Three-axis automatic three-dimensional scanning equipment and scanning method

Abstract

The invention relates to the technical field of three-dimensional scanning, and discloses three-axis automatic three-dimensional scanning equipment and a scanning method.The three-axis automatic three-dimensional scanning equipment comprises a base, an adjusting mechanism is arranged at the top of the base, a scanning mechanism is arranged at the top of the adjusting mechanism, a limiting mechanism is arranged at the bottom of the adjusting mechanism, and the adjusting mechanism comprises a fixing table; the fixed table is fixedly connected to the bottom of the base, a first servo motor is fixedly connected to the bottom of the fixed table, a rotating rod is fixedly connected to the top of the first servo motor, and a rotating table is fixedly connected to the top of the rotating rod. A metal workpiece needing to be scanned is placed in the middle of the top of the containing table and located on the top of the magnetic base, the magnetic base is connected with external power supply equipment through the wiring groove for power supply, the workpiece can be fixed under the action of the magnetic base, and the stability of the workpiece is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of three-dimensional scanning technology, specifically to a three-axis automatic three-dimensional scanning device and scanning method. Background Technology

[0002] In modern industrial manufacturing, precision machining, product inspection and other fields, 3D scanning technology is the core means of obtaining spatial geometric information of objects. Its application scope is constantly expanding, which puts forward higher and higher requirements for the accuracy, efficiency, comprehensiveness and adaptability of scanning equipment. As core components in industrial production, the surface contour and dimensional accuracy of metal workpieces directly affect subsequent assembly and performance. Therefore, the demand for 3D scanning of metal workpieces is particularly urgent. Currently, there are still many shortcomings in the practical application of 3D scanning equipment, which restrict the quality and efficiency of scanning work. First, in terms of workpiece fixation, traditional scanning equipment mostly uses mechanical clamps to fix metal workpieces. This kind of fixation method is not only cumbersome and time-consuming, but also easily generates clamping stress for metal workpieces with complex shapes and precise surfaces, causing workpiece deformation and thus affecting the accuracy of scanning data. Meanwhile, mechanical fixtures have poor versatility; different fixtures need to be used for workpieces of different sizes and shapes, increasing operating and time costs and affecting scanning accuracy. Secondly, in terms of scanning dimension adjustment, traditional 3D scanning equipment often suffers from insufficient adjustment dimensions. Most equipment can only achieve movement or rotation in a single direction, making it difficult to adjust the posture of the workpiece in all directions. This results in a large number of scanning blind spots during the scanning process, making it impossible to fully acquire the geometric information of each surface of the workpiece. This problem is particularly prominent for metal workpieces with complex curved surfaces and concave structures, which seriously affects the integrity of the scanning data. Therefore, it is necessary to design a three-axis automatic 3D scanning device and scanning method to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a triaxial automatic three-dimensional scanning device and scanning method to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the technical solutions as described in claims 1-10: A triaxial automatic 3D scanning device includes a base, an adjustment mechanism on the top of the base, a scanning mechanism on the top of the adjustment mechanism, and a limit mechanism at the bottom of the adjustment mechanism. The adjustment mechanism includes a fixed platform, which is fixedly connected to the bottom of the base. A first servo motor is fixedly connected to the bottom of the fixed platform. A rotating rod is fixedly connected to the top of the first servo motor. A rotating platform is fixedly connected to the top of the rotating rod. A load-bearing frame is fixedly connected to the top right side of the rotating platform. A second servo motor is fixedly connected to the right side of the load-bearing frame. A rotating shaft is fixedly connected to the left side of the second servo motor. A connecting arm is fixedly connected to the right side of the load-bearing frame. A guide frame is fixedly connected to the top of the connecting arm. A support arm is fixedly connected to the periphery of the rotating shaft. A connecting frame is fixedly connected to the periphery of the support arm. A connecting ring is rotatably connected inside the connecting frame. A placement platform is fixedly connected to the top of the support arm. A magnetic seat is fixedly connected inside the placement platform. A fixed rod is fixedly connected to the right side of the placement platform.

