A three-dimensional scanning calibration system for an oral cavity
By setting connectors and joints on the scanner, the calibration of the scanner and the power supply and signal input of the calibrator are realized, solving the problem of wire tangling and improving the convenience of the calibrator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BOLIAN ZHONGKE (WUHAN) TECH CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-10
AI Technical Summary
In existing 3D scanning calibration systems, the calibration instrument's wires increase connection complexity and are prone to tangling, affecting ease of use.
By setting connectors and joints on the scanner, the scanner can be used to power the calibrator and transmit signals, simplifying the connection process and avoiding wire tangling.
It enables simultaneous power supply and signal input for scanner calibration, simplifies the connection process, and improves the ease of use of the calibrator.
Smart Images
Figure CN224474484U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of three-dimensional scanning technology, specifically relating to a three-dimensional scanning calibration system for oral cavity. Background Technology
[0002] In the field of oral healthcare, 3D scanning calibration systems consist of a scanner and a calibration instrument. The scanner acquires 3D structural information of the oral cavity through scanning, providing data support for the development of treatment plans such as orthodontics and dental implants. Before using an intraoral 3D scanner, it needs to be calibrated using a calibration instrument to ensure the accuracy of the scan data.
[0003] However, existing 3D scanning calibration systems have a wire attached to the calibrator for power supply and signal input (this wire connects to the computer). In actual use, this wire not only increases the complexity of the entire 3D scanning connection, but also causes tangling during installation and use, ultimately affecting the ease of use of the calibrator. Utility Model Content
[0004] In view of the above-mentioned defects or improvement needs of the existing technology, this utility model provides a three-dimensional scanning calibration system for the oral cavity. Its purpose is to not only calibrate the scanner, but also to enable the power supply and signal transmission of the calibrator through the scanner, thus ensuring the ease of use of the calibrator.
[0005] To achieve the above objectives, this utility model provides a three-dimensional scanning calibration system for the oral cavity, the three-dimensional scanning calibration system including a calibrator and a scanner;
[0006] The calibrator includes a housing, a calibration plate, a drive mechanism, a main circuit board, and a connector. One end of the housing has an opening communicating with the scanner. The calibration plate, the drive mechanism, and the main circuit board are all located inside the housing. The calibration plate is arranged facing the opening. The drive mechanism is used to drive the calibration plate to rotate and move in a direction close to or away from the opening. The main circuit board is electrically connected to the drive mechanism and the connector, respectively. The connector is located in the opening and has a first connector.
[0007] One end of the scanner is movably inserted into the opening, and a second connector for insertion into the first connector is provided on one end of the scanner.
[0008] Optionally, the drive mechanism includes a sliding seat, a lead screw, a nut, a lead screw motor, and a rotary stepper motor. The sliding seat is slidably arranged in the inner cavity of the housing along a direction close to or away from the opening. The lead screw motor and the rotary stepper motor are located on the sliding seat. The nut is fixedly installed in the inner cavity of the housing. One end of the lead screw is engaged with the nut, and the other end of the lead screw is drivenly connected to the lead screw motor. The output shaft of the rotary stepper motor is drivenly connected to the calibration plate.
[0009] Optionally, the calibrator further includes a base plate, which is fixed to the inner wall of the housing. A nut mounting seat is provided on the base plate, and the nut is inserted into the nut mounting seat. The sliding seat is slidably arranged on the base plate.
[0010] Optionally, the base plate has a slide rail, and the sliding seat slides in cooperation with the slide rail.
[0011] Optionally, the base plate has two spaced-apart brackets, and the two ends of the main circuit board are respectively fixed on the corresponding brackets, and the main circuit board is arranged parallel to and spaced apart from the base plate.
[0012] Optionally, the calibrator further includes two limit switches located in the inner cavity of the housing, and the sliding seat is located between the two limit switches to trigger the limit switches. Each limit switch is electrically connected to the main circuit board.
[0013] Optionally, a buckle is inserted into one end of the housing, and the buckle is provided with the opening.
[0014] Optionally, the scanner is equipped with a light source for illuminating the calibration plate.
[0015] Optionally, an indicator light is inserted into the outer wall of the housing, and the indicator light is electrically connected to the main circuit board.
