False tooth three-dimensional scanning mechanism

Abstract

The invention discloses a false tooth three-dimensional scanning mechanism, and particularly relates to the technical field of false tooth manufacturing, the false tooth three-dimensional scanning mechanism comprises a base, a mounting frame is fixedly mounted on the top surface of the base, and a driving shaft of a stepping motor rotates to drive two connecting frames, a mounting frame and a false tooth in the mounting frame to rotate; then, the three-dimensional scanner can perform three-dimensional scanning on the bottom of the false tooth, meanwhile, a driving shaft of a second electric motor rotates to drive a second lead screw to rotate, then a moving seat moves linearly, and then the moving seat drives a connecting rod to move; at the moment, connecting rods can rotate along with one side of a movable seat so as to push a sliding rod to move, and meanwhile, the moving sliding rod can push a mounting frame to rotate, so that multi-angle rotation of the false tooth can be realized through autorotation of the mounting frame and turnover driven by two connecting frames, and three-dimensional scanning is performed; therefore, the effect of avoiding repeated clamping and calibration during three-dimensional scanning of the false tooth is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of denture manufacturing, and particularly relates to a three-dimensional scanning mechanism for dentures. Background Art

[0002] Denture manufacturing is to fabricate artificial teeth and their supporting structures through various technologies and materials to replace missing natural teeth, thereby restoring the patient's chewing function, pronunciation clarity, and facial aesthetics. After the denture is fabricated, it is usually placed in the patient's oral cavity for trial fitting. According to the trial fitting effect, the doctor will make necessary adjustments to the denture, such as grinding, polishing, etc., to ensure its comfort and adaptability. At the same time, the functions such as occlusion and pronunciation of the denture will also be checked to ensure that it meets the patient's daily needs. During the manufacturing process of the denture, a three-dimensional scanner is usually required to scan the shape of the denture and collect data.

[0003] In the prior art, when scanning a denture, it is mostly placed on the placement table of a three-dimensional scanner, and data collection is achieved through the rotation of the denture and the capture of the three-dimensional scanning lens. Generally, after the denture is placed, the existing three-dimensional scanner can only rotate it in one direction. Therefore, when it is necessary to scan the bottom of the denture to supplement the data of the gum and tooth root at the bottom, the staff needs to turn the denture around and scan it again. During this process, the staff needs to re-clamp the denture and re-align the three-dimensional scanning lens. As a result, the staff needs to spend a long time on the clamping of the denture and the adjustment of the lens, which will affect the efficiency during batch scanning. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a three-dimensional scanning mechanism for dentures to solve the problems presented in the above background art.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A three-dimensional scanning mechanism for dentures includes a base. A mounting frame is fixedly installed on the top surface of the base. A mounting seat is slidably connected to the top surface of the base. An installation disk is arranged inside the mounting frame. A three-dimensional scanner is fixedly installed inside the installation disk. A PLC controller is highly installed on the top surface of the base. The three-dimensional scanner is electrically connected to the PLC controller;

[0007] A first lead screw is rotatably connected inside the base. A first connecting seat is threadedly connected to the outer circumferential wall of the first lead screw. The top surface of the first connecting seat is fixedly installed with the mounting seat;

[0008] Two connecting frames, two of the connecting frames are respectively rotatably connected to both sides inside the mounting base. One side of the mounting base is fixedly installed with a stepper motor, the stepper motor is electrically connected to the PLC controller, one end of the drive shaft of the stepper motor is fixedly installed with the connecting frame, an installation frame is arranged between the two connecting frames, two clamping plates are arranged inside the installation frame, and one side of each of the two clamping plates is rotatably connected with an adjusting bolt, and the adjusting bolt is threadedly connected with the installation frame.

