CN111288918A

CN111288918A - Three-dimensional scanner

Info

Publication number: CN111288918A
Application number: CN202010190122.7A
Authority: CN
Inventors: 叶民崇; 刘庆; 李军旗; 王小东; 杨虎; 聂炎; 黄伟
Original assignee: Shenzhen Weixiong Precision Machinery Co ltd
Current assignee: Shenzhen Weixiong Precision Machinery Co ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-06-16

Abstract

The invention belongs to the technical field of scanning equipment, and particularly relates to a three-dimensional scanner which comprises a rack, a shaking mechanism, a loading mechanism and a scanning mechanism, wherein the rack is arranged on the rack; the shaking mechanism comprises a shaking driving assembly and a shaking arm, the shaking driving assembly is arranged on the rack, and a driving end of the shaking driving assembly is connected with the shaking arm and drives the shaking arm to shake; the object carrying mechanism comprises a rotation driving assembly and an object carrying platform, the rotation driving assembly is arranged on the swing arm, a driving end of the rotation driving assembly is connected with the object carrying platform and drives the object carrying platform to rotate, and the object carrying platform is used for mounting a workpiece; the scanning mechanism is mounted on the frame and is used to scan the surface of the workpiece. Like this scanning mechanism is at the in-process of scanning the work piece, through making the rocking of work piece and rotation mutually support, just can be with each surface of work piece that is located the objective table can be scanned completely, has avoided the camera effectively when scanning the work piece, the dead angle of reserving on the work piece guarantees the integrality of work piece scanning, excellent in use effect.

Description

Three-dimensional scanner

Technical Field

The invention belongs to the technical field of scanning equipment, and particularly relates to a three-dimensional scanner.

Background

Reverse engineering (also called reverse technology) is a reproduction process of product design technology. For workpieces which are not easy to design, the structural characteristics of the workpieces, such as human bones, teeth, complex aerospace workpieces and the like, can be obtained by utilizing a reverse engineering technology. One way to reverse engineer is to scan the external features of the workpiece with a three-dimensional scanner and read the data to obtain the external structural features of the workpiece. In the prior art, when a workpiece is scanned, the workpiece is generally fixed on an objective table, and a light source and a binocular camera are mobile to scan the external features of the workpiece, however, the scanning mode is easy to form scanning dead angles, and the scanning effect is poor.

Disclosure of Invention

The invention aims to provide a three-dimensional scanner, and aims to solve the technical problem that when a workpiece is scanned by the three-dimensional scanner in the prior art, scanning dead angles are easy to occur.

In order to achieve the purpose, the invention adopts the technical scheme that: a three-dimensional scanner comprises a frame, a shaking mechanism, a carrying mechanism and a scanning mechanism; the shaking mechanism comprises a shaking driving assembly and a shaking arm, the shaking driving assembly is arranged on the rack, and a driving end of the shaking driving assembly is connected with the shaking arm and drives the shaking arm to shake; the object carrying mechanism comprises a rotation driving assembly and an object carrying platform, the rotation driving assembly is mounted on the swing arm, a driving end of the rotation driving assembly is connected with the object carrying platform and drives the object carrying platform to rotate, and the object carrying platform is used for mounting a workpiece; the scanning mechanism is mounted on the frame and is used for scanning the surface of the workpiece.

Optionally, the rocking driving assembly comprises a rocking driving piece, a first gear, a second gear, a conveying belt and a connecting shaft, the rocking driving piece is installed on the rack, the driving end of the rocking driving piece is connected with the first gear and drives the first gear to rotate, the connecting shaft is rotatably installed on the rack, the second gear is installed at one end of the connecting shaft, the conveying belt is arranged between the first gear and the second gear in a winding mode, and the rocking arm is installed at the other end of the connecting shaft.

Optionally, an inductor is arranged on the second gear, a first limit switch and a second limit switch for inducing the inductor are arranged on the rack, and the first limit switch and the second limit switch are respectively located on two opposite sides of the second gear.

Optionally, an origin switch used for being induced by the inductor is arranged on the rack, and the origin switch is located on the side of the second gear and between the stroke of the first limit switch and the stroke of the second limit switch.

Optionally, the objective table includes year thing base and sliding seat, the sliding seat includes adjustable shelf and fixed subassembly, adjustable shelf detachably install in on the thing base, fixed subassembly install in on the adjustable shelf, be equipped with on the adjustable shelf and be used for placing the district of placing of work piece, fixed subassembly is used for the fixed position in place the district the work piece.

