Three-axis grinding and polishing disc assembling structure and equipment comprising same

Abstract

The utility model discloses a three-axis grinding and polishing disc assembly structure and equipment comprising the same. The three-axis grinding and polishing disc assembly structure comprises a first upper polishing disc, a second upper polishing disc and a lower polishing disc. A ceramic piece needing to be ground and polished is placed on the lower polishing disc, and the first upper polishing disc and the second upper polishing disc make contact with the upper surface of the ceramic piece. After the motor is started, the first upper polishing disc, the second upper polishing disc and the lower polishing disc can rotate respectively, and continuous friction is conducted on the ceramic part through the speed difference and different grinding directions of the three. In the polishing disc assembly structure, the two upper polishing discs and the two lower polishing discs eccentrically grind ceramic parts, and differential adjustment of grinding precision can be achieved through three-axis eccentric grinding by adjusting the rotating speed of the two upper polishing discs and the distance between the two upper polishing discs and the lower polishing discs; the connecting strength of the metal disc and the bottom plate is improved by arranging the at least two connecting blocks, and the problem that the metal disc falls off due to aging of glue or the utilization rate of the metal disc is reduced due to loss is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ceramic processing technical field, especially a kind of three-axis grinding and polishing disc assembly structure and the equipment including it. BACKGROUND

[0002] For precision ceramic parts such as ceramic ferrule, ceramic sleeve, ceramic wedge, after green body preparation forming and sintering to obtain ceramic structural parts, local grinding or polishing process is often needed for precision machining of ceramic structural parts with certain hardness and shape to meet precision or special size requirements.

[0003] The existing polishing equipment includes single-sided polishing machine and double-sided polishing machine, and contains polishing disc combined by metal disc and bottom plate support disc, and the combination mode has two kinds: using glue to connect to form intermediate glue layer combination, or punching on metal disc to improve combination strength by bolt to overcome the effect of rotating centrifugal force.

[0004] In actual grinding and polishing process, if the polishing disc formed by glue connection to form intermediate glue layer combination is used, the glue layer will swell after adding grinding liquid, which will affect the precision of polishing, and the glue layer will age after long-term use, which will often cause the whole metal disc to fall off. If the polishing disc is fastened by bolt after punching on the metal disc, the thickness of the metal disc will gradually wear out with use, and when the wear reaches the bottom of the screw hole, the exposed screw hole will damage the consistency of the polishing surface, affect the polishing and grinding precision and metal disc finishing, and cause the metal disc to be scrapped and unable to continue to be used. The thicker or larger the metal disc is, the more the number of fixing holes or the deeper the screw hole is, which is not conducive to improving the utilization rate and grinding efficiency of the metal disc. In addition, for the need of synchronous grinding of different sizes or different types of ceramic parts, the requirements for grinding precision may be inconsistent. The traditional grinding equipment can only adjust the precision after completing part of the grinding work, and then carry out subsequent grinding work with different precision requirements, which undoubtedly reduces the grinding efficiency and cannot meet the demand of large-scale grinding work. SUMMARY

[0005] The utility model aims at solving one of the technical problems existing in prior art. To this end, the utility model provides a three-axis grinding and polishing disc assembly structure, which can stably install metal disc to prevent metal disc from falling off during grinding or polishing process, effectively improve the utilization rate and grinding efficiency of metal disc, synchronously grind different sizes or different types of ceramic precision parts, realize different precision grinding effect, and greatly improve the service life of metal disc.

[0006] The utility model further provides an equipment with the above-mentioned three-axis grinding and polishing disc assembly structure.

[0007] According to the three-axis grinding and polishing disc assembly structure of the first aspect embodiment of the utility model,

[0008] A first polishing upper disc comprises a first connecting block and a first upper disc bottom plate and a first upper metal disc arranged along a rotation axis, the number of the first connecting blocks is at least two and they are arranged in a circumferential array around the rotation axis of the first upper disc bottom plate, the first connecting blocks are arranged between the first upper disc bottom plate and the first upper metal disc and connect the two;

