Detection device and detection method

Abstract

The invention relates to the technical field of mechanical detection, and discloses a detection device and a detection method. The detection device comprises a to-be-detected working surface, a first detection assembly and a third detection assembly. A to-be-measured working surface used for placing a to-be-measured workpiece; the first detection assembly is composed of a first image acquisition module and a first laser projection module, the first detection assembly is arranged at the top of the to-be-detected working face, the first laser projection module is installed on the side of the first image acquisition module, and the first laser projection module projects along the to-be-detected working face; the first image acquisition module performs vertical projection along a to-be-detected working surface; the first detection assembly collects the size of a detected object from a top view angle, the first image collection module is used for collecting plane geometric features (including length, width, diameter, spacing and the like), and the first laser projection module is used for collecting three-dimensional morphology features (including height, flatness, step difference and the like).

Description

Technical Field

[0001] This invention relates to the field of mechanical testing technology, specifically to a testing device and a testing method. Background Technology

[0002] In the field of industrial inspection, the inspection of workpiece dimensions and morphology is a key link in ensuring product quality.

[0003] Existing inspection devices still have several problems: Traditional inspection devices mostly use a single perspective for inspection, which can only acquire local feature data of the workpiece in a certain direction, making it difficult to comprehensively grasp the overall quality status of the workpiece. This single-view inspection method is prone to incomplete data, and often requires manual re-inspection and supplementation, which is not only inefficient but also prone to errors due to human judgment. Especially for complex three-dimensional curved surface workpieces, traditional methods are difficult to achieve complete digital reconstruction of the morphology, causing some small defects to be easily missed, affecting the final product quality control effect.

[0004] Therefore, there is an urgent need for a detection device and detection method to solve the above problems. Summary of the Invention

[0005] Based on the above, the purpose of this invention is to provide a detection device and a detection method to solve the problems of a single detection perspective and low detection accuracy.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a detection device, comprising:

[0007] The working surface to be measured is used to place the workpiece to be measured.

[0008] A first detection component is composed of a first image acquisition module and a first laser projection module. The first detection component is disposed on the top of the working surface to be tested, and the first laser projection module is installed on the side of the first image acquisition module. The first laser projection module projects along the working surface to be tested, and the first image acquisition module projects vertically along the working surface to be tested.

[0009] The first detection component acquires the size of the object under test from a top viewpoint, the first image acquisition module is used to acquire planar geometric features, and the first laser projection module is used to acquire three-dimensional morphological features.

[0010] A third detection component is composed of a second image acquisition module and a fourth laser projection module. The third detection component is disposed on the side of the working surface to be tested. The second image acquisition module is installed on the side of the fourth laser projection module. The second image acquisition module projects in a direction parallel to the working surface to be tested, and the fourth laser projection module projects in a direction parallel to the working surface to be tested.

[0011] The third detection component acquires the dimensions of the object being measured from a side viewpoint, the second image acquisition module is used to acquire side profile features, and the fourth laser projection module is used to acquire side three-dimensional features.

[0012] As a preferred embodiment of the detection device, it further includes a drive component connected to the first detection component, the drive component being used to drive the first detection component to reciprocate horizontally along the working surface to be tested.

[0013] As a preferred embodiment of the detection device, it further includes a second detection component consisting of a second laser projection module and a third laser projection module. The second detection component is disposed on the driving part of the driving component. The driving component simultaneously drives the first detection component and the second detection component to reciprocate horizontally along the working surface to be tested. The second detection component is disposed to the side of the first detection component, and the second laser projection module is mounted to the side of the third laser projection module.

[0014] The second laser projection module projects along the working surface to be tested, and the projection direction of the second laser projection module is opposite to the projection direction of the first laser projection module. The third laser projection module projects perpendicularly along the working surface to be tested.

[0015] The second detection component acquires the dimensions of the object under test from a top viewpoint. The third laser projection module is used to acquire planar geometric features. The second laser projection module is used to acquire the three-dimensional morphological features of the object under test on the other side opposite to the projection direction of the first laser projection module.