Optionally, the carrying base includes a carrying frame and a movable buckle installed on the carrying frame, the movable frame is movably installed on the carrying frame, and the movable buckle is used for fixing the movable frame.

Optionally, a pressing groove is formed in the carrier frame, the movable buckle comprises a buckling piece and an elastic piece, the buckling piece is installed in the pressing groove, the elastic piece abuts against the groove wall of the pressing groove and between the buckling pieces, a buckling lug is arranged on one side, facing the movable frame, of the buckling piece, and a buckling groove used for being buckled with the buckling lug is formed in the movable frame.

Optionally, the fixed subassembly includes fixed card post, removal card post and removal subassembly, fixed card post install in on the adjustable shelf and be located place the one end in district, remove the subassembly install in on the adjustable shelf and be located place the other end in district, the removal end of removing the subassembly with remove the card post and be connected and drive remove the card post and be close to or keep away from fixed card post removes.

Optionally, the rotation driving assembly includes a rotation driving member and a transmission assembly, a driving end of the rotation driving member is connected to an input end of the transmission assembly, and an output end of the transmission assembly is connected to the stage.

Optionally, the swing arm includes a vertical arm and a horizontal arm, the horizontal arm is installed at one end of the vertical arm, the other end of the vertical arm is installed on the connecting shaft, the rotation driving member is located on the vertical arm, the transmission assembly is located on the horizontal arm, and the objective table is located at the other end of the horizontal arm.

The three-dimensional scanner provided by the embodiment of the invention has the following beneficial effects: compared with the prior art, the three-dimensional scanner has the advantages that after the workpiece is arranged on the object stage, the object stage can be driven to swing by the swing driving component according to the requirement by the corresponding angle, so that the side of the workpiece can be completely scanned; then, the rotating driving component can drive the objective table to rotate by a corresponding angle according to needs, so that the circumferential direction of the workpiece can be completely scanned; like this scanning mechanism is at the in-process of scanning the work piece, through making the rocking of work piece and rotation mutually support, just can be with each surface of work piece that is located the objective table can be scanned completely, has avoided the camera effectively when scanning the work piece, the dead angle of reserving on the work piece guarantees the integrality of work piece scanning, excellent in use effect.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a three-dimensional scanner according to an embodiment of the present invention;

FIG. 2 is another schematic view of the three-dimensional scanner of FIG. 1;

FIG. 3 is a schematic diagram of a scanning mechanism of the three-dimensional scanner of FIG. 2;

FIG. 4 is a schematic diagram of a portion of the three-dimensional scanner of FIG. 2;

FIG. 5 is another schematic view of the structure of FIG. 4;

FIG. 6 is a schematic cross-sectional view of FIG. 4;

FIG. 7 is a schematic view of the loading mechanism of the three-dimensional scanner of FIG. 1;

FIG. 8 is a schematic diagram of the exploded structure of FIG. 7;

fig. 9 is another schematic exploded view of fig. 7.

Wherein, in the figures, the respective reference numerals:

10, a frame;

11-a first limit switch; 12-a second limit switch; 13-origin switch;

20-a rocking mechanism;

21-rocking the drive assembly; 22-swing arm; 211-shaking the drive member; 212 — a first gear; 213 — a second gear; 214-a conveyor belt; 215-a connecting shaft; 216-a tensioner; 221-vertical arm; 222 — a transverse arm; 2131-a sensor;

30-a carrying mechanism;

31 — a rotational drive assembly; 32-an object stage; 311 — rotating the driving member; 312 — a transmission assembly; 321-carrying base; 322-movable seat; 3211-a carrier rack; 3212-movable fastener; 3221-a movable frame; 3222 — a fixed component; 3223 — storage plate; 3213-pressing groove; 3214-magnetic member; 3215-positioning column; 3216-fastener; 3217-elastic member; 3224 — a placement area; 3225 — positioning the inclined plane; 3226 — fixing the clip column; 3227 — moving the card column; 3228 — a moving assembly; 3218-snap-fit lugs; 3229-lead screw; 3230-moving the nut; 3231-knob;

40-a scanning mechanism;

41-a projector; 42-a camera; 43-mirror.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-9 are exemplary and intended to be used to illustrate the invention, but are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1, 2 and 4, a three-dimensional scanner according to an embodiment of the present invention will now be described. The three-dimensional scanner comprises a frame 10, a shaking mechanism 20, a carrying mechanism 30 and a scanning mechanism 40; the swing mechanism 20 comprises a swing driving assembly 21 and a swing arm 22, the swing driving assembly 21 is mounted on the frame 10, and a driving end of the swing driving assembly 21 is connected with the swing arm 22 and drives the swing arm 22 to swing; the object carrying mechanism 30 comprises a rotary driving component 31 and an object carrying platform 32, the rotary driving component 31 is mounted on the swing arm 22, a driving end of the rotary driving component 31 is connected with the object carrying platform 32 and drives the object carrying platform 32 to rotate, and the object carrying platform 32 is used for mounting a workpiece; the scanning mechanism 40 is mounted on the gantry 10 and is used to scan the surface of the workpiece.

