6 results about "Rotary encoder" patented technology

The invention relates to a mold feeding height measurement calibration method of a pressing machine, which belongs to the technical filed of a control system of the pressing machine. The invention utilizes the characteristics that when the positive direction rotation output of an absolute value rotation coder without a reset switch fixed in a slide block exceeds the maximum value, the output is progressively increased again from the initial point, and conversely, when the reverse direction rotation of the coder is smaller than 0 bit, the output is progressively decreased from the maximum value. A PLC program of the calibration algorithm is designed, so the measurement state of the coder can be determined according to an input actual measurement value only through inputting manually measured actual mold feeding height value of the slide block before entering the calibration picture of a human-computer interface. Thus, that any position can reach the zero point of the coder in the measurement process of the coder can be known, so the corresponding algorithm program can be determined. The invention realizes the effects of simple operation and no need of professional staff and professional software, and the measurement value can be calibrated and corrected through the human-computer interface.

Provided is a rotary encoder allowing further size-reduction and cost-reduction to be achieved compared to prior art. The rotary encoder (10) comprises a base member (12), a first fixed contact member (14) provided on the base member (12), a plurality of second fixed contact members (16, 18) provided so as to leave a space to the first fixed contact member (14), a rotor member (20) rotatably supported by the base member (12), and a rotating contact member (22) having protruding and recessed portions in the rotation direction and rotating together with the rotor member (20). The first fixed contact member (14) is always in contact with the rotating contact member (22), and, through the rotation of the rotor member (20), the second fixed contact members (16, 18) become caught and released by the protruding and recessed portions of the rotating contact member (22), thereby bringing the rotating contact member (22) and the second fixed contact members (16, 18) into contact to turn the electrical connections between the rotating contact member (22) and the second fixed contact members (16, 18) on and off while giving rise to a clicking feel.

The invention discloses a device for online measuring dynamic performance of an ultra-precision hydrostatic spindle and a method for measuring the dynamic performance of the hydrostatic spindle by using the same, and relates to the method for online measuring the dynamic performance of the ultra-precision hydrostatic spindle. The problem that in the convention method, online measurement of the dynamic performance of the ultra-precision hydrostatic spindle cannot be carried out, or influence of an installing error and a manufacturing error of a measuring benchmark on a measuring result is difficultly avoided is solved. The method provided by the invention comprises the following steps: acquiring displacement information between a sensor and a standard ball by using a high-precision displacement sensor; amplifying the acquired displacement information by a signal amplifier; inputting the acquired displacement information into a computer after passing through an A/D (analog/digital) conversion circuit and a data acquisition circuit; acquiring phase information of the spindle and inputting the phase information into the computer by using a rotary encoder; analyzing and processing the phase information by the computer to obtain error data of the rotating dynamic performance of the ultra-precision hydrostatic spindle, thereof implementing the online measurement of the dynamic performance of the ultra-precision hydrostatic spindle. The device and the method are applicable to the online measurement of the dynamic performance of the ultra-precision hydrostatic spindle.

The invention discloses a ceramic bottom deglazing transmission device, which relates to the field of transmission belt equipment. In the prior art, if one transmission belt fails, the other will wear off the ceramic bottom, resulting in a decline in the qualified rate of ceramics, and the existing transmission belt is longer. The speed is slow, and the glaze on the conveyor belt is easy to dry and difficult to clean. By setting two turning rollers and a cleaning rod on the conveyor belt, the conveyor belt is bent into a "V" shape, and then sprayed and washed by the cleaning rod. The glaze on the conveyor belt is automatically cleaned to avoid the problem that it is difficult to clean up after long-term evaporation. Two rotary encoders are added to the two conveyor belts of the original deglazing unit, and the conveyor belt is realized by cooperating with the control unit. The role of monitoring, thus effectively avoiding the phenomenon of unqualified products caused by conveyor belt failure. The invention can be put into use only by improving the original device, reduces the production cost, improves the production efficiency of ceramics, and has broad market prospects.

The invention discloses a safety protection device for a laser automatic unpacking machine. The device comprises a switch connecting sleeve and a switch pedestal, wherein the switch pedestal is cylindrical and one end of the switch pedestal is provided with an end cover; the switch connecting sleeve is arranged in the switch pedestal and is connected with the end cover through a spring; a switch and a roller are fixedly arranged in the switch connecting sleeve; the roller is connected to the inner wall of the switch connecting sleeve through a shaft; the end face of the roller is provided with a plurality of through holes which are uniformly distributed along the circumference centered on the shaft; the through holes are aligned with a receiver on the switch; and when the spring is in a natural state, the roller extends out of the switch pedestal. In the invention, movement of a packing box on a conveying mechanism is converted into an electric signal, and data processing is performed through a PLC (Programmable Logic Controller) to control turn-on and turn-off of a laser device; laser is prevented from irradiating the same position on a sealing compound for a long time so as not to cause a fire accident; and compared with a rotary encoder, a photoelectric encoder has a simple structure and low cost.