Electromagnetic replaceable grinding wheel

Abstract

This invention belongs to the field of grinding wheel processing technology and provides an electromagnetic replaceable grinding wheel, comprising: a main body, the main body including several middle cover plates and several large cover plates, each of which is provided with a liquid inlet hole for receiving cooling lubricant; a buffer assembly; an electromagnetic fixing assembly and a grinding wheel; and a side grinding wheel assembly. Compared with the prior art, the advantages of this invention are that it is electrically connected to the electrical control system of an external grinding machine through a first electromagnetic buckle and a second electromagnetic buckle. The first electromagnetic buckle and the second electromagnetic buckle respectively electromagnetically attract the first grinding wheel and the second grinding wheel, injecting cooling lubricant through the liquid inlet holes on the side middle cover plates. The grinding machine drive device rotates at high speed, and the centrifugal force generated by the high-speed rotation of the grinding wheel causes the cooling lubricant to be evenly thrown out from the liquid outlet hole, achieving efficient cooling and lubrication of the grinding surface, while removing metal chips generated during grinding, preventing the chips from scratching the machined surface of the workpiece, and significantly improving the grinding surface quality and machining accuracy.

Description

Technical Field

[0001] This invention belongs to the field of grinding wheel processing technology, and specifically relates to an electromagnetic replaceable grinding wheel. Background Technology

[0002] As a core machining tool in mechanical grinding, mold making, and precision parts production, the efficiency of grinding wheel disassembly and replacement, as well as its cooling and lubrication effects, directly determine the production efficiency, workpiece machining accuracy, and surface quality of the grinding process. With the continuous increase in demand for high-precision, high-efficiency, and mass production in modern manufacturing, the technical shortcomings of traditional grinding wheels in practical applications are becoming increasingly apparent, making them unsuitable for the production needs of high-end precision machining.

[0003] Currently, there are significant technical shortcomings in the disassembly and replacement of grinding wheels: traditional grinding wheels mostly adopt an integrated structure, or fix the grinding wheel to the base through mechanical snap-fit, threaded locking, or bolt fastening. When machining workpieces of different sizes, the entire grinding wheel needs to be disassembled and replaced, making the entire replacement process cumbersome and time-consuming, which greatly reduces the production efficiency of batch processing. At the same time, under the conditions of long-term high-frequency disassembly and high-speed rotary grinding, mechanical fixing structures are prone to problems such as thread stripping, snap-fit ​​wear, and increased clearance.

[0004] The existing grinding wheels also have prominent technical defects in the cooling and lubrication process, making it difficult to achieve efficient and precise cooling and lubrication in the grinding area: Traditional grinding wheels mostly use external pipeline spraying for cooling and lubrication. During the grinding process, the coolant can only be sprayed from the outside of the grinding wheel to the surface of the workpiece, making it difficult to accurately penetrate into the core grinding contact area between the grinding wheel and the workpiece, and thus failing to effectively cool and lubricate the grinding heat points. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing an electromagnetic replaceable grinding wheel that is simple in structure, has good stability, and high working efficiency.

[0006] The objective of this invention can be achieved through the following technical solution: an electromagnetic replaceable grinding wheel is proposed, characterized by comprising: The main body includes several middle cover plates and several large cover plates. Each of the middle cover plates and the large cover plates is provided with a liquid inlet hole for receiving coolant and lubricant. A buffer assembly includes a first buffer ring and a second buffer ring, both sleeved on the outer ring of the main body. A large cover plate abuts against both sides of the first buffer ring. The second buffer ring is symmetrically arranged on both sides of the first buffer ring and abuts against the large cover plate. The end of the second buffer ring away from the large cover plate abuts against the middle cover plate. The first buffer ring and the second buffer ring respectively form an internal flow channel with the main body. The liquid inlet hole communicates with the internal flow channel. Both the first buffer ring and the second buffer ring are provided with a first buffer hole that communicates with the internal flow channel. The system includes an electromagnetic fixing assembly and a grinding wheel. The electromagnetic fixing assembly comprises a first electromagnetic buckle and a second electromagnetic buckle. The first electromagnetic buckle is fixedly connected to the outer ring of the first buffer ring, and the second electromagnetic buckle is connected to the outer ring of the second buffer ring. Both the first and second electromagnetic buckles are provided with flow diversion holes. The grinding wheel comprises a first grinding wheel and a second grinding wheel. The first grinding wheel is detachably connected to the first electromagnetic buckle, and the second grinding wheel is detachably connected to the second electromagnetic buckle. Both the first and second grinding wheels are provided with liquid outlet holes. When the first and second grinding wheels rotate, the cooling lubricant can flow out from the liquid outlet holes. A side grinding wheel assembly is connected to the second electromagnetic buckle and abuts against the liquid inlet hole to restrict the flow of coolant and lubricant from the liquid inlet hole.

