A laser scanning measuring instrument for stone processing

Abstract

The present application relates to the technical field of measuring devices, and discloses a laser scanning measuring instrument for stone processing, comprising an instrument base, a scanning window, and an interface base. The interface base is located in the non-scanning area of ​​the scanning window. Fans are provided on both sides of the scanning window, and the fans on both sides are located in the non-scanning area of ​​the scanning window. A support frame for fixing the fans on both sides is installed on the top of the interface base. Folding protective plates for protecting the scanning window are symmetrically provided on both sides of the top of the instrument base. The folding protective plates include a first-section arc protective plate, a second-section arc protective plate, and a third-section arc protective plate. After the first-section arc protective plate is folded outward, it forms an air duct with a flared end and a narrowed end with the second-section arc protective plate. The fan is located at the flared end of the air duct and blows air toward the narrow end of the air duct. The present application realizes the combination of dynamic airflow cleaning and mechanical protection, maximizes the dust removal efficiency through the air duct structure, and is beneficial for the laser scanning measuring instrument to maintain measurement accuracy and stability in the dusty environment of stone processing.

Description

Technical Field

[0001] The present application relates to the technical field of measuring devices, and in particular to a laser scanning measuring instrument for stone processing. Background Art

[0002] In the stone processing industry, laser scanning measuring instruments have become a core component of modern intelligent production lines. Using high-precision 3D laser scanning technology, these instruments can rapidly capture critical data such as rough stone geometry and surface contours, automatically generating digital models that provide precise benchmarks for subsequent cutting, engraving, and polishing processes. Furthermore, by integrating with CNC machining centers, laser scanning data can be directly converted into machining path planning, automating the entire process from measurement to processing and significantly reducing the risk of errors caused by manual intervention.

[0003] However, in actual production environments, laser scanners face severe challenges with dust pollution. Stone cutting, grinding, and polishing processes generate large quantities of fine stone dust particles ranging in size from 0.1 to 10 microns. Due to their light weight and large surface area, these particles can remain suspended in the air for extended periods, forming aerosols. When these dust particles adhere to key components of the laser scanner, such as the optical window and reflector assembly, they form an uneven contamination layer, causing diffuse reflection and energy attenuation of the incident laser beam, severely impacting signal reception quality. Furthermore, the continued accumulation of dust can alter the transmittance and refractive properties of the optical system.

[0004] Traditional manual wiping or regular cleaning methods are not only inefficient, but may also affect the life of the equipment due to frequent contact with optical components. Therefore, how to maintain the measurement accuracy and stability of laser scanners in dusty environments has become a technical problem that the industry urgently needs to solve. Summary of the Invention

[0005] This application solves the technical problems in the prior art that affect the measurement accuracy and stability of laser scanners in dusty environments by providing a laser scanning measuring instrument for stone processing. It combines dynamic airflow cleaning with mechanical protection, and maximizes dust removal efficiency through a deformable air duct structure, which is beneficial for the laser scanning measuring instrument to maintain measurement accuracy and stability in the dusty environment of stone processing.

[0006] The present application provides a laser scanning measuring instrument for stone processing, comprising an instrument base, a scanning window located on the instrument base, and an interface base located on one side of the instrument base, wherein the interface base is located in a non-scanning area of ​​the scanning window, fans are provided on both sides of the scanning window, the fans on both sides are located in the non-scanning area of ​​the scanning window, and the wind direction blows directly in front of the scanning window, and a support frame for fixing the fans on both sides is installed on the top of the interface base.

[0007] Furthermore, folding protective plates for protecting the scanning window are symmetrically arranged on both sides of the top of the instrument base. The folding protective plates on both sides are unfolded and merged to form a protection for the scanning window. The folding protective plate is horizontally slid on one end of the folding protective plate close to the interface base on the support frame, so that the folding protective plate slides horizontally to the non-scanning area where the support frame is located.

[0008] Furthermore, the middle part of the folding protective plate is convex, and the horizontal sliding section of the folding protective plate is located between the scanning window and the fan. The folding protective plate includes: a first-section arc guard plate, one end of which is horizontally slidably set on the support frame, and the other end faces the scanning window; a second-section arc guard plate, hinged to the end of the first-section arc guard plate away from the support frame; a third-section arc guard plate, hinged to the end of the second-section arc guard plate away from the first-section arc guard plate; wherein, after the first-section arc guard plate is folded outward, it forms an air duct with a flared end and a narrow end with the second-section arc guard plate, and the fan is located at the flared end of the air duct and blows air toward the narrow end of the air duct.

