Diamond grinding wheel for machining CFRP products

Abstract

The utility model belongs to the technical field of diamond grinding wheels, and particularly relates to a diamond grinding wheel for machining CFRP products. The abrasive material comprises a base body and an abrasive material array. The base body comprises a cup body and a cup base. The grinding material array comprises a plurality of grinding material sections; the plurality of material grinding sections are uniformly arranged on the cup body, and a vibration reduction position is defined between every two adjacent material grinding sections; and a plurality of air holes are formed in the grinding section. According to the diamond grinding wheel, the adverse effect of continuous grinding vibration on a CFRP product can be reduced, the chip removal and heat dissipation capacity of the diamond grinding wheel is improved, and the resin adhesion phenomenon in the machining process is avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of diamond grinding wheels, and particularly relates to a diamond grinding wheel for CFRP product processing. BACKGROUND

[0002] CFRP (Carbon Fiber Reinforced Polymer) is the abbreviation of carbon fiber reinforced polymer composite material, which is a composite material taking carbon fiber as reinforcing material and polymer such as resin as matrix.

[0003] Due to the characteristics of light weight and high strength, CFRP is widely used in many fields, including:

[0004] ·‌Aerospace‌: Because of its lightweight and high-strength characteristics, it has become the fourth largest aerospace structural material after aluminum, steel and titanium.

[0005] ·‌Automotive industry‌: Used for vehicle body structural parts, 50% lighter than steel materials and 30% lighter than aluminum materials, significantly reducing vehicle weight.

[0006] ·‌Building reinforcement‌: CFRP is widely used in concrete building structure reinforcement.

[0007] Due to its high strength, lightweight and anisotropic characteristics, CFRP products have special requirements for the shape and structure design of the grinding wheel during the grinding process, and need to consider efficient cutting, reduce vibration and avoid resin adhesion and other problems. INNOVATION CONTENT

[0008] Therefore, the application provides a diamond grinding wheel for CFRP product processing to solve all or part of the technical problems described in the background art.

[0009] The innovative idea of the application is to adopt a cup body grinding wheel structure, segment the abrasive layer at the cup body edge position and set a damping position between the abrasive segments; reduce continuous grinding vibration and provide a chip removal and heat dissipation channel through the damping belt; set air holes on the abrasive segments and set a chip removal groove on the base cup, increase the chip removal and heat dissipation capacity of the grinding wheel to avoid resin adhesion.

[0010] The solution provided by the application to solve the technical problems is:

[0011] A diamond grinding wheel for CFRP product processing, comprising a base and an abrasive array; the base comprises a cup body and a cup seat; the abrasive array comprises a plurality of abrasive segments; the plurality of abrasive segments are uniformly arranged on the cup body, and each two adjacent abrasive segments define a damping position therebetween.

[0012] Further, the abrasive segments have a fan-shaped structure with the same size and structure.

[0013] Further, the abrasive array has a ring structure; that is, the plurality of abrasive segments are arranged in a ring structure at the edge portion of the cup body.

[0014] Further, the abrasive segment is provided with air holes penetrating the abrasive segment. Preferably, the air holes include longitudinal air holes and radial air holes. Preferably, the plurality of air holes are uniformly distributed in the abrasive segment. Preferably, the air holes penetrate the abrasive segment.

[0015] Further, the cup seat is further provided with an assembly hole.

[0016] Further, the cup seat is further provided with a chip removal groove. Preferably, the chip removal groove extends radially.

[0017] Further, the diamond grinding wheel further comprises a transition layer, and the abrasive array is sintered on the cup body through the transition layer material.

[0018] Beneficial technical effects:

[0019] 1. The abrasive segments are uniformly and spacedly arranged at the edge portion of the cup body, and each two adjacent abrasive segments define a vibration reduction position therebetween;

[0020] 2. The abrasive segment adopts a multi-air-hole loose structure;

[0021] 3. The cup seat is provided with a chip removal groove extending in the axial direction;

[0022] By adopting the above technical measures, the application can reduce the adverse effects of continuous grinding vibration on CFRP products, increase the chip removal and heat dissipation capacity of the diamond grinding wheel, and avoid the phenomenon of resin adhesion during processing.