[0005] Preferably, the rotating rod and the rotating platform are rotatably connected inside the fixed platform, and the rotating shaft is rotatably connected inside the load-bearing frame, so as to facilitate the rotation of the rotating platform by the rotating rod.

[0006] Preferably, the connecting ring is fixedly connected to the left side of the load-bearing frame, and the fixing rod is slidably connected inside the guide frame, so that the fixing rod can guide the placement platform.

[0007] Preferably, twelve magnetic bases are provided and symmetrically distributed inside the placement platform. A wiring groove with a circular shape is provided on the right side of the placement platform to facilitate fixing the metal workpiece through the magnetic bases.

[0008] Preferably, the load-bearing frame, connecting arm, guide frame, support arm, connecting frame and connecting ring are provided in two sets and symmetrically distributed on the left and right sides of the bottom of the placement platform. The fixing rods are provided in two sets and symmetrically distributed on the left and right sides of the placement platform. By providing two sets, the stability and balance of the placement platform can be ensured.

[0009] Preferably, the scanning mechanism includes a support base, which is fixedly connected to the rear side of the fixed platform. A hydraulic cylinder is fixedly connected to the top of the support base, and a movable seat is fixedly connected to the bottom of the hydraulic cylinder. The movable seat is slidably connected inside the support base, and a scanner is fixedly connected to the top front side of the movable seat.

[0010] Preferably, the front side of the scanner is inclined downwards, and the scanner is located on top of the placement table to facilitate scanning of the workpiece.

[0011] Preferably, the limiting mechanism includes a mounting frame, which is fixedly connected to the bottom of the fixed platform. A cylinder is fixedly connected to the bottom of the mounting frame, and a limiting shaft is fixedly connected to the top of the cylinder. The limiting shaft is inserted into the inside of the rotating platform.

[0012] Preferably, the limiting shaft passes through the interior of the fixed platform, which facilitates the limiting of the rotating platform.

[0013] A three-axis automatic 3D scanning method, wherein the scanning method of the aforementioned three-axis automatic 3D scanning device includes the following steps: S1. Fixing the workpiece First, place the metal workpiece to be scanned in the middle of the top of the placement stage, and place it on top of the magnetic base. The magnetic base is connected to an external power supply through a wiring slot. The magnetic base can fix the workpiece and ensure its stability. S2, Workpiece Scanning Once the workpiece is fixed on the top of the placement table, the moving seat can slide inside the support base via the hydraulic cylinder, thereby changing the height of the scanner and positioning it at a suitable height for scanning. S3. Workpiece orientation adjustment When scanning a workpiece, the first servo motor drives a rotating rod to rotate inside the fixed stage, causing the rotating stage to rotate and thus rotating the fixed workpiece horizontally. The rotation angle cannot exceed 360 degrees. After the workpiece is fully scanned horizontally, a cylinder drives a limit shaft to insert into the rotating stage and penetrate the fixed stage, thus limiting the rotation of the stage and preventing external factors from affecting the stability of the workpiece. Subsequently, the second servo motor drives a support arm fixedly connected to the rotating shaft to rotate, causing the support arm to move the placement stage back and forth. When the support arm rotates, it causes the connecting frame to rotate around the connecting ring, and the placement stage also causes the fixing rod to slide inside the guide frame, ensuring the stability of the placement stage angle adjustment. This allows for workpiece pitch angle adjustment, ensuring that the scanner can fully cover all surfaces of the workpiece. This effectively avoids the scanning blind spot problem caused by insufficient adjustment dimensions in traditional equipment. The front of the scanner is tilted downwards and faces the top of the placement stage, which can effectively reduce scanning shadows and improve the integrity and accuracy of scanning data. Through the horizontal rotation of the rotating stage, pitch angle adjustment, and scanner height adjustment, three-axis automatic scanning is achieved, improving the comprehensiveness and effect of scanning.