[0016] As a preferred embodiment of the detection device, it further includes a power component connected between the drive portion of the drive component and the second detection component, the power component being used to adjust the position of the second detection component relative to the first detection component.

[0017] As a preferred embodiment of the detection device, the third detection component is symmetrically arranged on both sides of the working surface to be tested. The symmetrically arranged third detection component is used to simultaneously collect the side profile features and three-dimensional shape features of the object to be tested on both sides.

[0018] As a preferred embodiment of the detection device, it further includes a movable component connected to the third detection component, the movable component being used to drive the third detection component to reciprocate horizontally along the working surface to be tested.

[0019] As a preferred embodiment of the testing device, it further includes a fixture that reciprocates along the working surface to be tested, the fixture being used to load the workpiece to be tested and transport it to the working surface to be tested.

[0020] As a preferred embodiment of the testing device, the fixture includes a rotating source and a suction cup connected in sequence. The rotating source is used to drive the suction cup to rotate around a vertical axis, and the suction cup is used to generate negative pressure adsorption force to fix the workpiece to be tested.

[0021] A detection method, applicable to the aforementioned detection device, includes the following steps:

[0022] S1: Place the workpiece to be tested on the working surface to be tested;

[0023] S2: The first detection component detects the workpiece from a top viewpoint; the first image acquisition module projects along a direction perpendicular to the working surface to be measured, and acquires the planar geometric features of the workpiece; the first laser projection module projects along a direction to the working surface to be measured, and acquires the three-dimensional morphological features of the workpiece.

[0024] S3: The third detection component detects the workpiece from a side view. The second image acquisition module projects along a direction parallel to the working surface to be measured to acquire the side contour features of the workpiece. The fourth laser projection module projects along a direction parallel to the working surface to be measured to acquire the side three-dimensional features of the workpiece through laser triangulation.

[0025] As a preferred embodiment of the detection method, the following steps are also included:

[0026] S2 specifically refers to S2-1: the first detection component and the second detection component perform scanning detection simultaneously; the first image acquisition module and the third laser projection module synchronously acquire planar geometric feature data of the workpiece; the first laser projection module and the second laser projection module project from two symmetrical directions respectively to acquire three-dimensional morphological feature data of the workpiece, and eliminate measurement blind spots through bidirectional complementary projection;

[0027] Specifically, S3 is S3-1: the third detection components on both sides synchronously collect side data of the workpiece on both sides along the working surface to be tested; the second image acquisition module obtains the side contour features of the workpiece; and the fourth laser projection module obtains the side three-dimensional features of the workpiece.

[0028] The beneficial effects of this invention are as follows: By employing simultaneous multi-view acquisition from the top and sides, complete planar geometric features and three-dimensional morphology data of the workpiece can be acquired in one go, improving inspection efficiency. Through the combination of laser projection and vertical image acquisition, both the accuracy of two-dimensional dimensional measurement and the precise reconstruction and inspection of complex curved surface morphologies are ensured. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a detection device in the first direction provided by the present invention;

[0030] Figure 2 This is a schematic diagram of the overall structure of a detection device in the second direction provided by the present invention;

[0031] Figure 3 A schematic diagram of the overall structure of the first detection component and the second detection component in a detection device provided by the present invention;

[0032] Figure 4 This is a schematic diagram of the overall structure of the third detection component in a detection device provided by the present invention;

[0033] Figure 5 This is a schematic diagram of the overall structure of the fixture in a detection device provided by the present invention;

[0034] Figure 6 A schematic diagram of the overall structure of a detection device installed on a workbench according to the present invention;

[0035] Figure 7 This is a schematic diagram of the first step of a detection method provided by the present invention;

[0036] Figure 8 This is a schematic diagram of the second step of a detection method provided by the present invention;

[0037] Figure 9 This is a schematic diagram of the third step of a detection method provided by the present invention.

[0038] The following are the labeling elements in the figure:

[0039] 1. First detection component;

[0040] 101. First image acquisition module; 102. First laser projection module;

[0041] 2. Second detection component;

[0042] 201. Second laser projection module; 202. Third laser projection module;

[0043] 3. Third detection component;

[0044] 301. Second image acquisition module; 302. Fourth laser projection module;

[0045] 4. Drive assembly; 5. Power assembly; 6. Movable assembly; 7. Fixture; 8. Rotation source; 9. Suction cup; 10. Working surface to be tested. Detailed Implementation

[0046] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0047] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 present invention.

