A 3D scanning modeling device for product appearance

Abstract

The present invention discloses a three-dimensional scanning modeling device for product appearance, comprising a shell, a bracket, a placement platform, a scanning rod and a scanning mechanism, wherein the bracket is fixedly arranged on the shell, the placement platform is fixedly arranged on the bracket, an L-shaped scanning rod is rotatably arranged on the top of the bracket, a guide rail is also arranged on the scanning rod, a scanning mechanism is slidably arranged on the guide rail, the guide rail is composed of a plurality of sliders, two adjacent sliders are connected by rubber blocks, and each slider is connected to the scanning rod by two telescopic rods.

Description

Technical Field

[0001] The present invention relates to the technical field of three-dimensional modeling, and in particular to a three-dimensional scanning modeling device for product appearance. Background Art

[0002] Three-dimensional scanning refers to a high-tech technology that integrates optical, mechanical, electrical and computer technologies. It is mainly used in the fields of virtual reality and augmented reality. It scans the spatial shape, structure and color of the target object to obtain the spatial coordinates of the target object's surface, and uses these spatial coordinates to model the target object.

[0003] At present, most of the 3D scanning equipment used in the market uses a scanning camera to rotate around the object to scan it. This scanning equipment works well when scanning some simple objects, but for some irregular products, it cannot accurately scan every corner of the object, resulting in a large discrepancy between the model obtained after scanning and the actual object.

[0004] Therefore, it is necessary to provide a three-dimensional scanning and modeling device for product appearance to solve the problems raised in the above background technology. Summary of the Invention

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a device for three-dimensional scanning and modeling of product appearance, comprising a housing, a bracket, a placement platform, a scanning rod, and a scanning mechanism, wherein the bracket is fixedly mounted on the housing, the placement platform is fixedly mounted on the bracket, an L-shaped scanning rod is rotatably mounted on the top end of the bracket, the scanning rod is further provided with a guide rail, and the scanning mechanism is slidably mounted on the guide rail;

[0006] The guide rail is composed of a plurality of sliders, two adjacent sliders are connected by rubber blocks, and each slider is connected to the scanning rod by two telescopic rods.

[0007] Further, as a preference, the scanning mechanism includes a slide, a deflection rod, a support rod 1 and a roller, wherein the deflection rods are configured in four numbers, and the four deflection rods are rotatably arranged at the four corners of the slide, and can be deflected up and down along the height direction of the slide, the output end of the deflection rod is rotatably provided with a roller, the left and right sides of the slide are symmetrically fixed with support rod 1, and the two deflection rods located on the same side are connected to the support rod 1 by spring 1, a sliding cavity is further provided inside the support rod 1, an L-shaped support rod 2 is slidably provided inside the sliding cavity, and the support rod 2 is connected to the support rod 1 by spring 2;

[0008] Slide rails are respectively provided on the left and right sides of the guide rail, and the two rollers located on the same side are clamped in the same slide rail and can roll along the slide rail.

[0009] Furthermore, as a preference, the scanning mechanism further comprises a driving rod and a scanning element, wherein the scanning element is fixedly arranged at the front end of the slide, the driving rods are fixedly arranged at the upper and lower sides of the rear end of the slide respectively, and the output end of the driving rod is rotatably provided with a gear;

[0010] The left and right sides of the slider are further provided with grooves, in which racks are fixedly arranged, and the two gears are respectively inserted into the grooves on the same side and mesh with the racks;

[0011] The positions of the two driving rods correspond to the positions of the two grooves respectively.

[0012] Furthermore, preferably, the second spring is always in a stretched state, and the slide seat can be pressed against the guide rail under the tension of the second spring.

[0013] Further, as a preference, the driving rod is retractable, and when the gear is engaged with the rack, the driving rod is in a compressed state;

[0014] Furthermore, the two gears are coaxially driven by motor 2.

[0015] Furthermore, preferably, the slider is diamond-shaped.

[0016] Furthermore, preferably, the scanning piece is provided with a scanning camera and a laser ranging sensor;

[0017] The bracket is also provided with a controller, which can control the extension and retraction of the telescopic rod;

[0018] The scanning camera can preliminarily scan the overall shape of the three-dimensional model and transmit the scanning information to the controller, and the controller can control the telescopic rod to extend and retract so that the guide rail fits the appearance shape of the three-dimensional model;

[0019] The laser ranging sensor can further detect the distance between the scanning part and the current scanning point of the three-dimensional model, and transmit this information to the controller. The controller controls the extension and retraction of the telescopic rod so that the guide rail fits the appearance shape of the three-dimensional model more closely.

