Those who are responsible for creating all the technology for the entire process of a visual inspection have a complicated job, they must incorporate innovation at every moment.

Both machine vision camera manufacturers and machine vision systems manufacturers are responsible for creating the technology and the elements necessary for visual inspections to be successful, but this is a complicated task because incorporating various technologies into the entire process must be done quite careful way and always oriented to excellence the result.

visual inspection machine

The cameras are the elements that are responsible for capturing the physical characteristics of the material being inspected, so they play a fundamental role in the entire process.

When machine vision systems manufacturers decide to make a protocol for each of their customers, they gather a team that also includes machine vision camera manufacturers, which are responsible for creating one or more cameras with the best features so that these machines have a better resolution when capturing an image that will undergo a review, these in turn must connect the cameras to a central system that will have previously chosen machine vision systems manufacturers and this is how the data will be processed to yield certain results.

Different cameras at different angles capture all parts of the piece.

Usually this process involves a series of cameras placed at different angles, so that they can completely capture the material to be evaluated and all its characteristics and dimensions, in this way it is possible to make comparisons between the original piece and all that pass through visual inspection

Initially each camera had an individual image processor.

Each of these cameras usually has a processor, which will be responsible for transmitting the data to the central part of the machine, so each of the images emitted by each camera is processed individually until it is time to show the result, however There are processes that are faster than this and the machine vision camera manufacturers have been taking them into account today, so they can be successfully incorporated into all their cameras.

Integrated vision systems are one of the best ways to optimize the visual inspection experience.

Integrated vision systems are undoubtedly a quite effective solution to make a visual inspection easier and easier, not only to perform, but also to interpret by the central system that is involved in all processes. When an integrated vision system is incorporated into the visual inspection, costs would be reduced with respect to the processors and the individual memories that the cameras of the visual inspection system have, which thanks to this technology invites the cameras to work as a and get to capture and process the images using a single device.

This is not the only advantage that integrated vision systems have, since most of them also have high-definition sensors which allow the entire process of observation and data processing to be of a very high range, guaranteeing a better result.

For more about machine vision systems manufacturers,you can pay a visit to sipotek at https://www.topvision.net

About Shenzhen Sipotek Technology Co., Ltd

Started in 2002, Sipotek Technology is located in Shenzhen in China. The company designs and manufactures visual inspection systems with its avant-garde R&D department and a great experience in artificial vision technologies. Sipotek is a professional machine vision inspection system manufacturer from china.The Sipotek Technology staff supports customers 360 degrees automatd optical inspection(AOI), from listening to their requests to the development of ambitious machines for quality control.

For Inquiries:

Contact Person: James Yuan

Company: Shenzhen Sipotek Technology Co., Ltd

Tel: +86 18666216027

Email: info@sipotek.net

Website: https://www.topvision.net

Heads-up Displays (HUDs) for the latest generation jet fighters encase advanced optical components within precision machined aluminium castings. At a leading UK manufacturer, these specialised units are designed, manufactured, assembled and calibrated by highly skilled technicians. Due to the number of operations required in this process, final inspection is mandatory to ensure that all the assembly tasks have been completed before the unit is shipped to the customer for integration into the aircraft.
To automate this final inspection process, Sipotek has developed a vision-based system that eliminates any human error associated with this task (Figure 1). In developing the system, a major goal was to provide a standardized inspection that provides objective results with minimal operator input.

Vision inspection
Vision inspection tasks were split into two categories: simple surface level inspections such as the presence of various screws, bolts or covers and more intricate inspections that require precise lighting and camera setups to determine pass/fail criteria.

The challenge posed by the simpler inspections was not the difficulty of assessing the image against a pass/fail criterion, but the number and variety of inspections that needed to be performed across the six surfaces of the HUD unit. This was achieved by splitting the inspection process into two parts. The first part required the operator to place the HUD upside down into a nest to allow three of the faces to be inspected.

To perform inspection of the HUD, the system incorporates a gantry of cameras mounted on a linear drive that move in the z axis (Figure 2).  The laser projection unit is mounted in-line with the camera to allow a single laser line to be projected into the machined holes on the HUD. In addition white LED lighting arrays were mounted above the camera to provide overall diffused lighting for surface inspection checks. The nest was mounted on two linear drives allowing it to travel in both the x and y axes. Using this setup, any point on the three inspection faces could be presented to a camera and light module for inspection.

machine vision system manufacturers | vision inspection system manufacturers | top machine vision companies

coupon code: freeshipping on any order from topvision.net

Once the system has indexed around all the inspection positions on the three presented sides, the nest is returned to the front of the machine, at which point an operator is alerted to position the HUD in an upright position. After the quick release tooling is changed and the unit reloaded, the machine continues to inspect the remaining positions before returning the HUD to the load/unload position.

The machine control and human machine interface (HMI) required the user to adjust positions, configure new inspection areas and new nests for future variants without the user requiring access to the machine code. This resulted in a layout capable of displaying the key data in a clear format during inspection and providing a large number of diagnostic and configuration tools and pages accessible from the various secure menus.

