Bone lamella thickness detection device and detection method

Abstract

The invention belongs to the technical field of medical instrument detection, and particularly discloses a bone lamella thickness detection device and method. The bone plate thickness detection device is used for detecting the thickness of the arc-shaped bone plate, the bone plate thickness detection device comprises a clamping assembly and a detection assembly, and the clamping assembly is used for fixing the bone plate. The detection assembly comprises a measurement part, the measurement part comprises a measurement driving part and two measurement heads, the measurement driving part is configured to drive the two measurement heads to be close to or away from each other, and one of the two opposite inner side faces of the two measurement heads is provided with an abutting block capable of making contact with the most concave position of the arc-shaped concave face of the bone plate. The detection efficiency and the detection precision of the bone plate can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical device detection, and particularly relates to a bone plate thickness detection device and a detection method. Background Art

[0002] As an orthopedic implant, the dimensional accuracy of a bone plate is crucial during fracture fixation and treatment, directly affecting the surgical outcome, the quality of bone healing, and the patient's recovery process. Therefore, after production, it is necessary to conduct quality inspections on various dimensions of the bone plate to ensure that the thickness of the bone plate leaving the factory meets the design requirements.

[0003] In the related art, the thickness of the bone plate is usually detected manually, with low detection efficiency and inaccurate detection results due to human factors. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, an embodiment of the present invention provides a bone plate thickness detection device, which can improve the detection efficiency and detection accuracy of the bone plate.

[0005] The present invention also provides a bone plate thickness detection method.

[0006] The bone plate thickness detection device according to the embodiment of the present invention is used to detect the thickness of an arc-shaped bone plate, and includes a clamping assembly and a detection assembly. The clamping assembly is used to fix the bone plate; the detection assembly includes a measuring component, and the measuring component includes a measuring driving member and two measuring heads. The measuring driving member is configured to drive the two measuring heads to approach or move away from each other. One of the two inner sides of the two measuring heads facing each other is provided with an abutting block that can contact the deepest position of the arc-shaped concave surface of the bone plate, and the other of the two inner sides of the two measuring heads facing each other is a plane, and this plane is perpendicular to the moving direction of the measuring head.

[0007] The bone plate thickness detection device in this embodiment can be used to detect both plate-shaped materials and arc-shaped materials. During specific detection, first, the bone plate is fixed by clamping it with the clamping component. The bone plate is located between the two measuring heads. When the bone plate is an arc-shaped material, the measuring driving component is controlled to drive the two measuring heads to approach each other until the contact block contacts the deepest position of the arc-shaped concave surface of the bone plate, and the inner side surface of the measuring head without the contact block fits the opposite surface of the arc-shaped concave surface. The thickness W1 of the bone plate can be obtained by measuring the initial distance S1 between the inner side surface of the measuring head without the contact block and the contact block and the sum of the moving distances of the two measuring heads, thus realizing the measurement of the arc-shaped material. When the bone plate is a plate-shaped material, the measuring driving component is controlled to drive the two measuring heads to approach each other until the inner side surface of the measuring head without the contact block fits one side surface of the bone plate and the contact block abuts against the other side surface of the bone plate. By measuring the initial distance S2 between the inner side surface of the measuring head without the contact block and the contact block and the sum of the moving distances of the two measuring heads Y2, the thickness W2 of the bone plate is obtained by subtracting Y2 from S2, thus realizing the measurement of the plate-shaped material. In summary, in this embodiment, the bone plate is fixed by the clamping component, and then the measuring driving component is used to drive the two measuring heads to move to measure the thickness of the bone plate, which is beneficial to improving the detection accuracy and detection efficiency.

[0008] In this embodiment, the contact block is configured to be in point contact or line contact with the arc-shaped concave surface of the bone plate; And / or, the detection component further includes a first moving component. The first moving component includes a first linear driving member, a second linear driving member, and a third linear driving member. The first linear driving member has an output end that can move along the Y axis; the second linear driving member is arranged at the output end of the first linear driving member, and the second linear driving member has an output end that can move along the X axis; the third linear driving member is arranged at the output end of the second linear driving member, and the third linear driving member has an output end that can move along the Z axis; the third linear driving member is configured to drive the measuring member to move along the Z axis, and the X axis, Y axis, and Z axis are mutually angled.

[0009] In this embodiment, the contact block includes a protruding side edge, and the side edge is parallel to the inner side surface of the other measuring head.

[0010] In this embodiment, the first linear driving member includes a first guide rail, a first slider, a first transmission mechanism, and a first driving motor. The first guide rail extends along the Y-axis direction. The first guide rail is provided with a first driving motor and a first transmission mechanism. The first driving motor is connected to the input end of the first transmission mechanism, and the output end of the first transmission mechanism is connected to the first slider. The first slider can be guided by the first guide rail to slide along the Y axis; The second linear driving member includes a second guide rail, a second slider, a second transmission mechanism, and a second driving motor. The second guide rail is disposed on the first slider and extends in the X-axis direction. The second guide rail is provided with the second driving motor and the second transmission mechanism. The second driving motor is connected to the input end of the second transmission mechanism, and the output end of the second transmission mechanism is connected to the second slider. The second slider can be guided by the second guide rail to slide along the X-axis; The third linear driving member includes a third guide rail, a third slider, a third transmission mechanism, and a third driving motor. The third guide rail is disposed on the second slider and extends in the Z-axis direction. The third guide rail is provided with the third driving motor and the third transmission mechanism. The third driving motor is connected to the input end of the third transmission mechanism, and the output end of the third transmission mechanism is connected to the third slider. The third slider can be guided by the second guide rail to slide along the Z-axis.

[0011] In this embodiment, the clamping assembly includes a fixing member, and the fixing member includes a clamping driving member and two jaws. The clamping driving member is used to control the two jaws to clamp the bone plate.

