3D printing orthopedic limb scanning and sampling device and scanning method thereof

Abstract

The invention relates to the technical field of 3D printing scanning and sampling, and discloses a 3D printing orthopedic limb scanning and sampling device which comprises a supporting table, a supporting mechanism and a scanning mechanism are arranged above the supporting table, and the supporting mechanism is located below the scanning mechanism; the supporting mechanism comprises an adjusting part and a supporting part. The distance between the two connecting plates can be adjusted through the supporting mechanism and the adjusting part, limbs of different lengths can be conveniently supported, the limbs of different shapes can be clamped and fixed through the supporting part, the phenomenon that the limbs of a person are tired and shaken in the scanning process due to the fact that a suspension is in the air during limb scanning is avoided, the scanning precision is improved, and the working efficiency is improved. Meanwhile, the application range of the 3D printing orthopedic limb scanning and sampling device is widened; the clamping plates are arranged to be arc-shaped, so that the limbs can be clamped and fixed more conveniently, and the scanning effect is improved; and through sponge pads, the situation that the limbs are injured due to continuous extrusion force of the clamping plates is prevented, and protection on the limbs is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing scanning sampling, and in particular to a 3D printing orthopedic limb scanning sampling device and a scanning method thereof. Background Art

[0002] The birth of 3D printers has important significance for many fields of human beings. 3D printing is usually achieved by using digital technology material printers. It is often used to make models in the fields of mold manufacturing, industrial design, etc., and then gradually used for the direct manufacturing of some products. There are already parts printed using this technology. This technology is used in jewelry, footwear, industrial design, architecture, engineering and construction (AEC), automobiles, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firearms and other fields. Before existing orthopedic surgery or limb replacement, a 3D printed orthopedic limb scanning sampling device is required to take samples from patients.

[0003] In order to solve the problems of 3D printing orthopedic limb scanning sampling and scanning method, a Chinese patent has published a 3D printing orthopedic limb scanning sampling device, with the publication number CN106073789B, comprising a sampling device body, and an operation interface is provided on the side surface of the sampling device body. The structure of the present invention is provided with a telescopic adjustment mechanism on the sampling device body, and the transmission pipeline is connected by the telescopic adjustment of the telescopic adjustment mechanism itself. The sampling distance of the sampling mechanism is adjusted by connecting the transmission pipeline with the sampling mechanism. The first driving component and the second driving component are provided at the connection between the transmission pipeline and the sampling mechanism, so that the sampling mechanism can better sample limbs of different shapes, saving time. At the same time, the scanning device provided in the sampling mechanism is cooperated with, and the linear motor provided at the upper end of the scanning device is used to realize the movement of the scanning device, thereby realizing the need for sampling different parts. The whole device realizes comprehensive functions and a wide scanning sampling range, which well meets the needs of the prior art.

[0004] The existing device uses the first drive component and the second drive component, so that the sampling mechanism can better sample limbs of different shapes, saving time; However, the existing device still has the following problems: when sampling the limbs, the existing device does not have a supporting structure, and the limbs are suspended in the air during scanning, which will cause the limbs of the person to shake during the scanning process, affecting the scanning effect. Therefore, a 3D printed orthopedic limb scanning sampling device and a scanning method thereof are proposed. Summary of the invention

[0005] The object of the present invention is to provide a 3D printing orthopedic limb scanning sampling device and a scanning method thereof to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A 3D printing orthopedic limb scanning sampling device, comprising a support table, a support mechanism and a scanning mechanism are arranged above the support table, and the support mechanism is located below the scanning mechanism; The supporting mechanism comprises an adjusting portion and a supporting portion; The adjusting portion is located at the rear side of the supporting portion; The support part includes a connecting plate, a first L-shaped plate, a first cylinder, a clamping plate and a sponge pad. The connecting plate, the first L-shaped plate, the first cylinder, the clamping plate and the sponge pad are symmetrically arranged in two. The support part can clamp and fix limbs of different shapes to avoid the phenomenon that the limbs of the person are tired and shaken during the scanning process when the limbs are suspended in the air during scanning. The sponge pad can prevent the continuous squeezing force of the clamping plate from causing damage to the limbs, thereby improving the protection of the limbs; The adjusting part includes a first motor, a double-headed threaded rod, a slider and a first sliding rod. Two sliders are symmetrically arranged. A cavity is opened through the inside of the support platform. The two sliders are both located inside the cavity. The adjusting part can adjust the distance between the two connecting plates to facilitate the support of limbs of different lengths.