[0014] Compared with the prior art, the present invention provides a three-axis automatic three-dimensional scanning device and scanning method, which has the following beneficial effects: 1. This triaxial automatic 3D scanning equipment and method, through a set adjustment mechanism, allows for the 3D scanning of metal workpieces. The workpiece is placed at the center of the top of the placement stage, positioned on top of a magnetic base. The magnetic base is connected to an external power supply via a wiring slot. The magnetic base secures the workpiece, ensuring its stability. A first servo motor drives a rotating rod to rotate inside the fixed stage, causing the rotating stage to rotate within the fixed stage, thus rotating the fixed workpiece horizontally. The rotation angle cannot exceed 360 degrees. After the horizontal scanning of the workpiece is complete, a second servo motor drives a support arm fixedly connected to the rotating shaft to rotate, causing the support arm to rotate the placement stage back and forth. The rotation of the support arm causes the connecting frame to rotate around the connecting ring, and the placement stage also causes the fixed rod to slide inside the guide frame, ensuring stable angle adjustment of the placement stage. This allows for workpiece pitch angle adjustment, ensuring the scanner fully covers all surfaces of the workpiece and effectively avoiding the scanning blind spots caused by insufficient adjustment dimensions in traditional equipment.

[0015] 2. This triaxial automatic 3D scanning equipment and method, through its set scanning mechanism, allows the scanner height to be changed by the sliding seat inside the support base via a hydraulic cylinder after the metal workpiece is placed and fixed on the top of the platform. This allows the scanner to be positioned at a suitable height for scanning, enabling the scanner to flexibly adjust the scanning distance according to the height and size of the workpiece. This makes it suitable for close-range, precise scanning of small precision workpieces as well as for scanning larger workpieces, thus expanding the applicability of the equipment. The front of the scanner is tilted downwards and faces the top of the platform. This tilt angle design allows the scanning light to be closer to the workpiece surface, effectively reducing scanning shadows and improving the integrity and accuracy of the scanning data.

[0016] 3. The triaxial automatic 3D scanning equipment and scanning method, through the set limiting mechanism, after the workpiece has been fully scanned in the horizontal direction or the workpiece has been adjusted to the target posture, can drive the limiting axis to be inserted into the inside of the rotating table through the cylinder and penetrate into the inside of the fixed table, thereby limiting the rotation of the rotating table and preventing the rotating table from rotating due to external factors, ensuring that the workpiece maintains a stable posture during the scanning process, and further improving the reliability of the scanning data. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the left-side structure of the present invention; Figure 3 This is a schematic diagram of the adjustment mechanism. Figure 4 This is a schematic diagram of the top structure of the fixed platform; Figure 5 This is a schematic diagram of the outer structure of the rotating shaft; Figure 6 This is a schematic diagram of the scanning mechanism. Figure 7 This is a schematic diagram of the limiting mechanism.

[0018] In the diagram: 1. Base; 2. Adjustment mechanism; 3. Scanning mechanism; 4. Limiting mechanism; 21. Fixed platform; 22. First servo motor; 23. Rotating rod; 24. Rotating platform; 25. Support frame; 26. Second servo motor; 27. Connecting arm; 28. Guide frame; 29. ​​Rotating shaft; 291. Support arm; 292. Connecting frame; 293. Connecting ring; 294. Placement platform; 295. Magnetic base; 296. Fixed rod; 31. Support base; 32. Hydraulic cylinder; 33. Moving base; 34. Scanner; 41. Mounting bracket; 42. Cylinder; 43. Limiting shaft. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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 this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 according to the specific circumstances.

