Surface grinding device for 3D printing product

Abstract

The utility model discloses a surface grinding device for 3D printed products, and relates to the field of 3D printed product machining, the surface grinding device comprises a device body, a cover plate is fixedly connected to the side wall of the device body, a water tank is formed in the bottom of the inner wall of the device body, an adjusting mechanism is arranged in the device body, and a clamping mechanism is arranged in the device body. According to the surface grinding device for the 3D printing product, through the structural arrangement, the screw rod can be driven to rotate by rotating the rotary knob, the screw rod drives the sliding block to vertically move so as to drive the grinding head to horizontally move, then the rotating column is rotated to drive the gear to rotate, and the gear drives the rack to vertically move upwards; the grinding head is driven to move vertically through the rotating shaft, so that the grinding head can be matched with different product grinding requirements conveniently, the flexibility is more excellent, the applicability of the device is improved, and the situation that due to improper height or position adjustment, the surface is not uniform or local excessive abrasion is caused is avoided.

Description

Technical Field

[0001] The present application relates to the field of 3D printed product processing, and in particular to a surface polishing device for 3D printed products. Background Art

[0002] The surface polishing device for 3D printed products is mainly used to improve the surface quality of printed parts, making them smoother and flatter. Since 3D printed parts often have layered textures or other surface defects, the polishing device can help remove these defects and improve the appearance and feel of the product.

[0003] For example, a surface grinding and repair device for 3D printed products disclosed in Publication No. 202223578099.2 includes a frame arranged on both sides, a driving mechanism for driving a workpiece to rotate is assembled and connected between the frames, the driving mechanism includes a driving roller for driving the workpiece to rotate, and the driving roller is assembled and connected to a driving motor; the driving mechanism also includes a supporting roller rotatably connected between the two sides of the frame, and the supporting roller is located above the driving roller; the frames are respectively assembled and connected with a workpiece rolling limiting mechanism; the workpiece rolling limiting mechanism includes a supporting ring seat respectively assembled and connected to the frame, and the outer side wall of the supporting ring seat is limited by a plurality of supporting balls that can rotate freely relative to the supporting ring seat; the workpiece rolling limiting mechanism also includes a pushing cylinder respectively assembled and connected to the frame. However, the following deficiencies still exist in actual use:

[0004] When the surface grinding device of the 3D printing product of the above patent is actually used, the workpiece is ground by a roller. The surface precision of the single roller grinding is too single, which makes it impossible to accurately control the grinding depth of each stage, and it is impossible to complete the replacement of rough grinding and fine polishing steps. Moreover, the position of the grinding roller is fixed, which is inconvenient when the grinding position of the product surface needs to be adjusted. This may cause insufficient or excessive grinding of some areas, affecting the surface smoothness. It is also impossible to adjust the spatial position of the grinding head according to the size, shape or position of different workpieces, which limits the flexibility and applicability of the process, thereby making the device insufficiently flexible. Utility Model Content

[0005] In order to improve the problems of inconsistent polishing uniformity and insufficient device flexibility, the present application provides a surface polishing device for 3D printed products.

[0006] The surface polishing device for a 3D printed product provided in this application adopts the following technical solution:

[0007] A surface polishing device for 3D printed products, comprising a device body, a cover plate fixedly connected to a side wall of the device body, a water tank provided at the bottom of an inner wall of the device body, an adjustment mechanism provided inside the device body, and a fixing mechanism provided inside the device body;

[0008] The adjusting mechanism includes a limit plate fixedly connected to the bottom of the inner wall of the device body, the bottom of the inner wall of the device body is fixedly connected to a fixing plate fixedly connected to the side wall of the limit plate, the side wall of the fixing plate is movably penetrated by a screw rod, the screw rod movably penetrates the side wall of the fixing plate and is fixedly connected to a knob on one side extending to the outside, the outer wall of the screw rod is threadedly connected to a sliding block movably penetrating the side wall of the limit plate, and the sliding block movably penetrates the limit plate and is fixedly connected to a fixed horizontal plate at one end extending to the outside;

[0009] The fixing mechanism includes a connecting piece, a placement plate is fixedly connected to the side wall of the connecting piece, a motor is fixedly connected to the top of the placement plate, a protective shell is fixedly connected to the outer wall of the connecting piece, and the output shaft of the motor movably passes through the side wall of the connecting piece and extends to the outside and is fixedly connected to a rotating piece.

