Multi-view acquisition apparatus for three-dimensional modeling

Abstract

The application relates to the field of three-dimensional imaging, and aims to provide a multi-view acquisition device for three-dimensional modeling, which solves the problem of how to quickly acquire product shapes. The driving mechanism comprises a clamping plate group, a first motor and a rolling gear, an arc-shaped hole is arranged on an arc-shaped plate, the arc-shaped hole is consistent with the extension direction of the arc-shaped plate, the clamping plate group is slidably arranged on the arc-shaped plate, the first motor is arranged on the clamping plate group, the rolling gear is connected to the driving end of the motor, the rolling gear is rollingly arranged in the arc-shaped hole, and an acquisition device is arranged on the clamping plate group. The arc-shaped hole is consistent with the extension direction of the arc-shaped plate, the clamping plate group is slidably arranged on the arc-shaped plate, the first motor is arranged on the clamping plate group, the rolling gear is connected to the driving end of the motor, the rolling gear is rollingly arranged in the arc-shaped hole, and the acquisition device is arranged on the clamping plate group.

Description

Technical Field

[0001] This invention relates to the field of three-dimensional imaging, and in particular to multi-view acquisition equipment for three-dimensional modeling. Background Technology

[0002] 3D digitization technology, serving as a bridge between the physical and digital worlds, plays a crucial role in fields such as industrial inspection, reverse engineering, cultural relic preservation, medical rehabilitation, and virtual reality. Currently, mainstream 3D data acquisition methods mainly include contact measurement and non-contact optical measurement. Among them, handheld 3D scanners and cameras based on structured light, laser triangulation, or photogrammetry principles have become the preferred solution for 3D reconstruction of small- to medium-scale objects due to their portability, operational flexibility, and relatively low cost.

[0003] However, in actual 3D data acquisition operations, relying solely on manual handheld scanning still has significant technical limitations, mainly in the following aspects: Issues with data acquisition completeness and occlusion arise, as handheld scanning heavily relies on the operator's experience and spatial imagination. For objects with complex geometric features (such as deep holes, grooves, and undercut structures), operators often struggle to visually determine whether the current viewpoint covers all surfaces. The lack of real-time global perspective feedback easily creates blind spots, leading to missing point cloud data. This "missed acquisition" phenomenon is often only discovered in later data processing stages, forcing operators to rescan, severely reducing work efficiency. Attitude control and data consistency are crucial for high-quality reconstruction algorithms, which typically require sufficient overlap between adjacent frames and stable relative motion speeds. Handheld devices struggle to maintain constant scanning speeds and extremely smooth motion trajectories. During long-distance or large-area scans, minute attitude jitters and angular deviations accumulate over time, leading to significant drift errors and ultimately affecting the geometric accuracy of the final model. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-view acquisition device for 3D modeling, which solves the problem of how to quickly acquire product shapes.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: This invention provides a multi-view acquisition device for 3D modeling, including an acquisition component and a rotation component. The acquisition component includes a linear module, an arc plate, a drive mechanism, and an acquisition device. The arc plate is disposed on the drive end of the linear module, and the arc plate extends with an arc. The driving mechanism includes a clamping plate assembly, a first motor, and a rolling gear. An arc-shaped hole is provided on the arc-shaped plate, and the arc-shaped hole is consistent with the extension direction of the arc-shaped plate. The clamping plate assembly is slidably disposed on the arc-shaped plate. The first motor is disposed on the clamping plate assembly. The rolling gear is connected to the driving end of the motor and is rolled within the arc-shaped hole. The collector is disposed on the clamping plate assembly. The rotating assembly includes a base frame, a second motor, and a turntable. The turntable is rotatably mounted on the upper end of the base frame, and the second motor is mounted on the base frame. The turntable is connected to the drive end of the second motor. The turntable is used to place the items to be collected, and the collecting end of the collector is always aligned with the items to be collected.