[0021] Example 1 Please see Figure 1-7 The present invention provides a technical solution: a three-axis automatic three-dimensional scanning device, including a base 1, an adjustment mechanism 2 is provided on the top of the base 1, a scanning mechanism 3 is provided on the top of the adjustment mechanism 2, and a limit mechanism 4 is provided at the bottom of the adjustment mechanism 2; The adjustment mechanism 2 includes a fixed platform 21, which is fixedly connected to the bottom of the base 21. A first servo motor 22 is fixedly connected to the bottom of the fixed platform 21. A rotating rod 23 is fixedly connected to the top of the first servo motor 22. A rotating platform 24 is fixedly connected to the top of the rotating rod 23. A load-bearing frame 25 is fixedly connected to the top right side of the rotating platform 24. A second servo motor 26 is fixedly connected to the right side of the load-bearing frame 25. A rotating shaft 29 is fixedly connected to the left side of the second servo motor 26. A connecting arm 27 is fixedly connected to the right side of the load-bearing frame 25. A guide frame 28 is fixedly connected to the top of the connecting arm 27. A support arm 291 is fixedly connected to the periphery of the rotating shaft 29. A connecting frame 292 is fixedly connected to the periphery of the support arm 291. A connecting ring 293 is rotatably connected inside the connecting frame 292. A placement platform 294 is fixedly connected to the top of the support arm 291. A magnetic seat 295 is fixedly connected inside the placement platform 294. A fixed rod 296 is fixedly connected to the right side of the placement platform 294.

[0022] The rotating rod 23 and the rotating platform 24 are rotatably connected inside the fixed platform 21, and the rotating shaft 29 is rotatably connected inside the load-bearing frame 25, so that the rotating rod 23 can drive the rotating platform 24 to rotate.

[0023] The connecting ring 293 is fixedly connected to the left side of the load-bearing frame 25, and the fixing rod 296 is slidably connected inside the guide frame 28, so that the fixing rod 296 can guide the placement platform 294.

[0024] There are twelve magnetic bases 295, which are symmetrically distributed inside the placement platform 294. The right side of the placement platform 294 has a wiring groove, which is circular, to facilitate fixing the metal workpiece through the magnetic bases 295.

[0025] The load-bearing frame 25, connecting arm 27, guide frame 28, support arm 291, connecting frame 292 and connecting ring 293 are provided in two sets and are symmetrically distributed on the left and right sides of the bottom of the placement platform 294. The fixing rod 296 is provided in two sets and is symmetrically distributed on the left and right sides of the placement platform 294. By setting two sets, the stability and balance of the placement platform 294 can be guaranteed.

[0026] Example 2 Please see Figure 1-7 Furthermore, based on Embodiment 1, the scanning mechanism 3 further includes a support base 31, which is fixedly connected to the rear side of the fixed platform 21. A hydraulic cylinder 32 is fixedly connected to the top of the support base 31, and a movable seat 33 is fixedly connected to the bottom of the hydraulic cylinder 32. The movable seat 33 is slidably connected to the inside of the support base 31, and a scanner 34 is fixedly connected to the top front side of the movable seat 33.

[0027] The scanner 34 is tilted downwards at the front and is located on top of the placement stage 294, which facilitates scanning of the workpiece.

[0028] Example 3 Please see Figure 1-7 Furthermore, based on Examples 1 and 2, the limiting mechanism 4 includes a mounting frame 41, which is fixedly connected to the bottom of the fixed platform 21. A cylinder 42 is fixedly connected to the bottom of the mounting frame 41, and a limiting shaft 43 is fixedly connected to the top of the cylinder 42. The limiting shaft 43 is inserted into the inside of the rotating platform 24.

[0029] The limiting shaft 43 passes through the interior of the fixed platform 21, which facilitates the limiting of the rotating platform 24.