[0023] The technical solutions and technical effects of the application will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 : Top view of the diamond grinding wheel for CFRP product curved surface machining;

[0025] Figure 2 : Front view of the diamond grinding wheel for CFRP product curved surface machining;

[0026] FIGURE DESCRIPTION:

[0027] 1 - base; 11 - cup body, 12 - cup seat, 13 - assembly hole, 14 - chip removal groove;

[0028] 2 - abrasive array; 21 - abrasive segment, 22 - vibration reduction position, 23 - air hole;

[0029] 231 - longitudinal air hole, 232 - radial air hole. DETAILED DESCRIPTION

[0030] Referring to Figure 1 and Figure 2 The diamond grinding wheel for CFRP product processing provided by the application comprises a metal base 1 and an abrasive array 2; the abrasive array 2 is sintered on the base 1 through a transition layer adhesive.

[0031] The material of the base 1, the material of the diamond abrasive and the material of the transition layer can be selected from various corresponding materials in existing diamond grinding wheels.

[0032] The base 1 in the application comprises a cup body 11 and a cup seat 12; the cup body 11 and the cup seat 12 are integrally formed to jointly constitute a cup-shaped grinding wheel structure. Both the cup body 11 and the cup seat 12 have a circular structure.

[0033] The circular cup seat 12 is provided with an assembly hole 13 at the middle part, which is used for assembling the grinding wheel to a grinding tool such as a grinder.

[0034] A plurality of chip removal grooves 14 diverging from the center to the edge part are arranged around the assembly hole 13. The chip removal grooves 14 are uniformly arranged on the cup seat 12, which can increase the chip removal and heat dissipation capacity of the grinding wheel through axial flow.

[0035] The abrasive array 2 comprises a plurality of abrasive segments 21; the plurality of abrasive segments 21 are completely identical in size and structure and all have a sector structure. The plurality of abrasive segments 21 are uniformly arranged at the edge part of the cup body 11, and each two adjacent abrasive segments 21 define a damping position 22.

[0036] The abrasive array 2 has a ring structure, that is, the plurality of abrasive segments 21 are arranged in a ring structure at the edge part of the cup body.

[0037] A plurality of air holes 23 are formed on each abrasive segment 21; the air holes 23 comprise longitudinal air holes 231 and radial air holes 232. The air holes 23 penetrate through the entire abrasive segment 21 from top to bottom; that is, the longitudinal air holes 231 penetrate through the abrasive segment 21 from top to bottom, and the radial air holes 232 penetrate through the abrasive segment 21 along the radial direction.

[0038] Principle and effect description:

[0039] The vibration generated in the grinding process can be buffered through the damping position 22 to avoid adverse effects on the product (such as causing the product to have defects such as delamination or burr).

[0040] The air holes 24 on the abrasive segment 21 and the chip removal grooves 14 on the cup seat 12 help to improve the heat dissipation and chip removal capacity of the grinding wheel, avoiding the phenomenon of adhesion of the resin in the CFRP product due to thermal deformation during grinding processing.

[0041] The diamond grinding wheel disclosed by the application has a damping function, thereby avoiding the adverse effects of continuous grinding vibration during grinding processing on products; and has enhanced heat dissipation and chip removal capacity, thereby avoiding the resin adhesion phenomenon during CFRP product processing.

[0042] The technical solutions and technical effects of the application are described in detail above in combination with the drawings and specific embodiments of the application. It should be noted that other embodiments can be developed by those skilled in the art on the basis of the application; any simple transformation and equivalent replacement without departing from the innovative concept of the application are covered by the application and belong to the protection scope of the patent.

Claims

1. A diamond grinding wheel for CFRP product processing, comprising a base body (1) and an abrasive array (2); characterized in that: the base body (1) comprises a cup body (11) and a cup seat (12); the abrasive array (2) comprises a plurality of abrasive segments (21); the plurality of abrasive segments (21) are uniformly arranged on the cup body (11), and each two adjacent abrasive segments (21) define a damping position (22) therebetween.

2. The diamond grinding wheel for CFRP product processing according to claim 1, characterized by: The abrasive segments (21) have a fan-shaped structure with the same size and structure.

3. The diamond grinding wheel for CFRP product machining according to claim 1, characterized by: The abrasive array (2) has a ring structure.

4. The diamond grinding wheel for CFRP product processing according to claim 1, characterized by: The abrasive segments (21) are provided with air holes (23) penetrating through the abrasive segments (21).

5. The diamond grinding wheel for CFRP article machining according to claim 1, characterized by: The air holes (23) include longitudinal air holes (231) and radial air holes (232).

6. The diamond grinding wheel for CFRP article machining according to claim 1, characterized by: The cup seat (12) is further provided with an assembly hole (13).

7. The diamond grinding wheel for CFRP article machining according to claim 6, characterized by: The cup seat (12) is further provided with a chip removal groove (14).

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