A flatness detection mechanism for sheet metal repair

Abstract

The utility model discloses a kind of flatness detection mechanisms of sheet metal repair, it is related to sheet metal processing detection technical field, the detection mechanism includes: through support leg fixedly arranged on base for placing sheet metal's placement table, the base is equipped with the detection piece for detecting the flatness of sheet metal by moving mechanism, the detection piece can be freely moved and can be lifted, the moving mechanism is also equipped with adjusting mechanism for adjusting the angle of detection piece to meet the irregular profile sheet metal detection demand;The moving mechanism includes: the front-back moving piece of driving detection piece front-back movement and the left-right moving component of driving detection piece left-right movement, the detection piece is fixedly arranged on left-right moving component by adjusting mechanism.The device when using, overcome the problem that detection equipment cannot carry out all-around coverage detection to sheet metal surface in prior art, especially when facing the sheet metal part with complex curved surface, irregular profile, easy to miss local concave, convex or tiny deformation area.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing and inspection technology, specifically to a flatness inspection mechanism for sheet metal repair. Background Technology

[0002] Sheet metal repair is a technique used to repair sheet metal damage. Sheet metal flatness inspection is an important step in assessing whether the surface has been restored to its original flatness after sheet metal repair. Sheet metal flatness inspection can ensure that there are no ripples, dents or uneven areas on the surface of the repaired area, thereby ensuring the aesthetics and structural integrity of the sheet metal surface.

[0003] A search revealed that Chinese patent application CN218765221U discloses a novel flatness detection device. In this invention, when the ball slides along the upper side wall of a ferrous component, it slides inside the support cylinder under the influence of the ferrous component, causing the return spring to extend and retract. This allows the flatness of the ferrous component to be detected based on the pressure change amplitude detected by the pressure sensor. The device is simple, quick, and offers high measurement accuracy.

[0004] However, the following technical problems still exist when implementing the above technical solutions: the detection head can only move vertically to contact the sheet metal surface, and it is difficult to move flexibly in the front, back and left and right directions. This limitation makes it impossible for the detection equipment to perform all-round coverage detection of the sheet metal surface. Especially when facing sheet metal parts with complex curved surfaces and irregular contours, it is easy to miss local depressions, protrusions or small deformation areas.

[0005] Therefore, providing a sheet metal repair flatness detection mechanism that can adjust the detection angle in real time for complex curved surfaces during use is a problem that this utility model urgently needs to solve. Utility Model Content

[0006] To address the aforementioned technical problems, the purpose of this utility model is to overcome the limitations of existing testing equipment in achieving comprehensive coverage of sheet metal surfaces, especially when dealing with sheet metal parts with complex curved surfaces and irregular contours, where it is easy to miss local depressions, protrusions, or minor deformation areas. Therefore, this utility model provides a sheet metal repair flatness testing mechanism that can adjust the testing angle in real time for complex curved surfaces during use.

[0007] To achieve the above objectives, this utility model provides a sheet metal repair flatness inspection mechanism. The inspection mechanism includes: a placement platform for placing sheet metal, fixed to a base by support legs; a freely movable and height-adjustable inspection component for inspecting the flatness of the sheet metal, mounted on the base via a moving mechanism; and an adjustment mechanism for adjusting the angle of the inspection component to meet the inspection requirements of sheet metal with irregular contours.

[0008] The moving mechanism includes: a forward and backward moving component that drives the detection component to move forward and backward, and a left and right moving component that drives the detection component to move left and right. The detection component is fixedly mounted on the left and right moving component by an adjustment mechanism.

[0009] Preferably, the forward and backward moving component includes: two sets of slide rails fixedly disposed on mutually spaced edges of the base, each set of slide rails having a sliding plate slidably mounted on it, the left and right moving component being fixedly disposed between the two sets of sliding plates, and one set of sliding plates having a driving component for driving the sliding plate to slide on the slide rail.

[0010] Preferably, the driving component includes: a rack fixedly disposed on the side of the base, a servo motor fixedly disposed on the sliding plate, and the output shaft of the servo motor being vertically disposed and having a gear meshing with the rack fixedly sleeved at its top end.

