Centerless grinding wheel base body structure

Abstract

The utility model relates to a centerless grinding wheel base body structure which effectively solves the problems that in the grinding process, a large amount of grinding heat can be generated between a grinding wheel and a workpiece, the heat dissipation performance of a traditional base body is limited, the heat cannot be dissipated in time, the local temperature of the grinding wheel is too high, heat deformation of the grinding wheel is caused, and the machining precision is further affected. And safety accidents such as grinding wheel breakage can even be caused. According to the centerless grinding wheel base body structure, the positioning ring and the fixing piece are arranged in a matched mode, under the condition that heat is generated in the grinding process of the grinding wheel, the heat generated by the grinding wheel can be conveyed outwards in time by means of the fixing piece, and in the rapid rotating process of the grinding wheel, the grinding wheel is prevented from being damaged. Heat stored in the supporting cylinder can be dissipated outwards through the cooling fins, then heat generated by the grinding wheel is dissipated in time through the supporting cylinder and the cooling fins by means of heat conduction between metal, and the situation that heat deformation of the grinding wheel is caused by too much heat is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of grinding wheel technology, specifically relating to a centerless grinding wheel base structure. Background Technology

[0002] In the field of machining, centerless grinding is a widely used high-precision machining process used to grind cylindrical workpieces to obtain good dimensional accuracy and surface quality. The centerless grinding wheel is a key component in the centerless grinding process, and its base structure directly affects the overall performance and machining effect of the grinding wheel.

[0003] Traditional centerless grinding wheel substrates typically employ a relatively simple structural design, generally made of metal materials such as aluminum alloys or steel. The grinding wheel is mainly composed of abrasive and bonding agent, manufactured using different bonding methods. However, with the continuous improvement of processing accuracy, efficiency, and grinding wheel life requirements in modern manufacturing, the traditional substrate structure has revealed many limitations. During the grinding process, a large amount of grinding heat is generated between the grinding wheel and the workpiece. The heat dissipation performance of traditional substrates is limited, and the heat cannot be dissipated in time, which can easily cause the local temperature of the grinding wheel to become too high, leading to thermal deformation of the grinding wheel, further affecting processing accuracy, and even potentially causing safety accidents such as grinding wheel breakage. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a centerless grinding wheel base structure. The centerless grinding wheel base structure, through the cooperation of the fixing plate and the positioning ring, can quickly guide the heat generated by grinding inside the grinding wheel during the grinding wheel's operation, and quickly transfer the heat outward with the help of the support cylinder and heat sink, thereby reducing the thermal deformation of the grinding wheel due to excessive local temperature.

[0005] A centerless grinding wheel base structure includes a support cylinder, a positioning ring sleeved in the middle of the outer surface of the support cylinder, a plurality of fixing plates fixedly connected to the outer surface of the positioning ring, fixing rings threadedly connected to both sides of the outer surface of the support cylinder at the positioning ring, a grinding wheel provided on the outer surface of the positioning ring, grinding plates fixedly connected to both sides of the outer surface of the grinding wheel, and a plurality of heat dissipation fins fixedly connected to both sides of the outer surface of the support cylinder.

[0006] Preferably, a limiting ring is fixedly connected to the outer surface of the fixing ring, and the outer surface of the limiting ring is provided with multiple positioning holes.

[0007] Preferably, a positioning rod is threaded through the inner wall of the positioning hole, and an insertion hole adapted to the positioning rod is opened on the outer surface of the grinding wheel.

[0008] Preferably, one end of the positioning rod that protrudes from the limiting ring is inserted into the inner wall of the insertion hole, so that the grinding wheel is securely connected between the two limiting rings.

[0009] Preferably, the inner wall of the grinding wheel is provided with a fixing groove that matches the fixing plate, and the inner wall of the fixing groove is fixedly connected to the outer surface of the fixing plate.

[0010] Preferably, a bushing is fixedly connected to the middle of the outer surface of the support cylinder, and a fixing hole is provided at the end of the bushing.