[0012] In this embodiment, the clamping assembly further includes a first positioning member disposed on the side of the clamping driving member to support the bone plate in the bone plate thickness direction; and / or, the clamping assembly further includes a second positioning member disposed on the side of the clamping driving member to abut against one end of the bone plate in the bone plate length direction.

[0013] In this embodiment, the clamping assembly further includes an adjusting member. The fixing member is disposed at the output end of the adjusting member, and the adjusting member is configured to adjust the angle of the fixing member to adjust the angle of the bone plate; and / or, the clamping assembly further includes a second moving member that drives the fixing member to move.

[0014] In this embodiment, the adjusting member includes a first rotation driving member and a second rotation driving member. The first rotation driving member has an output end that can rotate about the A axis; the second rotation driving member is disposed at the output end of the first rotation driving member, and the second rotation driving member has an output end that can rotate about the B axis perpendicular to the A axis. The fixing member is disposed at the output end of the second rotation driving member; And / or, the second moving part includes a fourth linear drive and a fifth linear drive. The fourth linear drive has an output end movable along the Y axis; the fifth linear drive is arranged at the output end of the fourth linear drive. The fifth linear drive has an output end movable along the X axis, and the fifth linear drive is configured to drive the fixed part to move along the X axis, and the X axis and the Y axis are at an angle to each other.

[0015] The bone plate thickness detection method implemented in the present invention uses the above detection device, and the detection method includes the following steps: fixing the bone plate to the clamping assembly and making the bone plate located at a preset position; setting a predetermined most concave position of the arc-shaped concave surface in the bone plate as the initial detection position; controlling the abutting block to be at the first original position on one side of the arc-shaped concave surface of the initial detection position of the bone plate, controlling the inner side surface of the measuring head without the abutting block to be at the second original position on one side of the arc-shaped convex surface of the initial detection position of the bone plate, and calculating the initial distance S between the first original position and the second original position; controlling the measuring head with the abutting block to abut against the most concave position of the initial detection position of the bone plate, controlling the inner side surface of the other measuring head to fit against the opposite surface of the arc-shaped concave surface of the bone plate, and obtaining the sum Y of the moving distances of the two measuring heads; calculating the thickness W of the bone plate = S - Y.

[0016] In this embodiment, when the measuring head with the abutting block abuts against the most concave position of the initial detection position of the bone plate, it further includes: the arc-shaped concave surface is a cylindrical surface, and the side edge of the abutting block abuts against the generatrix of the most concave position of the arc-shaped concave surface of the bone plate. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the bone plate thickness detection device from the first perspective in the first embodiment of the present invention.

[0018] Figure 2 is a perspective view of the measuring part in the first embodiment of the present invention.

[0019] Figure 3 is a schematic structural diagram of the bone plate thickness detection device from the second perspective in the first embodiment of the present invention.

[0020] Figure 4 is Figure 3 the enlarged view of I in

[0021] Figure 5 is a flowchart of the bone plate thickness detection method in the second embodiment of the present invention.

[0022] Figure 6 is a flowchart of the bone plate thickness detection method in the third embodiment of the present invention.

[0023] Reference Signs: 100. Bone plate 1. Clamping assembly; 11. Fixing component; 111. Clamping driving part; 112a. First jaw; 112b. Second jaw; 12. Adjusting component; 121. First rotating driving part; 1211. First power part; 1212. First mounting platform; 122. Second rotating driving part; 1221. Second power part; 1222. Second mounting platform; 13. Second moving component; 131. Fourth linear driving part; 132. Fifth linear driving part; 14. First positioning part; 15. Second positioning part 2. Detection assembly; 21. Measuring component; 211. Measuring driving part; 212a. First measuring head; 212b. Second measuring head; 213. Abutting block; 2131. Side edge; 22. First moving component; 221. First linear driving part; 222. Second linear driving part; 223. Third linear driving part Specific embodiments

[0024] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0025] Embodiment 1 In this embodiment, as shown in FIGS. Figure 1 and Figure 2 , the bone plate thickness detection device includes a clamping assembly 1 and a detection assembly 2. The clamping assembly 1 is used to fix the bone plate 100. The detection assembly 2 includes a measuring component 21. The measuring component 21 includes a measuring driving part 211, a first measuring head 212a and a second measuring head 212b. The measuring driving part 211 is configured to drive the first measuring head 212a and the second measuring head 212b to approach or separate from each other. An abutting block 213 that can contact the deepest position of the arc concave surface of the bone plate 100 is provided on one of the two inner sides of the first measuring head 212a and the second measuring head 212b that face each other. The other of the two inner sides of the first measuring head 212a and the second measuring head 212b that face each other is a plane, and this plane is perpendicular to the moving direction of the first measuring head 212a and the second measuring head 212b. In this embodiment, the abutting block 213 is provided on the first measuring head 212a, and the abutting block 213 is not provided on the second measuring head 212b.

[0026] During specific measurement, the measuring component 21 can perform multiple measurements along the length direction of the bone plate 100, and calculate the average value of the measurements to improve the accuracy of the measurement result of the thickness of the bone plate 100.