[0009] By adopting the above technical solution, during use, the staff rotates the first lead screw, and then under the threaded transmission action of the first lead screw and the first connecting seat, the first connecting seat will drive the mounting base to move and make it leave directly below the 3D scanner. Then the staff rotates the two adjusting bolts. At this time, under the threaded transmission action of the adjusting bolts and the installation frame, the two clamping plates will move away from each other. Then the staff places the denture between the two clamping plates and clamps it through the two adjusting bolts. After the above steps are completed, the staff reversely rotates the first lead screw to place the clamped and fixed denture directly below the 3D scanner. Then the staff starts the 3D scanner through the PLC controller to perform 3D scanning on the denture. During this process, the staff can start the stepper motor and the two second electric motors through the PLC controller. Then the rotation of the drive shaft of the stepper motor will drive the two connecting frames, the installation frame and the denture inside it to rotate. Then the 3D scanner can perform 3D scanning on the bottom of the denture. At the same time, the rotation of the drive shaft of the second electric motor will drive the second lead screw to rotate. Then under the threaded transmission action of the second lead screw and the moving seat, the moving seat will perform linear movement. Then the moving moving seat will drive the connecting rod to move. At this time, the connecting rod will rotate along with one side of the moving seat to push the sliding rod to move. Then the moving sliding rod will drive the connecting plate to move and compress the fourth spring. At the same time, the moving sliding rod will push the installation frame to make it rotate. In this way, through the self-rotation of the installation frame and the flipping driven by the two connecting frames, the denture can be rotated at multiple angles for 3D scanning, so as to achieve the effect of avoiding multiple clamping and calibration of the denture during 3D scanning.

[0010] Preferably, transmission boxes are respectively fixedly installed on one side inside the two connecting frames. A second lead screw is rotatably connected inside the transmission box. A moving seat is slidably connected inside the transmission box. The moving seat is threadedly connected with the second lead screw. A second electric motor is fixedly installed on one side of the transmission box. One end of the drive shaft of the second electric motor is fixedly installed with the second lead screw. The second electric motor is electrically connected to the PLC controller. One side of the moving seat is rotatably connected with a connecting rod. One end of the connecting rod is rotatably connected with the sliding rod. The sliding rod is slidably connected with the connecting frame. One end of the sliding rod is rotatably connected with the installation frame.

[0011] By adopting the above technical solution, it is convenient to drive the mounting bracket to rotate to adjust the angle of the clamped denture.

[0012] Preferably, retraction boxes are respectively fixedly installed on the top surfaces of the two connecting brackets. A positioning column is fixedly installed inside the retraction box. A connecting plate is movably sleeved on the outer circular wall surface of the positioning column. The bottom surface of the connecting plate is fixedly installed with the sliding rod. A fourth spring is movably sleeved on the outer circular wall surface of the positioning column.

[0013] By adopting the above technical solution, it is convenient to provide a resilience force to the mounting bracket after it rotates to make it reset.

[0014] Preferably, a first mounting cap is fixedly sleeved inside the mounting frame. A first connecting column is movably sleeved inside the first mounting cap. A fixing sleeve is fixedly installed on the bottom surface of the first connecting column. A second spring is movably sleeved on the outer circular wall surface of the first connecting column. A toothed ring is rotatably connected to the inner top surface of the mounting frame. A transmission gear is meshed and connected inside the toothed ring. A first electric motor is fixedly installed on the top surface of the mounting frame. The first electric motor is electrically connected to the PLC controller. The bottom surface of the driving shaft of the first electric motor is fixedly installed with the transmission gear. A clamping sleeve is fixedly installed on the inner top surface of the mounting frame. A ball shaft is fixedly installed on the top surface of the mounting disc. The ball shaft is movably sleeved on the inner circular wall surface of the fixing sleeve. Fixing rings are respectively fixedly installed on the inner top surface of the mounting frame and the top surface of the mounting disc. A first spring is arranged between the two fixing rings. One end of the first spring is fixedly installed on the inner circular wall surface of the fixing ring. A second mounting cap is fixedly installed on the bottom surface of the toothed ring. A second connecting column is movably sleeved inside the second mounting cap. A third spring is movably sleeved on the outer circular wall surface of the second connecting column. A threaded cap is fixedly installed on the bottom surface of the second connecting column. A resisting column is threadedly connected inside the threaded cap.

