Silicon core cone grinding equipment and feeding and discharging mechanism thereof

Abstract

The utility model relates to the technical field of silicon core processing, in particular to silicon core cone grinding equipment and a feeding and discharging mechanism thereof, and the feeding and discharging mechanism of the silicon core cone grinding equipment is used for feeding and discharging silicon cores on a multi-layer rack and comprises a mounting seat, a clamping module, a feeding mechanism and a discharging mechanism, the number of the clamping modules is multiple, each clamping module comprises a lifting unit and a clamp used for clamping the silicon core, and the lifting unit is used for driving the clamp to conduct first-stage lifting; the lifting module is arranged on the mounting seat and is used for driving the mounting seat to drive the clamping module to perform secondary lifting; and the transverse moving module is connected with the mounting seat or the lifting module and is used for driving the mounting seat to move back and forth between the multi-layer material rack and a silicon core processing station. The silicon core feeding and discharging device can well adapt to feeding and discharging of silicon cores of a multi-layer rack, the overall size of cone grinding equipment is reduced, cost is reduced, the storage capacity of the silicon cores is improved, and machining efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of silicon core processing technology, and in particular to a silicon core grinding cone device and its loading and unloading mechanism. Background Technology

[0002] After silicon rods are cut into thin strips of silicon cores, one or both ends of the silicon cores usually need to be tapered. To achieve automated production, the two sides of the taper mill are set up as loading and unloading areas to hold single-layer racks and silicon cores. A clamping mechanism is set on the single-layer rack to transfer silicon cores from the single-layer rack to the station of the taper mill, or to remove silicon cores from the station of the taper mill to the single-layer rack. This results in a large overall size of silicon core taper milling equipment, high equipment and space costs, poor silicon core storage capacity, and inconvenience for batch transfer of silicon cores before and after taper milling. The clamping mechanism can only load or unload a single silicon core at a time, resulting in low processing efficiency. Utility Model Content

[0003] This utility model solves the problems in related technologies and proposes a silicon core grinding cone device and its loading and unloading mechanism, which can better adapt to the loading and unloading of silicon cores in multi-layer material racks, reduce the overall volume of the grinding cone device, reduce costs, improve the storage capacity of silicon cores, and effectively improve processing efficiency.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] A loading and unloading mechanism for a silicon core grinding conicator, used for loading and unloading silicon cores on a multi-layer material rack, includes: a mounting base on which a clamping module is mounted; the clamping module comprises multiple sets, each set including a lifting unit and a clamp for clamping the silicon core, the lifting unit driving the clamp for a first-stage lifting; a lifting module disposed on the mounting base, the lifting module driving the mounting base to move the clamping module for a second-stage lifting; and a traverse module connected to the mounting base or the lifting module, used to drive the mounting base to move back and forth between the multi-layer material rack and the silicon core processing station.

[0006] According to one embodiment of the present invention, each clamping module has multiple clamps, and the multiple clamps are arranged on the same clamping platform along the length direction of the silicon core. The lifting unit is used to drive the clamping platform to perform a single-stage lifting.

[0007] According to one embodiment of the present invention, the clamping module further includes a feeding unit. The fixed end of the feeding unit is mounted on the mounting base or the lifting unit, and the movable end of the feeding unit is connected to the clamp. The feeding unit is used to drive the clamp to reciprocate along the length direction of the silicon core.

[0008] According to one embodiment of the present invention, the lifting module is connected to the transverse module via a connecting plate. The lifting module may include: a lifting motor, a ball screw, and a guide rod mounted on the mounting base. A ball nut mounted on the connecting plate is sleeved on the ball screw, and a linear bearing mounted on the connecting plate is sleeved on the guide rod. The lifting motor drives the ball screw to move the mounting base up and down along the guide rod.

[0009] According to one embodiment of the present invention, the transverse module includes: a transverse motor, a linear slide rail, and a slider slidably connected to the linear slide rail. The transverse motor is used to drive the slider to move back and forth along the linear slide rail, and the slider is connected to the connecting plate.

[0010] In addition, to achieve the above objectives, this utility model also proposes a silicon core grinding cone device.

[0011] A silicon core grinding device includes: a multi-layer material rack, a loading and unloading mechanism as described above, and a grinding machine. The loading and unloading mechanism is used to transfer silicon cores on the multi-layer material rack to the silicon core processing station corresponding to the grinding machine, or to move silicon cores from the silicon core processing station to the multi-layer material rack.