[0016] Optionally, the bottom surface of the outer wall of the housing has a plurality of spaced-apart anti-slip pads.
[0017] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.
[0018] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:
[0019] In the three-dimensional scanning calibration system for the oral cavity provided in this embodiment of the present invention, during the calibration of the scanner, one end of the scanner is inserted into the opening, at which time one end of the scanner is positioned opposite to the calibration plate. The scanning end (i.e., the camera) of the scanner corresponds to the calibration plate. Correspondingly, the drive mechanism can move and rotate the calibration plate laterally according to the control signals provided by the main circuit board, thereby adjusting the calibration plate. The scanner then performs scanning analysis accordingly, thus ultimately achieving the calibration of the scanner.
[0020] Furthermore, when the scanner is inserted into the opening, the second connector on the scanner will connect with the first connector to conduct electricity. At this time, the scanner and the calibrator are connected, that is, the electrical signal will be transmitted through the scanner to the connector and the main circuit board. Thus, the scanner can provide power and input signals to the calibrator, eliminating the need to separately power and input signals to the calibrator through wires. This simplifies the connection of the entire 3D scanning process and avoids the problem of wire tangling during installation and use.
[0021] In other words, the three-dimensional scanning calibration system for the oral cavity provided by this utility model embodiment can not only calibrate the scanner, but also power the calibrator and transmit signals through the scanner, ensuring the ease of use of the calibrator. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of a three-dimensional scanning calibration system for the oral cavity provided in an embodiment of the present invention;
[0023] Figure 2 This is a schematic diagram of the structure of the calibration instrument provided in this embodiment of the utility model;
[0024] Figure 3 This is a schematic diagram of the drive mechanism provided in an embodiment of the present invention;
[0025] Figure 4 This is a schematic diagram of the structure of the calibration instrument under the hidden shell provided in this embodiment of the utility model;
[0026] Figure 5 yes Figure 4 Top view.
[0027] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:
[0028] 1. Calibrator; 11. Housing; 111. Opening; 112. Buckle; 113. Indicator light; 114. Anti-slip pad; 12. Calibration plate; 13. Drive mechanism; 131. Sliding seat; 132. Lead screw; 133. Nut; 134. Lead screw motor; 135. Rotary stepper motor; 14. Main circuit board; 15. Connector; 151. First connector; 16. Base plate; 161. Nut mounting seat; 162. Slide rail; 163. Bracket; 17. Limit switch; 2. Scanner. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.
[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0034] Example:
[0035] Figure 1 This is a schematic diagram of the structure of a three-dimensional scanning calibration system for the oral cavity provided in an embodiment of this utility model, as shown below. Figure 1 As shown, the three-dimensional scanning calibration system includes a calibrator 1 and a scanner 2.
[0036] Figure 2 This is a schematic diagram of the calibration instrument provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of the drive mechanism provided in an embodiment of the present invention. Figure 4 This is a schematic diagram of the structure of the calibration instrument hidden under the outer shell provided in this embodiment of the utility model. Figure 5 yes Figure 4 Top view, combined Figures 2-5 As shown, the calibrator 1 includes a housing 11, a calibration plate 12, a drive mechanism 13, a main circuit board 14, and a connector 15. One end of the housing 11 has an opening 111 communicating with the inner cavity of the housing 11. The calibration plate 12, the drive mechanism 13, and the main circuit board 14 are all located in the inner cavity of the housing 11. The calibration plate 12 is arranged facing the opening 111. The drive mechanism 13 is used to drive the calibration plate 12 to rotate and move along the direction close to or away from the opening 111 (i.e., the X-axis direction). The main circuit board 14 is electrically connected to the drive mechanism 13 and the connector 15 respectively. The connector 15 is located in the opening 111 and is provided with a first connector 151.
[0037] One end of the scanner 2 is movably inserted into the opening 111, and a second connector (not shown) is provided on one end of the scanner 2 for insertion into the first connector 151.
