A deformation-resistant glass drilling and chamfering grinding tool

Abstract

The present invention relates to a deformation-resistant glass drilling chamfering tool, comprising a base and a serrated ring for chamfering glass, the serrated ring comprising a plurality of chamfering teeth; the base is in the shape of a circular ring block, the plurality of chamfering teeth being densely arranged circumferentially on the end face of the base, the end face of the chamfering teeth away from the base being a working surface, and the gaps between adjacent chamfering teeth forming a water trough for passing water. The present invention forms a serrated ring by using a plurality of independent chamfering teeth, replacing the existing chamfering tool with an integral continuous grinding surface. The serrated ring of the present invention has an anti-deformation function when chamfering glass, solving the problem of deformation failure; the multiple water troughs formed between the multiple chamfering teeth convert the cooling of the chamfering tool from the original technology's main external cooling to a main internal cooling method, forming a multi-channel water supply method, which can achieve efficient processing.

Description

Technical Field

[0001] The invention relates to the technical field of chamfering grinding tools, in particular to a deformation-resistant glass drilling chamfering grinding tool. Background Art

[0002] The chamfering grinding tools used in conjunction with glass drill bits in the prior art are generally powder metallurgy diamond grinding tools made of homogeneous materials, and are used to chamfer the rear end of glass drilling. During the chamfering grinding tool processing, the axial processing volume is the largest at the small diameter and the smallest (approaching 0) at the large diameter. The axial height processed per unit circumference at the small diameter is the maximum, and the axial height processed per unit circumference at the large diameter is the minimum (approaching 0). The axial height processed per unit circumference at each point between the small diameter and the large diameter varies linearly. The axial processing volume of the chamfered part changes linearly from large to small along the large diameter. Since the grinding tool is a homogeneous powder metallurgy sintered body, it is obvious that the parts with large axial processing volume consume quickly, while the parts with small axial processing volume consume slowly, also in a linear relationship. Therefore, during the use of the chamfering grinding tool, the small diameter is very likely to have sharp corners that become flat, causing the edge of the processed inner chamfer to collapse, resulting in the deformation and failure of the chamfering grinding tool. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a deformation-resistant glass drilling and chamfering grinding tool in view of the deficiencies in the prior art.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: a deformation-resistant glass drilling and chamfering grinding tool, comprising a base and a serrated ring for glass chamfering, the serrated ring comprising a plurality of chamfering grinding teeth; the base is in the shape of a circular ring block, the plurality of chamfering grinding teeth are circumferentially arranged on the end face of the base, the end face of the chamfering grinding teeth away from the base is a working surface, and the gap between adjacent chamfering grinding teeth forms a water trough for passing water.

[0005] The beneficial effects of the present invention are as follows: a serrated ring is formed by a plurality of independent chamfering grinding teeth, which replaces the existing chamfering grinding tool with an integral continuous grinding surface. The serrated ring of the present invention has an anti-deformation function when chamfering glass, solving the problem of deformation failure; the multiple water grooves formed between the multiple chamfering grinding teeth convert the cooling of the chamfering grinding tool from the main external cooling of the original technology to the main internal cooling method, forming a multi-channel water supply method, which can achieve efficient processing.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the chamfered grinding teeth are wedge-shaped, each of the chamfered grinding teeth is close to the center of the base, and the vertical inner side walls of the chamfered grinding teeth face inward. Each of the chamfered grinding teeth surrounds the central axis of the base to form a closed serrated ring.

[0008] The beneficial effect of adopting the above further solution is that when the chamfering grinding teeth are arranged around the central axis of the base, a closed serrated ring can be formed to obtain an annular chamfered surface. The independent chamfering grinding teeth can be arranged into serrated rings of different specifications according to actual chamfering needs.

[0009] Furthermore, the working surface of each chamfered grinding tooth is inclined from the inside to the outside close to the outer side of the base, forming a ring-shaped inclined surface.

[0010] The beneficial effect of adopting the above further solution is that the annular inclined working surface formed by the working surfaces of each chamfered grinding tooth not only realizes the chamfering function, but also has the anti-deformation function.

[0011] Furthermore, the inner side wall of the chamfered grinding teeth is in an arc-shaped concave shape, and the inner side wall of each chamfered grinding tooth is circumferentially surrounded by a through hole. The formed through hole has the same diameter as the through hole at the center of the circular ring structure of the base and is aligned and connected to form a connecting hole for connecting the machine spindle connecting handle.

