Film thickness gauge for testing surface coating of metal exterior part

Abstract

The utility model relates to the technical field of metal appearance part surface coating thickness testing, and discloses a film thickness gauge for metal appearance part surface coating testing, which comprises a film thickness gauge body and a base, the base is provided with sliding rails, limiting rods are fixedly arranged in the two sliding rails, the two limiting rods are provided with limiting sliding blocks in a sleeved mode, and the limiting sliding blocks are arranged on the base. A sample table is fixed to the upper ends of the two limiting sliding blocks, and two trapezoidal baffles are fixedly connected to the upper end face of the sample table; a lead screw is installed in the center of the base and sleeved with a power sliding block, and the upper end of the power sliding block is fixedly connected with a sample table. A sample inlet is formed in the front end face of the film thickness gauge body, a protective door is installed on the sample inlet in an up-down sliding mode, and an X-ray thickness measuring assembly is installed on the inner top face of the film thickness gauge body. According to the utility model, the sample table can be automatically pushed out and withdrawn and is linked with the protective door to seal the test environment, the automation of the sample table is convenient for accurate positioning in the test, the sealed test environment can effectively isolate the influence of the external environment on the test, and the test accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of surface coating testing of metal appearance parts, and specifically relates to a film thickness gauge for testing the surface coating of metal appearance parts. Background Technique

[0002] Metal appearance parts are widely used in daily production and life. However, their usage environment is complex. If they are used without treatment for a long time, they are easily corroded, the surface aesthetics decreases, and even the strength is affected. Coatings can be applied to their surfaces as needed. To balance the coating protection effect and economic benefits, it is necessary to control the coating thickness, and a film thickness gauge that can test the coating thickness is required.

[0003] For example, the patent document CN215114449U discloses an efficient focusing device for X-ray fluorescence coating thickness analyzer, including a base, a detection box, a moving platform, a test object, an X-ray tube, a collimator, a detector, a focusing screw rod and a support foot. A collimator is provided directly below the X-ray tube in the detection box. A focusing screw rod is provided on one side of the collimator. The X-ray tube matches the collimator. During actual use, through the joint adjustment of the moving platform and the focusing screw rod on the collimator, the test object is located directly below the collimator, and the collimator is focused on the test object, so that the X-ray irradiates the test object, and then the test object is absorbed by the detector through X-ray fluorescence spectroscopy for analysis, and the electroplating film thickness of the test object is calculated through calculation. However, there are still many deficiencies in this prior art. For example, the sample stage cannot be automatically pushed out, retracted and closed the test environment. The manual control of the sample stage position is not accurate enough. The open environment may also affect the test results and is not conducive to improving the test accuracy. Content of the Utility Model

[0004] The purpose of the utility model is to provide a film thickness gauge for testing the surface coating of metal appearance parts to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A film thickness gauge for testing the surface coating of metal appearance parts, including a film thickness gauge body and a base. A plurality of slide rail installation grooves are opened in the base. Slide rails are fixedly installed in both of the two slide rail installation grooves. Limit rods are fixedly installed in both of the two slide rails. The two limit rods are both sleeved with limit sliders. A sample stage is fixedly connected to the upper ends of the two limit sliders. Two trapezoidal baffles are fixedly connected to the upper end surface of the sample stage. A lead screw installation groove is opened at the center of the base. A lead screw is installed in the lead screw installation groove. A power slider is sleeved on the lead screw. The power slider is fixedly connected to the sample stage at the upper end. An inlet is opened on the front end surface of the film thickness gauge body. A protective door is slidably installed up and down at the inlet. An X-ray thickness measurement component is installed on the inner top surface of the film thickness gauge body.

[0006] As a further improvement to the above solution, an inclined surface is provided on the outer side of the lower end of the protective door, and rollers are installed on both of the inclined surfaces. An auxiliary light source is provided inside the protective door.

[0007] As a further improvement to the above solution, a micro motor is embedded in the sample stage, and the output end of the micro motor is fixedly connected to a sample tray through a transmission.

[0008] As a further improvement to the above solution, an auxiliary frame is sleeved at the connection between the micro motor and the sample tray, and a number of auxiliary wheels are provided on the outer side of the auxiliary frame.

[0009] As a further improvement to the above solution, an annular groove is provided on the lower surface of the sample tray, and an annular groove corresponding to the sample tray is provided on the upper surface of the sample stage. A number of the auxiliary wheels are cooperatively installed in the two annular grooves.

