精密机械加工工艺设计外文文献翻译

精密机械加工工艺设计外文文献翻译

In the process of machining。the XXX cutting force。centrifugal force。inertia force。etc。In order to ensure that the workpiece XXX external forces。XXX displacement。XXX workpiece.

XXX Clamping Device

There are many types of clamping devices。but their XXX.

1.Power Device

The source of clamping force XXX force。The device that can generate force is called the power device of the XXX used power devices include pneumatic devices。hydraulic devices。electric devices。ic devices。gas-liquid linkage devices。XXX。it does not have a power device.

2.Clamping Part

The part that accepts and transfers the original force and transforms it into clamping force and performs XXX consists of the following mechanisms:

1) Mechanisms that accept the original force。such as handles。nuts。and mechanisms used to connect the XXX.

2) Intermediate force transfer mechanisms。XXX.

3) Clamping elements。XXX.

Among them。the XXX of the original force during the process of transmitting the original force to the clamping element。as well as self-locking.

XXX Clamping Device

XXX。XXX:

1.Appropriate clamping force。It should ensure that the n of the workpiece remains XXX。XXX workpiece.

2.XXX the clamping device should be adapted to the n plan。While ensuring n efficiency。its structure should be as simple as possible for easy manufacturing and maintenance.

3.Good usability。The n of the clamping device should be convenient。safe。and labor-saving.

III。Basic Clamping Mechanisms

The original force is XXX。Among the many clamping mechanisms。the most commonly used are inclined wedge。spiral。eccentric。XXX.

1.XXX

XXX in place。It is usually made up of a clamp。a base。

and a locating element。The clamp is the main component that exerts the clamping force on the workpiece。The base provides a stable support for the clamp。while the locating element determines the precise n of the workpiece。The clamping part

must be designed to fit the specific shape and size of the workpiece to ensure a secure grip.

XXX during machining。XXX.

In summary。the clamping device is an essential component

in the machining process。It must be XXX force and hold the

XXX and designing a reliable clamping part。the machining process can be carried out with n and accuracy.

XXX firmly。the original clamping force must be received and XXX involves the n of us components。including handles。

nuts。and cylinders。which are used to connect the different parts of the XXX。hinges and levers are used to deliver force in the middle。while plates and XXX.

XXX role in the process。It can be used to change the n and size of forces。as well as provide self-locking mechanisms。These features are essential for ensuring the effective n of the clamping device.

When designing a clamping device。it is XXX。the device must not damage the XXX。it must be able to securely clamp the workpiece in place。while also XXX requirements。XXX.

The self-XXX wedge clamping involve the wedge angle being smaller than that of the workpiece。and the angle een the concrete and the n angle being een the wedge and the XXX-locking。manual clamping usually requires an angle of 6° to 8°。while XXX devices can use an angle of 15° to 35°。Wedge clamps are simple in structure and widely available.

XXX clamping bodies。which are reliable and have good clamping force due to their small XXX fixtures。with the XXX。The simple structure of the screw clamp body makes it a popular choice.

XXX。this can easily damage the surface of the workpiece when XXX。a swinging press XXX the press and the workpiece。the torque is greater than the n een the screw and the workpiece。XXX.

One drawback of the clamping n is that it can be slow and

time-consuming to load and unload the workpiece。To e this。rapid clamping bodies can be used.

Another common method for clamping is to use a XXX standardized in size and design。making it easy for designers to refer to nal XXX.

Finally。eccentric clamps can also be used for clamping。These clamps have an off-center axis。XXX workpiece.

With eccentric pieces。the XXX eccentric pieces: the XXX structure is simple and easy to manufacture。making it widely used.

XXX is an easy and rapid process。but its clamping force XXX。it is not XXX and n。as there is no XXX impacts the processing.

XXX.

The self-XXX a≤j1+ j2 and the derived formula f1≥2e / D。When f =0.1 hours。e / D≥20.and when f =0.15 pm。e / D≥14.

XXX。it is important to note that proper clamping force XXX.

leveraged ns。such as wedges。XXX。such as spring clip drums。diaphragm chucks。bellows units。and liquid plastics.

2.The central element of surface。such as the axis or centerplaneXXX-XXX.

3.The role of centering clamping ns XXX。while the second type uses XXX-XXX.

The rotary screw thread at both ends has the same pitch。allowing for V-shaped gags to move XXX of the work piece during clamping or release。Different shapes of V-shaped work pieces XXX.

XXX clamping bodies have a simple structure and are generally effective。but their centering accuracy is not high。They are mainly XXX XXX.

XXX-centering mechanism。XXX around the axis。The three XXX of the cards to center and clamp or release the work piece.

