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introduction：Die casting mold is a large category of molds。In recent years，With our country automobile、The rapid development of motorcycle industry,Die casting industry ushered in a new period of development。But at the same time,Also the comprehensive mechanical properties of die casting die、Life and mold structure put forward higher requirements...
2016-01-29 Reading quantity 1632
introduction： The upper die of the punching machine is the upper half of the whole pair of punching dies，That is, the part of the die mounted on the slider of the press。The upper die seat is the top plate-like part of the upper die，The workpiece is pressed against the press slide，And fixed by the die handle or directly with the press slider。The lower die is the lower half of the whole pair of dies，That is, the die part installed on the press table surface。The lower die seat is a plate-like part on the bottom surface of the lower die，When working, it is directly fixed on the press work surface or the backing plate...
2016-01-29 Reading quantity 1552
introduction：
47、Composite die
The composite die is in one stroke of the press，A die that performs two or more operations at the same station。
2016-01-29
Reading quantity 1473
introduction：
1、Upper die
The upper die is the upper half of the whole pair of dies，That is, the part of the die mounted on the slide of the automatic punch press。
2、Upper die holder
The upper die seat is the top plate-like part of the upper die，The workpiece is pressed against the press slide，And fixed by the die handle or directly with the press slider。
2016-01-29
Reading quantity 1658
introduction： This paper describes the method of naming relay type The model meaning of the relay indicates the application of the marking method The model name of the domestic relay consists of four parts：Part one+Part two+Part Three+Part IV The first part uses letters to indicate the main name type of the relay。 JR...
2016-01-28 Reading quantity 2176
introduction：Time relay Time relay is a kind of control electrical apparatus which realizes delay control by electromagnetic principle or mechanical principle。There are many kinds of it，Air damped type、Electric type and electronic type。 &n...
2016-01-28 Reading quantity 1558
introduction： The reducer is a power transmission mechanism，Speed converters using gears，Switch machine（motor）The number of turns slows down to the desired number of turns，And get a larger torque mechanism。In the mechanism currently used to transmit power and motion，The application range of reducer is quite wide。It can be seen in almost all kinds of mechanical transmission systems，Secondary traffic...
2016-01-27 Reading quantity 1642
introduction： Coupling inspection is a key part to ensure the installation and service life of the coupling，Reasonable inspection in accordance with inspection procedures，Helps to provide work efficiency and avoid missed and wrong detection during labor。Generally speaking，Coupling inspection items mainly include the following items：
2016-01-27 Reading quantity 1579
introduction：Fit tolerance（fittolerance）Refers to the holes that form a fit、Shaft tolerance sum。It is the amount of variation allowed in the gap or interference。The size and position of the tolerance zone of the hole and shaft constitute the fit tolerance。The size of the mating tolerance of the coupling hole and shaft indicates the mating accuracy of the hole and shaft。The size and position of the hole and shaft fitting tolerance zone indicate the fitting precision and fitting nature of the hole and shaft。 &...
2016-01-27 Reading quantity 1571
introduction：
one、plcHistory of development
Programmable logic controller，Also known as programmable controller，There have been many definitions。It can be regarded as a specially designed industrial computer，The whole design principle is simple and practical。
2016-01-27
Reading quantity 1954
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