EP-4741130-A1 - SAW-TOOTHED ELECTROPLATED DIAMOND GRINDING TOOL

EP4741130A1EP 4741130 A1EP4741130 A1EP 4741130A1EP-4741130-A1

Abstract

The present invention relates to the technical field of diamond cutting abrasive tools, and in particular to a serrated electroplated diamond abrasive tool, comprising an abrasive tool body and a holding member; the abrasive tool body is mounted on the holding member; the abrasive tool body is formed by at least one serrated substrate; the serrated surface of the substrate comprises inclined surfaces; the inclined surfaces are plated with diamond layers; the diamond layers are single layers in the normal direction of the inclined surfaces; the areas, where diamond particles are to be plated, on the inclined surfaces are electroplated layers; the diamond particles in the diamond layers are encased and plated in the electroplated layers; a groove is formed between every two adjacent serrations on each substrate, and the plurality of grooves in each layer of substrate and the plurality of grooves in an adjacent layer of substrate are combined and communicated to form a tooth plate water channel. The present invention is advantageous to prefabricate abrasive tools, and meet different demands for abrasive tools by means of combination and assembly, the process of manufacturing abrasive tools by electroplating is simplified, and some of brazing process diamond abrasive tools and powder metallurgy process diamond abrasive tools are replaced.

Inventors

SONG, Jingxin
LIANG, Anning
LONG, Huiling
SONG, Youpeng

Assignees

GUILIN GRIND-ACADEMY MATERIAL TECHNOLOGY CO., LTD.
Guilin Champion Union Diamond Co., Ltd.

Dates

Publication Date: 20260513
Application Date: 20240816

Claims (10)

A serrated electroplated diamond abrasive tool, comprising: an abrasive tool body (1) and a holding member (2), wherein the abrasive tool body (1) is mounted on the holding member (2), the abrasive tool body (1) is composed of at least one serrated substrate (11), the serrated surface of the substrate (11) comprises an inclined surface (12), a diamond layer (13) is plated on the inclined surface (12), the diamond layer (13) is arranged in a single layer in the normal direction of the inclined surface (12), the area on the inclined surface (12) where diamond particles are to be plated is provided with an electroplated layer (121), the diamond particles in the diamond layer (13) are encased and plated in the electroplated layer (121), and the thickness of the electroplated layer (121) in the normal direction of the inclined surface (12) is greater than the particle size of the diamond particles; when the abrasive tool body (1) is formed by stacking a plurality of the substrates (11), a groove is formed between two adjacent serrations on the substrate (11), and a plurality of the grooves on each layer of the substrate (11) are combined and communicated with a plurality of the grooves on an adjacent layer of the substrate (11) to form a tooth plate water channel (14).
The serrated electroplated diamond abrasive tool according to claim 1, wherein on the inclined surface (12) of a single serration of the substrate (11), the difference in the wear direction of the abrasive tool during operation between any two points spaced by one time the particle size of the diamond particles in the rotation direction is greater than or equal to one quarter of the particle size of the diamond particles and less than or equal to one half of the particle size of the diamond particles.
The serrated electroplated diamond abrasive tool according to claim 1, wherein when the abrasive tool body (1) is a single substrate (11), the diamond particles are arranged in a single row, multiple rows, a staggered single row, or staggered multiple rows in the axial direction of the inclined surface (12), and the axial arrangement width of each row of the diamond particles in the axial direction of the inclined surface (12) is greater than one time the particle size of the diamond particles and less than two times the particle size of the diamond particles.
The serrated electroplated diamond abrasive tool according to claim 1, wherein when the abrasive tool body (1) is formed by stacking a plurality of the substrates (11), the diamond particles are arranged in a single row, multiple rows, a staggered single row, or staggered multiple rows on the inclined surface (12) in the stacking direction of the plurality of substrates (11), each row of the diamond particles is parallel to the rotation or movement trajectory of the diamond particles, and the arrangement width of each row of the diamond particles in the stacking direction of the plurality of substrates (11) is greater than one time the particle size of the diamond particles and less than two times the particle size of the diamond particles.
The serrated electroplated diamond abrasive tool according to claim 3 or 4, wherein when the diamond particles are arranged in multiple rows or staggered multiple rows on the inclined surface (12), an area between two adjacent rows of the diamond particles where no diamond particles are plated is a blank plated layer (122), and the width of the blank plated layer (122) is greater than zero and less than two times the particle size of the diamond particles.
The serrated electroplated diamond abrasive tool according to claim 1, wherein the abrasive tool body (1) is mounted on the outer circumferential surface or the end face of the holding member (2); when the abrasive tool body (1) is mounted on the outer circumferential surface of the holding member (2), the substrate (11) is an annular structure with the inclined surface (12) arranged on its outer circumferential surface; when the abrasive tool body (1) is mounted on the end face of the holding member (2), the substrate (11) is a sheet-like structure or an annular structure with the inclined surface (12) arranged on its top end.
The serrated electroplated diamond abrasive tool according to claim 6, wherein when the abrasive tool body (1) is formed by stacking a plurality of the substrates (11), the abrasive tool body (1) is mounted on the outer circumferential surface of the holding member (2), and the inclined surface (12) is arranged on the outer circumferential surface of the substrate (11), the plurality of substrates (11) are stacked up and down to form the abrasive tool body (1).
The serrated electroplated diamond abrasive tool according to claim 7, wherein the holding member (2) comprises a central column (21), a plurality of clamping blocks (22) and two cover plates (23), wherein the plurality of clamping blocks (22) are arranged around the periphery of the central column (21), the two cover plates (23) are respectively arranged at the top end and the bottom end of the central column (21) and the clamping blocks (22), the abrasive tool body (1) is arranged between the two cover plates (23), a plurality of anti-rotation clamping grooves (16) are arranged on the inner side of the substrate (11), the anti-rotation clamping grooves (16) are arc-shaped groove structures, the plurality of anti-rotation clamping grooves (16) are clamped with the ends of the plurality of clamping blocks (22) far away from the central column (21) in one-to-one correspondence, a spiral water channel (15) is formed between the anti-rotation clamping grooves (16) and the clamping blocks (22), and the spiral water channel (15) comprises a plurality of arc-shaped groove structures arranged in parallel up and down.
The serrated electroplated diamond abrasive tool according to claim 6, wherein when the abrasive tool body (1) is mounted on the end face of the holding member (2) and the substrate (11) is a sheet-like structure with the inclined surface (12) arranged on its top end, a plurality of the substrates (11) are stacked to form an abrasive tool unit, and a plurality of the abrasive tool units are arranged circumferentially on the end face of the holding member (2) to form the abrasive tool body (1).
The serrated electroplated diamond abrasive tool according to claim 6, wherein when the abrasive tool body (1) is mounted on the end face of the holding member (2) and the substrate (11) is an annular structure with the inclined surface (12) arranged on its top end, a plurality of the substrates (11) are stacked inside and outside to form the abrasive tool body (1).