[0012] According to one embodiment of the present invention, the multi-layer material rack includes a movable material rack, a fixed material rack, and multiple silicon core placement racks for holding silicon cores. The movable material rack forms multiple first placement layers, and the fixed material rack is provided with multiple second placement layers that match the first placement layers. The first placement layers and the second placement layers cooperate to form the movable channel of the silicon core placement rack.

[0013] According to one embodiment of the present invention, both the first and second storage layers are provided with omnidirectional balls suitable for moving the silicon core placement rack for holding silicon cores.

[0014] According to one embodiment of the present invention, clamps are provided on the first shelf and / or the second shelf, the clamps being used to fix the silicon core placement rack located on the shelf.

[0015] According to one embodiment of the present invention, the grinding machine includes a CNC machine tool and a grinding cone component disposed on a moving end of the CNC machine tool, the moving end being used to drive the grinding cone component to move along three axes.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model achieves two-stage lifting of the clamping module and one-stage lifting of the clamping fixture by setting up lifting modules and lifting units respectively, realizing unified control of the height of all clamping modules and individual control of a single clamping module. It can better adapt to the loading and unloading of silicon cores in multi-layer material racks, thereby reducing the overall volume of the grinding cone equipment and reducing costs, while helping to improve the storage capacity of silicon cores and facilitating the batch transfer of silicon cores before and after grinding. Moreover, compared with providing a long-stroke lifting mechanism for a single clamping module, the multi-stage lifting setting can meet more complex motion requirements in a more compact space, which is conducive to modular design and later maintenance. When one or more clamping modules are loading between the multi-layer material rack and the silicon core processing station, other clamping modules can remove the processed silicon cores from the silicon core processing station and put them back into the multi-layer material rack, thereby effectively improving processing efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the loading and unloading mechanism of a silicon core grinding cone device according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the loading and unloading mechanism of an embodiment of the present invention, omitting the transverse movement module;

[0019] Figure 3 This is a schematic diagram of the structure of a clamping module according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of a lifting module according to an embodiment of the present invention;

[0021] Figure 5 This is a rear view of a lifting module according to an embodiment of the present invention, omitting the mounting base;

[0022] Figure 6 This is a structural schematic diagram of a transverse module according to an embodiment of the present invention, omitting the column part connected to the horizontal support;

[0023] Figure 7 This is a rear view of a transverse moving module according to an embodiment of the present invention, omitting the horizontal support;

[0024] Figure 8 This is a schematic diagram of the structure of a silicon core grinding cone device according to an embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of the structure of a multi-layer material rack according to an embodiment of the present invention;

[0026] Figure 10 This is a schematic diagram of the structure of a multi-layer material rack with the silicon core placement rack omitted according to an embodiment of the present invention;

[0027] Figure 11 This is a schematic diagram of the structure of a grinding cone machine according to an embodiment of the present invention.

[0028] In the picture:

[0029] 1. Mounting base; 2. Clamping module; 21. Lifting unit; 22. Fixture; 23. Fixture platform; 24. Feeding unit; 3. Lifting module; 31. Lifting motor; 32. Ball screw; 33. Guide rod; 34. Ball nut; 35. Linear bearing; 36. Lifting cable chain; 4. Lateral movement module; 41. Lateral movement motor; 42. Linear slide rail; 43. Slider; 44. Synchronous belt; 45. Synchronous belt pulley; 46. Lateral movement cable chain; 5. Connecting plate; 6. Horizontal support.

[0030] 10. Multi-layer material rack; 101. Movable material rack; 101a. First storage layer; 101b. Casters; 102. Fixed material rack; 102a. Second storage layer; 102b. Ground support; 103. Silicon core placement rack; 104. Ball bearing; 105. Clamp; 20. Loading and unloading mechanism; 30. Grinding cone machine; 301. CNC machine tool; 302. Grinding cone component. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0032] like Figure 1 and 2 As shown, the loading and unloading mechanism of the silicon core grinding cone equipment of this utility model embodiment is used for loading and unloading silicon cores on a multi-layer material rack. It includes: a mounting base 1, a clamping module 2, a lifting module 3, and a transverse module 4. The mounting base 1 is equipped with the clamping module 2. There are multiple clamping modules 2, each including a lifting unit 21 and a clamp 22 for clamping the silicon core. The lifting unit 21 drives the clamp 22 for primary lifting. The clamp 22 can be a pneumatic gripper with clamping blocks adapted to the shape of the silicon core on its claw plates, or it can be an electric clamp 22, etc. The lifting unit 21 can be a cylinder or an electric drive device such as a motor; this embodiment does not limit this. The lifting module 3 is mounted on the mounting base 1 and drives the mounting base 1 to move the clamping module 2 for secondary lifting. The transverse module 4 is connected to the mounting base 1 or the lifting module 3 and drives the mounting base 1 to move back and forth between the multi-layer material rack and the silicon core processing station. Figure 1In the embodiment shown, the transverse module 4 is connected to the lifting module 3 via the connecting plate 5. The transverse module 4 is mounted on the horizontal support 6, which can be mounted on the column or on the frame near the silicon core processing station, thereby setting the loading and unloading mechanism above the silicon core.

