Grinding tool capable of conveniently adjusting grinding material

Abstract

The utility model discloses a grinding tool convenient to adjust grinding materials, which relates to the technical field of grinding tools and comprises a fixing frame, a first support and a second support are respectively connected inside the fixing frame, one side of the first support and one side of the second support are respectively connected with a rack, and one side of the first support is respectively connected with a first roller and a second roller. A gear is connected to the upper portion in the fixing frame. Through the arrangement of the first support, the second support, the first idler wheels, the second idler wheels, the rack and the gear, the gear rotates to be meshed with the rack so that the first support and the second support can be far away from each other or close to each other, and therefore the positions of the two first idler wheels and the two second idler wheels are adjusted. Then the two sides of the abrasive belt are bent through inclined surfaces on one sides of the two first rollers and the second rollers, so that the effect of changing the grinding width of the abrasive belt is achieved, and large-area grinding and small-area grinding are facilitated; and in addition, the structure is simple, and operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding tools, in particular to a grinding tool which is convenient for adjusting abrasives. Background Art

[0002] Abrasive tools refer to tools used for polishing, grinding, and other functions. They are mainly made by bonding abrasives together with adhesives in the shape of rods, cylinders, sheets, discs, belts, etc. The corresponding ones are common grinding rods, grinding cylinders, sandpaper, grinding discs, sanding belts, etc.

[0003] During the use of existing sanding belt molds, the sanding belts are replaced according to workpieces of different sizes. When grinding large-sized workpieces, wide sanding belts are usually used to facilitate large-surface grinding. When grinding small-sized workpieces, narrow sanding belts are usually used to facilitate fine grinding of some grooves and details. Therefore, the staff may need to replace sanding belts of different narrow widths when grinding workpieces of different sizes. The disassembly and assembly of the sanding belt requires first removing the tensioning wheel, then removing the sanding belt from multiple rollers, and then placing the prepared sanding belts on multiple rollers and installing them into the tensioning wheel. After the sanding belt is installed, the tensioning wheel needs to be adjusted to ensure the tension of the sanding belt, and then the bolts are tightened to limit the tensioning wheel. In summary, it can be seen that the operation of replacing sanding belts of different widths is cumbersome, thus affecting the processing efficiency. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a grinding tool that is easy to adjust the abrasive to solve the technical problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grinding tool that is easy to adjust the abrasive, including a fixed frame, wherein the first bracket and the second bracket are respectively connected inside the fixed frame, and the first bracket and the second bracket are both connected to a rack on one side, the first bracket is respectively connected to a first roller and a second roller on one side, and a gear is connected to the upper part of the fixed frame.

[0006] By adopting the above technical solution, the gear rotates and engages with the rack to make the first bracket and the second bracket move away from or closer to each other, thereby adjusting the positions of the two first rollers and the two second rollers, and then the two sides of the sanding belt are bent through the inclined surfaces on one side of the two first rollers and the second rollers to achieve the effect of changing the grinding width of the sanding belt, thereby facilitating large area grinding and small area grinding.

[0007] Furthermore, a servo motor is installed on the top of the fixing frame, and the gear is connected to the output end of the servo motor.

[0008] By adopting the above technical solution, after the servo motor is started, the output end drives the gear to rotate, and the gear rotates and engages with the rack, so as to adjust the positions of the first bracket and the second bracket and thus adjust the positions of the first roller and the second roller.

[0009] Furthermore, a sliding groove is provided on the inner wall of the fixing frame, and the first bracket and the second bracket are both slidably connected to the fixing frame via the sliding groove.

[0010] By adopting the above technical solution, the gear rotates and meshes with the rack for transmission, so that the first bracket and the second bracket move away from or closer to each other, and at the same time, the displacement of the first bracket and the second bracket is guided by the slide groove.

[0011] Furthermore, the second bracket, the first roller, the second roller, the slide groove and the gear are each provided with two, and the rack is provided with four.

[0012] By adopting the above technical solution, the two sides of the abrasive belt are bent by the inclined surfaces on one side of the two first rollers and the second roller to achieve the effect of changing the grinding width of the abrasive belt, thereby facilitating large area grinding and small area grinding.

[0013] Furthermore, the four racks are respectively meshed with the two gears, and the four racks are respectively fixedly connected to the first bracket and the two second brackets.

[0014] By adopting the above technical solution, after the servo motor is started, the output end drives the gear to rotate, and the rotating gear meshes with the rack to make the first bracket and the second bracket move away from or approach each other.

[0015] Furthermore, the two first rollers are respectively connected to a first bracket and a second bracket, and the two second rollers are respectively connected to the first bracket and another second bracket.

[0016] By adopting the above technical solution, the gear rotates and meshes with the rack to make the first bracket and the second bracket move away from or closer to each other, thereby adjusting the positions of the two first rollers and the two second rollers.

[0017] Furthermore, an auxiliary wheel is connected to the back of the fixing frame, and an abrasive belt is connected between the auxiliary wheel and the first roller and the second roller.

[0018] By adopting the above technical solution and arranging the auxiliary wheel, there is a transition space when the abrasive belt enters between the first roller and the second roller, so as to facilitate bending of the abrasive belt.

[0019] In summary, the utility model mainly has the following beneficial effects:

[0020] The utility model arranges the first bracket, the second bracket, the first roller, the second roller, the rack and the gear. The gear rotates and meshes with the rack to make the first bracket and the second bracket move away from or approach each other, thereby adjusting the positions of the two first rollers and the two second rollers. Then, the two sides of the sanding belt are bent through the inclined surfaces on one side of the two first rollers and the second rollers to achieve the effect of changing the grinding width of the sanding belt, thereby facilitating large-area grinding and small-area grinding. There is no need to disassemble the sanding belt for replacement, and the structure is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a bottom view of the structure of the fixing frame of the utility model;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixing frame of the utility model;

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the sanding belt of the utility model.