Description

TECHNICAL FIELD The disclosure relates to the technical field of diamond cutting abrasive tools, and in particular to a serrated electroplated diamond abrasive tool. BACKGROUND Electroplated diamond abrasive tools are generally of a single-layer surface-mounted type (characterized by: all working diamonds in the diamond working layer are on the same rotation working surface and participate in the work together), i.e., the thickness of the electroplated metal layer is less than the particle size of the diamonds, and the diamonds present less than 1/2 of their particle size lying on the same rotation working surface. When the abrasive tool is initially used, due to the sharp corners of the diamond particles, the sharpness of the abrasive tool is extremely high. However, as the sharp corners of the diamond particles wear and become blunt, the contact surface area between the diamond particles and the workpiece increases quadratically. At this time, the force required for grinding and cutting the workpiece material will increase significantly; otherwise, the pressure required for cutting will decrease significantly, and the sharpness of the abrasive tool will decrease quadratically. However, increasing the force requires higher equipment power and the workpiece must have sufficient strength; otherwise, the abrasive tool will fail. Single-layer brazed diamond tools also have similar problems mentioned above, and the brazing process is cumbersome for complex shapes. The sharpness of powder metallurgy sintered diamond abrasive tools is difficult to exceed that of electroplated diamond abrasive tools. SUMMARY OF THE INVENTION The object of the present disclosure is to provide a serrated electroplated diamond abrasive tool to solve the above problems. The technical solution adopted by the present disclosure to solve the above technical problems is as follows: a serrated electroplated diamond abrasive tool, comprising: an abrasive tool body and a holding member, wherein the abrasive tool body is mounted on the holding member, the abrasive tool body is composed of at least one serrated substrate, the serrated surface of the substrate comprises an inclined surface, a diamond layer is plated on the inclined surface, the diamond layer is arranged in a single layer in the normal direction of the inclined surface, the area on the inclined surface where diamond particles are to be plated is provided with an electroplated layer, the diamond particles in the diamond layer are encased and plated in the electroplated layer, and in the normal direction of the inclined surface, the thickness of the electroplated layer is greater than the particle size of the diamond particles; when the abrasive tool body is formed by stacking a plurality of the substrates, grooves are formed between two adjacent serrations on the substrate, and the plurality of grooves on each layer of the substrate are combined and communicated with the plurality of grooves on an adjacent layer of the substrate to form a tooth plate water channel. The beneficial effects of the present disclosure include: the serrated substrate is conducive to achieving intermittent grinding and optimizing chip removal; the single-layer diamond layer is conducive to improving the self-sharpening property of the diamond layer; the diamond particles are encased and plated in the electroplated layer, and the thickness of the electroplated layer is greater than the particle size of the diamond particles, which is conducive to ensuring the holding force of the electroplated layer on the diamond particles and improving the service life of the diamonds; the tooth plate water channel is conducive to establishing an internal cooling manner, optimizing the cooling effect during grinding, and this structure also achieves a good chip removal effect. The embodiments of the present disclosure can prefabricate components and meet different market demands for abrasive tools and sawing tools through combined assembly, making the abrasive tools suitable for efficient processing, optimizing processing quality, and at the same time, can partially replace brazed diamond abrasive tools and powder metallurgy diamond abrasive tools, improving sharpness and service life, and reducing manufacturing costs. On the basis of the above technical solution, the present invention can be further improved as follows. Further, on the inclined surface of a single serration of the substrate, the difference in the wear direction of the abrasive tool during operation between any two points spaced by one time the particle size of the diamond particles in the rotation direction is greater than or equal to 1/4 of the particle size of the diamond particles and less than or equal to 1/2 of the particle size of the diamond particles. The beneficial effects of adopting the above further solution are that it is conducive to adjusting the abrasive tool to have stable self-sharpening property, service life and sharpness. Further,