CN214792989U - Non-contact precision measurement system based on vision - Google Patents

Abstract

The utility model discloses a non-contact precision measurement system based on vision, including control cabinet and detecting head component, the control cabinet passing signal and detecting head component connection, the detecting head component includes PC mini, PC mini two-way electricity respectively is connected with CCD + LENS, laser instrument and LED light, CCD + LENS, laser instrument and LED light electricity are connected with lithium ion battery, lithium ion battery's input electricity is connected with the charger. The utility model discloses a cooperation that sets up control cabinet, detecting head component, PC mini, CCD + LENS, the laser instrument, the LED light, lithium ion battery, the charger, wireless LAN one and wireless LAN two is used, the measurement mode of having solved current part Renilshao gauge head is not convenient for the user to use, the lower problem of measurement efficiency and measurement accuracy, this non-contact precision measurement system based on vision possesses the person of facilitating the use and uses, the advantage that measurement efficiency is high and measurement accuracy is high, be worth promoting.

Description

Non-contact precision measurement system based on vision

Technical Field

The utility model relates to a part precision measurement technical field specifically is a non-contact precision measurement system based on vision.

Background

When the sizes of blank holes of a movable arm and a bucket rod of an excavator are measured, a Renyshao measuring head is generally adopted for workpiece measurement, the Renyshao measuring head is in a contact type, so that the measurement efficiency of parts is low, the CT of a product is about 45min, the consumed time for measuring one product is about 12min, the total working hour is 26%, the processing precision of the product is 1mm, the detection precision is 0.1mm, the product is moved after being fixed, the inner hole with the maximum aperture is 155mm, the outer hole is 250mm, and therefore the measurement precision of the product is low, and inconvenience is brought to the use of a user.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a non-contact precision measurement system based on vision possesses the person of facilitating the use, and the measuring method who has solved current part Renyshao gauge head uses not the person of facilitating the use, and measuring efficiency is lower and measuring accuracy is lower advantage high and measuring accuracy is high.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a non-contact precision measurement system based on vision, includes control cabinet and detecting head component, the control cabinet passes through signal and detecting head component connection, the detecting head component includes PC mini, PC mini two-way electricity respectively is connected with CCD + LENS, laser instrument and LED light, CCD + LENS, laser instrument and LED light electricity are connected with lithium ion battery, lithium ion battery's input electricity is connected with the charger.

Preferably, the console comprises a numerical control system, and the numerical control system is electrically connected with a first wireless LAN in a bidirectional mode.

Preferably, the PC mini comprises a wireless LAN II.

Preferably, the CCD + LENS comprises an industrial camera and a red ring light source.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a cooperation that sets up control cabinet, detecting head component, PC mini, CCD + LENS, the laser instrument, the LED light, lithium ion battery, the charger, wireless LAN one and wireless LAN two is used, the measurement mode of having solved current part Renilshao gauge head is not convenient for the user to use, the lower problem of measurement efficiency and measurement accuracy, this non-contact precision measurement system based on vision possesses the person of facilitating the use and uses, the advantage that measurement efficiency is high and measurement accuracy is high, be worth promoting.

2. The utility model adopts 500 ten thousand pixels industrial camera, 4mm lens and red annular light to get picture, and adopts brand SICK for laser ranging; the 500 ten thousand pixel CCD takes a long picture of the shape of the hole, and the central position of the hole is measured after the image processing by software.

And (3) photographing a visual field: 200-250mm working distance: 145 mm;

measuring the center coordinates of the holes;

the symmetry of two end faces of the laser measurement workpiece meets the requirement;

the 10000 milliampere lithium battery is adopted for power supply, the camera is 12V, the light source and the controller are 24V, wireless wifi transmission is carried out, the laser instrument measures 2 points of the hole end face, and the Z-axis direction position and the inclination angle of the hole end face can be measured;

the system automatically triggers a camera to work, CCD photographing and laser ranging are carried out simultaneously, and an image taking controller with the beat of about 500ms transmits an obtained image to a console in a wireless mode;

after the control console receives the pictures, software analyzes and measures the center coordinates of the blank hole, calculates the size between the holes according to the measured coordinates, and can transmit the measured coordinates to the machine tool;

the software processing time should be less than 1000 ms.

