Polishing apparatus

By designing a combination of load-bearing and polishing components, uniform force and precise pressure adjustment are achieved on the workpiece during the polishing process, solving the problems of difficulty in ensuring thickness accuracy and wobbling in existing devices, and improving polishing accuracy and effect.

CN224347631UActive Publication Date: 2026-06-12HONGFUJIN PRECISION ELECTRONICS ZHENGZHOU

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HONGFUJIN PRECISION ELECTRONICS ZHENGZHOU
Filing Date
2025-06-04
Publication Date
2026-06-12

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    Figure CN224347631U_ABST
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Abstract

The present application provides a polishing device. An embodiment of the present application provides a polishing device for polishing a workpiece, the polishing device comprising a carrier assembly configured to carry the workpiece, a polishing assembly configured to rotate about a defined axis to polish the workpiece, and a repair assembly located at one side of the polishing assembly along a first direction to repair a polishing surface of the polishing assembly.
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Description

Technical Field

[0001] This application relates to the field of product processing technology, and in particular to a polishing apparatus. Background Technology

[0002] Some products require grinding and polishing. However, some grinding and polishing machines use a large rotating grinding disc mounted under the machine. The product is adsorbed onto a carrier plate, which is then placed upside down on the large grinding disc. A cylinder presses down to tighten the carrier plate, and a motor rotates, causing the cylinder and the product carrier plate to rotate for grinding and polishing. This method requires the product to be upside down, necessitating the use of rubber pads on the bottom of the carrier plate to hold the product in place. Since these rubber pads vary in size, it's difficult to guarantee the thickness accuracy of the product during grinding. Furthermore, the product may wobble slightly under the pressure of the rubber pads, potentially causing edge collapse and resulting in defective products. Utility Model Content

[0003] To address the issue of difficulty in ensuring product precision during grinding, this application provides a polishing apparatus with improved precision.

[0004] This application provides a polishing apparatus for polishing a workpiece. The polishing apparatus includes a support component, a polishing component, and a repair component. The support component is configured to support the workpiece. The polishing component is configured to rotate about a defined axis to polish the workpiece. The polishing component is movable relative to the support component along a first direction to adjust the pressure applied by the polishing component to the workpiece. The repair component is located on one side of the polishing component along the first direction to repair the polished surface of the polishing component.

[0005] Understandably, the workpiece is supported by the bearing assembly, eliminating the need to invert the product or place rubber pads on the carrier plate. This ensures the workpiece thickness is maintained during grinding and polishing, and the workpiece is subjected to uniform force, resulting in higher precision. Simultaneously, the polishing assembly can adjust the pressure applied to the workpiece for better polishing results, and the repair assembly can repair the polished surface of the polishing assembly to ensure optimal polishing performance.

[0006] In one embodiment, the polishing assembly includes a polishing element and a connector, the connector being movable relative to the polishing element along the first direction and applying pressure to the polishing element.

[0007] In one embodiment, the polishing assembly further includes an elastic element, one end of which is elastically connected to the connector and the other end of which is elastically connected to the polishing component, for applying an elastic force to the polishing component.

[0008] In one embodiment, the polishing assembly further includes a base, the connector is connected to the base, the base has a receiving groove for receiving the elastic member, one end of the elastic member away from the connector is elastically connected to the groove wall of the receiving groove, the connector moves relative to the base along a first direction to compress the elastic member, the elastic member can apply an elastic force to the base, and along the first direction, the polishing component is connected to the side of the base away from the connector.

[0009] In one embodiment, the polishing assembly further includes a limiting member, a first limiting hole is provided on the base, and a second limiting hole is provided on the connector. The limiting member can pass through the first limiting hole and the second limiting hole and is restricted to displacement in the first direction, thereby restricting the movement of the connector relative to the base in the first direction.

[0010] In one embodiment, the polishing assembly further includes a positioning member, the connector has a connecting hole, the positioning member can pass through the connecting hole and be connected to the connector through the connecting hole, the base has a guide hole, the positioning member can pass through the guide hole and move in the guide hole along the first direction.