[0007] To further limit the structure of the clamping plate assembly, the clamping plate assembly includes a first side plate and a second side plate connected to each other. The first side plate and the second side plate are respectively movable along the arc-shaped plate. The collector is disposed on the first side plate or the second side plate, and the first motor is disposed on the first side plate.

[0008] To further limit the structure of the drive mechanism, the drive mechanism also includes a positioning bolt and a spring. The positioning bolt has a screw and an end. The screw passes through the first side plate and the arc-shaped hole. The screw is threadedly connected to the second side plate. The spring is sleeved on the screw, and the two ends of the spring abut against the first side plate and the end, respectively.

[0009] To further reduce friction, the driving mechanism also includes a first upper clamping wheel, a first upper clamping rod, a first lower clamping wheel, and a first lower clamping rod. A first upper clearance groove and a first lower clearance groove are provided on the first side plate. The first upper clamping rod and the first lower clamping rod are respectively disposed on the first side plate. The first upper clamping wheel is rotatably mounted on the first upper clamping rod, which extends into the first upper clearance groove. The first lower clamping wheel is rotatably mounted on the first lower clamping rod, which extends into the first lower clearance groove. The first upper clamping wheel and the first lower clamping wheel are arranged opposite to each other, and the first upper clamping wheel and the first lower clamping wheel rotatably conform to the side surface of the arc-shaped plate.

[0010] To further limit movement, the drive mechanism also includes a first nut and a second nut. The first nut engages with the first upper clamping rod and is located in the first upper clearance groove. The second nut engages with the first lower clamping rod and is located in the first lower clearance groove. The arc-shaped plate is provided with a first upper ring groove and a first lower ring groove. The first nut is located in the first upper ring groove, and the second nut is located in the first lower ring groove.

[0011] To further define the movement path, the drive mechanism also includes a toothed belt disposed within the arc-shaped hole, with both ends of the toothed belt connected to the two ends of the arc-shaped hole, and the toothed belt meshing with the rolling gear.

[0012] To prevent deviation during movement, the drive mechanism is further defined as follows: the drive mechanism includes a guide gear, which is rotatably disposed between the first side plate and the second side plate. The guide gear has a first guide plate and a second guide plate on its two sides, respectively. The guide gear is attached to the lower end of the arc-shaped hole, and the first guide plate and the second guide plate are located on both sides of the lower end of the arc-shaped hole.

[0013] To prevent the toothed belt from loosening, the drive mechanism further includes a first adjusting plate, a second adjusting plate, and an adjusting gear. The first ends of the first adjusting plate and the second adjusting plate are rotatably disposed on both sides of the arc-shaped plate. The adjusting gear is rotatably disposed between the first adjusting plate and the second adjusting plate and is located within the arc-shaped hole. The first end of the toothed belt is connected to the adjusting gear. The arc-shaped plate is provided with a first adjusting hole and a second adjusting hole. The second ends of the first adjusting plate and the second adjusting plate are simultaneously rotatably disposed within the first adjusting hole and the second adjusting hole.

[0014] To ensure suitable brightness during data acquisition, the rotating assembly further includes a light-blocking plate, which is raised and lowered on the base frame. The turntable is located within the area surrounded by the light-blocking plate, and the light-blocking plate is positioned to avoid being collected by the data collector.

[0015] To facilitate the raising and lowering of the light-blocking plate, the rotating assembly further includes a third motor, a rotating rod, a first rack, and a second rack. The third motor is located at the lower end of the base frame. The rotating rod is connected to the drive end of the third motor by a belt. A first lifting gear and a second lifting gear are respectively located at both ends of the rotating rod. The first rack and the second rack are slidably mounted on the base frame. The light-blocking plate is mounted on the first rack and the second rack. The first lifting gear and the first rack... The second lifting gear is meshed with the second rack.

