Grinding wheel with balance structure and grinding machine

Abstract

According to the grinding wheel with the balance structure and the grinding machine, a grinding wheel body is installed on a grinding wheel shaft through a grinding wheel flange, an annular groove is formed in the grinding wheel flange, and a plurality of balance blocks are embedded in the annular groove in the grinding wheel flange. And a limiting hole for mounting the metal ball body and a positioning hole communicated with the limiting hole are respectively formed in the balance block. When the balance block is configured on the grinding wheel flange, the balance block is only required to be embedded in the annular channel on the grinding wheel flange, the metal ball is embedded in the limiting hole on the balance block, and then the jacking fixing piece is inserted and fixed in the positioning hole, so that the metal ball can be jacked and pressed towards the corresponding channel surface of the annular channel through the jacking fixing piece; and the metal ball body is tightly pressed in the annular channel on the grinding wheel flange, so that the balance block is firmly and stably positioned on the annular channel. Due to the fact that the balance block is arranged on the grinding wheel flange, the grinding wheel body can be kept in a balance state in the high-speed rotating process, and grinding machining precision can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine tool equipment, and in particular relates to a grinding wheel and a grinding machine with a balanced structure. Background Art

[0002] A grinder is a machine tool that uses abrasive tools to grind the surface of a workpiece. Most grinders use a high-speed rotating grinding wheel to grind the workpiece. The balance performance of the grinding wheel when rotating at high speed directly affects the grinding accuracy of the grinding wheel and the roughness of the workpiece surface. During the current high-speed rotating grinding process, the grinding wheel is easily unbalanced due to its centrifugal force, which will greatly reduce the grinding accuracy of the grinding wheel on the workpiece, making it difficult to meet the growing demand for high-precision grinding. Utility Model Content

[0003] Based on the above problems existing in the prior art, one of the purposes of the embodiments of the utility model is to provide a grinding wheel with a balanced structure to solve the problem that the grinding wheel in the prior art is prone to an unbalanced state during high-speed rotation for grinding, thereby reducing the grinding accuracy of the grinding wheel.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a grinding wheel with a balanced structure, comprising:

[0005] A basic component, comprising a grinding wheel shaft rotatably mounted on a grinding wheel frame of a grinding machine, a grinding wheel flange fixedly mounted on the grinding wheel shaft, and a grinding wheel body arranged on the grinding wheel flange, wherein an annular groove is arranged on the grinding wheel flange around the rotation center of the grinding wheel; and

[0006] A balancing assembly, comprising a plurality of balancing blocks for embedding in the annular channel, a metal ball for engaging and fixing the balancing block, and a holding fixture for pressing the metal ball so that the metal ball is tangent to the corresponding channel surface of the annular channel, wherein the balancing block is provided with a limiting hole for installing the metal ball and a positioning hole for inserting the holding fixture, the metal ball is embedded in the limiting hole, and the positioning hole is communicated with the limiting hole;

[0007] Wherein, when the supporting fixture is inserted into and fixed in the positioning hole, the supporting fixture presses the metal sphere so that the part of the spherical surface of the metal sphere protruding outside the balancing block abuts against the corresponding channel surface of the annular channel; when the supporting fixture is disengaged from the positioning hole, the metal sphere rolls in contact with the corresponding channel surface of the annular channel so that the balancing block can slide along the path defined by the annular channel.

[0008] Further, the limiting hole extends in the radial direction of the grinding wheel shaft, and the positioning hole extends in the axial direction of the grinding wheel shaft.

[0009] Furthermore, the holding fixture is a top screw, and the positioning hole is a top screw hole with an internal thread.

[0010] Furthermore, the first end of the top screw is provided with an inner hexagonal hole or an inner octagonal hole, and the second end of the top screw is provided with a conical pressing portion, and the diameter of the conical pressing portion gradually decreases from the first end of the top screw to the second end of the top screw.

[0011] Furthermore, the balancing block is provided with two limiting holes and two top screw holes, the two top screw holes are arranged in one-to-one correspondence with the two limiting holes, a metal sphere is provided in each limiting hole, and a top screw is provided in each top screw hole.

[0012] Furthermore, the diameter of the limiting hole is greater than or equal to the diameter of the metal sphere, the radial depth of the limiting hole is less than the diameter of the metal sphere, and the radial depth of the limiting hole is greater than the radius of the metal sphere.

[0013] Furthermore, four balancing blocks are embedded in the annular channel, and the four balancing blocks are slidably arranged in the annular channel.

