Elastic dry grinding diamond grinding wheel

Abstract

The invention relates to an elastic dry-grinding diamond grinding wheel, and belongs to the field of dry-grinding grinding wheels. Comprising a plurality of elastic grinding pieces, a plurality of supporting blocks and a grinding wheel base body, and the elastic grinding pieces and the supporting blocks are sequentially and alternately arranged in the circumferential direction of the grinding wheel base body and fixedly installed on the end face of one end of the grinding wheel base body; the elastic grinding piece comprises an elastic base plate and a diamond grinding layer, the elastic base plate comprises a mounting section, an elastic transition section and a working section, the mounting section is fixedly arranged at one end of the elastic transition section, the working section is obliquely and fixedly arranged at the other end of the elastic transition section, the mounting section is fixedly connected with the grinding wheel base body, and the diamond grinding layer is fixedly connected to the circumferential side wall of the working section. Rigid impact grinding is buffered through elastic deformation, the damage risk of a grinding wheel and a workpiece is reduced, and the safety of the grinding process is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of dry grinding wheels, in particular to a dry grinding diamond wheel with elasticity. BACKGROUND

[0002] The metal-based diamond cup-shaped grinding wheel for dry grinding ceramic tiles on the market is mainly used for rough machining. The diamond grinding ring is in the form of a whole ring or segmented with grooves. The volume ratio of the binder is generally more than ten times that of the diamond. A large amount of binder material is rubbed with the workpiece or powder to generate a large amount of heat. This not only requires the strength, hardness, heat resistance, self-sharpening, and chip removal capacity of the grinding wheel to have high performance, but also depends on the performance of the binder. It is difficult to balance the holding force of the binder on the diamond. Under the action of heat and force, the diamond is easily extruded and wrapped in the binder, causing plastic deformation of the binder, which in turn causes the holding force of the diamond to fail, the diamond to displace, roll, and fall off, affecting the service life of the grinding wheel.

[0003] The binder of the metal base is a rigid body. The diamond held by it is subjected to strong and rigid grinding in work, which is prone to impact and edge explosion during grinding. The diamond grinding ring is a pre-embedded tool that relies on the chip space provided by the exposed height of the diamond, so it is not suitable for fine abrasive diamond. Even if coarse abrasive diamond is selected, the heat during the grinding process is still high, which affects the performance of the diamond grinding wheel. Since the binder needs to be adapted to multiple requirements, its strength is inevitably disturbed and cannot be considered when making a circumferential ultra-thin and densely grooved grinding wheel. Therefore, the existing segmented grooved grinding wheel has a limited number of segments, a long circumferential chip removal path for powder, high friction heat of powder, poor structural cooling capacity, and high heat that easily causes the binder to soften, causing abnormal displacement, rolling, or falling off of the diamond, which affects the efficient grinding of the grinding wheel. Due to the limitation of chip removal capacity, the grinding wheel has a large load during grinding, which not only wastes electricity but also causes difficulties in stable cutting amount.

[0004] In summary, the metal-based diamond cup-shaped grinding wheel for dry grinding ceramic tiles on the market has the disadvantage of rigid impact grinding, which causes the diamond particles to easily fall off and the workpiece to easily burst, directly affecting the service life of the grinding wheel and high-quality high-speed machining. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a dry grinding diamond wheel with elasticity to solve the above problems.

[0006] The technical scheme for solving the above technical problems of the present application is as follows: a dry grinding diamond grinding wheel with elasticity comprises a plurality of elastic grinding pieces, a plurality of supporting blocks and a grinding wheel base body, the plurality of elastic grinding pieces and the plurality of supporting blocks are sequentially and alternately arranged along the circumference of the grinding wheel base body, and are fixedly installed on one end face of the grinding wheel base body; the elastic grinding piece comprises an elastic base plate and a diamond grinding layer, the elastic base plate comprises an installation section, an elastic transition section and a working section, the installation section is fixedly arranged at one end of the elastic transition section, the working section is fixedly arranged at the other end of the elastic transition section, the installation section is fixedly connected with the grinding wheel base body, and the diamond grinding layer is fixedly arranged on the circumferential side wall of the working section.

[0007] The beneficial effects of the present application are that: the plurality of elastic grinding pieces and the plurality of supporting blocks are arranged to form a grinding ring, and the elastic transition section is arranged in the elastic base plate, which is beneficial to make the elastic grinding piece buffer the rigid impact grinding through elastic deformation, is beneficial to the self-protection of the elastic grinding piece through elastic displacement during overload grinding, prevents the workpiece from being burst, increases the application range of the dry grinding wheel to the material and processing parameters of the workpiece, and is beneficial to safety production; the working section is fixedly arranged at the other end of the elastic transition section, which is beneficial to reduce the risk of diamond grinding layer falling off caused by rigid impact grinding of the grinding wheel, reduce the damage risk of the grinding wheel and the workpiece, and improve the safety of the grinding process.