[0016] Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art: The multi-view acquisition equipment for 3D modeling of the present invention can always accurately acquire images because the drive mechanism can slide precisely on the arc plate, the linear module drives the arc plate and the drive mechanism to move precisely, and the second motor precisely drives the turntable to rotate at a preset angle. Therefore, the acquisition device can always accurately acquire images without repeatedly adjusting the equipment, the acquisition can be continuous, and the acquisition efficiency is improved. Thus, the problem of how to quickly acquire product shapes is solved. Attached Figure Description

[0017] The following sections will describe some specific embodiments of the invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings: Figure 1 This is a stereoscopic view of a multi-view acquisition device for 3D modeling according to a preferred embodiment of the present invention; Figure 2 yes Figure 1 A 3D view of the acquisition component shown; Figure 3 yes Figure 2 The stereoscopic view of the acquisition component shown is from a second perspective. Figure 4 yes Figure 2 Enlarged view of section A in the middle; Figure 5 This is a three-dimensional view of the drive mechanism; Figure 6 yes Figure 5 A second-view perspective stereoscopic view of the drive mechanism shown. Figure 7 This is a three-dimensional view of the rotating component; Figure 8 This is a schematic diagram showing the positional relationship between the toothed belt and the rolling gear; Figure 9 This is a three-dimensional view of the guide gear.

[0018] The reference numerals in the attached figures are explained as follows: 1. Acquisition component; 2. Rotating component; 3. Convex strip; 4. Shadowless light source; 11. Linear module; 12. Arc plate; 13. Drive mechanism; 14. Acquisition device; 15. Arc hole; 20. Support plate; 21. Base frame; 22. Second motor; 23. Turntable; 24. Light blocking plate; 25. Third motor; 26. Rotating rod; 27. First rack; 28. Second rack; 29. ​​Pulley; 101. Screw; 102. End; 103. First upper clamping wheel; 104. First upper clamping rod; 105. First lower clamping wheel; 106. First lower clamping rod; 107. First upper clearance groove; 108. First lower clearance groove; 109. Guide gear; 111. First nut; 112. Second nut; 113. First guide plate; 114. Second guide plate 115. First adjusting plate; 116. Second adjusting plate; 117. Adjusting gear; 118. Sleeve; 121. First upper ring groove; 122. First lower ring groove; 123. Second upper clamping wheel; 124. Second upper clamping rod; 125. Second lower clamping wheel; 126. Second lower clamping rod; 127. Second upper clearance groove; 128. Second lower clearance groove; 131. Clamping plate assembly; 132. First motor; 133. Rolling gear; 134. Toothed belt; 135. First side plate; 136. Second side plate; 137. Positioning bolt; 138. Spring; 201. First support block; 202. Second support block; 203. Third nut; 204. Fourth nut; 205. Second upper ring groove; 206. Second lower ring groove; 207. First adjusting hole; 208. Second adjustment hole; 261. First lifting gear; 262. Second lifting gear. Detailed Implementation

[0019] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] like Figure 1 and Figure 2 and Figure 3 As shown, a multi-view acquisition device for 3D modeling includes an acquisition component 1 and a rotation component 2. The acquisition component 1 includes a linear module 11, an arc plate 12, a drive mechanism 13, and a collector 14. The arc plate 12 is disposed on the drive end of the linear module 11 and is fixed to the drive end of the linear module 11 by bolts. The linear module 11 drives the arc plate 12 to move along a straight line. The arc plate 12 extends with an arc and moves in a circle. In this example, the collector 14 is a camera or a 3D scanner.

[0023] The drive mechanism 13 includes a clamping plate assembly 131, a first motor 132, and a rolling gear 133. An arc-shaped hole 15 is provided on the arc plate 12, and the arc-shaped hole 15 is aligned with the extension direction of the arc plate 12. The clamping plate assembly 131 is slidably disposed on the arc plate 12. The first motor 132 is disposed on the clamping plate assembly 131 and is fixed to the clamping plate assembly 131 by bolts. The rolling gear 133 is connected to the drive end of the first motor 132 and is rolled within the arc-shaped hole 15. The collector 14 is disposed on the clamping plate assembly 131.

