Improved structure of millstone

Abstract

The utility model discloses an improved structure of a millstone, which comprises a base and a millstone body, the millstone body comprises a first grinding group unit and a second grinding group unit, the first grinding group unit comprises at least one first grinding group, a plurality of first grinding blocks are uniformly distributed on each first grinding group in an annular array, and the number of the first grinding blocks of each first grinding group is the same; the second grinding set unit comprises at least one second grinding set, a plurality of second grinding blocks are evenly distributed on each second grinding set in an annular array mode, the number of the second grinding blocks of each second grinding set is the same, and the number of the second grinding blocks of each second grinding set is 2-3 times that of the first grinding blocks of each first grinding set. According to the utility model, the adsorption phenomenon of a workpiece to be ground and the upper grinding disc is eliminated, the technical problem of product scrapping caused by resistance generated by contact of the workpiece due to the adsorption phenomenon is solved, the chip removal capability and the heat dissipation capability of the grinding disc are improved, the grinding performance is enhanced, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of diamond technology, and specifically to an improved structure of a grinding disc. Background Technology

[0002] In the stone processing process, high-speed rotating diamond grinding discs are used to achieve surface leveling, rough grinding, fine grinding, and polishing of the stone.

[0003] There are many types of diamond grinding discs on the market, but these diamond grinding discs often have poor flow guidance due to their large processing area. If the grinding debris cannot be discharged during grinding, it can easily lead to problems such as blockage, overheating, and workpiece burning, which will reduce work efficiency. In addition, some materials have some impurities on their surface. If these impurities are not cleaned, the wear of the grinding disc will be increased, which will greatly reduce the practicality of the diamond grinding disc.

[0004] In view of this, the inventors of this case conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Utility Model Content

[0005] The purpose of this invention is to provide an improved structure for a grinding disc with high flow guidance and heat dissipation capabilities, long service life, and high processing quality.

[0006] To achieve the above objectives, this utility model adopts the following technical solution:

[0007] An improved structure for a grinding disc includes a base and a grinding disc body connected to the base by bonding or bolting. The base has mounting holes for mounting the base on a machine tool. The side closer to the mounting holes is defined as the inner side, and the side farther from the mounting holes is defined as the outer side. At least two grinding unit groups are sequentially arranged on the base from the inner to the outer side of the grinding disc body. These are a first grinding unit and a second grinding unit arranged sequentially from the inner to the outer side. The first grinding unit includes at least one first grinding group, and each first grinding group has a plurality of first grinding blocks evenly distributed in a circular array. The number of first grinding blocks in each first grinding group is the same. The second grinding unit includes at least one second grinding group, and each second grinding group has a plurality of second grinding blocks evenly distributed in a circular array. The number of second grinding blocks in each second grinding group is 2-3 times the number of first grinding blocks in each first grinding group.

[0008] Furthermore, the total cross-sectional area of ​​the first grinding group including the first grinding group unit is less than the total cross-sectional area of ​​the first grinding group including the first grinding group unit outside.

[0009] Further, a first flow guide groove is arranged between two adjacent first grinding blocks, a second flow guide groove is arranged between two adjacent second grinding blocks, each first flow guide groove is communicated with the inner side of the grinding disc body, and communicated with the outer side of the grinding disc body through the second flow guide groove, each second flow guide groove is communicated with the outer side of the grinding disc body, and communicated with the inner side of the grinding disc body through the first flow guide groove.

[0010] Further, the groove width of each first flow guide groove is the same as the groove width of each second flow guide groove.

[0011] Further, the cross section of each first grinding block and the cross section of each second grinding block are trapezoidal.

[0012] Further, each first grinding block and each second grinding block are tapered from the outer side to the inner side.

[0013] Further, each first grinding block and / or each second grinding block is integrally formed with the grinding disc body.

[0014] Further, each first grinding block and / or each second grinding block is detachably mounted on the grinding disc body.

[0015] Further, the orientation of each first grinding block and each second grinding block is defined as up, the orientation of the grinding disc body is defined as down, the base is further provided with grinding block mounting seats corresponding to the positions of each first grinding block and each second grinding block, the cross section of each grinding block mounting seat is trapezoidal, the longitudinal section of each grinding block mounting seat is inverted trapezoidal, each grinding block mounting seat is tapered from the outer side to the inner side and tapered from the upper side to the lower side, the bottom of each first grinding block and each second grinding block is provided with a mounting groove matched with the shape of the corresponding grinding block mounting seat, and each first grinding block and each second grinding block is embedded with the corresponding grinding block mounting seat in a detachable manner through the mounting groove.

[0016] Further, each grinding block mounting seat is integrally or separately arranged on the base.