[0038] In the three-dimensional scanning calibration system for the oral cavity provided in this embodiment of the present invention, when calibrating the scanner 2, one end of the scanner 2 is inserted into the opening 111, at which time one end of the scanner 2 is arranged opposite to the calibration plate 12. The scanning end (i.e., camera) of the scanner 2 corresponds to the calibration plate 12. Correspondingly, the drive mechanism 13 can move and rotate the calibration plate 12 according to the control signal provided by the main circuit board 14, thereby realizing the adjustment of the calibration plate 12, and the scanner 2 performs scanning analysis accordingly, thus ultimately achieving the calibration of the scanner 2.
[0039] Furthermore, when the scanner 2 is inserted into the opening 111, the second connector on the scanner 2 will connect and conduct with the first connector 151. At this time, the scanner 2 and the calibrator 1 are connected, that is, the electrical signal will be transmitted to the connector 15 and the main circuit board 14 through the scanner 2, thereby realizing the power supply and signal input of the calibrator 1 through the scanner 2. There is no need to separately realize the power supply and signal input of the calibrator 1 through the wire, which simplifies the connection of the entire three-dimensional scanning and avoids the problem of wire tangling during installation and use.
[0040] In other words, the three-dimensional scanning calibration system for the oral cavity provided by this utility model embodiment can not only calibrate the scanner 2, but also power the calibrator 1 and input signals through the scanner 2, thus ensuring the ease of use of the calibrator 1.
[0041] It should be noted that the electrical signal of scanner 2 can be provided by a computer. After calibration, scanner 2 will then send the calibrated data to the computer for processing and storage.
[0042] In this embodiment, the drive mechanism 13 includes a sliding seat 131, a lead screw 132, a nut 133, a lead screw motor 134, and a rotary stepper motor 135. The sliding seat 131 is slidably arranged in the inner cavity of the housing 11 along the direction of approaching or moving away from the opening 111. The lead screw motor 134 and the rotary stepper motor 135 are located on the sliding seat 131. The nut 133 is fixedly installed in the inner cavity of the housing 11. One end of the lead screw 132 is engaged with the nut 133, and the other end of the lead screw 132 is drivenly connected to the lead screw motor 134. The output shaft of the rotary stepper motor 135 is drivenly connected to the calibration plate 12.
[0043] In the above embodiment, the lead screw motor 134 can drive the lead screw 132 to rotate, and the lead screw 132 is threadedly engaged with the nut 133. Therefore, the rotation of the lead screw 132 can ultimately drive the lead screw motor 134 and the sliding seat 131 to perform linear motion, thereby causing the calibration plate 12 to move laterally in the X-axis direction. The rotary stepper motor 135 can directly drive the calibration plate 12 to rotate, realizing the angle adjustment of the calibration plate 12.
[0044] For example, the sliding frame has a U-shaped structure, and the lead screw motor 134 and the rotary stepper motor 135 are located in the opening 111 of the sliding seat 131.
[0045] Furthermore, the calibration instrument 1 also includes a base plate 16, which is fixed to the inner wall of the outer casing 11. A nut mounting seat 161 is provided on the base plate 16, and a nut 133 is inserted into the nut mounting seat 161. A sliding seat 131 is slidably arranged on the base plate 16. The base plate 16 can support the nut mounting seat 161 and the sliding seat 131, while the nut mounting seat 161 can support the nut 133.
[0046] For example, the base plate 16 has a slide rail 162, and the sliding seat 131 slides in conjunction with the slide rail 162, thereby achieving precise guidance for the sliding of the sliding seat 131 through the slide rail 162. The slide rail 162 extends along the X-axis direction.
[0047] In addition, the base plate 16 has two spaced brackets 163, and the two ends of the main circuit board 14 are respectively fixed on the corresponding brackets 163. The main circuit board 14 and the base plate 16 are arranged in parallel and spaced apart, so that the main circuit board 14 can be reliably supported by the two brackets 163.
[0048] For example, the slide seat 131 is located between the two supports 163.
[0049] In this embodiment, the calibrator 1 also includes two limit switches 17, which are located in the inner cavity of the housing 11, and the sliding seat 131 is located between the two limit switches 17 to trigger the limit switches 17. Each limit switch 17 is electrically connected to the main circuit board 14.
[0050] It is easy to understand that the sliding block 131 can trigger the corresponding limit switch 17 during the lateral movement, and the limit switch 17 will transmit the trigger signal to the main circuit board 14. The main circuit board 14 will then generate the corresponding control signal to control the lead screw motor 134 to stop, so that the sliding block 131 stops moving after moving to the target position.