Compared with the prior art, the three-dimensional scanner provided by the embodiment of the invention has the advantages that after a workpiece is arranged on the object stage 32, the object stage 32 can be driven to rock by the rocking driving component 21 according to the requirement by a corresponding angle, so that the side of the workpiece can be completely scanned; then, the rotating driving assembly 31 can drive the object stage 32 to rotate by a corresponding angle as required, so that the circumferential direction of the workpiece can be completely scanned; therefore, in the process of scanning the workpiece, the scanning mechanism 40 can completely scan each surface of the workpiece on the object stage 32 by matching the shaking and the rotation of the workpiece, thereby effectively avoiding the dead angle left on the workpiece when the camera 42 scans the workpiece, ensuring the completeness of workpiece scanning and having good use effect.

As shown in fig. 2 and 3, the scanning mechanism 40 includes a projector 41 and a camera 42, the projector 41 is used for projecting light toward the workpiece; the camera 42 is used to collect data on the surface of the workpiece. The projector 41 is preferably a blue light projector 41, which projects more stable blue light than a white light source, and more stable points obtained by scanning identification and data acquisition; the cameras 42 are preferably binocular cameras 42, similar to human eyes, and the actual structural features of the scanned object are obtained through data acquisition and differential calculation of the two cameras 42.

In another embodiment of the present invention, as shown in fig. 3, a reflector 43 is disposed on the frame 10, and the reflector 43 is used for reflecting the light projected by the projector 41 to irradiate on the workpiece, so that the light is more uniform on the workpiece.

In another embodiment of the present invention, as shown in fig. 4, 5 and 6, the swing driving assembly 21 includes a swing driving member 211, a first gear 212, a second gear 213, a transmission belt 214 and a connection shaft 215, the swing driving member 211 is mounted on the frame 10, a driving end of the swing driving member 211 is connected to the first gear 212 and drives the first gear 212 to rotate, the connection shaft 215 is rotatably mounted on the frame 10, the second gear 213 is mounted at one end of the connection shaft 215, the transmission belt 214 is wound between the first gear 212 and the second gear 213, and the swing arm 22 is mounted at the other end of the connection shaft 215. Specifically, the swing driving member 211 may rotate in the forward direction or the reverse direction, and the second gear 213 is rotated by the transmission belt 214, and the second gear 213 swings the swing arm 22 in the vertical direction along the left and right sides by the connecting shaft 215. The shaking driving member 211 is preferably a stepping motor, which can precisely control the rotation angle of the first gear 212, and has a good use effect; while the first gear 212 and the second gear 213 are preferably synchronous wheels and the conveyor belt 214 is preferably a synchronous belt.

In another embodiment of the present invention, as shown in fig. 5, the number of teeth of the first gear 212 is less than that of the second gear 213, so that the second gear 213 rotates in a decelerating manner relative to the swing driving member 211, which is beneficial to controlling the speed of the swing arm 22 to avoid the workpiece from swinging too fast.

In another embodiment of the present invention, as shown in fig. 5, a tension wheel 216 is disposed between the first gear 212 and the second gear 213, such that the tension wheel 216 abuts against the belt 214, thereby maintaining the belt 214 in a tensioned state at all times, and facilitating the rotation of the second gear 213.

In another embodiment of the present invention, as shown in fig. 5, the second gear 213 is provided with a sensor 2131, the frame 10 is provided with a first limit switch 11 and a second limit switch 12 for sensing with the sensor 2131, and the first limit switch 11 and the second limit switch 12 are respectively located on two opposite sides of the second gear 213. Specifically, during the rotation of the second gear 213, the sensor 2131 capable of rotating synchronously with the second gear 213 is disposed on the second gear 213, and then two first limit switches 11 and two second limit switches 12 located at the limit positions are disposed on the side of the second gear 213 to limit the second gear 213 from passing through the two limit positions, so that when the sensor 2131 on the first gear 212 rotates to the position of the first limit switch 11 or the second limit switch 12, the rotation is stopped to prevent the workpiece on the stage 32 from falling due to the excessive rocking angle of the stage 32.