[0024] The first motor 132 drives the rolling gear 133 to rotate and move within the arc-shaped hole 15. The clamping plate assembly 131 and the collector 14 rotate and move together. In this example, the maximum rotation angle range of the collector 14 is 0-90°. As needed, the first motor 132 indirectly drives the collector 14 to rotate a preset angle, then pauses the drive, and continues the drive after the collector 14 has completed the acquisition.

[0025] The clamping plate assembly 131 includes a first side plate 135 and a second side plate 136 connected to each other. The first side plate 135 and the second side plate 136 are respectively movable along the arc plate 12. The collector 14 is disposed on the first side plate 135 or the second side plate 136. In this example, the 3D scanner is fixed on the first side plate 135 by a hanging rod, the camera is fixed on the second side plate 136 by a hanging rod, the first motor 132 is disposed on the first side plate 135, and the first motor 132 is fixed on the first side plate 135 by bolts. The rolling gear 133 is located between the first side plate 135 and the second side plate 136.

[0026] like Figure 5 and Figure 6As shown, the drive mechanism 13 also includes a positioning bolt 137 and a spring 138. The number of positioning bolts 137 and springs 138 is set as needed. The positioning bolt 137 has a screw 101 and an end 102. The screw 101 passes through the first side plate 135 and the arc-shaped hole 15. The screw 101 is threadedly connected to the second side plate 136. The spring 138 is sleeved on the screw 101. The two ends of the spring 138 abut against the first side plate 135 and the end 102 respectively. In this way, the first side plate 135 and the second side plate 136 are elastically connected. The first side plate 135 and the second side plate 136 are non-rigidly abutted against the two sides of the arc-shaped plate 12 respectively.

[0027] The drive mechanism 13 also includes a first upper clamping wheel 103, a first upper clamping rod 104, a first lower clamping wheel 105, and a first lower clamping rod 106. A first upper clearance groove 107 and a first lower clearance groove 108 are provided on the first side plate 135. The first upper clamping rod 104 and the first lower clamping rod 106 are respectively disposed on the first side plate 135. The first upper clamping wheel 103 is rotatably mounted on the first upper clamping rod 104. The first upper clamping rod 104 extends into the first upper clearance groove 107. The lower clamping wheel 105 is rotatably mounted on the first lower clamping rod 106, which extends into the first lower clearance groove 108. The first upper clamping wheel 103 is disposed opposite to the first lower clamping wheel 105. The first upper clamping wheel 103 and the first lower clamping wheel 105 rotate to fit against the side of the arc plate 12, and the first upper clamping wheel 103 and the first lower clamping wheel 105 roll into contact with the side of the arc plate 12, thus avoiding friction between the first side plate 135 and the side of the arc plate 12.

[0028] The drive mechanism 13 also includes a first nut 111 and a second nut 112. The first nut 111 engages with the first upper clamping rod 104 and is located within the first upper clearance groove 107. The second nut 112 engages with the first lower clamping rod 106 and is located within the first lower clearance groove 108. The arc-shaped plate 12 is provided with a first upper annular groove 121 and a first lower annular groove 122. The first nut 111 is located within the first upper annular groove 121, and the second nut 112 is located within the first lower annular groove 122. The first upper annular groove 121 is located within the first lower annular groove 108. Above the annular groove 122, the first nut 111 prevents the first upper clamping rod 104 from falling off the first side plate 135, and the second nut 112 prevents the first lower clamping rod 106 from falling off the first side plate 135. The arc-shaped hole 15 is located between the first upper annular groove 121 and the first lower annular groove 122. The extending directions of the first upper annular groove 121 and the first lower annular groove 122 are consistent with the extending direction of the arc-shaped hole 15. The first upper annular groove 121 prevents the first upper clamping wheel 103 from moving upward, and the first lower annular groove 122 prevents the first lower clamping wheel 105 from moving downward.