[0011] In one embodiment, the repair assembly includes a support, a fixing member, and a repair member, the repair member being movable relative to the support in the first direction, and the fixing member fixing the repair member relative to the support.

[0012] In one embodiment, the support member has an adjustment hole, the repair member can pass through the adjustment hole and move within the adjustment hole along the first direction, along the second direction and the third direction, the repair member abuts against the wall of the adjustment hole, and the first direction, the second direction and the third direction intersect each other.

[0013] In one embodiment, the polishing apparatus further includes a first driving component that can drive the carrier component and the repair component to move along the second direction and the third direction.

[0014] In one embodiment, the carrier component includes a carrier disk and a second drive component. The carrier disk has a contour groove, and the workpiece can be accommodated in the contour groove. The second drive component is configured to drive the carrier disk to rotate. Attached Figure Description

[0015] Figure 1 This is a perspective view of a polishing apparatus provided in an embodiment of this application.

[0016] Figure 2 This is a perspective view of a polishing apparatus located inside a machine base, according to an embodiment of this application.

[0017] Figure 3 This is a perspective view of the polishing component of a polishing apparatus provided in an embodiment of this application.

[0018] Figure 4 This is a cross-sectional schematic diagram of the polishing component of a polishing apparatus provided in an embodiment of this application.

[0019] Figure 5 A perspective view of the repair component of a polishing apparatus provided in an embodiment of this application.

[0020] Figure 6 A perspective view of the support component of a polishing apparatus provided in an embodiment of this application.

[0021] Explanation of key component symbols:

[0022] 100. Polishing device; 1. Bearing component; 11. Carrier plate; 110. Contouring groove; 12. Second drive component; 2. Polishing component; 21. Polished part; 210. Polished surface; 22. Connector; 221. Second limiting hole; 222. Connecting hole; 23. Elastic component; 24. Base; 241. Receiving groove; 242. First limiting hole; 243. Guide hole; 25. Limiting component; 26. Positioning component; 3. Repair component; 31. Support component; 311. Column; 312. First fixing block; 313. Second fixing block; 3131. Adjustment hole; 32. Fixing component; 33. Repair component; 4. Platform; 200. Workpiece; 300. Machine base; L. Axis; Z. First direction; Y. Second direction; X. Third direction.

[0023] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0024] The following description will be given with reference to the accompanying drawings for a more complete description of the present application. The drawings illustrate exemplary embodiments of the present application. However, the present application may be implemented in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. Similar reference numerals denote the same or similar components. The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to limit the present application. As used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context clearly indicates otherwise. Furthermore, when used herein, “comprising” and / or “including” and / or “having,” integers, steps, operations, components, and / or components, but without excluding the presence or addition of one or more other features, regions, integers, steps, operations, components, and / or groups thereof. Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, unless explicitly defined herein, terms such as those defined in a general dictionary should be interpreted as having the same meaning as they have in the relevant technology and in the content of this application, and should not be interpreted as having an idealized or overly formal meaning.

[0025] like Figures 1 to 3 As shown, this application embodiment provides a polishing apparatus 100 for polishing a workpiece 200. The polishing apparatus 100 includes a support component 1, a polishing component 2, and a repair component 3. The support component 1 is configured to support the workpiece 200. The polishing component 2 is configured to rotate about a defined axis L to polish the workpiece 200.

[0026] For ease of reading, this application introduces a first direction Z, a second direction Y, and a third direction X to describe the embodiments of this application. The first direction Z, the second direction Y, and the third direction X can be three non-parallel straight lines in space; further, the first direction Z, the second direction Y, and the third direction X can be three mutually perpendicular directions in a three-dimensional coordinate system (a three-dimensional Cartesian coordinate system). In subsequent embodiments, the first direction Z is described as the Z-axis direction of the three-dimensional coordinate system, the second direction Y is the Y-axis direction of the three-dimensional coordinate system, and the third direction X is the X-axis direction of the three-dimensional coordinate system.

