A device for quickly measuring the length of filiform corrosion filaments

Abstract

This invention provides a device for rapidly measuring the length of filamentous corrosion filaments, relating to the field of paint film corrosion detection technology. It includes a base, a measuring frame, a first moving mechanism, a second moving mechanism, a third moving mechanism, an auxiliary observation mirror, measuring claws, a scale, and a positioning groove. The scale includes a baseline with symmetrical graduations centered at 0. The positioning groove is mounted on the base, and a test piece is placed in it. A positioning adjustment structure is connected to the positioning groove to align the graduations on the test piece with the 0 mark. The measuring claws and the auxiliary observation mirror are both mounted on the third moving mechanism. The measuring claws have claw tips at their lower end, and the auxiliary observation mirror is located directly above the measuring claws, has a 360° rotation function, and includes a built-in magnifying glass. The third moving mechanism is connected to the measuring frame, which has a second moving mechanism. The measuring frame is slidably connected to the base via the first moving mechanism. This invention is suitable for rapid on-site measurement, improves measurement accuracy, and is easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of paint film corrosion detection technology, and more specifically, to a device for rapidly measuring the length of filamentous corrosion filaments. Background Technology

[0002] In existing tests for filamentous corrosion of paint films, the measurement of filament length relies on post-photograph analysis using software (e.g., Chinese patent document CN119618977A), which is cumbersome, dependent on electronic equipment, and unable to provide rapid on-site readings. Manual measurement using a standard ruler is prone to alignment errors due to the lack of specimen positioning and the irregular shape of the filaments, resulting in low data accuracy. Therefore, this paper proposes a dedicated mechanical measuring device that eliminates the need for computer software, enabling rapid and accurate on-site measurement. Utility Model Content

[0003] To address the aforementioned technical problem, this invention provides a device for rapidly measuring the length of filamentous corrosion filaments. This invention primarily uses a positioning groove and a positioning adjustment structure to position and adjust the test piece, aligning the scribe line on the test piece with the 0 mark on the scale. A measuring frame and three moving mechanisms enable the measuring claw to move laterally, longitudinally, and vertically, aligning the claw tip with the end of the filament on the test piece. A magnifying glass is then used to read the scale reading, thereby measuring the length of the longest filament on the test piece.

[0004] The technical means adopted in this utility model are as follows: A device for rapidly measuring the length of filamentous corrosion filaments includes: a base, a measuring frame, a first moving mechanism, a second moving mechanism, a third moving mechanism, an auxiliary observation mirror, a measuring claw, a scale, and a positioning groove. The scale includes a baseline symmetrically arranged on the left and right edges of the positioning groove. The baseline is a scale line with the 0 mark located in the middle, and the scale line is symmetrically scaled outwards from the 0 mark as the center. The positioning groove is a plate-shaped structure with a through groove in the middle, and is installed on the base; the test piece is placed in the through groove of the positioning groove, and a positioning adjustment structure is connected to the positioning groove. The positioning adjustment structure is used to adjust the position of the test piece so that the scribing line on the test piece is aligned with the 0 mark on the scale line. Both the auxiliary observation mirror and the measuring claw are mounted on the third moving mechanism. The lower end of the measuring claw has a claw tip, which is used to align with the end of the filament on the test piece. The auxiliary observation mirror is located directly above the measuring claw, has a 360° rotation function, and has a built-in magnifying glass to be aligned with the claw tip area of ​​the measuring claw. The third moving mechanism is connected to the measuring frame and is used to realize the vertical movement of the measuring claw; the measuring frame is provided with a second moving mechanism and is used to realize the longitudinal movement of the measuring claw; the measuring frame is slidably connected to the base through a first moving mechanism, and the first moving mechanism is used to realize the lateral movement of the measuring frame with the measuring claw.