[0033] It is understood that the loading and unloading mechanism in this embodiment achieves two-stage lifting of the clamping module 2 and one-stage lifting of the clamp 22 by setting up the lifting module 3 and the lifting unit 21 respectively. This realizes unified control of the height of all clamping modules 2 and individual control of a single clamping module 2, which can better adapt to the loading and unloading of silicon cores in multi-layer material racks. This reduces the overall volume of the grinding equipment and lowers the cost, while also helping to improve the storage capacity of silicon cores and facilitating the batch transfer of silicon cores before and after grinding. Moreover, compared with providing a long-stroke lifting mechanism for a single clamping module 2, the multi-stage lifting setting can meet more complex motion requirements in a more compact space, which is conducive to modular design and later maintenance. When one or more clamping modules 2 are loading between the multi-layer material rack and the silicon core processing station, other clamping modules 2 can remove the processed silicon cores from the silicon core processing station and put them back into the multi-layer material rack, thereby effectively improving processing efficiency.

[0034] In one embodiment of this utility model, the number of clamps 22 in each clamping module 2 can be multiple, for example, two. Multiple clamps 22 are arranged on the same clamping platform 23 along the length direction of the silicon core. Figure 3 As shown, the lifting unit 21 is used to drive the fixture platform 23 to perform a first-level lifting, so that the fixture 22 on the fixture platform 23 can drive the silicon core to lift synchronously. This avoids the difficulty of a single fixture 22 in holding the silicon core and keeping it moving smoothly, which would cause the silicon core to change its posture too much during the movement, or even fall off and affect the normal processing.

[0035] like Figure 3As shown, in one embodiment of this utility model, the clamping module 2 may further include a feeding unit 24, such as a rodless cylinder or an electric slide. The feeding unit 24 is used to drive the clamp 22 to reciprocate along the length of the silicon core, thereby adjusting the position of the silicon core in the silicon core processing station for direct processing. The fixed end of the feeding unit 24 is mounted on the mounting base 1 or the lifting unit 21, and the movable end of the feeding unit 24 is connected to the clamp 22. For example, the feeding unit 24 is disposed between the lifting unit 21 and the clamp 22, or between the lifting unit 21 and the mounting base 1, and is connected to the clamp 22 through the lifting unit 21. When there is a single clamp 22 on the clamping module 2, the movable end of the feeding unit 24 can be directly connected to the clamp 22; when there are multiple clamps 22 on the clamping module 2, the fixed end of the feeding unit 24 can be installed on the lifting unit 21, and a clamping platform 23 can be installed on the movable end of the feeding unit 24 so that the feeding unit 24 drives the clamps 22 on the same clamping platform 23 to move synchronously, etc. This embodiment does not impose any limitations.

[0036] like Figure 1 , Figure 4 and Figure 5 As shown, in one embodiment of this utility model, the lifting module 3 is connected to the transverse module 4 via a connecting plate 5. The lifting module 3 may include: a lifting motor 31, a ball screw 32, and a guide rod 33 mounted on the mounting base 1. A ball nut 34 mounted on the connecting plate 5 is sleeved on the ball screw 32, and a linear bearing 35 mounted on the connecting plate 5 is sleeved on the guide rod 33. The lifting motor 31 drives the ball screw 32 to move the mounting base 1 up and down along the guide rod 33. In some other embodiments of this utility model, the mounting base 1 may also be driven to move up and down using a screw motor, gear rack, synchronous belt lifting, etc., according to actual needs. This embodiment does not limit this. To ensure the stability and safety of the long-stroke lifting of the clamping module 2, the lifting module 3 may also include a lifting drag chain 36. The first end of the lifting drag chain 36 is mounted on the mounting base 1, and the second end of the lifting drag chain 36 is mounted on the connecting plate 5.

