Problems in the design of fixture parts

The design of fixture parts is usually simple in structure, which makes people feel that the structure is not very complex. The more we find that the hydraulic fixture is widely used, which greatly simplifies the original mechanical structure. However, if we do not make a detailed study in the design process, there will inevitably be unnecessary difficulties:

1 blank allowance of the workpiece to be processed. The size of forming blank is too large, and interference occurs. So we must plan the rough drawing before design. Leave plenty of space.

2. Smooth chip removal of fixture accessories. Due to the limited machining space of the machine tool, the fixture is often designed in a compact space. At this time, it is often ignored that the iron chips accumulated in the dead corner of the fixture during the machining process, including the unsmooth outflow of chip liquid, which brings many difficulties to the later machining. Therefore, at the beginning of essence, we should study the problems in the process of machining. After all, the fixture will increase efficiency and be easy to operate.

3. Overall opening of fixture. Ignoring the opening, the manipulator is difficult to install, time-consuming and laborious, and the design is taboo.

4. Basic comment principle of fixture accessory design. Each set of fixture has to go through many times of clamping and loosening, so it may reach the user’s requirements at the beginning, but the fixture should have its accuracy maintenance, so do not design some equipment that is against the truth. Even if you are lucky now, it will not last forever. A good design should be tempered by time.

5. Interchangeability of positioning elements. It is important to wear the positioning elements, so it is necessary to study the quick and simple replacement. Do not design as larger parts.

The accumulation of fixture design experience is very important. Occasionally design is one thing, and in essence use is another. So good design is a process of accumulation and summary. The above content is introduced here first, you are interested, please pay more attention to us, and will bring you different knowledge at any time.