[0030] A three-axis automatic 3D scanning method, wherein the scanning method of the aforementioned three-axis automatic 3D scanning device includes the following steps: S1. Fixing the workpiece First, place the metal workpiece to be scanned in the middle of the top of the placement stage 294 and on top of the magnetic base 295. The magnetic base 295 is connected to an external power supply through a wiring slot. The magnetic base 295 can fix the workpiece and ensure its stability. S2, Workpiece Scanning Once the workpiece is fixed on the top of the placement table 294, the movable seat 33 of the hydraulic cylinder 32 can slide inside the support base 31, thereby changing the height of the scanner 34 so that the scanner 34 is at a suitable height for scanning. S3. Workpiece orientation adjustment When the workpiece is scanned by the scanner 34, the first servo motor 22 drives the rotating rod 23 to rotate inside the fixed platform 21. This causes the rotating rod 23 to drive the rotating platform 24 to rotate inside the fixed platform 21, thus rotating the fixed workpiece horizontally. The rotation angle cannot exceed 360 degrees. After the workpiece is fully scanned horizontally, the cylinder 42 drives the limiting shaft 43 to be inserted into the rotating platform 24 and penetrates the fixed platform 21. This limits the rotation of the rotating platform 24, preventing it from rotating due to external factors and affecting the stability of the workpiece. Subsequently, the second servo motor 26 drives the support arm 291, which is fixedly connected to the rotating shaft 29, to rotate, causing the support arm 291 to drive the placement platform 294 to rotate. When the support arm 291 rotates, it causes the connecting frame 292 to rotate around the connecting ring 293. The placement stage 294 also causes the fixing rod 296 to slide inside the guide frame 28, ensuring the stability of the placement stage 294's angle adjustment. This allows for workpiece pitch angle adjustment, ensuring the scanner 34 fully covers all surfaces of the workpiece and effectively avoiding blind spots caused by insufficient adjustment dimensions in traditional equipment. The scanner 34 is tilted downwards and faces the top of the placement stage 294, effectively reducing scanning shadows and improving the integrity and accuracy of the scanning data. Through the horizontal rotation of the stage 24, pitch angle adjustment, and height adjustment of the scanner 34, three-axis automatic scanning is achieved, improving the comprehensiveness and effectiveness of the scan.

