A ceramic CBN grinding wheel dressing disc roller

Abstract

This utility model discloses a disc roller for dressing ceramic CBN grinding wheels, comprising: a disc, a diamond abrasive layer, and a mounting sleeve. The disc is concentrically mounted on the mounting sleeve, and the diamond abrasive layer is disposed on the outer circumference of the disc. The mounting sleeve is provided with a baffle located on the back of the disc. The front of the baffle is recessed with a first annular groove, and the back of the baffle is recessed with a second annular groove. A connecting hole is provided between the second annular groove and the first annular groove. The edge of the first annular groove is provided with spray holes spaced apart and pointing obliquely towards the diamond abrasive layer. The ceramic CBN grinding wheel is dressed by rotating the diamond abrasive layer. Grinding fluid is sprayed directly into the second annular groove through a pipe. The grinding fluid generates centrifugal force through the rotation of the second annular groove, enters the first annular groove through the connecting hole, and is then sprayed simultaneously onto the diamond abrasive layer through multiple spray holes using centrifugal force to cool the diamond abrasive layer and the disc.

Description

Technical Field

[0001] This utility model relates to the field of disc roller technology, and in particular to a disc roller for dressing ceramic CBN grinding wheels. Background Technology

[0002] Ceramic CBN grinding wheels are grinding tools made with cubic boron nitride (CBN) as the abrasive and ceramic as the binder. They have high hardness and good heat resistance. Due to their dressable and high-temperature resistance characteristics, they have become the mainstream choice for high-speed and high-precision grinding and are specially used for precision machining of high-hardness materials.

[0003] Because ceramic CBN grinding wheels have high hardness, dressing them typically requires diamond rollers. Diamond, with its even higher hardness, can dress ceramic CBN grinding wheels, but the dressing process generates significant heat, easily leading to diamond oxidation and detachment. Therefore, when dressing ceramic CBN grinding wheels with diamond rollers, grinding fluid needs to be added to dissipate heat and cool the diamond roller. Current technology typically uses pipes to directly spray grinding fluid onto the area where the diamond roller contacts the ceramic CBN grinding wheel, which fails to cover the entire diamond roller and requires improvement. Utility Model Content

[0004] The purpose of this invention is to provide a disc roller for dressing ceramic CBN grinding wheels, which can dress ceramic CBN grinding wheels and improve the cooling effect.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A ceramic CBN grinding wheel dressing disc roller includes: a disc, a diamond abrasive layer, and a mounting sleeve. The disc is concentrically mounted on the mounting sleeve, and the diamond abrasive layer is disposed on the outer circumference of the disc. The mounting sleeve is provided with a baffle located on the back of the disc. The front of the baffle is recessed with a first annular groove, and the back of the baffle is recessed with a second annular groove. A connecting hole is provided between the second annular groove and the first annular groove. The edge of the first annular groove is provided with spray holes that are spaced apart and point obliquely towards the diamond abrasive layer.

[0007] The disc has a positioning hole in the middle that corresponds to the outer circle of the mounting sleeve.

[0008] The connecting hole is located at the bottom edge of the second annular groove.

[0009] The outer diameter of the second annular groove is smaller than the outer diameter of the first annular groove.

[0010] The inner wall of the second annular groove is provided with a conical surface, and the opening diameter of the second annular groove is smaller than the bottom diameter of the second annular groove.

[0011] The baffle plate has an array of screws that penetrate the disc, and each screw has a nut located on the front side of the disc.

[0012] The disc is provided with mounting holes corresponding to screws.

[0013] The beneficial effects of this utility model are as follows: A disc roller for dressing ceramic CBN grinding wheels is fixed on a rotating shaft by a mounting sleeve and rotates at high speed, driving the rotation of the diamond abrasive layer to dress the ceramic CBN grinding wheel. Grinding fluid is sprayed directly into the second annular groove through a pipe. The grinding fluid generates centrifugal force through the rotation of the second annular groove and enters the first annular groove through a connecting hole. Then, using centrifugal force, it is sprayed simultaneously onto the diamond abrasive layer through multiple nozzles to cool the diamond abrasive layer and the disc, thereby improving the cooling effect and working stability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 yes Figure 1 Exploded view. Detailed Implementation

[0016] The following is combined with Figures 1-2 The technical solution of this utility model will be further illustrated through specific embodiments.

[0017] like Figure 1 The ceramic CBN grinding wheel dressing disc roller shown includes: a disc 2, a diamond abrasive layer 3, and a mounting sleeve 1. The disc 2 is concentrically mounted on the mounting sleeve 1. The middle of the disc 2 is provided with a positioning hole 13 corresponding to the outer circle of the mounting sleeve 1, which facilitates assembly and has high concentricity.

