High-density grinding wheel with built-in balance mandrel

Abstract

The utility model discloses a high-density grinding wheel with a built-in balance core shaft, which relates to the field of grinding wheels and comprises a circular framework, a grinding wheel disc is fixed on the outer side of the circular framework, at least three embedded grooves are arranged on the grinding wheel disc, and the three embedded grooves are distributed around the circle center of the grinding wheel disc at equal intervals. In the actual operation of the grinding wheel, the weight of the grinding wheel can be increased by increasing the number of the embedded mandrels, and after large-particle grinding materials in a certain area are consumed, the large-particle grinding materials in the certain area can be replaced by the large-particle grinding materials through the weight of the embedded mandrels, so that the large-particle grinding materials in the certain area can be replaced by the large-particle grinding materials in the certain area, and the large-particle grinding materials in the certain area can be replaced by the large-particle grinding materials. The weight of the whole grinding wheel can be balanced, rotation is more stable, the center-of-gravity position can be dispersed due to the fact that the three embedded mandrels are additionally arranged, and stress is more uniform.

Description

Technical Field

[0001] The utility model relates to the field of grinding wheels, in particular to a high-density grinding wheel with a built-in balancing mandrel. Background Art

[0002] Grinding wheels, also known as bonded abrasives, are made by bonding ordinary abrasives into a specific shape (mostly round with a central hole) with a certain strength. They are generally composed of abrasives, a bond, and pores, which are often referred to as the three elements of a bonded abrasive.

[0003] After grinding an object for a period of time, the abrasive in some areas of the existing grinding wheel will be lost due to friction. At this time, the overall weight of the grinding wheel will change, causing jitter and deviation during rotation.

[0004] Therefore, it is necessary to propose a high-density grinding wheel with a built-in balancing mandrel to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a high-density grinding wheel with a built-in balancing mandrel to solve the problem that after grinding an object for a period of time, the abrasive in some areas of the existing grinding wheel will be lost due to friction. At this time, the overall weight of the grinding wheel will change, resulting in jitter and deviation during rotation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-density grinding wheel with a built-in balancing core shaft, comprising a circular skeleton, a grinding wheel disc fixed on the outside of the circular skeleton, an embedded groove on the grinding wheel disc, at least three embedded grooves are provided, and the three embedded grooves are equidistantly distributed around the center of the grinding wheel disc, and there is a certain degree of spacing between each embedded groove, a fitting core shaft is engaged inside the fitting core shaft, an abrasive layer is provided on the outside of the grinding wheel disc, a layer of large-particle abrasive is wrapped on the outside of the grinding wheel disc, the large-particle abrasive and the outside of the abrasive layer are both coated with pigments, and the two pigments are complementary colors.

[0007] Preferably, a counterweight column is provided inside the interlocking core shaft, and the counterweight column is provided inside the abrasive layer.

[0008] Preferably, both ends of the embedded groove are provided with a card slot, the card slot and the embedded groove are connected, both ends of the counterweight column extend out of the abrasive layer, and both ends of the counterweight column are respectively engaged with the inside of the corresponding card slot.

[0009] Preferably, a gap is left between one end of the embedded groove and the outer edge of the grinding wheel disk, and a gap is left between the other end of the embedded groove and the inner ring of the grinding wheel disk.

[0010] Preferably, a central hole is opened in the middle of the top end of the circular skeleton, and the central hole passes through the bottom end of the circular skeleton.

[0011] Preferably, a wear-resistant layer is provided on the outer side of the grinding wheel.

[0012] Preferably, the large-particle abrasive is adhered to the surface of the grinding wheel through a bonding agent.

[0013] Technical effects and advantages of this utility model:

[0014] 1. In the actual operation of the present invention, the weight of the grinding wheel can be increased by adding a chimeric mandrel. When the large-particle abrasive in a certain area is consumed, the weight of the entire grinding wheel can be balanced by the weight of the chimeric mandrel, making the rotation more stable. The addition of three chimeric mandrels can disperse the center of gravity and make the force more uniform.

[0015] 2. Furthermore, when the large-particle abrasive or the wear-resistant layer is consumed, the embedded core shaft will be exposed, which is used to promptly remind personnel to replace the new grinding wheel in time. At the same time, an abrasive layer is provided on the outside of the embedded core shaft. Even if the embedded core shaft leaks out, the object being polished will first come into contact with the abrasive layer, which plays a temporary polishing role and avoids damage to the polished object by the counterweight column. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the high-density grinding wheel with a built-in balancing mandrel of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the central hole of the utility model.

[0018] Figure 3 For this utility model Figure 2 Enlarged schematic diagram of point A in the middle.

[0019] Figure 4 It is a structural schematic diagram of the counterweight column of the utility model.

