Xinggan Technology, the application of CNC numerical control, Qinghai Heavy Machinery Machine Tool Co., Ltd., the 808 machine tool is a special machine tool for processing the train wheel to the rim tread. Its tool routing is a plane curve, in order to determine the tool in two directions. On the initial position, we used a two-contact positioning device as follows. The entire tool setting device is mounted on the upper cover of the tool holder, the two contacts 6, 6 are mounted on the guide bars 1 and 2, and the guide bars 1 and 2 are mounted on the casing 3 of the tool setting device, the rear portions of the two guide bars are The return springs are mounted in different directions, and the guides are also provided with a finger 4 and 6. When the tool is turned, the spring is compressed, and the contacts approach the sensitive portion of the switch 5 to generate a signal. The proximity switch 5 is mounted in the casing 3, and the thrust cylinder 7 at the rear of the casing 3 is used to control the extension and retraction of the tool setting device. The underside of the cutter device casing is associated with the tool holder cover plate, and the matching size is 1867. Ding-shaped guide keys.
5. Proximity switch 7. Thrust cylinder 1. Working principle The thrust cylinder 7 pushes the casing 3 to the operable position, and then the entire tool setting process is completed under the control of the numerical control system.
Press the program run command on the control panel to start the tooling process. The tool holder first advances in the negative direction of the shaft. When the contact element hits a certain point on the rim surface and compresses the spring to make the contact finger 6 reach the sensing distance of the proximity switch 5, the proximity switch 5 sends a signal, and the tool holder Start moving along the 2 axis, while the contact retracts the distance, disconnects the signal, and gives up part of the moving space. When the contact 3 touches the wheel end face and compresses the spring, the finger 4 also causes the proximity switch 5 to signal, at which time the tool holder moves again in the negative direction of the long axis.
When the contacts are compressed again and the two proximity switches have signals at the same time, the thrust cylinder 7 contracts, and the tool box casing 3 is retracted. The tool setting process ends, and the position of the tool holder at this time is the cutting initial position of the tool. The machine can be cut according to the existing cutting program.
The proximity switch is selected to be 23, the sensing distance is 3, the highest switching frequency is 15, the voltage is 1030, the maximum load current is 120, and the sensing distance is 18,18. The optical sensing technology is an advanced sensing technology, and the proximity switch is sensitively installed. Simple, small size, high strength and high anti-interference ability. After being applied to the tool setting device, the manual tool setting is changed into automatic tool setting, which improves the accuracy of the tool setting and improves the machining accuracy, especially the processing of the special profile surface, and also reduces the labor efficient MAG of the tool setting. The new development of welding, the status quo of the real-life lost foam casting, the compound gestation technology and the application of the inverted gestation technology on the diesel engine body. The shell size of the ductile iron castings is oversized to prevent the improvement of the Pochang system to reduce the experience of the hydraulic coupling of the steel pipe parts. Squeeze Casting Process of Die Casting Die Metal Cylinder Control of Diesel Engine Cylinders The Influence of the Shape of the Clamping Punch Shape of the Behind-Rear Bevel Gears on the Material Flow of the Rear Axle Reduces the Closed Height of the Composite Blanking Die Suspension New, hot steel welding process research stainless steel composite steel plate container welding adjustment head cutting instrument escalator skeleton group, process improvement Ding 10 tungsten argon arc welding torch improvement welding bevel processing method selection spray nine strengthening Discussion on heat treatment of single-column hydraulic cylinder live column of seepage gear fatigue strength analysis of rolling straight shank twist drill performance test failure analysis before blasting Blue liquid degreasing to improve blasting quality and efficiency of blackening workpiece quality Dong control jack hydraulic cylinder cold extrusion process and wedge tool 镦 hot forging 蜾 bolt head forming mold design double bevel edge cutting tongue bending die Design automatic crimping and deepening leveling die elastic lock washer composite die design fast and suitable computer drawing six quenching media selection and use maintenance
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