标签:blogger.com, 1999:博客- 6100712988600936538 2021-10-30T03:18:27.372-07:00 印度最好的品牌车床ld体育下载 印度最好的车床制ld体育下载造商提供的优质车床 ld体育下载 http://www.blogger.com/profile/05420777738863149477 noreply@blogger.com 博客作者 1 1 25 标签:blogger.com,1999:blog-6100712988600936538.post-2024581546932453433 2012-10-23T11:56:00.003-07:00 2012 - 11 - 02 - t03:29:55.880 07:00 印度最好的品牌车床ld体育下载
寻找印度的品牌和优质车床制造商,他们提供各种车床,如车床、重型车ld体育下载床、中型车床;车床,低负荷;车床,全齿轮传动;工业车床;车床什么是车床?



车床是一种机床,它在其轴上旋转工件以执行各种操作,如切割、打磨、滚花、钻孔、,或使用应用于工件的工具进行变形,以创建具有旋转轴对称性的对象。

车床用于木工、金属加工、金属旋压、热喷涂/零件回收和玻璃加工。车床可以用来塑造陶器,最著名的设计是陶工的轮子。配备最合适的金属加工车床也可用于生产大多数旋转实体、平面和螺纹或螺旋。装饰性车床可以产生难以置信的复杂三维实体。材料可以由一乐动西甲合作伙伴个或两个中心固定,其中至少一个中心可以水平移动,以适应不同的材料长度。其他工件夹持方法包括使用卡盘或夹头围绕旋转轴夹持工件,或使用夹具或卡爪将工件夹持至面板。
可在车床上制造的物体示例包括烛台架、枪管、球杆、桌腿、碗、棒球棒、乐器(尤其是木管乐器),曲轴和凸轮轴。



35号楼的车床


说明

车床的用途是靠其控制位置的工具旋转零件。它可用于制造具有圆形横截面的零件和/或特征。主轴是车床的旋转部件。各种工件固定附件,如三爪卡盘、夹头和中心可以固定在主轴中。主轴由电机通过皮带传动和/或齿轮传动系统驱动。主轴速度通过改变传动系的几何形状来控制。
尾座可用于用中心支撑工件端部,或用于固定用于钻孔、铰孔、螺纹或切削锥度的刀具。它可以调整位置沿的方式,以适应不同长度的工作。滑枕可通过尾座手轮沿旋转轴进给。
滑架控制并支撑刀具。它由以下部分组成:
一个鞍座,与导轨配合并沿导轨滑动。
一个裙板,用于控制进给机构。
一个横向滑块,用于控制刀具的横向运动(朝向或远离操作员).
调整以允许刀具角度移动的刀具化合物。
固定刀架的刀架T形槽。
选择刀具




刀具术语

上图显示了一种典型的刀具和用于描述它的术语。实际几何图形因要完成的工作类型而异。标准切削刀具形状如下图所示。
研磨贴面刀具以提供中心间隙。
粗加工刀具具有较小的侧面卸压角,以便在深切削过程中留下更多材料支撑切削刃。
精加工刀具具有更圆的刀尖,以提供更精细的光洁度。圆头工具用于较轻的车削。它们没有背耙或侧耙以允许在两个方向上进行切割。
左手切割工具设计为在从左到右移动时切割效果最好。
铝最好使用特殊形状的切割工具(未显示)切削刃略高于中心以减少颤振。


标准刀具


安装刀具

车床刀具由刀架固定。要安装工具,首先清洁保持架,然后拧紧螺栓。(2.11MB)(6.72MB)

使用T形螺栓将工具杆固定到化合物上。使用快速释放杆将刀架固定在刀架上。(1.99MB)(6.35MB)

定位刀具

为了移动切割刀具,可以手动移动车床鞍座和横向滑块。(860kB)(2.91MB)

这些轴也有电源。程序因机器而异。

第三个运动轴由化合物提供。可以调整化合物的角度,以允许以任何所需角度切割锥度。首先,松开将化合物固定至鞍座的螺栓。然后参考化合物底部的千分表,将化合物旋转至所需角度。重新拧紧螺栓。现在,刀具可以沿所需角度手动进给。该化合物无电源供给。如果需要精加工,则使用双手实现更平滑的进给速度。2.05MB(6.54MB)

十字滑块和组件und have a micrometer dial to allow accurate positioning, but the saddle doesn't. To position the saddle accurately, you may use a dial indicator mounted to the saddle. The dial indicator presses against a stop (often a micrometer as shown in the clip). 1.29MB (4.25MB)

Feed, Speed, and Depth of Cut

Cutting speed is defined as the speed at which the work moves with respect to the tool (usually measured in feet per minute). Feed rate is defined as the distance the tool travels during one revolution of the part. Cutting speed and feed determines the surface finish, power requirements, and material removal rate. The primary factor in choosing feed and speed is the material to be cut. However, one should also consider material of the tool, rigidity of the workpiece, size and condition of the lathe, and depth of cut. For most Aluminum alloys, on a roughing cut (.010 to .020 inches depth of cut) run at 600 fpm. On a finishing cut (.002 to .010 depth of cut) run at 1000 fpm. To calculate the proper spindle speed, divide the desired cutting speed by the circumference of the work. Experiment with feed rates to achieve the desired finish. In considering depth of cut, it's important to remember that for each thousandth depth of cut, the work diameter is reduced by two thousandths.

