SU1439475A1 - Apparatus for quality control of glued joints - Google Patents

Abstract

The invention relates to a testing technique, is intended to control the quality of adhesive joints and allows to improve the accuracy of quality control of joints by reducing the number of measurements. The processor 11 colors the enabling input of interface 9 and transmits through it numerical contacts from the ROM 12 to the DAC 5, which change the DAC 5 transfer ratio and the digital signal at the ADC output 8. As soon as the variable reaches its maximum, RAM 13 will occur sanoMSiHsm-ie, the numeric code of the digital input of the DAC 5. After moving the converter 3 to a new section, you will see. receive numerical codes of digital input DSL 5 which are compared with the codes of the previous measurements. The distribution of mechanical forces appears on linear inlators of registration unit 15. corresponding to the quality of the compound. 1 il. .WITH

Description

The invention relates to a testing technique, namely, devices for quality control of adhesive joints.

The aim of the invention is to improve the accuracy of quality control of adhesive joints by reducing the number of measurements.

The drawing shows a block diagram. . the proposed device.

The device contains a loader, in the form of a solenoid (not shown) and one-vibrator 1 electrically connected with it, sequentially connected to one-vibrator 1 using a start button 2, a load converter 3 and an amplifier, a digital analog input (5) connected to the output of amplifier 4, sequentially connected to LWI 5 second amplifier 6, detector 7-, analog-to-digital converter (ADC) 8 cI interface unit 9, the first group of inputs | of which is connected to output A1-W 8, first group of codes - with digital in The DAC signals are 5, and the input resolutions are connected to the output of the one-shot 1. In addition, the device contains a key input unit 10, the output of which is connected to the second group of inputs of the interface unit 9, a processor 11, the output of which is connected to the third group of inputs of the interface unit 9, blocks 12 and 13 of fixed and random access memory associated with system bus 14 and processor 11 and interface unit 9, and registration unit 15, the input of which is connected to the second group of outputs of interface unit 9,

The device works as follows.

The transducer 3 is installed on the surface of a controlled product (not shown) using a vacuum breaker. Pressing the reset button of the device 10 for key input sets the processor 11 to the initial state. After pushing button 2 with resistor 1 to the enable input of interface 9 and the solenoid coil of converter 3, an electrical impulse is received. The electrical signal from converter 3 is amplified by amplifier 4 and fed to the input of DAC 5. The processor 11 asks to enable the input of interface 9. After the pulse appears on This input processor 11 is running a program that is

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the memory of the ROM 12 transmits qc.rjea interface 9 numerical constants, which will begin to change the transfer ratio of the DAC 5, as well as a digital signal passing through the second amplifier 6 and the detector 7 on the ADC 8. The numerical constants are received via system bus 14 from ROM 12 through the interface 9 to the digital input of the DAC 5 and is compared with the number located in the ROM 12 cell corresponding to the full scale span of the linear indicator of the registration unit 15. As soon as the variable value reaches the maximum value, in the cell of the SZU 13 memory the numerical code of the digital input P / L 5 is memorized.

When moving the transducer 3 to a new connection section, the processing of the signal from the transducer 3 is repeated in the same sequence. The newer value of the digital input code of the D / A converter 5 is compared with the code of the previous measurement. If, as a result of the comparison, the number of the corresponding code turns out to be positive, t. the signal from the converter 3 is larger relative to the previous measurement, then the prodessor 11 will change the value of the numeric 1 digital code of the digital-to-analog converter, the digital-to-analog-converter DAC 5 of the previous value through system bus 14 to interface 9, and the processor 11 is proportional to will reduce the result of the first measurement relative to the second one. If the difference in comparison between the number of the corresponding code turns out to be negative, then on the linear indicator the result of the first measurement will not change, -. on the linear indicator of the registration unit 15, the reading will be proportional to the numerical code of the digital input DAL 5, which will also be stored in the new cell of RAM 13 ,.

After the converter 3 has been moved to new sections of the connection, the corresponding numerical codes of the digital input of the D / A converter 5 are obtained, which are compared with the received codes from the previous measurements. As a result of each such measurement, the previous values are corrected. On the linear indicators of the recording unit 15, the distribution of mechanical forces appears, corresponding to the 1-st quality of the connection. The normal quality condition of the compounds is noted by minor deviations.

indications of linear indicators. By the number of the linear indicator having the maximum value, it is determined on which produced reading the defective place of the product is given.

Claims (1)

Invention Formula A device for monitoring the quality of adhesive joints, containing a loader, made as a solenoid and electrically connected with a single vibrator, a load converter and an amplifier and recording unit connected in series with the single vibrator, characterized in that it is equipped with a digital-to-analog converter (DAD), the input of which is connected to the amplifier output, sequentially connected to the DSL by a second amplifier, detector, analog-to-digital converter (ADC) and an interface unit, the first group of inputs of which is associated with the output of the ADC, the first group of outputs with digital inputs of the D / A converter, the second group of executors - with the code of the registration unit, and the authorization input - with the output of single-detector, the unit of keyboard input; the output of which is connected with the second group of inputs of the interfeg unit, the processor whose output is connected to the input unit of the interface unit for 1 to the third group, and the blocks: permanent and main memory, connected to the “5” by means of a system bus by block.