[0027] The plate shape of the bone plate 100 includes an arc-shaped material with an arc-shaped plate surface and a plate-shaped material with a flat plate surface. The bone plate thickness detection device in this embodiment can detect both the plate-shaped material and the arc-shaped material. During specific detection, first, the clamping component 1 clamps the bone plate 100 to fix the bone plate 100. The bone plate 100 is located between the first measuring head 212a and the second measuring head 212b. When the bone plate 100 is an arc-shaped material, the measurement driving member 211 is controlled to drive the first measuring head 212a and the second measuring head 212b to approach each other until the abutting block 213 contacts the deepest position of the arc-shaped concave surface of the bone plate 100 and the inner side surface of the second measuring head 212b fits against the opposite surface of the arc-shaped concave surface. The thickness W1 of the bone plate 100 can be obtained by measuring the initial distance S1 between the inner side surface of the second measuring head 212b and the abutting block 213 and the sum Y1 of the moving distances of the first measuring head 212a and the second measuring head 212b, and subtracting Y1 from S1, thus realizing the measurement of the arc-shaped material. When the bone plate 100 is a plate-shaped material, the measurement driving member 211 is controlled to drive the first measuring head 212a and the second measuring head 212b to approach each other until the inner side surface of the second measuring head 212b fits against one side surface of the bone plate 100 and the abutting block 213 abuts against the other side surface of the bone plate 100. The thickness W2 of the bone plate 100 can be obtained by measuring the initial distance S2 between the inner side surface of the second measuring head 212b and the abutting block 213 and the sum Y2 of the moving distances of the first measuring head 212a and the second measuring head 212b, and subtracting Y2 from S2, thus realizing the measurement of the plate-shaped material. In summary, in this embodiment, the clamping component 1 fixes the bone plate 100, and then the measurement driving member 211 drives the first measuring head 212a and the second measuring head 212b to move to measure the thickness of the bone plate 100, which is beneficial to improving the detection accuracy and detection efficiency.

[0028] The detection device of this embodiment includes a controller. The controller can be electrically connected to the clamping component 1 and the detection component 2, and can control the clamping component 1 to clamp the bone plate 100. It can also control the measurement driving member 211 of the measuring component 21 in the detection component 2 to drive the first measuring head 212a and the second measuring head 212b to approach or move away from each other, thereby realizing the automation of the detection process and improving the detection efficiency and detection consistency.

[0029] In this embodiment, the inner side surface of the second measuring head 212b is a plane, and this plane is perpendicular to the moving direction of the second measuring head 212b.

[0030] It can be understood that the inner side surface of the second measuring head 212b without the abutting block 213 is set as a plane. Since the plane is perpendicular to the moving direction of the second measuring head 212b, when the first measuring head 212a and the second measuring head 212b approach each other, the inner side surface of the second measuring head 212b can abut against the highest point of the convex surface of the arc-shaped bone plate 100, and the abutting block 213 can contact the deepest position of the arc-shaped concave surface of the bone plate 100. Therefore, through the cooperation of the plane of the inner side surface of the second measuring head 212b and the abutting block 213, the thickness of the bone plate 100 can be accurately measured.

[0031] In this embodiment, the abutting block 213 is configured to be in point contact or line contact with the arc-shaped concave surface of the bone plate 100.

[0032] It should be noted that when the abutting block 213 is in point contact with the arc-shaped concave surface of the bone plate 100, the specific measuring point of the arc-shaped concave surface can be accurately located through the abutting block 213, reducing the error caused by too large a contact surface. When the abutting block 213 is in line contact with the arc-shaped concave surface of the bone plate 100, the pressure can be evenly distributed within a large range, which is beneficial to improving the stability of the measurement result. Whether the abutting block 213 is in point contact or line contact with the bone plate 100, the abutting block 213 can contact the deepest position of the arc-shaped concave surface of the bone plate 100, and the specific contact method can be selected according to needs.

[0033] In this embodiment, as Figure 2 shown, the abutting block 213 includes a protruding side edge 2131, and the side edge 2131 is parallel to the inner side surface of the second measuring head 212b.

[0034] For example, the abutting block 213 can be a triangular prism structure. When installed, one side surface of the abutting block 213 is connected to the inner side surface of the first measuring head 212a, and an edge of the triangular prism facing away from the first measuring head 212a serves as the side edge 2131 in contact with the arc-shaped concave surface of the bone plate 100, and the side edge 2131 forms a line contact with the arc-shaped concave surface of the bone plate 100.

[0035] It should be noted that the side edge 2131 is parallel to the inner side surface of the second measuring head 212b. When both the side edge 2131 and the inner side surface of the second measuring head 212b contact the bone plate 100, the distance between the side edge 2131 and the inner side surface of the second measuring head 212b is the thickness of the bone plate 100, which is convenient for obtaining the measurement result. During measurement, a line contact can be formed with the bone plate 100 through the side edge 2131 to improve the accuracy of the measurement result.

[0036] In this embodiment, as Figure 1 and Figure 3As shown, the detection component 2 further includes a first moving member 22. The first moving member 22 includes a first linear drive member 221, a second linear drive member 222, and a third linear drive member 223. The first linear drive member 221 has an output end that can move along the Y-axis. The second linear drive member 222 is disposed at the output end of the first linear drive member 221 and has an output end that can move along the X-axis. The third linear drive member 223 is disposed at the output end of the second linear drive member 222 and has an output end that can move along the Z-axis; the third linear drive member 223 is configured to drive the measuring member 21 to move along the Z-axis, and the X-axis, Y-axis, and Z-axis are angled to each other. In this embodiment, the X-axis, Y-axis, and Z-axis are perpendicular to each other pairwise.

[0037] The controller is electrically connected to the first linear drive member 221, the second linear drive member 222, and the third linear drive member 223, and controls the output ends of the first linear drive member 221, the second linear drive member 222, and the third linear drive member 223 to move along the Y-axis, X-axis, and Z-axis directions respectively.

[0038] Specifically, the first linear drive member 221 is fixed to the base and can drive the second linear drive member 222 to move along the Y-axis. The second linear drive member 222 can drive the third linear drive member 223 and the measuring member 21 thereon to move along the Y-axis together. The second linear drive member 222 can drive the third linear drive member 223 to move along the X-axis, and the third linear drive member 223 drives the measuring member 21 thereon to move along the X-axis together. The third linear drive member 223 can drive the measuring member 21 to move along the Z-axis, so that the measuring member 21 can move in the Y-direction, X-direction, and Z-direction. Furthermore, the measuring member 21 can be accurately driven by the first moving member 22 to find the measurement position of the bone plate 100 clamped by the clamping component 1 for measurement.