In another embodiment of the present invention, as shown in fig. 5, an origin switch 13 for sensing with the sensor 2131 is disposed on the frame 10, and the origin switch 13 is located at a side of the second gear 213 and between a stroke of the first limit switch 11 and a stroke of the second limit switch 12. Specifically, by setting the origin switch 13, the second gear 213 can return to the origin position after rotating every time, which is beneficial to next installation of the workpiece, and is convenient for counting and good in use effect.

In another embodiment of the present invention, as shown in fig. 7, 8 and 9, the object stage 32 includes an object base 321 and a movable seat 322, the movable seat 322 includes a movable frame 3221 and a fixing component 3222, the movable frame 3221 is detachably mounted on the object base 321, the fixing component 3222 is mounted on the movable frame 3221, a placing area 3224 for placing a workpiece is disposed on the movable frame 3221, and the fixing component 3222 is configured to fix the workpiece located in the placing area 3224. Specifically, because the movable seat 322 and the object carrying base 321 are detachably mounted, the user can take the movable seat 322 off the object carrying base 321 as required, and at the moment, the operator can get rid of the limitation of the mounting space on the three-dimensional scanner, so that the workpiece can be conveniently mounted. After the workpiece is installed, the movable seat 322 is installed on the carrying base 321, so that the use is convenient, and the installation efficiency of the workpiece is greatly improved.

In another embodiment of the present invention, as shown in fig. 7, 8 and 9, the carrying base 321 includes a carrying frame 3211 and a movable buckle 3212 installed on the carrying frame 3211, the movable rack 3221 is movably installed on the carrying frame 3211, and the movable buckle 3212 is used for fixing the movable rack 3221. Specifically, when the movable seat 322 needs to be taken down from the carrying base 321, only the movable buckle 3212 needs to be pressed, so that the movable frame 3221 is separated from the clamping connection with the carrying frame 3211, and the use is convenient; then when installing movable seat 322 to carrying on thing base 321, only need with the adjustable shelf 3221 lock joint on movable buckle 3212 can, it is extremely convenient to use.

In another embodiment of the present invention, as shown in fig. 7, 8 and 9, a pressing groove 3213 is disposed on the carrier 3211, the movable buckle 3212 includes a fastening member 3216 and an elastic member 3217, the fastening member 3216 is installed in the pressing groove 3213, the elastic member 3217 abuts between a groove wall of the pressing groove 3213 and the fastening member 3216, a buckling lug 3218 is disposed on a side of the fastening member 3216 facing the movable frame 3221, and a buckling groove (not shown) for buckling with the buckling lug 3218 is disposed on the movable frame 3221. Specifically, the fastening member 3216 is movably mounted in the pressing groove 3213, and when the elastic member 3217 is in an initial state, the fastening lug 3218 on the fastening member 3216 is fastened to the movable frame 3221, so that the movable frame 3221 is in a fixed state; when the movable seat 322 needs to be taken down, the fastener 3216 is pressed, the elastic element 3217 is compressed, the fastening lug 3218 is separated from the fastening groove, and then the movable seat 322 is taken down; after the movable frame 3221 is taken down, the elastic element 3217 is restored to an initial state, and then when the movable base 322 needs to be installed on the carrying base 321, the movable base 322 is placed on the carrying base 321, so that the fastening lug 3218 is fastened in the fastening groove.

In another embodiment of the present invention, as shown in fig. 8 and 9, the movable frame 3221 has a positioning inclined surface 3225 for positioning the buckling lug 3218. Specifically, when the movable seat 322 is mounted on the carrying base 321, the positioning inclined plane 3225 is disposed on the movable frame 3221, so that an operator can easily fasten the fastening groove on the movable frame 3221 to the fastening lug 3218, which is convenient to use.

In another embodiment of the present invention, as shown in fig. 8 and 9, a magnetic member 3214 is disposed on the carrier 3211, and the movable rack 3221 is a magnetic rack body. Specifically, the movable frame 3221 is made of a material that can be attracted by the magnetic element 3214, so that after the magnetic element 3214 is disposed on the object-carrying member, the movable frame 3221 can be attracted by the magnetic element 3214, and thus can be better fixed on the object-carrying base 321, and the using effect is good.

