Grinding device facilitating chip removal

Abstract

The utility model relates to a grinding device convenient for chip removal, which comprises a main body, and a mounting part is arranged on the vertical lower end surface of the main body; the grinding grooves are formed in the vertical upper end face of the main body, and at least one grinding groove is formed in the main body in a spiral line mode; and the heat dissipation groove is formed in the main body and is communicated with the outside through the side surface of the main body. The plurality of grinding grooves are arranged in a manner of dividing the vertical upper end surface of the main body into a plurality of fan-shaped areas with the same size, and the heat dissipation grooves are arranged in a manner of penetrating through the plurality of fan-shaped areas in the main body. A plurality of grinding grooves are designed, the section shape, the arrangement mode and the size of the grinding grooves are accurately designed, and under the condition that the machining cost is reduced, the surface structure of the grinding disc is effectively improved, so that the machining performance and quality are improved. The grinding grooves arranged in this way can be equidistant spiral lines. Therefore, the grinding fluid has the advantage of flowing outwards at a constant speed when flowing on the surface of the main body.

Description

Technical Field

[0001] This utility model relates to the field of machining and grinding, and in particular to a grinding device that facilitates chip removal. Background Technology

[0002] Grinding discs are commonly used grinding tools in industrial manufacturing. During the grinding process, the grinding disc and workpiece mutually adjust each other, and the geometric accuracy of the grinding disc is "transferred" to the workpiece to a certain extent. Therefore, the machined surface of the grinding disc must have high geometric accuracy to achieve finishing through the relative motion of the grinding disc and workpiece under certain pressure. To obtain a good grinding surface, grooves are sometimes cut into the grinding disc surface. The groove shapes include radial, grid, concentric circles, and spirals. During the grinding process, abrasive particles are applied to or embedded in the surface of the grinding disc. Through the relative motion between the grinding disc and the workpiece, the abrasive particles grind and polish the workpiece surface. However, existing grinding discs have some problems with chip removal. During the grinding process, the generated chips easily accumulate on the surface of the grinding disc. This not only affects the grinding effect and causes secondary damage to the product, but may also increase the friction between the grinding disc and the workpiece, accelerating the wear of the grinding disc and reducing its service life.

[0003] Chinese patent document CN119282915A discloses a grinding pad, grinding equipment, and grinding method. The grinding pad has a grinding surface with a spiral-shaped first liquid guiding groove on the grinding surface, which is coaxially arranged with the grinding pad. The grinding pad is used in the grinding equipment to grind a target object. During grinding, grinding fluid is supplied to the grinding surface, and the grinding pad is controlled to rotate. From the same viewing angle, the rotation direction of the grinding pad is opposite to the outward rotation direction of the first liquid guiding groove. As a result, the grinding fluid on the grinding pad moves spirally away from the axis of the grinding pad as the grinding pad rotates, and the direction of the grinding fluid movement is opposite to the rotation direction of the grinding pad. This makes the direction of the grinding fluid movement adapt to the extension direction of the first liquid guiding groove, thereby increasing the flow rate of the grinding fluid in the first liquid guiding groove, and thus allowing the grinding fluid to be quickly discharged from the grinding pad, improving the grinding quality and grinding efficiency. However, this patent does not consider the influence of the cross-sectional shape of the groove on the flow of the grinding fluid, and does not provide a corresponding heat dissipation structure, which may lead to overheating of the grinding disc under prolonged use.

[0004] Furthermore, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the applicant studied a large number of documents and patents when making this utility model, but due to space limitations, not all details and contents were listed in detail. However, this does not mean that this utility model does not have the features of these prior art. On the contrary, this utility model has all the features of the prior art, and the applicant reserves the right to add relevant prior art to the background art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a grinding device that facilitates chip removal, comprising: a main body with a mounting portion on its vertically downward end face; grinding grooves disposed on the vertically upward end face of the main body, at least one grinding groove being formed on the main body in a spiral pattern; and a heat dissipation groove disposed inside the main body and communicating with the outside through the side of the main body. The grinding grooves are arranged to divide the vertically upward end face of the main body into several fan-shaped areas of equal size, and the heat dissipation groove is arranged to penetrate the several fan-shaped areas inside the main body.

[0006] According to a preferred embodiment, the grinding groove is configured as an asymmetrical groove, and the vertical cross-section of the grinding groove is triangular. The angle between the non-horizontal side of the triangle and the vertical line is defined as a first angle. The angle between the other non-horizontal side of the triangle and the vertical line is defined as a second angle.

[0007] According to a preferred embodiment, the first angle and the second angle are not equal. The sum of the first angle and the second angle is 90°.

[0008] According to a preferred embodiment, the triangle of the vertical cross-section of the grinding groove is offset radially outward from the center of the main body. A first angle is greater than a second angle. The difference between the first angle and the second angle is within a first range.