[0010] By adopting the above technical solution, the grinding position can be adjusted through the adjustment mechanism.

[0011] Preferably, the adjustment mechanism further comprises a fixed column fixedly connected to the top of the sliding block, a rack is slidably connected inside the fixed column, a connecting plate is fixedly connected to the side wall of the fixed column, and a rotating column is movably passed through the side wall of the connecting plate.

[0012] By adopting the above technical solution, the fixed column can be driven by the sliding block to move horizontally.

[0013] Preferably, a gear is fixedly passed through the outer wall of the rotating column, a ratchet is fixedly passed through the outer wall of the rotating column, and a fixing piece is fixedly connected to the top of the connecting plate.

[0014] By adopting the above technical solution, the rotating column can drive the gear and the ratchet to rotate at the same time.

[0015] Preferably, a cylinder is movably passed through the side wall of the fixing member, and a pawl engaged with the outer wall of the ratchet is fixedly passed through the outer wall of the cylinder.

[0016] By adopting the above technical solution, the pawl can limit the ratchet wheel.

[0017] Preferably, a vertical groove is formed through the side of the fixing column away from the connecting plate, and a connecting block fixedly connected to the side of the rack away from the connecting plate is slidably connected to the inner wall of the vertical groove.

[0018] By adopting the above technical solution, the vertical groove can limit the connection block.

[0019] Preferably, the side of the connecting block away from the rack is fixedly connected to a limiting slide, the top of the rack is fixedly connected to a horizontal plate that fits in with the top of the fixed column, and the top of the horizontal plate is fixedly connected to a square block.

[0020] By adopting the above technical solution, the rack can drive the horizontal plate to move vertically.

[0021] Preferably, a connecting bar is fixedly connected to one side of the square block, an end of the connecting bar away from the square block is fixedly connected to a corner block, and a vertical plate is fixedly connected to the bottom of the corner block.

[0022] By adopting the above technical solution, the square blocks are fixedly connected to the vertical plates.

[0023] Preferably, the fastening mechanism further comprises a fixing ring sleeved on the outer wall of the rotating member, the top of the connecting member is fixedly connected to the bottom of the vertical plate, and the outer wall of the fixing ring is threaded with a screw which is threaded with the outer wall of the rotating member.

[0024] By adopting the above technical solution, the fixing ring is fixed by screws.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The screw is rotated by rotating the knob, which drives the sliding block to move vertically, thereby driving the grinding head to move horizontally. The rotating column is then rotated to drive the gear to rotate, and the gear drives the rack to move vertically upward, thereby driving the grinding head to move vertically. This makes it easier for the grinding head to meet the grinding requirements of different products, making it more flexible and improving the applicability of the device. It avoids uneven surfaces or local excessive wear caused by inappropriate height or position adjustment, and allows the grinding head to be set at a designated appropriate position, making manual adjustment more convenient for users.

[0027] 2. The sandpaper is fixed by means of the fixed ring and the sliding block, which makes it easy to install sandpaper of different precisions on the grinding head, so that the staff can perform coarse grinding and fine grinding, so that coarse sandpaper can be gradually used to fine sandpaper, ensuring a smooth transition from preliminary grinding to final polishing, improving surface smoothness, and selecting the appropriate sandpaper precision according to the workpiece requirements, accurately controlling the grinding effect, and avoiding excessive grinding or uneven surface.