[0018] The diamond abrasive layer 3 is disposed on the outer circle of the disc 2. The diamond abrasive layer 3 is fixed on the outer circle of the disc 2 by sintering or electroplating, resulting in a stable structure. The diamond abrasive layer 3 has high hardness and can be used for dressing ceramic CBN grinding wheels.

[0019] A baffle 4 is provided on the mounting sleeve 1, located on the back of the disc 2. In this embodiment, screws 6 that penetrate the disc 2 are arranged in an array on the front of the baffle 4, and nuts 7 located on the front of the disc are provided on the screws 6 to fix the disc 2.

[0020] like Figure 2 As shown, mounting holes 12 corresponding to screws 6 are provided on the disc 2, facilitating assembly and allowing the disc 2 to rotate together with the mounting sleeve 1. The mounting sleeve 1 and the baffle 4 can be made of an integrated steel structure, which has high strength and good high-temperature resistance. Screws 6 can be welded or threaded to the front of the baffle 4, ensuring structural stability.

[0021] A first annular groove 9 is recessed on the front side of the baffle 4, and the opening of the first annular groove 9 fits against the back side of the disc 2, thus sealing it through the back side of the disc 2. A second annular groove 10 is recessed on the back side of the baffle 4, and a connecting hole 8 is provided between the second annular groove 10 and the first annular groove 9 to allow the grinding fluid to flow.

[0022] like Figure 1 As shown, the outer diameter of the second annular groove 10 is smaller than the outer diameter of the first annular groove 9. The connecting hole 8 is located at the bottom edge of the second annular groove 10. Grinding fluid is sprayed directly into the second annular groove 10 through a pipe. The grinding fluid generates centrifugal force through the rotation of the second annular groove 10 and enters the first annular groove 9 through the connecting hole 8.

[0023] In this embodiment, the inner wall of the second annular groove 10 is provided with a conical surface 5. The opening diameter of the second annular groove 10 is smaller than the bottom diameter of the second annular groove 10. The small opening of the second annular groove 10 allows the grinding fluid entering the second annular groove 10 to smoothly enter the first annular groove 9 along the connecting hole 8 due to centrifugal force.

[0024] like Figure 1 and Figure 2 As shown, the edge of the first annular groove 9 is provided with spray holes 11 that are spaced apart and point obliquely towards the diamond abrasive layer 3. During the rotation of the baffle 4, the grinding fluid in the first annular groove 9 is sprayed simultaneously onto the diamond abrasive layer 3 through multiple spray holes 11 using centrifugal force to cool the diamond abrasive layer 3 and the disc 2. The grinding fluid is evenly distributed, which improves the cooling effect.

[0025] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A disc roller for dressing ceramic CBN grinding wheels, used for dressing ceramic CBN grinding wheels, characterized in that, include: The device comprises a disc, a diamond abrasive layer, and a mounting sleeve. The disc is concentrically mounted on the mounting sleeve, and the diamond abrasive layer is disposed on the outer circumference of the disc. The mounting sleeve is provided with a baffle located on the back of the disc. The front of the baffle is recessed with a first annular groove, and the back of the baffle is recessed with a second annular groove. A connecting hole is provided between the second annular groove and the first annular groove. The edge of the first annular groove is provided with nozzles that are spaced apart and point obliquely towards the diamond abrasive layer.

2. The disc roller for dressing ceramic CBN grinding wheels according to claim 1, characterized in that, The disc has a positioning hole in the middle that corresponds to the outer circle of the mounting sleeve.

3. The disc roller for dressing ceramic CBN grinding wheels according to claim 1, characterized in that, The connecting hole is located at the bottom edge of the second annular groove.

4. The disc roller for dressing ceramic CBN grinding wheels according to claim 1, characterized in that, The outer diameter of the second annular groove is smaller than the outer diameter of the first annular groove.

5. The disc roller for dressing ceramic CBN grinding wheels according to claim 1, characterized in that, The inner wall of the second annular groove is provided with a conical surface, and the opening diameter of the second annular groove is smaller than the bottom diameter of the second annular groove.

6. The disc roller for dressing ceramic CBN grinding wheels according to claim 1, characterized in that, The front of the baffle is provided with an array of screws that penetrate the disc, and each screw has a nut located on the front of the disc.

7. The disc roller for dressing ceramic CBN grinding wheels according to claim 6, characterized in that, The disc is provided with mounting holes corresponding to screws.

Images