Grinding head assembly and application thereof

Abstract

The utility model discloses a grinding head assembly which aims at achieving slight shaking of a grinding wheel disc through an elastic conical ring, a knuckle bearing does not need to be arranged, and the elastic centering performance of the grinding wheel disc is better. Meanwhile, the utility model provides a circulation grinding and polishing device, an electrodeless grinding and polishing device, a rough grinding and polishing device and a grinding and polishing machine, the technical scheme is that the grinding head assembly comprises a rotating shaft, a rigid conical ring, an elastic conical ring and a grinding wheel disc, and the grinding wheel disc is used for fixing a grinding tool; the rigid conical ring sleeves the rotating shaft and rotates synchronously with the rotating shaft, and the outer wall of the rigid conical ring is provided with a first annular slope surface; the rigid cone ring is sleeved with the elastic cone ring, and the inner wall of the elastic cone ring is attached to the first annular slope surface; the elastic conical ring is sleeved with the grinding wheel disc, the inner wall of the grinding wheel disc is provided with a second annular slope face, and the second annular slope face is attached to the outer wall of the elastic conical ring.

Description

Technical Field

[0001] This utility model belongs to the field of grinding and polishing technology, and more specifically, relates to a grinding head assembly and its application. Background Technology

[0002] CN102581754A discloses a grinding head for an automatic resin grinding machine, including a grinding head base and a connecting plate. The grinding head base has a connecting hole for connecting to the drive spindle of the automatic grinding machine. The connecting plate is connected to the resin grinding disc. A spherical bearing and several cylindrical support members made of elastic material are provided between the grinding head base and the connecting plate. The spherical bearing is fixed to the center of the grinding head base and the connecting plate by a bearing seat, a bearing sleeve and an end cap. The cylindrical support members made of elastic material are equidistantly distributed around the spherical bearing.

[0003] The aforementioned grinding head uses a spherical bearing to allow the connecting disc to rock, and uses an elastic cylindrical support to allow the connecting disc to extend and retract to return to its original position. Due to its structural characteristics, the spherical bearing is relatively large, and the overall structure of the grinding head is also relatively large when the spherical bearing and the cylindrical support are installed. In addition, the cylindrical support contacts the grinding head seat and the connecting disc on the top and bottom respectively. When it is under pressure, only a few cylindrical supports on one side are under pressure, and its elastic force is basically concentrated on one side. Therefore, the elastic centering performance of the connecting disc is poor. Utility Model Content

[0004] The main purpose of this utility model is to provide a grinding head assembly that utilizes an elastic conical ring to achieve slight shaking of the grinding wheel disk without the need for a spherical bearing, resulting in better elastic centering performance of the grinding wheel disk. Simultaneously, it provides a circulating grinding and polishing device, a stepless grinding and polishing device, a coarse grinding and polishing device, and a grinding and polishing machine.

[0005] According to a first aspect of the present invention, a grinding head assembly is provided, comprising a rotating shaft, a rigid conical ring, an elastic conical ring, and a grinding wheel, wherein the grinding wheel is used to fix the grinding tool.

[0006] The rigid conical ring is fitted on the rotating shaft and rotates synchronously with the rotating shaft. The outer wall of the rigid conical ring has a first annular slope.

[0007] The elastic conical ring is fitted onto the rigid conical ring, and the inner wall of the elastic conical ring is in contact with the first annular slope.

[0008] The grinding wheel is fitted onto the elastic conical ring, and the inner wall of the grinding wheel has a second annular slope, which fits against the outer wall of the elastic conical ring.

[0009] In the above-mentioned grinding head assembly, the end of the first annular slope closer to the grinding tool is the smaller end, and the end of the first annular slope farther away from the grinding tool is the larger end.

[0010] In the above-mentioned grinding head assembly, the end of the rigid conical ring away from the grinding tool is provided with an annular baffle, and the end of the elastic conical ring away from the grinding tool abuts against the annular baffle.

[0011] In the above-mentioned grinding head assembly, an annular flange is provided on the inner wall of the grinding wheel, and the annular flange is located between the end of the rotating shaft and the grinding tool;

[0012] It also includes a cover plate and bolts, the cover plate being mounted on the side of the annular flange facing away from the rotating shaft, the bolts passing through the cover plate and threadedly connected to the rotating shaft, the bolts being rotated to allow the second annular slope to press against the elastic cone ring.