[0005] Furthermore, the first moving mechanism includes a transverse guide rail, the scale is perpendicular to the transverse guide rail, the transverse guide rail is mounted on the base, the bottom of the measuring frame is provided with a transverse slider, the transverse slider is slidably connected to the transverse guide rail, and a first knob is connected to the transverse slider. When the measuring frame moves into position, the measuring frame is locked and fixed to the base by the first knob.

[0006] Furthermore, the second moving mechanism includes a longitudinal guide rail, which is mounted on the bottom slider of the measuring frame. The measuring frame is provided with a longitudinal slider, the bottom of which is slidably connected to the longitudinal guide rail. The third moving mechanism is connected to the longitudinal slider. A second knob is connected to the bottom of the longitudinal slider. When the longitudinal slider moves into position, the second knob locks and fixes the longitudinal slider to the transverse slider of the bottom measuring frame.

[0007] Furthermore, the third moving mechanism includes a vertical guide rail and a vertical slider. The vertical guide rail is mounted on the longitudinal slider of the measuring frame. The measuring claw and the auxiliary observation mirror are both mounted on the vertical slider. The vertical slider is slidably connected to the vertical guide rail. A third knob is connected to the vertical slider. When the vertical slider moves into position, the third knob locks and fixes the vertical slider to the longitudinal slider.

[0008] Furthermore, the positioning adjustment structure includes locking bolts connected to the front and rear side walls of the positioning groove. The locking bolts on both sides penetrate the side walls and are inserted into the through groove to contact and tighten with the front and rear sides of the test piece.

[0009] Furthermore, the scale lines are made by micro-engraving with an accuracy of 0.1mm.

[0010] Furthermore, the magnifying glass is a 10x magnifying glass.

[0011] This invention also provides a method for rapidly measuring the length of filamentous corrosion filaments, using the aforementioned device for rapidly measuring the length of filamentous corrosion filaments, comprising the following steps: S1. Clean and dry the test pieces that have undergone the filamentous corrosion test; S2. Place the cleaned and dried test piece into the positioning groove, move the test piece so that the scribing line where the starting point of the corroded filaments is located is aligned with the 0 mark of the baseline on both sides, and then fix the test piece with the locking bolts on both sides. S3. Move the measuring frame along the horizontal guide rail, and move the measuring claw and magnifying glass along the vertical guide rail. Control the up and down position of the measuring claw and magnifying glass through the vertical guide rail. Observe through the 10x magnifying glass until the claw tip of the measuring claw is precisely aligned with the end of the largest filament. Lock the second and third knobs. S4. Move the measuring frame along the transverse guide rail so that the tip of the measuring claw is close to the nearest scale line. Rotate the first knob to fix the measuring frame to the base, read the scale value, and obtain the length of the filament. S5. Repeat the measurement multiple times and take the average value to obtain the length of the largest filament on the test piece.

[0012] Compared with the prior art, the present invention has the following advantages: 1. The device for rapidly measuring the length of filamentous corrosion filaments provided by this utility model uses a positioning groove and a positioning adjustment structure to position and adjust the test piece so that the scribing line on the test piece is aligned with the 0 mark on the scale line. The measuring claw is moved laterally, longitudinally, and vertically through a measuring frame and three moving mechanisms so that the claw tip is aligned with the end of the filament on the test piece. The scale line reading is taken using a magnifying glass, thereby measuring the length of the longest filament on the test piece.

[0013] 2. The device for rapidly measuring the length of filamentous corrosion filaments provided by this utility model requires no electronic equipment: it is a purely mechanical structure, not limited by power supply and software, and is suitable for rapid on-site measurement.

[0014] 3. The device for rapidly measuring the length of filamentous corrosion filaments provided by this utility model has improved measurement accuracy: the accuracy is 0.1mm scale + magnifying glass assistance, which is superior to traditional ruler measurement.

[0015] 4. The device for rapidly measuring the length of filamentous corrosion filaments provided by this utility model is easy to operate: through the positioning groove and measuring frame, a single measurement can be completed within 1 minute, improving efficiency by 60%.