[0015] By adopting the above technical solution, when the staff uses the 3D scanner for 3D scanning, the staff uses the first electric motor. Then, the rotation of the driving shaft of the first electric motor will drive the transmission gear to rotate. Then, under the meshing transmission of the transmission gear and the teeth of the toothed ring, the toothed ring will rotate accordingly. Then, the rotation of the toothed ring will drive the second mounting cap, the threaded cap and the base at its bottom to rotate. At this time, the clamping sleeve will be stuck between the threaded cap and the second mounting cap and the second connecting column will squeeze the third spring. Then, the squeezed threaded cap will drive the resisting column to move downward. Then, during the rotation of the resisting column, it will continuously contact the top of the mounting disc and make it tilt. Then, the 3D scanner will tilt at an angle accordingly and scan the denture. At the same time, the resilience force of the first spring will keep the mounting disc reset after use. This is convenient for adjusting the scanning direction of the 3D scanner in multiple directions during scanning.

[0016] Preferably, two lamp shades are fixedly installed on the inner bottom surface of the installation base. A tapping frame is rotatably connected inside each of the two lamp shades. A plurality of supplementary lights are fixedly installed inside the tapping frame, and the supplementary lights are electrically connected to the PLC controller.

[0017] By adopting the above technical solution, it is convenient to perform supplementary lighting on the bottom of the denture during scanning.

[0018] Preferably, a rotating rod is rotatably connected inside each of the two lamp shades. Two adjusting blocks are fixedly sleeved on the outer circumferential wall surface of the rotating rod. Fixing caps are respectively fixedly installed on both sides of the lamp shade. A coil spring is fixedly sleeved inside the fixing cap, and the inner circumferential wall surface of the coil spring is fixedly sleeved on the outer circumferential wall surface of the rotating shaft of the tapping frame.

[0019] By adopting the above technical solution, the staff can rotate the two rotating rods. Then, under the action of the arc-shaped surfaces of the two adjusting blocks, the adjusting blocks will push against the tapping frame to make it rotate, so as to adjust the irradiation directions of the multiple supplementary lights.

[0020] Preferably, bellows are respectively fixedly installed on both sides of the moving base, and one side of the bellows is fixedly installed with the transmission box.

[0021] By adopting the above technical solution, it is possible to prevent external dust or foreign objects from entering the inside of the transmission box and affecting its use.

[0022] Preferably, rubber anti-slip pads are respectively fixedly installed on one side of the two clamping plates.

[0023] By adopting the above technical solution, it is possible to prevent the denture from sliding during clamping.

[0024] Preferably, two limiting rods are respectively fixedly installed on one side of the two clamping plates, and the limiting rods penetrate through the mounting frame.

[0025] By adopting the above technical solution, it is convenient to guide and limit the two clamping plates when they move.

[0026] Preferably, wear-resistant coatings are applied on the top surface of the mounting disc and the surface of the abutting column.

[0027] By adopting the above technical solution, it is convenient to improve the service life of the mounting disc and the abutting column.

[0028] In summary, the present invention mainly has the following beneficial effects:

[0029] The rotation of the drive shaft of the stepper motor will drive the two connecting frames, the mounting frame and the denture inside it to rotate. Then, the 3D scanner can perform a 3D scan on the bottom of the denture. At the same time, the rotation of the drive shaft of the second electric motor will drive the second lead screw to rotate, and then the moving seat will move linearly. Then, the moving seat will drive the connecting rod to move. At this time, the connecting rod will rotate along with one side of the moving seat to push the sliding rod to move. At the same time, the moving sliding rod will push the mounting frame to make it rotate. In this way, through the self-rotation of the mounting frame and the flipping driven by the two connecting frames, the denture can rotate at multiple angles for 3D scanning, so as to avoid the need for multiple clamping and calibration when the denture is scanned three-dimensionally. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic three-dimensional structure diagram of the present invention;