[0039] In this embodiment, the first linear driving member 221 includes a first guide rail, a first slider, a first transmission mechanism, and a first driving motor. The first guide rail extends along the Y-axis direction. The first guide rail is provided with the first driving motor and the first transmission mechanism. The first driving motor is connected to the input end of the first transmission mechanism. The output end of the first transmission mechanism is connected to the first slider. The first slider can slide along the Y-axis under the guidance of the first guide rail. The second linear driving member 222 includes a second guide rail, a second slider, a second transmission mechanism, and a second driving motor. The second guide rail is arranged on the first slider. The second guide rail extends along the X-axis direction. The second guide rail is provided with the second driving motor and the second transmission mechanism. The second driving motor is connected to the input end of the second transmission mechanism. The output end of the second transmission mechanism is connected to the second slider. The second slider can slide along the X-axis under the guidance of the second guide rail. The third linear driving member 223 includes a third guide rail, a third slider, a third transmission mechanism, and a third driving motor. The third guide rail is arranged on the second slider. The third guide rail extends along the Z-axis direction. The third guide rail is provided with the third driving motor and the third transmission mechanism. The third driving motor is connected to the input end of the third transmission mechanism. The output end of the third transmission mechanism is connected to the third slider. The third slider can slide along the Z-axis under the guidance of the second guide rail.

[0040] Specifically, the first guide rail is arranged on the base. There are two first guide rails, and the two first guide rails are arranged in parallel at intervals. The first sliders are arranged on both of the two first guide rails. The second linear driving member 222 is connected to both of the two first sliders to form a stable support for the second linear driving member 222 through the two first sliders. For example, the first transmission mechanism may include a first linkage rod and a belt transmission mechanism. The input shafts of the belt transmission mechanisms on the two first guide rails are connected through the first linkage rod to make the belt transmission mechanisms on the two first guide rails operate synchronously. The first driving motor is connected to the input shaft of one of the belt transmission mechanisms. The specific structure, working principle of the belt transmission mechanism, and the connection manner of the belt transmission mechanism with the first guide rail, the first slider, and the first driving motor are all conventional prior arts and will not be elaborated here. When specifically setting, those skilled in the art can make adaptive adjustments according to needs and are not limited here. The first driving motor can be a servo motor, which is beneficial to accurately controlling the displacement of the first slider. The second transmission mechanism can be a belt transmission mechanism. The connection manner of the belt transmission mechanism with the second guide rail, the second slider, and the second driving motor is a conventional prior art and will not be elaborated here. The second driving motor can be a servo motor, which is beneficial to accurately controlling the displacement of the second slider. The third transmission mechanism can be a belt transmission mechanism. The connection manner of the belt transmission mechanism with the third guide rail, the third slider, and the third driving motor is a conventional prior art and will not be elaborated here.

[0041] When it is necessary to drive the measuring component 21 to move along the Y-axis, the first transmission mechanism is driven by the first driving motor. The first transmission mechanism can drive the first slider to move along the first guide rail, and the first slider can drive the measuring component 21 to move along the Y-axis through the second linear driving member 222 and the third linear driving member 223. When it is necessary to drive the measuring component 21 to move along the X-axis, the second transmission mechanism is driven by the second driving motor. The second transmission mechanism can drive the second slider to move along the second guide rail, and the second slider can drive the measuring component 21 to move along the X-axis through the third linear driving member 223. When it is necessary to drive the measuring component 21 to move along the Z-axis, the third transmission mechanism is driven by the third driving motor. The third transmission mechanism can drive the third slider to move along the third guide rail, and the third slider can drive the measuring component 21 to move along the Z-axis.

[0042] In this embodiment, as Figure 1 Figure 3 and Figure 4 shown, the clamping assembly 1 includes a fixing component 11. The fixing component 11 includes a clamping driving member 111, a first clamping jaw 112a, and a second clamping jaw 112b. The clamping driving member 111 is used to control the first clamping jaw 112a and the second clamping jaw 112b to clamp the bone plate 100.

[0043] For example, the clamping driving member 111 can be a cylinder. By driving the first clamping jaw 112a and the second clamping jaw 112b to open and close through the cylinder, the response speed can be improved and the structure of the fixing component 11 can be simplified; the clamping driving member 111 can also be a servo motor. Specifically, the clamping driving member 111 is electrically connected to the controller, and the controller controls the clamping driving member 111 to drive the first clamping jaw 112a and the second clamping jaw 112b to approach or move away from each other.

[0044] When it is necessary to fix the bone plate 100, the bone plate 100 is placed between the first clamping jaw 112a and the second clamping jaw 112b, and the clamping driving member 111 is used to drive the first clamping jaw 112a and the second clamping jaw 112b to approach each other, so as to clamp and fix the bone plate 100. When it is necessary to release the bone plate 100, it is only necessary to drive the first clamping jaw 112a and the second clamping jaw 112b to move away from each other through the clamping driving member 111.

[0045] In this embodiment, as Figure 3 and Figure 4 shown, the clamping assembly 1 further includes a first positioning member 14. The first positioning member 14 is arranged on the side of the clamping driving member 111 to support the bone plate 100 in the thickness direction of the bone plate 100.

[0046] For example, the first positioning member 14 includes two supporting plates which are respectively located on both sides of the fixing member 11 and are used to support the bone plate 100. Further, the supporting plates can be fixed on the second mounting platform 1222 of the adjusting member 12. Since the two supporting plates of the first positioning member 14 are respectively located on both sides of the fixing member 11, the two ends of the bone plate 100 are supported by the two supporting plates, and the bone plate 100 can be stably placed on the supporting plates. Thus, when the fixing member 11 clamps and fixes the bone plate 100, the bone plate 100 can be prevented from shaking and deflecting, which may otherwise cause inaccurate clamping of the bone plate 100 and affect the accuracy of the detection result.