[0027] The polishing assembly 2 can move relative to the bearing assembly 1 along the first direction Z to adjust the pressure applied by the polishing assembly 2 to the workpiece 200. The repair assembly 3 is located on one side of the polishing assembly 2 along the first direction Z to repair the polished surface 210 of the polishing assembly 2.

[0028] In this embodiment, the workpiece 200 is a product requiring grinding and polishing, specifically a casing part of an electronic device, or other components, without further limitations. The polishing device 100 of this application can be placed inside the machine base 300, specifically an NC machine base (Numerical Control Machine), to control the polishing device 100. It can control the polishing component 2 to rotate around a defined axis L, and control the polishing component 2 to move along the first direction Z, the second direction Y, and the third direction X, so that the polishing component 2 can effectively polish the workpiece 200 according to the actual situation. The workpiece 200 is placed on the bearing component 1 so that it can be pressed and polished by the polishing component 2. The polishing component 2 is symmetrical about the defined axis L in the third direction X, so that the force applied to the workpiece 200 when the polishing component 2 rotates around the defined axis L is more uniform, resulting in a better polishing effect on the workpiece 200. The surface of the polishing component 2 closest to the workpiece 200 in the first direction Z is the polishing surface 210, which subsequently contacts the workpiece 200 during the polishing process. The repair component 3 is located below the polishing component 2 so that the polishing surface 210 can be repaired, ensuring that the polishing component 2 polishes the workpiece 200 with good precision.

[0029] Understandably, the workpiece 200 is supported by the bearing assembly 1, eliminating the need to invert the product or place a rubber pad on the carrier plate 11. This ensures the thickness of the workpiece 200 during grinding and polishing, and also ensures uniform force distribution and higher precision. Simultaneously, the polishing assembly 2 can adjust the pressure applied to the workpiece 200 for better polishing results, and the repair assembly 3 can repair the polished surface 210 of the polishing assembly 2 to guarantee good polishing performance.

[0030] Further integration Figure 4 As shown, in one embodiment, the polishing assembly 2 includes a polishing element 21 and a connector 22. The connector 22 can move relative to the polishing element 21 along a first direction Z and apply pressure to the polishing element 21.

[0031] In this embodiment, two types of polishing components 2 can be provided: one for fine machining of the workpiece 200 and the other for rough machining. The use of the two polishing components 2 can be switched by the machine tool 300. The two polishing components 2 have the same structure, but the selection of polishing parts 21 is slightly different to perform different processing. For rough machining, polishing parts 21 can be abrasive grinding discs, and for fine machining, polishing parts 21 can be fine sandpaper. Different polishing parts 21 can be selected for different processing according to the actual processing situation. The polishing component 2 for fine machining is smaller in size than the polishing component 2 for rough machining. In use, after the polishing parts 21 are held against the workpiece 200, the machine tool 300 can also control the connecting part 22 to continue moving along the first direction Z, so that the connecting part 22 moves relative to the polishing parts 21 along the first direction Z, thereby changing the pressure applied to the polishing parts 21. The polishing surface 210 is the surface of the polishing parts 21 that can hold against the workpiece 200 to polish the workpiece 200. The connector 22 can be a fixed tool holder that is suitable for clamping by the machine tool 300, or other components that can connect the machine tool 300 and the polishing part 21. No further restrictions are imposed here.

[0032] It is understandable that by selecting different polishing parts 21, the polishing assembly 2 can perform roughing and finishing on the workpiece 200 respectively, and the connecting part 22 can move relative to the polishing part 21 along the first direction Z to adjust the pressure applied to the polishing part 21, so that the polishing process can be adjusted according to the actual situation.

[0033] In one embodiment, the polishing assembly 2 further includes an elastic member 23, one end of which is elastically connected to the connector 22 and the other end is elastically connected to the polishing member 21, for applying an elastic force to the polishing member 21.

[0034] In this embodiment, the elastic element 23 can be a spring, or other components that can generate elastic force due to elastic deformation, without further restrictions. When the connecting member 22 moves relative to the polished part 21 along the first direction Z, the elastic element 23 is compressed, thereby generating an elastic force applied to the polished part 21.