[0009] A second polishing upper disc comprises a second connecting block and a second upper disc bottom plate and a second upper metal disc arranged along a rotation axis, the number of the second connecting blocks is at least two and they are arranged in a circumferential array around the rotation axis of the second upper disc bottom plate, the second connecting blocks are arranged between the second upper disc bottom plate and the second upper metal disc and connect the two;

[0010] A polishing lower disc comprises a third connecting block and a lower disc bottom plate and a lower metal disc arranged along a rotation axis, the number of the third connecting blocks is at least two and they are arranged in a circumferential array around the rotation axis of the lower disc bottom plate, the third connecting blocks are arranged between the lower disc bottom plate and the lower metal disc and connect the two;

[0011] The rotation axes of the first polishing upper disc, the second polishing upper disc and the polishing lower disc are parallel to each other but do not coincide.

[0012] The three-axis polishing disc assembly structure has the following beneficial effects: the two polishing upper discs and the polishing lower disc eccentrically grind the ceramic piece, the three-axis eccentric grinding can adjust the rotational speed of the two polishing upper discs and the distance from the polishing lower disc to realize differential adjustment of grinding precision, and the two or more connecting blocks are arranged to improve the connection strength of the metal disc and the bottom plate, thereby avoiding the problems of falling off due to aging of glue or reduced utilization of the metal disc due to wear.

[0013] According to some embodiments of the present application, the diameters of the first polishing upper disc and the second polishing upper disc are a, and the diameter of the polishing lower disc is b, wherein a:b=(4-5):(10-15).

[0014] According to some embodiments of the present application, the shortest distance between the rotation axis of the first polishing upper disc and the rotation axis of the polishing lower disc is x1, and the shortest distance between the rotation axis of the second polishing upper disc and the rotation axis of the polishing lower disc is x2, wherein the values of x1 and x2 are in the range of 0.5a

[0015] According to some embodiments of the present application, the first upper metal disc has a thickness of h1, and the second upper metal disc has a thickness of h2, wherein h1:h2=1:(1.75-7), the value range of h1 is 5mm-20mm, and the value range of h2 is 20mm-35mm.

[0016] According to some embodiments of the present application, the first upper metal disc and the second upper metal disc each comprise an upper grinding area, a first upper mounting area and a second upper mounting area, the upper grinding area is annular and arranged at the periphery of the first upper mounting area, and the second upper mounting area is annular and arranged at the periphery of the upper grinding area; the first connecting block is mounted in the first upper mounting area and / or the second upper mounting area of the first upper metal disc, and the mounting area of the first connecting block accounts for 0.64%-1.75% of the area of the first upper metal disc; the second connecting block is mounted in the first upper mounting area and / or the second upper mounting area of the second upper metal disc, and the mounting area of the second connecting block accounts for 0.64%-1.75% of the area of the second upper metal disc.

[0017] According to some embodiments of the present application, the lower metal disc comprises a lower grinding area, a first lower mounting area and a second lower mounting area, the lower grinding area is annular and arranged at the periphery of the first lower mounting area, the second lower mounting area is annular and arranged at the periphery of the lower grinding area, and the third connecting block is mounted in the first lower mounting area and / or the second lower mounting area, and the mounting area of the third connecting block accounts for 0.14%-0.35% of the area of the lower metal disc.

[0018] According to some embodiments of the present application, the third connecting block is mounted in the first lower mounting area and the second lower mounting area, wherein the number of the third connecting blocks in the first lower mounting area is odd, and the number of the third connecting blocks in the second lower mounting area is even; or the number of the third connecting blocks in the first lower mounting area is even, and the number of the third connecting blocks in the second lower mounting area is odd; or the number of the third connecting blocks in the first lower mounting area and the second lower mounting area is odd; or the number of the third connecting blocks in the first lower mounting area and the second lower mounting area is even.

[0019] According to some embodiments of the present application, the shapes of the first connecting block, the second connecting block and the third connecting block include but are not limited to a circle, a rectangle, a triangle, an L shape, an X shape, a hexagon and a crescent shape.

[0020] According to some embodiments of the present application, the three-axis grinding and polishing disc assembly structure further comprises a backing plate, the backing plate is arranged between the first polishing upper disc and the polishing lower disc, and between the second polishing upper disc and the polishing lower disc.

[0021] The device according to the second aspect of the utility model, including above-mentioned three -axis grinding polishing disc assembly structure.

