Repair device for grinding disc

Abstract

The embodiment of the utility model provides a repairing device for a grinding disc. The repairing device comprises a workbench; the multiple supporting blocks are arranged on the table top of the workbench, and the multiple supporting blocks are configured to be capable of supporting the grinding disc at the same height; the first measuring assembly is configured to measure the flatness of the grinding disc; and the grinding tool is used for repairing the surface of the grinding disc.

Description

Technical Field

[0001] The present specification relates to the field of crystal grinding technology, and in particular to a repair device for a grinding disc. Background Art

[0002] A grinder is a device used to grind wafers. During the grinding process, the grinding disc of the grinder contacts the wafer to achieve grinding, so the flatness of the grinding surface of the grinding disc will directly affect the quality of wafer grinding. However, during the processing and use of the grinding disc, the grinding surface of the grinding disc is prone to change. If the grinding disc is repaired with a repairing disc, not only is the repair efficiency low, but the surface shape of the grinding surface of the grinding disc cannot be repaired to an ideal state.

[0003] In order to solve the above problems, some embodiments of the present specification provide a repair device for a grinding disc, which can improve the repair accuracy and repair efficiency of the grinding surface of the grinding disc. Utility Model Content

[0004] Some embodiments of the present specification provide a repair device for a grinding disc, comprising: a workbench; a plurality of support blocks, disposed on the surface of the workbench, the plurality of support blocks being configured to support the grinding disc at the same height; a first measuring component, configured to measure the flatness of the grinding disc; and a grinding tool, for repairing the surface of the grinding disc.

[0005] In some embodiments, the heights of the plurality of support blocks are adjustable; and the repairing device further comprises a second measuring component, which is configured to measure the distance between the grinding disc and the table surface of the workbench.

[0006] In some embodiments, a plurality of blocking blocks are further included, and the plurality of blocking blocks are respectively abutted against the side circumferential wall of the grinding disk.

[0007] In some embodiments, a plurality of guide grooves are formed on the surface of the workbench, and the extension lines of the plurality of guide grooves converge at one point, and the plurality of blocking blocks are movably disposed in different guide grooves.

[0008] In some embodiments, a stop assembly is provided on at least one side of each blocking block along the length direction of the guide groove in which the blocking block is located, and the stop assembly includes a spring, a pressure plate and a toggle portion, and the two ends of the spring are respectively connected to the blocking block and the pressure plate; the pressure plate is pressed against the bottom of the guide groove under the elastic force of the spring; the toggle portion can drive the pressure plate to disengage from the bottom of the guide groove along the axial direction of the spring and compress the spring.

[0009] In some embodiments, the plurality of support blocks are movably disposed in different guide grooves.

[0010] In some embodiments, the repair device also includes a plurality of mounting seats, and the plurality of mounting seats are movably disposed in the different guide grooves, and each of the mounting seats is provided with the support block, and the support block is connected to the mounting seat via a linear drive mechanism, and the linear drive mechanism is configured to adjust the height of the support block.

[0011] In some embodiments, the first measuring assembly includes at least three micrometers, the at least three micrometers are connected to the workbench surface, and the at least three micrometers are arranged in a straight line to form a table frame.

[0012] In some embodiments, the first measuring component also includes a first telescopic column and a first bracket, the first telescopic column is arranged on the table top of the workbench, and the first bracket is connected between the top end of the first telescopic column and the table frame; the first bracket includes at least two first connecting rods connected end to end, and at least two adjacent first connecting rods can rotate relative to each other.

[0013] In some instances, the second measuring assembly includes a second telescopic column, a second bracket and a height measurer, the second telescopic column is arranged on the table top of the workbench, and the second bracket is connected between the top of the second telescopic column and the height measurer; the second bracket includes at least two second connecting rods connected end to end, and at least two adjacent second connecting rods can rotate relative to each other.

[0014] The repair device provided in some embodiments of the present specification can support the grinding disc on the table top of the workbench at the same height through multiple support blocks. At this time, the distances from the contact surfaces of the multiple support blocks with the bottom surface of the grinding disc to the table top of the workbench are equal, and the plane where the contact surfaces of the multiple support blocks with the bottom surface of the grinding disc are located (this plane is also the plane where the bottom surface of the grinding disc is located) is parallel to the table top of the workbench. In this way, during the repair of the grinding disc, it is only necessary to control the abrasive tool to move in a direction parallel to the table top of the workbench, so that the repaired grinding surface can be parallel to the table top of the workbench, and then parallel to the bottom surface of the grinding disc, thereby ensuring that the surface shape of the grinding surface does not change compared to before repair, thereby improving the repair accuracy and efficiency of the grinding surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] This specification will be further described in the form of exemplary embodiments, which will be described in detail by the accompanying drawings. These embodiments are not restrictive, and in these embodiments, the same number represents the same structure, wherein:

[0016] Figure 1 is a schematic diagram of the structure of repairing a grinding disc according to the grinding tool shown in some embodiments of this specification;

[0017] Figure 2 is a top view of a repair device according to some embodiments of the present specification;

[0018] Figure 3 It is a simplified structural schematic diagram of a repair device according to some embodiments of this specification;

[0019] Figure 4 is a schematic diagram of the structure of a meter stand composed of three micrometers according to some embodiments of this specification;

[0020] Figure 5 It is a schematic diagram of the structure when the stop assembly shown in some embodiments of this specification is in a locked state.

