Polishing and grinding head

Abstract

The utility model discloses a polishing and grinding head which comprises a main shaft, an elastic assembly, a grinding head assembly and a locking piece, the main shaft is sleeved with the elastic assembly, and the main shaft is detachably sleeved with the grinding head assembly; the locking piece is rotatably connected with the main shaft and located at the end, away from the elastic assembly, of the grinding head assembly, the locking piece can rotate between a locking position and an unlocking position, when the locking piece is located at the locking position, the length direction of the locking piece is perpendicular to the length direction of the main shaft, and when the locking piece is located at the unlocking position, the length direction of the locking piece is perpendicular to the length direction of the main shaft. When the locking piece is located at the unlocking position, the unlocking position is that the length direction of the locking piece is parallel to the length direction of the main shaft. The purpose of rapidly replacing the abrasive paper outside the machine and rapidly replacing the grinding head assembly inside the machine can be achieved, so that rapid dismounting and rapid mounting of the grinding head assembly are achieved, the working efficiency is improved, the abrasive paper is replaced outside the machine, and the danger coefficient is reduced.

Description

Technical Field

[0001] This application relates to the field of polishing and grinding technology, specifically to a polishing and grinding head. Background Technology

[0002] Polishing refers to a processing method that uses mechanical, chemical, or electrochemical processes to reduce the surface roughness of a workpiece, thereby obtaining a bright and smooth surface. For irregularly shaped and complex metal parts, polishing can be performed using a circular grinding head. However, because the sandpaper in the grinding head wears out quickly, it needs to be replaced frequently, resulting in a high replacement frequency. Furthermore, the time-consuming sandpaper replacement process in related technologies leads to low polishing efficiency. Utility Model Content

[0003] In order to effectively overcome the problems existing in the prior art, the main objective of this application is to provide a polishing head with high replacement efficiency.

[0004] To achieve the above objectives, this application specifically adopts the following technical solution:

[0005] This application provides a polishing head, the polishing head comprising:

[0006] spindle;

[0007] An elastic component, which is sleeved on the main shaft;

[0008] A grinding head assembly, which is detachably fitted onto the spindle;

[0009] A locking element is rotatably connected to the spindle and located at the end of the grinding head assembly away from the elastic component. The locking element is rotatable between a locked position and an unlocked position. When the locking element is in the locked position, the length direction of the locking element is perpendicular to the length direction of the spindle. When the locking element is in the unlocked position, the length direction of the locking element is parallel to the length direction of the spindle.

[0010] In some embodiments, the polishing head further includes a limiting member connected to the spindle and protruding from the surface of the spindle. The grinding head assembly is provided with a limiting groove, which is correspondingly provided with the limiting member.

[0011] In some embodiments, the spindle has a mounting groove, the limiting member passes through the mounting groove, and both sides of the limiting member protrude from the mounting groove.

[0012] In some embodiments, the polishing head further includes a first pin, the spindle has a first through hole, the limiting member has a second through hole, and the first pin passes through the first through hole and the second through hole.

[0013] In some embodiments, the spindle includes a limiting protrusion, one end of the elastic component abuts against the limiting protrusion, and the other end of the elastic component abuts against the limiting member.

[0014] In some embodiments, the elastic component includes a spring and a limiting plate, the spring and the limiting plate being respectively sleeved on the main shaft, one end of the spring abutting against the limiting protrusion, the other end of the spring abutting against the limiting plate, and the limiting plate abutting against the limiting member.

[0015] In some embodiments, the polishing head further includes a second pin, the end of the spindle is provided with a receiving groove, the locking member is disposed in the receiving groove and rotatably connected to the spindle through the second pin, so that the locking member can rotate between the locked position and the unlocked position.

[0016] In some embodiments, the grinding head assembly includes a body, a Velcro strap, sandpaper, and a pressure block. The body is detachably fitted onto the spindle, the Velcro strap covers the outer surface of the body, the sandpaper covers the outer surface of the Velcro strap, and the pressure block is connected to the body for limiting the position of the sandpaper.

[0017] In some embodiments, the grinding head assembly further includes a locking member, the main body is provided with a locking groove, one end of the pressure block is provided with a locking portion, the other end of the pressure block is provided with a third through hole, the locking portion engages with the locking groove, and the locking member passes through the third through hole and is connected to the main body.