[0031] Figure 2 is a schematic structure diagram of the mounting frame of the present invention;

[0032] Figure 3 is a schematic structure diagram of the tooth ring of the present invention;

[0033] Figure 4 is a schematic structure diagram of the first mounting cap of the present invention;

[0034] Figure 5 is a schematic structure diagram of the second mounting cap of the present invention;

[0035] Figure 6 is a schematic structure diagram of the base of the present invention;

[0036] Figure 7 is a schematic structure diagram of the mounting seat of the present invention;

[0037] Figure 8 is a schematic structure diagram of the mounting frame of the present invention;

[0038] Figure 9 is a schematic structure diagram of the connecting frame of the present invention.

[0039] Reference numerals: 1, base; 2, mounting frame; 3, mounting seat; 4, PLC controller; 5, mounting plate; 6, three-dimensional scanner; 7, first mounting cap; 8, first electric motor; 9, toothed ring; 10, drive gear; 11, abutting post; 12, fixing ring; 13, first spring; 14, ball shaft; 15, clamping sleeve; 16, first connecting column; 17, fixing sleeve; 18, second spring; 19, threaded nut; 20, second mounting cap; 21, second connecting column; 22, third spring; 23, first lead screw; 24, first connecting seat; 25, stepping motor; 26, connecting frame; 27, mounting frame; 28, lamp shade; 29, tapping frame; 30, supplementary light; 31, coil spring; 32, fixing cap; 33, adjusting block; 34, rotating rod; 35, clamping plate; 36, rubber anti-slip pad; 37, adjusting bolt; 38, limiting rod; 39, transmission box; 40, retraction box; 41, connecting rod; 42, sliding rod; 43, positioning column; 44, fourth spring; 45, connecting plate; 46, second lead screw; 47, moving seat; 48, second electric motor; 49, bellows cover. Detailed implementation manners

