A grinding and polishing device for 3D printed parts production

Abstract

This invention discloses a polishing device for 3D printed parts production, comprising a base, multiple support springs fixedly connected to the upper side of the base, a support frame for carrying abrasive materials fixedly connected to the upper end of the support springs, a vibrator fixedly connected to the lower center of the support frame, and a central column fixedly connected to the lower side of the inner wall of the support frame. This invention, by setting an isolation ring inside the support frame, divides the interior of the support frame into independent processing cavities, achieving regional division of the internal space of the support frame. Different materials, types of abrasives, and workpieces can be placed in separate areas, enabling simultaneous isolated polishing of different types of 3D printed parts such as plastics and metals. This avoids surface scratches and abrasive contamination caused by mixing different materials during polishing, adapting to diverse material processing needs and offering greater processing versatility.

Description

Technical Field

[0001] This invention relates to the field of 3D printed parts polishing technology, specifically a polishing device for 3D printed parts production. Background Technology

[0002] 3D printed parts are widely used in precision machinery, cultural and creative models, and industrial components due to their convenient molding and high customization capabilities. However, the surfaces of 3D printed parts often suffer from defects such as layer lines, burrs, and unevenness, requiring post-processing with polishing equipment. Currently, most vibratory polishing devices on the market have a simple structure, with the supporting cavity often being a single, open structure. This results in a mixture of polishing and grinding materials within the cavity, making it impossible to isolate and store them separately.

[0003] Currently, 3D printed parts come in a wide variety of materials, including plastics and metals. Different materials have different requirements for grinding media and polishing intensity. Plastic parts are suitable for gentle polishing with soft abrasives to avoid surface scratches, while metal parts require hard abrasives to remove oxide layers and burrs. Traditional grinding devices cannot achieve separate storage of abrasives, and mixing abrasives can easily cause wear and scratches on plastic parts and substandard polishing of metal parts, resulting in poor processing adaptability. Therefore, it is necessary to design a grinding and polishing device for the production of 3D printed parts that is highly practical, has isolated partitions, and is adaptable to different materials. Summary of the Invention

[0004] The purpose of this invention is to provide a grinding and polishing device for the production of 3D printed parts, so as to solve the problems mentioned in the background art.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a grinding and polishing device for 3D printed parts production, including a base, a plurality of support springs fixedly connected to the upper side of the base, a bearing frame for bearing grinding and polishing material fixedly connected to the upper end of the plurality of support springs, a vibrator fixedly connected to the center of the lower end of the bearing frame, and a central column fixedly connected to the lower side of the inner wall of the bearing frame. The upper end of the central column is provided with a plug-in groove, the inner wall of the plug-in groove is inserted with a plug-in block, the two sides of the plug-in block are fixedly connected with isolation rings, the two sides of the inner wall of the plug-in groove are provided with locking grooves, and the upper side of the plug-in block is provided with a locking component that is inserted into the locking groove. The upper side of the base is provided with a sealing mechanism for sealing the opening at the upper end of the support frame.

[0006] According to the above technical solution, the locking assembly includes an operating groove formed on the upper end of the plug-in block. A guide rod is fixedly connected to the inner wall of the operating groove. Two symmetrically distributed tightening blocks are slidably connected to the guide rod. Locking plugs that are plugged into the two locking grooves are fixedly connected to opposite sides of the two tightening blocks. Two pressure springs for elastically pushing the tightening blocks are fixedly connected to the guide rod. The two pressure springs are respectively located on the sides of the two tightening blocks that are close to each other.

[0007] According to the above technical solution, the sealing mechanism includes a protective cover disposed on the upper side of the base, an observation port is provided on the upper side of the protective cover, a transparent plate is fixedly embedded in the inner wall of the observation port, and a reinforcing component for assisting in locking and positioning the tightening block is disposed in the center of the transparent plate.

[0008] According to the above technical solution, the reinforcement component includes an assembly port opened at the center of the transparent plate, a reinforcement plate is fixedly connected to the inner wall of the assembly port, and two reinforcement grooves are opened on the lower side of the reinforcement plate to be inserted and limited by the tightening block.

[0009] According to the above technical solution, a sealing ring is fixedly connected to the lower side of the isolation ring, and the sealing ring is sealed and abuts against the lower side of the inner wall of the bearing frame.

[0010] According to the above technical solution, an anti-slip pad is fixedly connected to the lower side of the transparent plate, and the lower side of the anti-slip pad is sealed and abutted against the upper side of the isolation ring.