[0018] In some embodiments, the locking element is threadedly connected to the body.

[0019] The polishing head of this application includes a spindle, an elastic component, a grinding head assembly, and a locking component. The elastic component is sleeved on the spindle, and the grinding head assembly is detachably sleeved on the spindle. The locking component is rotatably connected to the spindle and located at the end of the grinding head assembly away from the elastic component. The locking component can rotate between a locked position and an unlocked position. Therefore, when replacing the grinding head assembly, the locking component can be rotated to the unlocked position, the old grinding head assembly can be removed along the length of the spindle, and the new grinding head assembly can be installed along the length of the spindle. Finally, the locking component can be rotated to the locked position. Compared with existing technologies, this application achieves rapid external sandpaper replacement and rapid internal grinding head assembly replacement, enabling rapid disassembly and installation of the grinding head assembly, improving work efficiency, and reducing the risk factor by replacing sandpaper externally. Attached Figure Description

[0020] Figure 1 This is a perspective view of the polishing head provided in an embodiment of this application.

[0021] Figure 2 This is a cross-sectional view of the polishing head provided in an embodiment of this application.

[0022] Figure 3 This is an exploded perspective view of the polishing head provided in the embodiments of this application.

[0023] Figure 4 for Figure 3 A three-dimensional view of the central axis.

[0024] Figure 5 for Figure 3 A three-dimensional view of the main body.

[0025] Figure 6 for Figure 3 A 3D view of the medium-pressure block.

[0026] Attached image labels:

[0027] 1. Spindle; 11. Mounting groove; 12. Receiving groove; 13. Limiting protrusion; 14. First through hole; 15. First connecting hole; 2. Elastic component; 21. Spring; 22. Limiting plate; 3. Grinding head assembly; 31. Main body; 310. Mounting hole; 311. Limiting groove; 312. Engaging groove; 32. Velcro; 33. Sandpaper; 34. Pressure block; 341. Engaging part; 342. Third through hole; 35. Locking component; 4. Locking component; 41. Second connecting hole; 5. Limiting component; 51. Second through hole; 6. First pin; 7. Second pin; 100. Polishing head. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0029] In the description of this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] In the description of this specification, it should be understood that the directional terms such as "upper" and "lower" used in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should also be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0031] In related technologies, when changing the polishing head, the equipment needs to be stopped, the pressure block removed, the old sandpaper peeled off, the new sandpaper attached to the Velcro, secured with the pressure block, and then the equipment restarted for polishing. However, in these technologies, removing and installing a single piece of sandpaper takes approximately 300 seconds, which is time-consuming. Furthermore, changing sandpaper inside the machine carries certain risks, and the quality of sandpaper adhesion cannot be guaranteed. This results in approximately 5% of the workpieces exhibiting defects such as horizontal lines.

[0032] Reference Figure 1 and Figure 2 As shown, an embodiment of this application discloses a polishing head 100, which includes a spindle 1, an elastic component 2, a grinding head assembly 3, a locking component 4, and a limiting component 5. The spindle 1 is used to connect a six-axis robot or a five-axis polishing device, and the grinding head assembly 3 is detachably sleeved on the spindle 1. The limiting component 5 is connected to the spindle 1 and protrudes from the surface of the spindle 1. The limiting component 5 can cooperate with the limiting groove of the grinding head assembly 3 to limit the grinding head assembly 3 in the circumferential direction of the spindle 1 and guide the grinding head assembly 3 during installation. The elastic component 2 is sleeved on the spindle 1, with one end abutting against the spindle 1 and the other end abutting against the limiting component 5, so that the elastic component 2 can provide an elastic force along the axial direction of the spindle 1 to the grinding head assembly 3, enabling the grinding head assembly 3 to move along the axial direction of the spindle 1. The locking member 4 is rotatably connected to the spindle 1 and located at the end of the grinding head assembly 3 away from the elastic component 2. The locking member 4 can rotate between a locked position and an unlocked position to limit the grinding head assembly 3 and prevent it from disengaging from the spindle 1. Specifically, when the locking member is in the locked position, its length direction is perpendicular to the length direction of the spindle 1; when the locking member is in the unlocked position, its length direction is parallel to the length direction of the spindle 1.

