Aluminum profile film thickness detection device and method

Abstract

The present application relates to the technical field of aluminum profile film thickness detection equipment, and in particular to an aluminum profile film thickness detection device and method. The aluminum profile film thickness detection device includes an eddy current thickness gauge, and also includes a connecting rod, a lateral adjustment device, a vertical adjustment device, a detection device and a thickness probe. Vertical rods are provided below the two ends of the connecting rod; the lateral adjustment device is provided on the connecting rod, and is used to adjust the lateral position of the thickness probe; the vertical adjustment device is provided below the lateral adjustment device, and is used to adjust the vertical position of the thickness probe; the detection device is used to fix the thickness probe; through the lateral adjustment device and the vertical adjustment device, the eddy current thickness gauge can maintain vertical measurement with the aluminum profile film every time. By arranging a suction cup in the base, it is more stable when using the eddy current thickness gauge for measurement. By using a buffer device, the pressure sensor is used to measure the pressure before the thickness probe of the eddy current thickness gauge contacts the aluminum profile film, ensuring that the thickness probe will not be compressed.

Description

Technical Field

[0001] The present application relates to the technical field of aluminum profile film thickness detection equipment, and in particular to an aluminum profile film thickness detection device and method. Background Art

[0002] The statements in this section merely provide background technical information related to the present application and do not necessarily constitute prior art.

[0003] Aluminum profiles are a common metal material and are widely used in various fields. However, the surface of aluminum profiles is easily affected by oxidation and corrosion. In order to improve the corrosion resistance and service life of aluminum profiles, aluminum profile surfaces are currently coated. However, due to different surface treatments and different use environments, aluminum profiles have certain requirements for the thickness of the aluminum profile film. For example, the thickness of the anodized film is between 10μm-20μm indoors and 40μm-120μm outdoors; the electrophoretic surface film thickness is divided into three levels: A, B, and S.

[0004] At present, the most commonly used method for detecting film thickness is to measure it manually with an eddy current thickness gauge. However, when using an eddy current thickness gauge to measure aluminum profile films, it is necessary to place the thickness gauge probe of the eddy current thickness gauge against the film outside the aluminum profile, which has the following shortcomings: First, manual operation causes errors in the angles between the eddy current thickness gauge and the aluminum profile each time; second, when multiple measurements are required, it is inevitable that the contact force between the thickness gauge probe and the aluminum profile film is different, which not only affects the measurement results, but also easily damages the thickness gauge probe; for some aluminum profile films that are easily deformed, the thickness of the aluminum profile film will also change, affecting its use.

[0005] In view of this, it is necessary to provide an aluminum profile film thickness detection device and method to solve the above technical problems. Summary of the invention

[0006] Based on this, in order to solve the above technical problems, the present application provides an aluminum profile film thickness detection device and method.

[0007] The technical solution adopted by this application to solve the problems existing in the prior art is:

[0008] The present application proposes an aluminum profile film thickness detection device, including an eddy current thickness gauge, wherein the eddy current thickness gauge includes a host and a thickness measuring probe;

[0009] Also includes:

[0010] Connecting rod, vertical rods are fixedly provided below both ends of the connecting rod;

[0011] A lateral adjustment device, provided on the connecting rod, for adjusting the lateral position of the thickness measuring probe;

[0012] A vertical adjustment device, fixedly arranged below the horizontal adjustment device, is used to adjust the vertical position of the thickness measuring probe;

[0013] The detection device is arranged below the vertical adjustment device and is used to fix the thickness measuring probe;

[0014] The thickness measuring probe is detachably connected to the detection device.

[0015] Preferably, the transverse adjustment device comprises a transverse screw, which is threadedly connected to a transverse slider, and the transverse slider is slidably arranged in a transverse slide groove on the connecting rod; a through groove is provided at the bottom of the transverse slide groove, and the bottom of the transverse slider is connected to the vertical adjustment device through the through groove;

[0016] One end of the transverse screw is fixedly connected to the motor shaft of the transverse motor in the axial direction, and the other end is rotatably connected to the connecting rod;

[0017] The transverse motor is fixed on the connecting rod and is electrically connected to the control device.