[0022] The device according to the utility model embodiment has at least the following beneficial effects: the three-axis grinding polishing disc assembly structure can improve the utilization rate of the metal disc, prolong the service life of the metal disc and improve the grinding efficiency.

[0023] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0024] The utility model will be further explained in combination with the drawings and embodiments, wherein:

[0025] Figure 1 It is the front view of three-axis grinding polishing disc assembly structure of the utility model first aspect embodiment;

[0026] Figure 2 It is the plan view of upper metal disc in three-axis grinding polishing disc assembly structure of the utility model first aspect embodiment;

[0027] Figure 3 It is the distribution schematic view of first connecting block and second connecting block in three-axis grinding polishing disc assembly structure of the utility model first aspect embodiment;

[0028] Figure 4 It is the plan view of lower metal disc in three-axis grinding polishing disc assembly structure of the utility model first aspect embodiment;

[0029] Figure 5 It is the distribution schematic view of third connecting block in three-axis grinding polishing disc assembly structure of the utility model first aspect embodiment.

[0030] Sign: 100-first polishing upper disc, 110-first upper disc bottom plate, 120-first upper metal disc, 200-second polishing upper disc, 210-second upper disc bottom plate, 220-second upper metal disc, 300-polishing lower disc, 310-lower disc bottom plate, 320-lower metal disc, 410-upper grinding area, 420-first upper mounting area, 430-second upper mounting area, 510-lower grinding area, 520-first lower mounting area, 530-second lower mounting area, 610-first connecting block, 620-second connecting block, 630-third connecting block, 700-batten. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described below in detail, examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0032] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0033] In the description of the present application, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If the first, second is described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0034] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.

[0035] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0036] For precise ceramic parts such as ceramic plug cores, ceramic sleeves, ceramic wedge knives, etc., after green body preparation molding and sintering to obtain ceramic structural parts, the ceramic structural parts with certain hardness and shape often need to be locally ground or polished to meet the precision or special size requirements.

[0037] The existing polishing equipment includes single-sided polishing machines and double-sided polishing machines, and contains polishing discs combined by metal discs and base plate supporting discs in two ways: using glue to connect to form an intermediate glue layer combination, or punching holes in the metal disc to increase the combination strength by means of bolts to overcome the effect of rotational centrifugal force.

[0038] In actual grinding and polishing processes, if the polishing disc combined by using glue to form an intermediate glue layer combination is used, the glue layer will swell after adding grinding liquid, affecting the polishing accuracy, and the glue layer will age after long-term use, often causing the metal disc to fall off as a whole. If the polishing disc is combined by punching holes in the metal disc and fastening by bolts, the thickness of the metal disc will gradually wear out with use, and when the wear reaches the bottom of the screw hole closest to the surface, the exposed screw hole will damage the consistency of the polishing surface, affecting the polishing and grinding accuracy and the metal disc trimming, resulting in the metal disc being scrapped and unable to continue to be used. The thicker or larger the metal disc, the more holes or deeper the screw holes required, which is not conducive to improving the utilization rate of the metal disc and the grinding efficiency. In addition, for ceramic parts that need to be ground simultaneously in different sizes or different types, the requirements for grinding accuracy may not be consistent. The traditional grinding equipment can only adjust the accuracy after completing part of the grinding work, and then perform subsequent grinding work with different accuracy requirements, undoubtedly reducing the grinding efficiency and failing to meet the demand for large-scale grinding work.

[0039] To this end, the present application proposes a three-axis grinding and polishing disc assembly structure, two polishing upper discs and a polishing lower disc eccentrically grind ceramic parts, and the three-axis eccentric grinding can realize differentiated adjustment of grinding accuracy by adjusting the rotational speed of the two polishing upper discs and the distance from the polishing lower disc; two or more connecting blocks are provided to improve the connection strength of the metal disc and the base plate, avoiding the problems of falling off due to aging of the glue or reducing the utilization rate of the metal disc due to wear.

[0040] In addition, the present application also proposes an equipment comprising the above-mentioned three-axis grinding and polishing disc assembly structure, which can improve the utilization rate of the metal disc, prolong the service life of the metal disc, and improve the grinding efficiency by using the three-axis grinding and polishing disc assembly structure.