[0050] In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0051] In one embodiment of the present invention, such as Figure 1-9As shown, a detection device is provided, including: a working surface 10 to be measured, a first detection component 1, and a third detection component 3. The working surface 10 is used to place the workpiece to be measured. The first detection component 1, composed of a first image acquisition module 101 and a first laser projection module 102, is disposed on top of the working surface 10. The first laser projection module 102 is installed to the side of the first image acquisition module 101, and projects along the working surface 10. The first image acquisition module 101 projects vertically along the working surface 10. The first detection component 1 acquires the dimensions of the object to be measured from a top viewpoint. The first image acquisition module 101 is used to acquire planar geometric features (including length, width, diameter, spacing, etc.), and the first laser projection module 102 is used to acquire three-dimensional morphological features (including height, flatness, etc.). (Step difference, etc.); The third detection component 3 is composed of the second image acquisition module 301 and the fourth laser projection module 302. The third detection component 3 is set on the side of the working surface 10 to be measured. The second image acquisition module 301 is installed on the side of the fourth laser projection module 302. The second image acquisition module 301 projects along a direction parallel to the working surface 10 to be measured, and the fourth laser projection module 302 projects along a direction parallel to the working surface 10 to be measured. The third detection component 3 acquires the dimensions of the object to be measured from the side view. The second image acquisition module 301 is used to acquire the side contour features (including height, thickness, edge straightness, etc.), and the fourth laser projection module 302 is used to acquire the side three-dimensional features (including depth, surface curvature, assembly gap, etc.).

[0052] The detection device provided by this invention employs simultaneous multi-view acquisition from the top and sides, enabling the acquisition of complete planar geometric features and three-dimensional morphological data of the workpiece in a single operation, thus improving detection efficiency. Through the combination of laser projection and vertical image acquisition, it ensures both the accuracy of two-dimensional dimensional measurement and the precise reconstruction and detection of complex curved surface morphologies.

[0053] The detection device also includes a drive component 4 connected to the first detection component 1. The drive component 4 is used to drive the first detection component 1 to reciprocate horizontally along the working surface 10 to be tested.

[0054] In this embodiment, the slide table and cylinder can be repeatedly installed to achieve three-axis linkage control of the drive component 4. Specifically, this includes: Mechanical detection axis drive: A linear slide table and servo motor are used to achieve horizontal longitudinal (mechanical detection direction) reciprocating motion of the first detection component 1. X-axis drive: A linear slide table and servo motor are used, mounted on the slide block of the mechanical detection axis drive, to achieve horizontal transverse (X-axis) reciprocating motion of the first detection component 1. Z-axis drive: A cylinder is configured and mounted on the slide block of the X-axis drive to achieve vertical (Z-axis) height adjustment of the first detection component 1.

[0055] This three-axis drive system can achieve precise spatial positioning of the first detection component 1, and can automatically complete complex trajectory scanning through programmed control, meeting the all-round detection needs of workpieces of different sizes.

[0056] Furthermore, the detection device also includes a second detection component 2 composed of a second laser projection module 201 and a third laser projection module 202. The second detection component 2 is disposed in the driving part of the driving component 4. The driving component 4 simultaneously drives the first detection component 1 and the second detection component 2 to reciprocate horizontally along the working surface 10 to be tested. The second detection component 2 is disposed to the side of the first detection component 1, and the second laser projection module 201 is mounted to the side of the third laser projection module 202.

[0057] The second laser projection module 201 projects along the working surface 10 to be tested, and the projection direction of the second laser projection module 201 is opposite to the projection direction of the first laser projection module 102. The third laser projection module 202 projects perpendicularly along the working surface 10 to be tested.

[0058] The second detection component 2 acquires the dimensions of the object under test from a top viewpoint, the third laser projection module 202 is used to acquire planar geometric features, and the second laser projection module 201 is used to acquire the three-dimensional morphological features of the other side of the object under test opposite to the projection direction of the first laser projection module 102.

