Sample clamping assembly for grinding machine

Abstract

The sample clamping assembly for the grinding machine comprises a base and a movable part, the base comprises a bottom plate and a first side plate, the bottom plate is configured to be in magnetic attraction fit with an electromagnetic platform of the grinding machine, the first side plate is connected with the bottom plate in a bent mode, and the movable part is movably connected with the bottom plate and arranged opposite to the first side plate; the movable part is suitable for moving in the direction close to or away from the first side plate relative to the bottom plate, and a clamping space is defined between the movable part and the first side plate. The base is provided with a grinding wheel cutter, and the grinding wheel cutter is located on the outer side of the clamping space and used for grinding a grinding wheel. According to the sample clamping assembly for the grinding machine, the stability of the sample on the electromagnetic platform can be improved, then the risks that the sample is not ground horizontally and flies out to hurt people are reduced in the grinding process, particularly, the sample clamping assembly for the grinding machine can achieve grinding of a grinding wheel, and the grinding efficiency is improved. And the application range of the sample clamping assembly for the grinding machine is expanded.

Description

Technical Field

[0001] This application relates to the technical field of grinding machines, and particularly to a specimen clamping assembly for a grinding machine. Background Art

[0002] Currently, when testing the performance of specimens such as steel plates or other steel structures, it is usually necessary to grind the specimens using a grinding machine. The working principle of the grinding machine is to adsorb the specimen on an electromagnetic platform and then grind it with a grinding wheel. However, for tensile specimens, metallographic specimens, etc., due to their small contact area with the platform, it is easy to cause the specimens to be adsorbed insecurely, and it is easy to occur that the specimens are not ground horizontally during the grinding process, or even the specimens fly out and hurt people. Summary of the Invention

[0003] This application aims to solve at least one of the technical problems existing in the prior art. For this purpose, this application provides a specimen clamping assembly for a grinding machine, which is convenient for improving the stability of the specimen on the electromagnetic platform, and further reducing the risk of the specimen not being ground horizontally and the specimen flying out and hurting people during the grinding process. In particular, the specimen clamping assembly for a grinding machine can realize the dressing of the grinding wheel, thereby expanding the application range of the specimen clamping assembly for a grinding machine.

[0004] The specimen clamping assembly for a grinding machine according to an embodiment of this application includes: a base, the base includes a bottom plate and a first side plate, the bottom plate is configured to be magnetically attracted and cooperated with the electromagnetic platform of the grinding machine, and the first side plate is bent and connected to the bottom plate; a movable member, the movable member is movably connected to the bottom plate and is disposed opposite to the first side plate, the movable member is adapted to move relative to the bottom plate in a direction approaching or departing from the first side plate, and a clamping space is defined between the movable member and the first side plate; wherein, a grinding wheel cutter is provided on the base, and the grinding wheel cutter is located outside the clamping space and is used for dressing the grinding wheel.

[0005] For the specimen clamping assembly for a grinding machine according to an embodiment of this application, its base can be magnetically attracted and cooperated with the electromagnetic platform of the grinding machine, and the movable member can move relative to the bottom plate in a direction approaching or departing from the first side plate to adjust the size of the clamping space, so as to facilitate clamping specimens of different sizes. At the same time, since the contact area between the base and the electromagnetic platform can be designed according to requirements, for tensile specimens, metallographic specimens, etc., the contact area between the base and the electromagnetic platform can be designed to be larger than the contact area between the specimen and the electromagnetic platform, thereby facilitating improving the stability of the specimen on the electromagnetic platform, and further reducing the risk of the specimen not being ground horizontally and the specimen flying out and hurting people during the grinding process. In particular, the setting of the grinding wheel cutter can realize the dressing of the grinding wheel of the grinding machine, so that the specimen clamping assembly for a grinding machine can realize the dressing of the grinding wheel, thereby expanding the application range of the specimen clamping assembly for a grinding machine.

[0006] According to the sample clamping assembly for a grinder in some embodiments of the present application, the grinding wheel cutter is fixedly connected to the first side plate.

[0007] According to the sample clamping assembly for a grinder in some embodiments of the present application, the grinding wheel cutter is installed at an end of the first side plate facing away from the bottom plate, and the orthographic projection of the grinding wheel cutter on the first side plate falls within the first side plate.

[0008] According to the sample clamping assembly for a grinder in some embodiments of the present application, a mounting hole is provided on the first side plate, and a portion of the grinding wheel cutter is inserted into the mounting hole.