[0018] Preferably, the vertical adjustment device comprises a connecting slide column fixedly arranged below the horizontal slider, angle steels are fixedly arranged around the connecting slide column, a vertical slideway for sliding the vertical slider is formed inside the angle steels; a bottom plate fixedly connected to the angle steels is arranged below the vertical slideway;

[0019] An internal threaded opening is provided on one side of the vertical sliding block close to the connecting sliding column, the internal threaded opening is threadedly connected to one end of the vertical screw rod, and the other end of the vertical screw rod is fixedly connected to the motor shaft of the vertical motor in the axial direction;

[0020] The vertical motor is fixed on the connecting slide column and is electrically connected to the control device;

[0021] A pressure column is fixedly provided at one end of the vertical sliding block close to the bottom plate, and the pressure column is fixedly connected to the detection device after sliding through the sliding hole on the bottom plate.

[0022] Preferably, the detection device includes a fixed sleeve fixed under the pressure column, and a first pressure plate and a second pressure plate are arranged in the fixed sleeve. The first pressure plate is fixed inside the fixed sleeve, and a clamping screw is provided on the second pressure plate, which is threadedly connected to the fixed sleeve; the bottom of the clamping screw is located in the second pressure plate and is rotatably connected to the second pressure plate.

[0023] Preferably, the second pressing plate is fixed with sliding rods at the upper and lower sides of the clamping screw, the fixed sleeve is provided with a sliding opening matched with the sliding rod, and the sliding rod is slidably inserted into the sliding opening;

[0024] The fixed sleeve is provided with a wire passing opening.

[0025] Preferably, a buffer mechanism is detachably connected to the bottom of the fixed sleeve, and the buffer mechanism comprises a mounting ring detachably connected to the fixed sleeve, a pressure ring is provided below the mounting ring, and a buffer spring is fixedly provided between the mounting ring and the pressure ring;

[0026] A plurality of guide cylinders are fixedly arranged on the outer side of the mounting ring, and vertical sliding rods are slidably penetrated in the guide cylinders; and the bottoms of the vertical sliding rods are fixedly arranged on the pressure ring.

[0027] Preferably, a pressure sensor is fixedly provided between the buffer spring and the mounting ring, and the pressure sensor is electrically connected to the control device;

[0028] A limit block is fixedly mounted on the vertical sliding rod. When the limit block abuts against the guide cylinder, the plane where the bottom of the pressure ring is located is the same as the plane where the bottom of the thickness measuring probe is located.

[0029] Preferably, a base is fixedly provided below the upright pole;

[0030] The base comprises a fixed block, and a suction cup action space is provided inside the fixed block;

[0031] The vertical rod is fixedly arranged on a column above the fixed block, a vertical cylinder is fixedly arranged above the column, and a compression space is formed in the vertical cylinder;

[0032] A suction cup is arranged in the suction cup action space, the top of the suction cup is fixedly connected to the bottom of the pressure rod, the pressure rod is slidably arranged in the column and extends to the top of the connecting rod and is slidably connected to the connecting rod; a compression spring is arranged in the compression space outside the pressure rod in the vertical cylinder, the top of the compression spring is against the bottom of the pressure head, the inner side of the pressure head is fixedly connected to the pressure rod, and the outer side of the pressure head protrudes out of the vertical cylinder through a compression seam arranged on the vertical cylinder;

[0033] The pressure head can move up and down in the pressure gap.

[0034] Preferably, the fixing block is provided with an air hole for connecting the suction cup action space with the outside.