[0008] On the basis of the above technical scheme, the present application can also be improved as follows.

[0009] Further, the working section is arranged at an angle to the grinding wheel reference surface, and the working section is inclined to the rear of the grinding wheel rotation direction.

[0010] The beneficial effects of the above further scheme are that: it is beneficial to reduce the risk of diamond grinding layer falling off caused by rigid impact grinding of the grinding wheel, reduce the damage risk of the grinding wheel and the workpiece, and improve the safety of the grinding process.

[0011] Further, the angle between the working section and the grinding wheel reference surface is greater than or equal to 30 degrees and less than or equal to 90 degrees.

[0012] The beneficial effects of the above further scheme are that: by adjusting the inclination angle, the self-sharpening, sharpness, life and grinding scene of the grinding wheel can be adjusted: the smaller the angle, the more flexible the grinding wheel is, that is, it is not easy to appear edge burst, this function can partially replace the application scene of the resin bond grinding wheel, realize the structural function replacement of the material function, and is more conducive to the safety anti-collision of the grinding wheel and the difficulty of diamond particle falling off, and is more conducive to increasing the life; the larger the angle (the maximum is 90 degrees), the more rigid the grinding wheel is, that is, it is suitable for heavy cutting, and is more conducive to the self-sharpening of the grinding wheel, and is suitable for high-speed or rough grinding.

[0013] Further, the circumferential two-side side walls of the support block correspondingly abut against the mounting segments of the two adjacent elastic grinding members, and an air flow channel is formed between the working segments of the two adjacent elastic grinding members.

[0014] The beneficial effect of the further scheme is that the working segments of the elastic grinding members form an air flow channel, which is conducive to the formation of a heat dissipation mode of air convection, and the support block is made of a material with high thermal conductivity, which is conducive to reducing the accumulation of heat during dry grinding and improving the service life of the grinding wheel.

[0015] Further, a pressing plate is further included, which is annular and plate-shaped, and is fixedly installed on one end face of the grinding wheel base through fastening aids, and the outer circumferential surface of the pressing plate abuts against the support blocks and the mounting segments.

[0016] The beneficial effect of the further scheme is that the pressing plate is conducive to enhancing the fastening strength of the grinding ring formed by the plurality of elastic grinding members and the plurality of support blocks on the one end face of the grinding wheel base.

[0017] Further, the elastic base plate is made of spring steel.

[0018] The beneficial effect of the further scheme is that the spring steel material is conducive to supporting the stress of the diamond particles during work, avoiding plastic deformation of the working segment caused by extrusion of the diamond particles, reducing the holding requirement of the binder for the diamond particles, thereby reducing the performance difficulty of the binder and reducing the use amount of high-value materials, and further reducing the cost.

[0019] Further, the diamond grinding layer includes a binder and a plurality of diamond particles, the diamond particles are fixed on one side wall of the working segment in the circumferential direction through the binder, and a plurality of the diamond particles are arranged in a single layer in the binder.

[0020] The beneficial effect of the further scheme is that the diamond particles are arranged in a single layer in the binder, which is conducive to achieving the effect of grinding, cooling and chip removal at the same time, achieving rapid chip removal, and greatly reducing the friction force and friction heat generated by the powder dust and the workpiece, thereby saving the electricity cost.

[0021] Further, the thickness of the binder in the circumferential direction is greater than or equal to the particle size of the diamond particles and less than twice the particle size of the diamond particles.

[0022] The beneficial effect of the further scheme is that the diamond particles are arranged in a single layer in the binder, which is conducive to achieving the effect of grinding, cooling and chip removal at the same time, and accelerating the chip removal speed.

[0023] Further, the binder is a single-material binder or a composite-material binder.

[0024] The beneficial effect of the further scheme is that it is conducive to fixing the diamond particles on the circumferential side wall of the working section by different consolidation methods, enhancing the stability of the diamond particle consolidation, reducing the manufacturing cost, and improving the performance of the binder.

[0025] Further, a plurality of partition grooves are arranged on the elastic transition section and the working section in the radial direction, and the partition grooves are in communication with the end of the working section away from the mounting section and the side wall on both sides of the elastic grinding piece in the circumferential direction.