[0021] Figure numerals: repair device 100; workbench 11; guide groove 111; first through groove 1111; second through groove 1112; support block 12; first measuring assembly 13; micrometer 131; meter stand 132; first telescopic column 133; first bracket 134; first connecting rod 135-1, 135-2; grinding tool 14; second measuring assembly 15; second telescopic column 151; second bracket 152; second connecting rod 153-1, 153-2; height meter 154; blocking block 16; stop assembly 17; spring 171; first spring 1711; second spring 1712; pressure plate 172; toggle portion 173; mounting seat 18; grinding disc 200. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of the present specification. For ordinary technicians in this field, the present specification can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0023] As shown in this specification and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural, unless the context clearly indicates an exception. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The term "based on" means "at least partially based on". The term "some embodiments" means "at least one embodiment"; the term "other embodiments" means "at least one other embodiment", and the relevant definitions of other terms will be given in the description below.

[0024] Since the position of the product in this manual can be changed at will, the directional words such as "up", "down", "left", "right", "front" and "back" mentioned in this manual only indicate relative position relationships and are not used to limit absolute position relationships.

[0025] In some solutions, when the grinding surface of the grinding disc changes during processing and use, the grinding surface can be repaired by a repairing disc. However, the efficiency of repairing the grinding surface by using a repairing disc is low, and the surface shape of the grinding surface cannot be repaired to an ideal state. In addition, the bottom surface and the grinding surface of the grinding disc are usually relatively parallel. Before repairing the grinding surface, the grinding disc needs to be clamped and fixed. If the clamping is not accurate enough, the repaired grinding surface may form a large angle with the bottom surface of the grinding disc, which will reduce the grinding accuracy of the grinding disc when grinding other objects (such as crystals) to a certain extent.

[0026] In order to solve the above problems, some embodiments of the present specification provide a repair device, which at least includes a workbench, a support block, a first measuring component and a grinding tool. By arranging multiple support blocks to support the grinding disc at the same height, the grinding disc can be parallel to the table surface of the workbench, so that the grinding tool can be used to accurately repair the grinding surface. In addition, the first measuring component can be used to detect the flatness of the repaired grinding surface, which can effectively improve the repair accuracy and efficiency.

[0027] Figure 1 is a schematic diagram of the structure of repairing a grinding disc according to the grinding tool shown in some embodiments of this specification; Figure 2 is a top view of a repair device according to some embodiments of the present specification; Figure 3 is a simplified structural diagram of a repair device according to some embodiments of this specification. Figure 1-Figure 3 As shown, the repair device 100 may include a workbench 11, a plurality of support blocks 12, a first measuring assembly 13 and a grinding tool 14. The workbench 11 may be used to carry other components of the repair device 100, such as the support blocks 12, the first measuring assembly 13, the grinding tool 14, etc. The plurality of support blocks 12 may be arranged on the table surface of the workbench 11, and the plurality of support blocks 12 may be configured to support the grinding disc 200 at the same height. The first measuring assembly 13 may be configured to measure the flatness of the grinding disc 200. The grinding tool 14 may repair the surface of the grinding disc 200.

[0028] Among them, the fact that multiple support blocks 12 can support the grinding disc 200 at the same height means that the multiple support blocks 12 support different positions of the bottom surface of the grinding disc 200 respectively, and the distance between the contact surface between each support block 12 and the bottom surface of the grinding disc 200 and the table surface of the workbench 11 is equal. The surface of the grinding disc 200 to be repaired is the grinding surface of the grinding disc 200, and the grinding surface is the surface of the grinding disc 200 used to grind other objects (such as crystals). The flatness of the grinding disc 200 refers to the deviation of the grinding surface from the standard plane. For example, when the standard plane is used as the reference plane and the standard plane overlaps with the grinding surface, the distance between each point on the grinding surface and the standard plane is the flatness of the point. The greater the flatness of the grinding surface, the greater the amplitude of the concave holes or protrusions on the grinding surface, and the lower the surface accuracy of the grinding surface, which will lead to a decrease in the surface accuracy of the object being ground. Conversely, the smaller the flatness of the grinding surface, the smaller the amplitude of the concave holes or protrusions on the grinding surface, and the higher the surface accuracy of the grinding surface, and the higher the surface accuracy of the object being ground. Therefore, after the grinding surface is repaired by the grinding tool 14, it is necessary to measure the flatness of the grinding surface by the first measuring component 13 to ensure that the grinding surface meets the accuracy requirements. In some embodiments, the grinding tool 14 used to repair the grinding surface may include a grinding wheel, a sand belt, an oil stone, etc. In some examples, the grinding tool 14 can be set on the table top of the workbench 11, or it can be set in other places, for example, supported above the table top of the workbench 11 by a device such as a robotic arm.