[0014] Furthermore, the grinding wheel flange is provided with a dial for indicating the installation angle position of each balancing block, and the balancing block is provided with an indicating portion corresponding to the scale on the dial.

[0015] Furthermore, the metal sphere is a steel ball, an aluminum ball or a copper ball.

[0016] Based on the above problems existing in the prior art, a second purpose of the embodiments of the utility model is to provide a grinding machine having a grinding wheel with a balanced structure in any of the above solutions.

[0017] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a grinding machine, including the grinding wheel with a balancing structure provided by any of the above-mentioned solutions.

[0018] Compared with the prior art, the above one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects:

[0019] In the embodiment of the utility model, the grinding wheel and the grinding machine with a balancing structure are characterized in that the grinding wheel body is installed on the grinding wheel shaft through the grinding wheel flange, and an annular groove is arranged on the grinding wheel flange around the rotation center of the grinding wheel, and a plurality of balancing blocks are embedded in the annular groove on the grinding wheel flange, and the balancing blocks are respectively provided with limiting holes for installing metal spheres and positioning holes for inserting top holding fixtures. When configuring the balancing blocks on the grinding wheel flange, it is only necessary to embed the balancing blocks in the annular groove on the grinding wheel flange, and embed the metal spheres in the limiting holes on the balancing blocks, and then insert and fix the top holding fixtures in the positioning holes, and press the metal spheres toward the corresponding groove surfaces of the annular grooves through the top holding fixtures, so as to press the metal spheres tightly against the annular grooves on the grinding wheel flange, so that the balancing blocks are firmly and stably positioned on the annular grooves on the grinding wheel flange through the fixing structure of the top holding fixtures and the metal spheres. Since the grinding wheel flange is equipped with a balancing block, the grinding wheel body can maintain a balanced state during high-speed rotation, which is beneficial to improving the grinding accuracy of the grinding wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 A schematic diagram of a structure with a balanced structure provided by an embodiment of the utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along line AA;

[0023] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure;

[0024] Figure 4 A schematic cross-sectional view of a balancing assembly provided in an embodiment of the utility model;

[0025] Figure 5 A schematic diagram of the three-dimensional structure of a balancing weight provided in an embodiment of the utility model.

[0026] Among them, the reference numerals in the figure are:

[0027] 1-basic assembly; 11-grinding wheel shaft; 111-neck section; 112-head end; 113-tail end; 12-grinding wheel flange; 121-conical shaft hole; 13-pressing cover body; 14-locking nut; 15-nut washer; 16-grinding wheel body;

[0028] 2-Balance assembly; 21-Balance block; 22-Metal sphere; 23-Top holding fixture;

[0029] 3-annular channel; 31-outer channel surface; 32-inner channel surface;

[0030] 4-limiting hole; 5-positioning hole; 6-hexagonal hole;

[0031] 7-conical pressing portion; 8-dials; 9-indicating portion. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] It should be noted that when an element is referred to as being "connected to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0034] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a dedicated orientation, be constructed and operated in a dedicated orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] Reference throughout the specification to "one embodiment" or "an embodiment" means that the specialized features, structures, or characteristics described in connection with the embodiment are included in at least one embodiment of the present application. Thus, the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, not all of which refer to the same embodiment. Furthermore, in one or more embodiments, the specialized features, structures, or characteristics may be combined in any suitable manner.

[0038] Please also read Figures 1 to 5 The grinding wheel with a balanced structure provided in the embodiment of the utility model is now described. The grinding wheel with a balanced structure provided in the embodiment of the utility model can always be in a balanced state during the high-speed rotation of the grinding wheel body 16, so that the grinding workpiece has high precision and the processing quality of the workpiece is greatly improved.