[0051] For example, a latch 112 is inserted into one end of the housing 11, and the latch 112 is provided with an opening 111, thereby providing an opening 111 for inserting the scanner 2.
[0052] In one implementation of this utility model, a light source (not shown) is provided inside the scanner 2. The light source is used to illuminate the calibration plate 12, thereby facilitating the scanner 2 to take pictures and obtain images of different positions of the calibration plate 12 for internal parameter calibration of the scanner.
[0053] See also Figure 2An indicator light 113 is installed on the outer wall of the outer casing 11. The indicator light 113 is electrically connected to the main circuit board 14. By observing the indicator light 113, it can be determined whether the main circuit board 14 is powered normally, thereby determining whether the scanner 2 is properly connected and conducting with the calibrator 1.
[0054] In addition, the bottom surface of the outer wall of the outer casing 11 has a plurality of anti-slip pads 114 arranged at intervals, which play an anti-slip role for the calibrator 1.
[0055] For example, the number of anti-slip pads 114 can be four.
[0056] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A three-dimensional scanning calibration system for the oral cavity, characterized in that, The three-dimensional scanning calibration system includes a calibrator and a scanner; The calibrator includes a housing, a calibration plate, a drive mechanism, a main circuit board, and a connector. One end of the housing has an opening communicating with the inner cavity of the housing. The calibration plate, the drive mechanism, and the main circuit board are all located in the inner cavity of the housing. The calibration plate is arranged facing the opening. The drive mechanism is used to drive the calibration plate to rotate and move in a direction close to or away from the opening. The main circuit board is electrically connected to the drive mechanism and the connector, respectively. The connector is located in the opening and is provided with a first connector. One end of the scanner is movably inserted into the opening, and a second connector for insertion into the first connector is provided on one end of the scanner.
2. The three-dimensional scanning calibration system for the oral cavity according to claim 1, characterized in that, The drive mechanism includes a sliding seat, a lead screw, a nut, a lead screw motor, and a rotary stepper motor. The sliding seat is slidably arranged in the inner cavity of the housing along a direction close to or away from the opening. The lead screw motor and the rotary stepper motor are located on the sliding seat. The nut is fixedly installed in the inner cavity of the housing. One end of the lead screw is engaged with the nut, and the other end of the lead screw is drivenly connected to the lead screw motor. The output shaft of the rotary stepper motor is drivenly connected to the calibration plate.
3. A three-dimensional scanning calibration system for the oral cavity according to claim 2, characterized in that, The calibration instrument also includes a base plate, which is fixed to the inner wall of the outer casing. A nut mounting seat is provided on the base plate, and the nut is inserted into the nut mounting seat. The sliding seat is slidably arranged on the base plate.
4. A three-dimensional scanning calibration system for the oral cavity according to claim 3, characterized in that, The base plate has a slide rail, and the sliding seat slides in conjunction with the slide rail.
5. A three-dimensional scanning calibration system for the oral cavity according to claim 3, characterized in that, The base plate has two spaced brackets, and the two ends of the main circuit board are respectively fixed on the corresponding brackets, and the main circuit board is arranged parallel to and spaced apart from the base plate.
6. A three-dimensional scanning calibration system for the oral cavity according to claim 2, characterized in that, The calibrator also includes two limit switches, which are located in the inner cavity of the housing, and the sliding seat is located between the two limit switches to trigger the limit switches. Each limit switch is electrically connected to the main circuit board.
7. A three-dimensional scanning calibration system for the oral cavity according to claim 1, characterized in that, A buckle is inserted into one end of the outer casing, and the buckle has the opening.
8. A three-dimensional scanning calibration system for the oral cavity according to claim 1, characterized in that, The scanner is equipped with a light source, which is used to illuminate the calibration plate.
9. A three-dimensional scanning calibration system for the oral cavity according to any one of claims 1 to 8, characterized in that, An indicator light is inserted into the outer wall of the housing, and the indicator light is electrically connected to the main circuit board.
10. A three-dimensional scanning calibration system for the oral cavity according to any one of claims 1 to 8, characterized in that, The outer wall bottom surface of the housing has multiple anti-slip pads arranged at intervals.