[0035] The aluminum profile film thickness detection method comprises the following steps:

[0036] Step 1: Obtain the pressure value of the pressure sensor when the limit block is against the guide cylinder , calculate the deformation of the buffer spring:

[0037]

[0038] in: is the elastic coefficient of the buffer spring;

[0039] Get the maximum pressure of aluminum profile membrane ;

[0040] Step 2: Place the aluminum profile film thickness detection device on the aluminum profile whose film thickness needs to be detected. After the base is close to the aluminum profile, manually press the pressure head to make the suction cups in the two bases adsorb on the aluminum profile;

[0041] Step 3: The control device controls the lateral motor to rotate, so that the thickness measuring probe moves horizontally and stops above the position where the film thickness needs to be tested;

[0042] Step 4: The control device controls the vertical motor to rotate, so that the thickness measuring probe moves downward;

[0043] In this process, the control device obtains the pressure value of the pressure sensor in real time. :

[0044] when ≥ When the control device controls the vertical motor to rotate in the opposite direction, the thickness measuring probe moves upward for a certain distance until until;

[0045] At this time, the aluminum profile film thickness T is:

[0046]

[0047] Where: t is the film thickness value measured by the eddy current thickness gauge.

[0048] Compared with the prior art, the beneficial effects of this application are:

[0049] 1. By setting up the lateral adjustment device and the vertical adjustment device, the eddy current thickness gauge can maintain a vertical measurement with the aluminum profile film every time.

[0050] 2. By setting a suction cup in the base, the device and the aluminum profile can ensure a certain suction force, which is more stable when using the eddy current thickness gauge for measurement.

[0051] 3. Using the buffer device, the pressure sensor is used to measure the pressure before the thickness probe of the eddy current thickness gauge contacts the aluminum profile film, ensuring that the thickness probe will not be pressurized.

[0052] 4. Realize the contactless measurement of aluminum profile film thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0054] Figure 1 This is a schematic diagram of the overall structure of an aluminum profile film thickness detection device of the present application.

[0055] Figure 2 for Figure 1The overall structural diagram of an aluminum profile film thickness detection device of the present application after removing the cover plate is shown in FIG.

[0056] Figure 3 for Figure 1 A schematic diagram of the overall structure of an aluminum profile film thickness detection device of the present application from another angle,

[0057] Figure 4 for Figure 3 A partial enlarged view of area A in the middle.

[0058] Figure 5 for Figure 4 Schematic diagram of the internal structure of the vertical slider.

[0059] Figure 6 This is a schematic diagram of an explosion of a detection device in one embodiment of an aluminum profile film thickness detection device of the present application.

[0060] Figure 7 for Figure 6 Schematic diagram of the internal structure of the fixed sleeve of the detection device.

[0061] Figure 8 for Figure 6 Schematic diagram of the overall structure of the buffer mechanism of the detection device.

[0062] Fig. 9 for Figure 1 A schematic cross-sectional diagram of the internal structure of a vertical pole and a base of an aluminum profile film thickness detection device in the present application.

[0063] In the figure:

[0064] 1. Pole, 10. Column, 11. Vertical tube, 12. Compression space, 13. Compression spring, 14. Compression rod, 15. Suction cup, 16. Compression seam, 17. Pressure head,

[0065] 2. Base, 20. Fixing block, 21. Suction cup action space,

[0066] 3. Connecting rod, 30. Transverse motor, 31. Transverse support plate, 32. Transverse screw, 33. Transverse slider, 34. Transverse slide, 35. Through slot,

[0067] 4. Vertical adjustment device, 40. Connecting slide column, 41. Angle steel, 42. Vertical motor, 43. Vertical support plate, 44. Vertical screw rod, 45. Vertical slider, 450. Sliding body, 451. Sliding bottom, 452. Internal threaded opening,

[0068] 46, pressure column, 47, bottom plate, 48, sliding hole,

[0069] 5. Detection device, 50. Fixed sleeve, 51. External mounting port, 52. Mounting ring, 53. Buffer spring, 54. Pressing ring, 55. Vertical slide bar, 56. Limit block, 57. Guide cylinder, 58. Passing port, 590. First pressing plate, 591. Second pressing plate, 592. Pressing screw, 593. Slide bar,

[0070] 6. Cover plate, 7. Thickness measuring probe. DETAILED DESCRIPTION

[0071] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0072] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0073] In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present disclosure, and do not specifically refer to any part or element in the present disclosure and should not be understood as limitations on the present disclosure.