[0026] The beneficial effect of the further scheme is that when the rigidity of the elastic grinding piece is too high to be adjusted, the rigidity of the elastic grinding piece can be reduced by arranging a plurality of partition grooves, thereby facilitating the elastic deformation of the elastic grinding piece in the circumferential direction.

[0027] Further, a plurality of elastic grinding pieces are arranged around the grinding wheel base in the circumferential direction to form a plurality of grinding rings, and the plurality of grinding rings are coaxially arranged in the radial direction of the grinding wheel base.

[0028] The beneficial effect of the further scheme is that by adjusting the performance of the elastic grinding piece on each grinding ring, such as adjusting the material, elasticity, strength, and pressure-bearing capacity of the elastic base plate, adjusting the geometric dimensions (thickness, width, length, etc.) and inclination angle of the elastic transition section, adjusting the binder material of the diamond grinding layer, adjusting the parameters (particle size, concentration, and strength) of the diamond particles, and the like, the different needs of grinding processing can be adapted, and each grinding ring has different performance to realize the composite function of one wheel with multiple functions. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The overall structure schematic diagram provided for the embodiment of the present application; Figure 2 The schematic diagram of the partially cut overall structure provided for the embodiment of the present application; Figure 3 The connection relationship schematic diagram between the plurality of elastic grinding pieces and the plurality of supporting blocks provided for the embodiment of the present application; Figure 4 The isometric view of the elastic grinding piece provided for the embodiment of the present application; Figure 5 The front view of the elastic grinding piece provided for the embodiment; Figure 6 The Figure 5 The enlarged schematic diagram of the A area in the middle; Figure 7 The schematic diagram of the diamond particles arranged in the diamond grinding layer in another embodiment; Figure 8 A schematic view of the grinding wheel processing provided by the embodiment of the present application; Figure 9 A schematic view of the grinding wheel processing provided by the embodiment of the present application; Figure 4 An enlarged schematic view of the B area in the middle; Figure 10 An enlarged schematic view of the workpiece and the elastic grinding piece during the grinding wheel processing provided by the embodiment of the present application; Figure 11 An enlarged schematic view of the workpiece and the elastic grinding piece during the grinding wheel processing provided by the prior art; Figure 12 A structural schematic view of the elastic grinding piece provided by the embodiment of the present application and provided with a partition groove; Figure 13 A front view of the elastic grinding piece provided by the embodiment of the present application and provided with a partition groove; Figure 14 A whole structural schematic view of the multiple elastic grinding pieces provided by the embodiment of the present application and arranged along the circumference of the grinding wheel base to form two grinding rings; Figure 15 A schematic view of the grinding wheel processing provided by the embodiment of the present application; Figure 14 An enlarged schematic view of the D area in the middle; Figure 16 A whole structural schematic view of the multiple elastic grinding pieces provided by the embodiment of the present application and arranged along the circumference of the grinding wheel base to form three grinding rings; Figure 17 A schematic view of the grinding wheel processing provided by the embodiment of the present application; Figure 16 An enlarged schematic view of the C area in the middle; Figure 18 A partial structural isometric view of the three grinding rings formed by the multiple elastic grinding pieces provided by the embodiment of the present application and arranged along the circumference of the grinding wheel base; Figure 19 A partial structural front view of the three grinding rings formed by the multiple elastic grinding pieces provided by the embodiment of the present application and arranged along the circumference of the grinding wheel base.

[0030] Wherein, Figure 2 , Figure 14 and Figure 16 the arrow in indicates the rotation direction of the grinding wheel, Figure 5 δ in indicates the inclination angle between the working section 113 and the grinding wheel reference surface, Figure 8 the rectangle in indicates the workpiece to be ground, the straight arrow indicates the movement direction of the workpiece, and the arc arrow indicates the rotation direction of the grinding wheel, Figure 10 and Figure 11 F1 in indicates the rotational tangential force of the workpiece on the diamond particles 122 in the elastic grinding piece 1 participating in the work during the grinding wheel working, and F2 indicates the axial pressure of the workpiece on the diamond particles 122 in the elastic grinding piece 1 participating in the work during the grinding wheel working.

[0031] The components represented by the numbers in the drawings are listed as follows: 1, elastic grinding piece; 2, support block; 3, grinding wheel base; 4, pressing plate; 11, elastic base plate; 12, diamond grinding layer; 111, mounting section; 112, elastic transition section; 113, working section; 114, partition groove; 121, binder; 122, diamond particles; 1211, electroplated binder layer; 1212, powder metallurgical binder layer. DETAILED DESCRIPTION

[0032] The principles and features of the present application are described below, and the examples are only used to explain the present application, and are not used to limit the scope of the present application.