In another embodiment of the present invention, as shown in fig. 8 and 9, at least one positioning column 3215 is disposed on the object carrier 3211, and a positioning slot (not shown) corresponding to the positioning column 3215 is disposed on the movable frame 3221; or, at least one positioning slot is arranged on the object carrier 3211, and a positioning column 3215 corresponding to the positioning slot is arranged on the movable rack 3221. Specifically, positioning columns 3215 and positioning grooves are disposed between the object carrier 3211 and the movable rack 3221, so that when the movable seat 322 is mounted on the object carrying base 321, positioning can be completed more conveniently and rapidly, and mounting is convenient.

In another embodiment of the present invention, as shown in fig. 9, the fixed component 3222 includes a fixed clamping rod 3226, a moving clamping rod 3227 and a moving component 3228, the fixed clamping rod 3226 is mounted on the movable frame 3221 and is located at one end of the placing area 3224, the moving component 3228 is mounted on the movable frame 3221 and is located at the other end of the placing area 3224, and the moving end of the moving component 3228 is connected to the moving clamping rod 3227 and drives the moving clamping rod 3227 to move closer to or away from the fixed clamping rod 3226. Specifically, when the workpiece is fixed in the placing area 3224, the moving component 3228 drives the moving clamping column 3227 to move, so that the side of the workpiece is abutted between the fixing clamping column 3226 and the moving clamping column 3227, and fixation is achieved, wherein the lower portion of the workpiece can be placed on the bottom wall of the placing area 3224, and can also be arranged in a suspended manner, and the installation is convenient.

In another embodiment of the present invention, as shown in fig. 9, an object placing plate 3223 for placing a workpiece is disposed in the placing area 3224, and the object placing plate 3223 can better place the workpiece, so that the workpiece is stably placed in the placing area 3224, and is not prone to falling, which is beneficial to improving the accuracy of the workpiece scanning data.

As shown in fig. 9, the moving assembly 3228 includes a screw rod 3229, a moving nut 3230 and a knob 3231, the screw rod 3229 is rotatably installed on the movable frame 3221, the moving nut 3230 is screwed with the screw rod 3229, the knob 3231 is installed on the screw rod 3229 and is used for screwing the screw rod 3229 to rotate, and the moving clamping column 3227 is installed on the moving nut 3230, so that the moving clamping column 3227 is driven by the moving nut 3230 on the screw rod 3229, when a workpiece needs to be installed, an operator only needs to screw the knob 3231 to drive the moving clamping column 3227 to move, and the use is convenient.

In another embodiment of the present invention, as shown in fig. 4 and 6, the rotary driving assembly 31 includes a rotary driving member 311 and a transmission assembly 312, wherein a driving end of the rotary driving member 311 is connected to an input end of the transmission assembly 312, and an output end of the transmission assembly 312 is connected to the object stage 32. In particular, the driving assembly 312 may be a combination of gears and belts 214 commonly used in the market, and the rotation driving member 311 is a stepping motor, which can rotate forward or backward freely, so that the stage 32 can rotate clockwise or counterclockwise freely. And the rotation driving assembly 31 is arranged in the swing arm 22, so that the three-dimensional scanner provided by the embodiment of the invention has a compact structure and a good use effect.

In another embodiment of the present invention, as shown in fig. 6, the swing arm 22 includes a vertical arm 221 and a horizontal arm 222, the horizontal arm 222 is mounted at one end of the vertical arm 221, the other end of the vertical arm 221 is mounted on the connecting shaft 215, the rotary driving member 311 is located on the vertical arm 221, the transmission assembly 312 is located on the horizontal arm 222, and the object stage 32 is located at the other end of the horizontal arm 222. Specifically, the swing arm 22 is in an L shape, so that the swing arm 22 is favorable for driving the object stage 32 to swing, the object stage 32 can independently rotate freely, the workpiece is guaranteed to have sufficient freedom of movement, the surfaces of the workpiece are exposed, the scanning dead angle is avoided, and the using effect is good.