[0041] Reference Figure 1 The three-axis grinding and polishing disc assembly structure in the first aspect embodiment of the present application comprises a first polishing upper disc 100, a second polishing upper disc 200, and a polishing lower disc 300, which are respectively connected with external motors. The ceramic parts to be ground and polished are placed on the polishing lower disc 300, and the upper surfaces of the ceramic parts are contacted by the first polishing upper disc 100 and the second polishing upper disc 200. After the motors are turned on, the first polishing upper disc 100, the second polishing upper disc 200, and the polishing lower disc 300 can rotate respectively, and the ceramic parts are continuously ground by utilizing the speed difference and different grinding directions of the three, thereby completing the double-sided grinding of the ceramic parts and improving the grinding efficiency.

[0042] Specifically, the first polishing upper disc 100 comprises the first connecting blocks 610, the first upper disc bottom plate 110 and the first upper metal disc 120 arranged along the rotation axis l1. The number of the first connecting blocks 610 is at least two and they are distributed in a circular array around the rotation axis of the first upper disc bottom plate 110. The first connecting blocks 610 are arranged between the first upper disc bottom plate 110 and the first upper metal disc 120 and connect the two, so that the first upper metal disc 120 is connected and fixed with the first upper disc bottom plate 110 through each first connecting block 610.

[0043] The second polishing upper disc 200 comprises the second connecting blocks 620, the second upper disc bottom plate 210 and the second upper metal disc 220 arranged along the rotation axis l2. The number of the second connecting blocks 620 is at least two and they are distributed in a circular array around the rotation axis of the second upper disc bottom plate 210. The second connecting blocks 620 are arranged between the second upper disc bottom plate 210 and the second upper metal disc 220 and connect the two, so that the second upper metal disc 220 is connected and fixed with the second upper disc bottom plate 210 through each second connecting block 620.

[0044] The polishing lower disc 300 comprises the third connecting blocks 630, the lower disc bottom plate 310 and the lower metal disc 320 arranged along the rotation axis l3. The number of the third connecting blocks 630 is at least two and they are distributed in a circular array around the rotation axis of the lower disc bottom plate 310. The third connecting blocks 630 are arranged between the lower disc bottom plate 310 and the lower metal disc 320 and connect the two, so that the lower metal disc 320 is connected and fixed with the lower disc bottom plate 310 through each third connecting block 630.

[0045] The rotation axes of the first polishing upper disc 100, the second polishing upper disc 200 and the polishing lower disc 300 are parallel to each other but not coincident, so that the rotation axes of the first polishing upper disc 100, the second polishing upper disc 200 and the polishing lower disc 300 are not coaxial, forming a three-axis eccentric grinding structure.

[0046] Further, the three-axis grinding and polishing disc assembly structure further comprises the backing plate 700 arranged between the first polishing upper disc 100 and the polishing lower disc 300 and / or between the second polishing upper disc 200 and the polishing lower disc 300. Different thicknesses of ceramic pieces can be accommodated by installing backing plates 700 of different heights, so as to complete the grinding work of different types of ceramic pieces.

[0047] Further, the diameters of the first polishing upper disc 100 and the second polishing upper disc 200 are smaller than the diameter of the polishing lower disc 300, so that the first polishing upper disc 100 and the second polishing upper disc 200 have smaller volume and lighter weight, and are less likely to fall. Specifically, the diameters of the first polishing upper disc 100 and the second polishing upper disc 200 are a, and the diameter of the polishing lower disc 300 is b, where a:b=(4-5):(10-15).

[0048] Specifically, in the embodiment, the shortest distance between the rotation axis of the first polishing upper disc 100 and the rotation axis of the polishing lower disc 300 is x1, and the shortest distance between the rotation axis of the second polishing upper disc 200 and the rotation axis of the polishing lower disc 300 is x2, where the value ranges of x1 and x2 are 0.5a

[0049] Further, the thickness of the first upper metal disc 120 is h1, and the thickness of the second upper metal disc 220 is h2, where h1:h2=1:(1.75-7). Specifically, the value range of h1 is 5mm to 20mm, and the value range of h2 is 20mm to 35mm. By setting the first upper metal disc 120 and the second upper metal disc 220 with different thicknesses, the simultaneous polishing of multiple ceramic precision parts under different polishing pressure control can be well achieved, and different sizes and specifications of ceramic parts can be simultaneously polished, thereby improving the polishing efficiency.