[0009] According to some embodiments of the present application, the sample clamping assembly for a grinder further includes: a top screw, through which the grinding wheel cutter cooperates with the mounting hole at an axial upper limit position of the mounting hole.

[0010] According to some embodiments of the sample clamping assembly for a grinder of the present application, the surface of the first side plate facing the clamping space is a plane; and / or the surface of the movable part facing the clamping space is a plane.

[0011] According to some embodiments of the present application, the sample clamping assembly for a grinder further includes: a second side plate, the second side plate is connected to the bottom plate and defines an installation space with the first side plate, and the movable part is located in the installation space.

[0012] According to some embodiments of the present application, the sample clamping assembly for a grinder further includes: a driving assembly, an output end of which is connected to the movable part and is used to drive the movable part to move toward or away from the first side plate.

[0013] According to some embodiments of the present application, a sample clamping assembly for a grinder, the driving assembly includes a threaded rod and a nut, the axial direction of the threaded rod is the same as the distribution direction of the movable part and the first side plate, and the threaded rod is sequentially penetrated through the second side plate and the movable part, the nut is installed on the movable part and threadedly matched with the threaded rod, and the movable rod and the base plate are matched in the circumferential upper limit position of the threaded rod.

[0014] According to some embodiments of the sample clamping assembly for a grinder of the present application, one of the base plate and the movable part is provided with a mating groove and the other is provided with a mating protrusion, the mating groove extends along the distribution direction from the second side plate to the first side plate, the mating protrusion is inserted into the mating groove and slidably cooperates with the mating groove, and the mating protrusion cooperates with the mating groove in the circumferential upper limit position of the threaded rod.

[0015] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0016] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a schematic diagram of a specimen clamping assembly for a grinding machine according to some embodiments of the present application.

[0018] Reference Numerals:

[0019] Specimen clamping assembly 100 for a grinding machine;

[0020] Base 10; bottom plate 11; mating groove 111; first side plate 12; second side plate 13;

[0021] Moving member 20; clamping space 30;

[0022] Grinding wheel cutter 40; threaded rod 51; wrench 60. Detailed Description of the Embodiments

[0023] In order to better understand the technical solutions provided in the embodiments of the present specification, the technical solutions of the embodiments of the present specification will be described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific features in the embodiments of the present specification and the embodiments are detailed descriptions of the technical solutions of the embodiments of the present specification, rather than limitations on the technical solutions of the present specification. Without conflict, the technical features in the embodiments of the present specification and the embodiments may be combined with each other.

[0024] In this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element. The term "more than two" includes two or more than two.

[0025] At present, when performing performance testing on steel plates or other steel structure specimens, it is usually necessary to use a grinder to grind the specimens. The working principle of the grinder is to adsorb the specimens on an electromagnetic platform and then grind them with a grinding wheel. However, for tensile specimens, metallographic specimens, etc., since their contact area with the platform is small, this can easily lead to loose adsorption of the specimens, and during the grinding process, it is easy for the specimens to be ground unevenly or even fly out and injure people.

[0026] To this end, the present application proposes a sample clamping assembly 100 for a grinding machine.

[0027] Please refer to the following Figure 1 A sample holding assembly 100 for a grinding machine according to an embodiment of the present application is described.

[0028] According to the embodiment of the present application, the sample clamping assembly 100 for a grinding machine includes: a base 10 , a movable part 20 and a grinding wheel cutter 40 .

[0029] like Figure 1 As shown, the base 10 includes a bottom plate 11 and a first side plate 12, the bottom plate 11 is configured to be magnetically matched with the electromagnetic platform of the grinder, the first side plate 12 is connected to the bottom plate 11 by bending, the movable part 20 is movably connected to the bottom plate 11 and is arranged opposite to the first side plate 12, the movable part 20 is suitable for moving relative to the bottom plate 11 toward or away from the first side plate 12, and a clamping space 30 is defined between the movable part 20 and the first side plate 12; wherein a grinding wheel cutter 40 is provided on the base 10, the grinding wheel cutter 40 is located outside the clamping space 30 and is used for grinding the grinding wheel.

[0030] It can be understood that the sample clamping assembly 100 for a grinder of the present application is used to adapt to the electromagnetic platform of the grinder. The grinder includes a grinder frame, an electromagnetic platform and a grinding wheel. The electromagnetic platform is arranged on the grinder frame and is used to fix the sample. The grinding wheel can be movably installed on the grinder frame and is used to grind the sample.

