Organic coating grinding wheel and preparation method thereof

Abstract

The invention relates to a preparation method of an organic coating grinding wheel. The preparation method comprises the steps that a profiling groove of a profiling rolling head is filled with grinding materials; the edge of the grinding wheel base body is coated with an adhesive; and the grinding wheel base body is placed in the profiling groove to be rolled, so that the edge of the grinding wheel base body is coated with the grinding material layer. According to the method, a mold does not need to be prepared, only the profiling rolling head of the roller press needs to be replaced according to different grinding wheel base bodies, and the machining cost is greatly reduced. In addition, according to the scheme, sintering and machining can be carried out only after coating and rolling, operation is easy, and manpower and material resources are saved.

Description

Technical Field

[0001] The invention relates to the field of grinding wheel preparation, and in particular to an organic coated grinding wheel and a preparation method thereof. Background Art

[0002] Grinding is the process of machining a workpiece using a grinding tool. It is an important method of mechanical finishing, characterized by high machining precision and good surface quality. With the development of modern manufacturing, grinding is increasingly used in the finishing of mechanical parts, and the grinding wheel is the most widely used tool in grinding.

[0003] In the process of making a grinding wheel, the grinding wheel base is usually placed in a mold, and the abrasive mixed with resin is placed in the mold containing the grinding wheel base. The abrasive is then extruded into shape using an extrusion device. For example, patent CN116423405A discloses a method for preparing a nano-conductive superhard resin grinding wheel, which includes: extracting the raw materials of the nano-conductive superhard resin grinding wheel according to the set volume percentage ratio of each component raw material: nano-conductive filler, superhard abrasive, resin powder, and auxiliary filler; using a melt-mechanical composite method to mix the nano-conductive filler, resin powder, superhard abrasive, and auxiliary filler to obtain a mixture; placing the grinding wheel base and the mixture into a molding die and hot pressing to obtain a grinding wheel precursor; curing the grinding wheel precursor and then mechanically processing it to obtain a nano-conductive superhard resin grinding wheel. This production method requires the production of a special grinding tool, and the steps are cumbersome and costly. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide an organic coated grinding wheel and a preparation method thereof. No mold needs to be prepared. Only the contour rolling head of the rolling machine needs to be replaced according to different grinding wheel substrates, which greatly reduces the processing cost. Moreover, during the production process, only coating and rolling are required before sintering and processing can be carried out. The operation is simple and saves manpower and material resources.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The present invention provides a method for preparing an organic coated grinding wheel, comprising:

[0007] Filling abrasive into the contour groove of the contour rolling head;

[0008] Apply adhesive to the edge of the grinding wheel base;

[0009] The grinding wheel base is placed in the contoured groove and rolled so that the edge of the grinding wheel base is coated with an abrasive layer.

[0010] Preferably, after placing the grinding wheel base into the contoured groove for rolling, the method further comprises:

[0011] coating the abrasive layer with the adhesive;

[0012] Placing the grinding wheel base into the contoured groove and rolling it so that a new abrasive layer is coated on the outside of the abrasive layer;

[0013] Repeat the above steps to the predetermined number of times.

[0014] Preferably, placing the grinding wheel base into the contoured groove for rolling comprises:

[0015] The pressure between the profiling rolling head and the grinding wheel base is controlled at a predetermined pressure.

[0016] Preferably, before applying the adhesive to the edge of the grinding wheel base, the method further comprises:

[0017] The grinding wheel base is cleaned.

[0018] Preferably, the adhesive is an organic resin.

[0019] Preferably, the organic resin includes phenolic, epoxy, or polyimide.

[0020] Preferably, a pore-forming agent is mixed into the abrasive.

[0021] The present invention also provides an organic coated grinding wheel obtained by the above preparation method, comprising a grinding wheel base, multiple abrasive layers and multiple bonding layers, wherein the multiple abrasive layers and the multiple bonding layers are alternately arranged on the outer layer of the grinding wheel base.

[0022] Preferably, the adhesive layer is an organic resin.

[0023] Preferably, a pore-forming agent is mixed into the abrasive layer.

[0024] The present invention has at least the following beneficial effects:

[0025] Traditional molding methods require the preparation of different molds for different grinding wheel substrates, resulting in complex mold structures and high production costs. This solution, however, eliminates the need for mold preparation and only requires replacing the contoured rolling head of the rolling machine for different grinding wheel substrates, significantly reducing processing costs. Furthermore, this solution requires only coating and rolling before sintering and processing, making the operation simple and saving manpower and material resources. Compared to traditional processes, this method reduces working hours by 20.5% and labor costs by 74.02%.