[0012] The beneficial effect of adopting the above further scheme is: the inner side wall of the chamfered grinding tooth is set to an arc-shaped concave surface, and the inner side wall of each chamfered grinding tooth is surrounded by a through hole that cooperates with the through hole of the base to form a connecting hole, which is connected to the machine spindle connecting handle through the connecting hole to realize the functions of drilling and chamfering.

[0013] Furthermore, the outer side wall of the chamfered grinding tooth opposite to the inner side wall is in an arc-shaped convex shape; the working surface of the chamfered grinding tooth is located at the circumferential arc length L at the minimum diameter of the actual chamfered surface. max Circumferential arc length L to the maximum diameter min The change in is linearly related to the change in the axial processing amount at different radial points of the actual chamfered surface, and the linear relationship is that the greater the processing amount, the longer the circumferential arc length of the corresponding working surface, and the smaller the processing amount, the shorter the circumferential arc length of the corresponding working surface.

[0014] The beneficial effect of adopting the above further solution is that the inner and outer walls of the chamfered grinding teeth are both arc-shaped and concave, so that the working surface at the opposite ends is arc-shaped, realizing the chamfering function, and adopting the linear relationship of the axial processing amount change at different radial points of the chamfered surface, that is, the circumferential arc length L of the working surface at the minimum diameter of the actual chamfered surface is max The circumferential arc length L of the working surface at the maximum diameter of the actual chamfered surface is the point where the axial machining amount is the largest. min It is the point where the axial processing amount is minimum, and is directly proportional to the arc length at both ends of the working surface on the chamfered grinding tooth, thereby achieving the anti-deformation function.

[0015] Furthermore, the ring width of the serrated ring is greater than the ring width of the actual chamfered surface, and the circumferential arc length L of the working surface corresponding to the larger portion of the serrated ring width is less than or equal to the circumferential arc length Lmin .

[0016] The beneficial effect of adopting the above further solution is that the ring width of the serrated ring is set slightly larger than the ring width of the actual chamfered surface, and the circumferential arc length L of the corresponding working surface of the part exceeding the actual chamfered surface ring width is less than or equal to the circumferential arc length L min , which can ensure that the chamfering process does not miss the edge.

[0017] In addition, the grinding surface of the chamfering grinding tool in the prior art is generally continuous as a whole or a small number of chip removal grooves are set on the grinding surface, and usually a small number of internal cooling water holes are superimposed. However, since the grinding surface is an inclined surface, the external cooling effect is extremely poor and chip removal is difficult, so the feed speed of the chamfering grinding tool is very low, making it difficult to achieve efficient processing.

[0018] Furthermore, each of the chamfered grinding teeth is provided with a chip groove, which starts from the inner wall of the chamfered grinding tooth and extends toward the inside of the chamfered grinding tooth in the axial and radial directions of the serrated ring respectively, and the chip groove opening located on the upper side in the radial direction of the serrated ring is connected to the working surface of the chamfered grinding tooth, and the chip groove opening located on the inner side in the axial direction of the serrated ring is connected to the inner wall of the chamfered grinding tooth.

[0019] The beneficial effects of adopting the above-mentioned further scheme are: chip grooves are opened on the chamfering grinding teeth. For a single chamfering grinding tooth, chips can be removed in both axial and radial directions, so as to facilitate the rapid discharge of powder chips with the minimum circumferential distance; for the serrated ring, the dense tooth layout constitutes a large number of chip grooves, so that the chips are mainly discharged in the circumferential direction, which greatly improves the chip removal speed. Due to the cooling effect and the significant increase in chip removal speed, the wear of the binder is greatly reduced, which greatly increases the life of the chamfering grinding tool and can also greatly improve the processing efficiency, and greatly reduce the cost of chamfering processing, thereby greatly improving the cost performance of the chamfering grinding tool.

[0020] Furthermore, the chamfered grinding teeth are wedge-shaped, each of the chamfered grinding teeth is close to the center of the base, and the vertical inner side walls of the chamfered grinding teeth face inward. Each of the chamfered grinding teeth surrounds the central axis of the base for less than one circle, forming an open serrated ring.

