Polishing device

Abstract

The utility model provides a polishing device to improve polishing efficiency, and the polishing device comprises a loading assembly which comprises a loading part and a rotary driving part, the loading part loads a workpiece, and the rotary driving part is connected with the loading part and drives the loading part to drive the workpiece to rotate; the grinding assembly comprises a bearing piece, a grinding driving piece and a grinding piece, the bearing piece is arranged on one side of the loading piece, the grinding driving piece is arranged on the bearing piece and connected with the grinding piece, and the grinding driving piece is used for driving the grinding piece to abut against the outer side of the workpiece so as to grind the rotating workpiece; the adjusting assembly comprises a guiding piece, a supporting piece and a locking piece, the guiding piece is arranged on one side of the bearing piece and provided with a guiding groove, one end of the supporting piece is connected with the bearing piece, the other end of the supporting piece is in sliding connection with the guiding piece, and one end of the locking piece movably penetrates through the guiding groove and is in threaded connection with the bearing piece; the other end of the locking piece is used for moving close to the guiding piece and abutting against the guiding piece so as to lock the bearing piece or moving away from the guiding piece and loosening the guiding piece so as to adjust the bearing piece.

Description

Technical Field

[0001] This utility model relates to the field of product polishing technology, and in particular to a polishing device. Background Technology

[0002] In modern industrial production, surface treatment of workpieces is one of the key steps to ensure product quality and performance. This is typically done manually using grinding tools, such as bushings and sleeves, and sandpaper. However, manual grinding of large batches of workpieces is labor-intensive and inefficient. Utility Model Content

[0003] In view of the above situation, it is necessary to provide a polishing device to improve polishing efficiency.

[0004] This application provides a polishing device, including:

[0005] A loading assembly includes a loading component and a rotary drive component. The loading component is used to load a workpiece, and the rotary drive component is connected to the loading component and is used to drive the loading component to rotate the workpiece.

[0006] A grinding assembly includes a support, a grinding drive, and a grinding component. The support is disposed on one side of the loading component, and the grinding drive is disposed on the support and connected to the grinding component. The grinding drive is used to drive the grinding component to abut against the outside of the workpiece to grind the rotating workpiece.

[0007] An adjustment assembly includes a guide, a support, and a locking member. The guide is located on one side of the support and has a guide groove. One end of the support is connected to the support, and the other end of the support is slidably connected to the guide. One end of the locking member is movably inserted through the guide groove and threadedly connected to the support. The other end of the locking member is used to move closer to the guide and abut against the guide to lock the support, or to move away from the guide and loosen the guide to adjust the support.

[0008] In actual use, the above-mentioned grinding device first loads the workpiece onto the loading component, then the locking component moves away from the guide component and releases the guide component. The supporting component drives the grinding component and the locking component to move synchronously to adjust the grinding component to a preset height so that the grinding component corresponds to the grinding position of the workpiece. Next, the locking component moves closer to the guide component and abuts against the guide component to lock the supporting component. Finally, the grinding drive component drives the grinding component to abut against the outer side of the workpiece, and the rotation drive component drives the loading component to rotate the workpiece so that the grinding component grinds the rotating workpiece, thereby achieving rapid grinding of the workpiece and improving grinding efficiency.

[0009] In some embodiments, the grinding drive includes a drive body and a pusher body. The drive body is disposed on the support and connected to the pusher body. The grinding component includes a grinding body and a linkage body. The grinding body is rotatably connected to the support and is adjacent to the loading component relative to the drive body. The two ends of the linkage body are rotatably connected to the pusher body and the grinding body, respectively. The linkage body is used to tilt relative to the pusher body under the drive of the drive body, so that the grinding body rotates and abuts against the workpiece.

[0010] In some embodiments, the grinding component includes a connecting portion and a grinding portion. The connecting portion is rotatably disposed on the support and rotatably connected to the linkage body. The grinding portion is detachably connected to the connecting portion and is used to grind the workpiece.

[0011] In some embodiments, the polishing apparatus further includes a liquid supply assembly, the liquid supply assembly comprising:

[0012] A liquid supply component is connected to the support component and has a liquid supply tank and a liquid outlet. The liquid supply tank is used to collect coolant, and the liquid outlet is located on the tank wall of the liquid supply tank and adjacent to the bottom of the liquid supply tank.

[0013] An infusion device, one end of which is connected to the outlet, and the other end of which is fixed to the connecting part and extends to the grinding part. The infusion device is used to deliver the coolant to the grinding part.