[0016] Based on the above reasons, this utility model can be widely applied in fields such as the measurement of filament length in paint film filament corrosion testing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model.

[0019] In the diagram: 1. Base; 2. Horizontal guide rail; 3. Vertical guide rail; 4. First knob; 5. Second knob; 6. Vertical guide rail; 7. Measuring frame; 8. Third knob; 9. Auxiliary observation mirror; 10. Magnifying glass; 11. Measuring jaw; 12. Scale; 13. Positioning groove; 14. Locking bolt. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Example 1 This invention provides a device for rapidly measuring the length of filamentous corrosion filaments. It is a mechanical device that can quickly and accurately measure the length of filaments on-site without the need for electronic equipment, thereby solving the problems of existing measurement methods that rely on software, are cumbersome to operate, and have low accuracy.

[0022] like Figure 1As shown, the device for rapidly measuring the length of filamentous corrosion filaments of this utility model includes a base 1, a measuring frame 7, a first moving mechanism, a second moving mechanism, a third moving mechanism, an auxiliary observation mirror 9, a measuring claw 11, a scale 12, and a positioning groove 13. The scale 12 includes symmetrically arranged scale reference lines on the left and right edges of the positioning groove 13. The scale reference line is the 0 mark located in the middle of the scale line, and the scale line is symmetrically scaled outwards from the 0 mark. The line connecting the 0 marks on both sides of the positioning groove 13 is taken as the first straight line. The positioning groove 13 is a plate-shaped structure with a through groove in the middle, and is installed on the base 1. The base 1 is a rectangular platform. The test piece is placed in the through groove of the positioning groove 13. The positioning groove 13 is adapted to a 75mm×150mm test piece. A positioning adjustment structure is connected to the positioning groove 13. The positioning adjustment structure is used for... The position of the test piece is adjusted so that the scribing line on the test piece is aligned with the 0 mark on the scale line. Ideally, the scribing line on the test piece is coaxial with the first straight line. The measuring claw 11 and the auxiliary observation mirror 9 are both mounted on the third moving mechanism. The lower end of the measuring claw 11 has a claw tip, which is used to align with the end of the filament on the test piece. The auxiliary observation mirror 9 is located directly above the measuring claw 11 and has a 360° rotation function. It has a built-in magnifying glass 10 and is aligned with the claw tip area of ​​the measuring claw 11. The third moving mechanism is connected to the measuring frame 7 to realize the vertical movement of the measuring claw 11. The measuring frame 7 is provided with a second moving mechanism to realize the longitudinal movement of the measuring claw 11. The measuring frame 7 is slidably connected to the base 1 through the first moving mechanism, which is used to realize the lateral movement of the measuring frame 7 with the measuring claw 11.

[0023] Preferably, the first moving mechanism includes a transverse guide rail 2, a scale 12 is set perpendicular to the transverse guide rail 2, the transverse guide rail 2 is mounted on the base 1, and a transverse slider is provided at the bottom of the measuring frame 7. The transverse slider is slidably connected to the transverse guide rail 2. The transverse slider slides laterally on the transverse guide rail 2, thereby realizing the transverse movement of the entire measuring frame 7 along the transverse guide rail 2. In turn, the measuring frame 7 drives the third moving mechanism, the measuring claw 11 and the auxiliary observation mirror 9 to move laterally together. A first knob 4 (the first knob 4 is set in the vertical direction) is connected to the transverse slider. When the measuring frame 7 moves into place, the first knob 4 locks the transverse slider of the measuring frame 7 to the base 1 for a fixed connection.

[0024] Preferably, the second moving mechanism includes a longitudinal guide rail 3, which is mounted on the bottom slider of the measuring frame 7. The measuring frame 7 is provided with a longitudinal slider, the bottom of which is slidably connected to the longitudinal guide rail 3. The third moving mechanism is connected to the longitudinal slider. The longitudinal slider slides longitudinally on the longitudinal guide rail 3, thereby driving the third moving mechanism, the measuring claw 11, and the auxiliary observation mirror 9 to move longitudinally together. The bottom of the longitudinal slider is connected to a second knob 5. When the longitudinal slider moves into place, the second knob 5 locks and fixes the longitudinal slider to the transverse slider of the bottom measuring frame 7.

