A measuring device and measuring method for measuring the high-speed stamping forming force of a progressive die

Abstract

The invention discloses a measuring device and a measuring method for measuring the high-speed stamping formation force of a progressive die. Force sensors are arranged at the top parts of different convex dies corresponding to an upper die base; the lower ends of the force sensors are propped against the top parts of the convex dies; the upper ends of the force sensors are propped against set screws; the force sensors are fixed inside through holes of the upper die base through the set screws; the measuring device further comprises a charge amplifier, a data acquisition card and a computer which are connected in sequence; the transmission leads of the sensors are connected with the charge amplifier; the charge amplifier is used for converting charge signals generated from the force sensors into voltage analog signals and used for transmitting the analog signals to the data acquisition card and the computer for data processing, and furthermore change curves of force can be obtained. The difficulties that a conventional sensor is high in price, large in size, poor in real-time property and the like are solved; the method is relatively high in accuracy as the blank holder force does not need to be considered, curves of downward stamping force of a plurality of stamping times can be continuously measured, and moreover force of all working stations can be obtained at a time of stamping.

Description

technical field [0001] The invention relates to the technical field of stamping force testing, in particular to a measuring device and a measuring method for measuring the high-speed stamping forming force of a progressive die. Background technique [0002] In the stamping process, the stamping force is a relatively important parameter and an important basis for the selection of the tonnage of the press. At the same time, if the stamping force is too large or too small, it will affect the forming quality of the stamping part, so it is necessary to check the stamping force. [0003] Usually the stamping force is calculated by empirical formula, but the result obtained is the maximum value of stamping force, and the empirical formula often ignores some factors, so the empirical formula can only be used as a reference. [0004] At present, most of the stamping force tests are carried out on the blanking process, and they are all single-station. The method and device for testing...

AI Technical Summary

Problems solved by technology

Solve the technical problems of existing sensors such as high price, large size, and poor real-time performance

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