[0010] As a further improvement to the above solution, the rear end of the lead screw is connected to the output end of the motor through a transmission. Two springs are sleeved on the lead screw, and the two springs are respectively installed on the front and rear end faces of the power slider.

[0011] As a further improvement to the above solution, the X-ray thickness measurement assembly includes an X-ray generator and an X-ray probe. The X-ray generator is fixedly installed inside the X-ray thickness measurement assembly. The emission port of the X-ray probe is arranged downward. An image collector is provided beside the X-ray probe, and a supplementary light is fixedly connected to the lower end of the image collector.

[0012] As a further improvement to the above solution, a control panel is provided on the upper end face of the film thickness gauge body, and a display screen and a number of control buttons are installed on the control panel.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the present utility model, by installing sliding rails inside the base, limiting rods are fixedly installed in both of the two sliding rails, and limiting sliders are sleeved and installed on both of the two limiting rods; a central lead screw is installed on the base, a power slider is sleeved on the lead screw, and the two limiting sliders and the power slider are fixedly connected to the upper end of the sample stage, enabling the sample stage to be automatically pushed out and retracted. When pushed out, it is convenient to place the sample and beneficial for personnel operation; a sample inlet is provided on the front end face of the film thickness gauge body, and a protective door is slidably installed up and down at the sample inlet. By fixedly connecting two trapezoidal baffles to the upper end face of the sample stage, the pushing out and retracting of the sample stage and the rising and falling of the protective door are linked, isolating the interior of the instrument from the external environment, reducing the contact between personnel and the radiation source and the influence of the external environment on the test, and ensuring the safety and accuracy of the test.

[0015] In this utility model, a micro motor is embedded in the sample stage. The output end of the micro motor is fixedly connected to a sample tray through a transmission. The upper surface of the sample tray is divided into several sample placement areas. An auxiliary frame is sleeved at the connection between the micro motor and the sample tray. Several auxiliary wheels are arranged on the outer side of the auxiliary frame. An annular groove is formed on the lower surface of the sample tray, and an annular groove corresponding to the sample tray is formed on the upper surface of the sample stage. The several auxiliary wheels are cooperatively installed in the two annular grooves. During testing, samples are placed correspondingly in different areas on the sample tray, and the machine tests multiple samples in different areas by rotating the sample tray, reducing the number of times of sample placement by personnel and improving the testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of this utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of this utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a three-dimensional structural schematic diagram of this utility model;

[0018] Figure 2 is a schematic diagram of the internal structure of the base of this utility model;

[0019] Figure 3 is a three-dimensional structural schematic diagram of the protective door in this utility model;

[0020] Figure 4 is a structural schematic diagram of the sample stage in this utility model;

[0021] Figure 5 is a disassembled schematic diagram of the sample tray in this utility model;

[0022] Figure 6 is a block diagram of the X-ray thickness measurement component in this utility model;

[0023] In the figure: 1. Film thickness gauge body; 11. Sampling port; 12. Control panel; 121. Display screen; 122. Control button; 2. Base; 3. Slide rail installation groove; 4. Slide rail; 41. Limit rod; 42. Limit slider; 5. Sample stage; 51. Trapezoidal baffle; 52. Micro motor; 53. Sample tray; 54. Auxiliary frame; 55. Auxiliary wheel; 56. Annular groove; 6. Lead screw installation groove; 61. Lead screw; 62. Power slider; 63. Electric motor; 64. Spring; 7. Protective door; 71. Inclined surface; 72. Roller; 73. Auxiliary light source; 8. X-ray thickness measurement component; 81. X-ray generator; 82. X-ray probe; 83. Image collector; 84. Supplementary light. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0025] A film thickness gauge for testing the surface coating of a metal appearance part, as Figures 1 to 4 shown, including a film thickness gauge body 1 and a base 2. A plurality of slide rail installation grooves 3 are opened in the base 2. The base 2 is usually made of plastic. By installing metal slide rails 4 through grooving, the smoothness of the sliding of the limit slider 42 can be improved, and it is convenient for repairing and replacing parts, reducing the repair cost and improving the repair efficiency. Slide rails 4 are fixedly installed in both of the two slide rail installation grooves 3. Limit rods 41 are fixedly installed in both of the two slide rails 4. Limit sliders 42 are sleeved and installed on both of the two limit rods 41. A sample stage 5 is fixedly installed on the upper ends of the two limit sliders 42. Both ends of the two limit rods 41 are fixed at both ends of the slide rail 4, and play a supporting role for the limit slider 42 after the sample stage 5 extends out with the limit slider 42, improving the stability of the sample stage 5.

