Jinan hand board processing has high precision, can accurately control product quality, and high production efficiency. It is now a common hand board processing method used by many large hand board factories. However, there will still be differences in the processing accuracy of the prototype, and the reasons can be analyzed from the following aspects.
1. Dimensional accuracy
It refers to the conformity between the actual size of the part after machining and the tolerance zone center of the part size. Dimensional accuracy is controlled by dimensional tolerance. The dimensional tolerance is the allowable variation of the part size in machining. When the basic dimensions are the same, the smaller the dimensional tolerance, the higher the dimensional accuracy.
2. Shape accuracy
It refers to the degree to which the actual geometric shape of the machined part surface conforms to the ideal geometric shape. The evaluation items of shape accuracy include straightness, flatness, roundness, cylindricity, line profile, etc. The shape accuracy is controlled by the shape tolerance. Except for the 13 accuracy levels of roundness and cylindricity, all the shape tolerances are equally divided into 12 accuracy levels. Level 1 high, level 12 low.
3. Position accuracy
It refers to the actual position accuracy difference between the relevant surfaces of the parts after machining. The items for evaluating the position accuracy include parallelism, perpendicularity, inclination, coaxiality, symmetry, position, circular runout and total runout. The position accuracy is controlled by the position tolerance, and the position tolerance of each project is also divided into 12 accuracy levels.
4. Cutter: The cutter used by the machining machine is generally tungsten steel cutter. After using this cutter for several times, the cutter will be worn, so there are errors in the cutter.
5. Manual tool setting: If there is a tool setting instrument, there will be no problem in tool setting. However, in order to save costs, many small handicraft factories will choose to have no tool setting instrument when selecting machines, and only set tools manually, so there is a tolerance in terms of personnel. In order to ensure the accuracy of the prototype, the tool setting instrument is installed on the prototype processing equipment, which can not only accurately set the tool, but also greatly improve the working efficiency.
These are the five aspects that affect the processing accuracy of the hand board. The effects of all aspects will lead to differences in the accuracy of the back hand board model. Therefore, we should start from the processing accuracy of each aspect to make a hand board model that can achieve good results. More relevant content will come to our website http://www.jrjmockup.com Consult and understand!