An innovative disc for machining center structures are hexapods, also called Stewart platforms. In these machines, the spindle is gripped by six bars of variable length, and can move along 6 axes.

Traditional machining centers basically consist of mechanisms in series, with cantilever type structures. These characteristics are not good from the point of view of precision since the deformations of each piece add up, accumulating a total deviation in the spindle and cantilever-type structures allow large deformations, resulting in low rigidity.

On the other hand, in Stewart platforms, the concept of parallel mechanisms is used, on the other hand, most of the forces on the members are axial, so the structure is inherently more rigid. Parallel load-bearing members deliver low average error and suffer low force variations at the joints compared to series mechanisms. The bars consist of telescopic tubes with ball screws.

Another improvement pursued with this innovative type of machines is to increase the volume in which the spindle can act, to be able to machine large pieces. On the other hand, by having six degrees of freedom you can have the axis of the cutting tool constantly perpendicular to the surface being machined.

Un centro de mecanizado tiene una estructura muy parecida a los sistemas informáticos clásicos, pudiendo comunicarse entre ellos. Actualmente pueden llegar a formar parte de una red informática. Básicamente se distinguen las siguientes partes o estructuras en los sistemas de los centros de mecanizado:.

central processing unit or CPU

It is the heart of the system. It is composed of a computer structure where the microprocessor determines the actual capacity of the CNC machine. Among the functions it has to perform are:

Input peripherals

They are all the elements that serve to provide information to the CPU. Among the most important are the following:

Data storage units

Currently the most used types are:

Output peripherals

They are all those elements that serve to receive the information provided by the CPU. Among the most important are:

The monitor informs the operator of all the events that are occurring between the different communication processes, both input and output data.

Link unit, PLC

Once the data has been processed by the CPU, the information is transmitted to the different organs of the machine, so that the execution can proceed. This data is not sent directly to the machine but rather through the PLC, also called a programmable controller.

A continuación se presentan algunas de las aplicaciones que un Centro de Mecanizado puede tener:.

High speed machining

The cutting speed ranges are classified as:.

It should be taken into account that high speed machining becomes important when the cutting time is long compared to other operating times on the piece. It must be carefully studied in which applications the implementation of high cutting speeds is justified. Some examples are:

A positive aspect of high speed machining is the rapid removal of heat due to the number of chips coming off the part.

The characteristics of machine tools that operate at high speed are:.

Ultra-precision machining

The demand for greater precision arises from applications in computing, electronics and nuclear, among others. Some products are optical mirrors"), memory disks "Memory (computing)") for computers and drums for photocopying machines. Surface finish requirements are on the order of tens of nanometers.

CAD (computer-aided design) - CAM (computer-aided manufacturing) is a system that allows the dental pieces to be designed using a computer program that are then placed in the patient's mouth.

The use of this technology entails significant savings for the patient, both in economic costs and in the time spent on treatment. Likewise, the fidelity, accuracy and precision with which it makes the creation of dental pieces possible is unmatched by any other system.

It is a replica created computer-wise in 3 dimensions that makes it possible to carry out more precise, more agile and faster work than with traditional methods of taking measurements in the patient's mouth through silicones and artisanal mold manufacturing.

CAD-CAM technology is based on a scanner that obtains a perfectly faithful image of the patient's mouth. In this way, several measures are avoided that unnecessarily lengthen the process.

From there, the prosthetist obtains a digital file of the mouth and through the software program projects the piece in 3D. This file is sent to our Spanish dental implant supplier, which we will learn about in more detail in future posts, and in an approximate period of 48 to 72 hours, the custom-made dental piece is digitally created.

An innovative disc for machining center structures are hexapods, also called Stewart platforms. In these machines, the spindle is gripped by six bars of variable length, and can move along 6 axes.

Traditional machining centers basically consist of mechanisms in series, with cantilever type structures. These characteristics are not good from the point of view of precision since the deformations of each piece add up, accumulating a total deviation in the spindle and cantilever-type structures allow large deformations, resulting in low rigidity.

On the other hand, in Stewart platforms, the concept of parallel mechanisms is used, on the other hand, most of the forces on the members are axial, so the structure is inherently more rigid. Parallel load-bearing members deliver low average error and suffer low force variations at the joints compared to series mechanisms. The bars consist of telescopic tubes with ball screws.

Another improvement pursued with this innovative type of machines is to increase the volume in which the spindle can act, to be able to machine large pieces. On the other hand, by having six degrees of freedom you can have the axis of the cutting tool constantly perpendicular to the surface being machined.

Un centro de mecanizado tiene una estructura muy parecida a los sistemas informáticos clásicos, pudiendo comunicarse entre ellos. Actualmente pueden llegar a formar parte de una red informática. Básicamente se distinguen las siguientes partes o estructuras en los sistemas de los centros de mecanizado:.

central processing unit or CPU

It is the heart of the system. It is composed of a computer structure where the microprocessor determines the actual capacity of the CNC machine. Among the functions it has to perform are:

Input peripherals

They are all the elements that serve to provide information to the CPU. Among the most important are the following:

Data storage units

Currently the most used types are:

Output peripherals

They are all those elements that serve to receive the information provided by the CPU. Among the most important are:

The monitor informs the operator of all the events that are occurring between the different communication processes, both input and output data.

Link unit, PLC

Once the data has been processed by the CPU, the information is transmitted to the different organs of the machine, so that the execution can proceed. This data is not sent directly to the machine but rather through the PLC, also called a programmable controller.

A continuación se presentan algunas de las aplicaciones que un Centro de Mecanizado puede tener:.

High speed machining

The cutting speed ranges are classified as:.

It should be taken into account that high speed machining becomes important when the cutting time is long compared to other operating times on the piece. It must be carefully studied in which applications the implementation of high cutting speeds is justified. Some examples are:

A positive aspect of high speed machining is the rapid removal of heat due to the number of chips coming off the part.

The characteristics of machine tools that operate at high speed are:.

Ultra-precision machining

The demand for greater precision arises from applications in computing, electronics and nuclear, among others. Some products are optical mirrors"), memory disks "Memory (computing)") for computers and drums for photocopying machines. Surface finish requirements are on the order of tens of nanometers.

CAD (computer-aided design) - CAM (computer-aided manufacturing) is a system that allows the dental pieces to be designed using a computer program that are then placed in the patient's mouth.

The use of this technology entails significant savings for the patient, both in economic costs and in the time spent on treatment. Likewise, the fidelity, accuracy and precision with which it makes the creation of dental pieces possible is unmatched by any other system.

It is a replica created computer-wise in 3 dimensions that makes it possible to carry out more precise, more agile and faster work than with traditional methods of taking measurements in the patient's mouth through silicones and artisanal mold manufacturing.

CAD-CAM technology is based on a scanner that obtains a perfectly faithful image of the patient's mouth. In this way, several measures are avoided that unnecessarily lengthen the process.

From there, the prosthetist obtains a digital file of the mouth and through the software program projects the piece in 3D. This file is sent to our Spanish dental implant supplier, which we will learn about in more detail in future posts, and in an approximate period of 48 to 72 hours, the custom-made dental piece is digitally created.