[0011] According to the above technical solution, both sides of the bearing frame are provided with connecting nut seats, and the upper side of the protective cover is provided with an assembly ear corresponding to the connecting nut seat. The assembly ear is provided with a hand-tightening screw that is threadedly connected to the connecting nut seat.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are: This invention, by setting an isolation ring inside the carrier frame, divides the interior of the carrier frame into independent processing cavities, thereby achieving regional division of the internal space of the carrier frame. Different materials, different types of abrasives, and workpieces can be placed in separate areas. It can simultaneously perform isolated polishing of different types of 3D printed parts such as plastic and metal materials, avoiding the problems of surface scratches and abrasive contamination caused by mixed polishing of different materials. It is suitable for diverse material processing needs and has stronger processing versatility.

[0013] In this invention, the isolation ring of the device is connected to the central column by a plug-in block and is equipped with a locking component to achieve quick assembly and disassembly. The operation is simple and requires no special tools. When it is necessary to process 3D printed parts that are large in size and long in dimensions, the isolation ring can be quickly disassembled, the internal partition structure can be eliminated, and the carrier frame can form a complete large-capacity processing cavity, increasing the internal placement space, adapting to the grinding and polishing of large workpieces, and broadening the processing application range of the device. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the load-bearing frame of the present invention; Figure 3 This is the invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a three-dimensional cross-sectional structural diagram of the sealing mechanism of the present invention; Figure 5 This is a schematic diagram of the three-dimensional connection structure of the plug block of the present invention; Figure 6 This is a front view schematic diagram of the present invention; In the diagram: 1. Base; 2. Support spring; 3. Bearing frame; 4. Vibrator; 5. Central column; 6. Insertion slot; 8. Insertion block; 9. Isolation ring; 10. Locking slot; 11. Locking assembly; 111. Operating slot; 112. Guide rod; 113. Tightening block; 114. Locking insert block; 115. Top pressure spring; 13. Sealing mechanism; 131. Protective cover; 132. Observation port; 133. Transparent plate; 134. Reinforcing assembly; 1341. Assembly port; 1342. Reinforcing plate; 1343. Reinforcing slot; 14. Sealing ring; 15. Anti-slip pad; 16. Connecting nut seat; 17. Assembly ear; 18. Hand-tightening screw. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figure 1-6The present invention provides a technical solution: a grinding and polishing device for the production of 3D printed parts, including a base 1, a plurality of support springs 2 fixedly connected to the upper side of the base 1, a bearing frame 3 for bearing grinding and polishing material fixedly connected to the upper end of the plurality of support springs 2, a vibrator 4 fixedly connected to the lower center of the bearing frame 3, the vibrator 4 adopts an eccentric vibration motor, and its outer shell is vertically fixedly connected to the center of the lower end face of the bearing frame 3 through a flange, which is a common existing technical means. A central column 5 is fixedly connected to the lower side of the inner wall of the bearing frame 3. The upper end of the central column 5 is provided with a plug groove 6, the inner wall of the plug groove 6 is plugged with a plug block 8, the two sides of the plug block 8 are fixedly connected with isolation rings 9, the two sides of the inner wall of the plug groove 6 are provided with locking grooves 10, and the upper side of the plug block 8 is provided with a locking component 11 that is plugged into the locking groove 10. A sealing mechanism 13 is provided on the upper side of the base 1 for sealing the opening at the upper end of the support frame 3.

[0017] Please see Figure 3 The locking assembly 11 includes an operating groove 111 formed on the upper end of the insertion block 8. A guide rod 112 is fixedly connected to the inner wall of the operating groove 111. A convex plate is integrally formed in the middle of the guide rod 112. Two sets of top pressure springs 115 are respectively fixed on both sides of the convex plate in the middle of the guide rod. Two symmetrically distributed tightening blocks 113 are slidably connected to the guide rod 112. Locking inserts 114 that are inserted into and cooperate with the two locking grooves 10 are fixedly connected to the opposite side of the two tightening blocks 113. Two top pressure springs 115 for elastically pushing the tightening blocks 113 are fixedly connected to the guide rod 112. The two top pressure springs 115 are respectively located on the two tightening blocks. On the side of 113 that are close to each other, during operation, the guide rod 112 fixes two sets of top pressure springs 115 by the central convex plate. Under normal conditions, the top pressure springs 115 elastically push the two side tightening blocks 113, causing the locking inserts 114 on the outside of the tightening blocks 113 to pop out and insert into the locking groove 10, thereby realizing the locking and fixing of the plug-in block 8 and the central column 5. When the two side tightening blocks 113 are pressed, the tightening blocks 113 slide towards each other along the guide rod 112 and compress the top pressure springs 115, driving the locking inserts 114 to exit the locking groove 10, thereby releasing the limit and completing the quick disassembly of the plug-in block 8. The overall structure realizes the functions of convenient disassembly and assembly and automatic locking of the plug-in block 8.