[0059] In this embodiment, the drive component 4 synchronously drives the first detection component 1 and the second detection component 2 to move horizontally along the working surface 10 to perform scanning detection. The first image acquisition module 101 and the third laser projection module 202 synchronously acquire the planar geometric feature data of the workpiece; the first laser projection module 102 and the second laser projection module 201 project from two symmetrical directions respectively, acquiring the three-dimensional morphological feature data of the workpiece, and eliminating measurement blind spots through bidirectional complementary projection.

[0060] The detection device further includes a power component 5 connected between the drive part of the drive component 4 and the second detection component 2. The power component 5 is used to adjust the position of the second detection component 2 relative to the first detection component 1.

[0061] In this embodiment, the power assembly 5 uses a linear slide table in conjunction with a servo motor, and the second detection assembly 2 is mounted on the slide table slider to realize the position adjustment of the second detection assembly 2 and the first detection assembly 1. This not only allows for flexible adjustment of the detection coverage of the two assemblies according to the workpiece size, but also eliminates detection blind spots, thereby improving the versatility and detection accuracy of the device.

[0062] Preferably, the third detection component 3 is symmetrically arranged on both sides of the work surface 10 to be tested. The symmetrically arranged third detection component 3 is used to simultaneously collect the side profile features (including height, thickness, edge straightness, etc.) and three-dimensional morphological features (including depth, surface curvature, assembly gap, etc.) of the two sides of the object to be tested. By simultaneously detecting both sides, the system can focus and acquire complete and accurate data from both sides of the workpiece at once, avoiding the reference deviation caused by workpiece flipping or displacement during single-side detection, and improving detection efficiency.

[0063] More preferably, it also includes a movable component 6 connected to the third detection component 3, the movable component 6 being used to drive the third detection component 3 to reciprocate along the horizontal longitudinal direction of the working surface 10 to be tested.

[0064] In this embodiment, the movable component 6 can be a linear slide table in conjunction with a servo motor, and the third detection component 3 is mounted on the slide table slider. By driving the third detection components 3 on both sides to move longitudinally through the movable component 6, full-length coverage detection of long strip-shaped and irregularly shaped workpieces can be achieved.

[0065] Furthermore, the active component 6 can also be equipped with an additional linear slide table in conjunction with a servo motor to achieve dual-axis motion of the third detection component 3, thereby further improving the detection accuracy.

[0066] Preferably, it also includes a fixture 7, which can move back and forth along the working surface 10 to be tested by a linear slide and a servo motor. The fixture 7 is used to load the workpiece to be tested and transport it to the working surface 10 to be tested, effectively eliminating the positioning error of manual loading and improving the consistency of the test benchmark.

[0067] In this implementation, a lifting linear slide can be added in conjunction with a servo motor to achieve the lifting effect of fixture 7, thus avoiding collisions with other components during workpiece transfer.

[0068] Specifically, the fixture 7 includes a rotating source 8 and a suction cup 9 connected in sequence. The rotating source 8 drives the suction cup 9 to rotate around a vertical axis, and the suction cup 9 generates negative pressure to fix the workpiece to be tested. The suction cup 9 fixes the workpiece by adsorbing it with negative pressure, avoiding workpiece deformation caused by mechanical clamping; while the rotating source 8 drives the suction cup 9 to rotate around a vertical axis, which can flexibly adjust the placement angle of the workpiece, so that the features to be tested on the workpiece (such as oblique holes, non-orthogonal contours) are accurately aligned with the projection direction of the detection component, thereby improving detection efficiency.

[0069] Furthermore, pins can be used as tools to assist in workpiece positioning.

[0070] In this embodiment, the image acquisition module and the laser projection module can respectively employ a camera, a lens, and a line laser.

[0071] In this embodiment, the above-mentioned device can be installed on a workbench and protected with a protective cover.

[0072] Flat objects typically have six sides. This invention can comprehensively map the features of five sides (excluding the adsorption and fixation surface). The two opposite sides are scanned in one go, and a parametric model relationship is built relative to the origin to output accurate measurement data.