[0020] In the figure: 1. Circular skeleton; 2. Grinding wheel; 3. Wear-resistant layer; 4. Center hole; 5. Inlaid groove; 6. Embedded core shaft; 7. Counterweight column; 8. Abrasive layer; 9. Slot. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clarify the technical solutions in the embodiments of the present invention; it is clear that the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The utility model provides Figure 1 - Figure 4The high-density grinding wheel with a built-in balancing core shaft shown includes a circular skeleton 1, a grinding wheel disc 2 is fixed on the outside of the circular skeleton 1, an embedded groove 5 is opened on the grinding wheel disc 2, and there are at least three embedded grooves 5, and the three embedded grooves 5 are equidistantly distributed around the center of the grinding wheel disc 2, and the interval between each two embedded grooves 5 is 120 degrees. The inside of the embedded groove 5 is engaged with a mosaic core shaft 6, and the outside of the mosaic core shaft 6 is provided with an abrasive layer 8. The outside of the grinding wheel disc 2 is wrapped with a layer of large-particle abrasive, and the large-particle abrasive is adhered to the surface of the grinding wheel disc 2 through a binder. The large-particle abrasive and the outside of the abrasive layer 8 are coated with pigments, and the two pigments are complementary colors.

[0023] It should be noted that the binder can be a ceramic binder, and the large-particle abrasive can be sand grains. The sand grains are fixed to the outer surface of the grinding wheel disc 2 through the ceramic binder, and the grinding wheel disc 2 and the interlocking core shaft 6 are wrapped. A wear-resistant layer 3 is provided on the outside of the grinding wheel disc 2. When the grinding wheel rotates at high speed, the object can be polished by the large-particle abrasive and the wear-resistant layer 3.

[0024] A counterweight column 7 is provided inside the interlocking core shaft 6 , and the counterweight column 7 is provided inside the abrasive layer 8 . The counterweight column 7 is used to increase the weight of the interlocking core shaft 6 .

[0025] In the actual operation of the present invention, the weight of the grinding wheel can be increased by adding the interlocking core shaft 6. After the large-particle abrasive in a certain area is consumed, the weight of the entire grinding wheel can be balanced by the weight of the interlocking core shaft 6, making the rotation more stable. The addition of three interlocking core shafts 6 can disperse the center of gravity and make the force more uniform.

[0026] Furthermore, when the large-particle abrasive or the wear-resistant layer 3 is consumed, the interlocking core shaft 6 will be exposed, which is used to promptly remind personnel to replace the new grinding wheel in time. At the same time, an abrasive layer 8 is provided on the outside of the interlocking core shaft 6. Even if the interlocking core shaft 6 leaks out, the object to be polished will first contact the abrasive layer 8, which plays a temporary polishing role, thereby avoiding damage to the polished object by the counterweight column 7.

[0027] The outer sides of the large-particle abrasive and the abrasive layer 8 are both coated with pigments, and the two pigments are complementary colors. Through the color contrast, it is easier to remind personnel.

[0028] Both ends of the embedded groove 5 are provided with a card slot 9, the card slot 9 is connected to the embedded groove 5, both ends of the counterweight column 7 extend out of the abrasive layer 8, and the two ends of the counterweight column 7 are respectively engaged in the corresponding card slot 9, which is convenient for production and installation.

[0029] There is a gap between one end of the embedded groove 5 and the outer edge of the grinding wheel 2, and there is a gap between the other end of the embedded groove 5 and the inner ring of the grinding wheel 2, leaving space for grinding.

[0030] A central hole 4 is formed in the middle of the top of the circular frame 1 , and the central hole 4 passes through the bottom of the circular frame 1 .

Claims

1. A high-density grinding wheel with a built-in balancing mandrel, comprising a circular skeleton (1), characterized in that: A grinding wheel (2) is fixed on the outer side of the circular skeleton (1), and an embedded groove (5) is provided on the grinding wheel (2). There are at least three embedded grooves (5), and the three embedded grooves (5) are distributed at equal distances around the center of the grinding wheel (2). The interval between two embedded grooves (5) is 120 degrees. The embedded grooves (5) are clamped with a fitting core shaft (6) inside, and an abrasive layer (8) is provided on the outer side of the fitting core shaft (6). The outer side of the grinding wheel (2) is wrapped with a layer of large-particle abrasive, and the outer sides of the large-particle abrasive and the abrasive layer (8) are both coated with pigments, and the two pigments are complementary colors.

2. The high-density grinding wheel with a built-in balancing mandrel according to claim 1, characterized in that: A counterweight column (7) is provided inside the embedded core shaft (6), and the counterweight column (7) is provided inside the abrasive layer (8).

3. The high-density grinding wheel with a built-in balancing mandrel according to claim 2, characterized in that: Both ends of the embedded groove (5) are provided with a clamping groove (9), the clamping groove (9) and the embedded groove (5) are communicated, both ends of the counterweight column (7) extend out of the abrasive layer (8), and the two ends of the counterweight column (7) are respectively clamped in the inside of the corresponding clamping groove (9).

4. The high-density grinding wheel with a built-in balancing mandrel according to claim 3, characterized in that: A gap is left between one end of the embedded groove (5) and the outer edge of the grinding wheel disc (2), and a gap is left between the other end of the embedded groove (5) and the inner ring of the grinding wheel disc (2).

5. The high-density grinding wheel with a built-in balancing mandrel according to claim 1, characterized in that: A central hole (4) is provided in the middle of the top end of the circular skeleton (1), and the central hole (4) passes through the bottom end of the circular skeleton (1).

6. The high-density grinding wheel with a built-in balancing mandrel according to claim 1, characterized in that: A wear-resistant layer (3) is provided on the outer side of the grinding wheel disc (2).

7. The high-density grinding wheel with a built-in balancing mandrel according to claim 1, characterized in that: The large-particle abrasive is adhered to the surface of the grinding wheel (2) through a bonding agent.

Images