Instruments for precise measuring and an understanding of how to use measuring tools in a machining

The machining workshop uses the measuring tool, which serves both as a measuring tool and as a means to ensure the processing quality of mechanical parts

The machining workshop uses the measuring tool, which serves both as a measuring tool and as a means to ensure the processing quality of mechanical parts. Tools for measuring that are typically utilized include: height gauges, ordinary depth gauges, feeler gauges, internal and external thread gauges, R gauges, percent Table, dial indicator, gauge block gauge, roughness control sample block, altimeter, projector, three-dimensional coordinate 3D, 2D, etc., ordinary calipers, digital calipers, depth calipers, and calipers with dial indicator.

1. The use of measuring tools such as calipers

Calipers are the most widely used and convenient measuring tools, and they are the measuring tools that are used the most frequently on the processing site. Calipers are able to measure the inner diameter, outer diameter, length, width, thickness, level difference, height, and depth of objects that are processed by mechanical parts.01mm is a common unit of measurement for dimensions that require CNC drilling part high precision and a small tolerance.

Table card has a resolution of 0.02 millimeters and is used for measuring regular sizes.

Vernier caliper: resolution 0.

2. Use of a micrometer in measurement

Use clean white paper to remove dust and dirt before using the micrometer (use the micrometer to measure the contact surface and the screw surface to jam the white paper, and then pull it out naturally, repeat this process two to three times), and then twist the knob to measure the contact surface. Instead of coarse-tuning, use fine-tuning when the surface and the screw surface are in close contact with one another.

When measuring precision hardware, you will need to mobilize the knob and use the fine-tuning knob to screw in when the micrometer is in close contact with the machined part. When you hear three clicks, clicks, and clicks, the machine should be stopped, and you should read the data from the display screen or the scale. When plastic products are being measured, both the measuring contact surface and the screw make very light contact with the product. In order to cut down on measurement errors, the two surfaces that make contact should be kept clean at all times. Using a height gauge in a situation
The primary purpose of the height gauge is to measure the height, depth, flatness, verticality, concentricity, coaxiality, surface vibration, tooth vibration, concentricity, and coaxiality of various mechanical parts. No looseness. Utilization of a needle-like feeler gauge

The flatness, curvature, and straightness of mechanical parts can be accurately measured with the feeler gauge. Flatness measurement:After positioning the precision CNC part on the platform, use a feeler gauge to determine the distance that separates the part and the platform.

Measurement of straightness involves placing the precision part on the platform, rotating it for one week, and then using a feeler gauge to determine CNC milling service the distance that exists between the part and the platform.

5. The process of plug gauge (pin) application

It is appropriate for measuring the inner diameter, as well as the width of grooves and clearance in holes. If the hole diameter of the part is large and there is no needle gauge that is suitable for measuring it, the two plug gauges can be overlapped, and the plug gauge can be fixed on the magnetic V-shaped block according to the 360-degree direction. This makes it possible to prevent the plug gauge from coming loose and makes it easy to measure. Precision measuring instrument that is of the two-dimensional variety

The second component is a non-contact measuring instrument that is of a high-performance and high-precision variety. There is no mechanical action of the measuring force because the sensing element of the measuring instrument is not in direct contact with the surface of the measured part; the second element transmits the captured image through the data line to the data acquisition card of the computer by means of projection, and then the third element displays the image on the computer. It can measure various geometric elements, distances, angles, intersections, and geometric tolerances on the parts, and it can also perform CAD output for 2D outline contours. It is imaged on the computer monitor by the software.

An observation of the processing surface of the electrode:Magnification is accomplished by means of the lens that makes up the second element.

Gate detection:In the course of mold processing, there are frequently some gates that are concealed in the groove, and various testing instruments are unable to measure them. At this point, rubber paste can be attached to the glue gate, and the shape of the glue gate will be printed onto the rubber paste. Measuring device CNC machining with a precise focus on the third dimension
Can be used to measure geometric elements (in addition to the elements that can be measured by the two-dimensional element, it can also measure cylinders and cones); High precision (can reach m level); Versatility (can replace a variety of length measuring instruments); Can be used to measure geometric elements (can replace a variety of length measuring instruments); Can be used to measure geometric elements;Geometric tolerance (this includes cylindricity, flatness, line profile, surface profile, and coaxiality in addition to the geometric tolerance that can be measured by the two-dimensional element), complex profiles, so long as the three-dimensional probe is used. Because of its high precision, high flexibility, and excellent digital capabilities, it has become an important part of modern mold manufacturing and quality assurance. Measurements can be taken of its geometric size, mutual position, and surface profile anywhere it can be touched. 


Data processing can be carried out with the assistance of a computer. ways, powerful instruments, etc. It is possible to measure the coordinate value of each element as well as the outline of the irregular surface. After this, the coordinate value of each element can be exported by drawing software and used to create a three-dimensional drawing based on the measured elements. This drawing can be processed and modified quickly and accurately.3D digital model import comparison measurement:When some surface contours are neither arcs nor parabolas, but rather some irregular surfaces, a fit mold assembly must be performed in order to verify that the finished parts are consistent with the design of the mold or to locate the fit abnormality that has occurred during the process. Because the value that is measured is a point-to-point deviation value, it can be easily corrected and improved quickly and effectively. When the geometric element measurement cannot be performed, the 3D model can be imported, and the parts can be compared and measured, so that the processing error can be understood. 

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