[0031] In actual operation, when this device is used, when it is necessary to perform three-dimensional scanning of a metal workpiece, the metal workpiece to be scanned is first placed in the middle of the top of the placement platform 294 and located on the top of the magnetic base 295. The magnetic base 295 is connected to the external power supply through the wiring slot. Under the action of the magnetic base 295, the workpiece can be fixed to ensure its stability. Once the workpiece is fixed on top of the placement stage 294, the moving seat 33 of the hydraulic cylinder 32 can slide inside the support base 31, thereby changing the height of the scanner 34. This allows the scanner 34 to be positioned at a suitable height for scanning, enabling it to flexibly adjust the scanning distance according to the height and size of the workpiece. This makes it suitable for close-range, precise scanning of small precision workpieces as well as for scanning larger workpieces, thus expanding the applicability of the equipment. The front of the scanner 34 is tilted downwards and faces the top of the placement stage 294. This tilt angle design allows the scanning light to be closer to the workpiece surface, effectively reducing scanning shadows and improving the integrity and accuracy of the scanning data. When the workpiece is scanned by the scanner 34, the first servo motor 22 drives the rotating rod 23 to rotate inside the fixed stage 21. The rotating rod 23 drives the rotating stage 24 to rotate inside the fixed stage 21, which in turn drives the fixed workpiece to rotate horizontally. The rotation angle cannot exceed 360 degrees. After the horizontal scanning of the workpiece is completed or the workpiece is adjusted to the target posture, the cylinder 42 drives the limiting shaft 43 to be inserted into the rotating stage 24 and penetrates the fixed stage 21. This limits the rotation of the rotating stage 24 and prevents it from rotating due to external factors. This ensures that the workpiece maintains a stable posture during the scanning process and further improves the reliability of the scanning data. Subsequently, the second servo motor 26 drives the support arm 291, which is fixedly connected to the outer periphery of the rotating shaft 29, to rotate. This causes the support arm 291 to rotate the placement stage 294 back and forth. When the support arm 291 rotates, it causes the connecting frame 292 to rotate around the connecting ring 293. The placement stage 294 also causes the fixed rod 296 to slide inside the guide frame 28, ensuring the stability of the angle adjustment of the placement stage 294. This allows for the adjustment of the workpiece's pitch angle, ensuring that the scanner 34 can fully cover all surfaces of the workpiece. This effectively avoids the scanning blind spot problem caused by insufficient adjustment dimensions in traditional equipment. The front of the scanner 34 is tilted downwards and faces the top of the placement stage 294, which can effectively reduce scanning shadows and improve the integrity and accuracy of the scanning data. Through the horizontal rotation of the rotating stage 24, the pitch angle adjustment, and the height adjustment of the scanner 34, three-axis automatic scanning is achieved, improving the comprehensiveness and effect of the scanning. The placement stage 294 is equipped with twelve symmetrically distributed magnetic bases 295. The magnetic bases 295 have the advantages of strong adsorption, convenient fixation, and quick loading and unloading. They can firmly fix the metal workpiece to be scanned and avoid the workpiece displacement during the scanning process, which would cause the scanning data to deviate. The circular wiring slot on the right side of the placement stage 294 can neatly store the connecting wires of the magnetic bases 295 and avoid the wires from getting tangled and affecting the operation of the equipment. The scanner used in this case is a Zeiss ATOS series model 34. In this application, all the first servo motor 22, the second servo motor 26, the hydraulic cylinder 32, the magnetic base 295, and the air cylinder 42 need to be connected to the same PLC controller to achieve automated operation and parameter adjustment. In addition, the scanner 34 needs to be connected to an external computer to achieve data transmission.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A triaxial automatic 3D scanning device, comprising a base (1), characterized in that: The base (1) is provided with an adjustment mechanism (2) at the top, a scanning mechanism (3) is provided at the top of the adjustment mechanism (2), and a limit mechanism (4) is provided at the bottom of the adjustment mechanism (2). The adjustment mechanism (2) includes a fixed platform (21), which is fixedly connected to the bottom of the base (21). A first servo motor (22) is fixedly connected to the bottom of the fixed platform (21). A rotating rod (23) is fixedly connected to the top of the first servo motor (22). A rotating platform (24) is fixedly connected to the top of the rotating rod (23). A load-bearing frame (25) is fixedly connected to the right side of the top of the rotating platform (24). A second servo motor (26) is fixedly connected to the right side of the load-bearing frame (25). A rotating shaft (29) is fixedly connected to the left side of the second servo motor (26). A connecting arm (27) is fixedly connected to the right side of the load-bearing frame (25). A guide frame (28) is fixedly connected to the top of the connecting arm (27). A support arm (291) is fixedly connected to the periphery of the rotating shaft (29). A connecting frame (292) is fixedly connected to the periphery of the support arm (291). A connecting ring (293) is rotatably connected inside the connecting frame (292). A placement platform (294) is fixedly connected to the top of the support arm (291). A magnetic seat (295) is fixedly connected inside the placement platform (294). A fixing rod (296) is fixedly connected to the right side of the placement platform (294).

2. The triaxial automatic three-dimensional scanning device according to claim 1, characterized in that: The rotating rod (23) and the rotating platform (24) are rotatably connected inside the fixed platform (21), and the rotating shaft (29) is rotatably connected inside the load-bearing frame (25).

3. The triaxial automatic three-dimensional scanning device according to claim 1, characterized in that: The connecting ring (293) is fixedly connected to the left side of the load-bearing frame (25), and the fixing rod (296) is slidably connected to the inside of the guide frame (28).

4. The triaxial automatic three-dimensional scanning device according to claim 1, characterized in that: The magnetic base (295) is provided in twelve units and is symmetrically distributed inside the placement platform (294). The placement platform (294) has a wiring groove on the right side and is circular.