[0033] As Figures 1 to 11 shown, the embodiment provides a dry grinding diamond grinding wheel with elasticity, comprising: a plurality of elastic grinding pieces 1, a plurality of support blocks 2 and a grinding wheel base 3, the plurality of elastic grinding pieces 1 and the plurality of support blocks 2 are alternately arranged along the circumference of the grinding wheel base 3, and are fixedly installed on one end face of the grinding wheel base 3; the elastic grinding piece 1 comprises an elastic base plate 11 and a diamond grinding layer 12, the elastic base plate 11 comprises a mounting section 111, an elastic transition section 112 and a working section 113, the mounting section 111 is fixedly arranged at one end of the elastic transition section 112, the working section 113 is fixedly arranged at the other end of the elastic transition section 112, the mounting section 111 is fixedly connected with the grinding wheel base 3, and the diamond grinding layer 12 is fixedly arranged on the circumferential side wall of the working section 113.

[0034] It should be noted that in the technical scheme of the present application, the support block 2 is preferably made of a material with high thermal conductivity, low cost and softness, such as pure aluminum, so that the support block 2 conducts heat dissipation, which is beneficial to reduce the accumulation of dry grinding heat and improve the service life of the grinding wheel, and the soft material is beneficial to prevent stress caused by extrusion of the elastic grinding piece 1 and prevent the elastic grinding piece 1 from breaking.

[0035] The working section 113 is a hard backrest base plate, that is, during the working of the grinding wheel, the working section 113 is behind the diamond along the rotation direction of the grinding wheel, and the hardness of the working section 113 needs to meet the following conditions: when the diamond particles 122 work under stress, the working section 113 will not be extruded by the diamond particles 122 to produce plastic deformation, which is beneficial to reduce the holding requirement of the binder on the diamond, thereby reducing the performance difficulty of the binder and reducing the use amount of high-value materials, and further reducing the cost. The elastic transition section 112 is made of a material with low elastic stiffness and low support, which can replace the resin binder dry grinding wheel in the field of non-metal material grinding processing or processing of strong abrasive materials.

[0036] The beneficial effects of the present application are that: a plurality of elastic grinding pieces and a plurality of supporting blocks are arranged to form a grinding ring, and an elastic transition section is arranged in the elastic base plate, which is beneficial to make the elastic grinding piece buffer the rigid impact grinding through elastic deformation, is beneficial to the self-protection of the elastic grinding piece through elastic displacement during overload grinding, prevents the workpiece from being hit and burst, increases the applicable range of the dry grinding wheel to the workpiece material and processing parameters, and is beneficial to safety production; the working section is obliquely fixed at the other end of the elastic transition section, which is beneficial to reduce the risk of diamond grinding layer falling off caused by rigid impact grinding of the grinding wheel, reduce the damage risk of the grinding wheel and the workpiece, and improve the safety of the grinding process.

[0037] Preferably, as shown in the figure, the working section 113 is obliquely arranged between the grinding wheel reference surface, and the working section 113 is inclined to the rear of the grinding wheel rotation direction. Figure 2

[0038] It should be noted that in the technical solution of the present application, the grinding wheel reference surface is the surface connected between the grinding wheel and the motor flange.

[0039] The beneficial effects of the preferred scheme are that: it is beneficial to reduce the risk of diamond grinding layer falling off caused by rigid impact grinding of the grinding wheel, reduce the damage risk of the grinding wheel and the workpiece, and improve the safety of the grinding process.

[0040] Preferably, as shown in the figure, the working section 113 is obliquely arranged between the grinding wheel reference surface, and the working section 113 is inclined to the rear of the grinding wheel rotation direction. Figure 5