[0050] Specifically, referring to Figure 2 , the first upper metal disc 120 and the second upper metal disc 220 each include an upper grinding area 410, a first upper mounting area 420, and a second upper mounting area 430. The upper grinding area 410 is annular and is arranged at the periphery of the first upper mounting area 420, and the second upper mounting area 430 is annular and is arranged at the periphery of the upper grinding area 410. The upper grinding area 410 is used to actually contact the ceramic part and grind its surface, and the first upper mounting area 420 and the second upper mounting area 430 are each used to connect with the first upper disc bottom plate 110 (or the second upper disc bottom plate 210).

[0051] Specifically, the first connecting block 610 is mounted on the first upper mounting area 420 and / or the second upper mounting area 430 of the first upper metal plate 120. The mounting area of ​​the first connecting block 610 accounts for 0.64% to 1.75% of the area of ​​the first upper metal plate 120. The second connecting block 620 is mounted on the first upper mounting area 420 and / or the second upper mounting area 430 of the second upper metal plate 220. The mounting area of ​​the second connecting block 620 accounts for 0.64% to 1.75% of the area of ​​the second upper metal plate 220. The mounting area of ​​the first connecting block 610 and the second connecting block 620 refers to the projected area of ​​the connection between the connecting block and the upper metal plate, projected onto the surface of the upper metal plate.

[0052] Specifically, refer to Figure 4 The lower metal plate 320 includes a lower grinding area 510, a first lower mounting area 520, and a second lower mounting area 530. The first lower mounting area 520 is located in the center of the lower metal plate 320. The lower grinding area 510 is annular and disposed around the first lower mounting area 520. The second lower mounting area 530 is annular and disposed around the lower grinding area 510. The lower grinding area 510 is used to actually contact the ceramic component and grind its surface. The first lower mounting area 520 and the second lower mounting area 530 are both used to connect to the bottom plate 310. Each third connecting block 630 is mounted on the first lower mounting area 520 and / or the second lower mounting area 530. The installation area of ​​the third connecting block 630 accounts for 0.14% to 0.35% of the area of ​​the lower metal plate 320. The installation area of ​​the third connecting block 630 refers to the projected area of ​​the connection between the third connecting block 630 and the lower metal plate 320 projected onto the surface of the lower metal plate 320.

[0053] It is worth noting that the shapes of the first connection block 610 , the second connection block 620 and the third connection block 630 include but are not limited to one of a circle, a rectangle, a triangle, an L-shape, an X-shape, a hexagon and a crescent shape.

[0054] This application proposes some possible embodiments of the arrangement of the first connecting block 610, the second connecting block 620, and the third connecting block 630. However, it should be noted that this application is not limited to the specific embodiments described, and the first connecting block 610, the second connecting block 620, and the third connecting block 630 can also adopt other similar installation methods.

[0055] Reference Figure 3 The connection blocks in the first polishing upper plate 100 and the second polishing upper plate 200 are arranged in the same manner, and the number of the connection blocks is not less than three, which can be divided into the following situations:

[0056] (1) Only located in the second upper mounting area 430, refer to Figure 3 a in the figure, and are distributed in a circular array around the upper metal disk (hereinafter referred to as "upper 1" in this embodiment);

[0057] (2) Located only in the first upper mounting area 420, refer to Figure 3 b in the figure, and arranged to be distributed in a circular array around the upper metal disk ("upper 2");

[0058] (3) Located in the first upper mounting area 420 and the second upper mounting area 430, refer to Figure 3 c in the figure, and arranged to be distributed in a circular array around the upper metal disk ("upper 3").

[0059] Reference Figure 5 In the polishing lower plate 300, the number of the third connecting blocks 630 is not less than three, which can be divided into the following situations:

[0060] The third connecting blocks 630 are installed in the first lower mounting area and the second lower mounting area, wherein the number of the third connecting blocks 630 in the first lower mounting area is odd and the number in the second lower mounting area is even; or the number of the third connecting blocks 630 in the first lower mounting area is even and the number in the second lower mounting area is odd; or the number of the third connecting blocks 630 in the first lower mounting area and the second lower mounting area is odd; or the number of the third connecting blocks 630 in the first lower mounting area and the second lower mounting area is even.