In another embodiment of the invention, when scanning a workpiece, firstly smearing photosensitive powder on the workpiece, then placing the workpiece on an object stage 32, positioning and stably clamping the workpiece through soft rubber mud and a knob 3231, turning on a light source of a projector 41, projecting the light source on the surface of the workpiece with photosensitive powder to be detected through a reflector 43, detecting the position of each point on the surface of the induction workpiece by a binocular camera 42, calculating the surface characteristics of the workpiece through a chip and an algorithm, adjusting the posture change of the workpiece by controlling two stepping motors, so that the surface of the workpiece to be detected is irradiated and induced, storing a calculated 3D model of the workpiece in a three-dimensional scanner, reserving an interface on the three-dimensional scanner to copy the model to a U disk, and automatically transmitting the model to a designated computer through setting, wherein the computer can be connected with 3D printing equipment, and an artificial model processing module is added in the middle, and the scanned model is manually re-modified or not processed, and then the model data is sent to a 3D printing end for automatic printing. Therefore, efficient semi-automatic or automatic reverse production workpieces integrating detection, model processing and 3D printing can be realized.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A three-dimensional scanner, characterized by: comprises a frame, a shaking mechanism, a carrying mechanism and a scanning mechanism; the shaking mechanism comprises a shaking driving assembly and a shaking arm, the shaking driving assembly is arranged on the rack, and a driving end of the shaking driving assembly is connected with the shaking arm and drives the shaking arm to shake; the object carrying mechanism comprises a rotation driving assembly and an object carrying platform, the rotation driving assembly is mounted on the swing arm, a driving end of the rotation driving assembly is connected with the object carrying platform and drives the object carrying platform to rotate, and the object carrying platform is used for mounting a workpiece; the scanning mechanism is mounted on the frame and is used for scanning the surface of the workpiece.

2. The three-dimensional scanner according to claim 1, wherein: the shaking driving assembly comprises a shaking driving piece, a first gear, a second gear, a conveying belt and a connecting shaft, the shaking driving piece is installed on the rack, the driving end of the shaking driving piece is connected with the first gear and drives the first gear to rotate, the connecting shaft is rotatably installed on the rack, the second gear is installed at one end of the connecting shaft, the conveying belt is arranged between the first gear and the second gear in a winding mode, and the shaking arm is installed at the other end of the connecting shaft.

3. The three-dimensional scanner according to claim 2, wherein: the rack is provided with a first limit switch and a second limit switch which are used for being inducted by the inductor, and the first limit switch and the second limit switch are respectively positioned on two opposite sides of the second gear.

4. The three-dimensional scanner according to claim 3, wherein: the rack is provided with an original point switch used for being induced by the inductor, and the original point switch is located on the side of the second gear and between the stroke of the first limit switch and the stroke of the second limit switch.

5. The three-dimensional scanner according to claim 1, wherein: the objective table includes year thing base and sliding seat, the sliding seat includes adjustable shelf and fixed subassembly, adjustable shelf detachably install in carry on the thing base, fixed subassembly install in on the adjustable shelf, be equipped with on the adjustable shelf and be used for placing the district of placing of work piece, fixed subassembly is used for the fixed position in place the district the work piece.

6. The three-dimensional scanner according to claim 5, wherein: the carrying base comprises a carrying frame and a movable buckle arranged on the carrying frame, the movable frame is movably arranged on the carrying frame, and the movable buckle is used for fixing the movable frame.

7. The three-dimensional scanner according to claim 6, wherein: the movable buckle comprises a movable frame and is characterized in that a pressing groove is formed in the object carrier, the movable buckle comprises a buckling piece and an elastic piece, the buckling piece is installed in the pressing groove, the elastic piece is abutted against the groove wall of the pressing groove and between the buckling pieces, a buckling lug is arranged on one side, facing the movable frame, of the buckling piece, and a buckling groove used for being buckled with the buckling lug is formed in the movable frame.

8. The three-dimensional scanner according to claim 5, wherein: the fixed subassembly includes the fixed card post, removes the card post and removes the subassembly, the fixed card post install in on the adjustable shelf and be located place the one end in district, remove the subassembly install in on the adjustable shelf and be located place the other end in district, the removal end of removing the subassembly with remove the card jogged joint and drive remove the card post and be close to or keep away from the fixed card post removes.

9. The three-dimensional scanner according to any one of claims 2 to 8, wherein: the rotation driving assembly comprises a rotation driving piece and a transmission assembly, the driving end of the rotation driving piece is connected with the input end of the transmission assembly, and the output end of the transmission assembly is connected with the objective table.

10. The three-dimensional scanner according to claim 9, wherein: the swing arm comprises a vertical arm and a transverse arm, the transverse arm is installed at one end of the vertical arm, the other end of the vertical arm is installed on the connecting shaft, the rotary driving piece is located on the vertical arm, the transmission assembly is located on the transverse arm, and the objective table is located at the other end of the transverse arm.