[0029] In this embodiment, since the grinding disc 200 is supported at the same height on the surface of the workbench 11 by multiple support blocks 12, the distances from the contact surfaces of the multiple support blocks 12 with the bottom surface of the grinding disc 200 to the surface of the workbench 11 are equal. Therefore, the plane where the contact surfaces of the multiple support blocks 12 with the bottom surface of the grinding disc 200 are located (this plane is also the plane where the bottom surface of the grinding disc 200 is located) is parallel to the surface of the workbench 11. In this way, during the repair of the grinding disc 200, it is only necessary to control the grinding tool 14 to move in a direction parallel to the surface of the workbench 11, so that the repaired grinding surface can be parallel to the surface of the workbench 11, and then parallel to the bottom surface of the grinding disc 200, so as to ensure that the surface shape of the grinding surface does not change compared to before repair, thereby improving the repair accuracy and repair efficiency of the grinding surface.

[0030] In some embodiments, the first measuring assembly 13 may include at least three micrometers 131, at least three micrometers 131 are connected to the table surface of the workbench 11, and at least three micrometers 131 are arranged in a straight line to form a table frame 132. In some application scenarios, when the table frame 132 includes at least three micrometers 131 arranged in a straight line, the micrometer 131 in the middle can be fixed to the center of the grinding disc 200 (for example, when the grinding disc 200 is a disc, it is fixed to the center of the grinding disc 200), and then the table frame 132 is rotated and the micrometer 131 in the middle is kept fixed to observe whether the results of the other two micrometers 131 change. If there is a change, it means that multiple points on the surface of the grinding disc 200 are not located in the same plane. If there is no change, it means that each point on the surface of the grinding disc 200 is located in the same plane.

[0031] It should be noted that the at least three micrometers 131 do not have to be arranged in a straight line to form the table frame 132, as long as the arrangement of the at least three micrometers 131 can make the three micrometers 131 located in the same plane, and can measure the flatness of different positions of the bottom surface of the grinding disc 200. For example, the number of micrometers 131 is six, and the six micrometers 131 can be arranged in a ring, and the table frame 132 can measure the flatness of six points at the same time. For another example, the number of micrometers 131 is three, and the three micrometers 131 are arranged in a triangle.

[0032] Figure 4 is a schematic diagram of the structure of a meter stand composed of three micrometers according to some embodiments of this specification. Figure 2-Figure 4 As shown, the first measuring assembly 13 may further include a first telescopic column 133 and a first bracket 134, wherein the first bracket 134 is connected between the top end of the first telescopic column 133 and the table frame 132. The first bracket 134 may include at least two first connecting rods 135 connected end to end, and at least two adjacent first connecting rods 135 may rotate relative to each other. Figure 2-Figure 3 In the illustrated embodiment, the first telescopic column 133 can be arranged on the surface of the workbench 11, and the first telescopic column 133 can be telescoped in a direction perpendicular to the surface of the workbench 11, so as to adjust the height of the meter stand 132. There are two first connecting rods 135, including a first connecting rod 135-1 and a first connecting rod 135-2, the head end of the first connecting rod 135-1 is connected to the top end of the first telescopic column 133, the tail end of the first connecting rod 135-1 is rotatably connected to the head end of the first connecting rod 135-2, and the tail end of the first connecting rod 135-2 is connected to the meter stand 132, and the posture of the meter stand 132 (the angle between the plane where at least three dial gauges 131 are located and the surface of the workbench 11) can be adjusted by controlling the first connecting rod 135-2 to rotate relative to the first connecting rod 135-1.

[0033] In some embodiments, the first bracket 134 can rotate relative to the first telescopic column 133, for example, Figure 3 In the illustrated embodiment, the head end of the first connecting rod 135 - 1 is rotatably connected to the top end of the first telescopic column 133 , so as to more flexibly adjust the position and posture of the watch frame 132 .

[0034] In some embodiments, the first bracket 134 is rotatably connected to the meter frame 132 composed of at least three micrometers 131, so as to more flexibly adjust the position of the meter frame 132. Figure 3 In the illustrated embodiment, the tail end of the first connecting rod 135-2 is rotatably connected to the meter frame 132. When the first bracket 134 rotates relative to the first telescopic column 133 and / or the first connecting rod 135-2 rotates relative to the first connecting rod 135-1, the meter frame 132 can be controlled to rotate relative to the first bracket 134 so that the plane where the multiple micrometers 131 are located is always perpendicular to the surface of the workbench 11.

[0035] It should be noted that Figure 2 and Figure 3 The embodiment of the first measuring component shown is for illustration purposes only, and is used to illustrate an exemplary connection method between the table frame 132 and the table top of the workbench 11. In actual application, the table frame 132 can be connected to the table top of the workbench 11 in other ways. For example, the first measuring component 13 may include a first mechanical arm, one end of the first mechanical arm is connected to the table top of the workbench 11, and the other end is connected to the table frame 132. The operator can adjust the position and posture of the table frame 132 by controlling the first mechanical arm.

[0036] In some embodiments, the height of the support block 12 may be fixed, that is, the height of the support block 12 is not adjustable. For example, the plurality of support blocks 12 may all be cuboids, cylinders, or prisms, and the height of each support block 12 when placed on the workbench 11 is fixed.

[0037] In some embodiments, the height of the support block 12 is adjustable, and the operator can adjust the height of the support block 12 in combination with factors such as the position of the abrasive tool 14 and the size and shape of the grinding disc 200, thereby improving the repair efficiency. For example, when the height of the abrasive tool 14 remains fixed (the abrasive tool 14 can move in a direction parallel to the table surface of the workbench 11), when the thickness of the grinding disc 200 changes, it is necessary to adjust the height of the support block 12 to adapt to the height of the abrasive tool 14, thereby achieving repair. For another example, when the grinding disc 200 is large in size and heavy in weight, the height of the support block 12 can be lowered to lower the center of gravity of the grinding disc 200, prevent the grinding disc 200 from tilting during repair, and improve the stability of the grinding disc 200 during repair.