[0073] A detection method applicable to a detection device, comprising the following steps:

[0074] S1: Place the workpiece to be tested on the working surface 10;

[0075] S2: The first detection component 1 detects the workpiece from a top viewpoint. The first image acquisition module 101 projects along a direction perpendicular to the working surface 10 to be measured, and acquires the planar geometric features of the workpiece. The first laser projection module 102 projects along the direction of the working surface 10 to be measured, and acquires the three-dimensional morphological features of the workpiece.

[0076] S3: The third detection component 3 detects the workpiece from a side view. The second image acquisition module 301 projects along a direction parallel to the working surface 10 to acquire the side contour features of the workpiece. The fourth laser projection module 302 projects along a direction parallel to the working surface 10 to acquire the side three-dimensional features of the workpiece through laser triangulation.

[0077] The detection method provided by this invention achieves all-round size detection of the workpiece under test by combining the coordinated detection of top and side views with the planar feature capture of the image acquisition module and the three-dimensional shape measurement of the laser projection module.

[0078] From the top viewpoint, the vertically projected image acquisition is combined with the projected laser measurement to simultaneously acquire planar geometric parameters and three-dimensional height information, ensuring the integrity of top surface feature detection. From the side viewpoint, the parallel projection contour acquisition is combined with laser triangulation to accurately capture the two-dimensional contour and three-dimensional features of the side, effectively avoiding blind spots in side detection.

[0079] This implementation also includes the following steps:

[0080] S0: Drive the clamp 7 to move along the working surface 10 to the loading position, generate negative pressure through the suction cup 9 to adsorb the workpiece to be tested, and drive the suction cup 9 to adjust the workpiece to the preset angle, transport the workpiece to the detection area of ​​the working surface 10 to be tested and accurately position it.

[0081] S0 comes before S1;

[0082] S4: Drive the rotating source 8 to drive the suction cup 9 to adjust the workpiece to a preset angle. The length and width of the workpiece change, and drive the movable component 6 to pull away or move closer to the distance between the first detection component 1 and the second detection component 2, and repeat S2-S3.

[0083] S5: Integrates planar geometric features and three-dimensional morphological features from the top view, and side profile features and side three-dimensional features from the side view. Through algorithmic data calibration and fusion, it generates a complete three-dimensional dimensional model of the workpiece and an inspection report, and outputs various dimensional parameters and qualification judgment results.

[0084] Furthermore, in S2-1, the first detection component 1 and the second detection component 2 scan synchronously, and planar data (first image acquisition module 101 and third laser projection module 202) and three-dimensional data (first and second laser projection modules 201) are acquired in parallel, which greatly shortens the detection time of a single workpiece; the bidirectional symmetrical projection forms an intersecting coverage area, which can not only eliminate the shadow blind area of ​​single-sided projection (such as workpiece depressions, the bottom of deep holes, etc.) through dual-view data comparison, but also improve the accuracy of three-dimensional shape measurement through data fusion (especially the restoration of complex features such as curved surfaces and steps is more accurate).

[0085] In S3-1, the third detection components 3 on both sides acquire data synchronously, which can obtain complete data from both sides of the workpiece at one time, avoiding the reference offset caused by step detection on one side. At the same time, by comparing the features on both sides (such as symmetrical holes and sidewall thickness) in real time, the symmetry of the workpiece can be directly verified. The synchronous acquisition of planar contours and three-dimensional features ensures the spatiotemporal consistency of the side data, providing more reliable raw data for subsequent 3D modeling.

[0086] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present invention without departing from the scope of the present invention are within the scope of the present invention.