[0021] The beneficial effect of adopting the above further scheme is that when the chamfering grinding teeth are arranged less than one circle around the central axis of the base, an open serrated ring or a half-ring serrated ring can be formed to obtain a corresponding chamfered surface. The independent chamfering grinding teeth can be arranged into serrated rings of different specifications according to actual chamfering needs.

[0022] Furthermore, the working surface of each chamfered grinding tooth is inclined from the inside to the outside close to the outer side of the base, forming a semicircular inclined surface.

[0023] The beneficial effect of adopting the above further solution is that the chamfering grinding tool can be made into various structures such as closed loop, open loop, half ring combination, segmented ring combination, etc. according to needs, which not only realizes the chamfering function but also has the anti-deformation function effect.

[0024] Furthermore, the working surface is plated with diamond. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a chamfering grinding tool provided in an embodiment of the present invention;

[0026] Figure 2 A top view of a chamfering grinding tool provided in an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of a chamfering grinding tool provided by an embodiment of the present invention in operation;

[0028] Figure 4 The embodiment of the present invention provides Figure 3 Enlarged view of part A;

[0029] Figure 5 A schematic diagram of a serrated ring and an actual working surface provided by an embodiment of the present invention;

[0030] Figure 6 A schematic structural diagram of a chip removal groove provided in an embodiment of the present invention;

[0031] Figure 7 A top view of a chip removal groove provided in an embodiment of the present invention.

[0032] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0033] 1. Base, 2. Chamfered gear grinding, 3. Water trough, 4. Chip groove, 201. Working surface, 202. Inner wall, 5. Actual chamfered surface, 6. Machine spindle connecting handle. DETAILED DESCRIPTION

[0034] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0035] Example 1: Figure 1-2 As shown, a deformation-resistant glass drilling chamfering grinding tool includes a base 1 and a serrated ring for glass chamfering, wherein the serrated ring includes a plurality of chamfering grinding teeth 2; the base 1 is an annular block, and the plurality of chamfering grinding teeth 2 are circumferentially arranged on the end surface of the base 1, and the end surface of the chamfering grinding teeth 2 away from the base 1 is a working surface 201, and the gap between adjacent chamfering grinding teeth 2 forms a water trough 3 for passing water.

[0036] In the above embodiment, a serrated ring is formed by multiple independent chamfering grinding teeth, which replaces the existing chamfering grinding tool with an integral continuous grinding surface. The serrated ring of the present invention has an anti-deformation function when chamfering glass, which solves the problem of deformation failure; the multiple water grooves formed between the multiple chamfering grinding teeth convert the cooling of the chamfering grinding tool from the main external cooling of the original technology to the main internal cooling method, forming a multi-channel water supply method, which can achieve efficient processing.

[0037] On the basis of Example 1, Example 2:

[0038] like Figure 1-2 As shown, the chamfered grinding teeth 2 are wedge-shaped, each of the chamfered grinding teeth 2 is close to the center of the base 1, and the vertical inner wall 202 of the chamfered grinding teeth 2 faces inward. Each of the chamfered grinding teeth 2 surrounds the central axis of the base 1 to form a closed serrated ring.

[0039] In the above embodiment, when the chamfering grinding teeth 2 are arranged around the central axis of the base 1, a closed serrated ring can be formed to obtain an annular chamfering working surface; the independent chamfering grinding teeth 2 can be arranged into serrated rings of different specifications according to actual chamfering needs.

[0040] Based on Example 2, Example 3:

[0041] like Figure 1-2 As shown, the working surface 201 of each chamfered grinding tooth 2 is inclined from the inside to the outside close to the outer side of the base 1, forming a ring-shaped inclined surface.

[0042] Specifically, the working surface 201 is plated with diamond.

[0043] In the above embodiment, the annular inclined working surface formed by the working surfaces 201 of each chamfered grinding tooth 2 not only realizes the chamfering function but also has an anti-deformation effect.

[0044] On the basis of Example 3, Example 4:

[0045] like Figure 3 As shown, the inner side wall 202 of the chamfered grinding tooth 2 is in an arc-shaped concave shape, and the inner side wall 202 of each chamfered grinding tooth 2 is circumferentially surrounded by a through hole. The through hole has the same diameter as the through hole at the center of the circular ring structure of the base 1 and is aligned and connected to form a connecting hole for connecting the machine spindle connecting handle 6.