[0035] It is understandable that by setting the elastic element 23, the force applied by the connecting element 22 to the polishing element 21 can be changed when the connecting element 22 moves along the first direction Z, thereby adjusting the force applied by the polishing element 21 to the workpiece 200, and the polishing process can be adjusted according to the actual situation.

[0036] In one embodiment, the polishing assembly 2 further includes a base 24, a connector 22 connected to the base 24, the base 24 having a receiving groove 241 for receiving an elastic member 23, the end of the elastic member 23 away from the connector 22 being elastically connected to the groove wall of the receiving groove 241, the connector 22 moving relative to the base 24 in a first direction Z to compress the elastic member 23, the elastic member 23 being able to apply an elastic force to the base 24, and the polishing component 21 connected to the side of the base 24 away from the connector 22 in the first direction Z.

[0037] In this embodiment, the connector 22 and the polishing member 21 are connected to both sides of the base 24 in the first direction Z, so that when the connector 22 moves in the first direction Z, it can compress the elastic member 23 and cause the elastic member 23 to apply an elastic force to the base 24. The elastic force is transmitted to the polishing member 21 connected to the base 24 and finally to the workpiece 200.

[0038] It is understandable that the base 24 facilitates the connection between the polishing part 21 and the connector 22, and the elastic element 23 can be accommodated by the base 24, ensuring the stability of the polishing part 21, connector 22 and elastic element 23 during use, resulting in good polishing effect.

[0039] In one embodiment, the polishing assembly 2 further includes a limiting member 25. A first limiting hole 242 is provided on the base 24, and a second limiting hole 221 is provided on the connector 22. The limiting member 25 can pass through the first limiting hole 242 and the second limiting hole 221 and is restricted to displacement in the first direction Z, thereby restricting the movement of the connector 22 relative to the base 24 in the first direction Z.

[0040] In this embodiment, since the polishing component 21 is connected to the connector 22 via the elastic member 23, if the repair assembly 3 needs to repair the polished surface 210, the polishing component 21 may move relative to the connector 22 along the first direction Z during the repair process, resulting in poor repair effect. Therefore, the polishing assembly 2 can also be provided with a limiting member 25. The limiting member 25 can be a pin, or other components that can pass through the first limiting hole 242 and the second limiting hole 221 to limit the connector 22. No further restrictions are imposed here. The projection shape of the first limiting hole 242 and the second limiting hole 221 on a plane parallel to the first direction Z and the second direction Y can be set to correspond to the shape of the limiting member 25, so that when the limiting member 25 passes through the first limiting hole 242 and the second limiting hole 221, the limiting member 25 abuts against the hole wall of the first limiting hole 242 and the second limiting hole 221 in the first direction Z, so as to be restricted to displacement in the first direction Z, thereby restricting the movement of the connector 22 relative to the base 24 in the first direction Z. When polishing workpiece 200, the limiting member 25 is not used. At this time, the limiting member 25 does not pass through the first limiting hole 242 and the second limiting hole 221. If it is necessary to repair the polished surface 210, the limiting member 25 is used. The limiting member 25 is passed through the first limiting hole 242 and the second limiting hole 221 to fix the base 24 and the connector 22 relative to each other.

[0041] It is understandable that the setting of the limiting member 25 and the first limiting hole 242 and the second limiting hole 221 enables the connecting member 22 to be fixed relative to the base 24 in the first direction Z, thereby ensuring that the repair assembly 3 can perform a stable repair process on the polished surface 210 and achieve good repair results.

[0042] In one embodiment, the polishing assembly 2 further includes a positioning member 26, and the connector 22 has a connecting hole 222. The positioning member 26 can pass through the connecting hole 222 and be connected to the connector 22 through the connecting hole 222. The base 24 has a guide hole 243, and the positioning member 26 can pass through the guide hole 243 and move in the first direction Z within the guide hole 243.