[0014] In some embodiments, the liquid supply assembly further includes:

[0015] A pusher, corresponding to the liquid outlet and slidably disposed in the liquid supply tank;

[0016] A connector is disposed on the side of the pusher body opposite to the support member and connected to the pusher body; and

[0017] A first elastic element has two ends connected to the connecting element and the pushing element, respectively. The first elastic element is used to drive the pushing element to move closer to the liquid delivery element so as to push the coolant to the outlet.

[0018] In some embodiments, the liquid supply assembly further includes:

[0019] The second elastic element has its two ends connected to the pusher and the wall of the liquid supply tank, respectively, and is used to drive the pusher to reset.

[0020] In some embodiments, the liquid supply component is further provided with a guide hole, which is formed in the wall of the liquid supply tank and adjacent to the opening of the liquid supply tank. The pusher component includes a guide body and a pusher body connected to each other. The guide body is movably disposed through the guide hole, and the pusher body is slidably disposed in the liquid supply tank and corresponds to the liquid outlet. The cross-sectional area of ​​the pusher body decreases along the direction from the support component to the loading component, and the pusher body moves closer to the liquid infusion component under the guidance of the guide body.

[0021] In some embodiments, the grinding section has a guide groove, which is located on the side of the grinding section away from the loading member. The end of the liquid delivery member away from the liquid supply member extends to the guide groove, and the guide groove is used to guide the coolant to the periphery of the workpiece.

[0022] In some embodiments, the polishing apparatus further includes:

[0023] A substrate, wherein the loading assembly and the adjusting assembly are disposed on the substrate;

[0024] A protective cover is rotatably connected to the substrate and has a mounting groove, which is used to cover the loading component, the polishing component and the adjustment component.

[0025] In some embodiments, the outer side of the protective cover has a protrusion, and the polishing device further includes:

[0026] A limiting member is connected to the substrate and has an arc-shaped groove, which accommodates the protrusion and is used to limit the rotation direction of the protective cover. Attached Figure Description

[0027] Figure 1 A three-dimensional structural diagram of the grinding device and the workpiece adapted thereto, provided in the embodiments of this application.

[0028] Figure 2 for Figure 1 The diagram shows a three-dimensional view of the grinding device and the workpiece it is adapted to.

[0029] Figure 3 for Figure 2 The diagram shows a three-dimensional structure of the liquid supply component and the pushing component in the grinding device.

[0030] Figure 4 for Figure 1 The diagram shows a three-dimensional structure of the polishing device.

[0031] Key component symbols: Grinding device 100, loading assembly 10, loading component 11, rotary drive component 12, grinding assembly 20, support component 21, grinding drive component 22, drive body 221, push body 222, grinding component 23, grinding body 231, connecting part 2311, grinding part 2312, guide groove 2312a, linkage body 232, adjusting assembly 30, guide component 31, guide groove 311, support Support 32, locking 33, liquid supply assembly 40, liquid supply component 41, liquid supply tank 411, liquid outlet 412, guide hole 413, liquid delivery component 42, pushing component 43, guide body 431, pushing body 432, connecting component 44, first elastic component 45, second elastic component 46, base plate 50, protective cover 60, placement groove 61, protrusion 62, limiting component 70, arc groove 71, shielding component 80, workpiece 200. Detailed Implementation

[0032] The embodiments of this application are described in detail below. Examples of these 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 application, and should not be construed as limiting this application.

[0033] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, 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, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0036] Please see Figure 1 This application provides a grinding device 100, which includes a loading assembly 10, a grinding assembly 20, and an adjusting assembly 30. The grinding device 100 is used to grind a workpiece 200. The workpiece 200 can be a cylindrical product, such as a sleeve.

[0037] Please see Figure 1 The loading assembly 10 includes a loading member 11 and a rotary drive member 12. The loading member 11 is used to load the workpiece 200, and the rotary drive member 12 is connected to the loading member 11 and is used to drive the loading member 11 to rotate the workpiece 200. The grinding assembly 20 includes a support member 21, a grinding drive member 22, and a grinding member 23. The support member 21 is located on one side of the loading member 11, and the grinding drive member 22 is located on the support member 21 and connected to the grinding member 23. The grinding drive member 22 is used to drive the grinding member 23 to abut against the outside of the workpiece 200 to grind the rotating workpiece 200. The adjustment assembly 30 includes a guide member 31, a support member 32, and a locking member 33. The guide member 31 is located on one side of the support member 21 and has a guide groove 311. One end of the support member 32 is connected to the support member 21, and the other end of the support member 32 is slidably connected to the guide member 31. One end of the locking member 33 is movably inserted through the guide groove 311 and threadedly connected to the support member 21. The other end of the locking member 33 is used to move closer to the guide member 31 and abut against the guide member 31 to lock the support member 21, or to move away from the guide member 31 and release the guide member 31 to adjust the support member 21. Exemplarily, the loading member 11 can be any loading part, carrier, or similar loading tray capable of loading the workpiece 200, such as a three-jaw chuck, and the rotary drive member 12 can be a motor.