[0038] In some embodiments, the support block 12 may be a combination of multiple sub-support blocks 12 stacked in the same direction. For example, each sub-support block 12 is a cube of the same size. When the height of the support block 12 needs to be adjusted, the number of stacked sub-support blocks 12 may be reduced or increased. In some embodiments, two adjacent sub-support blocks 12 constituting the support block 12 may be connected by snap connection, magnetic connection, bonding, or the like.

[0039] In some embodiments, the repair device 100 may further include a second measuring component 15, which may be configured to measure the distance between the grinding disc 200 and the table surface of the workbench 11. By providing the second measuring component 15, on the one hand, the distance between multiple positions of the bottom surface of the grinding disc 200 and the table surface of the workbench 11 can be measured, further ensuring that the bottom surface of the grinding disc 200 remains parallel to the table surface of the workbench 11; on the other hand, after determining the distance between the grinding disc 200 and the table surface of the workbench 11, it is convenient for the staff to adjust the positions of the components such as the abrasive tool 14 and the first measuring component 13, further improving the repair efficiency of the grinding disc 200.

[0040] In some embodiments, Figure 3 As shown, the second measuring assembly 15 may include a second telescopic column 151, a second bracket 152 and a height measuring device 154. The second telescopic column 151 is disposed on the table top of the workbench 11, and the second bracket 152 is connected between the top of the second telescopic column 151 and the height measuring device 154. The second bracket 152 includes at least two second connecting rods 153 connected end to end. Figure 3 In the illustrated embodiment, the second telescopic column 151 can be telescoped in a direction perpendicular to the table surface of the workbench 11 so as to adjust the height of the height measuring device 154. There are two second connecting rods 153, namely, a second connecting rod 153-1 and a second connecting rod 153-2. The head end of the second connecting rod 153-1 is connected to the top end of the second telescopic column 151, the tail end of the second connecting rod 153-1 is rotatably connected to the head end of the second connecting rod 153-2, and the tail end of the second connecting rod 153-2 is connected to the height measuring device 154. The posture of the height measuring device 154 can be adjusted by controlling the second connecting rod 153-2 to rotate relative to the second connecting rod 153-1. In some embodiments, the height measuring device 154 may include a rangefinder, an altimeter, etc.

[0041] In some embodiments, the support block 12 is movably disposed on the table of the workbench 11, and the operator can adjust the position of the support block 12 based on the shape and size of the grinding disc 200, so as to support different grinding discs 200 and improve the application range of the repair device 100. As an example only, when the size of the grinding disc 200 is large, in order to improve the support stability, the support block 12 can be moved to a position corresponding to the edge of the grinding disc 200, and then the grinding disc 200 is supported.

[0042] In some embodiments, the support block 12 can slide directly on the surface of the workbench 11. For example, the support block 12 can be at least partially made of magnetic material or a magnetic part can be provided on the support block 12. The workbench 11 can be at least partially made of a magnet or a magnet can be provided on the surface of the workbench 11. The support block 12 can be adsorbed on the surface of the workbench 11 by magnetic attraction. By reasonably setting the magnetic attraction between the support block 12 and the workbench 11, the operator can push the support block 12 to move relative to the workbench 11 without expending much effort, thereby improving the convenience of operation.

[0043] In some embodiments, a plurality of support guide grooves (not shown in the figure) are provided on the surface of the workbench 11, and a plurality of support blocks 12 are movably disposed in different support guide grooves. In this embodiment, the support guide grooves can limit the support blocks 12, constrain the moving path of the support blocks 12, and ensure that the support blocks 12 move along the planned path, thereby improving the repair efficiency and repair accuracy.

[0044] In some embodiments, the extension lines of multiple support guide grooves can converge at one point, and when multiple grinding discs 200 are repaired, the moving efficiency and precision of the support block 12 can be improved, thereby improving the repair efficiency. As an example only, when the first grinding disc 200 is repaired, the six support blocks 12 are arranged in an annular shape at equal intervals (that is, the convergence point of the extension lines of the multiple support guide grooves and the center point of the grinding disc 200 are located on the same axis, and the axis is perpendicular to the table of the workbench 11). After the first grinding disc 200 is repaired, the second grinding disc 200 is repaired. If the diameter of the second grinding disc 200 is larger than the diameter of the first grinding disc 200, in order to avoid the grinding disc 200 from tilting, the operator can control the six support blocks 12 to move the same distance away from the convergence point of the support guide groove, effectively simplifying the operation steps and improving the repair efficiency. Similarly, if the diameter of the second grinding disc 200 is smaller than the diameter of the first grinding disc 200, in order to adapt to the grinding disc 200 of smaller size, the operator can control the six support blocks 12 to move the same distance toward the convergence point of the support guide groove.

[0045] In some application scenarios, when the grinding tool 14 repairs the grinding surface, the grinding disc 200 may shake in the height direction (i.e., the direction perpendicular to the surface of the workbench 11) or the horizontal direction (i.e., the direction parallel to the surface of the workbench 11), thereby affecting the repair accuracy and efficiency. For this reason, the grinding disc 200 needs to be fixed.

