A net rack structure 3D laser scanning device

Abstract

The utility model discloses a kind of 3D laser scanning devices of net rack structure, including net rack mechanism and scanning mechanism, the net rack mechanism includes frame. In the utility model, according to the size specification of workpiece to be detected on tray, operator first inwardly folds two handles, drives two movable plates to be synchronized to centerline by mechanical transmission mechanism and close, memory metal rod is elastically bent due to stress at this time, subsequently D scanner is overall overturned 45 °, make movable plate end portion align the mesh diagonal direction of front net plate and carry out insertion operation, when movable plate is completely penetrated after net plate, D scanner is reset to horizontal working condition, and along mesh is pushed forward, until plug-in block is accurately embedded in corresponding slot inside, the complete fixing of movable plate is realized by mechanical self-locking mechanism, finally make the scanning center of D scanner and workpiece geometric center coincide, ensure the integrity and accuracy of three-dimensional modeling data acquisition.

Description

Technical Field

[0001] This utility model relates to the technical field of 3D laser scanning devices, specifically a 3D laser scanning device with a grid structure. Background Technology

[0002] 3D laser scanning technology is a technique that rapidly acquires three-dimensional geometric information of an object's surface by emitting a laser beam and capturing its reflected signal, combined with high-precision sensors and algorithms. Its core principle is to calculate the spatial coordinates of each point on the target object by measuring the time difference or phase change of the laser beam from emission to return, forming dense "point cloud" data, and ultimately constructing a three-dimensional digital model of the object.

[0003] In traditional 3D inspection systems for small workpieces, laser scanning equipment based on a fixed mounting architecture suffers from significant technical bottlenecks. Due to the use of rigid, fixed dedicated brackets for installation, the scanning system lacks dynamic pose adjustment capabilities. When faced with workpieces of significantly different sizes, its fixed field of view and depth of field parameters are ill-suited to the full surface coverage requirements of workpieces of varying volumes. Specifically, this technical deficiency manifests as a direct impact on the completeness of the 3D reconstruction when the workpiece size exceeds the preset scanning range. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A 3D laser scanning device with a grid structure includes a grid mechanism and a scanning mechanism. The grid mechanism includes a frame, a front grid plate and a rear grid plate installed inside the frame, with a gap between the front grid plate and the rear grid plate. The scanning mechanism includes a 3D scanner located on the front side of the frame, a housing fitted onto the rear side of the 3D scanner, two movable plates movably installed on the rear side of the housing, two memory metal rods installed between the two movable plates, two inserts connected to the movable plates, and multiple slots opened on the rear side of the rear grid plate and suitable for inserting the inserts. Both movable plates movably penetrate the front grid plate and the rear grid plate. A material support assembly is provided at the bottom of the frame.

[0007] By adopting the above technical solution, according to the size and specifications of the workpiece to be inspected on the tray, the operator first closes the two handles inward, and drives the two movable plates to move synchronously towards the center line through the mechanical transmission mechanism. At this time, the memory metal rod bends elastically due to the force. Then, the 3D scanner is rotated 45° so that the end of the movable plate is aligned with the diagonal direction of the mesh of the front screen plate for insertion. After the movable plate has completely penetrated the rear screen plate, the 3D scanner is reset to the horizontal working state and pushed forward along the mesh until the insert is accurately embedded in the corresponding slot. The movable plate is completely fixed by the mechanical self-locking mechanism, so that the scanning center of the 3D scanner coincides with the geometric center of the workpiece, ensuring the integrity and accuracy of the 3D modeling data acquisition.

[0008] In a preferred embodiment, the present invention can be further configured as follows: the material support assembly includes a base plate fixed to the bottom of the frame, a sliding sleeve disposed on the front side of the frame and connected to the top of the base plate, a slider slidably connected to the sliding sleeve, and a tray fitted to the top of the sliding sleeve and connected to the slider.

[0009] In a preferred embodiment, the present invention can be further configured such that: both movable plates are horizontally arranged, the two movable plates are parallel to each other, and the distance between the two movable plates is equal to the height of the mesh hole on the front mesh plate.

[0010] In a preferred embodiment, the present invention can be further configured such that two memory metal rods are vertically symmetrical about the vertical center plane of the movable plate, and the memory metal rods are U-shaped.