[0025] Preferably, the third moving mechanism includes a vertical guide rail 6 and a vertical slider. The vertical guide rail 6 is mounted on the longitudinal slider of the measuring frame 7. The measuring claw 11 and the auxiliary observation mirror 9 are both mounted on the vertical slider. The vertical slider is slidably connected to the vertical guide rail 6. The vertical slider slides vertically on the vertical guide rail 6, thereby driving the measuring claw 11 and the auxiliary observation mirror 9 to move vertically together. A third knob 8 is connected to the vertical slider. When the vertical slider moves into place, the third knob 8 locks the vertical slider and the longitudinal slider in a fixed connection.

[0026] Preferably, the positioning adjustment structure includes locking bolts 14 connected to the front and rear side walls of the positioning groove 13. The locking bolts 14 on both sides penetrate the side walls and are inserted into the through grooves to contact and tighten with the front and rear sides of the specimen, thereby clamping the specimen and fixing it.

[0027] Preferably, the scale lines are made by micro-engraving with an accuracy of 0.1mm.

[0028] Preferably, the magnifying glass 10 is a 10x magnifying glass.

[0029] Preferably, the measuring claw 11 is an L-shaped measuring claw (the claw tip is a 0.1mm sharp probe).

[0030] Example 2 This invention also provides a method for rapidly measuring the length of filamentous corrosion filaments, using the aforementioned device for rapidly measuring the length of filamentous corrosion filaments, comprising the following steps: S1. Clean and dry the test pieces that have undergone the filamentous corrosion test; S2. Place the cleaned and dried test piece into the positioning groove 13, move the test piece so that the scribing line where the starting point of the corroded filaments is located is aligned with the baseline 0 mark, and then fix the test piece with the locking bolts 14 on both sides. S3. Move the measuring frame 7 along the transverse guide rail 2, and move the measuring claw 11 and magnifying glass 10 along the longitudinal guide rail 3. Control the up and down positions of the measuring claw 11 and magnifying glass 10 through the vertical guide rail 6. Observe through the 10x magnifying glass 10 until the claw tip of the measuring claw 11 is precisely aligned with the end of the largest filament. Lock the second knob 5 and the third knob 8. S4. Move the measuring frame 7 along the transverse guide rail 2 so that the claw tip of the measuring claw 11 is close to the nearest scale line. Rotate the first knob 4 to fix the measuring frame 7 to the base 1. Read the scale value of the scale 12 to obtain the length of the filament. S5. Repeat the measurement multiple times and take the average value to obtain the length of the largest filament on the test piece.