[0011] Preferably, the bottom surface of each set of sliding plates is provided with a guide rail that rotatably contacts the side of the slide rail.

[0012] Preferably, the left and right moving component includes: a mounting base fixedly disposed between the two sets of sliding plates, the mounting base having a horizontally disposed mounting groove, a screw being rotatably disposed in the mounting groove, a threaded block being threadedly sleeved on the screw and slidingly engaging with the inner wall of the mounting groove, a drive motor having a horizontally disposed output shaft fixedly disposed on the mounting base and its top end being fixedly connected to the screw, and an adjusting mechanism being fixedly disposed on the threaded block.

[0013] Preferably, the adjusting mechanism includes: a hydraulic rod, an electric telescopic rod, and a mounting plate; wherein,

[0014] The hydraulic rod is fixedly mounted on the bottom surface of the threaded block, and the output shaft of the hydraulic rod is vertically downward and a fixed plate is fixedly mounted on its top end. Electric telescopic rods are hinged to the opposite sides of the fixed plate. A slider is hinged to one end of each of the two sets of electric telescopic rods. The mounting plate has grooves for the two sets of sliders to slide.

[0015] Preferably, the placement platform is provided with a limiting mechanism for clamping and limiting sheet metal of different sizes.

[0016] Preferably, the limiting mechanism includes: a rotary motor fixedly mounted on the base, the output shaft of the rotary motor being vertically upward and having a rotating rod fixedly mounted at its top end, with connecting rods hinged to both ends of the rotating rod, and clamping plates that contact the side of the sheet metal being hinged to one end of each of the two sets of connecting rods, and a limiting groove for the clamping plates to slide on the placement platform.

[0017] Preferably, the testing component includes: a housing with a fixed mounting plate bottom surface, a spring fixedly installed inside the housing, and a testing head for detecting sheet metal flatness that slides against the inner wall of the housing at the lower end of the spring.

[0018] According to the above technical solution, the sheet metal repair flatness detection mechanism provided by this utility model has the following advantages in use: by moving along the XYZ three axes and adjusting the angle, it breaks through the limitations of the traditional fixed detection head, and can cover the complex curved surfaces, corner areas and irregular contours of sheet metal parts, eliminating blind spots in the detection; the adjustment mechanism ensures that the detection head is always perpendicular to the surface being measured, improving the measurement accuracy, and is especially suitable for special structures such as arcs and inclined surfaces.

[0019] Other features and advantages of this utility model will be described in detail in the following detailed description section; and all parts not covered in this utility model are the same as or can be implemented using existing technology. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 A three-dimensional structural diagram of a sheet metal repair flatness detection mechanism provided in a preferred embodiment. Figure 1 ;

[0022] Figure 2 A three-dimensional structural diagram of a sheet metal repair flatness detection mechanism provided in a preferred embodiment. Figure 2 ;

[0023] Figure 3 A plan view of a sheet metal repair flatness detection mechanism provided in a preferred embodiment;

[0024] Figure 4 yes Figure 3 Sectional view of AA;

[0025] Figure 5 This is a three-dimensional structural diagram of the limiting mechanism for the flatness detection mechanism of sheet metal repair provided in a preferred embodiment;

[0026] Figure 6 This is a three-dimensional structural diagram of the left-right moving component of the sheet metal repair flatness detection mechanism provided in a preferred embodiment;

[0027] Figure 7 This is a three-dimensional structural diagram of the adjustment mechanism for the flatness detection mechanism of sheet metal repair provided in a preferred embodiment;

[0028] Figure 8 This is a plan view of the flatness detection mechanism adjustment mechanism for sheet metal repair provided in a preferred embodiment;

[0029] Figure 9 yes Figure 8 A cross-sectional view of BB.