Measuring the center coordinates of the holes in a CCD photographing mode by adopting non-contact measurement;

measuring the symmetry of two end faces of the workpiece by adopting laser;

by using a wireless transmission mode, the CCD and the laser are used for obtaining images and then transmitting the images to a control center for analysis;

and (3) photographing a visual field: 200-250mm working distance: 145 mm;

and (3) demonstrating a first scheme: analyzing by adopting a CCD camera, a light source, a lens and laser measuring position height mode;

and 2, demonstrating a second scheme: the position centrality and height mode analysis of the hole is measured in a structured light mode;

measuring CT for less than 5 min;

in the measurement of the positions of the holes such as the Boom workpiece of the engineering machine, when the measurement result of the center position of the hole deviates from the specified size, the compensation function within the allowance range of the machining allowance is automatically carried out on the center position of the hole to be measured, so that the intervention operation of operators (such as the correction operation of the hole machining position) can be avoided, and the yield and the production efficiency of products are improved.

Drawings

Fig. 1 is a schematic diagram of the system of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides a parts such as control cabinet, detecting head component, PC mini, CCD + LENS, laser instrument, LED light, lithium ion battery, charger, wireless LAN one and wireless LAN are the general standard component or the part that technical staff in the field knows, and its structure and principle all can learn through the technical manual or learn through conventional experimental method for technical staff in the field.

Referring to fig. 1, a non-contact precision measurement system based on vision comprises a console and a probe element, wherein the console is connected with the probe element through signals, the probe element comprises a PC mini, the PC mini is respectively and electrically connected with a CCD + LENS, a laser instrument and an LED illuminating lamp in a bidirectional manner, the CCD + LENS, the laser instrument and the LED illuminating lamp are electrically connected with a lithium ion battery, and the input end of the lithium ion battery is electrically connected with a charger;

the console comprises a numerical control system, and the numerical control system is bidirectionally and electrically connected with a first wireless LAN;

the PC mini comprises a second wireless LAN;

the CCD + LENS comprises an industrial camera and a red annular light source;

when the measuring head is used, the measuring head element starts to measure from the position with the distance of about 145mm from the end face of the hole and carries out the measurement according to the following flow;

the system takes the circle center of the measuring hole as the center,

positioning the X-axis and the Y-axis, (the Z-axis being the origin);

locating the Z axis at a distance of about 145mm from the end face of the hole to the measuring head;

triggering a 500-ten-thousand-pixel CCD to take pictures and shoot the shapes of the holes in the system;

after the Y axis moves, the hole end surface on the lower side is measured by a laser displacement meter;

after the Y-axis moves, measuring the hole end face on the upper side by using a laser displacement meter;

and acquiring the image and the distance data and then wirelessly transmitting the image and the distance data to a console.

In summary, the following steps: this non-contact precision measurement system based on vision through the cooperation that sets up control cabinet, detecting head component, PC mini, CCD + LENS, laser instrument, LED light, lithium ion battery, charger, wireless LAN one and wireless LAN two uses, has solved the measuring mode of the present some Renyshao gauge head and has not been convenient for the user to use, and measuring efficiency is lower and measurement accuracy is lower problem.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. A vision-based non-contact precision measurement system comprising a console and a probe head member, characterized in that: the control cabinet passes through the signal and is connected with the detecting head component, the detecting head component includes PC mini, PC mini two-way electricity respectively is connected with CCD + LENS, laser instrument and LED light, CCD + LENS, laser instrument and LED light electricity are connected with lithium ion battery, lithium ion battery's input electricity is connected with the charger.

2. A vision-based non-contact precision measurement system as claimed in claim 1, wherein: the console comprises a numerical control system, and the numerical control system is bidirectionally and electrically connected with a first wireless LAN.

3. A vision-based non-contact precision measurement system as claimed in claim 1, wherein: the PC mini comprises a wireless LAN II.

4. A vision-based non-contact precision measurement system as claimed in claim 1, wherein: the CCD + LENS includes an industrial camera and a red ring light source.

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