Cleanliness detection device for metal surface

Abstract

The utility model discloses a cleanliness detection device for a metal surface, and relates to the technical field of detection equipment. The utility model includes a photoelectric detector, a linear laser, a shell and a control panel; the photoelectric detector and the linear laser are respectively fixedly mounted on the bottom surface of the shell, and are electrically connected to the control panel, the control panel is electrically connected to a display screen, and the display screen is fixedly mounted on the top surface of the shell; a battery pack is fixedly mounted inside the shell, and the battery pack supplies power to all devices in the shell. The utility model uses the photoelectric detector, the linear laser, the shell and the control panel, and because the presence of stains, dust and corrosion on the metal surface will increase the intensity loss to a certain extent during the laser reflection process, the photoelectric detector can collect the intensity of the laser after reflection, and the control panel analyzes and calculates the loss rate; it has the advantages of rapid detection and fewer detection restrictions.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection equipment, in particular to a cleanliness detection device for a metal surface. Background Art

[0002] Metal parts need to be cleaned and tested for surface smoothness before further surface processing. Currently, the cleanliness and smoothness of metal surfaces are judged by visual observation. However, visual observation is not only slow in detection speed and relatively low in accuracy, but also results in different judgments due to personal subjective differences, resulting in large differences in detection results.

[0003] After the existing equipment cleans the metal surface, it is necessary to test the surface cleanliness to ensure the quality of the subsequent metal surface deep processing products. The existing methods are roughly divided into image recognition, water film method, particle size method and other methods for detection. Among them, image recognition has many restrictions on conditions such as shooting angle and position, ambient light, etc., while the detection efficiency of water film method and particle size method is low, resulting in low detection efficiency and many detection restrictions.

[0004] In view of the above-mentioned problems of low detection efficiency or many detection restrictions, the purpose of the utility model is to provide a cleanliness detection device for a metal surface. Utility Model Content

[0005] The purpose of the utility model is to provide a cleanliness detection device for a metal surface. Through the functions of a photoelectric detector, a linear laser, a shell and a control panel, when it is necessary to detect the cleanliness and smoothness of the metal surface, the linear laser is irradiated obliquely on the metal surface, and the intensity of the reflected laser can be collected according to the photoelectric detector, and the control panel is used to analyze and calculate the loss rate, so that the cleanliness and smoothness of the metal surface can be relatively judged; the effect of rapid detection and fewer detection restrictions is achieved; and the above-mentioned problems of low detection efficiency or more detection restrictions are solved.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a metal surface cleanliness detection device, comprising a photoelectric detector for detecting laser intensity, a linear laser, a shell and a control panel; the bottom surface of the shell is respectively fixedly mounted with a photoelectric detector and a linear laser, the photoelectric detector and the linear laser are electrically connected to the control panel, the control panel is electrically connected with a display screen, and the display screen is fixedly mounted on the top surface of the shell; an operating handle is fixedly mounted on one end of the shell, a battery pack is fixedly mounted inside the operating handle, and the battery pack supplies power to all devices in the shell; firstly, one or several metal parts with cleanliness and surface smoothness meeting the standards are selected, and the utility model is used to detect the cleanliness of the metal surface; A metal surface cleanliness detection device is used to detect the surface of the metal part. At this time, the laser intensity value or intensity range collected by the photoelectric detector will be set as a reference threshold or threshold range; when the cleanliness of the metal surface needs to be detected, if the collected laser intensity value is not lower than the lowest value in the threshold range, it can be judged that the metal part meets the standard; if the collected laser intensity value is lower than the lowest value in the threshold range, it can be judged that the metal part does not meet the standard; that is, the cleanliness and smoothness of the surface of the metal part are relatively low, so that the stains, dust and corrosion on the surface are high, resulting in a high deterioration rate, which in turn makes the collected laser intensity value lower than the threshold.

[0008] As a preferred technical solution of the utility model, a laser ranging sensor is also fixedly installed on the bottom surface of the shell, and the laser ranging sensor is electrically connected to the control panel; the centers of the photoelectric detector, the linear laser, and the laser ranging sensor are all located on the same plane, and the line segment where the plane intersects with the surface of the metal part needs to be parallel to the center line connecting the photoelectric detector and the linear laser. This parallel state requires the operator to adjust the posture of the shell so that its bottom surface remains parallel to the line segment; its purpose is to ensure that the laser emitted by the linear laser can still reach the photoelectric detector after reflection; the laser ranging sensor is used to detect the distance between the linear laser and the surface of the metal part, thereby adjusting the irradiation angle of the linear laser according to the distance to ensure that the photoelectric detector can receive the laser emitted by the linear laser and reflected.