The centering clamping rigid body is known for its fast movement and force XXX。making it XXX。its XXX low。usually around 0.1mm。Since the body cannot self-lock using a lever。ns rely on self-locking air XXX.

One type of centering clamping body is the wedge mobile folder。XXX within the hole and left n in the fixture。The six-cylinder through the rod causes the left claw to clip onto the slope

of the ontology while the other hand claw shifts to the right folder。clamping the workpiece。The claw is released using the spring circle card folder.

XXX structure and are used for semi-finishing processes。

with n centering ranging from 0.02mm to 0.07mm compared to the hole for ning the base of the workpiece surface.

High-XXX demand high-XXX distance accuracy of these jigs ca n be improved to ±5μm。while the bearing surface of vertical fixtures can achieve 0.01mm/300mm。and parallelism XXX

0.01mm/500mm。XXX up to 2~5μm with the use of XXX to the micron level。making the leading XXX needs of different industries and economies。different models of fixtures are available with varying grades of accuracy.

XXX efficiency。One such tool is the double-sided。four or more clamping fixture that can be used on a variety of XXX and XXX-centering clamps。n flat clamps。clamping levers。cam

clamps。pneumatic and hydraulic clamps。XXX。XXX that can step up and release the workpiece in just 1-2 seconds。These fixtures simplify the structure of the machine and make it easier to carry out stage-faceted processing.

The American company JERGENS has XXX fixtures in just one minute。This system is flexible and can be used to replace fixtures on n lines。XXX。

Overall。the development of XXX introduced。XXX.

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翻译部分 英文原文 High-speed machining and demand for the development of High-speed machining is contemporary advanced manufacturing technology an important component of the high-efficiency, High-precision and high surface quality, and other features. This article presents the technical definition of the current state of development of China's application fields and the demand situation. High-speed machining is oriented to the 21st century a new high-tech, high-efficiency, High-precision and high surface quality as a basic feature, in the automobile industry, aerospace, Die Manufacturing and instrumentation industries gained increasingly widespread application, and has made significant technical and economic benefits. contemporary advanced manufacturing technology an important component part. HSC is to achieve high efficiency of the core technology manufacturers, intensive processes and equipment packaged so that it has a high production efficiency. It can be said that the high-speed machining is an increase in the quantity of equipment significantly improve processing efficiency essential to the technology. High-speed machining is the major advantages : improve production efficiency, improve accuracy and reduce the processing of cutting resistance. The high-speed machining of meaning, at present there is no uniform understanding, there are generally several points as follows : high cutting speed. usually faster than that of their normal cutting 5 -10 times; machine tool spindle speed high, generally spindle speed in -20000r/min above 10,000 for high-speed cutting; Feed at high velocity, usually 15 -50m/min up to 90m/min; For different cutting materials and the wiring used the tool material, high-speed cutting the meaning is not necessarily the same; Cutting process, bladed through frequency (Tooth Passing Frequency) closer to the "machine-tool - Workpiece "system the dominant natural frequency (Dominant Natural Frequency), can be considered to be high-speed cutting. Visibility high-speed machining is a comprehensive concept. 1992. Germany, the Darmstadt University of Technology, Professor H. Schulz in the 52th on the increase of high-speed cutting for the concept and the scope, as shown in Figure 1. Think different cutting targets, shown in the figure of the transition area (Transition), to be what is commonly called the high-speed cutting, This is also the time of metal cutting process related to the technical staff are looking forward to, or is expected to achieve the cutting speed. High-speed machining of machine tools, knives and cutting process, and other aspects specific requirements. Several were from the following aspects : high-speed machining technology development status and trends.

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机械设计制造及其自动化专业用于医疗器械的精密装配系统大学毕业论文外文文献翻译及原文

毕业设计（论文） 外文文献翻译 文献、资料中文题目：用于医疗器械的精密装配系统 文献、资料英文题目： 文献、资料来源： 文献、资料发表（出版）日期： 院（部）： 专业：机械设计制造及其自动化（英语强化）班级： 姓名： 学号： 指导教师： 翻译日期： 2017.02.14

