Intelligent heavy horizontal lathe tailstock pre-tightening force measuring device

Heavy duty horizontal lathe tailstock pre-tightening force 2020 - intelligent measuring device 01 - 19 xue-fang Chen ShangLianFeng Cui Hongfeng ( Qiqihar second machine ( Group) A limited liability company design institute) 【 Abstract 】 : this paper introduces a new intelligent measuring device, using cylinder measuring force, through the electric contact pressure gauge with cylinder connecting numerical display top force, connected to the intelligent memory again, realized the heavy horizontal lathe tailstock and measuring the function of the intelligent reading. Status quo analysis of the current, known heavy horizontal lathe tailstock visual, top tight force by the pressure gauge to measure the top tight force, according to the quality of the workpiece calculated by the machine operators and the quality of different workpiece clamping power at the top of the process need to change is different, the size of the need to observe operating workers top force of pressure gauge and changes in values, such trouble not only, and not in time, once top tight force, indicating value deviation will cause serious accidents, particularly heavy and super-heavy sleeper tailstock top power of accurate observation is very important to the safe operation of the machine tool. The design principle of intelligent measuring device ( 1) The tailstock structure ( See the appended drawings) Design description: the upper sleeve is installed in the tailstock, spindle structure is placed in the front of sleeve, sleeve load cylinder sleeve and mobile mechanism is installed in the back of my sleeve, sleeve clamp, relaxation mechanism in the upper sleeve, the spindle structure is placed in the front of sleeve, sleeve top after hydraulic force measuring device in a sleeve, sleeve mobile mechanism is installed in the back of my sleeve, sleeve clamp, relaxation mechanism in the upper sleeve, tailstock clamping, relaxation mechanism in the tailstock on both sides of the lower part of the body, the tailstock mobile mechanism is installed at the bottom of the tailstock body, suitable for heavy and super-heavy horizontal lathe is used. The tailstock chart 1. Top; 2. The tailstock body; 3. Front bearing; 4. Sleeve brake tight stick; 5. The sleeve; 6. Spindle; 7. Thrust bearing; 8. After the bearing; 9. Nut; 10. Screw; 11. Disc spring set for thermal deformation compensation; 12. Bearing; 13. Load cylinder; 14 and 16. Worm gear; 15 and 17. Worm; 18. Torque limiter. 19. The sleeve movement motor, 20. Electric contact pressure gauge; 21. Computer intelligent testing storage sleeve inside the spindle structure of high precision of imported bearing, good dynamic and static stiffness, sleeve with thermal deformation compensation device, ensure the machining process in the middle of the back axle doesn't change the thermal deformation of workpiece, can effectively resist the cutting force and vibration in the process of machining, the sleeve top load cylinder, electric contact pressure gauge, intelligent memory and sleeve mobile mechanism to realize the intelligence of heavy-duty horizontal lathe tailstock top force test. （ 2) The working principle of explanation. Intelligence examination organization characteristics: the spindle is installed inside the sleeve top installed in shaft, sleeve is equipped with front bearing and the bearing, top tight artifacts, top tight force through the mandrel pressure at the rear to the sleeve nut, screw, the screw rotation axial movement, drives the nut sleeve drive motor through the torque limiter 16 17 drive worm gear and worm rotates, again by 14 15 drive worm gear and worm rotation. Artifacts produced to the top of the axial force effect on the load cylinder, oil cylinder pressure change, and change the electric contact pressure gauge pressure storage into the computer intelligent detecting memory chips. Intelligent detection by computer memory can be set in advance the quality of all kinds of artifacts needed top tight force value, including the top tight force of maximum and minimum limit preset programmed in, so that once the abnormal top force, the release of an alarm signal, the system automatically sends a signal in time to cut off the sleeve drive motor, so as to realize intelligent control horizontal lathe tailstock top force. Conclusion the tailstock structural system, using cylinder measuring force through the electric contact pressure gauge with cylinder connected numerical display top force, connected to the intelligent memory again, realized the heavy horizontal lathe tailstock and measuring the function of the intelligent reading. This heavy horizontal lathe tailstock intelligent detection of top force, machining accuracy of nc machine tools and the improvement of safety is a reliable guarantee, realize the intelligent control horizontal lathe tailstock top force, simple structure, safe and reliable, especially of heavy and super-heavy sleeper tailstock intelligent detection of top force, more important to the safe operation of the machine tool. Source: the metal processing ( Cold working) 06, 2018