[0009] According to a preferred embodiment, the width-to-depth ratio of the triangle in the vertical cross-section of the grinding groove is 2:1.

[0010] According to a preferred embodiment, the pitch between adjacent threads in the spiral pattern of the grinding groove is equal. A plurality of grinding grooves extend radially along the main body in an arc-like manner, dividing the vertical upper surface of the main body into a plurality of sector-shaped areas. The radius of the arc of the plurality of grinding grooves extending in an arc is the same as the radius of the main body.

[0011] According to a preferred embodiment, the arc-shaped grinding grooves communicate with the helical grinding grooves. The arc-shaped grinding grooves communicate with at least the same thread or adjacent threads of the helical grinding grooves.

[0012] According to a preferred embodiment, a mounting hole penetrating the main body is provided at the vertical center of the main body. A mounting part is provided at the vertical lower end of the main body with the mounting hole as its axis, and is provided with bolt holes for installation, with a plurality of bolt holes distributed circumferentially around the center of the mounting hole.

[0013] According to a preferred embodiment, a plurality of heat dissipation grooves are symmetrically arranged inside the main body with the center of the main body as the center of symmetry, and the plurality of heat dissipation grooves are connected to the assembly holes.

[0014] According to a preferred embodiment, a plurality of heat dissipation grooves extend radially along the body. Attached Figure Description

[0015] Figure 1 This is a simplified structural cross-sectional view of a preferred embodiment of the grinding device for easy chip removal provided by this utility model;

[0016] Figure 2 This is a simplified top view of a preferred embodiment of the grinding device for easy chip removal provided by this utility model;

[0017] Figure 3 This is a simplified structural cross-sectional enlarged view of a preferred embodiment of the present invention from the first and second angles.

[0018] List of reference numerals

[0019] 1: Main body; 2: Grinding groove; 3: Heat dissipation groove; 4: First angle; 5: Second angle; 6: Assembly hole; 7: Mounting part; 8: Bolt hole. Detailed Implementation

[0020] The following is a detailed explanation with reference to the accompanying drawings.

[0021] Example 1

[0022] This utility model provides a grinding device that facilitates chip removal, such as... Figure 1 As shown, the device includes a main body 1 with a mounting portion 7 on its vertically downward end face; grinding grooves 2, located on the vertically upward end face of the main body 1, at least one of which is formed in a spiral pattern on the main body 1; and a heat dissipation groove 3, located inside the main body 1 and connected to the outside through the side of the main body 1. The grinding grooves 2 are arranged to divide the vertically upward end face of the main body 1 into several fan-shaped areas of equal size, and the heat dissipation groove 3 is arranged to penetrate several fan-shaped areas inside the main body 1. To address the problem of uneven surfaces after cutting the workpiece, this invention aims to provide better surface quality and precision during the workpiece grinding process, especially in terms of the design of the grinding disc surface structure. In the prior art, grinding fluid is usually added during the grinding process, and the flow of the grinding fluid is called open channel flow. To obtain better grinding fluid flow and chip removal effect, this invention designs several grinding grooves 2, accurately designing the cross-sectional shape, arrangement, and size of the grinding grooves 2. This effectively improves the grinding disc surface structure to enhance processing performance and quality while reducing processing costs. Preferably, the spiral pattern can be an Archimedean spiral pattern. Preferably, the grinding grooves 2 are arranged in an Archimedean spiral pattern, and a plurality of radial grinding grooves 2 extending radially along the main body 1 are combined to form the surface structure of the main body 1. Because of the characteristic of the Archimedean spiral pattern, it expands outward at equal intervals within each rotation cycle, thus the grinding grooves 2 can also be equidistant spirals. Therefore, the grinding fluid has the advantage of flowing outward at a uniform speed when flowing on the surface of the main body 1.

[0023] According to a preferred embodiment, the pitch between adjacent threads in the spiral pattern of the grinding groove 2 is equal. Preferably, the diameter of the body 1 is set to 610mm ± 0.5mm. Given the size of the body 1 in this invention, the spiral grinding groove 2 preferably has 8 turns on the body 1. The pitch is preferably 33.75mm. Preferably, the spiral grinding groove 2 extends from the center of the body 1 to the outer edge of the body 1 with a diameter of 60mm. Therefore, the spiral linear grinding groove 2 designed in this invention can effectively push the grinding residue out of the body 1, thereby reducing the number of cleaning operations and improving processing efficiency.

