Case Study | 3D vision-guided bin picking of track links

Truck links are widely used in construction machinery such as excavators and bulldozers and military machinery such as tanks, and truck link links are used for crawling The connection of the belt, its existence determines whether the huge construction machinery can "walk" up, to the equipment The transfer of the movement plays a vital role.

The truck link joints are forged or cast, and their own weight is required during the crawler assembly process A large number of manual handling and loading of workpieces, which consumes a lot of manpower and has a very low production efficiency. This situation has given birth to the rigid demand of construction machinery enterprises for automatic and unmanned in this link.

Project pain points

➢ There are many kinds of truck links, and the same feeding station needs to be suitable for multi-gauge incoming method;

➢ The storage bin comes to the workpiece, the size of the storage bin is large, and there is a deviation in place;

➢ The truck link joints are stacked randomly in the storage bin, showing a disorderly state;

➢ The success rate of grabbing is high, and it is necessary to fill the production line production beat.

Solution

This solution adopts ALSONTECH AT-S1000-01A-S1 3D vision system, which has the characteristics of large field of view, high precision, fast layout and convenient maintenance. It is suitable for loading and unloading, sorting, destacking, assembly and other scenes of workpiece disorder. High degree of intelligence, strong versatility, no need for secondary development, help customers achieve flexible production lines.

Solution advantages

                                        AT-S1000-01A-S1

✪ Laser line structured light solution. Effectively resist environmental light interference, and highly reflective workpieces (brake discs, reflective gears). Typical workpieces such as pure black workpieces (black plastic parts) and translucent workpieces (car lights) are scanned, and the point cloud imaging is complete and rich in details.

✪ Big FOV. The far-end field of view can reach 3136 ×2464@3250mm, which is full of the market standard size storage bin view The field coverage requirements can also take into account the deviation in place within a certain range caused by forklift or AGV transportation.

✪ The positioning accuracy (including robot error, hand-eye calibration error, etc.) reaches ±1.5mm, which is sufficient for the picking   and grabbing requirements of the storage bin.

✪ Disordered stacking targeted solution. Due to the scattered stacking of workpieces in the workpiece box, there will be various problems such as misidentification, interference between fixture and workpiece, interference between fixture and storage bin, and leftovers, which pass through Ayer Sen's self-developed SmartVison positioning and identification system can advance the working conditions in advance Simulate the implementation of the project, design solutions, and accelerate the project Evaluation and implementation speed, combined with collision detection, multi-grasping position setting, reduce the residual workpiece rate, improve the grasping accuracy.

SmartVison simulation effect display

✪ It is recommended that when users are constructing on site, the vision camera is installed in a sliding rail type, which can be taken into account at the same time Two storage bins to achieve "grab while sweeping stroke" and improve the feeding cycle. ALSONTECH 3D visual sensor shell adopts CNC integrated molding technology, strong and durable, a well-known construction machinery company The daily gripping volume reached 8,000 pieces, and the operation was trouble-free for two consecutive years.

Customer revenue

1. Through 3D vision guidance robots to replace human work, liberate heavy and repetitive human labor, and reduce the labor cost of enterprises;

2.3D The visual system can   operate continuously for 24 hours, with an average service life of 5-8 years, which can reduce enterprise mining purchase input costs;

3. The shell of the product adopts high-strength aluminum alloy integrated CNC machining and forming technology, and the key parts are selected at home and abroad Head brand, factory strictly tested, stable performance, lifelong service, reduced Daily maintenance costs of equipment;

4. The workstation can be quickly copied and applied to other production links to improve the overall intelligence of the production workshop.