Machine tool test bench, also known as square box worktable, is used to inspect the parallelism and perpendicularity of boring machine components and support workpieces during marking. It is generally a cube or rectangular prism with the same side length. The machine tool test box is manufactured according to JB/T3411.56-99 standard, with material HT200. Our factory's machine tool test pad box castings are made of HT200-HT250 and undergo secondary tempering treatment to ensure the stability and hardness of the castings.

1. Purpose of machine tool test box: The boring machine square box is mainly used for checking and marking the parallelism, perpendicularity, etc. of components. The boring machine square box is a concrete six working face cavity cube made of cast iron, with a V-shaped groove on one of the working faces. The environmental conditions for square box calibration are normal temperature and humidity.

2. Machine tool test pad box http://www.btjxjt.com Requirement: The working surfaces of the square box of the boring machine must not have rust, scratches, cracks, dents, or other defects that affect the metrological performance. Non working surfaces should be sandblasted and painted, with chamfered edges. There should be signs on the inner wall of the square box, indicating specifications, dimensions, grade, factory number, and manufacturer name.

3. Precision of machine tool test pad box: In addition to checking the flatness, the contact spot of the scraping square box should also be checked using the coloring method. The number of spots in any square with a side length of 25mm is: no less than 25 points for level 1 and level 2; Level 3 should not be less than 20 points.

Characteristics of cast iron cushion box: When drawing large and heavy workpieces, there is no need to flip the workpiece. First, adjust the position of the right angle box, and then place the bottom of the marking plate against the vertical surface of the right angle box to draw the vertical line on the workpiece; It can also be used to raise the needle plate and height gauge; You can also use a C-shaped clamp to tighten the workpiece onto the right angle box and draw lines.

The machine tool test box must be used or stored in a normal temperature and humidity environment. When using, wipe the workpiece and cast iron cushion box clean, pay attention to cleanliness, and maintain the accuracy of the cast iron cushion box.