CN218270607U - Online film thickness detection device for cavity wax injection - Google Patents
Online film thickness detection device for cavity wax injection Download PDFInfo
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- CN218270607U CN218270607U CN202122942194.5U CN202122942194U CN218270607U CN 218270607 U CN218270607 U CN 218270607U CN 202122942194 U CN202122942194 U CN 202122942194U CN 218270607 U CN218270607 U CN 218270607U
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Abstract
The utility model relates to a thickness detection technical field specifically discloses online thick detection device of wax is annotated to cavity, including the driver, the image acquisition unit, image processing unit and the control unit, be connected with the direction joint between the output of driver and the image acquisition unit, the image acquisition unit can stretch into annotate inside and can gather the inside different regional images of cavity of wax cavity, the image processing unit is used for obtaining thick actual measurement data of membrane according to the image of gathering, the control unit is used for contrasting thick actual measurement data of membrane with predetermineeing the permission data, and send alarm signal after the comparison reachs the cavity and annotates wax nonconforming. The scheme solves the problems that in the prior art, the mode for manually inspecting the wax injection condition of the cavity has low efficiency and high cost and cannot be used for online detection in the production process of products.
Description
Technical Field
The utility model relates to a thickness detection technical field specifically is wax is annotated to cavity online membrane thickness detection device.
Background
In recent years, the national standards require that the white body has a service life of 10-15 years without perforation corrosion, the automobile body is provided with a plurality of cavities designed for increasing the strength of the body and reducing the weight of the body, the cavities are very complicated, and in the process of performing rust prevention treatment on the white body by using cathode electrophoretic coating, an electrophoretic film in the cavities is very thin due to the Faraday effect, and the surfaces of the cavities are easy to rust; in actual production, the mode of injecting wax into the cavity of the vehicle body is usually adopted to realize corrosion prevention.
The existing cavity wax injection mainly comprises four modes of traditional wax injection, semi-automatic wax injection, full-automatic wax injection and wax filling, wherein the wax filling process is rarely applied due to high energy consumption and equipment investment, the other three modes are all carried out by adopting a spraying mode, and the effective coverage of a wax film on a cavity in the traditional wax injection, semi-automatic wax injection and full-automatic wax injection processes is the key for realizing corrosion prevention.
The existing wax injection process only comprises a spraying process, and the actual coverage effect of the wax film is mainly determined by adopting a mode of sample car inspection or sample piece inspection; and the inspection of sample car inspection or sample spare inspection all adopt the manual work to carry out the inspection of spraying effect and confirm, usually have two kinds of modes when the manual work detects, one kind is the extra observation hole that needs to process on sample car or sample spare, and the spraying condition in the cavity is directly looked over through the observation hole to the manual work, and another kind is the notes wax hole that utilizes current cavity, looks over in real time in order to realize the inspection of cavity spraying condition in the cavity with the help of the endoscope through annotating the wax hole.
For convenient manual inspection, the fluorescent agent is added into the wax to be sprayed before the cavity is sprayed, so that after the sample piece is sprayed, the surface of the cavity is irradiated by an ultraviolet lamp, fluorescence is displayed in a wax film area with the fluorescent agent, the condition that whether the sample piece cavity is lack of the wax and the thickness of the wax film is too thin is judged manually by observing the fluorescent display condition of the inner surface of the cavity, and then whether the detected sample piece is qualified is confirmed. Although the mode can realize the inspection of the condition of injecting the wax into the cavity, the following problems still exist:
first, artifical when directly examining the cavity wax spraying condition through the observation hole, general observation hole only sets up one, look over the spraying condition of all surfaces in the cavity through an observation hole, there is the vision blind area because of the cavity structure is complicated to bring on the one hand, lead to not accomplishing the comprehensive inspection of cavity internal surface, the rate of accuracy of cavity wax injection effect inspection has been reduced, on the other hand, no matter be artifical carry out direct inspection or borrow the endoscope through the observation hole and inspect, because of the cavity structure is complicated and the automobile body cavity is many, lead to that it is long and the cost of labor is high to inspect at every turn, so in the actual production, mostly all adopt the selective examination mode to inspect, but the mode of selective examination is because of there being the contingency, the rate of accuracy of detection has further been reduced.