Complex tasks
More complex inspections required on the HUD primarily comprised of verifying that holes had helically wound, precision formed coils of stainless steel (known as helicoils) inserted into them. To add complexity, the holes also had a shoulder part down the bore before the helicoil so differentiation was required between the shoulder and helicoil surface.
To ensure the helicoils were in-place, vision inspection is performed using a combination of an IVS LED area light and an angled laser setup (660nm 20mW modulation laser projector) to illuminate the surfaces perpendicular to the axis of the hole. Using the area light, an initial image was first captured by an IVS gigabit Ethernet camera and thresholding used to locate the hole in the image. By computing the geometry of this thresholded image, small edge deviations created by any debris or swarf residing around the perimeter of the center of the hole are ignored by the vision system.

A second image, captured as the laser line is projected across the hole, is then used to search within a toroid shaped area for the presence of reflections from the helicoil surface. By using the position determined from the first image, this check can accurately account for any movement of the hole relative to the center of the image, potentially caused by the accuracy of the linear drives or variations in the HUD units and load positions on the nest.
The inspection requirement at the individual positions, whether it was to check for the presence of a bolt, cover plate or helicoil, generally required a very small field of view. This was achieved using IVS 1296 x 966 pixel CCD GigE cameras with a fixed field of view and focal distance. This approach dictated a fixed distance between cameras and part and therefore required the systems programmable logic controller (PLC) to precisely position the x, y and z axes to ensure the object of interest was located in the centre of the field of view and was in focus.

The inspection of the HUD units also required a small number of imaging functions to be performed on larger objects. These included verifying that the correct labels were applied and capture an overview image of the unit that is archived for future reference. This requirement was met using a pan-tilt-zoom (PTZ) camera capable of capturing images ranging in size from an overview of the full 600mm long unit down to a 70mm wide area of interest (Figure 3). The IVS PTZ camera, along with the GigE cameras, structured lighting and precision laser lines were all controlled by IVS software, a PC based machine vision application.

Final results
Such a complex array of inspection positions and requirements presented a further challenge in terms of displaying the final results to the operator in a usable format. Individual results for each position were collated into a report format that is automatically printed once the inspection has completed. The system also presents the data on a monitor in graphical form for the operator to visualize which tests have passed and which have failed. An overview screen shows the operator the results of groups of related types of checks for all faces of the HUD (Figure 4).  If further detail is required, the operator can access additional screens of each individual face with every inspection result relating to that face displayed in a colour coded layout.

Due to the immense value of the HUD units and the fact that they are made to order, only two units were available to configure the machine. Following the installation, IVS and the manufacturer worked together to refine the vision program as production parts were run through the machine to take account of the natural variation in factors such as material finishes and colors. This was performed by remotely accessing the vision system by IVS engineers.
The HUD inspection machine has automated a long list of visual checks while allowing the operator to complete other tasks while the inspection is running. The elimination of human error and subjectivity has led to a higher quality of parts leaving the factory and the ability to keep a visual archive of every product produced.

As a high-tech enterprise engaged in the research, development and production of machine vision systems for more than 10 years, Sipotek has rich technical experience in visual inspection system. Today we shares several typical cases for theappearance defects inspection.

It can identify online defects as warping Angle, missing Angle, surface collapse point, crack, scratch, etc.

• The system can automatically set the size parameters of magnetic material.
• Measure the overall size of magnetic material online in real time and display the effective size;
• Ability to automatically sort good and bad products;
• Defect Statistics

This equipment is suitable for the surface defect detection of ndfeb rough billet. After modification, the system can detect magnetic materials of different shapes and sizes.

• Filter surface defect inspection system
• It can complete single detection of both sides of the lens.
• The test items include four common surface defects, such as edge, spot and dust, scratch and mark.
• Different product quality testing schemes can be customized to meet the needs of customers at different application levels;
• Support online automatic identification of filter surface quality defects, real-time storage of detection results.

vision inspection machine | vision inspection system | machine vision system manufacturers 

coupon code: freeshipping on any order from sipotek.net 

This device is applicable to the surface defect detection of infrared cut-off filter, which can be customized according to different requirements of customers. After modification, the system can be applied to the detection of other optical lenses and mobile phone camera modules.

• Gear surface defect detection system
• It can detect the appearance defect of bevel gear tooth surface in 360 degrees
• It can automatically identify several defect characteristics such as knock and crush, crack, scratch, depression and bulge.
• It can measure the number of bevel gears tooth width and thickness.

This equipment is suitable for the surface defect detection and dimension measurement of bevel gear.

About Shenzhen Sipotek Technology Co., Ltd

Started in 2002, Sipotek Technology is located in Shenzhen in China. The company designs and manufactures visual inspection systems with its avant-garde R&D department and a great experience in artificial vision technologies. Sipotek is a professional machine vision inspection system manufacturer from china.The Sipotek Technology staff supports customers 360 degrees automatd optical inspection(AOI), from listening to their requests to the development of ambitious machines for quality control.

For Media Inquiries:

Contact Person: James Yuan

Company: Shenzhen Sipotek Technology Co., Ltd

Tel: 86-755-36994123

Email: info@sipotek.net

Website: https://www.sipotek.net/vision-solutions/