[0031] For example, the actual usage process can be: the sample clamping assembly 100 for the grinder is placed on the electromagnetic platform, and then the electromagnetic platform is magnetized to make the bottom plate 11 and the electromagnetic platform magnetically fit together, and then the position of the movable part 20 is adjusted relative to the bottom plate 11 to make the movable part 20 move toward or away from the first side plate 12, thereby adjusting the distance between the movable part 20 and the first side plate 12.

[0032] For example, when the sample needs to be placed in the clamping space 30, the movable part 20 can be first controlled to move in a direction away from the first side plate 12 so as to more easily place the sample between the first side plate 12 and the movable part 20, and then the movable part 20 can be controlled to move in a direction close to the first side plate 12 to clamp the sample between the first side plate 12 and the movable part 20, and then the sample can be ground using the grinding wheel of the grinder.

[0033] As a result, it is easy to clamp the sample, so that the sample is indirectly fixed on the electromagnetic platform. Since the contact area between the base 10 and the electromagnetic platform can be designed according to needs, for example, the contact area between the bottom plate 11 and the electromagnetic platform can be designed to be larger, thereby enhancing the adsorption stability of the bottom plate 11 and the electromagnetic platform, and then enhancing the structural stability of the sample indirectly fixed on the electromagnetic platform. At the same time, the contact area between the bottom plate 11 and the electromagnetic platform is not affected by the contact area between the sample and the electromagnetic platform when the sample is directly adsorbed on the electromagnetic platform.

[0034] In this way, for tensile specimens, metallographic specimens, etc., the contact area between the base 10 and the electromagnetic platform can be designed to be larger than the contact area between the specimen and the electromagnetic platform, thereby facilitating the improvement of the stability of the specimen on the electromagnetic platform, and further reducing the risk of uneven specimen grinding and the risk of the specimen flying out and injuring people during the grinding process.

[0035] At the same time, since a clamping space 30 for clamping the sample is defined between the movable member 20 and the first side plate 12, the size of the clamping space 30 can be changed by changing the distance between the movable member 20 and the first side plate 12, thereby facilitating the clamping of samples of different sizes.

[0036] Furthermore, a grinding wheel cutter 40 is provided on the base 10, and the grinding wheel cutter 40 is located outside the clamping space 30 and is used to grind the grinding wheel. It is understandable that the grinding wheel cutter 40 is located outside the clamping space 30 to avoid interference between the grinding wheel cutter 40 and the sample when the first side plate 12 and the movable member 20 clamp the sample, thereby protecting the grinding wheel cutter 40. At the same time, the grinding wheel cutter 40 can grind the grinding wheel, thereby improving the processing surface quality of the grinding wheel, and further improving the processing accuracy of the grinding wheel.

[0037] In particular, the grinding wheel cutter 40 used for grinding the grinding wheel is integrated into the base 10, so that the grinding of the sample and the grinding of the grinding wheel can be carried out simultaneously, and a new grinding wheel online grinding process is developed.

[0038] According to the sample clamping assembly 100 for a grinder according to the embodiment of the present application, its base 10 can be magnetically matched with the electromagnetic platform of the grinder, and the movable part 20 can move relative to the bottom plate 11 in a direction close to or away from the first side plate 12 to adjust the size of the clamping space 30, thereby facilitating the clamping of samples of different sizes. At the same time, since the contact area between the base 10 and the electromagnetic platform can be designed according to demand, for tensile samples, metallographic samples, etc., the contact area between the base 10 and the electromagnetic platform can be designed to be larger than the contact area between the sample and the electromagnetic platform, thereby facilitating the improvement of the stability of the sample on the electromagnetic platform, thereby reducing the risk of uneven sample grinding and the risk of the sample flying out and injuring people during the grinding process. In particular, the setting of the grinding wheel cutter 40 can realize the grinding of the grinding wheel of the grinder, so that the sample clamping assembly 100 for the grinder can realize the grinding of the grinding wheel, thereby expanding the scope of application of the sample clamping assembly 100 for the grinder.

[0039] In some embodiments, Figure 1 As shown, the grinding wheel cutter 40 is fixedly connected to the first side plate 12 .

[0040] It can be understood that the setting of the grinding wheel cutter 40 on the first side plate 12 can avoid the influence of the setting of the grinding wheel cutter 40 on the magnetic attraction cooperation between the base plate 11 and the electromagnetic platform, and facilitates the design of the grinding wheel cutter 40 being located outside the clamping space 30.