[0030] Explanation of reference numerals in the attached figures

[0031] 100. Base; 101. Support leg; 102. Placement platform; 103. Detection head; 104. Housing; 105. Spring; 200. Moving mechanism; 201. Slide rail; 202. Rack; 203. Servo motor; 204. Gear; 205. Sliding plate; 206. Guide rail; 300. Left and right moving assembly; 301. Mounting base; 302. Mounting groove; 303. Screw; 304. Drive motor; 305. Threaded block; 400. Adjusting mechanism; 401. Hydraulic rod; 402. Fixing plate; 403. Electric telescopic rod; 404. Slider; 405. Slide groove; 406. Mounting plate; 500. Limiting mechanism; 501. Rotary motor; 502. Rotating rod; 503. Connecting rod; 504. Limiting groove; 505. Clamping plate. Detailed Implementation

[0032] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0033] In this utility model, unless otherwise stated, directional words such as "upper," "lower," "inner," and "outer" included in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the terminology.

[0034] Reference Figures 1-9 As shown, a sheet metal repair flatness inspection mechanism includes: a placement platform 102 for placing sheet metal, fixed to a base 100 via support legs 101; a freely movable and height-adjustable inspection component for inspecting the flatness of the sheet metal, mounted on the base 100 via a moving mechanism 200; and an adjustment mechanism 400 for adjusting the angle of the inspection component to meet the inspection requirements of sheet metal with irregular contours.

[0035] The moving mechanism 200 includes a forward and backward moving component that drives the detection component to move forward and backward, and a left and right moving component 300 that drives the detection component to move left and right. The detection component is fixedly mounted on the left and right moving component 300 by an adjusting mechanism 400.

[0036] In use, the sheet metal part to be inspected is placed on the placement platform 102 of the base 100. The moving mechanism 200 drives the inspection part to move freely in the XY plane through its forward and backward moving parts and left and right moving components 300, covering all inspection areas of the sheet metal part. The forward and backward moving parts realize the displacement of the inspection part along the Y-axis, and the left and right moving components 300 drive the inspection part to move along the X-axis. The moving mechanism 200 synchronously controls the lifting and lowering of the inspection part, so that the inspection part approaches or contacts the sheet metal surface. For sheet metal areas with irregular contours, the adjustment mechanism 400 dynamically adjusts the angle of the inspection head 103 to ensure that the inspection head is perpendicular to the sheet metal surface or maintains the optimal inspection posture. The inspection part collects the height data of the sheet metal surface, and the system analyzes the data to evaluate the flatness and generate an inspection report. By using XYZ three-axis movement and angle adjustment, the limitations of traditional fixed inspection heads are overcome, and the head can cover complex curved surfaces, corner areas and irregular contours of sheet metal parts, eliminating blind spots in inspection. The adjustment mechanism 400 ensures that the inspection head 103 is always perpendicular to the surface being measured, improving measurement accuracy, and is especially suitable for special structures such as arcs and inclined surfaces.

[0037] Reference Figures 2-6 As shown, the forward and backward moving component includes: two sets of slide rails 201 fixedly disposed on mutually spaced edges of the base 100, each set of slide rails 201 having a sliding plate 205 slidably sleeved on it, the left and right moving component 300 being fixedly disposed between the two sets of sliding plates 205, and one set of sliding plates 205 having a driving component for driving the sliding plate 205 to slide on the slide rail 201.

[0038] In the above scheme, after the sheet metal part is placed on the placement table 102, the servo motor 203 is started, driving the gear 204 to rotate. Since the gear 204 meshes with the rack 202, a horizontal driving force is generated, which drives the sliding plate 205 to slide back and forth on the slide rail 201. The left and right moving component 300 is fixed between the two sets of sliding plates 205 and moves synchronously with the sliding plates 205, thereby driving the detection component to move along the front and back direction of the sheet metal part, realizing the detection of different areas of the sheet metal.

[0039] Reference Figures 2-4 As shown, the driving component includes: a rack 202 fixedly disposed on the side of the base 100, a servo motor 203 fixedly disposed on the sliding plate 205, and the output shaft of the servo motor 203 being vertically disposed and having a gear 204 fixedly sleeved at its top end to mesh with the rack 202.