[0007] In the aforementioned electromagnetic replaceable grinding wheel, the buffer assembly further includes an annular flow channel connected to the inner ring of the first buffer ring, and a second buffer hole is provided on the annular flow channel, the second buffer hole communicating with the internal flow channel.

[0008] In the aforementioned electromagnetic replaceable grinding wheel, sealing rings are embedded in the mating surfaces of the first grinding wheel and the first electromagnetic buckle, and the mating surfaces of the second grinding wheel and the second electromagnetic buckle. The sealing rings are arranged around the outer periphery of the connection between the diversion hole and the liquid outlet hole.

[0009] In the aforementioned electromagnetic replaceable grinding wheel, both the first electromagnetic buckle and the second electromagnetic buckle include a protrusion and a connecting portion. The protrusion is symmetrically arranged on both sides of the connecting portion and forms a groove in the connecting portion. The first grinding wheel or the second grinding wheel is engaged in the groove and abuts against the connecting portion. The diversion hole is provided on the protrusion.

[0010] In the aforementioned electromagnetic replaceable grinding wheel, the protrusion is made of an insulator, and the connecting part is made of a conductor.

[0011] In the aforementioned electromagnetic replaceable grinding wheel, the first buffer hole and the second buffer hole are arranged along the axial direction of the main body, and the diversion hole and the liquid outlet hole are arranged along the radial direction of the main body.

[0012] In the aforementioned electromagnetic replaceable grinding wheel, the main body is provided with several detection rings, the outer rings of the detection rings respectively forming the internal flow channel with the first buffer ring or the annular channel, and the detection rings are provided with temperature detectors and pressure detectors. The temperature detectors are used to detect the surface temperature of the first grinding wheel or the second grinding wheel, and the pressure detectors are used to detect the pressure between the first grinding wheel or the second grinding wheel and the workpiece.

[0013] In the aforementioned electromagnetic replaceable grinding wheel, the side grinding wheel assembly includes a third electromagnetic buckle and a third grinding wheel. The third electromagnetic buckle is sleeved on the main body and abuts against the liquid inlet hole; the third grinding wheel is detachably connected to the third electromagnetic buckle.

[0014] In the aforementioned electromagnetic replaceable grinding wheel, the side grinding wheel assembly further includes a third buffer layer. The outer ring of the third buffer layer is fixedly connected to the third electromagnetic buckle. The third buffer layer is provided with air holes for storing cooling air.

[0015] In the aforementioned electromagnetic replaceable grinding wheel, the side grinding wheel assembly further includes a small cover plate, which is connected to the side wall of the third buffer layer and abuts against the inner ring of the third electromagnetic buckle.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention provides an electromagnetic replaceable grinding wheel that is electrically connected to the electrical control system of an external grinding machine through a first electromagnetic buckle and a second electromagnetic buckle. The first electromagnetic buckle and the second electromagnetic buckle respectively electromagnetically attract the first grinding wheel and the second grinding wheel. The external high-pressure sealing joint is connected to the liquid inlet hole on the middle cover plate on both sides and injects cooling lubricant. Then the grinding machine drives the entire device to rotate at high speed. The centrifugal force generated by the high-speed rotation of the grinding wheel causes the cooling lubricant to be continuously transported along the internal flow channel, the first buffer hole, and the diversion hole in sequence, and finally evenly thrown out from the liquid outlet hole. By throwing the cooling lubricant out from the inside of the device, efficient cooling and lubrication of the grinding surface is achieved, while taking away the metal chips generated by grinding, avoiding the chips from scratching the machined surface of the workpiece, and greatly improving the grinding surface quality and machining accuracy.