[0039] Please refer to further Figure 1 , Figure 2 and Figure 3 The grinding wheel with a balancing structure provided by the embodiment of the utility model comprises a basic component 1 and a balancing component 2. The basic component 1 comprises a grinding wheel shaft 11, a grinding wheel flange 12 and a grinding wheel body 16. The grinding wheel shaft 11 is used to be rotatably mounted on the grinding wheel frame of the grinding machine. The grinding wheel flange 12 is fixedly sleeved on the grinding wheel shaft 11. The grinding wheel body 16 is arranged on the grinding wheel flange 12. An annular channel 3 is arranged on the grinding wheel flange 12 around the rotation center of the grinding wheel. The center of the annular channel 3 coincides with the center of the annular grinding wheel body 16. Please refer to further Figure 3 , Figure 4 and Figure 5The balancing assembly 2 includes a balancing block 21, a metal sphere 22 and a top holding fixture 23. A plurality of balancing blocks 21 are embedded in the annular channel 3 on the grinding wheel flange 12, and the plurality of balancing blocks 21 are evenly arranged in the annular channel 3. Each balancing block 21 is equipped with at least one metal sphere 22, and the metal sphere 22 is used to cooperate with the top holding fixture 23 to clamp and fix the balancing block 21. The top holding fixture 23 is used to press the metal sphere 22 so that the metal sphere 22 is tangent to the corresponding channel surface of the annular channel 3. The balancing block 21 is provided with a limiting hole 4 for installing the metal sphere 22 and a positioning hole 5 for inserting the top holding fixture 23. The metal sphere 22 is embedded in the limiting hole 4, and the positioning hole 5 is connected with the limiting hole 4. The top holding fixture 23 is detachably inserted into the positioning hole 5. When the top holding fixture 23 is inserted and fixed in the positioning hole 5, the top holding fixture 23 presses the metal ball 22 toward the corresponding channel surface of the annular channel 3, so that the part of the spherical surface of the metal ball 22 protruding outside the balancing block 21 abuts against the corresponding channel surface of the annular channel 3, thereby tightly pressing the metal ball 22 against the annular channel 3 on the grinding wheel flange 12, and then firmly positioning the balancing block 21 on the annular channel 3 on the grinding wheel flange 12, so that the installation and fixing structure of the balancing block 21 is simple and reliable, and it is convenient for the rapid positioning and installation of the balancing block 21. When the top holding fixture 23 is separated from the positioning hole 5, the metal ball 22 rolls in contact with the corresponding channel surface of the annular channel 3, so that the balancing block 21 can slide along the path defined by the annular channel 3, so as to adjust the installation position of the balancing block 21. In this way, when it is detected that the grinding wheel body 16 is in an unbalanced state during high-speed rotation, after the grinding wheel body 16 stops rotating, it can slide along the path defined by the annular channel 3 to adjust the position of the balancing block 21 until the grinding wheel body 16 is in a balanced state, and then the top holding fixture 23 is inserted and fixed in the positioning hole 5, so that the top holding fixture 23 presses the metal ball 22 toward the corresponding channel surface of the annular channel 3, and the balancing block 21 can be firmly positioned on the annular channel 3 on the grinding wheel flange 12. In addition, the balancing assembly 2 can be quickly disassembled and installed, which can shorten the time for balancing and debugging the grinding wheel body 16 and improve the efficiency of balancing and debugging the grinding wheel body 16.

[0040] Compared with the prior art, the grinding wheel with a balancing structure provided in the embodiment of the utility model is characterized in that a grinding wheel body 16 is installed on a grinding wheel shaft 11 through a grinding wheel flange 12, an annular channel 3 is arranged on the grinding wheel flange 12 around the rotation center of the grinding wheel, a plurality of balancing blocks 21 are embedded in the annular channel 3 on the grinding wheel flange 12, and the balancing blocks 21 are respectively provided with limiting holes 4 for installing metal spheres 22 and positioning holes 5 for inserting top holding fixings 23. When the balancing block 21 is arranged on the grinding wheel flange 12, it is only necessary to embed the balancing block 21 in the annular channel 3 on the grinding wheel flange 12, embed the metal ball 22 in the limiting hole 4 on the balancing block 21, and then insert and fix the top holding fixture 23 in the positioning hole 5, and press the metal ball 22 toward the corresponding channel surface of the annular channel 3 through the top holding fixture 23, so as to press the metal ball 22 tightly against the annular channel 3 on the grinding wheel flange 12, so that the balancing block 21 is firmly and stably positioned on the annular channel 3 on the grinding wheel flange 12 through the fixing structure of the top holding fixture 23 and the metal ball 22. Since the balancing block 21 is arranged on the grinding wheel flange 12, the grinding wheel body 16 can maintain a balanced state during high-speed rotation, which is conducive to improving the grinding accuracy of the grinding wheel.

[0041] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments, the limiting hole 4 extends along the radial direction of the grinding wheel shaft 11, and the positioning hole 5 extends along the axial direction of the grinding wheel shaft 11. After the metal sphere 22 is embedded in the limiting hole 4 on the balancing block 21, it is only necessary to insert and fix the supporting fixture 23 in the positioning hole 5. The metal sphere 22 can be pressed along the radial direction of the grinding wheel shaft 11 and toward the corresponding channel surface of the annular channel 3 by the supporting fixture 23, which is beneficial to further improve the tightness and firmness between the metal sphere 22 and the corresponding channel surface of the annular channel 3.

