Novel ultra-thin and ultra-hard diamond wheel

By introducing a connecting unit into the ultra-thin, ultra-hard diamond wheel, the impact force during high-speed grinding is absorbed, solving the problem of easy wheel breakage and improving processing stability and safety.

CN224144332UActive Publication Date: 2026-04-21HAIAN BOKE SUPERHARD MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HAIAN BOKE SUPERHARD MATERIALS CO LTD
Filing Date
2025-05-07
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing ultra-thin and ultra-hard diamond wheels are prone to generating high-intensity impact forces when they come into instantaneous contact with the workpiece at high speeds. This causes micro-cracks inside the material to expand rapidly, resulting in the wheel body breaking apart and affecting processing efficiency and safety.

Method used

The connecting unit, consisting of an external gear ring, a limiting ring, a column, and a spring, absorbs the impact force during high-speed grinding and adapts to different grinding intensities by adjusting the strain threshold, thereby enhancing the structural toughness.

Benefits of technology

It effectively absorbs the impact force during high-speed grinding, avoids damage to the wheel body, improves processing stability and safety, and extends tool life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of diamond wheels, in particular to a novel ultra-thin and ultra-hard diamond wheel which comprises a wheel body and further comprises a base body, the base body is fixedly connected to the top of the wheel body, and the base body is made of iron-based alloy materials. The connecting unit is arranged at the top of the base body, the connecting unit comprises a connecting piece, the connecting piece is used for absorbing high-strength impact force generated when the wheel body is subjected to high-speed grinding and instantly makes contact with a workpiece, the connecting piece comprises an outer gear ring, and the outer gear ring is arranged on the outer side of the connecting piece; the outer gear ring is used for driving the connecting piece to adjust a strain threshold value; the connecting unit comprises an outer gear ring rotationally connected to the top of the base body, the top of the outer gear ring is fixedly connected with a limiting ring, and a connecting piece is arranged in the outer gear ring. According to the novel ultra-thin and ultra-hard diamond wheel, when the ultra-thin and ultra-hard diamond wheel rotates at a high speed, high-strength impact force generated when the ultra-thin and ultra-hard diamond wheel makes instant contact with a workpiece during high-speed grinding can be absorbed; and damage is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of diamond wheel technology, specifically a novel ultra-thin and ultra-hard diamond wheel. Background Technology

[0002] Diamond wheels are core tools used for precision grinding of hard material surfaces. By embedding superhard abrasive grains such as diamond or cubic boron nitride, they can efficiently remove material, polish or shape glass, ceramics, gemstones, cemented carbide and high-strength metals, and can meet the needs of mirror-level smoothness and complex surface processing.

[0003] While existing ultrathin and ultrahard diamond wheels are favored for their ability to handle high-strength materials due to their ultrathin and ultrahard properties, they have significant shortcomings in practical applications. Although their ultrathin design improves processing flexibility, it greatly weakens structural strength, much like trying to withstand enormous force with a thin blade. Although the ultrahard material ensures wear resistance, its high brittleness results in insufficient toughness. When the diamond wheel rotates at high speed and is subjected to severe friction and impact, stress easily concentrates throughout the wheel. Microcracks inside the material rapidly expand under alternating loads, eventually leading to wheel breakage. This not only causes a surge in tool wear and costs but also may cause safety accidents due to flying fragments, severely restricting processing efficiency and quality stability. To address these issues, we propose a new type of ultrathin and ultrahard diamond wheel. Utility Model Content

[0004] One of the technical problems this application aims to solve is that when the diamond wheel rotates at high speed and comes into instantaneous contact with the workpiece, it generates a high-intensity impact force, which easily concentrates stress in the whole. Under alternating loads, microcracks inside the material rapidly expand, eventually leading to the wheel body breaking apart.

[0005] To address the aforementioned technical problems, embodiments of this application provide a novel ultrathin, ultrahard diamond wheel, comprising a wheel body and further comprising:

[0006] The base body is fixedly connected to the top of the wheel body, and the base body is made of iron-based alloy material;

[0007] A connecting unit is disposed on the top of the base. The connecting unit includes a connector for absorbing the high-intensity impact force generated when the wheel comes into instantaneous contact with the workpiece during high-speed grinding. The connector includes an external gear ring disposed on the outside of the connector and is used to drive the connector to adjust the strain threshold.

[0008] In some embodiments, the connecting unit includes an external gear ring rotatably connected to the top of the base, a limit ring fixedly connected to the top of the external gear ring, and a connector provided inside the external gear ring for connecting the wheel body.

[0009] In some embodiments, the connector includes a first connecting block fixedly connected to the top of the base, a first column fixedly connected to the top of the first connecting block, a plurality of limiting grooves externally formed on the first column, a second column disposed on the top of the first column, the first column and the second column being slidably connected, a second connecting block fixedly connected to the top of the second column, a lifting ring slidably sleeved on the outside of the first column, an internal gear ring externally threaded onto the lifting ring, and springs sleeved on the first column and the second column.