[0029] The drive mechanism 13 also includes a second upper clamping wheel 123, a second upper clamping rod 124, a second lower clamping wheel 125, and a second lower clamping rod 126. A second upper clearance groove 127 and a second lower clearance groove 128 are provided on the second side plate 136. The second upper clamping rod 124 and the second lower clamping rod 126 are respectively disposed on the second side plate 136. The second upper clamping wheel 123 is rotatably mounted on the second upper clamping rod 124, and the second lower clamping wheel 125 is rotatably mounted on the second upper clamping rod 125. On the second lower clamping rod 126, the second upper clamping rod 124 extends into the second upper clearance groove 127, and the second lower clamping rod 126 extends into the second lower clearance groove 128. The second upper clamping wheel 123 and the second lower clamping wheel 125 are arranged opposite to each other. The second upper clamping wheel 123 and the second lower clamping wheel 125 rotate to fit against the side of the arc plate 12, thus avoiding friction between the second upper clamping wheel 123 and the second lower clamping wheel 125 and the side of the arc plate 12.

[0030] The drive mechanism 13 also includes a third nut 203 and a fourth nut 204. The third nut 203 is engaged with the second upper clamping rod 124 and is located within the second upper clearance groove 127. The fourth nut 204 is engaged with the second lower clamping rod 126 and is located within the second lower clearance groove 128. The arc-shaped plate 12 is provided with a second upper ring groove 205 and a second lower ring groove 206. The third nut 203 is located within the second upper ring groove 205, and the fourth nut 204 is located within the second lower ring groove 206. The second upper ring groove 205 is located within the second lower ring groove 206. Above the groove 206, the third nut 203 can prevent the second upper clamping rod 124 from falling off the second side plate 136, and the fourth nut 204 can prevent the second lower clamping rod 126 from falling off the second side plate 136. The arc-shaped hole 15 is located between the second upper ring groove 205 and the second lower ring groove 206. The extending direction of the second upper ring groove 205 and the second lower ring groove 206 is consistent with the extending direction of the arc-shaped hole 15. The second upper ring groove 205 can prevent the second upper clamping wheel 123 from moving upward, and the second lower ring groove 206 can prevent the second lower clamping wheel 125 from moving downward.

[0031] The first upper clamping wheel 103 and the second upper clamping wheel 123 are arranged opposite to each other, and the first lower clamping wheel 105 and the second lower clamping wheel 125 are arranged opposite to each other. The first upper clamping wheel 103 and the second upper clamping wheel 123 have a clamping effect on the arc plate 12, and the first lower clamping wheel 105 and the second lower clamping wheel 125 also have a clamping effect on the arc plate 12.

[0032] The drive mechanism 13 also includes a toothed belt 134, which is disposed in the arc-shaped hole 15. The two ends of the toothed belt 134 are respectively connected to the two ends of the arc-shaped hole 15. The toothed belt 134 is meshed with the rolling gear 133. The screw 101 is arranged to avoid the toothed belt 134. The first motor 132 indirectly drives the rolling gear 133. The rolling gear 133 rotates and moves on the toothed belt 134. A sleeve 118 is rotatably sleeved on the screw 101. The sleeve 118 is located between the first side plate 135 and the second side plate 136. If the sleeve 118 touches the toothed belt 134, the sleeve 118 will roll in contact with the toothed belt 134 to reduce the wear of the sleeve 118 on the toothed belt 134.

[0033] like Figure 3 and Figure 8 and Figure 9 As shown, a first rotating wheel 17 and a second rotating wheel 18 are rotatably disposed between the first side plate 135 and the second side plate 136. A toothed belt 134 is respectively attached to the first rotating wheel 17 and the second rotating wheel 18. A rolling gear 133 is located on the first rotating wheel 17 and between the second rotating wheel 18. The toothed belt 134 is wrapped around the top end of the first rotating wheel 17, and then the toothed belt 134 meshes with the bottom end of the rolling gear 133. Then the toothed belt 134 is wrapped around the top end of the second rotating wheel 18. The toothed belt 134 always has an obstructive effect on the movement of the rolling gear 133.