[0026] Different cutting objects require grinding wheels of different densities. The density of the grinding wheel can be adjusted by controlling the pressure of the contour rolling head. No density testing is required in subsequent processes, further saving time and labor costs.

[0027] Traditional grinding wheel manufacturing methods use glue to secure the grinding wheel base to the grinding wheel. During production and use, glue is susceptible to thermal expansion, causing the grinding wheel to crack and break. The glue process also contains chemical ingredients, which can have irreversible long-term health effects. This solution uses a resin bond as the bonding medium, fundamentally avoiding this problem and significantly improving the safety and stability of the grinding wheel during production and use.

[0028] Phenolic, epoxy, polyimide, etc. are selected as bonding media, which are non-toxic and harmless and very friendly to the environment and human body.

[0029] The addition of pore-forming agent improves the self-sharpening property of the grinding wheel and increases cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a side view of the working principle of the method for preparing an organic coated grinding wheel according to an embodiment of the present invention.

[0031] Figure 2 This is a front view illustrating the working principle of the method for preparing an organic coated grinding wheel according to an embodiment of the present invention.

[0032] Figure 3 This is a schematic structural diagram of a grinding wheel substrate not coated with abrasive grains according to an embodiment of the present invention;

[0033] Figure 4 for Figure 3 Enlarged view of a in the middle;

[0034] Figure 5 This is a schematic structural diagram of a grinding wheel substrate coated with abrasive grains according to an embodiment of the present invention;

[0035] Figure 6 for Figure 5 Enlarged view of middle b;

[0036] Reference numerals: 1, profiling rolling head; 2, profiling groove; 3, grinding wheel base; 4, abrasive layer. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0038] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0039] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0040] like Figure 1-6 As shown, an embodiment of the present invention provides a method for preparing an organic coated grinding wheel, comprising: filling abrasive into a contoured groove 2 of a contoured rolling head 1; applying an adhesive to the edge of a grinding wheel base 3; placing the grinding wheel base 3 into the contoured groove 2 and rolling it, so that the edge of the grinding wheel base 3 is coated with an abrasive layer 4.

[0041] The edge shape of the grinding wheel base 3 is consistent with the shape of the profiling groove 2. If the edge of the grinding wheel base 3 is a trapezoid, the profiling groove 2 is also set to a trapezoid, and the size of the profiling groove 2 is slightly larger than the edge of the grinding wheel base 3, so that abrasive can be placed therebetween. In addition, the length of the profiling groove 2 needs to be greater than the girth of the grinding wheel base 3. In the manufacturing process, first, in the profiling groove 2, the abrasive made is added, then adhesive is applied to the edge of the grinding wheel base 3, and then the grinding wheel base 3 edges are placed in the profiling groove 2 and rolled. The rolling process abrasive can be pressed onto the grinding wheel base 3 edges, and under the effect of adhesive, it is closely fitted with the grinding wheel base 3 edges. Through the above steps, the grinding wheel blank is made, and the blank made is sent to sintering, processing.

[0042] Traditional molding methods require different molds to be prepared for different grinding wheel substrates 3, resulting in complex mold structures and high production costs. However, this solution does not require mold preparation. Instead, it only requires replacing the contoured rolling head 1 of the rolling machine for different grinding wheel substrates 3, greatly reducing processing costs. In addition, this solution only requires coating and rolling before sintering and processing, which is simple to operate and saves manpower and material resources. Compared with the traditional process, the preparation process of this solution reduces working hours by 20.5% and labor costs by 74.02%.

[0043] In the preferred embodiment, after the grinding wheel base 3 is placed in the profiling groove 2 and rolled, the process further includes: coating the abrasive layer 4 with an adhesive; placing the grinding wheel base 3 in the profiling groove 2 and rolling it so that a new abrasive layer 4 is coated on the outside of the abrasive layer 4; and repeating the above steps a predetermined number of times.

[0044] The thickness of the abrasive layer 4 on the grinding wheel needs to be made according to different requirements. The thickness of each abrasive layer 4 is determined, thereby determining the number of abrasive layers 4.

[0045] In a preferred solution of this embodiment, placing the grinding wheel base 3 into the profiling groove 2 for rolling includes: controlling the pressure between the profiling rolling head 1 and the grinding wheel base 3 at a predetermined pressure.