[0017] (2) The connecting part is made of a conductor, which can form a stable closed electromagnetic field after being energized, and generate a strong electromagnetic attraction. It is the core functional carrier for realizing the electromagnetic adsorption and fixation of the grinding wheel, and ensures the stability of the grinding wheel under high-speed rotation and grinding stress. The protrusion is made of an insulator, which can form an insulating protection for the conductive structure of the connecting part, and prevent the coolant and lubricant from seeping in and causing a short circuit.

[0018] (3) By setting up a detection ring, a temperature detector and a pressure detector are installed on the detection ring. The temperature detector can collect the real-time temperature of the grinding working surface of the first grinding wheel or the second grinding wheel, and the pressure detector can collect the grinding contact pressure between the grinding wheel and the workpiece in real time. This provides accurate data support for operators to adjust grinding parameters and judge the operating status of the equipment, thereby improving the safety of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an electromagnetic replaceable grinding wheel according to the present invention; Figure 2 This is a schematic diagram of the installation structure of the first electromagnetic buckle, the second electromagnetic buckle, and the middle cover plate; Figure 3 This is a schematic diagram of the installation structure of the first buffer ring, the second buffer ring, and the middle cover plate; Figure 4 This is a schematic diagram of the installation structure of the first buffer ring and the annular flow channel; Figure 5 This is a schematic diagram of the installation structure of the detection ring and the first buffer ring; Figure 6 This is a schematic diagram of the installation structure of the side grinding wheel assembly; Figure 7 This is a schematic diagram of the installation structure of the small buffer ring and the third electromagnetic buckle.

[0020] In the diagram, 1 is the main body; 10 is the middle cover plate; 100 is the liquid inlet; 11 is the large cover plate; 12 is the detection ring; 120 is the temperature detector; and 121 is the pressure detector. 2. Buffer assembly; 20. First buffer ring; 200. Internal flow channel; 201. First buffer hole; 21. Second buffer ring; 22. Annular flow channel; 220. Second buffer hole; 3. Electromagnetic fixing assembly; 30. First electromagnetic buckle; 300. Diversion hole; 301. Protrusion; 302. Connecting part; 303. Groove; 31. Second electromagnetic buckle; 4. Grinding wheel; 40. First grinding wheel; 400. Liquid outlet; 41. Second grinding wheel; 5. Side grinding wheel assembly; 50. Third electromagnetic buckle; 51. Third grinding wheel; 52. Third buffer layer; 520. Air hole; 53. Small cover plate. Detailed Implementation

[0021] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of the present invention. However, the present invention is not limited to these embodiments.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0023] This invention provides an electromagnetic replaceable grinding wheel, comprising: a main body 1, the main body 1 including several middle cover plates 10 and several large cover plates 11, each of the middle cover plates 10 and the large cover plates 11 being provided with a liquid inlet hole 100 for receiving coolant and lubricating fluid; and a buffer assembly 2, the buffer assembly 2 including a first buffer ring 20 and a second buffer ring 21 both sleeved on the outer ring of the main body 1, the large cover plates 11 abutting against both sides of the first buffer ring 20, the second buffer ring 21 being symmetrically arranged on both sides of the first buffer ring 20 and abutting against the large cover plates 11, with the end of the second buffer ring 21 away from the large cover plate 11 abutting against the middle cover plate 10, the first buffer ring 20 and the second buffer ring 21 respectively forming an internal flow channel 200 with the main body 1, the liquid inlet hole 100 communicating with the internal flow channel 200, and each of the first buffer ring 20 and the second buffer ring 21 being provided with a first buffer ring 20 communicating with the internal flow channel 200. The device includes a buffer hole 201; an electromagnetic fixing assembly 3 and a grinding wheel 4. The electromagnetic fixing assembly 3 includes a first electromagnetic buckle 30 and a second electromagnetic buckle 31. The first electromagnetic buckle 30 is fixedly connected to the outer ring of the first buffer ring 20, and the second electromagnetic buckle 31 is connected to the outer ring of the second buffer ring 21. Both the first electromagnetic buckle 30 and the second electromagnetic buckle 31 are provided with diversion holes 300. The grinding wheel 4 includes a first grinding wheel 40 and a second grinding wheel 41. The first grinding wheel 40 is detachably connected to the first electromagnetic buckle 30, and the second grinding wheel 41 is detachably connected to the second electromagnetic buckle 31. Both the first grinding wheel 40 and the second grinding wheel 41 are provided with liquid outlet holes 400. When the first grinding wheel 40 and the second grinding wheel 41 rotate, the cooling lubricant can flow out from the liquid outlet holes 400. A side grinding wheel 4 assembly is connected to the second electromagnetic buckle 31 and abuts against the liquid inlet hole 100 to restrict the flow of cooling lubricant from the liquid inlet hole 100.