[0034] The drive mechanism 13 also includes a guide gear 109. In this example, two guide gears 109 are provided. The guide gear 109 is rotatably disposed between the first side plate 135 and the second side plate 136. The guide gear 109 has a first guide plate 113 and a second guide plate 114 on both sides. The guide gear 109 is attached to the lower end of the arc-shaped hole 15. The first guide plate 113 and the second guide plate 114 are located on both sides of the lower end of the arc-shaped hole 15, so that the guide gear 109 is not easy to fall off the lower end of the arc-shaped hole 15.

[0035] A ridge 3 is formed between the first lower annular groove 122 and the second lower annular groove 206. The guide gear 109 is attached to the ridge 3. The first guide piece 113 is located in the first lower annular groove 122, and the second guide piece 114 is located in the second lower annular groove 206.

[0036] like Figure 2 and Figure 4As shown, the drive mechanism 13 also includes a first adjusting plate 115, a second adjusting plate 116, and an adjusting gear 117. The first ends of the first adjusting plate 115 and the second adjusting plate 116 are rotatably disposed on both sides of the arc-shaped plate 12, respectively. The first adjusting plate 115 and the second adjusting plate 116 are rotatably disposed on both sides of the arc-shaped plate 12 via a rotating shaft. The adjusting gear 117 is rotatably disposed between the first adjusting plate 115 and the second adjusting plate 116. The adjusting gear 117 is located inside the arc-shaped hole 15. The first end of the adjusting gear 117 is located inside the arc-shaped hole 15. The first end of the toothed belt 134 is connected to the adjusting gear 117, and the second end of the toothed belt 134 is connected to the second end of the toothed belt 134. The arc-shaped plate 12 is provided with a first adjusting hole 207 and a second adjusting hole 208. The first adjusting hole 207 and the second adjusting hole 208 extend around the rotating shaft. The second ends of the first adjusting plate 115 and the second adjusting plate 116 are simultaneously rotatably disposed within the first adjusting hole 207 and the second adjusting hole 208. The first adjusting plate 115 is adjustablely disposed within the first adjusting hole 207 and the second adjusting hole 208 by bolts, and the second adjusting plate 116 is adjustablely disposed within the first adjusting hole 207 and the second adjusting hole 208 by bolts. The first adjusting plate 115 and the second adjusting plate 116 can drive the adjusting gear 117 to rotate and move. The space of the arc-shaped hole 15 is large enough, so the tension of the toothed belt 134 can be adjusted by rotating the positions of the first adjusting plate 115 and the second adjusting plate 116 according to the tension of the toothed belt 134.

[0037] like Figure 1 and Figure 7 As shown, the rotating assembly 2 includes a base frame 21, a second motor 22, and a turntable 23. The turntable 23 is rotatably mounted on the upper end of the base frame 21. The second motor 22 is mounted on the base frame 21 and fixed to the lower end of the base frame 21 by bolts. The turntable 23 is connected to the drive end of the second motor 22. In this example, the drive end of the second motor 22 is connected to a reducer, and the turntable 23 is rotatably mounted on the reducer. The reducer is fixed to the base frame 21 by bolts. The second motor 22 drives the turntable 23 to rotate 360°. After the second motor 22 drives the turntable 23 to rotate by a preset angle, the drive is paused to cooperate with the data collector 14 to complete the data collection. Then, the first motor 132 indirectly drives the data collector 14 to rotate and move by a preset angle. The second motor 22 drives the turntable 23 to rotate by a preset angle, and the data collector 14 continues to collect data.

[0038] The turntable 23 is used to place the items to be collected. The collecting end of the collector 14 is always aligned with the items to be collected. Even if the first motor 132 indirectly drives the collector 14 to rotate by a preset angle, only the collecting angle of the collector 14 changes, but the collecting end of the collector 14 remains aligned with the items to be collected.