[0025] In the figure: 1. fixed frame; 2. servo motor; 3. first bracket; 4. second bracket; 5. first roller; 6. second roller; 7. auxiliary wheel; 8. slide groove; 9. rack; 10. gear; 11. sanding belt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0027] The following describes an embodiment of the utility model based on its overall structure.

[0028] A grinding tool that is easy to adjust the abrasive, such as Figure 1-Figure 4As shown, it includes a fixing frame 1, a first bracket 3 is connected to one side of the fixing frame 1, two second brackets 4 are connected to the other side of the fixing frame 1, two slide grooves 8 are provided on the inner wall of the fixing frame 1, the first bracket 3 and the second bracket 4 are both slidably connected to the fixing frame 1 through the slide grooves 8, the first bracket 3 and the second bracket 4 are moved away from or approached to each other, and the displacement of the first bracket 3 and the second bracket 4 is guided by the slide grooves 8; four racks 9 are connected to one side of the first bracket 3 and the two second brackets 4, gears 10 are connected to the upper and lower parts of the fixing frame 1, and the top of the fixing frame 1 A servo motor 2 is installed, and a gear 10 is connected to the output end of the servo motor 2. After the servo motor 2 is started, the output end drives the gear 10 to rotate, and after the gear 10 rotates, it meshes with the rack 9 for transmission, so that the first bracket 3 and the second bracket 4 are displaced; one side of the first bracket 3 is connected to the first roller 5 and the second roller 6, and one side of the two second brackets 4 is respectively connected to the first roller 5 and the second roller 6, and the two first rollers 5 and the second rollers 6 are arranged in a mirror image, and the two sides of the sanding belt 11 are bent by the inclined surfaces on one side of the two first rollers 5 and the second rollers 6, so as to achieve the effect of changing the grinding width of the sanding belt 11.

[0029] See also Figure 1-Figure 4 In the above embodiment, an auxiliary wheel 7 is connected to the back of the fixing frame 1, and an abrasive belt 11 is connected between the auxiliary wheel 7 and the first roller 5 and the second roller 6, so that the workpiece is polished by rotating the abrasive belt 11.

[0030] See also Figure 1-Figure 4 The four racks 9 are respectively meshed with the two gears 10, and the four racks 9 are fixedly connected to the first bracket 3 and the two second brackets 4 by welding. After the gears 10 rotate, they mesh with the racks 9 for transmission, so that the first bracket 3 and the second bracket 4 move away from or approach each other; one side of the first roller 5 is inclined outward, and one side of the second roller 6 is inclined toward the center of the circle, and the two sides of the sanding belt 11 are bent by the inclined surfaces on one side of the two first rollers 5 and the second rollers 6.

[0031] The implementation principle of this embodiment is as follows: first, after the servo motor 2 is started, the output end drives the gear 10 to rotate, and after the gear 10 rotates, it meshes with the rack 9 for transmission, so that the first bracket 3 and the second bracket 4 move away from or closer to each other, and at the same time, the displacement of the first bracket 3 and the second bracket 4 is guided by the slide groove 8, so as to adjust the positions of the two first rollers 5 and the two second rollers 6, and then the two sides of the sanding belt 11 are bent through the inclined surfaces on one side of the two first rollers 5 and the second rollers 6, so as to achieve the effect of changing the grinding width of the sanding belt 11, thereby facilitating large area grinding and small area grinding.

[0032] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A grinding tool for facilitating the adjustment of abrasive materials, comprising a fixing frame (1), characterized in that: The fixing frame (1) is internally connected to a first bracket (3) and a second bracket (4), and one side of each of the first bracket (3) and the second bracket (4) is connected to a rack (9), one side of the first bracket (3) is connected to a first roller (5) and a second roller (6), and the upper part of the fixing frame (1) is internally connected to a gear (10).

2. The grinding tool for facilitating adjustment of abrasives according to claim 1, characterized in that: A servo motor (2) is installed on the top of the fixing frame (1), and the gear (10) is connected to the output end of the servo motor (2).

3. The abrasive tool for easy adjustment of abrasives according to claim 1, characterized in that: The inner wall of the fixed frame (1) is provided with a sliding groove (8), and the first bracket (3) and the second bracket (4) are both slidably connected to the fixed frame (1) via the sliding groove (8).

4. The abrasive tool for easy adjustment of abrasives according to claim 3, characterized in that: The second bracket (4), the first roller (5), the second roller (6), the slide groove (8) and the gear (10) are each provided with two, and the rack (9) is provided with four.

5. The grinding tool for facilitating adjustment of abrasives according to claim 4, characterized in that: The four racks (9) are respectively meshed with the two gears (10), and the four racks (9) are respectively fixedly connected to the first bracket (3) and the two second brackets (4).

6. The grinding tool for facilitating adjustment of abrasives according to claim 4, characterized in that: The two first rollers (5) are respectively connected to a first bracket (3) and a second bracket (4), and the two second rollers (6) are respectively connected to the first bracket (3) and another second bracket (4).

7. The abrasive tool for facilitating adjustment of abrasives according to claim 1, characterized in that: The back of the fixed frame (1) is connected to an auxiliary wheel (7), and an abrasive belt (11) is connected between the auxiliary wheel (7) and the first roller (5) and the second roller (6).

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