[0011] In a preferred embodiment, the present invention can be further configured such that: two rubber pads are installed on the rear side of the shell, the two rubber pads are respectively located on both sides of the movable plate, and the rear side of the rubber pads is interference-fitted with the front side of the front mesh plate.

[0012] In a preferred embodiment, the present invention can be further configured such that a handle is installed on the rear side of the movable plate, and the handle is U-shaped.

[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0014] 1. In this utility model, according to the size and specifications of the workpiece to be inspected on the tray, the operator first closes the two handles inward, and drives the two movable plates to move synchronously toward the center line through the mechanical transmission mechanism. At this time, the memory metal rod bends elastically due to the force. Then, the 3D scanner is rotated 45° so that the end of the movable plate is aligned with the diagonal direction of the mesh of the front screen plate for insertion. After the movable plate completely penetrates the rear screen plate, the 3D scanner is reset to the horizontal working state and pushed forward along the mesh until the insert is accurately embedded in the corresponding slot. The movable plate is completely fixed through the mechanical self-locking mechanism, so that the scanning center of the 3D scanner coincides with the geometric center of the workpiece, ensuring the integrity and accuracy of the 3D modeling data acquisition.

[0015] 2. In this utility model, after placing the workpiece to be inspected on the tray, the slider is moved along the sliding sleeve to move the tray forward to a suitable position of the 3D scanner, the distance between the workpiece and the 3D scanner is controlled, and then the tray is rotated, so that the 3D scanner can successfully model the workpiece in one go, thus improving the modeling efficiency. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the space frame mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the scanning mechanism of this utility model;

[0019] Figure 4 This is a rear view of the rear mesh panel of this utility model;

[0020] Figure 5 This is a schematic diagram showing the disassembled material support assembly of this utility model.

[0021] Figure label:

[0022] 100. Space frame structure; 110. Frame; 120. Front space plate; 130. Rear space plate;

[0023] 200. Scanning mechanism; 210. 3D scanner; 220. Housing; 230. Movable plate; 240. Memory metal rod; 250. Insert block; 260. Slot;

[0024] 300. Material support assembly; 310. Base plate; 320. Sliding sleeve; 330. Sliding block; 340. Pallet;

[0025] 400. Rubber pad;

[0026] 500, handle. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0028] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0029] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a 3D laser scanning device with a grid structure.

[0030] Example 1:

[0031] Combination Figure 1-5 As shown, the present invention provides a 3D laser scanning device with a grid structure, including a grid mechanism 100 and a scanning mechanism 200. The grid mechanism 100 includes a frame 110, a front grid plate 120 and a rear grid plate 130 installed inside the frame 110, and a gap is formed between the front grid plate 120 and the rear grid plate 130.

[0032] The scanning mechanism 200 includes a 3D scanner 210 disposed on the front side of the frame 110, a housing 220 sleeved on the rear side of the 3D scanner 210, two movable plates 230 movably mounted on the rear side of the housing 220, two memory metal rods 240 mounted between the two movable plates 230, two inserts 250 connected to the movable plates 230, and a plurality of slots 260 opened on the rear side of the rear mesh plate 130 and adapted for insertion of the inserts 250. Both movable plates 230 movably pass through the front mesh plate 120 and the rear mesh plate 130. A material support assembly 300 is provided at the bottom of the frame 110.

[0033] Furthermore, the material support assembly 300 includes a base plate 310 fixed to the bottom of the frame 110, a sliding sleeve 320 located on the front side of the frame 110 and connected to the top of the base plate 310, a slider 330 slidably connected to the sliding sleeve 320, and a tray 340 fitted to the top of the sliding sleeve 320 and connected to the slider 330. After placing the workpiece to be inspected on the tray 340, the slider 330 is moved along the sliding sleeve 320 to move the tray 340 forward to a suitable position on the 3D scanner 210, controlling the distance between the workpiece and the 3D scanner. Then, the tray 340 is rotated, so that the 3D scanner can successfully model the workpiece in one go.

[0034] Furthermore, both movable plates 230 are horizontally set and parallel to each other. The distance between the two movable plates 230 is equal to the height of the mesh holes on the front mesh plate 120. The layout design of the two movable plates 230 allows them to firmly clamp the mesh holes on the front mesh plate 120 and the rear mesh plate 130 after they are put together.