[0040] In the above scheme, when it is necessary to drive the sliding plate 205 to slide on the slide rail 201, the control system sends a command to the servo motor 203, and the output shaft of the servo motor 203 drives the gear 204 to rotate; the gear 204 meshes with the rack 202 fixed on the side of the base 100, converting the rotational motion of the motor into the linear motion of the sliding plate 205; by controlling the speed and direction of the servo motor 203, the moving speed and direction of the sliding plate 205 can be precisely controlled, thereby realizing the accurate positioning and movement detection of the detection part in the front and rear directions of the sheet metal part.

[0041] Reference Figure 6 As shown, the bottom surface of each set of sliding plates 205 is provided with a guide rail 206 that rotatably contacts the side of the slide rail 201.

[0042] In the above scheme, during the sliding process of the sliding plate 205 along the slide rail 201, the guide rail 206, which is rotatably set on the bottom surface, contacts and rolls with the side of the slide rail 201; the guide rail 206 can rotate freely on the bottom surface of the sliding plate 205. When the sliding plate 205 moves due to the driving force from the driving member, the guide rail 206 and the side of the slide rail 201 generate rolling friction, which helps the sliding plate 205 slide smoothly and reduces the frictional resistance between the sliding plate 205 and the slide rail 201.

[0043] Reference Figure 6 As shown, the left and right moving component 300 includes: a mounting base 301 fixedly disposed between two sets of sliding plates 205; a horizontally disposed mounting groove 302 on the mounting base 301; a screw 303 rotatably disposed in the mounting groove 302; a threaded block 305 threadedly disposed on the screw 303 and slidingly engaged with the inner wall of the mounting groove 302; a drive motor 304 with a horizontally disposed output shaft and its top end fixedly connected to the screw 303 fixedly disposed on the mounting base 301; and an adjusting mechanism 400 fixedly disposed on the threaded block 305.

[0044] In the above scheme, the drive motor 304 starts, and the output shaft drives the screw 303 to rotate in the mounting groove 302. The rotation of the screw 303 drives the threaded block 305 to slide along the inner wall of the mounting groove 302. Because the threaded block 305 slides with the inner wall of the mounting groove 302, its rotational freedom is restricted. The sliding of the threaded block 305 drives the adjustment mechanism 400 and the detection head 103 fixed thereon to move left and right synchronously, so as to realize the scanning detection of the sheet metal surface in the X-axis direction.

[0045] Reference Figures 4-9 As shown, the adjustment mechanism 400 includes: a hydraulic rod 401, an electric telescopic rod 403, and a mounting plate 406; wherein,

[0046] The hydraulic rod 401 is fixedly mounted on the bottom surface of the threaded block 305, and the output shaft of the hydraulic rod 401 is vertically downward and the top end is fixedly mounted on a fixing plate 402. The sides of the fixing plate 402 that are far apart from each other are hinged with electric telescopic rods 403. One end of each of the two sets of electric telescopic rods 403 is hinged with a slider 404. The mounting plate 406 has grooves 405 for sliding the two sets of sliders 404 respectively.

[0047] In the above scheme, the hydraulic rod 401 extends and retracts, driving the fixed plate 402 and the mounting plate 406 below it to rise and fall, adjusting the vertical position of the detection head 103. When the electric telescopic rods 403 on both sides extend and retract synchronously, the slider 404 slides in the slide groove 405, causing the mounting plate 406 to tilt as a whole, thereby adjusting the pitch angle of the detection head 103. When the electric telescopic rods 403 on both sides extend and retract asynchronously, the mounting plate 406 deflects, thereby adjusting the yaw angle of the detection head 103. The hydraulic rod 401 and the electric telescopic rod 403 work together to enable the detection head 103 to adapt to the detection requirements of complex curved surfaces.

[0048] Reference Figure 5 As shown, the placement platform 102 is provided with a limiting mechanism 500 for clamping and limiting sheet metal of different sizes. The limiting mechanism 500 includes: a rotary motor 501 fixedly mounted on the base 100. The output shaft of the rotary motor 501 is vertically upward and a rotating rod 502 is fixedly mounted on its top end. Connecting rods 503 are respectively hinged to both ends of the rotating rod 502. Clamping plates 505 that contact the side of the sheet metal are hinged to one end of each of the two sets of connecting rods 503. The placement platform 102 is provided with a limiting groove 504 for the clamping plates 505 to slide.