[0013] In the above-mentioned grinding head assembly, a first adhesive layer is provided between the inner wall of the elastic conical ring and the first annular slope.

[0014] In the above-mentioned grinding head assembly, a second adhesive layer is provided between the outer wall of the elastic conical ring and the second annular slope.

[0015] In the aforementioned grinding head assembly, the elastic conical ring is made of silicone.

[0016] According to a second aspect of the present invention, a circulating grinding and polishing device is provided, comprising a rotating disk and a first driving module for driving the rotating disk to rotate. The rotation axis of the rotating disk is a first axis. A plurality of second driving modules are evenly distributed around the first axis on the rotating disk. The output end of the second driving module is provided with a grinding head assembly as described in the first aspect. The second driving module drives the rotating shaft to rotate. The axis of the rotating shaft is a second axis. The first axis and the second axis are parallel.

[0017] In the above-mentioned circulating polishing device, the second drive module is a motor, and the rotating shaft and the output shaft of the motor are an integral structure.

[0018] In the aforementioned circulating polishing device, the rotating disk can be raised and lowered under the drive of a lifting module.

[0019] According to a third aspect of the present invention, a stepless grinding and polishing device is provided, comprising a rotating disk and a first driving module for driving the rotating disk to rotate. The rotation axis of the rotating disk is a first axis, and a plurality of grinding head assemblies as described in the first aspect are evenly distributed around the first axis. The rotating shaft is rotatably connected to the rotating disk, and the axis of the rotating shaft is a second axis, with the first axis and the second axis being parallel.

[0020] In the above-mentioned stepless grinding and polishing device, the second drive module is a motor, and the rotating shaft and the output shaft of the motor are an integral structure.

[0021] In the aforementioned stepless polishing device, the rotating disk can be raised and lowered under the drive of a lifting module.

[0022] According to a fourth aspect of this utility model, a coarse grinding and polishing device is provided, comprising a rotating disk and a first driving module for driving the rotating disk to rotate. The rotation axis of the rotating disk is a first axis. A plurality of second driving modules are evenly distributed around the first axis on the rotating disk. The output end of the second driving module is provided with a grinding head assembly as described in the first aspect. The second driving module drives the rotating shaft to rotate. The axis of the rotating shaft is a second axis. The first axis and the second axis have a preset angle, which is 60° to 90°.

[0023] In the aforementioned coarse grinding and polishing device, the second drive module is a motor, and the rotating shaft and the output shaft of the motor are an integral structure.

[0024] In the aforementioned coarse grinding and polishing device, the rotating disk can be raised and lowered under the drive of a lifting module.

[0025] According to a fifth aspect of the present invention, a grinding and polishing machine is provided, including a frame, on which a plurality of second drive modules are provided, the output end of the second drive modules is provided with a grinding head assembly as described in the first aspect, the second drive modules drive the rotating shaft to rotate, and the plurality of second drive modules are arranged in a linear manner.

[0026] In the aforementioned grinding and polishing machine, the second drive module is a motor, and the rotating shaft and the output shaft of the motor are an integral structure.

[0027] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0028] In this invention, a rigid conical ring is set on the rotating shaft, and an elastic conical ring is pressed onto the rigid conical ring by the grinding wheel, so that both the inner and outer walls of the elastic conical ring are conical surfaces. The elastic conical ring can be compressed axially or radially. Therefore, the grinding wheel can be slightly shaken even without a spherical bearing. The overall structure is simpler and more compact, with a smaller volume and reduced cost.

[0029] Meanwhile, the elastic conical ring gives the grinding wheel disc the ability to elastically center itself. When the grinding wheel contacts the undulating surface of the material, it shakes slightly, and the grinding wheel disc shakes slightly as well. At this time, the lower end of one side of the elastic conical ring will be pressed, and a restoring force will be generated at the pressed position. The upper end of the corresponding side of the elastic conical ring will also be pressed, and a restoring force will be generated at the pressed position. The two restoring forces work together to give the grinding wheel disc a tendency to return to its original position. Moreover, when these two restoring forces act on the grinding wheel disc, they are diagonally arranged to maximize the tendency of the grinding wheel disc to return to its original position, making the polishing surface of the grinding wheel tend to be perpendicular to the axis of rotation. This structure makes the elastic centering performance of the grinding wheel disc better. Attached Figure Description

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0031] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0032] Figure 2 This is a structural schematic diagram of Embodiment 2 of the present invention;

[0033] Figure 3 This is a structural schematic diagram of Embodiment 3 of the present invention;

[0034] Figure 4 This is a structural schematic diagram of Embodiment 4 of the present invention;

[0035] Figure 5 This is a structural schematic diagram of Embodiment 5 of this utility model.