[0007] Preferably, the left side of the first motor is fixedly connected to the right side of the support platform, the left end face of the output rod of the first motor passes through the right side of the support platform and extends into the cavity, the left end face of the output rod of the first motor is fixedly connected to the right end face of the double-headed threaded rod, and the first motor provides power for the rotation of the double-headed threaded rod.

[0008] Preferably, the left end face thread of the double-headed threaded rod passes through the right side faces of the two sliders and extends to the left sides of the two sliders. The left end face of the double-headed threaded rod is rotatably connected to the inner wall of the cavity through the first bearing seat. The two side faces of the sliders are slidably connected to the inner wall of the cavity. A sliding groove is provided on the front side of the support platform. The front end faces of the two sliders slide through the inner wall of the cavity and the inner wall of the sliding groove and extend to the front side of the support platform. The left end face of the first slide rod slides through the right side faces of the two sliders and extends to the left side of the slider. The left and right end faces of the first slide rod are respectively fixedly connected to the left and right side faces inside the cavity. The first slide rod limits the slider, and the sliders approach each other and drive the connected connecting plates to move relative to each other.

[0009] Preferably, the front end surfaces of the two sliding blocks are fixedly connected to the rear side surfaces of the two connecting plates, the top surfaces of the two connecting plates are respectively fixedly connected to the bottom surfaces of the two first L-shaped plates, the bottom surface of the first cylinder is fixedly connected to the top surface of the first L-shaped plate, the bottom end surface of the first cylinder output rod passes through the top surface of the first L-shaped plate and extends to the inner side of the first L-shaped plate, the bottom end surface of the first cylinder output rod is fixedly connected to the top surface of the clamping plate, the clamping plate is arranged in an arc shape, the bottom surface of the clamping plate is fixedly connected to the top surface of the sponge pad, and the sponge pad is used to prevent the continuous squeezing force of the clamping plate from causing damage to the limbs.

[0010] Preferably, the scanning mechanism comprises a moving part and a scanning part; The moving part is located above the scanning part; The moving part comprises a second L-shaped plate, a connecting frame, a second motor, a reciprocating threaded rod, a moving block and a second sliding rod, and the bottom surface of the second L-shaped plate is fixedly connected to the top surface of the support platform; The scanning part includes a second cylinder and a scanning head. The bottom end surface of the output rod of the second cylinder is fixedly connected to the top surface of the scanning head. The output rod of the second cylinder extends to drive the scanning head to rise and fall, so that the scanning head can get closer to the limb for sampling. The moving part drives the scanning part to move, thereby realizing the need to sample different parts.

[0011] Preferably, the top surface of the connecting frame is fixedly connected to the inner top surface of the second L-shaped plate, the left side surface of the second motor is fixedly connected to the right side surface of the connecting frame, the models of the first motor and the second motor are HG-JR353K, the left end surface of the output rod of the second motor passes through the right side surface of the connecting frame and extends to the inner side of the connecting frame, the left end surface of the output rod of the second motor is fixedly connected to the right end surface of the reciprocating threaded rod, the left end surface thread of the reciprocating threaded rod passes through the right side surface of the moving block and extends to the left side of the moving block, the left end surface of the reciprocating threaded rod is rotatably connected to the inner side surface of the connecting frame through the second bearing seat, and the rotation of the reciprocating threaded rod drives the moving block to move.