[0041] It should be noted that for the case of small cutting amount or low feed speed, the elastic transition section 112 and the working section 113 are vertically assembled on the base, that is, δ is 90 degrees, which is beneficial to simplify the processing technology; in the preferred embodiment of the present application, the inclination angle δ between the working section 113 and the grinding wheel reference surface is 60°; if the inclination angle δ between the working section 113 and the grinding wheel reference surface is greater than 90 degrees and less than 180 degrees, the impact accident is easy to occur, but if the grinding wheel feed precision can be strictly controlled, the inclination angle in the range of greater than 90 degrees and less than 180 degrees is beneficial to the diamond passivation falling off, that is, to improve the self-sharpening, which is beneficial to the fine particle diamond grinding wheel to solve the self-sharpening problem; Figure 10 and Figure 11 ​​​It can be seen that the grinding wheel is subjected to axial pressure F2 of the workpiece on the diamond particles 122 participating in work in the elastic grinding piece 1 and rotational tangential force F1, and the area where the binder 121 holds the diamond particles 122 is the weakest when holding the diamond particles 122, which is the area between adjacent diamond particles 122 near the diamond particles 122, because the binder 121 in this area is the least, and when a plurality of diamond particles 122 are arranged in a circumferential single layer in the binder 121, and the distance between the diamond particles 122 and the working section 113 is substantially the same, that is, from the perspective of the working section 113, the plurality of diamond particles 122 are arranged in a plane, and when the plurality of areas where the binder 121 holds the diamond particles 122 are connected, a dashed surface in the working section 113 is formed, and the dashed surface is the weakest surface of the diamond particles held by the binder 121. Figures 9 to 11 Figures 9 to 11 The greater the inclination angle δ, the closer the axial pressure F2 direction during grinding to the weak area of the binder 121 holding the diamond particles 122, the greater the component of the axial pressure F2 on the diamond particles 122 in the direction of the working section 113, the easier the diamond particles 122 to fall off, the more difficult the back grinding (sharpening), and the more likely to cause edge collapse, but the better the self-sharpening and the higher the sharpness, which is suitable for rigid grinding. The smaller the inclination angle δ, the farther the axial pressure F2 direction during grinding from the weak area of the binder 121 holding the diamond particles 122, the smaller the component of the axial pressure F2 on the diamond particles 122 in the direction of the working section 113, the more difficult the diamond particles 122 to fall off, which improves the utilization rate of the diamond particles 122, and the easier the back grinding (sharpening), but the more likely to cause the number of working diamond particles 122 participating in grinding to increase (i.e., the elastic grinding piece 1 at each point in the radial direction is prone to have more than one and less than two diamond particles participating in work in the circumferential direction), which is conducive to improving the service life, but the load is increased, which is suitable for flexible grinding. The mounting section and the elastic transition section of the substrate are vertically arranged, which is conducive to simplifying the manufacturing process.

[0042] The beneficial effects of the above preferred scheme are: by adjusting the inclination angle, the self-sharpening, sharpness, service life, and grinding scenarios of the grinding wheel can be adjusted: the smaller the angle, the more likely the grinding wheel to present flexible grinding, i.e., not prone to edge collapse, which can partially replace the application scenarios of resin binder grinding wheels, realizes the structural functional replacement of material functional change, is more conducive to the safety of the grinding wheel and the difficulty of the diamond particles to fall off, and is conducive to increasing the service life; the larger the angle (the maximum is 90 degrees), the more likely the grinding wheel to present rigid grinding, i.e., suitable for heavy cutting, which is more conducive to the self-sharpening of the grinding wheel and is suitable for high-speed or rough grinding.

[0043] Preferably, as shown in Figure 2 and Figure 3 ​​As shown, the circumferential two side walls of the support block 2 abut against the mounting segments 111 of the two adjacent elastic grinding members 1 respectively, and the working segments 113 of the two adjacent elastic grinding members 1 form an air flow channel.

[0044] It should be noted that, in the technical scheme of the present application, the air flow channel is a channel formed by the multiple elastic grinding members 1 and the multiple support blocks 1 around the inner and outer diameters of the grinding ring.

[0045] The beneficial effect of the above preferred scheme is that the air flow channel is formed between the working segments of the elastic grinding members, which is conducive to the formation of the air convection heat dissipation mode, and the support block is made of a material with high thermal conductivity, which is conducive to reducing the heat accumulation of dry grinding and improving the service life of the grinding wheel.

[0046] Preferably, as shown in Figure 1 and Figure 2 Further comprising a pressing plate 4, the pressing plate 4 is an annular plate structure, the pressing plate 4 is fixedly installed on one end face of the grinding wheel base 3 through a fastening auxiliary part, and the outer periphery of the pressing plate 4 abuts against the support block 2 and the mounting segment 111.

[0047] It should be noted that, in the preferred embodiment of the present application, the fastening auxiliary part is a screw, and the abutment is limited, that is, an annular groove is provided on one end face of the grinding wheel base 3, the mounting segment 111 of the elastic grinding member 1 and the support block 2 are both adapted to be fixedly arranged in the annular groove, and the annular groove cooperates with the outer periphery of the pressing plate 4, which is conducive to fastening the grinding ring formed by the multiple elastic grinding members 1 and the multiple support blocks 2 on one end face of the grinding wheel base 3.

[0048] The beneficial effect of the above preferred scheme is that the pressing plate is conducive to enhancing the fastening strength of the grinding ring formed by the multiple elastic grinding members and the multiple support blocks on one end face of the grinding wheel base.

[0049] Preferably, the elastic substrate 11 is made of spring steel, such as 65 manganese steel plate.