[0047] The inner surfaces of the first clamping jaw 112a and the second clamping jaw 112b are parallel to each other, and the inner surfaces of the first clamping jaw 112a and the second clamping jaw 112b are perpendicular to the upper surface of the supporting plate. When the fixing member 11 clamps the bone plate 100, the bone plate 100 can be positioned from two mutually perpendicular directions perpendicular to the inner surfaces of the first clamping jaw 112a and the second clamping jaw 112b and perpendicular to the upper surface of the supporting plate, which can ensure the positioning accuracy and stability.

[0048] It can be understood that when the fixing member 11 fixes the bone plate 100, it is impossible to accurately position the bone plate 100. By providing the first positioning member 14 to cooperate with the fixing member 11 to position the bone plate 100, the positioning accuracy of the bone plate 100 can be improved, which is beneficial to improving the reliability of the thickness detection result of the bone plate 100.

[0049] In this embodiment, as Figure 3 and Figure 4 shown, the clamping assembly 1 further includes a second positioning member 15 which is arranged on the side of the clamping driving member 111 to abut against one end of the bone plate 100 in the length direction of the bone plate 100.

[0050] For example, the second positioning member 15 includes a positioning plate which is arranged on the side of the clamping driving member 111. Specifically, the positioning plate can be fixed at the output end of the adjusting member 12. Further, the positioning plate can be fixed on the second mounting platform 1222. The positioning plate is arranged in the vertical direction and is parallel to the supporting plate.

[0051] It can be understood that by providing the second positioning member 15 and abutting one end of the bone plate 100 in its length direction against the second positioning member 15, the length direction of the bone plate 100 can be positioned by the second positioning member 15. In addition, the second positioning member 15 can also be a structure with adjustable position in the length direction of the bone plate 100. The position of the positioning plate is adjustable, which can adjust the position where the first clamping jaw 112a and the second clamping jaw 112b clamp the bone plate 100, and can clamp the bone plate 100 more flexibly to facilitate thickness measurement of a specific position of the bone plate 100.

[0052] In this embodiment, as Figure 1 andFigure 2 As shown, the clamping assembly 1 further includes an adjusting member 12. The fixing member 11 is disposed at the output end of the adjusting member 12. The adjusting member 12 is configured to adjust the angle of the fixing member 11 to adjust the angle of the bone plate 100.

[0053] For example, in the length direction of the bone plate 100, some bone plates 100 are bent to a certain extent, which is not convenient for the measuring member 21 to measure the thickness of the bone plate 100. By providing the adjusting member 12, the angle of the bone plate 100 fixed by the fixing member 11 can be adjusted, so that the bone plate 100 can be adjusted to an angle convenient for the measuring member 21 to measure. The controller is electrically connected to the adjusting member 12 to control the adjusting member 12 to adjust the angle of the fixing member 11.

[0054] In this embodiment, as Figure 1 and Figure 3 shown, the adjusting member 12 includes a first rotation driving member 121 and a second rotation driving member 122. The first rotation driving member 121 has an output end that can rotate around the A axis. The second rotation driving member 122 is disposed at the output end of the first rotation driving member 121. The second rotation driving member 122 has an output end that can rotate around the B axis perpendicular to the A axis. The fixing member 11 is disposed at the output end of the second rotation driving member 122.

[0055] Specifically, as Figure 3 and Figure 4 shown, the first rotation driving member 121 includes a first power member 1211 and a first mounting table 1212. The first mounting table 1212 is disposed at the output end of the first power member 1211. The second rotation driving member 122 includes a second power member 1221 and a second mounting table 1222. The second power member 1221 is disposed on the first mounting table 1212. Providing the first mounting table 1212 facilitates the installation of the second power member 1221. The second mounting table 1222 is disposed at the output end of the second power member 1221. The fixing member 11 is disposed on the second mounting table 1222. Providing the second mounting table 1222 facilitates the installation of the fixing member 11. For example, both the first power member 1211 and the second power member 1221 can be servo motors, and the angle of the bone plate 100 fixed by the fixing member 11 can be accurately adjusted through the servo motors.

[0056] It can be understood that the second rotation driving member 122 is disposed at the output end of the first rotation driving member 121. The first rotation driving member 121 can drive the second rotation driving member 122 and the fixing member 11 on the second rotation driving member 122 to rotate around the A axis. The second rotation driving member 122 can drive the fixing member 11 to rotate around the B axis perpendicular to the A axis, so that the bone plate 100 clamped by the fixing member can rotate around the A axis and the B axis, and further the bone plate 100 can be adjusted in different orientations, which is convenient for measuring the bone plate 100.

[0057] In this embodiment, as Figure 1 and Figure 3 shown, the clamping assembly 1 further includes a second moving member 13, and the second moving member 13 drives the fixing member 11 to move.

[0058] The fixing member 11 can be directly disposed at the output end of the second moving member 13. In addition, the fixing member 11 can also be disposed at the output end of the adjusting member 12, and the adjusting member 12 is disposed at the output end of the second moving member 13. The above two fixing methods of the fixing member 11 can both achieve moving under the drive of the second moving member 13. The controller is electrically connected to the second moving member 13 to control the second moving member 13 to drive the fixing member 11 to move, so as to drive the bone plate 100 fixed by the fixing member 11 to move through the fixing member 11.

[0059] It can be understood that by setting the second moving member 13 to drive the fixing member 11 to move, the fixing member 11 can be moved to the loading position for installing the bone plate 100, which is convenient for the operator to operate. When measuring the bone plate 100, the second moving member 13 can drive the bone plate 100 fixed by the fixing member 11 to move to the detection position through the fixing member 11, so as to facilitate the measuring member 21 to measure the bone plate 100.