[0046] In some embodiments, in combination Figure 1-Figure 2 As shown, the repair device 100 may also include a plurality of blocking blocks 16, which are respectively in contact with the side circumferential wall of the grinding disc 200, so as to reduce the shaking of the grinding disc 200 during the repair process. In some embodiments, in order to improve the restriction on the shaking of the grinding disc 200, the number of blocking blocks 16 may be at least three. As an example only, the number of blocking blocks 16 is four, namely, the first blocking block 16, the second blocking block 16, the third blocking block 16 and the fourth blocking block 16. The grinding disc 200 is in the shape of a disc. The first blocking block 16, the second blocking block 16, the third blocking block 16 and the fourth blocking block 16 are arranged around the side circumferential wall of the grinding disc 200 at equal intervals and in contact with the side circumferential wall of the grinding disc 200. In this embodiment, since the four blocking blocks 16 are arranged at equal intervals around the side wall of the grinding disk 200, that is, the line between the first blocking block 16 and the third blocking block 16 passes through the center of the grinding disk 200, and the line between the second blocking block 16 and the fourth blocking block 16 also passes through the center of the grinding disk 200, and is perpendicular to the line between the first blocking block 16 and the third blocking block 16, the four blocking blocks 16 limit the movement of the grinding disk 200 in four directions, which can greatly reduce the shaking of the grinding disk 200 and improve the repair accuracy and efficiency.

[0047] It should be noted that Figure 1-Figure 2 The embodiment shown is for illustrative purposes only, and is intended to illustrate an exemplary setting of the blocking block 16, and is not intended to limit the setting of the blocking block 16. For example, the number of the blocking blocks 16 can be five, six, or even more. For another example, when the grinding disc 200 is an irregular shape, the setting position of the blocking block 16 can be adjusted according to actual conditions, as long as the grinding disc 200 can be limited in the horizontal direction.

[0048] In some embodiments, the heights of the plurality of blocking blocks 16 may be fixed, that is, the heights of the blocking blocks 16 are not adjustable. For example, the blocking blocks 16 may be rectangular, cylindrical, or prism-shaped. In some embodiments, the heights of the plurality of blocking blocks 16 may be the same or different, and this specification does not impose any limitation thereto, as long as the blocking blocks 16 can abut against the side circumferential wall of the grinding disc 200.

[0049] In some embodiments, the height of the blocking block 16 is adjustable. When repairing multiple grinding discs 200, the operator can adjust the height of the blocking block 16 based on factors such as the thickness of the grinding disc 200 and the height of the grinding disc 200, so that the blocking block 16 can be more closely abutted against the side wall of each grinding disc 200, thereby improving the repair efficiency and repair accuracy. For example, the height of the grinding disc 200 to be repaired is higher than that of the grinding disc 200 to be repaired previously (i.e., the distance from the table of the workbench 11), and the height of the blocking block 16 can be adjusted to adapt to the height of the grinding disc 200 to be repaired currently. For another example, when the thickness of the grinding disc 200 to be repaired currently is greater than that of the grinding disc 200 to be repaired previously, the height of the blocking block 16 can be adjusted to adapt to the thickness of the grinding disc 200 to be repaired currently. In some embodiments, the specific adjustment method of the height of the blocking block 16 can be the same or similar to the height adjustment method of the support block 12, which will not be repeated here.

[0050] It should be noted that the "support block 12" in this specification is only used to illustrate an exemplary structure for supporting the grinding disc 200, and should not be regarded as limiting the type of structure for supporting the grinding disc 200. For example, the support block 12 can be equivalently replaced by a support column (such as a cylinder, a prism, etc.), a support rod, etc. Similarly, the "blocking block 16" is also only used to illustrate an exemplary structure for abutting against the grinding disc 200 to reduce its shaking, and should not be regarded as limiting the type of structure for supporting the grinding disc 200. For example, the support block 12 can be equivalently replaced by a blocking column (such as a cylinder, a prism, etc.), a blocking rod, a blocking sheet, etc.

[0051] In some embodiments, a plurality of blocking blocks 16 are movably disposed on the table surface of the workbench 11, and the operator can adjust the position of the blocking blocks 16 based on the shape and size of the grinding disc 200, thereby achieving stability for different grinding discs 200 and improving the scope of application of the repair device 100. As an example only, when the grinding disc 200 is in the shape of a triangle, three blocking blocks 16 can be moved to the three sides of the grinding disc 200 for abutment. For another example, when the grinding disc 200 is in the shape of a disc, four blocking blocks 16 can be arranged around the side circumference of the grinding disc 200 at equal intervals.

[0052] In some embodiments, the blocking block 16 can slide directly on the surface of the workbench 11. For example, the blocking block 16 can be made of magnetic material or a magnetic part can be provided on the blocking block 16 (such as the bottom of the blocking block 16). The workbench 11 can be at least partially made of a magnet or a magnet can be provided on the surface of the workbench 11. The blocking block 16 can be adsorbed on the surface of the workbench 11 by magnetic attraction, and by reasonably setting the magnetic force between the blocking block 16 and the workbench 11, the operator can push the blocking block 16 to move relative to the workbench 11 without expending much effort.