[0024] like Figures 1 to 7As shown, the main body 1 is connected to the drive shaft of the external grinding wheel 4 machine. The first electromagnetic buckle 30 and the second electromagnetic buckle 31 are electrically connected to the electrical control system of the external grinding wheel 4 machine. When powered on, the first electromagnetic buckle 30 and the second electromagnetic buckle 31 can generate electromagnetic attraction, which can detachably attract and fix the first grinding wheel 40 and the second grinding wheel 41 to the outer ring of the corresponding electromagnetic buckle, replacing the traditional mechanical buckle or threaded fixing structure, realizing the quick installation and removal of the grinding wheel 4. After the power is turned off, the electromagnetic attraction disappears, and different specifications of grinding wheels 4 can be quickly replaced, improving the applicability of the device, simplifying the grinding wheel 4 replacement process, saving time and reducing the difficulty of operation. Then, the side grinding wheel 4 assembly is removed from the main body 1. The external high-pressure sealing joint is connected to the liquid inlet hole 100 on the two side middle cover plates 10 and coolant is injected to inject coolant into the internal flow channel 200. After the coolant is injected, the side grinding wheel 4 assembly is reinstalled. Install the device and press it firmly against the inlet hole 100 to prevent the cooling lubricant from flowing out of the inlet hole 100, thereby increasing the airtightness and stability of the structure. By setting the first buffer ring 20 and the second buffer ring 21, the vibration generated by the liquid during the ejection can be reduced, avoiding the positioning deviation of the grinding wheel 4 and the appearance of grinding defects on the workpiece surface caused by the vibration, thus improving the processing stability. Subsequently, the grinding wheel 4 drives the entire device to rotate at high speed. The centrifugal force generated by the high-speed rotation of the grinding wheel 4 causes the cooling lubricant to be continuously transported along the internal flow channel 200, the first buffer hole 201, and the diversion hole 300 in sequence, and finally evenly ejected from the outlet hole 400 on the first grinding wheel 40 and the second grinding wheel 41. By ejecting the cooling lubricant from inside the device, efficient cooling and lubrication of the grinding surface is achieved, while taking away the metal chips generated during grinding, avoiding the chips from scratching the machined surface of the workpiece, and greatly improving the grinding surface quality and processing accuracy.

[0025] The buffer assembly 2 also includes an annular flow channel 22, which is connected to the inner ring of the first buffer ring 20. A second buffer hole 220 is provided on the annular flow channel 22, which communicates with the internal flow channel 200.

[0026] like Figure 4 As shown, the diameter of the first grinding wheel 40 is larger than that of the second grinding wheel 41, and the distance between the liquid outlet hole 400 on the first grinding wheel 40 and the internal flow channel 200 is larger than that between the liquid outlet hole 400 on the second grinding wheel 41 and the internal flow channel 200. The centrifugal force generated by the high-speed rotation of the grinding wheel 4 causes the cooling lubricant in the inner ring of the first grinding wheel 40 to be continuously transported along the internal flow channel 200, the second buffer hole 220, the first buffer hole 201, and the diversion hole 300 in sequence, and finally thrown out through the liquid outlet hole 400 on the first grinding wheel 40. By increasing the annular flow channel 22, the impact force of the cooling lubricant on the internal structure due to centrifugal force is reduced, the vibration of the grinding wheel 4 during operation is reduced, and the stability of the structure is improved.

[0027] Sealing rings are embedded in the mating surfaces of the first grinding wheel 40 and the first electromagnetic buckle 30, and the mating surfaces of the second grinding wheel 41 and the second electromagnetic buckle 31. The sealing rings are arranged around the outer periphery of the connection between the diversion hole 300 and the liquid outlet hole 400.