[0042] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments, the supporting fixture 23 is a top screw, and the positioning hole 5 is a top screw hole with an internal thread. By screwing the top screw into the top screw hole, the metal sphere 22 can be pressed along the radial direction of the grinding wheel shaft 11 and toward the corresponding channel surface of the annular channel 3, which is beneficial to improve the tightness and firmness between the metal sphere 22 and the corresponding channel surface of the annular channel 3.

[0043] Please refer to Figure 2 and Figure 3In some embodiments, the first end of the top screw is provided with an inner hexagonal hole 6 or an inner octagonal hole, and the second end of the top screw is provided with a tapered pressing portion 7, and the diameter of the tapered pressing portion 7 gradually decreases from the first end of the top screw to the second end of the top screw. The metal ball 22 can be gradually pressed by the tapered inclined surface of the tapered pressing portion 7 of the top screw, so that the metal ball 22 can gradually abut against the corresponding channel surface of the annular channel 3 along the radial direction of the grinding wheel shaft 11, thereby avoiding excessive holding force of the top screw, which may cause the metal ball 22 to shift and affect the position accuracy of the installation of the balance block 21.

[0044] Please refer to Figure 1 and Figure 5 In some of the embodiments, in order to enhance the stability of the installation of the balancing block 21 and improve the balance adaptability of the balancing block 21 and the grinding wheel body 16, two limiting holes 4 and two top screw holes are provided on the balancing block 21. The two top screw holes are arranged in a one-to-one correspondence with the two limiting holes 4. A metal sphere 22 is provided in each limiting hole 4, and a top screw is provided in each top screw hole.

[0045] Please refer to Figure 1 , Figure 2 and Figure 3 In some of the embodiments, in order to ensure that the top screw can press the metal sphere 22 toward the corresponding channel surface of the annular channel 3 so that the part of the spherical surface of the metal sphere 22 protruding outside the balance block 21 abuts against the corresponding channel surface of the annular channel 3, the diameter of the limiting hole 4 is greater than or equal to the diameter of the metal sphere 22, the radial depth of the limiting hole 4 is less than the diameter of the metal sphere 22, and the radial depth of the limiting hole 4 is greater than the radius of the metal sphere 22.

[0046] Please refer to Figure 1 In some embodiments, four balancing blocks 21 are embedded in the annular channel 3, and the four balancing blocks 21 are slidably arranged in the annular channel 3, which is conducive to facilitating the adjustment of the balance of the grinding wheel body 16 and shortening the adjustment time of the balance of the grinding wheel body 16. It should be noted that the side of each balancing block 21 facing away from the grinding wheel shaft 11 is provided with an arc surface adapted to the outer channel surface 31 of the annular channel 3, and the side of each balancing block 21 facing the grinding wheel shaft 11 is provided with an arc surface adapted to the inner channel surface 32 of the annular channel 3, so that the balancing block 21 can slide smoothly in the annular channel 3, so as to adjust the position of the balancing block 21, accurately adjust the position of the balancing block 21, and improve the adaptability of the balancing block 21 and the grinding wheel body 16.

[0047] Please refer to Figure 1In some embodiments, a dial 8 for indicating the installation angle position of each balancing block 21 is provided on the grinding wheel flange 12, and an indicating portion 9 corresponding to the scale on the dial 8 is provided on the balancing block 21. By aligning or aligning the indicating portion 9 with the corresponding scale on the dial 8, the balancing block 21 can be conveniently and accurately installed on the grinding wheel flange 12, shortening the time required for the grinding wheel body 16 to frequently adjust the position of the balancing block 21 for balancing and debugging, and facilitating further improving the compatibility of the balancing block 21 with the grinding wheel body 16. It should be noted that the indicating portion 9 can be an indicating mark such as an indicating arrow, an indicating line, a groove, a gap or a protrusion provided on the balancing block 21.

[0048] It can be understood that in some of the embodiments, the metal ball 22 can be, but is not limited to, a steel ball. The metal ball 22 can also be an aluminum ball or a copper ball.

[0049] Please refer to Figure 1 and Figure 2 In some embodiments, the basic component 1 also includes a pressing cover 13 for pressing the grinding wheel body 16 against the grinding wheel flange 12. By pressing the grinding wheel body 16 against the grinding wheel flange 12 through the pressing cover 13, not only the convenience and stability of installing the grinding wheel body 16 on the grinding wheel body 16 can be enhanced, but also the balance of the rotation of the grinding wheel body 16 and the adaptability of the balance block 21 and the grinding wheel body 16 can be improved.