[0074] The present application provides an aluminum profile film thickness detection device, referring to Figures 1 to 3 and Figure 6 , the aluminum profile film thickness detection device of the present application includes an eddy current thickness gauge, and the eddy current thickness gauge includes a host and a thickness measuring probe 7;

[0075] Also includes:

[0076] A connecting rod 3, with vertical rods 1 fixedly disposed below both ends of the connecting rod 3;

[0077] A lateral adjustment device, provided on the connecting rod 3, for adjusting the lateral position of the thickness measuring probe 7;

[0078] A vertical adjustment device 4 is fixedly arranged below the lateral adjustment device and is used to adjust the vertical position of the thickness measuring probe 7;

[0079] A detection device 5 is provided below the vertical adjustment device 4 and is used to fix the thickness measuring probe 7;

[0080] The thickness measuring probe 7 is detachably connected to the detection device 5 , and the main machine is arranged on the connecting rod 3 .

[0081] refer to Figure 2The lateral adjustment device includes a lateral screw 32, which is threadedly connected to a lateral slider 33. The lateral slider 33 is slidably arranged in a lateral slot 34 on the connecting rod 3. A through slot 35 is provided at the bottom of the lateral slot 34. The bottom of the lateral slider 33 is connected to the vertical adjustment device through the through slot 35. One end of the lateral screw 32 is fixedly connected to the motor shaft of the lateral motor 30 in the axial direction, and the other end is rotatably connected to the connecting rod 3. The lateral motor 30 is fixedly arranged on the connecting rod 3 and electrically connected to the control device. The control device is arranged on the connecting rod 3. In some embodiments, reference Figure 2 and Figure 1 A detachable cover plate 6 for protection is provided above the lateral adjustment device; a lateral support plate 31 is provided outside the motor shaft of the lateral motor 30, the lateral support plate 31 is fixedly connected to the connecting rod 3, and the motor shaft of the lateral motor 30 is rotatably penetrated in the lateral support plate 31.

[0082] refer to Figure 4 and Figure 5 The vertical adjustment device 4 includes a connecting slide column 40 fixedly arranged below the horizontal slider 33, and angle steels 41 are fixedly arranged around the bottom of the connecting slide column 40. A vertical slideway for sliding through the vertical slider 45 is formed between the angle steels 41; a bottom plate 47 fixedly connected to the angle steel 41 is arranged below the vertical slideway; an internal threaded opening 452 is arranged inside the vertical slider 45 on the side close to the connecting slide column 40, and the internal threaded opening 452 is threadedly connected to one end of the vertical screw rod 44, and the other end of the vertical screw rod 44 is fixedly connected to the axial direction of the motor shaft of the vertical motor 42; the vertical motor 42 is fixedly arranged on the connecting slide column 40 and is electrically connected to the control device; a pressure column 46 is fixedly arranged on the end of the vertical slider 45 close to the bottom plate 47, and the pressure column 46 is fixedly connected to the detection device 5 after sliding through the sliding hole 48 on the bottom plate 47. Reference Figure 5 The vertical slider 45 includes a sliding body 450, an internal threaded opening 452 is provided in the sliding body 450, and a sliding bottom 451 is fixedly provided at the bottom of the sliding body 450; similar to the lateral adjustment device, a vertical support plate 43 is provided outside the motor shaft of the vertical motor 42, and the vertical support plate 43 is fixedly connected to the angle steel 41, and the motor shaft of the vertical motor 42 is rotatably penetrated in the vertical support plate 43.

[0083] refer to Figure 6 , Figure 7 and Figure 8In some embodiments, the detection device 5 includes a fixed sleeve 50 fixedly arranged below the pressure column 46, wherein the fixed sleeve 50 is provided with a first pressure plate 590 and a second pressure plate 591, wherein the first pressure plate 590 is fixedly arranged inside the fixed sleeve 50, and the second pressure plate 591 is provided with a clamping screw 592, wherein the clamping screw 592 is threadedly connected to the fixed sleeve 50; the bottom of the clamping screw 592 is located inside the second pressure plate 591 and is rotatably connected to the second pressure plate 591. The second pressure plate 591 is provided with a sliding rod 593 fixedly arranged on both sides of the clamping screw 592, wherein the fixed sleeve 50 is provided with a sliding opening that cooperates with the sliding rod 593, wherein the sliding rod 593 is slidably inserted into the sliding opening; and the fixed sleeve 50 is provided with a wire passing opening 58.