[0020] Compared with the existing technology, the present invention provides a product appearance 3D scanning modeling device with the following beneficial effects:

[0021] In the present invention, an L-shaped scanning rod is provided, which can rotate 360° around the object to be scanned, so that the scanning mechanism can scan the object in all directions. It is also equipped with a flexible guide rail composed of multiple sliders and rubber blocks, and each slider is controlled by two telescopic rods, so that the guide rail can be adjusted according to the size and shape of the scanned object, so that it fits the appearance shape of the object, further making the scanning structure more accurate. In addition, the scanning mechanism is provided with four rollers, two driving gears and two L-shaped support rods, which can firmly clamp the scanning mechanism on the guide rail, so that when the guide rail is adjusted to different shapes, the scanning mechanism can slide along the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 Schematic diagram of the scanning rod structure in the present invention;

[0024] Figure 3 Schematic diagram of the scanning mechanism structure in the present invention Figure 1 ;

[0025] Figure 4 Schematic diagram of the scanning mechanism structure in the present invention Figure 2 ;

[0026] Figure 5 This is a schematic diagram of the power transmission of the scanning mechanism in the present invention;

[0027] In the figure: 1. Housing; 2. Bracket; 3. Placement table; 4. Scanning rod; 5. Scanning mechanism; 51. Slide; 52. Deflection rod; 53. Support rod 1; 54. Roller; 55. Driving rod; 56. Scanning part; 57. Spring 1; 58. Support rod 2; 59. Spring 2; 6. Guide rail; 61. Slider; 62. Rubber block; 63. Slide rail; 64. Rack; 7. Telescopic rod. DETAILED DESCRIPTION

[0028] Example: See Figures 1 to 5 In an embodiment of the present invention, a device for three-dimensional scanning and modeling of product appearance includes a housing 1, a bracket 2, a placement platform 3, a scanning rod 4, and a scanning mechanism 5, wherein the bracket 2 is fixedly mounted on the housing 1, the placement platform 3 is fixedly mounted on the bracket 2, an L-shaped scanning rod 4 is rotatably mounted on the top of the bracket 2, a guide rail 6 is further mounted on the scanning rod 4, and a scanning mechanism 5 is slidably mounted on the guide rail 6;

[0029] The guide rail 6 is composed of a plurality of sliders 61 , and two adjacent sliders 61 are connected by rubber blocks 62 . In addition, each slider 61 is connected to the scanning rod 4 by two telescopic rods 7 .

[0030] During implementation, the three-dimensional model is placed on the placement table 3, and then the motor 1 is started to make the scanning rod 4 rotate around the three-dimensional model. The scanning mechanism performs a preliminary scan on the three-dimensional model and transmits the scanning information to the controller. Then the controller adjusts the extension and retraction of the telescopic rod 7 according to the approximate shape of the appearance of the three-dimensional model, so that the guide rail fits the appearance of the three-dimensional model. Then the motor 2 is started to make the scanning mechanism 5 slide along the guide rail 6. At the same time, the laser distance sensor on the scanning mechanism 5 further detects the distance between the scanning mechanism 5 and the current scanning point of the three-dimensional model, and transmits this information to the controller. The controller further adjusts the extension and retraction of the telescopic rod according to this information, so that the guide rail 6 is more in line with the appearance of the three-dimensional model, thereby improving the accuracy of modeling after scanning.

[0031] In this embodiment, Figure 3 、 4 The scanning mechanism 5 includes a slide 51, a deflection rod 52, a support rod 53 and a roller 54, wherein the deflection rod 52 is configured in four, and the four deflection rods 52 are rotatably set at the four corners of the slide 51, which can be deflected up and down along the height direction of the slide 51. The output end of the deflection rod 52 is rotatably provided with a roller 54, and the left and right sides of the slide 51 are symmetrically fixed with support rods 53, and the two deflection rods 52 on the same side are connected to the support rod 53 by a spring 57. A sliding cavity is also opened inside the support rod 53, and an L-shaped support rod 2 58 is slidably set inside the sliding cavity. The support rod 2 58 is connected to the support rod 1 53 by a spring 2 59;

[0032] Slide rails 63 are respectively provided on the left and right sides of the guide rail 6 , and the two rollers 54 on the same side are clamped in the same slide rail 63 and can roll along the slide rail 63 .

