减速机外文翻译

2

．夹具设计的方案设计：

1

）确定夹具的类型。

（

2

）根据六点定位规则确

定工件的定 位方式，选择合适的定位元件。

（

3

） 确定工件的夹紧方式，选择合适

的夹紧装置。

（

4

）确定刀具的调整方案，选择合适的对刀元件或导向元件。

< br>（

5

）

确定夹具与机床的连接方 式。

（

6

）

确 定其他元件和装置的结构形式，

如分度装置、

靠模装置等。

（

7

）

确定夹具总 体布局和具体的结构形式。

（

8

）

绘制总体草图。

（

9

）

进行工序精度分析。

（

10

）对动力夹紧力验算。

小结

综上所述，

机械制造工艺与夹具是机械制造业的基础，

是将设 计图样转化成

产品的必要条件。

一套符合生产实际的工艺技术和 夹具，

可以实现产品的

“优质、

高产、

低耗”

的条件。

本次减速器壳体的机械 加工工艺及镗夹具的设计是在学完

了机械制造工艺理论课和大部分专业课的基础上进行的 大学毕业前的最后一个

实践环节。

是对所有课程一次深入的综合 性的复习，

也在设计过程中拓展了更多

的相关专业知识面，

是一次理论联系实际的适应性训练。

通过该次设计不仅能锻

炼自己的分析和解决问题的能力，

同时也培养了查阅手册及书籍资料的能 力，

为

以后毕业后工作积累了一定的经验。

a literature review (procedure)

Reducer is a kind of dynamic convey mechanism, using the gear speed converter,

the motor (motor) by turning the rotary reduction to want, and get a larger torque. In

the

present

that

is

used

to

transfer

power

and

movement

speed

reducer

application

scope

is

quite

wide.

In

almost

all

kinds

of

mechanical

transmission

system

can

see

traces of it, from the transport ships, automobiles, motorcycles, construction of heavy

machinery,

processing

machinery

and

automated

production

equipment

used

in

the

machinery

industry,

to

the

everyday

life

of

common

home

appliances,

watches

and

clocks, etc. Its application in power transmission, to small loads, precision of Angle

transmission can meet the application of speed reducer, and in industrial applications,

deceleration machine has to slow down and increase torque. Therefore widely used in

the speed and torque conversion equipment.

The role of reducer are:

1)

slow

down

at

the

same

time

improve

the

output

torque,

torque

output

ratio

according to the motor output by reduction ratio, but not beyond reducer rated torque.

2)

slow

down

and

reduce

the

load

moment

of

inertia,

moment

of

inertia

of

the

decrease of reduction ratio of the square. You can have a look at general motors have

a inertia values.

Reducer, the working principle: reducer is generally used in driving equipment of low

speed high torque, the motor internal combustion engine or other high speed running

of

power

through

the

reducer

input

shaft

of

the

less

number

of

teeth

on

the

gear

engagement output shaft of big gear to achieve the purpose of reduction of ordinary

speed

reducer

gear

also

can

have

a

few

on

the

same

principle

to

the

ideal

of

slow

effect, the ratio of the number of teeth on the gear size, is the transmission ratio.

Speed reducer type

Reducer

is

a

relatively

sophisticated

machinery,

the

use

of

its

purpose

is

to

reduce rotation speed, increase torque. Its sort is various, different models, different

kinds

have

different

USES.

There

are

many

types

of

reducer,

according

to

the

transmission type can be divided into gear reducer, worm gear reducer and planetary

gear

reducer;

According

to

the

different

can

be

divided

into

single-stage

and

multi-stage

transmission

series

gear

reducer;

According

to

the

gear

shape

can

be

divided into cylindrical gear reducer, cone gear reducer and the cone - cylinder gear

reducer; According to transmission can be divided into the expansion, the shunt type

layout and coaxial reducer. The following is a common reducer classification:

(1) the cycloidal reducer

(2) hard tooth surface of cylindrical gear reducer

(3) the planet gear speed reducer

(4) soft tooth surface reducer

(5) the three-ring gear reducer

(6)Hoist reducer

(7) and worm reducer

(8) shaft mounted machine of decelerate of hard tooth flank

(9) stepless transmission

Process

route

is

manufacturing

unit

in

accordance

with

the

provisions

of

the

process to complete production tasks, mainly used for process production scheduling

and shop floor cost statistics. It contains the positioning base of choice, on the surface

of the main processing, processing stage division and the reasonable combination of

processes,

etc.

By

looking

at

the

Yang

Shuzi

Ed.

The

handbook

of

mechanical

processing craft

Now this paper discusses the content as follows:

Positioning base of choice

When making process, select the main purpose of the locating datum is to ensure

that the location accuracy of machining surface, so the selection positioning base of

general

principles

should

be

from

a

higher

position

precision

of

the

surface

of

the

choice. Locating datum selection including the selection of crude benchmark and fine

benchmark.

In

making

the

parts

machining

process

route,

always

first

consider

choose

fine

benchmark

to

every

major

surface

processing,

and

then

considering

how

the

thick

datum processing as fine benchmark surface first. Mechanical processing craft route

formulation

of

rough

benchmarks

and

fine

benchmark

choice

is

critical,

choice

is

reasonable is directly related to global processing craft route formulation.

(1) coarse benchmark choice

Consider

when

choosing

a

crude

benchmark

focuses

on

how

to

guarantee

the

machining surface have enough margin, make no machining surface and the surface