[0009] Furthermore, the support frame carries a placement frame, and an upper cover plate and a lower cover plate are placed in the placement frame. The upper cover plate is arranged on the top of the first-section arc guard plate and the second-section arc guard plate after they are folded, and the lower cover plate is arranged on the bottom of the first-section arc guard plate and the second-section arc guard plate after they are folded. The upper cover plate and the lower cover plate are respectively used to seal the upper and lower parts of the air duct. After the three-section arc guard plates are folded, they are located on the outside of the air inlet surface of the fan, and air holes are opened on the three-section arc guard plates.

[0010] Furthermore, a hanging plate is fixedly connected to the lower cover plate, and the hanging plate is hung in the opening formed at the folding part of the second-section arc guard plate and the third-section arc guard plate; three limiting columns are fixed to the bottom surface of the lower cover plate, and the three limiting columns are respectively located on the inner sides of the first-section arc guard plate, the second-section arc guard plate and the third-section arc guard plate after the folding protective plate is folded.

[0011] Furthermore, a male buckle is fixed to the end of the three-section arc guard plate in the folding protective plate on one side away from the two-section arc guard plate, and a female buckle is fixed to the end of the folding protective plate on the other side. The male buckle and the female buckle form a lock for the folding protective plates on both sides after they are unfolded and merged.

[0012] Furthermore, the support frame includes: a column, two of which are vertically arranged on both sides of the top of the interface base; a fan frame, two of which are fixedly connected to the columns on both sides; a sliding bar, located between the column and the scanning window and horizontally fixed on the column, and the end of the first arc guard plate away from the second arc guard plate is slidably connected to the sliding bar; a connecting cross bar, fixedly connected between the columns on both sides, and the connecting cross bar is provided with a waist-shaped connecting hole plate for fitting the interface base.

[0013] Furthermore, a groove is provided on the column, a rubber ring is placed in the groove, a plug-in board is fixed on the fan frame, and the plug-in board is used to be plugged into the rubber ring.

[0014] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0015] Because fans are set on both sides of the scanning window, they form a stable directional airflow barrier, effectively blocking dust from entering the optical path and preventing measurement signal attenuation or distortion, which not only ensures measurement accuracy and equipment stability, but also achieves efficient energy utilization.

[0016] 2. Since foldable protective plates are set on both sides of the scanning window, when the laser scanner is not in use, the foldable protective plates on both sides are unfolded and merged to form a protection for the scanning window. When the laser scanner is turned on and used, the foldable protective plates form an air duct that gradually changes from an expanded opening to a narrow opening. The fan is located at the expanded end and blows air into the air duct. When passing through the narrow opening, the airflow accelerates and concentrates to blow toward the front of the scanning window, which helps to blow away the dust on the scanning window. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the laser scanning measuring instrument for stone processing in an embodiment of the present application;

[0018] Figure 2 for Figure 1 Another perspective of the picture;

[0019] Figure 3 for Figure 2 Schematic diagram of the middle part structure;

[0020] Figure 4 for Figure 1 Schematic diagram of the middle folding protective plate after it is unfolded and merged;

[0021] Figure 5 Schematic diagram mainly illustrating the upper cover plate and the lower cover plate in the embodiment of the present application;

[0022] Figure 6 for Figure 5 Another perspective of the picture;

[0023] Figure 7 This is a schematic diagram mainly illustrating the structure of the support frame in the embodiment of the present application;

[0024] In the figure: 1. Instrument base; 2. Scanning window; 3. Interface base; 4. Fan; 5. Support frame; 6. Folding protective plate; 7. Placement frame; 8. Upper cover; 81. Limit column; 9. Lower cover; 91. Hanging plate; 61. One-section arc guard plate; 62. Two-section arc guard plate; 63. Three-section arc guard plate; 631. Air hole; 101. Male buckle; 102. Female buckle; 51. Column; 52. Fan frame; 53. Sliding bar; 54. Connecting cross bar; 541. Waist-shaped connecting hole plate; 511. Groove; 512. Rubber ring; 521. Plug plate. DETAILED DESCRIPTION

[0025] In order to better understand the technical solution of the present application, the technical solution of the present application will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0026] Reference Figure 1 、 Figure 2 and Figure 3 A laser scanning measuring instrument for stone processing includes an instrument base 1, a scanning window 2, an interface base 3, a fan 4, a support frame 5, and a folding protective plate 6.