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] Embodiment 1

[0042] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9, a three-dimensional scanning mechanism for dentures, comprising: a base 1, on the top surface of the base 1, a mounting frame 2 is fixedly installed, on the top surface of the base 1, a mounting seat 3 is slidably connected, inside the mounting frame 2, an installation disc 5 is arranged, inside the installation disc 5, a three-dimensional scanner 6 is fixedly installed, on the top surface of the base 1, a PLC controller 4 is height-installed, the three-dimensional scanner 6 is electrically connected to the PLC controller 4; a first lead screw 23, the first lead screw 23 is rotatably connected inside the base 1, on the outer wall surface of the first lead screw 23, a first connection seat 24 is threadedly connected, on the top surface of the first connection seat 24, the mounting seat 3 is fixedly installed; two connecting frames 26, the two connecting frames 26 are respectively rotatably connected on both sides inside the mounting seat 3, on one side of the mounting seat 3, a stepping motor 25 is fixedly installed, the stepping motor 25 is electrically connected to the PLC controller 4, one end of the drive shaft of the stepping motor 25 is fixedly connected to the connecting frame 26, between the two connecting frames 26, an installation frame 27 is arranged, inside the installation frame 27, two clamping plates 35 are arranged, on one side of each of the two clamping plates 35, an adjusting bolt 37 is rotatably connected, the adjusting bolt 37 is threadedly connected to the installation frame 27; two transmission boxes 39, the two transmission boxes 39 are respectively fixedly installed on one side inside the two connecting frames 26, inside the transmission box 39, a second lead screw 46 is rotatably connected, inside the transmission box 39, a moving seat 47 is slidably connected, the moving seat 47 is threadedly connected to the second lead screw 46, on one side of the transmission box 39, a second electric motor 48 is fixedly installed, one end of the drive shaft of the second electric motor 48 is fixedly connected to the second lead screw 46, the second electric motor 48 is electrically connected to the PLC controller 4, on one side of the moving seat 47, a connecting rod 41 is rotatably connected, one end of the connecting rod 41 is rotatably connected to a sliding rod 42, the sliding rod 42 is slidably connected to the connecting frame 26, one end of the sliding rod 42 is rotatably connected to the installation frame 27;Two retraction boxes 40 are respectively and fixedly installed on the top surfaces of two connecting frames 26. A positioning column 43 is fixedly installed inside the retraction box 40. A connecting plate 45 is movably sleeved on the outer wall surface of the positioning column 43. The bottom surface of the connecting plate 45 is fixedly installed with a sliding rod 42. A fourth spring 44 is movably sleeved on the outer wall surface of the positioning column 43. During use, the staff rotates the first lead screw 23. Then, under the threaded drive of the first lead screw 23 and the first connecting seat 24, the first connecting seat 24 will drive the mounting seat 3 to move and make it leave directly below the 3D scanner 6. Then, the staff rotates two adjusting bolts 37. At this time, under the threaded drive of the adjusting bolts 37 and the mounting frame 27, the two clamping plates 35 will move away from each other. Then, the staff places the denture between the two clamping plates 35 and clamps it through the two adjusting bolts 37. After the above steps are completed, the staff reversely rotates the first lead screw 23 to place the clamped and fixed denture directly below the 3D scanner 6. Then, the staff starts the 3D scanner 6 through the PLC controller 4 to perform 3D scanning on the denture. During this process, the staff can start the stepping motor 25 and two second electric motors 48 through the PLC controller 4. Then, the rotation of the drive shaft of the stepping motor 25 will drive the two connecting frames 26 and the mounting frame 27 and the denture inside them to rotate. Then, the 3D scanner 6 can perform 3D scanning on the bottom of the denture. At the same time, the rotation of the drive shaft of the second electric motor 48 will drive the second lead screw 46 to rotate. Then, under the threaded drive of the second lead screw 46 and the moving seat 47, the moving seat 47 will perform linear movement. Then, the moving moving seat 47 will drive the connecting rod 41 to move. At this time, the connecting rod 41 will rotate along with one side of the moving seat 47 to push the sliding rod 42 to move. Then, the moving sliding rod 42 will drive the connecting plate 45 to move and compress the fourth spring 44. At the same time, the moving sliding rod 42 will push the mounting frame 27 to make it rotate. In this way, through the self-rotation of the mounting frame 27 and the flipping driven by the two connecting frames 26, the denture can be rotated at multiple angles for 3D scanning, so as to achieve the effect of avoiding multiple clamping and calibration of the denture during 3D scanning.;

[0043] Embodiment 2

[0044] Based on the above Embodiment 1, refer to Figure 3 、 Figure 4 and Figure 5, a first mounting cap 7 is fixedly sleeved inside the mounting frame 2, a first connecting column 16 is movably sleeved inside the first mounting cap 7, a fixing sleeve 17 is fixedly installed on the bottom surface of the first connecting column 16, a second spring 18 is movably sleeved on the outer wall surface of the first connecting column 16, a toothed ring 9 is rotatably connected to the inner top surface of the mounting frame 2, a transmission gear 10 is meshed and connected inside the toothed ring 9, a first electric motor 8 is fixedly installed on the top surface of the mounting frame 2, the first electric motor 8 is electrically connected to the PLC controller 4, the bottom surface of the driving shaft of the first electric motor 8 is fixedly installed with the transmission gear 10, a clamping sleeve 15 is fixedly installed on the inner top surface of the mounting frame 2, a ball shaft 14 is fixedly installed on the top surface of the mounting plate 5, and the ball shaft 14 is movably sleeved with the inner wall surface of the fixing sleeve 17. Fixed rings 12 are fixedly installed on the inner top surface of the mounting frame 2 and the top surface of the mounting plate 5 respectively. A first spring 13 is arranged between the two fixed rings 12. One end of the first spring 13 is fixedly installed on the inner wall surface of the fixed ring 12. A second mounting cap 20 is fixedly installed on the bottom surface of the toothed ring 9. A second connecting column 21 is movably sleeved inside the second mounting cap 20. A third spring 22 is movably sleeved on the outer wall surface of the second connecting column 21. A threaded cap 19 is fixedly installed on the bottom surface of the second connecting column 21. A resisting column 11 is threadedly connected inside the threaded cap 19. When the staff uses the 3D scanner 6 for 3D scanning, the staff uses the first electric motor 8. Then, the rotation of the driving shaft of the first electric motor 8 will drive the transmission gear 10 to rotate. Then, under the meshing transmission of the transmission gear 10 and the teeth of the toothed ring 9, the toothed ring 9 will rotate accordingly. Then, the rotation of the toothed ring 9 will drive the second mounting cap 20, the threaded cap 19 and the base 1 at its bottom to rotate. At this time, the clamping sleeve 15 will be stuck between the threaded cap 19 and the second mounting cap 20 and cause the second connecting column 21 to squeeze the third spring 22. Then, the squeezed threaded cap 19 will drive the resisting column 11 to move downward. Then, during the rotation of the resisting column 11, it will continuously contact the top of the mounting plate 5 and cause it to tilt. Then, the 3D scanner 6 will tilt at an angle accordingly and scan the denture. At the same time, the resilience of the first spring 13 will keep the mounting plate 5 reset after use, so as to facilitate multi-directional adjustment of the scanning direction of the 3D scanner 6 during scanning.

