Wanhao grating installation method

Wanhao grating ruler is mainly used for milling machine, boring machine, machining center, lathe, grinding machine, wire cutting, spark and machine tools installation digital transformation, but also can be used for all kinds of instruments measuring mechanism, displacement measurement, such as optical image measuring instrument. Optical projector, microscope, two dimensional imaging instrument etc..

The following installation method Wanhao grating:

Selection of base surface for 1 and grating ruler

When the grating ruler is installed, the grating ruler can not be directly installed on the rough and uneven machine tool, and it can not be installed on the machine body of the bottom paint. The grating main ruler and the reading head are respectively installed on the two parts of the relative motion of the machine tool. With the main ruler mounting surface and the track gauge to check the machine table in the direction of parallelism. A dial indicator is fixed on the bed, moving table, required to achieve parallelism within 0.1mm/1000mm. If this requirement is not reached, a gratings base is designed and machined. The base needs to be done: 1 should be added to the base that is equal to the length of the grating ruler (the best base is about 50mm of the grating ruler). The base is machined by milling and grinding, and the plane parallelism is less than 0.1mm/1000mm. In addition, a high reading head base, such as the base of a ruler, is also required. The total error of the base of the reading head and the base of the ruler shall not be more than + 0.2mm. When installing, adjust the position of the reading head to achieve the parallelism between the reading head and the grating ruler and the ruler body is about 0.1mm, and the distance between the reading head and the grating ruler and the ruler body is about 1~1.5mm.

2, the installation of the main ruler of the grating ruler

The main scale grating with M4 screw on the working table of the machine is installed on the surface, but do not tighten, the dial indicator is fixed on the bed, moving table (moving the main ruler and table at the same time). With a dial indicator measuring main ruler plane and the motion direction of the parallel machine tool, the adjustment of the main ruler M4 screw position, the main scale within the parallelism of 0.1mm/1000mm to meet M2, completely tighten the screws. When installing the main ruler of the grating, we should pay attention to the following three points:

(1) when installing a grating ruler, if the grating above 1.5M is installed, it can't install two ends as a bridge type. It still needs support in the main ruler.

(2) when it is installed under the base condition, it is better to use a card to hold the middle point of the body (or a few points).

(3) when the card is not installed, it is best to stick the grating ruler with glass glue to make the base ruler and the main ruler fixed.

3, the installation of the reading head of the grating ruler

In the installation of reading head, first of all, we should ensure the base of the reading head to meet the installation requirements, and then reinstall the reading head, the installation method is similar to the main ruler. The reading head is adjusted to ensure the parallelism of the reading head and the main ruler of the grating within 0.1mm, and the gap between the reading head and the main ruler is controlled within the 1~1.5mm.

4, grating ruler limit device

After installing the grating ruler, we must install the limiting device on the guide rail of the machine tool, so as to prevent the reading head from colliding to the two ends of the main ruler when the product is moving, so as to damage the grating ruler. In addition, when the user is choosing a grating line displacement sensor, we should choose a grating ruler beyond the machining dimension of 100mm, so as to keep the allowance.

5. The inspection of the end of the grating ruler

After the grating ruler is installed, the digital display table can be connected and the worktable is moved to observe whether the count table is normal. Specific methods: select a reference position on the machine tool, move the work point back and forth to the selected position. The readings of the digital display should be the same (or return to zero). You can also use the dial gauge (or dial indicator), and at the same time the digital display meter dial gauge to zero (or initial data memory), return back to the initial position after repeated observation, digital display table and the data is consistent with the dial gauge.