[0017] By adopting the foregoing design scheme, the beneficial effects of the present application are as follows: the first grinding group and the second grinding group are arranged in a ring array, so that the present application not only facilitates the arrangement of more first grinding blocks, second grinding blocks, first flow guide grooves and second flow guide grooves, eliminates the adsorption phenomenon of the workpiece to be ground and the upper grinding disc, solves the technical problem that the contact resistance of the workpiece caused by the adsorption phenomenon leads to product scrap, and improves the chip removal capacity and heat dissipation capacity of the grinding disc, enhances the grinding performance, prolongs the service life, and more first flow guide grooves and second flow guide grooves can reduce the gravity of the present application, effectively reduce resource consumption and production cost, and the overall performance of the present application is better than that of most commercially available diamond grinding discs. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 The utility model discloses a structure schematic view.

[0019] Fig. 2 The utility model discloses a first abrasive block or second abrasive block and the partial section view of mill disc body in the utility model.

[0020] In the drawing: base 1, mounting hole 11, abrasive block mounting seat 12, mill disc body 2, first abrasive group unit 21, first abrasive group 211, first abrasive block 2111, first flow guide groove 212, second abrasive group unit 22, second abrasive group 221, second abrasive block 2211, second flow guide groove 222, mounting groove 23. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Refer to Figs. 1-2

[0023] An improved structure of mill disc, including base 1 and mill disc body 2 connected on base 1 by bonding or bolt fixing mode, base 1 is provided with mounting hole 11 for installing base 1 on machine table, mounting hole 11 is used for installing connecting shaft (not shown in the drawing), in use, one end of connecting shaft is fixedly connected with mounting hole 11, and connecting shaft is connected with grinding driving equipment, and grinding driving equipment drives base 1 and mill disc body 2 to rotate through connecting shaft. Specifically, base 1 is made of metal or plastic, and mill disc body 2 is phenolic resin abrasive tool.

[0024] For the convenience of description, define the side close to mounting hole 11 as inside, and the side away from mounting hole 11 as outside.

[0025] At least two abrasive group units are sequentially arranged on base 1 along the direction from inside to outside, and are first abrasive group unit 21 and second abrasive group unit 22 sequentially arranged from inside to outside respectively. It is worth mentioning that third abrasive group unit, fourth abrasive group unit and the like can also be arranged, sequentially arranged from inside to outside on base 1 in turn, and detailed description is not given here.

[0026] Specifically, the first grinding group unit 21 includes at least one first grinding group 211, each first grinding group 211 is arranged with a plurality of first grinding blocks 2111 in a ring array, and the number of first grinding blocks 2111 of each first grinding group 211 is the same. In this embodiment, the first grinding group 211 adopts 3 groups, and the 3 groups of first grinding groups 211 are sequentially arranged on the base 1 from the inner side of the base 1 to the outer side of the base 1; the second grinding group unit 22 includes at least one second grinding group 221, each second grinding group 221 is arranged with a plurality of second grinding blocks 2211 in a ring array, and the number of second grinding blocks 2211 of each second grinding group 221 is the same. In this embodiment, the second grinding group 221 adopts 5 groups, and the 5 groups of second grinding groups 221 are sequentially arranged on the base 1 from the outermost first grinding group 211 to the outer side of the base 1. The number of first grinding group units 21 and second grinding group units 22 is not limited to the above group number, and in the embodiment of a larger base 1, more groups of first grinding group units 21 and second grinding group units 22 can be arranged.

[0027] The number of second grinding blocks 2211 of each second grinding group 221 is 2-3 times the number of first grinding blocks 2111 of each first grinding group 211. In this embodiment, the number of second grinding blocks 2211 of each second grinding group 221 is twice the number of first grinding blocks 2111 of each first grinding group 211. It is worth noting that in this embodiment, if a third grinding group unit, a fourth grinding group unit, etc. are arranged, the third grinding group unit is arranged outside the second grinding group unit 22, and the number of third grinding blocks of the third grinding group is twice the number of second grinding blocks 2211 of each second grinding group 221, the number of fourth grinding blocks of the fourth grinding group is twice the number of third grinding blocks of each third grinding group, and so on, which will not be described in detail here.

[0028] Further, the total cross-sectional area of the first grinding group 211 arranged inside the first grinding group unit 21 is smaller than the total cross-sectional area of the first grinding group 211 arranged outside the first grinding group unit 21, in order to adapt to the difference in number between the two. More second grinding blocks 2211 are arranged on the outer side of the base 1, and the area of the second grinding block 2211 is smaller. If the number of second grinding blocks 2211 arranged outside is the same as the number of first grinding blocks 2111 arranged inside, the machining area will inevitably be larger, and there will be problems of poor grinding effect and poor flow effect. Small-particle second grinding blocks 2211 can achieve a more precise grinding effect. Because the particle size is small, a smaller cutting force can be generated during grinding, so that the grinding amount can be more accurately controlled, and the tool edge can achieve higher precision and surface finish.

