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yj-ck220st双头双刀塔数控车床性能特点：

产品性能:

轴类零件需要加工两端的端面时，通常是先加工零件的一头然后调头加工另一头,这样做法是经过了两次装夹加工,同轴度精度得不到很好的控制,同时对工人操作技术要求高。

本项目改变传统机床加工单头加工方式，采用一次装夹、两端同时加工的方式，研制一种加工精度高、效率高、废品率低、减轻工人操作强度的单主轴双面双刀塔数控机床。

特点:

（1）、双面复合加工技术设计

利用两组刀塔，一次性装夹、完成零件两端的多工位加工方法，将原先需要在若干个工步中去除的加工余量集中在一个复合的工步中，使多个工步的加工时间全部重合，且一次装夹完成两端的加工，避免多次装夹而产生的误差，保证加工精度，减少加工辅助时间，效率提升2-4倍。

（2）、两端双卡盘主轴箱设计

采用主轴箱双卡盘中间两端对称夹装方式，改变传统轴类零件单向不对称夹装在切屑过程中受迫振动，导致零件表面质量、尺寸及位置精度到不到要求问题。同时主轴箱两端卡盘之间设有让位槽，能对轴类中部具有异性结构的零件进行夹装，扩大了机床加工的通用性。

（3）可延双向主轴设计

采用一种可延长的双向主轴，设计有壳套组件、两个可拆卸的固定于壳套组件两端的延长套以及嵌设于延长套用于夹持工件的卡套，壳套组件上设置有驱使其中一个延长套沿轴向移动的控制结构；通过控制结构实现卡套轴向延伸的目的，具有可在仅仅更换部分零件的状况下完成双向主轴的可夹持的规格的变化，大大减少主轴的更换成本和维修成本，并有效的提高了主轴的适用范围的优点。

（4）、智能化控制系统设计

本项目设计一套共用主轴箱传动控制系统和2套左右对称的结构刀塔传动运行控制系统，通过用plc控制设计，取代部分继电器，对电路进行改造设计，实现对机床的智能化控制，提高接触稳定性，同时减少布线，提高生产效率。

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.

2. characteristics:

(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.

yj-ck220st双头双刀塔数控车床技术参数：

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细节图片：

yj-ck130st双头双刀塔数控车