[0028] 3. At the same time, the workpiece can be polished in the water tank or the surface of the workpiece can be quickly moistened with water to avoid dust dispersion and air pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a diagram showing the overall structure of the surface polishing device for the 3D printed product of this application;

[0030] Figure 2 This is a side sectional view of the overall structure of the surface polishing device for the 3D printing product of this application;

[0031] Figure 3 This is an overall diagram of the surface polishing device (2) of the 3D printing product of this application;

[0032] Figure 4 This is a partial display diagram of the limit plate of the surface grinding device of the 3D printing product of this application;

[0033] Figure 5 Surface polishing device for 3D printed products in this application Figure 4 A partial enlarged view of point A in the middle;

[0034] Figure 6 This is a partial view of the fixed column of the surface grinding device of the 3D printed product of this application;

[0035] Figure 7 This is a partial view of the square block of the surface polishing device of the 3D printed product of this application;

[0036] Figure 8 This is a side cross-sectional view of the rack of the surface grinding device of the 3D printed product of this application;

[0037] Figure 9 A partial view of the motor of the surface polishing device of the 3D printing product of this application;

[0038] Figure 10 Surface polishing device for 3D printed products in this application Figure 9 A partial view of point B in the middle.

[0039] Reference numerals:

[0040] 1. Device body; 11. Cover plate; 12. Sink;

[0041] 2. Adjustment mechanism; 21. Limit plate; 22. Fixed plate; 23. Screw; 24. Knob; 25. Sliding block; 26. Fixed horizontal plate;

[0042] 27. Fixed column; 28. Rack; 29. ​​Connecting plate; 210. Rotating column; 211. Gear; 212. Ratchet; 213. Fixing member; 214. Cylinder; 215. Pawl; 216. Vertical slot; 217. Connecting block; 218. Limiting slide;

[0043] 219, horizontal board; 220, square block; 221, connecting strip; 222, corner block; 223, vertical board;

[0044] 3. Fastening mechanism; 31. Connecting block; 32. Placement plate; 33. Motor; 34. Protective shell; 35. Rotating part; 36. Fixing ring; 37. Screw. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1-10This application is described in further detail.

[0046] The embodiment of the present application discloses a surface polishing device for a 3D printed product.

[0047] Reference Figure 1 、 Figure 2 A surface polishing device for 3D printed products includes a device body 1, a cover plate 11 fixedly connected to the opening of the side wall of the device body 1 to protect the internal facilities, a water tank 12 is non-through-opened at the bottom of the inner wall of the device body 1 to facilitate water storage, an adjustment mechanism 2 is provided inside the device body 1, and a fixing mechanism 3 is provided inside the device body 1.

[0048] The staff first removes the cover plate 11 and then puts clean water into the water tank 12 to facilitate the subsequent polishing process.

[0049] Reference Figure 3 、 Figure 4 、 Figure 5 The adjusting mechanism 2 includes a limit plate 21 fixedly connected to the bottom of the inner wall of the device body 1. The side wall of the limit plate 21 is horizontally provided with a through groove. The bottom of the inner wall of the device body 1 is fixedly connected to the bottom of the fixed plate 22. The side of the fixed plate 22 close to the limit plate 21 is fixedly connected to the side wall of the limit plate 21, so that the connection is more fixed. A round hole is opened on the side wall of the fixed plate 22. The screw rod 23 movably passes through the round hole, so that the screw rod 23 is rotatably connected to the fixed plate 22. The screw rod 23 movably passes through the side wall of the fixed plate 22 and extends to the outside and is fixedly connected to the side of the knob 24 close to the screw rod 23. The screw rod 23 is threadedly connected to the internal threaded hole 1, so that the screw rod 23 is threadedly connected to the sliding block 25. The sliding block 25 is movable through the through groove 1, so that the sliding block 25 is slidably connected to the limit plate 21, so that the limit plate 21 limits the sliding block 25. The sliding block 25 is movable through the limit plate 21 and extends to one end of the outside and is fixedly connected to the side of the fixed horizontal plate 26 close to the sliding block 25, so that the structure is more stable and the overall operation is more reasonable.

[0050] When the position of the grinding device needs to be adjusted, the staff first rotates the knob 24, the knob 24 will drive the screw rod 23 to rotate synchronously, the screw rod 23 will drive the sliding block 25 to move horizontally, the sliding block 25 is limited by the limiting plate 21, and when the sliding block 25 moves horizontally, it will drive the fixed column 27 to move horizontally synchronously.