[0046] Different cutting objects require grinding wheels of different densities. The density of the grinding wheel can be adjusted by controlling the pressure of the contour rolling head 1. There is no need to perform density testing in subsequent processes, which further saves time and labor costs.

[0047] In the preferred embodiment, before applying the adhesive to the edge of the grinding wheel base 3, the process further includes: cleaning the grinding wheel base 3. The cleaning removes residual abrasive particles on the grinding wheel base 3 to ensure the accuracy and tightness of subsequent rolling.

[0048] In the preferred embodiment of this embodiment, the adhesive is an organic resin. Conventional grinding wheel manufacturing methods use a glue-based method to secure the grinding wheel base 3 to the grinding wheel. During production and use, the glue is susceptible to thermal expansion, causing the grinding wheel to crack and break. The glue-based method also contains chemical components, which can have irreversible long-term health effects. This solution uses a resin binder as the bonding medium, fundamentally avoiding this problem and significantly improving the safety and stability of the grinding wheel during production and use.

[0049] In the preferred embodiment of the present invention, the organic resin includes phenolic resin, epoxy resin, and polyimide resin. This embodiment uses phenolic resin, epoxy resin, and polyimide resin as adhesives, which are non-toxic and harmless, and are very friendly to the environment and the human body.

[0050] In a preferred embodiment of the present invention, a pore-forming agent is mixed into the abrasive. The addition of the pore-forming agent can improve the self-sharpening property of the grinding wheel and increase cutting efficiency.

[0051] The present invention also provides an organic coated grinding wheel obtained by the above preparation method, comprising a grinding wheel base 3, multiple abrasive layers 4 and multiple bonding layers, wherein the multiple abrasive layers 4 and the multiple bonding layers are alternately arranged on the outer layer of the grinding wheel base 3.

[0052] In a preferred solution of this embodiment, the adhesive layer is an organic resin.

[0053] In a preferred solution of this embodiment, a pore-forming agent is mixed into the abrasive layer 4 .

[0054] The above embodiments are used to further illustrate the present invention, but the present invention is not limited to these specific embodiments. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be understood to be within the scope of protection of the present invention.

Claims

1. A method for preparing an organic coated grinding wheel, characterized in that: include: Filling abrasive into the profiling groove (2) of the profiling rolling head (1); Applying adhesive to the edge of the grinding wheel base (3); The grinding wheel base (3) is placed in the contoured groove (2) and rolled, so that the edge of the grinding wheel base (3) is coated with an abrasive layer (4).

2. The method for preparing an organic coated grinding wheel according to claim 1, wherein: After placing the grinding wheel base (3) into the contoured groove (2) for rolling, the method further comprises: coating the abrasive layer (4) with the adhesive; Placing the grinding wheel base (3) into the contoured groove (2) and rolling it so that the abrasive layer (4) is coated with a new abrasive layer (4); Repeat the above steps to the predetermined number of times.

3. The method for preparing an organic coated grinding wheel according to claim 1 or 2, wherein: Placing the grinding wheel base (3) into the contoured groove (2) for rolling, comprising: The pressure between the profiling rolling head (1) and the grinding wheel base (3) is controlled at a predetermined pressure.

4. The method for preparing an organic coated grinding wheel according to claim 1 or 2, wherein: Before applying adhesive to the edge of the grinding wheel base (3), the method further includes: The grinding wheel base (3) is cleaned.

5. The method for preparing an organic coated grinding wheel according to claim 1, wherein: The adhesive is an organic resin.

6. The method for preparing an organic coated grinding wheel according to claim 5, wherein: The organic resin includes phenolic resin, epoxy resin and polyimide resin.

7. The method for preparing an organic coated grinding wheel according to claim 1 or 5, characterized in that: The abrasive is mixed with a pore-forming agent.

8. An organic coated grinding wheel obtained by the preparation method according to any one of claims 2 to 7, characterized in that: The invention comprises a grinding wheel base (3), a plurality of abrasive layers (4) and a plurality of bonding layers, wherein the plurality of abrasive layers (4) and the plurality of bonding layers are alternately arranged on the outer layer of the grinding wheel base (3).

9. The organic coated grinding wheel according to claim 8, characterized in that The adhesive layer is an organic resin.

10. The organic coated grinding wheel according to claim 8 or 9, characterized in that The abrasive layer (4) is mixed with a pore-forming agent.

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