[0036] The figure labels for each figure are as follows:

[0037] 1. Rotating shaft; 2. Rigid conical ring; 21. Annular baffle; 3. Elastic conical ring; 4. Grinding wheel; 41. Annular flange; 5. Cover plate; 6. Bolt; 100. Revolutionary disc; 200. First drive module; 300. Second drive module; 400. Frame. Detailed Implementation

[0038] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0039] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0040] Example 1

[0041] Reference Figure 1 As shown, a grinding head assembly includes a rotating shaft 1, a rigid conical ring 2, an elastic conical ring 3, and a grinding wheel 4, the grinding wheel 4 being used to fix the grinding tool;

[0042] The rigid conical ring 2 is fitted on the rotating shaft 1 and rotates synchronously with the rotating shaft 1. The outer wall of the rigid conical ring 2 has a first annular slope. The end of the first annular slope closer to the grinding tool is the smaller end, and the end of the first annular slope away from the grinding tool is the larger end. An annular baffle 21 is provided at the end of the rigid conical ring 2 away from the grinding tool.

[0043] The elastic conical ring 3 is fitted onto the rigid conical ring 2, and the inner wall of the elastic conical ring 3 is in contact with the first annular slope; the end of the elastic conical ring 3 away from the mold is pressed against the annular baffle 21.

[0044] The grinding wheel 4 is fitted on the elastic cone ring 3. The inner wall of the grinding wheel 4 has a second annular slope, which is in contact with the outer wall of the elastic cone ring 3.

[0045] The inner wall of the grinding wheel 4 is provided with an annular flange 41, which is located between the end of the rotating shaft 1 and the grinding tool.

[0046] It also includes a cover plate 5 and a bolt 6. The cover plate 5 is mounted on the side of the annular flange 41 facing away from the rotating shaft 1. The bolt 6 passes through the cover plate 5 and is threaded to the rotating shaft 1. Rotating the bolt 6 allows the second annular slope to press against the outer wall of the elastic cone ring 3, and the inner wall of the elastic cone ring 3 to press against the first annular slope.

[0047] Based on this, rotating shaft 1 drives grinding wheel 4 to rotate. Relying on the friction between grinding wheel 4 and elastic conical ring 3, and the friction between elastic conical ring 3 and rigid conical ring 2, grinding wheel 4, elastic conical ring 3, rigid conical ring 2 and rotating shaft 1 rotate together.

[0048] The inner and outer walls of the elastic conical ring 3 are both conical surfaces. The elastic conical ring 3 can be subjected to axial pressure or radial pressure. Therefore, the grinding wheel 4 can also be slightly rocked without a spherical bearing. The overall structure is simpler, more compact, smaller in size, and reduces costs.

[0049] Meanwhile, the elastic conical ring 3 gives the grinding wheel 4 the ability to elastically center itself. When the grinding wheel contacts the undulating surface of the plate, the grinding wheel shakes slightly, and the grinding wheel 4 shakes slightly as well. At this time, the lower end of one side of the elastic conical ring 3 will be pressed, and a restoring force will be generated at the pressed position. The upper end of the corresponding side of the elastic conical ring 3 will also be pressed, and a restoring force will be generated at the pressed position. The two restoring forces work together to give the grinding wheel 4 a tendency to return to its original position. Moreover, when these two restoring forces act on the grinding wheel 4, they are arranged diagonally to maximize the tendency of the grinding wheel 4 to return to its original position, so that the grinding surface of the grinding wheel tends to be perpendicular to the rotating shaft 1. This structure makes the elastic centering performance of the grinding wheel 4 better.

