SU405263A1 - Method of active control of kinematic error and chain setting of a gear grinding machine - Google Patents

Description

(54) METHOD OF ACTIVE CONTROL OF KINEMATIC ERROR AND SETTING OF THE CIRCUIT OF THE RENTAL OF THE OUTLETS MACHINE

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The isotopherche concerns the control of the kinematic error of the machine and, in particular, the method of controlling the kinematic error of the chain of rolling of the gear grinding strike.

There is a known method of actively controlling the kinematic error and tuning the chain of rolling gear for the grinding of the 1-st machine, based on mechankic fixation of the movement of the final links with the use of a rolling individual disk and ruler.

The known method of control does not ensure the control of the kinematic error of the specified chain in the process of grinding the product and active tuning with the additional adjustment of the rolling chain to the processing of a given wheel.

The aim of the invention is to improve the accuracy of control and adjustment to a predetermined nominal value of the rolling chain of a gear grinding machine during the process of encrypting the tooth profile of the wheel to be machined.

The goal is achieved by independent independent control using angle and linear displacement sensors, movements of the final links (rotational ct) and translational Lf) followed by comparison based on a known relationship expressing a given production circle of the gear wheel Rp by processing electic signals coming from the sensors of rotation angle, linear movement and block of the control unit, which sets the electrical section of the movements of the final chain links of the machine 3 bridges from the parameters of the gear teeth of the wheel and processing modes.

FIG. I shows a schematic diagram of the continuous control of kinematic error, the movement of the body, and posture: in FIG. 2 is a schematic diagram of the development of the chain of rolling in the process of grinding the product f for each machine to process a given wheel.

Claims (1)

The KHHerviaTvi ic-cKOK monitoring of the hull chain downthitch is provided by controlling the character of the crash of i oles by the angle sensor lijBopoTa 2 (the angle of the rotation of the table in time is converted into electrical signals y). At the same time, the linear mixing sensor 3 monitors the nature of the linear input of the table’s motion in time and generates it into electrical signals. Both signals X and Y come in B blocks of formation of the information blocks 4, after being sent to the cut-off block 5 measuring pulses, the interval between the signals Y is filled with measuring pulses X- From the cut-off block, the signal X goes to the counter of the read 6. they are compared with the reference number of signals from the control unit 7 through the decoder 8. In the control unit 7, the number of reference (reference) signals is adjusted depending on the parameters of the gear (Z, m „) processed linear displacement 3 (s, f), table rotation angle sensor 2 (P, k) and processing mode (w) s-H-f K Zm-Tt-uL Subtraction counter 6 selects a group of pulses expressing an instantaneous (time) kinematic error of the machine rolling in within the limits of the angle of rotation of the table corresponding to the angular price of the pulses of the angle of rotation sensor 2 of the table. Selected in the subtraction counter 6 the kinematic error of the machine rolling circuit is translated into the width of a fixed frequency clock pulse with voltage and by means of the clock pulse generator 9, hour meter counter 10 and pulse width modulator 11. After amplification in block 12, the signals go to the recording device 13, writing on scale paper continuous quantized value of the kinematic impregnation of the chain of the frame and gear grinding machine within the length of about): ATA, and the necessary profile processing (troughs of The value of the kinematic error in the rolling circuit selected in the subtraction counter 6 can be entered into a correction mechanism with feedback. When processing the next profile, the cycle is repeated. The smooth grinding course is fixed each time using the corresponding machine limit switches. in the process of grinding and setting up the machine for processing a given wheel (Fig. 2) is provided by monitoring the nature of rotation of the processed wheel 1 by means of a sensor the angle of rotation 2 of the table converts the angle of rotation of U in time into electrical signals y. At the same time, the linear displacement sensor 3 monitors the nature of the linear translational motion of the table over time and converts it into electrical signals x. The sensor-cutter 14 selects the required length of the rolling-in With the signals g and z,.,. The signals X and y enter the signal conditioning units 4, and then they are sent to the cut-off block 15 measuring pulses, where the signals 2, V ig form an interval corresponding to the run-in length S, filled with measuring pulses X. -y enters the subtraction counter 6, where they are compared with the reference number of N signals coming from the control unit.1 7 through the decoder 8. In the control unit 7, the number of reference (reference) signals N is adjusted in full accordance with the setting b eye control, with the active control of machine running-chain kinematic error depending on (I). The subtraction counter 6 selects a group of pulses expressing not the decisiveness of setting the chain of rolling of the machine within the range of the rolling edge S (or its segment l 5). From the subtraction counter 6, the signals are fed to the gain block 16 and to the digital indicator 17, or to a corrective feedback mechanism. If there is no corrective mechanism for minimizing the indicator 17, depending on the permissible error, adjust the rolling chain of the machine to process a given wheel with tuning strokes, or tune the rolling chain during grinding of the wheel to be machined. The method of active control of kinematic rigidity and tuning of the rolling chain of a gear grinding machine, based on determining the nominal ratio of rotational and translational movements of the final links of the rolling chain using transducers of mechanical movements into electrical signals, characterized in that, in order to improve the accuracy of control of the continuous effective kinematic error chains of rolling in the entire range of processing the profile of the tooth of the wheel, setting and adjusting the chain of rolling during adjusting moves and in the process of gear grinding, K1T performs independent separate control of the volvo-forming movements of the final links of the machine rolling chain, followed by comparison with the reference value, and then adjusting the nominal ratio of the rotational and translational movements of the final links of the machine rolling chain, according to the calculated dependence The elemental control tatam identifies the effective kinematic error of the chain of rolling and the error of tuning the chain of rolling, and according to the results of These errors make an active correction of the Sbath chain during adjustment and in 1 grinding process. 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