[0060] In this embodiment, as Figure 3 shown, the second moving member 13 includes a fourth linear driving member 131 and a fifth linear driving member 132. The fourth linear driving member 131 has an output end that can move along the Y-axis. The fifth linear driving member 132 is disposed at the output end of the fourth linear driving member 131, and the fifth linear driving member 132 has an output end that can move along the X-axis. Under the cooperation of the fourth linear driving member 131 and the fifth linear driving member 132, the fixing member 11 can be driven by the second moving member 13 to move along the X-axis and the Y-axis within a certain range.

[0061] For example, as Figure 3As shown, the fourth linear driving member 131 includes a fourth guide rail, a fourth slider, a fourth transmission mechanism, and a fourth driving motor. The fourth guide rail extends along the Y direction. The fourth guide rail is provided with a fourth driving motor and a fourth transmission mechanism. The fourth driving motor is connected to the input end of the fourth transmission mechanism, and the output end of the fourth transmission mechanism is connected to the fourth slider. The fourth slider can be guided by the fourth guide rail to slide along the Y axis. Two fourth guide rails are arranged in parallel at intervals, and a fourth slider is arranged on each fourth guide rail. The fifth linear driving member 132 is connected to both fourth sliders, so as to stably support the fifth driving member through the fourth guide rail. The fourth driving motor can be a servo motor, which is beneficial to accurately move the fixing member 11 along the Y axis by the fourth driving motor. The fourth transmission mechanism can include a second linkage rod and a belt transmission mechanism. The input shafts of the belt transmission mechanisms on the two fourth guide rails are connected by the second linkage rod, so that the belt transmission mechanisms on the two fourth guide rails operate synchronously. The fourth driving motor is connected to the input shaft of one of the belt transmission mechanisms. The specific structure and working principle of the belt transmission mechanism are conventional prior arts, and their specific setting methods will not be elaborated here. When it is necessary to drive the fixing member 11 to move along the Y axis, the fourth driving motor is used to drive the fourth transmission mechanism to operate. The fourth transmission mechanism can drive the fourth slider to move along the fourth guide rail, and the fourth slider can drive the fixing member 11 to move along the Y axis through the fifth linear driving member 132.

[0062] As Figure 3 shown, the fifth linear driving member 132 includes a fifth guide rail, a fifth slider, a fifth transmission mechanism, and a fifth driving motor. The fifth guide rail extends along the X direction. The fifth guide rail is provided with a fifth driving motor and a fifth transmission mechanism. The fifth driving motor is connected to the input end of the fifth transmission mechanism, and the output end of the fifth transmission mechanism is connected to the fifth slider. The fifth slider can be guided by the fifth guide rail to slide along the X axis. The fifth driving motor can be a servo motor, which is beneficial to accurately move the fixing member 11 along the X axis by the fifth driving motor. The fifth transmission mechanism can be a belt transmission mechanism. The specific structure and working principle of the belt transmission mechanism are conventional prior arts, and their specific setting methods will not be elaborated here. When it is necessary to drive the fixing member 11 to move along the X axis, the fifth driving motor is used to drive the fifth transmission mechanism to operate. The fifth transmission mechanism can drive the fifth slider to move along the fifth guide rail, and the fifth slider can drive the fixing member 11 to move along the X axis.

[0063] In this embodiment, the fourth linear driving member 131 can drive the fifth linear driving member 132 to move along the Y axis, so that the fifth linear driving member 132 can drive the fixing member 11 to move along the Y axis. The fifth linear driving member 132 can drive the fixing member 11 to move along the X axis, so that the fixing member 11 can move in the Y direction and the X direction, which is convenient for loading or unloading the bone plate 100, and is also convenient for the measuring member 21 to measure the bone plate 100 fixed by the fixing member 11.

[0064] Example 2 For the bone plate 100 thickness detection method in this embodiment, the above detection device is adopted, as Figure 5 shown, the detection method includes the following steps: S210, fix the bone plate 100 to the clamping assembly 1 and make the bone plate 100 located at a preset position.

[0065] The controller presets the position of the bone plate 100 to facilitate the detection by the detection assembly 2.

[0066] S220, set a predetermined most concave position in the arc-shaped concave surface of the bone plate 100 as the initial detection position.

[0067] Specifically, the controller sets the initial detection position of the bone plate 100. The controller determines the coordinates of the initial detection position according to the preset position of the bone plate 100 and the specifications such as the length, width and thickness of the product.

[0068] S230, control the abutting block 213 to be located at the first original position on the side of the arc-shaped concave surface of the initial detection position of the bone plate 100, control the inner side surface of the second measuring head 212b to be located at the second original position on the side of the arc-shaped convex surface of the initial detection position of the bone plate 100, and calculate the initial distance S between the first original position and the second original position.

[0069] Specifically, the controller sets the first original position of the abutting block 213 and the second original position of the inner side surface of the second measuring head 212b, and controls the abutting block 213 and the inner side surface of the second measuring head 212b to be located at the first original position and the second original position respectively before detection. At the same time, the controller calculates the initial distance S according to the first original position and the second original position.

[0070] S240, control the first measuring head 212a with the abutting block 213 to abut against the most concave position of the initial detection position of the bone plate 100, and the inner side surface of the second measuring head 212b to fit against the opposite surface of the arc-shaped concave surface of the bone plate 100, and obtain the sum Y of the moving distances of the first measuring head 212a and the second measuring head 212b.

[0071] The abutting block 213 abuts against the most concave position of the bone plate 100, and the second measuring head 212b abuts against the opposite surface of the arc-shaped concave surface of the bone plate 100. Then the distance between the abutting block 213 and the inner side surface of the second measuring head 212b is the thickness of the bone plate 100.

[0072] S250, calculate the thickness W of the bone plate 100 = S - Y.

[0073] Example 3 As Figure 6As shown in the figure, the method for detecting the thickness of the bone plate 100 in this embodiment includes the following steps: S310, Place the bone plate 100 on the pallet, abut one end of the bone plate 100 against the positioning plate, and clamp the two sides of the bone plate 100 with the first jaw 112a and the second jaw 112b.