[0011] The beneficial effects of the above technical solution are as follows:

[0012] The centerless grinding wheel base structure, through the cooperation of the positioning ring and the fixing plate, can promptly transfer the heat generated by the grinding wheel to the outside during the grinding process with the help of the fixing plate. Furthermore, during the rapid rotation of the grinding wheel, the heat stored in the support cylinder can be dissipated to the outside with the help of the heat sink. In addition, through the heat conduction between the metals, the heat generated by the grinding wheel is dissipated in a timely manner through the support cylinder and the heat sink, reducing the possibility of excessive heat causing thermal deformation of the grinding wheel. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall installation structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the positioning rod insertion structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the installation structure of the abrasive disc of this utility model;

[0016] Figure 4 This is a schematic diagram of the exploded structure of the support cylinder of this utility model.

[0017] In the diagram: 1. Support cylinder; 2. Positioning ring; 3. Fixing plate; 4. Fixing ring; 5. Limiting ring; 6. Positioning hole; 7. Positioning rod; 8. Grinding wheel; 9. Fixing groove; 10. Grinding plate; 11. Heat sink; 12. Bushing; 13. Fixing hole; 14. Insertion hole. Detailed Implementation

[0018] The foregoing and other technical contents, features and effects of this utility model are described in conjunction with the appendix below. Figures 1 to 4 The embodiments are described in detail below.

[0019] This embodiment provides a centerless grinding wheel base structure, as shown in the attached figure, including a support cylinder 1. A positioning ring 2 is sleeved on the middle of the outer surface of the support cylinder 1. Multiple fixing plates 3 are fixedly connected to the outer surface of the positioning ring 2. The support cylinder 1 serves as the basic skeleton of the entire structure, providing a platform for the installation and support of other components. Its outer surface is designed to connect and fix multiple key components, such as the positioning ring 2, fixing rings 4, heat sink 11, and bushing 12, ensuring the integrity and stability of the overall structure and enabling the components to work together to achieve the normal operation and function of the grinding wheel 8. The positioning ring 2 is sleeved on the middle of the outer surface of the support cylinder 1, playing an important role in positioning and fixing the grinding wheel 8. The multiple fixing plates 4 fixedly connected to its outer surface cooperate with the fixing grooves 9 on the inner sidewall of the grinding wheel 8 to achieve precise positioning of the grinding wheel 10 on the support cylinder 1. Precise positioning and secure connection prevent axial or radial displacement of the grinding wheel 8 during high-speed rotation, ensuring the accuracy and stability of the grinding operation. In terms of heat conduction, the fixing plate 3 is fixed to the positioning ring 2, allowing the heat generated by the grinding wheel 8 to be conducted to the positioning ring 2 through the fixing plate 3, and then dissipated outward with the help of the support cylinder 1 and the heat sink 11. It is a key connection link in the heat conduction path, which helps to reduce the risk of thermal deformation of the grinding wheel 8 due to heat accumulation. The fixing plate 3 is the direct medium for heat transfer between the grinding wheel 8 and the support cylinder 1. Due to its good metal thermal conductivity, it can quickly conduct the heat generated by the grinding wheel during the grinding process to the positioning ring 2 and the support cylinder 1, accelerate the heat dissipation speed, effectively prevent the grinding wheel 8 from local overheating and deformation, extend the service life of the grinding wheel 8, and ensure the grinding quality.