[0038] In actual use, the above-mentioned grinding device 100 first loads the workpiece 200 onto the loading member 11, then the locking member 33 moves away from the guide member 31 and releases the guide member 31. The supporting member 21 drives the grinding member 23 and the locking member 33 to move synchronously to adjust the grinding member 23 to a preset height so that the grinding member 23 corresponds to the grinding position of the workpiece 200. Then, the locking member 33 moves closer to the guide member 31 and abuts against the guide member 31 to lock the supporting member 21. Finally, the grinding drive member 22 drives the grinding member 23 to abut against the outside of the workpiece 200. The rotation drive member 12 drives the loading member 11 to rotate the workpiece 200 so that the grinding member 23 grinds the rotating workpiece 200, thereby achieving rapid grinding of the workpiece 200 and improving grinding efficiency.

[0039] Please see Figure 2In some embodiments, the grinding drive 22 includes a drive body 221 and a pusher body 222. The drive body 221 is disposed on the support 21 and connected to the pusher body 222. The grinding component 23 includes a grinding body 231 and a linkage body 232. The grinding body 231 is rotatably connected to the support 21 and is adjacent to the loading component 11 relative to the drive body 221. The two ends of the linkage body 232 are rotatably connected to the pusher body 222 and the grinding body 231, respectively. The linkage body 232 is used to tilt relative to the pusher body 222 under the drive of the drive body 221, so that the grinding body 231 rotates and abuts against the workpiece 200. Exemplarily, the drive body 221 can be a cylinder.

[0040] Thus, the driving body 221 drives the pushing body 222 to move closer to the workpiece 200 and tilt relative to the pushing body 222, so that the grinding body 231 rotates closer to the workpiece 200 under the drive of the linkage body 232, so as to abut against the outer side of the workpiece 200, making it easier for the grinding body 231 to cooperate with the rotating driving member 12 to grind the workpiece 200.

[0041] Please continue reading. Figure 2 In this embodiment, there are two sets of grinding components 23, spaced apart on the support 21. The linkage 232 of each set of grinding components 23 is rotatably connected to the pushing body 222. The pushing body 222 drives the linkage 232 of the two grinding components 23 to tilt synchronously, thereby causing the grinding bodies 231 of the two grinding components 23 to rotate synchronously closer to the workpiece 200. This allows the two grinding components 23 to clamp the workpiece 200, ensuring that the grinding components 23 remain in contact with the outer side of the workpiece 200 during grinding, preventing a single grinding component 23 from detaching from the workpiece 200 due to the reaction force. Simultaneously, using two grinding bodies 231 increases the contact area between the grinding assembly 20 and the workpiece 200, which is beneficial for improving grinding efficiency. It is understood that in other embodiments, the number of grinding components 23 can be adjusted according to grinding requirements, which will not be elaborated further.

[0042] Please see Figure 2 In some embodiments, the grinding component 23 includes a connecting portion 2311 and a grinding portion 2312. The connecting portion 2311 is rotatably disposed on the support member 21 and rotatably connected to the linkage body 232. The grinding portion 2312 is detachably connected to the connecting portion 2311 and is used to grind the workpiece 200. Exemplarily, the grinding portion 2312 can be any grinding disc, grinding plate, or similar grinding block capable of grinding the workpiece 200, such as a grinding plate with sandpaper.

[0043] Thus, by setting the grinding part 2312 and the connecting part 2311 to be detachably connected, the grinding part 23 forms a split structure, which makes it easy to replace the worn grinding part 2312 in a timely manner, so as to ensure the grinding quality of the grinding part 23.