[0029] Further, the cross section of each first grinding block 2111 and the cross section of each second grinding block 2211 are trapezoidal, and each first grinding block 2111 and each second grinding block 2211 are tapered from the outer side to the inner side.

[0030] Further, the first flow guide groove 212 is arranged between two adjacent first grinding blocks 2111, the second flow guide groove 222 is arranged between two adjacent second grinding blocks 2211, each first flow guide groove 212 is communicated with the inner side of the grinding disc body 2, and is communicated with the outer side of the grinding disc body 2 through the second flow guide groove 222, each second flow guide groove 222 is communicated with the outer side of the grinding disc body 2, and is communicated with the inner side of the grinding disc body 2 through the first flow guide groove 212, the groove width of each first flow guide groove 212 is the same as the groove width of each second flow guide groove 222. In the embodiment, the width of the first flow guide groove 212 and the second flow guide groove 222 is 10-20mm, the smaller the width of the first flow guide groove 212 and the second flow guide groove 222, the lower the chip removal performance, the larger the width of the first flow guide groove 212 and the second flow guide groove 222, the smaller the area occupied by the first grinding block 2111 and the second grinding block 2211, which may cause insufficient service life of the grinding disc, and meanwhile, the width of the first flow guide groove 212 and the second flow guide groove 222 is too large, which may cause the workpiece to be tilted and bumped during the grinding process. Each first flow guide groove 212 and second flow guide groove 222 is communicated with each other and communicated with the inner side and the outer side of the base 1. The utility model sets more first flow guide grooves 212 and second flow guide grooves 222, which can reduce the weight of the grinding disc on one hand, so that the utility model can be lightweight, the cost is lower, the working efficiency and energy utilization rate are improved, on the other hand, it is convenient to arrange more first flow guide grooves 212 and second flow guide grooves 222, which can better guide the flow and dissipate heat, improve the grinding performance, prolong the service life, reduce the frequency of trimming, and the overall performance is better than most of the commercially available grinding discs. Of course, the specific shape of the first flow guide groove 212 and the second flow guide groove 222 can be various, and the distribution position can also be various. During use, a large amount of friction heat is generated between the first grinding block 2111 and the second grinding block 2211 and the base 1, the cross section of the first grinding block 2111 and the small particles of each second grinding block 2211 are distributed on the surface of the base 1, which increases the contact points between the base 1 and the cross section of the first grinding block 2111 and each second grinding block 2211, so that the heat can be more evenly distributed on these contact points, instead of being concentrated in a certain area, thereby effectively reducing the case that the local temperature is too high, which can avoid the annealing of the cutting edge of the cross section of the first grinding block 2111 and each second grinding block 2211 due to overheating, and affect the hardness and wear resistance of the cross section of the first grinding block 2111 and each second grinding block 2211. At the same time, the first grinding block 2111 and the second grinding block 2211 are made of diamond material, which has good heat conduction performance, the small particles of diamond can quickly conduct the heat generated during the grinding process to the outside, and dissipate to the surrounding environment through the first flow guide groove 212 and the second flow guide groove 222, thereby further improving the heat dissipation effect, protecting the first grinding block 2111 and the second grinding block 2211 from high temperature damage, and prolonging the service life of the two.

[0031] Further, the first flow guide groove 212 and the second flow guide groove 222 are linear, and the extending direction of the first flow guide groove 212 and the second flow guide groove 222 is set at a set angle a with the tangential direction of the axis of the mounting hole 11, where the angle a is in the range of 0°<A<90°, so that the grinding dust is more easily discharged along the first flow guide groove 212 and the second flow guide groove 222 under the action of the centrifugal force, and the grinding effect is improved.

[0032] Further, each first grinding block 2111 and / or each second grinding block 2211 is detachably mounted on the grinding disc body 2. In some embodiments, each first grinding block 2111 and / or each second grinding block 2211 is integrally formed with the grinding disc body 2.

[0033] For the convenience of description, the orientation of each first grinding block 2111 and each second grinding block 2211 is defined as up, and the orientation of the grinding disc body 2 is defined as down.