[0012] Preferably, the left end face of the second sliding rod slides through the right side face of the moving block and extends to the left side of the moving block. The left and right end faces of the second sliding rod are respectively fixedly connected to the left and right inner sides of the connecting frame. The bottom face of the moving block is fixedly connected to the top face of the second cylinder. The second sliding rod limits the moving block to prevent the moving block from rotating as the reciprocating threaded rod rotates.

[0013] A scanning method for a 3D printed orthopedic limb scanning sampling device, comprising the following steps: S1. Place the person's limbs on the connecting plate; S2. Adjust the positions of the two connecting plates according to the different lengths of limbs to support limbs of different lengths; S3, controlling the first cylinder to adjust the height of the clamping plate, so that the clamping plate clamps and fixes limbs of different shapes on the connecting plate; S4, controlling the second cylinder, the second cylinder drives the scanning head to move downward close to the limb to scan and sample; S5. Turn on the second motor to drive the scanning head to move left and right to perform a comprehensive scanning and sampling of the limb.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the 3D printed orthopedic limb scanning sampling device and the scanning method thereof, through the support mechanism, the adjustment part can adjust the distance between the two connecting plates, so as to facilitate the support of limbs of different lengths, and the support part can clamp and fix limbs of different shapes, so as to avoid the phenomenon that the limbs are suspended in the air during scanning, causing the limbs of the person to be tired and shake during the scanning process, thereby improving the accuracy of scanning and improving the use range of the 3D printed orthopedic limb scanning sampling device; by setting the clamping plate to an arc shape, it is more convenient to clamp and fix the limbs, thereby improving the scanning effect; by using the sponge pad, it is prevented that the continuous squeezing force of the clamping plate causes damage to the limbs, thereby improving the protection of the limbs; through the scanning mechanism, the second cylinder output rod is extended to drive the scanning head to rise and fall, so that the scanning head can be closer to the limbs for sampling, and the moving part drives the scanning part to move, thereby realizing the demand for sampling different parts, improving the scanning sampling range of the 3D printed orthopedic limb scanning sampling device, and well meeting the needs of the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a main perspective view of the present invention; Figure 2 It is a left-side stereogram of the present invention; Figure 3 It is a top side cutaway stereoscopic view of the present invention; Figure 4 It is a right side cutaway stereogram of the present invention; Figure 5 It is a partial front cutaway stereoscopic view of the present invention; Figure 6 For the present invention Figure 4 Enlarged stereogram of area A in the middle; Figure 7 For the present invention Figure 5 Enlarged stereogram of area B in the middle.

[0016] In the figure: support table 1, support mechanism 2, first motor 201, double-headed threaded rod 202, slider 203, first slide bar 204, connecting plate 205, first L-shaped plate 206, first cylinder 207, clamping plate 208, sponge pad 209, scanning mechanism 3, second L-shaped plate 301, connecting frame 302, second motor 303, reciprocating threaded rod 304, moving block 305, second slide bar 306, second cylinder 307, scanning head 308. Implementation