[0044] Please see Figure 1 and Figure 2 In some embodiments, the polishing apparatus 100 further includes a liquid supply assembly 40, which includes a liquid supply component 41 and a liquid delivery component 42. The liquid supply component 41 is connected to the support component 21 and has a liquid supply tank 411 and a liquid outlet 412. The liquid supply tank 411 is used to collect coolant, and the liquid outlet 412 is located on the tank wall of the liquid supply tank 411 and adjacent to the bottom of the liquid supply tank 411. One end of the liquid delivery component 42 is connected to the liquid outlet 412, and the other end of the liquid delivery component 42 is fixed to the connecting portion 2311 and extends to the polishing portion 2312. The liquid delivery component 42 is used to deliver coolant to the polishing portion 2312.

[0045] In this way, the coolant in the supply tank 411 flows to the delivery component 42 through the outlet 412, so that the delivery component 42 stably delivers the coolant to the grinding part 2312, so that the outer side of the grinding part 2312 and the workpiece 200 are both coated with coolant, avoiding the grinding part 2312 and the workpiece 200 from heating up due to long-term friction, which would cause the workpiece 200 to be damaged due to high temperature, thereby ensuring the grinding quality of the grinding part 2312 and the quality of the workpiece 200.

[0046] It is understood that the fluid delivery component 42 has a control valve, which opens or closes the fluid delivery channel of the fluid delivery component 42 according to the grinding requirements, so that the coolant is delivered to the grinding part 2312 and the workpiece 200 in a timely manner.

[0047] Please see Figure 2 In some embodiments, the liquid supply assembly 40 further includes a pusher 43, a connector 44, and a first elastic member 45. The pusher 43 corresponds to the liquid outlet 412 and is slidably disposed on the liquid supply tank 411. The connector 44 is disposed on the side of the pusher 222 away from the support member 21 and is connected to the pusher 222. The two ends of the first elastic member 45 are respectively connected to the connector 44 and the pusher 43. The first elastic member 45 is used to drive the pusher 43 away from the driveer 221 to push the coolant to the liquid outlet 412. Exemplarily, the first elastic member 45 can be a tension spring.

[0048] Thus, when the pusher 222 is in the initial position, the connector 44 stretches the first elastic member 45 under the drive of the pusher 222. When the pusher 222 moves closer to the liquid supply member 41 under the drive of the drive body 221, the stretched first elastic member 45 provides elastic force and drives the pusher 43 to move closer to the liquid delivery member 42, so as to push the coolant to be quickly delivered to the outlet 412, thereby improving the delivery efficiency of the coolant.

[0049] Please continue reading. Figure 2In some embodiments, the liquid supply assembly 40 further includes a second elastic member 46, the two ends of which are connected to the push member 43 and the wall of the liquid supply tank 411, respectively. The second elastic member 46 is used to drive the push member 43 to reset. Exemplarily, the second elastic member 46 can be a spring.

[0050] Thus, by setting the second elastic element 46 as described above, when the pushing member 43 pushes against the coolant, the pushing member 43 compresses the second elastic element 46 against the wall of the supply tank 411. After the pushing member 43 completes the coolant delivery operation, the compressed second elastic element 46 elastically opens and resets, thereby driving the pushing member 43 to reset to the initial position, so that the pushing member 43 can repeat the operation.

[0051] Please see Figure 2 and Figure 3 In some embodiments, the liquid supply component 41 is further provided with a guide hole 413, which is opened in the wall of the liquid supply tank 411 and is adjacent to the opening of the liquid supply tank 411. The pusher component 43 includes a guide body 431 and a pusher body 432 connected to each other. The guide body 431 is movably inserted through the guide hole 413, and the pusher body 432 is slidably disposed in the liquid supply tank 411 and corresponds to the liquid outlet 412. The cross-sectional area of ​​the pusher body 432 decreases along the direction from the support component 21 to the loading component 11. The pusher body 432 moves closer to the infusion component 42 under the guidance of the guide body 431.

[0052] Thus, by setting the guide body 431 to move through the guide hole 413, the guide body 431, guided by the guide hole 413, drives the pusher 43 to move precisely close to the liquid delivery component 42, so that the pusher 43 stably pushes the coolant in the supply tank 411 to the outlet 412, ensuring the supply stability of the liquid supply component 40. In addition, since the outlet 412 is located near the bottom of the supply tank 411, by setting the cross-sectional area of ​​the pusher 432 to decrease along the direction from the support member 21 to the loading member 11, the pressure value of the coolant in the direction from the support member 21 to the loading member 11 increases accordingly under the push of the pusher 432, thereby increasing the flow rate of the coolant delivered to the outlet 412, ensuring that the coolant flows quickly through the outlet 412 to the liquid delivery component 42.