[0026] As Figures 1 to 4 shown, two trapezoidal baffles 51 are fixedly connected to the upper end surface of the sample stage 5. When the sample stage 5 is pushed outwards, the trapezoidal baffle 51 can push the protective door 7 to slide upwards. When the sample stage 5 is pushed in place, the horizontal plane at the upper end of the trapezoidal baffle 51 can limit the fall of the protective door. A lead screw installation groove 6 is opened in the center of the base 2. A lead screw 61 is installed in the lead screw installation groove 6. A power slider 62 is sleeved on the lead screw 61. The upper end of the power slider 62 is fixedly connected to the sample stage 5. The rear end of the lead screw 61 is connected to the output end of the motor 63 through a transmission. Two springs 64 are sleeved on the lead screw 61. The two springs 64 are respectively installed on the front and rear end surfaces of the power slider 62. The springs 64 play a buffering role when the sample stage 5 is pushed out or retracted, reducing the influence of vibration on the sample.

[0027] As Figure 1 、 Figure 3As shown in the figure, a sample inlet 11 is provided on the front end face of the film thickness gauge body 1. A protective door 7 is slidably mounted up and down at the sample inlet 11. An inclined surface 71 is provided on the outer side of the lower end of the protective door 7. Two rollers 72 are mounted on the two inclined surfaces 71. The slopes of the two inclined surfaces are the same as the inclined surface angle of the trapezoidal baffle 51, which is conducive to lifting the protective door 7. An auxiliary light source 73 is provided inside the protective door 7 for illuminating the sample placement area when the sample stage 5 is pushed out to assist in placing the sample. A control panel 12 is provided on the upper end face of the film thickness gauge body 1. A display screen 121 and several control buttons 122 are mounted on the control panel 12. The display 121 and the control buttons 122 are used to display device information or use the built-in simple test function. More complex measurement and recording functions can be achieved by connecting to a computer and using the corresponding software.

[0028] As Figure 6 shown in the figure, an X-ray thickness measurement component 8 is mounted on the inner top surface of the film thickness gauge body 1. The X-ray thickness measurement component 8 includes an X-ray generator 81 and an X-ray probe 82. The X-ray generator 81 is fixedly mounted inside the X-ray thickness measurement component 8. The X-ray probe 82 is an X-ray tube connected to a high-voltage power supply, which can generate X-rays with a certain wavelength according to the test needs. The emission port of the X-ray probe 82 is set downward. The X-ray probe 82 integrates the functions of emission and reception, and can emit the X-rays generated by the X-ray generator 81 onto the sample to be tested and receive the reflected X-rays. An image collector 83 is provided beside the X-ray probe 82. A supplementary light 84 is fixedly connected to the lower end of the image collector 83. The image collector 83 can output the internal environment to the display screen 121 on the film thickness gauge body 1 or an external computer, which is convenient for adjusting the sample position to ensure accurate sample testing.

[0029] When the first embodiment works, the film thickness gauge body 1 is connected to the power supply and the computer. The motor is controlled by the control software to drive the lead screw 61 to rotate clockwise, and the sample stage 5 is pushed out. When the sample stage moves outwards, the trapezoidal baffle 51 on the sample stage 5 lifts the protective door 7 upwards. After the sample stage 5 is pushed out in place, the lower end of the protective door 7 just gets stuck at the horizontal position of the trapezoidal baffle 51, which is convenient for personnel to operate. According to the need, one or more samples are placed in the corresponding test area of the sample stage 5. The motor is controlled by the control software to drive the lead screw 61 to rotate counterclockwise, and the sample stage 5 is retracted. The protective door 7 without the support of the trapezoidal baffle 51 falls slowly along the inclined surface part of the trapezoidal baffle 51 under the action of gravity. When the sample stage 5 is completely retracted, the protective door 7 just completely falls, cooperating with the sample stage to isolate the internal and external environments. The image collector 83 will collect the internal sample image and transmit it to the external computer, and focus according to the sample image, emit and receive X-rays, form data through processing and calculation, and record. Embodiment 2

