横进给

The maximal depth model for single-pass milling process, the depth and surface roughness for plane surface are established. The milled profile of a single-pass milling of the jet can be modeled as a cosine curve of the form. Therefore, the maximal depth model for single-pass milling is established which indicates the quantitative relationship between the AWJ single-pass milling depth and the milling parameters.

假设磨料水射流单次铣削时的工件横截面形状为余弦曲线，建立了磨料水射流单次铣削的最大深度模型，分析了水射流压力、磨料流量、靶距、喷嘴横移速度、横向进给量和喷嘴直径及材料性能参数对单次铣削最大深度的影响规律。

The introductive robot arm of this text can output two lines pulses by the PLC, driving the horizontal stalk, and the perpendicular stalk to drive the electrical engineering actuator respectively, to control the robot arm precision of the horizontal stalk and perpendicular stalk at the fixed position, tiny move switch input the position signal to the PLC.The direct current motor drags along to begin the claw and bedrocks to revolve, the position signal from revolve the code dish and near to the switch feedback to host of PLC;The electromagnetism valve control the machine hand open and close, thus carry out the function of the machine hand precision work.

本文介绍的机械手是由PLC输出两路脉冲，分别驱动横轴、竖轴步进电机驱动器，控制机械手横轴和竖轴的精确定位，微动开关将位置信号传给PLC主机；直流电机拖动手爪和底盘旋转，位置信号由旋转码盘和接近开关反馈给PLC主机；电磁阀控制气开阀的开关来控制机械手手爪的张合，从而实现机械手精确运动的功能。

Ordinary lathe knife rest vertical and crosswise enter, give sport to turn from main shaft round sport hang wheel transmit, with cross, enter give gearbox, drive, slip away board case by mere thick stick or guide screw, vertical to slip away the board, slip away board move sideways.

普通车床刀架的纵向和横向进给运动是由主轴回转运动经挂轮传递而来，通过进给变速箱后，由光杠或丝杠带动溜板箱，纵溜板，横溜板移动。

When the engine bed overloads, can cause the tool rest automatically to stop; Also may the hand operated tool rest move or the realization quick movement and so on.

此外，有些机床的溜板箱中还具有改变纵、横机动进给运动方向的换向机构，以及快速空行程传动机构等。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。