[0049] In the above scheme, after the sheet metal part is placed on the placement table 102, the rotary motor 501 is started, and its output shaft drives the rotating rod 502 to rotate. When the rotating rod 502 rotates, the clamping plate 505 slides in the limiting groove 504 through the hinged connecting rod 503. As the rotation angle of the rotating rod 502 changes, the two sets of clamping plates 505 gradually move closer to the side of the sheet metal until the sheet metal part is clamped, thus completing the limiting and fixing of the sheet metal. During the inspection process, the rotary motor 501 remains stationary to ensure that the clamping plate 505 firmly clamps the sheet metal and prevents it from shifting during the inspection.

[0050] Reference Figure 9 As shown, the testing component includes: a housing 104 with a mounting plate 406 fixedly mounted on the bottom surface, a spring 105 fixedly mounted inside the housing 104, and a testing head 103 for testing the flatness of sheet metal that slides and engages with the inner wall of the housing 104 at the lower end of the spring 105.

[0051] In the above scheme, when the detection head 103 contacts the sheet metal surface, if there are protrusions or depressions on the sheet metal surface, the detection head 103 will slide along the inner wall of the housing 104 under the force of the sheet metal surface; the detection head 103 slides to compress or stretch the spring 105, and the elastic force generated by the spring 105 keeps the detection head 103 in contact with the sheet metal surface; the detection head 103 transmits the collected sheet metal surface height data to the control system, and calculates the flatness of the sheet metal surface by analyzing the degree of deformation of the spring 105 and the displacement of the detection head 103.

[0052] In summary, the sheet metal repair flatness detection mechanism provided by this utility model allows the sheet metal part to be inspected to be placed on the placement table 102 during use. The rotary motor 501 in the limiting mechanism 500 is activated, and its output shaft drives the rotating rod 502 to rotate. Through the hinged connecting rod 503, the clamping plate 505 slides within the limiting groove 504 until the sheet metal part is clamped, thus achieving stable positioning of the sheet metal. Based on the approximate size of the sheet metal part and the inspection requirements, the moving mechanism 200 performs initial position adjustment of the inspection piece. The servo motor 203 in the front-to-back moving component drives the gear 204 to mesh with the rack 202, causing the sliding plate 205 to slide back and forth on the slide rail 201. The drive motor 304 in the left-to-right moving component 300 drives the screw 303 to rotate, causing the threaded block 305 to slide within the mounting groove 302, thereby realizing the left-to-right movement of the inspection piece and moving it to a suitable initial inspection position. Simultaneously, the hydraulic rod 401 in the adjusting mechanism 400 extends and retracts, adjusting the vertical height of the inspection piece so that the inspection head 103 approaches the sheet metal surface. The moving mechanism 200 is activated, and the forward and backward moving parts and the left and right moving components 300 work together to drive the inspection piece to perform horizontal and vertical scanning on the sheet metal surface. The servo motor 203 and the drive motor 304 precisely control the moving speed and path of the inspection piece according to a preset program or control system instructions, so that the inspection head 103 can cover the entire area to be inspected on the sheet metal. When the inspection head 103 encounters an irregularly shaped sheet metal area, the adjusting mechanism 400 comes into play. Two sets of electric telescopic rods 403 extend and retract according to the posture requirements of the detection head 103, driving the slider 404 to slide within the slide groove 405, thereby adjusting the angle of the mounting plate 406. This ensures that the detection head 103 remains vertical or maintains an optimal posture against the sheet metal surface, guaranteeing the accuracy of the detection data. During movement, the detection head 103 contacts the sheet metal surface. If there are protrusions or depressions on the sheet metal surface, the detection head 103 will slide along the inner wall of the housing 104 under the force of the sheet metal surface, compressing or stretching the spring 105. The elastic force of the spring 105 keeps the detection head 103 in close contact with the sheet metal surface. The detection head 103 transmits the collected sheet metal surface height data to the control system.