Turning

The lathe can be used to reduce the diameter of a part to a desired dimension. First, clamp the part securely in a lathe chuck (636kB). (2.91MB)

The part should not extend more that three times its diameter. Then install a roughing or finishing tool (whichever is appropriate). If you're feeding the saddle toward the headstock (as in the clip below) use a right-hand turning tool. Move the tool off the part by backing the carriage up with the carriage handwheel, then use the cross feed to set the desired depth of cut. In the clip below, a finish cut is made using the power feed for a smoother finish. Remember that for each thousandth depth of cut, the work diameter is reduced by two thousandths.
(click here for video) 821kB

Facing

A lathe can be used to create a smooth, flat, face very accurately perpendicular to the axis of a cylindrical part. First, clamp the part securely in a lathe chuck (636kB). Then, install a facing tool. Bring the tool approximately into position, but slightly off of the part. Always turn the spindle by hand (248kB)before turning it on. This ensures that no parts interfere with the rotation of the spindle. Move the tool outside the part and adjust the saddle to take the desired depth of cut. Then, feed the tool across the face with the cross slide. The following clip shows a roughing cut being made; about 50 thousandths are being removed in one pass. (click here for video) 2.35MB If a finer finish is required, take just a few thousandths on the final cut and use the power feed. Be careful clearing the ribbon-like chips; They are very sharp. Do not clear the chips while the spindle is turning. After facing, there is a very sharp edge on the part. Break the edge (205kB) with a file.

Parting

A parting tool is deeper and narrower than a turning tool. It is designed for making narrow grooves and for cutting off parts. When a parting tool is installed, ensure that it hangs over the tool holder enough that the the holder will clear the workpiece (but no more than that). Ensure that the parting tool is perpendicular to the axis of rotation and that the tip is the same height as the center of the part. A good way to do this is to hold the tool against the face of the part. Set the height of the tool, lay it flat against the face of the part, then lock the tool in place. (click here for video) 2.45MB When the cut is deep, the side of the part can rub against sides of the groove, so it's especially important to apply cutting fluid. In this clip, a part is cut off from a piece of stock.
(click here for video) 246kB

Drilling

A lathe can also be used to drill holes accurately concentric with the centerline of a cylindrical part. First, install a drill chuck into the tail stock. Make certain that the tang on the back of the drill chuck seats properly in the tail stock. Withdraw the jaws of the chuck and tap the chuck in place with a soft hammer. (click here for video) 1.93MB

Move the saddle forward to make room for the tailstock. Move the tailstock into position, and lock the it in place (otherwise it will slide backward as you try to drill). Before starting the machine, turn the spindle by hand. You've just moved the saddle forward, so it could interfere with the rotation of the lathe chuck. Always use a centerdrill to start the hole (2.30MB). You should use cutting fluid with the centerdrill. It has shallow flutes (for added stiffness) and doesn't cut as easily as a drill bit. Always drill past the beginning of the taper to create a funnel to guide the bit in (click for computer generated animation of funnel effect, not yet available). In this clip, a hole is drilled with a drill bit.(click here for video) 1.07MB Take at most one or two drill diameters of material before backing off, clearing the chips, and applying cutting fluid. If the drill bit squeeks, aplly solvent more often. The drill chuck can be removed from the tail stock by drawing back the drill chuck as far as it will easily go, then about a quarter turn more. A pin will press the chuck out of the collet. (click here for video) 554kB

Boring

Boring is an operation in which a hole is enlarged with a single point cutting tool. A boring bar is used to support the cutting tool as it extends into the hole. Because of the extension of the boring bar, the tool is supported less rigidly and is more likely to chatter. This can be corrected by using slower spindle speeds or by grinding a smaller radius on the nose of the tool.


Boring On a Lathe

Single Point Thread Turning

External threads can be cut with a die and internal threads can be cut with a tap. But for some diameters, no die or tap is available. In these cases, threads can be cut on a lathe. A special cutting tool should be used, typically witha 60 degree nose angle. To form threads with a specified number of threads per inch, the spindle is mechanically coupled to the carriage lead screw. Procedures vary for different machines.

Advanced Work Holding

Some parts require special techniques to hold them properly for lathe work. For instance, if you wish to cut on the entire outside diameter of a part, then the part cannot be held in a chuck or collet. If the part has a hole through it, you can press it on to a lathe arbor (a slightly tapered shaft), and clamp onto the arbor rather than the part itself. The hole must have an adequate aspect ratio or the part will not be firmly supported.
(click here for video) 554kB

If the part has a very large hole through it, a lathe arbor may not be a practicable solution. You may instead use the outside of the jaws to hold the inside diameter of the part.
(click here for video) 983kB

If the part has a very complex geometry, it may be neccesary to install the part onto a face plate. The face plate is then attached to the spindle.




How Many Types of Lathe Machine In India?

There is lots of types of Lathe machine available in India, Like Heavy Duty Lathe Machine ,Medium Duty Lathe Machine,Lower Duty Lathe Machine,CNC Lathe Machine,All Geared Lathe Machine.



Lathe Machine Manufacturers are as below State Wise



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