[0084] In some embodiments, a buffer mechanism is detachably connected below the fixed sleeve 50, and the buffer mechanism includes a mounting ring 52 detachably connected to the fixed sleeve 50, a pressure ring 54 is provided below the mounting ring 52, and a buffer spring 53 is fixedly provided between the mounting ring 52 and the pressure ring 54; a plurality of guide cylinders 57 are fixedly provided on the outer side of the mounting ring 52, and vertical sliding rods 55 are slidably inserted into the guide cylinders 57; the bottom of the vertical sliding rods 55 are fixedly provided on the pressure ring 54.

[0085] In some embodiments, a pressure sensor is fixedly provided between the buffer spring 53 and the mounting ring 52, and the pressure sensor is electrically connected to the control device; a limit block 56 is fixedly mounted on the vertical slide rod 55, and when the limit block 56 abuts against the guide cylinder 57, the plane where the bottom of the pressure ring 54 is located is the same as the plane where the bottom of the thickness measuring probe 7 is located.

[0086] In some embodiments, a base 2 is fixedly disposed below the upright pole 1; Fig. 9 The base 2 includes a fixed block 20, and a suction cup action space 21 is provided inside the fixed block 20;

[0087] The upright pole 1 is fixedly arranged on the column 10 above the fixed block 20, and a vertical tube 11 is fixedly arranged above the column 10, and a clamping space 12 is formed in the vertical tube 11; a suction cup 15 is arranged in the suction cup action space 21, and the top of the suction cup 15 is fixedly connected to the bottom of the pressure rod 14, and the pressure rod 14 is slidably penetrated in the column 10 and extends to the top of the connecting rod 3 and is slidably connected to the connecting rod 3; a clamping spring 13 is arranged outside the pressure rod 14 in the clamping space 12 in the vertical tube 11, and the top of the clamping spring 13 is against the bottom of the pressure head 17, the inner side of the pressure head 17 is fixedly connected to the pressure rod 14, and the outer side of the pressure head 17 protrudes out of the vertical tube 11 through a compression seam 16 arranged on the vertical tube 11; the pressure head 17 can move up and down in the compression seam 16.

[0088] In some embodiments, the fixing block 20 is provided with a vent hole for connecting the suction cup action space 21 with the outside.

[0089] The present application provides a method for detecting the film thickness of an aluminum profile, based on the above-mentioned device for detecting the film thickness of an aluminum profile, comprising the following steps:

[0090] Step 1: Obtain the pressure value of the pressure sensor when the limit block 56 abuts against the guide cylinder 57 , calculate the deformation of the buffer spring 53 :

[0091]

[0092] in: is the elastic coefficient of the buffer spring 53;

[0093] Get the maximum pressure of aluminum profile membrane ;

[0094] Step 2: Place the aluminum profile film thickness detection device on the aluminum profile whose film thickness needs to be detected. After the base 2 is close to the aluminum profile, manually press the pressure head 17 to make the suction cups 15 in the two bases 2 adsorb on the aluminum profile. According to actual conditions, the aluminum profile film thickness detection device can also be placed on other detection platforms, as long as the surface of the detection platform is parallel to the plane of the aluminum profile to be detected;

[0095] refer to Fig. 9 After the pressure head 17 is manually pressed, the compression spring 13 is compressed, and the suction cup 15 is adsorbed on the aluminum profile. If the pressure head 17 can bounce up when the pressure head 17 is released, it means that the suction cup 15 is not adsorbed firmly. Continue to manually press the pressure head 17 until the pressure head 17 cannot bounce up. The purpose of this design is to ensure the stability of the detection device and the stability of the detection results. In particular, when the buffer device is ensured to apply pressure to the aluminum profile film, the suction cup 15 can give a force in the opposite direction to achieve the stability of the aluminum profile film thickness detection device.