[0009] As a preferred technical solution of the utility model, a rotating shaft for adjusting the irradiation angle of the linear laser is also installed inside the shell; because the distance between the photodetector and the linear laser is fixed, when the distance between the photodetector and the linear laser and the surface of the metal part changes again, the irradiation angle of the linear laser needs to be adjusted to ensure that the laser emitted by the linear laser and reflected just irradiates the photodetector.

[0010] As a preferred technical solution of the utility model, a knob is fixedly connected to the outer end of the rotating shaft; the knob is manually adjusted, and the precision of the manual adjustment method is relatively low, and the adjustment efficiency is low, and it cannot be adjusted in real time; it can only be adapted to when the surface of the metal part is flat and the detection height is fixed; therefore, the following micro-motor adjustment method is designed.

[0011] As a preferred technical solution of the utility model, a micro motor is fixedly connected to the outer end of the rotating shaft, and the micro motor is electrically connected to the control panel; the control panel adjusts the linear laser in real time based on the ranging information collected in real time by the laser ranging sensor.

[0012] As a preferred technical solution of the utility model, a cover is fixedly installed on the bottom surface of the shell outside the photoelectric detector and the linear laser; the cover is used to play a certain degree of protection effect.

[0013] As a preferred technical solution of the utility model, a camera is also fixedly installed on the bottom surface of the shell, and the camera is electrically connected to the control panel, and the video information is presented in real time on the display screen; the camera is used to facilitate the operator to align the linear laser on the bottom surface of the shell with the position required to be inspected on the surface of the metal part for operation.

[0014] The utility model has the following beneficial effects:

[0015] The utility model uses the functions of a photoelectric detector, a linear laser, a shell and a control panel. When it is necessary to detect the cleanliness and smoothness of a metal surface, the linear laser is irradiated obliquely on the metal surface. At this time, if the metal surface is rough due to stains, dust and corrosion, the surface will increase the intensity loss caused to a certain extent in the laser reflection process; if the metal surface has a high degree of cleanliness and a relatively smooth surface, the loss caused by the surface in the laser reflection process is extremely small; the photoelectric detector can collect the intensity of the reflected laser, and the control panel can analyze and calculate the loss rate, so that the cleanliness and smoothness of the metal surface can be relatively judged; the effect of rapid detection and fewer detection restrictions is achieved.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the cleanliness detection device for metal surface of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the photoelectric detector, housing, and laser ranging sensor;

[0020] Figure 3 It is a schematic diagram of the structure of the housing, the knob and the cover;

[0021] Figure 4 It is a schematic diagram of the internal structure of the metal surface cleanliness detection device of the utility model;

[0022] Figure 5 This is a system block diagram of the metal surface cleanliness detection device of the utility model;

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1-photodetector, 2-linear laser, 3-housing, 4-display screen, 5-operating handle, 6-battery pack, 7-rotating axis, 8-knob, 9-micro motor, 10-cover, 11-camera, 12-laser ranging sensor. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1

[0027] See also Figure 1-5As shown, the utility model is a metal surface cleanliness detection device, comprising a photoelectric detector 1 for detecting laser intensity, a linear laser 2, a shell 3 and a control panel; the photoelectric detector 1 and the linear laser 2 are fixedly installed on the bottom surface of the shell 3, respectively, and the photoelectric detector 1 and the linear laser 2 are electrically connected to the control panel, and the control panel is electrically connected to a display screen 4, which is fixedly installed on the top surface of the shell 3; an operating handle 5 is fixedly installed at one end of the shell 3, and a battery pack 6 is fixedly installed inside the operating handle 5, and the battery pack 6 supplies power to all devices in the shell 3; first, one or more metal parts with cleanliness and surface smoothness that meet the standards are selected, and the present invention is used to detect the cleanliness of the metal surface. A cleanliness detection device for a metal surface of the utility model detects its surface, and at this time, the laser intensity value or intensity range collected by the photoelectric detector 1 will be set as a reference threshold or threshold range; when the cleanliness of the metal surface needs to be detected, if the collected laser intensity value is not lower than the lowest value in the threshold range, it can be judged that the metal part meets the standard; if the collected laser intensity value is lower than the lowest value in the threshold range, it can be judged that the metal part does not meet the standard; that is, the cleanliness and smoothness of the surface of the metal part are relatively low, so that the surface stains, dust, corrosion and roughness are high, resulting in a high deterioration rate, which in turn makes the collected laser intensity value lower than the threshold.