[0033] When it is necessary to replace the grinding head assembly 3, the locking piece 4 can be rotated to the unlocked position, and then the old grinding head assembly 3 can be taken out along the length of the spindle 1. Then, the new grinding head assembly 3 can be installed into the spindle 1 along the length of the spindle 1. After that, the locking piece 4 can be rotated to the locked position. The old grinding head assembly that has been removed can be used to replace the sandpaper outside the equipment.

[0034] This application separates the grinding head assembly 3 and the spindle 1, that is, the grinding head assembly 3 and the spindle 1 are detachably connected, so as to achieve the purpose of quickly changing sandpaper outside the machine and quickly changing the grinding head assembly 3 inside the machine, thereby realizing the quick disassembly and quick installation of the grinding head assembly 3, improving work efficiency, and thus achieving the purpose of saving time, reducing manpower, and improving efficiency.

[0035] Reference Figure 3 As shown, the spindle 1 includes a limiting protrusion 13, and the elastic component 2 includes a spring 21 and a limiting plate 22. The spring 21 and the limiting plate 22 are respectively sleeved on the spindle 1. One end of the spring 21 abuts against the limiting protrusion 13, and the other end of the spring 21 abuts against the limiting plate 22. The limiting plate 22 abuts against the limiting member 5, and the limiting plate 22 is used to limit the spring 21. In this embodiment, the spring provides elastic force along the axial direction of the spindle 1 to the grinding head assembly 3. During the disassembly or installation of the grinding head assembly, the compression of the spring provides clearance space for the rotation of the locking member.

[0036] Simultaneously refer to Figure 3 and Figure 4 As shown, the polishing head 100 also includes a first pin 6 and a second pin 7, with multiple first pins 6. The spindle 1 has a mounting groove 11, a first through hole 14, a receiving groove 12, and a first connecting hole 15. The mounting groove 11 extends through both sides of the spindle 1, and multiple first through holes 14 are provided, each communicating with the mounting groove 11. The receiving groove 12 is located at the end of the spindle 1 and extends through both sides and the top of the spindle 1. The first connecting hole 15 communicates with the receiving groove 12. The limiting member 5 has a second through hole 51, the number and position of which correspond to the number and position of the first through holes 14. The locking member 4 has a second connecting hole 41. During assembly, the limiting member 5 can be inserted into the mounting groove 11, and the first pin 6 can be inserted into the first through hole 14 and the second through hole 51, so that the limiting member 5 is fixed to the spindle 1, and the two sides of the limiting member 5 protrude from the two sides of the mounting groove 11 respectively; the locking member 4 is set in the receiving groove 12, and the second pin 7 is inserted into the first connecting hole 15 and the second connecting hole 41, so that the locking member 4 is rotatably connected to the spindle 1 through the second pin 7, and the locking member 4 can rotate between the locked position and the unlocked position. In this embodiment, the limiting member 5 and the locking member 4 are connected to the spindle 1 by pins. The connection method is stable and simple, and the parts of the limiting member 5 protruding from the two sides of the mounting groove 11 can be used to limit the grinding head assembly 3 in the circumferential direction of the spindle 1, preventing the grinding head assembly 3 from rotating around the spindle 1, improving the stability of the installation of the grinding head assembly 3, and thus avoiding the grinding head assembly 3 from rotating around the spindle 1 during operation and affecting normal operation.

[0037] Continue to refer to Figure 3As shown, the grinding head assembly 3 includes a main body 31, hook and loop fasteners 32, sandpaper 33, a pressure block 34, and a locking member 35. The main body 31 is detachably fitted onto the spindle 1. The hook and loop fasteners 32 cover the outer surface of the main body 31, and the sandpaper 33 covers the outer surface of the hook and loop fasteners 32. The pressure block 34 is connected to the main body 31 and is used to press and fix the sandpaper 33. The locking member 35 is used to fix the pressure block 34 to the main body 31. In this embodiment, by providing the hook and loop fasteners 32, the sandpaper 33 can be adhered to the main body 31 by grinding the hook and loop fasteners 32. By providing the pressure block 34, the sandpaper can be firmly adhered to the hook and loop fasteners 32.