[0050] In this embodiment, the outer wall of the rigid conical ring 2 must be an annular slope. This allows the elastic conical ring 3 to press against the rigid conical ring 2, providing support. Simultaneously, the thickness of the elastic conical ring 3 can be uniform, resulting in a more balanced rebound force. If the outer wall of the rigid conical ring 2 is cylindrical, the elastic conical ring 3 will not always be pressed firmly against it, making it difficult for the rigid conical ring 2 to provide support for the elastic conical ring 3, thus affecting polishing. Furthermore, the uneven thickness of the elastic conical ring 3 leads to differences in elastic properties at its two ends, resulting in significant differences in rebound force and affecting its elastic centering performance.

[0051] In this embodiment, the elastic cone ring 3 is made of silicone, which is not easily deformed. During long-term polishing, the elastic cone ring 3 can maintain the preload and will not fail to maintain its elasticity. Of course, the elastic cone ring 3 can also be made of other elastic materials that are not easily deformed.

[0052] In this embodiment, the rotating shaft 1 is a stepped shaft, the rigid conical ring 2 is sleeved on the rotating shaft 1, and its annular baffle 21 abuts against the stepped surface of the rotating shaft 1; the rotating shaft 1 is fixedly connected to the rigid conical ring 2 by keying.

[0053] In some other embodiments, the cover plate 5 and the annular flange 41 can be an integral structure, omitting the step of installing the cover plate 5, and the bolts 6 can be directly inserted.

[0054] In some other embodiments, a first adhesive layer is provided between the inner wall of the elastic cone ring 3 and the first annular slope, and a second adhesive layer is provided between the outer wall of the elastic cone ring 3 and the second annular slope. The elastic cone ring 3 can be bonded to the rigid cone ring 2 and the grinding wheel 4 by means of adhesive, which can also realize the synchronous rotation of the rigid cone ring 2, the elastic cone ring 3 and the grinding wheel 4.

[0055] Example 2

[0056] Reference Figure 1 and Figure 2 As shown, a circulating grinding and polishing device includes a rotating disk 100 and a first driving module 200 that drives the rotating disk 100 to rotate. The rotation axis 1 of the rotating disk 100 is a first axis. A plurality of second driving modules 300 are evenly distributed around the first axis on the rotating disk 100. The output end of the second driving module 300 is provided with a grinding head assembly as described in Embodiment 1. The second driving module 300 drives the rotating shaft 1 to rotate. The axis of the rotating shaft 1 is a second axis. The first axis and the second axis are parallel.

[0057] The rotating disk 100 rotates, causing the second drive module 300 to revolve around the first axis. The second drive module 300 drives the rotating shaft 1 to rotate around the second rotating shaft 1, so that the grinding wheel 4 rotates. The abrasive is installed on the grinding wheel 4 and can grind and polish the board, etc. Since the grinding wheel 4 can be slightly rocked, the abrasive can adapt to the undulating surface of the board. Based on the elastic centering performance of the grinding wheel 4, the grinding and polishing surface of the abrasive tends to be perpendicular to the second axis to ensure the flatness after grinding and polishing.

[0058] In this embodiment, the second drive module 300 is a motor, and the rotating shaft 1 and the output shaft of the motor are integrated into one structure, resulting in higher transmission efficiency; it is even possible to remove the rotating shaft 1 from the grinding head assembly to form a standard module, which can be directly fitted onto the output shaft of the motor, making installation extremely simple.

[0059] In this embodiment, the rotary disk 100 can be raised and lowered under the drive of a lifting module, thereby controlling the contact between the mold and the plate, and allowing the mold to press onto the plate; the specific structure of the lifting module can be referred to patent CN116394090A, and will not be described in detail here.

[0060] In this embodiment, the first drive module 200 is a synchronous belt drive structure.

[0061] In some other embodiments, the second drive module 300 may use a hollow motor to facilitate water filling, and a hollow shaft and hollow bolts may be designed accordingly.

[0062] Example 3

[0063] Reference Figure 1 and Figure 3 As shown, a stepless grinding and polishing device includes a rotating disk 100 and a first driving module 200 for driving the rotating disk 100 to rotate. The rotation axis 1 of the rotating disk 100 is a first axis, and a plurality of grinding head assemblies as described in Embodiment 1 are evenly distributed around the first axis. The rotating shaft 1 is rotatably connected to the rotating disk 100, and the axis of the rotating shaft 1 is a second axis. The first axis and the second axis are parallel.