[0051] Reference Figure 5 、 Figure 6 、 Figure 7The adjusting mechanism 2 also includes a fixed column 27 fixedly connected to the top of the sliding block 25, so that the structural connection is tighter. A vertical square hole is opened inside the fixed column 27, and the rack 28 is slidably connected to the inner wall of the fixed column 27, so that the fixed column 27 and the rack 28 are slidably connected. The side wall of the fixed column 27 is fixedly connected to the side of the connecting plate 29 close to the fixed column 27, so that the position of the connecting plate 29 is fixed. A circular hole 2 is opened on the side wall of the connecting plate 29, and the rotating column 210 movably passes through the circular hole 2, so that the rotating column 210 is rotatably connected to the connecting plate 29. A circular hole 3 is opened on the side wall of the gear 211, and the rotating column 210 is fixedly passed through the circular hole 3, so that the rotating column 210 is fixedly connected to the gear 211 Next, a circular hole four is opened on the outer wall of the ratchet 212, and the rotating column 210 is fixedly passed through the circular hole four, so that the rotating column 210 is fixedly connected to the ratchet 212, and the side of the connecting plate 29 close to the fixing part 213 is fixedly connected to the bottom of the fixing part 213, so that the connection is more stable, and a circular hole five is opened on the side wall of the fixing part 213, and the cylinder 214 movably passes through the circular hole five, so that the cylinder 214 is rotatably connected to the fixing part 213, and a circular hole six is ​​opened on the side wall of the pawl 215, and the cylinder 214 is fixedly passed through the circular hole six, so that the cylinder 214 is fixedly connected to the pawl 215, and the end of the pawl 215 away from the cylinder 214 is engaged with the outer wall of the ratchet 212, so that the pawl 215 can limit the rotation of the ratchet 212.

[0052] When adjusting the height in the vertical direction, the staff rotates the rotating column 210 clockwise, and the rotating column 210 will drive the ratchet 212 and the gear 211 to rotate clockwise synchronously. When the gear 211 rotates, it will drive the rack 28 to move vertically upward, thereby driving the horizontal plate 219 to move vertically upward. The horizontal plate 219 will drive the square block 220 to move vertically upward. When the specified height is reached, the staff stops rotating the rotating column 210. At this time, when the gear 211 is pressed down by the rack 28 and rotates counterclockwise, the ratchet 212 will be limited by the pawl 215, thereby fixing the movement.

[0053] Reference Figure 4 、 Figure 7 、 Figure 8, the vertical groove 216 is opened through the side of the fixed column 27 away from the connecting plate 29, and the inner wall of the vertical groove 216 is fitted with the connecting block 217, so that the connecting block 217 is slidably connected to the vertical groove 216, and the end of the connecting block 217 close to the rack 28 is fixedly connected to the side of the rack 28 away from the connecting plate 29, so that the rack 28 is limited by the connecting block 217, and the side of the connecting block 217 away from the rack 28 is fixedly connected to the side of the limiting slide 218 close to the connecting block 217, the top of the rack 28 is fixedly connected to the bottom of the horizontal plate 219, and the side of the horizontal plate 219 close to the fixed column 27 is fitted with the top of the fixed column 27, so that the horizontal plate 219 can be driven by the rack 28 The top of the horizontal plate 219 is fixedly connected to the bottom of the square block 220, so that the square block 220 is driven to move vertically through the horizontal plate 219, and one side of the square block 220 is fixedly connected to the side of the connecting bar 221 close to the square block 220, so that the connecting bar 221 is driven to move through the square block 220, and the end of the connecting bar 221 away from the square block 220 is fixedly connected to the end of the corner block 222 close to the connecting bar 221, so that the connecting bar 221 can drive the corner block 222 to move vertically, and the bottom of the corner block 222 is fixedly connected to the end of the vertical plate 223 close to the corner block 222, so that the corner block 222 can drive the vertical plate 223 to move vertically.