[0050] Please refer to Figure 1 and Figure 2 In some embodiments, the basic component 1 further includes a fastening nut 14 and a nut washer 15. The grinding wheel flange 12 is provided with a tapered shaft hole 121 for the grinding wheel shaft 11 to pass through. The grinding wheel shaft 11 is a tapered structure with a gradually decreasing diameter adapted to the tapered shaft hole 121. The diameter of the head end 112 of the grinding wheel shaft 11 is larger than the diameter of the tail end 113 of the grinding wheel shaft 11. The tail end 113 of the grinding wheel shaft 11 is provided with a necking section 111 with an external thread. The nut washer 15 is sleeved on the necking section 111, and the fastening nut 14 is screwed on the necking section 111. By rotating the fastening nut 14, the grinding wheel shaft 11 is inserted and fixed in the tapered shaft hole 121 on the grinding wheel flange 12, so as to achieve a stable connection between the grinding wheel shaft 11 and the grinding wheel flange 12.

[0051] The embodiment of the utility model also provides a grinding machine, which includes the grinding wheel with a balanced structure provided by any of the above embodiments. Since the grinding machine has all the technical features of the grinding wheel with a balanced structure provided by any of the above embodiments, it has the same technical effect as the grinding wheel with a balanced structure.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grinding wheel with a balanced structure, characterized in that: include: A basic component, comprising a grinding wheel shaft rotatably mounted on a grinding wheel frame of a grinding machine, a grinding wheel flange fixedly mounted on the grinding wheel shaft, and a grinding wheel body arranged on the grinding wheel flange, wherein an annular groove is arranged on the grinding wheel flange around the rotation center of the grinding wheel; and A balancing assembly, comprising a plurality of balancing blocks for embedding in the annular channel, a metal ball for engaging and fixing the balancing block, and a holding fixture for pressing the metal ball so that the metal ball is tangent to the corresponding channel surface of the annular channel, wherein the balancing block is provided with a limiting hole for installing the metal ball and a positioning hole for inserting the holding fixture, the metal ball is embedded in the limiting hole, and the positioning hole is communicated with the limiting hole; Wherein, when the supporting fixture is inserted into and fixed in the positioning hole, the supporting fixture presses the metal sphere so that the part of the spherical surface of the metal sphere protruding outside the balancing block abuts against the corresponding channel surface of the annular channel; when the supporting fixture is disengaged from the positioning hole, the metal sphere rolls in contact with the corresponding channel surface of the annular channel so that the balancing block can slide along the path defined by the annular channel.

2. The grinding wheel with a balanced structure according to claim 1, characterized in that: The limiting hole extends along the radial direction of the grinding wheel shaft, and the positioning hole extends along the axial direction of the grinding wheel shaft.

3. The grinding wheel with a balanced structure according to claim 1, characterized in that: The holding fixture is a top screw, and the positioning hole is a top screw hole with internal threads.

4. The grinding wheel with a balanced structure as claimed in claim 3, characterized in that: The first end of the top screw is provided with an inner hexagonal hole or an inner octagonal hole, and the second end of the top screw is provided with a conical pressing portion, and the diameter of the conical pressing portion gradually decreases from the first end of the top screw to the second end of the top screw.

5. The grinding wheel with a balanced structure as claimed in claim 3, characterized in that: The balancing block is provided with two limiting holes and two top screw holes, the two top screw holes are arranged in one-to-one correspondence with the two limiting holes, each limiting hole is provided with a metal sphere, and each top screw hole is provided with a top screw.

6. The grinding wheel with a balanced structure according to claim 1, characterized in that: The diameter of the limiting hole is greater than or equal to the diameter of the metal sphere, the radial depth of the limiting hole is less than the diameter of the metal sphere, and the radial depth of the limiting hole is greater than the radius of the metal sphere.

7. The grinding wheel with a balanced structure according to claim 1, characterized in that: Four balancing blocks are embedded in the annular groove, and the four balancing blocks are slidably arranged in the annular groove.

8. The grinding wheel with a balanced structure according to claim 7, characterized in that: The grinding wheel flange is provided with a dial for indicating the installation angle position of each balancing block, and the balancing block is provided with an indicating portion corresponding to the scale on the dial.

9. The grinding wheel with a balanced structure according to any one of claims 1 to 8, characterized in that: The metal sphere is a steel ball, an aluminum ball or a copper ball.

10. A grinding machine, characterized in that: The invention comprises a grinding wheel with a balancing structure as claimed in any one of claims 1 to 9.

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