[0024] Preferably, a plurality of grinding grooves 2 extend radially along the main body 1 in an arc-like manner, dividing the vertical upper surface of the main body 1 into a plurality of sector-shaped areas. The radius of the arc of the plurality of grinding grooves 2 is the same as the radius of the main body 1. Preferably, the number of radial grinding grooves 2 is set to 6. Since the radius of the arc of the radial grinding groove 2 is the same as the radius of the main body 1, the arc length of the radial grinding groove 2 is thus designed to be constant, thereby ensuring that no large amount of waste is generated when the grinding fluid flows from the center of the main body 1 to the outer edge of the main body 1, and ensuring that the debris flows out from the grinding groove 2.

[0025] According to a preferred embodiment, a plurality of arc-shaped grinding grooves 2 are connected to a spiral-patterned grinding groove 2. The arc-shaped grinding grooves 2 are at least connected to the same thread or adjacent threads of the spiral-patterned grinding groove 2. The uniform distribution of the grinding grooves 2 ensures uniform stress distribution, thereby timely removing debris from the workpiece and preventing damage to the workpiece surface. Grinding slag falling during the grinding process enters the spiral-shaped grinding groove 2 and gradually moves towards the outer circumference of the main body 1 through centrifugal force generated by rotation and the rotation direction of the grinding groove 2, until it is discharged outside the main body 1. Compared to a conventional annular water tank, the cleaning frequency has been reduced from once every 20 days to once every 45 days. Due to the unique design of the spiral-shaped grinding groove 2, grinding slag can be efficiently discharged, reducing residue on the surface of the main body 1, thereby reducing the difficulty and frequency of cleaning.

[0026] According to a preferred embodiment, such as Figure 3As shown, the grinding groove 2 is configured as an asymmetrical groove, and its vertical cross-section is triangular. The angle between the non-horizontal side of the triangle and the vertical line is set as a first angle 4. The angle between the other non-horizontal side of the triangle and the vertical line is set as a second angle 5. Preferably, the first angle 4 and the second angle 5 are not equal. The sum of the first angle 4 and the second angle 5 is 90°. The difference between the first angle 4 and the second angle 5 can improve the geometric accuracy and grinding efficiency of the workpiece. By improving the groove shape of the grinding groove 2, not only is the flow curve of the grinding fluid optimized, but the grinding quality can also be improved. This invention reduces direct damage to the workpiece by blunting the edge of the grinding groove 2, and optimizes the angle of the bottom of the grinding groove 2 to allow debris to be discharged quickly, avoiding damage to the workpiece by debris.

[0027] Preferably, the triangular cross-section of the grinding groove 2 is radially offset outward from the center of the main body 1. The first angle 4 is greater than the second angle 5. The difference between the first angle 4 and the second angle 5 is within a first range. Preferably, the first range is set to 10°-15°. Because the first angle 4 is greater than the second angle 5, the grinding grooves 2 are all offset outward, causing debris and / or grinding fluid to move towards the outer edge under centrifugal force. The unique triangular cross-section grinding groove 2 design on the surface of the main body 1 of this invention not only optimizes the chip removal path and improves chip removal efficiency, but also significantly improves grinding efficiency and grinding quality by increasing the grinding amount. At the same time, this design simplifies the maintenance process, reduces the difficulty and frequency of cleaning, and further enhances the durability and maintainability of the equipment.

[0028] According to a preferred embodiment, the width-to-depth ratio of the triangle in the vertical cross-section of the grinding groove 2 is 2:1. This width-to-depth ratio design is calculated based on uniform flow in an open channel. With this ratio design, the grinding groove 2, whose width is greater than its depth, ensures uniform processing of the workpiece and guarantees effective removal of processing debris.

[0029] In this invention, during the grinding process, the workpiece directly contacts the surface of the main body 1 and the grinding tank 2 for planar grinding. The main body 1 rotates counterclockwise, while the grinding tank 2 rotates clockwise, opposite to the rotation direction of the main body 1. As a result, the main body 1 generates centrifugal force during rotation. After the workpiece contacts and grinds with the main body 1, the resulting grinding residue falls onto the surface of the main body 1. Through centrifugal force and the mutual grinding action of rotation, the residue slides into the grinding tank 2. Then, again, the centrifugal force generated by rotation and the direction of the grinding tank 2 cause the residue to gradually flow outwards, thereby reducing the cleaning frequency (from once every 20 days to once every 45 days).

[0030] The conventional annular groove grinds approximately 0.03 mm per minute, while the improved grinding groove 2 of this invention grinds 0.05 mm per minute, increasing the coarse grinding efficiency by approximately 40%. The surface roughness and flatness after grinding are also better than those achieved by the conventional annular groove.

[0031] The design of the grinding groove 2 in this invention not only improves grinding efficiency but also reduces wear on the grinding disc and extends the service life of the equipment by decreasing the number of cleaning operations and simplifying the maintenance process. At the same time, this design also reduces the potential risk of damage caused by frequent cleaning, enhancing the overall durability of the equipment.