[0050] The beneficial effect of the above preferred scheme is that the spring steel material is conducive to making the working segment as a hard backrest substrate to support the stress of the diamond particles during work, avoiding plastic deformation of the working segment caused by extrusion of the diamond particles, reducing the performance difficulty of the binder and the use amount of high-value materials, thereby reducing the cost.

[0051] Preferably, as shown in Figure 6 and Figure 7As shown in the figure, the diamond grinding layer 12 comprises a binder 121 and a plurality of diamond particles 122, the diamond particles 122 are consolidated on the circumferential side wall of the working section 113 by the binder 121, and a plurality of the diamond particles 122 are arranged in a single layer in the binder 121.

[0052] The beneficial effect of the above preferred scheme is that the diamond particles are arranged in a single layer in the binder, which is conducive to achieving the effects of grinding, cooling and chip removal at the same time, realizing fast chip removal, greatly reducing the friction force and friction heat generated by the powder and the workpiece, low processing load, and saving electricity cost.

[0053] Preferably, as shown in the figure, Figure 6 and Figure 7 As shown in the figure, the circumferential thickness of the binder 121 is greater than or equal to the particle size of the diamond particles 122, and less than twice the particle size of the diamond particles 122.

[0054] The beneficial effect of the above preferred scheme is that the diamond particles are arranged in a single layer in the binder, which is conducive to achieving the effects of grinding, cooling and chip removal at the same time, and speeding up the chip removal speed.

[0055] Preferably, as shown in the figure, Figure 6 and Figure 7 As shown in the figure, the binder 121 is a single-material binder or a composite-material binder.

[0056] It should be noted that in the preferred embodiment of the present application, the single-material binder is an electroplated binder, a single-powder metallurgical binder or a brazing binder; the composite-material binder is a powder metallurgical binder layer formed by mixing composite powders or a powder metallurgical binder layer formed by electroplating an electroplated binder layer 1211 on the circumferential side wall of the working section 113, and then powder metallurgy forming a powder metallurgical binder layer 1212 on the side of the electroplated binder layer 1211 away from the working section 113, and a plurality of the diamond particles 122 are arranged in a single layer between the electroplated binder layer 1211 and the powder metallurgical binder layer 1212.

[0057] The beneficial effect of the above preferred scheme is that the diamond particles are consolidated on the circumferential side wall of the working section by different consolidation methods, which enhances the stability of the diamond particle consolidation, reduces the manufacturing cost, and improves the performance of the binder.

[0058] Preferably, the volume ratio of the diamond particles 122 in the diamond grinding layer 12 is 20%-55%.

[0059] The beneficial effects of the above preferred scheme are: it is beneficial to form a high concentration structure of single-layer diamond particles on the circumferential side wall of the working section, so that the distance between the diamond particles is closer, which is beneficial to the proportion of mechanical crushing in the grinding process, and it is also beneficial to reduce the amount of binder and reduce the material, and reduce the friction amount between the binder and the workpiece to reduce the noise during processing.

[0060] Preferably, as shown in Figure 12 and Figure 13 The elastic transition section 112 and the working section 113 are radially spaced apart and provided with a plurality of partition grooves 114, which are communicated with one end of the working section 113 away from the mounting section 111 and communicated with the side wall on both sides of the elastic grinding piece 1 in the circumferential direction.

[0061] The beneficial effects of the above preferred scheme are: when the rigidity of the elastic grinding piece is too high and difficult to adjust, the rigidity of the elastic grinding piece can be reduced by setting multiple partition grooves, so that the elastic grinding piece can be deformed in the circumferential direction.

[0062] Preferably, as shown in Figures 14 to 19 A plurality of elastic grinding pieces 1 are arranged in a plurality of grinding rings along the circumferential direction of the grinding wheel base 3, and a plurality of grinding rings are coaxially arranged along the radial direction of the grinding wheel base 3.

[0063] It should be noted that in the elastic grinding piece 1 that constitutes each grinding ring, the material of the elastic substrate 11, the elasticity, the thickness of the working section 113, the length of the working section 113 in the radial direction of the grinding wheel, the particle size of the diamond particles 122, and the angle between the working section 113 and the grinding wheel reference surface can be the same, different, or partially the same.