[0035] Furthermore, the two memory metal rods 240 are vertically symmetrical about the vertical center plane of the movable plate 230. The memory metal rods 240 are set in a U-shape. The layout design of the memory metal rods 240 allows the two movable plates 230 to open as wide as possible, ensuring that the movable plates 230 can be pressed tightly against the inner walls of the money net plate 120 and the rear net plate 130.

[0036] Example 2:

[0037] Combination Figure 3 As shown, based on Embodiment 1, two rubber pads 400 are installed on the rear side of the housing 220. The two rubber pads 400 are located on both sides of the movable plate 230. The rear side of the rubber pads 400 is press-fitted with the front side of the front mesh plate 120. By setting the rubber pads 400, after the movable plate 230 passes through the front mesh plate 120 and the rear mesh plate 130, the distance between the housing 220 and the front mesh plate 120 can be tightened, so that the 3D scanner 210 is firmly installed.

[0038] Example 3:

[0039] Combination Figure 3 As shown, in the above embodiment, a handle 500 is installed on the rear side of the movable plate 230. The handle 500 is U-shaped and is provided to facilitate the operator to close the two movable plates 230.

[0040] The working principle and usage process of this utility model are as follows: Based on the size and specifications of the workpiece to be inspected on the tray 340, the operation process for adjusting the position of the 3D scanner 210 is as follows: The operator first closes the two handles 500 inwards, and drives the two movable plates 230 to move synchronously towards the center line through the mechanical transmission mechanism. At this time, the memory metal rod 240 bends elastically due to the force. Then, the 3D scanner 210 is rotated 45°, so that the end of the movable plate 230 is aligned with the diagonal direction of the mesh opening of the front mesh plate 120 for insertion. After the movable plate 230 completely penetrates the rear mesh plate 130, the 3D scanner 210 is reset to a horizontal working state and pushed forward along the mesh opening until the insert 250 is precisely embedded in the corresponding slot 260. The movable plate 230 is completely fixed through the mechanical self-locking mechanism, ultimately ensuring that the scanning center of the 3D scanner 210 coincides with the geometric center of the workpiece, thus ensuring the integrity and accuracy of the 3D modeling data acquisition.

[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A 3D laser scanning device with a grid structure, characterized in that, include: A space frame mechanism (100) includes a frame (110), a front space plate (120) and a rear space plate (130) installed inside the frame (110), and a gap is formed between the front space plate (120) and the rear space plate (130); The scanning mechanism (200) includes a 3D scanner (210) located on the front side of the frame (110), a housing (220) sleeved on the rear side of the 3D scanner (210), two movable plates (230) movably installed on the rear side of the housing (220), two memory metal rods (240) installed between the two movable plates (230), two inserts (250) connected to the movable plates (230), and a plurality of slots (260) opened on the rear screen plate (130) and suitable for the inserts (250) to be inserted. Both movable plates (230) movably pass through the front screen plate (120) and the rear screen plate (130). The bottom of the frame (110) is provided with a material support assembly (300).

2. The 3D laser scanning device for a grid structure according to claim 1, characterized in that, The material support assembly (300) includes a base plate (310) fixed to the bottom of the frame (110), a sliding sleeve (320) located on the front side of the frame (110) and connected to the top of the base plate (310), a slider (330) slidably connected to the sliding sleeve (320), and a tray (340) fitted to the top of the sliding sleeve (320) and connected to the slider (330).

3. The 3D laser scanning device for a grid structure according to claim 1, characterized in that, Both movable plates (230) are set horizontally and are parallel to each other. The distance between the two movable plates (230) is equal to the height of the mesh hole of the front mesh plate (120).

4. The 3D laser scanning device for a grid structure according to claim 1, characterized in that, Two memory metal rods (240) are vertically symmetrical about the vertical center plane of the movable plate (230), and the memory metal rods (240) are set in a U shape.

5. The 3D laser scanning device for a grid structure according to claim 1, characterized in that, Two rubber pads (400) are installed on the rear side of the housing (220). The two rubber pads (400) are located on both sides of the movable plate (230). The rear side of the rubber pads (400) is in interference fit with the front side of the front mesh plate (120).

6. The 3D laser scanning device for a grid structure according to claim 1, characterized in that, A handle (500) is installed on the rear side of the movable plate (230), and the handle (500) is U-shaped.

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