[0028] like Figure 2 As shown, when the first electromagnetic buckle 30 or the second electromagnetic buckle 31 is energized and adsorbs and fixes the first grinding wheel 40 or the second grinding wheel 41, the sealing ring (not shown in the figure) undergoes elastic deformation under the pressing action of electromagnetic attraction, completely filling the tiny machining gap between the grinding wheel 4 and the electromagnetic buckle mating surface, forming a sealed high-pressure sealing structure, preventing high-pressure cooling lubricant from leaking from the mating gap, ensuring the stability of the liquid supply pressure of the internal flow channel 200, and further enhancing the tightness of the mating between the grinding wheel 4 and the electromagnetic buckle, preventing the grinding wheel 4 from shifting during high-speed rotation, reducing component wear, and improving the stability of the device operation.

[0029] Both the first electromagnetic buckle 30 and the second electromagnetic buckle 31 include a protrusion 301 and a connecting portion 302. The protrusion 301 is symmetrically arranged on both sides of the connecting portion 302 and forms a groove 303 in the connecting portion 302. The first grinding wheel 40 or the second grinding wheel 41 is engaged in the groove 303 and abuts against the connecting portion 302. The diversion hole 300 is provided on the protrusion 301.

[0030] like Figure 2 As shown, the protrusion 301 of the magnetic buckle and the connecting part 302 form an annular groove, which provides a two-way limiting reference for the grinding wheel 4 in both radial and axial directions. When installing the grinding wheel 4, it can be directly snapped into the groove to complete the pre-positioning without the need for repeated manual calibration of coaxiality, which greatly improves the installation efficiency of the grinding wheel 4. At the same time, the limiting structure of the groove can prevent radial and axial movement when the grinding wheel 4 rotates at high speed, ensuring the coaxial accuracy of the grinding process. After being powered on, the connecting part 302 generates a strong electromagnetic attraction force, which firmly attracts and fixes the grinding wheel 4 to the mating surface in the groove, further enhancing the stability of the installation.

[0031] The protrusion 301 is made of an insulator, and the connecting part 302 is made of a conductor.

[0032] Preferably, the connecting part 302 is made of a conductive material, which can form a stable closed electromagnetic field after being energized, generating a strong electromagnetic attraction. It is the core functional carrier for realizing the electromagnetic adsorption and fixation of the grinding wheel 4, ensuring the installation stability of the grinding wheel 4 under high-speed rotation and grinding stress. The protrusion 301 is made of an insulating material, which can form an insulating protection for the conductive structure of the connecting part 302, preventing the seepage of coolant and lubricant and causing short circuits, preventing electric sparks during grinding, and improving the safety of the device operation.

[0033] The first buffer hole 201 and the second buffer hole 220 are arranged along the axial direction of the main body 1, and the diversion hole 300 and the liquid outlet hole 400 are arranged along the radial direction of the main body 1.

[0034] like Figure 2 and Figure 3 As shown, when the grinding wheel 4 machine drive device rotates at high speed, the cooling lubricant in the internal flow channel 200 can be evenly delivered to the radially arranged diversion hole 300 through the first buffer hole 201 and the second buffer hole 220 arranged along the axial direction. The cooling lubricant is then delivered to the outlet hole 400 through the diversion hole 300, and the liquid is thrown out through the outlet hole 400, accurately reaching the grinding working surface on the radial outer side of the grinding wheel 4. This greatly improves the liquid output efficiency and the coverage accuracy of the cooling lubricant. At the same time, the first buffer hole 201 and the second buffer hole 220 are arranged along the axial direction, and the diversion hole 300 and the outlet hole 400 are arranged radially, which can prevent the cooling lubricant from being directly thrown out, prevent the grinding wheel 4 from moving around during rotation, reduce the loss of cooling lubricant, and reduce production and manufacturing costs.

[0035] The main body 1 is provided with several detection rings 12. The outer rings of the detection rings 12 form an internal flow channel 200 with the first buffer ring 20 or an annular channel. Temperature detectors 120 and pressure detectors 121 are provided on the detection rings 12. Temperature detectors 120 are used to detect the surface temperature of the first grinding wheel 40 or the second grinding wheel 41, and pressure detectors 121 are used to detect the pressure between the first grinding wheel 40 or the second grinding wheel 41 and the workpiece.

[0036] like Figure 5 As shown, during the high-speed rotation of the device with the grinding wheel 4, the temperature detector 120 can collect the real-time temperature of the grinding working surface of the first grinding wheel 40 or the second grinding wheel 41, and the pressure detector 121 can collect the grinding contact pressure between the grinding wheel 4 and the workpiece in real time. This provides accurate data support for operators to adjust grinding parameters and judge the operating status of the equipment, avoiding situations where the grinding wheel 4 is deformed due to excessive temperature and the workpiece surface is burned, or the grinding wheel 4 is damaged due to excessive pressure and the workpiece is scrapped, thereby improving the safety of the operation.