[0054] When downward vertical movement is required, the staff rotates the pawl 215 to release the limit of the pawl 215 on the ratchet 212, so that the rotating column 210 can rotate counterclockwise, and the square block 220 will drive the connecting bar 221 to move vertically upward, and the connecting bar 221 will drive the corner block 222 to move vertically upward, and the corner block 222 will drive the vertical plate 223 to move vertically upward, wherein the structure at the lower end of the vertical plate 223 is inside the water tank 12 and is completely immersed in water, so that the waste generated during the grinding process will not splash and is immersed in water.

[0055] Reference Figure 9 、 Figure 10The fixing mechanism 3 includes a connector 31, and the side wall of the connector 31 is fixedly connected to the end of the placement plate 32 close to the connector 31, so that the connector 31 can drive the placement plate 32 to move, and the top of the placement plate 32 is fixedly connected to the bottom of the motor 33. The motor 33 adopts a waterproof motor, thereby improving the service life of the motor 33. The outer wall of the connector 31 is fixedly connected to the inner wall of the protective shell 34. The fixed connection between the connector 31 and the protective shell 34 is sealed by a sealant to prevent water from entering the inside of the protective shell 34. The protective shell 34 is made of metal. The heat generated by the motor 33 during use is transferred to the outside of the protective shell 34 and then cooled by the clean water in the external water tank 12, thereby avoiding excessive heat when the motor 33 is in use. A round hole seven is opened on the side wall of the connector 31, and the output shaft of the motor 33 movably passes through the round hole seven. The output shaft of the motor 33 is rotatably connected to the connecting member 31, and the output shaft of the motor 33 movably passes through the side wall of the connecting member 31 and extends to the outside and is fixedly connected to the side of the rotating member 35 close to the connecting member 31, so that the output shaft of the connecting member 31 can drive the rotating member 35 to rotate. The fixing mechanism 3 also includes a fixing ring 36 sleeved on the outer wall of the rotating member 35, and the inner wall of the fixing ring 36 fits the outer wall of the rotating member 35. The side of the connecting member 31 close to the vertical plate 223 is fixedly connected to the end of the vertical plate 223 away from the corner block 222. The outer wall of the fixing ring 36 is penetrated by an internal threaded hole 2, and the outer wall of the rotating member 35 is penetrated by an internal threaded hole 3, and the internal threaded hole 2 corresponds to the internal threaded hole 3. The screw 37 is threaded through the internal threaded hole 2 and the internal threaded hole 3 at the same time, so that the rotating member 35 and the fixing ring 36 are fixedly connected together by the screw 37.

[0056] When preparing for sanding, the staff first sticks the sandpaper on the surface of the rotating part 35, and then the staff puts the fixing ring 36 on the outside of the sandpaper, and fixes the sandpaper on the surface of the rotating part 35 by putting the fixing ring 36 and the rotating part 35 together. Then the screws 37 are fixed to the rotating part 35 and the fixing ring 36 respectively, so that the sandpaper is completely fixed. When the sandpaper needs to be replaced, just remove the fixing ring 36 to complete the replacement of the sandpaper.

[0057] The motor 33 is of prior art and its structural principle will not be described in detail.

[0058] The implementation principle of the surface polishing device for a 3D printed product in the embodiment of the present application is as follows:

[0059] When the position of the grinding device needs to be adjusted, the staff first rotates the knob 24, which will drive the sliding block 25 to move horizontally, and the sliding block 25 will drive the fixed column 27 to move horizontally. Then the staff rotates the rotating column 210 clockwise, and the rotating column 210 will drive the ratchet 212 and the gear 211 to rotate clockwise synchronously. The gear 211 will drive the square block 220 to move vertically upward. Then the staff stops rotating the rotating column 210, and the ratchet 212 will be limited by the pawl 215, so that To fix the movement, when downward vertical movement is required, the staff rotates the pawl 215 to release the limit of the pawl 215 on the ratchet 212, so that the rotating column 210 can rotate counterclockwise, and the square block 220 will drive the vertical plate 223 to move upward vertically. When preparing to polish, the staff first sticks the sandpaper on the surface of the rotating part 35, and then the staff puts the fixing ring 36 on the outside of the sandpaper to fix the sandpaper on the surface of the rotating part 35, thereby completely fixing the sandpaper.