[0096] When removing, it is only necessary to manually tilt the upright pole 1 to make the suction cup 15 leave the adsorbed position.

[0097] Step 3: The control device controls the lateral motor 30 to rotate, so that the thickness measuring probe 7 moves horizontally and stops above the position where the film thickness needs to be detected;

[0098] Step 4: The control device controls the vertical motor 42 to rotate, so that the thickness measuring probe 7 moves downward;

[0099] In this process, the control device obtains the pressure value of the pressure sensor in real time. :

[0100] when ≥ When the control device controls the vertical motor 42 to rotate in the opposite direction, the thickness measuring probe 7 moves upward for a distance until The purpose of moving the thickness probe 7 to this distance is to prevent ≥ When the pressure ring 54 at the bottom of the buffer device exerts more than The pressure may damage the aluminum profile film;

[0101] At this time, the aluminum profile film thickness T is:

[0102]

[0103] Where: t is the film thickness value measured by the eddy current thickness gauge.

[0104] The aluminum profile film thickness detection device of the present application is provided with a lateral adjustment device and a vertical adjustment device, so that the eddy current thickness gauge can maintain a vertical measurement with the aluminum profile film every time; at the same time, by providing a suction cup in the base, the device and the aluminum profile are ensured to have a certain suction force, which is more stable when using the eddy current thickness gauge. The buffer device ensures that the thickness measuring probe will not be compressed.

[0105] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0106] Although the above describes the specific implementation methods of the present application in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present application. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present application, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present application.