[0028] Among them Figure 1 As shown, a laser distance sensor 12 is also fixedly installed on the bottom surface of the shell 3, and the laser distance sensor 12 is electrically connected to the control panel; the centers of the photoelectric detector 1, the linear laser 2, and the laser distance sensor 12 are all located on the same plane, and the line segment where the plane intersects with the surface of the metal part needs to be parallel to the center line connecting the photoelectric detector 1 and the linear laser 2. This parallel state requires the operator to adjust the posture of the shell 3 so that its bottom surface remains parallel to the line segment; its purpose is to ensure that the laser emitted by the linear laser 2 can still reach the photoelectric detector 1 after reflection; the laser distance sensor 12 is used to detect the distance between the linear laser 2 and the surface of the metal part, so as to adjust the irradiation angle of the linear laser 2 according to the distance to ensure that the photoelectric detector 1 can receive the laser emitted by the linear laser 2 and reflected.

[0029] Among them Figure 1 As shown, a rotating shaft 7 for adjusting the irradiation angle of the linear laser 2 is also assembled inside the housing 3; because the distance between the photodetector 1 and the linear laser 2 is fixed, when the distance between the photodetector 1 and the linear laser 2 and the surface of the metal part changes, the irradiation angle of the linear laser 2 needs to be adjusted to ensure that the laser emitted by the linear laser 2 and reflected just irradiates the photodetector 1.

[0030] Among them Figure 3As shown, a cover body 10 is fixedly installed on the bottom surface of the shell 3 outside the photodetector 1 and the linear laser 2; the cover body 10 is used to provide a certain degree of protection; a camera 11 is also fixedly installed on the bottom surface of the shell 3, the camera 11 is electrically connected to the control panel, and the video information is presented in real time by the display screen 4; the camera 11 is used to facilitate the operator to align the linear laser 2 on the bottom surface of the shell 3 with the position on the surface of the metal part to be detected for operation.

[0031] Embodiment 2

[0032] A more preferred technical solution based on the first embodiment is as follows: Figure 2-3 As shown, the outer end of the rotating shaft 7 is fixedly connected to a knob 8; the knob 8 is manually adjusted, and the precision of the manual adjustment method is relatively low, and the adjustment efficiency is low, and it cannot be adjusted in real time; it can only be adapted to metal parts with flat surfaces and relatively fixed detection heights.

[0033] Embodiment 3

[0034] A more preferred technical solution based on the first embodiment is as follows: Figure 4-5 As shown, the outer end of the rotating shaft 7 is fixedly connected to a micro motor 9, which is a servo motor. The micro motor 9 is electrically connected to the control panel; the control panel adjusts the linear laser 2 in real time based on the ranging information collected in real time by the laser ranging sensor 12.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cleanliness detection device for a metal surface, characterized in that: It comprises a photoelectric detector (1) for detecting laser intensity, a linear laser (2), a housing (3) and a control panel; A photoelectric detector (1) and a linear laser (2) are fixedly mounted on the bottom surface of the housing (3), respectively; the photoelectric detector (1) and the linear laser (2) are both electrically connected to a control panel; the control panel is electrically connected to a display screen (4); and the display screen (4) is fixedly mounted on the top surface of the housing (3); An operating handle (5) is fixedly mounted on one end of the housing (3), a battery pack (6) is fixedly mounted inside the operating handle (5), and the battery pack (6) supplies power to all devices in the housing (3).

2. The metal surface cleanliness detection device according to claim 1, characterized in that: A laser distance sensor (12) is also fixedly mounted on the bottom surface of the housing (3), and the laser distance sensor (12) is electrically connected to the control panel; the centers of the photoelectric detector (1), the linear laser (2), and the laser distance sensor (12) are all located on the same plane.

3. The metal surface cleanliness detection device according to claim 2, characterized in that: A rotating shaft (7) for adjusting the irradiation angle of the linear laser (2) is also installed inside the housing (3).

4. The metal surface cleanliness detection device according to claim 3, characterized in that: The outer end of the rotating shaft (7) is fixedly connected with a knob (8).

5. The metal surface cleanliness detection device according to claim 3, characterized in that: The outer end of the rotating shaft (7) is fixedly connected to a micro motor (9), and the micro motor (9) is electrically connected to a control panel.

6. The metal surface cleanliness detection device according to claim 1, characterized in that: A cover body (10) is fixedly mounted on the bottom surface of the housing (3) outside the photodetector (1) and the linear laser (2).

7. The metal surface cleanliness detection device according to claim 1, characterized in that: A camera (11) is also fixedly mounted on the bottom surface of the housing (3), and the camera (11) is electrically connected to the control panel.

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