[0074] S320, Control the adjusting member 12 and the second moving member 13 to move the bone plate to a preset position.

[0075] Specifically, the controller controls the adjusting member 12 and the second moving member 13 to move, so that one of the first jaw 112a and the second jaw 112b is located at the lateral zero position of the bone plate 100, and the second positioning member 15 is located at the longitudinal zero position of the bone plate 100. The controller sets the movement of the adjusting member 12, and sets the upper surface of the pallet as the vertical zero position. After defining the position of the bone plate 100, it is convenient for the detection assembly 2 to find the position of the bone plate 100.

[0076] S330, Set a predetermined most concave position of the arc-shaped concave surface in the bone plate 100 as the initial detection position.

[0077] Specifically, the calculation module receives the product code input by the display screen. The controller retrieves the product specifications in the storage module according to the product code, that is, the length dimension, width dimension and thickness dimension. According to the product specifications, the coordinates of the initial detection position can be set. For example, if the middle of the bone plate 100 in the width direction is the most concave position of the arc-shaped concave surface of the bone plate 100, then the horizontal coordinate of the initial detection position is 1 / 2 of the width of the bone plate 100, and the vertical coordinate of the initial detection position can be selected and set according to the length of the bone plate 100, which is not limited here. After the controller obtains the initial detection position of the bone plate 100, it can determine the coordinate position that the abutting block 213 in the measuring member 21 needs to move to when detecting according to this initial detection position, so as to realize the accurate detection of the bone plate 100. Otherwise, when detecting the arc-shaped bone plate, if the coordinates of the abutting block 213 during detection do not correspond to 1 / 2 of the width of the bone plate 100, then it will cause the abutting block 213 not to abut against the most concave position of the bone plate 100 during detection, and the inner side surface of the second measuring head 212b still contacts the highest point of the convex surface of the bone plate 100, then the distance between the abutting block 213 and the inner side surface of the second measuring head 212b is greater than the actual thickness of the bone plate 100.

[0078] S340, Control the abutting block 213 to be at the first original position on the arc-shaped concave surface side of the initial detection position of the bone plate 100, control the inner side surface of the second measuring head 212b to be at the second original position on the arc-shaped convex surface side of the initial detection position of the bone plate 100, and calculate the initial distance S between the first original position and the second original position.

[0079] Based on the coordinates of the bone plate 100 and the product specifications of the bone plate 100, the distances from the first original position and the second original position to the middle position in the thickness direction of the bone plate 100 are set to be basically the same, so that the inner side surfaces of the abutting block 213 and the second measuring head 212b can basically contact the concave surface and the convex surface of the bone plate 100 simultaneously, thereby avoiding damage to the bone plate 100 caused by non-simultaneous contact and resulting in inaccurate measurement.

[0080] S350, control the abutting block 213 to abut against the deepest position of the initial detection position of the bone plate 100, and control the inner side surface of the second measuring head 212b to fit against the opposite surface of the arc-shaped concave surface of the bone plate 100. When the force exerted by the abutting block 213 and the second measuring head 212b on the bone plate 100 reaches the preset external force value, control the first measuring head 212a and the second measuring head 212b to stop moving, and obtain the sum Y of the moving distances of the inner side surfaces of the abutting block 213 and the second measuring head 212b.

[0081] Specifically, the controller sets the preset external force value of the abutting block 213. When the controller determines that the external force received by the abutting block 213 reaches the preset external force value, it controls the first power component to stop driving the first measuring head 212a and the second measuring head 212b from continuing to move, so as to keep the abutting block 213 in contact with the deepest position of the bone plate 100 and not continue to move, avoiding damage to the bone plate 100. At the same time, the controller controls the displacement sensors of the first measuring head 212a and the second measuring head 212b to detect the sum Y of the moving distances of the inner side surfaces of the abutting block 213 and the second measuring head 212b.

[0082] In addition, the arc-shaped concave surface of the bone plate 100 can be a cylindrical surface. Generally, when it is a cylindrical surface, the generatrix is arranged along the length direction of the bone plate 100. During processing, the deepest position is located at the 1 / 2 of the width of the bone plate 100. Therefore, according to the characteristics of the bone plate 100, the side edge of the abutting block 213 abuts against the generatrix of the deepest position of the arc-shaped concave surface of the bone plate 100. When the deepest position is at the 1 / 2 of the width of the bone plate 100, the abutting block 213 should measure at the corresponding 1 / 2 of the width of the bone plate 100.

[0083] It can be understood that when the arc-shaped concave surface of the bone plate 100 is a cylindrical surface, the extending direction of the generatrix of the deepest position of the arc-shaped concave surface of the bone plate 100 is the extending direction of the deepest position. By abutting the side edge 2131 against the generatrix of the deepest position of the arc-shaped concave surface of the bone plate 100, the side edge 2131 can always contact the deepest position of the arc-shaped concave surface, which is beneficial to improving the accuracy of the detection result.

[0084] When the deepest position is at other positions of the bone plate 100, the controller controls the abutting block 213 to move to the corresponding position for measurement according to the specification parameters of the bone plate 100, etc.

[0085] S370, calculate the thickness W of the bone plate 100 as W = S - Y.

[0086] S380, control the abutting block 213 and the inner side surface of the second measuring head 212b to return to the first original position and the second original position respectively, and control the first moving member 22 to drive the measuring member 21 to move along the length direction of the bone plate 100 to perform multiple measurements outside the initial detection position of the bone plate 100, and take the average value of the results of the multiple measurements.

[0087] Since the arc-shaped concave surface of the bone plate 100 can be a cylindrical surface, and generally the generatrix of the cylindrical surface is arranged along the length direction of the bone plate 100, therefore, more accurate results can be obtained by taking the average value of multiple measurements in the length direction. Of course, when the deepest position of the arc-shaped concave surface is not in the length direction, the controller can select the detection position according to the specification parameters of the bone plate 100.