[0033] During implementation, the roller 54 can limit the sliding direction of the slide 51 so that it can only slide along the slide rail 63. The support rod 58 can apply a tensioning force to the slide 51 under the action of the spring 59, so that the slide 51 can be close to the guide rail 6 when sliding. In addition, since the guide rail 6 needs to change its shape, in order to ensure that the slide 51 slides effectively along the guide rail 6, the deflection rod 52 is rotated and set to deflect along the Z-axis direction. When encountering a turn in the guide rail 6, the deflection rod 6 can be deflected to change the direction of the roller 54 so that it is the same direction as the slide rail 63.

[0034] In this embodiment, Figure 3 、 4The scanning mechanism 5 further includes a driving rod 55 and a scanning element 56, wherein the scanning element 56 is fixedly provided at the front end of the slide 51, and the driving rod 55 is fixedly provided at the upper and lower sides of the rear end of the slide 51, and a gear is provided for rotation at the output end of the driving rod 55;

[0035] The left and right sides of the slider are further provided with grooves, in which racks 64 are fixedly arranged, and the two gears are respectively inserted into the grooves on the same side and mesh with the racks 64;

[0036] The positions of the two driving rods 55 correspond to the positions of the two grooves respectively.

[0037] In particular, the slide 51 slides stably along the guide rail 6 by utilizing the meshing transmission of the gear rack.

[0038] In this embodiment, the second spring 59 is always in a stretched state, and the slide seat 51 can be pressed against the guide rail 6 under the pulling force of the second spring 59 .

[0039] In this embodiment, the driving rod 55 is retractable, and when the gear is engaged with the rack 64 , the driving rod 55 is in a compressed state;

[0040] Furthermore, the two gears are coaxially driven by motor 2.

[0041] In particular, when the slide 51 interacts with the turning point of the guide rail 6, the distance between the slide 51 and the guide rail 6 will change, and the driving rod 55 is set to a compressed state, which can ensure that the gear is always in meshing state with the rack 64, thereby ensuring the driving force of the slide 51.

[0042] In this embodiment, Figure 5 , the slider 6 is in a diamond shape.

[0043] It needs to be explained that when the slide 51 slides along the guide rail 6, it is driven by the meshing of gears and racks. Since the rubber block 62 is a flexible part, it cannot be embedded in the rack. The slide 61 is set into a diamond shape. At this time, the racks 64 set on both sides of the slide 61 are staggered in the horizontal direction, so that after multiple slides 61 are connected together, the racks 64 can be regarded as a continuous whole. In addition, there are two gears, and their positions correspond to different racks 64. During transmission, when the upper gear rotates to the rubber block 62, the lower gear can mesh to transmit power. When the lower gear rotates to the rubber block 62, the upper gear can mesh to transmit power, ensuring the power continuity when the slide 51 slides.

[0044] Similarly, the portion of the slide rail 63 that has a limiting force is the slider 61, and the slide rails 63 are also staggered. That is, when one of the two rollers in the same slide rail 63 is located at the rubber block 62, the other must be located at the slider 61. At the same time, one of the two rollers on the other slide rail 63 must also be located at the slider 61. The rollers 54 on the two slide rails 63 cooperate with each other, so that the slide seat 51 can play a limiting role in the process of sliding along the guide rail 6.

[0045] In this embodiment, the scanning element 56 is provided with a scanning camera and a laser ranging sensor;

[0046] The bracket 2 is also provided with a controller, which can control the extension and retraction of the telescopic rod 7;

[0047] The scanning camera can preliminarily scan the overall shape of the three-dimensional model and transmit the scanning information to the controller, and the controller can control the telescopic rod 7 to extend and retract so that the guide rail fits the appearance shape of the three-dimensional model;

[0048] The laser ranging sensor can further detect the distance between the scanning part 56 and the three-dimensional model, and transmit this information to the controller. The controller controls the extension and retraction of the telescopic rod 7 so that the guide rail fits the appearance shape of the three-dimensional model more closely.