[0032] According to a preferred embodiment, a mounting hole 6 penetrating the main body 1 is provided at its vertical center. A mounting part 7 is positioned at the lower vertical end of the main body 1 with the mounting hole 6 as its axis, and is provided with bolt holes 8 for installation. A plurality of bolt holes 8 are circumferentially distributed around the center of the mounting hole 6. More preferably, the mounting part 7 may also have holes (not shown in the figure) corresponding to the mounting hole 6 to facilitate the fixing of the machine tool spindle. Preferably, screws can be installed in the bolt holes 8 to mount the mounting part 7 onto the main body 1. The grinding device of this utility model, through standardized φ150 stop positioning and M10 screw fixing, makes disassembly and installation easier, further improving the maintainability of the equipment.

[0033] According to a preferred embodiment, a plurality of heat dissipation grooves 3 are symmetrically arranged inside the main body 1 with the center of the main body 1 as the center of symmetry, and the plurality of heat dissipation grooves 3 are connected to the mounting hole 6. Preferably, the plurality of heat dissipation grooves 3 extend radially along the main body 1. The heat dissipation grooves 3 can be straight channels along the radial direction of the main body 1. The heat dissipation grooves 3 are directly connected to the outside, which facilitates cooling after prolonged grinding and heating on the surface of the main body 1. Preferably, the mounting hole 6 can be connected to the spindle of a machine tool to drive the main body 1 to rotate. More preferably, the mounting hole 6 can also be connected to an air compressor to cool the heat dissipation grooves 3 and the grinding grooves 2 by supplying compressed air to the mounting hole 6.

[0034] Throughout the text, the features indicated by “preferred” are only optional and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete the relevant preferred features at any time.

[0035] It should be noted that the specific embodiments described above are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this utility model, and these solutions all fall within the scope of this utility model and its protection. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and not intended to limit the scope of the claims. The protection scope of this utility model is defined by the claims and their equivalents.

Claims

1. A lapping apparatus facilitating chip evacuation, characterized by, include: The main body (1) has a mounting part (7) on its vertically downward end face. A grinding groove (2) is provided on the vertical upper end face of the main body (1), and at least one of the grinding grooves (2) is formed on the main body (1) in a spiral pattern. A heat dissipation groove (3) is disposed inside the main body (1) and communicates with the outside through the side of the main body (1); wherein, The grinding grooves (2) are arranged to divide the vertical upper surface of the main body (1) into several fan-shaped areas of the same size, and the heat dissipation grooves (3) are arranged to penetrate the several fan-shaped areas inside the main body (1).

2. The lapping apparatus of claim 1, wherein, The grinding groove (2) is configured as an asymmetrical groove, and the vertical cross-section of the grinding groove (2) is triangular, wherein, The angle between the non-horizontal side of the triangle and the vertical line is set as the first angle (4). The angle between the other non-horizontal side of the triangle and the vertical line is set as the second angle (5).

3. The lapping apparatus of claim 2, wherein, The first angle (4) and the second angle (5) are not equal, wherein, The sum of the first angle (4) and the second angle (5) is 90°.

4. The lapping apparatus of claim 3, wherein, The triangle in the vertical cross-section of the grinding groove (2) is offset radially outward from the center of the main body (1), wherein, The first angle (4) is greater than the second angle (5). The difference between the first angle (4) and the second angle (5) is within a first range.

5. The lapping apparatus of claim 4, wherein, The width-to-depth ratio of the triangle in the vertical cross section of the grinding groove (2) is 2:

1.

6. The lapping apparatus of claim 5, wherein, The pitch between adjacent threads in the spiral pattern of the grinding groove (2) is equal, wherein, The grinding grooves (2) extend radially along the main body (1) in an arc manner, dividing the vertical upper surface of the main body (1) into several fan-shaped areas. The arc radius of the several grinding grooves (2) is the same as the radius of the main body (1).

7. The lapping apparatus of claim 6, wherein, The several arc-shaped grinding grooves (2) are connected to the spiral-patterned grinding grooves (2), wherein, The arc-shaped grinding grooves (2) are at least connected to the same thread or adjacent thread of the spiral-patterned grinding grooves (2).

8. The lapping apparatus of claim 7, wherein, The main body (1) has a through-hole (6) at its vertical center. The mounting part (7) is arranged at the vertical lower end of the main body (1) with the assembly hole (6) as the axis, and is provided with bolt holes (8) for installation. A plurality of bolt holes (8) are distributed circumferentially with the assembly hole (6) as the center.

9. The lapping apparatus of claim 8, wherein, Several heat dissipation grooves (3) are symmetrically arranged inside the main body (1) with the center of the main body (1) as the center of symmetry, and several heat dissipation grooves (3) are connected to the assembly hole (6).

10. The lapping apparatus of claim 9, wherein, Several of the heat dissipation grooves (3) extend radially along the body (1).

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