[0046] like Figure 3 As shown, the front end of the machine spindle connecting handle 6 is provided with a drill bit for drilling, and the front end of the machine spindle connecting handle 6 passes through the connecting hole. The drill bit is shown at e, and the drill bit cooperates with the chamfering grinding tooth 2 to perform glass drilling and chamfering.

[0047] In the above embodiment, the inner side wall 202 of the chamfered grinding tooth 2 is set to an arc-shaped concave surface, and the through hole surrounded by the inner side wall 202 of each chamfered grinding tooth 2 cooperates with the through hole of the base 1 to form a connecting hole, which is connected to the machine spindle connecting handle 6 to realize the functions of drilling and chamfering.

[0048] like Figure 3-4 As shown, the drill bit is shown at e, f is the cooling water inlet, and g is the cooling water channel formed by the water tank 3 and the through hole in the drill bit.

[0049] After connecting the machine spindle connecting handle 6, a multi-channel water supply mode and a two-way water supply mode can be realized. Among them, the two-way water supply mode is as follows: the cooling water to the chamfering grinding tool first passes through the drill hole, passes through the drill working end face, passes through the hole wall, and passes through the cooling water channel to reach the actual grinding surface of the chamfering grinding tool; secondly, it passes through the drill hole, passes through the through-holes in the drill inner wall, passes through the corresponding cooling water channels between some or all teeth, and then acts on the working surface of the chamfering grinding tool.

[0050] Next, let me explain the flow direction of cooling water in the water tank 3 during the chamfering process. Figure 3 As shown, g1 is the water inlet of the water trough 3, and g2 is the water outlet. Cooling water enters from the water inlet and flows down along the sidewall of the chamfered glass to the bottom. The centrifugal force generated by grinding then pushes the cooling water to the chamfered surface of the glass, that is, the cooling water flows from the water outlet to the chamfered surface of the glass. Multiple water troughs 3 transform the cooling of the chamfering grinding tool from the original technology's primary external cooling to a primary internal cooling method, forming a multi-channel water supply method, which can achieve efficient processing.

[0051] Based on Example 4, Example 5:

[0052] like Figure 1 As shown, the outer side wall of the chamfered grinding tooth 2 opposite to the inner side wall 202 is in an arc-shaped convex shape;

[0053] like Figure 3 As shown, the circumferential arc length L max As shown at a, the circumferential arc length L min As shown at b.

[0054] The circumferential arc length L of the working surface 201 of the chamfered grinding tooth 2 is located at the minimum diameter of the actual chamfered surface 5 max Circumferential arc length L to the maximum diameter min The change of is linearly related to the change of the axial processing amount at different radial points of the actual chamfered surface 5, and the linear relationship is that the greater the processing amount, the longer the circumferential arc length of the corresponding working surface 201, and the smaller the processing amount, the shorter the circumferential arc length of the corresponding working surface 201.

[0055] Among them, the circumferential arc length L minThe value should be close to 0 but must be able to fully meet the strength that can be sustained during grinding. Its value is determined through experiments based on the formula of the chamfering grinding tool, processing parameters and other factors.

[0056] like Figure 3 and 5 As shown, the actual chamfered surface 5 is the chamfered surface produced by the chamfering grinding tool on the glass.

[0057] In the above embodiment, the inner side wall 202 and the outer side wall of the chamfered grinding tooth 2 are both arc-shaped and concave, so that the working surface at the opposite ends is in an arc shape, realizing the chamfering function, and adopting the linear relationship of the axial processing amount change at different radial points of the chamfered surface, that is, the circumferential arc length L of the working surface at the minimum diameter of the actual chamfered surface 5 is max The circumferential arc length L of the working surface at the maximum diameter of the actual chamfered surface 5 is the point where the axial machining amount is the largest. min It is the point where the axial processing amount is minimum, and is directly proportional to the arc length at both ends of the working surface on the chamfered grinding tooth, thereby achieving the anti-deformation function.

[0058] On the basis of Example 5, Example 6:

[0059] The width of the serrated ring is greater than the width of the actual chamfered surface 5, and the circumferential arc length L of the working surface 201 corresponding to the serrated ring width that is greater than the actual chamfered surface 5 is less than or equal to the circumferential arc length L. min .

[0060] like Figure 5 As shown, the ring width, i.e., the diameter, of the serrated ring is D, and the ring width, i.e., the diameter, of the actual chamfered surface 5 is D1, where D>D1.

