Delta Robot Arm Pick and Place Parallel Manipulator

With the development of science and technology, the application range of robots has been expanding. Many factories have adopted robots to replace the original manual labor. Parallel manipulators are favored by many professionals. Parallel manipulators can effectively improve the production efficiency of industrial automation, especially in the process of movement of each joint of power robots, the force received is uniform. In the mechanical industry, the ore industry, the logistics industry, and other work operations, the parallel manipulator can find the specific position of the space where the end effector is located through the variables of each joint angle, and multi-disciplinary integration and mutual penetration.

Parallel manipulators generally include a frame, a single chip microcomputer, a base plate, multiple sliding mechanisms, multiple parallel manipulators, and mechanical grippers to form a triangular frame structure. The parallel manipulator includes a sliding rail, a trapezoidal screw, a pulley, and a stepping motor. A parallel manipulator is set at both ends of the pulley to connect with the mechanical gripper.

The parallel manipulator is suitable for automatically grasping the control system and the manipulator grasping control subsystem of the parallel manipulator at high speed for small-sized and light-weight articles, and transporting some small parts at high speed. It can automatically identify parts for automatic sorting and transportation. The parallel manipulator has many functions, strong flexibility, high motion accuracy, excellent dynamic performance, and high stability.

Parallel manipulators in electronics, light industry, food, medical, and other industries often have the characteristics of small size, lightweight and large number. When used, three active arms are controlled by servo motors to coordinate action. When the end of the manipulator reaches the position of the manipulator structure, the parallel manipulator can realize three degrees of freedom. The principle of the parallel manipulator is that the drive motors are all installed on each joint of the manipulator, and the motors drive the rotation of each joint of the manipulator to realize various actions of the manipulator. So as to realize the quantitative demand for sorting automation on the production line.

In the food industry, robots are popular mainly because of their flexibility. It can meet various requirements of consumers. Robots can better adapt to different sizes and shapes of packages than traditional packaging equipment. Most of the packaging work in food production, especially the arrangement and assembly of more complex packaging items, is basically manual, so it is difficult to ensure the unity and stability of packaging, and may also cause pollution to packaging products. The application of robots can effectively avoid these problems and truly realize intelligent control. The industrial robot can realize the following functions in the food packaging line:

1. Picking

The picking operation is carried out by robots. If there are many varieties and different shapes, the robots need to be equipped with an image recognition system and a multi-functional manipulator. Each time the robots reach an article tray, they can use the corresponding manipulator to grasp it according to the shape of the article "seen" by the image recognition system, and then put it on the matching tray.

At present, the application of grabbing and sorting robots in the food and beverage industry is gradually increasing, mainly focusing on the latter stage of packaging. For example, small particles of chocolate, candy or boxed or bagged food and beverage are quickly grabbed and placed on the designated sorting conveyor belt or packaging box. This robot is not only as dexterous as human hands, but also has sufficient judgment ability.

2. Packaging

In the food and beverage industry, efficiency is generally the first requirement for sorting, and packaging is also the most difficult factor. It is necessary to accurately place scattered items in packaging bags or boxes, which not only tests the flexibility and accuracy of robots, but also requires robots to have visual and computable functions.

There are generally many forms of product packaging, and the packaging process is complex according to the shape, material, weight and cleanliness requirements of the objects. At present, there are mainly the following robots in the packaging process:

Bagging robot: the bagging robot is a fixed rotary machine with a 360 degree rotating body. The robot can transport, open, measure, fill, sew and stack the bags. This is a packaging robot with high intelligence.

Encasement robot: similar to the bagging robot, the encasement of general metal and glass packaging containers is completed by rigid encasement robot. There are two types of gripping for packing (articles): mechanical and air suction. It can move as a whole. Grab or adsorb the package, and then send it to the packing box or tray at the designated position. It has the function of direction and position automatic adjustment, and can realize no unloading and direction adjustment without boxes (pallets). This kind of robot is a kind of mature robot, which is widely used. Such as beverages, beer.

3. Stacking

In recent years, robot palletizing has become a development trend to replace traditional mechanical palletizing. Palletizing robot is a kind of equipment that simulates human operation, automatic operation, repeated programming and completes specified operations in three-dimensional space. It includes a picking and placing system, which can pick up one or more face bags from one or more places and then place them on a preset pallet. It has strong operational flexibility and is generally located at the back end of the production line. It is used to process materials on the production line instead of manual handling and stacking, which not only greatly improves production efficiency and output, but also saves costs.

4. Handling

Handling is transporting the packaged products to the designated location, which is usually a certain distance from the packaging location. Therefore, mobile handling robots become a good helper for transportation.