1. product performance:
When the shaft parts need to be machined at both ends, it is usually first to process one part of the part and then to process the other head. This way is two times of clamping, and the precision of the coaxiality is not well controlled. At the same time, the technical requirements of the workers are high.
This project changes the traditional machine tool processing single head processing mode, using the one clamping and both ends processing at the same time, to develop a single spindle double-sided double knife tower CNC machine tool with high processing precision, high efficiency, low scrap rate and reduce the operation strength of the workers.
(1) and double side compound machining technology design
Using two sets of knife towers, the processing method of multi position machining at both ends of the parts is installed at one time. The processing allowance which is originally needed to be removed in several steps is concentrated in a compound work step, so that the processing time of the multiple steps is all recombined, and the addition of the two ends is completed at one time to avoid the error caused by multiple clamping. It can ensure machining accuracy, reduce processing auxiliary time and increase efficiency by 2-4 times.
(2) design of special spindle box for two ends double card disk
The symmetrical clamping method of the two ends of the spindle box is used to change the forced vibration of the unsymmetric clamping of the traditional axis parts in the chip process, which leads to the problem of the surface quality, size and position accuracy. At the same time, the chuck between the two ends of the spindle box is equipped with a slot to clamp the parts with different structures in the middle part of the shaft, thus enlarging the versatility of the machine tool processing.
(3) design of deferred bi-directional spindle
An extended bi-directional spindle is used to design a shell sleeve component, two detachable extended sleeves fixed at both ends of the shell assembly and a clamping sleeve embedded in the lengthening sleeve for holding the workpiece. A control structure is arranged on the sleeve component to drive one of the extended sleeves along the axis, and the axial extension of the sleeve is realized through the control structure. The purpose of extension is that the change of the clamped specification of the bi-directional spindle can be completed in the condition of only replacing part of the parts, which greatly reduces the replacement cost and maintenance cost of the spindle, and effectively improves the advantages of the application range of the spindle.
(4) design of intelligent control system
This project is designed to share the main shaft box transmission control system and 2 sets of symmetrical structure tool tower transmission control system. By using PLC control design to replace partial relay and redesign the circuit, realize the intelligent control of the machine tool, improve the contact stability, reduce the wiring and improve the production efficiency.