[0060] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A surface polishing device for 3D printed products, comprising a device body (1), a cover plate (11) fixedly connected to the side wall of the device body (1), and a water tank (12) provided at the bottom of the inner wall of the device body (1), characterized in that: An adjusting mechanism (2) is provided inside the device body (1), and a fastening mechanism (3) is provided inside the device body (1); The adjusting mechanism (2) comprises a limit plate (21) fixedly connected to the bottom of the inner wall of the device body (1); the bottom of the inner wall of the device body (1) is fixedly connected to a fixing plate (22) fixedly connected to the side wall of the limit plate (21); a screw rod (23) is movably passed through the side wall of the fixing plate (22); the screw rod (23) is movably passed through the side wall of the fixing plate (22) and is fixedly connected to a knob (24) on one side extending to the outside; the outer wall of the screw rod (23) is threadedly connected to a sliding block (25) movably passed through the side wall of the limit plate (21); the sliding block (25) is movably passed through the limit plate (21) and is fixedly connected to a fixed horizontal plate (26) on one end extending to the outside; The clamping mechanism (3) comprises a connecting member (31), a placement plate (32) is fixedly connected to the side wall of the connecting member (31), a motor (33) is fixedly connected to the top of the placement plate (32), a protective shell (34) is fixedly connected to the outer wall of the connecting member (31), and an output shaft of the motor (33) movably passes through the side wall of the connecting member (31) and is fixedly connected to a rotating member (35) at one end extending to the outside.

2. The surface polishing device for a 3D printed product according to claim 1, characterized in that: The adjustment mechanism (2) further comprises a fixed column (27) fixedly connected to the top of the sliding block (25), a rack (28) being slidably connected inside the fixed column (27), a connecting plate (29) being fixedly connected to the side wall of the fixed column (27), and a rotating column (210) being movably passed through the side wall of the connecting plate (29).

3. The surface polishing device for a 3D printed product according to claim 2, characterized in that: A gear (211) is fixedly passed through the outer wall of the rotating column (210), a ratchet (212) is fixedly passed through the outer wall of the rotating column (210), and a fixing piece (213) is fixedly connected to the top of the connecting plate (29).

4. The surface polishing device for a 3D printed product according to claim 3, characterized in that: A cylinder (214) is movably passed through the side wall of the fixing member (213), and a ratchet (215) is fixedly passed through the outer wall of the cylinder (214) and is engaged with the outer wall of the ratchet wheel (212).

5. The surface polishing device for a 3D printed product according to claim 4, characterized in that: A vertical groove (216) is provided through the side of the fixing column (27) away from the connecting plate (29), and a connecting block (217) is slidably connected to the inner wall of the vertical groove (216) and fixedly connected to the side of the rack (28) away from the connecting plate (29).

6. The surface polishing device for a 3D printed product according to claim 5, characterized in that: The side of the connecting block (217) away from the rack (28) is fixedly connected to a limiting slide plate (218), the top of the rack (28) is fixedly connected to a horizontal plate (219) that fits with the top of the fixed column (27), and the top of the horizontal plate (219) is fixedly connected to a square block (220).

7. The surface polishing device for a 3D printed product according to claim 6, characterized in that: One side of the square block (220) is fixedly connected to a connecting bar (221), one end of the connecting bar (221) away from the square block (220) is fixedly connected to a corner block (222), and the bottom of the corner block (222) is fixedly connected to a vertical plate (223).

8. The surface polishing device for a 3D printed product according to claim 1, characterized in that: The clamping mechanism (3) further comprises a fixing ring (36) sleeved on the outer wall of the rotating member (35); the top of the connecting member (31) is fixedly connected to the bottom of the vertical plate (223); the outer wall of the fixing ring (36) is threaded with a screw (37) threaded with the outer wall of the rotating member (35).

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