[0064] The rotating disk 100 rotates, causing the rotating shaft 1 to revolve around the first axis. The abrasive is mounted on the grinding wheel 4. The abrasive can rotate when it comes into contact with the material, which in turn drives the rotating shaft 1 to rotate. Since the grinding wheel 4 can be slightly rocked, the abrasive can adapt to the undulating surface of the material. Based on the elastic centering performance of the grinding wheel 4, the polishing surface of the abrasive tends to be perpendicular to the second axis to ensure the flatness after polishing.

[0065] In this embodiment, the second drive module 300 is a motor, and the rotating shaft 1 and the output shaft of the motor are integrated into one structure, resulting in higher transmission efficiency; it is even possible to remove the rotating shaft 1 from the grinding head assembly to form a standard module, which can be directly fitted onto the output shaft of the motor, making installation extremely simple.

[0066] In this embodiment, the rotary disk 100 can be raised and lowered under the drive of a lifting module, thereby controlling the contact between the mold and the plate, and allowing the mold to press onto the plate; the specific structure of the lifting module can be referred to patent CN116394090A, and will not be described in detail here.

[0067] In this embodiment, the first drive module 200 is a synchronous belt drive structure.

[0068] Example 4

[0069] Reference Figure 1 and Figure 4 As shown, a coarse grinding and polishing device includes a rotating disk 100 and a first drive module 200 that drives the rotating disk 100 to rotate. The rotation axis 1 of the rotating disk 100 is the first axis. A plurality of second drive modules 300 are evenly distributed around the first axis on the rotating disk 100. The output end of the second drive module 300 is provided with a grinding head assembly as described in Embodiment 1. The second drive module 300 drives the rotating shaft 1 to rotate. The axis of the rotating shaft 1 is the second axis. The first axis and the second axis have a preset angle, which is 60° to 90°.

[0070] The second drive module 300 is horizontally arranged on the rotary disk 100, so that the first axis is perpendicular or nearly perpendicular to the second axis. The outer circumferential surface of the abrasive on the grinding wheel 4 is the polishing surface. The first drive module 200 drives the rotary disk 100 to rotate, so that the second drive module 300 revolves around the first axis. The second drive module 300 drives the rotating shaft 1 to rotate around the first axis, so that the grinding wheel 4 rotates, allowing the abrasive to polish the board. The grinding wheel 4 can be slightly rocked, so that the abrasive can adapt to the undulating surface of the board. Based on the elastic centering performance of the grinding wheel 4, the axis of the abrasive tends to be parallel to the second axis. The axis of the abrasive will then tend to be parallel to the surface of the board, resulting in better flatness after rough polishing, which is beneficial for subsequent fine polishing.

[0071] In this embodiment, the second drive module 300 is a motor, and the rotating shaft 1 and the output shaft of the motor are integrated into one structure, resulting in higher transmission efficiency; it is even possible to remove the rotating shaft 1 from the grinding head assembly to form a standard module, which can be directly fitted onto the output shaft of the motor, making installation extremely simple.

[0072] In this embodiment, the rotary disk 100 can be raised and lowered under the drive of a lifting module, thereby controlling the contact between the mold and the plate, and allowing the mold to press onto the plate; the specific structure of the lifting module can be referred to patent CN116394090A, and will not be described in detail here.

[0073] In this embodiment, the first drive module 200 is a synchronous belt drive structure.

[0074] Example 5

[0075] Reference Figure 1 and Figure 5 As shown, a grinding and polishing machine includes a frame 400, on which a plurality of second drive modules 300 are provided. The output end of the second drive module 300 is provided with a grinding head assembly as described in Embodiment 1. The second drive module 300 drives the rotating shaft 1 to rotate. The plurality of second drive modules 300 are arranged in a straight line.

[0076] This polishing machine is suitable for polishing small boards. The axis of the rotating shaft 1 is generally perpendicular to the board. The abrasives are mounted on the polishing disc 4. The board passes under the abrasives, and each abrasive sequentially polishes the board. The roughness of the polished surface of each abrasive is different, so that the board can smoothly complete rough polishing and fine polishing. Since the polishing disc 4 can be slightly shaken, the abrasives can adapt to the undulating surface of the board. Based on the elastic centering performance of the polishing disc 4, the polishing surface of the abrasive tends to be perpendicular to the second axis to ensure the flatness after polishing.