[0053] Please see Figure 2 In some embodiments, the grinding part 2312 is provided with a guide groove 2312a, which is located on the side of the grinding part 2312 away from the loading member 11. The end of the liquid delivery member 42 away from the liquid supply member 41 extends to the guide groove 2312a. The guide groove 2312a is used to guide the coolant to the periphery of the workpiece 200.

[0054] In this way, the coolant is received and guided to the periphery of the workpiece 200 through the guide channel 2312a, so that the coolant can evenly cover the periphery of the grinding part 2312 and the workpiece 200, ensuring that the coolant can stably reduce the high temperature generated by the grinding part 2312 and the workpiece 200 during grinding, thereby improving the grinding quality.

[0055] Please see Figure 4 In some embodiments, the polishing apparatus 100 further includes a substrate 50 and a protective cover 60. The loading component 10 and the adjusting component 30 are disposed on the substrate 50. The protective cover 60 is rotatably connected to the substrate 50 and is provided with a mounting groove 61. The mounting groove 61 is used to cover the loading component 10, the polishing component 20 and the adjusting component 30.

[0056] Thus, by mounting the loading assembly 10 and the adjusting assembly 30 on the substrate 50, the grinding apparatus 100 can be rationally arranged. Furthermore, by providing a protective cover 60 rotatably connected to the substrate 50, before the grinding apparatus 100 performs a grinding operation, the protective cover 60 rotates towards the loading assembly 10 under external force, allowing the protective cover 60 to cover the loading assembly 10, the grinding assembly 20, and the adjusting assembly 30 through the mounting groove 61. This protects the loading assembly 10, the grinding assembly 20, and the adjusting assembly 30 from external interference, preventing the grinding apparatus 100 from being affected by external factors, improving the grinding stability of the grinding apparatus 100, and simultaneously increasing the safety factor of the grinding apparatus 100.

[0057] Please continue reading. Figure 4 In some embodiments, the outer side of the protective cover 60 has a protrusion 62, and the polishing device 100 also includes a limiting member 70. The limiting member 70 is connected to the substrate 50 and is provided with an arc-shaped groove 71. The arc-shaped groove 71 accommodates the protrusion 62 and is used to limit the rotation direction of the protective cover 60.

[0058] Thus, by accommodating the protruding body 62 through the arc-shaped groove 71, the arc-shaped groove 71 limits the movement trajectory of the protruding body 62, thereby limiting the rotation direction of the protective cover 60 and preventing the protective cover 60 from interfering with other components in the grinding device 100 during the opening or closing process.

[0059] Please see Figure 4 In some embodiments, the polishing apparatus 100 includes a shield 80, the two ends of which are connected to the support 21 and the substrate 50, respectively. For example, the shield 80 may be a bellows cover.

[0060] Since the workpiece 200 will generate debris during grinding, and the coolant will also splash around with the rotating workpiece 200, the shielding member 80 mentioned above is provided to shield the splashed debris and coolant, preventing the debris and coolant from contaminating the working environment.

[0061] The working process of the aforementioned polishing device 100 is roughly as follows:

[0062] First, the protective cover 60 rotates away from the loading component 11 under the action of external force, the loading component 11 loads the workpiece 200, and the locking component 33 moves away from the guide component 31 and loosens the guide component 31;

[0063] Then, under the action of external force, the support member 21 drives the grinding member 23 and the locking member 33 to move synchronously, so as to adjust the grinding member 23 to a preset height, so that the grinding member 23 corresponds to the grinding position of the workpiece 200.

[0064] Next, the locking member 33 moves closer to the guide member 31 and abuts against the guide member 31 under the action of external force to lock the support member 21, and the protective cover 60 rotates closer to the loading member 11 under the action of external force.