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0018] See also Figure 1-Figure 6 , the present invention provides a technical solution: a 3D printing orthopedic limb scanning sampling device, comprising a support table 1, a support mechanism 2 and a scanning mechanism 3 are arranged above the support table 1, and the support mechanism 2 is located below the scanning mechanism 3; The supporting mechanism 2 includes an adjusting portion and a supporting portion; The adjustment part is located at the rear side of the support part; The supporting part includes a connecting plate 205, a first L-shaped plate 206, a first cylinder 207, a clamping plate 208 and a sponge pad 209, and two of the connecting plate 205, the first L-shaped plate 206, the first cylinder 207, the clamping plate 208 and the sponge pad 209 are symmetrically arranged; The adjustment part includes a first motor 201, a double-threaded rod 202, a slider 203 and a first slider 204. Two sliders 203 are symmetrically arranged. A cavity is opened inside the support platform 1. The two sliders 203 are both located inside the cavity. The left side of the first motor 201 is fixedly connected to the right side of the support platform 1. The left end face of the output rod of the first motor 201 passes through the right side of the support platform 1 and extends to the inside of the cavity. The left end face of the output rod of the first motor 201 is fixedly connected to the right end face of the double-threaded rod 202. The left end face of the double-threaded rod 202 passes through the right sides of the two sliders 203. The left end face of the double-headed threaded rod 202 is rotatably connected to the inner wall of the cavity through the first bearing seat, and the side faces of the two sliders 203 are slidably connected to the inner wall of the cavity. A slide groove is provided on the front of the support platform 1. The front ends of the two sliders 203 slide through the inner wall of the cavity and the inner wall of the slide groove and extend to the front side of the support platform 1. The left end face of the first slide bar 204 slides through the right side faces of the two sliders 203 and extends to the left side of the slider 203. The left and right end faces of the first slide bar 204 are fixedly connected to the left and right side faces inside the cavity respectively. The front ends of the two sliders 203 are connected to the two connecting plates 20 The rear side surface of the two connecting plates 205 is fixedly connected to the bottom surfaces of the two first L-shaped plates 206 respectively, the bottom surface of the first cylinder 207 is fixedly connected to the top surface of the first L-shaped plate 206, the bottom end surface of the output rod of the first cylinder 207 passes through the top surface of the first L-shaped plate 206 and extends to the inside of the first L-shaped plate 206, the bottom end surface of the output rod of the first cylinder 207 is fixedly connected to the top surface of the clamping plate 208, the clamping plate 208 is arranged in an arc shape, and the bottom surface of the clamping plate 208 is fixedly connected to the top surface of the sponge pad 209. By setting the clamping plate 208 in an arc shape, it is more convenient to The device can be clamped and fixed to improve the scanning effect; the sponge pad 209 can prevent the clamping plate 208 from continuously squeezing the limbs and causing damage to the limbs, thereby improving the protection of the limbs; the adjustment part can adjust the distance between the two connecting plates 205 through the support mechanism 2, so as to facilitate the support of limbs of different lengths. The support part can clamp and fix limbs of different shapes, thereby avoiding the phenomenon that the limbs are suspended in the air during scanning, causing the limbs of the person to shake due to fatigue during the scanning process, thereby improving the accuracy of the scanning and at the same time improving the scope of use of the 3D printed orthopedic limb scanning sampling device. Example

[0019] On the basis of the first embodiment, a preferred embodiment of a 3D printing orthopedic limb scanning sampling device provided by the present invention is as follows: Figure 1-Figure 7 As shown: the scanning mechanism 3 includes a moving part and a scanning part; The moving part is located above the scanning part; The moving part includes a second L-shaped plate 301, a connecting frame 302, a second motor 303, a reciprocating threaded rod 304, a moving block 305 and a second sliding rod 306, and the bottom surface of the second L-shaped plate 301 is fixedly connected to the top surface of the support platform 1; The scanning part includes a second cylinder 307 and a scanning head 308. The bottom end face of the output rod of the second cylinder 307 is fixedly connected to the top face of the scanning head 308. The top face of the connecting frame 302 is fixedly connected to the inner top face of the second L-shaped plate 301. The left side face of the second motor 303 is fixedly connected to the right side face of the connecting frame 302. The left end face of the output rod of the second motor 303 penetrates through the right side face of the connecting frame 302 and extends to the inner side of the connecting frame 302. The left end face of the output rod of the second motor 303 is fixedly connected to the right end face of the reciprocating threaded rod 304. The left end face of the reciprocating threaded rod 304 penetrates through the right side face of the moving block 305 and extends to the left side of the moving block 305. The left end face of the reciprocating threaded rod 304 is connected to the connecting frame 301 through the second bearing seat. The inner side of the frame 302 is rotatably connected, and the left end face of the second slide bar 306 slides through the right side face of the moving block 305 and extends to the left side of the moving block 305. The left and right end faces of the second slide bar 306 are respectively fixedly connected to the left and right inner sides of the connecting frame 302, and the bottom face of the moving block 305 is fixedly connected to the top face of the second cylinder 307. Through the scanning mechanism 3, the output rod of the second cylinder 307 is extended to drive the scanning head 308 to rise and fall, so that the scanning head 308 can be closer to the limb for sampling, and the moving part drives the scanning part to move, thereby realizing the demand for sampling different parts, improving the scanning sampling range of the 3D printing orthopedic limb scanning sampling device, and well meeting the needs of the prior art.