[0020] On both sides of the positioning ring 2, the outer surface of the support cylinder 1 is threaded with fixing rings 4. Limiting rings 5 ​​are fixedly connected to the outer surface of the fixing rings 4. Multiple positioning holes 6 are formed on the outer surface of the limiting rings 5. Positioning rods 7 are threaded through the inner walls of the positioning holes 6. An insertion hole 14, matching the positioning rod 7, is formed on the outer surface of the grinding wheel 8. One end of the positioning rod 7, protruding from the limiting ring 5, is inserted into the inner wall of the insertion hole 14, thus securing the grinding wheel 8 between the two limiting rings 5. The fixing rings 4 and positioning rings 2 work together to tightly clamp the grinding wheel 8 in the middle. The position of the fixing rings 4 on the support cylinder 1 can be adjusted by rotating them, thereby enabling the tightening and loosening of the grinding wheel 8, facilitating its installation and replacement. The limiting rings 5 ​​fixedly connected to the outer surface of the fixing rings 4 provide an installation base for the positioning rods 6, further enhancing the fixing effect on the grinding wheel 8 and preventing the grinding wheel 8 from snagging during operation. To ensure the stability and safety of the grinding process, multiple positioning holes 6 allow the positioning rod 7 to be inserted at specific angles and positions, engaging with the insertion hole 14 on the outer surface of the grinding wheel 8. This provides precise positioning and fixation of the grinding wheel 8 from multiple directions, effectively preventing wobbling or displacement of the grinding wheel 8 due to uneven force during high-speed rotation, thus ensuring the precision and surface quality of the grinding process. The positioning rod 7 is threaded through the positioning hole 6, with one end inserted into the insertion hole 14 on the outer surface of the grinding wheel 8 and the other end located outside the limiting ring 5. During operation, the positioning rod 7, through its tight engagement with the insertion hole 14, firmly locks the grinding wheel 8 between the two limiting rings 5, preventing axial or radial displacement of the grinding wheel during rotation. Its fastening force effectively resists various forces generated during the grinding process, ensuring the relative position between the grinding wheel 8 and the support cylinder 1 remains stable, thereby ensuring the stability of grinding precision and processing quality.

[0021] The outer surface of the positioning ring 2 is provided with a grinding wheel 8. The inner sidewall of the grinding wheel 8 is provided with a fixing groove 9 that matches the fixing plate 3. The inner sidewall of the fixing groove 9 is fixedly connected to the outer surface of the fixing plate 3. Grinding discs 10 are fixedly connected to both sides of the outer surface of the grinding wheel 8. The grinding wheel 8 is the core component for realizing grinding. Through high-speed rotation, the cutting action of the grinding wheel 8 removes material from the surface of the workpiece to achieve the required processing accuracy and surface roughness. The fixing groove 9 is opened on the inner sidewall of the grinding wheel 8 and matches the shape and size of the fixing plate to form a stable connection structure. The fixing groove 9 is connected to the fixing plate 3. The friction and mechanical interlocking between the grinding wheels 8 firmly fix the grinding wheel 8 to the positioning ring, ensuring that the grinding wheel 8 will not be displaced relative to the support cylinder 1 under high-speed rotation and grinding force, providing a reliable structural foundation for precision grinding operations. The grinding discs 10 are fixedly connected to both sides of the outer surface of the grinding wheel and are of different roughness grades. The grinding wheel 8 drives the grinding discs 10 to rotate rapidly, so that the grinding discs 10 on the side can also process grinding requirements of different roughness. Grinding discs 10 of different grit size and material can be selected to obtain the corresponding surface quality and processing accuracy.

[0022] Multiple heat sinks 11 are fixedly connected to both sides of the outer surface of the support cylinder 1. A bushing 12 is fixedly connected to the middle of the outer surface of the support cylinder 1, and a fixing hole 13 is opened at the end of the bushing 12. The main function of the heat sinks 11 is to increase the heat dissipation surface area of ​​the support cylinder 1 and improve the heat dissipation efficiency. During the high-speed grinding process of the grinding wheel 8, the heat generated by the grinding wheel is conducted to the support cylinder 1 through the fixing plate 3 and the positioning ring 2. The heat sinks 11 use their large surface area to exchange heat with the surrounding air, quickly dissipating the heat to the surrounding environment, reducing the temperature of the support cylinder 1, and thus reducing the heat transferred to the grinding wheel 8, effectively preventing the grinding wheel 8 from overheating. The deformation ensures the normal working performance and service life of the grinding wheel 8, and improves the accuracy and stability of grinding. The fixing hole 13 at the end of the bushing 12 is used to connect with the external drive shaft or other transmission components. The bushing 12 acts as a transition connection, so that the support cylinder 1 can be matched with the power source or transmission system to realize the rotation drive of the grinding wheel 8. Changing the size, shape and fixing hole specifications of the bushing can ensure the connection accuracy and reliability between the support cylinder 1 and the external drive components, and ensure that the power can be transmitted smoothly and effectively to the grinding wheel, so that the grinding wheel can rotate at the predetermined speed and direction to meet the process requirements of grinding.