[0053] In some embodiments, a plurality of guide grooves 111 are provided on the surface of the workbench 11, and a plurality of blocking blocks 16 are movably disposed in different guide grooves 111. In this embodiment, since the blocking blocks 16 are disposed in the guide grooves 111, the guide grooves 111 can limit the blocking blocks 16, thereby constraining the moving path of the blocking blocks 16, ensuring that the blocking blocks 16 move along the planned path, thereby improving the repair efficiency and repair accuracy.

[0054] In some embodiments, Figure 1-Figure 2 As shown, the extension lines of the plurality of guide grooves 111 may converge at one point, so that when repairing the plurality of grinding discs 200 , the moving efficiency and accuracy of the blocking block 16 may be improved, thereby improving the repair efficiency. For example, taking the grinding disk 200 as a disc, when repairing the first grinding disk 200, four blocking blocks 16 are arranged around the grinding disk 200 at equal intervals (that is, the convergence point of the extension lines of the multiple guide grooves 111 and the center point of the grinding disk 200 are located on the same axis, and the axis is perpendicular to the table surface of the workbench 11), and abut against the side wall of the grinding disk 200. After repairing the first grinding disk 200, the second grinding disk 200 is repaired. If the diameter of the second grinding disk 200 is larger than the diameter of the first grinding disk 200, then when the fixed position of the grinding disk 200 remains unchanged (that is, when the grinding disk 200 is supported by the support block 12, the center of the grinding disk 200 is always located on the same axis perpendicular to the table surface of the workbench 11), the operator only needs to control the four blocking blocks 16 to move the same distance away from the convergence point of the guide groove 111 so as to abut against the side wall of the second grinding disk 200, which can effectively simplify the operator's operating steps and improve the repair efficiency. Similarly, if the diameter of the second grinding disc 200 is smaller than that of the first grinding disc 200 , the operator only needs to control the four blocking blocks 16 to move the same distance toward the convergence point of the guide groove 111 so as to abut against the side wall of the second grinding disc 200 .

[0055] In some embodiments, Figure 2As shown, the support block 12 and the blocking block 16 are both movably arranged in the guide groove 111. On the one hand, the guide groove 111 can be used to constrain the moving paths of the support block 12 and the blocking block 16 to improve the repair efficiency and repair accuracy. On the other hand, the number of grooves opened on the table surface of the workbench 11 can be reduced (for example, there is no need to additionally set the support guide grooves described in other embodiments of this specification), thereby reducing the manufacturing cost. As an example only, the number of guide grooves 111, support blocks 12 and blocking blocks 16 are all four, and the extension lines of the four guide grooves 111 converge at the same point. A movable support block 12 and blocking block 16 are provided in each guide groove 111, and the support block 12 is located on the side of the blocking block 16 close to the convergence point of the guide groove 111, so that the support block 12 can support the bottom surface of the grinding disc 200, and the blocking block 16 can abut against the side wall of the grinding disc 200 for limiting.

[0056] In some embodiments, the repair device 100 may further include a plurality of mounting seats 18, which are movably arranged in different guide grooves 111, and each mounting seat 18 is provided with a support block 12, which is connected to the mounting seat 18 by a linear drive mechanism, and the linear drive mechanism is configured to adjust the height of the support block 12. In some embodiments, the linear drive mechanism may include a screw nut mechanism, a worm gear mechanism, a guide rail slider mechanism, a telescopic rod mechanism, etc. As an example only, taking a worm gear mechanism (not shown in the figure) as an example, the worm gear mechanism includes a worm and a turbine matched with the worm, the turbine is rotatably connected to the mounting seat, the setting direction of the worm is perpendicular to the table surface of the workbench 11, and the end of the worm away from the workbench 11 is connected to the support block 12, and the operator can control the worm to move in a direction perpendicular to the workbench 11 by rotating the turbine, thereby adjusting the height of the support block 12. In this embodiment, the worm gear mechanism has high precision, which can improve the accuracy when adjusting the height of the support block 12, thereby accurately controlling the distance between the grinding tool 14 and the grinding surface of the grinding disc 200, and improving the repair accuracy. The guide groove 111 in this embodiment can be the same or similar to the support guide groove 111 in other embodiments of this specification.

[0057] In some embodiments, the blocking block 16 can be movably disposed in the guide groove 111 in the same or similar manner as the supporting block 12. For example, two mounting seats 18 are disposed in each guide groove 111, one mounting seat 18 (or referred to as a supporting mounting seat) is used to mount the supporting block 12, and the other mounting seat 18 (or referred to as a blocking mounting seat) is used to mount the blocking block 16. Both the supporting block 12 and the blocking block 16 are connected to the corresponding mounting seats 18 through a linear drive mechanism, and the specific arrangement method is not repeated here.

[0058] In some embodiments, the mounting seat 18 may directly contact the side walls and the bottom wall of the guide groove 111 , and the operator may control the movement of the mounting seat 18 along the guide groove 111 by applying a thrust to overcome the frictional resistance.

