CBN grinding wheel curve contour machining device
By designing a CBN grinding wheel curve profile processing device and using a motor to drive the dressing head to rotate in conjunction with the grinding wheel, the problem of loss of grinding ability caused by rounding of CBN grinding wheel abrasive particles or chip embedment is solved, and the grinding wheel can be dressed and its life extended.
Patent Information
- Application Number
- CN202422751007.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-12
AI Technical Summary
During the grinding process, CBN grinding wheels lose their grinding ability due to rounded abrasive grains or chip impaction. It is difficult to effectively trim their curved profile with existing technology.
A CBN grinding wheel curve contour processing device was designed, which included a workbench, supporting legs, a motor, a clamping cylinder, a motor, a rotating shaft, a bevel gear and a dressing head. The motor drove the dressing head to fit the grinding wheel and rotate the grinding wheel for dressing.
Effectively restore the grinding ability of CBN grinding wheels and extend their service life.
Smart Images
Figure CN223477353U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CBN grinding wheel processing technology, and in particular to a CBN grinding wheel curve contour processing device. Background Technology
[0002] CBN grinding wheels are grinding wheels made of cubic boron nitride (CBN) abrasives. They possess high hardness, high wear resistance, and excellent thermal conductivity. Their structure generally includes a working layer, a matrix, and a transition layer. The working layer is the working part of the grinding wheel, composed of abrasive, bonding agent, and filler. The matrix, usually made of aluminum, steel, or bakelite, provides support. The transition layer firmly connects the working layer to the matrix. CBN grinding wheels are widely used in processing high-hardness materials such as ferrous metals, heat-resistant steel, hardened alloy steel, and bearing steel. Due to their excellent performance, CBN grinding wheels have important applications in high-precision machining fields such as automotive parts and mechanical parts. During grinding, the abrasive grains on the CBN wheel are easily worn smoothed and blunted by friction and compression. Alternatively, when grinding tough materials, abrasive chips can become embedded in the pores on the surface of the CBN grinding wheel, causing blockage and ultimately rendering the wheel ineffective. Therefore, after a period of use, CBN grinding wheels require dressing of their profile using a machining device. Utility Model Content
[0003] The main objective of this invention is to provide a CBN grinding wheel profile machining device, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A CBN grinding wheel profile machining device includes a worktable, with support legs fixedly installed at the four corners of the lower surface of the worktable. A No. 1 motor is fixedly installed on the lower surface of the worktable near the other end. The rotating part of the No. 1 motor passes through the worktable and is fixedly connected to a mounting plate. A parallel finger gripper cylinder is fixedly installed on the upper surface of the mounting plate. An L-shaped mounting bracket is fixedly installed at one end of the upper surface of the worktable, and a machining structure is provided on the L-shaped mounting bracket.
[0006] Preferably, the processing structure includes a protective cover, a second motor, a rotating shaft, a first bearing, a rectangular groove, a first bevel gear, a rectangular slide, a rectangular slider, a first groove, a telescopic rod, a threaded rod, a second bearing, a second bevel gear, a rectangular column, and a dressing cutter head.
[0007] Preferably, a rectangular column is fixedly installed on the upper surface of the L-shaped mounting bracket, a protective cover is fixedly installed at one end of the upper surface of the rectangular column, and a second motor is fixedly installed inside the protective cover on the upper surface of the rectangular column.
[0008] Preferably, the rotating part of the second motor is fixedly connected to a rotating shaft, and a bearing is fixedly installed on the outer surface of the rotating shaft near the lower end. A rectangular groove is opened inside the rectangular column.
[0009] Preferably, a bearing is fixedly installed in the middle of the upper surface of the rectangular groove, a bevel gear is fixedly installed in the lower surface of the rotating shaft, a groove is formed on the other end surface of the rectangular column, and a bearing is fixedly installed in the middle of the other end surface of the rectangular groove.
[0010] Preferably, a No. 2 bearing is fixedly installed on the outer surface of the threaded rod near one end, a No. 2 bevel gear is fixedly installed on one end surface of the threaded rod, the No. 2 bevel gear meshes with the No. 1 bevel gear, and a telescopic rod is threadedly installed on the outer surface of the threaded rod.