Claims

1. A detection device, characterized in that, include: The working surface to be measured is used to place the workpiece to be measured. A first detection component is composed of a first image acquisition module and a first laser projection module. The first detection component is disposed on the top of the working surface to be tested, and the first laser projection module is installed on the side of the first image acquisition module. The first laser projection module projects along the working surface to be tested, and the first image acquisition module projects vertically along the working surface to be tested. The first detection component acquires the size of the object under test from a top viewpoint, the first image acquisition module is used to acquire planar geometric features, and the first laser projection module is used to acquire three-dimensional morphological features. A third detection component is composed of a second image acquisition module and a fourth laser projection module. The third detection component is disposed on the side of the working surface to be tested. The second image acquisition module is installed on the side of the fourth laser projection module. The second image acquisition module projects in a direction parallel to the working surface to be tested, and the fourth laser projection module projects in a direction parallel to the working surface to be tested. The third detection component acquires the dimensions of the object being measured from a side viewpoint, the second image acquisition module is used to acquire side profile features, and the fourth laser projection module is used to acquire side three-dimensional features.

2. The detection device according to claim 1, characterized in that, It also includes a driving component connected to the first detection component, the driving component being used to drive the first detection component to reciprocate horizontally along the working surface to be tested.

3. The detection device according to claim 2, characterized in that, It also includes a second detection component consisting of a second laser projection module and a third laser projection module. The second detection component is disposed on the driving part of the driving component. The driving component simultaneously drives the first detection component and the second detection component to reciprocate horizontally along the working surface to be tested. The second detection component is disposed to the side of the first detection component, and the second laser projection module is mounted to the side of the third laser projection module. The second laser projection module projects along the working surface to be tested, and the projection direction of the second laser projection module is opposite to the projection direction of the first laser projection module. The third laser projection module projects perpendicularly along the working surface to be tested. The second detection component acquires the dimensions of the object under test from a top viewpoint. The third laser projection module is used to acquire planar geometric features. The second laser projection module is used to acquire the three-dimensional morphological features of the object under test on the other side opposite to the projection direction of the first laser projection module.

4. The detection device according to claim 3, characterized in that, It also includes a power component connected between the drive unit of the drive component and the second detection component, the power component being used to adjust the position of the second detection component relative to the first detection component.

5. A detection device according to any one of claims 1-4, characterized in that, The third detection component is symmetrically arranged on both sides of the working surface to be tested. The symmetrically arranged third detection component is used to simultaneously collect the side profile features and three-dimensional shape features of the object to be tested on both sides.

6. A detection device according to any one of claims 1-4, characterized in that, It also includes an active component connected to the third detection component, the active component being used to drive the third detection component to reciprocate horizontally along the working surface to be tested.

7. A detection device according to any one of claims 1-4, characterized in that, It also includes a fixture that reciprocates along the working surface to be tested, and the fixture is used to load the workpiece to be tested and transport it to the working surface to be tested.

8. The detection device according to claim 7, characterized in that, The fixture includes a rotating source and a suction cup connected in sequence. The rotating source is used to drive the suction cup to rotate around a vertical axis, and the suction cup is used to generate negative pressure adsorption force to fix the workpiece to be tested.

9. A detection method applicable to the detection device according to any one of claims 1-8, characterized in that, Includes the following steps: S1: Place the workpiece to be tested on the working surface to be tested; S2: The first detection component detects the workpiece from a top viewpoint, and the first image acquisition module projects along a direction perpendicular to the working surface to be measured to acquire the planar geometric features of the workpiece. The first laser projection module projects along the direction of the working surface to be measured, and collects the three-dimensional morphological features of the workpiece; S3: The third detection component detects the workpiece from a side view. The second image acquisition module projects along a direction parallel to the working surface to be measured to acquire the side contour features of the workpiece. The fourth laser projection module projects along a direction parallel to the working surface to be measured to acquire the side three-dimensional features of the workpiece through laser triangulation.

10. The detection method according to claim 9, characterized in that, It also includes the following steps: S2 specifically refers to S2-1: the first detection component and the second detection component perform scanning detection simultaneously; the first image acquisition module and the third laser projection module synchronously acquire planar geometric feature data of the workpiece; the first laser projection module and the second laser projection module project from two symmetrical directions respectively to acquire three-dimensional morphological feature data of the workpiece, and eliminate measurement blind spots through bidirectional complementary projection; Specifically, S3 is S3-1: the third detection components on both sides synchronously collect side data of the workpiece on both sides along the working surface to be tested; the second image acquisition module obtains the side contour features of the workpiece; and the fourth laser projection module obtains the side three-dimensional features of the workpiece.

Images