[0037] In one embodiment of this utility model, the transverse module 4 may include: a transverse motor 41, a linear slide rail 42, and a slider 43 slidably connected to the linear slide rail 42. The transverse motor 41 is used to drive the slider 43 to move back and forth along the linear slide rail 42. The slider 43 is connected to the connecting plate 5 so that when the slider 43 moves back and forth along the linear slide rail 42, it drives the mounting base 1 connected to the lifting module 3 and the clamping module 2 mounted on the mounting base 1 to move back and forth between the multi-layer material rack and the silicon core processing station.

[0038] like Figure 6 and Figure 7As shown, in one embodiment of this utility model, the transverse motor 41 drives the slider 43 to move back and forth along the linear slide rail 42 via the synchronous belt 44. Specifically, synchronous pulleys 45 are installed at both ends of the horizontal support 6, and the two synchronous pulleys 45 are connected by the synchronous belt 44. The slider 43 is directly or indirectly installed on the synchronous belt 44. The transverse motor 41 drives the synchronous pulleys 45 to rotate, so that the synchronous belt 44 drives the slider 43 to move back and forth along the linear slide rail 42. To ensure the stability and safety of the long-stroke transverse movement of the clamping module 2, the transverse module 4 may also include a transverse drag chain 46. The first end of the transverse drag chain 46 can be installed on the connecting plate 5, and the second end of the transverse drag chain 46 can be installed on the horizontal support 6. Optionally, baffles can be set on other parts of the transverse module 4 except for the transverse drag chain 46 to prevent other parts in the mechanism from interfering with the normal operation of the transverse module 4.

[0039] In addition, to achieve the above objectives, this utility model also proposes a silicon core grinding cone device.

[0040] like Figure 8 As shown, the silicon core grinding device of this utility model embodiment includes: a multi-layer material rack 10, a loading and unloading mechanism 20 as described above, and a grinding machine 30. The loading and unloading mechanism 20 is used to transfer the silicon cores on the multi-layer material rack 10 to the silicon core processing station corresponding to the grinding machine 30, or to move the silicon cores from the silicon core processing station to the multi-layer material rack 10.

[0041] The silicon core grinding cone device of this utility model embodiment, since it includes the loading and unloading mechanism as described above, also has the above-mentioned beneficial effects.

[0042] like Figure 9 and 10 As shown, in one embodiment of this utility model, the multi-layer material rack 10 may include a movable material rack 101, a fixed material rack 102, and multiple silicon core placement racks 103 for holding silicon cores. The movable material rack 101 has multiple first storage layers 101a, and the fixed material rack 102 has multiple second storage layers 102a that match the first storage layers 101a. The first storage layers 101a and the second storage layers 102a cooperate to form the movable channel of the silicon core placement rack 103. To facilitate the movement of the movable material rack 101, multiple casters 101b may be provided at the bottom of the movable material rack 101; to fix the fixed material rack 102, ground support feet 102b may be provided at the bottom of the fixed material rack 102 to enhance the stability of the fixed material rack 102, etc. This embodiment does not impose any limitations.

[0043] The loading and unloading mechanism 20 can be used to load and unload silicon cores from the fixed rack 102. After all the silicon cores on the second shelf 102a of the fixed rack 102 have been processed, the silicon core placement rack 103 on that shelf can be moved to the first shelf 101a of the movable rack 101 through the corresponding movable channel. Then, the silicon core placement rack 103 of the silicon core to be processed on the movable rack 101 is moved to the second shelf 102a of the fixed rack 102 for loading, grinding, and unloading, thereby realizing the grinding process of all silicon cores to be processed on the movable rack 101. After all the silicon cores to be processed have been ground, the next batch of silicon cores can be ground by replacing the movable rack 101. The ground silicon cores can be transferred in batches through the movable rack 101, effectively reducing space costs and equipment.

[0044] In one embodiment of this utility model, both the first storage layer 101a and the second storage layer 102a are provided with universal balls 104 suitable for moving the silicon core placement rack 103, which facilitates the smooth movement of the silicon core placement rack 103 between the first storage layer 101a and the second storage layer 102a, saving time and effort.

[0045] To prevent the silicon core placement rack 103 from moving freely on the shelf and affecting the clamping module's ability to clamp or place the silicon core, clamps 105 are provided on the first shelf 101a and / or the second shelf 102a. The clamps 105 are used to fix the silicon core placement rack 103 located on the shelf.

[0046] It is understandable that the clamp 105 has at least two states. When the clamp 105 is in the first state, the silicon core placement rack 103 is fixed to the shelf by the clamp 105 to prevent the silicon core placement rack 103 from moving. When the silicon core placement rack 103 needs to move between the movable shelf 101 and the fixed shelf 102 support, the clamp 105 of the shelf layer where the silicon core placement rack 103 is located can be set to the second state to facilitate the smooth movement of the silicon core placement rack 103.