[0027] The instrument base 1 is the main component of the laser scanning measuring instrument, housing various electronic components. The scanning window 2, made of a highly rigid, transparent material and housing a laser emission module, boasts excellent light transmittance and wear resistance. Mounted to the top surface of the instrument base 1, its edges are sealed with rubber strips for waterproofing and dustproofing, forming a hermetically sealed connection with the instrument base 1. The interface base 3, located in the non-scanning area behind the scanning window 2, is used to connect power, data transmission cables, and other components.

[0028] The support frame 5 is mounted on top of the interface base 3. Threaded holes can be pre-set during the design and manufacture of the interface base 3, and the support frame 5 can be bolted to the interface base 3. Two fans 4 are provided, one on each side of the scanning window 2. Both fans 4 are located above the interface base 3 and secured by the support frame 5. The fans 4 can be connected to the power supply line of the laser scanner, and power is supplied to the fans 4 simultaneously with the laser scanner. The airflow direction of the fans 4 is forward.

[0029] The laser scanner intelligently adjusts the operating mode of Fan 4 based on the dust concentration in the working environment to ensure a clean surface of Scan Window 2 and optimize energy consumption. In low-dust environments, Fan 4 defaults to intermittent operation, automatically shutting off after a period of purge time to avoid continuous energy consumption. This is ideal for low-dust environments or short-duration operations, balancing cleaning needs with energy consumption. In high-dust environments, when the laser scanner detects a high concentration of suspended dust in the environment, it automatically commands Fan 4 to operate continuously.

[0030] As a result, the fans 4 on both sides form a stable directional airflow barrier, effectively blocking dust from entering the optical path and preventing the measurement signal from attenuating or distorting, thereby ensuring measurement accuracy and equipment stability and achieving efficient energy utilization.

[0031] There are two folding protective plates 6, which are symmetrically arranged on both sides of the top of the instrument base 1. The folding protective plates 6 on both sides will form a protection for the scanning window 2 after being unfolded and merged, and the folding protective plates 6 on both sides are horizontally slidably set on the support frame 5. When the laser measuring instrument is turned on and used, the folding protective plates 6 on both sides are folded and slid backward to make the folding protective plates 6 away from the scanning window 2, so as not to affect the laser scanning field of view.

[0032] Reference Figures 1-4 The folding protective plate 6 is arc-shaped as a whole, and the middle part is convex. The folding protective plate 6 is a three-section hinged design. The folding protective plate 6 includes a first-section arc guard plate 61, a second-section arc guard plate 62, and a third-section arc guard plate 63 hinged in sequence from head to tail. The hinge axis is vertical, and one end of the first-section arc guard plate 61 is horizontally slidably set on the support frame 5, and the other end faces the scanning window 2. After the first-section arc guard plate 61 slides horizontally toward the scanning window 2, the top inner surface of the last-section arc guard plate 61 can be attached to the top outer surface of the scanning window 2, and the bottom lower surface can be attached to the upper surface of the instrument base 1. Similarly, after the first-section arc guard plate 61 is attached to the top outer surface of the scanning window 2, the second-section arc guard plate 62 and the third-section arc guard plate 63 are unfolded in sequence, and their respective top inner surfaces can be attached to the top outer surface of the scanning window 2, and the bottom lower surface can be attached to the upper surface of the instrument base 1. In addition, a male buckle 101 is fixed to the end of the three-section arc guard plate 63 in the folding protective plate 6 on one side away from the two-section arc guard plate 62, and a female buckle 102 is fixed to the end of the folding protective plate 6 on the other side. The male buckle 101 and the female buckle 102 form a lock for the folding protective plates 6 on both sides after they are unfolded and merged to ensure the stability of the enclosure.

[0033] Therefore, when the laser scanner is not in use, the foldable protective plates 6 on both sides are unfolded and combined to form a protection for the scanning window 2. When the laser scanner is turned on and used, the male buckle 101 is removed from the female buckle 102, and then the two-section arc guard plate 62 is swung outward. After swinging to a preset angle, the one-section arc guard plate 61 and the two-section arc guard plate 62 can form an air duct with a flared end and a narrow end. Then the folding protective plate 6 is moved to the rear end, and the fan 4 is located at the flared end of the air duct. Then the three-section arc guard plate 63 is swung so that the three-section arc guard plate 63 is folded to the outside of the air inlet surface of the fan 4. In addition, a number of air holes 631 are provided on the three-section arc guard plate 63. The air source of the air inlet surface of the fan 4 can enter the inner side of the three-section arc guard plate 63 from the air holes 631. At this time, the one-section arc guard plate 61 and the two-section arc guard plate 62 form an air duct that gradually changes from a flared end to a narrow end. The fan 4 is located at the flared end and blows air into the air duct. When passing through the narrow end, the air flow accelerates and blows concentratedly toward the front of the scanning window 2, which helps to blow away the dust on the scanning window 2.