Secondly, when annotating the wax condition through manual detection cavity, look over the spraying condition through the naked eye because of the manual work, look over the process and only can see whether to exist in the cavity and lack the wax, local wax matrix thickness is on the thick side or local wax matrix thickness is on the thin side's the condition, if there is the wax condition of lacking, then mean that annotating the wax process and have to leak and spout and then can directly judge the defective products, but if the wax matrix thickness condition appears in the part, then be difficult to judge through the naked eye whether wax matrix thickness is qualified, increased the degree of difficulty of inspection.
SUMMERY OF THE UTILITY MODEL
The utility model discloses anticipate and annotate wax online membrane thickness detection device to solve the artifical rate of accuracy that exists through the mode of observing the hole inspection cavity wax injection condition of prior art and reduce, the inefficiency and the high problem of cost of labor.
In order to achieve the above object, the basic scheme of the present invention is as follows:
wax online membrane thickness detection device is annotated to cavity includes driver and image acquisition unit, and the output at the driver is connected to the image acquisition unit, and inside the driver can drive the image acquisition unit and stretch into annotating the wax cavity, the image acquisition unit can gather the inside different regional images of cavity.
Compare prior art's beneficial effect:
when the scheme is adopted, when the wax injection cavity of the workpiece is inspected, the driver automatically drives the image acquisition unit to extend into the wax injection cavity, and after the image acquisition unit enters the wax injection cavity, the image acquisition unit acquires images of different areas of the inner surface of the cavity so as to judge the condition of the cavity for wax injection according to the acquired images; when the scheme is adopted, the image acquisition unit can extend into the cavity to acquire multiple images, so that the problem of detection accuracy reduction caused by a visual blind area is avoided; this scheme can carry out many image acquisition in the short time through the image acquisition unit simultaneously, and then makes things convenient for artifical or external equipment to know the inside condition of cavity fast through the image of gathering to make things convenient for artifical or equipment to compare the image of gathering with qualified standard image, it is qualified to annotate wax with the quick judgement cavity, has improved the inspection efficiency that the wax was annotated to the cavity, makes things convenient for this detection device to annotate wax and carries out on-line measuring after wax is accomplished to annotating the wax cavity.
In addition, this detection device passes through the removal that the driver automatically drove the image acquisition unit to make the image acquisition unit detect in inserting the cavity fast, replaced the manual work through the mode that the wax effect was annotated to the observation hole inspection cavity, practiced thrift the cost of labor.
The film thickness data acquisition unit is connected with the film thickness database, and the film thickness data acquisition unit is connected with the film thickness database.
Has the advantages that: compare a plurality of images in the cavity of gathering in real time through the image processing unit to obtain the thick actual measurement data of membrane in different regions in the cavity, and then be convenient for judge fast whether qualified annotate the spraying effect of wax cavity, compare prior art, this scheme has realized the visualization of thick actual measurement data in the cavity, has avoided the big problem of the inspection degree of difficulty that manual inspection exists, and the visualization of the thick actual measurement data of membrane is convenient for follow-up the analysis of thick data of membrane simultaneously.
The control unit is connected with the image processing unit and used for receiving the film thickness actual measurement data obtained by the image processing unit, comparing the received film thickness actual measurement data with preset allowable data and sending an alarm signal when the film thickness actual measurement data exceeds the preset allowable data.
Has the advantages that: this scheme passes through the setting of the control unit, carry out automatic judgement to thick actual measurement data, the degree of automation of this detection device has been improved, and simultaneously, because of this detection device can annotate the wax and accomplish the back at the cavity and carry out real-time on-line measuring, so alarm information that sends through this detection device's the control unit is in order to remind workman's quick adjustment to annotate the wax condition, on-line monitoring has been realized, the probability of annotating wax defective work in batches has been reduced to appear, make annotate the wax effect and can feed back fast, be favorable to improving and annotate the wax qualification rate and reduce in production cost.
Furthermore, the control unit is connected with the image acquisition unit and is used for controlling the image acquisition unit to acquire images so as to improve the automation of image acquisition.
Furthermore, the control unit is connected with the driver and used for controlling the driver to drive the image acquisition unit to stretch into or draw out the wax injection cavity so as to accurately send the image acquisition unit connected to the output end of the driver into the cavity in an automatic control mode.
Furthermore, a guide joint is connected between the output end of the driver and the image acquisition unit, and the guide joint is used for driving the image acquisition unit to form different angles relative to the output end of the driver.