[0037] The side grinding wheel 4 assembly includes a third electromagnetic buckle 50 and a third grinding wheel 51. The third electromagnetic buckle 50 is sleeved on the main body 1 and abuts against the liquid inlet hole 100; the third grinding wheel 51 is detachably connected to the third electromagnetic buckle 50.

[0038] like Figure 6 As shown, the third electromagnetic buckle 50 is coaxially sleeved on the main body 1, and its inner end face is tightly abutted against the liquid inlet hole 100 opening of the middle cover plate 10, which can prevent the coolant and lubricant from leaking from the end of the device, ensuring the sealing effect and the pressure stability of the internal flow channel 200; at the same time, the third electromagnetic buckle 50 uses the same electromagnetic adsorption structure as the first electromagnetic buckle 30 and the second electromagnetic buckle 31, which can realize the quick and easy detachable fixing of the third grinding wheel 51, expand the side grinding function of the device, and eliminate the need to replace the grinding wheel 4 base, further improving the applicability and processing efficiency of the device. Different specifications of the third grinding wheel 51 can be quickly replaced after power failure, making the operation convenient and efficient.

[0039] The side grinding wheel 4 assembly also includes a third buffer layer 52. The outer ring of the third buffer layer 52 is fixedly connected to the third electromagnetic buckle 50. The third buffer layer 52 is provided with air holes 520 for storing cooling air.

[0040] like Figure 7 As shown, the third buffer layer 52 is disposed between the third electromagnetic buckle 50 and the outer wall of the main body 1. It can effectively absorb the vibration generated during the grinding process, avoid the vibration from causing a decrease in the grinding accuracy of the third grinding wheel 51, and extend the service life of the component. The air holes 520 opened on the third buffer layer 52 can be connected to cooling air according to the processing requirements. The cooling air can achieve air cooling of the third grinding wheel 51 and improve the service life of the third grinding wheel 51.

[0041] The side grinding wheel 4 assembly also includes a small cover plate 53, which is connected to the side wall of the third buffer layer 52 and abuts against the inner ring of the third electromagnetic buckle 50.

[0042] like Figure 6 As shown, the small cover plate 53 is coaxially fixed to the outer axial wall of the third buffer layer 52, and at the same time, it is tightly abutted against the inner ring end of the third electromagnetic buckle 50 to form a complete axial limiting structure, which can limit the axial movement of the third buffer layer 52 and the third electromagnetic buckle 50. At the same time, the small cover plate 53 can form a closed protection for the air holes 520 of the third buffer layer 52, improve the stability of the structure, and extend the service life of the parts.

[0043] The working principle of the electromagnetic replaceable grinding wheel 4 of the present invention is as follows: First, select a suitable grinding wheel 4 according to the processing requirements of the workpiece. After connecting the electromagnetic buckle power supply, its connecting part 302 generates a strong electromagnetic attraction to firmly attract and fix the first grinding wheel 40 and the second grinding wheel 41, realizing the quick assembly and disassembly of the grinding wheel 4. Then, remove the side grinding wheel 4 assembly and inject coolant and lubricant into the internal flow channel 200 through the liquid inlet hole 100 on the middle cover plate 10. After filling, reassemble the side grinding wheel 4 assembly and press it against the liquid inlet hole 100. After connecting the main body 1 to the grinding wheel 4 machine drive shaft, start the equipment, and the device will start at high speed. During rotation, the centrifugal force generated by the high-speed rotation of the grinding wheel 4 causes the cooling lubricant to be continuously delivered along the internal flow channel 200, the second buffer hole 220, the first buffer hole 201, and the diversion hole 300 in sequence. Finally, it is evenly thrown out from the liquid outlet hole 400 on the first grinding wheel 40 and the second grinding wheel 41. By throwing the cooling lubricant out from the inside of the device, efficient cooling and lubrication of the grinding surface is achieved. At the same time, it carries away the metal chips generated during grinding, avoiding the chips from scratching the machined surface of the workpiece, and greatly improving the grinding surface quality and machining accuracy.