[0010] In some embodiments, the internal gear ring and the external gear ring mesh, and the internal gear ring is limited at the bottom of the limiting ring.

[0011] In some embodiments, the connectors are configured as four groups, all four groups of connectors are arranged around the central axis of the base, and all four internal gear rings mesh with the external gear rings.

[0012] In some embodiments, a plate is fixedly connected to the top of the four second connecting blocks, a plurality of sliders are fixedly connected to the outside of the plate, and a connecting shaft is fixedly connected to the top of the plate.

[0013] In some embodiments, an outer cylinder is fixedly connected to the top of the base, and a plurality of sliding sleeves are fixedly connected to the inner side of the outer cylinder, with the plurality of sliding sleeves being slidably connected to a plurality of sliders respectively.

[0014] In some embodiments, four positioning rods are fixedly connected to the top of the base, each of the four positioning rods is inserted through the plate, and each of the four positioning rods is fixedly connected to a positioning ring.

[0015] This utility model has at least the following beneficial effects:

[0016] By setting up a connecting unit, when the wheel is subjected to a high-intensity impact, the first and second columns in the connecting parts will contract, which in turn will compress the spring. The spring provides a rebound force to absorb the impact force. In addition, by removing the outer cylinder and rotating the outer gear ring, the outer gear ring will drive the inner gear ring to rotate, which in turn will drive the lifting ring to rise and fall. The rise and fall of the lifting ring can adjust the compression of the spring. At this time, the strain threshold of the connecting parts can be adjusted to adapt to different grinding intensities. In short, this device can absorb the high-intensity impact force generated when the ultra-thin and ultra-hard diamond wheel comes into instantaneous contact with the workpiece during high-speed grinding, thus avoiding damage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This utility model Figure 1 A schematic diagram of the decomposition process;

[0019] Figure 3 This is a schematic diagram of the connection unit structure of this utility model;

[0020] Figure 4 This utility model Figure 2 A schematic diagram of the decomposition process;

[0021] Figure 5 This is a schematic diagram of the wheel body, base body, and connecting parts in this utility model.

[0022] In the diagram: 1. Wheel body; 2. Base body; 3. Connecting unit; 31. External gear ring; 32. Limiting ring; 33. Connecting piece; 331. First connecting block; 332. First column; 333. Limiting groove; 334. Second column; 335. Second connecting block; 336. Lifting ring; 337. Internal gear ring; 338. Spring; 4. Plate body; 5. Slider; 6. Connecting shaft; 7. Outer cylinder; 8. Sliding sleeve; 9. Positioning rod; 10. Positioning ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0024] Please see Figures 1-5 This utility model provides a technical solution:

[0025] A novel ultrathin and ultrahard diamond wheel includes a wheel body 1, a base 2, and a connecting unit 3.

[0026] The base 2 is fixedly connected to the top of the wheel 1. The base 2 is made of iron-based alloy material. The connecting unit 3 is set on the top of the base 2. The connecting unit 3 includes a connector 33. The connector 33 is used to absorb the high impact force generated when the wheel 1 comes into instantaneous contact with the workpiece during high-speed grinding. The connector 33 includes an external gear ring 31. The external gear ring 31 is set on the outside of the connector 33. The external gear ring 31 is used to drive the connector 33 to adjust the strain threshold to adapt to different grinding forces.

[0027] The connecting unit 3 includes an external gear ring 31 rotatably connected to the top of the base 2. The external gear ring 31 has a large rotational connection force with the base 2 to prevent the external gear ring 31 from being driven during high-speed rotation, which would affect the absorption of impact force. A limit ring 32 is fixedly connected to the top of the external gear ring 31. A connecting member 33 is provided inside the external gear ring 31 for connecting the wheel body 1. The connecting member 33 includes a first connecting block 331 fixedly connected to the top of the base 2. A first column 332 is fixedly connected to the top of the first connecting block 331. Multiple limit grooves 333 are opened on the outside of the first column 332. A second column 334 is provided on the top of the first column 332. The first column 332 and the second column 334 are slidably connected. A second connecting block 335 is fixedly connected to the top of the two columns 334. A lifting ring 336 is slidably sleeved on the outside of the first column 332. An internal gear ring 337 is threaded onto the outside of the lifting ring 336. A spring 338 is sleeved on the first column 332 and the second column 334. The internal gear ring 337 and the external gear ring 31 mesh. The internal gear ring 337 is limited at the bottom of the limiting ring 32. The connecting parts 33 are set in four groups. All four groups of connecting parts 33 are arranged around the central axis of the base 2. All four internal gear rings 337 mesh with the external gear rings 31. It should be noted that the first column 332 and the second column 334 are filled with damping medium to avoid vibration during extension and contraction, which would affect the high-speed rotation of the wheel 1.