Has the advantages that: through the setting of direction joint for the angle of the relative output of driver of image acquisition unit can be adjusted, and then makes the shooting angle of image acquisition unit change, and is more comprehensive in order to guarantee the cavity image of gathering, further improves the accuracy that the wax detected is annotated to the cavity.
Furthermore, the control unit is connected with the guide joint, and the control unit controls the angle formed between the image acquisition unit and the output end of the driver by controlling the swing angle of the guide joint.
Has the advantages that: the angle of the image acquisition unit for driving the image acquisition unit to acquire the image is controlled by the control unit, so that the automation degree is further improved.
Further, the image acquisition unit comprises an optical lens, an illumination light source and an ultraviolet light source.
Has the advantages that: the illumination light source and the ultraviolet light provide conditions for image acquisition, so that the image quality acquired by the optical lens is higher.
Drawings
Fig. 1 is a schematic front view of an embodiment of the present invention;
fig. 2 is a schematic connection diagram of an embodiment of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises an image acquisition unit 1, a guide joint 2, a moving arm 3 and a driver 4.
Examples
The embodiment is basically as shown in the attached drawings 1 and 2, the cavity wax injection online film thickness detection device comprises a driver 4, an image acquisition unit 1, an image processing unit and a control unit, the output end of the driver 4 is fixedly connected with a movable arm 3, a guide joint 2 is connected between the movable arm 3 and the image acquisition unit 1, the guide joint 2 is used for driving the image acquisition unit 1 to form different angles relative to the movable arm 3, and the image acquisition unit 1 can stretch into the wax injection cavity and can acquire images in different areas in the cavity.
The image processing unit is connected with the image acquisition unit 1 and the control unit, and the control unit is connected with the driver 4, the image acquisition unit 1 and the guide joint 2; the control unit is used for controlling the working time of the driver 4, the driver 4 in this embodiment adopts a servo cylinder, the moving arm 3 is fixedly connected to a piston rod of the servo cylinder, and the driver 4 may also be other mechanisms or devices capable of driving the image acquisition unit 1 to extend into the wax injection cavity, such as a robot, a linear motor, a three-dimensional moving sliding table, and the like.
The image acquisition unit 1 comprises an optical lens, an illumination light source and an ultraviolet light source, wherein the illumination light source adopts an LED light source, the image acquisition unit 1, the guide joint 2 and the moving arm 3 form a controllable endoscope equivalently, the specific structure of the guide joint 2 can comprise a hinged movable section and a physical control rod for controlling the angular swing of the hinged movable section, which are disclosed in the patent with Chinese patent publication No. CN105408069B and the patent name of a borescope operation adjustment system and method, the control of the angular swing of the guide joint 2 is realized through the connection of the physical control rod and the control unit, the image acquisition unit 1 connected with the guide joint 2 is further controlled to change the angle relative to the moving arm 3, so that the image acquisition unit 1 acquires different images at different angles, and the control unit controls the image acquisition unit 1 to acquire images after the angle adjustment is completed.
The image processing unit is provided with a film thickness database, receives the real-time image collected by the image processing unit and compares the received real-time image with the standard image in the film thickness database to obtain the actual film thickness measurement data corresponding to the real-time image, and the image processing unit stores the obtained actual film thickness measurement data and sends the actual film thickness measurement data to the control unit.
The control unit compares the received film thickness measured data with preset allowable data and sends out an alarm signal when the film thickness measured data exceeds the preset allowable data, and the control unit can adopt a PLC (programmable logic controller) in the embodiment.
The specific implementation process is as follows:
after the wax is injected into the cavity, the control unit of the detection device controls the driver 4 to work, so that the driver 4 drives the moving arm 3 and the image acquisition unit 1 to extend into the wax injection cavity for image acquisition. In the image acquisition process, the control unit controls the guide joint 2 to swing so as to adjust the shooting angle of the image acquisition unit 1, further ensure that the acquired cavity image is more comprehensive, and improve the accuracy of cavity wax injection detection; and the real-time image collected every time the image is collected is received by the image processing unit, the image processing unit receives the real-time image and compares the received real-time image with the standard image in the film thickness database to obtain the actual film thickness measurement data corresponding to the real-time image, and the image processing unit stores the actual film thickness measurement data and sends the actual film thickness measurement data to the control unit. The control unit compares the received film thickness measured data with preset allowable data and sends out an alarm signal when the film thickness measured data exceeds the preset allowable data.