[0045] Embodiment 3

[0046] Based on the above-mentioned Embodiment 1 or 2, referring to Figure 2 and Figure 7, two lamp holders 28 are fixedly installed on the inner bottom surface of the mounting base 3. Inside each of the two lamp holders 28, there is a rotary connection with a tapping frame 29. Inside the tapping frame 29, a number of supplementary lights 30 are fixedly installed. The supplementary lights 30 are electrically connected to the PLC controller 4, which is convenient for performing supplementary lighting on the bottom of the denture during denture scanning. Inside each of the two lamp holders 28, there is a rotary connection with a rotating rod 34. On the outer circumferential wall surface of the rotating rod 34, two adjusting blocks 33 are fixedly sleeved. On both sides of the lamp holder 28, fixing caps 32 are respectively fixedly installed. Inside the fixing cap 32, a coil spring 31 is fixedly sleeved. The inner circumferential wall surface of the coil spring 31 is fixedly sleeved with the outer circumferential wall surface of the rotating shaft of the tapping frame 29. The staff can rotate the two rotating rods 34. Then, under the action of the arc surfaces of the two adjusting blocks 33, the adjusting blocks 33 will push against the tapping frame 29 to make it rotate, thereby adjusting the irradiation directions of the multiple supplementary lights 30.

[0047] Embodiment Four

[0048] Based on the above Embodiment One, Two or Three, refer to Figure 3 , Figure 5 , Figure 8 and Figure 9 , on both sides of the moving base 47, bellows 49 are respectively fixedly installed. One side of the bellows 49 is fixedly installed with the transmission box 39, which prevents external dust or foreign objects from entering the inside of the transmission box 39 and affecting its use. On one side of each of the two clamping plates 35, rubber anti-slip pads 36 are respectively fixedly installed, which prevents the denture from sliding during clamping. On one side of each of the two clamping plates 35, two limiting rods 38 are respectively fixedly installed. The limiting rods 38 penetrate through the mounting frame 27, which is convenient for guiding and limiting the two clamping plates 35 when they move. Wear-resistant coatings are applied to the top surface of the mounting disc 5 and the surface of the abutting column 11, which is convenient for improving the service life of the mounting disc 5 and the abutting column 11.

