Design of Six-axis Robots

In our daily lives, industrial robots have developed rapidly because of their ability to adapt to the requirements of flexible automated production. Six-axis industrial robots are a part of the six-axis bending robots. The six-axis bending robot is one of the six-axis robots, so let's take a look at how it is designed.

The following is a list of contents:

• Hardware design of the six-axis robot

• Software design of the six-axis robot

• Optimized design of a six-axis robot

Hardware design of a six-axis robot

The bending cell of the six-axis bending robot consists of a six-axis robot, a CNC bending machine, a gripping device, a slider position information acquisition module, etc. The main work is to complete the gripping of the sheet and to cooperate with the CNC bending machine to complete the automatic following of the bending. When selecting the robot, we need to consider the size, repeatability, working range, weight, and working speed of the robot. The bending process is complex and requires a high degree of robot flexibility, so a six-axis vertically articulated robot is selected. The gripping device of the six-axis robot is also called the robot's hand claw. The commonly used end hand claws are clamp type, adsorption type, and bionic finger type, and the appropriate hand claw can be selected according to the demand. The hardware design is completed by selecting and matching the above bending units to the requirements.

Software design of the six-axis robot

The software design of the six-axis bending robot is divided into two parts: the bending process and the bending follower process. However, they are generally carried out together in the design process. For the six-axis robot after grasping the material, it first performs initial alignment on the alignment table and then performs automatic correction through the alignment device to achieve precise positioning. When the CNC bending machine receives the positioning signal, the slider drives the upper die tool down to the clamping point position from the upper dead point, the bending robot receives the running signal and starts the bending following program to cooperate with the CNC bending machine to complete automatic bending. After the bending is completed, the bending machine slider drives the upper die up to the safe position, and the robot realizes the automatic material and palletizing to complete the bending process. The software design is the alignment device, as well as the parameters of the downfeed and palletizing process, which also need to be customized according to specific needs. Generally, these parameters will be input into the six-axis robot in advance to facilitate the subsequent operation in the actual production process.

Optimized design of six-axis robots

To improve the bending accuracy and quality consistency in sheet metal processing, a six-axis robot bending cell is constructed, and a multi-suction cup robot and an auto-righting module that can be adjusted according to the workpiece size are designed. To ensure the following accuracy of the six-axis robot to the CNC bending machine in the bending process, a scale signal acquisition module is designed to collect the position information of the bending machine slider in real-time, and the signal of the scale is copied into two signals identical to the original signal by this module and transmitted to the bending machine system and the robot system respectively, to improve the following accuracy of the six-axis robot to the CNC bending machine. With this optimized design, the efficiency and quality of the six-axis bending robot have been improved, making more companies and manufacturers more willing to choose the six-axis robot.

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