[0047] like Figure 11 As shown, in one embodiment of this utility model, the grinding machine 30 includes a CNC machine tool 301 and a grinding cone component 302, such as a grinding wheel, disposed on the moving end of the CNC machine tool 301. The moving end is used to drive the grinding cone component 302 to move along three axes, such as the XYZ axis, so as to realize multi-dimensional grinding of silicon cores and improve grinding accuracy.

[0048] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0052] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A loading and unloading mechanism for a silicon core grinding cone device, used for loading and unloading silicon cores on a multi-layer material rack, characterized in that, include: Mounting base (1), on which a clamping module (2) is mounted; The clamping module (2) consists of multiple sets. Each set of the clamping module (2) includes a lifting unit (21) and a clamp (22) for clamping the silicon core. The lifting unit (21) is used to drive the clamp (22) to perform a single-stage lifting. The lifting module (3) is installed on the mounting base (1) and is used to drive the mounting base (1) to drive the clamping module (2) to perform two-stage lifting. A transverse module (4) is connected to the mounting base (1) or the lifting module (3) to drive the mounting base (1) to move back and forth between the multi-layer material rack and the silicon core processing station.

2. The loading and unloading mechanism according to claim 1, characterized in that, Each clamping module (2) has multiple clamps (22), and the multiple clamps (22) are arranged on the same clamping platform (23) along the length direction of the silicon core. The lifting unit (21) is used to drive the clamping platform (23) to perform a first-level lifting.

3. The loading and unloading mechanism according to claim 1 or 2, characterized in that, The clamping module (2) further includes a feeding unit (24). The fixed end of the feeding unit (24) is mounted on the mounting base (1) or the lifting unit (21). The movable end of the feeding unit (24) is connected to the clamp (22). The feeding unit (24) is used to drive the clamp (22) to reciprocate along the length direction of the silicon core.

4. The loading and unloading mechanism according to claim 1, characterized in that, The lifting module (3) is connected to the transverse module (4) via a connecting plate (5). The lifting module (3) may include: a lifting motor (31), a ball screw (32) and a guide rod (33) mounted on the mounting base (1). A ball nut (34) mounted on the connecting plate (5) is sleeved on the ball screw (32). A linear bearing (35) mounted on the connecting plate (5) is sleeved on the guide rod (33). The lifting motor (31) drives the ball screw (32) to move the mounting base (1) up and down along the guide rod (33).

5. The loading and unloading mechanism according to claim 4, characterized in that, The transverse module (4) includes: a transverse motor (41), a linear slide rail (42) and a slider (43) slidably connected to the linear slide rail (42). The transverse motor (41) is used to drive the slider (43) to move back and forth along the linear slide rail (42). The slider (43) is connected to the connecting plate (5).

6. A silicon core grinding cone device, characterized in that, include: The multi-layer material rack (10), the loading and unloading mechanism (20) as described in any one of claims 1-5, and the grinding mill (30) are provided, wherein the loading and unloading mechanism (20) is used to transfer the silicon core on the multi-layer material rack (10) to the silicon core processing station corresponding to the grinding mill (30), or to move the silicon core from the silicon core processing station to the multi-layer material rack (10).

7. The silicon core grinding cone equipment according to claim 6, characterized in that, The multi-layer rack (10) includes a movable rack (101), a fixed rack (102), and multiple silicon core placement racks (103) for holding silicon cores. The movable rack (101) has multiple first storage layers (101a), and the fixed rack (102) has multiple second storage layers (102a) that match the first storage layers (101a). The first storage layers (101a) and the second storage layers (102a) cooperate to form the movable channel of the silicon core placement rack (103).

8. The silicon core grinding cone equipment according to claim 7, characterized in that, Both the first storage layer (101a) and the second storage layer (102a) are provided with omnidirectional balls (104) suitable for moving the silicon core placement rack (103) for holding silicon cores.

9. The silicon core grinding cone equipment according to claim 7, characterized in that, The first shelf (101a) and / or the second shelf (102a) are provided with clamps (105), which are used to fix the silicon core placement rack (103) located on the shelf.

10. The silicon core grinding cone equipment according to claim 6, characterized in that, The grinding machine (30) includes a CNC machine tool (301) and a grinding cone (302) disposed on the moving end of the CNC machine tool (301). The moving end is used to drive the grinding cone (302) to move along the three-axis direction.

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