[0061] like Figure 3 As shown, the circumferential arc length L is shown at c.

[0062] It should be understood that the circumferential arc length L refers to each circumferential arc length corresponding to a portion of the sawtooth ring width within the range.

[0063] In the above embodiment, the width of the serrated ring is slightly larger than the actual width of the chamfered surface 5, and the circumferential arc length L of the corresponding working surface of the portion exceeding the actual width of the chamfered surface 5 is less than or equal to the circumferential arc length L. min , which can ensure that the chamfering process does not miss the edge.

[0064] In addition, in the prior art, the grinding surface of the chamfering grinding tool is generally continuous as a whole or a small number of chip removal grooves are set on the grinding surface, and usually a small number of internal cooling water holes are superimposed. However, since the grinding surface is an inclined surface, the external cooling effect is extremely poor and chip removal is difficult. Therefore, the feed speed of the chamfering grinding tool is very low, making it difficult to achieve efficient processing. In addition, the friction between the powder and the binder is large, which reduces the life of the chamfering grinding tool.

[0065] In order to solve the above-mentioned problem of chip removal difficulty, the present invention provides Example 7.

[0066] On the basis of Examples 1 to 6, Example 7:

[0067] like Figure 6-7 As shown, each of the chamfered grinding teeth 2 is provided with a chip groove 4, which starts from the inner side wall 202 of the chamfered grinding tooth 2 and extends toward the inside of the chamfered grinding tooth 2 in the axial and radial directions of the serrated ring, respectively. The notch of the chip groove 4 located on the upper side in the radial direction of the serrated ring is connected to the working surface 201 of the chamfered grinding tooth 2, and the notch of the chip groove 4 located on the inner side in the axial direction of the serrated ring is connected to the inner side wall 202 of the chamfered grinding tooth 2.

[0068] In the above embodiment, a chip groove 4 is provided on the chamfering grinding tooth. For a single chamfering grinding tooth, chips can be removed in both axial and radial directions, so as to facilitate the rapid discharge of chips in the minimum circumferential distance. For the serrated ring, the dense tooth layout constitutes a large number of chip grooves 4, so that the chips are mainly discharged in the circumferential direction, which greatly improves the chip removal speed. Due to the cooling effect and the significant increase in the chip removal speed, the wear of the binder is greatly reduced, which greatly increases the life of the chamfering grinding tool and can also greatly improve the processing efficiency, and greatly reduce the cost of chamfering processing, thereby greatly improving the cost performance of the chamfering grinding tool.

[0069] According to needs, the chamfering grinding tool can be made into various structures such as closed loop, open loop, half ring combination, segmented ring combination, etc., to meet the needs of clamping type, post-type and other ways of matching with the drill bit. The non-grinding layer part of the grinding tool (including non-working layer and matrix) is assembled and used with the drill bit using existing technology.

[0070] For example, an open-loop serrated ring: the chamfered grinding teeth 2 are wedge-shaped, each of the chamfered grinding teeth 2 is close to the center of the base 1, and the vertical inner wall 202 of the chamfered grinding teeth 2 faces inward, and each of the chamfered grinding teeth 2 surrounds the central axis of the base 1 for less than one circle, forming an open-loop serrated ring.

[0071] It should be understood that each chamfered grinding tooth 2 can be understood as less than 360° around the central axis of the base 1. For example, it can be configured to surround the central axis of the base 1 by 180°, forming a semi-circular sawtooth ring. For example, it can also be configured to surround the central axis of the base 1 by 270°, forming an open-loop sawtooth ring. For example, it can also be configured to be two-segmented, i.e., two segments surround the central axis of the base 1 by 90°, forming a segmented ring combination.

[0072] The production of the dense tooth profile and water passage in the present invention can be achieved through a variety of process means, such as: after the entire ring is produced, subsequent processing by laser equipment to form the water passage; or after the entire ring is produced, subsequent processing by electric spark equipment to form the water passage; or pre-processing the tooth profile by a mold and then subsequently processing the water passage; or a combination of the above processes, etc.

[0073] When the chamfering grinding teeth 2 are arranged around the central axis of the base 1 for less than a circle, an open serrated ring or a half-ring serrated ring can be formed to obtain a corresponding chamfered surface. The independent chamfering grinding teeth 2 can be arranged into serrated rings of different specifications according to actual chamfering needs.