[0049] To sum up, when this device is implemented, the three-dimensional model to be scanned is first placed on the placement table 3, and then the scanning mechanism 5 is used to perform a preliminary scan on it. After scanning its approximate shape, the controller controls the telescopic rod 7 to extend and retract to adjust the shape of the guide rail 6 so that it fits the appearance shape of the three-dimensional model, so that the scanning mechanism 5 can scan this three-dimensional model more accurately. Moreover, during the scanning process, the laser distance sensor can further detect the distance from the scanning part 56 to the scanning point of the three-dimensional model, so that the controller can adjust the shape of the guide rail 6 more accurately, making the scanning result more accurate.

[0050] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A 3D scanning and modeling device for product appearance, characterized by: The invention comprises a housing (1), a bracket (2), a placement platform (3), a scanning rod (4) and a scanning mechanism (5), wherein the bracket (2) is fixedly arranged on the housing (1), the placement platform (3) is fixedly arranged on the bracket (2), an L-shaped scanning rod (4) is rotatably arranged on the top end of the bracket (2), a guide rail (6) is further arranged on the scanning rod (4), and a scanning mechanism (5) is slidably arranged on the guide rail (6); The guide rail (6) is composed of a plurality of sliders (61), two adjacent sliders (61) are connected via rubber blocks (62), and each slider (61) is connected to the scanning rod (4) via two telescopic rods (7); The scanning mechanism (5) includes a slide (51), a deflection rod (52), a support rod (53) and a roller (54), wherein the deflection rods (52) are configured as four, and the four deflection rods (52) are rotatably arranged at the four corners of the slide (51) respectively, and can be deflected up and down along the height direction of the slide (51); the output end of the deflection rod (52) is rotatably provided with a roller (54); the left and right sides of the slide (51) are symmetrically fixed with support rods (53), and the two deflection rods (52) on the same side are connected to the support rod (53) through springs (57); a sliding cavity is also provided inside the support rod (53), and an L-shaped support rod (58) is slidably provided inside the sliding cavity, and the support rod (58) is connected to the support rod (53) through springs (59); The guide rail (6) is provided with slide rails (63) on the left and right sides respectively, and the two rollers (54) on the same side are clamped in the same slide rail (63) and can roll along the slide rail (63).

2. The product appearance three-dimensional scanning modeling device according to claim 1, characterized in that: The scanning mechanism (5) further comprises a driving rod (55) and a scanning element (56), wherein the scanning element (56) is fixedly arranged at the front end of the slide (51), and the driving rods (55) are fixedly arranged at the upper and lower sides of the rear end of the slide (51), and the output end of the driving rod (55) is rotatably provided with a gear; The left and right sides of the slider are also provided with grooves, and racks (64) are fixedly arranged in the grooves. The two gears are respectively inserted into the grooves on the same side and mesh with the racks (64). The positions of the two driving rods (55) respectively correspond to the positions of the two grooves.

3. The product appearance three-dimensional scanning modeling device according to claim 1, characterized in that: The second spring (59) is always in a stretched state, and the slide seat (51) can be pressed against the guide rail (6) under the pulling force of the second spring (59).

4. The product appearance three-dimensional scanning modeling device according to claim 2, characterized in that: The driving rod (55) is retractable, and when the gear is engaged with the rack (64), the driving rod (55) is in a compressed state; Furthermore, the two gears are coaxially driven by motor 2.

5. The product appearance three-dimensional scanning modeling device according to claim 1, characterized in that: The sliding block is rhombus-shaped.

6. The product appearance three-dimensional scanning modeling device according to claim 2, characterized in that: The scanning element (56) is provided with a scanning camera and a laser ranging sensor; The bracket (2) is also provided with a controller, and the controller can control the extension and retraction of the telescopic rod (7); The scanning camera can preliminarily scan the overall shape of the three-dimensional model and transmit the scanning information to the controller, and the controller can control the telescopic rod (7) to extend and retract so that the guide rail fits the appearance shape of the three-dimensional model; The laser distance sensor can further detect the distance between the scanning part (56) and the current scanning point of the three-dimensional model, and transmit this information to the controller, and the controller controls the telescopic rod (7) to extend and retract, so that the guide rail fits the appearance shape of the three-dimensional model more closely.

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