[0011] Preferably, a rectangular slider is fixedly installed at one end of both the upper and lower surfaces of the telescopic rod, and a rectangular groove is opened on both the upper and lower surfaces of the first groove. The rectangular slider is slidably installed in the rectangular groove, and a trimming head is fixedly installed at the other end of the telescopic rod.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] In this invention, through the processing structure, when the CBN grinding wheel loses its grinding ability, the CBN grinding wheel can be placed on the parallel finger gripper cylinder and fixed. Then, the second motor is started to drive the dressing head to fit the curve contour of the CBN grinding wheel. Then, the first motor is started to drive the CBN grinding wheel to rotate for dressing. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a CBN grinding wheel profile machining device according to the present invention;
[0015] Figure 2 This is a partial cross-sectional view of a CBN grinding wheel profile machining device according to the present invention;
[0016] Figure 3 This utility model relates to a CBN grinding wheel profile machining device. Figure 2 Enlarged view of point A in the middle.
[0017] In the diagram: 1. Workbench; 101. Support leg; 2. Motor No. 1; 3. Mounting plate; 301. Parallel finger gripper cylinder; 4. L-shaped mounting bracket; 5. Machining structure; 501. Protective cover; 502. Motor No. 2; 503. Rotary shaft; 504. Bearing No. 1; 505. Rectangular groove; 506. Bevel gear No. 1; 507. Rectangular slide; 508. Rectangular slider; 509. Groove No. 1; 510. Telescopic rod; 511. Threaded rod; 512. Bearing No. 2; 513. Bevel gear No. 2; 514. Rectangular column; 515. Dressing cutter head. Detailed Implementation
[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0019] like Figure 1-3 As shown, a CBN grinding wheel curve contour processing device includes a worktable 1. Support legs 101 are fixedly installed at the four corners of the lower surface of the worktable 1. A No. 1 motor 2 is fixedly installed on the lower surface of the worktable 1 near the other end. The rotating part of the No. 1 motor 2 passes through the worktable 1 and is fixedly connected to a mounting plate 3. A parallel finger gripper cylinder 301 is fixedly installed on the upper surface of the mounting plate 3. An L-shaped mounting frame 4 is fixedly installed at one end of the upper surface of the worktable 1. A processing structure 5 is provided on the L-shaped mounting frame 4.
[0020] The processing structure 5 includes a protective cover 501, a second motor 502, a rotating shaft 503, a first bearing 504, a rectangular groove 505, a first bevel gear 506, a rectangular slide 507, a rectangular slider 508, a first groove 509, a telescopic rod 510, a threaded rod 511, a second bearing 512, a second bevel gear 513, a rectangular column 514, and a dressing cutter head 515; a rectangular column 514 is fixedly mounted on the upper surface of the L-shaped mounting bracket 4, and a protective cover is fixedly mounted at one end of the upper surface of the rectangular column 514. A second motor 502 is fixedly installed inside the protective cover 501 on the upper surface of the rectangular column 514. A rotating shaft 503 is fixedly connected to the rotating part of the second motor 502. A bearing 504 is fixedly installed on the outer surface of the rotating shaft 503 near its lower end. A rectangular groove 505 is formed inside the rectangular column 514. A bearing 504 is fixedly installed in the middle of the upper surface of the rectangular groove 505. A bevel gear 506 is fixedly installed on the lower surface of the rotating shaft 503. The other end of the rectangular column 514 is... A first groove 509 is provided, and a second bearing 512 is fixedly installed on the middle of the other end surface of a rectangular groove 505. A second bearing 512 is fixedly installed on the outer surface of a threaded rod 511 near one end. A second bevel gear 513 is fixedly installed on one end surface of the threaded rod 511, meshing with a first bevel gear 506. A telescopic rod 510 is threaded onto the outer surface of the threaded rod 511. Rectangular sliders 508 are fixedly installed on one end of both the upper and lower surfaces of the telescopic rod 510. The first groove 509 is located on the upper and lower surfaces of the first groove 509. The surface is provided with rectangular grooves 507, and rectangular sliders 508 are slidably installed in the rectangular grooves 507. The other end of the telescopic rod 510 is fixedly installed with a dressing head 515. When the CBN grinding wheel loses its grinding ability, the CBN grinding wheel can be placed on the parallel finger gripper cylinder 301 and fixed. Then, the second motor 502 is started to drive the dressing head 515 to fit the curve contour of the CBN grinding wheel. Then, the first motor 2 is started to drive the CBN grinding wheel to rotate for dressing.