[0061] (1) The third connecting block 630 is only installed in the second lower installation area 530, refer to Figure 5 a in the figure, and are distributed in a circular array around the lower metal disk 320 (hereinafter referred to as "lower 1" in this embodiment);

[0062] (2) The third connecting block 630 is only installed in the first lower installation area 520, refer to Figure 5 b in , and are distributed in a circular array around the lower metal disk 320 ("lower 2");

[0063] (3) The third connecting block 630 is installed in the first lower mounting area 520 and the second lower mounting area 530, refer to Figure 5 In c, the number of third connection blocks 630 in the second lower mounting area 530 is an odd number and the number of third connection blocks 630 in the first lower mounting area 520 is an odd number, and each third connection block 630 is distributed in a circular array around the lower metal plate 320 ("lower 3");

[0064] (4) The third connecting block 630 is installed in the first lower mounting area 520 and the second lower mounting area 530, refer to Figure 5 In d, the number of the third connection blocks 630 in the second lower mounting area 530 is an even number and the number of the third connection blocks 630 in the first lower mounting area 520 is an odd number, and the third connection blocks 630 are distributed in a circular array around the lower metal plate 320 ("lower 4");

[0065] (5) The third connecting blocks 630 are installed in the first lower mounting area 520 and the second lower mounting area 530, referring to Figure 5 e in FIG. 6, the number of the third connecting blocks 630 in the second lower mounting area 530 is odd and the number of the third connecting blocks 630 in the first lower mounting area 520 is even, and each of the third connecting blocks 630 is distributed in a circumferential array around the lower metal disc 320 (“Lower 5”);

[0066] (6) The third connecting blocks 630 are installed in the first lower mounting area 520 and the second lower mounting area 530, referring to Figure 5 f in FIG. 6, the number of the third connecting blocks 630 in the second lower mounting area 530 is even and the number of the third connecting blocks 630 in the first lower mounting area 520 is even, and each of the third connecting blocks 630 is distributed in a circumferential array around the lower metal disc 320 (“Lower 6”).

[0067] Next, by combining various setting modes of the first connecting blocks 610, the second connecting blocks 620 and the third connecting blocks 630, and comparing with the comparative examples, the metal disc connection stability of the three-axis polishing disc assembly structure is understood:

[0068] (1) Performance data test method

[0069]

[0070]

[0071] (2) Setting of the first connecting blocks, the second connecting blocks and the third connecting blocks in each example

[0072]

[0073] Specifically, in the example 1, a=200 mm, b=600 mm, x1=190 mm, x2=110 mm, h1=5 mm, h2=20 mm.

[0074] (3) Test data

[0075]

[0076]

[0077] It can be seen that after using the three-axis polishing disc assembly structure, the bearing value is improved, and the bonding force also meets the requirements, so that the metal disc is not easy to fall off after long-term use, and the utilization rate and service life of the metal disc are improved, which further promotes the optimization of polishing efficiency and polishing precision.

[0078] The device in the second aspect of the present application comprises the three-axis polishing disc assembly structure described above.

[0079] The utility model embodiment has been explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, still can make various changes in the knowledge range possessed by the ordinary skilled in the art without departing from the utility model's tenet. Besides, the embodiment and the feature in the embodiment of the utility model can be combined mutually in the case of not conflicting.