[0043] In this embodiment, the positioning member 26 can be a pin. The positioning member 26 and the limiting member 25 can be arranged perpendicularly. The projection shape of the guide hole 243 on a plane parallel to the first direction Z and the third direction X is an elongated oval, so that the positioning member 26 can move within the guide hole 243 along the first direction Z. When the positioning member 26 passes through the connecting hole 222, the positioning member 26 abuts against the hole wall of the connecting hole 222 in the first direction Z, so that the positioning member 26 can follow the connecting member 22 and move relative to the base 24 along the first direction Z.

[0044] It is understandable that the positioning element 26 can be used during the polishing process. It does not restrict the movement of the connector 22 relative to the base 24 in the first direction Z, and can play a certain guiding role in the movement of the connector 22 relative to the base 24 in the first direction Z.

[0045] Further integration Figure 5 As shown, in one embodiment, the repair component 3 includes a support 31, a fixing member 32, and a repair member 33. The repair member 33 can move relative to the support 31 in a first direction Z, and the fixing member 32 can fix the repair member 33 relative to the support 31.

[0046] In this embodiment, the repair component 33 can be a repair knife, which includes a handle and a diamond blade. The support component 31 may include a support column 311, a first fixing block 312, and a second fixing block 313. The first fixing block 312 is used to connect to the machine base 300. The two ends of the support column 311 along the first direction Z are respectively connected to the first fixing block 312 and the second fixing block 313, so that the second fixing block 313 has a certain height. The repair component 33 is connected to the second fixing block 313, and it can move relative to the second fixing block 313 along the first direction Z to adjust its position, so that the polished surface 210 can be repaired well according to the actual situation. The fixing component 32 can be a fastening screw, so that the repair component 33 is fixed relative to the support component 31 after the position is adjusted, which facilitates the subsequent repair process.

[0047] In one embodiment, the support member 31 has an adjustment hole 3131. The repair member 33 can pass through the adjustment hole 3131 and move within the adjustment hole 3131 along the first direction Z. Along the second direction Y and the third direction X, the repair member 33 abuts against the wall of the adjustment hole 3131.

[0048] In this embodiment, an adjustment hole 3131 is formed on the second fixing block 313. The repair member 33 can pass through the adjustment hole 3131 and move along the first direction Z to adjust its position in the first direction Z. The repair member 33 abuts against the wall of the adjustment hole 3131 in the second direction Y and the third direction X to limit its displacement in the second direction Y and the third direction X. Two adjustment holes 3131 can be formed, located at both ends of the second fixing block 313 in the third direction X. The repair member 33 can pass through one of the adjustment holes 3131 according to the actual situation. Along the third direction X, a threaded hole is formed on one side of the second limiting block. The fixing member 32 can be connected to the threaded hole by threads and abut against the repair member 33 through the threaded hole, so that the repair member 33 is fixed relative to the second fixing block 313.

[0049] It is understandable that by adjusting the hole 3131, the position of the repair part 33 in the first direction Z can be adjusted, which can be adjusted according to the actual situation to ensure good repair.

[0050] In one embodiment, the polishing apparatus 100 further includes a first driving component that can drive the carrier component 1 and the repair component 3 to move along a second direction Y and a third direction X.

[0051] In this embodiment, the supporting component 1 and the repair component 3 can be connected to a platform 4. The first drive component drives the platform 4 to move along the second direction Y and the third direction X. The first drive component is part of the machine tool 300 and may include a linear reciprocating mechanism and a motor. The linear reciprocating mechanism may specifically be a cylinder slide or a lead screw slide, etc. The first drive component only needs to be able to drive the supporting component 1 and the repair component 3 to move along the second direction Y and the third direction X, without too many restrictions. The first fixing block 312 can be connected to the platform 4 to enable the repair component 3 to move along the second direction Y and the third direction X.

[0052] It is understandable that the first driving component drives the carrier component 1 and the repair component 3 to move along the second direction Y and the third direction X, so as to adjust the position of the carrier component 1 and the repair component 3, so that the polishing and repair process can be adjusted according to the actual situation, and the polishing and repair effect can be better.