[0049] Working principle: Please refer to Figures 1 - 9As shown, during use, the operator rotates the first lead screw 23. Then, under the thread driving action of the first lead screw 23 and the first connecting seat 24, the first connecting seat 24 will drive the mounting seat 3 to move and move it away from directly below the 3D scanner 6. Then, the operator rotates two adjusting bolts 37. At this time, under the thread driving action of the adjusting bolts 37 and the mounting bracket 27, the two clamping plates 35 will move away from each other. Then, the operator places the denture between the two clamping plates 35 and clamps it through the two adjusting bolts 37. After the above steps are completed, the operator reversely rotates the first lead screw 23 to place the clamped denture directly below the 3D scanner 6. Then, the operator starts the 3D scanner 6 through the PLC controller 4 to perform a 3D scan on the denture. During this process, the operator can start the stepping motor 25 and two second electric motors 48 through the PLC controller 4. Then, the rotation of the drive shaft of the stepping motor 25 will drive the two connecting brackets 26 and the mounting bracket 27 and the denture inside them to rotate. Then, the 3D scanner 6 can perform a 3D scan on the bottom of the denture. At the same time, the rotation of the drive shaft of the second electric motor 48 will drive the second lead screw 46 to rotate. Then, under the thread driving action of the second lead screw 46 and the moving seat 47, the moving seat 47 will perform a linear movement. Then, the moving moving seat 47 will drive the connecting rod 41 to move. At this time, the connecting rod 41 will rotate along with one side of the moving seat 47 and thus push the sliding rod 42 to move. Then, the moving sliding rod 42 will drive the connecting plate 45 to move and compress the fourth spring 44. At the same time, the moving sliding rod 42 will push the mounting bracket 27 to make it rotate. In this way, through the self-rotation of the mounting bracket 27 and the flipping driven by the two connecting brackets 26, the denture can be rotated at multiple angles for 3D scanning, so as to achieve the effect of avoiding multiple clamping and calibration when the denture is subjected to 3D scanning.

[0050] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-dimensional scanning mechanism for dentures, characterized in that Including: A base (1), on the top surface of the base (1), a mounting frame (2) is fixedly installed. On the top surface of the base (1), a mounting seat (3) is slidably connected. Inside the mounting frame (2), an installation disc (5) is provided. Inside the installation disc (5), a three-dimensional scanner (6) is fixedly installed. On the top surface of the base (1), a PLC controller (4) is installed at a certain height. The three-dimensional scanner (6) is electrically connected to the PLC controller (4); A first lead screw (23), the first lead screw (23) is rotatably connected inside the base (1). On the outer circumferential wall of the first lead screw (23), a first connection seat (24) is threadedly connected. On the top surface of the first connection seat (24), it is fixedly installed with the mounting seat (3); Two connecting frames (26), the two connecting frames (26) are respectively rotatably connected to both sides inside the mounting seat (3). On one side of the mounting seat (3), a stepping motor (25) is fixedly installed. The stepping motor (25) is electrically connected to the PLC controller (4). One end of the drive shaft of the stepping motor (25) is fixedly installed with the connecting frame (26). Between the two connecting frames (26), an installation frame (27) is provided. Inside the installation frame (27), two clamping plates (35) are provided. On one side of each of the two clamping plates (35), an adjusting bolt (37) is rotatably connected. The adjusting bolt (37) is threadedly connected to the installation frame (27). On one side of the connecting frame (26), a sliding rod (42) is slidably connected. One end of the sliding rod (42) is rotatably connected to the installation frame (27).

2. The three-dimensional scanning mechanism for dentures according to claim 1, characterized in that: On one side inside each of the two connecting frames (26), a transmission box (39) is fixedly installed. Inside the transmission box (39), a second lead screw (46) is rotatably connected. Inside the transmission box (39), a moving seat (47) is slidably connected. The moving seat (47) is threadedly connected to the second lead screw (46). On one side of the transmission box (39), a second electric motor (48) is fixedly installed. One end of the drive shaft of the second electric motor (48) is fixedly installed with the second lead screw (46). The second electric motor (48) is electrically connected to the PLC controller (4). On one side of the moving seat (47), a connecting rod (41) is rotatably connected. One end of the connecting rod (41) is rotatably connected to the sliding rod (42). The sliding rod (42) is slidably connected to the connecting frame (26). One end of the sliding rod (42) is rotatably connected to the installation frame (27).