[0018] Please see Figure 4The sealing mechanism 13 includes a protective cover 131 disposed on the upper side of the base 1. The lower side of the protective cover 131 is sealed to the upper side of the support frame 3. An observation port 132 is provided on the upper side of the protective cover 131. A transparent plate 133 is fixedly embedded in the inner wall of the observation port 132. A reinforcing component 134 for auxiliary locking and positioning of the tightening block 113 is provided in the center of the transparent plate 133. The reinforcing component 134 includes an assembly port 1341 opened in the center of the transparent plate 133. A reinforcing plate 1342 is fixedly connected to the inner wall of the assembly port 1341. Two reinforcing grooves 1343 are provided on the lower side of the reinforcing plate 1342, which are inserted and limited to the tightening block 113. The lower side is designed to gradually decrease in size, making it easy to engage with the tightening block 113. The protective cover 131 covers the upper end of the support frame 3 to achieve cavity sealing. The transparent plate 133 allows real-time observation of the internal grinding and polishing status through the observation port 132. During the closing process, the reinforcing groove 1343 of the reinforcing plate 1342 below the transparent plate 133 aligns with and engages with the tightening block 113, forming a vertical limiting constraint on the tightening block 113. This prevents the tightening block from shifting, retracting, or loosening under vibration conditions. The auxiliary locking component 11 maintains the locked state, preventing the plug block 8 from loosening during vibration operation. Combined with the sealing structure, this improves the overall sealing performance and structural stability of the device, ensuring that the internal abrasive does not overflow and the structure is not easily loosened during vibration grinding.

[0019] Please see Figure 2 and Figure 4 A sealing ring 14 is fixedly connected to the lower side of the isolation ring 9. The sealing ring 14 is sealed and abuts against the lower side of the inner wall of the support frame 3. An anti-slip pad 15 is fixedly connected to the lower side of the transparent plate 133. The lower side of the anti-slip pad 15 is sealed and abuts against the upper side of the isolation ring 9. The sealing ring 14 on the lower side is tightly sealed against the bottom of the inner wall of the support frame 3, thus achieving a sealed isolation of the lower area of ​​the isolation ring 9. At the same time, the anti-slip pad 15 fixed at the bottom of the transparent plate 133 is pressed tightly against the upper end face of the isolation ring 9, forming an upper sealing barrier. The two work together at the upper and lower ends of the isolation ring 9 to form a double sealing structure, effectively preventing the abrasive from flowing and mixing in different zones during the grinding and polishing operation. Both the sealing ring 14 and the anti-slip pad 15 are made of wear-resistant elastic rubber material, generally polyurethane or silicone, which has excellent elastic deformation ability, wear resistance and vibration resistance, and is suitable for long-term vibration grinding conditions, improving sealing durability and preventing sealing failure.

[0020] Please see Figure 1 and Figure 4Both sides of the support frame 3 are provided with connecting nut seats 16. The upper side of the protective cover 131 is provided with an assembly ear 17 corresponding to the connecting nut seat 16. The assembly ear 17 is provided with a hand-tightening screw 18 that is threadedly connected to the connecting nut seat 16. The hand-tightening screw 18 is a screw with a hand-tightening disc. The contact part between the hand-tightening disc and the assembly ear 17 is made of flexible material to improve anti-slip performance. By rotating the hand-tightening screw 18 to lock it with the connecting nut seat 16, the protective cover 131 can be quickly pressed and fixed on the support frame 3. The disassembly and assembly can be completed without the aid of tools. At the same time, the threaded locking can ensure that the protective cover 131 is tightly closed, improve the overall structural clamping force, ensure that the protective cover 131 will not loosen or shift during the vibration polishing process, further stabilize the internal sealing structure, and prevent abrasive splashing and leakage.