[0088] In the description of the present invention, 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. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0089] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0090] In the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0091] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0092] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0093] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A bone plate thickness detection device, characterized in that: include: A clamping assembly, wherein the clamping assembly is used to fix the bone plate; A detection component, wherein the detection component includes a measuring part, and the measuring part includes a measuring drive and two measuring heads. The measuring drive is configured to drive the two measuring heads to move closer to or farther from each other, one of the two inner side surfaces opposite to each other of the two measuring heads is provided with an abutment block that can contact the most concave position of the arc-shaped concave surface of the bone plate, and the other of the two inner side surfaces opposite to each other of the two measuring heads is a plane that is perpendicular to the moving direction of the measuring heads.

2. The bone plate thickness detection device according to claim 1, characterized in that: The abutment block is configured to be in point contact or line contact with the arc-shaped concave surface of the bone plate; And / or, the detection component also includes a first movable component, the first movable component includes a first linear drive, a second linear drive and a third linear drive, the first linear drive has an output end movable along the Y axis; the second linear drive is arranged at the output end of the first linear drive, the second linear drive has an output end movable along the X axis; the third linear drive is arranged at the output end of the second linear drive, the third linear drive has an output end movable along the Z axis; the third linear drive is configured to drive the measuring component to move along the Z axis, and the X axis, Y axis and Z axis form angles with each other.

3. The bone plate thickness detection device according to claim 2, characterized in that: The abutment block comprises a raised side edge, and the side edge is parallel to the inner side surface of the other measuring head.

4. The bone plate thickness detection device according to claim 2, characterized in that: The first linear drive member includes a first guide rail, a first slider, a first transmission mechanism and a first drive motor, wherein the first guide rail extends along the Y-axis direction, the first guide rail is provided with a first drive motor and a first transmission mechanism, the first drive motor is connected to an input end of the first transmission mechanism, and an output end of the first transmission mechanism is connected to the first slider, and the first slider can be guided by the first guide rail to slide along the Y-axis; The second linear drive member includes a second guide rail, a second slider, a second transmission mechanism, and a second drive motor, wherein the second guide rail is arranged on the first slider, the second guide rail extends along the X-axis direction, the second guide rail is provided with a second drive motor and a second transmission mechanism, the second drive motor is connected to the input end of the second transmission mechanism, the output end of the second transmission mechanism is connected to the second slider, and the second slider can be guided by the second guide rail to slide along the X-axis; The third linear drive component includes a third guide rail, a third slider, a third transmission mechanism and a third drive motor. The third guide rail is arranged on the second slider. The third guide rail extends along the Z-axis direction. The third guide rail is provided with a third drive motor and a third transmission mechanism. The third drive motor is connected to the input end of the third transmission mechanism. The output end of the third transmission mechanism is connected to the third slider. The third slider can be guided by the second guide rail to slide along the Z-axis.

5. The bone plate thickness detection device according to claim 1, characterized in that: The clamping assembly comprises a fixing component, and the fixing component comprises a clamping driving component and two clamping jaws. The clamping driving component is used to control the two clamping jaws to clamp the bone plate.

6. The bone plate thickness detection device according to claim 5, characterized in that: The clamping assembly further comprises a first positioning member, which is arranged on a side of the clamping driving member to support the bone plate in a thickness direction of the bone plate; And / or, the clamping assembly further includes a second positioning member, which is disposed on a side of the clamping drive member to abut against one end of the bone plate in the length direction of the bone plate.

7. The bone plate thickness detection device according to claim 5, characterized in that: The clamping assembly further comprises an adjusting component, the fixing component is arranged at an output end of the adjusting component, and the adjusting component is configured to adjust an angle of the fixing component to adjust an angle of the bone plate; And / or, the clamping assembly further includes a second moving component, and the second moving component drives the fixed component to move.

8. The bone plate thickness detection device according to claim 7, characterized in that: The adjusting component comprises: A first rotary drive member having an output end rotatable about an A axis; a second rotary driving member, the second rotary driving member being arranged at an output end of the first rotary driving member, the second rotary driving member having an output end rotatable about a B axis perpendicular to the A axis, and the fixing component being arranged at the output end of the second rotary driving member; And / or, the second movable component includes a fourth linear drive component and a fifth linear drive component, the fourth linear drive component has an output end movable along the Y-axis; the fifth linear drive component is arranged at the output end of the fourth linear drive component, the fifth linear drive component has an output end movable along the X-axis, and the fifth linear drive component is configured to drive the fixed component to move along the X-axis, and the X-axis and the Y-axis form an angle with each other.

9. A bone plate thickness detection method, characterized in that: Using the detection device according to any one of claims 1 to 8, the detection method comprises the following steps: Fixing the bone plate to the clamping assembly and positioning the bone plate at a preset position; Setting a predetermined most concave position of the arc-shaped concave surface in the bone plate as an initial detection position; Controlling the abutment block to be located at a first original position on one side of the arc-shaped concave surface of the initial detection position of the bone plate, controlling the inner side surface of the measuring head without the abutment block to be located at a second original position on one side of the arc-shaped convex surface of the initial detection position of the bone plate, and calculating an initial spacing S between the first original position and the second original position; Control the measuring head with the abutment block to abut the most concave position of the initial detection position of the bone plate, control the inner side surface of the other measuring head to fit with the opposite side of the arc-shaped concave surface of the bone plate, and obtain the sum Y of the moving distances of the two measuring heads; The thickness of the bone plate is calculated as W=SY.

10. The bone plate thickness detection method according to claim 9, characterized in that: The measuring head having the abutment block abuts against the most concave position of the initial detection position of the bone plate, and further comprises: The arc-shaped concave surface is a cylindrical surface, and the side edge of the abutment block abuts against the generatrix of the most concave position of the arc-shaped concave surface of the bone plate.

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