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机械加工中坐标镗床加工释疑

文章出处:未知 人气:发表时间:2019-08-10 19:14
1、坐标镗床按结构特征可分为哪几种?简述其加工内容及精度范围。
1. What kinds of coordinate boring machines can be divided into according to their structural characteristics? The processing content and precision range are briefly described.
答:坐标镗床按外形结构特征,可分为立式、卧式两大类。立式坐标镗床分为单立柱式和双立柱式;卧式坐标镗床分为纵床身式和横床身式。
Answer: The coordinate boring machine can be divided into vertical type and horizontal type according to its shape and structure characteristics. Vertical coordinate boring machine is divided into single column type and double column type; horizontal coordinate boring machine is divided into vertical and horizontal bed type.
坐标镗床主要用以镗削高精度孔和有精确坐标精度的孔。可进行高精度的铣削加工。还常用来在样板和精密零件上划线和刻线,以及对精密零件进行丈量等工作。
The coordinate boring machine is mainly used for boring high precision holes and holes with precise coordinate accuracy. It can be used for high precision milling. It is also often used for marking and marking on template and precision parts, and for measuring precision parts.
坐标镗床的孔加工坐标定位精度可达0.004~0.01mm,加工面的表面粗糙度值小于Ra0.8μm。
The positioning accuracy of the coordinate boring machine can reach 0.004-0.01mm, and the surface roughness of the machined surface is less than Ra0.8um.
2、坐标镗床常用的定位系统装置有哪几种?这些装置由哪些基本部件组成?

2. What kinds of positioning system devices are commonly used in coordinate boring machine? What are the basic components of these devices?

济南机床加工

答:坐标镗床常用的定位系统装置有机械式、光学式、电磁式、光电式、激光式等多种。
Answer: The commonly used positioning system devices of coordinate boring machine are mechanical, optical, electromagnetic, photoelectric, laser and so on.
定位系统的各种装置一般由下列几部分组成:
The various devices of the positioning system are generally composed of the following parts:
(1)检测基准元件。
(1) Testing reference elements.
(2)光电信号传递装置。
(2) Photoelectric signal transmission device.
(3)读数装置。
(3) Reading device.
3、精密线纹尺和光屏读数器定位原理及其特点
3. Positioning Principle and Characteristics of Precision Line Ruler and Light Screen Reader
答:精密线纹尺和光屏读数器的定位原理是:精密线纹尺固定在工作台上,并作为滑扳和工作台移动的长度基准,通过一系列光学系统装置,将线纹尺的线纹间距放大,并成像在光屏上,当移动工作台时,被放大的线纹尺上的刻线也在光屏中移动,这样,在光屏中的分划板上即可精确地测定工作台移动的间隔。
Answer: The positioning principle of the precision ruler and the light screen reader is that the precision ruler is fixed on the worktable and acts as the length reference for sliding pull and moving worktable. Through a series of optical system devices, the distance between the lines of the line ruler is enlarged and imaged on the light screen. When the worktable is moved, the enlarged ruler is placed on the light screen. The markings are also moved in the screen, so that the interval between worktable movements can be accurately measured on the dividing board in the screen.
采用光屏读数器定位的主要特点是定位精度高,而且定位系统是非接触性的,故不会受机械磨损的影响,可长期保持高的定位精度。
The main feature of positioning with optical screen reader is high positioning accuracy, and the positioning system is non-contact, so it will not be affected by mechanical wear, and can maintain high positioning accuracy for a long time.
4、简述感应同步器定位系统的定位原理
4. Brief description of positioning principle of induction synchronizer positioning system
答:感应同步器是利用电磁感应原理,即当两导体的相对位置改变时,它们的感应电动势随之变化。感应同步器定位装置中的标尺固定在床身上,滑尺固定在工作台或滑板上。标尺上的线圈连成一条,滑尺的线圈在中心分为两段,相互错开1/4间距。当移动工作台或滑板时,会使标尺上产生变化的感应电动势。通过电子检测装置将磁信号转变为电信号,并将变化的电信号进行放大、整形、记数等一系列电子技术处理后,就能转变为定位坐标值,显示在数字显示装置上。
Answer: Induction synchronizer is based on the principle of electromagnetic induction, that is, when the relative position of two conductors changes, their induction electromotive force changes accordingly. The scale in the induction synchronizer positioning device is fixed on the bed, and the slide is fixed on the worktable or slide board. The coils on the ruler are connected in a single line. The coils of the slide ruler are divided into two sections in the center, and the distance between them is staggered by 1/4. When moving the worktable or skateboard, the induction electromotive force will change on the ruler. The magnetic signal is transformed into electric signal by electronic detection device, and the changed electric signal is amplified, shaped and counted by a series of electronic technology, which can be transformed into positioning coordinate value and displayed on the digital display device.
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