[0065] Finally, the driving body 221 drives the pushing body 222 to move closer to the liquid supply component 41. The linkage body 232 tilts relative to the pushing body 222 under the push of the pushing body 222 to drive the grinding component 23 to rotate closer to the workpiece 200, so that the grinding component 23 abuts against the outside of the workpiece 200. At the same time, the pushing component 43 moves closer to the liquid delivery component 42 under the drive of the first elastic component 45 to push the coolant in the liquid supply tank 411 to flow through the liquid outlet 412 to the liquid delivery component 42, so that the liquid delivery component 42 delivers coolant to the grinding component 23. The rotation driving component 12 drives the loading component 11 to rotate the workpiece 200, so that the grinding component 23 grinds the rotating workpiece 200, realizing rapid grinding of the workpiece 200 and improving grinding efficiency.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A polishing device, characterized in that, include: A loading assembly includes a loading component and a rotary drive component. The loading component is used to load a workpiece, and the rotary drive component is connected to the loading component and is used to drive the loading component to rotate the workpiece. A grinding assembly includes a support, a grinding drive, and a grinding component. The support is disposed on one side of the loading component, and the grinding drive is disposed on the support and connected to the grinding component. The grinding drive is used to drive the grinding component to abut against the outside of the workpiece to grind the rotating workpiece. An adjustment assembly includes a guide, a support, and a locking member. The guide is located on one side of the support and has a guide groove. One end of the support is connected to the support, and the other end of the support is slidably connected to the guide. One end of the locking member is movably inserted through the guide groove and threadedly connected to the support. The other end of the locking member is used to move closer to the guide and abut against the guide to lock the support, or to move away from the guide and loosen the guide to adjust the support.

2. The polishing apparatus as described in claim 1, characterized in that, The grinding drive includes a drive body and a pusher body. The drive body is disposed on the support and connected to the pusher body. The grinding component includes a grinding body and a linkage body. The grinding body is rotatably connected to the support and is adjacent to the loading component relative to the drive body. The two ends of the linkage body are rotatably connected to the pusher body and the grinding body, respectively. The linkage body is used to tilt relative to the pusher body under the drive of the drive body, so that the grinding body rotates and abuts against the workpiece.

3. The polishing apparatus as described in claim 2, characterized in that, The grinding component includes a connecting part and a grinding part. The connecting part is rotatably disposed on the support and rotatably connected to the linkage body. The grinding part is detachably connected to the connecting part and is used to grind the workpiece.

4. The polishing apparatus as described in claim 3, characterized in that, The polishing device further includes a liquid supply assembly, which comprises: A liquid supply component is connected to the support component and has a liquid supply tank and a liquid outlet. The liquid supply tank is used to collect coolant, and the liquid outlet is located on the tank wall of the liquid supply tank and adjacent to the bottom of the liquid supply tank. An infusion device, one end of which is connected to the outlet, and the other end of which is fixed to the connecting part and extends to the grinding part. The infusion device is used to deliver the coolant to the grinding part.

5. The polishing apparatus as described in claim 4, characterized in that, The liquid supply assembly also includes: A pusher, corresponding to the liquid outlet and slidably disposed in the liquid supply tank; A connector is disposed on the side of the pusher body opposite to the support member and connected to the pusher body; and A first elastic element has two ends connected to the connecting element and the pushing element, respectively. The first elastic element is used to drive the pushing element to move closer to the liquid delivery element so as to push the coolant to the outlet.

6. The polishing apparatus as described in claim 5, characterized in that, The liquid supply assembly also includes: The second elastic element has its two ends connected to the pusher and the wall of the liquid supply tank, respectively, and is used to drive the pusher to reset.

7. The polishing apparatus as described in claim 5, characterized in that, The liquid supply component is also provided with a guide hole, which is opened in the wall of the liquid supply tank and adjacent to the opening of the liquid supply tank. The pusher component includes a guide body and a pusher body connected to each other. The guide body is movably inserted through the guide hole, and the pusher body is slidably disposed in the liquid supply tank and corresponds to the liquid outlet. The cross-sectional area of ​​the pusher body decreases along the direction from the support component to the loading component. The pusher body moves closer to the liquid infusion component under the guidance of the guide body.

8. The polishing apparatus as described in claim 4, characterized in that, The grinding section is provided with a flow guide groove, which is located on the side of the grinding section away from the loading component. The end of the liquid delivery component away from the liquid supply component extends to the flow guide groove, and the flow guide groove is used to guide the coolant to the periphery of the workpiece.

9. The polishing apparatus as described in claim 1, characterized in that, The polishing device also includes: A substrate, wherein the loading assembly and the adjusting assembly are disposed on the substrate; A protective cover is rotatably connected to the substrate and has a mounting groove, which is used to cover the loading component, the polishing component and the adjustment component.

10. The polishing apparatus as described in claim 9, characterized in that, The outer side of the protective cover has a protrusion, and the grinding device further includes: A limiting member is connected to the substrate and has an arc-shaped groove, which accommodates the protrusion and is used to limit the rotation direction of the protective cover.

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