Claims

1. A method for detecting the film thickness of an aluminum profile, based on an aluminum profile film thickness detection device, characterized in that: The aluminum profile film thickness detection device comprises an eddy current thickness gauge, and the eddy current thickness gauge comprises a main unit and a thickness measuring probe (7); Also includes: A connecting rod (3), with vertical rods (1) fixedly provided below both ends of the connecting rod (3); A lateral adjustment device, provided on the connecting rod (3), for adjusting the lateral position of the thickness measuring probe (7); A vertical adjustment device (4) is fixedly arranged below the lateral adjustment device and is used to adjust the vertical position of the thickness measuring probe (7); A detection device (5) is disposed below the vertical adjustment device (4) and is used to fix the thickness measuring probe (7); The thickness measuring probe (7) is detachably connected to the detection device (5); The transverse adjustment device comprises a transverse screw rod (32), the transverse screw rod (32) being threadedly connected to a transverse slider (33), the transverse slider (33) being slidably arranged in a transverse slide groove (34) on the connecting rod (3); a through groove (35) is formed at the bottom of the transverse slide groove (34), and the bottom of the transverse slider (33) is connected to the vertical adjustment device via the through groove (35); One end of the transverse screw rod (32) is fixedly connected to the motor shaft of the transverse motor (30) in the axial direction, and the other end is rotationally connected to the connecting rod (3); The transverse motor (30) is fixedly mounted on the connecting rod (3) and is electrically connected to the control device; The vertical adjustment device (4) comprises a connecting slide column (40) fixedly arranged below the horizontal slide block (33); angle steels (41) are fixedly arranged around the connecting slide column (40); a vertical slideway for sliding the vertical slide block (45) is formed between the angle steels (41); a bottom plate (47) fixedly connected to the angle steels (41) is arranged below the vertical slideway; An internal thread opening (452) is provided on one side of the vertical sliding block (45) close to the connecting sliding column (40), the internal thread opening (452) is threadedly connected to one end of the vertical screw rod (44), and the other end of the vertical screw rod (44) is fixedly connected to the motor shaft of the vertical motor (42) in the axial direction; The vertical motor (42) is fixedly mounted on the connecting slide column (40) and is electrically connected to the control device; A pressure column (46) is fixedly provided at one end of the vertical sliding block (45) close to the bottom plate (47); the pressure column (46) slides through a sliding hole (48) on the bottom plate (47) and is fixedly connected to the detection device (5); The detection device (5) comprises a fixed sleeve (50) fixedly arranged below the pressure column (46), wherein a first pressure plate (590) and a second pressure plate (591) are arranged in the fixed sleeve (50), wherein the first pressure plate (590) is fixedly arranged inside the fixed sleeve (50), and the second pressure plate (591) is provided with a clamping screw (592), wherein the clamping screw (592) is threadedly connected to the fixed sleeve (50); the bottom of the clamping screw (592) is located inside the second pressure plate (591) and is rotatably connected to the second pressure plate (591); The second pressing plate (591) is provided with sliding rods (593) fixedly disposed on the upper and lower sides of the clamping screw (592); the fixed sleeve (50) is provided with a sliding opening that cooperates with the sliding rod (593); the sliding rod (593) is slidably inserted into the sliding opening; The fixed sleeve (50) is provided with a wire passing opening (58); A buffer mechanism is detachably connected below the fixed sleeve (50), the buffer mechanism comprising a mounting ring (52) detachably connected to the fixed sleeve (50), a pressure ring (54) is provided below the mounting ring (52), and a buffer spring (53) is fixedly provided between the mounting ring (52) and the pressure ring (54); A plurality of guide cylinders (57) are fixedly provided on the outside of the mounting ring (52), and vertical slide bars (55) are slidably inserted into the guide cylinders (57); the bottoms of the vertical slide bars (55) are fixedly provided on the pressure ring (54); A pressure sensor is fixedly provided between the buffer spring (53) and the mounting ring (52), and the pressure sensor is electrically connected to the control device; A limit block (56) is fixedly mounted on the vertical slide bar (55), and when the limit block (56) abuts against the guide cylinder (57), the plane where the bottom of the pressure ring (54) is located is the same as the plane where the bottom of the thickness measuring probe (7) is located; The following steps are involved: Step 1: Obtain the pressure value of the pressure sensor when the limit block (56) abuts against the guide cylinder (57) , calculate the deformation of the buffer spring (53) : in: is the elastic coefficient of the buffer spring (53); Get the maximum pressure of aluminum profile membrane ; Step 2: placing the aluminum profile film thickness detection device on the aluminum profile whose film thickness needs to be detected, and after the base (2) is in close contact with the aluminum profile, manually pressing the pressure head (17) so that the suction cups (15) in the two bases (2) are adsorbed on the aluminum profile; Step 3: The control device controls the lateral motor (30) to rotate so that the thickness measuring probe (7) moves laterally and stops above the position where the film thickness needs to be detected; Step 4: The control device controls the vertical motor (42) to rotate, so that the thickness measuring probe (7) moves downward; In this process, the control device obtains the pressure value of the pressure sensor in real time. : when ≥ When the control device controls the vertical motor (42) to rotate in the opposite direction, the thickness measuring probe (7) moves upward for a certain distance until until; At this time, the aluminum profile film thickness T is: Where: t is the film thickness value measured by the eddy current thickness gauge.

2. The aluminum profile film thickness detection method according to claim 1, characterized in that: A base (2) is fixedly provided below the upright pole (1); The base (2) comprises a fixing block (20), and a suction cup action space (21) is provided inside the fixing block (20); The upright pole (1) is fixedly mounted on a column (10) above a fixed block (20); a vertical tube (11) is fixedly mounted above the column (10); a compression space (12) is formed in the vertical tube (11); A suction cup (15) is provided in the suction cup action space (21), the top of the suction cup (15) is fixedly connected to the bottom of the pressure rod (14), the pressure rod (14) is slidably inserted into the column (10) and extends to the top of the connecting rod (3) and is slidably connected to the connecting rod (3); a compression spring (13) is provided in the compression space (12) located in the vertical tube (11) outside the pressure rod (14), the top of the compression spring (13) is against the bottom of the pressure head (17), the inner side of the pressure head (17) is fixedly connected to the pressure rod (14), and the outer side of the pressure head (17) protrudes out of the vertical tube (11) through a compression seam (16) provided on the vertical tube (11); The pressing head (17) can move up and down in the pressing gap (16).

3. The aluminum profile film thickness detection method according to claim 2, characterized in that: The fixing block (20) is provided with an air hole for connecting the suction cup action space (21) with the outside.

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