[0077] In this embodiment, the second drive module 300 is a motor, and the rotating shaft 1 and the output shaft of the motor are integrated into one structure, resulting in higher transmission efficiency; it is even possible to remove the rotating shaft 1 from the grinding head assembly to form a standard module, which can be directly fitted onto the output shaft of the motor, making installation extremely simple.

[0078] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An abrasive head assembly comprising: The grinding head assembly comprises a rotating shaft, a rigid conical ring, an elastic conical ring and a grinding disc, and the grinding disc is used for fixing a grinding tool; The rigid conical ring is sleeved on the rotating shaft and rotates synchronously with the rotating shaft, and the outer wall of the rigid conical ring has a first annular slope surface; The elastic conical ring is sleeved on the rigid conical ring, and the inner wall of the elastic conical ring is attached to the first annular slope surface; The grinding disc is sleeved on the elastic conical ring, and the inner wall of the grinding disc has a second annular slope surface which is attached to the outer wall of the elastic conical ring.

2. The head assembly of claim 1, wherein, The first annular slope surface has a smaller end close to the grinding tool and a larger end away from the grinding tool.

3. The head assembly of claim 2, wherein, The rigid conical ring is provided with an annular baffle at an end away from the grinding tool, and the elastic conical ring is abutted against the annular baffle at an end away from the grinding tool.

4. The head assembly of claim 1 wherein, The inner wall of the grinding disc is provided with an annular flange between the end of the rotating shaft and the grinding tool; The grinding head assembly further comprises a cover plate and a bolt, the cover plate is arranged on the side of the annular flange away from the rotating shaft, the bolt is threadedly connected with the rotating shaft through the cover plate, and the second annular slope surface is pressed against the elastic conical ring by rotating the bolt.

5. The head assembly of claim 1 wherein, A first adhesive layer is arranged between the inner wall of the elastic conical ring and the first annular slope surface; A second adhesive layer is arranged between the outer wall of the elastic conical ring and the second annular slope surface.

6. The head assembly of claim 1, wherein, The elastic conical ring is made of silica gel.

7. A flow-through polishing device, comprising an orbiting disc, a first driving module driving the orbiting disc to rotate, a rotation axis of the orbiting disc being a first axis, and a plurality of second driving modules being evenly distributed around the first axis on the orbiting disc, characterized in that, The output end of the second driving module is provided with the grinding head assembly as claimed in any one of claims 1-6, the second driving module drives the rotating shaft to rotate, the axis of the rotating shaft is a second axis, and the first axis is parallel to the second axis; The public disc is driven to be lifted and lowered by a lifting module.

8. A non-polar grinding and polishing device, comprising a public rotation disc, a first driving module for driving the public rotation disc to rotate, and the rotation axis of the public rotation disc is a first axis, characterized in that, A plurality of grinding head assemblies as claimed in any one of claims 1-6 are circumferentially and uniformly distributed around the first axis, the rotating shaft is rotationally connected with the public disc, the axis of the rotating shaft is a second axis, and the first axis is parallel to the second axis; The public disc is driven to be lifted and lowered by a lifting module.

9. A rough grinding and polishing device comprising an orbiting disc, a first driving module driving the orbiting disc to rotate, a rotation axis of the orbiting disc being a first axis, a plurality of second driving modules being uniformly distributed around the first axis on the orbiting disc, characterized in that, The output end of the second driving module is provided with the grinding head assembly as claimed in any one of claims 1-6, the second driving module drives the rotating shaft to rotate, the axis of the rotating shaft is a second axis, and the first axis has a preset angle with the second axis, the preset angle being 60°-90°. The public disc is driven to be lifted and lowered by a lifting module.

10. A grinding and polishing machine comprising a frame, a plurality of second driving modules are arranged on the frame, characterized in that, The output end of the second driving module is provided with the grinding head assembly as claimed in any one of claims 1-6, the second driving module drives the rotating shaft to rotate, and a plurality of the second driving modules are arranged in a straight line.

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