[0064] As shown in Figure 14 and Figure 15 The two grinding rings (the first grinding ring and the second grinding ring) are composed of elastic grinding pieces 1, the particle size of the diamond particles 122 in the first grinding ring is relatively coarse, and the particle size of the diamond particles 122 in the second grinding ring is relatively fine; each grinding ring is formed by a plurality of elastic grinding pieces 1 arranged along the circumferential direction of the grinding wheel base 3; the plurality of elastic grinding pieces 1 and the plurality of support blocks 2 are alternately arranged along the circumferential direction of the grinding wheel base 3 in the following order: the elastic grinding piece 1 in the first grinding ring, the support block 2, the elastic grinding piece 1 in the second grinding ring, and the support block 2 are alternately arranged along the circumferential direction of the grinding wheel base 3, and the elastic grinding piece 1 in the first grinding ring and the elastic grinding piece 1 in the second grinding ring are spaced apart or staggered in the radial direction of the grinding wheel base 3.

[0065] As shown in Figure 14 and Figure 15The image shows two grinding rings (first grinding ring and second grinding ring). In the first grinding ring, an air passage groove is formed between the working sections 113 of two adjacent elastic grinding elements 1 in the circumferential direction of the grinding wheel. In the second grinding ring, an air passage groove is formed between the working sections 113 of two adjacent elastic grinding elements 1 in the circumferential direction of the grinding wheel.

[0066] like Figures 17 to 19 The diagram shows three grinding rings (first grinding ring, second grinding ring, and third grinding ring). In the elastic grinding element 1 of the first grinding ring, the diamond particles 122 have a relatively coarse grit size. In the elastic grinding element 1 of the second grinding ring, the diamond particles 122 have a relatively medium grit size. In the elastic grinding element 1 of the third grinding ring, the diamond particles 122 have a relatively fine grit size. Each grinding ring is formed by multiple elastic grinding elements 1 arranged circumferentially around the grinding wheel base 3. Multiple elastic grinding elements... The component 1 and multiple support blocks 2 are arranged alternately along the circumference of the grinding wheel base 3 as follows: along the circumference of the grinding wheel base 3, they are arranged alternately in the order of "elastic grinding component 1 in the first grinding ring, support block 2, elastic grinding component 1 in the second grinding ring, support block 2, elastic grinding component 1 in the third grinding ring and support block 2", and the elastic grinding component 1 in the first grinding ring, the elastic grinding component 1 in the second grinding ring and the elastic grinding component 1 in the third grinding ring are arranged at intervals or staggered in the radial direction of the grinding wheel base 3. like Figures 17 to 19 As shown, the length L1 of the working section 113 of the elastic grinding element 1 in the first grinding ring in the radial direction of the grinding wheel, the length L2 of the working section 113 of the elastic grinding element 1 in the second grinding ring in the radial direction of the grinding wheel, and the length L3 of the working section 113 of the elastic grinding element 1 in the radial direction of the grinding wheel in the third grinding ring are all different. The thickness H1 of the working section 113 of the elastic grinding element 1 in the first grinding ring, the thickness H2 of the working section 113 of the elastic grinding element 1 in the second grinding ring, and the thickness H3 of the working section 113 of the elastic grinding element 1 in the third grinding ring are all different. The included angles δ1 between the working section 113 of the elastic grinding element 1 in the first grinding ring and the grinding wheel reference surface, δ2 between the working section 113 of the elastic grinding element 1 in the second grinding ring and the grinding wheel reference surface, and δ3 between the working section 113 of the elastic grinding element 1 in the third grinding ring and the grinding wheel reference surface are all different.

[0067] like Figures 17 to 19 The diagram shows three grinding rings (first grinding ring, second grinding ring, and third grinding ring). In the first grinding ring, an air passage groove is formed between the working sections 113 of two adjacent elastic grinding elements 1 in the circumferential direction of the grinding wheel. In the second grinding ring, an air passage groove is formed between the working sections 113 of two adjacent elastic grinding elements 1 in the circumferential direction of the grinding wheel. In the third grinding ring, an air passage groove is formed between the working sections 113 of two adjacent elastic grinding elements 1 in the circumferential direction of the grinding wheel.

[0068] The elastic transition section 112 can be provided in a straight line segment, a broken line segment, a curved line segment, a combination line segment of straight lines, a combination line segment of straight lines and arc lines, a combination line segment of arc lines, and the like according to the requirements of elasticity and pressure bearing.

[0069] The beneficial effects of the above preferred scheme are: by adjusting the performance of the elastic grinding element on each grinding ring, such as adjusting the material, elasticity, strength, pressure bearing of the elastic substrate, adjusting the geometric dimensions (thickness, width, length, etc.), inclination angle of the elastic transition section, adjusting the binder material of the diamond grinding layer, adjusting the parameters (particle size, concentration, strength) of the diamond particles, and the like, to adapt to different needs of grinding processing, so that each grinding ring has different performance, to realize the composite function of one wheel with multiple functions.

