How to Bend a Seat Frame

How will you do when you need to bend the chair in Figure 1? Generally, we will disassemble the product first. The chair in Figure 1 can be divided into two parts: red and yellow.

Figure 1  Chair Analysis.

Let's take the red part as an example. First of all, we need to know the data of our own pipe material and shape. In addition to the basic size and length data included in Figure 2, the required data can be obtained through product drawings. Corresponding data can be entered through the operation manual given by our company.

Figure 2 Pipe Fitting Data

As a company with professional technology, our company will also provide related services to customers. We will disassemble the drawings and make 3D simulation products as shown in Figure 3, and then use our software to simulate and evaluate the use. Find and solve some production problems in advance for customers.

Figure 3 3D Simulation

After receiving the machine, all basic parameters have been set. If you encounter the situation of changing products, you need to complete the mold replacement under the instruction of the work instruction. Efficiency statistics can be carried out in the final production. For example, there are 6 bends in the statistics of the pipe fittings of the chair. The hydraulic bend is generally bent at 90 degrees and the time is between 3 seconds. 3x6=18s plus the feeding time of the trolley takes a total of 15s. At about 2 years old, so according to statistics, the completion time of a piece is about 40s. According to the comparison in Table 1, if the chair pipe bending machine adopts servo bending, the pipe bending efficiency can be improved by 30%, and the accuracy will be greatly improved.

Figure 4  Comparison between hydraulic bending and servo bending

Finally, it is necessary to pay attention to whether a mandrel is required for use. The function of the mandrel for the appearance part is very important. That's it for instructions on how to bend a chair.