[0023] In summary, the usage steps of this centerless grinding wheel base structure are as follows:

[0024] 1. First, during the manufacturing process of the grinding wheel 8, the end of the grinding wheel and the bonding agent can be bonded to the surface of the fixing plate 3 and the positioning ring 2. Then, the grinding wheel 8 is sintered or processed. At the same time, grinding discs 10 with different roughness are fixed to the surface of the grinding wheel 8. After the manufacturing is completed, the surface of the grinding wheel 8 is processed, and the insertion hole 14 is processed.

[0025] 2. During use, first remove the fixing ring 4, then the positioning ring 2 can drive the grinding wheel 8 to be installed on the surface of the support cylinder 1. Then, fix the fixing ring 4 and the limiting ring 5 again with threads. After fixing, the positioning rod 7 can be inserted into the positioning hole 6, so that the end of the positioning rod 7 is inserted into the insertion hole 14.

[0026] 3. The device can be installed on an external drive shaft or other transmission component by means of the bushing 12 and the fixing hole 13, so that the external equipment can drive the device to rotate quickly, and then the grinding operation can be performed by means of the grinding wheel 8 and the grinding disc 10.

[0027] The above description is only for illustrating the present utility model. It should be understood that the present utility model is not limited to the above embodiments, and various modifications that conform to the concept of the present utility model are within the protection scope of the present utility model.

Claims

1. A centerless grinding wheel base structure, comprising a support cylinder (1), characterized in that: A positioning ring (2) is sleeved in the middle of the outer surface of the support cylinder (1). A plurality of fixing plates (3) are fixedly connected to the outer surface of the positioning ring (2). Fixing rings (4) are threadedly connected to both sides of the outer surface of the support cylinder (1) on the positioning ring (2). A grinding wheel (8) is provided on the outer surface of the positioning ring (2). Abrasive plates (10) are fixedly connected to both sides of the outer surface of the grinding wheel (8). A plurality of heat sinks (11) are fixedly connected to both sides of the outer surface of the support cylinder (1).

2. The centerless grinding wheel substrate structure according to claim 1, characterized in that: The outer surface of the fixed ring (4) is fixedly connected to the limiting ring (5), and the outer surface of the limiting ring (5) is provided with multiple positioning holes (6).

3. The centerless grinding wheel substrate structure according to claim 2, characterized in that: The inner wall of the positioning hole (6) is threaded with a positioning rod (7), and the outer surface of the grinding wheel (8) is provided with an insertion hole (14) that matches the positioning rod (7).

4. The centerless grinding wheel substrate structure according to claim 3, characterized in that: The positioning rod (7) extends through one end of the limiting ring (5) and is inserted into the inner wall of the insertion hole (14), so that the grinding wheel (8) is securely connected between the two limiting rings (5).

5. The centerless grinding wheel substrate structure according to claim 1, characterized in that: The inner wall of the grinding wheel (8) is provided with a fixing groove (9) that is adapted to the fixing plate (3), and the inner wall of the fixing groove (9) is fixedly connected to the outer surface of the fixing plate (3).

6. The centerless grinding wheel substrate structure according to claim 1, characterized in that: A bushing (12) is fixedly connected to the middle of the outer surface of the support cylinder (1), and a fixing hole (13) is provided at the end of the bushing (12).

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