[0074] Specifically, the working surface 201 of each chamfered grinding tooth 2 is inclined from the inside to the outside close to the outer side of the base 1, forming a semicircular inclined surface.

[0075] Compared with existing products, the present invention has the following advantages:

[0076] The linear relationship between the change in axial processing volume at different radial points on the chamfered surface is adopted, and the arc length of the tooth is proportionally corresponding to each other, thereby achieving the anti-deformation function. The cooling of the chamfering ring is converted from the main external cooling of the original technology to the main internal cooling method, with multiple water channels and two-way water supply. Among them, the two-way water supply refers to one from the drill port and the other from the through hole in the drill hole wall. The cooling effect of the grinding surface is greatly improved by the multiple water channels and two-way water supply. The dense tooth layout forms a large number of chip grooves, so that the chips are mainly discharged in the circumferential direction, which greatly improves the chip removal speed. Due to the significant improvement in cooling effect and chip removal speed, the side effects of the binder are greatly reduced, which greatly increases the life of the chamfering tool while also greatly improving the processing efficiency, greatly reducing the cost of chamfering processing, and greatly improving the cost performance of the chamfering tool.

[0077] The chamfering grinding tool adopts laser processing technology, which makes the tooth shape processing and the opening of the water channel simple, easy, efficient and low-cost.

[0078] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A deformation-resistant glass drilling and chamfering grinding tool, characterized in that: The invention comprises a base (1) and a serrated ring for chamfering glass, wherein the serrated ring comprises a plurality of chamfering grinding teeth (2); the base (1) is in the shape of a circular ring block, the plurality of chamfering grinding teeth (2) are circumferentially arranged on the end surface of the base (1), the end surface of the chamfering grinding teeth (2) away from the base (1) is a working surface (201), and the gaps between adjacent chamfering grinding teeth (2) form a water trough (3) for passing water; The chamfered grinding teeth (2) are wedge-shaped, each of the chamfered grinding teeth (2) is close to the center of the base (1), and the vertical inner side wall (202) of the chamfered grinding teeth (2) faces inward, and each of the chamfered grinding teeth (2) surrounds the central axis of the base (1) to form a closed serrated ring; The working surface (201) of each chamfered grinding tooth (2) is inclined from the inside to the outside in a direction close to the outside of the base (1), forming an annular inclined surface; The outer side wall of the chamfered grinding tooth (2) opposite to the inner side wall (202) is in an arc-shaped convex surface; the circumferential arc length L of the working surface (201) of the chamfered grinding tooth (2) at the minimum diameter of the actual chamfered surface (5) is max Circumferential arc length L to the maximum diameter min The change of is linearly related to the change of the axial processing amount at different radial points of the actual chamfered surface (5), wherein the larger the processing amount, the longer the circumferential arc length of the corresponding working surface (201), and the smaller the processing amount, the shorter the circumferential arc length of the corresponding working surface (201); A chip groove (4) is provided on each of the chamfered grinding teeth (2), and the chip groove (4) extends from the inner side wall (202) of the chamfered grinding tooth (2) in the axial and radial directions of the serrated ring toward the inside of the chamfered grinding tooth (2), and the notch of the chip groove (4) located on the upper side in the radial direction of the serrated ring is connected to the working surface (201) of the chamfered grinding tooth (2), and the notch of the chip groove (4) located on the inner side in the axial direction of the serrated ring is connected to the inner side wall (202) of the chamfered grinding tooth (2).

2. The deformation-resistant glass drilling and chamfering grinding tool according to claim 1, characterized in that: The inner side wall (202) of the chamfered grinding teeth (2) is in an arc-shaped concave shape, and the inner side wall (202) of each chamfered grinding tooth (2) circumferentially forms a through hole, and the through hole has the same diameter as the through hole at the center of the circular ring structure of the base (1) and is aligned and connected to form a connection hole for connecting the machine spindle connection handle (6).

3. The deformation-resistant glass drilling and chamfering grinding tool according to claim 1, characterized in that: The ring width of the serrated ring is greater than the ring width of the actual chamfered surface (5), and the circumferential arc length L of the working surface (201) corresponding to the larger portion of the serrated ring width is less than or equal to the circumferential arc length L min .

4. The deformation-resistant glass drilling and chamfering grinding tool according to any one of claims 1 to 3, characterized in that: The working surface (201) is plated with diamond.

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