The detection device of this embodiment can carry out on-line measuring to the cavity of annotating the wax completion automatically, has realized the on-line monitoring of annotating the wax effect for annotate the wax effect and can feed back fast, be favorable to improving and annotate wax qualification rate and reduction in production cost.
In addition, in the testing process, through the setting of direction joint 2 and driver 4, make the cavity internal surface of complex construction can both carry out image acquisition, avoided artifical inspection to bring the vision blind area and make the problem that detects the rate of accuracy and reduce, simultaneously through image data acquisition, image processing unit's processing, can accurately obtain the thick actual measurement data of membrane in the cavity in different regions, the film thickness in the cavity has both been realized and the visualization of data is measured, can judge fast through the control unit again whether qualified the spraying effect of annotating the wax cavity, the problem that the inspection degree of difficulty is big that has avoided artifical inspection to exist.
In addition, the detection device realizes the position movement automation before image acquisition, the angle adjustment automation in the image acquisition process and the shooting automation, also realizes the processing automation and the result judgment automation after image acquisition, can replace the manual work to realize the automatic detection of the film thickness of the wax injection cavity, greatly improves the automation and the intelligent level, saves the labor cost and improves the detection efficiency.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. Wax on-line membrane thickness detection device is annotated to cavity, its characterized in that: including driver and image acquisition unit, the output at the driver is connected to the image acquisition unit, and inside the driver can drive the image acquisition unit and stretch into annotating the wax cavity, the image acquisition unit can gather the inside different regional images of cavity.
2. The cavity wax injection online film thickness detection device according to claim 1, characterized in that: the film thickness real-time detection device is characterized by further comprising an image processing unit, the image processing unit is connected with the image acquisition unit and is provided with a film thickness database, and the image processing unit receives the real-time image acquired by the image processing unit and compares the received real-time image with a standard image in the film thickness database to obtain film thickness actual measurement data corresponding to the real-time image.
3. The cavity wax injection online film thickness detection device according to claim 2, characterized in that: the control unit is connected with the image processing unit and used for receiving the film thickness measured data obtained by the image processing unit, and the control unit is used for comparing the received film thickness measured data with preset allowable data and sending an alarm signal when the film thickness measured data exceeds the preset allowable data.
4. The cavity wax injection online film thickness detection device according to claim 3, characterized in that: the control unit is connected with the image acquisition unit and is used for controlling the image acquisition unit to acquire images.
5. The cavity wax injection online film thickness detection device according to claim 3, characterized in that: the control unit is connected with the driver and used for controlling the driver to drive the image acquisition unit to stretch into or draw out of the wax injection cavity.
6. The cavity wax injection online film thickness detection device according to claim 3, characterized in that: a guide joint is connected between the output end of the driver and the image acquisition unit and used for driving the image acquisition unit to form different angles relative to the output end of the driver.
7. The cavity wax injection online film thickness detection device according to claim 6, characterized in that: the control unit is connected with the guide joint and controls the angle formed between the image acquisition unit and the output end of the driver by controlling the swing angle of the guide joint.
8. The cavity wax injection online film thickness detection device according to claim 1, characterized in that: the image acquisition unit comprises an optical lens, an illumination light source and an ultraviolet light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122942194.5U CN218270607U (en) | 2021-11-25 | 2021-11-25 | Online film thickness detection device for cavity wax injection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122942194.5U CN218270607U (en) | 2021-11-25 | 2021-11-25 | Online film thickness detection device for cavity wax injection |
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| CN218270607U true CN218270607U (en) | 2023-01-10 |
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| CN202122942194.5U Active CN218270607U (en) | 2021-11-25 | 2021-11-25 | Online film thickness detection device for cavity wax injection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087998A (en) * | 2021-11-25 | 2022-02-25 | 重庆海浦洛自动化科技有限公司 | Online film thickness detection system for cavity wax injection system |
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- 2021-11-25 CN CN202122942194.5U patent/CN218270607U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087998A (en) * | 2021-11-25 | 2022-02-25 | 重庆海浦洛自动化科技有限公司 | Online film thickness detection system for cavity wax injection system |
| CN114087998B (en) * | 2021-11-25 | 2023-11-03 | 重庆海浦洛自动化科技有限公司 | Online film thickness detection system for cavity wax injection system |
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