of the metal part's rounded chamfer.

[0009] Preferably, the outer wall of the hydraulic cylinder is fixedly connected to the outer wall of the frame, and the outer wall of the drive motor is fixedly connected to the inner wall of the frame. Through the sanding device, the tension of the grinding belt is adjusted by the unfolding rod to adapt to different arc chamfers. The spring telescopic rod can drive the rotating roller to adjust its position adaptively through elastic deformation, so that the grinding belt always fits the arc chamfer surface of the irregular workpiece. This avoids the phenomenon of local missed grinding or over-grinding due to insufficient adaptability of traditional equipment, and improves the processing quality of complex workpieces.

[0010] The beneficial effects of this utility model are as follows: 1. This utility model, by setting up a clamping device and using the reinforcing ribs of the tray to enhance the load-bearing capacity, combined with the rotating disk driven by the hydraulic cylinder and the protective pad, can not only firmly clamp the metal parts to prevent them from shifting during grinding, but also avoid surface damage caused by hard contact. At the same time, the drive motor drives the workpiece to rotate, ensuring that all parts of the chamfer can be ground evenly.

[0011] 2. This utility model, by setting up a sanding edge device, utilizes an unfolding rod to self-adjust the tension of the grinding belt to adapt to different curvature chamfers. The spring telescopic rod can drive the rotating roller to adaptively adjust its position through elastic deformation, so that the grinding belt always fits the curved chamfer surface of the irregular workpiece. This avoids the phenomenon of local missed grinding or over-grinding caused by insufficient adaptability of traditional equipment, and improves the processing quality of complex workpieces. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the back structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of this utility model; Figure 4 This is a schematic diagram of the clamping device of this utility model; Figure 5 This is a schematic diagram of the structure of the sanding device of this utility model; Figure 6 This is a schematic diagram of the structure of the spring telescopic rod of this utility model.

[0013] In the diagram: 1. Frame; 2. Mounting plate; 3. Clamping device; 4. Sanding device; 30. Tray; 31. Reinforcing rib; 32. Hydraulic cylinder; 33. Rotating disc; 34. Protective gasket; 35. Drive motor; 40. Rotating roller; 41. Grinding belt; 42. Unfolding rod; 43. Spring telescopic rod; 44. Fixing block; 45. Transmission motor. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0015] Example: Please see Figure 1 - Figure 6 This utility model provides a technical solution: a sander for chamfering and grinding metal parts, comprising: a frame 1, a mounting plate 2 on one side of the frame 1, a clamping device 3 inside the frame 1, and a sanding edge device 4 outside the mounting plate 2; the sanding edge device 4 includes a rotating roller 40, a sanding belt 41 slidably connected to the outer wall of the rotating roller 40, and an unfolding rod 42 symmetrically rotatably connected to the outer wall of the rotating roller 40.

[0016] A spring telescopic rod 43 is rotatably connected to the outer wall of the end of the rotating roller 40 away from the unfolding end. A fixing block 44 is fixedly connected to the outer wall of the end of the spring telescopic rod 43 away from the rotating roller 40. A drive motor 45 is fixedly connected to the outer wall of the rotating roller 40.

[0017] The outer wall of the mounting plate 2 has an elongated through hole, the outer wall of the rotating roller 40 is slidably connected to the inner wall of the through hole of the mounting plate 2, and the outer wall of the drive motor 45 is fixedly connected to the outer wall of the mounting plate 2.

[0018] The clamping device includes a tray 30, with a reinforcing rib 31 fixedly connected to the bottom outer wall of the tray 30. A hydraulic cylinder 32 is provided at the top of the tray 30. A rotating disk 33 is rotatably connected to the outer wall of the piston rod of the hydraulic cylinder 32. A protective gasket 34 is fixedly connected to the outer wall of the rotating disk 33. A drive motor 35 is fixedly connected to the outer wall of the rotating shaft of the tray 30. The outer wall of the hydraulic cylinder 32 is fixedly connected to the outer wall of the frame 1, and the outer wall of the drive motor 35 is fixedly connected to the inner wall of the frame 1.