3. The three-dimensional scanning mechanism for dentures according to claim 1, characterized in that: On the top surface of each of the two connecting frames (26), a retraction box (40) is fixedly installed. Inside the retraction box (40), a positioning column (43) is fixedly installed. On the outer circumferential wall of the positioning column (43), a connecting plate (45) is movably sleeved. On the bottom surface of the connecting plate (45), it is fixedly installed with the sliding rod (42). On the outer circumferential wall of the positioning column (43), a fourth spring (44) is movably sleeved.

4. A three-dimensional scanning mechanism for dentures according to claim 1, characterized in that: Inside the mounting frame (2), a first mounting cap (7) is fixedly sleeved. Inside the first mounting cap (7), a first connecting column (16) is movably sleeved. At the bottom surface of the first connecting column (16), a fixing sleeve (17) is fixedly installed. On the outer circumferential wall surface of the first connecting column (16), a second spring (18) is movably sleeved. On the inner top surface of the mounting frame (2), a toothed ring (9) is rotatably connected. Inside the toothed ring (9), a transmission gear (10) is meshed. On the top surface of the mounting frame (2), a first electric motor (8) is fixedly installed. The first electric motor (8) is electrically connected to the PLC controller (4). At the bottom surface of the driving shaft of the first electric motor (8), the transmission gear (10) is fixedly installed. On the inner top surface of the mounting frame (2), a clamping sleeve (15) is fixedly installed. On the top surface of the mounting disc (5), a ball shaft (14) is fixedly installed. The ball shaft (14) is movably sleeved with the inner circumferential wall surface of the fixing sleeve (17). On the inner top surface of the mounting frame (2) and the top surface of the mounting disc (5), fixing rings (12) are respectively fixedly installed. Between the two fixing rings (12), a first spring (13) is arranged. The inner circumferential wall surface of the fixing ring (12) is fixedly installed with one end of the first spring (13). At the bottom surface of the toothed ring (9), a second mounting cap (20) is fixedly installed. Inside the second mounting cap (20), a second connecting column (21) is movably sleeved. On the outer circumferential wall surface of the second connecting column (21), a third spring (22) is movably sleeved. At the bottom surface of the second connecting column (21), a threaded cap (19) is fixedly installed. Inside the threaded cap (19), a resisting column (11) is threadedly connected.

5. The three-dimensional scanning mechanism for dentures according to claim 1, characterized in that: On the inner bottom surface of the mounting base (3), two lamp shades (28) are fixedly installed. Inside each of the two lamp shades (28), a branching frame (29) is rotatably connected. Inside the branching frame (29), a plurality of supplementary light lamps (30) are fixedly installed. The supplementary light lamps (30) are electrically connected to the PLC controller (4).

6. The three-dimensional scanning mechanism for dentures according to claim 5, characterized in that: Inside each of the two lamp shades (28), a rotating rod (34) is rotatably connected. On the outer circumferential wall surface of the rotating rod (34), two adjusting blocks (33) are fixedly sleeved. On both sides of the lamp shade (28), fixing caps (32) are respectively fixedly installed. Inside the fixing cap (32), a coil spring (31) is fixedly sleeved. The inner circumferential wall surface of the coil spring (31) is fixedly installed with the outer circumferential wall surface of the rotating shaft of the branching frame (29).

7. The three-dimensional scanning mechanism for dentures according to claim 2, characterized in that: On both sides of the moving seat (47), bellows covers (49) are respectively fixedly installed. One side of the bellows cover (49) is fixedly installed with the transmission box (39).

8. The three-dimensional scanning mechanism for dentures according to claim 1, wherein: On one side of each of the two clamping plates (35), a rubber anti-slip pad (36) is fixedly installed.

9. A three-dimensional scanning mechanism for dentures according to claim 1, characterized in that: On one side of each of the two clamping plates (35), two limiting rods (38) are respectively fixedly installed. The limiting rods (38) penetrate through the mounting frame (27).

10. A three-dimensional scanning mechanism for dentures according to claim 4, characterized in that: The top surface of the mounting disc (5) and the surface of the resisting column (11) are both coated with wear-resistant coatings.

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