[0021] The implementation principle of this application is as follows: This device relies on the base 1, the support spring 2 and the vibrator 4 to form the main structure of vibration grinding. With the help of the vibrator 4, the bearing frame 3 vibrates at high frequency, causing the grinding and polishing material in the frame to roll back and forth, completing the grinding and polishing operation of the surface texture, burrs and unevenness of the 3D printed parts. In the actual grinding process, the cavity is partitioned and isolated by the central column 5, the insertion groove 6 and the insertion block 8 with the isolation ring 9. With the locking component 11, the insertion block 8 can be quickly disassembled and fixedly positioned. The top pressure spring 115 pushes the tightening block 113, so that the locking insertion block 114 is locked into the locking groove 10 to lock. The material storage area can be flexibly divided, and abrasives of different hardness and different specifications can be stored separately to prevent the mixing of abrasives. The protective cover 131 of the sealing mechanism 13, together with the hand-tightening screw 18, achieves a tight seal of the bearing frame 3. The transparent plate 133 facilitates real-time observation of the internal processing status. The reinforcing component 134 below it can further limit and lock the two tightening blocks 113, thereby improving the overall structural stability. At the same time, the sealing ring 14 and the anti-slip pad 15 form a multi-layer sealing barrier, effectively preventing the abrasive materials in different zones from moving and mixing with each other.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A grinding and polishing device for 3D printed parts production, comprising a base (1), characterized in that: The upper side of the base (1) is fixedly connected with a plurality of support springs (2), and the upper end of the plurality of support springs (2) is fixedly connected with a bearing frame (3) for bearing the grinding and polishing material. The lower center of the bearing frame (3) is fixedly connected with a vibrator (4), and the lower side of the inner wall of the bearing frame (3) is fixedly connected with a central column (5). The upper end of the central column (5) is provided with a plug groove (6), the inner wall of the plug groove (6) is provided with a plug block (8), the two sides of the plug block (8) are fixedly connected with isolation rings (9), the two sides of the inner wall of the plug groove (6) are provided with locking grooves (10), and the upper side of the plug block (8) is provided with a locking component (11) that is plugged into the locking groove (10). The upper side of the base (1) is provided with a sealing mechanism (13) for sealing the opening at the upper end of the support frame (3).

2. The grinding and polishing device for 3D printed parts production according to claim 1, characterized in that: The locking assembly (11) includes an operating groove (111) opened on the upper end of the plug-in block (8). A guide rod (112) is fixedly connected to the inner wall of the operating groove (111). Two symmetrically distributed tightening blocks (113) are slidably connected to the guide rod (112). Locking plugs (114) that are plugged into the two locking grooves (10) are fixedly connected to the opposite side of the two tightening blocks (113). Two pressure springs (115) for elastically pushing the tightening blocks (113) are fixedly connected to the guide rod (112). The two pressure springs (115) are respectively located on the side of the two tightening blocks (113) that are close to each other.

3. The grinding and polishing device for 3D printed parts production according to claim 2, characterized in that: The sealing mechanism (13) includes a protective cover (131) disposed on the upper side of the base (1). An observation port (132) is provided on the upper side of the protective cover (131). A transparent plate (133) is fixedly embedded in the inner wall of the observation port (132). A reinforcing component (134) for assisting in locking and positioning the tightening block (113) is provided in the center of the transparent plate (133).

4. The grinding and polishing device for 3D printed parts production according to claim 3, characterized in that: The reinforcement component (134) includes an assembly port (1341) opened at the center of the transparent plate (133). A reinforcement plate (1342) is fixedly connected to the inner wall of the assembly port (1341). Two reinforcement grooves (1343) are opened on the lower side of the reinforcement plate (1342) to be inserted and limited in cooperation with the tightening block (113).

5. The grinding and polishing device for 3D printed parts production according to claim 1, characterized in that: A sealing ring (14) is fixedly connected to the lower side of the isolation ring (9), and the sealing ring (14) is sealed and abutted against the lower side of the inner wall of the bearing frame (3).

6. The grinding and polishing device for 3D printed parts production according to claim 3, characterized in that: An anti-slip pad (15) is fixedly connected to the lower side of the transparent plate (133), and the lower side of the anti-slip pad (15) is sealed and abutted against the upper side of the isolation ring (9).

7. A grinding and polishing device for 3D printed parts production according to claim 3, characterized in that: Both sides of the bearing frame (3) are provided with connecting nut seats (16), and the upper side of the protective cover (131) is provided with an assembly ear (17) corresponding to the connecting nut seat (16). The assembly ear (17) is provided with a hand-tightening screw (18) that is threadedly connected to the connecting nut seat (16).

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