[0053] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0054] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0055] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A sheet metal repair flatness detection mechanism, characterized in that, The testing mechanism includes: a placement platform (102) for placing sheet metal, fixed to a base (100) by a support leg (101); a freely movable and height-adjustable testing component for testing the flatness of sheet metal, provided on the base (100) via a moving mechanism (200); and an adjustment mechanism (400) for adjusting the angle of the testing component to meet the testing requirements of sheet metal with irregular contours. The moving mechanism (200) includes: a forward and backward moving component that drives the detection component to move forward and backward, and a left and right moving component (300) that drives the detection component to move left and right. The detection component is fixed on the left and right moving component (300) by an adjusting mechanism (400).

2. The sheet metal repair flatness detection mechanism according to claim 1, characterized in that, The forward and backward moving component includes: two sets of slide rails (201) fixedly disposed on the mutually distant edges of the base (100), each set of slide rails (201) having a sliding plate (205) slidably sleeved on it; the left and right moving component (300) is fixedly disposed between the two sets of sliding plates (205), and one set of sliding plates (205) is provided with a driving component for driving the sliding plate (205) to slide on the slide rail (201).

3. The sheet metal repair flatness detection mechanism according to claim 2, characterized in that, The driving component includes: a rack (202) fixedly disposed on the side of the base (100), a servo motor (203) fixedly disposed on the sliding plate (205), and the output shaft of the servo motor (203) is vertically disposed and a gear (204) that meshes with the rack (202) is fixedly sleeved at the top end.

4. The sheet metal repair flatness detection mechanism according to claim 2, characterized in that, Each set of sliding plates (205) has a guide rail (206) on its bottom surface that rotatably contacts the side of the slide rail (201).

5. The sheet metal repair flatness detection mechanism according to claim 2, characterized in that, The left and right moving component (300) includes: a mounting base (301) fixedly disposed between two sets of sliding plates (205), a horizontally disposed mounting groove (302) on the mounting base (301), a screw (303) rotatably disposed in the mounting groove (302), a threaded block (305) threadedly disposed on the screw (303) and slidingly engaged with the inner wall of the mounting groove (302), a drive motor (304) with a horizontally disposed output shaft and a fixedly connected top end to the screw (303) fixedly disposed on the mounting base (301), and an adjustment mechanism (400) fixedly disposed on the threaded block (305).

6. The sheet metal repair flatness detection mechanism according to claim 5, characterized in that, The adjusting mechanism (400) includes: a hydraulic rod (401), an electric telescopic rod (403), and a mounting plate (406); wherein, The hydraulic rod (401) is fixed on the bottom surface of the threaded block (305), and the output shaft of the hydraulic rod (401) is vertically downward and the top end is fixedly provided with a fixing plate (402). The sides of the fixing plate (402) that are far apart from each other are hinged with electric telescopic rods (403). One end of each of the two sets of electric telescopic rods (403) is respectively hinged with a slider (404). The mounting plate (406) is provided with a sliding groove (405) for the two sets of sliders (404) to slide.

7. The sheet metal repair flatness detection mechanism according to claim 1, characterized in that, The placement platform (102) is provided with a limiting mechanism (500) for clamping and limiting sheet metal of different sizes.

8. The sheet metal repair flatness detection mechanism according to claim 7, characterized in that, The limiting mechanism (500) includes: a rotary motor (501) fixedly mounted on the base (100), the output shaft of the rotary motor (501) is vertically upward and a rotating rod (502) is fixedly mounted at its top end, the two ends of the rotating rod (502) are respectively hinged to connecting rods (503), and a clamping plate (505) that contacts the side of the sheet metal is hinged to one end of each of the two sets of connecting rods (503), and a limiting groove (504) for sliding of the clamping plate (505) is provided on the placement platform (102).

9. The sheet metal repair flatness detection mechanism according to claim 6, characterized in that, The testing component includes: a housing (104) with a fixed mounting plate (406) on the bottom surface, a spring (105) fixedly installed inside the housing (104), and a testing head (103) for testing sheet metal flatness that slides and cooperates with the inner wall of the housing (104) at the lower end of the spring (105).

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