[0020] A scanning method for a 3D printed orthopedic limb scanning sampling device, comprising the following steps: S1. placing the limbs of the person on the connecting plate 205; S2, adjusting the positions of the two connecting plates 202 according to the different lengths of limbs to support the limbs of different lengths; S3, controlling the first cylinder 207 to adjust the height of the clamping plate 208, so that the clamping plate 208 clamps and fixes the limbs of different shapes on the connecting plate 205; S4, controlling the second cylinder 307, the second cylinder 307 drives the scanning head 308 to move downward close to the limb to perform scanning sampling; S5, turning on the second motor 303, driving the scanning head 308 to move left and right to perform a comprehensive scanning and sampling of the limb.

[0021] When in use, a person's limbs are placed on the connecting plate 205. When encountering limbs of different lengths and shapes, the first motor 201 is turned on, and the output rod of the first motor 201 drives the connected double-headed threaded rod 202 to rotate, so that the double-headed threaded rod 202 drives the two connected sliders 203 to approach each other, and the two sliders 203 drive the two connected connecting plates 202 to approach each other, thereby supporting limbs of different lengths; the first cylinder 207 is turned on, and the output rod of the first cylinder 207 is extended to drive the connected clamping plate 208 to move downward, so that the clamping plate 208 clamps limbs of different shapes. It is fixed on the connecting plate 205, so as to scan and sample limbs of different shapes; the second cylinder 307 is turned on, and the output rod of the second cylinder 307 is extended to drive the connected scanning head 308 to move downward, so that the scanning head 308 is close to the limb for scanning and sampling; the second motor 303 is turned on, and the output rod of the second motor 303 drives the connected reciprocating threaded rod 304 to rotate, so that the reciprocating threaded rod 304 drives the connected moving block 305 to move, and the moving block 305 drives the second cylinder 307 to move left and right, thereby driving the scanning head 308 to move left and right to scan and sample the limb comprehensively.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A 3D printed orthopedic limb scanning sampling device, comprising a support table (1), characterized in that: A supporting mechanism (2) and a scanning mechanism (3) are arranged above the supporting platform (1), and the supporting mechanism (2) is located below the scanning mechanism (3); The supporting mechanism (2) comprises an adjusting portion and a supporting portion; The adjusting portion is located at the rear side of the supporting portion; The support portion comprises a connecting plate (205), a first L-shaped plate (206), a first cylinder (207), a clamping plate (208) and a sponge pad (209), wherein two of the connecting plate (205), the first L-shaped plate (206), the first cylinder (207), the clamping plate (208) and the sponge pad (209) are symmetrically arranged; The adjustment part comprises a first motor (201), a double-headed threaded rod (202), a slider (203) and a first slide rod (204), two sliders (203) are symmetrically arranged, a cavity is provided through the inside of the support platform (1), and the two sliders (203) are both located inside the cavity.

2. A 3D printing orthopedic limb scanning sampling device according to claim 1, characterized in that: The left side surface of the first motor (201) is fixedly connected to the right side surface of the support platform (1); the left end surface of the output rod of the first motor (201) passes through the right side surface of the support platform (1) and extends into the cavity; the left end surface of the output rod of the first motor (201) is fixedly connected to the right end surface of the double-threaded rod (202).

