一种激光阵列辅助对焦装置

Abstract

本申请公开一种激光阵列辅助对焦装置，包括：固定架；传送机构，设于固定架的下方，用于沿X轴方向运载物料；调焦机构，设于固定架上，包括：调平件，可转动地安装在固定架上；多个激光发射机构，沿X轴方向并列设置于调平件上，每个激光发射机构用于向传送机构上的物料投射宽度和方向均可调的Y向激光线；工业相机，设于调平件上；其用于拍摄传送机构处于空载和有载时Y向激光线的投射轮廓，并将拍摄的图像传输至工控机，通过工控机提取传送机构空载和有载状态下的轮廓特征，并识别出传送机构上的物料横截面轮廓，工控机根据横截面轮廓输出传送机构传送物料的体积。通过调平、调焦、垂直校准三重保障，提高计算物料的体积准确度。

Claims

1. A laser array assisted focusing device, characterized by, include: Fixture (3); A conveying mechanism (1) is located below the fixed frame (3) and is used to transport materials along the X-axis direction; A focusing mechanism (2), mounted on the fixed frame (3), includes: The leveling component (21) is rotatably mounted on the fixed frame (3); Multiple laser emitting mechanisms (23) are arranged side by side on the leveling member (21) along the X-axis direction. Each laser emitting mechanism (23) is used to project a Y-axis laser line with adjustable width and direction onto the material on the conveying mechanism (1). An industrial camera (24) is mounted on the leveling component (21); it is used to capture the projection profile of the Y-axis laser line when the conveying mechanism (1) is unloaded and loaded, and transmit the captured image to the industrial control computer. The industrial control computer extracts the profile features of the conveying mechanism (1) under unloaded and loaded conditions, and identifies the cross-sectional profile of the material on the conveying mechanism (1). The industrial control computer outputs the volume of the material conveyed by the conveying mechanism (1) according to the cross-sectional profile.

2. The laser array auxiliary focusing device according to claim 1, wherein, The fixing frame (3) is provided with a first drive motor (22), and the output shaft of the first drive motor (22) is rotatably connected to one side of the leveling component (21).

3. The laser array assisted focusing device of claim 2, wherein, The mounting block (31) is provided on the side of the fixed frame (3) opposite to the first drive motor (22), and the leveling component (21) is rotatably disposed in the mounting block (31) on the side away from the first drive motor (22).

4. The laser array auxiliary focusing device according to claim 1, wherein, Each of the laser emitting mechanisms (23) includes a laser emitting body (234) and a laser width adjustment sleeve (231) located at the lower end of the laser emitting body (234), wherein the laser width adjustment sleeve (231) is rotatable to adjust the width of the Y-direction laser line.

5. The laser array assisted focusing device of claim 4, wherein, The lower part of the laser emitter body (234) is fitted with a first metal sleeve (235), and a second drive motor (236) is provided on the first metal sleeve (235). The output end of the second drive motor (236) is connected to a first drive gear (237). A first driven gear (2311) is fitted on the outside of the laser width adjustment sleeve (231). The first drive gear (237) meshes with the first driven gear (2311) and can drive the laser width adjustment sleeve (231) to rotate, so as to adjust the width of the Y-axis laser line. The laser emitter body (234) is installed in the through hole (213) on the leveling component (21). A second metal sleeve (2341) is fitted on the upper part of the laser emitter body (2344). A second driven gear (2342) is fitted on the second metal sleeve (2341) and the second driven gear (2342) is located above the through hole (213). A third drive motor (214) is provided on the leveling component (21). The output end of the third drive motor (214) is connected to the second drive gear (215). The second drive gear (215) meshes with the second driven gear (2342) and can drive the laser emitting mechanism (23) to rotate so as to adjust the direction of the Y-axis laser line.

6. The laser array auxiliary focusing device according to claim 5, wherein, The first metal sleeve (235) is at least partially provided with a rectangular outer wall, and the second driving motor (236) is welded to the rectangular outer wall of the first metal sleeve (235).

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