用于医疗器械的精密装配系统 Precision assembly systems for medical devices Christine Connolly 钟乳石技术有限公司，英国，韦克菲尔德 摘要： 目的——本文意在描述各个公司在医疗器械的自动装配设备方面的方法和科技。 设计/方法/途径——医疗器械装配市场的结构已介绍过，在中间产品市场环节中的小公司所拥有的专业知识与设备也已介绍过。Mikron公司装配技术的模块化装配方法也已彻底查验过。最后，一家装配大量医疗机械的公司的出现也将提上日程。 研究表明——新医疗器械产品的发展需要很多级的检测和确认，这为很多规模截然不同的公司提供了不同的专营市场。为了保证此器械在整个使用周期中都能正常工作，装配的可靠性和精度则是至关重要的。测试和检查也从装配生产线上必不可少的环节变成为客户提供高度的中间过程安全性和可可溯源性。 关键词自动化，装配，医疗器械，医疗用品 论文类型技术论文 引言 精密装配作业设备需要很高的精度，可靠性，生产效率和成本效率，而对医疗设备部分而言则尤具挑战。像耳咽管和针头这类物品生产量非常大，所需的装配速度也可达到每分钟1000件。Kahle Automation公司的自动化构建系统可在同一时间装配50只针头而且达到100%的检查。然而，用户无法把资产付出到这样一种为了满足条理和规范，而等到产品通过了所有测试和质量级别检验的设备。BPT公司（简称BPT）的Bill Bailey 解释说：“公司手工制作首批加工的40或50个样品的新设备，如胰岛素注射笔。然后它们进入‘批准'阶段。他们必须经历约150000至200000次测试才能经受住所有的测试和质量检测程序以便公司和其他机构的审批。BPT公司专门从事设计和制造诸如这类‘中间规模’的设备。” 本文介绍了三家在医疗器械领域里分属不同规模的生产精密装配作业设备的公司。

机械制造专业外文翻译--机床夹具的分类与构成

外文原文： Machine classification and pose fixture 1 fixture in the role of machining Workpiece clamping fixture is a kind of process equipment, it is widely used in mechanical machining of the manufacturing process, heat treatment, assembly, welding and testing processes. In the use of metal-cutting machine tools collectively referred to as the jig fixture. n a modern production machine is an indispensable fixture of the process equipment, machining of the workpiece, the processing requirements in order to ensure. First of all to the workpiece and the machine tool relative to a correct position, and this location during processing does not change the impact of external forces. To this end, during the pre-machining, workpiece clamping must be good. There are two ways to clamp workpiece: one is directly clamping the workpiece in the machine table or on the chuck; The other is the workpiece in the fixture on the fixture. The first method used when the workpiece clamping, the general design requirements have to press lines in the surface to draw the size and location, clamping, or when the needle is zoned dial indicator to find is after the clamping. This method need special equipment, but low efficiency, are generally used for one-piece and small batch production. Large quantities, mostly with the workpiece clamping fixture. With the merits of the workpiece clamping fixtures are as follows: (l) Guarantee the stability of the machining accuracy of workpiece. Workpieces with clamping fixture, the workpiece relative to the location of tool and machine tool to ensure the accuracy of the fixture from the technical level of workers, so that a number of workpiece machining accuracy of the line. (2) To improve labor productivity. Workpiece clamping fixture can facilitate the user easily、rapidly, and the workpiece does not need to find is crossed, can significantly reduce the supplementary working hours, to improve labor productivity; workpiece in the fixture after the fixture to improve the rigidity of the workpiece, thus cutting the amount of increase, to improve labor productivity; can use more pieces of multi-workpiece clamping fixture, and the use of efficient clamping bodies, to further improve labor productivity. (3) To expand the use of machine tools. Machine tools in general use a dedicated machine tool fixture can expand the scope of the process and give full play to the potential of machine tools to achieve a multi-machine use. For example, the use of a

机械毕业设计英文外文翻译71车床夹具设计分析

机械毕业设计英文外文翻译71车床夹具设计分析 附录A Lathe fixture design and analysis Ma Feiyue (School of Mechanical Engineering, Hefei, Anhui Hefei 230022, China) Abstract: From the start the main types of lathe fixture, fixture on the flower disc and angle iron clamp lathe was introduced, and on the basis of analysis of a lathe fixture design points. Keywords: lathe fixture; design; points Lathe for machining parts on the rotating surface, such as the outer cylinder, inner cylinder and so on. Parts in the processing, the fixture can be installed in the lathe with rotary machine with main primary uranium movement. However, in order to expand the use of lathe, the work piece can also be installed in the lathe of the pallet, tool mounted on the spindle. THE MAIN TYPES OF LATHE FIXTURE Installed on the lathe spindle on the lathe fixture Installed in the fixture on the lathe spindle in addition to three-jaw chuck, four jaw chuck, faceplate, front and rear dial with heart-shaped thimble and a combination of general-purpose lathe fixture folder outside (as these fixtures have been standardized and machine tool accessories, can be purchased when needed do not have to re-design), usually need to design special lathe fixture. Common special lathe folder with the following types. Fixture took disc lathe