[0031] Example 3 Measurement method: S1. Rinse and dry the test piece (75mm×150mm) after the filamentous corrosion test; S2. Place the test piece into the positioning groove 13, align the starting point of the filament with the baseline, and fix the test piece with the locking bolts 14 on both sides. S3. Move the measuring frame 7 and measuring claw 11 through the three moving mechanisms, observe through the 10x magnifying glass 10 until the claw tip of the measuring claw 11 is precisely aligned with the end of the largest filament, and lock the second knob 5 and the third knob 8. S4. Move the measuring frame 7 laterally so that the tip of the measuring claw 11 is close to the nearest scale line. Rotate the first knob 4 to fix the measuring frame 7 to the base 1. Read the scale value of the scale 12 to obtain the length of the filament. S5. Repeat the measurement 3 times. The results are 0.8mm, 0.9mm and 0.8mm respectively. The average value is 0.83mm. Record this as the length of the largest filament on the test piece.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for rapidly measuring the length of filamentous corrosion filaments, characterized in that, include: The base (1), measuring frame (7), first moving mechanism, second moving mechanism, third moving mechanism, auxiliary observation mirror (9), measuring claw (11), scale (12) and positioning groove (13) are provided. The scale (12) includes a reference line symmetrically arranged on the left and right edges of the positioning groove (13). The reference line is a scale line with the 0 mark in the middle. The scale line is symmetrically scaled to both sides with the 0 mark as the center. The positioning groove (13) is a plate-shaped structure with a through groove in the middle, and is installed on the base (1); the test piece is placed in the through groove of the positioning groove (13), and a positioning adjustment structure is connected to the positioning groove (13). The positioning adjustment structure is used to adjust the position of the test piece so that the scribing line on the test piece is aligned with the 0 mark on the scale line. The auxiliary observation mirror (9) and the measuring claw (11) are both mounted on the third moving mechanism. The lower end of the measuring claw (11) has a claw tip, which is used to align with the end of the filament on the test piece. The auxiliary observation mirror (9) is located directly above the measuring claw (11), has a 360° rotation function, and has a built-in magnifying glass (10) to align with the claw tip area of ​​the measuring claw (11). The third moving mechanism is connected to the measuring frame (7) and is used to realize the vertical movement of the measuring claw (11); the measuring frame (7) is provided with a second moving mechanism, which is used to realize the longitudinal movement of the measuring claw (11); the measuring frame (7) is slidably connected to the base (1) through the first moving mechanism, which is used to realize the measuring frame (7) moving laterally with the measuring claw (11).

2. The device for rapidly measuring the length of filamentous corrosion filaments according to claim 1, characterized in that, The first moving mechanism includes a horizontal guide rail (2), the scale (12) is set perpendicular to the horizontal guide rail (2), the horizontal guide rail (2) is mounted on the base (1), the bottom of the measuring frame (7) is provided with a horizontal slider, the horizontal slider is slidably connected to the horizontal guide rail (2), and a first knob (4) is connected to the horizontal slider. When the measuring frame (7) moves into place, the measuring frame (7) is locked and fixedly connected to the base (1) by the first knob (4).

3. The device for rapidly measuring the length of filamentous corrosion filaments according to claim 1, characterized in that, The second moving mechanism includes a longitudinal guide rail (3), which is mounted on the bottom slider of the measuring frame (7). The measuring frame (7) is provided with a longitudinal slider, the bottom of which is slidably connected to the longitudinal guide rail (3). The third moving mechanism is connected to the longitudinal slider. The bottom of the longitudinal slider is connected to a second knob (5). When the longitudinal slider moves into place, the second knob (5) locks and fixes the longitudinal slider to the transverse slider of the bottom measuring frame (7).

4. The device for rapidly measuring the length of filamentous corrosion filaments according to claim 1, characterized in that, The third moving mechanism includes a vertical guide rail (6) and a vertical slider. The vertical guide rail (6) is mounted on the longitudinal slider of the measuring frame (7). The measuring claw (11) and the auxiliary observation mirror (9) are both mounted on the vertical slider. The vertical slider is slidably connected to the vertical guide rail (6). A third knob (8) is connected to the vertical slider. When the vertical slider moves into place, the third knob (8) locks and fixes the vertical slider to the longitudinal slider.

5. The device for rapidly measuring the length of filamentous corrosion filaments according to claim 1, characterized in that, The positioning adjustment structure includes locking bolts (14) connected to the front and rear side walls of the positioning groove (13). The locking bolts (14) on both sides penetrate the side walls and are inserted into the through groove to contact and tighten with the front and rear sides of the test piece.

6. The device for rapidly measuring the length of filamentous corrosion filaments according to claim 1, characterized in that, The scale lines are made by micro-engraving with a precision of 0.1mm.

7. The device for rapidly measuring the length of filamentous corrosion filaments according to claim 1, characterized in that, The magnifying glass (10) is a 10x magnifying glass.

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