[0059] Figure 5 is a schematic diagram of the structure of the stop assembly in a locked state according to some embodiments of this specification. Figure 5 As shown, the guide groove 111 may include a first through groove 1111 and a second through groove 1112 connected to the first through groove 1111, the first through groove 1111 is connected to the opening of the guide groove 111, and in a cross section perpendicular to the length direction of the guide groove 111, the cross-sectional size of the first through groove 1111 is larger than the cross-sectional size of the second through groove 1112, and a roller (not shown in the figure) is provided at the bottom of the mounting seat 18, the mounting seat 18 is located in the first through groove 1111, and the roller is located in the second through groove 1112. By providing the roller at the bottom of the mounting seat 18, the friction form between the mounting seat 18 and the guide groove 111 can be changed from sliding friction to rolling friction, thereby reducing the resistance of the mounting seat 18 to move relative to the guide groove 111, and making it more convenient and labor-saving for the operator to move the support block 12.

[0060] In some embodiments, Figure 5 As shown, a stopper assembly 17 is provided on at least one side of each blocking block 16 along the length direction of the guide groove 111 where the blocking block 16 is located. The stopper assembly 17 may include a spring 171, a pressing plate 172 and a toggle portion 173. The two ends of the spring are respectively connected to the blocking block 16 and the pressing plate 172. The pressing plate 172 is pressed against the bottom of the guide groove 111 under the elastic force of the spring; the toggle portion 173 can drive the pressing plate 172 to separate from the bottom of the guide groove 111 and compress the spring 171 along the axial direction of the spring. When the pressing plate 172 is pressed against the bottom of the guide groove 111, the relative force generated between the pressing plate 172 and the bottom of the guide groove 111 is large, which can limit the movement of the blocking block 16. At this time, the stopper assembly 17 can be regarded as being in a locked state. When the pressing plate 172 is separated from the bottom of the guide groove 111 and the spring 171 is compressed, the operator can push the blocking block 16 to move by applying a small force. At this time, the stopper assembly 17 can be regarded as being in an unlocked state.

[0061] Just as an example, Figure 5As shown, the spring 171 may include a first spring 1711 and a second spring 1712, the toggle portion 172 may include a toggle plate, one end of the first spring 1711 and one end of the second spring 1712 are respectively connected to two surfaces opposite to the toggle plate, the other end of the first spring 1711 is connected to the blocking block 16, the other end of the second spring 1712 is connected to the pressing plate 172, and a friction resistance layer is provided on one side of the pressing plate 172 away from the second spring 1712. When the toggle plate moves toward the bottom of the guide groove 111 so that the pressing plate 172 abuts against the bottom of the guide groove 111, the friction resistance between the friction resistance layer and the bottom of the guide groove 111 is relatively large, and at this time, a relatively large force needs to be applied to the blocking block 16 to push the blocking block 16 to move, so the blocking block 16 can be effectively fixed. When the toggle plate moves away from the bottom of the guide groove 111 so that the pressing plate 172 is separated from the bottom of the guide groove 111, the friction resistance between the friction resistance layer and the bottom of the guide groove 111 disappears, and only a small force is required to push the blocking block 16 to move, which makes it easier for the operator to control the movement of the blocking block 16. In some embodiments, the friction resistance layer may include rubber, sponge, silicone, etc.

[0062] It should be noted that the friction resistance layer provided on the side of the pressure plate 172 away from the second spring 1712 is not necessary, and it can be replaced or improved according to actual conditions. For example, the friction resistance layer can be replaced by a magnetic layer, and the magnetic layer can be made of a magnetic material, and a magnetic strip is provided at the bottom of the guide groove 111. When the toggle plate moves toward the bottom of the guide groove 111 so that the pressure plate 172 abuts against the bottom of the guide groove 111, the magnetic layer of the pressure plate 172 and the magnetic strip at the bottom of the guide groove 111 are magnetically adsorbed to generate a large magnetic attraction force. At this time, a large force needs to be applied to the blocking block 16 to push the blocking block 16 to move, so the blocking block 16 can be effectively fixed. When the toggle plate moves away from the bottom of the guide groove 111 so that the pressure plate 172 is separated from the bottom of the guide groove 111, the magnetic attraction between the magnetic layer and the magnetic strip at the bottom of the guide groove 111 disappears or can be almost ignored. At this time, only a small force needs to be applied to push the blocking block 16 to move, which is more convenient for the operator to control the movement of the blocking block 16.

[0063] In some embodiments, the support block 12 can be fixed relative to the guide groove 111 in the same or similar manner as the blocking block 16, which will not be described in detail here.

[0064] The use process of the repair device of some embodiments of the present specification is as follows: adjust the height of multiple support blocks to an appropriate height, and obtain the height of the support blocks through the second measuring component; adjust the stop component to the unlocked state, move the multiple support blocks to the corresponding positions on the table surface of the workbench, and when the multiple support blocks move to the corresponding positions, adjust the stop component to the locked state; place the grinding disc to be repaired on the support block, and move the multiple blocking members to abut against the side wall of the grinding disc; when the grinding disc is fixed, control the abrasive tool to repair the grinding surface of the grinding disc; determine the flatness of the repaired grinding surface through the first measuring component. In this process, it is necessary to first place the table frame Calibration is performed on a marble plane (which can be considered a standard plane), and the pointer scales of all micrometers are returned to zero. Then the meter stand is placed on the repaired grinding surface. The result measured by each micrometer is the error between the contact point (or contact surface) between the micrometer and the grinding surface and the ideal plane. When the flatness meets the conditions (for example, the results measured by all micrometers are less than the preset value (such as 5 microns, 10 microns, 15 microns, etc.)), it is determined that the grinding surface has been repaired to be qualified. At this time, the blocking member can be moved to separate from the grinding disc, and then the grinding disc can be removed. On the contrary, when it is determined that the grinding surface has been repaired to be unqualified, the abrasive tool continues to be controlled to repair the grinding surface of the grinding disc until the flatness meets the conditions.