[0021] It should be noted that this utility model is a CBN grinding wheel profile machining device. When the CBN grinding wheel loses its grinding ability, the CBN grinding wheel is first placed on the parallel finger gripper cylinder 301 and fixed. Then, the second motor 502 is started, causing the rotating part of the second motor 502 to drive the rotating shaft 503 to rotate on the first bearing 504. This causes the first bevel gear 506, which is fixedly installed on the lower surface of the rotating shaft 503, to rotate. Because the first bevel gear 506 meshes with the second bevel gear 513, it drives the threaded rod 511 to rotate on the second bearing 512. This causes the telescopic rod 510, which is threaded on the outer surface of the threaded rod 511, to drive the rectangular slider 508, which is fixedly installed at one end of its upper and lower surfaces, to slide to the other end in the rectangular groove 507. This causes the dressing head 515, which is fixedly installed at the other end of the telescopic rod 510, to slowly move towards the CBN grinding wheel until it fits the profile of the CBN grinding wheel. Then, the first motor 2 is started to drive the CBN grinding wheel to rotate for dressing.
[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A CBN grinding wheel profile machining device, characterized in that: The workbench (1) is provided with support legs (101) fixedly installed at the four corners of the lower surface of the workbench (1). A motor (2) is fixedly installed on the lower surface of the workbench (1) near the other end. The rotating part of the motor (2) passes through the workbench (1) and is fixedly connected to a mounting plate (3). A parallel finger gripper cylinder (301) is fixedly installed on the upper surface of the mounting plate (3). An L-shaped mounting bracket (4) is fixedly installed at one end of the upper surface of the workbench (1). A processing structure (5) is provided on the L-shaped mounting bracket (4).
2. The CBN grinding wheel profile machining device according to claim 1, characterized in that: The processing structure (5) includes a protective cover (501), a second motor (502), a rotating shaft (503), a first bearing (504), a rectangular groove (505), a first bevel gear (506), a rectangular slide (507), a rectangular slider (508), a first groove (509), a telescopic rod (510), a threaded rod (511), a second bearing (512), a second bevel gear (513), a rectangular column (514), and a dressing cutter head (515).
3. The CBN grinding wheel profile machining device according to claim 2, characterized in that: A rectangular column (514) is fixedly installed on the upper surface of the L-shaped mounting bracket (4). A protective cover (501) is fixedly installed at one end of the upper surface of the rectangular column (514). A second motor (502) is fixedly installed inside the protective cover (501) on the upper surface of the rectangular column (514).
4. The CBN grinding wheel profile machining device according to claim 3, characterized in that: The rotating part of the second motor (502) is fixedly connected to a rotating shaft (503), and a bearing (504) is fixedly installed on the outer surface of the rotating shaft (503) near the lower end. A rectangular groove (505) is opened inside the rectangular column (514).
5. The CBN grinding wheel profile machining device according to claim 4, characterized in that: A bearing (504) is fixedly installed in the middle of the upper surface of the rectangular groove (505), a bevel gear (506) is fixedly installed in the lower surface of the rotating shaft (503), a groove (509) is opened on the other end surface of the rectangular column (514), and a bearing (512) is fixedly installed in the middle of the other end surface of the rectangular groove (505).
6. The CBN grinding wheel profile machining device according to claim 5, characterized in that: A second bearing (512) is fixedly installed on the outer surface of the threaded rod (511) near one end. A second bevel gear (513) is fixedly installed on one end surface of the threaded rod (511). The second bevel gear (513) meshes with the first bevel gear (506). A telescopic rod (510) is threaded onto the outer surface of the threaded rod (511).
7. The CBN grinding wheel profile machining device according to claim 6, characterized in that: A rectangular slider (508) is fixedly installed at one end of the upper and lower surfaces of the telescopic rod (510). A rectangular sliding groove (507) is opened on the upper and lower surfaces of the first groove (509). A rectangular slider (508) is slidably installed in the rectangular sliding groove (507). A trimming cutter head (515) is fixedly installed at the other end of the telescopic rod (510).