Types Of Dies In Sheet Metal, Die Construction, ( Tool Making And Tool Engineering)
钣金模具的类型以及模具结构(工具制造与工具工程学)
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2019-05-15 21:56
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Sheet Metal Stamping Dies 

钣金冲压模具

Stamping dies are used to produce the high volume production by stamping process. The die will have the ability to provide appropriate stamping force to perform the required operation. In the die there will be two parts, upper half and the lower half. These part can also be referred as male part and female part. Male or female parts can take either the upper position or the lower position. 

冲压模具是通过冲压工艺来进行大批量生产的。冲压模具能够提供合适的冲压力,完成所需的工序。冲压模具由两部分组成,即上半部分和下半部分。这两部分也可以称作凸件和凹件。凸件可安装在上部位置或下部位置,相应地,凹件也可安装在下部位置或上部位置。

Construction of dies

模具结构

 In a tool, the punches of respective operations like blanking and punching is at the ram or at the bed of the plate. The ram will be bolted with the bed of the machine.

在冲压模具中,落料以及冲孔等工序所需的凸模安装固定于滑块或夹板,而滑块与机身通过螺栓进行连接。

Types Of Dies

模具的类型

The different types of dies are given below. The difference between them is important to understand.

下文简述了不同类型的模具。了解这些模具之间的区别很重要。

Simple Dies

简单模

Dies which can perform only one operation in one stroke by press are known as simple dies. This operation can be either cutting operation or forming operation.

在一个冲压行程中,仅能完成一道工序的模具称为简单模。这道工序可以是冲切工序,也可以是成形工序。

Combination Die

组合模

These dies are also able to perform more than one operation at one machine station. Since compound die can perform only cutting operation, this die can perform bending or drawing operation along with cutting operations. Because of these properties in the die it is called combination die. For example, to produce a cup shaped component the combination die can be used for blanking punching and drawing simultaneously. 

组合模也能在一个机台(设备工位)完成多道工序。复合模仅能执行冲切工序,而组合模,除可执行冲切工序外,还可完成弯曲或拉深工序。由于组合模具有这些性能,所以它被称为组合模。例如:为生产杯状零件,可以用组合模同步执行落料、冲裁以及拉深工序。

Compound Die

复合模

Compound dies are those in which more than one operations can be performed by one stroke of press at a single station. Basically these types of dies are cutting tools. In such dies only cutting operations can be performed. For example a washer can be pressed out by performing blanking and piercing operation at the same station. These types of dies are very accurate than dies of single operation. Mass production by these dies is more economical than single operation die.

复合模是一种在一个工位上通过一个冲压行程,就可以完成多道的工序的模具。这类模具基本都是冲切模具。这类模具仅能执行冲切工序。例如,可以通过在同一工位执行落料和冲孔工序来压制垫圈。这类模具的精度高于单工序模(简单模)。与单工序模相比,利用复合模进行批量生产更经济。 

Progressive Dies or follow Dies

级进模或顺序模

Die which can perform series of operations is called progressive or follow die. The operation is performed at each station on a work piece during a stroke of press. The work piece is transferred to the next station between the strokes. In every stroke a finished work is completed. For example, if piercing is done on a part in one stroke, the blanking punch tool cut a blank in the metal in which the previous hole is pierced at previous station. That is why after the first stroke, when the holes will be punched, the finished product will be produced by each stroke of press.

可以完成系列工序的模具称为级进模或顺序模。在一个冲压行程期间,在每一个工位均对工件完成一道工序。在两个行程间隔期间,工件被输送至下一个工位。在每一个冲压行程中,均有成品工件完工。例如,如果在一个冲压行程中对工件进行冲孔,则落料冲模所冲切的金属坯料,其中的前面的孔就是在前一个工位冲透的。这就是为什么在第一个冲压行程之后,当要进行冲孔时,成品应通过各个冲压行程来制造的原因。

Transfer Dies

自动模 

In the transfer dies, the metal work piece is not fed progressively from one to another work station, as in the progressive dies. But in these type of dies the already blanked out work-piece is fed mechanically from one station to another station.

对于自动模,金属工件并非像级进模那样,逐级地从一个工位送入另一个工位。而是在这类模具中,采用机械方式,将已经冲裁出的工件从一个工位送入另一个工位。

Multiple Dies Or Gang Dies

多位模或多头冲模

Multiple dies are those which has the ability to produce more than one work pieces in a single stoke of the press. This is also called Gang Dies.  In this die the number of simple dies and punches are combined or ganged together so that it can produce more than one parts at each stroke of the press.

在一个冲压行程中,多位模能够生产多个零件。多位模也称为多头冲模。在这种模具中,若干简单模与多个凸模进行组合,因此,多位模可在每一个冲压行程生产多个零件。

Inverted Dies

倒置模

In other dies, the punching tool is held in the punch holder plate which is fastened to the ram. On the other side, the die is fitted with die holder which is fastened at the bed of press. In the inverted dies there is a difference. The places of punch and die are interchanged. In this the punch if fastened at the bed of press and die is attached with the ram.

在其他模具(非倒置模)中,冲孔凸模固定在凸模定位板,而凸模定位板固定在滑块上。在另一侧,凹模与下模座装配在一起,而下模座固定于压力机底座。在倒置模中,有一点不同。凸模和凹模的位置进行互换,凸模安装在压力机底座上,而凹模与滑块连接。

Difference between progressive die, combination die and compound die

Compound die performs one or more operation simultaneously while progressive die performs series of operations and combination die performs two or more operations at one station. Compound die only performs cutting operations and combination dies can perform other operations like bending, drawing etc.

级进模、组合模与复合模之间的区别 

复合模同时执行一道或多道工序,而级进模在一个工位执行一系列的工序,组合模在一个工位执行两道或两道以上的工序。复合模仅仅执行冲切工序,而组合模还可执行其他工序,如弯曲及拉深等工序。 

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