[0044] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0046] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. An electromagnetically replaceable grinding wheel, characterized in that, include: The main body includes several middle cover plates and several large cover plates. Each of the middle cover plates and the large cover plates is provided with a liquid inlet hole for receiving coolant and lubricant. A buffer assembly includes a first buffer ring and a second buffer ring, both sleeved on the outer ring of the main body. A large cover plate abuts against both sides of the first buffer ring. The second buffer ring is symmetrically arranged on both sides of the first buffer ring and abuts against the large cover plate. The end of the second buffer ring away from the large cover plate abuts against the middle cover plate. The first buffer ring and the second buffer ring respectively form an internal flow channel with the main body. The liquid inlet hole communicates with the internal flow channel. Both the first buffer ring and the second buffer ring are provided with a first buffer hole that communicates with the internal flow channel. The system includes an electromagnetic fixing assembly and a grinding wheel. The electromagnetic fixing assembly comprises a first electromagnetic buckle and a second electromagnetic buckle. The first electromagnetic buckle is fixedly connected to the outer ring of the first buffer ring, and the second electromagnetic buckle is connected to the outer ring of the second buffer ring. Both the first and second electromagnetic buckles are provided with flow diversion holes. The grinding wheel comprises a first grinding wheel and a second grinding wheel. The first grinding wheel is detachably connected to the first electromagnetic buckle, and the second grinding wheel is detachably connected to the second electromagnetic buckle. Both the first and second grinding wheels are provided with liquid outlet holes. When the first and second grinding wheels rotate, the cooling lubricant can flow out from the liquid outlet holes. A side grinding wheel assembly is connected to the second electromagnetic buckle and abuts against the liquid inlet hole to restrict the flow of coolant and lubricant from the liquid inlet hole.

2. The electromagnetic replaceable grinding wheel according to claim 1, characterized in that, The buffer assembly further includes an annular flow channel connected to the inner ring of the first buffer ring, and a second buffer hole is provided on the annular flow channel, which communicates with the internal flow channel.

3. The electromagnetic replaceable grinding wheel according to claim 1, characterized in that, Sealing rings are embedded in the mating surfaces of the first grinding wheel and the first electromagnetic buckle, and the mating surfaces of the second grinding wheel and the second electromagnetic buckle. The sealing rings are arranged around the outer periphery of the connection between the diversion hole and the liquid outlet hole.

4. The electromagnetic replaceable grinding wheel according to claim 1, characterized in that, Both the first electromagnetic buckle and the second electromagnetic buckle include a protrusion and a connecting portion. The protrusions are symmetrically arranged on both sides of the connecting portion and form a groove in the connecting portion. The first grinding wheel or the second grinding wheel is engaged in the groove and abuts against the connecting portion. The diversion hole is provided on the protrusion.

5. The electromagnetic replaceable grinding wheel according to claim 4, characterized in that, The protrusion is made of an insulator, and the connection is made of a conductor.

6. The electromagnetic replaceable grinding wheel according to claim 2, characterized in that, The first buffer hole and the second buffer hole are arranged along the axial direction of the main body, and the diversion hole and the liquid outlet hole are arranged along the radial direction of the main body.

7. An electromagnetic replaceable grinding wheel according to claim 2, characterized in that, The main body is provided with several detection rings, and the outer rings of the detection rings respectively form the internal flow channels with the first buffer ring or the annular channel. The detection rings are provided with temperature detectors and pressure detectors. The temperature detectors are used to detect the surface temperature of the first grinding wheel or the second grinding wheel, and the pressure detectors are used to detect the pressure between the first grinding wheel or the second grinding wheel and the workpiece.

8. The electromagnetic replaceable grinding wheel according to claim 1, characterized in that, The side grinding wheel assembly includes a third electromagnetic buckle and a third grinding wheel. The third electromagnetic buckle is sleeved on the main body and abuts against the liquid inlet hole. The third grinding wheel is detachably connected to the third electromagnetic buckle.

9. An electromagnetic replaceable grinding wheel according to claim 8, characterized in that, The side grinding wheel assembly also includes a third buffer layer, the outer ring of which is fixedly connected to the third electromagnetic buckle. The third buffer layer is provided with air holes for storing cooling air.

10. An electromagnetic replaceable grinding wheel according to claim 9, characterized in that, The side grinding wheel assembly also includes a small cover plate, which is connected to the side wall of the third buffer layer and abuts against the inner ring of the third electromagnetic buckle.

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