3. A 3D printing orthopedic limb scanning sampling device according to claim 1, characterized in that: The left end face of the double-headed threaded rod (202) is threadedly penetrated through the right side faces of the two sliders (203) and extends to the left side faces of the two sliders (203); the left end face of the double-headed threaded rod (202) is rotatably connected to the inner wall of the cavity through the first bearing seat; the side faces of the two sliders (203) are slidably connected to the inner wall of the cavity; a sliding groove is provided through the front face of the support platform (1); the front end faces of the two sliders (203) slide through the inner wall of the cavity and the inner wall of the sliding groove and extend to the front side of the support platform (1); the left end face of the first sliding rod (204) slides through the right side faces of the two sliders (203) and extends to the left side face of the slider (203); the left and right end faces of the first sliding rod (204) are fixedly connected to the left and right side faces inside the cavity, respectively.

4. A 3D printing orthopedic limb scanning sampling device according to claim 1, characterized in that: The front end surfaces of the two sliding blocks (203) are fixedly connected to the rear side surfaces of the two connecting plates (205); the top surfaces of the two connecting plates (205) are respectively fixedly connected to the bottom surfaces of the two first L-shaped plates (206); the bottom surface of the first cylinder (207) is fixedly connected to the top surface of the first L-shaped plate (206); the bottom end surface of the output rod of the first cylinder (207) passes through the top surface of the first L-shaped plate (206) and extends to the inner side of the first L-shaped plate (206); the bottom end surface of the output rod of the first cylinder (207) is fixedly connected to the top surface of the clamping plate (208); the clamping plate (208) is arranged in an arc shape; and the bottom surface of the clamping plate (208) is fixedly connected to the top surface of the sponge pad (209).

5. A 3D printing orthopedic limb scanning sampling device according to claim 1, characterized in that: The scanning mechanism (3) comprises a moving part and a scanning part; The moving part is located above the scanning part; The moving part comprises a second L-shaped plate (301), a connecting frame (302), a second motor (303), a reciprocating threaded rod (304), a moving block (305) and a second sliding rod (306); the bottom surface of the second L-shaped plate (301) is fixedly connected to the top surface of the support platform (1); The scanning unit comprises a second cylinder (307) and a scanning head (308), and the bottom end surface of an output rod of the second cylinder (307) is fixedly connected to the top surface of the scanning head (308).

6. A 3D printing orthopedic limb scanning sampling device according to claim 5, characterized in that: The top surface of the connecting frame (302) is fixedly connected to the top surface of the inner side of the second L-shaped plate (301); the left side surface of the second motor (303) is fixedly connected to the right side surface of the connecting frame (302); the left end surface of the output rod of the second motor (303) penetrates the right side surface of the connecting frame (302) and extends to the inner side of the connecting frame (302); the left end surface of the output rod of the second motor (303) is fixedly connected to the right end surface of the reciprocating threaded rod (304); the left end surface of the reciprocating threaded rod (304) is threadedly penetrated through the right side surface of the moving block (305) and extends to the left side of the moving block (305); the left end surface of the reciprocating threaded rod (304) is rotatably connected to the inner side surface of the connecting frame (302) via a second bearing seat.

7. A 3D printing orthopedic limb scanning sampling device according to claim 5, characterized in that: The left end surface of the second sliding rod (306) slides through the right side surface of the moving block (305) and extends to the left side of the moving block (305); the left and right end surfaces of the second sliding rod (306) are respectively fixedly connected to the left and right inner surfaces of the connecting frame (302); and the bottom surface of the moving block (305) is fixedly connected to the top surface of the second cylinder (307).

8. A scanning method according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. placing a person's limbs on the connecting plate (205); S2, adjusting the positions of the two connecting plates (202) according to the different lengths of limbs to support the limbs of different lengths; S3, controlling the first cylinder (207) to adjust the height of the clamping plate (208), so that the clamping plate (208) clamps and fixes limbs of different shapes on the connecting plate (205); S4, controlling the second air cylinder (307), so that the second air cylinder (307) drives the scanning head (308) to move downward close to the limb to perform scanning and sampling; S5, turning on the second motor (303) to drive the scanning head (308) to move left and right to perform a comprehensive scanning and sampling of the limb.

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