[0034] Refer again Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 The support frame 5 carries a placement frame 7, and two upper cover plates 8 and two lower cover plates 9 are placed in the placement frame 7. The upper cover plate 8 is covered on the top of the first-section arc guard plate 61 and the second-section arc guard plate 62 after folding, and the lower cover plate 9 is covered on the bottom of the first-section arc guard plate 61 and the second-section arc guard plate 62 after folding. After the protective plates are folded, the upper cover plate 8 and the lower cover plate 9 respectively cover the top and bottom of the air duct to prevent airflow leakage and ensure wind pressure concentration. In addition, three limiting columns 81 are fixed to the bottom surface of the upper cover plate 8, and the three limiting columns 81 are respectively located on the inner sides of the first-section arc guard plate 61, the second-section arc guard plate 62 and the third-section arc guard plate 63 after the folding protective plate 6 is folded. The limiting columns 81 can prevent the upper cover plate 8 from separating from the top of the arc guard plate; a hanging plate 91 is fixedly connected to the lower cover plate 9, and the hanging plate 91 is hung in the opening formed at the folding part of the second-section arc guard plate 62 and the third-section arc guard plate 63, and the hanging plate 91 can be used to hang the lower cover plate 9.

[0035] Therefore, when the upper cover plate 8 and the lower cover plate 9 cover the top and bottom of the air duct respectively, the wind source on the air inlet surface of the fan 4 can enter the inner side of the three-section arc guard plate 63 from the wind hole 631, or can enter from the opening formed by the folding of the second-section arc guard plate 62 and the third-section arc guard plate 63, as well as from the gap between the end of the three-section arc guard plate 63 away from the second-section arc guard plate 62 and the end of the first-section arc guard plate 61 close to the support frame 5. There are multiple air inlets to ensure the airflow in the air duct.

[0036] Reference Figure 4 and Figure 7The support frame 5 includes a column 51, a fan frame 52, a sliding bar 53, and a connecting crossbar 54. There are two columns 51, which are vertically arranged on both sides of the top of the interface base 3. Grooves 511 are provided at the upper and lower ends of the column 51, and rubber rings 512 are placed in both grooves 511. There is a distance between the column 51 and the scanning window 2, which is the horizontal movement distance of the folding protective plate 6. There are two fan frames 52, and the fan 4 is detachably connected to the fan frame 52. Two plug-in boards are fixed to the side of the fan frame 52 close to the column 51. The two plug-in boards are used to be inserted into the grooves 511 respectively, and the rubber rings 512 are placed on the pin boards to reduce the vibration generated by the fan 4. The sliding bar 53 is located between the upright posts 51 and the scanning window 2 and is fixed horizontally to the upright posts 51. Two sliding bars 53 can be installed horizontally on each upright post 51. The end of the first-stage arc guard plate 61 away from the second-stage arc guard plate 62 is slidably connected to the sliding bar 53. The connecting crossbar 54 is fixedly connected between the upright posts 51 on both sides. The connecting crossbar 54 is provided with a waist-shaped connecting hole plate 541 for contacting the interface base 3. Bolts can be passed through the waist-shaped connecting hole plate 541 to secure the support frame 5 to the interface base 3.

[0037] This application can explain its functional principles through the following operation methods:

[0038] A directional airflow is formed by the fans 4 on both sides of the scanning window 2 to blow away attached dust and block suspended dust from entering the optical path, thereby reducing the interference of dust on the laser signal. The folding protective plate 6 is unfolded to form an air duct structure with an expanded opening gradually becoming a narrow opening. The Bernoulli effect is used to accelerate the airflow, concentrate on blowing the scanning window 2, and enhance the dust removal efficiency. When the laser scanner is not in use, the folding protective plates 6 on both sides are unfolded and merged to form a protection for the scanning window 2.

[0039] In addition, a startup program can be set to set the start time of fan 4, and fan 4 can be turned off after blowing for a period of time. If the laser scanner determines that there is a lot of suspended dust in the environment, it can send a command to keep fan 4 on all the time. The two airflows formed can prevent dust from entering the optical path of the laser measuring instrument.

[0040] In this way, the airflow continuously cleans the scanning window 2, reduces laser scattering or signal attenuation caused by dust adhesion, ensures the accuracy of measurement data, and avoids physical damage to optical components caused by frequent manual cleaning. The folding protective plate 6 forms an air duct to ensure efficient use of airflow, which is suitable for harsh industrial scenarios such as stone processing.