[0039] The rotating assembly 2 also includes a light-blocking plate 24, which is raised and lowered on the base frame 21. The light-blocking plate 24 surrounds the turntable 23 and partially encloses the turntable 23. A shadowless light source 4 is provided on the inner side of the light-blocking plate 24. The shadowless light source 4 is fixed to the inner side of the light-blocking plate 24 by bolts. The shadowless light source 4 is turned on as needed and emits light to illuminate the product, which helps the collector 14 to collect the light. The turntable 23 is located in the area surrounded by the light-blocking plate 24. The light-blocking plate 24 is set in a way that avoids the collector 14 from collecting the light. The collector 14 collects the light from the top of the turntable 23 and then rotates and moves 90° to collect the light.

[0040] The rotating assembly 2 also includes a third motor 25, a rotating rod 26, a first rack 27, and a second rack 28. The third motor 25 is located at the lower end of the base frame 21. The rotating rod 26 is connected to the drive end of the third motor 25 by a belt. A pulley 29 is provided on the rotating rod 26. The third motor 25 and the pulley 29 are connected by a belt. The third motor 25 drives the pulley 29 to rotate by the belt, and the pulley 29 drives the rotating rod 26 to rotate.

[0041] The rotating assembly 2 also includes a support plate 20, with a first support block 201 and a second support block 202 at each end. A rotating rod 26 is rotatably mounted on the first support block 201 and the second support block 202, and passes through the first support block 201 and the second support block 202. A first rack 27 and a second rack 28 are slidably mounted on the base frame 21. A first lifting gear 261 and a second lifting gear 262 are respectively mounted at each end of the rotating rod 26. The first lifting gear 261 meshes with the first rack 27, and the second lifting gear 262 meshes with the second rack 28. A light-blocking plate 24 is mounted on the first rack 27 and the second rack 28, and is fixed to the first rack 27 and the second rack 28 by bolts.

[0042] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A multi-view acquisition device for 3D modeling, comprising an acquisition component (1) and a rotation component (2), characterized in that, The acquisition component (1) includes a linear module (11), an arc plate (12), a drive mechanism (13), and an acquisition device (14). The arc plate (12) is disposed on the drive end of the linear module (11), and the arc plate (12) extends with an arc. The driving mechanism (13) includes a clamping plate assembly (131), a first motor (132), and a rolling gear (133). The arc plate (12) is provided with an arc-shaped hole (15), the arc-shaped hole (15) is consistent with the extension direction of the arc plate (12), the clamping plate assembly (131) is slidably disposed on the arc plate (12), the first motor (132) is disposed on the clamping plate assembly (131), the rolling gear (133) is connected to the driving end of the motor (132), the rolling gear (133) is rolled in the arc-shaped hole (15), and the collector (14) is disposed on the clamping plate assembly (131). The rotating assembly (2) includes a base frame (21), a second motor (22) and a turntable (23). The turntable (23) is rotatably mounted on the upper end of the base frame (21). The second motor (22) is mounted on the base frame (21). The turntable (23) is connected to the drive end of the second motor (22). The turntable (23) is used to place the items to be collected, and the collecting end of the collector (14) is always aligned with the items to be collected.

2. The multi-view acquisition equipment for 3D modeling according to claim 1, characterized in that, The clamping plate assembly (131) includes a first side plate (135) and a second side plate (136) connected to each other. The first side plate (135) and the second side plate (136) are respectively moved along the arc plate (12). The collector (14) is disposed on the first side plate (135) or the second side plate (136). The first motor (132) is disposed on the first side plate (135).

3. The multi-view acquisition equipment for 3D modeling according to claim 2, characterized in that, The drive mechanism (13) further includes a positioning bolt (137) and a spring (138). The positioning bolt (137) has a screw (101) and an end (102). The screw (101) passes through the first side plate (135) and the arc-shaped hole (15). The screw (101) is threadedly connected to the second side plate (136). The spring (138) is sleeved on the screw (101). The two ends of the spring (138) abut against the first side plate (135) and the end (102) respectively.

