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Impact machine direct testing method and dedicated standard impact body

An impact testing machine and impact body technology, applied in impact testing, machine/structural component testing, measuring devices, etc., can solve the problems of inability to determine the accuracy of the impact testing machine, inability to directly verify the impact testing machine, etc., and achieve manufacturing costs. Low, simple and convenient operation, high test accuracy

Inactive Publication Date: 2009-07-22
CSIC NO 12 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a direct verification method for impact testing machines, which solves the problems in the prior art that the impact testing machines cannot be directly verified and the accuracy of the impact testing machines cannot be determined.

Method used

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  • Impact machine direct testing method and dedicated standard impact body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Carry out direct verification on the 0~150J energy section of an impact testing machine.

[0033] Select the high, middle and low points of 140J, 80J and 30J. First of all, empty swing impact, the purpose is to zero. Raise the pendulum, turn the pointer of the dial to the place with the maximum energy for impact, adjust the dial on the dial, so that the pointer is at zero when the impact is empty (logarithmic display dial, can automatically control zero adjustment, raise the pendulum to the maximum energy position).

[0034] A 4.00kg standard impact body is used to verify the energy of 140J. By adjusting the counterweight 2, put the 4.00kg standard impact body on the fixed base bracket, and determine the height and horizontal position of the standard impact body by adjusting the bolts on the base, so that the impact section of the standard impact body Φ10 and the impact blade can effectively impact the blade Positive. Put the pendulum to impact, when the standard im...

Embodiment 2

[0039] Carry out direct verification on the 0~300J energy section of an impact testing machine.

[0040] Select the high, middle and low points of 280J, 150J and 30J. First of all, empty swing impact, the purpose is to zero. Raise the pendulum, turn the pointer of the dial to the place of maximum energy for impact, adjust the dial on the dial, so that the pointer is at zero when the impact is empty (the logarithmic display dial can automatically control zero adjustment, raise pendulum to the maximum energy position).

[0041]Use 8.50kg standard impact body to test the energy of 280J. By adjusting the counterweight 2, put the 8.50kg standard impact body on the fixed base bracket, and determine the height and horizontal position of the standard impact body by adjusting the bolts on the base, so that the impact section of the standard impact body Φ10 and the impact blade can effectively impact the blade Positive. Put the pendulum to impact. When the standard impact body flies...

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Abstract

A direct verification method of an impact testing machine disclosed by the present invention first uses an accurate impact testing machine to determine the corresponding relationship between the mass of a standard impact body and its impact energy; at least three For the energy value, for the three energy values, choose a standard impact body corresponding to the energy value for repeated impact; the impact energy pointed by the pointer of the impact tester is compared with the impact energy corresponding to the quality standard impact body, if If the error is within 1%, it is considered that the impact testing machine is qualified, otherwise it will be debugged, if the three energy values ​​are all qualified, that is, the impact testing machine is accurate in the energy range. The method uses a standard impact body, which is in the shape of a streamlined bullet, and includes a guide body, a counterweight, and an impact head that are sequentially connected by a fixed phase. The invention realizes the direct detection of the impact testing machine, determines the accuracy of the impact testing machine, has low manufacturing cost, and is simple and convenient to operate.

Description

technical field [0001] The invention belongs to the technical field of equipment verification and measurement, and relates to a verification method of a metal material impact testing machine, and also relates to a special standard impact body of the method. Background technique [0002] At present, the annual verification of metal material impact testing machines basically adopts the indirect verification method, which mainly measures the number of free swings of the pendulum per minute, and only meets a certain number of times. Its essence only verifies the flexibility of the pendulum, and the daily inspection and calibration is only for the dial. Adjust the pointer back to zero. The direct verification of impact testing machine for metal materials has not been realized. During the impact test of the pendulum of the impact testing machine, the potential energy of the initial state minus the potential energy of the final state is generally considered to be the impact energy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/08
Inventor 郭建东
Owner CSIC NO 12 RES INST
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