[0065] The repair device provided in some embodiments of the present specification may bring beneficial effects including: (1) Since the grinding disc is supported at the same height on the table top of the workbench by multiple support blocks, the distances from the contact surfaces of the multiple support blocks with the bottom surface of the grinding disc to the table top of the workbench are equal, and the plane where the contact surfaces of the multiple support blocks with the bottom surface of the grinding disc are located (the plane is also the plane where the bottom surface of the grinding disc is located) is parallel to the table top of the workbench. In this way, during the repair of the grinding disc, it is only necessary to control the abrasive tool to move in a direction parallel to the table top of the workbench, so that the repaired grinding surface can be parallel to the table top of the workbench and then to the bottom surface of the grinding disc, thereby ensuring that the surface shape of the grinding surface does not change compared to before repair, thereby improving the repair accuracy and repair efficiency of the grinding surface; (2) By setting up a second measuring component, on the one hand, it is possible to further ensure that the grinding surface is in a state of being repaired by measuring the distance between each part of the bottom surface of the grinding disc and the table top of the workbench. The bottom surface of the grinding disc is parallel to the table surface of the workbench. On the other hand, after determining the distance between the grinding disc and the table surface of the workbench, it is convenient for the staff to adjust the position of the components such as the grinding tool and the first measuring component, thereby further improving the repair efficiency of the grinding disc; (3) The support block is movably arranged on the table surface of the workbench. The operator can adjust the position of the support block based on the shape and size of the grinding disc, thereby achieving stability for different grinding discs and improving the applicable scope of the repair device; (4) By setting a plurality of blocking blocks to abut against the side wall of the grinding disc, the shaking of the grinding disc during the repair process is reduced; (5) The support block and the blocking block are arranged in the guide groove, and the support block and the blocking block are limited by the guide groove, thereby constraining the moving path of the support block and the blocking block, ensuring that the support block and the blocking block move along the planned path, thereby improving the repair efficiency and repair accuracy. It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced may be any one or a combination of the above, or any other beneficial effects that may be obtained.

[0066] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this specification. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification.

Claims

1. A repair device for a grinding disc, characterized in that: include: Workbench; A plurality of support blocks are arranged on the table surface of the workbench, and the plurality of support blocks are configured to support the grinding disc at the same height; A first measuring assembly configured to measure the flatness of the grinding disc; Abrasive tool, repairing the surface of the grinding disc.

2. The repair device according to claim 1, characterized in that: The heights of the plurality of support blocks are adjustable; the repair device further comprises a second measuring component, which is configured to measure the distance between the grinding disc and the table surface of the workbench.

3. The repair device according to claim 1, characterized in that: It also includes a plurality of blocking blocks, which are respectively in contact with the side peripheral wall of the grinding disc.

4. The repair device according to claim 3, characterized in that: A plurality of guide grooves are provided on the table surface of the workbench, and the extension lines of the plurality of guide grooves converge at one point. The plurality of blocking blocks are movably disposed in different guide grooves.

5. The repair device according to claim 4, characterized in that: A stop assembly is provided on at least one side of each blocking block along the length direction of the guide groove in which the blocking block is located, and the stop assembly includes a spring, a pressure plate and a toggle portion, and the two ends of the spring are respectively connected to the blocking block and the pressure plate; the pressure plate is pressed against the bottom of the guide groove under the elastic force of the spring; the toggle portion can drive the pressure plate to disengage from the bottom of the guide groove along the axial direction of the spring and compress the spring.

6. The repair device according to claim 4, characterized in that: The plurality of support blocks are movably disposed in different guide grooves respectively.

7. The repair device according to claim 6, characterized in that: The repair device also includes a plurality of mounting seats, which are movably disposed in different guide grooves, each of which is provided with a support block, and the support block is connected to the mounting seat via a linear drive mechanism, and the linear drive mechanism is configured to adjust the height of the support block.

8. The repair device according to claim 1, characterized in that: The first measuring assembly includes at least three micrometers, the at least three micrometers are connected to the workbench surface, and the at least three micrometers are arranged in a straight line to form a table frame.

9. The repair device according to claim 8, characterized in that: The first measuring assembly also includes a first telescopic column and a first bracket. The first telescopic column is arranged on the table top of the workbench, and the first bracket is connected between the top end of the first telescopic column and the table frame. The first bracket includes at least two first connecting rods connected end to end, and at least two adjacent first connecting rods can rotate relative to each other.

10. The repair device according to claim 2, characterized in that: The second measuring assembly includes a second telescopic column, a second bracket and a height measurer. The second telescopic column is arranged on the table top of the workbench. The second bracket is connected between the top of the second telescopic column and the height measurer. The second bracket includes at least two second connecting rods connected end to end, and at least two adjacent second connecting rods can rotate relative to each other.

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