4. The multi-view acquisition equipment for 3D modeling according to claim 3, characterized in that, The drive mechanism (13) further includes a first upper clamping wheel (103), a first upper clamping rod (104), a first lower clamping wheel (105), and a first lower clamping rod (106). A first upper clearance groove (107) and a first lower clearance groove (108) are provided on the first side plate (135). The first upper clamping rod (104) and the first lower clamping rod (106) are respectively disposed on the first side plate (135). The first upper clamping wheel (103) is rotatably disposed on the first upper clamping rod (104). On the first upper clamping rod (104), the first upper clamping rod (104) extends into the first upper clearance groove (107), the first lower clamping wheel (105) is rotatably mounted on the first lower clamping rod (106), the first lower clamping rod (106) extends into the first lower clearance groove (108), the first upper clamping wheel (103) and the first lower clamping wheel (105) are arranged opposite to each other, and the first upper clamping wheel (103) and the first lower clamping wheel (105) respectively rotate to fit against the side of the arc plate (12).

5. The multi-view acquisition equipment for 3D modeling according to claim 4, characterized in that, The drive mechanism (13) further includes a first nut (111) and a second nut (112). The first nut (111) is engaged with the first upper clamping rod (104) and is located in the first upper clearance groove (107). The second nut (112) is engaged with the first lower clamping rod (106) and is located in the first lower clearance groove (108). The arc plate (12) is provided with a first upper ring groove (121) and a first lower ring groove (122). The first nut (111) is located in the first upper ring groove (121), and the second nut (112) is located in the first lower ring groove (122).

6. The multi-view acquisition equipment for 3D modeling according to claim 5, characterized in that, The drive mechanism (13) also includes a toothed belt (134), which is disposed in the arc-shaped hole (15). The two ends of the toothed belt (134) are respectively connected to the two ends of the arc-shaped hole (15), and the toothed belt (134) is meshed with the rolling gear (133).

7. The multi-view acquisition equipment for 3D modeling according to claim 6, characterized in that, The drive mechanism (13) further includes a guide gear (109), which is rotatably disposed between the first side plate (135) and the second side plate (136). The guide gear (109) has a first guide plate (113) and a second guide plate (114) on both sides. The guide gear (109) overlaps the lower end of the arc-shaped hole (15), and the first guide plate (113) and the second guide plate (114) are located on both sides of the lower end of the arc-shaped hole (15).

8. The multi-view acquisition equipment for 3D modeling according to claim 6, characterized in that, The drive mechanism (13) further includes a first adjusting plate (115), a second adjusting plate (116), and an adjusting gear (117). The first ends of the first adjusting plate (115) and the second adjusting plate (116) are respectively rotatably disposed on both sides of the arc plate (12). The adjusting gear (117) is rotatably disposed between the first adjusting plate (115) and the second adjusting plate (116). The adjusting gear (117) is located in the arc hole (15). The first end of the toothed belt (134) is connected to the adjusting gear (117). The arc plate (12) is provided with a first adjusting hole (207) and a second adjusting hole (208). The second ends of the first adjusting plate (115) and the second adjusting plate (116) are simultaneously rotatably disposed in the first adjusting hole (207) and the second adjusting hole (208).

9. The multi-view acquisition equipment for 3D modeling according to claim 1, characterized in that, The rotating assembly (2) also includes a light-blocking plate (24), which is raised and lowered on the base frame (21). The turntable (23) is located in the area surrounded by the light-blocking plate (24), and the light-blocking plate (24) is set in a way that avoids the collection of the collector (14).

10. The multi-view acquisition equipment for three-dimensional modeling according to claim 9, characterized in that, The rotating assembly (2) further includes a third motor (25), a rotating rod (26), a first rack (27), and a second rack (28). The third motor (25) is located at the lower end of the base frame (21). The rotating rod (26) is connected to the drive end of the third motor (25) by a belt. The two ends of the rotating rod (26) are respectively provided with a first lifting gear (261) and a second lifting gear (262). The first rack (27) and the second rack (28) are respectively slidably arranged on the base frame (21). The light-blocking plate (24) is arranged on the first rack (27) and the second rack (28). The first lifting gear (261) is meshed with the first rack (27), and the second lifting gear (262) is meshed with the second rack (28).

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