[0041] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

[0042] The above is only a preferred specific implementation method of the embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

Claims

1. A laser scanning measuring instrument for stone processing, comprising an instrument base (1), a scanning window (2) located on the instrument base (1), and an interface base (3) located on one side of the instrument base (1), wherein the interface base (3) is located in a non-scanning area of ​​the scanning window (2), and is characterized in that: Fans (4) are provided on both sides of the scanning window (2), the fans (4) on both sides are located in the non-scanning area of ​​the scanning window (2), and the wind direction blows directly in front of the scanning window (2), and a support frame (5) for fixing the fans (4) on both sides is installed on the top of the interface base (3); Folding protective plates (6) for protecting the scanning window (2) are symmetrically arranged on both sides of the top of the instrument base (1); the folding protective plates (6) on both sides are unfolded and combined to form a protection for the scanning window (2); one end of the folding protective plate (6) close to the interface base (3) is horizontally slidably arranged on the support frame (5), so that the folding protective plate (6) slides horizontally to the non-scanning area where the support frame (5) is located; The middle portion of the folding protective plate (6) is convex, and the horizontal sliding section of the folding protective plate (6) is located between the scanning window (2) and the fan (4). The folding protective plate (6) comprises: A segment arc guard plate (61), one end of which is horizontally slidably disposed on the support frame (5) and the other end of which faces the scanning window (2); A second-section arc guard plate (62) is hinged to one end of the first-section arc guard plate (61) away from the support frame (5); A three-section arc guard plate (63) is hinged to one end of the two-section arc guard plate (62) away from the one-section arc guard plate (61); The first arc guard plate (61) is folded outward to form an air duct with a widened opening at one end and a narrow opening at the other end together with the second arc guard plate (62); the fan (4) is located at the widened opening of the air duct and blows air toward the narrow opening of the air duct.

2. The laser scanning measuring instrument for stone processing according to claim 1, characterized in that: The support frame (5) carries a placement frame (7), and an upper cover plate (8) and a lower cover plate (9) are placed in the placement frame (7). The upper cover plate (8) is covered on the top of the first-section arc guard plate (61) and the second-section arc guard plate (62) after folding, and the lower cover plate (9) is covered on the bottom of the first-section arc guard plate (61) and the second-section arc guard plate (62) after folding. The upper cover plate (8) and the lower cover plate (9) are respectively used to seal the upper and lower parts of the air duct. After folding, the three-section arc guard plate (63) is located outside the air inlet surface of the fan (4), and the three-section arc guard plate (63) is provided with an air hole (631).

3. The laser scanning measuring instrument for stone processing according to claim 2, characterized in that: A hanging plate (91) is fixedly connected to the lower cover plate (9), and the hanging plate (91) is hung in an opening formed at the folding position of the second-section arc guard plate (62) and the third-section arc guard plate (63); three limiting columns (81) are fixed to the bottom surface of the upper cover plate (8), and the three limiting columns (81) are respectively located on the inner sides of the first-section arc guard plate (61), the second-section arc guard plate (62) and the third-section arc guard plate (63) after the folding protective plate (6) is folded.

4. The laser scanning measuring instrument for stone processing according to claim 1, characterized in that: A male buckle (101) is fixed to the end of the three-section arc guard plate (63) in the folding guard plate (6) on one side away from the two-section arc guard plate (62), and a female buckle (102) is fixed to the end of the folding guard plate (6) on the other side. The male buckle (101) and the female buckle (102) form a locking mechanism for the folding guard plates (6) on both sides after they are unfolded and combined.

5. The laser scanning measuring instrument for stone processing according to claim 1, characterized in that: The support frame (5) comprises: Two upright posts (51) are provided and are respectively vertically arranged on both sides of the top of the interface base (3); Two fan frames (52) are provided and are respectively fixedly connected to the upright posts (51) on both sides; A sliding bar (53) is located between the column (51) and the scanning window (2) and is horizontally fixed to the column (51), and one end of the first-stage arc guard plate (61) away from the second-stage arc guard plate (62) is slidably connected to the sliding bar (53); A connecting crossbar (54) is fixedly connected between the upright posts (51) on both sides, and a waist-shaped connecting hole plate (541) for fitting with the interface base (3) is provided on the connecting crossbar (54).

6. The laser scanning measuring instrument for stone processing according to claim 5, characterized in that: A groove (511) is provided on the column (51), a rubber ring (512) is placed in the groove (511), a plug-in board (521) is fixed on the fan frame (52), and the plug-in board (521) is used to be plugged into the rubber ring (512).

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