[0053] Further integration Figure 6 As shown, in one embodiment, the carrier component 1 includes a carrier plate 11 and a second drive component 12. The carrier plate 11 has a contour groove 110, and the workpiece 200 can be accommodated in the contour groove 110. The second drive component 12 is configured to drive the carrier plate 11 to rotate.

[0054] In this embodiment, the second drive component 12 can be a four-axis motor, or other components, as long as they can drive the carrier plate 11 to rotate; no further restrictions are imposed. The rotation direction of the carrier plate 11 is opposite to the rotation direction of the polishing component 2 to ensure proper polishing. The shape of the contour groove 110 can be tailored to the shape of the workpiece 200 so that when the workpiece 200 is located within the contour groove 110, its displacement in the second direction Y and the third direction X is restricted.

[0055] Understandably, the second drive assembly 12 drives the carrier disk 11 to rotate, so that both the polishing assembly 2 and the carrier assembly 1 rotate during the polishing process, further improving the polishing effect. At the same time, the contour groove 110 ensures the stability of the workpiece 200 during processing, improving the processing effect.

[0056] The specific embodiments of this application have been described above with reference to the accompanying drawings. However, those skilled in the art will understand that various changes and substitutions can be made to the specific embodiments of this application without departing from the spirit and scope of this application. All such changes and substitutions fall within the scope defined by this application.

Claims

1. A polishing apparatus for polishing workpieces, characterized in that, The polishing apparatus includes: A support assembly configured to support the workpiece; A polishing assembly configured to rotate about a defined axis to polish the workpiece, the polishing assembly being movable relative to the support assembly in a first direction to adjust the pressure applied by the polishing assembly to the workpiece; A repair component, located on one side of the polishing component along the first direction, is used to repair the polished surface of the polishing component.

2. The polishing apparatus as described in claim 1, characterized in that, The polishing assembly includes a polishing component and a connecting component, the connecting component being movable relative to the polishing component along the first direction and applying pressure to the polishing component.

3. The polishing apparatus as described in claim 2, characterized in that, The polishing assembly also includes an elastic element, one end of which is elastically connected to the connector and the other end of which is elastically connected to the polishing component, for applying an elastic force to the polishing component.

4. The polishing apparatus as described in claim 3, characterized in that, The polishing assembly further includes a base, and the connector is connected to the base. The base has a receiving groove for accommodating the elastic member. The end of the elastic member away from the connector is elastically connected to the groove wall of the receiving groove. The connector moves relative to the base along a first direction to compress the elastic member. The elastic member can apply an elastic force to the base. Along the first direction, the polishing component is connected to the side of the base away from the connector.

5. The polishing apparatus as described in claim 4, characterized in that, The polishing assembly further includes a limiting member. The base has a first limiting hole, and the connector has a second limiting hole. The limiting member can pass through the first limiting hole and the second limiting hole and is restricted to displacement in the first direction, thereby restricting the movement of the connector relative to the base in the first direction.

6. The polishing apparatus as described in claim 4, characterized in that, The polishing assembly further includes a positioning element. The connector has a connecting hole, through which the positioning element can pass and connect to the connector. The base has a guide hole, through which the positioning element can pass and move along the first direction within the guide hole.

7. The polishing apparatus as claimed in claim 1, characterized in that, The repair assembly includes a support, a fixing member, and a repair member. The repair member is movable relative to the support in the first direction, and the fixing member fixes the repair member relative to the support.

8. The polishing apparatus as described in claim 7, characterized in that, The support member has an adjustment hole, and the repair member can pass through the adjustment hole and move within the adjustment hole along the first direction. Along the second direction and the third direction, the repair member abuts against the wall of the adjustment hole. The first direction, the second direction and the third direction intersect each other.

9. The polishing apparatus as described in claim 8, characterized in that, The polishing apparatus further includes a first driving component, which can drive the bearing component and the repair component to move along the second direction and the third direction.

10. The polishing apparatus as claimed in claim 1, characterized in that, The carrier component includes a carrier plate and a second drive component. The carrier plate has a contour groove, and the workpiece can be accommodated in the contour groove. The second drive component is configured to drive the carrier plate to rotate.