[0019] Working principle: The metal workpiece to be ground is placed on the tray 30 of the clamping device 3. The reinforcing ribs 31 at the bottom of the tray 30 enhance structural stability and prevent deformation of the workpiece during placement. After the hydraulic cylinder 32 is activated, its piston rod drives the rotating disk 33 to descend. When the protective pad 34 at the bottom of the rotating disk 33 contacts the top surface of the workpiece, the piston rod applies continuous pressure, clamping the workpiece through the cooperation between the rotating disk 33 and the tray 30. The protective pad 34 prevents hard contact damage to the workpiece surface. Subsequently, the drive motor 35 fixed to the frame 1 is started. Because its output shaft is fixedly connected to the rotating shaft of the tray 30, it drives the tray 30 and the workpiece to rotate synchronously, allowing the chamfered part of the workpiece to contact the grinding belt 41 of the sanding device 4 in sequence, facilitating grinding.

[0020] After the drive motor 45 of the sanding device 4 starts, it drives the rotating roller 40 to rotate. The grinding belt 41 on the outer wall of the rotating roller 40 moves synchronously, generating grinding power. The unfolding rod 42 on the outer wall of the rotating roller 40 can rotate around it, and by adjusting the angle, it forms a tension force on the grinding belt 41 to ensure that the grinding belt 41 does not slacken during movement and to ensure stable grinding pressure. The rotating roller 40 is slidably connected to the elongated through hole of the mounting plate 2 and can move back and forth along the through hole, thereby adjusting the relative position of the grinding belt 41 and the workpiece, so that the grinding belt 41 is aligned with the rounded chamfer of the workpiece.

[0021] One end of the spring telescopic rod 43 of the sanding device 4 is connected to the rotating roller 40, and the other end is fixed by the fixing block 44. When the surface of the workpiece is irregular, such as when the chamfer curvature fluctuates, the pressure generated by the contact between the grinding belt 41 and the workpiece will be fed back to the rotating roller 40, causing the spring telescopic rod 43 to undergo elastic deformation, which drives the rotating roller 40 to adjust its position adaptively, so that the grinding belt 41 always fits tightly against the rounded chamfer surface of the workpiece, avoiding insufficient or excessive grinding due to the irregularity of the workpiece.

[0022] During the overall operation, after the workpiece is placed on the pallet 30, the hydraulic cylinder 32 drives the rotating disk 33 to clamp the workpiece, the drive motor 35 drives the workpiece to rotate, and at the same time the transmission motor 45 drives the grinding belt 41 to rotate. The position of the rotating roller 40 is adjusted so that the grinding belt 41 contacts the chamfer of the workpiece. The unfolding rod 42 keeps the grinding belt 41 taut, and the spring telescopic rod 43 adapts to the irregular surface of the workpiece, finally completing the grinding of the rounded chamfer of the metal part.

[0023] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A sander for chamfering metal parts, comprising: A frame (1) is provided with a mounting plate (2) on one side, characterized in that a clamping device (3) is provided inside the frame (1) and a sanding device (4) is provided outside the mounting plate (2). The sanding device (4) includes a rotating roller (40), a sanding belt (41) is slidably connected to the outer wall of the rotating roller (40), and an unfolding rod (42) is symmetrically rotatably connected to the outer wall of the rotating roller (40).

2. A sander for chamfering metal parts according to claim 1, characterized in that: A spring telescopic rod (43) is rotatably connected to the outer wall of the end of the rotating roller (40) away from the unfolded end. A fixing block (44) is fixedly connected to the outer wall of the end of the spring telescopic rod (43) away from the rotating roller (40). A drive motor (45) is fixedly connected to the outer wall of the rotating roller (40).

3. A sander for chamfering metal parts according to claim 1, characterized in that: The outer wall of the mounting disk (2) is provided with an elongated through hole, and the outer wall of the rotating roller (40) is slidably connected to the inner wall of the through hole of the mounting disk (2).

4. A sander for chamfering metal parts according to claim 2, characterized in that: The outer wall of the drive motor (45) is fixedly connected to the outer wall of the mounting plate (2).

5. A sander for chamfering metal parts according to claim 1, characterized in that: The clamping device includes a tray (30), a reinforcing rib (31) is fixedly connected to the bottom outer wall of the tray (30), a hydraulic cylinder (32) is provided at the top of the tray (30), a rotating disk (33) is rotatably connected to the outer wall of the piston rod of the hydraulic cylinder (32), a protective gasket (34) is fixedly connected to the outer wall of the rotating disk (33), and a drive motor (35) is fixedly connected to the outer wall of the rotating shaft of the tray (30).

6. A sander for chamfering metal parts according to claim 5, characterized in that: The outer wall of the hydraulic cylinder (32) is fixedly connected to the outer wall of the frame (1), and the outer wall of the drive motor (35) is fixedly connected to the inner wall of the frame (1).

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