Claims

1. A three-axis grinding and polishing disc assembly structure, characterized in that: Comprising: A first polishing upper platen, the first polishing upper platen includes a first connecting block, a first upper platen bottom plate and a first upper metal plate arranged coaxially with a rotating shaft. The number of the first connecting blocks is at least two and they are all distributed in a circumferential array around the rotating shaft of the first upper platen bottom plate. The first connecting block is arranged between the first upper platen bottom plate and the first upper metal plate and connects the two; A second polishing upper platen, the second polishing upper platen includes a second connecting block, a second upper platen bottom plate and a second upper metal plate arranged coaxially with a rotating shaft. The number of the second connecting blocks is at least two and they are all distributed in a circumferential array around the rotating shaft of the second upper platen bottom plate. The second connecting block is arranged between the second upper platen bottom plate and the second upper metal plate and connects the two; A polishing lower platen, the polishing lower platen includes a third connecting block, a lower platen bottom plate and a lower metal plate arranged coaxially with a rotating shaft. The number of the third connecting blocks is at least two and they are all distributed in a circumferential array around the rotating shaft of the lower platen bottom plate. The third connecting block is arranged between the lower platen bottom plate and the lower metal plate and connects the two; Wherein, the rotating shafts of the first polishing upper platen, the second polishing upper platen and the polishing lower platen are parallel to each other but not coincident.

2. The three-axis grinding and polishing disc assembly structure according to claim 1, characterized in that: The diameters of the first polishing upper platen and the second polishing upper platen are both a, and the diameter of the polishing lower platen is b, where a:b=(4-5):(10-15).

3. The three-axis grinding and polishing disc assembly structure according to claim 2, characterized in that: The shortest distance between the rotating shaft of the first polishing upper platen and the rotating shaft of the polishing lower platen is x1, and the shortest distance between the rotating shaft of the second polishing upper platen and the rotating shaft of the polishing lower platen is x2. The value ranges of x1 and x2 are 0.5a<x1<a, 0.5a<x2<a, and x1>x2.

4. The three-axis grinding and polishing disc assembly structure according to claim 1, characterized in that: The thickness of the first upper metal plate is h1, and the thickness of the second upper metal plate is h2, where h1:h2=1:(1.75-7), the value range of h1 is 5mm to 20mm, and the value range of h2 is 20mm to 35mm.

5. The three-axis grinding and polishing disc assembly structure according to claim 1, characterized in that: The first upper metal plate and the second upper metal plate both include an upper grinding area, a first upper installation area and a second upper installation area. The upper grinding area is annular and is arranged on the periphery of the first upper installation area. The second upper installation area is annular and is arranged on the periphery of the upper grinding area. The first connecting block is installed in the first upper installation area and / or the second upper installation area of the first upper metal plate. The installation area of the first connecting block accounts for 0.64%-1.75% of the area of the first upper metal plate. The second connecting block is installed in the first upper installation area and / or the second upper installation area of the second upper metal plate. The installation area of the second connecting block accounts for 0.64%-1.75% of the area of the second upper metal plate.

6. The three-axis grinding and polishing disc assembly structure according to claim 1, characterized in that: The lower metal plate includes a lower grinding area, a first lower mounting area and a second lower mounting area. The lower grinding area is annular and is arranged on the periphery of the first lower mounting area. The second lower mounting area is annular and is arranged on the periphery of the lower grinding area. The third connecting block is installed in the first lower mounting area and / or the second lower mounting area. The installation area of ​​the third connecting block accounts for 0.14% to 0.35% of the area of ​​the lower metal plate.

7. The three-axis grinding and polishing disc assembly structure according to claim 6, characterized in that: The third connecting blocks are installed in the first lower mounting area and the second lower mounting area, wherein the number of the third connecting blocks in the first lower mounting area is odd and the number in the second lower mounting area is even; or the number of the third connecting blocks in the first lower mounting area is even and the number in the second lower mounting area is odd; or the number of the third connecting blocks in the first lower mounting area and the second lower mounting area are both odd; or the number of the third connecting blocks in the first lower mounting area and the second lower mounting area are both even.

8. The three-axis grinding and polishing disc assembly structure according to claim 1, characterized in that: The shapes of the first connecting block, the second connecting block and the third connecting block include but are not limited to one of a circle, a rectangle, a triangle, an L-shape, an X-shape, a hexagon and a crescent shape.

9. The three-axis grinding and polishing disc assembly structure according to any one of claims 1 to 8, characterized in that: The three-axis grinding and polishing disc assembly structure further includes a pad, which is arranged between the first polishing upper disc and the polishing lower disc, and between the second polishing upper disc and the polishing lower disc.

10. A device, characterized in that The invention comprises the three-axis grinding and polishing disc assembly structure according to any one of claims 1 to 9.

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