[0041] In some embodiments, Figure 1 As shown, the grinding wheel cutter 40 is installed at one end of the first side plate 12 away from the bottom plate 11 , and the orthographic projection of the grinding wheel cutter 40 on the first side plate 12 falls within the first side plate 12 .

[0042] As a result, the setting of the grinding wheel cutter 40 will not interfere with the base plate 11, and the grinding wheel cutter 40 is installed at the end of the first side plate 12 away from the base plate 11, which is convenient for reducing the difficulty of setting the grinding wheel cutter 40. In particular, the positive projection of the grinding wheel cutter 40 on the first side plate 12 falls within the first side plate 12, so that the grinding wheel cutter 40 will not protrude from the side of the first side plate 12, thereby not occupying the space in the thickness direction of the first side plate 12, that is, the grinding wheel cutter 40 will not extend into the clamping space 30, so that when the first side plate 12 and the movable part 20 clamp the sample, the grinding wheel cutter 40 can be avoided from interfering with the sample, thereby protecting the grinding wheel cutter 40.

[0043] In some embodiments, a mounting hole is provided on the first side plate 12, and a portion of the grinding wheel cutter 40 is inserted into the mounting hole. Thus, the connection stability between the grinding wheel cutter 40 and the first side plate 12 is enhanced, and the setting of the mounting hole is relatively simple, which is conducive to reducing the difficulty of setting.

[0044] In some embodiments, the specimen clamping assembly 100 for a grinding machine further includes: a setscrew (not shown in the figure), and the grinding wheel cutter 40 is axially limited and fitted with the mounting hole through the setscrew. Thus, the setting of the setscrew can reduce the axial movement of the grinding wheel cutter 40, thereby enhancing the connection stability between the grinding wheel cutter 40 and the first side plate 12, and further ensuring the grinding effect of the grinding wheel cutter 40 on the grinding wheel.

[0045] In some embodiments, as Figure 1 shown, the surface of the first side plate 12 facing the clamping space 30 is a flat surface.

[0046] It can be understood that the surface of the first side plate 12 facing the clamping space 30 is used to contact the specimen. Setting the surface of the first side plate 12 facing the clamping space 30 as a flat surface facilitates increasing the contact area between the first side plate 12 and the specimen, thereby improving the clamping stability.

[0047] In some embodiments, as Figure 1 shown, the surface of the movable member 20 facing the clamping space 30 is a flat surface

[0048] It can be understood that the surface of the movable member 20 facing the clamping space 30 is used to contact the specimen. Setting the surface of the movable member 20 facing the clamping space 30 as a flat surface facilitates increasing the contact area between the movable member 20 and the specimen, thereby improving the clamping stability.

[0049] In some embodiments, as Figure 1 shown, both the surface of the first side plate 12 facing the clamping space 30 and the surface of the movable member 20 facing the clamping space 30 are flat surfaces.

[0050] It can be understood that the surface of the first side plate 12 facing the clamping space 30 and the surface of the movable member 20 facing the clamping space 30 are used to contact the specimen. Setting both the surface of the first side plate 12 facing the clamping space 30 and the surface of the movable member 20 facing the clamping space 30 as flat surfaces facilitates increasing the contact area between the specimen and the first side plate 12 and the movable member 20, thereby improving the clamping stability.

[0051] In some embodiments, as Figure 1 shown, the specimen clamping assembly 100 for a grinding machine further includes: a second side plate 13.

[0052] The second side plate 13 is connected to the bottom plate 11 and defines an installation space with the first side plate 12, and the movable member 20 is located in the installation space. Therefore, the movable member 20 can move in the installation space, and the range of movement of the movable member 20 is limited to the distance between the first side plate 12 and the second side plate 13. In particular, when the size of the sample is large and the distance between the movable member 20 and the first side plate 12 is the farthest, the movable member 20 can be abutted against the second side plate 13, so that the second side plate 13 plays a certain supporting role on the movable member 20.

[0053] In some embodiments, the sample clamping assembly 100 for a grinding machine further includes a driving assembly, the output end of which is connected to the movable member 20 and is used to drive the movable member 20 to move toward or away from the first side plate 12 .

[0054] For example, the driving component may be an electric telescopic rod, or a linear cylinder or other mechanism capable of realizing linear motion in the distribution direction of the first side plate 12 and the second side plate 13, which is not limited here. Thus, the driving member can be used to drive the motion of the movable member 20, thereby reducing the difficulty of position adjustment of the movable member 20.