[0038] Reference Figure 5 and Figure 6 As shown, the main body 31 is provided with a mounting hole 310, a limiting groove 311, and a locking groove 312. The limiting groove 311 is provided on the inner wall of the mounting hole 310 and extends along the length of the spindle 1 through both ends of the main body 31. The limiting groove 311 and the portion of the limiting member 5 protruding from the spindle 1 can cooperate to limit the movement of the main body 31 around the spindle 1. The locking groove 312 is provided at the end of the main body 31. One end of the pressure block 34 is provided with a locking part 341, and the other end of the pressure block 34 is provided with a third through hole 342. When assembling the grinding head assembly 3, the Velcro 32 can be wrapped around the outer surface of the main body 31, the sandpaper 33 can be wrapped around the outer surface of the Velcro 32, the locking part 341 of the pressure block 34 can be engaged in the locking groove 312, and the locking member 35 can be passed through the third through hole 342 and connected to the main body 31.

[0039] In some embodiments, the main body 31 is provided with a threaded hole, and the locking member 35 is threadedly connected to the main body 31.

[0040] In this application, when replacing the grinding head, the equipment can be stopped, the grinding head assembly 3 can be pressed against the elastic component 2, and then the locking component 4 can be rotated to the unlocked position. The entire old grinding head assembly 3 can then be removed along the axial direction of the spindle 1. The new grinding head assembly 3 can then be fitted onto the spindle 1 through the mounting hole 310, ensuring the protruding part of the limiting component 5 is within the limiting groove 311. The elastic component 2 can then be pressed against, and the locking component 4 can be rotated to the locked position. The removed old grinding head assembly 3 can be replaced with sandpaper 33 outside the equipment. Compared to related technologies, this application requires only 25 seconds to replace the grinding head assembly 3 and 35 seconds to replace the sandpaper 33 outside the machine. This is faster, saves time and effort, eliminates the need for prolonged operation inside the machine, reduces the risk factor, and ensures high-quality adhesion of the sandpaper 33, resulting in no horizontal lines or defects on the workpiece surface.

[0041] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A polishing head, characterized in that, include: spindle; An elastic component, which is sleeved on the main shaft; A grinding head assembly, which is detachably fitted onto the spindle; and A locking element is rotatably connected to the spindle and located at the end of the grinding head assembly away from the elastic component. The locking element is rotatable between a locked position and an unlocked position. When the locking element is in the locked position, the length direction of the locking element is perpendicular to the length direction of the spindle. When the locking element is in the unlocked position, the length direction of the locking element is parallel to the length direction of the spindle.

2. The polishing head according to claim 1, characterized in that, The polishing head also includes a limiting member, which is connected to the spindle and protrudes from the surface of the spindle. The grinding head assembly is provided with a limiting groove, which is correspondingly set with the limiting member.

3. The polishing head according to claim 2, characterized in that, The spindle has a mounting groove, the limiting member passes through the mounting groove, and both sides of the limiting member protrude from the mounting groove.

4. The polishing head according to claim 3, characterized in that, The polishing head also includes a first pin, the spindle has a first through hole, the limiting member has a second through hole, and the first pin passes through the first through hole and the second through hole.

5. The polishing head according to claim 2, characterized in that, The spindle includes a limiting protrusion, one end of the elastic component abuts against the limiting protrusion, and the other end of the elastic component abuts against the limiting member.

6. The polishing head according to claim 5, characterized in that, The elastic component includes a spring and a limiting plate, which are respectively sleeved on the main shaft. One end of the spring abuts against the limiting protrusion, and the other end of the spring abuts against the limiting plate. The limiting plate abuts against the limiting member.

7. The polishing head according to claim 1, characterized in that, The polishing head also includes a second pin, and the end of the spindle is provided with a receiving groove. The locking member is disposed in the receiving groove and is rotatably connected to the spindle through the second pin, so that the locking member can rotate between the locked position and the unlocked position.

8. The polishing head according to any one of claims 1 to 7, characterized in that, The grinding head assembly includes a body, hook and loop fasteners, sandpaper, and a pressure block. The body is detachably fitted onto the spindle. The hook and loop fasteners cover the outer surface of the body. The sandpaper covers the outer surface of the hook and loop fasteners. The pressure block is connected to the body and is used to limit the position of the sandpaper.

9. The polishing head according to claim 8, characterized in that, The grinding head assembly also includes a locking member. The main body is provided with a locking groove, one end of the pressure block is provided with a locking part, and the other end of the pressure block is provided with a third through hole. The locking part engages with the locking groove, and the locking member passes through the third through hole and is connected to the main body.

10. The polishing head according to claim 9, characterized in that, The locking element is threadedly connected to the main body.

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