[0070] In the technical scheme of the present application, the expressions of axial, radial, circumferential and the like are based on the grinding wheel as the reference.

[0071] The grinding wheel of the present application can also be applied under the condition of allowing wet grinding.

[0072] The grinding wheel of the present application can also use general mechanical technology to set a limiting device to control or limit the position change range of the plurality of elastic grinding elements 1, which is beneficial to ensure the processing accuracy.

[0073] The present application can also use general mechanical assembly technology to set the grinding ring in a segmented manner, that is, to manufacture the plurality of elastic grinding elements 1 into grinding blocks, and to assemble the grinding blocks to a disc-shaped oscillating grinding (polishing) machine (i.e., the grinding blocks can reciprocatingly oscillate) or a fixed grinding (polishing) machine (i.e., the grinding blocks cannot oscillate) and the like end face grinding and polishing equipment for dry grinding or wet grinding.

[0074] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0075] In addition, the terms "first", "second", etc. are used only for the purpose of description and do not imply or imply relative importance or imply the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0076] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0077] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0078] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0079] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A dry grinding diamond wheel having elasticity, characterized by, The utility model relates to a grinding wheel, including: A plurality of elastic grinding parts (1), a plurality of supporting blocks (2) and a grinding wheel base (3), a plurality of the elastic grinding parts (1) and a plurality of the supporting blocks (2) are sequentially and alternately arranged along the circumference of the grinding wheel base (3), and are fixedly installed on the end face of the grinding wheel base (3). The elastic grinding part (1) includes an elastic base plate (11) and a diamond grinding layer (12), the elastic base plate (11) includes an installation section (111), an elastic transition section (112) and a working section (113), the installation section (111) is fixedly arranged at one end of the elastic transition section (112), and the working section (113) is fixedly arranged at the other end of the elastic transition section (112) in an inclined manner, the installation section (111) is fixedly connected with the grinding wheel base (3), and the diamond grinding layer (12) is fixedly arranged on the circumferential side wall of the working section (113).

2. The dry diamond grinding wheel having elasticity according to claim 1, wherein, The working section (113) is arranged in an inclined manner between the working section (113) and the grinding wheel reference surface, and the working section (113) is inclined towards the rear of the grinding wheel rotation direction.

3. The dry abrasive diamond grinding wheel having elasticity according to claim 2, wherein, The included angle between the working section (113) and the grinding wheel reference surface is greater than or equal to 30 degrees and less than or equal to 90 degrees.

4. The dry abrasive diamond grinding wheel having elasticity according to claim 1, wherein, The circumferential side walls of the supporting block (2) correspondingly abut against the installation section (111) of the adjacent two elastic grinding parts (1), and the air flow channel is formed between the working sections (113) of the adjacent two elastic grinding parts (1).

5. The dry abrasive diamond grinding wheel having elasticity according to claim 1, wherein, Further comprising a pressing plate (4), the pressing plate (4) is annular plate structure, the pressing plate (4) is fixedly installed on the end face of the grinding wheel base (3) through fastening auxiliary part, and the outer circumferential surface of the pressing plate (4) is abutted against the supporting block (2) and the installation section (111) in a limiting manner.

6. The dry abrasive diamond grinding wheel having elasticity according to claim 1, wherein, The elastic base plate (11) is made of spring steel material.

7. The dry abrasive diamond grinding wheel having elasticity according to any one of claims 1 to 6, characterized in that, The diamond grinding layer (12) includes a binder (121) and a plurality of diamond particles (122), the diamond particles (122) are fixedly arranged on one side wall of the working section (113) in a circumferential direction by the binder (121), and a plurality of the diamond particles (122) are arranged in a single layer in the binder (121).

8. The dry abrasive diamond grinding wheel having elasticity according to claim 7, wherein, The thickness of the binder (121) in the circumferential direction is greater than or equal to the particle size of the diamond particles (122) and less than twice the particle size of the diamond particles (122); the binder (121) is a binder of single material or a binder of composite material.

9. The elastic dry abrasive diamond wheel of claim 1, wherein, A plurality of partition grooves (114) are arranged on the elastic transition section (112) and the working section (113) in a radial direction, the partition grooves (114) are communicated with one end of the working section (113) away from the installation section (111) and the side walls on both sides of the elastic grinding part (1) in a circumferential direction.

10. The dry abrasive diamond grinding wheel having elasticity according to claim 1, wherein, A plurality of the elastic grinding parts (1) are arranged in a plurality of grinding rings around the grinding wheel base (3) in a circumferential direction, and the plurality of grinding rings are coaxially arranged along the radial direction of the grinding wheel base (3).

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