5. A triaxial automatic three-dimensional scanning device according to claim 1, characterized in that: The load-bearing frame (25), connecting arm (27), guide frame (28), support arm (291), connecting frame (292) and connecting ring (293) are provided in two sets and are symmetrically distributed on the left and right sides of the bottom of the placement platform (294). The fixing rod (296) is provided in two sets and is symmetrically distributed on the left and right sides of the placement platform (294).

6. The triaxial automatic three-dimensional scanning device according to claim 1, characterized in that: The scanning mechanism (3) includes the support base (31), which is fixedly connected to the rear side of the fixed platform (21). A hydraulic cylinder (32) is fixedly connected to the top of the support base (31), and a movable seat (33) is fixedly connected to the bottom of the hydraulic cylinder (32). The movable seat (33) is slidably connected to the inside of the support base (31), and a scanner (34) is fixedly connected to the top front side of the movable seat (33).

7. A triaxial automatic three-dimensional scanning device according to claim 6, characterized in that: The scanner (34) is inclined downward on the front side and is located on top of the placement platform (294).

8. A triaxial automatic three-dimensional scanning device according to claim 1, characterized in that: The limiting mechanism (4) includes a mounting frame (41), which is fixedly connected to the bottom of the fixed platform (21). A cylinder (42) is fixedly connected to the bottom of the mounting frame (41), and a limiting shaft (43) is fixedly connected to the top of the cylinder (42). The limiting shaft (43) is inserted into the inside of the rotating platform (24).

9. A triaxial automatic three-dimensional scanning device according to claim 8, characterized in that: The limiting shaft (43) passes through the interior of the fixed platform (21).

10. A triaxial automatic three-dimensional scanning method, characterized in that: The scanning method of the above-mentioned triaxial automatic 3D scanning equipment includes the following steps: S1. Fixing the workpiece First, place the metal workpiece to be scanned in the middle of the top of the placement stage (294) and on top of the magnetic base (295). The magnetic base (295) is connected to the external power supply through the wiring slot. Under the action of the magnetic base (295), the workpiece can be fixed to ensure its stability. S2, Workpiece Scanning Once the workpiece is fixed on the top of the placement table (294), the moving seat (33) carried by the hydraulic cylinder (32) can slide inside the support base (31), thereby changing the height of the scanner (34) so ​​that the scanner (34) is at a suitable height for scanning. S3. Workpiece orientation adjustment When the workpiece is scanned by the scanner (34), the first servo motor (22) drives the rotating rod (23) to rotate inside the fixed platform (21), which in turn drives the rotating platform (24) to rotate inside the fixed platform (21), thus rotating the fixed workpiece horizontally. The rotation angle cannot exceed 360 degrees. After the horizontal scanning of the workpiece is completed, the cylinder (42) drives the limiting shaft (43) to be inserted into the rotating platform (24) and penetrates the fixed platform (21), thus limiting the rotation of the rotating platform (24) and preventing it from rotating due to external factors, which would affect the stability of the workpiece. Then, the second servo motor (26) drives the support arm (291) fixedly connected to the outside of the rotating shaft (29) to rotate, so that the support arm (291) drives the placement platform ( 294) Rotate back and forth. When the support arm (291) rotates, it will drive the connecting frame (292) to rotate around the connecting ring (293). The placement stage (294) will also drive the fixing rod (296) to slide inside the guide frame (28), ensuring the stability of the angle adjustment of the placement stage (294). Thus, the workpiece can be adjusted in pitch angle, ensuring that the scanner (34) can fully cover all surfaces of the workpiece. This effectively avoids the scanning blind spot problem caused by insufficient adjustment dimensions in traditional equipment. The front side of the scanner (34) is tilted downward and faces the top of the placement stage (294), which can effectively reduce scanning shadows and improve the integrity and accuracy of scanning data. By rotating the horizontal direction of the rotating stage (24), adjusting the pitch angle, and adjusting the height of the scanner (34), three-axis automatic scanning is achieved, improving the comprehensiveness and effect of scanning.

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