Precautions for the use of a 90 degree corner clamp:

Structure and use of 90 degree corner clamp:

90 degree corner clamp is a commonly used measuring tool in inspection and marking work, and generally has integral, combined and precision cylindrical structures.

Accuracy grades of 90° squares: cylindrical squares: grades 00 and 0; cast iron squares: grades 0 and 1; knife-edge squares: grades 00 and 0; wide seat squares: grades 1 and 2; rectangular squares: grades 0 and level 1.

The 90° angle ruler is used to test the verticality of the workpiece or to verify the verticality of the relative position of the instrument, the longitudinal and transverse guides of the machine tool and the workpiece.

Precautions for the use of a 90 degree corner clamp:

1, 00 and 0 90 degree corner clamp are generally used to test precision measuring tools;

Class 1 90 degree corner clamp is used to inspect precision workpieces;

Class 2 90 degree corner clamp is used to inspect general workpieces.

2. The left and right sides of the long side of the 90 degree corner clamp and the upper and lower sides of the short side are all working surfaces. The left side of the long side and the underside of the short side form 90 degrees (external angle) to each other. The right side of the long side and the upper side of the short side form a 90° angle (inner angle) with each other.

3. Before use, check whether the working surfaces and edges are bruised. Clean the working surface of the square ruler and the working surface to be inspected.

4. When using, place a 90° square on the working surface of the workpiece to be tested, and use the optical gap method to identify whether the angle of the workpiece to be measured is correct. When inspecting the outer angle of the workpiece, the inner edge of the square must be in contact with the workpiece to be measured. , When checking the inner angle, the outer edge of the square is in contact with the workpiece to be measured.

5. When measuring, you should pay attention to the placement of the square, and it should not be skewed.

6. When using and placing the larger 90° angle ruler on the working side, special attention should be paid to preventing bending deformation.

7. In order to obtain accurate measurement results, the 90° angle ruler can be turned 180° and measured again, and the arithmetic mean of the second degree is taken as the measurement result, so that the deviation of the angle ruler itself can be eliminated.

Parameter:

Name: 90 degree corner clamp

MATL:AL

Surface treatment:Anodizing Treatment

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