[0055] In some embodiments, Figure 1 As shown, the driving assembly includes a threaded rod 51 and a nut (not shown in the figure). The axial direction of the threaded rod 51 is the same as the distribution direction of the movable part 20 and the first side plate 12, and is sequentially penetrated through the second side plate 13 and the movable part 20. The nut is fixedly mounted on the movable part 20 and threadedly matched with the threaded rod 51. The movable part 20 and the base plate 11 are matched at the circumferential upper limit of the threaded rod 51.

[0056] Therefore, by setting the movable part 20 and the base plate 11 to cooperate with the circumferential upper limit position of the threaded rod 51, and the nut is set on the movable part 20, the nut and the base plate 11 are cooperated with the circumferential upper limit position of the threaded rod 51, that is, the nut will not rotate relative to the base plate 11. In this way, when the threaded rod 51 rotates, the nut will move linearly along the axial direction of the threaded rod 51, so that the nut drives the movable part 20 to move along the axial direction of the threaded rod 51 to realize the movement of the movable part 20 toward or away from the first side plate 12, and the control accuracy of the coordinated movement of the threaded rod 51 and the nut is higher, which is convenient for improving the adjustment accuracy of the movable part 20.

[0057] In some embodiments, Figure 1 As shown, one of the base plate 11 and the movable part 20 is provided with a mating groove 111 and the other is provided with a mating protrusion (not shown in the figure), the mating groove 111 extends along the distribution direction from the second side plate 13 to the first side plate 12, the mating protrusion is inserted into the mating groove 111 and slidably cooperates with the mating groove 111, and the mating protrusion and the mating groove 111 are engaged at the circumferential upper limit of the threaded rod 51.

[0058] For example, the movable member 20 is provided with a matching protrusion, and as Figure 1 As shown, the base plate 11 is provided with a mating groove 111, so that when the movable part 20 moves relative to the base plate 11, since the mating protrusion is inserted into the mating groove 111 and slidably cooperates with the mating groove 111, the mating groove 111 can play a guiding role in the movement direction of the movable part 20, thereby ensuring the movement stability of the movable part 20. At the same time, the mating protrusion and the mating groove 111 cooperate at the circumferential upper limit of the threaded rod 51, so that the nut fixedly arranged on the movable part 20 cooperates with the base plate 11 at the circumferential upper limit of the threaded rod 51, that is, the nut will not rotate relative to the base plate 11. In this way, when the threaded rod 51 rotates, the nut will perform a linear motion along the axial direction of the threaded rod 51, so that the nut drives the movable part 20 to move along the axial direction of the threaded rod 51.

[0059] In some embodiments, Figure 1 As shown, the sample clamping assembly 100 for the grinder further includes a wrench 60 , which is connected to the threaded rod 51 and is used to control the rotation of the threaded rod 51 . In this way, the wrench 60 is conveniently used to realize the rotation of the threaded rod 51 , thereby realizing the movement of the movable part 20 .

[0060] The following is combined with Figure 1 The specific embodiment of the sample clamping assembly 100 for a grinding machine of the present application is described as follows:

[0061] The sample clamping assembly 100 for a grinder comprises a base 10, a movable part 20, a grinding wheel cutter 40, a threaded rod 51, a wrench 60, etc. The movable part 20 and the first side plate 12 are used to clamp the sample, the grinding wheel cutter 40 is arranged on the first side plate 12 through a mounting hole and is placed in the mounting hole, and then fixed with a top screw, and the wrench 60 is used to rotate the threaded rod 51 to realize the movement of the movable part 20.

[0062] In actual use, the sample clamping assembly 100 for the grinder is first placed on the electromagnetic platform, and then the electromagnetic platform is magnetized. The sample to be ground is placed between the first side plate 12 and the movable part 20, and then the wrench 60 is rotated to achieve a firm clamping of the sample. When the grinding wheel needs to be repaired, the grinding wheel is moved above the grinding wheel cutter 40, and the rotating grinding wheel contacts the grinding wheel cutter 40 to achieve grinding of the grinding wheel. Then, the repaired grinding wheel is moved to the sample to be ground and can continue to grind it, thereby achieving the synchronization of sample grinding and grinding wheel repair.