[0034] The base 1 is further provided with a grinding block mounting seat 12 corresponding to each first grinding block 2111 and each second grinding block 2211. The cross section of each grinding block mounting seat 12 is trapezoidal, the longitudinal section of each grinding block mounting seat 12 is inverted trapezoidal, each grinding block mounting seat 12 is tapered from the outer side to the inner side, and each grinding block mounting seat 12 is tapered from the upper side to the lower side. The bottom of each first grinding block 2111 and each second grinding block 2211 is provided with a mounting groove 23 matching the shape of the corresponding grinding block mounting seat 12, and each first grinding block 2111 and each second grinding block 2211 is embedded with the corresponding grinding block mounting seat 12 in a detachable manner through the mounting groove 23. Specifically, during assembly, the mounting groove 23 of each first grinding block 2111 and the mounting groove 23 of each second grinding block 2211 are aligned with the corresponding grinding block mounting seat 12 and are slid into and matched with the corresponding grinding block mounting seat 12. Similarly, during disassembly, the first grinding block 2111 and the second grinding block 2211 can be slid out.

[0035] Further, each grinding block mounting seat 12 is integrally formed with the base 1, which is convenient to manufacture. In some embodiments, each grinding block mounting seat 12 is detachably mounted on the base 1, and each grinding block mounting seat 12 can be fixed on the base 1 by screws. In this way, the grinding block mounting seat 12, the first grinding block 2111 or the second grinding block 2211 can be replaced and maintained individually without the need to disassemble the entire grinding disc. It should be noted that the present embodiment can also be provided with a plurality of grinding block mounting seats 12 which are integrally connected, so that the plurality of grinding block mounting seats 12 form a ring when used, and the plurality of first grinding blocks 2111 or the plurality of second grinding blocks 2211 can be pre-connected through the connecting structure at the ends, which is more convenient to assemble.

[0036] The first grinding group 211 and the second grinding group 221 are arranged in a ring array, so that the utility model not only facilitates arrangement of more first grinding blocks 2111, second grinding blocks 2211, first flow guide grooves 212 and second flow guide grooves 222, eliminates the adsorption phenomenon of the workpiece to be ground and the upper grinding disc, solves the technical problem that the workpiece contact produces resistance due to the adsorption phenomenon, leading to product scrapping, and simultaneously improves the chip removal capacity and heat dissipation capacity of the grinding disc, enhances the grinding performance, improves the service life, and simultaneously, more first flow guide grooves 212 and second flow guide grooves 222 can reduce the gravity of the utility model itself, effectively reduces resource consumption and production cost, and the overall performance of the utility model is superior to that of most commercially available diamond grinding discs.

[0037] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying that there is any such relationship or order between such entities or actions. Although the embodiments of the utility model have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An improved structure of a grinding disc, comprising a base and a grinding disc body connected to the base by means of bonding or bolting, the base being provided with mounting holes for mounting the base on a machine table, the side close to the mounting holes being defined as the inner side, and the side away from the mounting holes being defined as the outer side, characterized in that: The grinding disc body is sequentially provided with at least two grinding group units on the base from inside to outside, which are a first grinding group unit and a second grinding group unit sequentially provided from inside to outside.

2. The improvement in grinding plates as set forth in claim 1, wherein: The first grinding group unit provided inside has a total cross-sectional area of the first grinding groups smaller than that of the first grinding groups provided outside.

3. The improvement in a grinding plate according to claim 1 wherein: First flow guide grooves are provided between adjacent first grinding blocks, and second flow guide grooves are provided between adjacent second grinding blocks.

4. The improvement in a grinding plate according to claim 3 wherein: The first flow guide grooves communicate with the inside of the grinding disc body, and the second flow guide grooves communicate with the outside of the grinding disc body through the first flow guide grooves.

5. The improvement in a grinding disc according to claim 1 wherein: The first flow guide grooves have the same groove width as the second flow guide grooves.

6. The improvement in a grinding plate according to claim 1 wherein: The cross sections of the first grinding blocks and the second grinding blocks are trapezoidal.

7. The improvement in a grinding plate, as recited in claim 1, wherein: The first grinding blocks and / or the second grinding blocks are integrally formed with the grinding disc body.

8. The improvement in a grinding plate according to claim 6 wherein: The first grinding blocks and / or the second grinding blocks are detachably mounted on the grinding disc body.

9. The improvement in a grinding plate according to claim 8 wherein: The orientation of the first grinding blocks and the second grinding blocks is defined as up, and the orientation of the grinding disc body is defined as down.

10. The improvement in a grinding pan as set forth in claim 9, wherein: The base is further provided with grinding block mounting seats corresponding to the positions of the first grinding blocks and the second grinding blocks. The cross sections of the grinding block mounting seats are trapezoidal, and the longitudinal sections of the grinding block mounting seats are inverted trapezoidal. The grinding block mounting seats are tapered from the outside to the inside and from the top to the bottom. The bottom of each first grinding block and each second grinding block is provided with a mounting groove matching the shape of the corresponding grinding block mounting seat. Each first grinding block and each second grinding block is embedded with the corresponding grinding block mounting seat in a detachable manner through the mounting groove. Each grinding block mounting seat is integrally or separately provided on the base.

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