[0030] Embodiment 2 is based on Embodiment 1. As Figure 4 、 Figure 5As shown in the figure, a micro motor 52 is embedded in the sample stage 5. The output end of the micro motor 52 is fixedly connected to a sample disk 53 through a transmission. The X-ray emission position is not at the center of the sample disk 53. The sample disk 53 can rotate following the micro motor. For samples that require multi-point testing, there is no need to reposition the sample. A support frame 54 is sleeved at the connection between the micro motor 52 and the sample disk 53. A number of auxiliary wheels 55 are arranged on the outer side of the support frame 54. The support frame 54 plays a supporting role for the sample disk 53. An annular groove 56 is formed on the lower surface of the sample disk 53, and an annular groove 56 corresponding to the sample disk 53 is formed on the upper surface of the sample stage 5. A number of auxiliary wheels 55 are cooperatively installed in the two annular grooves 56. The installation of the auxiliary wheels 55 in the annular grooves 56 ensures the stable rotation of the sample disk and improves the testing efficiency.

[0031] In Embodiment 2, multiple samples are placed in different areas on the sample disk 53. According to the internal sample image collected by the image collector 83, after one sample test is completed, the sample disk 53 is rotated by controlling the micro motor 52 to adjust the sample in the next area to the test area for testing. After the test is completed, the samples in the remaining areas are sequentially tested. There is no need to manually adjust the sample position, nor to replace the sample multiple times. This not only reduces the contact between personnel and the radiation source, but also improves the testing efficiency.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A film thickness gauge for testing the surface coating of a metal appearance part, comprising a film thickness gauge body (1) and a base (2), characterized in that: The base (2) is provided with a plurality of slide rail installation grooves (3). Slide rails (4) are fixedly installed in both of the two slide rail installation grooves (3). Limit rods (41) are fixedly installed in both of the two slide rails (4). Limiting sliders (42) are sleeved on both of the two limit rods (41). A sample stage (5) is fixedly connected to the upper ends of the two limiting sliders (42). Two trapezoidal baffles (51) are fixedly connected to the upper end surface of the sample stage (5). A lead screw installation groove (6) is formed in the center of the base (2). A lead screw (61) is installed in the lead screw installation groove (6). A power slider (62) is sleeved on the lead screw (61). The upper end of the power slider (62) is fixedly connected to the sample stage (5). An inlet (11) is formed in the front end surface of the film thickness gauge body (1). A protective door (7) is slidably installed up and down at the inlet (11). An X-ray thickness measurement component (8) is installed on the inner top surface of the film thickness gauge body (1).

2. The film thickness gauge for testing the surface coating of a metal appearance part according to claim 1, wherein: An inclined surface (71) is formed on the outer side of the lower end of the protective door (7). Rollers (72) are installed on both of the two inclined surfaces (71). An auxiliary light source (73) is arranged inside the protective door (7).

3. The film thickness gauge for testing the surface coating of a metal appearance part according to claim 1, characterized in that: A micro motor (52) is embedded in the sample stage (5). The output end of the micro motor (52) is fixedly connected to a sample tray (53) through a transmission.

4. A film thickness gauge for testing the surface coating of a metal appearance part according to claim 3, characterized in that: An auxiliary frame (54) is sleeved at the connection between the micro motor (52) and the sample tray (53). A number of auxiliary wheels (55) are arranged outside the auxiliary frame (54).

5. A film thickness gauge for testing the surface coating of a metal appearance part according to claim 4, characterized in that: An annular groove (56) is formed in the lower surface of the sample tray (53). An annular groove (56) corresponding to the sample tray (53) is formed in the upper surface of the sample stage (5). The number of the auxiliary wheels (55) is cooperatively installed in the two annular grooves (56).

6. The film thickness gauge for testing the surface coating of a metal appearance part according to claim 1, characterized in that: The rear end of the lead screw (61) is connected to the output end of a motor (63) through a transmission. Two springs (64) are sleeved on the lead screw (61). The two springs (64) are respectively installed on the front and rear end faces of the power slider (62).

7. A film thickness gauge for testing the surface coating of a metal appearance part according to claim 1, characterized in that: The X-ray thickness measurement component (8) includes an X-ray generator (81) and an X-ray probe (82). The X-ray generator (81) is fixedly installed in the X-ray thickness measurement component (8). The emission port of the X-ray probe (82) is arranged downward. An image collector (83) is arranged beside the X-ray probe (82). A supplementary light lamp (84) is fixedly connected to the lower end of the image collector (83).

8. A film thickness gauge for testing the surface coating of a metal appearance part according to claim 1, characterized in that: A control panel (12) is arranged on the upper end surface of the film thickness gauge body (1). A display screen (121) and a number of control buttons (122) are installed on the control panel (12).

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