[0028] In use, when the wheel 1 is subjected to a high impact force, the wheel 1 drives the base 2 to compress, thereby causing the first column 332 and the second column 334 to contract, which in turn causes the spring 338 to compress. The spring 338 provides a rebound force to absorb the impact force. In addition, the outer cylinder 7 is removed, and then the outer gear ring 31 is rotated. The outer gear ring 31 drives the inner gear ring 337 to rotate. Since the inner gear ring 337 is limited by the limiting ring 32 and cannot rise or fall, the lifting ring 336 can be driven to rise or fall. The rise and fall of the lifting ring 336 can adjust the compression of the spring 338. At this time, the strain threshold of the connecting piece 33 can be adjusted. Example 2

[0029] Please see Figures 1-5 This utility model provides a technical solution:

[0030] Unlike Embodiment 1, the top of the four second connecting blocks 335 is fixedly connected to a plate 4, and multiple sliders 5 are fixedly connected to the outside of the plate 4. A connecting shaft 6 is fixedly connected to the top of the plate 4. The top of the base 2 is fixedly connected to an outer cylinder 7, and multiple sliding sleeves 8 are fixedly connected to the inner side of the outer cylinder 7. The multiple sliding sleeves 8 are slidably connected to the multiple sliders 5 respectively. The top of the base 2 is fixedly connected to four positioning rods 9, all of which are inserted through the plate 4. The top of each of the four positioning rods 9 is fixedly connected to a positioning ring 10. By setting the positioning ring 10, the positioning rods 9 can be restricted, preventing the plate 4 from detaching from the positioning rods 9 and strengthening the connection of the overall structure.

[0031] The connecting shaft 6 connects to the existing drive equipment. When grinding, the connecting piece 33 is compressed, which simultaneously drives the plate 4 to move outside the positioning rod 9. At the same time, the slider 5 on the outside of the plate 4 slides inside the sliding sleeve 8 on the inside of the outer cylinder 7, which can further limit the compression and movement of the connecting piece 33 and prevent it from deviating from the axis, thus causing damage to the wheel 1 during grinding.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A new type of ultra-thin superhard wheel, comprising a wheel body (1), characterized in that: It also includes: The base (2) is fixedly connected to the top of the wheel body (1) and is made of iron-based alloy material; A connecting unit (3) is disposed on the top of the base (2). The connecting unit (3) includes a connector (33). The connector (33) is used to absorb the high-intensity impact force generated when the wheel (1) grinds at high speed and comes into instantaneous contact with the workpiece. The connector (33) includes an external gear ring (31). The external gear ring (31) is disposed on the outside of the connector (33). The external gear ring (31) is used to drive the connector (33) to adjust the strain threshold.

2. The novel ultrathin superhard wheel of claim 1, wherein: The connecting unit (3) includes an external gear ring (31) rotatably connected to the top of the base (2), a limit ring (32) fixedly connected to the top of the external gear ring (31), and a connector (33) provided inside the external gear ring (31) for connecting the wheel body (1).

3. The novel ultrathin ultrahard wheel of claim 2, wherein: The connector (33) includes a first connecting block (331) fixedly connected to the top of the base (2), a first column (332) fixedly connected to the top of the first connecting block (331), a plurality of limiting grooves (333) are provided on the outside of the first column (332), a second column (334) is provided on the top of the first column (332), the first column (332) and the second column (334) are slidably connected, a second connecting block (335) is fixedly connected to the top of the second column (334), a lifting ring (336) is slidably sleeved on the outside of the first column (332), an internal gear ring (337) is threaded on the outside of the lifting ring (336), and a spring (338) is sleeved on the first column (332) and the second column (334).

4. The novel ultrathin superhard wheel of claim 3, wherein: The internal gear ring (337) and the external gear ring (31) mesh, and the internal gear ring (337) is positioned at the bottom of the limiting ring (32).

5. The novel ultrathin superhard wheel of claim 3, wherein: The connector (33) is configured in four groups, and the four groups of connectors (33) are arranged around the central axis of the base (2), and the four internal gear rings (337) are engaged with the external gear rings (31).

6. The novel ultrathin ultrahard wheel of claim 3, wherein: The top of the four second connecting blocks (335) is fixedly connected to a plate (4), and a plurality of sliders (5) are fixedly connected to the outside of the plate (4). The top of the plate (4) is fixedly connected to a connecting shaft (6).

7. The novel ultrathin ultrahard wheel of claim 1, wherein: The top of the base (2) is fixedly connected to an outer cylinder (7), and the inner side of the outer cylinder (7) is fixedly connected to a plurality of sliding sleeves (8), and the plurality of sliding sleeves (8) are slidably connected to a plurality of sliders (5).

8. The novel ultrathin superhard wheel of claim 1, wherein: The top of the base (2) is fixedly connected with four positioning rods (9), all four positioning rods (9) are inserted through the plate (4), and the top of each of the four positioning rods (9) is fixedly connected with a positioning ring (10).