[0063] Therefore, the sample clamping assembly 100 for a grinding machine of the present application has at least the following advantages:

[0064] 1. A sample clamping assembly 100 for a grinder can be manufactured according to the size characteristics of tensile, impact, and metallographic samples and the structural characteristics of a surface grinder. The sample clamping assembly 100 for a grinder can freely adjust the clamping position according to the number of samples to be ground to ensure the firmness of the clamped sample.

[0065] 2. The sample clamping assembly 100 for the grinder also integrates the grinding wheel cutter 40 for grinding the grinding wheel onto the base 10, so that the grinding of the sample and the grinding of the grinding wheel can be carried out simultaneously, and a new online grinding process for the grinding wheel is developed.

[0066] 3. It realizes the grinding of samples of different specifications and sizes without being limited by the adsorption capacity of the magnetic platform.

[0067] Of course, the above embodiments are only for illustration and do not constitute a limitation thereto.

[0068] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0069] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

[0070] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of this specification.

[0071] Obviously, those skilled in the art can make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if these modifications and variations of this specification fall within the scope of the claims of this specification and their equivalents, this specification is also intended to include these modifications and variations.

Claims

1. A sample holding assembly (100) for a grinding machine, characterized in that: include: A base (10), the base (10) comprising a bottom plate (11) and a first side plate (12), the bottom plate (11) being configured to be magnetically matched with an electromagnetic platform of a grinding machine, and the first side plate (12) being connected to the bottom plate (11) by bending; a movable member (20), the movable member (20) being movably connected to the bottom plate (11) and arranged opposite to the first side plate (12), the movable member (20) being adapted to move relative to the bottom plate (11) in a direction approaching or moving away from the first side plate (12), and a clamping space (30) being defined between the movable member (20) and the first side plate (12); Wherein, a grinding wheel cutter (40) is arranged on the base (10), and the grinding wheel cutter (40) is located outside the clamping space (30) and is used for grinding the grinding wheel.

2. The sample holding assembly (100) for a grinding machine according to claim 1, characterized in that: The grinding wheel cutter (40) is fixedly connected to the first side plate (12).

3. The sample holding assembly (100) for a grinding machine according to claim 2, characterized in that: The grinding wheel cutter (40) is installed on one end of the first side plate (12) away from the bottom plate (11), and the orthographic projection of the grinding wheel cutter (40) on the first side plate (12) falls within the first side plate (12).

4. The sample clamping assembly (100) for a grinding machine according to claim 3, characterized in that: The first side plate (12) is provided with a mounting hole, and a portion of the grinding wheel cutter (40) is inserted into the mounting hole.

5. The sample holding assembly (100) for a grinding machine according to claim 4, characterized in that: Also includes: A top screw, wherein the grinding wheel cutter (40) cooperates with the mounting hole at an axial upper limit position of the mounting hole through the top screw.

6. The sample clamping assembly (100) for a grinding machine according to claim 1, characterized in that: The surface of the first side plate (12) facing the clamping space (30) is a plane; And / or the surface of the movable part (20) facing the clamping space (30) is a plane.

7. The sample holding assembly (100) for a grinding machine according to any one of claims 1 to 6, characterized in that: Also includes: A second side plate (13), the second side plate (13) is connected to the bottom plate (11) and defines an installation space with the first side plate (12), and the movable part (20) is located in the installation space.

8. The sample holding assembly (100) for a grinding machine according to claim 7, characterized in that: Also includes: A driving component, wherein an output end of the driving component is connected to the movable member (20) and is used to drive the movable member (20) to move in a direction approaching or away from the first side plate (12).

9. The sample holding assembly (100) for a grinding machine according to claim 8, characterized in that: The driving assembly comprises a threaded rod (51) and a nut. The axial direction of the threaded rod (51) is the same as the distribution direction of the movable part (20) and the first side plate (12), and the threaded rod (51) is sequentially penetrated through the second side plate (13) and the movable part (20). The nut is mounted on the movable part (20) and threadably matched with the threaded rod (51). The movable rod is matched with the bottom plate (11) at the circumferential upper limit position of the threaded rod (51).

10. The sample holding assembly (100) for a grinding machine according to claim 9, characterized in that: One of the bottom plate (11) and the movable part (20) is provided with a matching groove (111) and the other is provided with a matching protrusion, the matching groove (111) extends along the distribution direction from the second side plate (13) to the first side plate (12), the matching protrusion is inserted into the matching groove (111) and slidingly matched with the matching groove (111), and the matching protrusion is matched with the matching groove (111) at the circumferential upper limit position of the threaded rod (51).

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